JP5289716B2 - Tilt detector - Google Patents

Description

The present invention relates to a tilt detector that detects a tilt angle of a ground or the like.

  A water tube type inclinometer and a bubble type inclinometer are known as an inclination detector for detecting an inclination that is an inclination angle of a surface such as the ground with respect to a horizontal plane. For example, as a water tube type inclinometer, one in which a liquid is stored in a U-shaped tube fixed to a pedestal is known, and this is mounted on a surface (surface to be measured) whose inclination is to be measured. When measuring the inclination of the surface to be measured by detecting the state of the liquid moving in the U-tube according to the degree of inclination of the surface to be measured at the liquid level of the U-tube It is. Bubble type inclinometers are known in which a liquid is enclosed in a tube and bubbles are formed. This is because when the liquid is placed on the surface to be measured, the bubbles in the tube are in accordance with the inclination of the surface to be measured. By detecting the state of the movement, the inclination of the surface to be measured is detected.

  In addition to the tilt detector, a bifurcated communication pipe is filled with liquid, and a pair of pressure sensors are arranged at both ends of the communication pipe so that the pressure receiving surfaces are in close contact with the liquid surface. There has been proposed an inclination angle detection device configured to seal a liquid and detect an inclination angle from an output difference between two pressure sensors (Patent Document 1).

Japanese Utility Model Publication No. 63-138810

  However, in the conventional water tube type inclinometer and bubble type inclinometer, the inclination of the surface to be measured is converted into a physical state change such as the movement of bubbles, and the state change is measured for the inclination of the surface to be measured. Therefore, the degree of inclination that can be measured is limited to the limit that can be visually discerned, and an extremely small inclination angle could not be detected.

  Moreover, since the inclination angle detection apparatus of patent document 1 arrange | positions a pressure sensor inside the connection pipe | tube which enclosed the solution, and the detection part of a pressure sensor is directly directed to the liquid level, in this inclination angle detection apparatus, There is a possibility that the liquid may be in direct contact with the detection part of the pressure sensor, the pressure sensor may malfunction, and the tilt state may not be measured with high accuracy.

  In particular, when trying to discriminate extremely small crustal movements, it is important to capture the precursor, and it is important to capture changes in the slope of the ground with high accuracy. In addition, it is extremely beneficial to obtain knowledge about the slight inclination of the ground with higher accuracy, and even if the inclination is small, an inclination detector that can detect the inclination with high accuracy, that is, a minute inclination detector, Is desired.

In view of the above problems, the present invention provides an inclination detector that is arranged on a measurement target surface to be measured, and can detect the inclination with high accuracy even if the measurement target has a very small inclination. The object is to provide a detector.

The present invention is disposed on a measurement surface to be measured of the tilting inclination a tilt detector for detecting the inclination of the surface to be measured,
A liquid storage tank comprising a container storing liquid and forming an interface with the liquid inside the container, and a plurality of support portions that contact the outer surface of the liquid storage tank and support the liquid storage tank A support means formed by directly or indirectly rigidly supporting the support,
The container forms an inclined surface on the inner surface of the container that rises outward from a predetermined portion of the inner surface,
The container is provided with a support piece on the outer bottom surface of the container, and the support piece extends downward,
A through-hole penetrating the support piece is provided in the support piece of the container, and a rod-shaped body made of a rigid body is disposed through the through-hole,
The support means is provided with a load detection body that detects a load applied to the support portion on a support body that forms at least one of the support portions,
The rod-shaped body is rigidly coupled with at least one support body provided with a load detector on one end side, and has a diameter larger than the diameter of the through hole on the other end side of the rod-shaped body. It has a rigid piece,
A support body that is at least one of the support bodies on which the load detectors are disposed and is rigidly connected to one end of the rod-shaped body contacts the support piece of the container in the left-right direction, and the support piece of the container in the left-right direction. One support body different from the support body in contact is in contact with the lower end of the support piece to form a support portion.
Tilting the specific means for determining the support pieces in lateral direction are arranged on a support which contacts the inclination of the measurement surface based on the detected load at the load detecting body of the container is provided, characterized in that slope detector, and the gist.

  In the present invention, the support of the support means in the inclination detector contacts the container of the liquid storage tank to support the liquid storage tank. At this time, in the liquid storage tank, according to the inclination of the liquid storage tank The fulcrum reaction force acting at the contact position between the liquid storage tank and the support is balanced with the weight of the liquid storage tank, that is, the weight of the liquid storage tank itself. The movement is restricted and it stops. In this specification, the inclination of the liquid storage tank refers to the inclination angle of the container with reference to the state of the container when the inclination detector is placed on a horizontal plane (inclination degree 0 (zero) °). Shall. In addition, in the case of the inclination of the inclination detector, it indicates the inclination angle of the support means with reference to the state of the support means when the inclination detector is placed on a horizontal plane (inclination degree 0 °). To do.

  In the present invention, when the inclination of the liquid storage tank changes, the position of the center of gravity of the liquid storage tank moves. When the center of gravity of the liquid storage tank moves and the distance from the contact position between the liquid storage tank and the support to the center of gravity changes, the fulcrum reaction force acting at the contact position changes, and the fulcrum reaction force after the change Will be balanced with the weight of the liquid storage tank. In particular, in the present invention, a liquid storage tank in which an interface is formed by storing a liquid inside the container is provided, and this liquid storage tank has a change in inclination compared with a liquid storage tank in which no interface is formed. The movement of the center of gravity accompanying the movement is large. And the change of the fulcrum reaction force which arises according to the inclination of a liquid storage tank in the contact position of a liquid storage tank and a support body becomes large, so that the movement of the gravity center position of a liquid storage tank is large. Then, in this invention, even if the change of the inclination of a liquid storage tank is very slight, the fulcrum reaction force in a liquid storage tank can be changed a lot.

  Here, in the present invention, the load detector detects the load applied from the liquid storage tank to the support, but since this load is a value corresponding to the fulcrum reaction force, if the change of the fulcrum reaction force is large, The change in load also increases. Therefore, in the present invention, even if the change in the inclination of the liquid storage tank is very small, the change in the load can be increased to such an extent that it can be easily captured by the load detector, and Based on this, even if the inclination of the liquid storage tank is very small, the inclination can be specified.

  Furthermore, in the present invention, since the inclination of the surface to be measured and the inclination of the inclination detector have a predetermined correspondence and the liquid storage tank is supported by the support member, the inclination of the support means of the inclination detector and the liquid The inclination of the storage tank has a predetermined correspondence, and the inclination of the liquid storage tank and the inclination of the surface to be measured are associated with each other.

  Thus, according to the present invention, even if the inclination of the surface to be measured is very small, the inclination can be specified based on the load detected by the load detector.

  In addition, according to the present invention, it is possible to eliminate the need to detect the inclination based on the visual observation of the measurer who measures the inclination of the surface to be measured, and thus cannot be determined by the visual observation of the measurer. It is easy to detect even a very slight inclination.

  According to the present invention, the load applied to the support portion from the liquid storage tank is detected by the load detector, so that the value detected by the liquid adhering to the portion of the load detector that detects the load is detected. The possibility of causing an error can be suppressed, and it becomes easy to maintain highly accurate load detection.

  According to the present invention, the plurality of supports constituting the support means can be appropriately selected in shape as long as the liquid storage tank is supported from the outer surface of the container. The degree is great. In addition, each support body may be rigidly coupled directly, or it may be rigidly coupled indirectly via the abutment by using wood or a rigid plate as the abutment. May be. Furthermore, the support means may be rigidly connected to the pedestal.

According to the present invention, the container of the liquid reservoir has been eclipsed set the support piece, which makes it possible to enhance the degree of freedom in shape design of the position and the storage tank of the support of the support means.

  According to the present invention, the support means can be arranged so that the support body on which the load detection body is arranged faces the support piece of the liquid storage tank, and the load detection body is arranged according to the shape of the support piece. The degree of freedom of position can be increased.

According to the present invention, the support piece of the container is provided with a through-hole penetrating the support piece, and the rod-shaped body made of a rigid body is disposed through the through-hole, and the rod-shaped body is arranged on one side. Further, at least one of the support bodies including the load detection body is rigidly connected, and a portion having a larger diameter than the diameter of the through hole is formed on the other side of the rod-shaped body . This rod-shaped body has one side rigidly coupled with at least one support having a load detection body, and the other side of the rod-shaped body has a locking piece having a diameter larger than the diameter of the through hole. Therefore, the rod-shaped body and the locking piece form a fixing member that fixes the relative arrangement of the support body and the support piece.

  In such an inclination detector, at least one of the supports including the load detector is rigidly connected to the rod-shaped body and is disposed facing the through hole of the support piece. When the load applied from the liquid reservoir to the support increases with the movement of the center of gravity of the tank, the outer edge portion of the through hole (the boundary portion between the surface inside the through hole and the outer surface of the support piece) The liquid storage tank is supported by forming a support portion at the contact portion. On the other hand, when the load applied to the support body from the liquid storage portion decreases and eventually the liquid storage portion causes a tensile force to act on the support portion, the weight of the liquid storage tank is reduced with respect to the locking piece. Be loaded. Even in that case, since the locking piece is rigidly connected to the support via the rod-like body, the relative arrangement of the support and the support piece is fixed, and the liquid storage tank is stably supported. . In this way, the rod-shaped body and the locking piece form a fixing member that fixes the relative arrangement of the support and the support piece.

  Further, in the present invention, since the load detection body is disposed on the support body provided with the fixing member, the load applied to the support portion is reduced as the center of gravity of the liquid storage tank is moved. Even in this case, the load can be detected stably. Furthermore, when the load detector is capable of detecting not only the load applied in the pushing direction but also the force acting in the pulling direction, the load detector alone is used as the liquid storage tank. Not only is the inclination of the surface to be measured corresponding to the case where it is tilted so as to apply a pushing force to the load detector, but also the liquid reservoir is inclined so as to apply a pulling force to the load detector. Therefore, it is possible to specify the inclination of the surface to be measured corresponding to the case, and it is possible to detect the inclination of a plurality of types of surfaces to be measured.

In the present invention, the container is formed with an inclined surface that rises outward from a predetermined portion of the inner surface on the inner surface of the container. Compared to a liquid storage tank in which the wall surface erected vertically from the inside is formed on the inner surface of the container, the mobility of the center of gravity of the liquid storage tank is further increased even if the inclination of the liquid storage tank changes slightly. Thus, the change in the fulcrum reaction force can be increased, and the change in the fulcrum reaction force can be easily grasped as a change in the load detected by the load detector. In the present invention, since the inclination of the liquid storage tank is determined according to the inclination of the surface to be measured, it is possible to detect the inclination of the surface to be measured with a very small degree of inclination with higher accuracy. It becomes possible.

  The tilt detector 1 of the present invention will be described in detail using an example shown in FIGS.

  As shown in FIGS. 1 (A) and 1 (B), the inclination detector 1 of the present invention includes a liquid storage tank 4 composed of a container 3 storing a liquid 2, a support 5 that supports the liquid storage tank 4, and load detection. Support means 7 having a body 6 and an abutment 20 and inclination specifying means 8 for determining the inclination of the surface to be measured based on the load detected by the load detection body 6 are provided.

  The liquid storage tank 4 forms an interface 9 inside the container 3. The interface 9 formed inside the container 3 is formed by storing the liquid 2 inside the container 3. The interface 9 may be an interface formed between different types of liquids in addition to the liquid level formed at the interface between the liquid and the gas. However, when the interface 9 formed inside the container 3 is a liquid surface formed at the interface between the liquid and the gas, the specific gravity with the interface 9 as a boundary is higher than when the interface 9 is formed between different types of liquids. This is preferable in that it is easy to increase the mobility of the center of gravity of the liquid storage tank 4 in accordance with the change in the inclination of the liquid storage tank 4.

  The interface between the liquid and the gas is formed by storing the liquid 2 having a volume smaller than the capacity of the container 3 in the container 3.

  The interface between different types of liquids can be formed by storing in the container 3 a plurality of types of liquids that do not cause a chemical reaction with each other, have different specific gravity, and are separated into different layers. In this case, it is preferable that the inside of the container 3 is filled with these plural kinds of liquids.

  The liquid 2 is not particularly limited to water, mercury, organic matter, etc., but a liquid having a high specific gravity can be preferably used in that the center of gravity of the liquid storage tank 4 can be greatly moved. Specifically, mercury can be preferably used.

  The container 3 only needs to be configured so that the liquid 2 can be stored inside the container 3. For example, the container 3 may be formed in a shape in which the container 3 is opened upward. It is preferable that the inside of the container 3 is configured so as to be able to be sealed in order to prevent the possibility that the outside of the container 3 comes out. Sealing the inside of the container 3 can be specifically realized, for example, by providing a lid (not shown) that closes the opening of the container 3.

  The support means 7 is configured by rigidly connecting two supports 5 and 5 formed in an appropriate shape according to the shape of the liquid storage tank 4 to a support 20 made of a rigid body. At this time, the abutment 20 not only supports the individual supports 5 but also serves as a connecting material for indirectly connecting the two supports 5 and 5.

  Even if the support bodies 5 and 5 change the inclination of the inclination detector 1, there is little or no deviation in the relative arrangement of the support means 7 and the liquid storage tank 4 (the support means 7 and the liquid storage tank). The liquid storage tank 4 is supported (fixed support or rotational support) so that the liquid storage tank 4 does not move relative to each other. Further, the support bodies 5, 5 support the liquid storage tank 4, and are in contact with the outer surface portion of the liquid storage tank 4 to form support portions 18, 18. The portions corresponding to the contact positions A and B between the liquid storage tanks 5 and 5 and the liquid storage tank 4 are the support portions 18 and 18.

  As long as the support bodies 5 and 5 are formed in a shape that can support the liquid storage tank 4 when the tilt detector 1 is placed on the surface to be measured, a curved convex surface, a flat surface, or a wedge shape. It does not specifically limit etc., It designs suitably according to the shape of the container 3 of the liquid storage tank 4. FIG. Further, depending on the shape of the supports 5 and 5, the support bodies 5 and 5 may be directly rigidly coupled without being limited to being indirectly rigidly coupled via the abutment 20.

  In the example of FIG. 1, the support body 5 is formed in a wedge shape having a pointed tip and formed into a convex shape, that is, the support portion 18 has a cross-sectional wedge shape, and the support portion 18 of the support body 5 is the container 3. It is comprised so that it may contact the flat bottom face part in the.

  At least one of the supports 5 is provided with a load detector 6 that detects a load. The load detector 6 detects a load applied to the support 5 on which the load detector 6 is disposed.

  The load detector 6 may be disposed on all of the plurality of supports 5, 5, or may be disposed on a part of the supports 5.

  When the load detector 6 is disposed on a part of the plurality of supports 5, 5, the support 5 on which the load detector 6 is disposed is not particularly limited, but the inclination detector 1. When the inclination of the liquid storage tank 4 is changed by changing the inclination of the liquid storage tank 4, it is preferable to preferentially select the one having a large change in the load applied from the liquid storage tank 4. If the load changes are equal, any support 5 may be selected with priority.

  For example, when the support means 7 is provided with two supports 5 and 5 and the load detector 6 is to be provided on either one of the supports 5 and 5, When the detector 1 is placed on a horizontal plane and the inclination of the liquid storage tank 4 is made zero, the load (J1) applied from the liquid storage tank 4 to the support 5 and the inclination detector 1 are inclined. When the inclination is given to the liquid storage tank 4, the support part 5 having a large difference (absolute value of (J1-J2)) from the load (J2) applied from the liquid storage tank 4 to the support part 5 is It is preferable to preferentially select the support portion 5 on which the load detector 6 is disposed.

  As the load detector 6, a structure having a mechanism for detecting a load received from the outside can be exemplified, and specifically, a well-known one such as a load cell type measuring instrument (load cell) is appropriately used. Can do.

  When a load cell type measuring instrument is used as the load detector 6, a beam type load cell, an S-shaped load cell, or the like can be preferably used.

  The inclination detector 1 is provided with inclination specifying means 8 for specifying the degree of inclination of the surface to be measured based on the load detected by the load detector 6. The inclination specifying means 8 specifies the inclination angle by converting the load detected by the load detector 6 into the inclination angle of the surface to be measured corresponding to the load.

  The inclination specifying means 8 is not particularly limited as long as it has a function of converting the load detected by the load detector 6 into the inclination of the surface to be measured, and is configured as follows, for example.

  That is, for example, the inclination specifying means 8 includes an arithmetic processing unit such as a CPU or MPU for receiving the load detected by the load detector 6 as electrical data and processing the load in a predetermined order, and an arithmetic processing unit. A memory (storage unit) for storing data used for processing and a RAM and ROM for storing programs for processing of the arithmetic processing unit are provided, and the arithmetic processing unit, the storage unit, the RAM and ROM are electrically connected to each other. Can be connected to each other.

  The storage unit of the inclination specifying means 8 stores in advance a data table in which inclination data of the surface to be measured is associated with load data detected by the load detector 6.

  The inclination specifying means 8 receives the load data detected and transmitted by the load detector 6 at the arithmetic processing unit, and the arithmetic processing unit based on the load data, the inclination data corresponding to the load data. Is called from the data table of the storage unit. In this way, the inclination specifying means 8 can specifically realize the conversion of the load detected by the load detector into the degree of inclination of the surface to be measured.

  In addition, if the inclination detector 1 is provided with a display unit for displaying the inclination, the inclination data called from the data table is displayed on the display unit so that the measurer can visually recognize the inclination. it can. In addition, if a transmission means for transmitting inclination data is provided in the inclination detector 1 and a receiver for receiving the transmitted inclination data is provided, danger such as volcanic eruption or slope failure may occur. It is also possible to receive slope data unattended in remote locations even in highly probable locations.

The inclination measuring method using the inclination detector 1 of the present invention is performed as follows.
The inclination detector 1 is arranged on the inclined surface to be measured for the inclination so that the positions of the support portions 18 of the at least two supports are different in a predetermined direction in which the inclination is to be measured. . And the load detection body 6 detects a load, and the inclination specific | specification means 8 converts the detected load into inclination. In this way, the inclination detector 1 is used to measure the degree of inclination in a predetermined direction of the surface to be measured.

  In the inclination detector 1 of the present invention, the load detected by the load detector 6 is associated with the inclination of the measured surface as follows.

  First, when the inclination detector 1 is placed on a horizontal plane K (K in FIG. 1B), the support portion 5 in the support means 7 is in contact positions A and B with the liquid storage tank 4, The liquid storage tank 4 is supported by receiving the loads Wa and Wb based on the own weight M of the liquid storage tank 4 and applying the fulcrum reaction forces Fa and Fb corresponding to the loads to the liquid storage tank 4, respectively. To do. At this time, in the liquid storage tank 4, the force is balanced between the fulcrum reaction forces Fa and Fb acting at the contact positions A and B between the liquid storage tank 4 and the support 5 and the own weight M of the liquid storage tank 4. ing.

  When the inclination detector 1 is placed on the horizontal plane K, the inclination of the inclination detector 1 and the inclination of the liquid storage tank 4 are 0 (zero) °.

  Next, the inclination detector 1 is placed on the measurement target surface K1 (inclination degree θ (°)) to be measured for inclination. At this time, the inclination detector 1 is placed so that the contact positions A and B are different in the direction in which the inclination direction is to be measured. That is, the inclination detector 1 is placed so that the contact positions A and B are located separately on the downstream side and the upstream side in the inclination direction of the measurement surface K1. In the example of FIG. 1B, the inclination detector 1 is placed so that the contact position A is located on the downstream side in the inclination direction of the measurement surface K1, and the contact position B is located on the upstream side in the inclination direction. .

  The inclination of the inclination detector 1 changes between when it is placed on the horizontal plane K and when it is placed on the measured surface K1 having a different inclination θ from the horizontal plane. ), The inclination of the liquid storage tank 4 also varies. In the example of the inclination detector 1 shown in FIG. 1B, the inclination of the liquid storage tank 4 varies from zero to θ. At this time, the gravity center position of the liquid storage tank 4 moves from the gravity center position G when the inclination of the liquid storage tank 4 is zero to the gravity center position G1 to the downstream side in the inclination direction of the measurement surface K1.

  If the gravity center position of the liquid storage tank 4 moves from the gravity center position G to the gravity center position G1 to the downstream side in the inclination direction of the measured surface K1, the separation distance from the contact positions A and B to the gravity center position changes. The fulcrum reaction force applied to the liquid storage tank 4 from the supports 5 and 5 is changed from Fa and Fb to Fa1 and Fb1, respectively, and the fulcrum reaction forces Fa1 and Fb1 and the own weight M of the liquid storage tank are balanced and contacted. The support of the liquid storage tank 4 is maintained at the positions A and B.

  When the fulcrum reaction force applied to the liquid storage tank 4 changes from Fa and Fb to Fa1 and Fb1, the loads applied to the support portions 5 and 5 corresponding to the contact positions A and B are Wa1 and Wa1, respectively. It has changed to Wb1.

  In the inclination detector 1 of the present invention, the load applied to the support 5 corresponding to the position of the center of gravity of the liquid storage tank 4 is specified by the load detected by the load detector 6. Based on the load detected by the load detector 6, the position of the center of gravity G1 of the liquid storage tank 4 can be determined. Then, as described above, the center of gravity position G1 of the liquid storage tank 4 is associated with the inclination θ of the liquid storage tank 4 as the degree of inclination to be the center of gravity position G1 of the liquid storage tank 4. Here, in the example of FIG. 1B, as described above, the inclination θ corresponds to the inclination of the measured surface K1. In this way, it is possible to detect the inclination θ of the measured surface K1 based on the load detected by the load detector 6.

  The tilt detector 1 can be arranged not only when it is placed on the measurement surface K1 but also at a predetermined angle from the state where it is placed on the measurement surface. In terms of making it possible to omit the process of correcting the difference between the inclination of the tank 4 and the inclination of the surface to be measured, it is preferably arranged in parallel to the surface such as the surface to be measured K1.

  In the inclination detector 1 of the present invention, the liquid 2 is stored in the container 3 of the liquid storage tank 4 to form the interface 9 and is placed on the measurement surface K1 having the inclination θ. However, since the interface 9 maintains a horizontal plane, when the container 3 is viewed parallel to the inclined surface of the measurement surface, the interface 9 has a downward gradient from the downstream in the inclination direction of the measurement surface to the upstream. Looks like. For example, when the interface 9 is formed by an interface between a liquid and a gas, when the container 3 is viewed in parallel with the inclined surface of the measurement surface, the liquid 2 in the container 3 is inclined with respect to the measurement surface. It appears that the interface 9 is formed by moving downstream. Therefore, when the inclination detector 1 of the present invention changes the inclination of the liquid storage tank 4 as compared with the inclination detector configured without forming an interface in the container 3, The position of the center of gravity can be moved further to the downstream side in the tilt direction. When the movement of the center of gravity of the liquid storage tank 4 is large, the change in the fulcrum reaction force acting on the contact positions A and B of the liquid storage tank 4 increases, and the load applied to the support 5 that supports the liquid storage tank 4 also increases. It changes greatly, and it becomes easy to grasp the magnitude of the change in the load by detecting the load by the load detector 6. Thus, according to the inclination detector 1 of the present invention, even if the degree of inclination of the surface to be measured is very small, the load detector 6 can easily capture the change in the load applied to the support 5. Even if the inclination of the surface to be measured is very small, it can be detected with high sensitivity, the minimum inclination that can be detected can be made smaller, and the inclination of the surface to be measured can be detected with high accuracy. It becomes possible.

  In the inclination detector 1 of the present invention, the shape of the outer surface of the container 3 is not limited to the case where the outer surface side bottom surface of the container 3 is formed in a planar shape parallel to the interface 9 as shown in FIG. In the inclination detector 1, as shown in FIG. 2A, the outer surface shape of the container 3 may be formed with an inclined surface such that the bottom surface of the container 3 protrudes downward. In this case, the inclination detector 1 can be specifically configured with support means 7 that appropriately selects the shape of the support 5 according to the shape of the container 3. For example, as shown in FIG. 2 (A), if the support means 7 is formed by directly rigidly connecting a support body 5 having a pointed end and a flat plate-like support body 5, the pointed end is used. The formed support 5 is brought into contact with the inclined surface forming the bottom surface of the container 3, and the flat support 5 is brought into contact with the projecting edge of the container 3, whereby the liquid storage tank 4 is held by the support means 7. The inclination detector 1 can be configured by providing the load detector 6 on one of the supports 5 and further providing the inclination specifying means 8.

  In the inclination detector 1 of the present application, a support piece 10 may be provided on the outer surface of the container 3 outward from the container 3. In that case, the support piece 10 may be extended from the container 3 or may be manufactured separately from the container 3 and rigidly connected to a desired position of the container 3.

  The shape of the support piece 10 is not particularly limited. Moreover, if the support piece 10 is arrange | positioned outward from the outer surface of the container 3, an arrangement position will not be specifically limited. In the tilt detector 1, when the support 5 supports the liquid storage tank 4 with the support 10, the shape of the support 5 may be appropriately selected according to the shape and arrangement position of the support 10.

  For example, in the inclination detector 1, the container 3 is configured by providing plate-like support pieces 10 in the left-right direction (the left-right direction in FIG. 2) from the outer surface of the container 3 as shown in FIG. May be. In this case, the support means 7 is not limited to the case where the support 5 is brought into contact with the bottom surface of the container 3 to support the liquid storage tank 4, but the support 5 is brought into contact with the support piece 10 to support the liquid storage tank 4. It can be constituted as follows. Specifically, as the support means 7, a support body 5 formed with a pointed end is rigidly connected to an abutment 20, and the pointed end of one support body 5 is the lower surface side of the support piece 10 (FIG. 2 (FIG. The liquid storage tank 4 can be supported by bringing the tip of the other support body 5 into contact with the bottom surface of the container 3.

  Further, in the inclination detector 1, the container 3 may be configured by providing a plate-like thick support piece 10 below the center of the outer bottom surface of the container 3 as shown in FIG. . In this case, the support means 7 can be configured to support the liquid storage tank 4 by bringing the support 5 into contact with only the support piece 10.

  In addition, in the inclination detector 1, the support means 7 can select various types of abutments 20, so that the support 5 is rigidly connected to the plate-like abutment 20 as shown in FIG. The shape can be selected. For example, as shown in FIG. 2 (C), the support means 7 includes two support bodies 5 on the abutment 20 formed in an L-shaped cross section by increasing the thickness of a part of the plate-like body upward. 5, one support body 5 supports the liquid storage tank 4 upward from the lower end of the support piece 10 of the container 3, and the other support body 5 supports the support piece 10 left and right direction of the container 3 (plate The load detector 6 may be arranged on a support 5 that supports the liquid storage tank 4 in the left-right direction of the support piece 10. In that case, the inclination detector 1 can be configured to support the liquid storage tank 4 by bringing the support body 5 into contact with only the support piece 10, and the load detector 6 can move the left and right sides of the liquid storage tank 4. The load applied in the direction can be detected.

  In the inclination detector 1, when the support piece 10 is provided on the container 3, the support piece 10 may be formed by being provided with a through hole 11 that penetrates the support piece 10 (FIGS. 3 and 4). ). By providing the support piece 10 provided with such a through hole 11 in the container 3, it becomes easy to more strongly fix and support the liquid storage tank 4 and the support means 7.

  For example, as shown in FIGS. 3 and 4, in the inclination detector 1 of the present application, the support piece 10 of the container 3 is provided with a through hole 11 penetrating the support piece 10. In the inclination detector 1, at least one of the support portions 5 including the load detection body 6 is arranged to face the through hole 11 of the support piece 10, and a rod-like body 12 made of a rod-like rigid body passes through the through-hole 11. Arranged. The rod-shaped body 12 has one end side rigidly connected to the support body 5 and the other end side rigidly connected to the locking piece 13 as a portion formed with a larger diameter than the diameter of the through hole 11. At this time, the support body 5 rigidly connected to the rod-shaped body 12 is fixed relatively to the support piece 10, and the rod-shaped body 12 and the locking piece 13 attach the support body 5 to the support piece 10. The fixing member 14 to be fixed is formed. In particular, in the example of FIGS. 3 and 4, the fixing member 14 is provided at the tip of the support 5 to form a state in which the support 5 is fixed to the support piece 10.

  The support 5 provided with the fixing member 14 is in contact with the outer edge portion of the through-hole 11 of the support piece 10 (the boundary portion between the outer surface of the support piece 10 and the through-hole 11) to form the contact position C and the contact. The position is a support part and the liquid storage tank 4 is supported.

  When the inclination detector 1 is configured in this way, the support piece 10 contacts the two supports 5 and 5 to form the contact positions C and D to support the liquid storage tank 4 as well as the inclination detection. The locking piece 13 of the fixing member 14 provided on the support 5 according to the inclination of the vessel 1 contacts the support piece 10 to form a contact position E, and the locking piece 13 is connected to the support 5 via the rod-shaped body 12. Therefore, the liquid storage tank 4 can be supported by the two supports 5 and 5 of the support means 7 as well. As a result, the relative position at which the liquid storage tank 4 and the support means 7 come into contact with each other depending on the inclination of the inclination detector 1 regardless of the inclination direction of the inclination detector 1 is more likely to be displaced. It can be strongly suppressed.

  In this inclination detector 1, if the shape of the locking piece 13 is aligned with the shape of the support 5 as shown in FIGS. 3 and 4, the locking piece 13 contacts the support piece 10. Since the fulcrum reaction force is applied to the liquid storage tank 4 at the position E similarly to the support body 5, the function of the support body 5 can be exhibited.

  For example, when the inclination detector 1 is placed on a surface to be measured having an inclined surface having an inclination, the contact position C is located on the downstream side in the inclination direction of the surface to be measured, and on the upstream side in the inclination direction. When the contact position D is located (first case), the liquid storage tank 4 can be stationary while being balanced with the weight of the liquid storage tank 4 under the action of the fulcrum reaction force at the contact positions C and D.

  On the other hand, when the inclination detector 1 is placed with the inclination direction opposite to that in the first case, that is, the contact position C is located upstream of the measurement surface in the inclination direction, and the contact position is located downstream of the inclination direction. When D is located (second case), the liquid storage tank 4 can be stopped by receiving the action of the fulcrum reaction force at the contact positions E and D and balancing with its own weight.

  Further, in such an inclination detector 1, the load detector 6 is arranged such that the support piece 10 is positioned between the load detector 6 and the locking piece 13 of the fixing member 14, and the load detector 6, not only a load applied from the outside (that is, a load in a direction of pushing from the outside to the inside of the load detection body 6) but also a force capable of measuring a force pulled outward from the load detection body 6 is used. Not only when the support 5 supports the liquid storage tank 4 at the contact position C (first case), but also when the support section 5 supports the liquid storage tank 4 at the contact position E (second case). However, it can be reliably detected (FIG. 3).

  In the inclination detector 1 of the present invention, as shown in FIGS. 4 and 5, when the support piece 10 and the support 5 are in contact, the support piece 10 has a groove 19 according to the shape of the support 5. It may be formed. For example, when the support 5 is formed in a wedge shape having a pointed end, the support piece 10 has a groove 19 having a depth slightly wider than the angle of the pointed end of the support 5 and covering the pointed portion. The support portion 5 may be in contact with the groove 19 of the support piece 10. In this case, even if the inclination degree of the inclination detector 1 is changed, it is preferable that the liquid storage tank 4 can be suppressed from moving toward the downstream side in the inclination direction of the inclination detector 1 relative to the support portion 5.

  In the inclination detector 1, the case where the shape of the inner surface of the container 3 is a shape formed from a bottom surface parallel to the interface 9 and a wall surface standing above the peripheral position of the bottom surface has been described. The shape of the inner surface is not limited to this.

  In particular, in the inclination detector 1 of the present invention, the shape of the inner surface of the container 3 is formed with an inclined surface that rises outward from a predetermined portion of the inner surface of the inner surface of the container 3. The shape is preferred. More specifically, as shown in the example of FIG. 4, the container 3 is formed in an inverted mountain shape with a cross section in the vertical direction parallel to the inclination direction of the liquid storage tank 4 as the shape of the inner surface thereof. Can be mentioned. By configuring the inner surface shape of the container 3 in this manner, the inclination of the liquid storage tank 4 is higher than that of the liquid storage tank 4 using the container 3 having a bottom surface and a wall surface as shown in FIGS. In addition to increasing the movement of the center of gravity when the angle is changed, the weight of the container 3 and the volume of the liquid 2 stored in the container 3 can be reduced (FIG. 4). FIG. 4 is a view showing the inclination detector 1 when the inner surface of the container 3 is formed in an inverted mountain shape.

  In addition, the inclination detector 1 of the example of FIG. 4 has the support piece 10 which provided the through-hole 11 in the left-right direction at the lower end of the container 3 and the inverted mountain shape of the container 3, and provided the groove | channel 19 in the lower end. Two support bodies 5 and 5 are rigidly connected to the liquid storage tank 4 and the abutment 20 formed in a L-shaped cross section by increasing the thickness of a part of the plate-like body upward. The support means 7 and the inclination specifying means 8 are provided. One of the supports 5 supports the liquid storage tank 4 by contacting the groove 19 upward from the lower end of the support piece 10, and the other of the supports 5 In addition, the liquid storage tank 4 is supported in the left-right direction by contacting the through-hole 11 with the fixing member 14, and the load detector 6 is provided.

  In the inclination detector 1 of the present invention, one or a plurality of containers 3 of the liquid storage tank 4 may be provided. Further, in the case where a plurality of containers 3 are provided, the liquid storage tank 4 may be configured such that the containers 3 are communicated with each other by a connecting pipe 15 and the liquid inside can be moved as shown in FIG. . When the liquid storage unit 4 has a configuration in which the container 3 is connected by the connecting pipe 15, the inclination of the liquid storage tank 4 is changed as compared with the case where the liquid storage tank 4 has a configuration in which one container 3 is provided. The movement of the gravity center position of the accompanying liquid storage tank 4 can be increased. Furthermore, in the case where the liquid storage unit 4 includes a plurality of containers 3 and includes a configuration in which the containers 3 are connected by the connecting pipe 15, the liquid storage tank 4 can be moved more greatly because the center of gravity of the liquid storage tank 4 can be moved further. It is more preferable that the dimensions of the containers 3 and the volumes capable of storing the liquid are different from each other among the plurality of containers 3 constituting 4 (FIG. 5).

  In the inclination detector 1 of the present invention, the support means 7 may be mounted on a pedestal (not shown) that can be placed on the surface to be measured. In this case, the support means 7 of the inclination detector 1 is rigidly connected to the pedestal. Such an inclination detector 1 is more stable and can detect the inclination of the surface to be measured more reliably. In addition, even if there is a depression or chipping on a part of the surface to be measured, the effect of the depression or chipping can be selected by selecting a pedestal that can block the depression or chipping. It becomes easier to measure the inclination of the surface to be measured without being subjected to the above.

  In addition, the inclination detector 1 may be configured by providing not only the support means 7 but also the inclination specifying means 8 on the pedestal.

  The pedestal is made of a material that is hard enough to support the inclination detector 1 at least when the inclination detector 1 is placed on the surface to be measured for inclination, for example, plastic such as polycarbonate, metal, wood, etc. Etc. are formed. The shape of the pedestal is not particularly limited, and a flat plate shape, a lattice shape, a ladder shape, a shape in which a plurality of columnar members are arranged in parallel, and a flat plate is fixed to the upper end of an upright columnar member. The shape to be formed can be selected as appropriate.

(A) It is a schematic sectional drawing which shows one of the inclination detectors in this invention. (B) It is a schematic cross-sectional view showing one of the inclination detectors in the present invention and a vertical cross-sectional view parallel to the direction in which the inclination of the surface to be measured is to be measured. It is a figure for demonstrating the change of the fulcrum reaction force accompanying a movement, and the change of the load provided to a support part. (A) It is a schematic sectional drawing which shows one of the inclination detectors in this invention. (B) It is a schematic sectional drawing which shows one of the examples which formed the support piece in the inclination detector of this invention. (C) It is a schematic sectional drawing which shows one of the examples which formed the support piece in the inclination detector of this invention. It is a schematic sectional drawing which shows one of the examples which formed the support piece which has a through-hole in the inclination detector of this invention. It is a schematic sectional drawing which shows one of the other examples in the inclination detector of this invention. It is a schematic sectional drawing which shows one of the other examples in the inclination detector of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inclination detector 2 Liquid 3 Container 4 Liquid storage tank 5 Support part 6 Load detection body 7 Support means 8 Inclination specific means 9 Interface 10 Support piece

Claims (1)

An inclination detector that is arranged on a measurement surface to be measured for inclination and detects the inclination of the measurement surface,
A liquid storage tank comprising a container storing liquid and forming an interface with the liquid inside the container, and a plurality of support portions that contact the outer surface of the liquid storage tank and support the liquid storage tank A support means formed by directly or indirectly rigidly supporting the support,
The container forms an inclined surface on the inner surface of the container that rises outward from a predetermined portion of the inner surface,
The container is provided with a support piece on the outer bottom surface of the container, and the support piece extends downward,
A through-hole penetrating the support piece is provided in the support piece of the container, and a rod-shaped body made of a rigid body is disposed through the through-hole,
The support means is provided with a load detection body that detects a load applied to the support portion on a support body that forms at least one of the support portions,
The rod-shaped body is rigidly coupled with at least one support body provided with a load detector on one end side, and has a diameter larger than the diameter of the through hole on the other end side of the rod-shaped body. It has a rigid piece,
A support body that is at least one of the support bodies on which the load detectors are disposed and is rigidly connected to one end of the rod-shaped body contacts the support piece of the container in the left-right direction, and the support piece of the container in the left-right direction. One support body different from the support body in contact is in contact with the lower end of the support piece to form a support portion.
Tilting the specific means for determining the support pieces in lateral direction are arranged on a support which contacts the inclination of the measurement surface based on the detected load at the load detecting body of the container is provided, characterized in that Tilt detector.

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