JP6623732B2 - Explosive loading machine - Google Patents

Description

  The present invention relates to an explosive loading machine having an explosive charging port.

  2. Description of the Related Art Generally, an explosive loading machine is used as a method for loading an explosive (herein, explosive indicates "explosive or explosive and inclusion") into a charge hole perforated on a face such as a bedrock. Then, a method of loading an explosive is known. The explosive loading machine is connected to the explosive loading means, sends the explosive sent from the explosive loading port into the explosive loading machine to the loading hose connected to the explosive loading port of the explosive loading machine, and sends the explosive into the charging hole. Load it.

  Conventionally, as an explosive loading machine, for example, an explosive loading machine described in Patent Document 1 is known. In such an explosive loading machine, an explosive loading port for sending an explosive into the explosive loading machine has a loading valve as a lid for opening and closing the explosive loading port and a connecting means such as a rotating shaft for supporting the same. It is attached inside the housing that constitutes the main body. When charging an explosive into the explosive loader, the injection valve is pushed inside the explosive loader and opens, and after injection, the injection valve is configured to return to its original position and close with the spring force of the spring mounted on the rotating shaft Have been.

JP 2006-266670 A

  However, since the opening / closing movable closing valve and a connecting means such as a rotating shaft for supporting the closing valve are mounted inside the housing, there is a problem that those closing valves cannot be easily visually checked. Was. Therefore, cleaning and maintenance of the input valve and the like may be hindered.

  Accordingly, it is an object of the present invention to provide an explosive loading machine capable of easily confirming a lid for opening and closing an explosive charging port.

In order to achieve the above object, the present invention is an explosive loading machine having a cylindrical explosive loading machine main body and a lid, wherein the cylindrical explosive loading machine main body has an explosive charging port at one end. A gas-liquid explosive discharge port at the other end, and a gas-liquid inlet port on the side surface, and the explosive loader main body and the lid are provided with a support for connecting the explosive loader main body and the lid. An axis is attached so as to be substantially parallel to the axis of the explosive loading device main body, and at least one of the explosive loading device main body and the lid is provided with a support hole substantially parallel to the axis of the explosive loading device main body. The support shaft is inserted through the support hole, and the lid is configured to be capable of rotating and opening an explosive charging port around the support shaft, and the explosive loading machine main body and the lid are provided with the lid. At the position where the body closes the explosive charging port, an explosive loading machine main body side engaging portion engaging with each other A body-side engaging portion is provided, and at least one of the explosive-loading-unit main body-side engaging portion and the lid-side engaging portion is provided with an inclined portion with respect to a direction in which the lid rotates. When the is closed and rotated, the explosive loading machine body side engaging portion and the lid side engaging portion are configured such that the lid slides against the explosive charging port in the close contact direction by the inclined portion , At the closed position of the lid, the lid and the end of the explosive loading unit main body on the side of the explosive loading port are arranged between the lid and the end of the explosive loading unit main body on the side of the explosive loading unit. The gist is that a packing is arranged on either one of them.

Before Symbol support shaft may be retained through at least one of said support hole and the elastic member.

  One of the explosive loading machine main body side engaging portion and the lid side engaging portion is an engaging pin having the inclined portion, and the other is an engaging hole having substantially the same opening shape as a vertical cross section of the engaging pin. There may be. Further, a body mounting part for mounting the explosive loading machine on a body may be provided.

  ADVANTAGE OF THE INVENTION According to this invention, the lid etc. which open and close an explosive charging port can be easily confirmed.

FIG. 2 is a front view of the explosive loading machine when the lid according to the first embodiment is opened at 90 °. FIG. 4 is a side view of the explosive loading machine as viewed from the front left side when the lid of the first embodiment is opened at 90 °. The rear view of the explosive loading machine when the cover of the first embodiment is opened at 90 °. FIG. 2 is a plan view of the explosive loading machine when the lid according to the first embodiment is opened at 90 °. (A) Partial front view when the lid of the explosive loading machine of the first embodiment is closed. (B) Partial front view with the lid closed. The top view of the explosive loading machine when the lid of the second embodiment is opened at 90 °. (A) AA sectional drawing of FIG. (B) BB sectional drawing of FIG. The rear view of the explosive loading machine when a lid of a 3rd embodiment opens 90 degrees. (A) A side view when viewed from the front left side when a lid of the explosive loading machine of the third embodiment is closed. (B) A side view when viewed from the front left side with the lid closed. The front view of the explosive loading machine when a lid of a 4th embodiment opens 90 degrees. (A) Partial side view when seen from the front left side when the lid of the explosive loading machine of the fourth embodiment is closed. (B) Partial front view when the lid is closed. (A) Partial side view when the lid of the explosive loading machine of the fourth embodiment is viewed from the front left side with the lid closed. (B) Partial front view with the lid closed. The front view of an explosive loading machine when a lid of a 5th embodiment opens 90 degrees. The front view of the explosive loading machine when a lid opens at 180 degrees in a body wearing state of a 5th embodiment.

(1st Embodiment)
Hereinafter, a first embodiment of an explosive loading machine according to the present invention will be described with reference to FIGS.
As shown in FIG. 1, the explosive loading machine main body 11 of the explosive loading machine 10 is formed in a cylindrical shape, a passage 11a is formed in an inner peripheral surface, and an explosive charging port 11b communicates with the passage 11a at one open end. A gas-liquid explosive discharge port 11c is provided at the other open end. A cylindrical gas-liquid introduction pipe 12 is connected to an outer peripheral side surface of the explosive loading machine main body 11. The gas-liquid introduction pipe 12 has a gas-liquid introduction port 12a formed at an open end thereof, and a passage 12b communicating with the passage 11a of the explosive loading machine main body 11 formed on an inner peripheral surface thereof. That is, the explosive loading machine main body 11 has an explosive charging port 11b at one end, a gas-liquid explosive discharging port 11c at the other end, and a gas-liquid introducing port 12a on the side surface.

  As shown in FIGS. 2 to 4, the end shape of the explosive loading port 11 b side is provided on the explosive loading port 11 b side of the explosive loading machine main body 11 via a support shaft 13 supported by the explosive loading machine main body 11. Lids 14 having substantially the same planar shape are connected. That is, the explosive loading machine 10 includes the explosive loading machine main body 11 and the lid 14. The lid 14 is formed in a columnar shape having a predetermined thickness that can withstand the internal pressure. On the outer peripheral surface of the explosive loading machine main body 11, near the end of the explosive loading port 11b, a explosive loading machine main body-side support portion 15 that supports the support shaft 13 is provided integrally with the explosive loading machine main body 11. . The support shaft 13 is inserted into the explosive loading machine main body side support hole 15a formed in the explosive loading machine main body side support portion 15 in a direction substantially parallel to the axial direction of the cylindrical portion constituting the explosive charging port 11b. , Attached to the explosive loading machine main body 11 side.

  As shown in FIGS. 3 and 4, a lid-side support portion 16 that supports the support shaft 13 is integrally provided on the outer peripheral surface of the lid 14. The support shaft 13 is attached to the cover 14 side by being inserted into a cover-side support hole 16 a formed substantially parallel to the axial direction of the cover 14 in the cover-side support portion 16. The lid 14 is attached so that the explosive charging port 11b can be opened and closed about the support shaft 13. The support shaft 13 is disposed substantially in parallel with the axial direction of the cylindrical portion that constitutes the explosive charging port 11b by being inserted into the explosive loading machine main body side support hole 15a and the lid side support hole 16a.

  The upper end and the lower end of the support shaft 13 inserted into the explosive loading machine main body side support hole 15a and the lid side support hole 16a are prevented from coming off by bolt heads or nut structures, respectively. In the explosive loading machine 10 of the present embodiment, the lower end of the support shaft 13 is prevented from coming off by the nut 17, and the upper end is prevented from coming off by the head 13 a of the bolt constituting the support shaft 13. A washer 18 is disposed between the explosive loading machine main body side support portion 15 and the lid side support portion 16.

  As shown in FIGS. 1 and 4, a square is formed on the outer peripheral surface of the explosive loading machine main body 11 on the opposite side with respect to the center axis of the cylindrical portion constituting the explosive loading port 11 b of the explosive loading machine main body side support portion 15. A pillar-shaped explosive loader main body side engaging support portion 19 is integrally formed along the longitudinal direction of the explosive loader main body 11. An explosive loading machine main body side engaging portion 20 is attached to the front left side of the explosive loading machine main body 11 of the explosive loading machine main body engaging support portion 19. The explosive loading machine main body side engaging portion 20 is formed in a plate shape, and a linear portion 20a extending substantially in the direction in which the lid 14 rotates, that is, substantially parallel to the circumferential surface direction of the explosive loading device main body 11, and the linear portion 20a. 20a, and an inclined portion 20b having an inclined surface that is curved and inclined upward with respect to the direction in which the lid 14 rotates.

  As shown in FIGS. 1 and 4, a lid-side engaging support 21 is attached to the outer peripheral surface of the lid 14 opposite to the center axis of the lid 14 of the lid-side support 16. . The lid-side engagement support portion 21 is formed in a long plate shape that hangs downward from the lower end of the lid 14. At the lower end of the lid-side engaging support portion 21, a plate-shaped lid-side engaging portion 22 extending in the direction perpendicular to the axis of the lid 14 is connected. As shown in FIG. 5A, when the lid 14 is closed, the lid-side engaging portion 22 and the explosive loading machine main body-side engaging portion 20 are positioned at a height from a plane orbit on which the lid 14 rotates. , The upper surface end 22a on the front right side of the lid side engaging portion 22 and the lower surface of the inclined portion 20b of the explosive loading device main body side engaging portion 20 are arranged at the same height position. As shown in FIG. 5A, when the lid 14 is closed, the lower surface of the linear portion 20 a of the explosive loading device main body side engaging portion 20 is positioned lower than the upper surface of the lid side engaging portion 22. ing.

  A cylindrical grip 23 is attached to the upper surface of the lid 14 in the vicinity of the lid-side engagement support 21 via a cylindrical fixed shaft 24 fixed to the upper surface of the lid 14. The grip 23 is attached to be rotatable about the axis of the fixed shaft 24 as a central axis.

The operation of the explosive loading machine 10 according to the first embodiment will be described.
In the explosive loading machine 10 of the first embodiment, control means for extruding a gas-liquid mixture to the gas-liquid introduction pipe 12 at the time of use is connected via a connecting hose, and is mounted so that the gas-liquid mixture is introduced. The gas-liquid explosive discharge port 11c is connected via a socket to a loading hose that connects the loading pipe during use.

  At the explosive charging port 11b, the explosive is charged in a state in which the lid 14 is opened to an angle which does not block the explosive charging port 11b about the support shaft 13 as a center axis. After closing the explosive charge 11b with the lid 14, the direction in which the explosive charge opening 11b is closed around the support shaft 13 while holding the grip portion 23, for example, in FIG. The explosive charging port 11b is rotated from the front left side with respect to the loading machine body 11 in a direction in which the explosive charging port 11b is closed.

  As shown in FIG. 5A, immediately before the lid 14 pivotally closes the explosive charging port 11b, the lid side engaging portion 22 and the explosive loading machine main body side engaging portion 20 abut. The contact between the lid side engaging portion 22 and the explosive loading machine main body side engaging portion 20 is performed first by the upper surface end portion 22a of the lid side engaging portion 22 and the inclined portion 20b of the explosive loading machine main body side engaging portion 20. The lower surface contacts. Further, when the lid 14 is rotated in the closing direction, the upper surface end 22a of the lid-side engaging portion 22 slides while abutting along the lower surface of the inclined portion 20b of the explosive loading machine main body-side engaging portion 20. . Thereby, the lid 14 moves in the axial direction of the cylindrical portion forming the explosive charging port 11b in a direction in which the lid 14 comes into close contact with the cylindrical end portion forming the explosive charging port 11b. At the same time, the lid 14 is pressed in a direction in which the lid 14 comes into close contact with the cylindrical end of the explosive charging port 11b.

  As shown in FIG. 5B, at a position where the lid 14 closes the explosive charging port 11b, the lid 14 is pressed in a direction in which the lid 14 is in close contact with a cylindrical end portion constituting the explosive charging port 11b. The upper surface of the lid side engaging portion 22 is in contact with the lower surface of the linear portion 20a of the explosive loading machine main body side engaging portion 20. Thereby, friction occurs between the upper surface of the lid side engaging portion 22 and the lower surface of the linear portion 20a of the explosive loading machine main body side engaging portion 20, and the movement of the lid 14 in the opening direction is restricted. Further, the lid 14 is also restricted from moving in the axial direction of the cylindrical portion constituting the explosive charging port 11b, and the closed state of the lid 14 is maintained. In use, the mixed gas-liquid is introduced from the gas-liquid introduction port 12a, is discharged from the gas-liquid explosive discharge port 11c, and pressure-feeds the previously charged explosive toward the loading pipe. The closed lid 14 can be opened by performing the operation reverse to the above.

According to the explosive loading machine 10 of the present embodiment, the following effects can be obtained.
(1) In the present embodiment, the explosive is charged from the explosive charging port 11b by the support shaft 13 disposed substantially parallel to the axial direction of the cylindrical portion forming the explosive charging port 11b. This operation is performed by rotating and opening and closing the connected lid 14. Therefore, the connecting means such as the cover 14 for opening and closing the explosive charging port 11b or the support shaft 13 for rotatably supporting the cover 14 can be easily confirmed from the outside. Thereby, cleaning, maintenance, repair, and the like of those components can be easily performed.

  (2) In the present embodiment, the lid 14 is pressed in a direction in which the lid 14 is in close contact with the cylindrical end of the explosive charging port 11b, and the upper surface of the lid side engaging portion 22 and the explosive loading machine main body side. The explosive charging port 11b is closed with the lower surface of the linear portion 20a of the engaging portion 20 in contact with the explosive charging port 11b. Accordingly, the lid 14 is restricted from moving in the axial direction of the cylindrical portion constituting the explosive charging port 11b, and the closed state of the lid 14 is maintained. For example, since the hinge structure eliminates the need for a lock structure required for the opening / closing lid that opens and closes the lid, the lid 14 can be easily opened and closed.

  (3) Further, at the time of closing, friction occurs between the upper surface of the lid side engaging portion 22 and the lower surface of the linear portion 20a of the explosive loading machine main body side engaging portion 20, and the explosive charging port 11b of the lid 14 is closed. Rotation in the circumferential direction is suppressed. Accordingly, there is no need to newly provide a lock structure for restricting the movement of the explosive charging port 11b in the circumferential direction of the lid 14, and a structure for maintaining the closed state of the lid 14 can be simplified, and the opening and closing can be performed. The operation can be easily performed.

  (4) In the present embodiment, the opening and closing operation of the lid 14 is performed by grasping the grasping portion 23 and rotating in the direction perpendicular to the axis of the cylindrical portion constituting the explosive charging port 11b. Therefore, the opening and closing operation can be performed with one hand, and the opening and closing operation of the lid 14 can be performed more easily.

The above embodiment may be modified as follows.
-The material which comprises the explosive loading machine 10 of the said embodiment is not specifically limited, Considering intensity | strength, pressure resistance, weight, etc., it can select suitably from well-known materials, for example, metal, synthetic resin, etc.
-The shape of the explosive loading machine main body 11 may be a cylindrical shape such as a polygonal cross section other than the cylindrical shape.
When the explosive charging port 11b is closed by the lid 14, the contact portion between the lid 14 and the opening end surface forming the explosive charging port 11b is configured to have pressure resistance, waterproofness, or airtightness. If so, the configuration of the contact portion is not particularly limited.
The support shaft 13 of the above embodiment is configured to be inserted and supported in the explosive loading machine main body side support hole 15a formed in the explosive loading machine main body side support portion 15 on the outer peripheral surface of the explosive loading machine main body 11. However, the explosive loading machine main body side support hole 15a may be provided by forming a hole in the opening end surface constituting the explosive charging port 11b, and the explosive loading machine main body side supporting portion is provided on the inner peripheral surface side of the explosive charging port 11b. And may be formed in such a portion. Even in such a configuration, the lid 14 that opens and closes the explosive charging port 11b or the connecting means such as the support shaft 13 that rotatably supports the lid 14 can be confirmed from the outside.
The support shaft 13 of the above embodiment is configured to be inserted into and supported by a cover-side support hole 16 a formed on the outer peripheral surface of the cover 14. However, the lid-side support hole 16a may be formed inside the outer peripheral surface of the lid 14. Even in such a configuration, the lid 14 for opening and closing the explosive charging port 11b or the connecting means such as the support shaft 13 for rotatably supporting the lid 14 can be confirmed from the outside.
-The support shaft 13 of the above embodiment is supported by the explosive loading machine main body side support hole 15a and the lid side support hole 16a. The shape of the inner peripheral surface of each support hole is not particularly limited as long as the support shaft 13 can be supported, and for example, a notch such as a slit may be formed.
In the explosive loading machine main body side engaging support portion 19 of the above embodiment, the explosive loading machine main body side engaging portion 20 having the inclined portion 20b is provided. However, the inclined portion may be provided on the lid-side engagement support portion 21 side. Even with this configuration, when the lid 14 is rotated and closed, the lid 14 is brought into close contact with the explosive charging port 11b of the explosive loading machine main body 11 by the explosive loading unit main body side engaging portion 20 and the lid side engaging portion 22. Can be brought into contact with the slide while being pressed.
The shape of the inclined portion 20b of the above embodiment is particularly connected to the linear portion 20a, and if the inclined portion 20b includes the inclined structure that comes into contact with the upper end portion 22a of the lid-side engaging portion 22 when the lid 14 is closed. The shape is not limited and may be not only a shape including a curved surface but also a shape including a flat surface.
In the above-described embodiment, the opening and closing operation of the lid 14 may be configured to rotate to the left or right from the front side of the explosive loading machine 10.
-The length of the linear portion 20a constituting the explosive loading machine main body side engaging portion 20 of the above embodiment is not particularly limited. The closure of the lid 14 due to friction between the upper surface of the lid side engaging portion 22 and the lower surface of the linear portion 20a of the explosive loading machine main body side engaging portion 20, and the lid 14 constitutes the explosive charging port 11b. It is set as appropriate from the viewpoint of operability and the like for closing the slide in a state of being urged in a direction in which it comes into close contact with the cylindrical end.

(Second embodiment)
As shown in FIG. 6, the explosive loading machine 10 of the second embodiment has a structure in which a packing is attached to the opening end surface 11 d on the explosive charging port 11 b side in addition to the configuration of the first embodiment. The packing refers to a member used for the purpose of air-tight or liquid-tight at a joint of a pipe or the like. Examples of the material forming the packing include rubber, synthetic resin, and metal. Examples of the metal include stainless steel, aluminum, copper, and lead. Specific examples of the packing include an O-ring, a sheet gasket, and a lip packing. Examples of the sheet gasket include a rubber sheet, a fluororesin sheet, and a metal gasket. Examples of the lip packing include U packing, V packing, and L packing. Of these, rubber O-rings are preferable from the viewpoint of sealing performance and availability. In the explosive loading machine 10 of the second embodiment shown in FIG. 6, a rubber O-ring 25 is shown. The O-ring 25 is provided so as to be located between the lid 14 and the opening end face 11d at the closed position of the lid 14.

  As shown in FIG. 7B, the O-ring 25 is arranged by being fitted into a dovetail groove 11e formed on the opening end face 11d on the side of the explosive charging port 11b. The O-ring 25 fitted in the dovetail groove 11e has an upper end portion protruding from the dovetail groove 11e toward the lid 14 side. As shown in FIG. 7A, also on the lower surface 14 a of the lid 14, a groove 14 b having an arc-shaped cross section is formed in a circular shape so as to correspond to the planar shape of the O-ring 25. When the lid 14 closes the explosive charging port 11b, the outer peripheral surface of the upper end of the O-ring 25 protruding from the dovetail groove 11e toward the lid 14 abuts along the inner surface of the groove 14b of the lid 14.

According to the explosive loading machine 10 of the second embodiment, the following effects can be obtained in addition to the effects of the first embodiment.
(5) In the present embodiment, the O-ring 25 is attached to the opening end face 11d on the explosive charging port 11b side. Therefore, when the lid 14 closes the explosive charging port 11b, the pressure resistance, waterproofness, or airtightness between the lid 14 and the opening end face 11d of the explosive charging port 11b can be further improved.

  (6) In the present embodiment, the O-ring 25 is fitted into the dovetail groove 11e formed on the opening end face 11d. Therefore, the O-ring 25 can be more reliably attached to the opening end face 11d.

  (7) In the present embodiment, a circular groove 14b having an arc-shaped cross section is formed on the lower surface 14a of the lid 14 between the lower end 14a and the opening end surface 11d so as to correspond to the planar shape of the O-ring 25. Therefore, when the lid 14 closes the explosive charging port 11b, the outer peripheral surface of the upper end of the O-ring 25 protruding from the dovetail groove 11e toward the lid 14 abuts along the inner surface of the groove 14b of the lid 14. Therefore, by increasing the contact area with the O-ring 25, the pressure resistance, waterproofness, or airtightness between the lid 14 and the opening end surface 11d of the explosive charging port 11b can be further improved.

The above embodiment may be modified as follows.
-In the said embodiment, the O-ring 25 may be arrange | positioned at the cover 14 side. Also in such a configuration, the pressure resistance, waterproofness, or airtightness between the lid 14 and the opening end surface 11d of the explosive charging port 11b can be further improved.

(Third embodiment)
As shown in FIG. 8, as the explosive loading machine 10 of the third embodiment, in addition to the configuration of the second embodiment, an explosive loading machine main body side support hole 15 a is formed at the lower end of the support shaft 13. An elastic member was inserted and interposed between the explosive loading machine main body side support portion 15 and the nut 17. An elastic member refers to a member that has the property of generating a force that attempts to eliminate deformation (strain) of an object that has been modified by an external force. Examples of the elastic member include a rubber tube, a spring, and a spring washer. Among these, a rubber tube is preferable from the viewpoint of imparting an appropriate urging force and availability. The configuration of the rubber tube 27 is shown in the explosive loading machine 10 of the third embodiment in FIG. A washer 29 is provided between the rubber tube 27 and the nut 17.

Next, the operation of the explosive loading machine 10 of the third embodiment will be described.
Since the rubber tube 27 is inserted between the nut 17 and the explosive-loading-machine-side support portion 15 in which the explosive-loading-machine-side supporting hole 15a is formed, the support shaft 13 has a width of contraction of the rubber tube 27. It can move in the axial direction within the range. When the support shaft 13 moves upward (to the lid 14 side) with respect to the axis, the rubber tube 27 is pressed upward from below by the nut 17 and contracts. Thereby, the support shaft 13 is provided with a biasing force in the downward direction of the axis.

  As shown in FIG. 9A, in a configuration in which the O-ring 25 protrudes from the opening end surface 11 d on the explosive charging port 11 b side to the lid 14 side, when the lid 14 is rotated and closed, the lid side engagement is performed. The lower surface 14a of the lid 14 is slightly separated from the open end surface 11d on the joint portion 22 and on the side of the explosive loading machine main body side engaging portion 20. As shown in FIG. 9 (b), at the position where the lid 14 closes the explosive charging port 11b, the upper surface of the lid side engaging portion 22 and the lower surface of the linear portion 20a of the explosive loading machine main body side engaging portion 20 are closed. Due to the contact, the lid 14 is pressed in a direction in which it comes into close contact with the cylindrical end of the explosive charging port 11b, particularly on the side of the lid side engaging portion 22 and the explosive loading machine main body side engaging portion 20 side. . On the support shaft 13 side, when the lid 14 is closed, the support shaft 13 is pushed upward by the repulsive force of the O-ring 25 via the head portion 13a of the bolt. As a result, the nut 17 contracts the rubber tube 27, and an urging force is applied to the support shaft 13 in a direction below the axis. Also on the support shaft 13 side, the lid 14 is urged through a bolt head 13a in a direction in which it comes into close contact with the cylindrical end part of the explosive charge inlet 11b.

According to the explosive loading machine 10 of the third embodiment, the following effects can be obtained in addition to the effects of the first and second embodiments.
(8) In the present embodiment, the support shaft 13 connecting the lid 14 and the explosive loading machine main body 11 can move in the axial direction within the range of the contraction width of the rubber tube 27. Therefore, the operability when opening and closing the lid 14 can be improved. In particular, even when the O-ring 25 protrudes from the opening end face 11d on the explosive charging port 11b side toward the lid 14, the operability of opening and closing the lid 14 can be improved.

  (9) When the lid 14 is closed, the support shaft 13 is pushed upward through the head 13a of the bolt by the repulsive force of pushing up the lid 14 of the O-ring 25. Thereby, the nut 17 is configured to contract the rubber tube 27. Accordingly, the support shaft 13 is provided with an urging force in the downward direction of the axis, and the sealing property of the lid 14 on the support shaft 13 side can be further strengthened. With the configuration of the rubber tube 27 described above, it is possible to achieve both improvement in the operability of rotating and opening and closing the lid 14 and improvement in the sealing between the lid 14 and the opening end surface 11d.

The above embodiment may be modified as follows.
-In the said embodiment, you may comprise so that the rubber tube as an elastic member may be interposed between the cover body side support part 16 and the head part 13a of a bolt. Also in such a configuration, it is possible to achieve both improvement of the operability of the rotation and opening / closing of the lid 14 and improvement of the sealing between the lid 14 and the opening end surface 11d.

(Fourth embodiment)
As shown in the first embodiment, the explosive loading machine main body side engaging portion 20 and the lid body side engaging portion 22 are formed in a plate shape. However, the shape of the explosive loading machine main body side engaging portion 20 and the lid body side engaging portion 22 is such that when the lid 14 is rotated and closed, the explosive loading machine main body side engaging portion 20 and the lid body side engaging portion 22 are There is no particular limitation as long as the lid 14 is configured to slide against the cylindrical end of the explosive loading port 11b of the explosive loading machine main body 11 while pressing in the contact direction. As another shape, a shape comprising an engaging pin and an engaging hole is shown as the explosive loading machine 10 of the fourth embodiment.

  As shown in FIGS. 10 and 11 (a), in the explosive loading machine 10 of the fourth embodiment, the engaging pin 31 as the explosive loading machine main body side engaging portion has the explosive loading machine main body side engaging support portion. It is attached to the 19 sides. The engagement pin 31 is formed in a rod shape, and is connected to the columnar linear portion 31a extending in a direction in which the lid 14 rotates, that is, substantially parallel to the circumferential surface direction of the explosive loading machine main body 11, and the linear portion 31a. And a tapered (tapered) tip portion 31b. The lower surface side of the tip portion 31b is configured as an inclined portion 31c including a peripheral surface portion inclined upward with respect to the direction in which the lid 14 rotates.

  As shown in FIGS. 10 and 11B, the lid-side engagement support portion 32 is formed in a quadrangular prism shape that hangs downward from the lower end of the lid 14. An engagement hole 32a as a lid-side engagement portion is formed below the lid-side engagement support portion 32. The engagement hole 32a is configured so that the shape of the opening hole is substantially the same as the vertical cross section in the axial direction of the linear portion 31a to the extent that the linear portion 31a can be inserted. When the lid 14 is closed, at the position where the engagement pin 31 abuts against the engagement hole 32a, at the height from the plane orbit where the lid 14 rotates, the lower end of the front right opening of the engagement hole 32a The vicinity of 32b and the lower surface of the inclined portion 31c of the engagement pin 31 are configured to be at the same height position. That is, as shown in FIGS. 11A and 11B, when the lid 14 is closed, the center axis of the engagement pin 31 is positioned at the position where the engagement pin 31 and the engagement hole 32 a contact each other. The center axis of the engagement hole 32a does not coincide with the center axis of the engagement hole 32a at the height position from the plane orbit on which the lid 14 rotates, and is displaced downward within the range of the width of the engagement hole 32a. As shown in FIG. 11B, when the lid 14 is closed, the bottom side of the linear portion 31a of the engagement pin 31 is located below the engagement hole 32a.

The operation of the explosive loading machine 10 of the fourth embodiment will be described.
As shown in FIGS. 11A and 11B, immediately before the lid 14 pivotally closes the explosive charging port 11b, the engaging hole 32a and the engaging pin 31 abut. At the time of contact between the engagement hole 32a and the engagement pin 31, first, the vicinity of the lower end 32b of the engagement hole 32a and the inclined portion 31c of the engagement pin 31 contact. Further, when the cover 14 is rotated in the closing direction, the vicinity of the lower end 32b of the engagement hole 32a slides while abutting along the lower surface of the inclined portion 31c of the engagement pin 31. Thereby, the lid 14 moves in the axial direction of the cylindrical portion forming the explosive charging port 11b in a direction in which the lid 14 comes into close contact with the cylindrical end portion forming the explosive charging port 11b. At the same time, the lid 14 is pressed in a direction in which the lid 14 comes into close contact with the cylindrical end of the explosive charging port 11b.

  As shown in FIGS. 12 (a) and 12 (b), at a position where the lid 14 closes the explosive charging port 11b, the lid 14 is pressed in a direction in which the lid 14 comes into close contact with the cylindrical end portion constituting the explosive charging port 11b. In this state, the inner peripheral surface of the engaging hole 32a and the outer peripheral surface of the linear portion 31a of the engaging pin 31, particularly the bottom of the linear portion 31a, are in contact with each other.

  As shown in FIG. 12 (b), when the closed lid 14 is opened, the explosive loading machine main body side engaging support 19 and the lid side engaging support 32 are not in contact with each other. The lid 14 is opened by grasping the upper end portion of the engagement support portion 32 and the lower end portion of the explosive loading machine main body side engagement support portion 19 and simultaneously pressing them in the opening direction.

According to the explosive loading machine 10 of the fourth embodiment, the following effects can be obtained in addition to the effects of the above-described embodiment.
(10) In this embodiment, when the lid 14 is closed, the inner peripheral surface of the engagement hole 32a and the outer peripheral surface of the linear portion 31a of the engagement pin 31 are in sliding contact. Therefore, the contact area (friction) increases, and the closed state can be maintained more reliably.

  (11) In the present embodiment, the linear portion 31a of the engagement pin 31 is formed in a columnar shape, and the lid-side engagement support portion 32 in which the engagement hole 32a is formed is formed in a quadrangular prism shape. Therefore, the rigidity at the engagement portion between the explosive loading machine main body side and the lid side can be improved, and the resistance to internal pressure and the durability against opening and closing operations can be further improved.

  (12) In this embodiment, when the closed lid 14 is opened, the upper end portion of the lid side engaging support portion 32 and the lower end portion of the explosive loading machine main body side engaging support portion 19 can be pressed in the opening direction. It was configured as follows. Therefore, the opening operation of the lid 14 can be performed more easily.

The above embodiment may be modified as follows.
In the above embodiment, as the engagement structure, a rod-shaped structure may be employed on the lid 14 side, and a hole-shaped structure may be employed on the explosive loading machine main body 11 side.

(Fifth embodiment)
As shown in FIG. 13, as the explosive loading machine 10 of the fifth embodiment, in addition to the configuration of the fourth embodiment, a body mounting part 33 is further attached on the outer peripheral surface of the explosive loading machine main body 11.

  The body mounting portion 33 is attached to the outer peripheral surface of the explosive loading machine main body 11 on the opposite side of the center axis of the explosive loading machine main body 11 of the gas-liquid introduction pipe 12. The body mounting portion 33 has a shaft portion 33a and a head portion 33b whose diameter is larger than that of the shaft portion 33a, and has a T-shaped cross section in the axial direction. The body mounting portion 33 may be attached by screwing the tip of the shaft portion 33a into the outer peripheral surface of the explosive loading machine main body 11 by a screw structure or the like, or may be attached by welding or the like. Connecting means 35 such as a chain or a string may be attached to the body mounting portion 33. By the connecting means 35, it can be connected to a garment such as clothes or a belt, or can be hung on a part of the body such as a shoulder or a neck.

According to the explosive loading machine 10 of the fifth embodiment, the following effects can be obtained.
(13) In the present embodiment, the body attachment section 33 to be connected to the body (including the wearing clothes) is attached on the outer peripheral surface of the explosive loading machine main body 11. Therefore, the explosive loading machine 10 of the fifth embodiment can be easily connected to the body, and the explosive loading operation can be performed more smoothly.

The above embodiment may be modified as follows.
In the above embodiment, the shape of the body mounting portion 33 is not particularly limited, and any shape can be appropriately used as long as the shape can connect the explosive loading machine 10 of the fifth embodiment to the body.
In the above embodiment, the attachment position of the body attachment unit 33 is not particularly limited as long as the opening / closing operation of the lid 14 is not restricted.
In the above embodiment, the mounting state of the explosive loading machine 10 when the explosive loading machine 10 of the fifth embodiment is connected to the body via the body mounting section 33 is not particularly limited. As shown in FIG. 14, for example, the explosive loading machine 10 is mounted on the left side of the body by means of a belt, a shoulder, or the like, via the body mounting portion 33 and the connecting means 35, and the explosive charging port 11b is mounted so as to face the front side of the body. Is preferred. When the lid 14 is opened, the lid 14 hangs down by gravity with the support shaft 13 as an axis, so that the charging operation of the explosive charging port 11b can be easily performed. Further, since the lid 14 rotates in the direction opposite to the body, the rotation opening and closing operation can be performed smoothly.
In the above embodiment, a switch for discharging operation may be connected to the gas-liquid introduction pipe 12. When the switch for discharging operation is arranged so as to be integrated with the explosive loading machine 10 of the fifth embodiment, the operability of discharging of the explosive loading machine 10 can also be improved.

Next, technical ideas that can be grasped from the above embodiment and other examples will be additionally described below together with their effects.
(A) When the explosive loading machine is mounted on a body, the explosive loading port is positioned on the front side of the body, and the lid rotates in a direction opposite to the body when the explosive loading machine is mounted on the body. The explosive loading machine attached to the explosive loading machine main body such that when opened, the lid hangs down about the support shaft. Therefore, according to the invention described in (a), the operability of explosive loading of the explosive loading machine can be further improved.

  10 Explosive loading machine, 11 Explosive loading machine main body, 11b Explosive charging port, 11c Gas-liquid explosive discharging port, 12a Gas-liquid explosive inlet, 13 Support shaft, 14 Lid, 15a Explosive loading machine main body Side support holes, 16a: lid side support holes, 20: explosive loading machine main body side engaging portion, 20b, 31c: inclined portion, 22: lid side engaging portion, 25: O-ring as packing, 27: as elastic member A rubber tube of 31; an engaging pin as an engaging portion on the explosive loading machine main body side; 32a an engaging hole as an engaging portion on the lid side;

Claims (4)

An explosive loading machine having a cylindrical explosive loading machine body and a lid,
The cylindrical explosive loading machine body has an explosive charging port at one end, a gas-liquid explosive discharging port at the other end, and a gas-liquid introducing port on the side surface,
A support shaft for connecting the explosive loader main body and the lid is attached to the explosive loader main body and the lid so as to be substantially parallel to an axis of the explosive loader main body.
At least one of the explosive loading machine body and the lid is provided with a support hole substantially parallel to the axis of the explosive loading machine body, and the support shaft is inserted through the support hole.
The lid is configured to be able to open and close the explosive charging port around the support shaft,
The explosive loading machine main body and the lid are provided with an explosive loading machine main body side engaging portion and a lid side engaging portion that engage with each other at a position where the lid closes the explosive charging port,
At least one of the explosive loading machine body side engaging portion and the lid side engaging portion is provided with an inclined portion with respect to the direction in which the lid rotates.
When the lid is rotated and closed, the explosive loading machine main body side engaging portion and the lid side engaging portion are slid in contact with the explosive loading port by the inclined portion while the lid is pressed against the explosive charging port in a close contact direction. Composed ,
At the closed position of the lid, the lid and the end of the explosive loading unit main body on the side of the explosive loading port are arranged between the lid and the end of the explosive loading unit main body on the side of the explosive loading unit. Explosive loading machine with packing arranged on either side . The explosive loading machine according to claim 1 , wherein the support shaft is prevented from falling off via at least one of the support holes and an elastic member. One of the explosive loading machine main body side engaging portion and the lid side engaging portion is an engaging pin having the inclined portion, and the other is an engaging hole having substantially the same opening shape as a vertical cross section of the engaging pin. An explosive loading machine according to claim 1 or 2 . The explosive loading machine according to any one of claims 1 to 3 , wherein the explosive loading machine body further includes a body mounting portion for mounting the explosive loading machine on a body.

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