JPH06104966B2 - Levee sluice gate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a levee sluice gate.

[Prior Art] As shown in FIG.
The frame body 3 made of concrete is vertically installed in water under the condition of being separated from the slope 2, and the guide rail 4 is provided vertically on the frame body 3, and the door body 5 is provided along the guide rail 4 by the elevating mechanism (not shown). It is designed to move up and down vertically. Then, the operator operates the elevating mechanism over the frame body 3 through the passage 6 passed to the river bank 1 and the frame body 3 to open and close the door body 5 in the vertical direction. Reference numeral 7 denotes a pipe-shaped water channel embedded in the river embankment 1, which communicates with a dovetail 8 formed in the frame body 3 so as to supply water from the river for agricultural purposes.

However, in such a sluice gate, the frame body 3 is vertically installed in the water separated from the river embankment 1,
The water flow is changed by the frame body 3, the water head A between the frame body 3 and the embankment 1 is considerably lower than the water head B of the river, and the water head on the slope 2 of the embankment 1 is rapidly changed from B to A. This phenomenon is likely to occur. And the head is from B to A
When changed to, there is a possibility that the permeation speed into the embankment 1 will increase and that the scour force will increase due to the generation of the spiral flow to destroy the embankment 1. Moreover, since the frame body 3 is installed in water, the construction is troublesome.

In consideration of such a point, Japanese Utility Model Laid-Open No. 61-102624 proposes a slant gutter which is obliquely installed on an inclined slope and which lifts and lowers a door body by a hoisting machine through a lifting rod. However, since the elevating rod moves up and down together with the door body, there is a problem that when the door body is opened, the elevating rod obliquely protrudes toward the top end of the embankment, which hinders passage and elevating work.

Therefore, as a solution to this problem,
Japanese Patent No. 45734 proposes an inclined gate opening / closing device in which an inner screw body is fixed to the upper end of the gate main body, a screw shaft is screwed into the inner screw body, and the upper portion of the screw shaft is connected to a rotating body. There is. Further, Japanese Utility Model Laid-Open No. 62-110332 proposes an opening / closing device in which a spindle and a door body are moved up and down together, and the spindle is covered with a bellows for sealing.

[Problems to be Solved by the Invention] In the tilt game opening / closing device of Japanese Utility Model Laid-Open No. 60-45734, when a screw shaft is rotated, an inner screw body screwed to the screw shaft moves up and down, thereby rotating the screw shaft. The gate body can be raised and lowered without moving up and down. By the way, in the tilt game opening / closing device, although the spiral rod does not project on the embankment, since the handle or the like for rotating the spiral rod is arranged on the upper part of the embankment, these obstruct the passage and the like. There is a risk of damage to the device due to contact with persons other than the lifting worker, and the screw shaft that engages with the inner screw body is exposed. There was a danger that the door would not be able to be screwed smoothly and the gate would not be able to move up and down in a stable manner. In this respect, the one in Japanese Utility Model Laid-Open No. 62-110332 can prevent dust and the like from adhering to the spindle by covering the spindle with a bellows, but since the spindle and the door body move up and down together, When this type of spiral rod is applied to the one in which the gate is lifted by rotating at a fixed position, there is a problem that the mounting work and the structure become complicated.

Therefore, the present invention provides a levee sluice gate that can prevent breakage of the levee, can be easily installed, has excellent safety, and can be easily attached to the exterior body, and can stably lift and lower the door body. The purpose is to do.

[Means for Solving the Problems] The present invention is directed to a frame body that is provided in an inclined direction substantially along the slope of a bank and has an operation chamber in the upper portion, and a guide that is provided along the frame body and that guides the door body up and down. Portion, a female screw portion fixedly provided on the upper part of the door body, a male screw rod screwed to the female screw portion and provided in the inclination direction, and stored in the operation chamber of the frame body, and A rotation drive mechanism that connects the upper part of the male screw rod and rotates the male screw rod to raise and lower the door, and a male screw rod projecting downward from the operation chamber along the inclination direction. An outer tube that passes through the upper side and an outer body that fixes the upper end to the outer periphery of the lower end of the outer tube and fixes the lower end to the door body to cover the male screw rod, and expands and contracts according to the raising and lowering of the door body. And is equipped with.

[Operation] With the above configuration, the frame body can be provided on the dike instead of being installed in the water away from the dike,
The door moves up and down almost along the slope. Further, the rotary drive device does not project above the bank, and the external body covering the male screw rod prevents dust and the like from adhering to the male screw rod. Moreover, since the outer body has its upper end fixed to the outer periphery of the lower end of the outer tube inserted through the upper part of the male screw rod, the mounting work becomes easy.

[Embodiment] An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1 and FIG. 2, 11 is a concrete frame body arranged on the river embankment 12, which is a front wall portion 14 that is inclined along the slope 13 of the river embankment 12, A rear wall portion 16 positioned vertically behind the front wall portion 14 and vertically provided in the embankment 15, and an operation room 17 formed by connecting the upper portions of the front wall portion 14 and the rear wall portion 16 in series, Dowel 18 formed at the lower end of the front wall portion 14
A channel 19 is horizontally embedded in the embankment 15 and is connected to the front wall portion 14 and the rear wall portion 16.

Reference numeral 20 denotes a guide rail that is provided on the left and right of the front surface of the front wall portion 14 of the frame body 11 in an inclined shape, and guides the door body 21 up and down along the guide rail 20 at a substantially slope. A guide roller 22 is pivotally attached to an edge of the door body 21, and the sliding resistance of the door body 21 with respect to the front surface of the front wall portion 14 is reduced by sliding the guide roller 22 on the guide rail 20. At the same time, a watertight packing (not shown) is attached to the contact surface between the guide rail 20 and the door body 21 to maintain the watertightness. A pair of left and right female screw portions 23 are fixedly provided on the upper portion of the door body 21.

Reference numeral 24 denotes a rotary drive mechanism that rotates a male screw rod described later to raise and lower the door body 21, and this is a main shaft 2 connected to a manual handle 25 or a motor via a chain 26 and a sprocket 27.
8 and gear group 3 consisting of bevel gears etc. in gear box 29
It is composed of a pair of horizontal left and right connecting rods 31 to which the rotation of the main shaft 28 is transmitted via 0, and a bevel gear 33 in a gear box 32. The connecting rod 31 is provided via the bevel gear 33.
Is transmitted to the left and right male screw rods 34. The rotary drive mechanism 24 is housed in the operation chamber 17 and is covered with a protective cover 35 except for the manual handle 25. The operation chamber 17 is also provided with a lid (not shown) so as to be removable. Further, a trap 36 is provided in the operation room 17.

The upper end of the male screw rod 34 is a bevel gear in the gear box 32.
33 is fixed, and the lower end is screwed into the female screw portion 23 so that the door body 21
It is a free end inserted through the top of the.

37 is a bellows-shaped exterior body covering the male screw rod 34,
It is made of flexible rubber material and has a male screw rod 34 at the top.
The upper part of the is fixed to the outer periphery of the lower end of the inserted outer tube 38, and the lower end is fixed to the female screw part 23. The door 21 is adapted to expand and contract as it moves up and down. Further, the outer pipe 38 is provided so as to project downward from the operation chamber 17 along the slope of the slope.

The operation of the above structure will be described below.
The main shaft 28 is rotated by the rotation of the motor 25 or the motor, and this rotation is branched and transmitted in two directions by the gear group 30 in the gear box 29, the left and right connecting rods 31 are rotated, and the bevel gear in the gear box 32 is further rotated. The left and right male screw rods 34 are rotated by 33. As a result, the female screw portion 23 moves up and down, and the door body 21 provided integrally with the female screw portion 23 moves up and down along the slope of the slope via the guide rail 20 to open and close the drinking cup 18. Also, the male screw rod 34
The exterior body 34 for covering the outer wall prevents dust and the like from adhering to the male screw rod 34.

As described above, in the above-described embodiment, the river bank 12 is provided with the frame body 11, the guide rail 20 is provided on the front surface which is the inclined surface of the frame body 11, and the male screw rod by the rotation drive mechanism 24 is provided.
Since the door body 21 is moved substantially along the slope of the slope 13 to open and close the drinking cup 18 by the rotating operation of 34,
Unlike the conventional case shown in the figure, it is not necessary to install the frame body 3 in the water, and therefore, it is possible to prevent the water head from changing from B to A, and the levee 12 is destroyed due to the increase in infiltration speed and scour force generated thereby. Can be prevented. Also,
Since it is not necessary to install the frame body 11 in water, it is possible to easily construct the frame body using concrete and install the door body 21 and the rotation drive mechanism 24. In addition, the exterior body
By covering the male screw rod 34 with 37, the male screw rod 34 is
It is possible to prevent dust and the like from adhering to the 34 and to prevent the screw part from being clogged, so that a stable raising / lowering operation of the door body 21 can be ensured. As it expands and contracts, it does not prevent the door body 21 from moving up and down. Furthermore, on the outer periphery of the lower end of the outer tube 38 that passes through the upper part of the male screw rod 34,
Since the upper end of the exterior body 37 is fixed, the exterior body 37
It becomes relatively easy to install. Furthermore,
Not only does the male screw rod 34 not protrude from the bank 12, but also the rotary drive mechanism 24 for rotating the male screw rod 34 is housed in the operation room 17 above the frame body 11, so that it does not interfere with passage or the like. In addition, there is no possibility that a person other than the worker will contact and damage the device.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention. For example, the structure of the frame body, water channel, door body or rotary drive mechanism can be applied to various types. Also, the description has been given by taking the river embankment as an example, but it can be applied to the embankment of the sea or lake.

[Advantages of the Invention] The present invention includes a frame body which is provided in an inclined direction substantially along a slope of a bank and has an operation chamber at an upper portion, a guide portion which is provided along the frame body and which guides a door body up and down, A female screw portion fixed to the upper portion of the door body, a male screw rod screwed to the female screw portion and provided in the inclined direction, and housed in the operation chamber of the frame body, and of the male screw rod. A rotation drive mechanism that connects the upper part and rotates the male screw rod to raise and lower the door body, and inserts the upper side of the male screw rod projecting downward from the operation chamber along the inclination direction. And an outer body having an upper end fixed to a lower outer periphery of the outer pipe and a lower end fixed to the door body to cover the male screw rod, and an elastic body that expands and contracts according to ascending and descending of the door body. Is something
It is possible to provide a levee sluice gate that can prevent damage to the levee, can be easily installed, has excellent safety, and can be easily attached to an exterior body, and can stably lift and lower the door.

[Brief description of drawings]

1 and 2 show an embodiment of the present invention. FIG. 1 is a vertical side view, FIG. 2 is a partially cutaway front view, and FIG. 3 is a schematic explanatory view showing a conventional example. 11 …… Frame, body 12 …… River embankment 13 …… Slope, 17 …… Operating room 20 …… Guide rail (guide part) 21 …… Door body, 23 …… Female screw part 24 …… Rotary drive mechanism, 34 …… Male screw rod 37 …… Exterior body, 38 …… Outer tube

Claims (1)

[Claims] 1. A frame body which is provided in an inclined direction substantially along a slope of a bank and has an operation chamber in an upper part, a guide portion which is provided along the frame body and which guides a door body up and down, and the door body. A female screw portion fixed to the upper portion, a male screw rod screwed to the female screw portion and provided in the inclination direction, and housed in the operation chamber of the frame body, and the upper portion of the male screw rod is connected. And a rotation drive mechanism for rotating the male screw rod to move up and down the door body, and an outer tube projecting downward from the operation chamber along the inclination direction and passing through the upper side of the male screw rod. And an outer body that fixes the upper end to the outer periphery of the lower end of the outer tube, fixes the lower end to the door body to cover the male screw rod, and expands and contracts according to the lifting and lowering of the door body. The levee sluice gate.