JP6968707B2 - Sediment discharge gate - Google Patents

Description

The present invention relates to a sediment discharge gate installed on the embankment of a reservoir in order to discharge the sediment accumulated in the reservoir.

In reservoirs such as agricultural reservoirs, sediment accumulates on the bottom of the pond over the years, causing harmful effects.Therefore, as a means of discharging these sediments, a sediment discharge gate is installed on the embankment of the reservoir. is set up. Conventionally, earth and sand discharge gates having various structures and functions have been proposed, but as one related to the present invention, for example, there is a "reservoir slant" described in Patent Document 1.

This "slanting trough of the reservoir" has a door body that opens and closes the intake port provided on the inclined surface of the reservoir, a door stop on both sides of the door body that guides the vertical movement of the door body, and both sides of the door body. It is provided with a pair of left and right hydraulic cylinders arranged along the portion with the rod facing upward, and an operation portion installed on the upper part of the inclined surface to control the hydraulic cylinder via a tube, and the upper end portion of the rod is provided. It is characterized in that it is connected to a mounting body provided on the upper part of the door body.

Japanese Unexamined Patent Publication No. 6-88323

In the above-mentioned "reservoir slant", as described in paragraphs [0008] and [FIG. 4] of Patent Document 1, door stops 3 are provided on both sides of the door body 2, and the door stops 3 are provided. Is provided so as to hold both side portions of the door body 2, and has a function of guiding the vertical movement of the door body 2.

However, since the cross section of the above-mentioned door stop 3 is U-shaped, sediment tends to accumulate in the inner portion of the door stop 3 during long-term use, and a part of the accumulated sediment is likely to accumulate. If it is caught between the door body 2 and the door stop 3, the opening / closing operation of the door body may be hindered or the sealing function of the door body may be deteriorated.

Therefore, the problem to be solved by the present invention is to provide an earth and sand discharge gate which is excellent in sealing function and is less likely to cause a malfunction of opening and closing of the door body and a deterioration of the sealing function of the door body due to the biting of earth and sand. be.

The earth and sand discharge gate of the present invention is
It is a sediment discharge gate that has the function of opening and closing the opening of the drainage channel provided on the embankment surface of the reservoir with a door body.
With the door stop member arranged around the opening,
A door body that moves along the door stop member and
A ridge-shaped guide portion provided on the side portion of the door stop member so as to be parallel to the moving direction of the door body,
A door wedge that is projected from the side of the door body in a hook shape so as to surround the side edge portion of the guide portion and has an engaging portion facing the back surface portion of the guide portion.
It is provided with a door-stopping wedge that is projected from the back surface of the guide portion and has an engaging surface that can come into contact with the engaging portion of the door body wedge.
It is characterized by having an inclined surface that is inclined in a direction away from the door body as the engaging surface is directed toward the closing direction of the door body.

In the earth and sand discharge gate, when the door body moves in the opening direction, protrusions that abut on the door stop member and separate the door body from the door stop member are provided on both sides of the door body.
It is desirable to provide pocket portions on both sides of the door stop member so that the protrusions are fitted when the door body is closed to bring the door body into close contact with the door stop member.

In the earth and sand discharge gate, the protrusion and the pocket are provided at a plurality of locations separated from each other in the opening / closing direction of the door body, and the protrusion located below cannot be fitted into the pocket located above. Is desirable.

In the earth and sand discharge gate, it is desirable to attach an abrasion resistant material to the portion of the protrusion that comes into contact with the door stop member.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide an earth and sand discharge gate which is excellent in sealing function and is less likely to cause a malfunction of opening and closing of a door body due to biting of earth and sand and a deterioration of the sealing function of the door body.

It is a vertical cross-sectional view which shows the state which installed the earth and sand discharge gate which is an embodiment of this invention on the embankment. It is a partial notch plan view of the earth and sand discharge gate seen from the arrow X direction in FIG. It is a cross-sectional view of the earth and sand discharge gate shown in FIG. It is a partially omitted enlarged view of the part shown by the arrow line A in FIG. It is a partially omitted enlarged view of the part shown by the arrow line B in FIG. It is a partially omitted side view of the earth and sand discharge gate shown in FIG. It is an enlarged view which partially omitted the part shown by the arrow line C in FIG. It is an enlarged view which partially omitted the part shown by the arrow line D in FIG. It is a partially omitted exploded view of the earth and sand discharge gate shown in FIG. It is a partially omitted side view of the lower protrusion part shown in FIG. It is a partially omitted side view of the upper protrusion shown in FIG. It is a partially omitted plan view of the door stop member in the EE line in FIG.

Hereinafter, the sediment discharge gate 100 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 12.

As shown in FIGS. 1 and 2, the sediment discharge gate 100 has a function of opening and closing the opening T1 of the drainage channel T provided on the embankment surface S of the reservoir R by the door body 10. When the switch (not shown) arranged above the embankment surface S is operated and the operation shaft 50 connected to the upper edge of the door body 10 is moved up and down in the axial direction (arrow line M direction), the door is opened. The body 10 moves up and down along the door stop member 30, and the opening T1 of the drainage channel T is opened and closed.

The earth and sand discharge gate 100 includes a door body 10, a door stop member 30, a guide portion 32, door body wedges 12 and 13, and door stop wedges 14 and 15. The door stop member 30 is arranged around the opening T1 of the drainage channel T, the door body 10 can move in the arrow M direction along the door stop member 30, and the side portion 31 of the door stop member 30 has a door. A ridge-shaped guide portion 32 is provided so as to be parallel to the opening / closing direction (arrow line M direction) of the body 10.

As shown in FIGS. 3 to 5, the door body wedges 12 and 13 are projected from the side portion 11 of the door body 10 in a hook shape so as to surround the side edge portion 32a of the guide portion 32, and the guide portion 32 is formed. It has planar engaging portions 12a and 13a facing the back surface portion 32b. On the back surface portion 32b of the guide portion 32, door stop wedges 14 and 15 having engaging surfaces 14a and 15a capable of contacting the engaging portions 12a and 13a of the door body wedges 12 and 13 are projected. The engaging surfaces 14a and 15a of the door stop rusts 14 and 15 are inclined in a direction away from the door body 10 (arrow line N direction) toward the closing direction of the door body 10 (arrow line M1 direction).

Further, as shown in FIGS. 7 and 8 to be described later, the planar engaging portions 12a and 13a of the door body wedges 12 and 13 also move toward the closing direction (arrow line M1 direction) of the door body 10, respectively. It is inclined in the direction away from the door (arrow line N direction).

As shown in FIGS. 4 to 9, downward protrusions on both sides of the back surface 10b (the portion facing the opening T1 of the drainage channel T) of the door body 10 of the sediment discharge gate 100 facing the door stop member 30. A portion 16 and an upper protrusion 17 are provided. The lower protrusion 16 and the upper protrusion 17 are arranged at a distance along the moving direction of the door body 10.

As shown in FIGS. 10 and 11, the side view shapes of the lower protrusion 16 and the upper protrusion 17 are hexagonal with an inverted trapezoidal portion (sled portion), and the lower surface portions 16a and 17a are respectively. Abrasion resistant materials 16b and 17b including gunmetal are attached. The minimum length 16c of the lower protrusion 16 in the door body 10 opening / closing direction (arrow line M direction) is larger than the minimum length 17c of the upper protrusion 17 in the arrow M direction.

As shown in FIGS. 1 and 12, the lower pocket portion 18 and the upper pocket recessed in the direction away from the door body 10 (arrow line N direction) on the surfaces of the guide portions 32, 32 on both side portions of the door stop member 30. Department 19 has been established. As shown in FIG. 12, a total of four lower pocket portions 18 and upper pocket portions 19 are arranged on the surfaces of the guide portions 32 and 32.

The four lower pocket portions 18 and the upper pocket portion 19 have a total of four downward protrusions provided on the back surface portion 10b of the door body 10 when the door body 10 is in a state where the opening T1 of the drainage channel T is closed. The portion 16 and the upper protrusion 17 are arranged at positions where they are fitted. Both the lower pocket portion 18 and the upper pocket portion 19 have a bottomed concave shape, and through holes 18a and 19a are provided at the lowermost portions of the bottom portions 18b and 19b, respectively.

As shown in FIGS. 7, 8 and 12, the maximum length 18c of the lower pocket portion 18 in the door body 10 opening / closing direction (arrow line M direction) is from the maximum length 19c of the upper pocket portion 19 in the arrow line M direction. It's big. Further, since the maximum length 19c of the upper pocket portion 19 in the arrow line M direction is smaller than the minimum length 16c of the lower protrusion portion 16 in the arrow line M direction, the lower protrusion portion 16 cannot be fitted into the upper pocket portion 19. Is.

Next, the usage, function, and the like of the earth and sand discharge gate 100 will be described with reference to FIGS. 1 to 12. As described above, when the operation shaft 50 connected to the upper edge of the door body 10 is moved up and down in the axial direction by operating a switch (not shown) arranged above the embankment surface S, the door body is moved up and down. 10 moves up and down along the door stop member 30, and the opening T1 of the drainage channel T is opened and closed. Therefore, when it becomes necessary to discharge the sediment accumulated in the reservoir R, if the door body 10 is raised by operating the switch, the opening T1 of the drainage channel T is opened, so that the sediment in the reservoir R is discharged. Can be discharged via the drainage channel T.

As shown in FIGS. 3 to 5, the door wedges 12 and 13 are projected from the side portion 11 of the door body 10 in a hook shape so as to surround the side edge portion 32a of the guide portion 32. The body wedges 12, 13 and the guide portion 32 are always exposed. For this reason, it is difficult for earth and sand to bite into the door, and it is difficult for the door body 10 to open and close poorly and the door body 10 to have a poor sealing function due to the bite of earth and sand. In addition, it is easy to remove the earth and sand when they are caught.

As shown in FIGS. 1 and 2, when the opening T1 of the drainage channel T is closed by the door body 10, the engaging portions 12a and 13a of the door body wedges 12 and 13 are formed as shown in FIGS. 3 to 6. By abutting on the engaging surfaces 14a and 15a of the door stop wedges 14 and 15, the entire door body 10 is pressed against the door stop member 30, so that excellent airtightness is exhibited. Further, since the engaging surfaces 14a and 15a of the door stop rusts 14 and 15 are inclined in the direction away from the door body 10 (arrow line N direction) toward the closing direction of the door body 10 (arrow line M1 direction). As the door body 10 approaches the closed state, the pressing force of the door body 10 against the door stop member 30 is automatically generated.

When the door body 10 is in a state where the opening T1 of the drainage channel T is closed, the lower protrusion 16 and the upper protrusion 17 on the back surface portion 10b of the door body 10 are inside the lower pocket portion 18 and the upper pocket portion 19, respectively. It is fitted in. Therefore, the watertight rubber 20 attached along the entire periphery of the back surface of the door body 10 is in close contact with the door stop member 30 and is maintained in a watertight state.

Next, when opening the opening T1 of the drainage channel T, the door body 10 is opened by operating an opening / closing device (not shown) arranged above the embankment surface S to raise the operation shaft 50 in the axial direction. It moves in the direction (direction of the arrow line M2), and along with this, the door body rusts 12 and 13 are separated from the door stop rusts 14 and 15, and as shown in FIGS. 7 and 8, the inside of the lower pocket portion 18. , The lower protrusion 16 and the upper protrusion 17 fitted in the upper pocket portion 19 move in the arrow line M2 direction as they are.

The guide slopes 16d and 17d of the lower protrusion 16 and the upper protrusion 17 that have moved in the arrow line M2 direction are on the upper inner peripheral surface 18d of the lower pocket portion 18 and the upper inner peripheral surface 19d of the upper pocket portion 19, respectively. It abuts and slides up along the upper inner peripheral surfaces 18d and 19d, and eventually the lower protrusion 16 and the upper protrusion 17 are separated from the lower pocket 18 and the upper pocket 19. Since the upper inner peripheral surfaces 18d and 19d are inclined in the same direction as the guide slopes 16d and 17d, the sliding is smoothly performed, and the lower protrusion 16 and the upper protrusion 17 are the lower pocket portion 18 and the upper pocket, respectively. Easily detach from part 19.

As a result, the lower protrusion 16 and the upper protrusion 17 are placed on the surfaces of the guide portions 32 on both sides of the door stop member 30 (the lower surfaces of the wear-resistant materials 16b and 17b of the lower protrusion 16 and the upper protrusion 17 are guides. The door body 10 is held at a position farther from the door stop member 30 than when it is in the closed state, so that the door stop member 30 has been added to the watertight rubber 20. The pressing force against is released.

After that, when the operation shaft 50 is raised in the axial direction, the lower protrusion 16 and the upper protrusion 17 slide along the door stop member 30 and the removal door stop member 33, and the door body 10 moves in the arrow M2 direction. Finally, the opening T1 of the drainage channel T is fully opened. At this time, the lower protrusion 16 and the upper protrusion 17 are placed on the removal door stop member 33. In the process in which the lower protrusion 16 and the upper protrusion 17 slide along the door stop member 30 and the removable door stop member 33, the wear-resistant materials 16b and 17b of the lower protrusion 16 and the upper protrusion 17 are the door stop members. Since it slides along the 30 and the removal door stop member 33, the sliding is smooth and the wear of the sliding portion can be prevented.

Since the minimum length 16c of the lower protrusion 16 is larger than the maximum length 19c of the upper pocket portion 19, the lower protrusion 16 is being moved in the opening direction (arrow line M2 direction) of the door body 10. Passes through the upper surface portion of the upper pocket portion 19, the lower protrusion 16 does not fit into the upper pocket portion 19. Similarly, when the lower protrusion 16 passes through the upper surface portion of the upper pocket portion 19 while the door body 10 is moving in the closing direction (arrow line M1 direction), the lower protrusion 16 fits into the upper pocket portion 19. Don't get stuck.

On the other hand, when the door body 10 is half-opened, the lower protrusion 16 abuts on the surface of the guide portions 32 on both sides of the door stop member 30, and the upper protrusion 17 abuts on the surface of the removable door stop member 33. The door body 10 is located at a position farther from the door stop member 30 and the detachable door stop member 33 as compared with the case where the door body 10 is in the closed state, and is kept in a state where no pressing force is applied to the entire watertight rubber 20. Residual deformation (particularly, partial residual deformation) of the watertight rubber 20 due to pressure can be avoided.

When closing the door body 10, when the switch (not shown) arranged above the embankment surface S is operated to lower the operation shaft 50 in the axial direction, the lower protrusion 16 and the upper protrusion of the door body 10 are lowered. The portion 17 descends along the removal door stop member 33 and the door stop member 30, and the opening T1 of the drainage channel T is closed.

At the final stage of the closing operation of the door body 10, the lower protrusion 16 and the upper protrusion 17 of the back surface portion 10b of the door body 10 are fitted into the lower pocket portion 18 and the upper pocket portion 19, respectively, and the door body rust 12 , 13 the engaging portions 12a, 13a come into contact with the engaging surfaces 14a, 15a of the door stop rusts 14, 15, respectively, so that the entire door body 10 is pressed toward the door stop member 30, so that the watertight rubber 20 Is in close contact with the door stop member 30 and is kept in a watertight state.

The sediment discharge gate 100 described with reference to FIGS. 1 to 12 shows an example of the sediment discharge gate according to the present invention, and the sediment discharge gate according to the present invention is not limited to the above-mentioned sediment discharge gate 100. ..

The sediment discharge gate of the present invention can be widely used by being installed on the embankment of a reservoir as a means for discharging sediment accumulated in a reservoir such as an agricultural reservoir.

10 Door body 10a Surface part 10b Back part 11 Side part 12,13 Door body rust 12a, 13a Engagement part 14,15 Door rust 14a, 15a Engagement surface 16 Downward protrusion 17 Upper protrusion 16a, 17a Bottom part 16b , 17b Abrasion resistant material 16c, 17c Minimum length 16d, 17d Guide slope 18 Lower pocket part 19 Upper pocket part 18a, 19a Through hole 18b, 19b Bottom 18c, 19c Maximum length 18d, 19d Upper inner peripheral surface 20 Watertight rubber 30 doors Hit member 31 Side part 32 Guide part 32a Side edge part 32b Back part 33 Detachable door contact member 50 Operation axis 100 Sediment discharge gate R Embankment surface T Drainage channel T1 Opening

Claims (4)

It is a sediment discharge gate that has the function of opening and closing the opening of the drainage channel provided on the embankment surface of the reservoir with a door body.
With the door stop member arranged around the opening,
A door body that moves along the door stop member and
A ridge-shaped guide portion provided on the side portion of the door stop member so as to be parallel to the moving direction of the door body,
A door wedge that is projected from the side of the door body in a hook shape so as to surround the side edge portion of the guide portion and has an engaging portion facing the back surface portion of the guide portion.
It is provided with a door-stopping wedge that is projected from the back surface of the guide portion and has an engaging surface that can come into contact with the engaging portion of the door body wedge.
A sediment discharge gate having an inclined surface that is inclined in a direction away from the door body as the engaging surface is directed toward the closing direction of the door body. When the door body moves in the opening direction, protrusions that come into contact with the door stop member and separate the door body from the door stop member are provided on both sides of the door body.
The earth and sand discharge gate according to claim 1, wherein the door stop member is provided with a pocket portion in which the protrusion is fitted when the door body is closed to bring the door body into close contact with the door stop member. The second aspect of claim 2, wherein the protrusion and the pocket are provided at a plurality of locations separated from each other in the opening / closing direction of the door body, and the protrusion located below is of a size that cannot be fitted into the pocket located above. Sediment discharge gate. In the protrusion, the soil according to claim 2 or 3 Symbol mounting annexed wear material portion contacting the door stop member brush gates.

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