JPH0656130U - Elevating gate - Google Patents

Abstract

(57) [Summary] [Purpose] The height of the gate post that holds the door in the raised position can be reduced, the gate post of the gate and the guide guide can be downsized, and the flow of the waterway is not obstructed. [Structure] A guide guide 3 for vertically holding and guiding both side ends of a door body 2 of a gate, which is installed in a water channel 4 so as to be vertically movable,
The door 2 is formed in an arcuate shape in the up-down direction, and has a turning locus such that the door 2 at the highest position, which is substantially upside down, has a height substantially equal to or slightly higher than the upper end of the water channel 4. It is configured along the line.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an ascending / descending gate installed in a waterway, rising to open the waterway and descending to close the waterway, and in particular, to make its inclination approach a horizontal direction as the door body of the gate rises. Thus, the present invention relates to an elevating type gate in which the height of the gate pillar that holds the door body in the raised position can be lowered.

[0002]

[Prior art]

 Conventionally, vertical lift gates and radial gates have been known as elevating gates that are installed in a waterway and rise to open the waterway and descend to close the waterway.

The vertical lifting gate has a structure in which a flat plate-shaped door body is installed vertically to the water channel, and the flat plate-shaped door body rises straight up. Also, the door body that has risen directly above is structured to be held in its raised position, and a gate post or the like that holds the door body in the raised position is provided on the upper side of the waterway.

In the radial gate, a door body having an arcuate side cross-section is connected and supported via a leg portion to a rotating shaft pivotally supported on the upper part of the waterway, and the door body rotates vertically with respect to the waterway. The structure is to open and close the waterway.

[0005]

[Problems to be solved by the device]

 However, as described above, in the vertical type lifting gate, since the door body is raised straight up, the gate post or the like that holds the door body at the raised position inevitably has a high height. There was an inconvenience.

In addition, in the radial gate, a part of the leg portion that connects and supports the door body to the rotating shaft is below the water surface in the water channel, and a part of the leg portion below the water surface controls the flow of the water channel. There was an inconvenience of blocking.

The present invention has been made in view of the above problems in order to solve the problems. The purpose of the present invention is to increase the inclination of the gate in the horizontal direction as the door body rises. By moving them closer to each other, the height of the gate post that holds the door in the ascended position can be lowered, the gate post of the gate and the guide guide can be downsized, and the liftable gate that does not obstruct the flow of the waterway. To provide.

[0008]

[Means for Solving the Problems]

 In order to achieve the above objects, the present invention forms a guide guide that vertically holds and guides both side edges of a door body of a gate that is vertically installed in a waterway, and has a substantially vertical arc shape. It has a structure formed along the pivotal locus of the door body so that the height of the door body at the highest position upside down is substantially the same as or slightly exceeds the upper end of the water channel.

Here, as a preferred mode, the door body, in which both side ends of the guide guide are vertically movable, may have a side cross section formed in an arc shape or a polygon shape.

[0010]

[Action]

 The present invention having the above-mentioned structure operates as follows. That is, the arc-shaped guide guide is formed in the arc shape in the vertical direction, and the height of the door body at the substantially upside-up position is substantially the same as or slightly exceeds the upper end of the water channel. Since it is formed along the rotation path of the door body, the door body of the gate approaches the horizontal direction as the arc-shaped guide guide moves upward, and the guide guide does not become high and supports the guide guide. The gate post does not become taller, and it works to reduce the size of guide guides and gate posts. Also, since the gate doors move up and down while being held by the guide guides at both ends, they support the door. It eliminates the need for legs and eliminates the factors that obstruct the flow of water through the legs.

[0011]

【Example】

 Hereinafter, the present invention will be described more specifically on the basis of the embodiments shown in the drawings. Here, FIG. 1 is a side sectional view of the elevating gate, FIG. 2 is a plan view of the elevating gate, and FIG. 3 is an enlarged sectional view of the guide.

In the figure, the elevating type gate 1 can reduce the height of the gate post that holds the door body 2 in the raised position, can reduce the size of the gate post of the gate, and the guide guide 3, and can also reduce the flow of the water channel 4. The door body 2 moves up and down along the arc-shaped guide guide 3 formed on the side wall of the water channel 4 to open and close the water channel 4.

The door body 2 has a function of moving up and down to directly open and close the water channel 4. For example, the side cross section as shown in FIG. 1 is formed in an arc shape. The door body 2 is arranged in a state of blocking the water channel 4, that is, generally arranged in a direction orthogonal to the water flow direction of the water channel 4. The door body 2 that opens and closes the water channel 4 is made of a material having a strength that can withstand a certain water pressure. Since the door body 2 is formed to have an arcuate side cross section, the rigidity in the width direction is increased and it is difficult to deform in the width direction.

The guide guide 3 has a function of vertically guiding and holding both side ends of the door body 2, and is formed on the side wall of the water channel 4 in an arc shape in the vertical direction. The guide guide 3 is formed along the rotation trajectory of the door body 2 such that the height of the door body 2 in the most upside-down position is substantially the same as or slightly exceeds the upper end of the water channel 4. Has been done.

The shape of the arc-shaped guide guide 3 is an arc that is in contact with an inclined tangent line that is close to a vertical state in the lower part of the water channel 4, and as it goes up a little, an arc that is in contact with the tangent line that is in a vertical state. As it goes upward, it gradually becomes inclined from the vertical state to form a circular arc that touches the tangent line that approaches the horizontal state.

That is, the guide guide 3 is formed such that the virtual chord connecting the upper end and the lower end of the arc-shaped guide guide 3 is inclined toward the center of the arc. For example, by setting the center of the arc of the arc-shaped guide guide 3 at the position from the lower side of the water channel 4 to the bottom or below the bottom, the above-mentioned shape of the arc-shaped guide guide 3 is achieved. To be done.

The guide guide 3 is formed in a concave groove on the side wall of the water channel 4, and both side ends of the door body 2 are guided and guided by the concave guide guide 3 to move up and down. Rollers 2a as shown in FIG. 3 (A) or 3 (B) are attached to both ends of the door body 2 at appropriate intervals so that the guide guides 3 in the form of concave grooves can be smoothly moved up and down.

The door body 2 of the elevating gate 1 installed in the water channel 4 is provided so as to be watertight between the bottom surface and the side wall of the water channel 4. Of these, for example, a rubber watertight material 2b is attached in the vertical direction on the front and rear surfaces on the side end side of the door body 2 which is watertight between the side wall of the water channel 4.

An opening / closing device 5 for opening and closing the door body 2 is installed above the water channel 4. The opening / closing device 5 is provided above the upper end side of the door body 2 and is installed in the center of a wire net-like mounting table 6 provided above the water channel 4. A management passage 7 is laterally provided above the water channel 4 and next to the mounting table 6.

A connecting piece 2c is provided on the lower end of the arc-shaped door body 2 on the convex side, and the tip of the cord 8 is connected to the connecting piece 2c. Since the rope 8 pulls up the door body 2 directly, the other end side is wound around the winding shaft 5a of the switchgear 5 installed above the water channel 4.

The winding shaft 5a of the opening / closing device 5 is generally linked to a drive motor (not shown). Further, the opening / closing device 5 is provided with a manual handle 5b for manually rotating the winding shaft 5a when the drive motor fails or is not attached.

In the opening / closing device 5, the other end of the cord 8 whose tip is connected to the connecting piece 2 c on the lower end side of the door 2 is wound around the winding shaft 5 a of the opening / closing device 5, so that the door 2 Is lifted to open the water channel 4, and the other end of the rope 8 is rewound, whereby the weight of the door element 2 is used to lower the door element 2 to close the water channel 4.

Further, a plurality of support rollers 9 for supporting the door body 2 that has been raised above the water channel 4 to open the water channel 4 at its highest position are laterally provided above the water channel 4. Each of the support rollers 9 is horizontally installed at a position that supports the arcuate concave side of the door body 2 that is substantially upside down at the highest position and the lower surface side of the door body 2. Both ends of the support roller 9 are rotatably supported in forward and reverse directions, and the rotation of the support roller 9 maintains the rising and falling of the door body 2 from which the guide guide 3 is pulled out.

Next, the operation of the elevating gate according to the above embodiment will be described below. When opening the liftable gate 1 in the fully closed state, a drive motor (not shown) is driven or the manual handle 5b is rotated to drive the winding shaft 5a of the opening / closing device 5 to pull up the door body 2. When the opening / closing device 5 is driven, the winding shaft 5a of the opening / closing device 5 rotates to pull up the other end of the cord 8.

Since the tip end side of the rope 8 whose other end is pulled up to the winding shaft 5 a is connected to the connecting piece 2 c at the lower end of the door body 2, the rope 8 is connected by the winding shaft 5 a of the opening / closing device 5. When the door body 2 is pulled up, the door body 2 starts to rise in conjunction with this. Since both side ends of the door body 2 are guided by the guide guides 3 formed on the side walls of the water channel 4, the door body 2 rises along the guide guides 3. The roller 2a at the side end of the door body 2 rolls in the guide guide 3 having the concave groove, so that the door body 2 can smoothly rise in the guide guide 3.

The guide guide 3 is formed in an arcuate shape in the vertical direction, and the height of the door body 2 in the most upside-down position is substantially the same as or slightly exceeds the upper end of the water channel. Since it is formed along the turning trajectory of the body 2, the rising door body 2 moves upward while drawing an arc, and starts opening the water channel 4 from the lower side.

The ascending door body 2 gradually comes out from the upper end of the guide 3 from the upper side thereof as it ascends. The lower surface of a part of the door body 2 that has come out of the guide 3 is supported by a support roller 9 provided above the water channel 4. Since the support roller 9 is rotatably supported in the forward and reverse directions, the door body 2 is rotatably supported by the support roller 9 while maintaining a smooth rise.

The ascending door body 2 gradually rises in the ascending angle as it ascends, approaches an upside-down state from the vertical state, and becomes a substantially upside-down state at the highest position. Most of the door body 2 that has reached the maximum raised position has the guide guide 3 removed, and only a part of the lower end side remains in the guide guide 3.

When the door body 2 reaches the highest position, the drive motor (not shown) is stopped, or the handwheel 5b is stopped from rotating, and the drive of the winding shaft 5a of the opening / closing device 5 is stopped and the winding operation is performed. The rotation state of the shaft 5a is restrained and fixed so as not to rotate in the forward and reverse directions, and the rise of the door body 2 is stopped and held at the maximum rise position. The door body 2 is in a substantially upside-down state at the highest position. The door body 2 which is substantially upside down at the highest position can be used as a passage that crosses the water channel 4. Of course, the door 2 may be stopped midway depending on the amount of discharge.

On the other hand, when closing the liftable gate 1 in the open state, the fixed state of the winding shaft 5a of the opening / closing device 5 is released. When the fixed state is released, the constraint on the forward / reverse rotation of the winding shaft 5a is released, and the forward / reverse rotation is enabled. Since the door body 2 which is in a substantially upside-down state at its highest position has a force acting in a descending direction due to its own weight, when the winding shaft 5a is in a state in which it can rotate forward and backward, the guide is gradually guided. Start descending along 3.

The roller 2 a at the side end of the door body 2 rolls in the guide guide 3 in the concave groove, so that the door body 2 can smoothly descend in the guide guide 3. When the door body 2 descends along the guide guide 3, the cord 8 whose tip is connected to the connecting piece 2c at the lower end of the door body 2 is rewound in association with the descent of the door body 2. In particular, when it is desired to slow down the descending speed of the door body 2 that descends, a gentle resistance force is applied to the winding shaft 5a.

The guide guide 3 is formed in an arcuate shape in the up-down direction, and the height of the door body 2 at the most upside-up position is substantially the same as or slightly exceeds the upper end of the water channel. Since it is formed along the turning trajectory of the body 2, the descending door body 2 descends while drawing an arc, and begins to close the water channel 4 from the upper side to the lower side. Then, the lower end of the door body 2 reaches the bottom surface of the water channel 4 to completely close the water channel 4. Of course, the door body 2 may be stopped midway depending on the amount of discharge.

Note that the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the spirit of the present invention. For example, in the above-described embodiment, the door body 2 has been described in the case where its side section has an arc shape, but the side section may have a polygonal shape as shown in FIG.

[0034]

[Effect of device]

 As is clear from the above description, according to the lifting type gate according to the present invention, the guide guides for vertically lifting and holding the both side ends of the door body of the gate installed in the water channel so as to be lifted up and down are provided. In addition to being formed in an arc shape, it is formed so that the height of the door body at the most upside-down position is approximately the same height as the upper end of the water channel or along the rotation trajectory of the door body that slightly exceeds it. As compared with the conventional vertical pull-up gate, the pull-up height of the gate door can be made smaller, and the gate post and guide guide of the gate can be made smaller.

Further, in the conventional radial gate, the leg portion obstructs the cross section against the flow, which is a factor of resistance to running water, but in this invention, it is structured such that it is guided and raised and lowered at both side ends of the door body. Therefore, it is possible to eliminate the need for the legs, and it is possible to eliminate the factors that obstruct the flow of the waterway due to the legs.

Furthermore, when the side section of the door body of the gate is formed into an arc shape or a polygonal shape as in the second or third aspect, the door body has a side section that is flat as compared with a flat gate. The flexural rigidity in the width direction can be increased, and the deformation in the width direction can be reduced, which is extremely useful and practical.

[Brief description of drawings]

FIG. 1 is a side sectional view of an elevating gate showing an embodiment of the present invention.

FIG. 2 is a plan view of an elevating gate showing an embodiment of the present invention.

3A and 3B are enlarged sectional views of a guide guide showing an embodiment of the present invention.

FIG. 4 is a side sectional view of an elevating gate showing another embodiment of the present invention.

[Explanation of symbols]

 1 Lifting Gate 2 Door 2a Roller 2b Watertight Material 2c Coupling Piece 3 Guide Guide 4 Water Channel 5 Opening / Closing Device 5a Winding Shaft 5b Manual Handle 6 Mounting Table 7 Management Passage 8 Rope 9 Support Roller

Claims (3)

[Scope of utility model registration request] 1. A guide body for vertically holding and guiding both side ends of a door body of a gate which is vertically installed in a water channel is formed in an arc shape in the vertical direction, and the door body in a substantially upside-up position. An elevation gate characterized in that it is formed along a pivotal locus of the door body such that the height of the door is approximately the same as or slightly exceeds the upper end of the water channel. 2. The elevating gate according to claim 1, wherein a side wall of the door body, which is guided and held by the guide guide so that both ends thereof can be raised and lowered, is formed in an arcuate side section. 3. The elevating gate according to claim 1, wherein a side wall of the door body, which is guided and held by the guide guide so that both side ends thereof are vertically movable, has a polygonal cross section.