JP3335340B2 - Simple sluice gate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple floodgate used for agricultural waterways and the like.

[0002]

2. Description of the Related Art Japanese Utility Model Publication No. 3-36579 discloses a water gate opening / closing device. The configuration of this device is such that the handle rod, which is vertically held in a state where the corners are elastically engaged with the engaging grooves of the holding portion and held therebetween, is rotated against the elastic force of the holding portion to engage. The engagement with the mating groove is released, and then the handle rod tilted forward from the vertical state is lifted or pushed down by the guide of the holding portion to open and close the plate-shaped valve body, and the handle rod is returned to the vertical state again. The plate-shaped valve body is kept open and closed by being returned to its original position, elastically engaging the corners with the engagement grooves, and holding the operating rod between the holding portions.
And the interlocking relationship between the sluice plate valve and the handlebar is
The plate-shaped valve body back surface middle joint and the lower end of the handle bar near the lower end of the handle bar whose lower end projection is vertically movably guided along the guide rail portion of the frame main body are integrally interlocked with a connecting tool. It is pivotal. Therefore, the opening / closing operation of the plate-shaped valve element is a forward / backward movement due to the pivoting movement of the handle rod via the connecting tool, while, when the plate-shaped valve element is unlocked from the open state or the closed state, Since the plate-shaped valve itself can swing and swing back and forth around the connecting tool as a fulcrum, the plate-shaped valve moves by sliding the edge of the water port when the handlebar is moved up and down. The rubbing resistance is inevitable. This rubbing resistance is doubled when the plate-shaped valve element is located on the upstream side with respect to the water port on the downstream side and receives water pressure.

[0003]

The problem to be solved is that the plate-shaped valve body maintains the opening and closing movement in the front-rear direction interlocking with the movement of the handlebar, and also performs the vertical movement at the time of unlocking. An object of the present invention is to provide a simple floodgate which is smooth without generating frictional resistance between the edge and the edge.

[0004]

According to the present invention, in order to solve the above-mentioned problems, a water port at the center of a lower portion of a frame main body can be opened and closed by an operation of a handle by an upstream plate-like valve interlocked with the handle. In the simple sluice gate, the frame main body holds the handle upper rod of the handle movably up and down and back and forth in the upper handle holding portion, and holds the plate-shaped valve element at a lower position facing the water port and above the water port. With the handle, the lower end of the handle lower rod integrated with the handle upper rod is mounted on a horizontal axis that is vertically movable along the left and right rails of the frame body, Near the lower end of the lower handlebar, a middle joint portion of the plate-shaped valve body at the upstream side facing the water port side is integrally and pivotally connected with a connecting tool, and the plate-shaped valve is positioned at the upper left and right sides of the upstream side. Adjustable projection can be in contact with frame body In the closed position where the handle protrudes forward and the handle swings rearward with the horizontal axis as the fulcrum and is held substantially vertically, the plate-shaped valve element moves backward and closes the water port, and the handle moves sideways. At the open position in which the plate is swung to the front with the shaft as a fulcrum, the plate-like valve moves forward to open the water port, and the vertical movement of the plate-like valve by the handle in the open position causes the front side of the handle to move forward. With the pivoting of the plate-shaped valve body about the horizontal axis as the axis of rotation due to the tip of the posture-adjusting projection coming into contact with the frame body due to the swinging, the plate-shaped valve body is controlled to the posture separated from the water port. It is characterized in that it is performed in a state where it is held.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 12 show an embodiment of a simple sluice gate according to the present invention, and show a use example in which the sluice is assembled to a weir in a waterway. Weir A of channel A
A water port 2 is formed in the center of the lower portion of the frame main body 1 assembled in 1, and the water channel A on the upstream side communicates with the flow path A2 on the downstream side of the weir A1 via the water port 2. A mounting portion 1c removably provided on the left and right rod portions 1a and 1a of the frame body 1 with bolts 1b.
Is provided with a handle holding portion 3. The handle upper portion 4b of the handle 4 is movably held in the up-down and front-rear directions in the handle holding portion 3 facing the upstream side, and a plate-shaped valve element 5 is provided upstream of the water port 2 with a water port. 2
And a lower position facing the water port 2 and an upper position above the water port 2 so as to be vertically movable.

The holding portion 3 can be locked in the holding state by elastically holding the upper portion of the upper handlebar 4b between the left and right leaf springs 3a projecting from the upper portion of the frame body 1 toward the upstream side. And the left and right leaf springs 3a
The tip is connected by a bolt 3b and a nut 3c, and by adjusting the left-right distance of the leaf spring 3a, the handle upper rod 4b
Can be increased or decreased. Bolt 3
b also serves as a stopper for preventing the handle 4 from falling forward, and between the open position where the handle 4 is prevented from falling forward by the bolt 3b and the closed position where the handle 4 is prevented from falling backward by the mounting portion 1c. Is swingable in the front-back direction. A groove-shaped engaged portion 3d is formed on the facing surfaces of the left and right leaf springs 3a so as to be able to engage with the corners 4b1 of the upper handle 4b in a substantially vertical state at the closed position.
By rotating a about the axis in a vertical state (45 degrees in the drawing), the locked state in which the corner portion 4b1 and the grooved engaged portion 3d are engaged, and the corner portion from the grooved engaged portion 3d The steering wheel can be operated in the unlocked state in which the lock relationship has been released by the release of 4b1.

The lower end of the upper handlebar 4b, which is suspended from the center of the horizontal grip portion 4a of the handle 4, is connected to the lower handlebar 4b.
The lower ends of the left and right rod portions 4c1 of the substantially gate-shaped lower handle bar 4c are connected to a pair of front and rear rail portions 6 on the left and right sides of the frame main body 1. In the vicinity of the lower ends of the left and right rods 4c1, a connecting portion 5a in the middle of the upstream side surface portion of the plate-shaped valve element 5 is connected to a pin or the like. The components 8 are integrally connected to each other. Rail part 6
The trochanter 7a is pivotally attached to the end of the horizontal shaft 7 guided by
The trochanter 7a is guided by the rail portion 6 and rolls, so that the horizontal shaft 7 moves up and down smoothly.

[0008] The plate-shaped valve element 5 is formed to be slightly larger than the water port 2, and when the handle 4 is in the closed position.
Elastic member 5b, such as rubber, attached to the downstream side surface of valve body 5
Closes the water mouth 2 by elastically close to the edge of the water mouth 2
In addition, the plate-shaped valve element 5 by the handle 4 is
When the handle 4 is in the middle and open positions except for the closed position, the elastic member 5b is separated from the edge of the water port 2 to open the water port 2 and remove the handle. 4 allows the plate-shaped valve element 5 to be moved up and down.

[0009] At the upper right and left sides of the upstream side surface of the plate-shaped valve element 5, a posture adjusting projection 5c is provided so as to project forward.
The left and right posture adjusting projections 5c face the left and right guide surfaces 1d of the frame body 1 in the front-rear direction.
Does not contact the guide surface 1d in the closed position where the water port 2 is closed and in the small open state where the water port 2 is slightly opened,
As the plate-shaped valve element 5 moves forward from the small open state to the intermediate position, the plate-shaped valve element 5 comes into contact with and comes into contact with the guide surface 1d. The protruding length of the attitude adjusting protrusion 5c is a plate-like shape having the horizontal axis 7 as a rotation axis when the tip of the attitude adjusting protrusion 5c abuts on the frame main body 1 by swinging the handle 4 forward. The rotation of the valve body 5, that is, the plate-like valve body 5 is formed so as to be controllable in a substantially vertical posture in which the entire plate-like valve body 5 is separated from the water port 2. In the middle and open positions excluding the closed position of No. 4, it is formed so as to be able to be carried out in a state where there is no rubbing resistance between the water port 2 and the edge.

The handle holder 3 is provided so as to be movable in the front-rear direction with a fixing bolt 9 with respect to the mounting portion 1c. The degree of opening / closing of the plate-shaped valve element 5 with respect to is adjustable finely. A receiving portion 10 is formed between the lower ends of the left and right rod portions 1a of the frame main body 1, and the receiving portion 10 is provided with a plate-like valve body 5 from below the frame main body 1.
Is working so that they do not fall off.

Next, the opening operation of the plate-shaped valve element 5 will be described in detail. The plate-shaped valve element 5 is pivoted forward from the closed position to the open position with the handle 4 about the horizontal axis 7 as a fulcrum. As the lifting operation is performed later, the full opening operation is performed through the following steps. First step: First, the horizontal handle 4a is turned horizontally to rotate the handle upper lever 4a around the axis (45 in the drawing).
), The engagement with the groove-shaped engaged portion 3d is released, and the locked state is released. Second stage: As the handle 4 swings from the closed position to the open position, the plate-like valve element 5, which is interlocked with the handle 4 via the handle 4 and the joint 5a, is opened from the closed state to the small open state. Since the plate-shaped valve element 5 in the small open state receives the water pressure, the lower part of the valve element comes into contact with the edge of the water port 2 and the upper part of the valve element is in a forwardly inclined state separated from the edge of the water port 2. Become. Third stage: When the handle 4 swings to the intermediate position, the tip of the attitude adjusting projection 5c abuts the guide surface 1d. (See FIG. 7) Fourth stage: As the handle 4 swings to the open position after passing the intermediate position, the plate-shaped valve element 5 is brought into the posture adjusting projection 5c.
When the distal end abuts on the guide surface portion 1d, the lower part of the valve element is rotated about the horizontal axis 7 as a rotation axis so as to be separated from the edge of the water port 2, and the entire valve element is substantially vertically separated from the water port 2. Is controlled. Fifth stage: When the handle 4 in the open position is pulled up as it is, the plate-shaped valve element 5 moves upward to the upper position while maintaining a substantially vertical posture away from the water port 2, and the water port 2 moves to a fully opened state. Sixth stage: When the handle 4 is swung rearward and locked again in the engaged state with the grooved engaged portion 3d, the plate-like valve element 5
Is locked at the upper position with the water port 2 fully opened.
(See Fig. 12)

The closing of the water port 2 is performed by performing the above steps in reverse order. Needless to say, the degree of opening or closing of the water port 2 by the plate-shaped valve element 5 can be freely adjusted by appropriately changing the vertical position of the plate-shaped valve element 5 with the handle 4.

FIG. 13 exemplifies another embodiment of the simple sluice gate according to the present invention, and shows an embodiment for the case where the flow path of the weir in the water channel is deep. Since the configuration is basically the same as that of the embodiment of FIG. 1, the description of the common configuration will be omitted by applying the same reference numerals, and different configurations will be described. Left and right rods 1 in frame body 1
A connecting rod 11 having a height corresponding to the depth of the water channel A is connected to an upper part of the connecting rod 11 with bolts 1e and nuts 1f, and an upper end of the connecting rod 11 is formed so that a mounting portion 1c can be mounted with a bolt 1b. As described above, by appropriately setting the height of the connecting rod 11, it is possible to cope with water channels A having various depths. Similarly, the upper handlebar 4a of the handle 4 is replaced with a handlebar having a predetermined length. Or, it will be added.

[0014]

A. Effects of the Invention According to the first aspect, the plate-shaped valve body slides between the edge of the water port and the vertical movement by the handle rod at the time of unlocking, while maintaining the front-rear opening and closing movement interlocked with the movement of the handle rod. It is smooth without generating frictional resistance. Therefore, it is easy to raise and lower the plate-shaped valve element by the handle with the water port opened.

[Brief description of the drawings]

FIG. 1 is a front view illustrating one embodiment of a simple floodgate according to the present invention.

FIG. 2 is a longitudinal sectional view of FIG. 1 (2)-(2).

FIG. 3 is a (3)-(3) longitudinal sectional view of FIG. 1;

FIG. 4 is a longitudinal sectional view of (4)-(4) of FIG.

FIG. 5 is a perspective view partially cut away.

FIG. 6 is an exploded perspective view.

FIG. 7 is a partially enlarged longitudinal sectional view in a state where a water port is opened by swinging a handle forward to an intermediate position.

FIG. 8 is a partially cutaway plan view of the same state.

FIG. 9 is a transverse sectional view of the same state.

FIG. 10 is a partially enlarged longitudinal sectional view in a state where a water port is opened by swinging a handle forward to an open position.

FIG. 11 is a longitudinal sectional view showing a state in which a handle is pulled up and a water port is fully opened.

FIG. 12 is a longitudinal sectional view of a state in which the handle is rocked rearward to lock the water port in a fully opened state.

FIG. 13 is a partially exploded perspective view illustrating another embodiment of the simple sluice gate of the present invention.

[Explanation of symbols]

 A Waterway A1 Weir A2 Channel 1 Frame body 1a Left and right rods 1b, 1e Bolt 1f Nut 1c Mounting part 1d Guide surface part 2 Water port 3 Handle holding part 3a Leaf spring 3b Bolt 3c Nut 3d Groove-shaped engaged part Reference Signs List 4 handle 4a horizontal grip 4b upper handle 4b 1 corner 4c lower handle 4c 1 left and right rod 5 plate-shaped valve element 5a joint 5b elastic member 5c attitude adjusting protrusion 6 rail 7 horizontal axis 7a roll Child 8 Connector 9 Fixing bolt 10 Receiving part 11 Connecting rod

Claims (1)

(57) [Claims] 1. A simple floodgate in which a handle is operated to open and close a water port at a lower center of a frame main body with an upstream plate-shaped valve body interlocked with the handle, wherein the frame main body is provided with a handle at an upper handle holding portion. The handle upper rod is vertically movably held up and down, and the plate-shaped valve body is vertically movable between a lower position facing the water port and an upper position above the water port. The lower end of the handle lower rod integrated with the rod is pivotally mounted on a horizontal axis that is vertically movable along the left and right rails of the frame main body, and near the lower end of the handle lower rod to the water port side of the plate-shaped valve body. The middle part of the opposing upstream side surface is pivotally connected integrally with the joint with a connector, and the plate-shaped valve element has front projections for posture adjustment on the upper left and right sides of the upstream side so that it can contact the frame main body. And the handle is set with the horizontal axis as the fulcrum. In the closed position in which the plate-shaped valve body is moved backward to close the water port in the closed position where the handle is swung to the substantially vertical position, and in the open position in which the handle is swung forward with the horizontal axis as a fulcrum, the plate-shaped valve body is used. Is moved forward to open the water port, and the vertical movement of the plate-shaped valve body by the handle at the open position causes the front end of the posture adjusting projection to abut on the frame body as the handle swings forward. A simple floodgate characterized in that the rotation is carried out in a state where the plate-shaped valve element is separated from the water port by the rotation of the plate-shaped valve element with the horizontal axis as the rotation axis.