CN202519633U - Automatic gate valve opening and closing device for water intake tank of mountain river channel - Google Patents

Abstract

The utility model discloses an automatic gate valve opening and closing device for a water intake tank of a mountain river channel. The device comprises a water intake tank, wherein A scour outlet IS formed in the side wall of the bottom of the water intake tank; the scour outlet is provided with a gate plate; the gate plate is connected with one end of a pulley block on the side wall of the water intake tank through a sling on the top of the gate plate; and the other end of the pulley block is connected with a floating ball on the upper side of the pulley block through a rope. Due to the adoption of the technical scheme, the automatic gate valve opening and closing device automatically opens the gate plate in the floating period by means of the buoyancy of the floating ball, and water is automatically drained to scour sand. The phenomena that subsequent special personnel carry out the operation for opening and closing gate valves and fine maintenance and management of equipment are prevented, a great amount of investment of manpower and material resources is saved, and the operation safety of operation personnel is greatly improved. The automatic gate valve opening and closing device is relatively simple in structure, can be produced in the factories according to finalized designs, is convenient to manufacture and assemble, and is lower in cost and maintenance cost.

Description

An automatic gate valve opening and closing device for water intake pools in mountainous areas

Technical field:

The utility model belongs to the technical field of water conservancy engineering, in particular to an automatic gate valve opening and closing device for a water intake pool in a mountainous area. the

Background technique:

In the construction of water conservancy projects in sandy rivers in mountainous areas, the silt in the water intake pond is relatively serious, so the silt problem in the water intake pond is often used as a decisive factor for the rationality of the project. Existing sand washing measures are to provide sand washing holes on the side wall of the water intake tank, and to equip professional sand washing equipment. Although the structure of the water intake pool is simple and the production cost is low, there are the following defects: after each flood, special personnel need to operate the equipment to clean the water intake pool, which is frequently operated and the cleaning cost is high; During the flood period with heavy rain and heavy rain, the safety of personnel is poor; the operation and management of equipment are more troublesome. Therefore, such sand washing measures can no longer be adapted to the water intake ponds built in mountainous rivers with variable climates, cannot meet the operation requirements of modern water conservancy projects, and cannot meet the requirements of high quality and low maintenance of the project. the

Contents of the invention

The technical problem to be solved by the utility model is to provide an automatic gate valve opening and closing device for water intake pools in mountainous rivers, which is easy to operate, strong in applicability, can save cleaning costs and improve work safety, so as to overcome the shortcomings of the prior art. the

The utility model is constituted as follows: it includes a water intake tank, a sand flushing hole is arranged on the side wall of the bottom of the downstream side of the water intake pool, and a flashboard is arranged on the sand flushing hole, and the flashboard is connected to the sling at the top and placed One end of the block of pulleys on the side wall of the water intake pool is connected, and the other end of the block of pulleys is connected with a floating ball arranged above the block of pulleys through a rope. the

In the above-mentioned automatic gate valve opening and closing device for the water intake pool of a mountainous river course, L-shaped steel plates fixed on the side walls of the water intake pool are respectively arranged on both sides of the gate plate. the

In the aforementioned automatic gate valve opening and closing device for water intake pools in mountainous areas, the pulley block is arranged in a rectangular box fixed on the side wall of the water intake pool. the

In the aforementioned automatic gate valve opening and closing device for water intake pools in mountainous areas, the sling is provided with an ascending limit clamp. the

In the aforesaid automatic gate valve opening and closing device for water intake pools in mountainous areas, the rope is provided with a fall-back limiting chuck. the

Due to the adoption of the above-mentioned technical scheme, the utility model utilizes the buoyancy of the floating ball to automatically open the gate during the flood period, thereby realizing automatic water discharge and sand washing. Compared with the sand washing measures of traditional electromechanical or manual opening and closing gate valves, it not only saves the subsequent operation of special personnel to open and close gate valves, fine maintenance and management of equipment, saves a lot of investment in manpower and material resources, but also greatly improves the safety of operators. sex. In addition, the utility model has a relatively simple structure, can be produced in a factory, is convenient to manufacture and install, and has relatively low manufacturing and maintenance costs. the

Description of drawings:

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the structural representation when the utility model is installed;

Fig. 3 is the structural representation of flashboard;

The accompanying drawings are marked as: 1-water intake tank, 2-sand flushing hole, 3-gate, 4-sling, 5-pulley block, 6-rope, 7-floating ball, 8-L-shaped steel plate, 9-rectangular box , 10-rising limit chuck, 11-falling limit chuck. the

Detailed ways:

Below in conjunction with accompanying drawing and embodiment the utility model is described further. the

Embodiment of the present utility model: the structure of the present utility model is as shown in Figure 1, and it comprises the water intake pool 1 (as shown in Figure 2 ) that is conventionally built on the sandy river bank in mountainous area, and the side wall at the bottom of the water intake pool 1 Open the sand-washing hole 2 on the sand-washing hole 2, install the gate 3 on the sand-washing hole 2, connect the sling 4 with the top of the gate 3, and then connect the other end of the sling 4 with the pulley block 5 (the pulley block 5 According to the actual weight of the gate 3, the combined structure of the existing movable pulley or/and the fixed pulley can be adopted; and in order to avoid long-term underwater operation that will cause corrosion and affect the operation, the pulley block 5 can be made of plastic, but the average density of the pulley block should be Not less than the density of water, to prevent the block of pulleys from floating in the water.) is connected at one end, above the block of pulleys 5, a floating ball 7 is installed, and the other end of the block of pulleys 5 is connected with the floating ball 7 by a rope 6. In order to better fix the gate 3 when closed, an L-shaped steel plate 8 fixed on the side wall of the water intake tank 1 can be installed on both sides of the gate 3 (the structure of the L-shaped steel plate 8 is shown in Figure 3). In order to protect block pulley 5 better, prolong the life-span of the present utility model, a rectangular box 9 (rectangular box 9 can adopt plastics to make) can be fixedly installed on the water intake pool 1 sidewall, and block pulley 5 is installed in the rectangular box 9. In order to limit the rising range of the flashboard 3 and facilitate its opening again, an ascending limit clamp 10 can be installed on the sling 4 (the ascending limit clamp 10 is set on the sling 4, and its size is larger than that of the bottom of the rectangular box 9 through the aperture of the sling 4). In order to limit the falling range of the floating ball 7 and help it to float again, a fall-back limit clip 11 can be installed on the rope 6 (that is, the fall-back limit clip 11 is set on the rope 6, and its size is larger than that of the rectangular box 9. 6 pore size). the

When the utility model is in use: the water intake pool 1 operates at a low water level in the dry season, the floating ball 7 does not generate buoyancy, the tension of the rope 6 connecting the floating ball 7 is zero, and the gate 3 is in a closed state; 7 is flooded to generate buoyancy, so that the gate 3 is opened by the upward pulling force, and the sand flushing hole 2 is automatically discharged to flush the sand. The utility model makes full use of the labor-saving working principle of the pulley block 5 to realize the opening of the heavy gate 3 by the small floating ball 7 . The utility model is suitable for other water conservancy projects that require automatic drainage. the

The implementation of the utility model is not limited to the above examples, and various changes made without departing from the gist of the utility model all belong to the protection scope of the utility model. the

Claims (5)

1. An automatic gate valve opening and closing device for a water intake pool in a mountainous river, comprising a water intake pool (1), and a sand flushing hole (2) is provided on the side wall at the bottom of the downstream side of the water intake pool (1), characterized in that: The sand hole (2) is provided with a ram (3), and the ram (3) is connected to one end of the pulley block (5) placed on the side wall of the water intake tank (1) through a sling (4) connected to the top of the ram (3). The other end of (5) is connected with the floating ball (7) that is located at the pulley block (5) top by rope (6). 2. The automatic gate valve opening and closing device for water intake pools in mountainous rivers according to claim 1, characterized in that: L-shaped steel plates ( 8). 3. The automatic gate valve opening and closing device for water intake pools in mountainous rivers according to claim 1, characterized in that: the pulley block (5) is set in a rectangular box (9) fixed on the side wall of the water intake pool (1) . 4. The automatic gate valve opening and closing device for water intake pools in mountainous rivers according to claim 3, characterized in that an ascending limit clamp (10) is provided on the sling (4). 5. The automatic gate valve opening and closing device for water intake pools in mountainous rivers according to claim 3, characterized in that: the rope (6) is provided with a fall-back limit chuck (11).

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