Auxiliary system for dynamic water opening and closing of bulkhead gate

Abstract

The utility model relates to the technical field of hydroelectric facilities, in particular to a bulkhead gate flowing water opening and closing auxiliary system which comprises a support fixed to the top of a gate groove. The fixed pulley block is arranged at the top of the support; the weight box can move up and down in the door groove; the steel wire rope bypasses the fixed pulley block and is respectively connected with the weight box and the accident bulkhead gate; and the weight box positioning structure can perform height positioning on the weight box, so that the weight box cannot fall off. According to the bulkhead gate dynamic water opening and closing auxiliary system, the load borne by the winch lifting gate can be effectively shared through the weight box, then the accident bulkhead gate can be opened and closed under the dynamic water condition, the accident bulkhead gate can meet the gate opening and closing requirements under various conditions, and effective guarantee is provided for flood prevention and flood control. And through cooperation of the limiting plate and the positioning beam, height positioning of the weight box is achieved, and falling of the weight box is prevented. The weight box is lifted to a certain height through the chain block, the positioning beam can be easily taken down, and normal opening and closing of the gate are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydropower facilities, in particular to a dynamic water opening and closing auxiliary system for repairing a gate. Background Art

[0002] The sand flushing tunnel of a hydropower plant dam is usually equipped with a working gate and an emergency inspection gate. The working gate is a hydraulically operated arc gate (with dynamic water opening and closing function), and the emergency inspection gate is a gate-type flat sliding gate, which mainly relies on a platform winch for start and stop operations to achieve the closing and opening of the gate to cut off the water flow (without dynamic water opening and closing function), so as to achieve the purpose of working maintenance of the sand flushing tunnel, inspection of the tunnel hydraulic structures, and adjustment of the reservoir water level.

[0003] However, when a sudden flood occurs and the water level in the reservoir rises rapidly, the working gate of the sand flushing tunnel fails and cannot be put into use normally, or when the hydraulic structure in the sand flushing tunnel is inspected and work is carried out, the sand flushing tunnel accident inspection gate needs to be closed / opened under dynamic or static water conditions, but the existing accident inspection gate cannot be opened and closed under dynamic water conditions. Therefore, the present invention provides an auxiliary system for opening and closing the inspection gate with dynamic water to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide a maintenance gate dynamic water opening and closing auxiliary system to solve the problem that the existing emergency maintenance gate cannot be opened and closed under dynamic water conditions proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides a maintenance gate water dynamic opening and closing auxiliary system, including a support fixed to the top of the gate slot;

[0006] A fixed pulley block is arranged on the top of the support;

[0007] A counterweight box that can move up and down in the door slot;

[0008] A steel wire rope passes through the fixed pulley block and is respectively connected to the counterweight box and the emergency maintenance gate;

[0009] The counterweight box positioning structure can perform height positioning on the counterweight box so that the counterweight box cannot fall; the counterweight box positioning structure includes a limit plate and a positioning beam, the limit plate is arranged on the side wall of the counterweight box, the positioning beam is movably placed on the top of the door slot, and the bottom of the limit plate can be against the positioning beam.

[0010] Preferably, it further comprises a lifting device, which is detachably connected to the counterweight box and is used to lift the counterweight box.

[0011] Preferably, the lifting device is a hand chain hoist, and the counterweight box is provided with a lifting lug that cooperates with the lower hook of the hand chain hoist.

[0012] Preferably, the support is provided with a hanging ear that cooperates with the upper hook of the hand winch.

[0013] Preferably, it further comprises a movable pulley block, wherein the movable pulley block is arranged on the top of the emergency maintenance gate, and the steel wire rope passes around the movable pulley block.

[0014] Preferably, the supports and counterweight boxes are two symmetrically arranged, a fixed pulley block is provided on the top of each support, each counterweight box is connected to the emergency maintenance gate via two steel ropes, and each counterweight box is provided with a counterweight box positioning structure.

[0015] Preferably, each of the counterweight boxes is provided with limit plates on two opposite sides, and each of the counterweight boxes is configured with two positioning beams, and the height positioning of the counterweight box can be released by removing the positioning beams.

[0016] Preferably, the steel wire rope passes through the fixed pulley block and the movable pulley block, one end of which is connected to the counterweight box, and the other end of which is connected to the support. By setting the fixed pulley and the counterweight box, a greater vertical pulling force can be provided for the gate.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In the dynamic water opening and closing auxiliary system of the maintenance gate, the counterweight box can effectively share the load borne by the hoist to lift the gate, so as to realize the opening and closing of the accident maintenance gate under dynamic water conditions, so that the accident maintenance gate can meet the gate opening and closing requirements under various conditions, and provide effective protection for flood control and flood prevention. The system adopts a counterweight box positioning structure, and through the cooperation of the limit plate and the positioning beam, the height positioning of the counterweight box is realized to prevent it from falling. At the same time, in order to facilitate the removal of the positioning beam, the system is also equipped with a lifting device, such as a hand winch. By lifting the counterweight box to a certain height with the hand winch, the positioning beam can be easily removed to realize the normal opening and closing of the gate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the maintenance gate dynamic water opening and closing auxiliary system after installation of the present invention;

[0020] Figure 2 It is a side view structural schematic diagram of the maintenance gate dynamic water opening and closing auxiliary system after installation of the present invention;

[0021] Figure 3 for Figure 1 A magnified view of the structure of part A;

[0022] Figure 4 for Figure 2 The structure of the middle C part is enlarged;

[0023] Figure 5 for Figure 1 A magnified view of the structure of part B;

[0024] Figure 6 This is a structural diagram of the counterweight box.

[0025] The meaning of each number in the figure is:

[0026] 1. Support; 2. Gate slot; 3. Fixed pulley block; 4. Counterweight box; 5. Wire rope; 6. Emergency maintenance gate; 7. Winch; 8. Limit plate; 9. Positioning beam; 10. Hand hoist; 11. Lifting eye; 12. Hanging eye; 13. Movable pulley block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The utility model provides a maintenance gate water dynamic opening and closing auxiliary system, such as Figure 1-Figure 6 As shown, it includes: a support 1, fixed to the top of the door slot 2; a fixed pulley block 3, arranged at the top of the support 1; a counterweight box 4, which can move up and down in the door slot 2; a wire rope 5, which passes around the fixed pulley block 3 and is respectively connected to the counterweight box 4 and the emergency maintenance gate 6; a counterweight box positioning structure, which can perform height positioning on the counterweight box 4 so that the counterweight box 4 cannot fall.

[0029] Specifically, the support 1 and the counterweight box 4 in this embodiment are both symmetrically arranged, and each support 1 is provided with a fixed pulley block 3 on the top, and each counterweight box 4 is connected to the emergency maintenance gate 6 through two steel wire ropes 5, and each counterweight box 4 is provided with a counterweight box positioning structure. When the maintenance gate dynamic water opening and closing auxiliary system in this embodiment does not work, the counterweight box positioning structure positions the counterweight box 4 at a high level, and the counterweight box 4 cannot fall. Because the emergency maintenance gate 6 is subjected to the impact pressure of the water flow under the dynamic water condition, the winch 7 not only needs to bear the weight of the gate when lifting the gate, but also needs to bear the impact pressure of the water flow, causing the load borne by the winch 7 to be too large. Therefore, under normal circumstances, the emergency maintenance gate 6 cannot be opened and closed under the dynamic water condition. The maintenance gate dynamic water opening and closing auxiliary system in this embodiment can realize the opening and closing of the accident maintenance gate 6 under dynamic water conditions, and the counterweight box 4 can effectively share the load borne by the hoist 7 to lift the gate, thereby realizing the opening and closing of the accident maintenance gate 6 under dynamic water conditions, so that the accident maintenance gate 6 can meet the gate opening and closing requirements under various conditions, providing effective protection for flood control and flood prevention. It should be noted that the gate opening and closing operation can only be carried out after the counterweight box positioning structure releases the height positioning of the counterweight box 4. After the gate is completely closed, the counterweight box positioning structure will perform height positioning on the counterweight box 4. The maintenance gate dynamic water opening and closing auxiliary system in this embodiment can be directly modified on the built dam facilities, and can be directly set for the dam to be built.

[0030] In some embodiments, the counterweight box positioning structure includes a limit plate 8 and a positioning beam 9, wherein the limit plate 8 is provided on the side wall of the counterweight box 4, and the positioning beam 9 is movably placed on the top of the door slot 2, and the bottom of the limit plate 8 can be against the positioning beam 9. Specifically, each counterweight box 4 is provided with a limit plate 8 on both opposite sides, and each counterweight box 4 is configured with two positioning beams 9, and the height positioning of the counterweight box 4 can be released by removing the positioning beam 9.

[0031] In some embodiments, in order to facilitate the removal of the positioning beam 9, the maintenance gate water dynamic opening and closing auxiliary system also includes a lifting device, which is detachably connected to the counterweight box 4 and is used to lift the counterweight box 4. After the counterweight box 4 is lifted to a certain height, the positioning beam 9 can be removed.

[0032] In some embodiments, the lifting device is a hand chain hoist 10, the counterweight box 4 is provided with a lifting lug 11 that matches the lower hook of the hand chain hoist 10, and the support 1 is provided with a hanging lug 12 that matches the upper hook of the hand chain hoist 10. The counterweight box 4 is lifted by the hand chain hoist 10, and then the positioning beam 9 is removed.

[0033] In some embodiments, the maintenance gate dynamic water opening and closing auxiliary system further includes a movable pulley block 13, which is arranged on the top of the emergency maintenance gate 6, and the steel wire rope 5 passes around the movable pulley block 13. Specifically, the steel wire rope 5 passes around the fixed pulley block 3 and the movable pulley block 13, one end of which is connected to the counterweight box 4, and the other end is connected to the support 1. By setting the fixed pulley, the counterweight block can provide a greater vertical pulling force for the gate.

[0034] When the maintenance gate dynamic water opening and closing auxiliary system of the utility model is in use, the maintenance gate dynamic water opening and closing auxiliary system realizes the opening and closing operation of the accident maintenance gate 6 under dynamic water conditions through the coordinated work of components such as the counterweight box 4, the fixed pulley block 3, the wire rope 5, the limit plate 8, the positioning beam 9, the hand winch 10, and the movable pulley block 13.

[0035] During normal operation, the counterweight box 4 is highly positioned and cannot fall. When the gate needs to be opened and closed, the height positioning of the counterweight box 4 must be released first. The specific operation is as follows: Use the hand winch 10 to lift the counterweight box 4 to a certain height. Remove the positioning beam 9 and release the height positioning of the counterweight box 4. After the gate is completely closed, replace the positioning beam 9 and perform height positioning on the counterweight box 4. Under dynamic water conditions, the emergency maintenance gate 6 is subjected to the impact pressure of the water flow. When the gate is raised and lowered by the winch 7, the counterweight box 4 can share part of the load, so that the gate can be opened and closed normally while bearing the impact pressure of the water flow. By setting the movable pulley block 13, the wire rope 5 bypasses the fixed pulley block 3 and the movable pulley block 13, so that the counterweight block can provide a greater vertical pulling force for the gate, further enhancing the operating performance and safety of the system.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. Maintenance gate water dynamic opening and closing auxiliary system, characterized by: include A support (1) is fixed to the top of the door slot (2); A fixed pulley block (3) is arranged on the top of the support (1); A counterweight box (4) capable of moving up and down in the door slot (2); A steel wire rope (5) passes around the fixed pulley block (3) and is respectively connected to the counterweight box (4) and the emergency maintenance gate (6); The counterweight box positioning structure is capable of positioning the height of the counterweight box (4); the counterweight box positioning structure comprises a limit plate (8) and a positioning beam (9), wherein the limit plate (8) is arranged on the side wall of the counterweight box (4), and the positioning beam (9) is movably placed on the top of the door groove (2), and the bottom of the limit plate (8) can be abutted against the positioning beam (9).

2. The maintenance gate hydraulic opening and closing auxiliary system according to claim 1 is characterized in that: It also comprises a lifting device, which is detachably connected to the counterweight box (4).

3. The maintenance gate water dynamic opening and closing auxiliary system according to claim 2 is characterized in that: The lifting device is a hand chain hoist (10), and the counterweight box (4) is provided with a lifting lug (11) that matches with the lower hook of the hand chain hoist (10).

4. The maintenance gate hydraulic opening and closing auxiliary system according to claim 3 is characterized in that: The support (1) is provided with a hanging ear (12) which matches with the upper hook of the hand chain hoist (10).

5. The maintenance gate hydraulic opening and closing auxiliary system according to claim 1 is characterized in that: It also comprises a movable pulley block (13), wherein the movable pulley block (13) is arranged on the top of the emergency maintenance gate (6), and the steel wire rope (5) passes around the movable pulley block (13).

6. The maintenance gate water dynamic opening and closing auxiliary system according to claim 1 is characterized in that: The support (1) and the counterweight box (4) are both symmetrically arranged. A fixed pulley block (3) is provided on the top of each support (1). Each counterweight box (4) is connected to an emergency maintenance gate (6) via two steel wire ropes (5). Each counterweight box (4) is provided with a counterweight box positioning structure.

7. The maintenance gate hydraulic opening and closing auxiliary system according to claim 1 is characterized by: Each of the counterweight boxes (4) is provided with limiting plates (8) on two opposite sides, and each of the counterweight boxes (4) is provided with two positioning beams (9).

8. The maintenance gate hydraulic opening and closing auxiliary system according to claim 5 is characterized by: The steel wire rope (5) passes around the fixed pulley block (3) and the movable pulley block (13), one end of which is connected to the counterweight box (4) and the other end of which is connected to the support (1).

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