Gate opening and closing limiting structure

Abstract

The utility model relates to the technical field of hydraulic engineering, in particular to a gate opening and closing limiting structure which comprises a gate frame, vertical plates fixedly connected to the top ends of the left side and the right side of the top of the gate frame, output motors fixedly connected to the outer end faces of the vertical plates, winding rollers fixedly connected to the output ends of the output motors, and steel cables fixedly connected to the surfaces of the winding rollers. Holes are formed in the left side and the right side of the center in the gate frame. Through design cooperation, after a steel cable is put down a gate plate, a second waterproof contact at the bottom of the gate plate makes contact with a first waterproof contact below the inner side of a gate frame, a movable clamping block moves towards a fixed clamping block, and the steel cable is limited to the inner side of the fixed clamping block and is clamped and fixed by the movable clamping block and the fixed clamping block at the same time; and the steel cable connected with the flashboard can be limited, so that the flashboard can be positioned during maintenance and overhaul, and routine inspection and maintenance work can be conveniently carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy projects, in particular to a gate opening and closing limit structure. Background Technique

[0002] The gate of a water conservancy project is a mechanical device used to regulate and control water flow, and it is a movable structure that can be installed in water conservancy facilities such as rivers, channels, reservoirs, and hydropower stations;

[0003] It is found that the publication (announcement) number: CN221320851 discloses a gate opening and closing structure. In this technology, it is disclosed that "a gate opening and closing structure includes a gate frame, a gate body is slidably connected inside the gate frame, a filter screen plate slidably connected inside the gate frame is arranged at the front end of the gate body, and a collection net frame slidably connected inside the gate frame is fixedly connected to the front end of the filter screen plate. Both ends of the upper surface of the gate frame are fixedly connected with baffles, and a first winding roller and a second winding roller are arranged between the two baffles. Both ends of the first winding roller are fixedly connected with a first rotating rod that penetrates through the corresponding baffle and is rotationally connected with the penetrating part through a bearing for limit, and both ends of the second winding roller are fixedly connected with a second rotating rod that penetrates through the corresponding baffle and is rotationally connected with the penetrating part through a bearing for limit. The gate opening and closing structure of the utility model can lower the filter screen plate while the gate body is opened, so as to intercept garbage and other sundries in the water, avoid flowing into the external river channel and causing pollution to the external river channel, and is relatively practical";

[0004] When the existing gate is in use, the lifting of the gate is generally controlled by a motor, which may cause the gate to exceed the designed stroke range, resulting in the gate body colliding with the gate slot or other structures, causing equipment damage. At the same time, the risk of operation errors increases. Without a limit indication, the operator is more likely to make operation errors, resulting in improper opening and closing of the gate.

[0005] To solve the above problems, a gate opening and closing limit structure is proposed in this application. Content of the Utility Model

[0006] To solve the problems raised in the above background technique. The utility model provides a gate opening and closing limit structure, which has the characteristic of being able to limit the steel cable connecting the gate panel.

[0007] To achieve the above object, the utility model adopts the following technical solutions: A gate opening and closing limit structure, including a gate frame. On the top of the left and right sides of the gate frame, vertical plates are fixedly connected. On the outer end faces of the vertical plates, output motors are fixedly connected. At the output ends of the output motors, winding rollers are fixedly connected. On the surfaces of the winding rollers, steel cables are fixedly connected. One end of the steel cable far away from the winding roller is fixedly connected to a gate plate. On the left and right sides of the center inside the gate frame, holes are opened. Below the inside of the gate frame, a groove is opened. At the bottom of the groove below the inside of the gate frame, a first waterproof contact is fixedly connected. At the bottom of the gate plate, a convex plate is fixedly connected. At the bottom of the convex plate, a second waterproof contact is fixedly connected. In the middle of the top of the gate frame, a controller is fixedly connected. On the left and right sides of the controller on the top of the gate frame, fixed clamping blocks are fixedly connected. On the top of the left and right end faces of the gate frame, a double-shaft motor is fixedly connected. At the output end of the double-shaft motor, a threaded rod is fixedly connected. On the outside of the threaded rod, a moving block is spirally connected. On the top of the moving block, a connecting rod is fixedly connected. One end of the connecting rod far away from the moving block is fixedly connected to a movable clamping block. On the left and right sides of the top of the gate frame, sliding grooves are opened.

[0008] As a preferred embodiment of the gate opening and closing limit structure of the utility model, the inner edge of the gate frame contacts the edge of the gate plate. The steel cable passes through the holes at the top of the gate frame and slides. The top of the first waterproof contact contacts the bottom of the second waterproof contact. The outside of the convex plate contacts the lower part inside the gate frame. The end of the threaded rod far away from the double-shaft motor is rotatably connected to the upper left and right sides inside the gate frame. The outside of the moving block contacts the upper part inside the gate frame. The outside of the connecting rod slides inside the upper part of the gate frame, which can limit the steel cable connecting the gate plate, helping to position during the maintenance and repair of the gate plate and facilitating routine inspection and maintenance work.

[0009] As a preferred embodiment of the gate opening and closing limit structure of the utility model, both the first waterproof contact and the second waterproof contact are electrically connected to the controller, and the controller is electrically connected to the double-shaft motor. The precondition for the controller to control the double-shaft motor to start is that the top of the first waterproof contact touches the second waterproof contact, which can immediately control the double-shaft motor to start when the second waterproof contact at the bottom of the gate plate touches the first waterproof contact, so that the movable clamping block and the fixed clamping block clamp and fix the steel cable.

[0010] As a preferred embodiment of the gate opening and closing limit structure of the utility model, the number of grooves below the inside of the gate frame is two groups, and the grooves are distributed on the left and right sides below the inside of the gate frame. The number and distribution position of the convex plates are both matched with the number and distribution position of the grooves, and the cross-sectional shape of the convex plate is matched with the cross-sectional shape of the groove, for the convex plate to drive the second waterproof contact to insert into the first waterproof contact inside the groove.

[0011] Preferably, as a gate opening and closing limit structure of the present utility model, a dug groove is provided above the inner part of the gate frame, and the threaded rod and the moving block are both located in the dug groove above the inner part of the gate frame. The width, quantity, and distribution position of the sliding grooves at the top of the gate frame are all matched with the cross-sectional diameter, quantity, and distribution position of the connecting rod, so that the threaded rod and the moving block can be hidden inside the gate frame, avoiding the exposure of the threaded rod and the moving block outside and increasing the risk of damage.

[0012] Preferably, as a gate opening and closing limit structure of the present utility model, the fixed clamping block and the movable clamping block are the same in quantity and shape, and the opening directions of the fixed clamping block and the movable clamping block are opposite. Limiting grooves extending from top to bottom are provided on the inner sides of the fixed clamping block and the movable clamping block, and the cross-sectional diameter of the limiting grooves is matched with the cross-sectional diameter of the steel cable. By bringing the movable clamping block into contact with the fixed clamping block, the purpose of clamping the steel cable is achieved.

[0013] Preferably, as a gate opening and closing limit structure of the present utility model, the double-shaft motor can be controlled by the controller and also by the remote control terminal, and the double-shaft motor can rotate forward and backward, ensuring the safe opening and closing of the gate plate within the specified stroke range, preventing the excessive movement of the gate caused by operational errors or other reasons, thereby avoiding structural damage or accidents.

[0014] The present utility model has the following beneficial effects:

[0015] For the gate opening and closing limit structure designed by the present utility model, through design cooperation, after the gate plate is lowered by the steel cable, the second waterproof contact at the bottom of the gate plate contacts the first waterproof contact below the inner side of the gate frame. At this time, the double-shaft motor drives the threaded rod with double output ends to rotate, causing the movable clamping block to move towards the position of the fixed clamping block, and the steel cable is restricted inside the fixed clamping block and clamped by the movable clamping block and the fixed clamping block simultaneously to be fixed. The steel cable connecting the gate plate can be limited, which helps to locate during the maintenance and repair of the gate plate, facilitating routine inspection and maintenance work. At the same time, the double-shaft motor can also be controlled by an external remote control terminal to ensure the safe opening and closing of the gate plate within the specified stroke range, preventing the excessive movement of the gate caused by operational errors or other reasons, thereby avoiding structural damage or accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the overall structure of the gate frame of the present utility model;

[0019] Figure 3 This is a schematic three-dimensional structure diagram of the gate plate of the present utility model being longitudinally flipped by 180 degrees;

[0020] Figure 4 This is a schematic top-sectional structure diagram of the gate frame of the present utility model.

[0021] Legend:

[0022] 1. Gate frame; 2. Vertical plate; 3. Output motor; 4. Winding roller; 5. Steel cable; 6. Gate plate; 7. Fixed clamp block; 8. Biaxial motor; 9. Movable clamp block; 10. Controller; 11. Hole; 12. Groove; 13. First waterproof contact; 14. Slide groove; 15. Convex plate; 16. Second waterproof contact; 17. Threaded rod; 18. Moving block; 19. Connecting rod. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] As Figures 1 to 4 shown;

[0026] A gate opening and closing limit structure includes a gate frame 1.

[0027] In this implementation: It is found that the publication (announcement) number: CN221320851 discloses a gate opening and closing structure. To solve the existing problems in this prior art, as disclosed in the above background art, "When the existing gate is in use, it is generally controlled by a motor to lift and lower the gate, which may cause the gate to exceed the designed stroke range, resulting in collisions between the gate body and the gate slot or other structures, causing equipment damage. At the same time, the risk of operation errors increases. Without a limit indication, it is easier for operators to make operation errors, resulting in improper opening and closing of the gate." In combination, this problem is obviously an existing and difficult-to-solve problem. Therefore, to solve this technical problem, a controller 10 and a movable clamp block 9 are added to this application document;

[0028] Furthermore:

[0029] As Figures 1 to 4 shown:

[0030] Combined with the above content: A gate opening and closing limit structure includes a gate frame 1. On the top of the left and right sides of the gate frame 1, vertical plates 2 are welded. The outer end faces of the vertical plates 2 are fixed with an output motor 3 by bolts. The output end of the output motor 3 penetrates through the inside of a winding roller 4 and is welded and fixed. One end of a steel cable 5 is welded to the surface of the winding roller 4. The end of the steel cable 5 away from the winding roller 4 is welded to a gate plate 6. Holes 11 are opened on the left and right sides at the center inside the gate frame 1. A groove 12 is opened below the inner side of the gate frame 1. A first waterproof contact 13 is arranged at the bottom of the groove 12 below the inner side of the gate frame 1. A convex plate 15 is welded to the bottom of the gate plate 6. A second waterproof contact 16 is arranged at the bottom of the convex plate 15. A controller 10 is fixed to the middle of the top of the gate frame 1 by bolts. Clamping blocks 7 are welded and fixed on both the left and right sides of the controller 10 at the top of the gate frame 1. A dual-axis motor 8 is fixed to the top of the left and right end faces of the gate frame 1 by bolts. The output shafts at the output ends of the dual-axis motor 8 penetrate through the inside of a threaded rod 17 and are welded and fixed. The outside of the threaded rod 17 penetrates through the inside of a moving block 18 and is helically engaged with the internal thread inside the moving block 18. A connecting rod 19 is welded to the top of the moving block 18. The end of the connecting rod 19 away from the moving block 18 is welded to a movable clamping block 9. Chute grooves 14 are opened on the left and right sides at the top of the gate frame 1. The inner edge of the gate frame 1 contacts the edge of the gate plate 6. The steel cable 5 penetrates through the holes 11 at the top of the gate frame 1 and slides. The top of the first waterproof contact 13 contacts the bottom of the second waterproof contact 16. The outside of the convex plate 15 contacts the lower inner side of the gate frame 1. The end of the threaded rod 17 away from the dual-axis motor 8 is rotatably connected to the upper left and right sides inside the gate frame 1. The outside of the moving block 18 contacts the upper inside of the gate frame 1. The outside of the connecting rod 19 is slidably connected to the upper inside of the gate frame 1.

[0031] In this embodiment: The steel cable 5 connecting the gate plate 6 can be limited, which helps to position during the maintenance and repair of the gate plate 6 and facilitates routine inspection and repair work.

[0032] In an alternative embodiment: Both the first waterproof contact 13 and the second waterproof contact 16 are electrically connected to the controller 10, and the controller 10 is electrically connected to the dual-axis motor 8. The precondition for the controller 10 to control the dual-axis motor 8 to start is that the top of the first waterproof contact 13 touches the bottom of the second waterproof contact 16.

[0033] In this embodiment: When the second waterproof contact 16 at the bottom of the gate plate 6 touches the first waterproof contact 13, the controller 10 can immediately control the dual-axis motor 8 to start, so that the movable clamping block 9 and the fixed clamping block 7 clamp and fix the steel cable 5.

[0034] In an alternative embodiment: The number of grooves 12 below the inner side of the gate frame 1 is two groups, and the grooves 12 are distributed on the left and right sides below the inner side of the gate frame 1. The number and distribution positions of the convex plates 15 are both matched with the number and distribution positions of the grooves 12, and the cross-sectional shape of the convex plate 15 is matched with the cross-sectional shape of the groove 12.

[0035] In this embodiment: The convex plate 15 drives the second waterproof contact 16 to insert into the first waterproof contact 13 in the groove 12.

[0036] In an alternative embodiment: A dug-out groove is provided above the inside of the gate frame 1, and the threaded rod 17 and the moving block 18 are both located in the dug-out groove above the inside of the gate frame 1. The width, number, and distribution position of the sliding groove 14 at the top of the gate frame 1 match the cross-sectional diameter, number, and distribution position of the connecting rod 19.

[0037] In this embodiment: The threaded rod 17 and the moving block 18 can be hidden inside the gate frame 1, preventing the threaded rod 17 and the moving block 18 from being exposed outside and increasing the risk of damage.

[0038] In an alternative embodiment: The number and shape of the fixed clamping block 7 and the movable clamping block 9 are the same, and the opening directions of the fixed clamping block 7 and the movable clamping block 9 are opposite. Limiting grooves extending from top to bottom are provided on the inner sides of the fixed clamping block 7 and the movable clamping block 9, and the cross-sectional diameter of the limiting grooves matches the cross-sectional diameter of the steel cable 5.

[0039] In this embodiment: The purpose of clamping the steel cable 5 is achieved by the contact between the movable clamping block 9 and the fixed clamping block 7.

[0040] In an alternative embodiment: The dual-axis motor 8 can be controlled by the controller 10 and also by a remote control terminal, and the dual-axis motor 8 can rotate forward and backward.

[0041] In this embodiment: It can ensure the safe opening and closing of the gate plate 6 within the specified stroke range, preventing excessive movement of the gate due to operational errors or other reasons, thereby avoiding structural damage or accidents.

[0042] Among them, the controller 10 used in this specification is a common Siemens PLC controller 10 on the market, and the internal structure of the controller 10 has not been changed in this specification, so this specification will not describe it in detail.

[0043] Working principle and usage process of the utility model: When it is necessary to close the water flow, place the gate plate 6 at the inner bottom of the gate frame 1, start the output motor 3, and the output motor 3 on the outer end face of the vertical plate 2 drives the winding roller 4 to rotate. The steel cable 5 wound around the outer side of the winding roller 4 extends downward along the hole 11. At this time, without the restriction of the steel cable 5, the gate plate 6 drives the steel cable 5 to move downward by its own weight until the second waterproof contact 16 at the bottom end of the convex plate 15 at the bottom of the gate plate 6 contacts the first waterproof contact 13 inside the groove 12 at the bottom of the gate frame 1, then the controller 10 is started to control the biaxial motor 8 to start. At this time, the biaxial motor 8 drives the threaded rod 17 at the output end to rotate, and the moving block 18 outside the threaded rod 17 drives the movable clamping block 9 to move towards the fixed clamping block 7 through the connecting rod 19, and the connecting rod 19 slides along the sliding groove 14 at the top of the gate frame 1 until the limiting groove inside the movable clamping block 9 is sleeved on the surface of the steel cable 5 and stops after contacting the outer top end of the fixed clamping block 7. At this time, the steel cable 5 is clamped and fixed by the movable slider and the fixed clamping block 7, which helps to position during the maintenance and repair of the gate plate 6, facilitating routine inspection and maintenance work. At the same time, the biaxial motor 8 can also be controlled by an external remote control terminal to ensure the safe opening and closing of the gate plate 6 within the specified stroke range, preventing excessive movement of the gate due to operation errors or other reasons, thereby avoiding structural damage or accidents.

[0044] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A gate opening and closing limit structure, comprising a gate frame (1), characterized in that: The top of the gate frame (1) is fixedly connected to a vertical plate (2) on both sides, the outer end surface of the vertical plate (2) is fixedly connected to an output motor (3), the output end of the output motor (3) is fixedly connected to a winding roller (4), the surface of the winding roller (4) is fixedly connected to a steel cable (5), the end of the steel cable (5) away from the winding roller (4) is fixedly connected to a gate plate (6), the gate frame (1) is provided with holes (11) on both sides of the center, the gate frame (1) is provided with a groove (12) on the lower inner side, the first waterproof contact (13) is fixedly connected to the bottom of the groove (12) on the lower inner side of the gate frame (1), the bottom of the gate plate (6) is fixedly connected to a convex plate (15), the convex plate (15) is fixedly connected to the bottom of the gate plate (6), 5) A second waterproof contact (16) is fixedly connected to the bottom, a controller (10) is fixedly connected to the middle of the top of the gate frame (1), and fixed clamps (7) are fixedly connected to the left and right sides of the controller (10) at the top of the gate frame (1), a double-axis motor (8) is fixedly connected to the top of the left and right end surfaces of the gate frame (1), and a threaded rod (17) is fixedly connected to the output end of the double-axis motor (8), and a moving block (18) is spirally connected to the outer side of the threaded rod (17), and a connecting rod (19) is fixedly connected to the top of the moving block (18), and a movable clamp (9) is fixedly connected to the end of the connecting rod (19) away from the moving block (18), and sliding grooves (14) are provided on the left and right sides of the top of the gate frame (1).

2. A gate opening and closing limit structure according to claim 1, characterized in that: The inner edge of the gate frame (1) contacts the edge of the gate plate (6), the steel cable (5) passes through the hole (11) at the top of the gate frame (1) and slides, the top of the first waterproof contact (13) contacts the bottom of the second waterproof contact (16), the outer side of the convex plate (15) contacts the inner lower side of the gate frame (1), the end of the threaded rod (17) away from the dual-axis motor (8) is rotatably connected to the upper left and right sides of the gate frame (1), the outer side of the moving block (18) contacts the upper inside of the gate frame (1), and the outer side of the connecting rod (19) is slidably connected to the upper inside of the gate frame (1).

3. A gate opening and closing limit structure according to claim 1, characterized in that: The first waterproof contact (13) and the second waterproof contact (16) are both electrically connected to the controller (10), and the controller (10) is electrically connected to the dual-axis motor (8). The controller (10) controls the dual-axis motor (8) to start only when the top of the first waterproof contact (13) contacts the second waterproof contact (16).

4. A gate opening and closing limit structure according to claim 1, characterized in that: The number of the grooves (12) on the lower inner side of the gate frame (1) is two groups, and the grooves (12) are distributed on the left and right sides of the lower inner side of the gate frame (1); the number and distribution positions of the convex plates (15) match the number and distribution positions of the grooves (12), and the cross-sectional shape of the convex plates (15) matches the cross-sectional shape of the grooves (12).

5. A gate opening and closing limit structure according to claim 1, characterized in that: A groove is provided on the upper part of the gate frame (1), and the threaded rod (17) and the moving block (18) are both located in the groove on the upper part of the gate frame (1). The width, number and distribution position of the sliding groove (14) on the top of the gate frame (1) are matched with the cross-sectional diameter, number and distribution position of the connecting rod (19).

6. A gate opening and closing limit structure according to claim 1, characterized in that: The number and shape of the fixed clamp block (7) and the movable clamp block (9) are the same, and the opening directions of the fixed clamp block (7) and the movable clamp block (9) are opposite. The inner sides of the fixed clamp block (7) and the movable clamp block (9) are provided with a limit groove from top to bottom, and the cross-sectional diameter of the limit groove matches the cross-sectional diameter of the steel cable (5).

7. A gate opening and closing limit structure according to claim 1, characterized in that: The dual-axis motor (8) is controlled by the controller (10) and can also be controlled by a remote control terminal, and the dual-axis motor (8) can rotate forward and reverse.

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