Self-locking device of hydraulic rotary gate

Abstract

The utility model discloses a self-locking device of a hydraulic rotary gate, and belongs to the technical field of water conservancy projects. The self-locking device comprises a PLC (Programmable Logic Controller), round pipes symmetrically and fixedly arranged on a weir gate, bent hooks rotationally connected to a weir frame and used for hooking the round pipes, and driving pieces arranged on the weir frame, rotationally connected with one ends, far away from the round pipes, of the bent hooks and used for locking or unlocking the bent hooks and the round pipes, a sensor used for detecting the position of the check gate is arranged on the side, close to the check gate, of the weir frame, the sensor is connected with the input end of the PLC, and the driving part is connected with the output end of the PLC. According to the self-locking device of the hydraulic rotary gate, stable self-locking of the gate can be achieved through hooking of the round pipe and the bent hook and the locking or unlocking function of the driving piece, the dual functions of PLC automatic control and manual control are achieved at the same time so as to meet the operation requirements under different occasions and conditions, and the adaptability and flexibility of the device are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic engineering, in particular to a self-locking device of a hydraulic rotary gate. BACKGROUND

[0002] In the fields of water conservancy, hydropower, flood control and drainage, and industrial water supply and drainage, gates are an important component of hydraulic structures, used to close and open water channels to intercept water flow, control water level, regulate flow, and discharge sediment and floating objects. However, traditional gates mostly use a simple opening and closing method, which is relatively single in operation and has low automation.

[0003] In recent years, with the development of technology, especially the application of hydraulic technology and automatic control technology, the control performance and efficiency of gates have been significantly improved. Traditional hydraulic rotary gates mostly use hydraulic cylinders as power sources to drive the gate to rotate through a lever mechanism to achieve opening and closing. Although some gates are equipped with automatic control systems, such as PLC controllers, to improve operational efficiency, the self-locking devices still mostly use mechanical locking mechanisms. Although such mechanical locking mechanisms can achieve the locking function of the gate to some extent, their locking effect is often not stable and is easily damaged by external environmental factors, thereby affecting the reliability and safety of the gate. Meanwhile, in the switching between automatic and manual operation, there are drawbacks such as complex operation and slow response.

[0004] Therefore, the present application provides a self-locking device of a hydraulic rotary gate to solve the above problems. CONTENT OF THE INVENTION

[0005] The present application provides a self-locking device of a hydraulic rotary gate, aiming to solve the problems of existing hydraulic rotary gates that have partially achieved automatic control, but the self-locking device is unstable and easily damaged by external interference, and the switching between automatic and manual operation is complex and slow in response.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a self-locking device of a hydraulic rotary gate, comprising a PLC controller, a circular pipe symmetrically and fixedly arranged on a weir gate, a hook rotatably connected to a weir frame for hooking with the circular pipe, and a driving member arranged on the weir frame and rotatably connected to the hook away from the circular pipe, for locking or unlocking the hook and the circular pipe, a sensor for detecting the position of the weir gate is arranged on the side of the weir frame close to the weir gate, the sensor is connected to the input end of the PLC controller, and the driving member is connected to the output end of the PLC controller.

[0007] The self-locking device further comprises a support plate which is longitudinally movable on the top end of the driving member and fixedly connected with the driving member, and a manual assembly which is arranged on the weir frame and connected with the support plate for manually driving the support plate to ascend and descend to lock or unlock the hook and the pipe;

[0008] The lubricating assembly is arranged on the support plate and connected with the manual assembly for maintaining the manual assembly; through the hooking of the pipe and the hook and the locking or unlocking function of the driving member, the stable self-locking of the gate is realized; through the cooperation of the PLC controller and the sensor, the device has the PLC automatic control function; meanwhile, the manual assembly is provided, so that when the PLC automatic control fails or emergency operation is needed, the support plate can be driven to ascend and descend through the manual assembly, so as to realize the locking or unlocking of the hook and the pipe; the double control mode improves the adaptability and flexibility of the device to meet the operation requirements under different occasions and conditions; the design of the lubricating assembly can maintain the manual assembly to ensure the timeliness of the manual operation of the manual assembly.

[0009] Preferably, in order to facilitate the automatic driving of the hook, the driving member is an electric push rod or a hydraulic rod; the electric push rod and the hydraulic rod have strong driving force and precise displacement control ability, and can stably drive the hook to perform the locking or unlocking operation.

[0010] Preferably, in order to reduce the frictional resistance of the manual operation of the manual assembly, a wear-resistant sleeve which is connected with the manual assembly is fixedly arranged on the side of the support plate away from the driving member; the addition of the wear-resistant sleeve significantly reduces the frictional resistance between the manual assembly and the support plate, so that the manual operation is more relaxed and labor-saving.

[0011] Preferably, in order to facilitate the manual realization of the ascending and descending of the support plate, the manual assembly comprises a door-shaped support which is fixedly arranged on the weir frame at a position corresponding to the upper side of the wear-resistant sleeve, a fixed sleeve which is fixedly arranged on the side of the door-shaped support away from the wear-resistant sleeve, a fixed nut which is fixedly arranged on the end of the fixed sleeve away from the door-shaped support, and an adjusting screw rod which is longitudinally penetrated through the fixed nut, the fixed sleeve and the door-shaped support in sequence and is screwed with the fixed nut, and the bottom end of the adjusting screw rod is rotationally connected with the wear-resistant sleeve; the combination of the door-shaped support, the fixed sleeve, the fixed nut and the adjusting screw rod provides a simple and effective manual lifting mechanism, and the ascending and descending of the support plate can be easily realized by rotating the adjusting screw rod, so as to control the locking or unlocking of the hook, which is easy to operate and has stable structure and can bear a large load.

[0012] Preferably, in order to ensure the stability of the movement of the support plate, the door-shaped support is provided with a guide groove on each side corresponding to the support plate, and the support plate is slidably connected in the two guide grooves; the design of the guide groove ensures the stability of the support plate during lifting, so that it can maintain straight line motion, avoiding operation errors caused by shaking or deviation.

[0013] Preferably, in order to facilitate the maintenance of the manual assembly, the lubricating assembly comprises a cylinder body fixedly arranged on the door-shaped support corresponding to one side of the wear-resistant sleeve for loading lubricating oil, a piston longitudinally moving in the cylinder body, a connecting rod longitudinally penetrating the bottom end of the piston and fixedly connected with the wear-resistant sleeve and the piston at both ends, and an injection pipe fixedly arranged at the top end of the cylinder body and in communication with the cylinder body and the fixed sleeve at both ends. The connecting rod is slidably connected to the cylinder body; through the combination design of the cylinder body, the piston, the connecting rod and the injection pipe, the manual assembly can be continuously lubricated while the manual assembly is operated.

[0014] Preferably, in order to facilitate the lubrication of the adjusting screw rod and ensure the timeliness of the use of the adjusting screw rod, the fixed sleeve is provided with an injection hole on the side close to the adjusting screw rod, and the injection hole is in communication with the injection pipe; the design of the injection hole enables the lubricating liquid to directly act on the adjusting screw rod, thereby prolonging the service life of the adjusting screw rod and ensuring smooth and efficient operation of the entire manual assembly.

[0015] The self-locking device of the hydraulic rotary gate can realize stable self-locking of the gate through the hooking of the round pipe and the bent hook and the locking or unlocking function of the driving member, and has the dual functions of PLC automatic control and manual control to adapt to the operation requirements under different occasions and conditions and improve the adaptability and flexibility of the device.

[0016] The self-locking device of the hydraulic rotary gate can realize stable self-locking of the gate through the hooking of the round pipe and the bent hook and the locking or unlocking function of the driving member, and has the dual functions of PLC automatic control and manual control to adapt to the operation requirements under different occasions and conditions and improve the adaptability and flexibility of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an application structure schematic view of a self-locking device of a hydraulic rotary gate.

[0018] Figure 2 It is a sectional view of a self-locking device of a hydraulic rotary gate.

[0019] Figure 3 It is a structure schematic view of a manual assembly in a self-locking device of a hydraulic rotary gate.

[0020] Figure 4 It is Figure 3 It is an enlarged view of A in FIG.

[0021] In the figure:

[0022] 1. PLC controller;

[0023] 2. Sensors;

[0024] 3. Round tube;

[0025] 4. Hook;

[0026] 5. Drive components;

[0027] 6. Support plate; 61. Wear-resistant sleeve;

[0028] 7. Manual assembly; 71. Gate-shaped bracket; 711. Guide groove; 72. Fixing sleeve; 73. Fixing nut; 74. Adjusting screw;

[0029] 8. Lubrication assembly; 81. Cylinder; 82. Piston; 83. Connecting rod; 84. Injection pipe. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] This embodiment provides a self-locking device for a hydraulic rotary gate, such as... Figures 1-4 As shown, the self-locking device includes a PLC controller 1, a circular pipe 3 symmetrically fixed on the weir gate, a hook 4 rotatably connected to the weir frame for engaging with the circular pipe 3, and a drive component 5 set on the weir frame and rotatably connected to the end of the hook 4 away from the circular pipe 3 for locking or unlocking the hook 4 and the circular pipe 3. A sensor 2 for detecting the position of the weir gate is set on the side of the weir frame near the weir gate. The sensor 2 is connected to the input terminal of the PLC controller 1, and the drive component 5 is connected to the output terminal of the PLC controller 1. The self-locking device also includes a support plate 6 that moves longitudinally at the top of the drive component 5 and is fixedly connected to the drive component 5, and a manual component 7 set on the weir frame and connected to the support plate 6 for manually driving the support plate 6 to raise and lower to lock or unlock the hook 4 and the circular pipe 3. A lubrication component 8 is set on the support plate 6 and connected to the manual component 7 for maintaining the manual component 7.

[0032] In order to facilitate the automatic driving of the hook 4, the driving component 5 is an electric push rod or a hydraulic rod; both the electric push rod and the hydraulic rod have strong driving force and precise displacement control capabilities, which can stably drive the hook 4 to perform locking or unlocking operations.

[0033] In addition, in order to reduce the friction resistance of the manual assembly 7, the side of the support plate 6 away from the driving part 5 is fixedly provided with a wear-resistant sleeve 61 connected with the manual assembly 7; the addition of the wear-resistant sleeve 61 significantly reduces the friction resistance between the manual assembly 7 and the support plate 6, making the manual operation more labor-saving.

[0034] In use, when the gate is pushed to one side of the weir frame to close, and the gate reaches the preset closing position, the sensor 2 will immediately capture the real-time position of the gate and convert it into an electrical signal to send a signal to the PLC controller 1. Then, after receiving the signal from the sensor 2, the PLC controller 1 will perform internal processing and start the driving part 5 according to the preset logic. Then, after receiving the signal from the PLC controller 1, the driving part 5 will drive the hook 4 to flip down and hook the circular pipe 3, so as to lock the hook 4 and the circular pipe 3. When it is necessary to open the gate, the hook 4 and the circular pipe 3 can be separated and unlocked by driving the hook 4 to flip up through the PLC controller 1 to control the driving part 5. When the PLC controller 1 control fails or emergency operation is needed, the operator can drive the support plate 6 to rise through the manual assembly 7. Since the support plate 6 is connected with the driving part 5, and the driving part 5 is rotationally connected with the hook 4, when the support plate 6 is driven to rise, the support plate 6 will drive the hook 4 to flip down and hook the circular pipe 3, so as to lock the hook 4 and the circular pipe 3. Conversely, when the support plate 6 is driven to descend, the support plate 6 will drive the hook 4 to flip up and separate it from the circular pipe 3, so as to unlock. However, when it is necessary to use the manual assembly 7 for locking, the lubricating assembly 8 will simultaneously maintain the manual assembly 7.

[0035] Specifically, the manual assembly 7 includes a door-shaped support 71 fixedly arranged above the wear-resistant sleeve 61 on the weir frame, a fixed sleeve 72 fixedly arranged on the side of the door-shaped support 71 away from the wear-resistant sleeve 61, a fixed nut 73 fixedly arranged at the end of the fixed sleeve 72 away from the door-shaped support 71, and an adjusting screw 74 sequentially longitudinally penetrating the fixed nut 73, the fixed sleeve 72 and the door-shaped support 71 and screwing with the fixed nut 73, the bottom end of the adjusting screw 74 being rotationally connected with the wear-resistant sleeve 61.

[0036] When the weir gate needs to be manually locked, the operator only needs to put the special sleeve into the top end of the adjusting screw 74. Since the adjusting screw 74 is screwed with the fixed nut 73, when the adjusting screw 74 is rotated to move upward along the thread direction of the fixed nut 73, the bottom end of the adjusting screw 74 will drive the support plate 6 to rise synchronously through the connection of the wear-resistant sleeve 61. Then, through the connection of the driving part 5, the hook 4 will be flipped downward and hooked to the circular pipe 3 with the rising of the support plate 6. After the hook 4 is hooked to the circular pipe 3, the rotation of the adjusting screw 74 is paused, and the locking of the weir gate can be realized through the hooking of the hook 4 and the circular pipe 3. Conversely, when the adjusting screw 74 is rotated to move downward along the thread direction of the fixed nut 73, the bottom end of the adjusting screw 74 will drive the support plate 6 to descend synchronously through the connection of the wear-resistant sleeve 61. Then, through the connection of the driving part 5, the hook 4 will be flipped upward and away from the circular pipe 3 with the descending of the support plate 6. When the hook 4 is completely away from the circular pipe 3, the hooking of the hook 4 and the circular pipe 3 can be released, and the unlocking of the weir gate is realized.

[0037] It can be understood that, in order to ensure the stability of the movement of the support plate 6, the door-shaped support 71 is provided with a guide groove 711 corresponding to both sides of the support plate 6, and the support plate 6 is slidingly connected to the two guide grooves 711. The design of the guide groove 711 ensures the stability of the support plate 6 during lifting, so that it can maintain straight-line motion and avoid operation errors caused by shaking or deviation.

[0038] Further, the lubricating assembly 8 includes a cylinder body 81 fixedly arranged on the door-shaped support 71 corresponding to one side of the wear-resistant sleeve 61 for loading lubricating oil, a piston 82 longitudinally moving in the cylinder body 81, a connecting rod 83 longitudinally penetrating the bottom end of the piston 82 and fixedly connected to the wear-resistant sleeve 61 and the piston 82 at both ends, and an injection pipe 84 fixedly arranged at the top end of the cylinder body 81 and in communication with the cylinder body 81 and the fixed sleeve 72 at both ends. The connecting rod 83 is slidingly connected to the cylinder body 81, and the fixed sleeve 72 is provided with an injection hole near the side close to the adjusting screw 74, which is in communication with the injection pipe 84.

[0039] When the support plate 6 is lifted by rotating the adjusting screw 74, the wear-resistant sleeve 61 fixed on the support plate 6 is connected with the connecting rod 83, so that the connecting rod 83 can push the piston 82 to move to the side close to the injection pipe 84 synchronously with the lifting of the support plate 6. With the movement of the piston 82, the lubricating oil in the cylinder 81 is compressed and delivered to the injection pipe 84, and finally injected into the injection hole on the fixed sleeve 72. When the adjusting screw 74 passes through the injection hole, the lubricating oil can automatically lubricate the surface of the adjusting screw 74 to ensure the timeliness and smoothness of the use of the adjusting screw 74. Conversely, when the support plate 6 is lowered by rotating the adjusting screw 74, the connecting rod 83 can push the piston 82 to move away from the injection pipe 84 synchronously. At this time, the excess lubricating oil at the injection hole is extracted back into the cylinder 81 through the injection pipe 84.

[0040] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A self-locking device for a hydraulic rotary gate, characterized in that: The utility model relates to a kind of weir gate locking and unlocking device, including PLC controller (1), symmetrically fixedly arranged pipe (3) on weir gate, hook (4) rotationally connected on weir frame for hooking with the pipe (3) and drive member (5) for locking or unlocking the hook (4) and the pipe (3) is rotationally connected on the weir frame and is away from the pipe (3) one end of the hook (4), the side of the weir frame close to the weir gate is provided with sensor (2) for detecting the position of the weir gate, the sensor (2) is connected with the input end of the PLC controller (1), and the drive member (5) is connected with the output end of the PLC controller (1); The self-locking device further includes a support plate (6) longitudinally moving on the top end of the drive member (5) and fixedly connected with the drive member (5), and a manual assembly (7) provided on the weir frame and connected with the support plate (6) for manually driving the support plate (6) to rise and fall to lock or unlock the hook (4) and the pipe (3). The support plate (6) is provided with a lubricating assembly (8) connected with the manual assembly (7) for maintaining the manual assembly (7).

2. Hydraulic rotary gate self-locking device according to claim 1, characterized in that: The drive member (5) is an electric push rod or a hydraulic rod.

3. Hydraulic rotary gate self-locking device according to claim 2, characterized in that: The side of the support plate (6) away from the drive member (5) is fixedly provided with a wear-resistant sleeve (61) connected with the manual assembly (7).

4. Hydraulic rotary gate self-locking device according to claim 3, characterized in that: The manual assembly (7) includes a door-shaped bracket (71) fixedly provided on the weir frame above the position corresponding to the wear-resistant sleeve (61), a fixed sleeve (72) fixedly provided on the side of the door-shaped bracket (71) away from the wear-resistant sleeve (61), a fixed nut (73) fixedly provided on the end of the fixed sleeve (72) away from the door-shaped bracket (71), and an adjusting screw (74) longitudinally penetrating the fixed nut (73), the fixed sleeve (72), and the door-shaped bracket (71) in sequence and screw-connected with the fixed nut (73), and the bottom end of the adjusting screw (74) is rotationally connected with the wear-resistant sleeve (61).

5. Hydraulic rotary gate self-locking device according to claim 4, characterized in that: The door-shaped bracket (71) is provided with a guide groove (711) on both sides corresponding to the support plate (6), and the support plate (6) is slidingly connected in the two guide grooves (711).

6. The self locking device of a hydraulic rotary gate according to claim 4, wherein: The lubricating assembly (8) includes a cylinder body (81) fixedly provided on the door-shaped bracket (71) on the side corresponding to the wear-resistant sleeve (61) for loading lubricating oil, a piston (82) longitudinally moving in the cylinder body (81), a connecting rod (83) longitudinally penetrating the bottom end of the piston (82) and fixedly connected with the wear-resistant sleeve (61) and the piston (82) at both ends, and an injection pipe (84) fixedly provided on the top end of the cylinder body (81) and communicating with the cylinder body (81) and the fixed sleeve (72) at both ends, and the connecting rod (83) is slidingly connected on the cylinder body (81).

7. Hydraulic rotary gate self-locking device according to claim 6, characterized in that: The side of the fixed sleeve (72) close to the adjusting screw (74) is provided with an injection hole, and the injection hole communicates with the injection pipe (84).

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