Accurate opening and closing system for water conservancy gate

Abstract

The utility model provides a water conservancy gate accurate opening and closing system which comprises a water conservancy gate plate, a lifting assembly is arranged on the upper end face of a top plate, and a lubricating assembly is arranged in the top plate. When the water conservancy gate plate is closed downwards in place, the programmable logic controller receives an electric signal transmitted by the first contact type position sensor and stops working of the low-speed motor through the relay, and when the water conservancy gate plate is closed downwards in place, the limiting baffle makes contact with the second contact type position sensor. When the water conservancy gate plate is lifted, the programmable logic controller receives an electric signal transmitted by the second contact type position sensor and stops the low-speed motor through the relay, so that the water conservancy gate plate is accurately lifted, opened and closed, and in the process that the lifting lead screw drives the water conservancy gate plate to lift, only the lubricating pump needs to be started. And the lubricating pump can extrude lubricating grease in the storage barrel to the annular side face of the lifting lead screw through an oil outlet pipe, an annular guide pipe and an extrusion nozzle for lubricating maintenance.

Description

TECHNICAL FIELD

[0001] The utility model relates to water conservancy gate opening and closing technical field, concretely is a kind of water conservancy gate precision opening and closing system. BACKGROUND

[0002] Water conservancy gate is a kind of hydraulic structure for regulating upstream water level and controlling the flow of discharged water, usually installed on river and channel. Its main functions include controlling flow, regulating water level, flood control, tide control, power generation, navigation, etc. Closing the gate can raise the upstream water level to meet the needs of irrigation, power generation, navigation, etc. Opening the gate can discharge floodwater, waterlogging, or provide water to the downstream. The gate opening and closing system is an important part of controlling the lifting and closing of the water conservancy gate.

[0003] The water conservancy gate provided in the publication "CN219808345U" can be automatically opened and closed by the design of the opening and closing assembly and the energy-saving assembly. It can also be manually controlled. It can automatically control the opening and closing of the gate without external power supply. It is simple to operate, energy-saving, and effectively improves the diversity of gate functions.

[0004] However, the above technical solution and existing technology have the following defects:

[0005] Although the water conservancy gate can be automatically opened and closed, there is no corresponding limiting structure to limit the opening range of the gate body. Therefore, the opening of the gate body cannot be accurately controlled by the staff during use. In addition, the gate does not have the ability to automatically lubricate the lead screw, which requires the staff to manually apply lubricating grease to the lead screw during use, which is time-consuming and labor-intensive. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a water conservancy gate precision opening and closing system to solve the problems raised in the background technology.

[0007] To achieve the above purpose, the utility model provides the following technical scheme:

[0008] A water conservancy gate precision opening and closing system includes a gate frame, a water conservancy gate plate and a top plate. The top plate is installed on the upper end face of the gate frame. The water conservancy gate plate is installed inside the gate frame. The top plate is provided with a lifting assembly on the upper end face, and the lifting assembly is used to lift and close the water conservancy gate plate. The top plate is provided with a lubricating assembly inside, and the lubricating assembly is used to lubricate and protect the lifting assembly.

[0009] Preferably, the lifting assembly includes a protective cover, a lifting lead screw, a limiting support sleeve, a limiting ring, a low-speed motor, a support base, a limiting cover, a worm and a worm wheel, the upper end face of the top plate is provided with the protective cover, the inside right side of the protective cover is provided with the low-speed motor, the left end of the low-speed motor is provided with the worm, the front side of the annular side face of the worm is engaged with the worm wheel, the middle position of the upper end face of the top plate is fixedly connected with the support base, the upper end face of the support base is provided with the limiting cover, the support base is embedded with the limiting ring, the inside of the limiting ring is provided with the limiting support sleeve, and the inside of the worm wheel is provided with the lifting lead screw.

[0010] Preferably, the right end face of the protective cover is fixedly connected with a control box, the inside upper side of the control box is provided with a programmable logic controller, the inside lower side of the control box is provided with a relay, the upper end face of the protective cover is fixedly connected with a support block, the upper end face of the support block is provided with a second contact position sensor, and the upper end of the lifting lead screw is provided with a limiting baffle.

[0011] Preferably, the lubricating assembly includes a barrel cover, a storage barrel, an oil inlet pipe, a lubricating pump, an oil outlet pipe, an annular conduit and an extrusion nozzle, the left side of the upper end face of the top plate is fixedly connected with the storage barrel, the upper end face of the storage barrel is provided with the barrel cover, the bottom of the storage barrel is fixedly connected with the oil inlet pipe, the inside left side of the top plate is provided with the lubricating pump, the outlet end of the lubricating pump is connected with the oil outlet pipe, the right end of the oil outlet pipe is fixedly connected with the annular conduit, and the inside annular side face of the annular conduit is fixedly connected with the extrusion nozzle on the left side and the front and back sides.

[0012] Preferably, the right side of the lower end face of the top plate is fixedly connected with a support rod, the annular side face of the support rod is sleeved with a support sleeve rod, the lower end of the support sleeve rod is provided with a first contact position sensor, and the inside upper side of the support sleeve rod is provided with a locking screw.

[0013] Preferably, the inside middle position of the worm wheel is provided with an internal thread through cavity, and the internal thread through cavity is engaged with the lifting lead screw, and the limiting support sleeve, the worm wheel and the limiting ring are in an integral structure.

[0014] Preferably, the barrel cover and the storage barrel are connected through a threaded connection mode, and the inside of the storage barrel stores lubricating ester.

[0015] Compared with the prior art, the lifting assembly of the utility model has the advantages that:

[0016] 1. By the programmable logic controller and relay control low-speed motor positive rotation, can make low-speed motor through the worm, worm and lifting screw driven water gate plate to move up open, otherwise can make water gate plate to move down to close, in the process, when the water gate plate to move up to the first contact position sensor contact, the first contact position sensor will send electrical signal to programmable logic controller, at this time the programmable logic controller will stop the low-speed motor to continue to work through the relay, and when the water gate plate to close to the position, the limit baffle will be in contact with the second contact position sensor, at this time the second contact position sensor will send electrical signal to programmable logic controller, make programmable logic controller stop the low-speed motor to continue to work through the relay, so as to the water gate plate for accurate lifting open and close;

[0017] 2. In the lifting screw driven water gate plate lifting process, only need to start lubricating pump, can make lubricating pump through the oil inlet pipe to store inside the barrel of lubricating ester is transported to the oil outlet pipe, then the lubricating ester will pass through the oil outlet pipe and annular conduit into the extrusion nozzle, finally through the extrusion nozzle is extruded in the annular side of lifting screw, so as to the up and down movement of the lifting screw lubrication maintenance, save time and effort. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the main body structure schematic diagram of the utility model;

[0019] Figure 2 It is the structure diagram of the utility model in the lifting assembly and lubricating assembly;

[0020] Figure 3 It is the front view of the utility model in the lifting assembly and lubricating assembly section view;

[0021] Figure 4 It is the local structure diagram of the utility model in the lifting assembly;

[0022] Figure 5 It is the circuit block diagram of the utility model in the lifting assembly.

[0023] In the figure: 1, gate frame; 2, water conservancy gate plate; 3, top plate; 4, lifting assembly; 41, control box; 42, protective cover; 43, limiting baffle; 44, lifting lead screw; 45, first contact position sensor; 46, support sleeve rod; 461, locking screw; 47, support rod; 48, limiting support sleeve; 49, limiting ring; 411, relay; 412, programmable logic controller; 413, low-speed motor; 414, support seat; 415, limiting cover; 416, worm; 417, worm gear; 4171, internal thread cavity; 418, support block; 419, second contact position sensor; 5, lubricating assembly; 51, barrel cover; 52, storage barrel; 53, oil inlet pipe; 54, lubricating pump; 55, oil outlet pipe; 56, annular conduit; 57, extrusion nozzle. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0026] Embodiment one:

[0027] A water conservancy gate precise opening and closing system, including gate frame 1, water conservancy gate plate 2 and top plate 3, the top plate 3 is detachable structure, and the top plate 3 can support lifting assembly 4, and the water conservancy gate plate 2 is installed in the inside of gate frame 1, the top plate 3 upper end surface is provided with lifting assembly 4, and lifting assembly 4 is used to lift water conservancy gate plate 2 and close, so that water conservancy gate plate 2 is more accurate when opening and closing, and the top plate 3 is provided with lubricating assembly 5, and lubricating assembly 5 is used to lubricate lifting assembly 4 and protect.

[0028] The lifting assembly 4 comprises a protective cover 42, a lifting screw rod 44, a limiting support sleeve 48, a limiting ring 49, a low-speed motor 413, a support seat 414, a limiting cover 415, a worm 416 and a worm wheel 417. The protective cover 42 is installed on the upper end face of the top plate 3 and can protect the worm wheel 417, the worm 416 and the low-speed motor 413. The low-speed motor 413 is installed at the right side in the protective cover 42 and is connected with the relay 411 through wires. The low-speed motor 413 can drive the worm 416 to rotate at low speed when working. The worm 416 is installed at the left end of the low-speed motor 413. The worm wheel 417 is engaged with the front side of the annular side face of the worm 416. An internally-threaded cavity 4171 is formed in the middle position in the worm wheel 417 and is engaged with the lifting screw rod 44. The worm 416 drives the worm wheel 417 to rotate, so that the worm wheel 417 drives the lifting screw rod 44 to move up and down through the internally-threaded cavity 4171. The worm 416 and the worm wheel 417 also have self-locking capability.

[0029] The support seat 414 is fixedly connected to the middle position of the upper end face of the top plate 3 and can limit and support the limiting ring 49. The limiting cover 415 is installed on the upper end face of the support seat 414 and can block and limit the limiting ring 49 to avoid displacement and shaking of the limiting ring 49 during rotation. The limiting ring 49 is embedded on the upper end face of the support seat 414 and can support the limiting support sleeve 48. The limiting support sleeve 48 is arranged in the limiting ring 49 and is an integral structure with the worm wheel 417 and the limiting ring 49. The limiting support sleeve 48 can support the worm wheel 417. The worm wheel 417 is provided with the lifting screw rod 44. The lifting screw rod 44 can drive the water sluice gate plate 2 to open and close. The control box 41 is fixedly connected to the right end face of the protective cover 42 and can protect the programmable logic controller 412 and the relay 411.

[0030] The programmable logic controller 412 is installed on the upper side inside the control box 41, and is connected with the relay 411, the first contact position sensor 45 and the second contact position sensor 419 through wires respectively. The power input end of the programmable logic controller 412 is connected with an external fixed power source through a wire. The programmable logic controller 412 can execute instructions for logical operation, sequential control, timing, counting and arithmetic operation, and control the low-speed motor 413 to work in forward and reverse directions. Since the internal detailed structure and working principle of the programmable logic controller 412 are relatively mature technologies in the prior art, they are not described in detail here. The relay 411 is installed on the lower side inside the control box 41, and facilitates the programmable logic controller 412 to control the low-speed motor 413 to work. The support block 418 is fixedly connected to the upper end face of the protective cover 42, and can support the second contact position sensor 419. The second contact position sensor 419 is installed on the upper end face of the support block 418, and can send an electric signal to the programmable logic controller 412 when being in contact with the limiting baffle 43.

[0031] The limiting baffle 43 is arranged on the upper end of the lifting screw rod 44, and is connected with the lifting screw rod 44 by welding. When the water sluice gate plate 2 is moved downward to the closed position, the limiting baffle 43 will be in contact with the second contact position sensor 419. The limiting baffle 43 not only can be in contact with the second contact position sensor 419 when being moved downward to the position, but also can shield the through cavity opened on the top of the protective cover 42. The support rod 47 is fixedly connected to the right side of the lower end face of the top plate 3, and is connected with the top plate 3 by welding. The support rod 47 can support the support sleeve rod 46. The support sleeve rod 46 is sleeved on the annular side face of the support rod 47. The support sleeve rod 46 can support the first contact position sensor 45. The first contact position sensor 45 is installed on the lower end of the support sleeve rod 46, and can send an electric signal to the programmable logic controller 412 when being in contact with the water sluice gate plate 2. The locking screw 461 is installed on the inside upper side of the support sleeve rod 46, and can fix the support sleeve rod 46 on the annular side face of the support rod 47.

[0032] Embodiment two:

[0033] On the basis of embodiment one, in the process of lifting the water sluice gate plate 2 by the lifting screw rod 44 in this embodiment, only the lubricating pump 54 needs to be started, so that the lubricating ester in the storage barrel 52 can be delivered into the oil outlet pipe 55 through the oil inlet pipe 53, and then the lubricating ester can enter the extrusion nozzle 57 through the oil outlet pipe 55 and the annular conduit 56, and finally be extruded on the annular side face of the lifting screw rod 44 through the extrusion nozzle 57, so as to lubricate and maintain the lifting screw rod 44 moving up and down.

[0034] The lubricating assembly 5 comprises a barrel cover 51, a storage barrel 52, an oil inlet pipe 53, a lubricating pump 54, an oil outlet pipe 55, an annular conduit 56, and an extrusion nozzle 57. The storage barrel 52 is fixedly connected to the left side of the top surface of the top plate 3, and the storage barrel 52 stores lubricating ester inside. The storage barrel 52 can store a certain amount of lubricating ester. The barrel cover 51 is installed on the upper end surface of the storage barrel 52 and is connected to the storage barrel 52 through a threaded connection. The barrel cover 51 not only seals the upper end surface of the storage barrel 52, but also facilitates the replenishment of lubricating ester into the storage barrel 52 after being opened. The oil inlet pipe 53 is fixedly connected to the bottom of the storage barrel 52. The oil inlet pipe 53 can guide the lubricating ester in the storage barrel 52 into the lubricating pump 54. The lubricating pump 54 is installed on the left side of the inside of the top plate 3. The outlet end of the lubricating pump 54 is connected to the oil outlet pipe 55. The lubricating pump 54 can deliver the lubricating ester delivered by the oil inlet pipe 53 to the annular conduit 56 through the oil outlet pipe 55. The right end of the oil outlet pipe 55 is fixedly connected to the annular conduit 56. The annular conduit 56 is fixedly connected to the inner annular side of the annular conduit 56 on the left and right sides and the front and back sides. The extrusion nozzle 57 is installed on the inner annular side of the annular conduit 56. The annular conduit 56 can guide the lubricating ester into the extrusion nozzle 57, so that the extrusion nozzle 57 can extrude the lubricating ester on the annular side of the lifting screw 44. The control switch is installed on the inner wall of the control box 41 (as shown in the figure), and is connected to the lubricating pump 54 through wires. The control switch facilitates the control of the lubricating pump 54 by the workers. Figure 3

[0035] ​Working principle: when the water conservancy gate plate 2 needs to be opened upward, the staff only needs to control the low-speed motor 413 to rotate forward through the programmable logic controller 412 and the relay 411, so that the low-speed motor 413 drives the worm wheel 417 to rotate forward through the worm 416, and the worm wheel 417 rotating forward drives the lifting lead screw 44 to move upward through the internal thread cavity 4171, so that the lifting lead screw 44 drives the water conservancy gate plate 2 to move upward and open, when the water conservancy gate plate 2 moves upward to contact the first contact position sensor 45, the first contact position sensor 45 sends an electric signal to the programmable logic controller 412, at this time the programmable logic controller 412 stops the low-speed motor 413 from continuing to work through the relay 411, so as to avoid the water conservancy gate plate 2 from opening upward too much, and similarly, when the low-speed motor 413 is controlled to reverse, the lifting lead screw 44 drives the water conservancy gate plate 2 to move downward and close, in this process, the limiting baffle 43 moves up and down with the lifting lead screw 44, when the water conservancy gate plate 2 is closed downward to the position, the limiting baffle 43 contacts the second contact position sensor 419, at this time the second contact position sensor 419 sends an electric signal to the programmable logic controller 412, so that the programmable logic controller 412 stops the low-speed motor 413 from continuing to work through the relay 411, so as to accurately lift and close the water conservancy gate plate 2, and when the staff loosens the locking screw 461 with the help of the external wrench, the supporting sleeve rod 46 can be adjusted to lift, so that the staff can adjust the use height of the first contact position sensor 45 according to the needs; during the lifting process of the lifting lead screw 44 driving the water conservancy gate plate 2, the staff only needs to start the lubricating pump 54 through the control panel, so that the lubricating pump 54 delivers the lubricating ester in the storage barrel 52 to the oil outlet pipe 55 through the oil inlet pipe 53, then the lubricating ester enters the extrusion nozzle 57 through the oil outlet pipe 55 and the annular conduit 56, and finally the lubricating ester is extruded on the annular side surface of the lifting lead screw 44 through the extrusion nozzle 57, so as to lubricate and maintain the lifting lead screw 44 moving up and down, and after the lubrication and maintenance is completed, the lubricating pump 54 can be turned off.

[0036] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A precise opening and closing system of a water sluice gate, comprising a gate frame (1), a water sluice gate plate (2) and a top plate (3), characterized in that: The upper end face of the gate frame (1) is provided with a top plate (3), the inside of the gate frame (1) is provided with a water conservancy gate plate (2), the upper end face of the top plate (3) is provided with a lifting assembly (4), and the lifting assembly (4) is used for lifting the water conservancy gate plate (2) to open and close, and the inside of the top plate (3) is provided with a lubricating assembly (5), and the lubricating assembly (5) is used for lubricating and protecting the lifting assembly (4); The lifting assembly (4) comprises a protective cover (42), a lifting lead screw (44), a limiting support sleeve (48), a limiting ring (49), a low-speed motor (413), a supporting seat (414), a limiting cover (415), a worm (416) and a worm wheel (417), the upper end face of the top plate (3) is provided with the protective cover (42), the inside right side of the protective cover (42) is provided with the low-speed motor (413), the left end of the low-speed motor (413) is provided with the worm (416), the annular side face front side of the worm (416) is engaged with the worm wheel (417), the upper end face of the top plate (3) is fixedly connected with the supporting seat (414), the upper end face of the supporting seat (414) is provided with the limiting cover (415), the upper end face of the supporting seat (414) is embedded with the limiting ring (49), the inside of the limiting ring (49) is provided with the limiting support sleeve (48), and the inside of the worm wheel (417) is provided with the lifting lead screw (44). The right end face of the protective cover (42) is fixedly connected with a control box (41), the inside upper side of the control box (41) is provided with a programmable logic controller (412), the inside lower side of the control box (41) is provided with a relay (411), the upper end face of the protective cover (42) is fixedly connected with a supporting block (418), the upper end face of the supporting block (418) is provided with a second contact position sensor (419), and the upper end of the lifting lead screw (44) is provided with a limiting baffle (43). The lubricating assembly (5) comprises a barrel cover (51), a storage barrel (52), an oil inlet pipe (53), a lubricating pump (54), an oil outlet pipe (55), an annular guide pipe (56) and an extrusion nozzle (57), the left side of the upper end face of the top plate (3) is fixedly connected with the storage barrel (52), the upper end face of the storage barrel (52) is provided with the barrel cover (51), the bottom of the storage barrel (52) is fixedly connected with the oil inlet pipe (53), the left side of the inside of the top plate (3) is provided with the lubricating pump (54), the outlet end of the lubricating pump (54) is connected with the oil outlet pipe (55), the right end of the oil outlet pipe (55) is fixedly connected with the annular guide pipe (56), and the inner annular side face of the annular guide pipe (56) is fixedly connected with the extrusion nozzle (57) on the left side and the front and rear sides.

2. The precise opening and closing system of a water gate according to claim 1, characterized in that: The right side of the lower end face of the top plate (3) is fixedly connected with a supporting rod (47), the annular side face of the supporting rod (47) is sleeved with a supporting sleeve rod (46), the lower end of the supporting sleeve rod (46) is provided with a first contact position sensor (45), and the inside upper side of the supporting sleeve rod (46) is provided with a locking screw (461).

3. The precise opening and closing system of a water gate according to claim 1, characterized in that: The worm wheel (417) is internally provided with an internally threaded cavity (4171) at a middle position, and the internally threaded cavity (4171) is engaged with the lifting screw rod (44), and the limiting support sleeve (48) is an integral structure with the worm wheel (417) and the limiting ring (49).

4. The precise opening and closing system of a water gate according to claim 1, characterized in that: The barrel cover (51) is connected with the storage barrel (52) through a threaded connection mode, and the storage barrel (52) internally stores lubricating ester.

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