Gate structure

Abstract

The invention relates to the field of gates, and particularly discloses a gate structure which comprises a door frame body, a gate plate and a driving device, and the driving device achieves the lifting and lubricating functions of the gate plate through a first opening and closing assembly and a first lubricating assembly. Wherein the first opening and closing assembly completes motion conversion through screw joint matching of the first movable lead screw and the connecting cylinder, and the first lubricating assembly lubricates and cleans the lead screw through the oil storage barrel, the liquid outlet pipe and the cleaning brush. In addition, a second opening and closing assembly and a second lubricating assembly are additionally arranged to further optimize the performance, and it is guaranteed that the lubricating effect is stable and reliable through a specially-designed oil storage system. The technical effects that the operation stability of the gate is improved, the service life of equipment is prolonged, and the maintenance cost is reduced are achieved.

Description

Technical Field

[0001] The present application relates to the field of gates, and in particular to a gate structure. Background Art

[0002] At present, water conservancy engineering gates are one of the core equipment of modern water conservancy systems and are widely used in scenes such as rivers, canals, dams and reservoirs. It undertakes many important functions such as flood control and drainage, water diversion and irrigation, water volume regulation and supporting the operation of hydropower stations. It is indispensable for ensuring agricultural production, promoting energy supply and meeting the living needs of urban residents. With the continuous and rapid development of the economy and society, human beings have increasingly higher requirements for the accuracy of water resources management, which has also prompted the continuous innovation and upgrading of water conservancy engineering technology to cope with more complex and diverse working conditions and higher performance indicators.

[0003] In the relevant technology, in order to maintain the efficient and stable operation of such facilities in actual engineering practice, the industry generally adopts a variety of traditional strategies for preventive protection. For example, a layer of corrosion-resistant coating is applied on the surface of the valve drive screw before it leaves the factory.

[0004] The above-mentioned related technologies have the following defects: when the threaded rod drives the gate plate to move up and down, its coating is easily damaged by friction. Since the gate is generally set at the external gate position for a long time, the threaded rod is prone to rust, which will cause the gate plate to move up and down discontinuously. Summary of the invention

[0005] In order to prevent the threaded rod from rusting and enable the gate to operate smoothly for a long time, the present application provides a gate structure.

[0006] The gate structure provided in this application adopts the following technical solution: A gate structure comprises a door frame body, a gate plate and a driving device, wherein the gate plate is installed on the door frame body in a liftable manner; the driving device comprises a first opening and closing component and a first lubrication component, the first opening and closing component comprises a first movable screw rod hinged to the gate plate at one end and a connecting cylinder rotatably connected to the door frame body, the other end of the first movable screw rod is threadedly connected to the connecting cylinder; the first lubrication component comprises an oil storage barrel arranged on the side of the first movable screw rod and a cleaning brush connected to the oil storage barrel, the oil storage barrel is provided with a liquid outlet pipe arranged opposite to the first movable screw rod, and the cleaning brush is arranged at the liquid outlet end of the liquid outlet pipe.

[0007] By adopting the above technical solution, the door frame body cooperates with the liftable gate plate to effectively realize the water source blocking function. The screw connection design of the first movable screw rod and the connecting tube in the first opening and closing component ensures the stability and accuracy of the gate plate lifting and lowering. Lubricating oil is injected into the oil storage barrel, and the liquid outlet pipe in the oil storage barrel in the first lubrication component cooperates with the cleaning brush to provide continuous lubrication for the first movable screw rod during its up and down movement, and re-coat the surface of the first movable screw rod with a layer of protection to avoid poor operation caused by rust, thereby significantly improving the reliability and smoothness of the gate in long-term use.

[0008] Preferably, the oil storage barrel is an annular tube sleeved on the first movable screw rod, and the liquid outlet pipe and the cleaning brush are radially arranged on the inner wall of the annular tube.

[0009] By adopting the above technical solution, the oil storage barrel is designed as an annular tube sleeved on the first movable screw rod, which can ensure that the lubricating oil is evenly distributed around the first movable screw rod, thereby improving the comprehensiveness and efficiency of lubrication. At the same time, the liquid outlet pipe and the cleaning brush are radially arranged on the inner wall of the annular tube. This layout not only facilitates the lubricating oil to directly act on the surface of the first movable screw rod after flowing out of the liquid outlet pipe, but also can remove impurities on the surface of the first movable screw rod with the help of the cleaning brush, thereby reducing wear and extending the service life of the first movable screw rod, ensuring that the gate structure operates more smoothly and reliably.

[0010] Preferably, the liquid outlet pipe is an elastic conical tube, and the end of the elastic conical tube with a larger diameter is connected to the oil storage barrel.

[0011] By adopting the above technical solution, the cleaning brush removes impurities on the surface of the first moving screw rod, which will be deformed by force and then squeeze the elastic conical tube, squeeze out the lubricating oil and contact the cleaning brush. Then the cleaning brush brushes the lubricating oil on the surface of the first moving screw rod to lubricate and protect the first moving screw rod.

[0012] Preferably, there are a plurality of the liquid outlet pipes and the cleaning brushes, and the plurality of the liquid outlet pipes and the plurality of the cleaning brushes are distributed along the circumference of the annular tube.

[0013] By adopting the above technical solution, it is possible to achieve multi-point lubrication and all-round cleaning effects around the first moving screw. Specifically, multiple liquid outlet pipes distributed along the circumference of the annular tube can ensure that the lubricating oil covers the surface of the first moving screw more evenly, reducing friction resistance and preventing rust; at the same time, multiple cleaning brushes are also distributed along the circumference of the annular tube, which can effectively wipe the first moving screw during its up and down movement to remove impurities and old oil film, thereby improving lubrication efficiency and extending the service life of the equipment. This design significantly improves the stability and reliability of the gate structure operation.

[0014] Preferably, part of the cleaning brush is sandwiched between two adjacent liquid outlet pipes.

[0015] By adopting the above technical solution, it is ensured that the cleaning brush can effectively press the liquid outlet pipe when being bent, so that the liquid outlet pipe squeezes out the lubricating liquid.

[0016] Preferably, the driving device includes a second opening and closing component and a second lubrication component, the second opening and closing component includes a second movable screw rod with one end rotatably connected to the door frame body and an internal threaded tube threadedly connected to the other end of the second movable screw rod; the internal threaded tube is connected to the gate plate; the second lubrication component includes a sleeve, one end of the sleeve is sleeved on the internal threaded tube, and the other end is connected to the door frame body.

[0017] By adopting the above technical solution, the second opening and closing component utilizes the threaded connection between the second movable screw and the internal threaded tube to achieve smooth lifting and lowering of the gate, avoiding the uneven force problem that may be caused by the traditional single threaded connection. At the same time, the sleeve design in the second lubrication component effectively isolates the influence of external impurities on the second movable screw, ensuring that the second movable screw can run smoothly for a long time. Specifically, the threaded transmission between the second movable screw and the internal threaded tube improves the reliability of the system, and the protective effect of the sleeve further enhances the durability and smooth operation of the entire drive device.

[0018] Preferably, the second movable screw is dynamically sealedly connected to the door frame body; the sleeve is dynamically sealedly connected to the internal threaded tube; an oil storage tube is provided on the gate plate, one end of the oil storage tube is closed, and the other end has an opening, and a piston is provided on the inner side of the open end of the oil storage tube; a first fluid exchange tube is provided in the tube wall of the internal threaded tube, and the first fluid exchange tube extends from the end surface of the internal threaded tube away from the gate plate to the inner wall of the internal threaded tube close to the gate plate; a second fluid exchange tube is connected to the end of the internal threaded tube close to the gate plate and the closed end of the oil storage tube.

[0019] By adopting the above technical solution, a dynamic sealing connection between the second movable screw and the internally threaded tube is achieved, further effectively preventing the entry of foreign matter. Since the second movable screw is in a sealed space at this time, in order for the second movable screw to operate effectively, the oil storage pipe, the first liquid exchange pipe and the second liquid exchange pipe form a system for balancing air pressure. When the second movable screw is raised or lowered, the piston also moves in the oil storage pipe to balance the air pressure inside the sleeve and the internally threaded tube.

[0020] Preferably, the oil storage pipe is filled with lubricating oil.

[0021] By adopting the above technical solution, the lubricating oil in the oil storage pipe can be transported to the internal threaded pipe through the second liquid exchange pipe through the action of the piston, and return through the first liquid exchange pipe to form a circulating lubrication path, reduce wear and extend the life of components. When the second moving screw rod can be away from the gate, an oil pumping action can be formed, and then the lubricating oil is pumped into the internal threaded pipe and the sleeve, and the two ends of the second moving screw rod are performed to ensure a long-lasting and stable lubrication effect. The dynamic seal design combined with the lubricating oil circulation mechanism significantly improves the smoothness of the gate opening and closing process and reduces the maintenance frequency.

[0022] Preferably, a protective cover is provided at the open end of the oil storage pipe, and a constant pressure valve is provided on the protective cover.

[0023] By adopting the above technical solution, the open end of the oil storage pipe is effectively protected, while the stability of the internal pressure of the oil storage pipe is ensured.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. In this application, by setting up a lubrication mechanism, the movable screw rod can be effectively lubricated and cleaned during its up and down movement, thereby avoiding the jamming phenomenon caused by rust and significantly improving the smoothness and reliability of the gate opening and closing process.

[0025] 2. The application utilizes the coordinated design of an oil storage barrel and a cleaning brush to ensure that the lubricating oil can be evenly applied to the surface of the moving screw, thereby extending its service life and reducing the maintenance frequency.

[0026] 3. The lubricating oil storage and replenishment mechanism in the oil storage barrel in this application combined with the design of the liquid outlet pipe realizes the automatic lubrication function, reduces the need for manual intervention, and improves the overall operating efficiency of the system.

[0027] 4. The second opening and closing component in this application adopts a combination design of an internal threaded tube and a second movable screw rod, which cooperates with the sleeve structure in the second lubrication component to further enhance the sealing and stability between the transmission components and greatly reduce the impact of external environmental factors on the equipment.

[0028] 5. In the present application, the internally threaded tube has a built-in first fluid exchange tube and is connected to the oil storage tube through the second fluid exchange tube, forming a circulating lubrication path, so that the lubricating oil can flow fully in key parts, optimize the lubrication coverage, and improve the overall mechanical performance and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present application; Figure 2 is a schematic diagram of the side structure of the driving device after the first protective cover is removed according to the first embodiment of the present application; Figure 3 This is a schematic diagram of the top view of the driving device after the first protective cover is removed according to the first embodiment of the present application; Figure 4 is a schematic diagram of the top view of the structure of the driving device after the first lubrication assembly of the first embodiment of the present application is cut open; Figure 5 It is a schematic diagram of the overall structure of the second embodiment of the present application; Figure 6 It is a schematic cross-sectional structure diagram of the second embodiment of the present application.

[0031] Reference numerals: 1. Door frame body; 11. Bottom plate; 12. Top plate; 13. Side plate; 14. Limiting assembly; 141. Limiting roller; 2. Gate plate; 201. Blind hole; 20. Driving device; 3. First opening and closing assembly; 31. First moving screw rod; 32. Connecting tube; 33. Engaging gear; 34. Driving gear; 35. First driving motor; 36. First protective cover; 30. First lubricating assembly; 301. Oil storage barrel; 302. Liquid inlet valve; 303. Liquid outlet pipe; 304. Cleaning brush; 4. Second opening and closing assembly; 41. Second moving screw rod; 42. Internal threaded pipe; 43. Second driving motor; 44. Second protective cover; 40. Second lubricating assembly; 401. Casing; 402. First liquid exchange pipe; 403. Second liquid exchange pipe; 404. Oil storage pipe; 405. Piston; 406. Protective cover; 407. Constant pressure valve. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-6 This application is described in further detail.

[0033] The embodiment of the present application discloses a gate structure.

[0034] Embodiment 1 Reference Figure 1A gate structure includes a door frame body 1, a gate plate 2 and a driving device 20. The gate plate 2 can be installed on the door frame body 1 in a liftable manner. The door frame body 1 cooperates with the liftable gate plate 2 to effectively realize the water source blocking function. In the embodiment of the present application, the door frame body 1 includes a bottom plate 11, a top plate 12 and two side plates 13 arranged in parallel and symmetrically. The first ends of the two side plates 13 are connected to the bottom plate 11, and the second ends are connected to the top plate 12. The two side plates 13 are provided with a limiting assembly 14 on the opposite sides. The limiting assembly 14 includes a plurality of pairs of limiting rollers 141 rotatably connected to the side plates 13. The plurality of pairs of limiting rollers 141 are arranged along the length direction of the side plates 13. Each pair of limiting rollers 141 clamps the adjacent gate plates 2 to limit the gate plates 2.

[0035] Reference Figure 2 , Figure 3 and Figure 4 The driving device 20 includes a first opening and closing component 3 and a first lubrication component 30. The first opening and closing component 3 includes a first moving screw rod 31 hinged to the gate plate 2 at one end and a connecting cylinder 32 rotatably connected to the door frame body 1. The other end of the first moving screw rod 31 is screwed to the connecting cylinder 32. In the embodiment of the present application, a coaxial meshing gear 33 is installed on the connecting cylinder 32, and a meshing driving gear 34 is provided on the side of the meshing gear 33. The driving gear 34 is connected to the door frame with a first driving motor 35. In addition, a first protective cover 36 covering the meshing gear 33 and the driving gear 34 is provided on the door frame to protect the meshing gear 33 and the driving gear 34.

[0036] Reference Figure 2 , Figure 3 and Figure 4 The first lubrication assembly 30 includes an oil storage barrel 301 disposed on the side of the first movable screw rod 31 and a cleaning brush 304 connected to the oil storage barrel 301. The oil storage barrel 301 is provided with a liquid outlet pipe 303 disposed opposite to the first movable screw rod 31, and the cleaning brush 304 is disposed at the liquid outlet end of the liquid outlet pipe 303. The oil storage barrel 301 is also provided with a liquid inlet valve 302, through which lubricating oil is injected into the oil storage barrel 301.

[0037] Reference Figure 2 , Figure 3 and Figure 4In the embodiment of the present application, the door frame body 1 cooperates with the liftable gate plate 2 to effectively realize the water source blocking function. The screw connection design of the first movable screw rod 31 and the connecting tube 32 in the first opening and closing component 3 ensures the stability and accuracy of the lifting and lowering of the gate plate 2. Lubricating oil is injected into the oil storage barrel 301, and the liquid outlet pipe 303 and the cleaning brush 304 in the oil storage barrel 301 in the first lubrication component 30 cooperate to provide continuous lubrication for the first movable screw rod 31 during its up and down movement, and re-coat the surface of the first movable screw rod 31 with a layer of protection to avoid poor operation caused by rust, thereby significantly improving the reliability and smoothness of the gate in long-term use.

[0038] Reference Figure 2 , Figure 3 and Figure 4 The oil storage barrel 301 is an annular tube sleeved on the first movable screw rod 31, and the liquid outlet pipe 303 and the cleaning brush 304 are both radially arranged on the inner wall of the annular tube. In the embodiment of the present application, the oil storage barrel 301 is designed as an annular tube sleeved on the first movable screw rod 31, which can ensure that the lubricating oil is evenly distributed around the first movable screw rod 31, thereby improving the comprehensiveness and efficiency of lubrication. At the same time, the liquid outlet pipe 303 and the cleaning brush 304 are both radially arranged on the inner wall of the annular tube. This layout not only facilitates the lubricating oil to directly act on the surface of the first movable screw rod 31 after flowing out of the liquid outlet pipe 303, but also can remove impurities on the surface of the first movable screw rod 31 with the help of the cleaning brush 304, thereby reducing wear and extending the service life of the first movable screw rod 31, and ensuring that the gate structure operates more smoothly and reliably.

[0039] Reference Figure 2 , Figure 3 and Figure 4 The liquid outlet pipe 303 is an elastic conical tube, and one end of the elastic conical tube with a larger diameter is connected to the oil storage barrel 301.

[0040] In the embodiment of the present application, the end of the liquid outlet pipe 303 with a smaller diameter is closed, and a slit is cut at the end of the liquid outlet pipe 303 with a knife, so that the end of the liquid outlet pipe 303 with a smaller diameter can limit the lubricating oil in the oil storage barrel 301 from coming out when no force is applied, and the end of the liquid outlet pipe 303 with a smaller diameter can squeeze out the lubricating oil in the oil storage barrel 301 when force is applied. The cleaning brush 304 removes impurities on the surface of the first movable screw 31, and deforms under force, thereby squeezing the elastic tapered tube, squeezing out the lubricating oil and contacting the cleaning brush 304, and then the cleaning brush 304 brushes the lubricating oil on the surface of the first movable screw 31 to lubricate and protect the first movable screw 31.

[0041] Reference Figure 2 , Figure 3 and Figure 4, there are multiple liquid outlet pipes 303 and cleaning brushes 304, and the multiple liquid outlet pipes 303 and the multiple cleaning brushes 304 are distributed along the circumference of the annular tube, and some cleaning brushes 304 are sandwiched between two adjacent liquid outlet pipes 303. In the embodiment of the present application, it is possible to form a multi-point lubrication and all-round cleaning effect around the first movable screw 31. Specifically, the multiple liquid outlet pipes 303 distributed along the circumference of the annular tube can ensure that the lubricating oil covers the surface of the first movable screw 31 more evenly, reduce friction resistance and prevent rust. At the same time, the multiple cleaning brushes 304 are also distributed along the circumference of the annular tube, and can effectively wipe the first movable screw 31 during its up and down movement, remove impurities and old oil film, thereby improving lubrication efficiency and extending the service life of the equipment. This design significantly improves the stability and reliability of the gate structure. Some cleaning brushes 304 are sandwiched between two adjacent liquid outlet pipes 303 to ensure that the cleaning brush 304 can effectively press the liquid outlet pipe 303 when it is bent, so that the liquid outlet pipe 303 squeezes out the lubricating liquid.

[0042] The implementation principle of a gate structure in the embodiment of the present application is: Lubricating oil is injected into the oil storage barrel 301 through the liquid inlet valve 302. When the gate plate 2 needs to be raised or lowered, the first drive motor 35 drives the connecting cylinder 32 to rotate through the transmission of the meshing gear 33 and the driving gear 34, and then the connecting cylinder 32 and the driving gear 34 are connected. The screw connection of the first movable screw rod 31 drives the first movable screw rod 31 to move up and down, so as to achieve the purpose of the first movable screw rod 31 driving the gate plate 2 to move up and down.

[0043] When the connecting cylinder 32 rotates, it can drive the first lubrication component 30 to rotate, so that the cleaning brush 304 cleans the surface of the first movable screw rod 31. At the same time, when the cleaning brush 304 is cleaning, its bristles can be deformed to press the liquid outlet pipe 303. Under the action of gravity and the pressure of the bristles, the lubricating oil can be squeezed out from the liquid outlet pipe 303. The squeezed lubricating oil contacts the cleaning brush 304 and is brushed onto the first movable screw rod 31 by the cleaning brush 304, so as to oil the surface of the first movable screw rod 31. While lubricating the first movable screw rod 31, it is also subjected to rust prevention treatment.

[0044] Embodiment 2 Reference Figure 5 and Figure 6The difference between the second embodiment and the first embodiment is that the driving device 20 includes a second opening and closing component 4 and a second lubricating component 40, the second opening and closing component 4 includes a second moving screw rod 41 rotatably connected to the door frame body 1 at one end and an internal threaded tube 42 threadedly connected to the other end of the second moving screw rod 41, and a second driving motor 43 is connected between the second moving screw rod 41 and the door frame body 1, and the second moving screw rod 41 is driven to rotate by the second driving motor 43. The internal threaded tube 42 is connected to the gate plate 2. The second lubricating component 40 includes a sleeve 401, one end of which is sleeved on the internal threaded tube 42, and the other end is connected to the door frame body 1.

[0045] Reference Figure 5 and Figure 6 In the embodiment of the present application, the second opening and closing component 4 utilizes the threaded connection between the second movable screw 41 and the internal threaded tube 42 to achieve the smooth lifting and lowering of the gate plate 2, avoiding the uneven force problem that may be caused by the traditional single threaded connection. At the same time, the sleeve 401 design in the second lubrication component 40 effectively isolates the influence of external impurities on the second movable screw 41, ensuring that the second movable screw 41 can run smoothly for a long time. Specifically, the threaded transmission between the second movable screw 41 and the internal threaded tube 42 improves the reliability of the system, and the protective effect of the sleeve 401 further enhances the durability and smooth operation of the entire drive device 20.

[0046] Reference Figure 5 and Figure 6 , the second movable screw rod 41 is connected to the door frame body 1 in a dynamic sealing manner. The sleeve 401 is connected to the internal threaded tube 42 in a dynamic sealing manner. An oil storage tube 404 is provided on the gate plate 2, one end of the oil storage tube 404 is closed, and the other end has an opening, and a piston 405 is provided inside the open end of the oil storage tube 404. A first liquid exchange tube 402 is provided inside the tube wall of the internal threaded tube 42, and the first liquid exchange tube 402 extends from the end surface of the internal threaded tube 42 away from the gate plate 2 to the inner wall of the end of the internal threaded tube 42 close to the gate plate 2. The end of the internal threaded tube 42 close to the gate plate 2 is connected to the closed end of the oil storage tube 404 with a second liquid exchange tube 403.

[0047] Reference Figure 5 and Figure 6 In the embodiment of the present application, a dynamic sealing connection is achieved between the second movable screw rod 41 and the internally threaded tube 42, further effectively preventing the entry of foreign matter. Since the second movable screw rod 41 is in a sealed space at this time, in order for the second movable screw rod 41 to operate effectively, the oil storage tube 404, the first liquid exchange tube 402 and the second liquid exchange tube 403 form a system for balancing air pressure. When the second movable screw rod 41 is raised or lowered, the piston 405 also moves in the oil storage tube 404 to balance the air pressure inside the sleeve 401 and the internally threaded tube 42.

[0048] Reference Figure 5 and Figure 6 , the oil storage tube 404 is filled with lubricating oil. In the embodiment of the present application, the lubricating oil in the oil storage tube 404 can be transported to the internal threaded tube 42 through the second liquid exchange tube 403 through the action of the piston 405, and refluxed through the first liquid exchange tube 402 to form a circulating lubrication path, reduce wear and extend the life of components. When the second movable screw 41 is able to move away from the gate 2, an oil pumping action can be formed, and then the lubricating oil is pumped into the internal threaded tube 42 and the sleeve 401, and the two ends of the second movable screw 41 are performed to ensure that the lubrication effect is long-lasting and stable. The dynamic seal design cooperates with the lubricating oil circulation mechanism, which significantly improves the smoothness of the gate opening and closing process and reduces the maintenance frequency.

[0049] Reference Figure 5 and Figure 6 The open end of the oil storage pipe 404 is provided with a protective cover 406, and the protective cover 406 is provided with a constant pressure valve 407. In the embodiment of the present application, the open end of the oil storage pipe 404 is effectively protected, and the stability of the internal pressure of the oil storage pipe 404 is ensured.

[0050] The implementation principle of a gate structure in the embodiment of the present application is: The second moving screw rod 41 is driven to rotate by the second driving motor 43 to achieve the purpose of driving the gate plate 2 to rise and fall.

[0051] When the second lubrication assembly 40 is in operation, a proper amount of lubricating oil is injected into the oil storage pipe 404 in advance. The lubricating oil in the oil storage pipe 404 can be transported to the internal threaded tube 42 through the second liquid exchange tube 403 through the action of the piston 405, and refluxed through the first liquid exchange tube 402 to form a circulating lubrication path, reduce wear and extend the life of components. When the second movable screw 41 can be away from the gate 2, an oil pumping action can be formed, and then the lubricating oil is pumped into the internal threaded tube 42 and the sleeve 401, and the two ends of the second movable screw 41 are performed to ensure that the lubrication effect is long-lasting and stable. The dynamic seal design cooperates with the lubricating oil circulation mechanism, which significantly improves the smoothness of the gate opening and closing process and reduces the maintenance frequency.

[0052] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0053] The above are all optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A gate structure, characterized in that: It comprises a door frame body (1), a gate plate (2) and a driving device (20), wherein the gate plate (2) is mounted on the door frame body (1) in a liftable manner; The driving device (20) comprises a first opening and closing component (3) and a first lubrication component (30), wherein the first opening and closing component (3) comprises a first movable screw rod (31) having one end hinged to the gate plate (2) and a connecting tube (32) rotatably connected to the door frame body (1), and the other end of the first movable screw rod (31) is threadedly connected to the connecting tube (32); The first lubrication assembly (30) comprises an oil storage barrel (301) arranged on the side of the first movable screw (31) and a cleaning brush (304) connected to the oil storage barrel (301); the oil storage barrel (301) is provided with a liquid outlet pipe (303) arranged opposite to the first movable screw (31); and the cleaning brush (304) is arranged at the liquid outlet end of the liquid outlet pipe (303).

2. A gate structure according to claim 1, characterized in that: The oil storage barrel (301) is an annular tube sleeved on the first movable screw rod (31), and the liquid outlet pipe (303) and the cleaning brush (304) are both radially arranged on the inner wall of the annular tube.

3. A gate structure according to claim 2, characterized in that: The liquid outlet pipe (303) is an elastic conical tube, and the end of the elastic conical tube with a larger diameter is connected to the oil storage barrel (301).

4. A gate structure according to claim 3, characterized in that: There are multiple liquid outlet pipes (303) and multiple cleaning brushes (304), and the multiple liquid outlet pipes (303) and the multiple cleaning brushes (304) are distributed along the circumference of the annular tube.

5. A gate structure according to claim 4, characterized in that: A portion of the cleaning brush (304) is sandwiched between two adjacent liquid outlet pipes (303).

6. A gate structure according to claim 1, characterized in that: The driving device (20) comprises a second opening and closing component (4) and a second lubrication component (40); the second opening and closing component (4) comprises a second movable screw rod (41) having one end rotatably connected to the door frame body (1) and an internally threaded tube (42) threadedly connected to the other end of the second movable screw rod (41); the internally threaded tube (42) is connected to the gate plate (2); The second lubrication assembly (40) comprises a sleeve (401), one end of the sleeve (401) being sleeved on the internal threaded tube (42), and the other end of the sleeve being connected to the door frame body (1).

7. A gate structure according to claim 6, characterized in that: The second movable screw rod (41) is dynamically sealedly connected to the door frame body (1); the sleeve (401) is dynamically sealedly connected to the internally threaded tube (42); An oil storage pipe (404) is provided on the gate plate (2), one end of the oil storage pipe (404) is closed and the other end has an opening, and a piston (405) is provided inside the open end of the oil storage pipe (404); A first liquid exchange pipe (402) is provided in the pipe wall of the internally threaded pipe (42), and the first liquid exchange pipe (402) extends from an end surface of the internally threaded pipe (42) away from the gate plate (2) to an inner wall of an end of the internally threaded pipe (42) close to the gate plate (2); One end of the internally threaded tube (42) close to the gate plate (2) and the closed end of the oil storage tube (404) are connected to a second liquid exchange tube (403).

8. A gate structure according to claim 7, characterized in that: The oil storage pipe (404) is filled with lubricating oil.

9. A gate structure according to claim 8, characterized in that: The open end of the oil storage pipe (404) is provided with a protective cover (406), and the protective cover (406) is provided with a constant pressure valve (407).

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