Lubricant filling device for crane inspection

Abstract

The utility model discloses a lubricant filling device for crane inspection, which comprises a filling pipe and an L-shaped supporting seat, a suction mechanism is movably sleeved in the filling pipe in a sealing manner and is used for adding lubricant or water into the filling pipe, the top end of the filling pipe is provided with an opening and is fixedly connected with a cover plate, and the L-shaped supporting seat is fixedly connected with the cover plate. The bottom end of the filling pipe is of a conical opening structure, the bottom end of the filling pipe communicates with and is fixedly provided with a branch injection mechanism, the branch injection mechanism is used for adding a lubricant to the position where the lubricant is to be filled, and the branch injection mechanism is sleeved with the L-shaped supporting seat. Through the arrangement of a series of structures, lubricating agents and water can be continuously sucked, injected and discharged, a worker does not need to pull out the piston to add liquid again after one pipe is injected every time, and compared with a pull-out adding mode, the operation is simple and convenient, so that the working efficiency can be improved, the lubricating agents can be added to multiple positions at the same time, and the labor intensity of workers is reduced. Therefore, the filling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lubricant filling equipment, in particular to a lubricant filling device for crane inspection. Background Technique

[0002] A crane refers to a lifting machine that vertically lifts and horizontally transports heavy goods within a certain range, also known as a hoist. Generally, it can be divided into four categories: light and small lifting equipment, bridge-type lifting machinery, jib-type cranes, and cableway cranes. A crane can lift and vertically transport heavy objects, mainly through internal mechanical transmission. According to the drive method classification, medium and small bridge cranes mostly adopt the "three-in-one" drive method of combining a brake, a reducer, and an electric motor. To ensure the normal operation of the crane and avoid potential safety hazards during work, safety inspections of general components are required. Among them, it is necessary to check whether there are abnormal sounds such as severe metal friction sounds and vibrations when the reducer is running. To ensure the internal operation of the reducer, lubricant needs to be added to the inside of the reducer to ensure that the lubrication of the open gears inside the reducer meets the requirements. When adding lubricant, a lubricant filling device is required. According to the retrieval report of the novelty search agency, the application number: 202420439950.3 discloses a lubricant filling device for crane inspection, which relates to the technical field of crane maintenance; it includes: a water tank, one side of the water tank is fixedly provided with a support plate, and the surface of the support plate is provided with insertion holes at equal intervals from top to bottom; a U-shaped plate is fixedly provided on the side of the water tank away from the support plate, and a rotating rod is rotatably connected between the inner side walls of the U-shaped plate. An injection barrel is fixedly provided in the middle of the rotating rod, and a first water valve is arranged at the injection end of the injection barrel; through the combined design of the water tank, the U-shaped plate, the sliding plug, the guiding member, and the locking member, the addition and cleaning of the inner wall of the injection barrel can be completed through the movement of the sliding plug, avoiding the problem of a large amount of lubricating fluid remaining in the traditional filling method, reducing environmental pollution and waste of lubricant. At the same time, the device has a reasonable structure design and is easy to operate. Just push the push rod to complete the filling of the lubricant, which is convenient and fast;

[0003] The lubricant filling device for crane inspection disclosed in the above patent still has some deficiencies in the process of use: 1. When adding lubricant and cleaning water, the sliding plug needs to be pulled out to complete the addition. This way of pulling out the sliding plug for addition is relatively cumbersome. When a large amount of lubricant needs to be filled, the sliding plug needs to be pulled out and inserted multiple times to complete the lubricant filling work, resulting in low work efficiency. It cannot continuously suck lubricant and water without pulling out and inserting the sliding plug; 2. The setting of a single guiding pipe and a feeding pipe can only complete the lubricant filling work at one place at a time, resulting in low filling efficiency. Considering the above situation, the above patent is redesigned, and this application proposes a lubricant filling device for crane inspection. Content of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a lubricant filling device for crane inspection.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A lubricant filling device for crane inspection includes a filling pipe and an L-shaped support seat. A suction mechanism is provided in the sealing movable sleeve of the filling pipe. The suction mechanism is used to inject lubricant or water into the filling pipe. The top of the filling pipe is set as an opening and is fixedly connected to a cover plate. The bottom end of the filling pipe is set as a conical opening structure. The bottom end of the filling pipe is connected and fixed with a branch injection mechanism. The branch injection mechanism is used to add lubricant to the position where the lubricant is to be filled. The L-shaped support seat is set on the branch injection mechanism. The right inner wall of the L-shaped support seat and the filling pipe are fixedly installed. There is a same supporting mechanism, which is used to support the filling pipe. The left top of the filling pipe is connected to and fixed with a vent valve. The setting of the vent valve can open the vent valve to realize ventilation inside the filling pipe during the process of draining the lubricant and water. The right top of the filling pipe is connected to and fixed with an extraction mechanism. The right side of the L-shaped support seat is fixedly connected to the lubricant tank, and the right side of the lubricant tank is fixedly connected to the water tank. The lubricant tank and the water tank are both mounted on the extraction mechanism, and the extraction mechanism is used to extract the lubricant inside the lubricant tank and the water inside the water tank.

[0007] Preferably, the suction mechanism includes a piston that is sealingly movably sleeved in the filling pipe. The piston generates suction force during its movement inside the filling pipe. A first one-way valve with an outlet at the bottom is embedded and fixed on the left side of the top of the piston. The setting of the first one-way valve allows the liquid at the top of the piston to be discharged to the bottom of the piston. A push rod is fixedly connected to the top of the piston, and the top of the push rod extends to the top of the cover plate and is fixedly connected to a pull ring. The cover plate sealing sleeve is arranged on the push rod. The push rod and the pull ring cooperate to drive the piston up and down with the help of manpower.

[0008] Preferably, the branch injection mechanism includes a connecting pipe connected and fixed to the bottom of the filling pipe, the top end of the connecting pipe is fixedly connected to the second one-way valve located in the filling pipe, the setting of the second one-way valve can prevent the discharged liquid from moving back during the upward movement of the piston, the bottom of the second one-way valve is set as an outlet, the bottom end and both sides of the connecting pipe are connected and fixed with the first valve, the two first valves on both sides are connected and fixed on the side away from each other, the bottom end of the L-shaped tube and the bottom end of the first valve in the middle are connected and fixed with the first telescopic hose, the bottom end of the first telescopic hose is connected and fixed with the injection head, The telescopic characteristics of the first telescopic hose can be used to move the injection head at will, thereby improving the flexibility of use. The bottom end of the injection head is set to a conical opening structure, and a magnet ring is fixed on the injection head. A plurality of storage grooves are provided on the bottom inner wall of the L-shaped support seat. The injection head is movably sleeved in the corresponding storage grooves, and the storage grooves are used to store and protect the injection head. The L-shaped support seat is made of iron, and the magnet ring is magnetically fixed to the bottom inner wall of the L-shaped support seat. The adsorption force between the magnet ring and the L-shaped support seat can be used to fix the injection head, and the magnet ring can be magnetically attracted to the position where the lubricant is added to fix the injection head.

[0009] Preferably, the support mechanism includes a support frame fixedly connected to the right inner wall of the L-shaped support seat, the support frame is sleeved on the filling pipe, and a support ring is fixedly sleeved on the filling pipe. The bottom of the support ring is in movable contact with the top of the support frame, and the support ring and the support frame cooperate to support the filling pipe.

[0010] Preferably, the extraction mechanism includes an L-shaped tube connected and fixed to the top right side of the filling pipe, the left end of the L-shaped tube is connected and fixed to a third one-way valve with an outlet on the left side, the bottom end of the L-shaped tube is connected and fixed to a second telescopic hose, and the telescopic characteristics of the second telescopic hose are used to provide the L-shaped tube with a movable distance, the bottom end and the right bottom of the second telescopic hose are connected and fixed to a second valve, the bottom of the second valve below is connected and fixed to a lubricant extraction tube, the bottom end of the lubricant extraction tube extends into the lubricant tank, and the right side of the second valve on the right side is connected and fixed to an L-shaped water suction pipe, the two second valves are provided for controlling the connection between the lubricant extraction tube and the L-shaped water suction pipe, the bottom end of the L-shaped water suction pipe extends into the water tank, and the lubricant tank and the water tank are fixedly mounted on the lubricant extraction tube and the L-shaped water suction pipe respectively.

[0011] Preferably, a sealing ring is provided on the fixed sleeve of the piston, the outer side of the sealing ring is in movable contact with the inner wall of the filling pipe, and a sealed connection between the piston and the filling pipe is achieved through the sealing ring. The outer side of the push rod is bonded and covered with a sealing rubber. A through hole is provided on the top of the cover plate, and the inner wall of the through hole is in movable contact with the outer side of the sealing rubber, and a sealed connection between the push rod and the through hole is achieved through the sealing rubber.

[0012] Preferably, the top left side of the lubricant box and the top right side of the water tank are both connected and fixed with adding valves, through which lubricant can be added to the lubricant box and water can be added to the water tank.

[0013] Compared with the existing technology, the beneficial effects of the utility model are:

[0014] 1. Through the coordination of the suction mechanism, vent valve, extraction mechanism, lubricant tank and water tank, the lubricant can be continuously circulated and sucked when multiple tubes of lubricant need to be filled, and the water can be continuously circulated and sucked during cleaning. There is no need for personnel to pull out the piston and refill the liquid after each tube filling. Compared with the pull-out and refilling method, the operation is simpler, thereby improving work efficiency.

[0015] 2. Through the setting of the branch injection mechanism, multiple injection heads can be inserted into the corresponding lubricant filling positions, and lubricant can be added to multiple locations at the same time, thereby improving the filling efficiency;

[0016] The utility model is capable of continuously sucking, filling and discharging lubricants and water through the arrangement of a series of structures. There is no need for personnel to pull out the piston and re-add liquid after each filling of a tube. Compared with the pulling-out and adding method, the utility model is simpler to operate, thereby improving work efficiency, and can add lubricants to multiple places at the same time, thereby improving filling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a lubricant filling device for crane inspection proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of a lubricant filling device for crane inspection proposed by the utility model;

[0019] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A.

[0020] In the figure: 1. L-shaped support base; 101. Storage groove; 2. Filling pipe; 3. First telescopic hose; 4. Magnet ring; 5. Injection head; 6. Support frame; 7. Support ring; 8. Vent valve; 9. L-shaped pipe; 10. Third one-way valve; 11. Second telescopic hose; 12. Lubricant tank; 13. Water tank; 14. Second valve; 15. Lubricant extraction pipe; 16. L-shaped water extraction pipe; 17. Push rod; 18. Piston; 19. First one-way valve; 20. Second one-way valve; 21. First valve; 22. Connecting pipe. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-3 A lubricant filling device for crane inspection includes a filling pipe 2 and an L-shaped support seat 1. A suction mechanism is provided in a sealing sleeve inside the filling pipe 2. The top of the filling pipe 2 is set as an opening and fixedly connected to a cover plate. The suction mechanism includes a piston 18 with a sealing sleeve arranged in the filling pipe 2, wherein a sealing ring is fixedly provided on the piston 18. The outer side of the sealing ring is in movable contact with the inner wall of the filling pipe 2. The sealing connection between the piston 18 and the filling pipe 2 is achieved through the sealing ring. The piston 18 generates a suction force during the movement inside the filling pipe 2. A first valve with an outlet at the bottom is fixedly installed on the left side of the top of the piston 18. One-way valve 19: The setting of the first one-way valve 19 allows the liquid on the top of the piston 18 to be discharged to the bottom of the piston 18. The top of the piston 18 is fixedly connected to the push rod 17. The top of the push rod 17 extends to the top of the cover plate and is fixedly connected to the pull ring. The cover plate is sealingly and movably sleeved on the push rod 17, wherein the outer side of the push rod 17 is bonded and covered with a sealing rubber. A through hole is opened on the top of the cover plate. The inner wall of the through hole is in movably contact with the outer side of the sealing rubber. The sealing rubber realizes the sealing connection between the push rod 17 and the through hole. The push rod 17 and the pull ring cooperate to drive the piston 18 up and down with the help of manpower.

[0023] The bottom end of the filling pipe 2 is set to a conical opening structure, and the bottom end of the filling pipe 2 is connected and fixed with a branch injection mechanism. The L-shaped support seat 1 is sleeved on the branch injection mechanism. The branch injection mechanism includes a connecting pipe 22 connected and fixed to the bottom of the filling pipe 2. The top end of the connecting pipe 22 is fixedly connected to the second one-way valve 20 located in the filling pipe 2. The setting of the second one-way valve 20 can prevent the discharged liquid from moving back during the upward movement of the piston 18. The bottom of the second one-way valve 20 is set as an outlet. The bottom end and both sides of the connecting pipe 22 are connected and fixed with a first valve 21. The two first valves 21 on both sides are connected and fixed on the side away from each other with an L-shaped pipe, and the bottom end of the L-shaped pipe and the bottom end of the middle first valve 21 are connected and fixed with a first telescopic hose 3. The bottom end of the first telescopic hose 3 is connected and fixed with an injection head 5. The telescopic characteristics of the first telescopic hose 3 can be used to move the injection head 5 at will, thereby improving the flexibility of use. The bottom end of the injection head 5 is set as a conical opening structure. A magnet ring 4 is fixedly sleeved on the injection head 5. A plurality of receiving grooves 101 are opened on the bottom inner wall of the L-shaped support base 1. The injection head 5 is movably sleeved in the corresponding receiving grooves 101. The receiving grooves 101 are used to store and protect the injection head 5. The L-shaped support base 1 is made of iron. The magnet ring 4 is magnetically fixed to the bottom inner wall of the L-shaped support base 1. The adsorption force between the magnet ring 4 and the L-shaped support base 1 can be used to fix the injection head 5, and the magnet ring 4 can be magnetically attracted to the position where the lubricant is added to fix the injection head 5.

[0024] The same supporting mechanism is fixedly installed on the right inner wall of the L-shaped support seat 1 and the filling pipe 2. The supporting mechanism includes a supporting frame 6 fixedly connected to the right inner wall of the L-shaped support seat 1. The supporting frame 6 is sleeved on the filling pipe 2. The inner diameter of the supporting frame 6 is larger than the distance between the two sides of the L-shaped pipes away from each other. The supporting frame 6 can allow the branch injection mechanism to pass through. A supporting ring 7 is fixedly sleeved on the filling pipe 2. The bottom of the supporting ring 7 is in active contact with the top of the supporting frame 6. The supporting ring 7 and the supporting frame 6 cooperate to support the filling pipe 2.

[0025] The top left side of the filling pipe 2 is connected to a vent valve 8, which can be opened to ventilate the inside of the filling pipe 2 during the process of draining the lubricant and water. The top right side of the filling pipe 2 is connected to an extraction mechanism, the right side of the L-shaped support base 1 is fixedly connected to a lubricant tank 12, and the right side of the lubricant tank 12 is fixedly connected to a water tank 13. The top left side of the lubricant tank 12 and the top right side of the water tank 13 are both connected to a fixed adding valve, through which the lubricant can be added to the lubricant tank 1. 2, and water is added to the water tank 13. The lubricant tank 12 and the water tank 13 are both mounted on the extraction mechanism. The extraction mechanism includes an L-shaped tube 9 connected and fixed to the top right side of the filling pipe 2. The left end of the L-shaped tube 9 is connected and fixed to a third one-way valve 10 with the left side as the outlet. The bottom end of the L-shaped tube 9 is connected and fixed to a second telescopic hose 11. The telescopic characteristics of the second telescopic hose 11 provide the L-shaped tube 9 with a movable distance. The bottom end of the second telescopic hose 11 and the right bottom are both connected and fixed to a second valve. The bottom of the second valve 14 below is connected to a lubricant extraction pipe 15, and the bottom end of the lubricant extraction pipe 15 extends into the lubricant tank 12. The right side of the second valve 14 on the right is connected to an L-shaped water extraction pipe 16. The two second valves 14 are set to control the communication between the lubricant extraction pipe 15 and the L-shaped water extraction pipe 16. The bottom end of the L-shaped water extraction pipe 16 extends into the water tank 13. The lubricant tank 12 and the water tank 13 are fixedly mounted on the lubricant extraction pipe 15 and the L-shaped water extraction pipe 16 respectively. 6, the lubricant extraction pipe 15 and the L-shaped water extraction pipe 16 are used to extract the lubricant in the lubricant box 12 and the water in the water tank 13 respectively; the utility model can continuously suck and fill and discharge the lubricant and water through the arrangement of a series of structures, and does not require personnel to pull out the piston 18 and re-add liquid after each filling of a tube. Compared with the pull-out and add method, the operation is simpler, thereby improving work efficiency, and can add lubricant to multiple places at the same time, thereby improving filling efficiency.

[0026] Working principle: When in use, when lubricant needs to be added during the inspection of the crane, first remove the filling pipe 2 from the support frame 6, and pull the magnet ring 4 upward to separate it from the bottom inner wall of the L-shaped support seat 1. The magnet ring 4 drives the corresponding adding head 5 to be moved out of the receiving groove 101. After moving out, insert the injection head 5 into the position where lubricant is to be added. If multiple fillings are required, insert multiple injection heads 5 into the corresponding positions respectively, and open the corresponding first valve 21 connected to the injection head 5, then open the second valve 14 below, and push the push rod 17 downward through the pull ring to drive the piston 18 to move downward. The piston 18 pushes the gas inside the filling pipe 2 downward. When the piston 18 moves downward, a suction force is generated on the upper inner part of the filling pipe 2. Under the suction force, the lubricant inside the lubricant tank 12 is extracted, so that the lubricant passes through the lubricant extraction pipe 15 in turn. , the second valve 14 at the bottom, the second telescopic hose 11, the L-shaped tube 9 and the third one-way valve 10 enter the filling pipe 2. When the piston 18 moves downward to the lowest point, a single suction of the lubricant in the lubricant tank 12 is completed. Then, the pull ring is pulled upward, causing the piston 18 to move upward. The piston 18 squeezes the lubricant in the filling pipe 2 upward. Under the squeezing force, the lubricant enters the bottom of the piston 18 through the first one-way valve 19. When the piston 18 moves downward again, the lubricant at its bottom is squeezed. Under the squeezing force, the lubricant is discharged in sequence through the second one-way valve 20, the connecting pipe 22, the first valve 21, the first telescopic hose 3 and the injection head 5 to the position where lubricant needs to be added, thereby completing the filling of the lubricant. By providing multiple injection heads 5, lubricant can be added to multiple locations at the same time, thereby improving the filling efficiency;

[0027] If only one tube of lubricant needs to be filled, after completing a single suction of the lubricant inside the lubricant box 12, the second valve 14 at the bottom is closed. If one tube of lubricant cannot be completely filled and needs to be continued to be filled, after a single suction, there is no need to close the second valve 14 at the bottom. When the piston 18 moves downward to squeeze the lubricant below, the top of the piston 18 continues to generate a suction force to continue sucking the lubricant inside the lubricant box 12. When the piston 18 moves upward again, the sucked lubricant is squeezed again to the bottom thereof to continue the filling work. This method of circulating the lubricant suction does not require personnel to pull out the piston 18 and refill it after each filling of a tube. The operation is relatively simple, thereby improving work efficiency.

[0028] When cleaning is needed after adding, when the piston 18 moves upward to the highest position, the second valve 14 below is closed, and the vent valve 8 is opened. When the piston 18 moves downward to squeeze and discharge the lubricant inside the filling pipe 2, the upper part of the piston 18 generates a suction force to extract the external gas through the vent valve 8, thereby realizing the communication inside the filling pipe 2. After the lubricant is squeezed out, the injection head 5 is pulled out from the filling position and placed in the sewage tank. The piston 18 is pulled upward to the highest point, and the second valve 14 on the right is opened, and the vent valve 8 is closed. When the piston 18 moves downward again, the water inside the water tank 13 can be sucked, so that the water inside the water tank 13 enters the filling pipe 2 through the L-shaped water pumping pipe 16, the second valve 14 on the right, the second telescopic hose 11, the L-shaped tube 9 and the third one-way valve 10 in turn. When the piston 18 moves upward and downward again When the water in the filling pipe 2 is filled, the water is squeezed out, so that the water is discharged into the water tank through the second one-way valve 20, the connecting pipe 22, the first valve 21, the first telescopic hose 3 and the injection head 5 in sequence, thereby completing the cleaning of the filling pipe 2, the second one-way valve 20, the connecting pipe 22, the first valve 21, the first telescopic hose 3 and the injection head 5. After several cycles of suction, the filling pipe 2, the second one-way valve 20, the connecting pipe 22, the first valve 21, the first telescopic hose 3 and the injection head 5 can be cleaned, and the circulation suction effect can still be achieved during the process of pumping water for cleaning. There is no need for personnel to pull out the piston 18 and re-add it after each filling of a tube of water. The operation is relatively simple. After cleaning, the filling pipe 2 can be inserted into the support frame 6 to cooperate with the support ring 7 for support, and the injection head 5 can be inserted into the corresponding storage groove 101 to complete storage and wait for the next use.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lubricant filling device for crane inspection, comprising a filling pipe (2) and an L-shaped support seat (1), characterized in that: The sealing movable sleeve inside the filling pipe (2) is provided with a suction mechanism, the top end of the filling pipe (2) is set as an opening and fixedly connected to a cover plate, the bottom end of the filling pipe (2) is set as a conical opening structure, the bottom end of the filling pipe (2) is connected and fixed with a branch injection mechanism, the L-shaped support seat (1) is sleeved on the branch injection mechanism, the right inner wall of the L-shaped support seat (1) and the filling pipe (2) are fixedly mounted with the same support mechanism, the left top end of the filling pipe (2) is connected and fixed with a vent valve (8), the right top end of the filling pipe (2) is connected and fixed with an extraction mechanism, the right side of the L-shaped support seat (1) is fixedly connected to a lubricant tank (12), the right side of the lubricant tank (12) is fixedly connected to a water tank (13), and the lubricant tank (12) and the water tank (13) are both sleeved on the extraction mechanism.

2. A lubricant filling device for crane inspection according to claim 1, characterized in that: The suction mechanism comprises a piston (18) which is sealably sleeved in a filling pipe (2); a first one-way valve (19) with an outlet at the bottom is fixedly embedded on the left side of the top of the piston (18); a push rod (17) is fixedly connected to the top of the piston (18); the top end of the push rod (17) extends to the top of the cover plate and is fixedly connected to a pull ring; the cover plate sealably sleeves on the push rod (17).

3. The lubricant filling device for crane inspection according to claim 1, characterized in that: The branch injection mechanism comprises a connecting pipe (22) connected and fixed at the bottom of the filling pipe (2); the top end of the connecting pipe (22) is fixedly connected to a second one-way valve (20) located in the filling pipe (2); the bottom of the second one-way valve (20) is set as an outlet; the bottom end of the connecting pipe (22) and both sides are connected and fixed with a first valve (21); the two first valves (21) on both sides are connected and fixed on the sides away from each other, and the bottom end of the L-shaped pipe and the bottom end of the middle first valve (21) are connected A first telescopic hose (3) is fixed therethrough, and an injection head (5) is connected and fixed to the bottom end of the first telescopic hose (3), the bottom end of the injection head (5) is set as a conical opening structure, a magnet ring (4) is fixedly sleeved on the injection head (5), a plurality of receiving grooves (101) are opened on the bottom inner wall of the L-shaped support base (1), and the injection head (5) is movably sleeved in the corresponding receiving grooves (101), the L-shaped support base (1) is made of iron, and the magnet ring (4) is magnetically fixed to the bottom inner wall of the L-shaped support base (1).

4. A lubricant filling device for crane inspection according to claim 1, characterized in that: The support mechanism comprises a support frame (6) fixedly connected to the right inner wall of the L-shaped support seat (1); the support frame (6) is sleeved on the filling pipe (2); a support ring (7) is fixedly sleeved on the filling pipe (2); the bottom of the support ring (7) is in movable contact with the top of the support frame (6).

5. The lubricant filling device for crane inspection according to claim 1, characterized in that: The extraction mechanism comprises an L-shaped tube (9) connected and fixed to the top right side of the filling pipe (2); the left end of the L-shaped tube (9) is connected and fixed with a third one-way valve (10) with the left side as an outlet; the bottom end of the L-shaped tube (9) is connected and fixed with a second telescopic hose (11); the bottom end of the second telescopic hose (11) and the right bottom are both connected and fixed with a second valve (14); the bottom of the lower second valve (14) is connected and fixed with a lubricant extraction tube (15); the bottom end of the lubricant extraction tube (15) extends into the lubricant tank (12); the right side of the right second valve (14) is connected and fixed with an L-shaped water extraction tube (16); the bottom end of the L-shaped water extraction tube (16) extends into the water tank (13); the lubricant tank (12) and the water tank (13) are respectively fixedly mounted on the lubricant extraction tube (15) and the L-shaped water extraction tube (16).

6. The lubricant filling device for crane inspection according to claim 2, characterized in that: A sealing ring is fixedly sleeved on the piston (18), the outer side of the sealing ring is in active contact with the inner wall of the filling pipe (2), the outer side of the push rod (17) is bonded and covered with a sealing rubber, a through hole is opened on the top of the cover plate, and the inner wall of the through hole is in active contact with the outer side of the sealing rubber.

7. The lubricant filling device for crane inspection according to claim 1, characterized in that: The left side of the top of the lubricant tank (12) and the right side of the top of the water tank (13) are both connected and fixed with a filling valve.

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