Auxiliary tool for dismounting hydraulic hoist oil cylinder
By designing auxiliary tools for disassembling hydraulic gate cylinders, and using support and clamping components to stably support the cylinders, the problem of difficult on-site disassembly is solved, achieving efficient disassembly and installation, and reducing transportation and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SOUTH TO NORTH WATER SHANDONG LINE CORP
- Filing Date
- 2025-06-12
- Publication Date
- 2026-07-07
AI Technical Summary
The sealing parts of the hydraulic gate hoist cylinder are prone to oil leakage, which means that maintenance must be carried out in a clean room. On-site disassembly of the cylinder and cylinder chassis support is difficult and can easily damage the piston rod, increasing transportation and maintenance costs.
Design an auxiliary tool for disassembling the hydraulic cylinder of a hydraulic gate hoist, including a support and a clamping component. Through the cooperation of the support and clamping component, the hydraulic cylinder is stably supported, the force on the piston lug is reduced, and the hydraulic cylinder is efficiently separated from the hydraulic cylinder chassis support.
It eliminates the need for complete dismantling, improving dismantling and installation efficiency, reducing maintenance costs, facilitating transportation, reducing stress on the piston lifting lugs, and simplifying on-site operations.
Smart Images

Figure CN224464558U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic gate hoist cylinder technology, and in particular to an auxiliary tool for disassembling hydraulic gate hoist cylinders. Background Technology
[0002] The hydraulic cylinders of the Wannianzha pump station are prone to oil leakage at their sealing points. Replacing these cylinder seals requires a cleanroom environment, necessitating factory maintenance. However, on-site dismantling of the cylinders is hampered by construction constraints, making separation from the cylinder chassis support difficult. This is primarily because, under load, the piston lugs of the cylinder cannot be effectively secured; forcibly removing them could easily damage the piston rod, affecting the cylinder's normal operation. Therefore, maintenance personnel are forced to dismantle the cylinder and chassis support as a whole, transporting it to a repair shop for disassembly. This significantly complicates transportation and equipment reassembly, increasing maintenance costs. Utility Model Content
[0003] To overcome the shortcomings of existing technologies, this utility model provides an auxiliary tool for disassembling hydraulic gate hoist cylinders. It features a reasonable structural design and convenient operation, allowing for efficient separation of the cylinder from its chassis support without requiring complete disassembly. During cylinder disassembly, it provides stable support, significantly reducing the stress on the piston lugs and making them easier to disassemble. This improves disassembly and installation efficiency, facilitates subsequent transportation operations, reduces maintenance costs, and solves the problems existing in the prior art.
[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:
[0005] An auxiliary tool for disassembling the cylinder of a hydraulic gate hoist includes a support component. The support component comprises symmetrically arranged semi-circular support plates on both sides. The front and rear sides of the two semi-circular support plates are connected by support connecting plates. A gantry bracket is vertically mounted on each of the two support connecting plates. Two vertical beams of the gantry bracket are respectively fixed to the corresponding semi-circular support plate. A clamping component that cooperates with the support component is provided between the two gantry brackets. The lower part of the clamping component is movably engaged with the upper part of the support component inside the gantry bracket. The clamping component includes symmetrically arranged semi-circular clamping plates on both sides. The front and rear sides of the clamping plate are connected by clamping connecting plates. The outer side of the clamping connecting plate extends horizontally to form a semi-circular clamping plate, which is movably engaged between the two vertical beams of the corresponding gantry bracket. The inner radius of the semi-circular support plate is the same as the inner radius of the semi-circular clamping plate. The two semi-circular clamping plates are connected in the middle by a lifting plate. A lifting seat is provided in the middle of the surface of the lifting plate. A lifting member that cooperates with the lifting seat is provided between the two gantry brackets. A pressing mechanism that cooperates with the clamping connecting plate on the corresponding side is provided on each of the two gantry brackets. The crossbeams of the two gantry brackets are connected by a locking member.
[0006] Optionally, the pressing mechanism includes a pressing plate horizontally disposed between two vertical beams of the gantry bracket. A slot is provided in the pressing plate at the corresponding middle position. Slide grooves are provided on the side walls of the two vertical beams on opposite sides along their height direction. The pressing plate is engaged in the slide groove on the corresponding side by sliders disposed at its left and right ends. A screw is vertically disposed in the gantry bracket. The upper end of the screw is threaded through the middle of the crossbeam of the gantry bracket and connected to the rotating rod. Its lower end moves through the surface of the pressing plate and is engaged in the slot of the pressing plate by a chuck.
[0007] Optionally, the lifting component includes a vertically arranged lifting rod, the lower end of which is threaded into the threaded groove of the lifting seat, and the upper end of which extends out of the gantry bracket and is connected to the lifting lug.
[0008] Optionally, the locking component includes wedge-shaped grooves arranged horizontally on the inner walls of the two gantry support beams, and locking plates symmetrically arranged horizontally on the left and right sides of the boom. The locking plates are engaged in the wedge-shaped grooves on the corresponding side by wedge blocks arranged on their front and rear sides. A notch is provided on the side wall of the locking plate on the corresponding boom side, and a flange is provided around the boom at the position of the notch. An arc-shaped groove that matches the flange is provided along the arc length of the notch.
[0009] Optionally, a number of supporting reinforcing ribs are provided at intervals along the arc length between the two semicircular supporting plates, and each supporting reinforcing rib is connected to the semicircular supporting plate on the corresponding side.
[0010] Optionally, a number of clamping reinforcing ribs are provided at intervals along the arc length between the two semicircular clamping plates, and each clamping reinforcing rib is connected to the semicircular clamping plate on the corresponding side.
[0011] The advantages of this utility model using the above-mentioned technical solution are: reasonable structural design, convenient operation, no need to disassemble the whole, can efficiently complete the separation of the oil cylinder and the oil cylinder chassis support, provide stable support for the oil cylinder during the disassembly process, greatly reduce the stress on the piston lifting lug, make the piston lifting lug easier to disassemble, thereby improving disassembly and installation efficiency, facilitating subsequent transportation operations, and reducing maintenance costs. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0013] Figure 2 A three-dimensional structural diagram of the support components and gantry frame;
[0014] Figure 3 This is a three-dimensional structural diagram of the clamping component;
[0015] Figure 4 This is a three-dimensional structural diagram of the screw and rotating rod;
[0016] Figure 5 This is a schematic diagram of the three-dimensional structure of the lower pressure plate;
[0017] Figure 6 A three-dimensional structural diagram of the lifting rod and lifting lugs;
[0018] Figure 7 This is a three-dimensional structural diagram of the locking plate;
[0019] In the diagram, 1. Semicircular support plate; 2. Support connecting plate; 3. Gantry bracket; 301. Vertical beam; 302. Horizontal beam; 4. Semicircular clamping plate; 5. Clamping connecting plate; 6. Lifting plate; 7. Lifting seat; 8. Lower pressure plate; 9. Slot; 10. Slide groove; 11. Slider; 12. Screw; 13. Rotating rod; 14. Chuck; 15. Lifting rod; 16. Threaded groove; 17. Lifting lug; 18. Wedge-shaped groove; 19. Locking plate; 20. Wedge block; 21. Notch; 22. Support reinforcing rib; 23. Clamping reinforcing rib; 24. Flange; 25. Arc-shaped groove. Detailed Implementation
[0020] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application; however, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.
[0021] Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0022] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.
[0023] like Figure 1-7As shown in this embodiment, an auxiliary tool for disassembling a hydraulic gate hoist cylinder includes a support member. The support member includes semi-circular support plates 1 symmetrically arranged on the left and right sides. The front and rear sides of the two semi-circular support plates 1 are connected by support connecting plates 2. A gantry bracket 3 is vertically provided on each of the two support connecting plates 2. The two vertical beams 301 of the gantry bracket 3 are respectively fixed to the semi-circular support plates 1 on the corresponding side. A clamping member that cooperates with the support member is provided between the two gantry brackets 3. The lower part of the clamping member is movably engaged with the upper part of the support member inside the gantry bracket 3. The clamping member includes semi-circular clamping plates 4 symmetrically arranged on the left and right sides. The front and rear sides of the clamping plate 4 are connected by clamping connecting plates 5. The outer side of the clamping connecting plate 5 extends horizontally outward from the semi-circular clamping plate 4 and is movably locked between the two vertical beams 301 of the corresponding side gantry bracket 3. The inner radius of the semi-circular support plate 1 is the same as the inner radius of the semi-circular clamping plate 4. The two semi-circular clamping plates 4 are connected in the middle by a lifting plate 6. A lifting seat 7 is provided in the middle of the surface of the lifting plate 6. A lifting member that cooperates with the lifting seat 7 is provided between the two gantry brackets 4. A pressing mechanism that cooperates with the clamping connecting plate 5 on the corresponding side is provided on the two gantry brackets 3 respectively. The crossbeams 302 of the two gantry brackets 3 are connected by locking members.
[0024] Optionally, the pressing mechanism includes a pressing plate 8 horizontally disposed between two vertical beams 301 of the gantry bracket 3. A slot 9 is provided in the pressing plate 8 at the corresponding middle position. Slide grooves 10 are provided on the side walls of the two vertical beams 301 on opposite sides along their height direction. The pressing plate 8 is engaged in the slide grooves 10 on the corresponding side by sliders 11 disposed at its left and right ends. A screw 12 is vertically disposed in the gantry bracket 3. The upper end of the screw 12 is threaded through the middle of the crossbeam 302 of the gantry bracket 3 and connected to the rotating rod 13. Its lower end moves through the surface of the pressing plate 8 and is engaged in the slot 9 of the pressing plate 8 by a chuck 14.
[0025] Optionally, the lifting component includes a vertically arranged lifting rod 15, the lower end of which is threaded into the threaded groove 16 of the lifting seat 7, and the upper end of which extends out of the gantry bracket 3 and is connected to the lifting lug 17.
[0026] Optionally, the locking component includes wedge-shaped grooves 18 arranged horizontally on the inner walls of the crossbeams 302 of the two gantry brackets 3, and locking plates 19 symmetrically arranged horizontally on the left and right sides of the boom 15. The locking plates 19 are engaged in the wedge-shaped grooves 18 on the corresponding side by wedge blocks 20 arranged on their front and rear sides. A notch 21 is provided on the side wall of the locking plate 19 on the side corresponding to the boom 15. A flange 24 is provided around the boom at the position of the notch. An arc-shaped groove 25 that matches the flange is provided in the middle of the notch 21 along its arc length.
[0027] Optionally, a plurality of reinforcing ribs 22 are provided at intervals along the arc length between the two semicircular support plates 1, and each reinforcing rib 22 is connected to the corresponding semicircular support plate 1 on one side. The connection strength between the two semicircular support plates 1 can be further improved by the reinforcing ribs 22.
[0028] Optionally, a plurality of clamping reinforcing ribs 23 are provided at intervals along the arc length between the two semicircular clamping plates 4, and each clamping reinforcing rib 23 is connected to the corresponding semicircular clamping plate 4 on one side. The connection strength between the two semicircular clamping plates 4 can be further improved by the clamping reinforcing ribs 23.
[0029] In use, the support is first attached to the piston rod of the hydraulic cylinder. Then, the clamping member is inserted from above between the two gantry supports, and the front clamping connecting plate is inserted between the two vertical beams 301 of the front gantry support 3, and the rear clamping connecting plate is inserted between the two vertical beams 301 of the rear gantry support 3. At this time, the clamping member abuts against the piston rod of the hydraulic cylinder. Then, the two rotating rods 13 are turned, which drive the screw 12 to rotate, and then move downward on the crossbeam 302 of the gantry support 3. This, in turn, drives the lower pressure plate 8 to move downward through the chuck 14. The lower pressure plate 8 moves downward along the sliding grooves 10 of the two vertical beams 301 of the gantry support 3 through the sliders 11 on both sides until it abuts against and presses against the clamping connecting plate 5 on that side. At this time, the clamping member and the support member complete the fixation of the piston rod. Then, the lifting member is installed so that the lifting rod 15 is connected in the threaded groove 16. Next, two locking plates 19 are inserted from the left and right sides of the gantry bracket 3 respectively. The locking plates 19 are engaged in the wedge-shaped grooves 18 of the vertical beam 301 by wedge blocks 20. During the movement of the locking plates 19, the arc-shaped grooves 25 at the notch 21 are engaged on the flanges 24 of the lifting rod 15, further fixing the lifting rod 15. Finally, the lifting tool is connected to the lifting lug 17 to provide stable support for the hydraulic cylinder. The piston lifting lug can be easily installed and removed without external force. Its structure is reasonable and easy to operate. It can efficiently complete the separation of the hydraulic cylinder from the hydraulic cylinder chassis bracket without disassembling the whole. During the disassembly of the hydraulic cylinder, it provides stable support for the hydraulic cylinder, greatly reducing the stress on the piston lifting lug, making it easier to disassemble the piston lifting lug, thereby improving disassembly and installation efficiency, facilitating subsequent transportation operations, reducing maintenance costs, and solving the problems existing in the prior art.
[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model. For those skilled in the art, any alternative improvements or transformations made to the implementation of this utility model fall within the protection scope of this utility model.
[0031] Any aspects of this utility model not described in detail are known to those skilled in the art.
Claims
1. An auxiliary tool for disassembling the cylinder of a hydraulic gate hoist, characterized in that, The system includes a support component comprising symmetrically arranged semi-circular support plates on both sides. The front and rear sides of the two semi-circular support plates are connected by support connecting plates. A gantry bracket is vertically mounted on each of the two support connecting plates. Two vertical beams of the gantry bracket are respectively fixed to the corresponding semi-circular support plate. A clamping component that cooperates with the support component is provided between the two gantry brackets. The lower part of the clamping component is movably engaged with the upper part of the support component inside the gantry bracket. The clamping component includes symmetrically arranged semi-circular clamping plates on both sides. The front and rear sides of the two semi-circular clamping plates... All are connected by clamping connecting plates. A semi-circular clamping plate extends horizontally from the outer side of the clamping connecting plate and is movably locked between the two vertical beams of the corresponding gantry bracket. The inner radius of the semi-circular support plate is the same as the inner radius of the semi-circular clamping plate. The two semi-circular clamping plates are connected in the middle by a lifting plate. A lifting seat is provided in the middle of the surface of the lifting plate. A lifting member that cooperates with the lifting seat is provided between the two gantry brackets. A pressing mechanism that cooperates with the clamping connecting plate on the corresponding side is provided on each of the two gantry brackets. The crossbeams of the two gantry brackets are connected by locking members.
2. The auxiliary tool for disassembling the hydraulic cylinder of a gate hoist according to claim 1, characterized in that, The pressing mechanism includes a pressing plate horizontally positioned between two vertical beams of the gantry support. A slot is provided in the pressing plate at the corresponding middle position. Slide grooves are provided on the side walls of the two vertical beams on opposite sides along their height direction. The pressing plate is engaged in the slide grooves on the corresponding side by sliders at its left and right ends. A screw is vertically provided in the gantry support. The upper end of the screw is threaded through the middle of the crossbeam of the gantry support and connected to the rotating rod. Its lower end moves through the surface of the pressing plate and is engaged in the slot of the pressing plate by a chuck.
3. The auxiliary tool for disassembling the hydraulic cylinder of a gate hoist according to claim 1, characterized in that, The lifting component includes a vertically arranged lifting rod, the lower end of which is threaded into the threaded groove of the lifting seat, and the upper end of which extends out of the gantry bracket and is connected to the lifting lug.
4. The auxiliary tool for disassembling the hydraulic cylinder of a gate hoist according to claim 3, characterized in that, The locking component includes wedge-shaped grooves set horizontally on the inner walls of the crossbeams of the two gantry supports. Locking plates are symmetrically and horizontally arranged on the left and right sides of the boom. The locking plates are engaged in the wedge-shaped grooves on the corresponding side by wedge blocks set on their front and rear sides. A notch is provided on the side wall of the locking plate on the corresponding boom side. A flange is provided around the boom at the position of the notch. An arc-shaped groove that matches the flange is provided along the arc length of the notch.
5. The auxiliary tool for disassembling the hydraulic cylinder of a gate hoist according to claim 1, characterized in that, Several reinforcing ribs are provided at intervals along the arc length between the two semicircular support plates, and each reinforcing rib is connected to the corresponding semicircular support plate on one side.
6. The auxiliary tool for disassembling the hydraulic cylinder of a gate hoist according to claim 1, characterized in that, Several clamping reinforcing ribs are provided at intervals along the arc length between the two semi-circular clamping plates, and each clamping reinforcing rib is connected to the corresponding semi-circular clamping plate on one side.