A cylinder cover dismounting wrench
Patent Information
- Application Number
- CN202522178184.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-15
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-10-15
AI Technical Summary
[0002]矿井内会使用到相当多的大型设备,需要经常对设备进行维护维修,在车辆维护中需要到对转向油缸端盖、圆螺母等进行拆卸,因此需要使用到专用的月牙扳手;现有技术中月牙扳手多数是一体成型的,因此为了拆卸不同型号的油缸端盖或圆螺母时,就需要使用到不同的型号,进而在维修时需要携带大量的月牙扳手,进而费时费力,给工作带来了诸多不便,因此存在了改进的空间
[0009]1. The main hook head is connected to the clamping frame by bolts, which facilitates replacement if damaged and avoids the situation where the entire tool is scrapped after the main hook head is damaged, thus avoiding waste of resources.
Smart Images

Figure CN224725798U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wrench technology, and in particular to a wrench for disassembling a hydraulic cylinder cover. Background Technology
[0002] Mines use a considerable number of large pieces of equipment that require frequent maintenance and repair. Vehicle maintenance often involves disassembling components such as steering cylinder end caps and round nuts, necessitating the use of specialized crescent wrenches. Currently, most crescent wrenches are integrally molded, requiring different models to disassemble different types of cylinder end caps or round nuts. This necessitates carrying a large number of crescent wrenches during maintenance, resulting in wasted time and effort and causing numerous inconveniences. Therefore, there is room for improvement. Utility Model Content
[0003] This utility model provides a wrench for disassembling a hydraulic cylinder head to solve the problems mentioned in the background art.
[0004] To address the aforementioned problems, this utility model provides a wrench for disassembling a cylinder head, comprising a handle, a main hook, and a secondary hook. A clamping frame is fixedly mounted on the front end of the handle. Two hexagonal connecting holes are symmetrically formed on the inner top of the clamping frame, and a positioning bolt communicating with the connecting holes is installed on the top of the clamping frame. Two matching connecting seats are symmetrically formed on the top surface of the main hook, and the connecting seats are threadedly connected to the positioning bolt. A sliding groove is formed on the lower side of the clamping frame, and a movable block is slidably disposed within the sliding groove. A first adjusting screw is threadedly connected to the clamping frame, penetrating into the sliding groove, and the end of the first adjusting screw located within the sliding groove is rotatably connected to one side of the movable block. A second adjusting screw is vertically threadedly connected to the movable block, and a mounting plate is connected to the top of the second adjusting screw. The secondary hook is bolted to the top of the mounting plate.
[0005] Preferably, two slide rails are symmetrically arranged on both sides of the sliding groove, and sliders that are slidably connected to the slide rails are symmetrically arranged on both sides of the movable block.
[0006] Preferably, the end of the first adjusting screw located on the outside of the clamping frame is provided with a first driving handle.
[0007] Preferably, the movable block has a guide rod slidably provided on both sides of the second adjusting screw, and the top end of the guide rod is fixedly connected to the bottom of the mounting plate. The top end of the second adjusting screw is rotatably connected to the mounting plate, and the end of the second adjusting screw away from the mounting plate is provided with a second driving handle.
[0008] The beneficial effects of adopting the above technical solutions are:
[0009] 1. The main hook head is connected to the clamping frame by bolts, which facilitates replacement if damaged and avoids the situation where the entire tool is scrapped after the main hook head is damaged, thus avoiding waste of resources.
[0010] 2. The first adjusting screw drives the movable block to move laterally in the sliding groove, and the second adjusting screw, in conjunction with the guide rod, drives the auxiliary hook head to move longitudinally. This facilitates the adjustment of the position of the auxiliary hook head, making it easier to work with the main hook head to disassemble different types of cylinder end caps and round nuts. This improves the applicability of the equipment, eliminates the need to carry different types of crescent wrenches, and enhances work efficiency and convenience. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0012] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of this utility model.
[0013] Wherein: 1-handle; 2-main hook head; 21-connecting seat; 3-secondary hook head; 4-clamping frame; 41-connecting hole; 42-positioning bolt; 43-sliding groove; 431-slide rail; 5-moving block; 51-first adjusting screw; 511-first drive handle; 52-second adjusting screw; 521-second drive handle; 53-slider; 54-guide rod; 6-mounting plate. Detailed Implementation
[0014] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0015] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, a movable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0017] like Figure 1-2 In this embodiment, a cylinder head disassembly wrench includes a handle 1, a main hook 2, and a secondary hook 3. A clamping frame 4 is fixedly provided at the front end of the handle 1. Two hexagonal connecting holes 41 are symmetrically opened on the inner side of the top of the clamping frame 4, and a positioning bolt 42 communicating with the connecting holes 41 is installed on the top of the clamping frame 4. Two matching connecting seats 21 with matching connecting holes 41 are symmetrically provided on the top surface of the main hook 2, and the connecting seats 21 are threadedly connected to the positioning bolts 42. A sliding groove 43 is opened in the lower side of the clamping frame 4, and a movable block 5 is slidably provided in the sliding groove 43. A first adjusting screw 51 is threadedly connected to the clamping frame 4 and penetrates into the sliding groove 43. The end of the first adjusting screw 51 located in the sliding groove 43 is rotatably connected to one side of the movable block 5. A second adjusting screw 52 is vertically threadedly connected to the movable block 5, and a mounting plate 6 is connected to the top of the second adjusting screw 52. The secondary hook 3 is installed on the top of the mounting plate 6 by bolts.
[0018] With the above technical solution, the main hook 2 is hooked into a slot in the cylinder head during use. Then, the first adjusting screw 51 adjusts the lateral movement of the movable block 5 in the sliding groove 43, and the second adjusting screw 52 drives the mounting plate 6 to move longitudinally, thereby adjusting the position of the auxiliary hook 3. This allows the auxiliary hook 3 to stably abut against the side or slot of different types of cylinder heads or round nuts. The handle 1 drives the clamping frame 4 to twist, allowing for the disassembly of the clamped cylinder head or round nut, thus improving the tool's applicability. Since the main hook 2 is inserted into the connecting hole 41 and fixed with the positioning bolt 42, it is easy to disassemble and replace when the main hook 2 is worn, avoiding resource waste. The auxiliary hook 3 is bolted to the mounting plate 6, so it can also be replaced when worn.
[0019] Preferably, two slide rails 431 are symmetrically arranged on both sides of the sliding groove 43, and sliders 53 that are slidably connected to the slide rails 431 are symmetrically arranged on both sides of the movable block 5.
[0020] The above technical solution ensures the stability of the movable block 5 sliding in the sliding groove 43, thereby ensuring the stability of the first adjusting screw 51 driving the movable block 5, and ensuring the stability of the secondary hook 3 after adjustment.
[0021] Preferably, the first adjusting screw 51 is provided with a first driving handle 511 at the end located outside the clamping frame 4.
[0022] The above technical solution facilitates manual turning of the first adjusting screw 51, improving convenience.
[0023] Preferably, the movable block 5 has a guide rod 54 slidably provided on both sides of the second adjusting screw 52, and the top end of the guide rod 54 is fixedly connected to the bottom of the mounting plate 6. The top end of the second adjusting screw 52 is rotatably connected to the mounting plate 6, and the end of the second adjusting screw 52 away from the mounting plate 6 is provided with a second drive handle 521.
[0024] Through the above technical solution, the guide rod 54, in conjunction with the second adjusting screw 52, enables the mounting plate 6 to move stably up and down, thereby ensuring that the auxiliary hook 3 moves stably in the longitudinal direction. The second drive handle 521 is used to manually turn the second adjusting screw 52, improving convenience.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate this utility model and are not intended to limit the technical solutions described in this utility model. Therefore, although this specification has described this utility model in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model, and all technical solutions and improvements that do not depart from the spirit and scope of this utility model should be covered within the scope of the claims of this utility model; technologies not described in detail in this utility model are implemented using existing technologies.
Claims
1. A wrench for disassembling a hydraulic cylinder head, comprising a handle, a main hook, and a secondary hook, characterized in that: A clamping frame is fixedly provided at the front end of the handle. Two hexagonal connecting holes are symmetrically opened on the inner top of the clamping frame, and a positioning bolt communicating with the connecting holes is installed on the top of the clamping frame. The top surface of the main hook head is symmetrically provided with two matching connecting holes and the connecting seats are threadedly connected to the positioning bolts. A sliding groove is opened in the lower side of the clamping frame, and a movable block is slidably arranged in the sliding groove. A first adjusting screw is threadedly connected to the clamping frame and passes through the sliding groove. The end of the first adjusting screw located in the sliding groove is rotatably connected to one side of the movable block. A second adjusting screw is vertically threadedly connected to the movable block, and a mounting plate is connected to the top of the second adjusting screw. The auxiliary hook head is installed on the top of the mounting plate by bolts.
2. The wrench for disassembling a hydraulic cylinder head according to claim 1, characterized in that: Two slide rails are symmetrically arranged on both sides of the sliding groove, and sliders that are slidably connected to the slide rails are symmetrically arranged on both sides of the movable block.
3. A wrench for disassembling a hydraulic cylinder head according to claim 1, characterized in that: The first adjusting screw has a first driving handle at the end located outside the clamping frame.
4. A wrench for disassembling a hydraulic cylinder head according to claim 1, characterized in that: The movable block has a guide rod slidably provided on both sides of the second adjusting screw, and the top end of the guide rod is fixedly connected to the bottom of the mounting plate. The top end of the second adjusting screw is rotatably connected to the mounting plate, and the end of the second adjusting screw away from the mounting plate is provided with a second drive handle.