Thin oil cylinder end cover wrench

Abstract

The utility model discloses a thin oil cylinder end cover wrench which comprises a grip. The end of the connecting piece is fixedly connected with the end of the grip, a through mounting hole is formed in the connecting piece in the length direction of the connecting piece, and the connecting piece is provided with a protruding first limiting block; the fixing piece is in a circular arc shape, the fixing piece is provided with a first end and a second end which are opposite to each other, the first end of the fixing piece is provided with a mounting part capable of penetrating through the mounting hole, and the mounting part can move in the mounting hole, so that the fixing piece can be driven to move in the length direction of the connecting piece to adapt to oil cylinder end covers of different sizes; a second limiting block is arranged at the second end of the fixing piece, and the protruding directions of the first limiting block and the second limiting block are the same; and the pressing block is connected with the mounting part penetrating through the mounting hole, and the pressing block tightly presses the connecting piece, so that the fixing piece and the connecting piece are tightly pressed and fixed. The thin oil cylinder end cover wrench can adapt to oil cylinder end covers with different cylinder diameters, is higher in universality and improves production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical tools, and particularly relates to a thin-type oil cylinder end cover wrench. Background Art

[0002] A thin-type oil cylinder is an energy conversion device that converts hydraulic energy into reciprocating linear motion. Due to its small volume, it is often used in occasions with limited space and short strokes. Its basic structure consists of an end cover, a cylinder body, a piston rod, and a piston. The end cover of the oil cylinder is connected to the inside of the cylinder body by threads. Since the surface of the end cover is flush with the end face of the cylinder body and there is no way to apply force to tighten the end cover, two round holes are punched on the surface of the end cover, and then a specific wrench is used to tighten the end cover. However, the distance between the round holes of oil cylinders with different cylinder diameters is different, which requires multiple wrenches of different specifications. When operating personnel assemble or repair the oil cylinder, they often waste time due to choosing the wrong wrench, reducing production efficiency.

[0003] Therefore, in order to solve the above technical problems, it is necessary to develop a thin-type oil cylinder end cover wrench. Summary of the Utility Model

[0004] In order to overcome the above deficiencies, the purpose of the utility model is to provide a thin-type oil cylinder end cover wrench, which can be applicable to the end covers of oil cylinders with different cylinder diameters, reduce the number of wrenches, and have stronger versatility.

[0005] Technical Solution: The present application provides a thin-type oil cylinder end cover wrench, including:

[0006] A grip for the user to hold.

[0007] A connecting piece, the end of the connecting piece is fixedly connected to the end of the grip. The connecting piece is provided with a through installation hole along its length direction, and the connecting piece is provided with a protruding first limiting block.

[0008] A fixing piece, the fixing piece is arc-shaped and has opposite first and second ends. The first end of the fixing piece is provided with an installation part that can pass through the installation hole. The installation part can move in the installation hole, so as to drive the fixing piece to move along the length direction of the connecting piece to adapt to end covers of different sizes of oil cylinders. The second end of the fixing piece is provided with a second limiting block, wherein the protruding directions of the first limiting block and the second limiting block are the same.

[0009] A pressing block, the pressing block is connected to the installation part passing through the installation hole, and the pressing block presses the connecting piece, so as to press and fix the fixing piece and the connecting piece.

[0010] Further, the shapes of the first limiting block and the second limiting block are both circular bosses, and the height of the first limiting block is lower than that of the second limiting block.

[0011] Further, after the installation part passes through the installation hole, the upper surface and the lower surface of the fixing part are respectively flush with the upper surface and the lower surface of the connecting part.

[0012] Further, the installation part is a waist-shaped boss, the installation hole is a long-strip waist-shaped groove, and the installation part can move in the installation hole along the length direction of the connecting part.

[0013] Further, the arc length of the fixing part is at least a semi-circle.

[0014] Further, the pressing block is fixedly connected to the installation part by screws, and the fixing part and the pressing block are respectively closely attached to both sides of the connecting part.

[0015] Further, the surface of the handle is coated with a rubber layer.

[0016] The beneficial effects of the present utility model are as follows:

[0017] (1) The installation part can move in the installation hole, so as to adjust the distance between the first limiting block and the second limiting block to adapt to the cylinder end covers with different cylinder diameters, with stronger versatility and higher production efficiency;

[0018] (2) The arc-shaped structure of the fixing part can avoid the piston rod part in the center of the oil cylinder. By embedding the second limiting block and the first limiting block on the connecting part into the round hole on the cylinder end cover, the cylinder end cover can be disassembled and assembled, and it is not easy to damage the cylinder end cover. Description of the Drawings

[0019] The drawings described herein are only for the purpose of explanation and are not intended to limit the scope of the disclosure of the present utility model in any way. In addition, the shapes and proportional dimensions of the various components in the drawings are only schematic and are used to assist in understanding the present utility model, rather than specifically limiting the shapes and proportional dimensions of the various components of the present utility model. Those skilled in the art can, under the teaching of the present utility model, select various possible shapes and proportional dimensions according to specific circumstances to implement the present utility model. In the drawings:

[0020] Figure 1 is a schematic structural diagram of the thin-type cylinder end cover wrench described in the present utility model;

[0021] Figure 2 is a schematic structural diagram of the fixing part described in the present utility model;

[0022] Figure 3 is a schematic diagram of the oil cylinder described in the present utility model;

[0023] Figure 4 Schematic diagram of the use of the thin-type cylinder end cover wrench of the present utility model.

[0024] In the figure: 1, grip; 2, connecting piece; 21, mounting hole; 22, first limiting block; 3, fixing piece; 31, mounting part; 32, second limiting block; 4, pressing block. Specific embodiments

[0025] The following further clarifies the present utility model in conjunction with the appended Figures 1-4 drawings and specific embodiments.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes its implementation manners according to the overall structure of the present invention.

[0027] The present utility model provides a thin-type cylinder end cover wrench. As Figure 3 and Figure 4 shown, the thin-type cylinder is composed of an end cover, a cylinder body, a piston rod and a piston. The end cover of the cylinder is connected to the cylinder body by means of threaded connection. Therefore, the surface of the end cover is flush with the end face of the cylinder body. Two circular holes that can be embedded are provided on the surface of the end cover. To open the end cover, a specific wrench is required. The end cover is rotated by embedding it into the circular holes. However, since the distances between the circular holes on cylinders with different diameters are different, multiple wrenches need to be equipped. During specific operations, the operator has to spend time matching the wrenches, resulting in low production efficiency.

[0028] As Figure 1 and Figure 2 shown, the present application provides a thin-type cylinder end cover wrench, including:

[0029] A grip 1 for the user to hold;

[0030] A connecting piece 2, the end of the connecting piece 2 is fixedly connected to the end of the grip 1. The connecting piece 2 is provided with a through mounting hole 21 along its length direction, and the connecting piece 2 is provided with a protruding first limiting block 22;

[0031] Fixing member 3, the fixing member 3 is arc-shaped, the fixing member 3 has opposite first end and second end, the first end of the fixing member 3 is provided with an installation portion 31 that can pass through the installation hole 21, and the installation portion 31 can move within the installation hole 21, so as to drive the fixing member 3 to move along the length direction of the connecting member 2 to adapt to cylinder end covers of different sizes; the second end of the fixing member 3 is provided with a second limiting block 32, wherein, the protruding directions of the first limiting block 22 and the second limiting block 32 are the same;

[0032] Pressing block 4, the pressing block 4 is connected to the installation portion 31 passing through the installation hole 21, and the pressing block 4 presses the connecting member 2, so as to press and fix the fixing member 3 and the connecting member 2 together.

[0033] With the above structure, the handle 1 is connected to the connecting member 2. When the user holds the handle 1, one end of the fixing member 3 passes through the connecting member 2. At the same time, the pressing block 4 is connected to the fixing member 3 passing through the connecting member 2, so that the fixing member 3 can move along the length direction of the connecting member 2 to adjust the distance between the first limiting block 22 and the second limiting block 32, so that the first limiting block 22 and the second limiting block 32 can be embedded into the round holes on the cylinder end cover to be applicable to cylinder end covers of different sizes.

[0034] Specifically, the fixing member 3 is arc-shaped, and the arc-shaped structure avoids the piston part in the center of the cylinder. The first end of the fixing member 3 is provided with an installation portion 31. After the installation portion 31 passes through the installation hole 21 on the connecting member 2, it is connected to the pressing block 4. While the pressing block 4 presses the connecting member 2, the fixing member 3 is also pressed and fixed to the connecting member 2. At this time, the installation portion 31 can move within the installation hole 21, that is, the fixing member 3 can move along the length direction of the connecting member 2. The first limiting block 22 and the second limiting block 32 are respectively located at the end of the connecting member 2 and the second end of the fixing member 3. Therefore, the distance between the first limiting block 22 and the second limiting block 32 is further adjusted, and thus the effect of being applicable to cylinder end covers of different sizes is achieved.

[0035] During use, first align the second limiting block 32 of the fixing member 3 and place it into the round hole of the cylinder end cover, then move the connecting member 2 relative to the fixing member 3 to adjust the distance between the first limiting block 22 and the second limiting block 32 until the first limiting block 22 can also be placed into another round hole of the cylinder end cover. After the wrench is relatively fixed to the cylinder end cover, the user can disassemble and assemble the cylinder end cover.

[0036] In this embodiment, as Figure 2As shown, the first limit block 22 and the second limit block 32 are both circular bosses, which correspond to the circular holes on the oil cylinder end cover, so as to facilitate the user to disassemble and assemble the oil cylinder end cover. In addition, the height of the first limit block 22 is lower than that of the second limit block 32. The user first puts the second limit block 32 into the circular hole of the oil cylinder end cover. Since there is a height difference between the first limit block 22 and the second limit block 32, the user can move the fixing member 3 relative to the connecting member 2 while positioning one of the circular holes. When adjusting the distance between the first limit block 22 and the second limit block 32, the first limit block 22 will not be scratched against the surface of the oil cylinder end cover.

[0037] In this embodiment, Figure 1 As shown, the thickness of the fixing member 3 is the same as that of the connecting member 2. After the mounting portion 31 is connected to the mounting hole 21, the upper surface and the lower surface of the fixing member 3 are flush with the upper surface and the lower surface of the connecting member 2 respectively, which can avoid misalignment or tilting, thereby ensuring the stability of the structure.

[0038] In this embodiment, if Figure 1 and Figure 2 As shown, the mounting portion 31 is a waist-shaped boss, and correspondingly, the mounting hole 21 is a waist-shaped groove. The length of the mounting hole 21 is greater than the length of the mounting portion 31. The mounting hole 21 can accommodate the movement of the mounting portion 31 in the hole, thereby realizing the movement of the fixing member 3 relative to the connecting member 2 and adjusting the distance between the second limit block 32 and the first limit block 22.

[0039] In this embodiment, if Figure 2 As shown, the arc length of the fixing member 3 is at least a semicircle. If the arc length of the fixing member 3 is less than a semicircle, the second limit block 32 on the fixing member 3 and the first limit block 22 on the connecting member 2 will be difficult to provide sufficient fixing force, which may easily cause the entire wrench to fall off or shift during use, and the safety during use cannot be guaranteed.

[0040] In this embodiment, if Figure 1 As shown, the pressing block 44 and the fixing member 33 are respectively on different sides of the connecting member 22, and the pressing block 44 is fixedly connected to the mounting portion 3131 by screws, so that the fixing member 33 and the pressing block 44 are tightly attached to both sides of the connecting member 22, thereby ensuring that the movable path of the mounting portion 3131 is only limited along the length direction of the mounting hole 2121, and when adjusting the spacing between the first limit block 2222 and the second limit block 3232, there will be no interference from possible shaking in other directions.

[0041] In this embodiment, a rubber layer is coated on the surface of the handle 11 where the user contacts the handle 11, which can increase the friction and prevent the user from losing the grip due to too little friction during operation, thereby avoiding unsafe situations.

[0042] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. A thin-type cylinder end cover wrench, characterized in that, Comprising: A grip for a user to hold; A connecting member, the end of which is fixedly connected to the end of the grip. The connecting member is provided with a through mounting hole along its length direction, and the connecting member is provided with a protruding first limiting block; A fixing member, which is arc-shaped and has opposite first and second ends. The first end of the fixing member is provided with a mounting portion that can pass through the mounting hole, and the mounting portion can move within the mounting hole, so as to drive the fixing member to move along the length direction of the connecting member to adapt to end caps of oil cylinders of different sizes; the second end of the fixing member is provided with a second limiting block, wherein the protruding directions of the first limiting block and the second limiting block are the same; A pressing block, which is connected to the mounting portion passing through the mounting hole, and the pressing block presses the connecting member, so as to tightly fix the fixing member and the connecting member.

2. The thin cylinder end cover wrench according to claim 1, wherein The first limiting block and the second limiting block are both in the shape of a circular boss, and the height of the first limiting block is lower than that of the second limiting block.

3. The thin cylinder end cover wrench according to claim 1, wherein After the mounting portion passes through the mounting hole, the upper surface and the lower surface of the fixing member are flush with the upper surface and the lower surface of the connecting member respectively.

4. The thin cylinder end cover wrench according to claim 1, wherein, The mounting portion is a waist-shaped boss, the mounting hole is a long strip-shaped waist-shaped groove, and the mounting portion can move within the mounting hole along the length direction of the connecting member.

5. The thin-type cylinder head wrench according to claim 1, characterized in that, The arc length of the fixing member is at least a semi-circle.

6. The thin-type cylinder head wrench according to claim 1, wherein, The pressing block is fixedly connected to the mounting portion by screws, and the fixing member and the pressing block are respectively closely attached to both sides of the connecting member.

7. The thin-type cylinder head wrench according to claim 1, wherein, The surface of the grip is coated with a rubber layer.

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