Connecting structure of piston rod and lug ring of hydraulic oil cylinder

Abstract

The utility model relates to the technical field of hydraulic oil cylinders, in particular to a hydraulic oil cylinder piston rod and lug ring connecting structure which comprises a rod body, a lug ring is clamped to the top end of the rod body through a positioning mechanism, the positioning mechanism comprises a butt joint assembly and a positioning assembly, the butt joint assembly comprises a mounting rod, the mounting rod is connected into the lug ring in a sliding mode, and the positioning assembly is connected with the mounting rod. An extension groove is formed in one side of the lug ring, a movable groove is formed in the position, located on the outer side of the mounting rod, in the lug ring, a movable disc slidably connected with the movable groove is mounted on the outer side of the mounting rod, and reset springs are mounted between the two ends of one side of the movable disc and the inner wall of the movable groove; the device is simple in structure and convenient to operate, the rod body and the lug ring can be quickly disassembled and assembled by a worker through pressing and rotating, the working efficiency is improved, the labor amount of the worker is reduced, the nut does not need to be rotated circle by circle for fixing, and the worker does not need to be gradually welded by a clamp; and meanwhile, a worker can conveniently overhaul and replace the damaged rod body or lug ring.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil cylinders, in particular to a hydraulic oil cylinder piston rod and earring connection structure. Background Art

[0002] At present, the installation connection method between the piston rod and the earring of the hydraulic cylinder is mostly to use a spare anti-loosening nut (commonly known as a spare nut) to lock and fix it or to use a clamp to align the earring and the rod body and then weld and fix it. However, the nut connection method requires the staff to rotate it circle by circle during disassembly and assembly, which is cumbersome and inconvenient. The welding method also requires the use of a clamp to assist the operation, and it is impossible to replace the damaged earring or rod body and combine the new part with the old intact part for reuse. The above installation methods are all inconvenient in the disassembly and assembly process in actual operation, which increases the workload of the staff and affects the work efficiency. Therefore, it is urgent to design a hydraulic cylinder piston rod and earring connection structure to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a hydraulic oil cylinder piston rod and earring connection structure to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A hydraulic cylinder piston rod and earring connection structure, comprising a rod body, the top end of the rod body is clamped with the earring through a positioning mechanism, the positioning mechanism comprises a docking assembly and a positioning assembly, the docking assembly comprises a mounting rod, the mounting rod is slidably connected to the inside of the earring, an extension groove is provided on one side of the earring, a movable groove is provided inside the earring on the outside of the mounting rod, a movable disk slidably connected to the movable groove is installed on the outside of the mounting rod, return springs are installed between both ends of one side of the movable disk and the inner wall of the movable groove, a clamping block is installed on one end of the mounting rod extending to the outside of the earring, and a positioning block is installed on one end of the clamping block.

[0006] As a preferred solution of the utility model, the cross section of the clamping block is "U"-shaped, and one end of the mounting rod extending to the inner side of the extension groove is rotatably connected to a pull ring.

[0007] As a preferred solution of the utility model, the positioning assembly includes an adjusting disk, a mounting groove is provided at one end of the rod body, the adjusting disk is rotatably connected to the inner side of the mounting groove, springs are installed at both ends of the top of the adjusting disk, a docking disk is installed at the top of the spring, a positioning groove is provided at the top of the docking disk and is engaged with the positioning block, a docking groove is provided at the top of the rod body and extends to the inner side of the mounting groove, and clamping grooves are provided at both ends of the top of the rod body located in the mounting groove, the clamping groove and the clamping block are engaged, and the docking groove and the clamping block are engaged.

[0008] As a preferred solution of the utility model, a pulling groove is provided on the outer wall of the earring on one side of the extension groove, the pulling groove is connected to the inner side of the extension groove, a pulling plate is slidably connected to the inner side of the pulling groove, a pulling groove is provided on one side of the pulling plate, and the pulling plate is slidably connected to the extension groove.

[0009] As a preferred solution of the utility model, both sides of the inner wall of the pulling groove are provided with limiting grooves extending to the inner side of the extension groove, and both ends of the pulling plate are equipped with limiting blocks slidably connected to the limiting grooves.

[0010] As a preferred solution of the utility model, a first fixing piece is embedded and installed on one end of the lifting plate, and a second fixing piece corresponding to the first fixing piece is embedded and installed on the inner wall of the extension groove.

[0011] As a preferred solution of the utility model, one of the first fixing member and the second fixing member is a first magnet, and the other of the first fixing member and the second fixing member is a second magnet, and the magnetic poles of the first magnet and the second magnet are opposite and attract each other.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, the bottom end of the earring and the rod body are fitted together, so that the clamping block is aligned with the docking groove and inserted into it, and then the pull ring is buckled to push the installation rod inward, and the positioning block and the positioning groove can be used to squeeze the docking plate, the reset spring and the spring downward, and then the adjusting plate is driven to rotate, and the clamping block is rotated to the horizontal direction and then the pull ring is released to make the protruding ends on both sides of the clamping block inserted into the inner side of the clamping groove to complete the fixation. When disassembling, the pull ring is buckled again to push the installation rod to squeeze the docking plate, and the clamping block is rotated to the longitudinal direction and then released to be pulled out of the docking groove to complete the disassembly. The structure is simple and the operation is convenient. The staff can quickly disassemble and assemble the rod body and the earring by pressing and rotating, which improves the work efficiency and reduces the labor of the staff. There is no need to rotate the nut circle by circle to fix it, and there is no need to use a clamp to assist the staff to gradually weld. At the same time, it is also convenient for the staff to repair and replace the damaged rod body or earring.

[0014] 2. In the utility model, the lifting plate is moved by holding the lifting plate inside the lifting groove in cooperation with the limit block and the limit groove, so that the first fixing member embedded in one end of the lifting plate and the second fixing member embedded in the inner wall of the extension groove are adsorbed and fixed, and the pull ring can be closed inside the extension groove to avoid accidental touching after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of a partial three-dimensional structure of the earrings and the rod body being separated from each other in the utility model;

[0017] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model.

[0018] In the figure: 1. rod body; 2. earring; 3. mounting rod; 4. extension slot; 5. movable disk; 6. reset spring; 7. clamping block; 8. positioning block; 9. adjusting disk; 10. spring; 11. docking disk; 12. docking slot; 13. lifting plate; 14. limit block; 15. first fixing member. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] Example:

[0021] See also Figure 1-Figure 3 , the utility model provides a technical solution:

[0022] A hydraulic cylinder piston rod and earring connection structure, comprising a rod body 1, the top of the rod body 1 is clamped with an earring 2 through a positioning mechanism, the positioning mechanism comprises a docking assembly and a positioning assembly, the docking assembly comprises a mounting rod 3, the mounting rod 3 is slidably connected to the inside of the earring 2, an extension groove 4 is provided on one side of the earring 2, a movable groove is provided on the outside of the mounting rod 3 inside the earring 2, a movable plate 5 slidably connected to the movable groove is installed on the outside of the mounting rod 3, a return spring 6 is installed between the two ends of one side of the movable plate 5 and the inner wall of the movable groove, the mounting rod 3 extends to the earring 2 A card block 7 is installed at one end of the outside, and a positioning block 8 is installed at one end of the card block 7. The cross-section of the card block 7 is "U"-shaped. The end of the mounting rod 3 extending to the inner side of the extension groove 4 is rotatably connected to a pull ring. The positioning assembly includes an adjusting disk 9. A mounting groove is opened at one end of the rod body 1. The adjusting disk 9 is rotatably connected to the inner side of the mounting groove. Springs 10 are installed at both ends of the top of the adjusting disk 9. A docking disk 11 is installed at the top of the spring 10. A positioning groove that is engaged with the positioning block 8 is opened at the top of the docking disk 11. The top of the rod body 1 is opened to extend to the inner side of the mounting groove. The docking groove 12 of the rod body 1 is provided with a card slot at both ends of the top of the mounting groove. The card slot and the card block 7 are card-engaged. The docking groove 12 and the card block 7 are card-engaged. When the device is in use, the bottom end of the earring 2 can be fitted with the rod body 1 so that the card block 7 is aligned with the docking groove 12 and snapped in. Then, the pull ring is buckled to push the mounting rod 3 inward, and the positioning block 8 and the positioning groove can be used to squeeze the docking plate 11, the reset spring 6 and the spring 10 downward, and then the adjusting plate 9 is driven to rotate. After the card block 7 is rotated to the horizontal direction, the pull ring is released to make the two sides of the card block 7 convex. The starting end can be fixed by inserting it into the inner side of the slot. When disassembling, hold the pull ring and push the installation rod 3 to squeeze the docking plate 11. After turning the clamp 7 to the longitudinal direction, it can be pulled out from the docking slot 12 to complete the disassembly. The structure is simple and the operation is convenient. The staff can quickly disassemble and assemble the rod body 1 and the earring 2 by pressing and turning, which improves the work efficiency and reduces the workload of the staff. There is no need to rotate the nut to fix it one circle at a time, nor is there a need to use a clamp to assist the staff in welding step by step. It is also convenient for the staff to repair and replace the damaged rod body 1 or earring 2.

[0023] In this embodiment, if Figure 1 , Figure 2 and Figure 3As shown, a lifting groove is provided on the outer wall of the earring 2 at one side of the extension groove 4, the lifting groove is connected to the inner side of the extension groove 4, a lifting plate 13 is slidably connected to the inner side of the lifting groove, a lifting groove is provided on one side of the lifting plate 13, the lifting plate 13 is slidably connected to the extension groove 4, limiting grooves extending to the inner side of the extension groove 4 are provided on both sides of the inner wall of the lifting groove, limiting blocks 14 slidably connected to the limiting grooves are installed at both ends of the lifting plate 13, a first fixing piece 15 is embedded and installed at one end of the lifting plate 13, and a corresponding first fixing piece 15 is embedded and installed on the inner wall of the extension groove 4 The second fixing part, one of the first fixing part 15 and the second fixing part is a first magnet, and the other of the first fixing part 15 and the second fixing part is a second magnet. The magnetic poles of the first magnet and the second magnet are opposite and attract each other. By holding the lifting plate 13 on the inner side of the lifting groove in cooperation with the limiting block 14 and the limiting groove, the lifting plate 13 is driven to move, so that the first fixing part 15 embedded in one end of the lifting plate 13 and the second fixing part embedded in the inner wall of the extension groove 4 are adsorbed and fixed, and the pull ring can be closed on the inner side of the extension groove 4 to avoid accidental touching after assembly.

[0024] The implementation principle of the hydraulic oil cylinder piston rod and earring connection structure of the embodiment of the present application is as follows: when the device is in use, the bottom end of the earring 2 can be fitted with the rod body 1, so that the clamping block 7 is aligned with the docking groove 12 and inserted, and then the pull ring is buckled to push the installation rod 3 inward, and the positioning block 8 and the positioning groove can be used to squeeze the docking plate 11, the reset spring 6 and the spring 10 to move downward, and then the adjusting disk 9 is driven to rotate, and the clamping block 7 is rotated to the horizontal direction and then the pull ring is released so that the protruding ends on both sides of the clamping block 7 are inserted into the inner side of the clamping groove to complete the fixation. When disassembling, the pull ring is buckled again to push the installation rod 3 to squeeze the docking plate 11, and the clamping block 7 is rotated to the longitudinal direction and then released to be pulled out of the docking groove 12 to complete the disassembly. The structure is simple and easy to operate. The staff can quickly disassemble and assemble the rod body 1 and the earring 2 by pressing and turning, which improves work efficiency and reduces the workload of the staff. There is no need to rotate the nut one circle at a time to fix it, nor is there a need to use a clamp to assist the staff in welding step by step. It is also convenient for the staff to repair and replace the damaged rod body 1 or earring 2. The lifting plate 13 on the inner side of the lifting groove is buckled to cooperate with the limit block 14 and the limit groove to drive the lifting plate 13 to move, so that the first fixing part 15 embedded in one end of the lifting plate 13 and the second fixing part embedded in the inner wall of the extension groove 4 are adsorbed and fixed, and the pull ring can be closed on the inner side of the extension groove 4 to avoid accidental touching after assembly.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic cylinder piston rod and earring connection structure, comprising a rod body (1), characterized in that: The top end of the rod body (1) is clamped with an earring (2) through a positioning mechanism. The positioning mechanism includes a docking assembly and a positioning assembly. The docking assembly includes a mounting rod (3). The mounting rod (3) is slidably connected to the inside of the earring (2). An extension groove (4) is provided on one side of the earring (2). A movable groove is provided inside the earring (2) and is located outside the mounting rod (3). A movable disk (5) slidably connected to the movable groove is installed on the outside of the mounting rod (3). Reset springs (6) are installed between both ends of one side of the movable disk (5) and the inner wall of the movable groove. A clamping block (7) is installed on one end of the mounting rod (3) extending to the outside of the earring (2). A positioning block (8) is installed on one end of the clamping block (7).

2. A hydraulic cylinder piston rod and earring connection structure according to claim 1, characterized in that: The cross section of the clamping block (7) is U-shaped, and one end of the mounting rod (3) extending to the inner side of the extension groove (4) is rotatably connected to a pull ring.

3. The hydraulic cylinder piston rod and earring connection structure according to claim 1, characterized in that: The positioning assembly comprises an adjusting disk (9), a mounting groove is provided at one end of the rod body (1), the adjusting disk (9) is rotatably connected to the inner side of the mounting groove, springs (10) are installed at both ends of the top of the adjusting disk (9), a docking disk (11) is installed at the top of the spring (10), a positioning groove is provided at the top of the docking disk (11) and is engaged with the positioning block (8), a docking groove (12) is provided at the top of the rod body (1) and extends to the inner side of the mounting groove, and a clamping groove is provided at both ends of the top of the rod body (1) and is engaged with the clamping block (7), and the docking groove (12) and the clamping block (7) are engaged with each other.

4. The hydraulic cylinder piston rod and earring connection structure according to claim 1, characterized in that: The outer wall of the earring (2) is provided with a pulling groove on one side of the extension groove (4), the pulling groove is connected to the inner side of the extension groove (4), a pulling plate (13) is slidably connected to the inner side of the pulling groove, and a pulling groove is provided on one side of the pulling plate (13), and the pulling plate (13) is slidably connected to the extension groove (4).

5. The hydraulic cylinder piston rod and earring connection structure according to claim 4, characterized in that: Limiting grooves extending to the inner side of the extension groove (4) are provided on both sides of the inner wall of the lifting groove, and limiting blocks (14) slidably connected to the limiting grooves are installed at both ends of the lifting plate (13).

6. The hydraulic cylinder piston rod and earring connection structure according to claim 4, characterized in that: A first fixing member (15) is embedded and installed at one end of the lifting plate (13), and a second fixing member corresponding to the first fixing member (15) is embedded and installed on the inner wall of the extension groove (4).

7. The hydraulic cylinder piston rod and earring connection structure according to claim 6, characterized in that: One of the first fixing member (15) and the second fixing member is a first magnet, and the other of the first fixing member (15) and the second fixing member is a second magnet. The magnetic poles of the first magnet and the second magnet are opposite and attract each other.

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