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CN-224223037-U - Piston rod locking device

CN224223037UCN 224223037 UCN224223037 UCN 224223037UCN-224223037-U

Abstract

The utility model relates to the field of white car body welding and discloses a piston rod locking device which is characterized by comprising an air passage cover, a piston, a locking structure, a spring fixing block, a long spring, a short spring and a protective cover, wherein the piston is embedded in the air passage cover, the locking structure comprises a waist-shaped locking block and a locking circular ring, the waist-shaped locking block is embedded in the locking circular ring and is in a trisection uniform array, the air passage cover is connected with the locking circular ring, the piston is supported by the short spring, the locking circular ring is connected with the protective cover, the spring fixing block is connected with the long spring, the long spring is connected with the spring fixing blocks at the upper end and the lower end, and the upper end and the lower end of the long spring are in symmetrical structures. Compared with the prior art, the cylinder locking device has the advantages that the piston rod is locked by the mechanical structure in the air-break state, the working state of the cylinder is fixed, and the use safety of the cylinder is greatly improved.

Inventors

  • JIANG TIEJUN

Assignees

  • 上海德容智能科技有限公司

Dates

Publication Date
20260512
Application Date
20250506

Claims (10)

  1. 1. The piston rod locking device is characterized by comprising an air passage cover, a piston, a locking structure, a spring fixing block, a long spring, a short spring and a protective cover; the piston is embedded in the gas circuit cover; the locking structure comprises a waist-shaped locking block and a locking circular ring, wherein the waist-shaped locking block is embedded in the locking circular ring and is a trisection uniform array; the air passage cover is connected with the locking circular ring; The piston with waist formula latch segment is by short spring supports, the locking ring with the safety cover is connected, the spring fixed block with long spring coupling, the spring fixed block at both ends about long spring coupling.
  2. 2. The piston rod locking device according to claim 1, wherein the air passage cover has a hollow cylindrical structure and is made of aluminum alloy.
  3. 3. The piston rod locking device of claim 1, wherein a sealing ring is disposed between the piston and an inner wall of the air passage cover.
  4. 4. The piston rod locking device according to claim 1, wherein the contact surface of the waist-shaped locking block and the piston is provided with anti-slip lines for stable connection between the waist-shaped locking block and the piston.
  5. 5. The piston rod locking device of claim 1, wherein the locking ring has a ramp structure inside.
  6. 6. The piston rod locking device of claim 1 wherein said waist-shaped locking blocks move radially on said locking ring ramp structure.
  7. 7. The piston rod locking device of claim 1, wherein the spring retainer block is made of stainless steel.
  8. 8. The piston rod locking device according to claim 1, wherein when the gas is introduced into the gas passage cover, the pressure generated by the introduced gas pushes the piston to move downwards in the gas passage cover, and the movement of the piston drives the waist-shaped locking block to move.
  9. 9. The piston rod locking device according to claim 1, wherein when the air passage cover is in an air-off state, the spring fixing block stretches towards two ends due to the elasticity of the long spring, and the stretching of the spring fixing block drives the waist-shaped locking blocks at the upper end and the lower end to be respectively extruded towards the upper side and the lower side.
  10. 10. The piston rod locking device of claim 1, wherein the protective cover has a cylindrical configuration.

Description

Piston rod locking device Technical Field The utility model relates to the field of welding of white car bodies, in particular to a piston rod locking device of a turnover cylinder. Background At present, the load borne by the overturning cylinder on the white car body welding production line is large, and when the overturning cylinder is out of air, the overturning is carried out, and due to the large load, the connected tool can freely fall down, so that the production safety can be influenced. There is a degree of production hidden trouble. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides a piston rod locking device, which has the advantages of locking a piston rod by utilizing a mechanical structure in an air-break state, fixing the working state of an air cylinder, greatly increasing the use safety of the air cylinder and solving the problems in the background art. The utility model provides a piston rod locking device which comprises an air passage cover, a piston, a locking structure, a spring fixing block, a long spring, a short spring and a protective cover, wherein the air passage cover is arranged on the piston; The piston is embedded in the gas circuit cover; The locking structure comprises a waist-shaped locking block and a locking circular ring, wherein the waist-shaped locking block is embedded in the locking circular ring and is in a trisection uniform array; The air passage cover is connected with the locking circular ring; the piston is supported by short spring with waist formula latch segment, and the locking ring is connected with the safety cover, and the spring fixed block is connected with long spring, and the spring fixed block at both ends about long spring connection. In one embodiment of the utility model, the air passage cover has a hollow cylindrical structure and is made of aluminum alloy. In one embodiment of the utility model, a sealing ring is arranged between the piston and the inner wall of the gas path cover. In one embodiment of the utility model, the contact surface of the waist-shaped locking block and the piston is provided with anti-slip lines for stable connection between the waist-shaped locking block and the piston. In one embodiment of the utility model, the locking ring has a ramp structure inside. In one embodiment of the utility model, the waist-shaped locking blocks move radially on the locking ring ramp structure. In one embodiment of the utility model, the spring fixing block is made of stainless steel. In one embodiment of the utility model, when the gas is introduced into the gas path cover, the pressure generated by the introduced gas pushes the piston to move downwards in the gas path cover, and the movement of the piston drives the waist-shaped locking block to move. In one embodiment of the utility model, when the air circuit cover is in air interruption, the spring fixing blocks stretch towards the two ends due to the elasticity of the long springs, and the stretching of the spring fixing blocks drives the waist-shaped locking blocks at the upper end and the lower end to be respectively extruded towards the upper side and the lower side. In one embodiment of the utility model, the protective cover has a cylindrical configuration. Compared with the prior art, the utility model has the following beneficial effects: when this device realizes upset cylinder outage, the device can form a locking state with the piston rod, holds the piston rod, makes the cylinder stop operation and fix the operating condition when the outage, has solved the potential safety hazard problem when producing the outage. Drawings The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features and aspects of the application and together with the description, serve to explain the principles of the application. Fig. 1 shows a schematic structural view of a piston rod locking device according to an embodiment of the present application; Detailed Description Various exemplary embodiments, features and aspects of the application will be described in detail below with reference to the drawings. In the drawings, like reference numbers indicate identical or functionally similar elements. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated. It should be understood, however, that the terms "center," "longitudinal," "transverse," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the utility model or simplifying the description, and do not indicate or imply t