Buffering oil cylinder

Abstract

The utility model provides a buffering oil cylinder, which belongs to the technical field of buffering oil cylinders and structurally comprises a cylinder body, a piston rod is movably sleeved in a cavity of the cylinder body, a buffering component is movably sleeved at the right end in the cavity of the cylinder body, and the right side surface of the piston rod movably butts against the left side surface of the buffering component in a buffering manner. The first spring and the anti-disengaging pull rod set can be elastically compressed to provide multiple buffering acting force, a sealing ring on the buffering base set abuts against the inner wall of the cylinder body in a sealed mode to provide buffering acting force, the rubber material design of a buffering pressing pad can provide buffering acting force, and under the cooperation of the multiple buffering acting force, the buffering performance of the buffering assembly is improved, and the service life of the buffering assembly is prolonged. Good performance buffering is effectively provided for return stroke at the end point stage of the piston rod, large impact force on the cylinder body is avoided, and the service life of the oil cylinder is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a buffer oil cylinder belongs to buffer oil cylinder technical field. BACKGROUND

[0002] The oil cylinder is output force and piston effective area and its both sides pressure difference proportional linear motion type executing element, its function is to convert hydraulic energy into mechanical energy.

[0003] The oil cylinder reciprocates in the piston rod in the working state, will produce certain impact force to the cylinder, and will produce noise, and in the long-term use process, will damage the cylinder and piston, for this, need to carry out buffering in the terminal stage of the piston rod movement's fall, to reduce the impact force, satisfy the use performance requirement of hydraulic oil cylinder, prolong the service life of oil cylinder, in view of the above demand, the utility model provides a buffer oil cylinder. UTILITY MODEL CONTENTS

[0004] In view of the deficiency of prior art, the utility model aims at providing a buffer oil cylinder to solve the existing problems.

[0005] In order to realize the above object, the utility model is through the following technical scheme to realize: a buffer oil cylinder, its structure includes cylinder body, and the piston rod is movably sleeved in the cylinder body cavity, and the buffer assembly is movably sleeved in the right end of the cylinder body cavity, and the right side surface of the piston rod is movably buffered and abuts with the left side surface of the buffer assembly.

[0006] The buffer assembly includes a fixed base group, the buffer seat group is movably sleeved on the left side of the fixed base group, and the first spring is sleeved between the fixed base group and the buffer seat group, and a plurality of anti-pulling rod groups are connected between the fixed base group and the buffer seat group.

[0007] Further improvement is that the tail of the right side surface of the piston rod is provided with a buffer pressure pad, and the buffer pressure pad is made of rubber material.

[0008] Further improvement is that the fixed base group includes a fixed base body, a square buffer sleeve block is arranged on the left side surface of the fixed base body, a hexagonal buffer sleeve groove is formed in the left side surface of the square buffer sleeve block, a spring lower sleeve opening is formed in the bottom of the hexagonal buffer sleeve groove, and a plurality of activity grooves for movably sleeving the anti-pulling rod group are formed on the upper and lower sides of the square buffer sleeve block.

[0009] Further improvement is that the buffer seat group includes a buffer seat body, an activity cavity is formed in the left side surface of the buffer seat body, a buffer pressure column for sleeving in the hexagonal buffer sleeve groove is arranged in the middle of the activity cavity, a spring upper sleeve opening is formed in the right side surface of the buffer pressure column, a plurality of internal thread holes are formed on the upper and lower ends of the cavity bottom of the activity cavity, and a sealing ring is sleeved on the circumference of the buffer seat body.

[0010] Further improvement is that each of the anti-pulling rod groups comprises a pull rod, an outer thread is formed at the left end of the pull rod body, a second spring is sleeved on the pull rod body, and a clamping block is arranged at the right tail of the pull rod.

[0011] Further improvement is that the cylinder body and the piston rod are prior art, and the structure is not described one by one.

[0012] Further improvement is that the rebound force of the first spring and the second spring is greater than the abutting force of the sealing ring on the inner wall of the cylinder body.

[0013] The beneficial effects of the utility model are:

[0014] The utility model provides a buffer oil cylinder, through the structural combination design of the buffer assembly of the fixed base group, the buffer seat group, the first spring and the anti-pulling rod group in the right end of the cylinder cavity, a kind of buffer oil cylinder is constituted, when piston rod is retracted right softness and presses buffer seat group, first spring and anti-pulling rod group will provide multiple buffering forces by elastic compression, and the sealing ring on buffer seat group and the sealing abutting of the inner wall of cylinder body can also provide buffering force, the rubber material design of buffer pressure pad can also provide buffering force, under the synergy of multiple buffering forces, the buffering performance of buffer assembly is improved, effectively the end stage return of piston rod is provided with good performance buffering, avoid the great impact force to cylinder body, effectively improve the service life of oil cylinder. DRAWINGS

[0015] Figure 1 It is a buffer oil cylinder structure schematic view of the utility model;

[0016] Figure 2 It is a buffer assembly structure schematic view of the utility model;

[0017] Figure 3 It is a fixed base group structure schematic view of the utility model;

[0018] Figure 4 It is a buffer seat group structure schematic view of the utility model;

[0019] Figure 5 It is a anti-pulling rod group structure schematic view of the utility model. Specific embodiments

[0020] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] Please refer to Figures 1-5The utility model discloses a buffer oil cylinder schematic diagram technical scheme: its structure includes cylinder body 1, and the movable sleeve of piston rod 2 is arranged in the cavity of cylinder body 1, and the movable sleeve of buffer assembly 3 is arranged in the right end of the cavity of cylinder body 1, the right side surface of piston rod 2 and the left side surface of buffer assembly 3 movable buffer abut, buffer assembly 3 includes fixed base group 31, and the movable sleeve of buffer seat group 32 is arranged in the left side of fixed base group 31, and the first spring 33 is sleeved between fixed base group 31 and buffer seat group 32, a plurality of anti -unhooking pull rod groups 34 are connected between the upper and lower sides of fixed base group 31 and buffer seat group 32.

[0022] The right side surface of piston rod 2 is provided with buffer pressure pad 21, and buffer pressure pad 21 is of rubber material.

[0023] The fixed base group 31 includes fixed base body 311, and the middle part of the left side surface of fixed base body 311 is provided with square buffer sleeve block 312, and the left side surface of square buffer sleeve block 312 is provided with hexagonal buffer sleeve groove 313 in the middle part, and the spring lower sleeve opening 314 is formed in the middle part of the groove bottom of hexagonal buffer sleeve groove 313, and a plurality of movable grooves 315 for the movable sleeve of anti -unhooking pull rod group 34 are formed in the upper and lower sides of square buffer sleeve block 312.

[0024] The buffer seat group 32 includes buffer seat body 321, and the left side surface of buffer seat body 321 is provided with movable cavity 322, and the movable cavity 322 is provided with buffer pressure column 323 for being sleeved in hexagonal buffer sleeve groove 313 in the middle part, and the right side surface of buffer pressure column 323 is provided with spring upper sleeve opening 324, and a plurality of internal thread holes 325 are formed in the upper and lower ends of the cavity bottom of movable cavity 322, and the buffer seat body 321 is sleeved with sealing ring 326.

[0025] Each anti -unhooking pull rod group 34 includes pull rod 341, and the left end of the rod body of pull rod 341 is provided with external thread 342, and the rod body of pull rod 341 is sleeved with second spring 343, and the tail of the right side of pull rod 341 is provided with card block 344.

[0026] Working principle:

[0027] First, when the piston rod 2 is retracted, there is no pressure in the right side of the cavity of cylinder body 1, at this time, under the rebound force of first spring 33 and two second springs 343, buffer seat group 32 is restored first, and after buffer pressure pad 21 is right and the left side surface of buffer seat group 32 is soft, first spring 33 and two second springs 343 are retracted and provide buffer effect force, and sealing ring 326 is in abutting sealing state with the inner wall of cylinder body 1, and also can provide buffer effect, in addition, the rubber material design of buffer pressure pad 21 also can provide buffer effect, under the above-mentioned multiple buffer effect auxiliary, the buffer effect performance of piston rod 2 is good when retracted to the terminal stage, the impact force of cylinder body 1 is reduced, and the service life of cylinder body 1 is improved.

[0028] In addition, the design of the hexagonal buffer sleeve groove 313 and the square buffer sleeve block 312 ensures that the buffer seat group 32 can only move linearly and cannot rotate.

[0029] In addition, the design of the anti-pulling rod group 34 between the fixed base group 31 and the buffer seat group 32 can prevent the buffer seat group 32 from falling off.

[0030] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0031] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A cushioned oil cylinder characterized by: Its structure includes cylinder (1), and the piston rod (2) is movably sleeved in the cavity of the cylinder (1), and the buffer assembly (3) is movably sleeved in the right end of the cavity of the cylinder (1), the right side of the piston rod (2) is movably buffered against the left side of the buffer assembly (3); The buffer assembly (3) comprises a fixed base group (31), the buffer seat group (32) is movably sleeved on the left side of the fixed base group (31), and the first spring (33) is sleeved between the fixed base group (31) and the buffer seat group (32).

2. A cushioned cylinder according to claim 1, characterized in that: The right side of the piston rod (2) is provided with a buffer pressure pad (21), and the buffer pressure pad (21) is made of rubber.

3. A cushioned cylinder according to claim 2, characterized in that: The fixed base group (31) comprises a fixed base body (311), and a square buffer sleeve block (312) is arranged on the left side of the fixed base body (311), a hexagonal buffer sleeve groove (313) is formed in the middle of the left side of the square buffer sleeve block (312), a spring lower sleeve opening (314) is formed in the bottom of the hexagonal buffer sleeve groove (313), and a plurality of active grooves (315) for movably sleeving the anti-pulling rod group (34) are formed on the upper and lower sides of the square buffer sleeve block (312).

4. A cushioned ram as defined in claim 3, wherein: The buffer seat group (32) comprises a buffer seat body (321), and an active cavity (322) is formed in the left side of the buffer seat body (321), a buffer pressure column (323) for sleeving in the hexagonal buffer sleeve groove (313) is arranged in the middle of the active cavity (322), a spring upper sleeve opening (324) is formed in the right side of the buffer pressure column (323), a plurality of internal thread holes (325) are formed in the upper and lower ends of the cavity bottom of the active cavity (322), and a sealing ring (326) is sleeved on the buffer seat body (321).

5. A cushioned ram as defined in claim 4, wherein: Each anti-pulling rod group (34) comprises a pull rod (341), an external thread (342) is formed in the left end of the rod body of the pull rod (341), a second spring (343) is sleeved on the rod body of the pull rod (341), and a clamping block (344) is arranged at the tail of the right side of the pull rod (341).

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