Bidirectional buffering oil cylinder

Abstract

The utility model relates to the technical field of oil cylinders, in particular to a bidirectional buffering oil cylinder which comprises a cylinder body, a first oil hole, a second oil hole and a piston rod, the first oil hole and the second oil hole are formed in the left end and the right end of the cylinder body, a piston of the piston rod is arranged on one side of the cylinder body in a telescopic mode, and an inner ring groove is formed in the periphery of one side of the piston rod. The hoop ring can be in sliding connection with the surface of the cylinder body through the arc-shaped protection plates, so that when the piston rod and the cylinder body stretch out and draw back, the stable guiding and rotation limiting effects can be achieved, the overall use stability of the oil cylinder is improved, meanwhile, the outer thickening plate distributed on the periphery of the cylinder body and the two arc-shaped protection plates can also achieve a certain protection effect, and the service life of the oil cylinder is prolonged. The use safety of the whole cylinder body is improved; in addition, the piston rod slides on the inner side of the cylinder body in a multi-deformation fit mode through the stop pipe, so that rotation of the piston rod during stretching can be further limited, and internal and external double limiting is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bidirectional buffering oil cylinder and relates to the technical field of oil cylinders. BACKGROUND

[0002] The double-acting hydraulic cylinder refers to the hydraulic cylinder capable of inputting pressure oil from both sides of the piston, which is often used as a driving assembly for lifting and positioning. UTILITY MODEL CONTENTS

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a bidirectional buffering oil cylinder to solve the problems mentioned in the background.

[0004] The utility model relates to the following technical scheme: including cylinder body, first oil hole and second oil hole arranged at the left and right ends of the cylinder body, and piston rod arranged on one side of the cylinder body in a telescopic manner, an inner ring groove is formed on one side of the piston rod, a hoop ring is fixedly sleeved on the inner ring groove, the hoop ring comprises a first half-arc hoop and a second half-arc hoop, the first half-arc hoop and the second half-arc hoop are tightly embraced on both sides of the inner ring groove, and are locked by bolts;

[0005] The bottom of the first half-arc hoop and the second half-arc hoop is fixedly provided with an extension rod, an arc-shaped guard plate is integrally arranged on one side of the extension rod, the arc-shaped guard plate is distributed around the outer periphery of the cylinder body, and the arc-shaped guard plate is slidably connected with the cylinder body along the direction of the piston rod.

[0006] Further, an outer thickened plate is fixedly arranged outside the cylinder body, the outer thickened plate is provided with a plurality of guide sliding grooves, the first half-arc hoop and the second half-arc hoop are located outside the outer thickened plate, the first half-arc hoop and the second half-arc hoop are fixedly locked with sliding blocks on one side, and the sliding blocks are slidably connected with the guide sliding grooves respectively.

[0007] Further, rubber arc pads are arranged inside the first half-arc hoop and the second half-arc hoop, and the rubber arc pads abut against the surface of the inner ring groove of the piston rod.

[0008] Further, a stop pipe is connected to one end of the piston rod, the stop pipe is located inside the cylinder body, and a piston is mounted to the other end of the stop pipe.

[0009] Further, the inner wall of the cylinder body is polygonal, and the outer surface of the stop pipe is adapted to the inner wall of the cylinder body.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] The utility model discloses a through setting up the hoop ring in the inner ring groove of the outer end of piston rod, and the hoop ring can be connected with the surface of cylinder through the arc-shaped guard plate and slide, so that the piston rod and cylinder can play the stable guide and the rotation limiting effect when stretching and retracting, improve the stability of the overall use of oil cylinder, and the outer thickened plate and two arc-shaped guard plates distributed on the outer periphery of the cylinder can also play a certain protection effect and improve the use safety of the overall cylinder.

[0012] In addition, the piston rod is adapted to slide with the inner side of the cylinder through the stop pipe, so that the rotation of the piston rod during stretching and retracting can be further limited, and the inner and outer double limiting can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0013] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of the non-restrictive embodiments with reference to the accompanying drawings:

[0014] Fig. 1 It is the structural schematic diagram of the utility model;

[0015] Fig. 2 It is the side view structural schematic diagram of the hoop ring and the arc-shaped guard plate of the utility model;

[0016] Fig. 3 It is the side view connecting structural schematic diagram of the hoop ring and the arc-shaped guard plate and the cylinder of the utility model;

[0017] In the drawing: cylinder 1, first oil hole 2, second oil hole 3, piston rod 4, inner ring groove 41, stop pipe 5, piston 51, hoop ring 6, first half hoop 61, second half hoop 62, rubber arc pad 63, extension rod 7, arc-shaped guard plate 8, sliding block 81, outer thickened plate 9, guide sliding slot 91. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0019] Please refer to Figs. 1-3The utility model provides a technical scheme of bidirectional buffer oil cylinder: including cylinder body 1, first oil hole 2 and second oil hole 3 of being located the both ends of cylinder body 1 left and right and the piston rod 4 of piston telescopic setting in one side of cylinder body 1, the inner ring groove 41 of being provided with in the outer periphery of one side of piston rod 4, the inner ring groove 41 is fixed and is sleeved with the hoop ring 6, the hoop ring 6 includes first half arc hoop 61 and second half arc hoop 62, and first half arc hoop 61 and second half arc hoop 62 are mutually embraced in the both sides of inner ring groove 41, and are mutually locked by bolt, the design of inner ring groove 41 can be as a certain clamping point, effectively avoid first half arc hoop 61 and second half arc hoop 62 to separate from the connecting position of piston rod 4, the bottom of first half arc hoop 61 and second half arc hoop 62 is fixed with the extension rod 7, the arc-shaped guard plate 8 of one side integral setting is provided with in the extension rod 7, the extension rod 7 can make arc-shaped guard plate 8 be located the outside of cylinder body 1, and make arc-shaped guard plate 8 adapt around the distribution of the outer periphery of cylinder body 1, and arc-shaped guard plate 8 and cylinder body 1 are connected along the direction of piston rod 4 and slide, specifically, the outside of cylinder body 1 is fixed with the outer thick plate 9, the outer thick plate 9 is provided with multiple guide sliding grooves 91, first half arc hoop 61 and second half arc hoop 62 are located the outside of outer thick plate 9, and first half arc hoop 61 and second half arc hoop 62 are locked with the sliding block 81 on one side, and are slidably connected with guide sliding groove 91 respectively through sliding block 81, through the connection of outer thick plate 9 and first half arc hoop 61 and second half arc hoop 62, can improve the connecting strength between piston rod 4 and cylinder body 1, and piston rod 4 is also not prone to rotating when extending, and the setting of outer thick plate 9, first half arc hoop 61 and second half arc hoop 62 can also have certain protection effect, avoid the direct effect of external excessive impact force on piston rod 4 and cylinder body 1.

[0020] Among them, the inner side of first half arc hoop 61 and second half arc hoop 62 is provided with rubber arc pad 63, and is abutted with the surface of inner ring groove 41 of piston rod 4 through rubber arc pad 63, which can improve the close connection effect of hoop ring 6 and piston rod 4.

[0021] In addition, one end of the piston rod 4 is connected with a stop tube 5, and the stop tube 5 is located inside the cylinder body 1. The other end of the stop tube 5 is provided with a piston 51. The inner wall of the cylinder body 1 is polygonal, and the outer surface of the stop tube 5 is matched with the inner wall of the cylinder body 1. In this way, when the piston rod 4 is extended or retracted, it can slide along the polygonal inner wall of the cylinder body 1 under the action of the stop tube 5, further playing a role in limiting rotation.

[0022] Specific in use, can first be first half hoop 61 and the second half hoop 62 are embraced tightly each other on inner ring groove 41, and are locked by bolt each other, locking is by the elastic action and the antiskid effect of rubber arc pad 63 and is pressed against piston rod 4, the subject improves the connection tightness;Because the guide sliding groove 91 inner side of extra-thick plate 9 is slidably provided with sliding block 81, therefore by the screw hole of first half hoop 61 and the screw hole of second half hoop 62 are aligned on the screw hole of sliding block 81 are locked by screw, make that hoop ring 6 can be guided and connected by two sliding blocks 81 respectively with the guide sliding groove 91 on cylinder body 1 sliding, namely can let piston rod 4 and cylinder body 1 when telescopic use greatly improve stability and security.

[0023] Need to be explained, the utility model discloses a bidirectional buffer oil cylinder, its main improvement is carried out to the above structure, the function, component and structure not mentioned, can adopt the component and structure of prior art to carry out implementation when can realize corresponding function.

[0024] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model, for those skilled in the art, obviously 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 characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, 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.

[0025] 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, the description manner of the specification is only for clarity, the skilled person should regard the specification as a whole, and the technical solutions in each embodiment can also be combined appropriately to form other embodiments that the skilled person can understand.

Claims

1. A bidirectional buffer oil cylinder, comprising a cylinder body (1), a first oil hole (2) and a second oil hole (3) arranged at both ends of the cylinder body (1), and a piston rod (4) arranged in the cylinder body (1) in an extending and retracting manner, characterized in that: an inner ring groove (41) is arranged on one side of the piston rod (4), a hoop ring (6) is fixedly sleeved on the inner ring groove (41), the hoop ring (6) comprises a first half-arc hoop (61) and a second half-arc hoop (62), the first half-arc hoop (61) and the second half-arc hoop (62) are tightly held on both sides of the inner ring groove (41), and the first half-arc hoop (61) and the second half-arc hoop (62) are locked by bolts; an extension rod (7) is fixedly arranged at the bottom of the first half-arc hoop (61) and the second half-arc hoop (62), an arc-shaped guard plate (8) is integrally arranged on one side of the extension rod (7), the arc-shaped guard plate (8) is distributed around the outer periphery of the cylinder body (1), and the arc-shaped guard plate (8) is slidably connected with the cylinder body (1) along the direction of the piston rod (4).

2. A dual direction cushioned hydraulic cylinder as claimed in claim 1, wherein: An outer thickened plate (9) is fixedly arranged on the outer side of the cylinder body (1), a plurality of guide sliding grooves (91) are arranged on the outer thickened plate (9), the first half-arc hoop (61) and the second half-arc hoop (62) are located on the outer side of the outer thickened plate (9), and the first half-arc hoop (61) and the second half-arc hoop (62) are locked by sliding blocks (81) on one side and are slidably connected with the guide sliding grooves (91) through the sliding blocks (81), respectively.

3. A dual direction cushioned hydraulic cylinder as claimed in claim 1, wherein: A rubber arc pad (63) is arranged on the inner side of the first half-arc hoop (61) and the second half-arc hoop (62), and the rubber arc pad (63) abuts against the surface of the inner ring groove (41) of the piston rod (4).

4. A dual direction cushioned hydraulic cylinder as claimed in claim 1, wherein: A stop pipe (5) is connected to one end of the piston rod (4), the stop pipe (5) is located on the inner side of the cylinder body (1), and a piston (51) is arranged at the other end of the stop pipe (5).

5. A dual direction cushioned hydraulic cylinder as claimed in claim 4 wherein: The inner wall of the cylinder body (1) is polygonal, and the outer surface of the stop pipe (5) is matched with the inner wall of the cylinder body (1).

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