CN213298667U - Piston type hydraulic buffer - Google Patents
Piston type hydraulic buffer Download PDFInfo
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- CN213298667U CN213298667U CN202022319161.0U CN202022319161U CN213298667U CN 213298667 U CN213298667 U CN 213298667U CN 202022319161 U CN202022319161 U CN 202022319161U CN 213298667 U CN213298667 U CN 213298667U
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- piston
- corrugated pipe
- hydraulic buffer
- outer ring
- ferrule
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Abstract
The utility model relates to the technical field of safety buffer devices, in particular to a piston type hydraulic buffer, which comprises a piston cylinder, a piston rod, a reset spring and a hit head, wherein a dustproof structure is arranged between the piston rod and the piston cylinder; the dustproof structure comprises a fastening bolt, an extrusion plate, a corrugated pipe and a ferrule; the end part of the piston cylinder is provided with an annular groove, the outer ring of the end part of the piston cylinder is uniformly in threaded connection with a plurality of fastening bolts, the end part of each fastening bolt penetrates into the annular groove and extrudes one plate surface of the extrusion plate, one end of the corrugated pipe is extruded between the other plate surface of the extrusion plate and the side wall of the annular groove, and the other end of the corrugated pipe is sleeved on the side wall of the outer ring of the collided head; the outer ring of the collided head is in threaded connection with the inner ring of the ferrule, and the other end of the corrugated pipe is arranged between the inner ring of the ferrule and the outer ring of the collided head.
Description
Technical Field
The utility model relates to a safety buffer technical field specifically is a piston hydraulic buffer.
Background
The hydraulic buffer (shock absorber) buffers and decelerates the object acting on the hydraulic buffer to stop by means of hydraulic damping, and plays a certain protection role. The safety buffer device is suitable for mechanical equipment such as hoisting transportation, elevators, metallurgy, harbor machinery, railway vehicles and the like, and is used for preventing the mechanism from being damaged due to hard collision in the working process.
When hydraulic buffer used in dry and more dust operational environment, the dust particulate matter adhesion of air is on the piston rod, after the piston rod retracted the piston cylinder, the particulate matter can be with the outer lane of piston rod and the inner circle wearing and tearing of piston cylinder, the oil tightness that leads to hydraulic buffer receives destruction, cause hydraulic buffer normal use of failing, for this reason through settling dustproof construction on hydraulic buffer, this dustproof construction does not prevent external particulate matter adhesion on the piston rod at all, also slow down volatilizing of lubricating oil in the piston cylinder simultaneously, slow down the wearing and tearing between piston cylinder and the piston rod, the life of extension hydraulic buffer.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a piston hydraulic buffer, through settling dustproof construction on hydraulic buffer, this dustproof construction prevents the adhesion of external particulate matter on the piston rod as far as, also slows down volatilizing of lubricating oil in the piston cylinder simultaneously, slows down the wearing and tearing between piston cylinder and the piston rod, prolongs hydraulic buffer's life. .
The purpose of the utility model can be realized by the following technical scheme:
a piston type hydraulic buffer comprises a piston cylinder, a piston rod, a return spring and a collided head; a dustproof structure is arranged between the piston rod and the piston cylinder; the dustproof structure comprises a fastening bolt, an extrusion plate, a corrugated pipe and a ferrule; the end part of the piston cylinder is provided with an annular groove, the outer ring of the end part of the piston cylinder is uniformly in threaded connection with a plurality of fastening bolts, the end part of each fastening bolt penetrates into the annular groove and extrudes one plate surface of the extrusion plate, one end of the corrugated pipe is extruded between the other plate surface of the extrusion plate and the side wall of the annular groove, and the other end of the corrugated pipe is sleeved on the side wall of the outer ring of the collided head; the outer ring of the collided head is in threaded connection with the inner ring of the ferrule, and the other end of the corrugated pipe is arranged between the inner ring of the ferrule and the outer ring of the collided head.
Preferably, the outer ring of the end face of the collided head is provided with a step; the step is two-stage step, attaches the other end of bellows on the step.
Preferably, the other plate surface of the extrusion plate is provided with a ring-shaped second bulge; the outer side wall of the other end of the corrugated pipe is provided with a first annular bulge, and the first bulge is embedded into a gap between every two adjacent bulges.
Preferably, a plurality of anti-slip strips for increasing friction force are uniformly arranged on the outer side wall of the ferrule.
Preferably, the end face of the fastening bolt is provided with a finger-imitating handle.
Preferably, the corrugated pipe is internally loaded with lubricating oil.
The utility model has the advantages that:
settle dustproof construction on hydraulic buffer, this dustproof construction prevents the adhesion of external particulate matter on the piston rod as far as, also slows down volatilizing of interior lubricating oil of piston cylinder simultaneously, slows down the wearing and tearing between piston cylinder and the piston rod, prolongs hydraulic buffer's life.
Through attaching the other end with the bellows on the step, increase the bellows and the area of contact between head and the lasso collided, both can increase the fastness between bellows and the piston rod, also can strengthen the leakproofness of bellows to the piston rod simultaneously, and through protruding embedding in the space between two adjacent No. two archs, both can increase the fastness between bellows and the piston cylinder, can strengthen the leakproofness that the bellows is alive to piston cylinder and piston rod again, guarantee that external particulate matter is difficult to the adhesion and guarantee on the piston rod that external particulate matter is difficult to the adhesion on the piston rod.
Drawings
To facilitate understanding of the invention for those skilled in the art, the invention is described in detail below with reference to the accompanying drawings.
Fig. 1 is a perspective view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
in the figure: the piston cylinder 1, the annular groove 11, the piston rod 2, the return spring 3, the collided head 4, the step 41, the dustproof structure 5, the fastening bolt 51, the finger-like handle 511, the extrusion plate 52, the second bump 521, the corrugated pipe 53, the first bump 531, the ferrule 54 and the anti-slip strip 541.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-4, a piston type hydraulic buffer comprises a piston cylinder 1, a piston rod 2, a return spring 3 and a crashing head 4; a dustproof structure 5 is arranged between the piston rod 2 and the piston cylinder 1; the dust-proof structure 5 comprises a fastening bolt 51, an extrusion plate 52, a corrugated pipe 53 and a ferrule 54; the end part of the piston cylinder 1 is provided with an annular groove 11, the outer ring of the end part of the piston cylinder 1 is uniformly in threaded connection with a plurality of fastening bolts 51, the end part of each fastening bolt 51 penetrates into the annular groove 11 and extrudes one plate surface of the extrusion plate 52, one end of the corrugated pipe 53 is extruded between the other plate surface of the extrusion plate 52 and the side wall of the annular groove 11, and the other end of the corrugated pipe 53 is sleeved on the side wall of the outer ring of the collided head 4; the outer ring of the collided head 4 is in threaded connection with the inner ring of the ferrule 54, and the other end of the corrugated pipe 53 is arranged between the inner ring of the ferrule 54 and the outer ring of the collided head 4; when the hydraulic buffer is applied to a dry working environment with more dust, dust particles in air are adhered to the piston rod 2, after the piston rod 2 is retracted into the piston cylinder 1, the outer ring of the piston rod 2 and the inner ring of the piston cylinder 1 are abraded by the particles, so that the oil tightness of the hydraulic buffer is damaged, and the hydraulic buffer cannot be normally used, therefore, the dustproof structure 5 is arranged on the hydraulic buffer, the dustproof structure 5 can not prevent the external particles from being adhered to the piston rod 2, meanwhile, the volatilization of lubricating oil in the piston cylinder 1 is slowed down, the abrasion between the piston cylinder 1 and the piston rod 2 is slowed down, and the service life of the hydraulic buffer is prolonged; firstly, one end of a corrugated pipe 53 is embedded into the annular groove 11, then the fastening bolt 51 is rotated, the fastening bolt 51 pushes the extrusion plate 52 towards one end of the corrugated pipe 53, meanwhile, the extrusion plate 52 extrudes one end of the corrugated pipe 53 on the groove wall of the annular groove 11, so that the corrugated pipe 53 is firmly fixed on the piston cylinder 1, the other end of the corrugated pipe 53 is sleeved on the outer ring of the collided head 4, then the ferrule 54 is rotationally fixed on the collided head 4, meanwhile, the ferrule 54 fastens the other end of the corrugated pipe 53 on the collided head 4, at the moment, two ends of the corrugated pipe 53 are respectively fixed on the piston cylinder 1 and the piston rod 2, when the piston rod 2 makes telescopic movement, the corrugated pipe 53 moves along with the piston rod 2, namely, the corrugated pipe 53 cannot influence.
As a specific embodiment of the present invention, a step 41 is provided on an outer ring of an end surface of the collided head 4; the step 41 is a two-stage step 41, and the other end of the corrugated pipe 53 is attached to the step 41; through attaching the other end of bellows 53 on step 41, increase the area of contact between bellows 53 and crashing head 4 and lasso 54, both can increase the fastness between bellows 53 and the piston rod 2, also can strengthen the leakproofness of bellows 53 to piston rod 2 simultaneously, guarantee that external particulate matter is difficult to the adhesion on piston rod 2.
As a specific embodiment of the present invention, a ring-shaped second protrusion 521 is disposed on the other surface of the pressing plate 52; the outer side wall of the other end of the corrugated pipe 53 is provided with a first annular bulge 531, and the first bulge 531 is embedded in a gap between two adjacent second bulges 521; through the space of a arch 531 embedding between two adjacent No. two protruding 521, both can increase the fastness between bellows 53 and the piston cylinder 1, can strengthen the leakproofness that bellows 53 is alive to piston cylinder 1 and piston rod 2 again, guarantee that external particulate matter is difficult to the adhesion on piston rod 2.
As a specific embodiment of the present invention, a plurality of anti-slip strips 541 for increasing friction force are uniformly disposed on the outer side wall of the ferrule 54; through the anti-slip strips 541, the friction force between the hand and the ferrule 54 is increased, so that the rotating removal and tightening of the ferrule 54 are more convenient and humanized.
As a specific embodiment of the present invention, the end surface of the fastening bolt 51 is provided with a finger-like handle 511; through imitative finger handle 511, under the condition that does not use external instrument, rotate fastening bolt 51 easily, humanized design.
As a specific embodiment of the present invention, the corrugated tube 53 contains lubricating oil therein; by containing the lubricating oil in the bellows 53, the lubricating oil treatment is performed before the piston cylinder 1 and the piston rod 2, and the service life of the hydraulic shock absorber is prolonged.
The working principle is as follows: firstly, one end of a corrugated pipe 53 is embedded into the annular groove 11, then the fastening bolt 51 is rotated, the fastening bolt 51 pushes the extrusion plate 52 towards one end of the corrugated pipe 53, meanwhile, the extrusion plate 52 extrudes one end of the corrugated pipe 53 on the groove wall of the annular groove 11, so that the corrugated pipe 53 is firmly fixed on the piston cylinder 1, the other end of the corrugated pipe 53 is sleeved on the outer ring of the collided head 4, then the ferrule 54 is rotationally fixed on the collided head 4, meanwhile, the ferrule 54 fastens the other end of the corrugated pipe 53 on the collided head 4, at the moment, two ends of the corrugated pipe 53 are respectively fixed on the piston cylinder 1 and the piston rod 2, when the piston rod 2 makes telescopic movement, the corrugated pipe 53 moves along with the piston rod 2, namely, the corrugated pipe 53 cannot influence.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A piston type hydraulic buffer comprises a piston cylinder, a piston rod, a return spring and a collided head; the method is characterized in that: a dustproof structure is arranged between the piston rod and the piston cylinder; the dustproof structure comprises a fastening bolt, an extrusion plate, a corrugated pipe and a ferrule; the end part of the piston cylinder is provided with an annular groove, the outer ring of the end part of the piston cylinder is uniformly in threaded connection with a plurality of fastening bolts, the end part of each fastening bolt penetrates into the annular groove and extrudes one plate surface of the extrusion plate, one end of the corrugated pipe is extruded between the other plate surface of the extrusion plate and the side wall of the annular groove, and the other end of the corrugated pipe is sleeved on the side wall of the outer ring of the collided head; the outer ring of the collided head is in threaded connection with the inner ring of the ferrule, and the other end of the corrugated pipe is arranged between the inner ring of the ferrule and the outer ring of the collided head.
2. A piston-type hydraulic buffer as set forth in claim 1, wherein: the outer ring of the end face of the collided head is provided with a step; the step is two-stage step, attaches the other end of bellows on the step.
3. A piston-type hydraulic buffer as set forth in claim 1, wherein: the other plate surface of the extrusion plate is provided with a ring-shaped second bulge; the outer side wall of the other end of the corrugated pipe is provided with a first annular bulge, and the first bulge is embedded into a gap between every two adjacent bulges.
4. A piston-type hydraulic buffer as set forth in claim 1, wherein: and a plurality of anti-slip strips for increasing friction force are uniformly arranged on the outer side wall of the ferrule.
5. A piston-type hydraulic buffer as set forth in claim 1, wherein: and the end face of the fastening bolt is provided with a finger-imitating handle.
6. A piston-type hydraulic buffer as set forth in claim 1, wherein: and lubricating oil is contained in the corrugated pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022319161.0U CN213298667U (en) | 2020-10-16 | 2020-10-16 | Piston type hydraulic buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022319161.0U CN213298667U (en) | 2020-10-16 | 2020-10-16 | Piston type hydraulic buffer |
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| Publication Number | Publication Date |
|---|---|
| CN213298667U true CN213298667U (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022319161.0U Active CN213298667U (en) | 2020-10-16 | 2020-10-16 | Piston type hydraulic buffer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685395A (en) * | 2021-08-31 | 2021-11-23 | 郑州市同鼎机械设备有限公司 | Piston cylinder telescopic rod sealing dustproof device and piston cylinder using same |
-
2020
- 2020-10-16 CN CN202022319161.0U patent/CN213298667U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685395A (en) * | 2021-08-31 | 2021-11-23 | 郑州市同鼎机械设备有限公司 | Piston cylinder telescopic rod sealing dustproof device and piston cylinder using same |
| CN113685395B (en) * | 2021-08-31 | 2024-04-19 | 郑州市同鼎机械设备有限公司 | Piston cylinder telescopic rod sealing dustproof device and piston cylinder using same |
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