CN208831376U - A kind of hydraulic cylinder - Google Patents
A kind of hydraulic cylinder Download PDFInfo
- Publication number
- CN208831376U CN208831376U CN201821280105.7U CN201821280105U CN208831376U CN 208831376 U CN208831376 U CN 208831376U CN 201821280105 U CN201821280105 U CN 201821280105U CN 208831376 U CN208831376 U CN 208831376U
- Authority
- CN
- China
- Prior art keywords
- plunger
- cylinder body
- piston
- piston bush
- inner cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of hydraulic cylinders in technical field of hydraulic equipment, including outer cylinder body, inner cylinder body is equipped in outer cylinder body, one end of the outside connection piston bush of outer cylinder body one end, the other end of piston bush is connected with piston, it is connected with plunger bushing between the other end of outer cylinder body and the outside of inner cylinder body one end far from piston bush, the plunger reciprocally to move along a straight line is sealedly connected in inner cylinder body, the plunger rides stretched out outside inner cylinder body are arranged on plunger bushing；Oil pocket is formed on the outside of inner cylinder body, between outer cylinder body inside, piston bush one end and plunger bushing, plunger cavity is formed between inner cylinder body inside, piston bush and plunger, forms plunger shaft between the inside and piston of the piston bush other end；The utility model structure is simple, saves space.
Description
Technical field
The utility model belongs to technical field of hydraulic equipment, in particular to a kind of hydraulic cylinder.
Background technique
Component of the hydraulic cylinder as control linear reciprocating motion, it is typical in life or industry.In the prior art, liquid
Cylinder pressure includes cylinder body and piston, and a hydraulic cylinder need to be equipped with special hydraulic system to control the linear reciprocating motion of piston,
Structure is complicated, occupied space.
Utility model content
For the defects in the prior art, the purpose of the utility model is to overcome above-mentioned deficiencies in the prior art
Place solves the technical issues of structure is complicated in the prior art, provides a kind of hydraulic cylinder, and the utility model structure is simple, saves empty
Between.
Purpose of the utility model is realized as follows: a kind of hydraulic cylinder, including outer cylinder body, the outer cylinder body are interior equipped with interior
Cylinder body, one end of the outside connection piston bush of described outer cylinder body one end, the other end of the piston bush are connected with piston, outer cylinder body
The other end and far from piston bush inner cylinder body one end outside between be connected with plunger bushing, being sealedly connected in inner cylinder body can be past
The plunger of linear motion, the plunger rides stretched out outside inner cylinder body are arranged on plunger bushing；On the outside of the inner cylinder body, in outer cylinder body
Oil pocket is formed between side, piston bush one end and plunger bushing, forms plunger cavity between the inner cylinder body inside, piston bush and plunger,
Plunger shaft is formed between the inside and piston of the piston bush other end.
In the utility model, inner cylinder body is equivalent to fuel tank, and oil pocket is equivalent to the cavity of fuel tank, the utility model by fuel tank and
Hydraulic cylinder is integrated in one, and structure is simple, saves space.
It is described unidirectional equipped with check valve one and check valve two in the piston bush in order to further realize the flexible of plunger
The oil inlet of valve one is connected to oil pocket, and the oil outlet of check valve one is connected to plunger shaft；The oil inlet of the check valve two and work
Chamber connection is filled in, the oil outlet of check valve two is connected to plunger cavity；It has been slidably connected unloading sleeve on the piston bush, has put in work
Unloading sleeve one end in plug sleeve is connected with connecting spring, and the other end of the connecting spring is connect with piston bush, the unloading sleeve
On be provided with intercommunicating pore, when pressing unloading sleeve is mobile toward the direction of piston bush, oil pocket connects through the oil inlet of intercommunicating pore and check valve two
It is logical.
In order to further increase the leakproofness that plunger is connect with plunger bushing, one end of the plunger in the plunger cavity is put in
It is provided at least one seal groove one on circumferencial direction, is equipped with sealing ring one, the sealed ring one of plunger in the seal groove one
It is connect with inner cylinder body.
In order to further increase the leakproofness that piston is connect with piston bush, be provided on the circumferencial direction of described piston one end to
A few seal groove two, the seal groove two is interior to be equipped with sealing ring two, connect on the inside of the sealed ring two of piston and piston bush.
In order to facilitate the connection of the utility model and external device (ED), the other end of the other end of the piston and the plunger
Have the convenient input hole and delivery outlet connecting with external device (ED).
Detailed description of the invention
Fig. 1 is the main view of hydraulic cylinder in the utility model.
Fig. 2 is the B-B direction view in Fig. 1.
Wherein, 101 plunger, 102 plunger bushings, 103 outer cylinder bodies, 104 piston bush, 105 inner cylinder bodies, 106 oil pockets, 107 connections
Hole, 108 unloading sleeves, 109 lower thread compounds are stifled, 110 interface channels two, 111 pistons, 112 plunger shafts, 113 interface channels one, and 114
Check valve one, 115 plunger cavities, 116 input holes, 117 delivery outlets, 118 check valves two, 119 connecting springs, thread compound is stifled on 120.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.
A kind of hydraulic cylinder as depicted in figs. 1 and 2, including outer cylinder body 103, outer cylinder body 103 is interior to be equipped with inner cylinder body 105, outside
One end of the outside connection piston bush 104 of 103 one end of cylinder body, the other end of piston bush 104 are connected with piston 111, outer cylinder body 103
The other end and 105 one end of inner cylinder body far from piston bush 104 outside between be connected with plunger bushing 102, it is close in inner cylinder body 105
Envelope is connected with the plunger 101 reciprocally to move along a straight line, and the support of plunger 101 stretched out outside inner cylinder body 105 is arranged in plunger bushing 102
On；Oil pocket 106, inner cylinder body are formed between 105 outside of inner cylinder body, 103 inside of outer cylinder body, 104 one end of piston bush and plunger bushing 102
105 insides form plunger cavity 115 between piston bush 104 and plunger 101, the inside of 104 other end of piston bush and piston 111 it
Between formed plunger shaft 112.
In order to further realize the flexible of plunger 101, piston bush 104 is interior to be equipped with check valve 1 and check valve 2 118,
The oil inlet of check valve 1 is connected to oil pocket 106, and the oil outlet of check valve 1 is connected to plunger shaft 112；Check valve two
118 oil inlet is connected to plunger shaft 112, and the oil outlet of check valve 2 118 is connected to plunger cavity 115；It can be slided on piston bush 104
It is connected with unloading sleeve 108 dynamicly, 108 one end of unloading sleeve put in piston bush 104 is connected with connecting spring 119, connecting spring
119 other end is connect with piston bush 104, and intercommunicating pore 107 is provided on unloading sleeve 108, presses unloading sleeve 108 toward piston bush 104
Direction it is mobile when, oil pocket 106 is connected to through intercommunicating pore 107 with the oil inlet of check valve 2 118；The oil outlet of check valve 1
Interface channel 1 between plunger shaft 212 is sealed in piston bush 104 through upper thread compound stifled 120, check valve 2 118
Interface channel 2 110 between oil inlet and intercommunicating pore 107 is sealed in piston bush 104 through lower thread compound stifled 109.
In order to further increase the leakproofness that plunger 101 is connect with plunger bushing 102, the plunger 101 in plunger cavity 115 is put in
One end circumferencial direction on be spaced apart there are two seal groove one, sealing ring one, the sealed ring of plunger 101 are equipped in seal groove one
One connect with inner cylinder body 105.
In order to further increase the leakproofness that piston 111 is connect with piston bush 104, on the circumferencial direction of 111 one end of piston
It is spaced apart there are two seal groove two, seal groove two is interior to be equipped with sealing ring two, the sealed ring two of piston 111 and 104 inside of piston bush
Connection.
In order to facilitate the connection of the utility model and external device (ED), the other end of piston 111 and the other end point of plunger 101
It is not provided with the convenient input hole 116 and delivery outlet 117 connecting with external device (ED).
In the utility model, in the utility model, inner cylinder body 105 is equivalent to fuel tank, and oil pocket 106 is equivalent to the chamber of fuel tank
Body；When work, when external equipment pushes piston rod constantly to put in plunger shaft 112, the oil liquid pressure in plunger shaft 112 is greater than
After oil pressure in plunger cavity 115, check valve 2 118 is opened, and the oil liquid with pressure enters plunger cavity 115 from plunger shaft 112,
Pressure effect is lower to push plunger 101 constantly to stretch out；When plunger 101 being needed to retract, hydraulic cylinder pressure relief is given, is specifically to press and unload
Lotus set 108, moves unloading sleeve 108 in piston bush 104, when intercommunicating pore 107 and plunger cavity 115 and check valve 2 118 into
When hydraulic fluid port is connected to, the oil liquid in plunger cavity 115 successively passes through the oil inlet of check valve 2 118 and intercommunicating pore 107 enters oil pocket 106
Interior, to realize the pressure release of plunger cavity 115, plunger 101 is constantly retracted, and after plunger 101 is retracted to the position of needs, unclamps off-load
Set 108, unloading sleeve 108 return, interface channel 2 110 under the action of connecting spring 119 are not connected to oil pocket 106, stop solution
The pressure release of cylinder pressure；The utility model is simple by hydraulic cylinder and the hydraulic system structure that is integrated in one, and saves space.
The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed by the utility model, this
For the technical staff in field according to disclosed technology contents, not needing creative labor can be special to some of which technology
Sign makes some replacements and deformation, these replacements and deformation are in scope of protection of the utility model.
Claims (5)
1. a kind of hydraulic cylinder, which is characterized in that including outer cylinder body, inner cylinder body, described outer cylinder body one end are equipped in the outer cylinder body
Outside connection piston bush one end, the other end of the piston bush is connected with piston, the other end of outer cylinder body and far from piston
It is connected with plunger bushing between the outside of inner cylinder body one end of set, the plunger reciprocally to move along a straight line is sealedly connected in inner cylinder body,
The plunger rides stretched out outside inner cylinder body are arranged on plunger bushing；The inner cylinder body outside, outer cylinder body inside, piston bush one end and column
Oil pocket is formed between plug sleeve, forms plunger cavity between the inner cylinder body inside, piston bush and plunger, the piston bush other end
Plunger shaft is formed between inside and piston.
2. a kind of hydraulic cylinder according to claim 1, which is characterized in that equipped with check valve one and unidirectionally in the piston bush
The oil inlet of valve two, the check valve one is connected to oil pocket, and the oil outlet of check valve one is connected to plunger shaft；The check valve two
Oil inlet be connected to plunger shaft, the oil outlet of check valve two is connected to plunger cavity；It has been slidably connected on the piston bush
Unloading sleeve, the unloading sleeve one end put in piston bush are connected with connecting spring, and the other end and piston bush of the connecting spring connect
It connects, intercommunicating pore is provided on the unloading sleeve, when pressing unloading sleeve is mobile toward the direction of piston bush, oil pocket is through intercommunicating pore and check valve
Two oil inlet connection.
3. a kind of hydraulic cylinder according to claim 1 or 2, which is characterized in that put in one of the plunger in the plunger cavity
It is provided at least one seal groove one on the circumferencial direction at end, is equipped with sealing ring one in the seal groove one, the plunger is sealed
Ring one is connect with inner cylinder body.
4. a kind of hydraulic cylinder according to claim 1 or 2, which is characterized in that opened on the circumferencial direction of described piston one end
There is at least one seal groove two, sealing ring two, the sealed ring two of piston and piston bush inside are equipped in the seal groove two
Connection.
5. a kind of hydraulic cylinder according to claim 1 or 2, which is characterized in that the other end of the piston and the plunger
The other end have the convenient input hole and delivery outlet connecting with external device (ED).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821280105.7U CN208831376U (en) | 2018-08-09 | 2018-08-09 | A kind of hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821280105.7U CN208831376U (en) | 2018-08-09 | 2018-08-09 | A kind of hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208831376U true CN208831376U (en) | 2019-05-07 |
Family
ID=66308759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821280105.7U Expired - Fee Related CN208831376U (en) | 2018-08-09 | 2018-08-09 | A kind of hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208831376U (en) |
-
2018
- 2018-08-09 CN CN201821280105.7U patent/CN208831376U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190507 Termination date: 20190809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |