CN205101314U - Automatic hydro -cylinder that contracts returns - Google Patents

Automatic hydro -cylinder that contracts returns Download PDF

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Publication number
CN205101314U
CN205101314U CN201520864005.9U CN201520864005U CN205101314U CN 205101314 U CN205101314 U CN 205101314U CN 201520864005 U CN201520864005 U CN 201520864005U CN 205101314 U CN205101314 U CN 205101314U
Authority
CN
China
Prior art keywords
cylinder
piston rod
spring
base
seat
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
Application number
CN201520864005.9U
Other languages
Chinese (zh)
Inventor
蔡剑峰
方海青
丁升
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGZHOU HYDRAULIC EQUIPMENT FACTORY Co Ltd
Original Assignee
CHANGZHOU HYDRAULIC EQUIPMENT FACTORY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHANGZHOU HYDRAULIC EQUIPMENT FACTORY Co Ltd filed Critical CHANGZHOU HYDRAULIC EQUIPMENT FACTORY Co Ltd
Priority to CN201520864005.9U priority Critical patent/CN205101314U/en
Application granted granted Critical
Publication of CN205101314U publication Critical patent/CN205101314U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to an automatic hydro -cylinder that contracts returns, including cylinder body, piston rod, connect cylinder end and cylinder bottom at the cylinder body both ends respectively, be equipped with on the cylinder bottom with the hydraulic fluid port of the inside intercommunication of cylinder body, still include cylinder end connecting seat and cylinder bottom connecting seat, the cylinder bottom connecting seat sets up in the cylinder bottom, piston rod one end is located the cylinder body, the other end passes the cylinder end to be connected with the cylinder end connecting seat outside stretching out the cylinder body, the piston rod division has the central through hole, is equipped with the spring in the central through hole, the both ends of spring are fixed respectively on cylinder end connecting seat and cylinder bottom connecting seat, the utility model discloses set up the spring in the central through hole of piston rod, the one end of spring is fixed, and the other end can move along with the piston rod, and when the piston rod stretched out outward to the body of rod, the spring was elongated production elasticity, and the piston rod contracts in spring force's effect next time, need not lean on dead weight or oil pressure time to contract, has enlarged the application range of hydro -cylinder.

Description

Automatic retracted oil cylinder
Technical field
The utility model relates to oil cylinder technical field, especially a kind of automatic retracted oil cylinder.
Background technique
One-way cylinder refers to that the motion oil pressure in one of them direction realizes, and by external force such as deadweights when returning, there is oil in two-way cylinder two chambeies, and the action of both direction all will realize by oil pressure.Two chambeies of one-way cylinder only have one end to have oil, and the other end then contacts with air, and retraction only bounces back by the deadweight of piston rod in vertically arranged situation, and the use of oil cylinder is restricted.
Model utility content
The technical problems to be solved in the utility model is: piston rod can only be leaned on to conduct oneself with dignity or the problem of oil pressure retraction to solve existing oil cylinder, provide a kind of also can the oil cylinder of automatic retracted by piston rod deadweight and oil pressure.
The utility model solves the technological scheme that its technical problem adopts: a kind of automatic retracted oil cylinder, comprise cylinder body, piston rod, be connected to cylinder head and the cylinder bottom at cylinder body two ends, described cylinder bottom is provided with the hydraulic fluid port be communicated with cylinder interior, also comprise cylinder head connecting base and cylinder bottom connecting base, described cylinder bottom connecting base is arranged in cylinder bottom, described piston rod one end is positioned at cylinder body, the other end stretches out outside cylinder body through cylinder head and is connected with cylinder head connecting base, described piston rod has central through bore, spring is provided with in described central through bore, the two ends of spring are separately fixed on cylinder head connecting base and cylinder bottom connecting base.
Hydraulic oil enters the rodless cavity of cylinder body from the hydraulic fluid port of cylinder bottom, promote piston rod to move to cylinder head one end, because the two ends of spring are fixed with cylinder bottom connecting base and cylinder head connecting base respectively, cylinder bottom connecting base is fixed, cylinder head connecting base moves, therefore spring is stretched, and produce elastic force, piston rod is automatic retracted under the effect of spring force.
As preferably, described cylinder head is threaded with cylinder body, and described cylinder bottom welds with cylinder body.
Further, the elastic force of spring makes cylinder bottom connecting base be stuck in cylinder bottom, and the outer end of described cylinder bottom is provided with and cap, and cylinder bottom connecting base is fixed, and when avoiding spring retraction, cylinder bottom connecting base moves.
The beneficial effects of the utility model are, the utility model arranges spring in the central through bore of piston rod, one end of spring is fixed, the other end can move with piston rod, when piston rod stretches out outside the body of rod, spring is elongated generation elastic force, and piston rod bounces back under the effect of spring force, do not need, by deadweight or oil pressure retraction, to expand the using scope of oil cylinder.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
In figure: 1. cylinder head connecting base, 2. cylinder head, 3. cylinder body, 4. spring, 5. piston rod, 6. hydraulic fluid port, 7. cylinder bottom, 8. cylinder bottom connecting base, 9. and cap.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
A kind of automatic retracted oil cylinder as shown in Figure 1, comprise cylinder body 3, piston rod 5, be connected to cylinder head 2 and the cylinder bottom 7 at cylinder body 3 two ends, cylinder head 2 is threaded with cylinder body 3, cylinder bottom 7 welds with cylinder body 3, cylinder bottom 7 is provided with the hydraulic fluid port 6 be communicated with cylinder body 3 inside, also comprise cylinder head connecting base 1 and cylinder bottom connecting base 8, cylinder bottom connecting base 8 is arranged in cylinder bottom 7, piston rod 5 one end is positioned at cylinder body 3, the other end stretches out outside cylinder body 3 through cylinder head 2 and is connected with cylinder head connecting base 1, piston rod 5 has central through bore, spring 4 is provided with in central through bore, the two ends of spring 4 are separately fixed on cylinder head connecting base 1 and cylinder bottom connecting base 8, the elastic force of spring 4 makes cylinder bottom connecting base 8 be stuck in cylinder bottom 7 li, the outer end of cylinder bottom 7 is provided with and cap 9, cylinder bottom connecting base 8 is fixed, when avoiding spring 4 to bounce back, cylinder bottom connecting base 8 moves.
Hydraulic oil enters the rodless cavity of cylinder body 3 from the hydraulic fluid port 6 of cylinder bottom 7, promote piston rod 5 to move to cylinder head 2 one end, because the two ends of spring 4 are fixed with cylinder bottom connecting base 8 and cylinder head connecting base 1 respectively, cylinder bottom connecting base 8 is fixed, and cylinder head connecting base 1 moves, and therefore spring 4 is stretched, produce elastic force, piston rod 5 automatic retracted under the effect of spring 4 elastic force, does not need, by deadweight or oil pressure retraction, to expand the using scope of oil cylinder.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.

Claims (3)

1. an automatic retracted oil cylinder, comprise cylinder body (3), piston rod (5), be connected to cylinder head (2) and the cylinder bottom (7) at cylinder body (3) two ends, described cylinder bottom (7) is provided with the hydraulic fluid port (6) be communicated with cylinder body (3) inside, it is characterized in that: also comprise cylinder head connecting base (1) and cylinder bottom connecting base (8), described cylinder bottom connecting base (8) is arranged in cylinder bottom (7), described piston rod (5) one end is positioned at cylinder body (3), the other end stretches out cylinder body (3) through cylinder head (2) and is connected with cylinder head connecting base (1) outward, described piston rod (5) has central through bore, spring (4) is provided with in described central through bore, the two ends of spring (4) are separately fixed on cylinder head connecting base (1) and cylinder bottom connecting base (8).
2. automatic retracted oil cylinder as claimed in claim 1, it is characterized in that: described cylinder head (2) is threaded with cylinder body (3), described cylinder bottom (7) welds with cylinder body (3).
3. automatic retracted oil cylinder as claimed in claim 1, is characterized in that: the outer end of described cylinder bottom (7) is provided with and cap (9).
CN201520864005.9U 2015-11-02 2015-11-02 Automatic hydro -cylinder that contracts returns Expired - Fee Related CN205101314U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520864005.9U CN205101314U (en) 2015-11-02 2015-11-02 Automatic hydro -cylinder that contracts returns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520864005.9U CN205101314U (en) 2015-11-02 2015-11-02 Automatic hydro -cylinder that contracts returns

Publications (1)

Publication Number Publication Date
CN205101314U true CN205101314U (en) 2016-03-23

Family

ID=55517096

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520864005.9U Expired - Fee Related CN205101314U (en) 2015-11-02 2015-11-02 Automatic hydro -cylinder that contracts returns

Country Status (1)

Country Link
CN (1) CN205101314U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105179369A (en) * 2015-11-02 2015-12-23 常州液压成套设备厂有限公司 Automatic retraction oil cylinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105179369A (en) * 2015-11-02 2015-12-23 常州液压成套设备厂有限公司 Automatic retraction oil cylinder

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160323

Termination date: 20181102

CF01 Termination of patent right due to non-payment of annual fee