CN105179369A - Automatic retraction oil cylinder - Google Patents

Automatic retraction oil cylinder Download PDF

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Publication number
CN105179369A
CN105179369A CN201510731371.1A CN201510731371A CN105179369A CN 105179369 A CN105179369 A CN 105179369A CN 201510731371 A CN201510731371 A CN 201510731371A CN 105179369 A CN105179369 A CN 105179369A
Authority
CN
China
Prior art keywords
cylinder
base
piston rod
spring
oil
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.)
Pending
Application number
CN201510731371.1A
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 CN201510731371.1A priority Critical patent/CN105179369A/en
Publication of CN105179369A publication Critical patent/CN105179369A/en
Pending legal-status Critical Current

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Abstract

The invention relates to an automatic retraction oil cylinder. The automatic retraction oil cylinder comprises a cylinder body, a piston rod, a cylinder head and a cylinder base respectively connected to two ends of the cylinder. The cylinder base is provided with an oil port in communication with the interior of the cylinder body. The automatic retraction oil cylinder further comprises a cylinder head connecting seat and a cylinder base connecting seat. The cylinder base connecting seat is disposed in the cylinder base, one end of the piston rod is arranged in the cylinder body, the other end penetrates the cylinder head and comes out of the cylinder body to be connected to the cylinder head connecting seat, the piston rod has a central through hole, a spring is disposed in the central through hole, and two ends of the spring are respectively fixed to the cylinder head connecting seat and the cylinder base connecting seat. According to the automatic retraction oil cylinder, the spring is disposed in the central through hole, one end of the spring is fixed, the other end can move along with the piston rod, the spring is extended and generates an elastic force when the piston rod stretches out of the cylinder body, so the piston rod retracts under the function of the elastic force of spring, retraction caused by deadweight or oil pressure is needless, the scope of application of the oil cylinder is enlarged.

Description

Automatic retracted oil cylinder
Technical field
The present invention 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.
Summary of the invention
The technical problem to be solved in the present invention 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 technical solution adopted for the present invention to solve the technical problems is: 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 invention has the beneficial effects as follows, the present invention 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 present invention is further described.
Fig. 1 is structural representation of the present invention.
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
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
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 invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention 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).
CN201510731371.1A 2015-11-02 2015-11-02 Automatic retraction oil cylinder Pending CN105179369A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510731371.1A CN105179369A (en) 2015-11-02 2015-11-02 Automatic retraction oil cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510731371.1A CN105179369A (en) 2015-11-02 2015-11-02 Automatic retraction oil cylinder

Publications (1)

Publication Number Publication Date
CN105179369A true CN105179369A (en) 2015-12-23

Family

ID=54901698

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510731371.1A Pending CN105179369A (en) 2015-11-02 2015-11-02 Automatic retraction oil cylinder

Country Status (1)

Country Link
CN (1) CN105179369A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU540063A1 (en) * 1975-04-28 1976-12-25 Предприятие П/Я А-1701 One-way Hydraulic Cylinder
DE2926258B1 (en) * 1979-06-29 1980-12-04 Festo Maschf Stoll G Single acting actuator
CN102889267A (en) * 2012-11-16 2013-01-23 江阴市洪腾机械有限公司 Self-restoration single-action type hydraulic cylinder
CN103452944A (en) * 2013-08-23 2013-12-18 浙江亿太诺气动科技有限公司 Vehicle-carried single-acting cylinder
CN204003761U (en) * 2014-08-22 2014-12-10 宁波陈氏鑫光气动有限公司 A kind of gas brake cylinder
CN205101314U (en) * 2015-11-02 2016-03-23 常州液压成套设备厂有限公司 Automatic hydro -cylinder that contracts returns

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU540063A1 (en) * 1975-04-28 1976-12-25 Предприятие П/Я А-1701 One-way Hydraulic Cylinder
DE2926258B1 (en) * 1979-06-29 1980-12-04 Festo Maschf Stoll G Single acting actuator
CN102889267A (en) * 2012-11-16 2013-01-23 江阴市洪腾机械有限公司 Self-restoration single-action type hydraulic cylinder
CN103452944A (en) * 2013-08-23 2013-12-18 浙江亿太诺气动科技有限公司 Vehicle-carried single-acting cylinder
CN204003761U (en) * 2014-08-22 2014-12-10 宁波陈氏鑫光气动有限公司 A kind of gas brake cylinder
CN205101314U (en) * 2015-11-02 2016-03-23 常州液压成套设备厂有限公司 Automatic hydro -cylinder that contracts returns

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C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20151223

WD01 Invention patent application deemed withdrawn after publication