CN202718953U - Collision-resistant hydraulic oil cylinder - Google Patents

Collision-resistant hydraulic oil cylinder Download PDF

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Publication number
CN202718953U
CN202718953U CN2012202988549U CN201220298854U CN202718953U CN 202718953 U CN202718953 U CN 202718953U CN 2012202988549 U CN2012202988549 U CN 2012202988549U CN 201220298854 U CN201220298854 U CN 201220298854U CN 202718953 U CN202718953 U CN 202718953U
Authority
CN
China
Prior art keywords
piston
cylinder barrel
cylinder
piston rod
hydraulic jack
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
CN2012202988549U
Other languages
Chinese (zh)
Inventor
刘达兴
吴芹兰
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.)
FUJIAN LONGYAN SHENGTONG HYDRAULIC Co Ltd
Original Assignee
FUJIAN LONGYAN SHENGTONG HYDRAULIC 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 FUJIAN LONGYAN SHENGTONG HYDRAULIC Co Ltd filed Critical FUJIAN LONGYAN SHENGTONG HYDRAULIC Co Ltd
Priority to CN2012202988549U priority Critical patent/CN202718953U/en
Application granted granted Critical
Publication of CN202718953U publication Critical patent/CN202718953U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a collision-resistant hydraulic oil cylinder comprising a cylinder barrel, a piston, a piston rod and a cylinder cover, wherein the piston is contained in the cylinder barrel and can move back and forth in the cylinder barrel, one end of the piston rod is fixedly connected with the piston, and the other end of the piston rod extends out of the cylinder barrel. The cylinder cover is arranged at one end of the cylinder barrel, and the bottom of the cylinder barrel is provided with a rubber pad arranged relative to the piston. A limiting gasket is arranged on the piston rod outside the cylinder barrel, and abuts against the cylinder cover. The rubber pad is arranged at the bottom of the cylinder barrel and the limiting gasket is arranged on the piston rod, so the collision-resistant hydraulic oil cylinder can prevent the piston from directly colliding with the bottom of the cylinder barrel, prolongs service life of the hydraulic oil cylinder, generates little vibration, and is stable to operate.

Description

A kind of crashproof hydraulic jack
[technical field]
The utility model relates to a kind of hydraulic jack, is specifically related to a kind of crashproof hydraulic jack, belongs to the hydraulic equipment technical field.
[background technique]
Hydraulic jack is very widely industrial automation equipment of a kind of application, and it mainly is comprised of several parts such as cylinder barrel, piston and piston rods, makes piston to-and-fro motion in cylinder barrel by the piston rod pushing piston.
The cylinder barrel of the hydraulic jack of prior art and piston adopt metal to make usually, will strong bump occur with cylinder barrel when piston runs to the bottom of cylinder barrel, will greatly shorten the working life of hydraulic jack like this.
Therefore, for avoiding above-mentioned technical problem, necessaryly provide a kind of structure improved crashproof hydraulic jack that has, to overcome described defective of the prior art.
[model utility content]
For addressing the above problem, the purpose of this utility model is to provide a kind of crashproof hydraulic jack that can effectively avoid piston impact cylinder barrel bottom.
For achieving the above object, the technological scheme that the utility model is taked is: a kind of crashproof hydraulic jack, and it comprises cylinder barrel, piston, piston rod and cylinder cap; Wherein, described piston is contained in the cylinder barrel, and can to-and-fro motion in cylinder barrel; Described piston rod one end and piston Joint, the other end extends outside the cylinder barrel; Described cylinder cap is arranged at an end of cylinder barrel; Be provided with a rubber pad in the bottom of described cylinder barrel, this rubber pad and piston are oppositely arranged; Be positioned at the outer piston rod of cylinder barrel and be provided with a limiting gasket, this limiting gasket can be connected on the cylinder cap.
Crashproof hydraulic jack of the present utility model further is set to: the end in described piston rod is provided with a connecting head.
Crashproof hydraulic jack of the present utility model further is set to: be provided with a ceramic layer in the surface of described piston, and be provided with seal ring between cylinder barrel and piston.
Compared with prior art, the utlity model has following beneficial effect: crashproof hydraulic jack of the present utility model is by arranging rubber pad and at piston rod limiting gasket is set in the cylinder barrel bottom, thereby can avoid piston directly and bottom the cylinder barrel to clash into, prolonged the working life of hydraulic jack, and the vibration that produces is less, operates steadily.
[description of drawings]
Fig. 1 is the structural representation of crashproof hydraulic jack of the present utility model.
[embodiment]
See also shown in the Figure of description 1, the utility model is a kind of crashproof hydraulic jack, and it is formed by a few part assemblings such as cylinder barrel 1, piston 2, piston rod 3 and cylinder cap 4.
Wherein, wherein, described cylinder barrel 1 adopts stainless steel to make.Described cylinder cap 4 is arranged at an end of cylinder barrel 1.Be provided with a rubber pad 5 in the bottom of described cylinder barrel 1, this rubber pad 5 and piston 2 are oppositely arranged.By this rubber pad 5 is set, thereby can avoid piston 2 directly to impact the bottom of cylinder barrel 1.
Described piston 2 is contained in the cylinder barrel 1, and can be in cylinder barrel 1 interior to-and-fro motion.Be provided with a ceramic layer 21 in the surface of described piston 2, thereby increased the wear resistance of this piston 2.Between described cylinder barrel 1 and piston 2, be provided with seal ring 6, thereby increased sealing between the two.
Described piston rod 3 one ends and piston 2 Joints, the other end extends outside the cylinder barrel 1.Be positioned at cylinder barrel 1 outer piston rod 3 and be provided with a limiting gasket 31, this limiting gasket 31 can be connected on the cylinder cap 4, and at this moment, piston rod 3 can not push in the cylinder barrel 1 again, further avoids piston 2 directly to impact the bottom of cylinder barrel 1.Further, the end in described piston rod 3 is provided with a connecting head 32.Can be connected with hydraulic jack driving mechanism (not shown) by this connecting head 32 connects.
Crashproof hydraulic jack of the present utility model is by arranging rubber pad 5 and at piston rod 3 limiting gasket 31 is set in cylinder barrel 1 bottom, thereby can avoid piston 2 direct and cylinder barrel 1 bottom bumps, prolonged the working life of hydraulic jack, and the vibration that produces is less, operates steadily.
Above embodiment only is the preferred embodiment of this creation, not in order to limiting this creation, all in this creation spirit and principle within make any modification, be equal to replacement, improvement etc., all should be included within the protection domain of this creation.

Claims (3)

1. a crashproof hydraulic jack is characterized in that: comprise cylinder barrel, piston, piston rod and cylinder cap; Wherein, described piston is contained in the cylinder barrel, and can to-and-fro motion in cylinder barrel; Described piston rod one end and piston Joint, the other end extends outside the cylinder barrel; Described cylinder cap is arranged at an end of cylinder barrel; Be provided with a rubber pad in the bottom of described cylinder barrel, this rubber pad and piston are oppositely arranged; Be positioned at the outer piston rod of cylinder barrel and be provided with a limiting gasket, this limiting gasket can be connected on the cylinder cap.
2. crashproof hydraulic jack as claimed in claim 1, it is characterized in that: the end in described piston rod is provided with a connecting head.
3. crashproof hydraulic jack as claimed in claim 2 is characterized in that: be provided with a ceramic layer in the surface of described piston, and be provided with seal ring between cylinder barrel and piston.
CN2012202988549U 2012-06-17 2012-06-17 Collision-resistant hydraulic oil cylinder Expired - Fee Related CN202718953U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012202988549U CN202718953U (en) 2012-06-17 2012-06-17 Collision-resistant hydraulic oil cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012202988549U CN202718953U (en) 2012-06-17 2012-06-17 Collision-resistant hydraulic oil cylinder

Publications (1)

Publication Number Publication Date
CN202718953U true CN202718953U (en) 2013-02-06

Family

ID=47620777

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012202988549U Expired - Fee Related CN202718953U (en) 2012-06-17 2012-06-17 Collision-resistant hydraulic oil cylinder

Country Status (1)

Country Link
CN (1) CN202718953U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105626767A (en) * 2016-03-14 2016-06-01 力帆实业(集团)股份有限公司 Damping rubber cushion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105626767A (en) * 2016-03-14 2016-06-01 力帆实业(集团)股份有限公司 Damping rubber cushion

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Legal Events

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

Granted publication date: 20130206

Termination date: 20150617