CN202118177U - Low-pressure controllable gas spring - Google Patents

Low-pressure controllable gas spring Download PDF

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Publication number
CN202118177U
CN202118177U CN2011201678470U CN201120167847U CN202118177U CN 202118177 U CN202118177 U CN 202118177U CN 2011201678470 U CN2011201678470 U CN 2011201678470U CN 201120167847 U CN201120167847 U CN 201120167847U CN 202118177 U CN202118177 U CN 202118177U
Authority
CN
China
Prior art keywords
piston
valve needle
needle
piston rod
boss
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 - Lifetime
Application number
CN2011201678470U
Other languages
Chinese (zh)
Inventor
陈斌
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.)
JIANGDU MINGRUI GAS SPRING MANUFACTURING CO LTD
Original Assignee
JIANGDU MINGRUI GAS SPRING MANUFACTURING 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 JIANGDU MINGRUI GAS SPRING MANUFACTURING CO LTD filed Critical JIANGDU MINGRUI GAS SPRING MANUFACTURING CO LTD
Priority to CN2011201678470U priority Critical patent/CN202118177U/en
Application granted granted Critical
Publication of CN202118177U publication Critical patent/CN202118177U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A low-pressure controllable gas spring relates to the field of springs, dampers and shock absorption devices and particularly relates to a structure of a gas spring. The low-pressure controllable gas spring comprises a cylinder barrel, a piston, a piston rod and a valve needle. The piston is disposed in the cylinder barrel, the piston rod is penetratingly arranged in the cylinder barrel, the rear end of the piston rod is fixedly connected with the piston, the valve needle is penetratingly arranged in the piston rod and the piston, the rear end of the piston is provided with a necking boss in an integrated manner, the rear end of the valve needle is penetratingly disposed in the necking boss, a press cap is arranged on the rear of the piston, a through hole is radially arranged on the press cap, one end of the press cap is an opening end, the other end of the press cap is a blind end, the opening end of the press cap is connected with the piston, a groove is radially disposed on the outside of the valve needle in the necking boss, a shaft collar and a mechanical spring are sleeved on the outside of the valve needle, the shaft collar is clamped in the groove of the valve needle, and the mechanical spring is arranged between the shaft collar and the blind end of the press cap. The mechanical spring is added to the tail end of the valve needle so as to assist in restoration of the valve needle and inject sufficient oil into the valve needle to realize rigid locking. The low-pressure controllable gas spring can realize relatively rigid locking.

Description

Low pressure controllable type air spring
Technical field
The utility model relates to the field of a kind of spring, vibration damper, damping device, particularly the structure of air spring.
Background technique
Air spring is a kind ofly can play support, buffering, braking, highly regulate and the accessory of function such as angle adjustment, is widely used in fields such as medical equipment, automobile, furniture, Weaving device, machine-building.Principle is in airtight cylinder barrel, to charge into inert gas or gas mixture; Make the pressure in the cavity be higher than atmospheric several times or tens times, thereby the pressure difference that the cross-section area that utilizes piston rod produces less than the cross-section area of piston realize the motion of piston rod.At present, controllable type air spring minimum stretch power is lower than 50N, if the flexibility of making, its latching force is very poor; If it is very big to make its resistance of rigidity.General needle can't be from horizontal reset when being lower than 50N.
Summary of the invention
The purpose of the utility model is in order to overcome the deficiency of existing technology, and needle can be from the low pressure controllable type air spring of horizontal reset when a kind of low pressure was provided.
The purpose of the utility model is achieved in that low pressure controllable type air spring, comprises cylinder barrel, piston, piston rod and needle, and piston is arranged in the cylinder barrel; Piston rod is set in the cylinder barrel, and the rear end of piston rod is fixedly connected with piston, and needle is set in piston rod and the piston; The rear end disjunctor of said piston is provided with the closing in boss, and the rear end of said needle is set in the closing in boss, and the rear side of piston is provided with pressure cap; Through hole radially is set on the pressure cap; One end of pressure cap is an opening end, and the other end of pressure cap is a cecum, and the opening end of pressure cap and piston disjunctor are provided with; Needle outer radial in the said closing in boss is provided with groove, and needle is nested with axle bumper and mechanical spring outward, and axle bumper is stuck in the groove of needle, and mechanical spring is provided with between the cecum of axle bumper and pressure cap.
The utility model can't reset in order to overcome low pressure controllable type air spring needle, does not hold at needle to add a mechanical spring, helps it to reset, and its oil of annotating q.s is made the relative rigidity locking.Can realize the relative rigidity locking of low pressure controllable type air spring.
The needle of the utility model also is nested with packing ring outward, and packing ring is arranged on the front side of axle bumper, and packing ring is arranged between the piston and pressure cap in the closing in boss.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is an I portion enlarged view among Fig. 1.
Among the figure, 1 piston rod, 2 needles, 3 cylinder barrels, 4 pistons, 5 axle bumpers, 6 through holes, 7 mechanical springs, 8 pressure caps, 9 closing in boss, 11 packing rings, 12 grooves.
Embodiment
Like Fig. 1, shown in 2, be low pressure controllable type air spring, comprise cylinder barrel 3, piston 4, piston rod 1 and needle 2; Piston 4 is arranged in the cylinder barrel 3, and piston rod 1 is set in the cylinder barrel 3, and the rear end of piston rod 1 is fixedly connected with piston 4; Needle 2 is set in piston rod 1 and the piston 4, and the rear end disjunctor of piston 4 is provided with closing in boss 9, and the rear end of needle 2 is set in the closing in boss 9; The rear side of piston 4 is provided with pressure cap 8, and through hole 6 radially is set on the pressure cap 8, and an end of pressure cap 8 is an opening end; The other end of pressure cap 8 is a cecum, and the opening end of pressure cap 8 is through back and the piston 4 disjunctor settings of closing up that press.Needle 2 outer radials in the closing in boss 9 are provided with groove 12; Needle 2 outer packing ring 11, axle bumper 5 and the mechanical springs 7 of being nested with; Packing ring 11 is arranged in the closing in boss 9, and packing ring 11 is arranged between the piston 4 and pressure cap 8 in the closing in boss 9, and axle bumper 5 is arranged on the rear side of packing ring 11; Axle bumper 5 is stuck in the groove 12 of needle 2, and mechanical spring 7 is provided with between the cecum of axle bumper 5 and pressure cap 8.

Claims (2)

1. low pressure controllable type air spring comprises cylinder barrel, piston, piston rod and needle, and piston is arranged in the cylinder barrel; Piston rod is set in the cylinder barrel, and the rear end of piston rod is fixedly connected with piston, and needle is set in piston rod and the piston; It is characterized in that: the rear end disjunctor of said piston is provided with the closing in boss, and the rear end of said needle is set in the closing in boss, and the rear side of piston is provided with pressure cap; Through hole radially is set on the pressure cap; One end of pressure cap is an opening end, and the other end of pressure cap is a cecum, and the opening end of pressure cap and piston disjunctor are provided with; Needle outer radial in the said closing in boss is provided with groove, and needle is nested with axle bumper and mechanical spring outward, and axle bumper is stuck in the groove of needle, and mechanical spring is provided with between the cecum of axle bumper and pressure cap.
2. low pressure controllable type air spring according to claim 1 is characterized in that: said needle also is nested with packing ring outward, and packing ring is arranged on the front side of axle bumper, and packing ring is arranged between the piston and pressure cap in the closing in boss.
CN2011201678470U 2011-05-24 2011-05-24 Low-pressure controllable gas spring Expired - Lifetime CN202118177U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201678470U CN202118177U (en) 2011-05-24 2011-05-24 Low-pressure controllable gas spring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201678470U CN202118177U (en) 2011-05-24 2011-05-24 Low-pressure controllable gas spring

Publications (1)

Publication Number Publication Date
CN202118177U true CN202118177U (en) 2012-01-18

Family

ID=45459244

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201678470U Expired - Lifetime CN202118177U (en) 2011-05-24 2011-05-24 Low-pressure controllable gas spring

Country Status (1)

Country Link
CN (1) CN202118177U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102213288A (en) * 2011-05-24 2011-10-12 扬州市明瑞气弹簧有限公司 Low-pressure controllable gas spring
CN107477133A (en) * 2017-10-18 2017-12-15 河南省汇隆精密设备制造股份有限公司 A kind of single-piston rod hydraulic damper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102213288A (en) * 2011-05-24 2011-10-12 扬州市明瑞气弹簧有限公司 Low-pressure controllable gas spring
CN107477133A (en) * 2017-10-18 2017-12-15 河南省汇隆精密设备制造股份有限公司 A kind of single-piston rod hydraulic damper

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
RGAV Abandon patent right to avoid regrant
AV01 Patent right actively abandoned

Granted publication date: 20120118

Effective date of abandoning: 20130227