CN203796836U - Gas spring - Google Patents
Gas spring Download PDFInfo
- Publication number
- CN203796836U CN203796836U CN201420221955.5U CN201420221955U CN203796836U CN 203796836 U CN203796836 U CN 203796836U CN 201420221955 U CN201420221955 U CN 201420221955U CN 203796836 U CN203796836 U CN 203796836U
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- Prior art keywords
- piston rod
- cylinder body
- piston valve
- needle
- button
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Abstract
The utility model discloses a gas spring and belongs to the field of gas springs. The gas spring comprises a cylinder, a piston rod, a button, a bushing, a guide sleeve, a conical washer, a piston valve, and a rear plug. The rear plug is arranged at the left end of the cylinder. The piston valve is disposed inside the cylinder and divides the cylinder into a left gas chamber and a right gas chamber. The face, in contact with the cylinder, of the piston valve is provided with a seal member. The middle sidewall of the piston valve is provided with an air hole in the vertical direction. The piston rod is in a hollow structure. The button is inserted into a right end opening of the piston rod. The button is in a rod structure. A groove is arranged in the right of the cylinder. The conical washer, the guide sleeve and the bushing are arranged on the right of the groove in order. The gas spring is simple in structure, low in cost and convenient to process; in actual using, the gas spring ensures soft and comfortable lifting and rotating, and buffering effect is evident; the gas spring is widely applicable to the fields, such as swivel chairs, bicycles and bus seats; the requirement of the market for gas spring products is met.
Description
Technical field
The utility model belongs to the technical field of Office furniture accessory, more particularly, relates to a kind of air spring.
Background technique
Air spring (gas spring) is a kind ofly can play support, buffering, braking, highly regulate and the industrial accessory of the function such as angle adjustment.Air spring is mainly used in Office seating, principle is in airtight pressure cylinder, to be filled with inert gas or gas mixture, make pressure in cavity higher than atmospheric several times or tens times, thereby the pressure difference that the cross-section area that utilizes the cross-section area of piston rod to be less than piston produces realize the motion of piston rod.Different from mechanical spring, air spring has the linear elastic curve of being close to.
Chinese Patent Application No. 200910233878.9, open day on April 21st, 2010, denomination of invention: air spring.This application case relates to a kind of air spring, and this invention piston rod is connected with inner tube, and one end of inner tube is provided with button, and described piston rod front end is provided with O-ring seal, and piston rod is provided with rear top cover and bowl-type rubber pad, and the rear end of piston rod is provided with O-ring seal and air hole; In described inner tube, be provided with strut, strut is provided with fastening piece, and strut is provided with enable switch, and enable switch is provided with control valve, and control valve is provided with O-ring seal.This invention simple in structure, but unstable properties in actual use, easily damage, and the machining accuracy simultaneously requiring is higher, and cost can not adapt to the demand in market more greatly.
Model utility content
1. the technical problem that model utility will solve
For the air spring unstable properties existing in prior art, operation adds low, the problem that difficulty of processing is larger of manufacturing efficiency in man-hour, the invention provides a kind of air spring.The utility model project organization advantages of simple, production and processing is easy to assembly, and cost is lower, and product usability is stable, and good sealing effect adapts to market.
2. technological scheme
For achieving the above object, the technological scheme that the utility model provides is:
A kind of air spring, comprise cylinder body, piston rod, also comprise button, lining, guide sleeve, bowl-type rubber pad, piston valve and rear stifled, the described rear stifled left end that is positioned at cylinder body, described piston valve is positioned at cylinder body, cylinder body is divided into two air chambers in left and right, described piston valve and cylinder body surface of contact are provided with Sealing, the middle part sidewall of piston valve is provided with the vent of vertical direction, piston rod inserts in cylinder body from the right side level of cylinder body, and the left end of piston rod stretches in piston valve, needle inserts the left side of piston rod, piston valve moves with piston rod, described piston rod is hollow structure, right output port at piston rod is inserted with button, button is club shaped structure, groove is positioned at the right part of cylinder body, described bowl-type pad, guide sleeve and lining are successively set on groove the right.
As improving further, the material of described lining is polyoxymethylene pom.
As improving further, the material of described button is 20# steel.
As improving further, described piston valve material be nylon PA66.
As improving further, described needle from left to right comprises positioning cap, the first needle body, needle groove and second valve needle body successively, described positioning cap, the first needle body, needle groove and second valve needle body is rotary structure and central axis is located along the same line.
As improving further, the internal diameter of described vent is 1.5mm, and the degree of depth is 3.5mm.
3. beneficial effect
The technological scheme that adopts the utility model to provide, compared with prior art, has following beneficial effect:
(1) a kind of air spring of the present utility model, comprise cylinder body, piston rod, also comprise button, lining, guide sleeve, bowl-type rubber pad, piston valve and rear stifled, the described rear stifled left end that is positioned at cylinder body, described piston valve is positioned at cylinder body, cylinder body is divided into two air chambers in left and right, described piston valve and cylinder body surface of contact are provided with Sealing, the middle part sidewall of piston valve is provided with the vent of vertical direction, piston rod inserts in cylinder body from the right side level of cylinder body, and the left end of piston rod stretches in piston valve, needle inserts the left side of piston rod, piston valve moves with piston rod.The global design of this air spring, in actual applications, lifting rotation is softer comfortable, cushioning effect is obvious, be widely used in swivel chair, by bike with a plurality of fields of passenger vehicle seat, met the requirement of market to air spring product;
(2) a kind of air spring of the present utility model, the material of described lining is polyoxymethylene pom.This kind of material has good mechanical property, as intensity, modulus, wear resistance, toughness, fatigue resistance and creep resistance, also has good electrical insulating property, solvent resistance and workability;
(3) extending means of a kind of air spring of the present utility model, piston valve parts are provided with the vent of vertical direction, the internal diameter of vent is 1.5mm, the degree of depth is 3.5mm, the internal diameter of vent and the degree of depth have determined its impact on air-flow, adopt piston valve of the present utility model, the vent of this project organization can effectively guarantee that air-flow is unimpeded;
(4) air spring of the present utility model, reasonable in design, simple in structure, with low cost, and processing technology is convenient, and resource consumption is little, and multiple material can be reused, and is convenient to promote the use of.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of the utility model needle;
Fig. 3 is the structure for amplifying schematic diagram of the Sealing in embodiment 1.Label declaration in schematic diagram:
1, needle; 101, the first needle body; 102, second valve needle body; 104, needle groove; 103, positioning cap; 2, vent; 3, cylinder body; 4, bowl-type rubber pad; 5, lining; 6, piston rod; 7, button; 8, guide sleeve; 9, groove; 10, piston valve; 11, Sealing; 12, rear stifled; 201, the first projection; 202, the second projection; 301, the 3rd projection; 302, the 4th projection.
Embodiment
Further understand content of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in detail.
Embodiment 1
As shown in Figure 1, a kind of air spring, comprises cylinder body 3, piston rod 6, button 7, lining 5, guide sleeve 8, bowl-type rubber pad 4, piston valve 10 and rear stifled 12, wherein: described rear stifled 12 are positioned at the left end of cylinder body 3, and specification is 22mm * 21mm * 15mm, and material is iron.
Described piston valve 10 is positioned at cylinder body 3, and cylinder body 3 is divided into two air chambers in left and right, and described piston valve 10 is provided with Sealing 11 with cylinder body 3 surface of contact, and the material of Sealing 11 is nitrile butadiene rubber, and cross section is O type, ℃-120 ℃, serviceability temperature-20.Adopt nitrile butadiene rubber oil resistance fabulous, wear resistance is higher, and heat resistance is better, and bonding force is strong.Wherein, in conjunction with Fig. 3, the seal is a kind of sealing gasket, sealing gasket comprises sealing gasket body, and sealing gasket body is circular ring, the parallel two circle annular projections that are provided with on the outer circumferential face of sealing gasket body, i.e. the first projection 201 and the second projection 202, on the right surface of sealing gasket body, be provided with annular groove, the parallel two circle annular projections that are provided with, i.e. the 3rd projection 301 and the 4th projection 302 on the inner peripheral surface of sealing gasket body.Described annular groove is circular, and the cross section of annular groove is isosceles trapezoid, the lower base angle of this isosceles trapezoid is 60 °, and the global shape design of the trapezium structure design fitted seal pad of such annular groove is comparatively stablized and processing facility the shape of sealing gasket.
The height of the annular projection on the outer circumferential face of described sealing gasket body is 1.7mm.The thickness of described sealing gasket body is 4.5mm.Described sealing gasket body has two-layer, and it is soft silica gel at the middle and upper levels, and thickness is 2mm, and lower floor is rubber, and thickness is 2.5mm, the upper and lower two-layer integral body that connects into, and during use, bi-material combination seal performance is better.The surface roughness of sealing gasket is 0.012um, and degree of finish is good; Planeness is 0.002mm, no marking (naked eyes can not be distinguished) almost, and planeness is splendid.Sealing gasket project organization in the present embodiment, claimant takes into account cost consideration, select suitable roughness, planeness parameter simultaneously, after making sealing gasket coordinate other each component of air spring to install and use, play extraordinary seal action, the sealing gasket on market can not possess so many advantage.
The middle part sidewall of piston valve 10 is provided with the vent 2 of vertical direction, piston rod 6 inserts in cylinder body 3 from the right side level of cylinder body 3, and the left end of piston rod 6 stretches in piston valve 10, the left side that needle 1 inserts piston rod 6, piston valve 10 moves with piston rod 6, described piston rod 6 is hollow structure, right output port at piston rod 6 is inserted with button 7, button 7 is club shaped structure, press button 7 and can touch the needle 1 in piston valve 10, needle 1 separates two of the left and right air chamber of air spring inner chamber is connected from the inner chamber with piston valve 10, piston rod 6 can be moved freely.
Groove 9 is positioned at the right part of cylinder body 3, and described bowl-type pad 4, guide sleeve 8 and lining 5 are successively set on groove 9 the right, and the material of described lining 5 is polyoxymethylene pom, and the material of described button 7 is 20# steel.20# steel belongs to high-quality low-carbon (LC) carbon steel, cold hobbing, carburizing hardened steel, and intensity is low, and toughness, plasticity and weldability are all better.
Described piston valve 10 materials be nylon PA66, described needle 1 from left to right comprises positioning cap 103, the first needle body 101, needle groove 104 and second valve needle body 102 (as shown in Figure 2) successively, they are rotary structure and central axis is located along the same line, the internal diameter of described vent 2 is 1.5mm, and the degree of depth is 3.5mm.
Below schematically the utility model and mode of execution thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of mode of execution of the present utility model, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that not departing from the utility model creation aim, without the creationary mode of structure similar to this technological scheme and the embodiment of designing, all should belong to protection domain of the present utility model.
Claims (6)
1. an air spring, comprise cylinder body (3), piston rod (6), it is characterized in that: also comprise button (7), lining (5), guide sleeve (8), bowl-type rubber pad (4), piston valve (10) and rear block up (12), wherein:
Described rear stifled (12) are positioned at the left end of cylinder body (3), described piston valve (10) is positioned at cylinder body (3), cylinder body (3) is divided into two air chambers in left and right, described piston valve (10) is provided with Sealing (11) with cylinder body (3) surface of contact, the middle part sidewall of piston valve (10) is provided with the vent (2) of vertical direction, piston rod (6) inserts in cylinder body (3) from the right side level of cylinder body (3), and the left end of piston rod (6) stretches in piston valve (10), needle (1) inserts the left side of piston rod (6), piston valve (10) can move with piston rod (6), described piston rod (6) is hollow structure, right output port at piston rod (6) is inserted with button (7), button (7) is club shaped structure, groove (9) is positioned at the right part of cylinder body (3), described bowl-type pad (4), guide sleeve (8) and lining (5) are successively set in the air chamber on cylinder body (3) inner groovy (9) the right.
2. a kind of air spring according to claim 1, is characterized in that, the material of described lining (5) is polyoxymethylene pom.
3. a kind of air spring according to claim 1 and 2, is characterized in that, the material of described button (7) is 20# steel.
4. a kind of air spring according to claim 3, is characterized in that, described piston valve (10) material be nylon PA66.
5. a kind of air spring according to claim 1, it is characterized in that, described needle (1) from left to right comprises positioning cap (103), the first needle body (101), needle groove (104) and second valve needle body (102) successively, described positioning cap (103), the first needle body (101), needle groove (104) and second valve needle body (102) is rotary structure and central axis is located along the same line.
6. a kind of air spring according to claim 3, is characterized in that, the internal diameter of described vent (2) is 1.5mm, and the degree of depth is 3.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420221955.5U CN203796836U (en) | 2014-04-30 | 2014-04-30 | Gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420221955.5U CN203796836U (en) | 2014-04-30 | 2014-04-30 | Gas spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203796836U true CN203796836U (en) | 2014-08-27 |
Family
ID=51379048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420221955.5U Expired - Fee Related CN203796836U (en) | 2014-04-30 | 2014-04-30 | Gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203796836U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895434A (en) * | 2015-06-09 | 2015-09-09 | 上海琦天汽车科技有限公司 | Stay rope type air damper |
| CN106090102A (en) * | 2016-08-26 | 2016-11-09 | 常州市莱特气弹簧有限公司 | Safety air-leg |
| CN106122336A (en) * | 2016-08-26 | 2016-11-16 | 常州市莱特气弹簧有限公司 | Compression air-leg |
| CN106122350A (en) * | 2016-08-26 | 2016-11-16 | 常州市莱特气弹簧有限公司 | Location type air-leg |
| WO2018086019A1 (en) * | 2016-11-10 | 2018-05-17 | 宁波一力减震器有限公司 | Electrically-controlled compression-type gas spring |
| CN108180251A (en) * | 2018-02-23 | 2018-06-19 | 四川大学 | Adaptive vibration isolator and railway roadbed vibrating isolation system |
-
2014
- 2014-04-30 CN CN201420221955.5U patent/CN203796836U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895434A (en) * | 2015-06-09 | 2015-09-09 | 上海琦天汽车科技有限公司 | Stay rope type air damper |
| CN106090102A (en) * | 2016-08-26 | 2016-11-09 | 常州市莱特气弹簧有限公司 | Safety air-leg |
| CN106122336A (en) * | 2016-08-26 | 2016-11-16 | 常州市莱特气弹簧有限公司 | Compression air-leg |
| CN106122350A (en) * | 2016-08-26 | 2016-11-16 | 常州市莱特气弹簧有限公司 | Location type air-leg |
| CN106090102B (en) * | 2016-08-26 | 2018-04-17 | 常州市莱特气弹簧有限公司 | Safety-type air-leg |
| WO2018086019A1 (en) * | 2016-11-10 | 2018-05-17 | 宁波一力减震器有限公司 | Electrically-controlled compression-type gas spring |
| CN108180251A (en) * | 2018-02-23 | 2018-06-19 | 四川大学 | Adaptive vibration isolator and railway roadbed vibrating isolation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20170430 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |