CN201170281Y - Three-segment strength spring with pressure discharging function - Google Patents
Three-segment strength spring with pressure discharging function Download PDFInfo
- Publication number
- CN201170281Y CN201170281Y CNU2008200785399U CN200820078539U CN201170281Y CN 201170281 Y CN201170281 Y CN 201170281Y CN U2008200785399 U CNU2008200785399 U CN U2008200785399U CN 200820078539 U CN200820078539 U CN 200820078539U CN 201170281 Y CN201170281 Y CN 201170281Y
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- piston
- cylinder body
- damping
- support pad
- valve plate
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Abstract
The utility model provides a three-section force spring with pressure unloading function, which comprises a cylinder body, a piston and a damping oil region which are arranged inside the cylinder body, a piston rod connected with the piston and a rear block; a supporting gasket is arranged on the lower part of the piston; a valve plate is glidingly fixed between the piston and the supporting gasket; and the supporting gasket and the valve plate are supported by four-point contact to form a one way valve type piston. The structure adopts the one way valve type piston formed by the special valve plate; and a section of a damping reduction groove, which is a pressure reduction groove, is processed on the cylinder wall of the gas spring to achieve the effect of pressure unloading. The appearance of the three-section force spring meets the application requirements of certain body-building apparatus and medical equipment.
Description
Technical field
The utility model relates to a kind of air spring, and particularly a kind of have three sections strength springs of the compression functions of rushing down.
Background technique
The applicable field of air spring is more and more wider, and it is also more and more diversified to the attainable performance of air spring when using, and existing at present air spring is when doing olefiant gas mixing working pressure, it can only present two sections two kinds of power: the one, and this gas section is light power, the 2nd, the damping force that the oil section produces is a gravity.Can on some apparatus, it not need very long damping, but it to use light power on the contrary after damping one segment length, bad even can not use in a lot of fields using effect.
The model utility content
The utility model provides a kind of and can produce three sections power and have the air spring that rushes down compression functions.
In order to solve above technical problem, a kind of three sections strength springs of the compression functions of rushing down that have of the present utility model, comprise that the piston in cylinder body, the cylinder body blocks up with damping oil district, the piston rod that is connected with piston, back, described support pad is located at the piston below, valve block slides and is fixed between piston and the support pad, support pad is at 4 with valve block and contacts support, constitutes the one-way valve type piston.
Described piston has a plurality of straight hole forms and is pressed with horizontal damping slot.
Described on cylinder barrel the inboard outwards be provided with and fall damping slot.
The advantage of above structure is: shown in Figure 2, described these three sections strength springs present three power sections of jump type in the overall process of moving and also can be described as three kinds of power values, and the one, this gas section is light power, the 2nd, cloudy Buddhist nun's power that the oil section produces, the 3rd, gravity.Can on some apparatus, it not need very long damping, but it to use light power on the contrary after damping one segment length.Therefore, the one-way valve type piston that has adopted special valve block to form, and having processed one section on the air spring casing wall, to fall damping slot be relief groove, makes it play the effect of rushing down pressure.Some physical fitness apparatus and medical device applications demand have been satisfied in its appearance.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the force value tests plotted curve of three sections power;
Fig. 3 is the enlarged view of piston in the utility model;
Fig. 4 is the enlarged view of support plate in the utility model.
Embodiment
As shown in Figure 1, back stifled 1 welds together with cylinder barrel and has just formed the airtight cylinder body of air spring.Piston 4 is built in the cylinder body, and seals with pilot seal system 8 between the cylinder body.Piston rod 2 is to be sealedly and fixedly connected together by O type circle 3 with piston assembly.As shown in Figure 3, described piston 4 adopts a plurality of straight hole forms and is pressed with horizontal damping slot 9, and support pad 5 is located at piston 4 belows, and valve block 6 slides and is fixed between piston 4 and the support pad 5, and slides between piston 4 and support pad 5; As shown in Figure 4, support pad 5 has 4 convex-concave points 10, and support pad 5 is at 4 with valve block 6 and contacts support, and what guarantee that valve block 6 is opened spacingly guarantees valve block 6 flexibility when closing again; As mentioned above, piston 4, valve block 6, support pad 5 constitute the one-way valve type piston.Valve block 6 is just to have constituted one-way valve when air spring stretches or compress, and reason is that damping hole and the groove on the piston blocked sealing by valve block when air spring compresses, and just opens when air spring stretches.Fall damping slot 7 and be on cylinder barrel outwards inboard, the depth of groove be according to fall resistance what, fall the resistance zone and decide.Valve block had been closed part piston hole or groove when its effect was exactly the air spring lower compression, was moveable to rush down in it has formed when falling damping slot to have reached the effect of falling resistance, step-down, realized user's purpose.
Claims (3)
1, a kind of have three sections strength springs of the compression functions of rushing down, comprise that the piston in cylinder body, the cylinder body blocks up with damping oil district, the piston rod that is connected with piston, back, it is characterized in that: described support pad is located at the piston below, valve block slides and is fixed between piston and the support pad, support pad is at 4 with valve block and contacts support, constitutes the one-way valve type piston.
2, a kind of three sections strength springs of the compression functions of rushing down that have according to claim 1, it is characterized in that: described piston has a plurality of straight hole forms and is pressed with horizontal damping slot.
3, a kind of three sections strength springs of the compression functions of rushing down that have according to claim 1 is characterized in that: described on cylinder barrel the inboard outwards be provided with and fall damping slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200785399U CN201170281Y (en) | 2008-01-14 | 2008-01-14 | Three-segment strength spring with pressure discharging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200785399U CN201170281Y (en) | 2008-01-14 | 2008-01-14 | Three-segment strength spring with pressure discharging function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201170281Y true CN201170281Y (en) | 2008-12-24 |
Family
ID=40209334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200785399U Expired - Fee Related CN201170281Y (en) | 2008-01-14 | 2008-01-14 | Three-segment strength spring with pressure discharging function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201170281Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104016206A (en) * | 2014-06-04 | 2014-09-03 | 张纬 | Damping type over discharge buffering device for mine hoisting system |
| CN104565166A (en) * | 2013-09-19 | 2015-04-29 | 达德科公司 | Overtravel Pressure Relief For A Gas Spring |
| CN106090100A (en) * | 2016-08-11 | 2016-11-09 | 北京磊焱氮气弹簧技术研究所 | A kind of compressed gas spring of any lockable device |
-
2008
- 2008-01-14 CN CNU2008200785399U patent/CN201170281Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565166A (en) * | 2013-09-19 | 2015-04-29 | 达德科公司 | Overtravel Pressure Relief For A Gas Spring |
| CN104565166B (en) * | 2013-09-19 | 2018-09-14 | 达德科公司 | Excess of stroke pressure release for gas spring |
| CN104016206A (en) * | 2014-06-04 | 2014-09-03 | 张纬 | Damping type over discharge buffering device for mine hoisting system |
| CN106090100A (en) * | 2016-08-11 | 2016-11-09 | 北京磊焱氮气弹簧技术研究所 | A kind of compressed gas spring of any lockable device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NINGBO YILI SHOCK ABSORBER CO., LTD. Free format text: FORMER OWNER: NANTONG KINGSUN PRECISION MACHINERY UNITS CO., LTD. Effective date: 20111103 Owner name: NING CHENG |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 226500 NANTONG, JIANGSU PROVINCE TO: 315830 NINGBO, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20111103 Address after: 315830 Zhejiang Province, Ningbo city Beilun District Chunxiao six road No. 66 Co-patentee after: Ning Cheng Patentee after: Ningbo Yili Shock Absorber Co.,Ltd. Address before: 226500 Rugao province Jiangsu City Jiuhua Zhen Ying Fang village 5 groups Patentee before: Nantong Kingsun Precision Machinery Units Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 Termination date: 20120114 |