CN202165504U - Rubber spring - Google Patents
Rubber spring Download PDFInfo
- Publication number
- CN202165504U CN202165504U CN2011202824898U CN201120282489U CN202165504U CN 202165504 U CN202165504 U CN 202165504U CN 2011202824898 U CN2011202824898 U CN 2011202824898U CN 201120282489 U CN201120282489 U CN 201120282489U CN 202165504 U CN202165504 U CN 202165504U
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- CN
- China
- Prior art keywords
- rubber spring
- section
- trapezoidal
- cross
- utility
- 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
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Abstract
The utility model discloses a rubber spring, which integrally adopts a circular ring structure and is provided with a shuttle-shaped integral cross section, wherein the two ends of the cross section are trapezoidal, and trapezoidal waists at the two ends of the rubber spring serve as contact surfaces. The rubber spring has the benefits that the under the premise that the pre-tightening force exerted on the rubber spring is unchanged, two stressed surfaces are arranged at the two ends of the rubber spring respectively, and the total pressing force of the two stressed surfaces is larger than the pre-tightening force, so that the sealing effect is improved, the grout leakage due to the fact that the rubber spring is not well sealed during the high-pressure pumping is effectively avoided, and failures such as dust stratification and pipe blockage and the like are avoided.
Description
Technical field
The utility model belongs to the concrete pump technical field, specifically, has related to a kind of rubber spring of S valve formula concrete pump, the sealing of S valve switched system in the time of can improving concrete pumping.
Background technique
At present, concrete pump is widely-used in construction industry, and S valve formula concrete pump proportion is maximum; Use the most extensively, the inlet of the type concrete pump through the S valve installed rubber spring, and cutting ring is installed behind the rubber spring; Cutting ring is swung with S valve, rubber spring; Cutting ring and the glasses plate frictions that are installed in two conveying cylinder front ends when the S valve is swung realize the switching of swing S valve and two conveying cylinder opposite joining relations, cooperate two to carry the suction of cylinders and release to realize uninterrupted pumping.Rubber spring plays the function of under certain pretightening force, floating, and will guarantee the sealing between S valve and cutting ring.Existing rubber spring cross section is a rectangle, and both ends of the surface are the plane, relies on the face seal of pretightening force compressing end, when the high pressure pump concrete, can not effectively guarantee sealing, is easy to generate the spillage phenomenon and causes dust stratification and plugging.
Summary of the invention
The utility model has overcome deficiency of the prior art; A kind of rubber spring is provided; Can be at the sealing effect that effectively improves rubber spring between S valve and cutting ring under the identical pretightening force, the rubber spring poor sealing causes spillage when effectively preventing the high pressure pumping, prevents faults such as dust stratification, plugging.
The technological scheme of the utility model is: a kind of rubber spring, and integral body is circle structure, and complete cross-section is fusiformis, and its two ends, cross section are trapezoidal, do surface of contact with the trapezoidal waist at rubber spring two ends.
The working principle of the utility model is following: rubber spring receives under the certain situation of pretightening force, and trapezoidal waist surface of contact place carries out resolution of forces at the rubber spring two ends, and pretightening force is for making a concerted effort, on the trapezoidal waist surface of contact in rubber spring two ends component and greater than making a concerted effort.
Compared with prior art, the beneficial effect of the utility model is: can receive under the constant situation of pretightening force size at rubber spring, make the rubber spring two ends have respectively two stress surfaces and two stress surface impacting forces and greater than pretightening force, thereby improve sealing effect.
Description of drawings
Fig. 1 is a kind of rubber spring sectional view of the utility model.
Fig. 2 is the stressed exploded view in a kind of rubber spring of the utility model cross section.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in detail:
Among Fig. 1: a kind of rubber spring sectional view, rubber spring integral body is circle structure, and the cross section is a fusiformis, and the two ends, cross section are trapezoidal, and two trapezoidal waists are surface of contact.
Among Fig. 2: the stressed exploded view in a kind of rubber spring cross section; F is a pretightening force among the figure; F is the power that decomposes on the trapezoidal central plane in rubber spring two ends, and F equals f when 60 ° of trapezoidal two stringcourse equal in length and angles, so just forms two sealing contact surfaces; And the impacting force on each sealing surface all equals pretightening force, effectively improves the sealing effect of rubber spring.
Claims (1)
1. rubber spring, it is characterized in that: its integral body is circle structure, and complete cross-section is fusiformis, its two ends, cross section are trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202824898U CN202165504U (en) | 2011-08-04 | 2011-08-04 | Rubber spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202824898U CN202165504U (en) | 2011-08-04 | 2011-08-04 | Rubber spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165504U true CN202165504U (en) | 2012-03-14 |
Family
ID=45801330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202824898U Expired - Fee Related CN202165504U (en) | 2011-08-04 | 2011-08-04 | Rubber spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202165504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219919A (en) * | 2019-06-03 | 2019-09-10 | 中国第一汽车股份有限公司 | A kind of design method of suspension limit rubber pad |
-
2011
- 2011-08-04 CN CN2011202824898U patent/CN202165504U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219919A (en) * | 2019-06-03 | 2019-09-10 | 中国第一汽车股份有限公司 | A kind of design method of suspension limit rubber pad |
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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: 20120314 Termination date: 20170804 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |