CN104085388A - Built-in membrane of quick release valve for pneumatic braking and quick release valve - Google Patents
Built-in membrane of quick release valve for pneumatic braking and quick release valve Download PDFInfo
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- CN104085388A CN104085388A CN201410356901.4A CN201410356901A CN104085388A CN 104085388 A CN104085388 A CN 104085388A CN 201410356901 A CN201410356901 A CN 201410356901A CN 104085388 A CN104085388 A CN 104085388A
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- diaphragm
- release valve
- rapid release
- boss structure
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Abstract
The invention relates to a built-in membrane of a quick release valve for pneumatic braking and the quick release valve. The built-in membrane comprises a membrane body, and a first boss structure is arranged on the upper surface of the membrane body; the center of the first boss structure coincides with the center of the membrane body; a second boss structure is arranged on the lower surface of the membrane body, and the center of the second boss structure coincides with the center of the membrane body; on the lower surface of the membrane body, at least two grooves extending in the radius direction from the center of the membrane body are arranged from the circumcircle of the second boss structure to the edge of the membrane body; the grooves are symmetrical about the center of the membrane body; the center line of each groove is a curve.
Description
Technical field
The invention belongs to automobile brake field, specifically refer to a kind of built-in diaphragm and rapid release valve of the rapid release valve for aerobraking vehicle.
Background technology
Rapid release valve is applied in truck compression air brake vehicle, and it is generally arranged in brake piping near compressed air brake cylinder place, the effect of Quick air-discharge while playing brake off, thereby quick brake off.
Existing rapid release valve structure as shown in Figure 1, during assembling, venting valve 5 is sticked on lower house 2, seal ring 3 is placed in the seal groove having in advance of upper shell 1, it is urgent that diaphragm 4 is used four pairs of bolts and spring washer 6 to pass bolt 7 after being positioned on venting valve 5, and above-mentioned assembling all requires two parts center-aligned.
During automobile brake, pressurized air from brake activation valve enters rapid release valve from admission port A, promote diaphragm 4 and tightly push down venting valve 5 downwards, blow the surrounding of diaphragm 4 open simultaneously, make diaphragm edge 41 times curved, as shown in Figure 2, pressurized air, along the radial groove of lower house 2, is led to the left and right air chamber being attached thereto through 2 air extractor duct B.
During automobile brake off, pressure gas in the pipeline being connected with rapid release valve is discharged through the exhausr port of brake activation valve, it is up that the pressure gas backflow of the left and right air chamber being connected with rapid release valve promotes diaphragm 4, blocks admission port A, and the pressure gas in air chamber enters rapidly atmosphere through exhausr port C.
As described above, when rapid release valve is braked, from the gas of brake activation valve, under the edge that promotes diaphragm in curved process, high pressure gas is known from experience and is caused that diaphragm produces high-frequency vibration, thereby the air inlet that produces rapid release valve is uttered long and high-pitched sounds.
It is up that rapid release valve pressure gas in air chamber when brake off will promote diaphragm 4, and this process can cause diaphragm to produce high-frequency vibration, thereby the exhaust of generation rapid release valve is uttered long and high-pitched sounds.
Above-mentioned uttering long and high-pitched sounds is the main component of rapid release valve air inlet and exhaust roar.
In order to solve the exhaust roar of rapid release valve in braking, in recent years by a shock-absorption device 8 is installed in rapid release valve lower end, as shown in Figure 3.Such technology has certain use to reducing rapid release valve exhaust roar, but its pneumatic noise producing during exhausr port exhaust only can reduce brake off time, what in the time of can not reducing braking, diaphragm 4 high-frequency vibrationes produced utters long and high-pitched sounds.And installed after shock-absorption device, also exist take up room many, high in cost of production problem.
Summary of the invention
The object of the invention is by the structural development to diaphragm in rapid release valve, while being reduced in braking or brake off, gas causes the high-frequency vibration of diaphragm, reduces noise.
The present invention is achieved by the following technical solutions:
The built-in diaphragm of rapid release valve for compression air brake, includes diaphragm body, at the upper surface of described diaphragm body, is provided with first boss structure; The center superposition of the center of described the first boss structure and diaphragm body;
Lower surface at described diaphragm body is provided with second boss structure, the center superposition of the center of described the second boss structure and diaphragm body;
At the lower surface of described diaphragm body, from the circumscribing circle of described the second boss structure, to described diaphragm body edges part, be provided with at least two grooves that extend along radial direction from described diaphragm body center; Described groove is with the Central Symmetry of described diaphragm body; The center line of described each groove is curve.
The degree of depth of described groove reduces gradually from circumscribing circle to the described diaphragm body edges direction of described the second boss structure.
The circumscribed circle diameter of described the first boss structure is greater than the circumscribed circle diameter of described the second boss structure.
The thickness of described the first boss structure is not more than the thickness of described diaphragm body.
The thickness of described the second boss structure is not more than the thickness of described diaphragm body, and is less than the thickness of described the first boss structure.
The cross section of the plane that is parallel to described diaphragm body of described the first boss structure is circle, triangle, quadrangle or polygon.
The spherical cap-shaped structure of described the second boss structure.
The described groove of described diaphragm body lower surface is fan-shaped and distributes.
A compression air brake rapid release valve, includes built-in diaphragm, upper shell, lower house, venting valve, seal ring and the binding bolt of the described rapid release valve of above-mentioned middle any one;
On described upper shell, be provided with admission port, on described upper shell, be provided with screw, for passing binding bolt;
On described lower house, be provided with, two air extractor ducts, connect respectively two air chambers of brake activation valve; An exhausr port;
Described exhausr port connects described venting valve;
The described upper shell surface that contacts with described lower house is provided with seal groove, and described seal ring is arranged in described seal groove;
The built-in diaphragm arrangement of described rapid release valve is between described seal ring and described venting valve.
On described lower house, be provided with internal thread hole, for same binding bolt, fix.
The invention has the beneficial effects as follows:
1, by two of the built-in diaphragm of rapid release valve surperficial boss structures, suppressed diaphragm and when being subject to high pressure gas impact, produced the situation of high-frequency vibration.
2, by the spherical cap-shaped structure to the application's the built-in diaphragm of rapid release valve, make the gas refluxing from two air chambers of brake activation valve when Impact Diaphragm, changed the direction of power, play flow-disturbing effect, therefore, can reduce the concentrating of the power of diaphragm, reduce the situation that produces high-frequency vibration.
3,, by the application's technical scheme, do not need to use external shock-absorption device.
Accompanying drawing explanation
Fig. 1 is existing rapid release valve STRUCTURE DECOMPOSITION figure;
Fig. 2 is the existing built-in diaphragm applied force schematic diagram of rapid release valve;
Fig. 3 is existing rapid release valve structural representation;
Fig. 4 is an example structure schematic diagram of the built-in diaphragm of rapid release valve of the present invention;
Fig. 5 is an embodiment front view of the built-in diaphragm of rapid release valve of the present invention;
Fig. 6 is an embodiment of the built-in diaphragm of the rapid release valve of the present invention figure that bows;
Fig. 7 is an embodiment upward view of the built-in diaphragm of rapid release valve of the present invention.
The specific embodiment
Describe by the following examples technical scheme of the present invention in detail, following embodiment is only exemplary, only can be used for explaining and technical scheme of the present invention being described, and can not to be interpreted as is the restriction to technical solution of the present invention.
In the application, following described upper surface refers to that the surface in the face of upper shell is upper surface, and the surface of facing lower house is lower surface.
A compression air brake rapid release valve, includes the built-in diaphragm of rapid release valve, upper shell, lower house, venting valve, seal ring and binding bolt; In the application's rapid release valve, be only that the diaphragm of existing rapid release valve is carried out to structural development, and omitted shock-absorption device, the same prior art of other structure of rapid release valve.
On upper shell, be provided with admission port, on described upper shell, be provided with 4 screws, for passing binding bolt; Admission port connects with source of the gas.
On lower house, be provided with, two air extractor ducts, connect respectively two air chambers of brake activation valve; An exhausr port;
Described exhausr port connects venting valve; Vent valves is arranged in lower house, between aie escape valve and lower house, is formed with space, and gas flows in this space.
The upper shell surface that contacts with lower house is provided with seal groove, and described seal ring is arranged in seal groove;
The built-in diaphragm arrangement of rapid release valve is between seal ring and venting valve.On lower house, be provided with internal thread hole, for same binding bolt, fix.
As shown in Figures 4 to 7, the built-in diaphragm of rapid release valve is rubber or High molecular material or polyester material processing, includes diaphragm body 101, at the upper surface of described diaphragm body 101, is provided with first boss structure 111; The center superposition of the center of described the first boss structure and diaphragm body.
Lower surface at described diaphragm body 101 is provided with second boss structure 113, the center superposition of described the second boss structure 113 center and diaphragm body.
The circumscribed circle diameter of the first boss structure is less than the diameter of admission port, can guarantee that like this high pressure gas enter rapid release valve.In the present embodiment, the cross section of the plane that is parallel to described diaphragm body of the first boss structure is for circular, in the present embodiment, diaphragm body is a diameter phi 50mm, the column structure of thickness 2mm, in use produce and acutely utter long and high-pitched sounds, after through analogue test repeatedly, at diaphragm upper surface, increased a φ 30mm, the round boss of thickness 2mm, rapid release valve exhaust is uttered long and high-pitched sounds significantly weak, obtains good effect.
The thickness of the second boss structure is not more than the thickness of diaphragm body, and is less than the thickness of the first boss structure.And the spherical cap-shaped structure of the second boss structure in the present embodiment.The usefulness of this structure is, when the built-in diaphragm of high pressure gas flow-reversing impingement rapid release valve of two air chambers of control cock, because there is the spherical cap structure of built-in diaphragm lower surface, the direction of the power on impact can produce change, the direction that is power is not to carry out according to definite direction bunchy, but the direction of power changes with the direction of original power and has a flow-disturbing effect, like this to the impact dynamics of the built-in diaphragm lower surface of rapid release valve have weaken, but because conservation energy, can offer again the enough lifting power of the built-in diaphragm of rapid release valve, to open aie escape valve, in this case, gas is when the space by between the built-in diaphragm of rapid release valve and aie escape valve, to the oscillation frequency of the built-in diaphragm of rapid release valve, can reduce, therefore, exhaust roar is corresponding reducing also.
At the lower surface of diaphragm body 101, from the circumscribing circle of the second boss structure 113, to diaphragm body edges part, be provided with at least two grooves 114 that extend along radial direction from diaphragm body center; Described groove 114 is with the Central Symmetry of diaphragm body 101.The degree of depth of groove 114 reduces gradually from the circumscribing circle direction of diaphragm body 101 edge to the second boss structures 113.One end of nearly the second boss structure of groove 114 is arranged in the external diameter of aie escape valve.In each embodiment of the application, the center line of each groove is curve, and the fluted flaabellum shape that is of institute of diaphragm body lower surface distributes.
The said structure setting of groove 114, when carrying out brake off, the high pressure gas that refluxed by two air chambers of brake activation valve are understood some and are improved flow velocity by groove guides, the gas of nominal volume passes through time shorten like this, therefore, frequency reduces, and is conducive to noise decrease.And by adopting the flaabellum shape of groove to distribute, make the flow direction of reflux gas produce a centripetal rotation, can not only make the power acting on diaphragm body reduce, and be conducive to pass through fast exhausr port.
In the application's embodiment, groove is 6, and all, with the Central Symmetry of diaphragm body, in other embodiment of the application, the quantity of groove can, for being greater than 3, all can realize the application's technical scheme.
In other embodiment of the application, the cross section of the plane that is parallel to described diaphragm body of the first boss structure is triangle, quadrangle or polygon, is preferably circle, and this is because circle is conducive to diaphragm body stress equalization.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, these equivalent form of values fall into the application's appended claims limited range equally.Scope of the present invention is by claims and be equal to and limit.
Claims (10)
1. a built-in diaphragm for rapid release valve for compression air brake, includes diaphragm body, it is characterized in that: the upper surface at described diaphragm body is provided with first boss structure; The center superposition of the center of described the first boss structure and diaphragm body;
Lower surface at described diaphragm body is provided with second boss structure, the center superposition of the center of described the second boss structure and diaphragm body;
At the lower surface of described diaphragm body, from the circumscribing circle of described the second boss structure, to described diaphragm body edges part, be provided with at least two grooves that extend along radial direction from described diaphragm body center; Described groove is with the Central Symmetry of described diaphragm body; The center line of described each groove is curve.
2. the built-in diaphragm of rapid release valve for compression air brake according to claim 1, is characterized in that: the degree of depth of described groove reduces gradually from circumscribing circle to the described diaphragm body edges direction of described the second boss structure.
3. the built-in diaphragm of rapid release valve for compression air brake according to claim 1, is characterized in that: the circumscribed circle diameter of described the first boss structure is greater than the circumscribed circle diameter of described the second boss structure.
4. the built-in diaphragm with rapid release valve according to the compression air brake described in any one in claim 1 or 3, is characterized in that: the thickness of described the first boss structure is not more than the thickness of described diaphragm body.
5. the built-in diaphragm with rapid release valve according to the compression air brake described in any one in claim 1 or 3, is characterized in that: the thickness of described the second boss structure is not more than the thickness of described diaphragm body, and is less than the thickness of described the first boss structure.
6. the built-in diaphragm of rapid release valve for compression air brake according to claim 1, is characterized in that: the cross section of the plane that is parallel to described diaphragm body of described the first boss structure is circle, triangle, quadrangle or polygon.
7. the built-in diaphragm of rapid release valve for compression air brake according to claim 1, is characterized in that: the spherical cap-shaped structure of described the second boss structure.
8. the built-in diaphragm with rapid release valve according to the compression air brake described in any one in claim 1 or 2, is characterized in that: the described groove of described diaphragm body lower surface is fan-shaped and distributes.
9. a compression air brake rapid release valve, is characterized in that: the built-in diaphragm, upper shell, lower house, venting valve, seal ring and the binding bolt that include the described rapid release valve of any one in above-mentioned 1-8;
On described upper shell, be provided with admission port, on described upper shell, be provided with screw, for passing binding bolt;
On described lower house, be provided with, two air extractor ducts, connect respectively two air chambers of brake activation valve; An exhausr port;
Described exhausr port connects described venting valve;
The described upper shell surface that contacts with described lower house is provided with seal groove, and described seal ring is arranged in described seal groove;
The built-in diaphragm arrangement of described rapid release valve is between described seal ring and described venting valve.
10. compression air brake rapid release valve according to claim 9, is characterized in that: on described lower house, be provided with internal thread hole, for same binding bolt, fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356901.4A CN104085388B (en) | 2014-07-24 | 2014-07-24 | Built-in membrane of quick release valve for pneumatic braking and quick release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356901.4A CN104085388B (en) | 2014-07-24 | 2014-07-24 | Built-in membrane of quick release valve for pneumatic braking and quick release valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104085388A true CN104085388A (en) | 2014-10-08 |
| CN104085388B CN104085388B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410356901.4A Active CN104085388B (en) | 2014-07-24 | 2014-07-24 | Built-in membrane of quick release valve for pneumatic braking and quick release valve |
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| Country | Link |
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| CN (1) | CN104085388B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336704A (en) * | 2016-12-19 | 2017-11-10 | 安徽江淮汽车集团股份有限公司 | Quick release valve |
Citations (6)
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| CN1302522A (en) * | 1999-04-22 | 2001-07-04 | 株式会社建伍 | Loundspeaker diaphragm |
| CN1454299A (en) * | 2000-07-14 | 2003-11-05 | 福乐尼·乐姆宝公开有限公司 | A disc for a disc brake |
| CN202593496U (en) * | 2012-03-29 | 2012-12-12 | 诸暨市万盛机械有限公司 | Quick release valve |
| CN103206513A (en) * | 2013-04-07 | 2013-07-17 | 安徽江淮汽车股份有限公司 | Idle gear pad |
| JP2014021594A (en) * | 2012-07-13 | 2014-02-03 | Koganei Corp | Pressure reducing valve |
| CN203601261U (en) * | 2013-11-28 | 2014-05-21 | 安徽江淮汽车股份有限公司 | Quick release valve membrane and quick release valve |
-
2014
- 2014-07-24 CN CN201410356901.4A patent/CN104085388B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302522A (en) * | 1999-04-22 | 2001-07-04 | 株式会社建伍 | Loundspeaker diaphragm |
| CN1454299A (en) * | 2000-07-14 | 2003-11-05 | 福乐尼·乐姆宝公开有限公司 | A disc for a disc brake |
| CN202593496U (en) * | 2012-03-29 | 2012-12-12 | 诸暨市万盛机械有限公司 | Quick release valve |
| JP2014021594A (en) * | 2012-07-13 | 2014-02-03 | Koganei Corp | Pressure reducing valve |
| CN103206513A (en) * | 2013-04-07 | 2013-07-17 | 安徽江淮汽车股份有限公司 | Idle gear pad |
| CN203601261U (en) * | 2013-11-28 | 2014-05-21 | 安徽江淮汽车股份有限公司 | Quick release valve membrane and quick release valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336704A (en) * | 2016-12-19 | 2017-11-10 | 安徽江淮汽车集团股份有限公司 | Quick release valve |
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| CN104085388B (en) | 2017-05-10 |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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