CN211252550U - Wind pressure regulator for non-gravity vehicle retarder - Google Patents
Wind pressure regulator for non-gravity vehicle retarder Download PDFInfo
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- CN211252550U CN211252550U CN201921402688.0U CN201921402688U CN211252550U CN 211252550 U CN211252550 U CN 211252550U CN 201921402688 U CN201921402688 U CN 201921402688U CN 211252550 U CN211252550 U CN 211252550U
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Abstract
The utility model provides a wind pressure regulator for non-gravity vehicle retarder, which comprises a shell, an input connector and an output connector which are arranged on the shell, a pressure regulating valve, an air chamber, a plurality of three-way two-position valves and a wind pressure regulating body which are arranged in the shell, wherein the wind pressure regulating body comprises a valve body, a cover body arranged on one side of the valve body and a sealing cover arranged on the other side of the valve body; a first cavity and a piston are arranged between the cover body and the valve body; the first cavity is communicated with a fourth vent hole on the valve body, and the fourth vent hole is communicated with the pressure regulating valve; the valve body is provided with an inner hole and an air outlet hole which are communicated with each other, and the air outlet hole is communicated with the output connector; a plurality of cavities are formed between the valve body and the sealing cover through a plurality of elastic gaskets and spacer bushes which are alternately arranged. A wind pressure regulator for non-gravity type vehicle retarder, need not to carry out pressure adjustment, can solve the pressure value drift problem of current wind pressure regulator in the use, and can avoid in the use to maintain and the inspection.
Description
Technical Field
The utility model belongs to non-gravity type vehicle reduction gear field especially relates to a wind pressure regulator for non-gravity type vehicle reduction gear.
Background
The wind pressure regulator is used for controlling the pressure value of compressed air in the cylinder of the non-gravity vehicle speed reducer, so that different grades of braking of the vehicle is realized. At present, there are two types of wind pressure regulators, namely a mechanical wind pressure regulator and a pressure switch type wind pressure regulator. The mechanical wind pressure regulator utilizes the characteristic that the displacement of the spring pipe is different at the lower end parts of different wind pressures to switch on or off a control circuit so as to control the pressure value of compressed air entering a cylinder. The pressure switch type wind pressure regulator is characterized in that each level of wind pressure grade is provided with a normally closed pressure switch and a normally open pressure switch, and the on-off of the normally closed pressure switch and the normally open pressure switch is utilized to switch on or off a control circuit so as to control the pressure value of compressed air entering a cylinder. The existing wind pressure regulator utilizes the adjusting screw to regulate the pressure, and the adjusting screw can loosen to cause the drift of the pressure value, so that the regular inspection is needed.
Disclosure of Invention
In view of this, the utility model aims at providing a wind pressure regulator for non-gravity type vehicle retarder to overcome prior art's defect, need not to carry out pressure adjustment, can solve the pressure value drift problem of current wind pressure regulator in the use, and can avoid in the use to maintain and inspect.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the wind pressure regulator for the non-gravity type vehicle speed reducer comprises a shell, an input connector and an output connector which are arranged on the shell, an air chamber arranged in the shell, a regulating valve and a wind pressure regulating whole body, wherein the wind pressure regulating body comprises a valve body, a cover body arranged on one side of the valve body and a sealing cover arranged on the other side of the valve body;
a first cavity and a piston are arranged between the cover body and the valve body; the piston can slide in the first cavity along the axial direction of the piston; the first cavity is communicated with a fourth vent hole on the valve body, and the fourth vent hole is communicated with the regulating valve and the air chamber;
the valve body is provided with an inner hole and an air outlet hole which are communicated with each other, and the air outlet hole is communicated with the output connector; a plurality of cavities are formed between the valve body and the sealing cover through a plurality of elastic gaskets and spacer bushes which are alternately arranged; a shaft valve is arranged in a cavity formed by the two elastic gaskets and the spacer bush which are close to the valve body; one end of the shaft valve, which is close to the cover body, sequentially penetrates through the elastic gasket close to the valve body and the inner hole in the valve body to extend into the first cavity, and the end part of the shaft valve is connected with the piston; one end of the shaft valve, which is close to the sealing cover, is in surface contact with the fastening unit, and one end of the fastening unit, which is close to the sealing cover, sequentially penetrates through the plurality of elastic gaskets in the middle to enter one cavity body which is close to the sealing cover; a membrane is sleeved on the position of the fastening unit in each cavity; all the diaphragms are spaced from the corresponding inner side walls of the cavity; each cavity provided with the diaphragm is communicated with one vent hole, and all the vent holes are arranged on the valve body at intervals; the vent holes of all the cavities provided with the membranes are communicated with the air chamber through a two-position three-way valve.
Furthermore, the periphery of the piston is sleeved with an elastic piece.
Further, the elastic piece is a spring; and a third cavity is arranged on one side of the valve body close to the elastic gasket, and the third cavity is communicated with the air outlet and the inner hole on the valve body.
Further, a push plate and a pressure plate are arranged in a cavity formed by the two elastic gaskets and the spacer bush, which are close to the valve body, and a shaft valve is arranged on the push plate; the pressing plate is sleeved on the fastening unit and limits the fastening unit.
Further, except for the one membrane closest to the cover, the other membrane is attached on both sides to its immediately adjacent resilient pad.
Furthermore, the elastic gasket is a rubber gasket.
Furthermore, the number of the elastic gaskets is 4, and the number of the spacer sleeves is 3.
Further, the two-position three-way valve is a two-position three-way electromagnetic valve; the vent hole corresponding to each cavity provided with the diaphragm extends to the outer surface of the valve body, and each vent hole is connected with a two-position three-way valve through a pipeline; all the two-position three-way valves are communicated with a three-way pipe, and the three-way pipe is arranged on a first pipeline; the pipe section of the first pipeline, which is positioned on one side of the three-way pipe, is communicated with the fourth through hole, and the pipe section of the first pipeline, which is positioned on the other side of the three-way pipe, is sequentially communicated with the pressure regulating valve and the air chamber.
Furthermore, the number of the cavities provided with the membranes is 3, and the number of the vent holes and the number of the two-position three-way valves corresponding to the cavities are 3.
Furthermore, the longitudinal section of the spacer bush is annular; the fastening unit is a fastening bolt; the cover body and the valve body, the valve body and the elastic gasket adjacent to the valve body, the two adjacent elastic gaskets and the seal cover and the elastic gasket adjacent to the seal cover are all fastened through bolts.
The utility model discloses still relate to the application that is arranged in the wind pressure regulator of non-gravity type vehicle reduction gear in hump marshalling yard with non-gravity type vehicle reduction gear as above.
Compared with the prior art, a wind pressure regulator for non-gravity type vehicle reduction gear have following advantage:
1. and the control of multistage wind pressure grades can be realized.
2. The output of the wind pressure value is stable, the problem of pressure value drift is avoided, and the workload of maintenance and inspection is reduced.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic view of the wind pressure regulator for a non-gravity vehicle retarder according to the present invention;
FIG. 2 is a schematic view of the overall structure of the wind pressure regulator for a non-gravity vehicle speed reducer according to the present invention;
FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 2;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 5 is a cross-sectional view taken along plane C-C of FIG. 2;
FIG. 6 is a cross-sectional view taken along plane D-D of FIG. 2;
fig. 7 is a cross-sectional view taken along plane E-E of fig. 2.
Description of reference numerals:
1-an input connector; 2-air chamber; 3-pressure regulating valve; 4-a three-way pipe; 5-a first two-position three-way valve; 6-a second two-position three-way valve; 7-a third two-position three-way valve; 8-linker I; 9-linker II; 10-linker III; 11-linker IV; 12-linker V; 13-wind pressure adjusting; 14-an output connector; 15-a cover body; 16-a valve body; 17-a piston; 18-an elastic member; 19-axis valve; 20-a first resilient pad; 21-a push plate; 22-a first spacer; 23-a platen; 24-diaphragm I; 25-a second spacer sleeve; 26-membrane II; 27-a third spacer; 28-membrane iii; 29-a fastening unit; 30-sealing the cover; 31-a bolt; 32-a first vent; 33-a second vent; 34-a third venting hole; 35-a housing; 36-an inner bore; 37-a second resilient pad; 38-a third resilient pad; 39-a fourth resilient pad; 40-a second line; 41-a first line; 43-a fourth vent; 44-a third line; 45-air outlet holes; 46-a first cavity; 47-a second cavity; 48-a third cavity; 49-a fourth cavity; 50-a first cavity; 52-third cavity.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It should be noted that the number of the cavities provided with the diaphragms, the number of the diaphragms, and the number of the vent holes corresponding to the cavities provided with the diaphragms are set to be consistent with the number of the two three-way valves, and the number of the vent holes is determined according to the number of the wind pressure stages to be adjusted, and when the number of the wind pressure stages to be adjusted is large, the number of the vent holes is set to be large; when the number of the wind pressure levels needing to be adjusted is small, the number is set to be small. It should be particularly noted that all the two-position three-way valves preferably adopt two-position three-way electromagnetic valves, and the materials of all the spacer bushes and all the membranes are not limited, but preferably 2a12 aluminum alloy is adopted.
The following describes a structure of a wind pressure regulator for a non-gravity vehicle speed reducer, which is described in the present invention, by taking the case where the number of the air vents and the two three-way valves corresponding to the cavity provided with the diaphragm, and the cavity provided with the diaphragm is 3, as an example. For convenience of description, the diaphragm is divided into a diaphragm i 24, a diaphragm ii 26 and a diaphragm iii 28, the cavity provided with the diaphragm is divided into a first cavity 46, a second cavity 47 and a third cavity 48, and the vent holes other than the fourth vent hole (i.e., the vent holes corresponding to the cavity provided with the diaphragm) are divided into a first vent hole 32, a second vent hole 33 and a third vent hole 34.
As shown in fig. 1 and 2, the wind pressure regulator for a non-gravity type vehicle speed reducer comprises a housing 35, an input connector 1 and an output connector 14 mounted on the housing 35, a pressure regulating valve 3 mounted in the housing 35, an air chamber 2, and a wind pressure regulating unit 13, wherein the wind pressure regulating unit 13 comprises a valve body 16, a cover 15 mounted on one side of the valve body 16, and a cover 30 mounted on the other side of the valve body 16;
a first cavity 50 and a piston 17 are arranged between the cover body 15 and the valve body 16; the piston 17 is arranged in the first cavity 50, and the upper end of the piston extends into an inner hole of the cover body 15; the piston 17 is axially slidable along the inner hole of the cover 15 in the first cavity 50; the first cavity 50 is communicated with a fourth air vent 43 on the valve body 16, and the fourth air vent 43 is communicated with the pressure regulating valve 3 and the air chamber 2; the air chamber 2 communicates with the input fitting 1.
The valve body 16 is provided with an inner hole 36 and an air outlet hole 45 which are communicated with each other, and the air outlet hole 45 is communicated with the output connector 14; a first elastic gasket 20, a first spacer 22, a second elastic gasket 37, a second spacer 25, a third elastic gasket 38, a third spacer 27 and a fourth elastic gasket 39 are arranged between the valve body 16 and the sealing cover 30, and the adjacent two are connected through a bolt 31. The first elastic gasket 20, the first spacer 22 and the second elastic gasket 37 form a fourth cavity 49, the second elastic gasket 37, the second spacer 25 and the third elastic gasket 38 form a first cavity 46, the third elastic gasket 38, the third spacer 27 and the fourth elastic gasket 39 form a second cavity 47, and the fourth elastic gasket 39 and a cavity inside the sealing cover 30 form a third cavity 48. The shaft valve 19 is installed in the fourth cavity 49, specifically, the pressing plate 23 and the pushing plate 21 are installed in the fourth cavity 49, wherein the shaft valve 19 is installed on the pushing plate 21, one end of the shaft valve 19, which is close to the valve body 16, passes through the through hole on the first elastic gasket 20 and then passes through the inner hole 36 on the valve body 16, and the end part of the shaft valve 19 is in surface contact with the end part of the piston 17, which is close to one side of the valve body 16. It should be noted here that the inner hole 36 is in clearance fit with the shaft valve 19, and three ventilation grooves are milled on the shaft valve 19, so that the gas can pass through the gap formed by the inner hole and the shaft valve, and then pass through the gas outlet hole 45 and be discharged through the output joint 14. The end of the shaft valve 19 near the cover 30 is almost flush with the side of the push plate 21 near the cover 30, and the end surface contacts the fastening unit 29 (the push plate 21 and the fastening unit 29 are also in plane contact), and the fastening unit 29 is preferably a fastening bolt.
The first cavity 46, the second cavity 47 and the third cavity 48 are respectively provided with a diaphragm I24, a diaphragm II 26 and a diaphragm III 28, two sides of the diaphragm I24 are respectively tightly attached to the second elastic gasket 37 and the third elastic gasket 38, two sides of the diaphragm II 26 are respectively tightly attached to the third elastic gasket 38 and the fourth elastic gasket 39, and the diaphragm III 28 is tightly attached to the fourth elastic gasket 39. And spaces are reserved between the edges of all the membranes and the inner wall of the cavity where the membranes are located. One end of the fastening unit 29, which is close to the cover 30, sequentially penetrates through a through hole in the pressure plate 23, a through hole in the second elastic gasket 37, a through hole in the diaphragm I24, a through hole in the third elastic gasket 38, a through hole in the diaphragm II 26, a through hole in the fourth elastic gasket 39 and a through hole in the diaphragm III 28 and extends into the third cavity 48. In order to fasten the elastic washers and the diaphragms, fastening nuts are mounted on the end of the fastening unit 29 located inside the third cavity 48. It should be noted that the outer diameter of the fastening unit 29 near the end of the shaft valve 19 is larger than the diameter of the through hole at the connection position of the fastening unit and the pressure plate 23, so that the pressure plate 23 can limit the fastening unit 29.
The side walls of the first chamber 46, the second chamber 47 and the third chamber 48 are all provided with an air inlet, and the air inlets are respectively communicated with the first vent hole 32, the second vent hole 33 and the third vent hole 34. Specifically, the method comprises the following steps: as shown in fig. 4, the first vent hole 32 penetrates the valve body 16, the first elastic gasket 20, the first spacer 22, and the second elastic gasket 37 in order from the end surface of the valve body 16 on the side close to the cover 15, and the lower end extends into the second spacer 25 and communicates with the air inlet on the first cavity 46. As shown in fig. 5, the second vent hole 33 penetrates the valve body 16, the first elastic washer 20, the first spacer 22, the second elastic washer 37, the second spacer 25, and the third elastic washer 38 in this order from the end surface of the valve body 16 on the side close to the cover 15, then extends into the third spacer 27, and communicates with the air inlet on the second chamber 47. As shown in fig. 6, the third venting hole 34 sequentially penetrates through the valve body 16, the first elastic gasket 20, the first spacer 22, the second elastic gasket 37, the second spacer 25, the third elastic gasket 38, and the third spacer 27 from the end surface of the valve body 16 close to the cover 15, then extends into the side wall of the sealing cover 30, and is communicated with the air inlet on the third chamber 48.
As an alternative embodiment of the present invention, as shown in fig. 2, the first vent 32, the second vent 33 and the third vent 34 are arranged at intervals, and their portions on the surface of the valve body 16 are respectively communicated with the joint ii 9, the joint iii 10 and the joint iv 11. The joint II 9, the joint III 10 and the joint IV 11 are respectively communicated with a first two-position three-way valve 5, a second two-position three-way valve 6 and a third two-position three-way valve 7 (both are two-position three-way electromagnetic valves) through a second pipeline 40, the three two-position three-way valves are communicated with a three-way pipe 4, one end of the three-way pipe 4 is communicated with the pressure regulating valve 3 through one end of a first pipeline 41, the pressure regulating valve 3 is communicated with the air chamber 2 through a pipeline, and the air chamber 2 is. The other end of the three-way pipe 4 is communicated with a joint I8 through the other end of the first pipeline 41, and the joint I8 is communicated with a fourth vent hole 43 on the valve body 16.
As an optional embodiment of the present invention, an elastic member 18 is sleeved on the periphery of the piston 17, and the elastic member 18 is preferably a spring.
As a preferred embodiment of the present invention, the elastic pad 20 is a rubber pad.
As an optional embodiment of the present invention, a joint v 12 is installed at the air outlet 45, and the joint v 12 is communicated with the output joint 14 through a third pipeline 44. As shown in fig. 7, the air outlet 45 is communicated with an air inlet on a third cavity 52 (a third cavity 52 is arranged on the valve body 16 close to the first elastic gasket 20) on the side of the first elastic gasket 20 close to the cover 15, and meanwhile, the third cavity 52 is communicated with the inner hole 36 of the valve body 16.
As an alternative embodiment of the present invention, the longitudinal sections of the first spacer 22, the second spacer 25 and the third spacer 27 are all ring-shaped. The inner holes of the second spacer 25 and the third spacer 27 are both step-shaped, and the peripheries of the corresponding diaphragm I24 and diaphragm II 26 are also step-shaped.
During the use, compressed air is from input joint 1 input, via the air-vent valve 3 regulation required pressure after, one way compressed air directly gets into wind pressure through joint I8 and transfers whole 13, and another way compressed air divides three routes and passes through first two three-way valve 5, second two three-way valve 6 and third two three-way valve 7 respectively. The first two-position three-way valve 5, the second two-position three-way valve 6 and the third two-position three-way valve 7 are respectively connected with a joint II 9, a joint III 10 and a joint IV 11 on the wind pressure adjusting body 13. The compressed air is output to external equipment through a joint V12 and an output joint 14 after the pressure of the compressed air is adjusted by the air pressure adjusting body 13.
The wind pressure adjusting body 13 works according to the principle that:
when all the electromagnetic valves are de-energized, the contact surface of the piston 17 and the valve body 16 in the wind pressure adjusting body 13 is in a closed state.
When the first two-position three-way valve 5 is powered on, compressed air enters the diaphragm I24 pushed in the first cavity 46 of the wind pressure adjusting body 13 through the connector II 9, the fastening unit 29 moves upwards under the driving of the diaphragm I24 to push the push plate 21 and the shaft valve 19 to open the piston 17, and the compressed air entering from the connector I8 enters the air outlet 45 connected with the connector V12 through the gap between the shaft valve 19 and the valve body 16 and is finally output to external equipment through the output connector 14.
When the second two-position three-way valve 6 and the third two-position three-way valve 7 are electrified, the principle is the same as the above.
And calculating the output pressure of the wind pressure regulating body 13:
let P1-an input pressure;
P2-an output pressure;
A1-inputting an effective pressure area;
A2-an effective valve port pressure area;
A3-the effective area of the diaphragm under pressure;
f-pre-pressure of the spring;
F+P1A1＝P1A3+P2A2
the electricity of different electromagnetic valves is corresponding to A3And thus the output pressure. When the first two-position three-way valve 5 is electrified, A3The effective pressure area of the diaphragm I24; when the second two-position three-way valve 6 is electrified, A3The effective pressure area of the diaphragm II 26; when the third two-position three-way valve 7 is electrified, A3The effective pressure area of the diaphragm III 28. The first two-position three-way valve 5, the second two-position three-way valve 6 and the third two-position three-way valve 7 can be independently electrified or simultaneously electrified, and when the first two-position three-way valve 5 and the second two-position three-way valve 6 are simultaneously electrified, A3The effective pressure area of the diaphragm I24 is added with the effective pressure area of the diaphragm II 26, so that the wind pressure regulator can carry out 7-level wind pressure regulation.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A wind pressure regulator for non-gravity type vehicle retarder, including the casing, install input joint and the output joint on the casing, install air chamber, air-vent valve and the wind pressure of casing and transfer wholly its characterized in that: the wind pressure adjusting body comprises a valve body, a cover body arranged on one side of the valve body and a sealing cover arranged on the other side of the valve body;
a first cavity and a piston are arranged between the cover body and the valve body; the piston can slide in the first cavity along the axial direction of the piston; the first cavity is communicated with a fourth vent hole on the valve body, and the fourth vent hole is communicated with the pressure regulating valve and the air chamber;
the valve body is provided with an inner hole and an air outlet hole which are communicated with each other, and the air outlet hole is communicated with the output connector; a plurality of cavities are formed between the valve body and the sealing cover through a plurality of elastic gaskets and spacer bushes which are alternately arranged; a shaft valve is arranged in a cavity formed by the two elastic gaskets and the spacer bush which are close to the valve body; one end of the shaft valve, which is close to the cover body, sequentially penetrates through the elastic gasket close to the valve body and the inner hole in the valve body to extend into the first cavity, and the end part of the shaft valve is connected with the piston; one end of the shaft valve, which is close to the sealing cover, is in surface contact with the fastening unit, and one end of the fastening unit, which is close to the sealing cover, sequentially penetrates through the plurality of elastic gaskets in the middle to enter one cavity body which is close to the sealing cover; a membrane is sleeved on the position of the fastening unit in each cavity; all the diaphragms are spaced from the corresponding inner side walls of the cavity; each cavity provided with the diaphragm is communicated with one vent hole, and all the vent holes are arranged on the valve body at intervals; the vent holes of all the cavities provided with the membranes are communicated with the air chamber through a two-position three-way valve.
2. The wind pressure regulator for a non-gravity vehicle retarder according to claim 1, wherein: and an elastic piece is sleeved on the periphery of the piston.
3. The wind pressure regulator for a non-gravity vehicle retarder according to claim 2, wherein: the elastic piece is a spring; and a third cavity is arranged on one side of the valve body close to the elastic gasket, and is communicated with the air outlet hole and the inner hole on the valve body.
4. The wind pressure regulator for a non-gravity vehicle retarder according to claim 1, wherein: a push plate and a pressure plate are arranged in a cavity formed by the two elastic gaskets and the spacer bush close to the valve body, and a shaft valve is arranged on the push plate; the pressing plate is sleeved on the fastening unit and limits the fastening unit.
5. The wind pressure regulator for a non-gravity vehicle retarder according to claim 1, wherein: except for the one closest to the cover, the other membrane is attached on both sides to its immediately adjacent resilient pad.
6. The wind pressure regulator for a non-gravity vehicle retarder according to any one of claims 1 to 5, wherein: the elastic gasket is a rubber gasket.
7. The wind pressure regulator for a non-gravity vehicle retarder according to any one of claims 1 to 5, wherein: the number of the elastic gaskets is 4, and the number of the spacer bushes is 3.
8. The wind pressure regulator for a non-gravity vehicle retarder according to any one of claims 1 to 5, wherein: the two-position three-way valve is a two-position three-way electromagnetic valve; the vent hole corresponding to each cavity provided with the diaphragm extends to the outer surface of the valve body, and each vent hole is connected with a two-position three-way valve through a pipeline; all the two-position three-way valves are communicated with a three-way pipe, and the three-way pipe is arranged on a first pipeline; the pipe section of the first pipeline, which is positioned on one side of the three-way pipe, is communicated with the fourth through hole, and the pipe section of the first pipeline, which is positioned on the other side of the three-way pipe, is sequentially communicated with the pressure regulating valve and the air chamber.
9. The wind pressure regulator for a non-gravity vehicle retarder according to claim 8, wherein: the number of the cavities provided with the membranes is 3, and the number of the vent holes and the number of the two-position three-way valves corresponding to the cavities are 3.
10. The wind pressure regulator for a non-gravity vehicle retarder according to any one of claims 1 to 5, wherein: the longitudinal section of the spacer bush is annular; the fastening unit is a fastening bolt; the cover body and the valve body, the valve body and the elastic gasket adjacent to the valve body, the two adjacent elastic gaskets and the seal cover and the elastic gasket adjacent to the seal cover are all fastened through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921402688.0U CN211252550U (en) | 2019-08-27 | 2019-08-27 | Wind pressure regulator for non-gravity vehicle retarder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921402688.0U CN211252550U (en) | 2019-08-27 | 2019-08-27 | Wind pressure regulator for non-gravity vehicle retarder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422156A (en) * | 2019-08-27 | 2019-11-08 | 天津铁路信号有限责任公司 | Multistage manometer regulator and its application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422156A (en) * | 2019-08-27 | 2019-11-08 | 天津铁路信号有限责任公司 | Multistage manometer regulator and its application |
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