CN212004466U - Compact structure's urgent valve body of high strength - Google Patents
Compact structure's urgent valve body of high strength Download PDFInfo
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- CN212004466U CN212004466U CN202020514856.1U CN202020514856U CN212004466U CN 212004466 U CN212004466 U CN 212004466U CN 202020514856 U CN202020514856 U CN 202020514856U CN 212004466 U CN212004466 U CN 212004466U
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- straight hole
- brake pipe
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Abstract
The utility model discloses a high-strength emergency valve body with compact structure, which comprises a valve body, wherein a brake pipe connecting seat is arranged at the side end of the valve body, a diaphragm mounting cavity, a piston mounting cavity, a valve straight hole and an air release valve mounting cavity are arranged in the valve body, an emergency chamber communicating pipeline and a brake pipe hole are arranged on the brake pipe connecting seat, the outer diameter of the diaphragm mounting cavity is larger than that of the piston mounting cavity, the valve straight hole is composed of a first straight hole, a second straight hole and a third straight hole, the inner diameters of the first straight hole and the second straight hole are sequentially reduced from top to bottom, and the brake pipe hole is communicated with the side end of the first straight hole and the side end of the second straight hole; an air exhaust cavity communicated with the inner wall of the other side of the air release valve installation cavity and a return pipeline communicated with the brake pipe hole are also arranged in the valve body. Diaphragm mounting chamber and piston mounting chamber on traditional emergency valve are a whole, and is comparatively troublesome during the installation, can't play the effect of location, this the utility model discloses carry out the undergauge with the two, can effectually play the effect of injecing to the diaphragm.
Description
Technical Field
The utility model belongs to the technical field of the emergency valve, especially, relate to a compact structure's urgent valve body of high strength.
Background
The emergency air release valve mainly comprises a valve body, a diaphragm plate, a piston, a stabilizing spring, a sandwich valve, a guide rod, a firewood adding valve spring, a push rod, a microswitch, a valve cover and the like. The function is as follows: in order to accelerate the air exhaust speed of the train pipe, shorten the air exhaust time, shorten the braking distance and prevent the misoperation of moving a brake handle when a driver does not stop stably during emergency braking, thereby causing the accident of train hook breakage; in addition, when the train is separated, the air charging passage and the power source can be automatically cut off to prevent the train from being broken, and during emergency braking, the device also plays a role in increasing the additional flow velocity of the pressure of the train pipe, so that the emergency braking of the front train and the rear train is close to the same.
The tightness of each cavity in the valve body of some existing emergency vent valves is weak and loose, so that the structural strength of the valve body is poor, and after the valve body is used for a long time, the valve body is easy to damage and cracks appear.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the technical problem who exists to the aforesaid, provide a compact structure's urgent valve body of high strength.
The purpose of the utility model is realized like this: the utility model provides a compact structure's urgent valve body of high strength, includes the valve body, its characterized in that: the side end of the valve body is provided with a brake pipe connecting seat, a diaphragm mounting cavity, a piston mounting cavity, a valve straight hole and a blow-off valve mounting cavity are formed in the valve body, the diaphragm mounting cavity, the piston mounting cavity, the valve straight hole and the blow-off valve mounting cavity are sequentially communicated with one another from top to bottom, an emergency room communicating pipeline and a brake pipe hole are formed in the brake pipe connecting seat, the outer diameter of the diaphragm mounting cavity is larger than that of the piston mounting cavity, the valve straight hole is formed by a first straight hole, a second straight hole and a third straight hole, the inner diameters of the first straight hole, the second straight hole and the third straight hole are sequentially reduced from top to bottom, the brake pipe hole is communicated with the side end of the first straight hole and the side end of the second straight hole, and the inner side wall of; an air exhaust cavity communicated with the inner wall of the other side of the air release valve installation cavity and a backflow pipeline communicated with the brake pipe hole are further arranged in the valve body, and ports of the air exhaust cavity and the backflow pipeline are arranged downwards.
By adopting the technical scheme, the communication pipeline of the emergency chamber is used for being connected with the emergency chamber, and the brake pipe hole on the brake pipe connecting seat is used for being externally connected with the brake pipe; in order to improve the tightness of the valve body, a diaphragm mounting cavity, a piston mounting cavity, a valve straight hole and a blow-off valve mounting cavity are sequentially arranged in the valve body from top to bottom;
the diaphragm mounting cavity and the piston mounting cavity on the traditional emergency valve are integrated, so that the installation is troublesome, and the positioning effect cannot be realized;
the valve straight hole is used for installing a piston rod, in order to axially limit the piston rod, the valve straight hole is arranged into a first straight hole, a second straight hole and a third straight hole, the inner diameter of the first straight hole, the second straight hole and the third straight hole are sequentially reduced, after the piston rod is installed in the valve straight hole, the piston rod can move downwards in an emergency braking state of the emergency valve, the piston rod can be effectively limited through the outer edge wall of the upper port of the third straight hole, and excessive discharge of gas in the emergency chamber to an emergency chamber communicating pipeline due to the fact that the downward movement amplitude of a diaphragm is too large in the emergency braking state of the emergency valve is avoided; in order to increase the inflow efficiency of gas between the brake pipe hole and the straight hole, the brake pipe hole is communicated with the first straight hole and the second straight hole;
the backflow pipeline is used for communicating the air release valve mounting cavity with the brake pipe hole to play a backflow role, and when the emergency valve is in an inflation relieving state, gas in the brake pipe hole can flow back into the air release valve mounting cavity; when the emergency valve is in an emergency braking state, the air in the brake pipe hole can be discharged outwards through the exhaust cavity.
The utility model discloses further set up to: the emergency chamber communicating pipeline is of an L-shaped structure, an opening of the upper end of the emergency chamber communicating pipeline is located on the upper end face of the valve body, the other opening of the emergency chamber communicating pipeline is located on the side end face of the brake pipe connecting seat, and a first mounting groove which is radially and outwards formed and used for mounting a sealing ring is formed in the upper end port of the emergency chamber communicating pipeline.
Through adopting above-mentioned technical scheme, set up first mounting groove on the last port of emergency room intercommunication pipeline, through pack into the sealing washer in first mounting groove in order to improve its and the emergency valve upper cover between sealing performance, avoid emergency valve to aerify the port of emergency room intercommunication pipeline and appear leaking gas when alleviating the state.
The utility model discloses further set up to: and the inner wall of the brake pipe hole is provided with an installation baffle ring which is arranged inwards in the radial direction, and the installation baffle ring is close to the outer port of the brake pipe hole.
Through adopting above-mentioned technical scheme, set up and keep off the ring and can play spacing effect to external brake pipe, avoid the brake pipe embedding too deeply, lead to damaging.
The utility model discloses further set up to: and a second mounting groove which is radially and outwards arranged and used for mounting an exhaust hood is formed in the lower port of the exhaust cavity, and a third mounting groove which is radially and outwards arranged and used for mounting a sealing ring is formed in the lower port of the backflow pipeline.
By adopting the technical scheme, the lower port of the exhaust cavity is provided with the second mounting groove, and the exhaust hood is mounted through the second mounting groove so as to improve the mounting air tightness between the exhaust cavity and the exhaust hood; set up the third mounting groove on return line's lower port, through pack into the sealing washer in the third mounting groove in order to improve its and the emergency valve lid between sealing performance.
The utility model discloses further set up to: the front end and the rear end of the brake pipe connecting seat are respectively provided with a first positioning lug plate, and the first positioning lug plate is provided with a first mounting hole for embedding a bolt in the vertical direction; the upper end of the valve body is provided with second mounting lug plates which are positioned on the front side and the rear side of the port of the diaphragm mounting cavity, second mounting holes for bolts to be embedded in the vertical direction are formed in the second mounting lug plates, and third mounting holes for bolts to be embedded in the vertical direction are formed in the periphery of the bottom of the valve body.
Through adopting above-mentioned technical scheme, the upper end that is provided with first location otic placode, valve body on the brake pipe connecting seat is provided with second location otic placode, fixes first location otic placode, brake pipe connecting seat and second locating plate, valve body through the bolt, the effectual installation strength who improves brake pipe connecting seat and valve body.
The utility model discloses further set up to: the surface of the valve body is plated with a nickel layer, and the thickness of the nickel layer is 8-25 mu m.
By adopting the technical scheme, the surface of the cover body is plated with the nickel layer by an electrolytic or chemical method, so that the wear resistance, the mechanical strength, the acid resistance, the corrosion resistance and other properties of the surface of the valve body can be effectively improved.
The utility model has the advantages that: 1. the diaphragm mounting cavity and the piston mounting cavity on the traditional emergency valve are integrated, so that the installation is troublesome, and the positioning effect cannot be realized; 2. the valve straight hole is used for installing a piston rod, and is provided with a first straight hole, a second straight hole and a third straight hole with sequentially reduced inner diameters in order to axially limit the piston rod, so that the piston rod can move downwards in an emergency braking state of the emergency valve, and the piston rod can be effectively limited by the outer edge wall of the upper port of the third straight hole, so that excessive discharge of gas in an emergency chamber to an emergency chamber communicating pipeline due to overlarge downward movement amplitude of a diaphragm plate in the emergency braking state of the emergency valve is avoided; 3. the surface of the cover body is plated with a nickel layer, so that the wear resistance, the mechanical strength, the acid resistance, the corrosion resistance and other properties of the surface of the valve body can be effectively improved.
Drawings
Fig. 1 is a schematic view of the internal structure of the present invention;
fig. 2 is a schematic side view of the present invention;
fig. 3 is a schematic bottom view of the present invention;
the reference numbers in the figures are: 1. a valve body; 11. a diaphragm plate mounting cavity; 12. a piston mounting cavity; 13. a valve straight hole; 131. a first straight hole; 132. a second straight hole; 133. a third straight hole; 14. a vent valve mounting cavity; 15. an exhaust chamber; 151. a second mounting groove; 16. a return line; 161. a third mounting groove; 17. a second mounting lug; 171. a second mounting hole; 18. a third mounting hole; 2. a brake pipe connecting seat; 21. the emergency chamber is communicated with a pipeline; 211. a first mounting groove; 22. a brake pipe hole; 221. installing a baffle ring; 23. a first positioning ear plate; 231. a first mounting hole.
Detailed Description
In order to make the technical solutions in the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings:
a compact high-strength emergency valve body, as shown in figure 1, is characterized in that a nickel layer is plated on the surface of a valve body 1 through an electrolytic or chemical method, the thickness of the nickel layer is 8-25 μm, and the wear resistance, the mechanical strength, the acid resistance, the corrosion resistance and other properties of the surface of the valve body 1 can be effectively improved through the nickel layer.
As shown in fig. 1, 2 and 3, a brake pipe connecting seat 2 is arranged at a side end of a valve body 1, a diaphragm mounting cavity 11, a piston mounting cavity 12, a valve straight hole 13 and an air bleed valve mounting cavity 14 which are sequentially communicated with each other from top to bottom are formed in the valve body 1, an emergency chamber communicating pipeline 21 and a brake pipe hole 22 are formed in the brake pipe connecting seat 2, the outer diameter of the diaphragm mounting cavity 11 is larger than the outer diameter of the piston mounting cavity 12, the valve straight hole 13 is formed by a first straight hole 131, a second straight hole 132 and a third straight hole 133 which are sequentially reduced from top to bottom in inner diameter, the brake pipe hole 22 is communicated with a side end of the first straight hole 131 and a side end of the second straight hole 132, and a side inner wall of the air bleed valve mounting cavity 14 and a lower port of the third straight hole 133 are crossed by an arc angle; an exhaust cavity 15 communicated with the inner wall of the other side of the exhaust valve installation cavity 14 and a return pipeline 16 communicated with the brake pipe hole 22 are further arranged in the valve body 1, and ports of the exhaust cavity 15 and the return pipeline 16 are arranged downwards.
The emergency chamber communication pipeline 21 is used for being connected with an emergency chamber, and the brake pipe hole 22 on the brake pipe connecting seat 2 is used for being externally connected with a brake pipe; in order to improve the tightness of the valve body 1, a diaphragm mounting cavity 11, a piston mounting cavity 12, a valve straight hole 13 and a blow-off valve mounting cavity 14 are sequentially arranged in the valve body 1 from top to bottom;
the diaphragm mounting cavity 11 and the piston mounting cavity 12 on the traditional emergency valve are integrated, so that the installation is troublesome, and the positioning effect cannot be realized;
the valve straight hole 13 is used for installing a piston rod, in order to axially limit the piston rod, the valve straight hole 13 is provided with a first straight hole 131, a second straight hole 132 and a third straight hole 133, the inner diameter of the first straight hole, the second straight hole and the third straight hole are sequentially reduced, after the piston rod is installed in the valve straight hole 13, the piston rod can move downwards in an emergency braking state of the emergency valve, the piston rod can be effectively limited through the outer edge wall of the upper port of the third straight hole 133, and excessive discharge of gas in the emergency chamber to the emergency chamber communicating pipeline 21 due to overlarge downward movement amplitude of a diaphragm in the emergency braking state of the emergency valve is avoided; in order to increase the inflow efficiency of gas between the brake pipe hole 22 and the straight hole, the brake pipe hole 22 is communicated with the first straight hole 131 and the second straight hole 132;
the backflow pipeline 16 is used for communicating the air release valve mounting cavity 14 with the brake pipe hole 22, so as to play a role of backflow, and when the emergency valve is in an inflation relieving state, gas in the brake pipe hole 22 can flow back into the air release valve mounting cavity 14; when the emergency valve is in an emergency braking state, the air in the brake pipe hole 22 can be discharged outwards through the exhaust cavity 15.
Preferably, as shown in fig. 1, the emergency chamber communication pipe 21 is in an L-shaped structure, an upper end opening of the emergency chamber communication pipe is located on an upper end surface of the valve body 1, another opening of the emergency chamber communication pipe is located on a side end surface of the brake pipe connecting seat 2, and a first mounting groove 211 for mounting a seal ring is radially and outwardly formed in an upper end port of the emergency chamber communication pipe 21.
Set up first mounting groove 211 on the upper port of emergency room intercommunication pipeline 21, through pack into the sealing washer in first mounting groove 211 in order to improve its and the emergency valve upper cover between sealing performance, avoid emergency valve to appear leaking gas when aerifing the state of alleviating emergency room intercommunication pipeline 21's port.
Preferably, as shown in fig. 1, the inner wall of the brake pipe hole 22 is provided with a radially inward mounting baffle ring 221, and the mounting baffle ring 221 is close to the outer port of the brake pipe hole 22.
The stop ring is arranged to play a limiting role in the external brake pipe, and the brake pipe is prevented from being embedded too deeply and being damaged.
Preferably, as shown in fig. 1, a second mounting groove 151 for mounting the exhaust hood is formed on the lower end of the exhaust chamber 15, and a third mounting groove 161 for mounting the seal ring is formed on the lower end of the return duct 16.
A second mounting groove 151 is formed in the lower end of the exhaust cavity 15, and the exhaust hood is mounted through the second mounting groove 151, so that mounting air tightness between the exhaust hood and the exhaust cavity is improved; a third installation groove 161 is formed at a lower end of the return duct 16, and a packing is installed in the third installation groove 161 to improve sealing performance between the third installation groove 161 and the relief valve cover of the emergency valve.
Preferably, as shown in fig. 2 and 3, the front end and the rear end of the brake pipe connecting base 2 are respectively provided with a first positioning ear plate 23, and the first positioning ear plate 23 is provided with a first mounting hole 231 for inserting a bolt in the vertical direction; the upper end of the valve body 1 is provided with second mounting lug plates 17 which are positioned at the front side and the rear side of the port of the diaphragm mounting cavity 11, the second mounting lug plates 17 are provided with second mounting holes 171 for bolts to be embedded along the vertical direction, and the periphery of the bottom of the valve body 1 is also provided with third mounting holes 18 for bolts to be embedded along the vertical direction.
Be provided with first location otic placode 23 on brake pipe connecting seat 2, the upper end of valve body 1 is provided with second location otic placode, fixes first location otic placode 23, brake pipe connecting seat 2 and second locating plate, valve body 1 through the bolt, the effectual installation intensity that improves brake pipe connecting seat 2 and valve body 1.
The above embodiments are only preferred embodiments of the present invention, not all embodiments, and other embodiments obtained based on the above embodiments by those skilled in the art without any creative work shall fall within the protection scope of the present invention, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (6)
1. The utility model provides a compact structure's urgent valve body of high strength, includes valve body (1), its characterized in that: a brake pipe connecting seat (2) is arranged at the side end of the valve body (1), a diaphragm mounting cavity (11), a piston mounting cavity (12), a valve straight hole (13) and a vent valve mounting cavity (14) which are sequentially communicated with each other from top to bottom are arranged in the valve body (1), an emergency room communicating pipeline (21) and a brake pipe hole (22) are arranged on the brake pipe connecting seat (2), the outer diameter of the diaphragm mounting cavity (11) is larger than that of the piston mounting cavity (12), the valve straight hole (13) is composed of a first straight hole (131), a second straight hole (132) and a third straight hole (133) which are sequentially reduced in inner diameter from top to bottom, the brake pipe hole (22) is communicated with the side end of the first straight hole (131) and the side end of the second straight hole (132), the side inner wall of the air release valve installation cavity (14) and the lower port of the third straight hole (133) are crossed by an arc angle; an exhaust cavity (15) communicated with the inner wall of the other side of the exhaust valve installation cavity (14) and a backflow pipeline (16) communicated with the brake pipe hole (22) are further arranged in the valve body (1), and ports of the exhaust cavity (15) and the backflow pipeline (16) are arranged downwards.
2. A compact, high strength emergency valve body as claimed in claim 1, wherein: the emergency chamber communicating pipeline (21) is of an L-shaped structure, an opening at the upper end of the emergency chamber communicating pipeline is located on the upper end face of the valve body (1), the other opening of the emergency chamber communicating pipeline is located on the side end face of the brake pipe connecting seat (2), and a first mounting groove (211) which is radially and outwards formed and used for mounting a sealing ring is formed in the upper end port of the emergency chamber communicating pipeline (21).
3. A compact, high strength emergency valve body as claimed in claim 1, wherein: the inner wall of the brake pipe hole (22) is provided with an installation retaining ring (221) which is arranged inwards in the radial direction, and the installation retaining ring (221) is close to the outer port of the brake pipe hole (22).
4. A compact, high strength emergency valve body as claimed in claim 1, wherein: and a second mounting groove (151) which is radially and outwards formed and used for mounting an exhaust hood is formed in the lower port of the exhaust cavity (15), and a third mounting groove (161) which is radially and outwards formed and used for mounting a sealing ring is formed in the lower port of the backflow pipeline (16).
5. A compact high strength emergency valve body according to any one of claims 1 to 4, wherein: the front end and the rear end of the brake pipe connecting seat (2) are respectively provided with a first positioning lug plate (23), and the first positioning lug plate (23) is provided with a first mounting hole (231) for embedding a bolt in the vertical direction; the upper end of valve body (1) is provided with and is located second installation otic placode (17) of both sides around diaphragm mounting chamber (11) port, be provided with on second installation otic placode (17) along vertical direction supply second mounting hole (171) of bolt embedding, valve body (1) bottom still is provided with all around along vertical direction supply third mounting hole (18) of bolt embedding.
6. A compact, high strength emergency valve body as claimed in claim 5, wherein: the surface of the valve body (1) is plated with a nickel layer, and the thickness of the nickel layer is 8-25 mu m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020514856.1U CN212004466U (en) | 2020-04-09 | 2020-04-09 | Compact structure's urgent valve body of high strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020514856.1U CN212004466U (en) | 2020-04-09 | 2020-04-09 | Compact structure's urgent valve body of high strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212004466U true CN212004466U (en) | 2020-11-24 |
Family
ID=73414467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020514856.1U Active CN212004466U (en) | 2020-04-09 | 2020-04-09 | Compact structure's urgent valve body of high strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212004466U (en) |
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2020
- 2020-04-09 CN CN202020514856.1U patent/CN212004466U/en active Active
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