CN214028590U - Large-flow relay valve - Google Patents

Abstract

The utility model relates to a large-traffic relay valve, it includes valve body and lower valve body, it dismantles to connect on the valve body down to go up the valve body, it is close to or keeps away from down the direction of valve body and slides and be connected with the piston to go up in the valve body along last valve body, be provided with down the spacing section of thick bamboo of direction of valve body to piston in the valve body down, be provided with in the spacing section of thick bamboo and open and close the disk seat, open and close the disk seat and include air outlet means and headstock gear, headstock gear sets up on air outlet means, headstock gear slides and connects in a spacing section of thick bamboo, be provided with the barrier plate that blocks headstock gear on the spacing section of thick bamboo, be provided with on the air outlet means and be used for opening and close the spacing connecting piece of disk seat when conflicting with the barrier plate, the connecting piece is located the valve body outside down. This application has the effect that makes things convenient for operating personnel will open and close the disk seat and change.

Description

Large-flow relay valve

Technical Field

The application relates to the field of automobile brake control systems, in particular to a large-flow relay valve.

Background

The relay valve belongs to a part of an automobile air brake system. The air inlet of the relay valve is communicated with the air storage cylinder, and the air outlet is connected with the brake air chamber. When the brake pedal is stepped on, the output air pressure of the brake valve is input as the control pressure of the relay valve, and the air inlet valve is pushed open under the action of the control pressure, so that the compressed air directly enters the brake air chamber from the air storage cylinder through the air inlet without flowing through the brake valve, the inflation pipeline of the brake air chamber is greatly shortened, and the inflation process of the air chamber is accelerated.

The chinese patent with application publication No. CN104192135A discloses a delong relay valve, which comprises an upper valve body and a lower valve body which are connected by bolts, wherein a piston cavity is arranged inside the upper valve body, a guide post protruding downwards is arranged in the middle of the piston cavity, a piston is arranged in the piston cavity, a guide sleeve protruding downwards is arranged in the middle of the piston, a guide rod is arranged inside the guide sleeve, a sealing structure is arranged between the guide rod and the guide sleeve, an annular convex edge is also arranged on the lower surface of the piston, and a command air source interface communicated with the piston cavity is arranged on the upper part of the upper valve body. The invention has the effect of improving the brake response speed.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the skeleton, disk seat and the valve spring of valve need be changed, need twist out four bolts on last valve body and the lower valve body, open last valve body and lower valve body, take out jump ring and blocking the sealing ring in proper order afterwards, take out the skeleton, disk seat and the valve spring of valve at last, the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the replacement of the opening and closing valve seat by an operator, the application provides the large-flow relay valve.

The application provides a large-traffic relay valve adopts following technical scheme:

the utility model provides a large-traffic relay valve, includes valve body and lower valve body, it connects on valve body down to go up the valve body dismantlement, it is connected with the piston to go up to slide along the direction that last valve body is close to or keeps away from valve body down in the valve body, be provided with down the spacing section of thick bamboo of direction of valve body to piston down in the valve body, be provided with the start-stop valve seat in the spacing section of thick bamboo, the start-stop valve seat includes air outlet means and headstock gear, headstock gear sets up on air outlet means, headstock gear slides and connects in spacing section of thick bamboo, be provided with the barrier plate that blocks headstock gear on the spacing section of thick bamboo, be provided with on the air outlet means and be used for opening and close the spacing connecting piece of disk seat when opening and close disk seat and barrier plate conflict, the connecting piece is located the valve body outside down.

Through adopting above-mentioned technical scheme, when the disk seat is opened and close to needs follow the valve body in the time of dismantling out down, operating personnel only need through the connecting piece in the outside, will open and close the disk seat and slide out from spacing section of thick bamboo, need not twist out four bolts on last valve body and the lower valve body, will open and close the disk seat again and dismantle out in the lower valve body, make things convenient for operating personnel will open and close the disk seat and dismantle out in the lower valve body.

Optionally, the connecting piece includes jump ring and joint ring, the setting of joint ring is opening and close on the disk seat, spacing section of thick bamboo is kept away from the one end of last valve body and is seted up first joint annular, set up the second joint annular that supplies the jump ring to place on the groove lateral wall of first joint annular, the tank bottom of jump ring and first joint annular forms the space that supplies the joint ring to place.

By adopting the technical scheme, when the opening and closing valve seat needs to be disassembled, only the clamp spring needs to be taken out of the second clamping ring groove, and then the opening and closing valve seat is slidingly moved out of the limiting cylinder, so that the structure is simple, and the operation is convenient; when the opening and closing valve seat is required to be installed in the lower valve body, the opening and closing valve seat only needs to be firstly slid into the limiting cylinder, the clamping ring is placed in the first clamping ring groove, then the clamping spring is placed in the second clamping ring groove, and the opening and closing valve seat is fixedly installed on the lower valve body.

Optionally, a sealing ring groove is formed in the side wall of the opening and closing valve seat, and a sealing ring is arranged in the sealing ring groove.

Through adopting above-mentioned technical scheme, the leakproofness between headstock gear and the spacing section of thick bamboo has been improved to the sealing ring, when using, has reduced and has leaked through headstock gear and spacing section of thick bamboo with the gas in the lower valve body.

Optionally, the sealing ring is annular.

Through adopting above-mentioned technical scheme, the sealing ring is when improving the leakproofness between headstock gear and the spacing section of thick bamboo, has also reduced the friction between sealing ring and the spacing section of thick bamboo when headstock gear takes out to a certain extent, makes things convenient for operating personnel's operation.

Optionally, the connecting piece includes thread bush and drive thread bush pivoted drive handle, first joint annular has been seted up to the one end that the valve body was kept away from to a spacing section of thick bamboo, thread bush threaded connection is on the cell wall of first joint annular, form the space that supplies to open and close the disk seat joint between the cell wall that thread bush and first joint annular are close to last valve body.

Through adopting above-mentioned technical scheme, when will opening and close the disk seat installation in the valve body down, slide earlier and open and close the disk seat and connect into a spacing section of thick bamboo, later operating personnel through the drive handle with thread bush threaded connection in a spacing section of thick bamboo, make the thread bush will open and close the disk seat and support tightly on first joint annular, will open and close the disk seat and install the leakproofness between disk seat and the spacing section of thick bamboo of opening and close in the valve body down.

Optionally, set up two joint grooves that extend along thread bush axis direction on the thread bush inner wall, the drive handle includes the drive tube and sets up the joint board on the drive tube, the joint board is used for sliding and connects in the joint inslot.

Through adopting above-mentioned technical scheme, when will opening and close the disk seat and take out from lower valve body, operating personnel will drive the pipe box and establish on air outlet means, later with the joint board connection of sliding in the joint inslot, operating personnel makes things convenient for operating personnel's installation with thread bush threaded connection in spacing section of thick bamboo through rotating the joint board.

Optionally, a rubber ring is arranged on the threaded sleeve, and the rubber ring is located between the threaded sleeve and the opening and closing device.

Through adopting above-mentioned technical scheme, when operating personnel screwed up the thread bush, the rubber ring on the thread bush supports tightly with headstock gear, has further increased the leakproofness between headstock gear and the thread bush.

Optionally, a guide chamfer is arranged between the surface of the limiting cylinder far away from the upper valve body and the inner side wall of the limiting cylinder.

Through adopting above-mentioned technical scheme, when will opening and close the disk seat and slide and connect in spacing section of thick bamboo, the direction chamfer leads opening and close the disk seat, makes things convenient for operating personnel's installation.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the air outlet device and the opening and closing device are installed together, and the air outlet device is installed in the limiting cylinder through the connecting piece positioned outside the lower valve body, so that an operator can conveniently detach the opening and closing valve seat;

2. through the annular sealing ring, the sealing performance between the opening and closing valve seat and the limiting cylinder is improved, and meanwhile, the opening and closing valve seat is convenient for operators to slide out of the limiting cylinder;

3. the sealing performance between the opening and closing valve seat and the limiting cylinder is improved when the opening and closing valve seat is arranged on the limiting cylinder through the threaded sleeve and the driving handle.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present application.

Fig. 2 is a cross-sectional view taken in the direction of a-a in fig. 1 of the present application.

Fig. 3 is a cross-sectional view in the direction B-B in fig. 1 of the present application.

Fig. 4 is a schematic structural view of a connector according to a second embodiment of the present application.

Reference numerals: 1. an upper valve body; 11. a first chamber; 12. a command gas source interface; 13. a second chamber; 14. a first vent; 15. a third chamber; 16. a second vent; 2. a lower valve body; 21. a bolt; 22. a piston; 23. a limiting cylinder; 231. a first snap ring groove; 232. a second clamping ring groove; 24. guiding and chamfering; 3. opening and closing the valve seat; 31. an air outlet device; 311. a breather pipe; 312. a support ring plate; 313. a rubber cone; 314. a rubber dust cover; 315. a vent channel; 32. an opening and closing device; 321. installing a pipe; 322. a slip ring; 323. a return spring; 33. a sliding ring groove; 34. a blocking ring; 35. sealing the ring groove; 36. a seal ring; 4. a connecting member; 41. a clamp spring; 42. a snap ring; 43. a threaded sleeve; 44. a drive handle; 441. a drive tube; 442. a clamping and connecting plate; 45. a clamping groove; 46. a rubber ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a large-flow relay valve.

The first embodiment is as follows:

referring to fig. 1, a large-traffic relay valve includes valve body 1 and lower valve body 2, it links to each other through four bolts 21 to go up valve body 1 and lower valve body 2, it is connected with piston 22 to go up to slide along the direction that last valve body 1 is close to or keeps away from lower valve body 2 in the valve body 1, piston 22, the internal surface that goes up valve body 1 and deviates from lower valve body 2 and the interior lateral wall of last valve body 1 form first cavity 11, instruction air source interface 12 with first cavity 11 intercommunication is seted up to last valve body 1 upper surface, an organic whole is connected with spacing section of thick bamboo 23 on the diapire in the lower valve body 2, lower valve body 2 is worn out to the one end that last valve body 1 was kept away from to spacing section of thick bamboo 23, spacing section of thick bamboo 23 axis extends along the direction of lower valve body 2 to last valve body 1.

Referring to fig. 1 and 2, an opening and closing valve seat 3 is arranged in the limiting cylinder 23, the opening and closing valve seat 3 comprises an air outlet device 31 and an opening and closing device 32, the air outlet device 31 comprises an air vent pipe 311, a supporting ring plate 312, a rubber cone 313 and a rubber dust cap 314, the supporting ring plate 312 is integrally connected to the inner wall of the air vent pipe 311, an air vent groove 315 extending along the axial direction of the air vent pipe 311 is formed in the inner wall of the air vent pipe 311, the air vent groove 315 penetrates through the air vent pipe 311 along the direction away from the upper valve body 1, the rubber cone 313 is integrally connected to the rubber dust cap 314, the rubber cone 313 penetrates into the supporting ring plate 312, and therefore the rubber dust cap 314 is installed on the supporting ring plate 312.

Referring to fig. 2 and 3, the opening and closing device 32 includes a mounting pipe 321, a sliding ring 322 and a return spring 323, the mounting pipe 321 is sleeved on the vent pipe 311, and the mounting pipe 321 is integrally connected to the outer side wall of the vent pipe 311; the sliding ring 322 is horizontally arranged and positioned between the upper valve body 1 and the lower valve body 2, the sliding ring 322 is sleeved on the vent pipe 311, the surface of the sliding ring 322 close to the lower valve body 2 is provided with a sliding ring groove 33, and the outer side wall of the vent pipe 311 is abutted against the outer groove wall of the sliding ring groove 33; the return spring 323 is sleeved on the vent pipe 311, one end of the return spring 323 is abutted against the bottom of the sliding ring groove 33, and the other end of the return spring 323 is abutted against the vent pipe 311.

Referring to fig. 2 and 3, one end of the limiting cylinder 23 close to the upper valve body 1 is fixedly connected with a horizontally arranged blocking plate, the blocking plate is a blocking ring 34, and the vent pipe 311 is connected in the limiting cylinder 23 in a sliding manner; the stop ring 34 is positioned on one side of the sliding ring 322 facing the upper valve body 1, the stop ring 34 is abutted against the sliding ring 322, a second chamber 13 is formed between the vent pipe 311 and the limiting cylinder 23, a first vent 14 is arranged on the side wall of the lower valve body 2, and the first vent 14 is communicated with the second chamber 13; a third chamber 15 is formed between the lower valve body 2 and the piston 22; two second vent holes 16 are formed in the side wall of the lower valve body 2, and the two second vent holes 16 are communicated with the third chamber 15.

Referring to fig. 2 and 3, a guide chamfer 24 is arranged between the surface of the limiting cylinder 23 far away from the upper valve body 1 and the inner side wall of the limiting cylinder 23; spacing section of thick bamboo 23 is kept away from the one end of going up valve body 1 and has been seted up first joint annular 231, second joint annular 232 has been seted up on the groove lateral wall of first joint annular 231, breather pipe 311 links to each other with spacing section of thick bamboo 23 through connecting piece 4, connecting piece 4 includes jump ring 41 and joint ring 42, joint ring 42 an organic whole is connected on breather pipe 311 lateral wall, joint ring 42 is close to the bottom of the surface of going up valve body 1 and first joint annular 231 and is inconsistent, jump ring 41 is placed in second joint annular 232, jump ring 41 is inconsistent with joint ring 42.

Referring to fig. 2 and 3, a sealing ring groove 35 is formed on a side surface of the vent pipe 311, an annular sealing ring 36 is sleeved on the vent pipe 311, and the sealing ring 36 is located in the sealing ring groove 35.

The implementation principle of a large-flow relay valve in the first embodiment of the application is as follows: when the vent pipe 311 needs to be detached from the limiting cylinder 23, the snap spring 41 only needs to be detached from the second snap ring groove 232, and then the vent pipe 311 slides out of the limiting cylinder 23, so that the opening and closing valve seat 3 is detached from the lower valve body 2, and operation of an operator is facilitated.

Example two:

the embodiment of the application also discloses a large-flow relay valve, which is different from the embodiment of the first embodiment in that, referring to fig. 4, the connecting piece 4 comprises a threaded sleeve 43 and a driving handle 44, the driving handle 44 comprises a driving pipe 441 and two clamping plates 442, the outer side wall of the threaded sleeve 43 is in threaded connection with the groove side wall of the second clamping ring groove 232, and the surface of the threaded sleeve 43, which is close to the upper valve body 1, is abutted against the surface of the clamping ring 42, which is away from the upper valve body 1; two clamping grooves 45 extending along the direction from the upper valve body 1 to the lower valve body 2 are formed in the inner side wall of the threaded sleeve 43, the two clamping grooves 45 are arranged oppositely, the clamping grooves 45 penetrate through the threaded sleeve 43 along the direction from the upper valve body 1 to the lower valve body 2, the driving pipe 441 is used for being sleeved on the vent pipe 311, the two clamping plates 442 are fixedly connected to the outer side wall of the driving pipe 441, and the clamping plates 442 are used for being connected to the clamping grooves 45 in a sliding mode; a rubber ring 46 is fixedly connected to the surface of the threaded sleeve 43 close to the snap ring 42.

The implementation principle of a large-flow relay valve in the second embodiment of the application is as follows: when dismantling breather pipe 311 from valve body 2 in down, operating personnel slides joint plate 442 and connects in joint groove 45, and operating personnel drives driving tube 441 through rotating joint plate 442 and rotates, and driving tube 441 drives thread bush 43 and rotates to open and close disk seat 3 and dismantle from valve body 2 down, make things convenient for operating personnel to operate.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A large-traffic relay valve which characterized in that: the valve comprises an upper valve body (1) and a lower valve body (2), wherein the upper valve body (1) is detachably connected to the lower valve body (2), a piston (22) is connected to the inner side of the upper valve body (1) in a sliding manner along the direction in which the upper valve body (1) is close to or far away from the lower valve body (2), a limiting cylinder (23) is arranged in the lower valve body (2) along the direction from the lower valve body (2) to the piston (22), an opening and closing valve seat (3) is arranged in the limiting cylinder (23), the opening and closing valve seat (3) comprises an air outlet device (31) and an opening and closing device (32), the opening and closing device (32) is arranged on the air outlet device (31), the opening and closing device (32) is connected to the limiting cylinder (23) in a sliding manner, a blocking plate for blocking the opening and closing device (32) is arranged on the limiting cylinder (23), and a connecting piece (4) for limiting the opening and closing valve seat (3) is arranged on the air outlet device (31) when the opening and closing valve seat (3) is abutted against the blocking plate, the connecting piece (4) is positioned on the outer side of the lower valve body (2).

2. A high flow relay valve as in claim 1, wherein: connecting piece (4) are including jump ring (41) and joint ring (42), joint ring (42) set up on opening and close disk seat (3), first joint annular (231) have been seted up to the one end that last valve body (1) was kept away from in spacing section of thick bamboo (23), offer second joint annular (232) that supply jump ring (41) to place on the groove lateral wall of first joint annular (231), the tank bottom formation of jump ring (41) and first joint annular (231) supplies the space that joint ring (42) was placed.

3. A high flow relay valve as in claim 1, wherein: a sealing ring groove (35) is formed in the side wall of the opening and closing valve seat (3), and a sealing ring (36) is arranged in the sealing ring groove (35).

4. A high flow relay valve according to claim 3, wherein: the sealing ring (36) is annular.

5. A high flow relay valve as in claim 1, wherein: connecting piece (4) are including thread bush (43) and drive thread bush (43) pivoted drive handle (44), first joint annular (231) have been seted up to the one end that last valve body (1) was kept away from in spacing section of thick bamboo (23), thread bush (43) threaded connection is on the cell wall of first joint annular (231), form the space that supplies to open and close disk seat (3) joint between the cell wall that last valve body (1) is close to in thread bush (43) and first joint annular (231).

6. A high flow relay valve according to claim 5, characterized in that: set up two joint grooves (45) that extend along thread bush (43) axis direction on the thread bush (43) inner wall, drive handle (44) are including drive tube (441) and set up joint plate (442) on drive tube (441), joint plate (442) are used for sliding and connect in joint groove (45).

7. A high flow relay valve according to claim 5, characterized in that: the threaded sleeve (43) is provided with a rubber ring (46), and the rubber ring (46) is located between the threaded sleeve (43) and the opening and closing device (32).

8. A high flow relay valve as in claim 1, wherein: a guide chamfer (24) is arranged between the surface of the limiting cylinder (23) far away from the upper valve body (1) and the inner side wall of the limiting cylinder (23).

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