CN202389363U - Novel hydraulic pressure matching valve - Google Patents
Novel hydraulic pressure matching valve Download PDFInfo
- Publication number
- CN202389363U CN202389363U CN2011204796801U CN201120479680U CN202389363U CN 202389363 U CN202389363 U CN 202389363U CN 2011204796801 U CN2011204796801 U CN 2011204796801U CN 201120479680 U CN201120479680 U CN 201120479680U CN 202389363 U CN202389363 U CN 202389363U
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- China
- Prior art keywords
- valve core
- valve
- exhaust
- exhaust plug
- upper valve
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- Expired - Fee Related
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Abstract
The utility model discloses a novel hydraulic pressure matching valve, which comprises a valve body with a valve cavity, wherein an air inlet, an exhaust port and an air outlet are arranged on the valve body, a barrel-shaped upper valve core is sleeved at the end of the valve cavity close to the air inlet, a lower valve core is sleeved on the upper valve core and in the valve cavity, a through hole is arranged on the lower valve core, an exhaust valve core is arranged through the through hole, one exhaust valve core sealing device is arranged between one end of the exhaust valve core and the through hole, and one exhaust valve core sealing device is arranged between the other end of the exhaust valve core and the exhaust port, an upper valve core sealing device is arranged between the upper valve core and an inner surface of the valve cavity, one lower valve core sealing device is arranged between one end of the lower valve core and the upper valve core and one lower valve core sealing device is arranged between the other end of the lower valve core and the inner surface of the valve cavity, an upper valve core clamping device is arranged between the upper valve core and the valve body, an exhaust valve core clamping device is arranged between the exhaust valve core and the lower valve core, the exhaust valve core can form sealing faces with the lower valve core and the exhaust port respectively through the exhaust valve core sealing devices, thereby the exhaust velocity can be adjusted, the stability of vehicle braking can be guaranteed, and a ratio between an input pressure and an output pressure can be adjusted by the exhaust valve core clamping device to obtain a large braking moment.
Description
Technical field
The utility model relates to a kind of valve body, relates in particular to a kind of coupling valve that the engineering truck brake system is used that is suitable for.
Background technology
The coupling valve that engineering truck uses can be regulated the ratio of input and output pressure; To improve the deceleration and stopping performance of whole locomotive body; Coupling valve arrangement of the prior art is compact inadequately; In braking procedure, occur easily stuck, brake jiggly phenomenon, have a strong impact on the service life of the safety performance and the master brake cylinder of brake system.
The utility model content
The utility model technical matters to be solved provides a kind of compact conformation, can improve the novel hydraulic coupling valve of deceleration and stopping performance.
For solving the problems of the technologies described above; The technical scheme of the utility model is: novel hydraulic coupling valve; Comprise that inside is provided with the valve body of valve pocket, an end of said valve body is provided with the admission port that is communicated with valve pocket, and the other end is provided with exhausr port and the air extractor duct that is communicated with valve pocket; Be positioned at the admission port end in the said valve pocket and be set with the tubular upper valve core; Bottom spool one end is set in the upper valve core and the other end is set in the valve pocket, and said bottom spool is provided with the through hole that is communicated with the bottom spool two ends, passes said through hole and is provided with and is respectively equipped with the exhaust plug sealing arrangement between exhaust plug and said exhaust plug two ends and through hole and the exhausr port; Be provided with the upper valve core sealing arrangement between said upper valve core and the said valve pocket inside face; Be respectively equipped with the bottom spool sealing arrangement between said bottom spool two ends and upper valve core and the valve pocket inside face, be provided with the upper valve core pinch device between said upper valve core and the said valve body, be provided with the exhaust plug pinch device between said exhaust plug and the said bottom spool.
As optimized technical scheme, said valve body comprises the upper valve body and following valve body that is threaded together.
As optimized technical scheme; Said upper valve core pinch device comprises the boss that is arranged on the said upper valve core outer wall; Said boss place is set with first packing washer; Said valve body down is connected an end with upper valve body end is provided with second packing washer, is provided with holddown spring between said first packing washer and second packing washer.
As optimized technical scheme, said exhaust plug pinch device comprises that said exhaust plug is provided with spring perch near an end of exhausr port, is provided with the exhaust plug spring between said spring perch and the said bottom spool.
As optimized technical scheme, said upper valve core sealing arrangement and bottom spool sealing arrangement are respectively O-ring seals.
As optimized technical scheme, said exhaust plug sealing arrangement is a packing seal.
As the improvement to technique scheme, the said exhausr port outside is provided with exhaust gas silencer.
Owing to adopted technique scheme; The beneficial effect of the utility model is: between the air extractor duct place of bottom spool and exhausr port, be provided with exhaust plug; Exhaust plug can form sealing surface respectively and between bottom spool and the exhausr port through the exhaust plug sealing arrangement; To regulate exhaust velocity, help to guarantee the stationarity of car brakeing, eliminate brake safe hidden danger; Between said exhaust plug and said bottom spool, be provided with the exhaust plug pinch device, can regulate the ratio of input and output pressure, thereby obtain bigger lock torque.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment;
Among the figure: the 1-upper valve body; Valve body under the 2-; The 3-admission port; The 4-air extractor duct; The 5-exhausr port; The 6-upper valve core; The 7-bottom spool; The 8-boss; 9-first packing washer; 10-second packing washer; The 11-holddown spring; The 12-tightening seal washer; The 13-exhaust plug; The 14-upper sealing washer; The 15-lower sealing washer; The 16-exhaust gas silencer; The 17-spring perch; 18-exhaust plug spring; The 19-through hole.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, further set forth the utility model.In the detailed description below, some example embodiment of the utility model has only been described through the mode of explanation.Undoubtedly, those of ordinary skill in the art can recognize, under the situation of spirit that does not depart from the utility model and scope, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used to limit the protection domain of claim.
Novel hydraulic coupling valve shown in accompanying drawing 1; Comprise that inside is provided with the valve body of valve pocket; Said valve body comprises the upper valve body 1 and following valve body 2 that is threaded together, and an end of said valve body is provided with the admission port 3 that is communicated with valve pocket, and the other end is provided with an exhausr port 5 and two air extractor ducts 4 that are communicated with valve pocket; Be positioned at the admission port end in the said valve pocket and be set with tubular upper valve core 6; Bottom spool 7 one ends are set in the upper valve core 6 and the other end is set in the valve pocket, and said bottom spool 7 is provided with the through hole 19 that is communicated with bottom spool 7 two ends, passes said through hole 19 and is provided with exhaust plug 13; And be respectively equipped with the exhaust plug sealing arrangement between said exhaust plug 13 two ends and through hole 19 and the exhausr port 5; Said exhaust plug sealing arrangement is a packing seal, and packing seal is respectively between said exhaust plug 13 and said bottom spool 7 air extractor ducts and is provided with upper sealing washer 14, and between said exhaust plug 13 and said exhausr port 5, is provided with lower sealing washer 15.
Be provided with the upper valve core sealing arrangement between said upper valve core 6 and the said valve pocket inside face; Be respectively equipped with the bottom spool sealing arrangement between said bottom spool 7 two ends and upper valve core 6 and the valve pocket inside face, and said upper valve core sealing arrangement and bottom spool sealing arrangement are respectively O-ring seals 12.
Be provided with the upper valve core pinch device between said upper valve core 6 and the said valve body; Said upper valve core pinch device comprises the boss 8 that is arranged on said upper valve core 6 outer walls; Said boss 8 places are set with first packing washer 9; Said valve body 2 down is connected an end with upper valve body 1 end is provided with second packing washer 10, is provided with holddown spring 11 between said first packing washer 9 and second packing washer 10.
Be provided with the exhaust plug pinch device between said exhaust plug 13 and the said bottom spool 7; Said exhaust plug pinch device comprises that said blow off valve 13 near the spring perch 17 that an end of exhausr port 5 is provided with, is provided with exhaust plug spring 18 between said spring perch 17 and the said bottom spool 7.The said exhausr port outside is provided with exhaust gas silencer, to reduce brake noise.
Be formed with sealing surface I between the upper sealing washer of the utility model exhaust plug and the said bottom spool air extractor duct, be formed with sealing surface II between the lower sealing washer of exhaust plug and the said exhausr port.In use, the admission port of coupling valve connects the freeing pipe of brake activation valve, and two air extractor ducts of coupling valve connect drg compressed air brake cylinder admission port respectively.
The I of the utility model as principle is:
When the beginning glancing impact, step on down brake pedal, brake pedal drives the brake piston reach that brake push rod makes brake activation valve; The freeing pipe of brake activation valve has pressure gas to get into coupling valve admission port, because sealing surface I is in closed state, gas promotes exhaust plug and moves after sealing surface II seals fully down; The air gap of air extractor duct is opened, and the bottom spool of gas promotion simultaneously slowly moves down, and I slowly opens with sealing surface; Gas gets into compressed air brake cylinder through the air gap around the exhaust plug, and the air chamber diaphragm moves, and promotes brake activation valve and brakes; Because the effect of exhaust plug spring; Sealing surface I can not open before intake pressure reaches 0.41Mpa fully, thus make intake pressure when going out atmospheric pressure and solve automobile brake before and after the proportioning problem, effectively improve automobile brake perfrmance.
When brake off; The brake pedal travelling backwards, the brake piston of brake activation valve resets, and the pressure gas in the brake activation valve freeing pipe is discharged through brake activation valve; Be that the interior pressed gas pressure with coupling valve admission port of brake activation valve freeing pipe is zero; Because admission port does not have pressure, under the double action of exhaust plug spring and two air extractor duct gaseous tensions, move on the exhaust plug until sealing surface I sealing, sealing surface II depressurization; Pressed gas in two air extractor ducts and the compressed air brake cylinder is discharged through exhausr port, and braking is removed.
More than show and described the advantage of groundwork, principal character and the utility model of the utility model.The technical personnel of the industry should be understood; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification sheets that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (7)
1. novel hydraulic matees valve; Comprise that inside is provided with the valve body of valve pocket; One end of said valve body is provided with the admission port that is communicated with valve pocket; The other end is provided with exhausr port and the air extractor duct that is communicated with valve pocket, it is characterized in that: be positioned at the admission port end in the said valve pocket and be set with the tubular upper valve core, bottom spool one end is set in the upper valve core and the other end is set in the valve pocket; Said bottom spool is provided with the through hole that is communicated with the bottom spool two ends; Pass said through hole and be provided with between exhaust plug and said exhaust plug two ends and through hole and the exhausr port and be respectively equipped with the exhaust plug sealing arrangement, be provided with the upper valve core sealing arrangement between said upper valve core and the said valve pocket inside face, be respectively equipped with the bottom spool sealing arrangement between said bottom spool two ends and upper valve core and the valve pocket inside face; Be provided with the upper valve core pinch device between said upper valve core and the said valve body, be provided with the exhaust plug pinch device between said exhaust plug and the said bottom spool.
2. novel hydraulic coupling valve as claimed in claim 1, it is characterized in that: said valve body comprises the upper valve body and following valve body that is threaded together.
3. novel hydraulic coupling valve as claimed in claim 2; It is characterized in that: said upper valve core pinch device comprises the boss that is arranged on the said upper valve core outer wall; Said boss place is set with first packing washer; Said valve body down is connected an end with upper valve body end is provided with second packing washer, is provided with holddown spring between said first packing washer and second packing washer.
4. novel hydraulic coupling valve as claimed in claim 1, it is characterized in that: said exhaust plug pinch device comprises that said exhaust plug is provided with spring perch near an end of exhausr port, is provided with the exhaust plug spring between said spring perch and the said bottom spool.
5. novel hydraulic coupling valve as claimed in claim 1, it is characterized in that: said upper valve core sealing arrangement and bottom spool sealing arrangement are respectively O-ring seals.
6. novel hydraulic coupling valve as claimed in claim 1, it is characterized in that: said exhaust plug sealing arrangement is a packing seal.
7. like each described novel hydraulic coupling valve in the claim 1 to 6, it is characterized in that: the said exhausr port outside is provided with exhaust gas silencer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204796801U CN202389363U (en) | 2011-11-28 | 2011-11-28 | Novel hydraulic pressure matching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204796801U CN202389363U (en) | 2011-11-28 | 2011-11-28 | Novel hydraulic pressure matching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202389363U true CN202389363U (en) | 2012-08-22 |
Family
ID=46664308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204796801U Expired - Fee Related CN202389363U (en) | 2011-11-28 | 2011-11-28 | Novel hydraulic pressure matching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202389363U (en) |
-
2011
- 2011-11-28 CN CN2011204796801U patent/CN202389363U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20151128 |