CN205059581U - Novel relay valve - Google Patents
Novel relay valve Download PDFInfo
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- CN205059581U CN205059581U CN201520839436.XU CN201520839436U CN205059581U CN 205059581 U CN205059581 U CN 205059581U CN 201520839436 U CN201520839436 U CN 201520839436U CN 205059581 U CN205059581 U CN 205059581U
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Abstract
The utility model relates to a novel relay valve belongs to auto -parts technical field, and it has solved the not high problem of relay valve braking efficiency among the prior art. This novel relay valve, including last valve body and lower valve body, last valve body in be equipped with valve pocket, control mouthful, and the intercommunication go up the air pressure passage of valve pocket and control mouthful, lower valve body in be equipped with the piston, valve piston and big piston that the piston was arranged about being, its characterized in that, lower valve body on be equipped with inlet port, gas receiver interface and braking hole, inlet port one side of lower valve body still be equipped with supplementary inlet port. This novel relay valve sets up supplementary inlet port on through valve body under, has improved inlet flow to improve braking efficiency, set up the pressure boost gas pocket in the play of gas receiver interface, improved the give vent to anger stability and the efficiency of giving vent to anger of gas receiver, further promoted braking efficiency.
Description
Technical field
The utility model belongs to technical field of automobile, relates to a kind of automobile brake accessory, particularly a kind of relay valve.
Background technology
Relay valve belongs to a part for automobile air brake brake system.Relay valve admission port connects air receiver, and air extractor duct connects compressed air brake cylinder.When stepping on brake pedal, the output pressure of brake activation valve inputs as the control presssure of relay valve, under control presssure effect, air inlet valve is pushed open, so pressurized air just directly enters compressed air brake cylinder by admission port by air receiver, and brake activation valve need not be flowed through, substantially reduce the loading line of compressed air brake cylinder, accelerate the gas replenishment process of air chamber, therefore relay valve is amplifying relay valve again.
Relay valve is arranged on long pipe runs end, usually the position that distance air receiver is the most adjacent with compressed air brake cylinder is all mounted in, to make the air pressure of air receiver be full of compressed air brake cylinder rapidly more quickly like this, then convert to braking force be delivered to each mechanical position realize brake; In the brake system of trailer, because car body is long, brake piping reaches more than 20 meter, ensures stability and the trackability of vehicle when braking again, so just require that the work efficiency of trailer emergency relay valve will exceed the braking strength of drawing head, only in this way could convenient operation; Chinese patent Authorization Notice No. is CN203078514U, patent name discloses a kind of intelligent variable pressure relay valve in " a kind of intelligent variable pressure relay valve ", comprise upper valve body and lower valve body, in upper valve body, be provided with uuper valve chamber, control mouth and the pressure channel being communicated with uuper valve chamber and control mouth; The air inlet valve controlled by piston is provided with in lower valve body; It is the valve piston and large piston arranged up and down that described piston comprises; Described pressure channel comprises the one-level variable pressure passage acting on valve piston and the secondary variable pressure passage acting on large piston; The pressure regulating valve of a control described secondary variable pressure passage break-make is provided with in described upper valve body.By utilizing the different area of thrust surface of large piston and valve piston, realize opening the secondary of air inlet valve, thus soft braking when realizing unloaded is braked with high strength during heavy duty; Meanwhile, by shortening the stroke of brake pedal to the secondary transformation of control presssure, alleviate the strength at repeated alternation of chaufeur, achieve the safety control to people and Che to a certain extent.
Because the producer of domestic drawing head is a lot, the traction seat of various vehicle in design neither sustained height; Which results in headstock high, parking stall is low, and compartment is not on a horizontal; Semitrailer compartment factory three road vehicle bridge comprises the first vehicle bridge, the second vehicle bridge and the 3rd vehicle bridge; Wherein the first vehicle bridge is called propons, and for controlling front axle wheel; Second vehicle bridge and the 3rd vehicle bridge become back axle, and for controlling back axle wheel, such design is also design in view of the situation; But being through actual use, is not that each car is all quite reasonable, three bridge gravity distribute uneven, especially obvious when empty wagons, and major cause is what the height difference of the traction seat of main car caused, and a bridge is the lightest, and two bridges are slightly heavy, and three bridges are the heaviest; We know when braking force exceedes the adhesive ability on tire and ground time, wheel meeting locking; When the lightest stressed first vehicle bridge locking, second and third bridge does not also have enough braking forces to complete brake, and braking effect is had a greatly reduced quality, and wear on tyres one loses greatly especially simultaneously; This situation be for relay valve itself or for brake safe angle be all extremely dangerous, even may cause the tragedy of car crash.
Utility model content
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of novel relay valve of good braking effect.
The purpose of this utility model realizes by following technical proposal: a kind of novel relay valve, comprise upper valve body and lower valve body, uuper valve chamber is provided with, controls mouth and is communicated with uuper valve chamber and control the pressure channel of mouth in described upper valve body, piston is provided with in described lower valve body, it is the valve piston and large piston arranged up and down that described piston comprises, it is characterized in that, described lower valve body is provided with induction opening, air receiver interface and brake hole, and the induction opening side of described lower valve body is also provided with auxiliary inlet port.
The flow of induction opening can be increased by auxiliary inlet port, reach increase air pressure, improve the effect of indicating brake action.
In above-mentioned novel relay valve, described lower valve body is positioned at air receiver interface side and is also provided with pressurized gas port.By arranging pressurized gas port, the stability of giving vent to anger of air receiver can be increased, reaching the effect improving brake efficiency equally.
In above-mentioned novel relay valve, described brake hole is two groups and arranges and lower valve body both sides respectively, and often organizing brake hole is three.
In above-mentioned novel relay valve, described pressure channel comprises the one-level variable pressure passage acting on valve piston and the secondary variable pressure passage acting on large piston, this secondary variable pressure passage comprises the admission port corresponding with controlling mouth and the air extractor duct corresponding with large piston, be provided with the first air chamber be interconnected and the second air chamber in described secondary variable pressure passage, described admission port and air extractor duct are all communicated in the second air chamber.
In above-mentioned novel relay valve, check valve is provided with in the first described air chamber, described check valve comprises the valve seat being positioned at the first air chamber and the second air chamber joint, the spool matched with valve seat and the valve core spring for driving spool to move towards valve seat to cut off the first air chamber and the second air chamber, is also provided with the spring perch laid for valve core spring in described first air chamber.
In above-mentioned novel relay valve, piston mechanism is provided with in the second described air chamber, described piston mechanism comprise be positioned at the second air chamber and admission port joint piston seat, with piston seat against coordinating and the piston body coordinated with the second air chamber inner wall sealing and the piston spring moved towards piston seat to cut off the second air chamber and admission port for driven plunger body, piston body is convexly equipped with the push rod for pushing tow spool back to the side of piston seat; Described uuper valve chamber outer wall offers the inflator passage extended in the first air chamber.
Compared with prior art, this novel relay valve, by arranging auxiliary inlet port on lower valve body, improves charge flow rate, thus improve brake efficiency, go out to arrange pressurized gas port at air receiver interface, improve give vent to anger stability and the efficiency of giving vent to anger of air receiver, further Hoist braking efficiency.When gently touching on the brake, control mouth place input control gas, but the air pressure now controlling gas is generally 3kg ~ 3.5kg, by pre-setting, the pressure of this size cannot overcome piston body acting, now control gas will directly enter one-level variable pressure passage and act on valve piston body, then valve piston acts on large piston, thus realizes the slowly soft brake of trailer back axle; When heavily touching on the brake, the air pressure now controlling gas is greater than 3kg, control air pressure except partly entering except one-level variable pressure passage, control the piston body that pushing tow is also jammed in the second air chamber and admission port joint by gas, therefore the stressed and counter motion of piston body, piston body upper ejector pin will move and pushing tow spool thereupon, and make spool depart from valve seat, then the passage between the first air chamber and the second air chamber is opened; Inflator passage on first air chamber is connected to external air receiver, therefore be full of high pressure gas all the time in the first air chamber, therefore, after passage when between the first air chamber and the second air chamber is opened, high pressure gas enter the second air chamber by the passage opened, and directly act on large piston from the air extractor duct place of the second air chamber, thus realize the Quick brake of trailer back axle; The utility model, according to the order of importance and emergency of the dynamics of touching on the brake, realizes the order of importance and emergency that trailer back axle controls rear wheel brake dynamics, jumps the situation of tire when not only solving the brake of conventional trailer propons, and can prevent trailer car tyre from wearing and tearing when braking.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model;
Fig. 2 is main TV structure schematic diagram of the present utility model;
Fig. 3 is sectional structure schematic diagram of the present utility model.
In figure, 1, upper valve body; 11, uuper valve chamber; 2, lower valve body; 21, induction opening; 22, air receiver interface; 23, brake hole; 24, auxiliary inlet port; 25, pressurized gas port; 3, mouth is controlled; 4, valve piston; 5, large piston.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figures 1 to 3, this novel relay valve, comprise upper valve body 1 and lower valve body 2, uuper valve chamber 11 is provided with, controls mouth 3 and is communicated with uuper valve chamber 11 and control the pressure channel of mouth 3 in described upper valve body 1, be provided with piston in described lower valve body 2, it is the valve piston 4 and large piston 5 arranged up and down that described piston comprises, and it is characterized in that, described lower valve body 2 is provided with induction opening 21, air receiver interface 22 and brake hole 23, and induction opening 21 side of described lower valve body 2 is also provided with auxiliary inlet port 24.Described lower valve body 2 is positioned at air receiver interface 22 side and is also provided with pressurized gas port 25.The flow of induction opening 21 can be increased by auxiliary inlet port 24, reach increase air pressure, improve the effect of indicating brake action.By arranging pressurized gas port 25, the stability of giving vent to anger of air receiver can be increased, reaching the effect improving brake efficiency equally.
This brake hole 23 is two groups and arranges and lower valve body 2 both sides respectively, and often organizing brake hole 23 is three.
In this novel relay valve, described pressure channel comprises the one-level variable pressure passage acting on valve piston 4 and the secondary variable pressure passage acting on large piston 5, this secondary variable pressure passage comprises the admission port corresponding with controlling mouth 3 and the air extractor duct corresponding with large piston 5, be provided with the first air chamber be interconnected and the second air chamber in described secondary variable pressure passage, described admission port and air extractor duct are all communicated in the second air chamber.Check valve is provided with in the first described air chamber, described check valve comprises the valve seat being positioned at the first air chamber and the second air chamber joint, the spool matched with valve seat and the valve core spring for driving spool to move towards valve seat to cut off the first air chamber and the second air chamber, is also provided with the spring perch laid for valve core spring in described first air chamber.Piston mechanism is provided with in the second described air chamber, described piston mechanism comprise be positioned at the second air chamber and admission port joint piston seat, with piston seat against coordinating and the piston body coordinated with the second air chamber inner wall sealing and the piston spring moved towards piston seat to cut off the second air chamber and admission port for driven plunger body, piston body is convexly equipped with the push rod for pushing tow spool back to the side of piston seat; Described uuper valve chamber 11 outer wall offers the inflator passage extended in the first air chamber.
This novel relay valve by arranging auxiliary inlet port 24 on lower valve body 2, improve charge flow rate, thus improve brake efficiency, go out to arrange pressurized gas port 25 at air receiver interface 22, improve give vent to anger stability and the efficiency of giving vent to anger of air receiver, further Hoist braking efficiency.When gently touching on the brake, control mouth 3 place input control gas, but the air pressure now controlling gas is generally 3kg ~ .5kg, by pre-setting, the pressure of this size cannot overcome piston body acting, now control gas will directly enter one-level variable pressure passage and act on valve piston 4 body, then valve piston 4 acts on large piston 5, thus realizes the slowly soft brake of trailer back axle; When heavily touching on the brake, the air pressure now controlling gas is greater than 3kg, control air pressure except partly entering except one-level variable pressure passage, control the piston body that pushing tow is also jammed in the second air chamber and admission port joint by gas, therefore the stressed and counter motion of piston body, piston body upper ejector pin will move and pushing tow spool thereupon, and make spool depart from valve seat, then the passage between the first air chamber and the second air chamber is opened; Inflator passage on first air chamber is connected to external air receiver, therefore be full of high pressure gas all the time in the first air chamber, therefore, after passage when between the first air chamber and the second air chamber is opened, high pressure gas enter the second air chamber by the passage opened, and directly act on large piston 5 from the air extractor duct place of the second air chamber, thus realize the Quick brake of trailer back axle; The utility model, according to the order of importance and emergency of the dynamics of touching on the brake, realizes the order of importance and emergency that trailer back axle controls rear wheel brake dynamics, jumps the situation of tire when not only solving the brake of conventional trailer propons, and can prevent trailer car tyre from wearing and tearing when braking.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (6)
1. a novel relay valve, comprise upper valve body and lower valve body, uuper valve chamber is provided with, controls mouth and is communicated with uuper valve chamber and control the pressure channel of mouth in described upper valve body, piston is provided with in described lower valve body, it is the valve piston and large piston arranged up and down that described piston comprises, it is characterized in that, described lower valve body is provided with induction opening, air receiver interface and brake hole, and the induction opening side of described lower valve body is also provided with auxiliary inlet port.
2. novel relay valve according to claim 1, is characterized in that, described lower valve body is positioned at air receiver interface side and is also provided with pressurized gas port.
3. novel relay valve according to claim 1 and 2, is characterized in that, described brake hole is two groups and arranges and lower valve body both sides respectively, and often organizing brake hole is three.
4. novel relay valve according to claim 3, it is characterized in that, described pressure channel comprises the one-level variable pressure passage acting on valve piston and the secondary variable pressure passage acting on large piston, this secondary variable pressure passage comprises the admission port corresponding with controlling mouth and the air extractor duct corresponding with large piston, be provided with the first air chamber be interconnected and the second air chamber in described secondary variable pressure passage, described admission port and air extractor duct are all communicated in the second air chamber.
5. novel relay valve according to claim 4, it is characterized in that, check valve is provided with in the first described air chamber, described check valve comprises the valve seat being positioned at the first air chamber and the second air chamber joint, the spool matched with valve seat and the valve core spring for driving spool to move towards valve seat to cut off the first air chamber and the second air chamber, is also provided with the spring perch laid for valve core spring in described first air chamber.
6. novel relay valve according to claim 5, it is characterized in that, piston mechanism is provided with in the second described air chamber, described piston mechanism comprise be positioned at the second air chamber and admission port joint piston seat, with piston seat against coordinating and the piston body coordinated with the second air chamber inner wall sealing and the piston spring moved towards piston seat to cut off the second air chamber and admission port for driven plunger body, piston body is convexly equipped with the push rod for pushing tow spool back to the side of piston seat; Described uuper valve chamber outer wall offers the inflator passage extended in the first air chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520839436.XU CN205059581U (en) | 2015-10-27 | 2015-10-27 | Novel relay valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520839436.XU CN205059581U (en) | 2015-10-27 | 2015-10-27 | Novel relay valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205059581U true CN205059581U (en) | 2016-03-02 |
Family
ID=55386173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520839436.XU Expired - Fee Related CN205059581U (en) | 2015-10-27 | 2015-10-27 | Novel relay valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205059581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108819932A (en) * | 2018-06-28 | 2018-11-16 | 张应彪 | A kind of multi-functional three-axle relay valve |
-
2015
- 2015-10-27 CN CN201520839436.XU patent/CN205059581U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108819932A (en) * | 2018-06-28 | 2018-11-16 | 张应彪 | A kind of multi-functional three-axle relay valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20161027 |