CN109278732A - Anti-freezing type multifunctional emergency brake valve and application method - Google Patents
Anti-freezing type multifunctional emergency brake valve and application method Download PDFInfo
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- CN109278732A CN109278732A CN201811317115.8A CN201811317115A CN109278732A CN 109278732 A CN109278732 A CN 109278732A CN 201811317115 A CN201811317115 A CN 201811317115A CN 109278732 A CN109278732 A CN 109278732A
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- 238000007710 freezing Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims description 13
- 230000000694 effects Effects 0.000 claims abstract description 21
- 238000005192 partition Methods 0.000 claims abstract description 9
- 125000006850 spacer group Chemical group 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 230000001012 protector Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 230000006872 improvement Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
Anti-freezing type multifunctional emergency brake valve disclosed by the invention, including valve body, it is top-down in the valve body to be provided with pressurization control chamber, main control chamber and brake chamber, partition is provided between the pressurization control chamber and main control chamber.The improvement that the present invention passes through structure, increase the reset force of main piston and charged piston, even if in pressurization control chamber and main control chamber, there are certain ice amounts, also ice can be smashed, completion smoothly resets, it can be with effective solution cold snap negative effect caused by brake valve, it is ensured that traffic safety；The present invention can be adjusted the supercharging effect of pressurization control chamber, can also be adjusted to the reset force of main piston, and use is very flexible, can be adjusted according to extraneous circumstance.
Description
Technical field
The present invention relates to automobile emergency brake valve technology field more particularly to a kind of anti-freezing type multifunctional emergency brake valve with
And application method.
Background technique
It is increasingly developed with auto manufacturing and transportation, to automobile-use especially drawbar trailer brake valve
Technical requirements it is also higher and higher, it is directly related to traffic safety, in well-known technique, motor vehicle drawbar trailer emergency braking
Valve is mainly the single or multiple control chamber controlled emergency braking valves being made of valve seat, valve deck, spool, and relatively advanced is tight
Anxious brake valve has the regulative mode of control with changed scale, but is the adjusting of fixed proportion, inflexible using being restricted, after
Come our company and discloses " multi-functional adjusting emergency braking in the patent of invention specification of Publication No. " CN207523683U "
Valve " (publication date 2018.06.22) realizes electrodeless proportion adjustment mode by the improvement of structure in the patent, but its
Use condition receive certain limitation simultaneously, if entered in pressurization control chamber and main control chamber in cold area
After moist air, it is easy to freeze, and it relies solely on the reset that a return spring carries out each part, is easy to happen
Hypodynamic situation is resetted, influences the normal activity of associated components, there are some potential safety problemss.
Summary of the invention
In place of avoiding the deficiencies in the prior art, anti-freezing type multifunctional emergency brake valve is provided, from
And effectively solve the shortcomings of the prior art.
To achieve the above object, the technical scheme adopted by the invention is as follows: anti-freezing type multifunctional emergency brake valve, including valve
Body, it is top-down in the valve body to be provided with pressurization control chamber, main control chamber and brake chamber, the pressurization control chamber and master control
Partition is provided between chamber processed；
Inflating port, braking delivery outlet, the first control air inlet and the second control air inlet are provided on the side wall of the valve body
Mouthful；
The braking delivery outlet is connected to the lower part of the brake chamber, the first control air inlet and the main control chamber
Connection, the second control air inlet are connected to the top of the pressurization control chamber；
The pressurization control it is intracavitary can upper-lower seal sliding be provided with charged piston, the middle part fixed setting of charged piston
There is hollow sleeve, aperture is provided at the top of the valve body, the top of the hollow sleeve passes through aperture and extends to the outer of the valve body
Side, hollow sleeve are that sealing is slidably matched with the aperture, and the top of the hollow sleeve has screwed the first locking by helicitic texture
Adjusting nut is provided with the first adjustment spring between the first locking adjusting nut and valve body, and the spring is with strength return
Effect；
The hollow sleeve is cooperated to be provided with the guide sleeve extended downwardly on the partition, it can upper-lower seal in the brake chamber
Sliding is provided with main piston, is provided with inserting groove at the top of main piston, the guide sleeve can upper-lower seal sliding be plugged on
In the inserting groove, the bottom of the hollow sleeve passes through guide sleeve and is resisted against in the inserting groove；
Activity is plugged with connecting rod in the hollow sleeve, and the connecting rod is cooperated to be provided with mounting hole on the main piston,
The bottom end of the connecting rod is provided with the limited block matched with main piston, extends the top of hollow sleeve at the top of the connecting rod
End, the top of connecting rod have screwed the second locking adjusting nut by helicitic texture, the second locking adjusting nut and hollow sleeve it
Between be provided with the second adjustment spring；
The top of the main piston, the lateral wall of guide sleeve, the bottom of partition and valve body inner wall be enclosed institute
State main control chamber；
The lower part of the brake chamber is provided with and communicated with opening and closing chamber, and the side for being opened and closed chamber is provided with and communicated with gas source interface, opening and closing
The bottom of chamber is fixedly installed spool bracket, in spool bracket can upper-lower seal sliding be provided with spool, spool is located at described
The underface of main piston is provided between spool and spool bracket and holds out against spring, holds out against spring and pushes up spool and makes spool
It is resisted against brake chamber and is opened and closed in the ladder platform of chamber connectivity part, to block the connection of the brake chamber and gas source interface；
The opening and closing chamber is connected with the inflating port, and is provided with one-way valve structures on the interface channel of the two.
Further, first row stomata is provided on body wall locating for the pressurization control chamber.
Further, second row stomata is provided on body wall locating for the brake chamber.
Further, the top of the valve body is removably provided with head protector by helicitic texture.
Further, spacer is provided in the main control chamber B and/or brake chamber C, the main piston and/or brake chamber increase
Press piston respectively can upper-lower seal sliding setting in respective spacer.
A kind of application method of above-mentioned anti-freezing type multifunctional emergency brake valve, includes the following steps:
(1) in the state of initial, pressure source inwardly supplements compressed gas by inflating port, and compressed gas pushes down on list
To valve, tower spring is compressed, and pressed gas enters in opening and closing chamber by the gap between check valve and valve body, then passes through gas source
Interface is drained into air accumulator, completes the storage work of compressed gas, is prepared to provide the pressed gas of braking；
(2) brake modes are waited to control pressed gas into the first control air inlet and the second control air inlet by foot-operated
In, tolerance between the two can be complemented each other by Vertical Channel, guarantee that the abundance of pressure, a part of compressed gas enter
In main control chamber, give main piston one pressure moved downward, after the pressure overcomes resistance, main piston is moved down,
First adjustment spring and the second adjustment spring are in the state of compression, and push down on spool, spool move down after with
The gap released for the compressed gas in air accumulator is formed between valve body, the compressed gas in air accumulator successively passes through gas
Source interface, opening and closing chamber, brake chamber and braking delivery outlet enter in brake piping, and then complete brake, later each
Under the action of a spring element, all components are resetted, and are prepared for next brake.
Above-mentioned technical proposal of the invention has the advantages that improvement of the present invention by structure, increases main work
The reset force of plug and charged piston, so that adjustment spring has both in brake release is provided with strength return function, even if increasing
There are certain ice amounts in pressure control chamber and main control chamber can also break through the heavy of frost due to adjusting the superpower elastic force of spring
Resistance smashes ice, and completion smoothly resets, can be with effective solution cold snap negative effect caused by brake valve, really
Protect traffic safety；The present invention can be adjusted the supercharging effect of pressurization control chamber, can also reset force to main piston into
Row adjustment, use is very flexible, can be adjusted according to extraneous circumstance.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the embodiment of the present invention.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment is used for
Illustrate the present invention, but cannot be used to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more；Term " on ",
The orientation or positional relationship of the instructions such as "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
As shown in Figure 1, anti-freezing type multifunctional emergency brake valve described in the present embodiment, including valve body 1, valve body 1 are interior from upper
Be provided with pressurization control chamber A, main control chamber B and brake chamber C under and, be provided between pressurization control chamber A and main control chamber B every
Plate 2；
Inflating port 3 is provided on the side wall of valve body 1, braking delivery outlet 4, first controls air inlet 5 and the second control air inlet
Mouth 6, the first control air inlet 5 are interconnected with the second control air inlet 6 by Vertical Channel 24；
Braking delivery outlet 4 is connected to the lower part of brake chamber C, and the first control air inlet 5 is connected to main control chamber B, the second control
Air inlet 6 processed is connected to the top of pressurization control chamber A；
In pressurization control chamber A can upper-lower seal sliding be provided with charged piston 7, the middle part fixed setting of charged piston 7
There is hollow sleeve 8, step structure is provided in hollow sleeve 8, the top of charged piston 7 is resisted against on step structure, and is passed through
The nut screwed in empty set 8 locks the position of charged piston 7, and hollow sleeve 8 and charged piston 7 use split type knot
Structure, convenient for production and dismounting, the top of valve body 1 is provided with aperture, and the top of hollow sleeve 8 passes through aperture and extends to valve body 1
Outside, hollow sleeve 8 are that sealing is slidably matched with aperture, and the top of hollow sleeve 8 has screwed the first locking adjustment by helicitic texture
Nut 9 is provided with the first adjustment spring 10 between first locking adjusting nut 9 and valve body 1；
Hollow sleeve 8 is cooperated to be provided with the guide sleeve 2a extended downwardly on partition 2, it can upper-lower seal sliding in brake chamber C
Be provided with main piston 11, the top of main piston 11 is provided with inserting groove 11a, guide sleeve 2a can upper-lower seal sliding be plugged on it is slotting
In access slot 11a, the bottom of hollow sleeve 8 passes through guide sleeve 2a and is resisted against in inserting groove 11a；
Activity is plugged with connecting rod 12 in hollow sleeve 8, and mating connection bar 12 is provided with mounting hole, connecting rod on main piston 11
12 bottom end is provided with the limited block 12a matched with main piston 11, and the top of hollow sleeve 8 is extended at the top of connecting rod 12,
The top of connecting rod 12 has screwed the second locking adjusting nut 13, the second locking adjusting nut 13 and hollow sleeve by helicitic texture
The second adjustment spring 14 is provided between 8；
The top of main piston 11, the lateral wall of guide sleeve 2a, the bottom of partition 2 and valve body 1 inner wall be enclosed
Main control chamber B；
The lower part of brake chamber C is provided with and communicated with opening and closing chamber D, and the side of opening and closing chamber D is provided with and communicated with gas source interface 15, preferably
, there are three the settings of gas source interface 15, and three gas source interfaces 15 are located on the different lateral in 1 outside of valve body, guarantees gas
The bottom of the rate and stability of circulation, opening and closing chamber D is fixedly installed spool bracket 16, can upper-lower seal in spool bracket 16
Sliding is provided with spool 17, and spool 17 is located at the underface of main piston 11, top is provided between spool 17 and spool bracket 16
Tight spring 18 holds out against spring 18 and pushes up the ladder that spool 17 makes spool 17 be resisted against brake chamber C and opening and closing chamber D connectivity part
On platform 19, to block the connection of brake chamber C Yu gas source interface 15；
First row stomata 20 is provided on 1 side wall of valve body locating for pressurization control chamber A.
Second row stomata 21 is provided on 1 side wall of valve body locating for brake chamber C.
Opening and closing chamber D is connected with inflating port 3, and one-way valve structures are provided on the interface channel of the two, check valve knot
Structure includes check valve 22 and tower spring 23, it is preferred that the lower section of tower spring 23 is provided with silk plug, and the quick of one-way valve structures may be implemented
Dismounting, easy access.
Braking delivery outlet 4 is provided with multiple, it is preferred that braking delivery outlet 4 is provided with 6, and 6 braking delivery outlets 4 are two-by-two
Three different laterals for being arranged in valve body 1 on.
The top of valve body 1 is removably provided with head protector 27 by helicitic texture, and head protector 27 is by the first adjustment spring
10, the first locking adjusting nut 9, hollow sleeve 8, connecting rod 12, the second adjustment spring 14 and the second 13 sets of adjusting nut of locking
Mounted in inside, play the role of protection, prolongs the service life.
The operation principle of the present invention is that:
In the state of initial, by inflating port 3, inwardly supplement compressed gas, compressed gas push down on unidirectionally pressure source
Valve 22, tower spring 23 are compressed, and pressed gas enters in opening and closing chamber D by the gap between check valve 22 and valve body 1, then logical
It crosses gas source interface 15 to be drained into air accumulator, completes the storage work of compressed gas, prepare to provide the pressed gas of braking.
Brake modes control pressed gas is waited to enter in the first control air inlet 5 and the second control air inlet 6 by foot-operated,
Tolerance between the two can be complemented each other by Vertical Channel 24, guarantee that the abundance of pressure, a part of compressed gas enter
In main control chamber B, give main piston 11 1 pressure moved downward, after the pressure overcomes resistance, main piston 11 is downward
Mobile, when the brake pressure of chamber C to be braked reaches certain value, the first adjustment spring 10 is in the second adjustment spring 14 and continues
The state of compression overcomes the resistance of adjustment spring, the power from the pressure of charged piston 7 with the increase of control pressure
It acts in hollow sleeve 8, and is superimposed upon on main piston 11, main piston 11 continues to act on spool 17, and continues to push down on
Spool 17, spool 17 form the gap released for the compressed gas in air accumulator after moving down between valve body 1,
Compressed gas in air accumulator successively passes through gas source interface 15, opening and closing chamber D, brake chamber C and braking delivery outlet 4 and enters braking
In pipeline, and then brake is completed, later under the action of each spring element, all components are resetted, in the mistake of reset
Cheng Zhong, the first adjustment spring 10 and the second adjustment spring 14 play a upward pressure to main piston 11 and charged piston 7
Traction action, since the reset force that adjustment spring provides is greater than the elastic force of return spring in the prior art from far away, so greatly
The reset force of main piston 11 and charged piston 7 is improved, even if there are certain ice in pressurization control chamber A and main control chamber B
Amount, ice can also be smashed, completion smoothly reset, can with effective solution cold snap negative effect caused by brake valve,
Ensure traffic safety.
When gas pressure intensity deficiency in air accumulator, it is inflated work again.
In above-mentioned use process, it can be mentioned by rotation the first locking adjusting nut 9 to control pressurization control chamber A
The supercharging effect of confession: when screwing the first locking adjusting nut 9 downwards, due to the reaction force of the first adjustment spring 10,
It will drive charged piston 7 to move up with main piston 11, and then main piston driven with connecting rod 12 by the second adjustment spring 14
11 move up, i.e. distance of the main piston 11 apart from spool 17 increases, this means that under identical situation, if it is desired to make
Before the state and adjusting that obtain the opening of spool 17, it is desirable to provide the bigger compressed gas of pressure, so in the pressure of same pressure
Under conditions of contracting gas, the degree that spool 17 is opened just is reduced, i.e., formed between spool 17 and valve body for air accumulator
In the gap that comes out of compressed gas just become smaller, so the pressure provided in air accumulator into brake piping is reduced by,
Being equivalent to weakens braking effect, it also will be understood that are as follows: nut is to backspin, due to adjustment tension force of spring increase, uniform pressure
In the case where, charged piston needs to overcome tension force of spring, so charged piston is superimposed upon, the power on main piston is just corresponding to be reduced,
Again so the braking output pressure of brake chamber C is with regard to low；Conversely, when screwing the first locking adjusting nut 9 upwards, air accumulator
Provided in pressure into brake piping just increase, strengthen braking effect, and the above process is due to being directly to pass through spiral shell
Line structure is adjusted, it is the pressure for adjusting charged piston 7 and being applied to main piston 11, since this pressure is with pressure
Increase and continually changing and none value that can fix, and this value is with the raising of brake pressure, also in multiple
It increases, without fixed number, that is, brakes the brake pressure of output end and the pressure of braking input terminal as the increase of brake pressure is not
The multiple of one fixed number value, but one increases the value changed.Brake pressure is bigger, and the ratio of control for brake chamber and brake chamber is got over
Greatly.It is achieved that electrodeless adjustment namely electrodeless transformation, very convenient, practical, i.e., by adjusting the first locking adjusting nut 9
Position, the control of the direct supercharging effect for realizing pressurization control chamber A can be used to, when the first locking adjusting nut 9 screws
When to bottom, supercharging effect is worst, or even after the first adjustment spring 10 is forced into minimum stroke completely, pressurization control
Chamber A just loses increased effect completely, certainly, when the first locking adjusting nut 9 is screwed to top, i.e., by the first adjustment spring
10 are discharged into after range, and the increase effect of pressurization control chamber A is best.
Since China has a vast territory, there is very big regional disparities, the vehicle of the broad area operation on the south the Changjiang river,
Less than the north, second adjustment spring 14, the second locking nut 13, connecting rod 12 can be saved, has not only adapted to the weather in area
Feature, and use cost can be reduced.
In addition to above-mentioned adjustment, the position of adjusting nut 13 can also be locked by adjusting second to be directly realized by main piston
11 state adjustment: when screwing the second locking adjusting nut 13 downwards, since the restriction effect of connecting rod 12, second is adjusted
Section spring 14 is compressed, although not changing to the position of main piston 11 at this time, it is right to increase the second adjustment spring 14
Its pretightning force applied needs bigger pressure that main piston 11 can be made to pull connecting rod 12 relative to hollow sleeve 8
Slide downward, but after braking process terminates, main piston 11 can be retracted original with bigger elastic force by the second adjustment spring 14
Position thus can adjust to carry out the position of the second locking nut 13 according to arctic weather situation, guarantee that second adjusts bullet
Spring 14 has enough elastic force smoothly to retract original position under the premise of main piston 11 freezes in main control chamber B, guarantees each portion
The normal work of part.
It, can also through the above description it is recognised that the present invention can be adjusted the supercharging effect of pressurization control chamber A
It is adjusted with the return driving source to main piston 11, use is very flexible.
As can be seen that the cross-sectional area due to main control chamber B is greater than cross-sectional area (the i.e. main piston 11 of brake chamber C in figure
Upper and lower surfaces area), so in the equilibrium state of gas supply, due to F=PS, so the pressure caused by brake chamber C
The atmospheric pressure value of contracting air is greater than the atmospheric pressure value of main control chamber B, i.e. the atmospheric pressure value of brake chamber C is the certain of main control chamber B atmospheric pressure value
Multiple, the multiple be main control chamber B cross-sectional area divided by brake chamber C cross-sectional area ratio, so the present invention is according to road
Even if the case where condition and vehicle does not use pressurization control chamber A, equally also there is the function of more preceding braking.
It is provided in main control chamber B and/or brake chamber C spacer (to be not shown), spacer is annular, and outside is respectively at master
The inner wall of control chamber B or brake chamber C cooperation, main piston and/or brake chamber charged piston respectively can upper-lower seal sliding set
It sets in respective spacer, i.e., in main control chamber B spacer only is set, spacer or simultaneously is perhaps only set in brake chamber C
Spacer is set in main control chamber B and brake chamber C；Spacer is sealed using sealing ring, it is contemplated that in pressurization control chamber A
In the case that control area is certain, by changing the work area of main control chamber B and the work area of brake chamber C, it can play
Increase braking or reduce the effect of braking ratio, the braking pressure of C chamber is made to be more suitable for braking requirement, more there is braking feel and saving
The power of pedal brake pedal when braking keeps braking lighter strong.
Finally, the bottom of valve body 1 is provided with emergency braking mechanism, the present invention is the structure improvement in the prior art, therefore
Emergency braking mechanism is same as the prior art, is described briefly herein, and emergency braking mechanism includes that sealing is slidably arranged in valve body 1
On the sliding rack 25 with upper and lower opening, the inside of sliding rack 25 is enclosed above-mentioned opening and closing chamber D, and spool bracket 19 is fixed
The inner cavity lower part of sliding rack 25 is set, be provided on the side wall of sliding rack 25 respectively with one-way valve structures, 15 phase of gas source interface
The hole of connection is fixedly installed the baffle 26 with holes for limit slippage frame 25 to bottom offset on valve body 1, in a braking work
Make in process, after, all parts playback after, main piston 11 moves up, and gap, valve are formed between spool 17
It is provided with via hole 17a on core 17, remaining pressed gas flows back in brake chamber C on brake piping and on braking member, then
Gap between main piston 11 and spool 17 flows in via hole 17a, is then discharged into atmosphere through the hole on baffle 26, above-mentioned
Process is normally to unload gas process.
Emergency braking principle are as follows: under general state, due to having compressed air on inflating port 3, which is opened unidirectionally
While valve 22, have and air is partially compressed enters the top of sliding rack 25, the air effect valve body 1 and sliding rack 25 it
Between, and pressure is produced, since the area of 25 top of sliding rack is greater than the area of 25 lower section of sliding rack, sliding rack 25 is moved down, meeting
By pushing the hierarchic structure of sliding rack 25, so that sliding rack 25 moves down, and the urgent system of 25 bottom of sliding rack is compressed
It moves spring (not shown), and is resisted against on baffle 26, i.e., the pressure in the pressure and air accumulator at inflating port 3 is in equilibrium-like
State disappears when loading line disconnects the compressed air i.e. when emergency braking, at inflating port 3, and pressure herein is 0, is opened
The compressed air of closed chamber D is on the baffle 26 below sliding rack, and sliding rack 25 is in pressure action power and emergency braking spring tension
Under the action of move up, when be moved to spool and main piston 11 contact on when, spool is static, and the working face of spool and main piston 11 is tight
Contiguity touching, closes spool 17a, then overcome the tension for holding out against spring 18, and sliding support 25 continues to move up, spool 17 and sliding branch
The distance of frame 25 increases, and compressed air comes out from air accumulator, produces by gas source interface 15 and spool 17 and sliding support 25
Raw gap reaches C chamber, then finally reaches braking member into brake piping through braking delivery outlet 4, completes emergency braking.
The dependency structure and principle of emergency braking are public in the utility model patent specification of " CN207523683U "
It opens.
The embodiment of the present invention is given for the purpose of illustration and description, and is not exhaustively or by this to send out
It is bright to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Choosing
Selecting and describe embodiment is and to make those skilled in the art to more preferably illustrate the principle of the present invention and practical application
It will be appreciated that the present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (6)
1. anti-freezing type multifunctional emergency brake valve, including valve body, which is characterized in that top-down in the valve body to be provided with increasing
Control chamber, main control chamber and brake chamber are pressed, is provided with partition between the pressurization control chamber and main control chamber；
Inflating port, braking delivery outlet, the first control air inlet and the second control air inlet are provided on the side wall of the valve body；
The braking delivery outlet is connected to the lower part of the brake chamber, and the first control air inlet and the main control chamber connect
Logical, the second control air inlet is connected to the top of the pressurization control chamber；
The pressurization control it is intracavitary can upper-lower seal sliding be provided with charged piston, be fixedly installed in the middle part of charged piston
Empty set is provided with aperture at the top of the valve body, and the top of the hollow sleeve passes through the outside that aperture extends to the valve body, in
Empty set is that sealing is slidably matched with the aperture, and the top of the hollow sleeve has screwed the first locking by helicitic texture and adjusted spiral shell
Mother is provided with the first adjustment spring between the first locking adjusting nut and valve body；
The hollow sleeve is cooperated to be provided with the guide sleeve extended downwardly on the partition, it can upper-lower seal sliding in the brake chamber
Be provided with main piston, be provided with inserting groove at the top of main piston, the guide sleeve can upper-lower seal sliding be plugged on it is described
In inserting groove, the bottom of the hollow sleeve passes through guide sleeve and is resisted against in the inserting groove；
Activity is plugged with connecting rod in the hollow sleeve, and the connecting rod is cooperated to be provided with mounting hole on the main piston, described
The bottom end of connecting rod is provided with the limited block matched with main piston, extends the top of hollow sleeve at the top of the connecting rod,
The top of connecting rod has screwed the second locking adjusting nut by helicitic texture, sets between the second locking adjusting nut and hollow sleeve
It is equipped with the second adjustment spring；
The top of the main piston, the lateral wall of guide sleeve, the bottom of partition and valve body inner wall be enclosed the master
Control chamber；
The lower part of the brake chamber is provided with and communicated with opening and closing chamber, and the side for being opened and closed chamber is provided with and communicated with gas source interface, is opened and closed chamber
Bottom is fixedly installed spool bracket, in spool bracket can upper-lower seal sliding be provided with spool, spool is located at the main work
The underface of plug is provided between spool and spool bracket and holds out against spring, hold out against spring push up spool make spool against
In the ladder platform of brake chamber and opening and closing chamber connectivity part, to block the connection of the brake chamber and gas source interface；
The opening and closing chamber is connected with the inflating port, and is provided with one-way valve structures on the interface channel of the two.
2. anti-freezing type multifunctional emergency brake valve according to claim 1, which is characterized in that locating for the pressurization control chamber
Body wall on be provided with first row stomata.
3. anti-freezing type multifunctional emergency brake valve according to claim 1, which is characterized in that valve locating for the brake chamber
Second row stomata is provided on body sidewall.
4. anti-freezing type multifunctional emergency brake valve according to claim 1, which is characterized in that pass through at the top of the valve body
Helicitic texture is removably provided with head protector.
5. anti-freezing type multifunctional emergency brake valve according to claim 1, which is characterized in that the main control chamber B and/or
Be provided with spacer in brake chamber C, the main piston and/or brake chamber charged piston respectively can upper-lower seal sliding setting each
From spacer in.
6. the application method of anti-freezing type multifunctional emergency brake valve, feature described in a kind of claim 1-5 any one exist
In including the following steps:
(1) in the state of initial, pressure source inwardly supplements compressed gas by inflating port, and compressed gas pushes down on unidirectionally
Valve, tower spring are compressed, and pressed gas enters in opening and closing chamber by the gap between check valve and valve body, are then connect by gas source
Mouth is drained into air accumulator, is completed the storage work of compressed gas, is prepared to provide the pressed gas of braking；
(2) brake modes control pressed gas is waited to enter in the first control air inlet and the second control air inlet by foot-operated, two
Tolerance between person can be complemented each other by Vertical Channel, guarantee that the abundance of pressure, a part of compressed gas enter master control
In chamber processed, give main piston one pressure moved downward, after the pressure overcomes resistance, main piston is moved down, and first
Adjustment spring and the second adjustment spring are in the state of compression, and push down on spool, after spool moves down and valve body
Between form the gap that releases for the compressed gas in air accumulator, the compressed gas in air accumulator successively connects by gas source
Mouth, opening and closing chamber, brake chamber and braking delivery outlet enter in brake piping, and then complete brake, later in each bullet
Under the action of power part, all components are resetted, and are prepared for next brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811317115.8A CN109278732A (en) | 2018-11-07 | 2018-11-07 | Anti-freezing type multifunctional emergency brake valve and application method |
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| CN201811317115.8A CN109278732A (en) | 2018-11-07 | 2018-11-07 | Anti-freezing type multifunctional emergency brake valve and application method |
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| CN201811317115.8A Pending CN109278732A (en) | 2018-11-07 | 2018-11-07 | Anti-freezing type multifunctional emergency brake valve and application method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111422179A (en) * | 2020-05-18 | 2020-07-17 | 河北神安汽车部件科技有限公司 | Internal-adjusting automatic-transformation proportional brake valve and use method thereof |
| CN112721900A (en) * | 2021-02-05 | 2021-04-30 | 眉山中车制动科技股份有限公司 | Flexible guide structure of railway vehicle emergency valve |
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| CN102167026A (en) * | 2011-04-07 | 2011-08-31 | 北京南车时代机车车辆机械有限公司 | Electric control dual-chamber relay valve |
| CN107901901A (en) * | 2017-12-05 | 2018-04-13 | 河北神安汽车部件科技有限公司 | Multi-functional adjusting emergency brake |
| CN209079879U (en) * | 2018-11-07 | 2019-07-09 | 河北神安汽车部件科技有限公司 | Anti-freezing type multifunctional emergency brake valve |
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| CN107901901A (en) * | 2017-12-05 | 2018-04-13 | 河北神安汽车部件科技有限公司 | Multi-functional adjusting emergency brake |
| CN209079879U (en) * | 2018-11-07 | 2019-07-09 | 河北神安汽车部件科技有限公司 | Anti-freezing type multifunctional emergency brake valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111422179A (en) * | 2020-05-18 | 2020-07-17 | 河北神安汽车部件科技有限公司 | Internal-adjusting automatic-transformation proportional brake valve and use method thereof |
| CN112721900A (en) * | 2021-02-05 | 2021-04-30 | 眉山中车制动科技股份有限公司 | Flexible guide structure of railway vehicle emergency valve |
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