CN112277907A - Novel driver's cabin can crouch and cut off gas and stop control device - Google Patents
Novel driver's cabin can crouch and cut off gas and stop control device Download PDFInfo
- Publication number
- CN112277907A CN112277907A CN202011213639.XA CN202011213639A CN112277907A CN 112277907 A CN112277907 A CN 112277907A CN 202011213639 A CN202011213639 A CN 202011213639A CN 112277907 A CN112277907 A CN 112277907A
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- Prior art keywords
- parking
- air
- operating rod
- port
- operating
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Classifications
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- 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
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/08—Brake-action initiating means for personal initiation hand actuated
- B60T7/10—Disposition of hand control
-
- 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
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
Abstract
The invention discloses a novel air-break brake control device capable of lying in a cab, which comprises a mounting seat and an operating rod, wherein the mounting seat is provided with a mounting groove communicated to the upper end surface of the mounting seat, and a parking port, an air inlet and an air release port which are arranged on the side part of the mounting seat at intervals from top to bottom and communicated to the mounting groove, the parking port is used for communicating with a parking brake, the air inlet is used for connecting an air source, and the air release port is used for connecting a quick release valve; the operating rod is movably arranged in the mounting groove along the vertical direction, so that the operating rod has an operating state that the upper end of the operating rod extends out of the mounting groove and a parking state that the operating rod is accommodated in the mounting groove, and the operating rod is provided with a communication channel; when the operating rod is in an operating state, the communication channel is communicated with the air inlet and the parking port, so that the parking brake is inflated, and the parking function is closed; when the operating rod is in a parking state, the communicating channel is communicated with the air leakage port and the parking port, so that the parking brake is deflated, and the parking function is started.
Description
Technical Field
The invention relates to the technical field of air-break brake control levers, in particular to a novel air-break brake control device for a cab.
Background
The air-break brake is a hand brake system widely applied to medium and large vehicles and is more common on commercial vehicles. The brake system is in a normal braking state when a vehicle stops, and the driver can drive only by releasing the brake through the air-cut brake operating lever when driving. The air-break brake operating lever is usually arranged at the right hand side of the driver and extends upwards for a distance of 100 mm from the driver seat, so that the air-break brake operating lever is convenient for the driver to operate and control during driving. However, when a driver in a long-distance driving needs to lie in the cab for rest, the air-cut brake operating lever can seriously affect the space for the driver to lie flat, so that the driver needs to buy a half cab to lie flat for rest.
Disclosure of Invention
The invention mainly aims to provide a novel horizontal air-break brake control device for a cab, and aims to solve the problem that the rest of a driver is influenced by a traditional air-break brake control lever.
In order to achieve the purpose, the invention provides a novel air-break brake control device for a cab, which comprises:
the mounting seat is provided with a mounting groove communicated to the upper end face of the mounting seat, and a parking port, an air inlet and an air release port which are arranged on the side portion of the mounting seat at intervals in the vertical direction and communicated to the mounting groove, wherein the parking port is used for communicating with a parking brake, the air inlet is used for connecting an air source, and the air release port is used for connecting a quick release valve; and the number of the first and second groups,
the operating rod is movably arranged in the mounting groove in the vertical direction, so that the operating rod has an operating state that the upper end of the operating rod extends out of the mounting groove and a parking state that the operating rod is accommodated in the mounting groove, and a communication channel is arranged on the operating rod;
when the operating rod is in the operating state, the communication channel is communicated with the air inlet and the parking port, so that a parking brake is inflated, and a parking function is closed; the operating rod is in the parking state, the communicating channel is communicated with the air leakage port and the parking port, so that the parking brake is deflated, and the parking function is started.
Optionally, the novel driver's cabin can crouch and cut off gas and stop controlling means still includes:
and the limiting assembly is used for limiting and fixing the operating rod on the mounting seat when the operating rod is in the operating state or the parking state.
Optionally, the limiting assembly comprises a clamping groove and an elastic convex part, one of the clamping groove and the elastic convex part is arranged on the peripheral wall of the mounting groove, and the other is arranged on the peripheral wall of the operating rod, so that when in the operating state or the parking state, the clamping groove clamps the elastic convex part to limit and fix the operating rod on the mounting seat.
Optionally, the clamping groove and the elastic convex part are distributed along the circumferential direction of the mounting groove in a plurality.
Optionally, the limiting assembly comprises a ball and an annular groove, the annular groove is arranged in the mounting groove, and the ball is slidably mounted in the annular groove;
the upper end and the lower end of the annular groove are provided with limiting grooves, and the limiting grooves are used for clamping the balls passing through in a limiting mode so that the operating rod is limited and fixed on the mounting seat when the operating rod is in the operating state or the parking state.
Optionally, the novel driver's cabin can crouch and cut off gas and stop controlling means still includes:
the elastic reset piece is arranged between the mounting groove and the operating rod, and the two opposite ends of the elastic reset piece are respectively abutted against the bottom of the mounting groove and the bottom of the operating rod.
Optionally, an annular stop portion is convexly formed on a side wall of the upper end of the operating rod, and an annular matching portion is formed at the position, corresponding to the annular stop portion, of the mounting groove, so that when the operating rod moves upwards, the operating rod is stopped from being separated from the mounting groove.
Optionally, the air inlet the disappointing mouth with the parking mouth is laid in proper order, the mounting groove is relative the air inlet the parking mouth with one side of disappointing is provided with the groove of breathing freely, the intercommunication passageway includes to setting up to link up from top to bottom the first intercommunication passageway, second intercommunication passageway and the third intercommunication passageway of action bars, with the action bars is in operating condition, second intercommunication passageway intercommunication the groove of breathing freely with the air inlet, third intercommunication passageway intercommunication the groove of breathing freely with the parking mouth, and the action bars is in the parking state, first intercommunication passageway intercommunication the groove of breathing freely with the mouth of breathing freely, second intercommunication passageway intercommunication the groove of breathing freely with the parking mouth.
Optionally, the air inlet the mouth of parking with the mouth of losing heart is laid equidistantly in proper order, the intercommunication passageway is including being located the first export and the second export of the mutual intercommunication in action bars surface, just the first export with the interval of second export equals the mouth of parking with the interval of losing heart, with the action bars is in operating condition, first export intercommunication the air inlet, the second export intercommunication the mouth of parking, with the intercommunication the air inlet with the mouth of parking, and the action bars is in the parking state, first export intercommunication the mouth of parking, the second export intercommunication lose heart, with the intercommunication the mouth of parking with lose heart.
In addition, the invention also provides a vehicle, which is applied with any one of the novel cab horizontal air-break brake operating devices.
According to the technical scheme, the operating rod is arranged in the retractable mode, and when the automobile is in a parking state, the operating rod is retracted into the mounting groove, so that the operating rod cannot exceed the plane of the driver seat when the air-break brake works, a driver can lie down in the driving cab for rest, and the rest problem of long-distance driving of single-row vehicles or half-row vehicles by two persons is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic view of an embodiment of a novel cab horizontal air-break brake operating device provided by the invention in an operating state;
FIG. 2 is a schematic view of FIG. 1 in a park condition;
FIG. 3 is a schematic view of the annular groove of FIG. 1;
fig. 4 is a view showing an embodiment of the communicating channel provided by the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The air-break brake is a hand brake system widely applied to medium and large vehicles and is more common on commercial vehicles. The brake system is in a normal braking state when a vehicle stops, and the driver can drive only by releasing the brake through the air-cut brake operating lever when driving. The air-break brake operating lever is usually arranged at the right hand side of the driver and extends upwards for a distance of 100 mm from the driver seat, so that the air-break brake operating lever is convenient for the driver to operate and control during driving. However, when a driver in a long-distance driving needs to lie in the cab for rest, the air-cut brake operating lever can seriously affect the space for the driver to lie flat, so that the driver needs to buy a half cab to lie flat for rest.
In view of this, the present invention provides a novel cab horizontal air-break brake operating device 100, fig. 1 to 3 are an embodiment of the novel cab horizontal air-break brake operating device 100 provided by the present invention, and referring to fig. 1 to 3, the novel cab horizontal air-break brake operating device 100 includes a mounting seat 10 and an operating rod 20, the mounting seat is provided with a mounting groove communicated to an upper end surface of the mounting seat 10, and a parking port 11, an air inlet 12 and an air outlet 13 which are arranged at a lateral portion of the mounting seat 10 along an up-down direction at intervals and communicated to the mounting groove, the parking port 11 is used for communicating with a parking brake, the air inlet 12 is used for connecting an air source, the air outlet 13 is used for connecting a quick air outlet valve, it should be noted that the air source may be an air source inside a vehicle body or an external air source, and no limitation is made herein, the parking brake will shut down a parking function when being inflated, the parking function is activated when the air is deflated.
The operating rod 20 is movably mounted in the mounting groove in the vertical direction, so that the operating rod 20 has an operating state in which the upper end extends out of the mounting groove and a parking state in which the operating rod is accommodated in the mounting groove, and the operating rod 20 is provided with a communication channel 21; wherein, in the operating state of the operating lever 20, the communication passage 21 communicates the air inlet 12 and the parking port 11 to inflate the parking brake and turn off the parking function; when the operating rod 20 is in the parking state, the communication passage 21 communicates the air release port 13 and the parking port 11, so that the parking brake is deflated and the parking function is turned on. It should be noted that the movement of the operation lever 20 is performed by a manual force.
In the technical scheme of this embodiment, through the setting of can withdrawing into with action bars 20, when parking state, with in action bars 20 income mounting groove, realize that the air-break is stopped and can not surpass driver seat plane at the during operation control rod, realize that the driver lies flat in the driver's cabin and has a rest, has solved the rest problem of single row vehicle or double long-distance driving of row half vehicle.
In addition, in order to limit and fix the operating rod 20 to the mounting seat 10 when the operating rod 20 is in the operating state or the parking state, the novel cab horizontal air-break brake operating device 100 further includes: a stop assembly 30. Specifically, the limiting component 30 may be a retaining groove and an elastic protrusion, one of the retaining groove and the elastic protrusion is disposed on the peripheral wall of the mounting groove, and the other is disposed on the peripheral wall of the operating rod 20, so that in the operating state or the parking state, the retaining groove retains the elastic protrusion to limit and fix the operating rod 20 on the mounting seat 10.
Of course, the limiting component 30 may also be a ball and an annular groove 31, the annular groove 31 is disposed in the mounting groove, and the ball is slidably mounted in the annular groove 31;
the upper end and the lower end of the annular groove 31 are provided with a limiting groove 32, and the limiting groove 32 is used for clamping the ball passing through the limiting groove so as to limit and fix the operating rod 20 on the mounting seat 10 when the operating rod 20 is in the operating state or the parking state.
In order to automatically enter the operating state when the operating lever 20 is out of the parking state, the new cab horizontal gas cutoff brake operating device 100 further includes: elastic reset piece 40, elastic reset piece 40 locates the mounting groove with between the action bars 20, just the relative both ends of elastic reset piece 40 butt respectively the bottom of mounting groove with the bottom setting of action bars 20 to under elastic reset piece 40's effect, let when action bars 20 break away from the parking state, automatic entering operating condition.
In order to prevent the operating rod 20 from being drawn out, an annular stopper 22 is convexly formed on a side wall of an upper end of the operating rod, and an annular fitting portion 14 is formed at the position of the mounting groove corresponding to the annular stopper 22 to stop the operating rod 20 from being separated from the mounting groove when the operating rod 20 moves upwards.
The arrangement of the air intake port 12, the air release port 13, the parking port 11 and the communication passage 21 may be various, and referring to fig. 1 and 2, one of them is: the air inlet 12 the mouth 13 that loses heart with the mouth 11 that parks is laid in proper order, the mounting groove is relative the air inlet 12 the mouth 11 that parks with one side of losing heart is provided with the groove of breathing freely, intercommunication passageway 21 includes to set up from top to bottom and link up the first intercommunication passageway 23, second intercommunication passageway 24 and the third intercommunication passageway 25 of action bars 20, with action bars 20 is in operating condition, second intercommunication passageway 24 intercommunication the groove of breathing freely with air inlet 12, third intercommunication passageway 25 intercommunication the groove of breathing freely with the mouth 11 that parks, and action bars 20 is in the parking condition, first intercommunication passageway 23 intercommunication the groove of breathing freely with mouthful 13, second intercommunication passageway 24 intercommunication the groove of breathing freely with mouthful 11 that parks.
Referring to fig. 4, it is also possible that the air inlet 12, the parking port 11 and the air release port 13 are sequentially arranged at equal intervals, the communication channel 21 includes a first outlet 26 and a second outlet 27 which are located on the surface of the operation rod 20 and are communicated with each other, and the interval between the first outlet 26 and the second outlet 27 is equal to the interval between the parking port 11 and the air release port 13, so that when the operation rod 20 is in the operation state, the first outlet 26 is communicated with the air inlet 12, the second outlet 27 is communicated with the parking port 11 to be communicated with the air inlet 12 and the parking port 11, and when the operation rod 20 is in the parking state, the first outlet 26 is communicated with the parking port 11, and the second outlet 27 is communicated with the air release port 13 to be communicated with the parking port 11 and the air release port 13.
In addition, the invention also provides a vehicle, which is applied with any one of the novel cab horizontal air-break brake operating devices.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a novel driver's cabin can crouch and break gas and stop controlling device which characterized in that includes:
the mounting seat is provided with a mounting groove communicated to the upper end face of the mounting seat, and a parking port, an air inlet and an air release port which are arranged on the side portion of the mounting seat at intervals in the vertical direction and communicated to the mounting groove, wherein the parking port is used for communicating with a parking brake, the air inlet is used for connecting an air source, and the air release port is used for connecting a quick release valve; and the number of the first and second groups,
the operating rod is movably arranged in the mounting groove in the vertical direction, so that the operating rod has an operating state that the upper end of the operating rod extends out of the mounting groove and a parking state that the operating rod is accommodated in the mounting groove, and a communication channel is arranged on the operating rod;
when the operating rod is in the operating state, the communication channel is communicated with the air inlet and the parking port, so that a parking brake is inflated, and a parking function is closed; the operating rod is in the parking state, the communicating channel is communicated with the air leakage port and the parking port, so that the parking brake is deflated, and the parking function is started.
2. The novel cab horizontal gas-break brake operating device as claimed in claim 1, wherein the novel cab horizontal gas-break brake operating device further comprises:
and the limiting assembly is used for limiting and fixing the operating rod on the mounting seat when the operating rod is in the operating state or the parking state.
3. The novel cab horizontal air-break brake operating device as claimed in claim 2, wherein the limiting component comprises a retaining groove and an elastic projection, one of the retaining groove and the elastic projection is disposed on the peripheral wall of the mounting groove, and the other is disposed on the peripheral wall of the operating rod, so that in the operating state or the parking state, the retaining groove retains the elastic projection to limit and fix the operating rod on the mounting seat.
4. The novel cab horizontal air-break brake operating device as claimed in claim 3, wherein the retaining groove and the elastic convex part are distributed in plurality along the circumferential direction of the mounting groove.
5. The novel cab horizontal air-break brake operating device as claimed in claim 2, wherein the limiting component comprises a ball and an annular groove, the annular groove is arranged in the mounting groove, and the ball is slidably mounted in the annular groove;
the upper end and the lower end of the annular groove are provided with limiting grooves, and the limiting grooves are used for clamping the balls passing through in a limiting mode so that the operating rod is limited and fixed on the mounting seat when the operating rod is in the operating state or the parking state.
6. The novel cab horizontal gas-break brake operating device as claimed in claim 1, wherein the novel cab horizontal gas-break brake operating device further comprises:
the elastic reset piece is arranged between the mounting groove and the operating rod, and the two opposite ends of the elastic reset piece are respectively abutted against the bottom of the mounting groove and the bottom of the operating rod.
7. The novel horizontal air-break brake operating device for the cab as claimed in claim 1, wherein an annular stop portion is convexly formed on a side wall of the upper end of the operating lever, and an annular engaging portion is formed on the mounting groove corresponding to the annular stop portion, so as to stop the operating lever from being separated from the mounting groove when the operating lever moves upwards.
8. The novel cab horizontal air-break brake operating device according to claim 1, wherein the air inlet, the air release port and the parking port are sequentially arranged, an air exchange groove is formed in one side of the mounting groove opposite to the air inlet, the parking port and the air release port, the communication channel comprises a first communication channel, a second communication channel and a third communication channel which are arranged in an up-and-down direction and penetrate through the operating rod, so that the operating rod is in the operating state, the second communication channel is communicated with the air exchange groove and the air inlet, the third communication channel is communicated with the air exchange groove and the parking port, and the operating rod is in the parking state, the first communication channel is communicated with the air exchange groove and the air release port, and the second communication channel is communicated with the air exchange groove and the parking port.
9. The novel cab horizontal air-break brake operating device as claimed in claim 1, wherein the air inlet, the parking port and the air release port are sequentially arranged at equal intervals, the communication channel comprises a first outlet and a second outlet which are located on the surface of the operating rod and are communicated with each other, the interval between the first outlet and the second outlet is equal to the interval between the parking port and the air release port, the first outlet is communicated with the air inlet when the operating rod is in the operating state, the second outlet is communicated with the parking port to be communicated with the air inlet and the parking port, and the first outlet is communicated with the parking port and the second outlet is communicated with the air release port to be communicated with the parking port and the air release port when the operating rod is in the parking state.
10. A vehicle, characterized in that a novel cab horizontal air break brake operating device according to any one of claims 1 to 9 is applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011213639.XA CN112277907B (en) | 2020-11-02 | 2020-11-02 | Air-break brake operating device for driver's cab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011213639.XA CN112277907B (en) | 2020-11-02 | 2020-11-02 | Air-break brake operating device for driver's cab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112277907A true CN112277907A (en) | 2021-01-29 |
| CN112277907B CN112277907B (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011213639.XA Active CN112277907B (en) | 2020-11-02 | 2020-11-02 | Air-break brake operating device for driver's cab |
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| Country | Link |
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| CN (1) | CN112277907B (en) |
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| BE716769A (en) * | 1967-06-19 | 1968-12-02 | ||
| DE3444857A1 (en) * | 1984-12-08 | 1986-06-12 | Graubremse Gmbh, 6900 Heidelberg | Control valve |
| CN1519150A (en) * | 2003-01-13 | 2004-08-11 | ������������ʽ���� | Brake driving control valve |
| EP2371642A1 (en) * | 2010-03-24 | 2011-10-05 | Studio Tecnico 6 M S.R.L. | Flow adjustment device and brake ciruit including such a flow adjustment device |
| CN202283914U (en) * | 2011-08-03 | 2012-06-27 | 石家庄中煤装备制造股份有限公司 | Manual brake valve of rubber wheel vehicle |
| CN203888778U (en) * | 2014-06-17 | 2014-10-22 | 浙江诸暨东港液压机械有限公司 | Novel hand control valve |
| CN108189827A (en) * | 2018-01-19 | 2018-06-22 | 北汽福田汽车股份有限公司 | Combined type parking valve and with its vehicle |
| CN108973969A (en) * | 2018-07-26 | 2018-12-11 | 宁波日安精工机械有限公司 | A kind of high leakproofness hydraulic vehicle braking valve |
| CN109703543A (en) * | 2018-12-29 | 2019-05-03 | 山东吉利达智能装备集团有限公司 | Braking valve for vehicle |
| CN110712638A (en) * | 2018-07-13 | 2020-01-21 | 威伯科欧洲有限责任公司 | Parking release valve |
-
2020
- 2020-11-02 CN CN202011213639.XA patent/CN112277907B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE716769A (en) * | 1967-06-19 | 1968-12-02 | ||
| DE3444857A1 (en) * | 1984-12-08 | 1986-06-12 | Graubremse Gmbh, 6900 Heidelberg | Control valve |
| CN1519150A (en) * | 2003-01-13 | 2004-08-11 | ������������ʽ���� | Brake driving control valve |
| EP2371642A1 (en) * | 2010-03-24 | 2011-10-05 | Studio Tecnico 6 M S.R.L. | Flow adjustment device and brake ciruit including such a flow adjustment device |
| CN202283914U (en) * | 2011-08-03 | 2012-06-27 | 石家庄中煤装备制造股份有限公司 | Manual brake valve of rubber wheel vehicle |
| CN203888778U (en) * | 2014-06-17 | 2014-10-22 | 浙江诸暨东港液压机械有限公司 | Novel hand control valve |
| CN108189827A (en) * | 2018-01-19 | 2018-06-22 | 北汽福田汽车股份有限公司 | Combined type parking valve and with its vehicle |
| CN110712638A (en) * | 2018-07-13 | 2020-01-21 | 威伯科欧洲有限责任公司 | Parking release valve |
| CN108973969A (en) * | 2018-07-26 | 2018-12-11 | 宁波日安精工机械有限公司 | A kind of high leakproofness hydraulic vehicle braking valve |
| CN109703543A (en) * | 2018-12-29 | 2019-05-03 | 山东吉利达智能装备集团有限公司 | Braking valve for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112277907B (en) | 2021-07-20 |
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