CN113500988A - Electric control exhaust brake device - Google Patents
Electric control exhaust brake device Download PDFInfo
- Publication number
- CN113500988A CN113500988A CN202110918036.8A CN202110918036A CN113500988A CN 113500988 A CN113500988 A CN 113500988A CN 202110918036 A CN202110918036 A CN 202110918036A CN 113500988 A CN113500988 A CN 113500988A
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- chamber
- piston
- valve
- air
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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
- 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
- B60T15/025—Electrically controlled valves
- B60T15/027—Electrically controlled valves in pneumatic systems
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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
- 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
- B60T15/04—Driver's valves
Abstract
An electric control exhaust brake device comprises an upper cover and a valve body which are connected with each other, wherein one side of the valve body is provided with an electromagnetic valve; the upper cover is of a hollow structure, a first exhaust hole is formed in the upper portion of the upper cover, a piston is arranged below the upper cover, and a second spring is arranged between the first exhaust hole and the piston and located inside the upper cover; a piston through hole penetrates through the middle part of the piston, a second chamber is arranged below the piston, a valve is arranged in the second chamber, a sealing bolt is arranged at the bottom of the second chamber, the upper end of the valve abuts against the lower end of the piston, and a first spring is arranged between the valve and the sealing bolt; the brake device has the advantages of shortening the braking time, reducing the gas consumption and improving the braking efficiency.
Description
The technical field is as follows:
the invention relates to the technical field of automobile braking, in particular to an electric control exhaust braking device.
Background art:
the existing trailer brake adopts air supply brake, namely a control valve is used for controlling a relay valve, and then air in an air storage tank enters a control chamber to implement brake. The braking is delayed because the transmission distance is long for controlling the air to flow from the main vehicle to the trailer, and the air is wasted because of the overlong pipeline. The existing air-break brake implements emergency braking by utilizing the stored energy of a brake chamber spring only when an air storage pipeline bursts suddenly or an air storage tank is empty, and can not carry out service braking during normal running.
The invention content is as follows:
in order to solve the problems and overcome the defects of the prior art, the invention provides the electric control exhaust brake device which shortens the braking time, reduces the gas consumption and improves the braking efficiency.
In order to achieve the purpose, the invention provides an electric control exhaust brake device which comprises an upper cover and a valve body which are connected with each other, wherein one side of the valve body is provided with an electromagnetic valve; the upper cover is of a hollow structure, a first exhaust hole is formed in the upper portion of the upper cover, a piston is arranged below the upper cover, and a second spring is arranged between the first exhaust hole and the piston and located inside the upper cover; a piston through hole penetrates through the middle part of the piston, a second chamber is arranged below the piston, a valve is arranged in the second chamber, a sealing bolt is arranged at the bottom of the second chamber, the upper end of the valve abuts against the lower end of the piston, and a first spring is arranged between the valve and the sealing bolt;
a second exhaust hole is formed above the electromagnetic valve, a first air inlet is formed below the electromagnetic valve, and the second exhaust hole and the first air inlet are communicated with the electromagnetic valve;
a first chamber and a third chamber are sequentially arranged below the piston, one end of the first chamber is communicated with the electromagnetic valve, the third chamber is communicated with the second chamber, and the other end of the third chamber is communicated with an air outlet; the second chamber is communicated with a second air inlet, and the second chamber, the second air inlet and the first air inlet are all communicated.
Further, a second sealing ring is arranged between the first chamber and the third chamber.
Furthermore, the solenoid valve includes the movable iron core, and one end of first cavity and the movable iron core edge intercommunication of solenoid valve.
Furthermore, the second air inlet is connected with an air storage cylinder, and the air outlet is connected with an air-cut-off brake air chamber.
Further, a first sealing ring is arranged between the piston and the valve body.
The invention has the beneficial effects that:
the electric control exhaust brake device provided by the invention has the advantages of shortening the braking time, reducing the gas consumption and improving the braking efficiency, and the service braking is realized by utilizing the air-off brake of the trailer, so that the braking time is shortened, and the gas consumption is reduced. The brake efficiency is improved, the safety of the vehicle is guaranteed, the safety of the vehicle is improved, and exhaust brake can be realized by using the control gas during power failure.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
in the drawings: 1. the gas valve comprises an upper cover, 2, a valve body, 3, an electromagnetic valve, 4, a piston, 5, a valve, 6, a sealing bolt, 7, a first spring, 8, a second spring, 9, a first sealing ring, 10, a second sealing ring, 11, a first exhaust hole, 12, a second exhaust hole, 13, a first gas inlet, 14, a second gas inlet, 15, a gas outlet, 16, a piston through hole, 21, a first chamber, 22, a second chamber, 23 and a third chamber.
The specific implementation mode is as follows:
in order to make the implementation objects, technical solutions and advantages of the present invention more clear, the present invention will be described in more detail with reference to the accompanying fig. 1 of the present invention.
The invention provides an electric control exhaust brake device, which comprises an upper cover 1 and a valve body 2 which are connected with each other, wherein one side of the valve body 2 is provided with an electromagnetic valve 3; the upper cover 1 is of a hollow structure, a first exhaust hole 11 is formed in the upper portion of the upper cover 1, a piston 4 is arranged below the upper cover 1, a second spring 8 is arranged between the first exhaust hole 11 and the piston 4, and the second spring 8 is located inside the upper cover 1; a piston through hole 16 is arranged in the middle of the piston 4 in a penetrating manner, a second chamber 22 is arranged below the piston 4, a valve 5 is arranged in the second chamber 22, a sealing bolt 6 is arranged at the bottom of the second chamber 22, the upper end of the valve 5 abuts against the lower end of the piston 4, and a first spring 7 is arranged between the valve 5 and the sealing bolt 6; a second exhaust hole 12 is formed above the electromagnetic valve 3, a first air inlet 13 is formed below the electromagnetic valve 3, and the second exhaust hole 12 and the first air inlet 13 are communicated with the electromagnetic valve 3; a first chamber 21 and a third chamber 23 are sequentially arranged below the piston 4, one end of the first chamber 21 is communicated with the electromagnetic valve 3, the third chamber 23 is communicated with the second chamber 22, and the other end of the third chamber 23 is communicated with an air outlet 15; the second chamber 22 is communicated with the second air inlet 14, and the second chamber 22, the second air inlet 14 and the first air inlet 13 are all communicated; a second sealing ring 10 is arranged between the first chamber 21 and the third chamber 23; the electromagnetic valve 3 comprises a movable iron core, and one end of the first cavity 21 is communicated with the edge of the movable iron core of the electromagnetic valve 3; the second air inlet 14 is connected with an air storage cylinder, and the air outlet 15 is connected with an air-cut brake air chamber; a first sealing ring 9 is arranged between the piston 4 and the valve body 2.
One of the embodiments of the invention is as follows:
the invention provides an electric control exhaust brake device, which comprises an upper cover 1 and a valve body 2 which are connected through threads, wherein a second spring 8 is arranged in the upper cover 1, the lower end face of the second spring 8 is propped against the upper surface of a piston 4, and the bottom of the piston 4 is provided with a first cavity 21 which is communicated with the lower end of a movable iron core of an electromagnetic valve 3. The lower end of the valve body 2 is provided with a second chamber, a valve 5, a first spring 7 and a sealing bolt 6 are arranged in the second chamber, the upper end of the valve 5 is in contact with the lower end of the piston 4, the upper end face and the lower end face of the first spring 7 are respectively abutted against the valve 5 and the sealing bolt 6, and the valve 5 is tightly attached to the lower end of the piston 4 by means of the elastic force of the first spring 7.
Wherein, the first exhaust hole 11 is communicated with the external atmosphere, the second exhaust hole 12 at the upper end of the electromagnetic valve 3 can be communicated with the control gas of the main vehicle or communicated with the atmosphere, and the first air inlet 13 at the lower end of the electromagnetic valve 3 is communicated with the air storage cylinder through the second air inlet 14. The first chamber 21 communicates with the moving-iron bottom of the solenoid valve 3. The third chamber 23 is communicated with the air-break brake air chamber through the air outlet 15, the second chamber 22 is communicated with the air storage cylinder through the second air inlet 14, and meanwhile, the second chamber 22 is communicated with the third chamber 23.
The solenoid valve 3 is connected in parallel with the brake lamp circuit.
The working principle situation can be divided into:
when the first exhaust hole and the second exhaust hole 12 are communicated with the main control gas phase:
1. under the normal condition of circuit, after the driver steps on the brake pedal, solenoid valve 3 begins to work, and 3 upper ends of solenoid valve are closed, and the lower extreme is opened, and the gas in the gas receiver passes through second air inlet 14 and first air inlet 13, and the bottom of solenoid valve 3 gets into first cavity 21, promotes piston 4 and shifts up, and valve 5 shifts up together under the effect of first spring 7 elasticity. When the valve 5 contacts the valve body, the air path between the second chamber 22 and the air outlet 15 is disconnected, and the connection with the air-break brake air chamber is disconnected. The piston 4 moves upwards continuously to leave the valve 5, and the air in the air-break brake air chamber passes through the third chamber 23, the exhaust piston through hole 16 and the first exhaust hole 11 and is exhausted to the atmosphere, so that the purpose of braking is achieved.
When a driver leaves the brake pedal by foot, the electromagnetic valve stops working, the upper end of the electromagnetic valve is opened, the lower end of the electromagnetic valve is closed, gas in the first chamber 21 is exhausted along with control gas through the electromagnetic valve 3, the piston 4 moves downwards under the action of the elastic force of the second spring 8 to contact the valve 5, the gas path between the third chamber 23 and the piston through hole 16 is disconnected, the valve 5 is pressed by the second spring 8 to continuously move downwards, the valve 5 leaves the valve body, the third chamber 23 is communicated with the second chamber 22, and the gas in the second chamber 22 enters the gas-cutoff brake chamber through the first chamber 21 to release braking.
2. In a circuit fault or no-electricity state, after a driver steps on a brake pedal, the electromagnetic valve 3 does not work, the upper end of the electromagnetic valve 3 is opened, the lower end of the electromagnetic valve 3 is closed, automobile control gas enters the bottom of the electromagnetic valve 3 through the first exhaust hole 11 and enters the first cavity 21 to push the piston 4 to move upwards, and the valve 5 moves upwards together under the action of the elastic force of the first spring 7. When the valve 5 contacts the valve body, the air path between the second chamber 22 and the air outlet 15 is disconnected, and the connection with the air-break brake air chamber is disconnected. The piston 4 moves upwards continuously, leaves the valve 5, and the air in the air-break brake air chamber enters the third chamber 23 through the air outlet 15, passes through the air path 16, and is exhausted to the atmosphere through the first exhaust hole 11, so that the purpose of braking is achieved.
When the driver leaves the brake pedal, the gas in the first chamber 21 is exhausted along with the control gas through the electromagnetic valve 3, the piston 4 moves downwards under the action of the elastic force of the second spring 8, contacts the valve 5, the gas path of the third chamber 23 and the piston through hole 16 is closed, the second spring 8 presses the valve to move downwards continuously, the valve leaves the valve body, the second chamber 22 is communicated with the third chamber 23, and the gas in the second chamber 22 enters the gas-break brake chamber through the third chamber 23 to release braking.
Second, the case where the second exhaust hole 12 is directly communicated with the atmosphere:
under the normal condition of circuit, after the driver steps on the brake pedal, solenoid valve 3 begins to work, and 3 upper ends of solenoid valve are closed, and the lower extreme is opened, and the gas in the gas receiver passes through second air inlet 14 and first air inlet 13, and the bottom of solenoid valve 3 gets into first cavity 21, promotes piston 4 and shifts up, and valve 5 shifts up together under the effect of first spring 7 elasticity. When the valve 5 contacts the valve body, the air path between the second chamber 22 and the air outlet 15 is disconnected, and the connection with the air-break brake air chamber is disconnected. The piston 4 moves upwards continuously to leave the valve 5, and the air in the air-break brake air chamber passes through the third chamber 23, the exhaust piston through hole 16 and the first exhaust hole 11 and is exhausted to the atmosphere, so that the purpose of braking is achieved.
When a driver leaves the brake pedal by foot, the electromagnetic valve stops working, the upper end of the electromagnetic valve is opened, the lower end of the electromagnetic valve is closed, gas in the first chamber 21 is exhausted along with control gas through the electromagnetic valve 3, the piston 4 moves downwards under the action of the elastic force of the second spring 8 to contact the valve 5, the gas path between the third chamber 23 and the piston through hole 16 is disconnected, the valve 5 is pressed by the second spring 8 to continuously move downwards, the valve 5 leaves the valve body, the third chamber 23 is communicated with the second chamber 22, and the gas in the second chamber 22 enters the gas-cutoff brake chamber through the first chamber 21 to release braking.
The electric control exhaust brake device can be matched with most trailer relay valves or ABS (anti-lock brake system) for use, so that a better braking effect is realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An electrically controlled exhaust brake device, characterized by: the electromagnetic valve comprises an upper cover (1) and a valve body (2) which are connected with each other, wherein an electromagnetic valve (3) is arranged on one side of the valve body (2); the upper cover (1) is of a hollow structure, a first exhaust hole (11) is formed in the upper portion of the upper cover (1), a piston (4) is arranged below the upper cover (1), a second spring (8) is arranged between the first exhaust hole (11) and the piston (4), and the second spring (8) is located inside the upper cover (1); a piston through hole (16) penetrates through the middle of the piston (4), a second chamber (22) is arranged below the piston (4), a valve (5) is arranged in the second chamber (22), a sealing bolt (6) is arranged at the bottom of the second chamber (22), the upper end of the valve (5) abuts against the lower end of the piston (4), and a first spring (7) is arranged between the valve (5) and the sealing bolt (6);
a second exhaust hole (12) is formed above the electromagnetic valve (3), a first air inlet (13) is formed below the electromagnetic valve (3), and the second exhaust hole (12) and the first air inlet (13) are communicated with the electromagnetic valve (3);
a first chamber (21) and a third chamber (23) are sequentially arranged below the piston (4), one end of the first chamber (21) is communicated with the electromagnetic valve (3), the third chamber (23) is communicated with the second chamber (22), and the other end of the third chamber (23) is communicated with an air outlet (15); the second chamber (22) is communicated with a second air inlet (14), and the second chamber (22), the second air inlet (14) and the first air inlet (13) are communicated.
2. The electrically controlled exhaust brake device according to claim 1, characterized in that: a second sealing ring (10) is arranged between the first cavity (21) and the third cavity (23).
3. The electrically controlled exhaust brake device according to claim 1, characterized in that: the electromagnetic valve (3) comprises a movable iron core, and one end of the first cavity (21) is communicated with the edge of the movable iron core of the electromagnetic valve (3).
4. The electrically controlled exhaust brake device according to claim 1, characterized in that: the second air inlet (14) is connected with an air storage cylinder, and the air outlet (15) is connected with an air-break brake air chamber.
5. The electrically controlled exhaust brake device according to claim 1, characterized in that: a first sealing ring (9) is arranged between the piston (4) and the valve body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110918036.8A CN113500988A (en) | 2021-08-11 | 2021-08-11 | Electric control exhaust brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110918036.8A CN113500988A (en) | 2021-08-11 | 2021-08-11 | Electric control exhaust brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113500988A true CN113500988A (en) | 2021-10-15 |
Family
ID=78015369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110918036.8A Pending CN113500988A (en) | 2021-08-11 | 2021-08-11 | Electric control exhaust brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113500988A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1025252A (en) * | 1963-03-21 | 1966-04-06 | Bendix Westinghouse Automotive | Fluid flow control valve for braking systems |
| CN2754950Y (en) * | 2004-06-22 | 2006-02-01 | 李金龙 | Emergent relay valve and trailer brake controller therewith |
| DE102013017875A1 (en) * | 2013-10-26 | 2015-05-21 | Wabco Gmbh | Relay valve, valve device and vehicle with it |
| CN105539415A (en) * | 2016-01-04 | 2016-05-04 | 瑞立集团瑞安汽车零部件有限公司 | EBS trailer valve |
| CN205239479U (en) * | 2015-11-11 | 2016-05-18 | 浙江万安科技股份有限公司 | Automatically controlled emergency brake valve |
| CN105966385A (en) * | 2016-05-27 | 2016-09-28 | 山东康健汽车配件有限公司 | Electronic brakeforce distribution (EBD) valve |
| CN210554749U (en) * | 2019-10-08 | 2020-05-19 | 山东康健汽车配件科技股份有限公司 | Controllable advance braking device for trailer |
-
2021
- 2021-08-11 CN CN202110918036.8A patent/CN113500988A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1025252A (en) * | 1963-03-21 | 1966-04-06 | Bendix Westinghouse Automotive | Fluid flow control valve for braking systems |
| CN2754950Y (en) * | 2004-06-22 | 2006-02-01 | 李金龙 | Emergent relay valve and trailer brake controller therewith |
| DE102013017875A1 (en) * | 2013-10-26 | 2015-05-21 | Wabco Gmbh | Relay valve, valve device and vehicle with it |
| CN205239479U (en) * | 2015-11-11 | 2016-05-18 | 浙江万安科技股份有限公司 | Automatically controlled emergency brake valve |
| CN105539415A (en) * | 2016-01-04 | 2016-05-04 | 瑞立集团瑞安汽车零部件有限公司 | EBS trailer valve |
| CN105966385A (en) * | 2016-05-27 | 2016-09-28 | 山东康健汽车配件有限公司 | Electronic brakeforce distribution (EBD) valve |
| CN210554749U (en) * | 2019-10-08 | 2020-05-19 | 山东康健汽车配件科技股份有限公司 | Controllable advance braking device for trailer |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211015 |
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| RJ01 | Rejection of invention patent application after publication |