CN210978304U - Electric coupling type brake control valve for commercial vehicle - Google Patents
Electric coupling type brake control valve for commercial vehicle Download PDFInfo
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- CN210978304U CN210978304U CN201921950182.3U CN201921950182U CN210978304U CN 210978304 U CN210978304 U CN 210978304U CN 201921950182 U CN201921950182 U CN 201921950182U CN 210978304 U CN210978304 U CN 210978304U
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Abstract
The utility model relates to the technical field of vehicle control, and discloses an electric coupling type brake control valve for a commercial vehicle, which comprises a high-speed air inlet valve, a high-speed exhaust valve, a one-way valve and a relay valve, wherein the high-speed air inlet valve and the high-speed exhaust valve adopt a slide valve structure and comprise a valve seat, a valve core and a return spring; the one-way valve comprises a valve seat, a valve core and a return spring; the relay valve comprises an upper valve body and a lower valve body; through integrated check valve, high-speed admission valve, high-speed discharge valve and relay valve to modular form design and equipment, greatly reduced the manufacturing and the processing degree of difficulty of valve, can effectively reduce manufacturing and processing cost, convenient to use and good reliability.
Description
Technical Field
The utility model relates to a vehicle control technical field especially relates to an electric coupling formula brake control valve for commercial vehicle.
Background
With the development of the automatic driving technology, the requirements of vehicles on system safety are higher and higher, the intelligent safety development of accident prevention can be gradually carried out from passive safety of reducing accident damage, the braking system is used as a core device for guaranteeing the safety of the vehicles, and the intellectualization of the braking system becomes the inevitable trend of the development of the braking technology. The electric control pneumatic brake is taken as a key technical means for solving the brake intellectualization, and in order to accurately execute a brake control strategy of a decision-making layer, a brake control valve suitable for an electric control pneumatic brake system of a commercial vehicle is urgently needed so as to solve the problem of accurate brake control of the commercial vehicle in an intelligent brake environment.
The Chinese invention patent application (application number: 201710343601.6, published: 2017, 07, 18) discloses an automatic pressure regulating valve in the field of pneumatic control, wherein a main valve body of the automatic pressure regulating valve is provided with a safety valve, an air inlet and an air outlet, and a one-way valve is arranged between the air inlet and the air outlet. The device is through the coordinated operation of control valve, relief valve, pressure regulating valve subassembly and check valve that opens circuit for the pressure of low reaches execution unit is automatic to be filled the gassing between the high low pressure of settlement, has guaranteed that execution unit spare is working in setting for the pressure range all the time, and its structure is comparatively complicated, and it adopts mechanical structure to adjust outlet pressure, can't adapt to the quick and accurate pressure regulating demand of automatically controlled pneumatic brake system.
The utility model discloses an electric proportional valve (application number: 201720818341.9, published: 2018, 03, 02), this electric proportional valve mainly comprises lower valve body and guide valve body two parts, and guide valve body contains admission valve and discharge valve inside, and guide valve body's control chamber passes through diaphragm spring and links to each other with lower valve body, through the pressure in adjusting guide chamber, can adjust main valve outlet pressure to through set up pressure monitoring hole in the export and realize output pressure's closed-loop control. However, the valve is mainly applied to the field of industrial control, the flow is small, and the valve body structure is complex, so that the requirement on air quality is high, and the environmental applicability is low.
The pressure regulating element applied to the air brake system in China is mostly mechanical, the number of electric control pressure regulating valves designed according to the requirements of the electric control air brake system is small, and industrial pressure regulating valves are directly applied to the automobile industry by some enterprises, so that the problems of complex structure, poor applicability, high cost, low reliability and the like exist.
Disclosure of Invention
In order to meet the development requirement of an electric control pneumatic brake system and solve the problems that the existing pneumatic control valve is complex in structure, insufficient in applicability, high in cost, low in reliability and the like, the application provides a novel electric-pneumatic coupling type brake control valve for the electric control pneumatic brake system of the commercial vehicle, and the adopted technical scheme is as follows: an electric coupling type brake control valve for commercial vehicles comprises a high-speed air inlet valve, a high-speed exhaust valve, a one-way valve and a relay valve; the bottom of the brake control valve is provided with a relay valve, the upper part of the brake control valve is provided with a one-way valve, a high-speed air inlet valve and a high-speed exhaust valve, the front part of the relay valve is provided with the one-way valve, and the high-speed air inlet valve and the high-speed exhaust valve are respectively positioned at two sides of the one-way valve; the high-speed air inlet valve and the high-speed exhaust valve adopt a slide valve structure, and the high-speed air inlet valve comprises a valve seat, a valve core and a return spring; the high-speed exhaust valve comprises a valve seat, a valve core and a return spring; the one-way valve comprises a valve seat, a valve core and a return spring; the relay valve comprises an upper valve body and a lower valve body; the valve core of the high-speed air inlet valve is positioned in the valve seat, the middle part of the valve core is provided with a limiting sealing ring, two ends of the valve core are sleeved with air inlet electromagnetic valve sealing rings, the bottom of the valve core is provided with a return spring, and the valve seat is fixedly connected to one side of the upper valve body through a screw; the high-speed exhaust valve seat is fixedly connected with the other side of the upper valve body through a screw, and a valve seat sealing ring is arranged between the high-speed exhaust valve seat and the upper valve body for sealing; the top of the one-way valve seat is provided with a pneumatic control port which is connected with the air storage tank through a pedal valve, and the one-way valve seat is connected with the upper valve body through a screw; the lower part of the upper valve body of the relay valve is provided with a control cavity, the side of the upper valve body is provided with a pressure acquisition port which penetrates through the upper surface and the lower surface of the upper valve body and is not communicated with the control cavity, the port above the acquisition port is a threaded port for connecting a pressure sensor, the lower end of the acquisition port is a through hole for connecting an output port of the lower valve body, the side surface of the upper valve body is provided with a pressure relief hole, one side of the pressure relief hole is communicated with the control. The high-speed air inlet valve upstream port is threaded and is connected with the air storage tank, the downstream port of the high-speed air inlet valve is unthreaded and is provided with a countersink for placing a valve seat sealing ring, and the downstream port of the high-speed air inlet valve is attached to the upper valve body through the valve seat sealing ring. The high-speed exhaust valve upstream port does not have the screw thread mouth, is equipped with the ream mouth for place the disk seat sealing washer, and the laminating of disk seat sealing washer and last valve body is passed through to the upstream port, and the low reaches port is the screw thread mouth for connect the muffler. The valve seat of the high-speed air inlet valve and the valve seat of the air outlet valve are in clearance fit with the valve core, and the valve core moves linearly in the valve seat. One end of the valve seat of the one-way valve is a threaded opening, the other end of the valve seat of the one-way valve is a through hole, and the diameter of the through hole is smaller than that of the top of the valve core of the one-way valve. The left side and the right side of the lower valve body of the relay valve are respectively provided with an input port and an output port, a pressure sensing channel is arranged above the output port, the channel penetrates through the output port and the upper surface of the lower valve body, and the end surface of the channel is provided with a spot facing for placing a pressure sensor sealing ring. After the upper valve body and the lower valve body of the relay valve are buckled, the pressure sensing channel is communicated with the upper valve body pressure collecting port and is used for being connected with a pressure sensor.
Compared with the prior art, the beneficial effects of the utility model are that: the valve is designed and assembled in a modular mode by integrating the one-way valve, the high-speed air inlet valve, the high-speed exhaust valve and the relay valve, so that the manufacturing and processing difficulty of the valve is greatly reduced; the traditional pneumatic control technology and the advanced electric control technology are fused, and the reliability of the system is improved through electric-pneumatic coupling control; by arranging the pressure relief hole, the brake can be manually released under the condition of system failure, so that the maintenance is convenient; the structure of the pressure acquisition port of the brake control valve is changed, the structural integration level of the brake control valve is improved, and the pressure acquisition precision is improved.
Drawings
FIG. 1 is a schematic diagram of an outline structure of an electric coupling type brake control valve for a commercial vehicle
FIG. 2 is a longitudinal sectional view of an electric coupling type brake control valve for commercial vehicle
FIG. 3 is a cross-sectional view of an electric coupling type brake control valve for commercial vehicle
In the figure, 1 a lower valve body, 2 a base sealing ring, 3 an elastic retainer ring, 4 a base, 5 a main valve core sealing ring, 6 a silencing pad, 7 a main valve core, 8 a main valve core return spring, 9 a gasket, 10 a main valve core middle sealing gasket, 11 an upper valve body sealing ring, 12 a main valve core top sealing gasket, 13 a piston sealing ring, 14 a one-way valve seat, 15 a one-way valve sealing ring, 16 a one-way valve top sealing ring, 17 a one-way valve core, 18 a one-way valve return spring, 19 an upper valve body, 20 a piston, 21 a pressure sensor sealing ring, 22 an air inlet solenoid valve seat sealing ring, 23 an air inlet solenoid valve seat, 24 an air inlet solenoid valve return spring, 25 an air inlet solenoid valve sealing ring, 26 an air inlet solenoid valve core, 27 an air inlet solenoid valve limit sealing ring, 28 an air inlet solenoid valve needle sleeve, 29 an air inlet solenoid valve abnormal-shaped sealing ring, 30 an air, 33 air inlet electromagnetic valve movable iron core, 34 exhaust electromagnetic valve movable iron core, 35 exhaust electromagnetic valve coil, 36 exhaust electromagnetic valve thimble, 37 exhaust electromagnetic valve thimble sleeve, 38 exhaust electromagnetic valve limit spring, 39 exhaust electromagnetic valve special-shaped seal ring, 40 exhaust electromagnetic valve core, 41 exhaust electromagnetic valve limit seal ring, 42 exhaust electromagnetic valve seal ring, 43 exhaust electromagnetic valve return spring, 44 exhaust electromagnetic valve seat, 45 exhaust electromagnetic valve seat seal ring, a input port, B high-speed air inlet, C pneumatic control port, D high-speed exhaust port, e output port, f pressure collection port, g exhaust port, h pressure relief hole, a input air chamber, B exhaust air chamber, C control cavity and D output air chamber.
Detailed Description
The present disclosure is described in detail below with reference to the attached drawings.
The high-speed air inlet valve and the high-speed exhaust valve respectively comprise valve seats, coils, movable iron cores, valve cores, return springs, ejector pins and ejector pin sleeves, and the high-speed air inlet valve and the high-speed exhaust valve are respectively positioned on two sides of the control cavity C. The high-speed air inlet valve b is a high-speed air inlet and is connected with a high-pressure air storage tank, and the high-speed exhaust valve d is a high-speed exhaust port and is communicated with the atmosphere. High-speed inlet valve, discharge valve disk seat 23, 44 all are fixed in the 19 both sides of last valve body through screwed connection, and high-speed inlet valve upstream port is the screw thread mouth, and the low reaches port is unthreaded and is equipped with the countersink for place air inlet solenoid valve seat sealing washer 22, and high-speed discharge valve upstream port is unthreaded and is equipped with the countersink, is used for placing discharge solenoid valve seat sealing washer 45, and the upper reaches port passes through valve seat sealing washer and last valve body 19 laminating, and the low reaches port is the screw thread mouth for connect the muffler. The middle parts of the high-speed air inlet valve seat 23 and the high-speed air outlet valve seat 44 are respectively provided with a blind hole for installing the high-speed air inlet valve core 26 and the high-speed air outlet valve core 40, the middle part of the valve core is provided with a limit sealing ring 27 and a limit sealing ring 41 which are bonded with the valve core, the diameter of the middle part of the valve core is larger than that of the blind hole, the two ends of the valve core are sleeved with electromagnetic valve sealing rings 25 and 42, the two ends of the valve core are in clearance fit with the valve seat, the bottom parts of the high-speed air inlet valve core and the high-speed air outlet valve core are respectively provided with a return spring 24 and a return spring 43, the high-speed air inlet valve coil 32 and the high-speed air outlet valve coil 35 are connected with the valve seat through screws, the special- shaped sealing rings 29 and 39 are arranged between the high-speed air inlet valve coil and the movable iron core, the thimble sleeve is immovable, one end of the thimble sleeve close to the movable iron core is a plane, a conical groove is processed at one end close to the valve core, thimbles 31 and 36 are arranged in the thimble sleeves 28 and 37 of the high-speed air inlet and exhaust valves, and one end of the thimble is conical and is used for being matched with the conical groove of the thimble sleeve and can slide in the thimble sleeve. Under the non-working state, the valve core 26 of the high-speed air inlet valve is under the spring force action of the return spring 24 and is jointed with the end surface of the thimble sleeve 28, the conical surface of the thimble 31 is jointed with the conical surface of the thimble sleeve 28, the middle limiting sealing ring 27 of the valve core 26 of the high-speed air inlet valve is jointed with the downstream port, and the upstream and the downstream of the high-speed air inlet valve are in the. When the high-speed air inlet valve coil 32 is electrified, the movable valve core 33 is attracted to one side of the thimble sleeve 28 by electromagnetic force, the thimble 31 moves towards one side of the valve core 26 under the pushing of the movable iron core 33, the conical surface of the thimble 31 is separated from the conical surface of the thimble sleeve 28, the push valve core 26 overcomes the spring force of the return spring 24, the middle limiting sealing ring 27 of the valve core 26 of the high-speed air inlet valve is attached to an upstream port, and the upstream and the downstream of the high. When the high-speed air inlet valve coil 32 loses power, the valve core 26 moves towards one side of the thimble sleeve 28 under the action of the spring force of the return spring 24 to push the thimble 31 to move towards one side of the movable iron core 33, the conical surface of the thimble 31 is attached to the conical surface of the thimble sleeve 28, the movable valve core 33 is not influenced by electromagnetic force, and the upstream and the downstream of the high-speed air inlet valve are closed. The working principle of the high-speed exhaust valve is the same as that of the high-speed intake valve.
The one-way valve mainly comprises a one-way valve seat 14, a valve core 17 and a return spring 18. The top of a one-way valve seat 14 is provided with a pneumatic control port c which is connected with an air storage tank through a pedal valve, the one-way valve seat 14 is connected with an upper valve body 19 through a screw, a one-way valve sealing ring 15 is arranged between the one-way valve seat and the upper valve body for sealing, a one-way valve core 17 is positioned inside a stepped hole of the upper valve body 19 and is in clearance fit with the inner wall of the stepped hole, the top of the one-way valve core 17 is bonded with a one-way valve top sealing ring 16, a through hole is formed in the one-way valve core 17, and a one-way valve return spring 18 is arranged below. In a non-working state, the check valve return spring 18 jacks up the check valve core 17, the check valve top sealing ring 16 is attached to the check valve seat 14, and gas can only flow into the control cavity C from the pneumatic control port C through the through hole in a one-way mode.
The relay valve mainly comprises an upper valve body 19, a lower valve body 1, a piston 20, a main valve core 7, a return spring 8, a base 4 and the like. The upper part of the boss of the upper valve body 19 is a high-speed air inlet and outlet valve and a one-way valve mounting base body, through holes are arranged on two sides of the boss and are connected with ports of the high-speed air inlet and outlet valves, a stepped hole is formed in one end and is used for mounting a one-way valve core 17 and a one-way valve return spring 18, a spot-facing opening is formed in the end face of the stepped hole and is used for placing a one-way valve sealing ring 15, and the through holes on two sides and the stepped hole on one side; the lower part of the relay valve upper valve body 19 is a control cavity C, a pressure acquisition port f is arranged beside the control cavity C, penetrates through the upper surface and the lower surface of the upper valve body and is not communicated with the control cavity C, a threaded port is arranged at the upper port of the pressure acquisition port f and is used for connecting a pressure sensor, and a through hole is arranged at the lower end of the pressure acquisition port f and is used for connecting an output port e of the lower valve body; the side of the upper valve body 19 is provided with a pressure relief hole h which communicates the control cavity with the atmosphere. The upper valve body 19 is internally provided with a piston 20 which can move up and down in the control cavity C, and the piston 20 is sleeved with a piston sealing ring 13 for sealing. The main valve core 7 is located in the center of the lower valve body 1, sealing gaskets 12 and 10 are respectively arranged at the contact positions of the top and the waist of the main valve core 7 and the lower valve body in a surrounding mode, a main valve core return spring 8 is arranged below the main valve core 7, and the main valve core 7 is jacked up, so that the sealing gasket 10 in the middle of the main valve core is attached to the lower valve body 1. The exhaust port g of the lower valve body is provided with a base 4 for supporting a main valve core return spring 8, the base 4 is buckled with a silencing pad 6 for reducing exhaust noise, and an elastic retainer ring 3 is arranged below the base 4 for fixing the base 4 on the lower valve body 1. The left side and the right side of the lower valve body 1 are respectively provided with an input port a and an output port e, the input port a is connected with an air storage tank, the output port e is connected with a brake air chamber, a pressure sensing channel is arranged above the output port e, the channel penetrates through the output port e and the upper surface of the lower valve body 1, the end surface of the channel is provided with a spot-facing used for placing a pressure sensor sealing ring 21, and after the upper valve body 19 and the lower valve body 1 are buckled, the pressure sensing channel is communicated with an upper valve body pressure acquisition port f to feed back signals to a controller. The lower part of the lower valve body 1 is provided with an exhaust port g which is communicated with the atmosphere.
When the electric-pneumatic coupling type brake control valve works, the valve core is controlled to be opened and closed by controlling the on-off of the current in the high-speed air inlet valve coil and the high-speed air outlet valve coil, the pressure of the control cavity is adjusted, and further the outlet pressure P2 is controlled. Meanwhile, a pressure sensor is adopted to detect the output pressure, and the output pressure is compared with a target pressure P1 in the controller to form a feedback closed loop.
The present invention will be described in further detail with reference to specific examples.
When P2< P1, the brake control valve needs to be pressurized to increase the output pressure, at the moment, the controller controls the high-speed air inlet valve to work, the high-speed exhaust valve stops working, the air inlet electromagnetic valve coil 32 is electrified, the high-speed air inlet valve movable iron core 33 is attracted to one side of the high-speed air inlet valve thimble sleeve 28 by electromagnetic force, the high-speed air inlet valve thimble 31 moves to one side of the high-speed air inlet valve core 26 under the pushing of the movable iron core 33, the conical surface of the thimble 31 is separated from the conical surface of the thimble sleeve 28, the high-speed air inlet valve core 26 is pushed to. Compressed gas in the gas storage tank flows into a control cavity C, the pressure of the control cavity C rises to cause a piston 20 to move downwards, the piston 20 firstly contacts with a sealing gasket 12 at the top of a main valve element 7 to separate an output port e from an exhaust port g, the piston 20 continuously pushes the main valve element 7 to move downwards, a sealing gasket 10 in the middle of the main valve element is separated from a lower valve body 1 to enable an input port a to be communicated with the output port e, the compressed gas in the gas storage tank flows into a brake chamber, and the pressure of the brake chamber rises.
When P is present2>P1When the brake control valve needs to reduce pressure to reduce output pressure, at the moment, the controller controls the high-speed exhaust valve to work, the high-speed intake valve stops working, the high-speed exhaust valve coil 35 is electrified, the high-speed intake valve movable iron core 34 is sucked to one side of a high-speed exhaust valve thimble sleeve 37 by electromagnetic force, a high-speed exhaust valve thimble 36 moves towards one side of a high-speed exhaust valve core 40 under the push of the movable iron core 34, the conical surface of the thimble 36 is separated from the conical surface of the thimble sleeve 37 to push the high-speed exhaust valve core 40 to overcome the spring force of a return spring 43, a control cavity C is communicated with a high-speed exhaust port d, compressed gas in the control cavity C is exhausted through the high-speed exhaust port d, the pressure of the control cavity C is reduced to cause a piston 20 to move upwards, a main valve core 7 moves upwards together under the, the piston 20 continues to move upwards to be separated from the top sealing gasket 12 of the main valve core, so that the output port e is communicated with the exhaust port g, and the output port e is compressedThe gas is exhausted to the atmosphere through the exhaust port g, and the brake chamber pressure is reduced.
When P is present2=P1When the brake control valve needs to keep the pressure of the control cavity stable to enable the output pressure to be unchanged, the controller controls the high-speed air inlet valve and the high-speed exhaust valve to both stop working, the high-speed air inlet valve coil 32 is powered off, the high-speed exhaust valve coil 35 is powered off, the high-speed air inlet valve spool 26 and the high-speed exhaust valve spool 40 are respectively attached to the thimble sleeves 28 and 37 under the action of the return springs 24 and 43, the middle limiting sealing rings 27 and 41 of the high-speed air inlet valve spool 26 and the high-speed exhaust valve spool 40 are attached to downstream ports, and the high. At the moment, the middle sealing gasket 10 of the main valve core is attached to the lower valve body 1, the piston 20 is attached to the top sealing gasket 12 of the main valve core, the input port a is isolated from the output port e, the output port e is isolated from the exhaust port g, and the pressure of the brake chamber is kept stable.
When the electric control system breaks down and needs manual backup braking, a driver steps on a pedal brake valve connected to the front side of the one-way valve, the pressure of the upstream of the one-way valve is higher than the pressure of the control cavity C, the air pressure overcomes the spring force of a return spring 18 of the one-way valve to push a valve core 17 of the one-way valve to slide backwards, a sealing ring 16 of the top of the one-way valve is separated from a valve seat 14 of the one-way valve, and air flows into the control cavity C from a pneumatic control port C in a one-way mode through a. The air pressure of the control cavity C is increased to push the piston 20 to move downwards, the piston 20 is firstly contacted with the sealing gasket 12 at the top of the main valve element 7 to enable the output port e to be separated from the exhaust port g, the piston 20 continuously pushes the main valve element 7 to move downwards, the sealing gasket 10 in the middle of the main valve element is separated from the lower valve body 1 to enable the input port a to be communicated with the output port e, compressed air of the air storage tank flows into the brake chamber, and the brake chamber is pressurized and braked.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and transformations for some technical features without creative labor according to the disclosed technical contents, and these substitutions and transformations are all within the protection scope of the present invention.
Claims (7)
1. An electric coupling type brake control valve for commercial vehicles comprises a high-speed air inlet valve, a high-speed exhaust valve, a one-way valve and a relay valve; the bottom of the brake control valve is provided with a relay valve, the upper part of the brake control valve is provided with a one-way valve, a high-speed air inlet valve and a high-speed exhaust valve, the front part of the relay valve is provided with the one-way valve, and the high-speed air inlet valve and the high-speed exhaust valve are respectively positioned at two sides of the one-way valve; the method is characterized in that: the high-speed air inlet valve and the high-speed exhaust valve adopt a slide valve structure, and the high-speed air inlet valve comprises an air inlet electromagnetic valve seat (23), an air inlet electromagnetic valve core (26) and an air inlet electromagnetic valve return spring (24); the high-speed exhaust valve comprises an exhaust electromagnetic valve seat (44), an exhaust electromagnetic valve core (40) and an exhaust electromagnetic valve return spring (43); the one-way valve comprises a one-way valve seat (14), a one-way valve core (17) and a one-way valve return spring (18); the relay valve comprises an upper valve body (19) and a lower valve body (1); the air inlet electromagnetic valve core (26) is positioned in the air inlet electromagnetic valve seat (23), a limiting sealing ring (27) is arranged in the middle of the air inlet electromagnetic valve core (26), air inlet electromagnetic valve sealing rings (25) are sleeved at two ends of the air inlet electromagnetic valve core (26), an air inlet electromagnetic valve return spring (24) is arranged at the bottom of the air inlet electromagnetic valve core (26), and the air inlet electromagnetic valve seat (23) is fixedly connected to one side of the upper valve body (19) through a screw; the exhaust electromagnetic valve seat (44) is fixedly connected with the other side of the upper valve body (19) through a screw, and an exhaust electromagnetic valve seat sealing ring (45) is arranged between the exhaust electromagnetic valve seat and the upper valve body for sealing; the top of the one-way valve seat (14) is provided with a pneumatic control port (c) which is connected with the air storage tank through a pedal valve, and the one-way valve seat (14) is connected with the upper valve body (19) through a screw; the lower portion of the upper valve body (19) of the relay valve is a control cavity (C), a pressure acquisition port (f) is arranged beside the upper valve body and penetrates through the upper surface and the lower surface of the upper valve body (19) and is not communicated with the control cavity (C), a threaded port is arranged at an upper port of the pressure acquisition port (f) and is used for being connected with a pressure sensor, a through hole is arranged at the lower end of the pressure acquisition port and is used for being connected with a lower valve body output port (e), a pressure relief hole (h) is formed in the side face of the upper valve body (19), one side of the pressure relief hole.
2. The electrically coupled brake control valve for commercial vehicles according to claim 1, wherein: the high-speed air inlet valve upstream port is threaded and is connected with the air storage tank, the downstream port of the high-speed air inlet valve is unthreaded and is provided with a countersink for placing an air inlet electromagnetic valve seat sealing ring (22), and the downstream port is attached to the upper valve body (19) through the air inlet electromagnetic valve seat sealing ring (22).
3. The electrically coupled brake control valve for commercial vehicles according to claim 2, wherein: the upstream port of the high-speed exhaust valve is free of a threaded port and is provided with a countersink for placing an exhaust solenoid valve seat sealing ring (45), the upstream port is attached to an upper valve body (19) through the exhaust solenoid valve seat sealing ring (45), and the downstream port is a threaded port for connecting a silencer.
4. The electrically coupled brake control valve for commercial vehicles according to claim 3, wherein: the valve seat (23) of the air inlet electromagnetic valve and the valve core (26) of the air inlet electromagnetic valve, and the valve seat (44) of the exhaust electromagnetic valve and the valve core (40) of the exhaust electromagnetic valve are in clearance fit, and the valve cores move linearly in the valve seats.
5. The electrically coupled brake control valve for commercial vehicles according to claim 1, wherein: one end of the one-way valve seat (14) is a threaded opening, the other end of the one-way valve seat is a through hole, and the diameter of the through hole is smaller than that of the top of the one-way valve core (17).
6. The electrically coupled brake control valve for commercial vehicles according to claim 1, wherein: the left side and the right side of the relay valve lower valve body (1) are respectively provided with an input port (a) and an output port (e), a pressure sensing channel is arranged above the output port (e), the pressure sensing channel penetrates through the output port (e) and the upper surface of the lower valve body (1), and a spot-facing is arranged on the end surface of the pressure sensing channel and used for placing a pressure sensor sealing ring (21).
7. The electrically coupled brake control valve for commercial vehicles according to claim 6, wherein: after the upper valve body (19) and the lower valve body (1) of the relay valve are buckled, the pressure sensing channel is communicated with the pressure acquisition port (f) of the upper valve body (19) and is used for being connected with a pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921950182.3U CN210978304U (en) | 2019-11-12 | 2019-11-12 | Electric coupling type brake control valve for commercial vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921950182.3U CN210978304U (en) | 2019-11-12 | 2019-11-12 | Electric coupling type brake control valve for commercial vehicle |
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| CN210978304U true CN210978304U (en) | 2020-07-10 |
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| CN201921950182.3U Active CN210978304U (en) | 2019-11-12 | 2019-11-12 | Electric coupling type brake control valve for commercial vehicle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112677947A (en) * | 2021-03-11 | 2021-04-20 | 天津所托瑞安汽车科技有限公司 | Proportional relay valve and pneumatic line control brake system |
| CN113460015A (en) * | 2021-07-19 | 2021-10-01 | 武汉理工大学 | Automatic pressure regulating valve of commercial vehicle electric control air brake system and control method |
| CN113844421A (en) * | 2021-07-19 | 2021-12-28 | 武汉理工大学 | Pneumatic automatic pressure regulating valve suitable for automatic driving of commercial vehicle and control method thereof |
| CN115182993A (en) * | 2022-06-27 | 2022-10-14 | 陕西法士特齿轮有限责任公司 | Double-pneumatic control integrated valve and gas circuit protection system adopting same |
| WO2023000363A1 (en) * | 2021-07-19 | 2023-01-26 | 武汉理工大学 | Automatic pressure-regulating valve suitable for multi-level driving automation of commercial vehicle, and control method therefor |
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2019
- 2019-11-12 CN CN201921950182.3U patent/CN210978304U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112677947A (en) * | 2021-03-11 | 2021-04-20 | 天津所托瑞安汽车科技有限公司 | Proportional relay valve and pneumatic line control brake system |
| CN112677947B (en) * | 2021-03-11 | 2021-05-18 | 天津所托瑞安汽车科技有限公司 | Proportional relay valve and pneumatic line control brake system |
| CN113460015A (en) * | 2021-07-19 | 2021-10-01 | 武汉理工大学 | Automatic pressure regulating valve of commercial vehicle electric control air brake system and control method |
| CN113844421A (en) * | 2021-07-19 | 2021-12-28 | 武汉理工大学 | Pneumatic automatic pressure regulating valve suitable for automatic driving of commercial vehicle and control method thereof |
| CN113460015B (en) * | 2021-07-19 | 2022-12-23 | 武汉理工大学 | Automatic pressure regulating valve of commercial vehicle electric control air brake system and control method |
| WO2023000363A1 (en) * | 2021-07-19 | 2023-01-26 | 武汉理工大学 | Automatic pressure-regulating valve suitable for multi-level driving automation of commercial vehicle, and control method therefor |
| WO2023000364A1 (en) * | 2021-07-19 | 2023-01-26 | 武汉理工大学 | Pneumatic automatic pressure-regulating valve suitable for autonomous driving of commercial vehicle, and control method therefor |
| WO2023000362A1 (en) * | 2021-07-19 | 2023-01-26 | 武汉理工大学 | Automatic pressure regulation valve of electro-pneumatic braking system of commercial vehicle and control method |
| CN115182993A (en) * | 2022-06-27 | 2022-10-14 | 陕西法士特齿轮有限责任公司 | Double-pneumatic control integrated valve and gas circuit protection system adopting same |
| CN115182993B (en) * | 2022-06-27 | 2023-11-07 | 陕西法士特齿轮有限责任公司 | Double-pneumatic-control integrated valve and protection gas circuit system adopting same |
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