CN210554749U - Controllable advance braking device for trailer - Google Patents
Controllable advance braking device for trailer Download PDFInfo
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- CN210554749U CN210554749U CN201921668465.9U CN201921668465U CN210554749U CN 210554749 U CN210554749 U CN 210554749U CN 201921668465 U CN201921668465 U CN 201921668465U CN 210554749 U CN210554749 U CN 210554749U
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Abstract
A controllable advanced braking device of a trailer comprises a shell, an electromagnetic valve, an air inlet pipe, an air outlet pipe, a control chamber, a valve rod, a piston ring, a valve, a check ring, a braking chamber, a protruding ring and a communicating chamber; the upper end of the air inlet pipe is communicated with the electromagnetic valve, the lower end of the air outlet pipe is communicated with the electromagnetic valve, and the upper end of the air outlet pipe is communicated with the control chamber; the upper section of the valve rod is arranged in the control chamber, the lower section of the valve rod is arranged in the braking chamber, the upper section of the valve rod is provided with a protruding ring, and a sealing ring is arranged between the protruding ring and the control chamber; the lower end of the valve rod is connected with the valve; a piston ring, a valve and a retainer ring are arranged in the communicating chamber, the retainer ring is arranged at the lower part of the piston ring, and the valve is arranged between the piston ring and the retainer ring in a sliding way; the long-distance air pipe between the main vehicle and the trailer is omitted, so that the braking high-pressure air can be quickly conducted to the braking branch pumps of the trailers, the time is saved, the time delay is eliminated, the simultaneous braking of the head vehicle and the trailers is ensured, and the safety is ensured.
Description
The technical field is as follows:
the utility model belongs to the technical field of the vehicle braking technique and specifically relates to a controllable arresting gear in advance of trailer that says so.
Background art:
the main car and trailer of the existing car with trailer both adopt the brake device using compressed air as power, and when a driver steps on the brake pedal, the compressed air respectively enters the brake cylinders of each wheel of the main car and trailer, so as to implement braking. However, as the air passage pipeline between the main vehicle and the trailer is about 6-10 m long, the compressed air passes through the pipeline with the length of about 6-10 m, so that the time delay is generated, and the trailer and the main vehicle cannot be braked simultaneously to achieve the synchronous effect; on the other hand, when the trailer is heavily loaded, the mass of the trailer is larger than that of the main vehicle, and when the trailer is emergently braked, because the inertia of the trailer is larger than that of the main vehicle, the trailer at the rear part often collides with the main vehicle at the front part, the vehicle head is laterally deflected, and serious traffic accidents are caused.
The utility model has the following contents:
for solving the problem, overcome the not enough of prior art, the utility model provides a controllable braking device in advance of trailer that does not have braking time delay, simple structure, dependable performance.
In order to achieve the purpose, the utility model provides a controllable advanced braking device of a trailer, which comprises a shell, a solenoid valve, an air inlet pipe, an air outlet pipe, a control chamber, a valve rod, a piston ring, a valve, a retainer ring, a braking chamber, a protruding ring and a communicating chamber;
the electromagnetic valve, the air inlet pipe, the air outlet pipe, the control chamber, the valve rod, the piston ring, the valve and the braking chamber are all arranged inside the shell; the upper end of the air inlet pipe is communicated with the electromagnetic valve, the lower end of the air outlet pipe is communicated with the electromagnetic valve, and the upper end of the air outlet pipe is communicated with the control chamber;
the upper section of the valve rod is arranged in the control chamber, the lower section of the valve rod is arranged in the braking chamber, the upper section of the valve rod is provided with a protruding ring, and a sealing ring is arranged between the protruding ring and the control chamber; the lower end of the valve rod is connected with the valve;
the inside piston ring, valve and the retaining ring that are provided with of intercommunication cavity, the retaining ring setting is in the piston ring lower part, and the valve sets up between piston ring and retaining ring with slidable mode.
Further, the solenoid valve includes (air) intake valve and sealing plug, and the (air) intake valve lower extreme communicates with the intake pipe, and the (air) intake valve upper end communicates with the outlet duct, and the sealing plug sets up inside the (air) intake valve with slidable mode.
Furthermore, a diaphragm and a return spring are arranged in the brake chamber, the inner ring of the diaphragm is connected with the valve rod, and the outer ring of the diaphragm is connected with the shell; the return spring is sleeved outside the valve rod, the upper end of the return spring is connected with the valve rod, and the lower end of the return spring is connected with the shell.
Furthermore, the upper end of the electromagnetic valve is connected with an exhaust pipe which is communicated to the outside of the shell.
Furthermore, a first connecting port, a second connecting port, a third connecting port and a normally-open connecting port are arranged at the lower part of the shell, the second connecting port is communicated with the third connecting port, and a one-way valve is arranged between the first connecting port and the normally-open connecting port; the first connecting port and the second connecting port are communicated with the communicating cavity.
Furthermore, a sealing ring is arranged between the piston ring and the shell, and a sealing ring is arranged between the check ring and the piston ring.
Furthermore, the first connecting port, the second connecting port and the third connecting port are all connected with auxiliary air cylinders, and the normally-open air connecting port is connected with a main air cylinder.
The utility model has the advantages that:
the utility model provides a controllable arresting gear in advance of trailer receives brake signal through setting up the solenoid valve, then calls high-pressure gas from assisting the gas receiver, saves from main car to long distance trachea between the trailer for brake high-pressure gas can conduct to each trailer braking wheel cylinder rapidly, has saved the time, has eliminated the time delay, has guaranteed the braking of first car and trailer simultaneously, has guaranteed safety.
The air supply of assisting the gas receiver comes from main gas receiver, and the main gas receiver of head car is connected to the connector of always opening gas, and the connector of always opening gas links to each other with first connector through the check valve, can make to have gas in assisting the gas receiver always through the check valve, and atmospheric pressure is the same with main gas receiver, guarantees can not appear the low trouble of atmospheric pressure in the supplementary gas receiver when needs brake.
The valve rod can slide up and down, and the return spring that the valve rod outside set up can make the valve rod return, and it is closed to brake between cavity and the intercommunication cavity when not braking.
A sealing ring is arranged between the protruding ring and the control chamber, a sealing ring is arranged between the piston ring and the shell, and a sealing ring is arranged between the check ring and the piston ring, so that the internal air tightness is ensured.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged schematic view of the structure of the solenoid valve of the present invention;
in the drawings: 1. the device comprises a shell, 2, an electromagnetic valve, 3, an air inlet pipe, 4, an air outlet pipe, 5, an air outlet pipe, 6, a control chamber, 7, a valve rod, 8, a piston ring, 9, a valve, 10, a retainer ring, 11, a diaphragm, 12, a return spring, 13, a braking chamber, 14, a first connecting port, 15, a second connecting port, 16, a third connecting port, 17, a normally-open connecting port, 18, a one-way valve, 19, a protruding ring, 20, a communicating chamber, 2-1, an air inlet valve, 2-2 and a sealing plug.
The specific implementation mode is as follows:
in order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the attached drawings 1 and 2 of the present invention to perform more detailed description of the present invention.
The utility model provides a controllable braking device in advance of trailer, including shell 1, solenoid valve 2, intake pipe 3, outlet duct 4, control chamber 6, valve rod 7, piston ring 8, valve 9, retaining ring 10, braking chamber 13, outstanding ring 19 and intercommunication chamber 20; the electromagnetic valve 2, the air inlet pipe 3, the air outlet pipe 4, the control chamber 6, the valve rod 7, the piston ring 8, the valve 9 and the braking chamber 13 are all arranged inside the shell 1; the upper end of the air inlet pipe 3 is communicated with the electromagnetic valve 2, the lower end of the air outlet pipe 4 is communicated with the electromagnetic valve 2, and the upper end of the air outlet pipe 4 is communicated with the control chamber 6; the upper section of the valve rod 7 is arranged in the control chamber 6, the lower section of the valve rod 7 is arranged in the braking chamber 13, the upper section of the valve rod 7 is provided with a protruding ring 19, and a sealing ring is arranged between the protruding ring 19 and the control chamber 6; the lower end of the valve rod 7 is connected with a valve 9; a piston ring 8, a valve 9 and a retainer ring 10 are arranged in the communication chamber 20, the retainer ring 10 is arranged at the lower part of the piston ring 8, and the valve 9 is arranged between the piston ring 8 and the retainer ring 10 in a sliding manner; the electromagnetic valve 2 comprises an inlet valve 2-1 and a sealing plug 2-2, the lower end of the inlet valve 2-1 is communicated with an inlet pipe 3, the upper end of the inlet valve 2-1 is communicated with an outlet pipe 4, and the sealing plug 2-2 is arranged in the inlet valve 2-1 in a sliding manner; a diaphragm 11 and a return spring 12 are arranged in the brake chamber 13, the inner ring of the diaphragm 11 is connected with the valve rod 7, and the outer ring of the diaphragm 11 is connected with the shell 1; the return spring 12 is sleeved outside the valve rod 7, the upper end of the return spring 12 is connected with the valve rod 7, and the lower end of the return spring 12 is connected with the shell 1; the upper end of the electromagnetic valve 2 is connected with an exhaust pipe 5, and the exhaust pipe 5 is communicated to the outside of the shell 1; the lower part of the shell 1 is provided with a first connecting port 14, a second connecting port 15, a third connecting port 16 and a normally-open connecting port 17, the second connecting port 15 is communicated with the third connecting port 16, and a one-way valve 18 is arranged between the first connecting port 14 and the normally-open connecting port 17; the first connection port 14 and the second connection port 15 are both communicated with the communication chamber 20; a sealing ring is arranged between the piston ring 8 and the shell 1, and a sealing ring is arranged between the check ring 10 and the piston ring 8; the first connector 14, the second connector 15 and the third connector 16 are all connected with auxiliary air cylinders, and the normally-open air connector 17 is connected with a main air cylinder.
The utility model discloses a one of them embodiment as follows:
the utility model provides a pair of controllable arresting gear in advance of trailer increases solenoid valve 2 to through opening and closing of 2 control gas passage of solenoid valve, very big shortening braking time difference.
The electromagnetic valve 2, the air inlet pipe 3, the air outlet pipe 4, the control chamber 6, the valve rod 7, the piston ring 8, the valve 9 and the braking chamber 13 are all arranged inside the shell 1;
three chambers are provided, namely a control chamber 6, a brake chamber 13 and a communication chamber 20, the control chamber 6 is used for driving the valve rod 7 to move downwards under the condition of air pressure increase, so that the communication chamber 20 is communicated with the brake chamber 13; the brake chamber 13 is used for receiving high-pressure gas from the communication chamber 20 and transmitting the high-pressure gas to each brake cylinder through an external joint; the communication chamber 20 collects high-pressure gas from the first connection port 14, the second connection port 15, and the third connection port 16, and delivers the gas to the brake chamber 13 when the communication chamber 20 and the brake chamber 13 are communicated;
the electromagnetic valve 2 is used for receiving a braking electric signal and then controlling a sealing plug 2-2 in the inlet valve 2-1 to be opened so as to enable the inlet pipe 3 to be communicated with the outlet pipe 4, and at the moment, the outlet pipe 4 is disconnected with the exhaust pipe 5; when the electromagnetic valve 2 is closed, the air inlet pipe 3 and the air outlet pipe 4 are not communicated, and the air outlet pipe 4 and the exhaust pipe 5 are communicated; when the electromagnetic valve 2 is opened, the air inlet pipe 3 and the air outlet pipe 4 are in a communicated state, and the air outlet pipe 4 and the exhaust pipe 5 are not in a communicated state.
The air inlet pipe 3 is connected with the second connecting port 15, and can convey high-pressure air in the communicating chamber 20 to the control chamber 6 through the air outlet pipe 4.
The upper section of the valve rod 7 is arranged in the control chamber 6, the protruding ring 19 is arranged outside the upper section of the valve rod 7, and a sealing ring is arranged between the protruding ring 19 and the outer wall of the control chamber 6 to ensure air tightness; the volume of the control chamber 6 can be changed because the valve rod 7 can slide up and down, when the valve rod 7 slides down, namely the protruding ring 19 moves down, the volume of the control chamber 6 becomes larger, and conversely, when the valve rod 7 slides up, namely the protruding ring 19 moves up, the volume of the control chamber 6 becomes smaller; when the high-pressure gas enters the control chamber 6, the gas pressure of the control chamber 6 is increased, the valve rod 7 slides downwards in order to balance the pressure, and when the volume is increased to a certain degree, namely the thrust of the gas pressure in the control chamber 6 to the valve rod 7 is equal to the elastic force of the return spring 12 or the position of the valve rod 7 reaches a limit position, the valve rod 7 stops sliding downwards; when the air pressure in the control chamber 6 is reduced, the valve rod 7 slides back up to the initial position under the action of the return spring 12.
The lower section of the valve rod 7 is arranged in the braking chamber 13, the diaphragm 11 and the return spring 12 are arranged outside the lower section of the valve rod 7, the outer ring of the diaphragm 11 is connected with the shell 1, and the inner ring of the diaphragm 11 is connected with the valve body; the upper end of a return spring 12 is connected with the valve rod 7, the lower end of the return spring 12 is connected with the shell 1, the return spring 12 applies upward thrust to the valve rod 7, the valve rod 7 is always in an initial position in a natural state, at the moment, the valve 9 is tightly contacted with the upper end of the piston ring 8, and the brake chamber 13 and the communication chamber 20 are not communicated.
A piston ring 8 is arranged in the communicating chamber 20, a retainer ring 10 is arranged at the lower end in the piston ring 8, a valve 9 is arranged between the piston ring 8 and the retainer ring 10, the valve 9 can slide in the vertical direction, and a sealing ring is arranged between the valve 9 and the retainer ring 10 to ensure the air tightness; the valve 9 is sleeved with a spring, the lower end of the spring is connected with the retainer ring 10, the upper end of the spring is connected with the upper end platform of the valve 9, the valve 9 is always positioned at the uppermost end under the action of the spring in an initial state, and the valve 9 is in close contact with the upper end of the piston ring 8 at the moment, so that the braking chamber 13 and the communication chamber 20 are not communicated.
The first connecting port 14, the second connecting port 15 and the third connecting port 16 are respectively connected with an auxiliary air cylinder and are communicated together through a communication chamber 20;
the upper end of the first connecting port 14 is connected with a normally-open connecting port 17, and a one-way valve 18 is arranged between the first connecting port 14 and the normally-open connecting port 17; the normally-open air connector 17 is connected with a main air storage cylinder; the main air reservoir is an air reservoir normally arranged on the main vehicle, the main air reservoir conveys air to the normally-open air connecting port 17, when the air in the auxiliary air reservoir is insufficient, the check valve 18 is opened because the air pressure of the normally-open air connecting port 17 is larger than that of the first connecting port 14, and the high-pressure air of the main air reservoir can be respectively conveyed to each auxiliary air reservoir through the first connecting port 14, the second connecting port 15 and the third connecting port 16; when the gas in the auxiliary gas cylinder is sufficient, the air pressure of the first connecting port 14 is the same as the air pressure of the normally-open connecting port 17, the one-way valve 18 is closed, the passage between the normally-open connecting port 17 and the first connecting port 14 is cut off, and the process of inflating the auxiliary gas cylinder by the main gas cylinder is completed.
When the electromagnetic valve 2 receives a braking signal, the electromagnetic valve 2 is opened, the sealing plug 2-2 moves upwards, the air inlet pipe 3 is communicated with the air outlet pipe 4 through the air inlet valve 2-1, high-pressure air in each auxiliary air storage cylinder is conveyed to the control chamber 6 through the air inlet pipe 3 and the air outlet pipe 4, the air pressure in the control chamber 6 is increased, and the protruding ring 19 receives downward acting force; the valve rod 7 is subjected to the thrust of the return spring 12, the self gravity and the like at the initial position, the acting force breaks the balance of the stress of the valve rod 7, the valve rod 7 slides downwards, the valve rod 7 pushes the valve 9 to slide downwards, the valve 9 is separated from the piston ring 8, the communicating chamber 20 is communicated with the braking chamber 13, and at the moment, high-pressure gas in each auxiliary gas storage cylinder is conveyed to the braking chamber 13 through the first connecting port 14, the second connecting port 15, the third connecting port 16, the communicating chamber 20 and the braking chamber 13 and then conveyed to the trailer braking sub-pump through each pipeline, so that the braking process is completed.
When the brake is not needed, the battery valve is closed, the connection between the air inlet pipe 3 and the air outlet pipe 4 is disconnected, the air outlet pipe 4 is connected with the exhaust pipe 5, the control chamber 6 is connected with the outside through the air outlet pipe 4 and the exhaust pipe 5, the valve rod 7 returns to the initial position under the action of the return spring 12 and the like, the volume of the control chamber 6 is reduced, and redundant gas in the control chamber 6 is exhausted to the outside through the air outlet pipe 4 and the exhaust pipe 5; when the valve rod 7 returns to the initial position, the valve 9 also returns to the initial position, the valve 9 is tightly attached to the piston ring 8, the communication chamber 20 is disconnected from the brake chamber 13, and the brake cylinders do not have a gas source and do not brake any more.
After the braking process is finished, the air in the auxiliary air cylinders is insufficient, and because the air pressure of the normally-open air connecting port 17 is larger than the air pressure of the first connecting port 14, the one-way valve 18 is opened, the high-pressure air of the main air cylinder can be respectively conveyed to each auxiliary air cylinder through the first connecting port 14, the second connecting port 15 and the third connecting port 16; when the gas in the auxiliary gas cylinder is sufficient, the air pressure of the first connecting port 14 is the same as the air pressure of the normally-open connecting port 17, the one-way valve 18 is closed, the passage between the normally-open connecting port 17 and the first connecting port 14 is cut off, and the process of inflating the auxiliary gas cylinder by the main gas cylinder is completed.
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 (7)
1. A controllable advanced braking device of a trailer comprises a shell (1), an electromagnetic valve (2), an air inlet pipe (3), an air outlet pipe (4), a control chamber (6), a valve rod (7), a piston ring (8), a valve (9), a check ring (10), a braking chamber (13), a protruding ring (19) and a communicating chamber (20); the method is characterized in that:
the electromagnetic valve (2), the air inlet pipe (3), the air outlet pipe (4), the control chamber (6), the valve rod (7), the piston ring (8), the valve (9) and the braking chamber (13) are all arranged inside the shell (1); the upper end of the air inlet pipe (3) is communicated with the electromagnetic valve (2), the lower end of the air outlet pipe (4) is communicated with the electromagnetic valve (2), and the upper end of the air outlet pipe (4) is communicated with the control chamber (6);
the upper section of the valve rod (7) is arranged in the control chamber (6), the lower section of the valve rod (7) is arranged in the braking chamber (13), the upper section of the valve rod (7) is provided with a protruding ring (19), and a sealing ring is arranged between the protruding ring (19) and the control chamber (6); the lower end of the valve rod (7) is connected with a valve (9);
the communicating chamber (20) is internally provided with a piston ring (8), a valve (9) and a retainer ring (10), the retainer ring (10) is arranged at the lower part of the piston ring (8), and the valve (9) is arranged between the piston ring (8) and the retainer ring (10) in a sliding manner.
2. Controllable advance braking device of a trailer according to claim 1, characterized in that: the electromagnetic valve (2) comprises an intake valve (2-1) and a sealing plug (2-2), the lower end of the intake valve (2-1) is communicated with an intake pipe (3), the upper end of the intake valve (2-1) is communicated with an air outlet pipe (4), and the sealing plug (2-2) is arranged inside the intake valve (2-1) in a slidable mode.
3. Controllable advance braking device of a trailer according to claim 1, characterized in that: a diaphragm (11) and a return spring (12) are arranged in the brake chamber (13), the inner ring of the diaphragm (11) is connected with the valve rod (7), and the outer ring of the diaphragm (11) is connected with the shell (1); the valve rod (7) is sleeved with the return spring (12), the upper end of the return spring (12) is connected with the valve rod (7), and the lower end of the return spring (12) is connected with the shell (1).
4. Controllable advance braking device of a trailer according to claim 1, characterized in that: the upper end of the electromagnetic valve (2) is connected with an exhaust pipe (5), and the exhaust pipe (5) is communicated to the outside of the shell (1).
5. Controllable advance braking device of a trailer according to claim 1, characterized in that: a first connecting port (14), a second connecting port (15), a third connecting port (16) and a normally-open connecting port (17) are arranged at the lower part of the shell (1), the second connecting port (15) is communicated with the third connecting port (16), and a one-way valve (18) is arranged between the first connecting port (14) and the normally-open connecting port (17); the first connecting port (14) and the second connecting port (15) are both communicated with the communicating chamber (20).
6. Controllable advance braking device of a trailer according to claim 1, characterized in that: a sealing ring is arranged between the piston ring (8) and the shell (1), and a sealing ring is arranged between the retainer ring (10) and the piston ring (8).
7. Controllable pre-braking device of a trailer according to claim 5, characterized in that: the first connecting port (14), the second connecting port (15) and the third connecting port (16) are all connected with auxiliary air cylinders, and the normally-open air connecting port (17) is connected with a main air cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921668465.9U CN210554749U (en) | 2019-10-08 | 2019-10-08 | Controllable advance braking device for trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921668465.9U CN210554749U (en) | 2019-10-08 | 2019-10-08 | Controllable advance braking device for trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210554749U true CN210554749U (en) | 2020-05-19 |
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ID=70675405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921668465.9U Active CN210554749U (en) | 2019-10-08 | 2019-10-08 | Controllable advance braking device for trailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210554749U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113500989A (en) * | 2021-08-11 | 2021-10-15 | 山东康健汽车配件科技股份有限公司 | Electric control exhaust and air supply dual-braking relay valve |
| CN113500988A (en) * | 2021-08-11 | 2021-10-15 | 山东康健汽车配件科技股份有限公司 | Electric control exhaust brake device |
-
2019
- 2019-10-08 CN CN201921668465.9U patent/CN210554749U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113500989A (en) * | 2021-08-11 | 2021-10-15 | 山东康健汽车配件科技股份有限公司 | Electric control exhaust and air supply dual-braking relay valve |
| CN113500988A (en) * | 2021-08-11 | 2021-10-15 | 山东康健汽车配件科技股份有限公司 | Electric control exhaust brake device |
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