CN217804688U - Braking system and vehicle - Google Patents
Braking system and vehicle Download PDFInfo
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- CN217804688U CN217804688U CN202222002991.XU CN202222002991U CN217804688U CN 217804688 U CN217804688 U CN 217804688U CN 202222002991 U CN202222002991 U CN 202222002991U CN 217804688 U CN217804688 U CN 217804688U
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Abstract
The utility model provides a braking system and vehicle relates to vehicle braking technical field, and this braking system includes manual brake valve, trailer valve, solenoid valve, differential valve, gas storage device and service brake air chamber, gas storage device respectively with the air inlet of manual brake valve the air inlet of trailer valve and the air inlet intercommunication of differential valve, the gas outlet of manual brake valve be used for with the parking control circuit intercommunication of the control mouth of trailer valve and vehicle, the gas outlet of trailer valve passes through the solenoid valve with the control mouth intercommunication of differential valve, the gas outlet of differential valve with service brake air chamber intercommunication. The utility model discloses can reduce greatly and lead to the condition on vehicle swift current slope because parking braking force is not enough.
Description
Technical Field
The utility model relates to a vehicle braking technical field particularly, relates to a braking system and vehicle.
Background
After the vehicle parks, if the driver need leave the vehicle temporarily, for guaranteeing parking safety, common mode is for adopting the manual brake valve, the gas holder, parking brake air chamber and stopper cooperation are in order realizing interim parking, when the manual brake of manual brake valve is not pull up promptly, the manual brake valve is in the on-state, compressed air in the gas holder enters into parking brake air chamber through the manual brake valve, parking brake air chamber makes the stopper not brake, when the manual brake of manual brake valve is pulled up, the manual brake valve is in the truncation state, the gas holder is no longer to parking brake air chamber air feed, compressed air in the parking brake air chamber releases to the atmosphere in, the spring promotion brake block of stopper brakes, realize parking brake.
However, the braking force of the parking brake is generally only 60% to 80% of the driving braking force, even a part of axles of the vehicle cannot be provided with a parking air chamber due to space limitation, and when the vehicle needs to temporarily stop on a large slope, a situation of slope slipping caused by insufficient parking braking force may occur, so that a potential safety hazard exists.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that parking braking force is not enough and leads to vehicle swift current slope, the utility model provides a braking system and vehicle.
In one aspect, the utility model provides a braking system, including manual brake valve, trailer valve, solenoid valve, differential valve, gas storage device and service brake air chamber, gas storage device respectively with the air inlet of manual brake valve the air inlet of trailer valve and the air inlet intercommunication of differential valve, the gas outlet of manual brake valve be used for with the parking control circuit intercommunication of the control mouth of trailer valve and vehicle, the gas outlet of trailer valve passes through the solenoid valve with the control mouth intercommunication of differential valve, the gas outlet of differential valve with service brake air chamber intercommunication.
Optionally, the brake system further comprises a connecting pipe, the air outlet of the trailer valve is connected with the air inlet of the electromagnetic valve through the connecting pipe, and a pressure limiting valve is arranged on the connecting pipe.
Optionally, the gas storage device includes a first gas storage device and a second gas storage device, the first gas storage device is respectively communicated with the gas inlet of the hand brake valve and the gas inlet of the trailer valve, and the second gas storage device is communicated with the gas inlet of the differential valve.
Optionally, the braking system further includes a foot brake valve, an air inlet of the foot brake valve is communicated with the air storage device, and an air outlet of the foot brake valve is connected with a control port of the differential valve.
Optionally, the number of the service brake chambers is N pairs, each of the service brake chambers is respectively communicated with the air outlet of the differential valve, and N is an integer greater than 1.
Optionally, the differential valve is provided with N air outlets, and the N air outlets are respectively arranged in one-to-one correspondence with the N service brake chambers.
Optionally, the brake system further comprises a switch, the switch and the solenoid valve being connected in series in the same circuit.
Optionally, the switch is a push switch, a toggle switch, or a twist switch.
Optionally, the braking system further comprises an air outlet pipe and a communicating pipe, one end of the air outlet pipe is communicated with an air outlet of the hand brake valve, the other end of the air outlet pipe is used for being communicated with the parking control loop, one end of the communicating pipe is communicated with a control opening of the trailer valve, and the other end of the communicating pipe is communicated with the air outlet pipe.
In another aspect, the present invention provides a vehicle including a braking system as described above.
Compared with the prior art, the beneficial effects of the utility model are that:
the air storage device supplies air to the hand brake valve, the trailer valve and the differential valve, because the air outlet of the hand brake valve is respectively communicated with the control port of the trailer valve and the parking control loop of the vehicle, when the hand brake of the hand brake valve is not pulled up, the hand brake valve is in a conducting state, part of compressed air of the air storage device flows to the control port of the trailer valve through the hand brake valve, so that the trailer valve is in a cut-off state, the compressed air of the air storage device cannot pass through the trailer valve, and part of the compressed air of the air storage device flows to the parking control loop of the vehicle through the hand brake valve, so that the parking brake is in a failure state; when a hand brake of the hand brake valve is pulled up, the hand brake valve is in a cut-off state, compressed air of the air storage device does not supply air to the parking control loop any more, parking braking is realized, the compressed air of the air storage device does not flow to a control port of the trailer valve through the hand brake valve any more, air pressure at the control port of the trailer valve is reduced so that the trailer valve is in a conduction state, the compressed air of the air storage device can flow to a control port of the differential valve through the trailer valve and the electromagnetic valve at the moment so that the differential valve is conducted, and then the compressed air of the air storage device can flow to a service brake air chamber through the differential valve for auxiliary braking; when the vehicle needs to be temporarily stopped on a larger slope, the electromagnetic valve conducts a gas circuit between the trailer valve and the differential valve due to insufficient parking braking force, and when the hand brake is pulled up, the service brake air chamber can perform auxiliary braking, so that the condition that the vehicle slides down the slope due to insufficient parking braking force is greatly reduced.
Drawings
FIG. 1 is a schematic view of an embodiment of a braking system of the present invention;
fig. 2 is a schematic view of another embodiment of the brake system of the present invention.
Description of the reference numerals:
1. a hand brake valve; 2. a trailer valve; 3. an electromagnetic valve; 4. a differential valve; 5. a service brake chamber; 6. a connecting pipe; 7. a pressure limiting valve; 8. a first gas storage device; 9. a second gas storage device; 10. a foot brake valve; 11. a switch; 12. an air outlet pipe; 13. a communicating pipe; 14. a parking brake chamber; 15. and a third gas storage device.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
In the present embodiment, the terms "first" and "second" are used for descriptive purposes only and are 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" and "second" may explicitly or implicitly include at least one of the feature.
As shown in fig. 1, the embodiment of the utility model provides a braking system, including manual brake valve 1, trailer valve 2, solenoid valve 3, differential valve 4, gas storage device and service brake air chamber 5, gas storage device respectively with manual brake valve 1's air inlet, trailer valve 2's air inlet and differential valve 4's air inlet intercommunication, manual brake valve 1's gas outlet be used for with trailer valve 2's control port and the parking control circuit intercommunication of vehicle, trailer valve 2's gas outlet is passed through solenoid valve 3 and differential valve 4's control port intercommunication, differential valve 4's gas outlet and service brake air chamber 5 intercommunication.
In the present embodiment, the hand brake valve 1 is provided in the cab for parking braking. The hand brake valve 1 has an air inlet, an air outlet, and an air outlet. In the driving process, an air inlet and an air outlet of the hand brake valve 1 are communicated, compressed air in the air storage tank enters the parking brake air chamber 14 through the hand brake valve 1, and the parking brake air chamber 14 enables the brake not to brake. When parking braking is needed, the hand brake of the hand brake valve 1 is pulled up, the air inlet and the air outlet of the hand brake valve 1 are cut off, the air storage tank does not supply air to the parking braking air chamber 14 any more, compressed air in the parking braking air chamber 14 is released to the atmosphere through the air outlet of the hand brake valve 1, and the spring of the brake pushes the brake pad to brake, so that the parking braking is realized.
The utility model discloses in, gas storage device is to manual brake valve 1, trailer valve 2 and differential valve 4 air feed, because the gas outlet of manual brake valve 1 communicates with the control mouth of trailer valve 2 and the parking control circuit of vehicle respectively, when the manual brake of manual brake valve 1 is not drawn up, manual brake valve 1 is in the on-state, a part of compressed air of gas storage device flows to the control mouth of trailer valve 2 through manual brake valve 1, so that trailer valve 2 is in the off-state, the compressed air of gas storage device can not pass through trailer valve 2, a part of compressed air of gas storage device flows to the parking control circuit of vehicle through manual brake valve 1, so that parking braking is in failure state; when the hand brake of the hand brake valve 1 is pulled up, the hand brake valve 1 is in a cut-off state, compressed air of the air storage device does not supply air to the parking control loop any more, parking braking is realized, the compressed air of the air storage device does not flow to the control port of the trailer valve 2 through the hand brake valve 1 any more, air pressure at the control port of the trailer valve 2 is reduced to enable the trailer valve 2 to be in a conduction state, at the moment, the compressed air of the air storage device can flow to the control port of the differential valve 4 through the trailer valve 2 and the electromagnetic valve 3 to enable the differential valve 4 to be conducted, and further the compressed air of the air storage device can flow to the service brake air chamber 5 through the differential valve 4 to perform auxiliary braking, as the air outlet of the trailer valve 2 is communicated with the control port of the differential valve 4 through the electromagnetic valve 3, the electromagnetic valve 3 can conduct or cut off an air path between the trailer valve 2 and the differential valve 4, and further can select whether to conduct an air path between the trailer valve 2 and the differential valve 4 according to actual conditions, for example, when a vehicle is temporarily parked at a small gradient, the braking force is sufficient, the electromagnetic valve 3 cuts off the air path between the parking valve 2 and the parking control path between the parking control valve 4; when the vehicle needs to be temporarily stopped on a larger slope, the electromagnetic valve 3 conducts the air path between the trailer valve 2 and the differential valve 4 due to insufficient parking braking force, and the service brake air chamber 5 can perform auxiliary braking when the hand brake is pulled up, so that the condition that the vehicle slips on the slope due to insufficient parking braking force is greatly reduced.
Optionally, the brake system further comprises a connecting pipe 6, the air outlet of the trailer valve 2 is connected with the air inlet of the electromagnetic valve 3 through the connecting pipe 6, and the connecting pipe 6 is provided with a pressure limiting valve 7.
As shown in fig. 1, the trailer valve 2 is connected to the solenoid valve 3 through a connecting pipe 6, that is, an air outlet of the trailer valve 2 is connected to an air inlet of the solenoid valve 3 through the connecting pipe 6, and a pressure limiting valve 7 is disposed on the connecting pipe 6.
Therefore, when the automobile is parked, the pressure limiting valve 7 can adjust the air pressure to be within a set pressure range, so that the braking force output by the service brake air chamber 5 cannot be attenuated, and the temporary parking function is prevented from being influenced by air pressure fluctuation. In some embodiments, the upper pressure limit of the pressure limiting valve 7 may be set to 0.65MPa. Thus, even if the air pressure is attenuated, the brake system does not affect the parking assist performance until the pressure is attenuated to the set pressure of the pressure limiting valve 7.
Optionally, the braking system further includes a foot brake valve 10, an air inlet of the foot brake valve 10 is communicated with an air storage device, and an air outlet of the foot brake valve 10 is connected with a control port of the differential valve 4.
In this embodiment, the service brake valve 10 is disposed in the cab of the vehicle for service braking. The foot brake valve 10 has an air inlet and an air outlet. In the running process, the valve of the foot brake valve 10 is in a disconnected state, the air path between the air inlet and the air outlet of the foot brake valve 10 is cut off, and the compressed air of the air storage device can not flow to the running brake air chamber 5 through the foot brake valve 10. When service braking is needed, the pedal of the foot brake valve 10 is stepped, the valve of the foot brake valve 10 is in a closed state, an air path between an air inlet and an air outlet of the foot brake valve 10 is conducted, and compressed air of the air storage device flows to the service braking air chamber 5 through the foot brake valve 10.
In this embodiment, the differential valve 4 is provided with a first control port and a second control port, the trailer valve 2 is communicated with the first control port of the differential valve 4 through the electromagnetic valve 3, and the service brake valve 10 is communicated with the second control port of the differential valve 4, at this time, no matter which of the first control port and the second control port of the differential valve 4 is ventilated, the air paths of the air inlet and the air outlet of the differential valve 4 are conducted, so that the air storage device is promoted to inflate the service brake air chamber 5, and braking is realized.
Optionally, the gas storage devices include a first gas storage device 8 and a second gas storage device 9, the first gas storage device 8 is respectively communicated with the gas inlet of the hand brake valve 1 and the gas inlet of the trailer valve 2, and the second gas storage device 9 is communicated with the gas inlet of the differential valve 4.
As shown in fig. 1, the first air storage device 8 may also be referred to as a parking brake air storage device, and the first air storage device 8 is respectively communicated with an air inlet of the hand brake valve 1 and an air inlet of the trailer valve 2 so as to supply air to the hand brake valve and the trailer valve; the second air reservoir 9, which may also be referred to as a service brake air reservoir, is in communication with the air inlet of the differential valve 4 so as to supply air to the differential valve 4. The second air storage device 9 can also be communicated with the air inlet of the foot brake valve 10.
Therefore, the air circuit works independently, the problem that a common air storage device is used can be avoided, and when the air circuit fails, the service brake and the parking brake cannot be realized, so that potential safety hazards exist.
In other embodiments, as shown in fig. 2, the air storage device further includes a third air storage device 15, and the third air storage device is communicated with the air inlet of the foot brake valve 10.
In other embodiments, the handbrake valve 1, the trailer valve 2, the differential valve 4 and the foot brake valve 10 may also share one air storage device, i.e. one air storage device is respectively communicated with the air inlet of the handbrake valve 1, the air inlet of the trailer valve 2, the air inlet of the differential valve 4 and the air inlet of the foot brake valve 10. Therefore, the cost is reduced, the gas storage devices are not required to be installed at multiple positions, and the space is saved.
Optionally, the number of the service brake chambers 5 is N, each service brake chamber of the N service brake chambers 5 is respectively communicated with the air outlet of the differential valve 4, and N is an integer greater than 1.
As shown in fig. 1, two service brake chambers 5 are provided, the two service brake chambers 5 are respectively communicated with the air outlet of the differential valve 4, one of the two service brake chambers 5 may be a front axle service brake chamber 5, the other one may be a front axle service brake chamber 5, or both of the two service brake chambers may be the front axle service brake chamber 5 or the rear axle service brake chamber 5, which is not limited herein and is determined according to actual requirements.
Thus, after the differential valve 4 is ventilated, the compressed air of the air storage device flows to the service brake air chamber 5 to realize braking.
In other embodiments, the number of the service brake chambers 5 can also be three or four, which is not limited herein and depends on actual requirements. For example, the outlet of the differential valve 4 communicates with two front axle service brake chambers 5 and two rear axle service brake chambers 5, respectively.
Optionally, the differential valve 4 is provided with N air outlets, and the N air outlets are respectively arranged in one-to-one correspondence with the N service brake chambers 5.
As shown in fig. 1, the differential valve 4 has two air outlets, and the two service brake chambers 5 and the two air outlets are disposed in one-to-one correspondence. When one air outlet of the differential valve 4 is damaged, the normal work of other air outlets of the differential valve 4 can not be influenced.
It is to be understood that the present embodiment does not exclude the way in which the N outlets communicate with one and the same outlet of the differential valve 4.
Optionally, the braking system further comprises a switch 11, the switch 11 being in series with the solenoid valve 3 in the same circuit.
In this embodiment, the switch 11 is disposed in the cab, and since the switch 11 and the electromagnetic valve 3 are connected in series in the same circuit, the electromagnetic valve 3 can be powered on and powered off through the switch 11. As shown in fig. 1, the solenoid valve 3 is a normally closed solenoid valve 3 for cutting off the air path between the trailer valve 2 and the differential valve 4 when not conducting electricity; when the electromagnetic valve 3 is electrified, the electromagnetic valve 3 is changed from normally closed to normally open and is used for conducting the air path between the trailer valve 2 and the differential valve 4. In this way, the switch 11 is used to facilitate manual control of the operating state of the solenoid valve 3.
In the present embodiment, the switch 11 is a push switch 11, a toggle switch 11, or a twist switch 11. The method is not limited and depends on actual requirements.
Optionally, the braking system further comprises an air outlet pipe 12 and a communicating pipe 13, wherein one end of the air outlet pipe 12 is communicated with an air outlet of the hand brake valve 1, the other end of the air outlet pipe is used for being communicated with a parking control loop of the vehicle, one end of the communicating pipe 13 is communicated with a control port of the trailer valve 2, and the other end of the communicating pipe is communicated with the air outlet pipe 12.
As shown in fig. 1, the hand brake valve 1 is provided with an air outlet, one end of an air outlet pipe 12 is communicated with the air outlet of the hand brake valve 1, the other end of the air outlet pipe is used for being communicated with a parking brake air chamber 14 of a vehicle, one end of a communicating pipe 13 is communicated with a control port of the trailer valve 2, and the other end of the communicating pipe is communicated with the air outlet pipe 12. Thus, when the hand brake of the hand brake valve 1 is not pulled up, a part of the compressed air flowing out of the air outlet of the hand brake valve 1 flows into the parking brake air chamber 14, and the other part flows into the control port of the trailer valve 2. After the hand brake of the hand brake valve 1 is pulled up, the air inlet and the air outlet of the hand brake valve 1 are cut off, the air outlet and the air outlet are communicated, and the parking brake air chamber 14 is released to the atmosphere through the air outlet of the hand brake valve 1, so that the spring of the brake pushes the brake pad to brake.
Another embodiment of the present invention provides a vehicle including a braking system as described above.
The vehicle of the present embodiment has the same advantages as the above-mentioned braking system with respect to the prior art, and therefore, the detailed description thereof is omitted.
The reader should understand that in the description of this specification, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example" or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.
Claims (10)
1. A braking system is characterized by comprising a hand brake valve, a trailer valve, a solenoid valve, a differential valve, a gas storage device and a service brake air chamber, wherein the gas storage device is respectively communicated with a gas inlet of the hand brake valve, a gas inlet of the trailer valve and a gas inlet of the differential valve, a gas outlet of the hand brake valve is communicated with a control port of the trailer valve and a parking control loop of a vehicle, a gas outlet of the trailer valve is communicated with a control port of the differential valve through the solenoid valve, and a gas outlet of the differential valve is communicated with the service brake air chamber.
2. The brake system as claimed in claim 1, further comprising a connecting pipe, wherein the air outlet of the trailer valve is communicated with the air inlet of the solenoid valve through the connecting pipe, and the connecting pipe is provided with a pressure limiting valve.
3. The braking system of claim 1, wherein the air storage device includes a first air storage device in communication with the air inlet of the handbrake valve and the air inlet of the trailer valve, respectively, and a second air storage device in communication with the air inlet of the differential valve.
4. The brake system according to claim 1, further comprising a foot brake valve, wherein an air inlet of the foot brake valve is communicated with the air storage device, and an air outlet of the foot brake valve is connected with a control port of the differential valve.
5. The brake system as recited in claim 1 wherein said service brake chambers are in a number of N pairs, each of said N pairs of service brake chambers being in communication with an outlet port of said differential valve, N being an integer greater than 1.
6. The brake system of claim 5 wherein said differential valve has N air outlets, and wherein N air outlets are disposed in one-to-one correspondence with N service brake chambers.
7. The braking system of claim 1, further comprising a switch in series with the solenoid valve in the same circuit.
8. The braking system of claim 7, wherein the switch is a push switch, a toggle switch, or a twist switch.
9. The brake system according to claim 1, further comprising an air outlet pipe and a communicating pipe, wherein one end of the air outlet pipe is communicated with the air outlet of the hand brake valve, the other end of the air outlet pipe is used for being communicated with the parking control loop, one end of the communicating pipe is communicated with the control opening of the trailer valve, and the other end of the communicating pipe is communicated with the air outlet pipe.
10. A vehicle characterized by comprising a braking system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222002991.XU CN217804688U (en) | 2022-07-29 | 2022-07-29 | Braking system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222002991.XU CN217804688U (en) | 2022-07-29 | 2022-07-29 | Braking system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217804688U true CN217804688U (en) | 2022-11-15 |
Family
ID=83970638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222002991.XU Active CN217804688U (en) | 2022-07-29 | 2022-07-29 | Braking system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217804688U (en) |
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2022
- 2022-07-29 CN CN202222002991.XU patent/CN217804688U/en active Active
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