CN213973954U - Brake system for vehicle - Google Patents
Brake system for vehicle Download PDFInfo
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- CN213973954U CN213973954U CN202023229283.7U CN202023229283U CN213973954U CN 213973954 U CN213973954 U CN 213973954U CN 202023229283 U CN202023229283 U CN 202023229283U CN 213973954 U CN213973954 U CN 213973954U
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Abstract
The utility model provides a braking system of vehicle, include: the reversing unit is provided with a first through hole, a second through hole and a third through hole which can be communicated and used for switching the direction of the air flow; wherein the third port is selectively in communication with the first port or the second port; the parking air cylinder is communicated with the third port and used for supplying air to the third port; the upper air storage cylinder is communicated with the first port and used for supplying air to an upper actuating mechanism of the vehicle; and the parking hand valve is communicated with the second port and is used for parking braking. Therefore, the upper part and the chassis of the automobile can not work simultaneously, for example, the upper part can not work when the chassis is in a running state, and the running safety of the automobile is ensured; the chassis can not run during the top loading operation, thereby ensuring the operation safety of the top loading.
Description
Technical Field
The utility model relates to a braking technical field, in particular to braking system of vehicle.
Background
The existing brake gas circuit system of the special vehicle mainly comprises a chassis brake gas circuit and a loading brake gas circuit, wherein the loading refers to a part above a vehicle chassis and comprises a carriage, an operation cab, an operation platform and various tool equipment arranged on the operation platform.
The existing vehicle braking air circuit system generally has the following problems: because of the actual use demand, the driver's cabin and the control chamber of special type car are separated, and chassis and facial make-up are used gas jointly, and both operations can influence each other, cause the driving danger because of misoperation easily.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a braking system of vehicle to solve among the prior art vehicle because the common gas of chassis and facial make-up and influence the problem of interference each other.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a braking system for a vehicle, comprising: the reversing unit is provided with a first through hole, a second through hole and a third through hole which can be communicated and used for switching the direction of the air flow; wherein the third port is selectively in communication with the first port or the second port; the parking air cylinder is communicated with the third port and used for supplying air to the third port; the upper air storage cylinder is communicated with the first port and used for supplying air to an upper actuating mechanism of the vehicle; and the parking hand valve is communicated with the second port and is used for parking braking.
According to the utility model discloses an embodiment, it has a plurality ofly, and is a plurality of to go up the dress gas receiver and establish ties and communicate with each other.
According to an embodiment of the present invention, the brake system further comprises an air compressor and an air supply pipe; the inlet of the air supply pipe is communicated with the air outlet of the air compressor, and the outlet of the air supply pipe is communicated with the parking air storage cylinder and the third through hole respectively.
According to an embodiment of the present invention, the brake system further comprises an air reservoir for shifting; the gear shifting air storage cylinder is communicated with an air outlet of the air compressor through a pipeline so as to supply air to a gear shifting air cylinder of a transmission of a vehicle.
According to an embodiment of the invention, the brake system further comprises a multi-circuit protection valve; and the air inlet of the multi-loop protection valve is communicated with the air outlet of the air compressor, and the air outlet of the multi-loop protection valve is correspondingly communicated with the parking air storage cylinder and the gear shifting air storage cylinder respectively.
According to an embodiment of the present invention, the brake system further comprises a front axle air reservoir and a rear axle air reservoir; the multi-loop protection valve is a four-loop protection valve; and the gas outlet of the multi-loop protection valve is also correspondingly communicated with the front axle gas cylinder and the rear axle gas cylinder respectively.
According to an embodiment of the invention, the brake system further comprises a dryer; the dryer is arranged between the air inlet of the multi-loop protection valve and the air outlet of the air compressor.
According to an embodiment of the invention, the reversing unit is a rotary reversing valve.
According to an embodiment of the present invention, the brake system further comprises a differential relay valve; the outlet of the parking air cylinder is connected with the air inlet of the differential relay valve; and the outlet of the parking hand valve is connected with the control port of the differential relay valve.
According to the above technical scheme, the utility model provides a pair of braking system of vehicle has following advantage and positive effect at least:
by utilizing the three ports of the reversing unit, which can switch the airflow direction, the parking air cylinder communicated with the third port can be used as an air supply source, and the air cylinder can be selectively upwards installed or the parking hand valve can supply air, so that the mutual interference between the chassis and the upper installation during working is avoided. Specifically, when the first through hole is communicated with the third through hole, the parking air cylinder is communicated with the upper air cylinder, and the upper actuating mechanism is inflated and can normally work; the second port is not communicated with the third port, the parking hand valve is free of air, and the vehicle stops moving and is in a parking state. When the second port is communicated with the third port, the parking air storage cylinder is communicated with the parking hand valve, the parking hand valve is inflated, and the vehicle can normally run; the first port is not communicated with the third port, the upper air storage cylinder is free of air, and the upper actuating mechanism stops operating. Therefore, the upper part and the chassis of the automobile can not work simultaneously, for example, the upper part can not work when the chassis is in a running state, and the running safety of the automobile is ensured; the chassis can not run during the top loading operation, thereby ensuring the operation safety of the top loading.
Drawings
Fig. 1 is a partial schematic view of a brake system of a vehicle according to an embodiment of the present invention.
Fig. 2 is an overall schematic view of the brake system in fig. 1.
The reference numerals are explained below:
1-reversing unit, 101-first port, 102-second port, 103-third port,
2-parking air cylinder,
3-installing an air storage cylinder,
4-parking hand valve,
5-an air compressor,
6-air supply pipe, 61-main air supply pipe, 62-branch pipe,
71-an air cylinder for gear shifting, 72-a gear shifting hand valve, 73-a gear box, 75-a front axle air cylinder, 76-a rear axle air cylinder,
81-multi-loop protection valve, 82-dryer,
91-differential relay valve, 92-master brake valve, 93-relay valve, 94-brake air chamber,
Detailed Description
Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.
The embodiment provides a braking system of vehicle, with parking gas receiver optional with upwards adorn gas receiver or parking hand valve air feed to switch the air feed source of chassis and facial make-up, avoid chassis and facial make-up to work mutual interference.
Referring to fig. 1, fig. 1 shows a specific structure of a brake system of a vehicle according to an embodiment, which includes a reversing unit 1, a parking air cylinder 2, an upper air cylinder 3, and a parking hand valve 4. The reversing unit 1 is provided with a first through hole 101, a second through hole 102 and a third through hole 103 which can be communicated for switching the direction of air flow; wherein the third port 103 is selectively communicated with the first port 101 or the second port 102; the parking air cylinder 2 is communicated with the third port 103 and used for supplying air to the third port 103; the upper air storage cylinder 3 is communicated with the first port 101 and used for supplying air to an upper actuating mechanism of the vehicle; the parking hand valve 4 is communicated with the second port 102 for parking brake.
The reversing unit 1 has a first port 101, a second port 102 and a third port 103 that are communicable for switching the direction of the gas flow.
In the present embodiment, the reversing unit 1 is embodied as a rotary reversing unit 1, referred to as rotary valve for short.
The reversing unit 1 comprises a valve body, a valve core movably arranged in the valve body and an operating handle for rotating the valve core. The first port 101 of the direction changing unit 1 is a port a, the second port 102 is a port B, and the third port 103 is a port P.
When the operating handle rotates to a working position, the third port 103 (port P) is communicated with the first port 101 (port A), and the second port 102 (port B) is closed; when the operating handle is rotated to another operating position, the third port 103 (port P) communicates with the second port 102 (port B), and the first port 101 (port a) is closed.
The parking air reservoir 2 is a gas pressure device in the chassis brake system of the vehicle for storing compressed air from the air compressor 5 and for parking braking.
In actual use, the parking cylinder 2 communicates with the third port 103 (port P) through a pipe, thereby serving as an air supply source to supply air to the third port 103 (port P).
The second port 102 (port B) communicates with the parking hand valve 4 through a pipe to supply air to the parking hand valve 4. The parking hand valve 4 is operated manually, and can control the parking brake and emergency brake of the automobile.
The first port 101 (port a) communicates with an intake port of the upper air reservoir 3 for supplying air to an upper actuator of the vehicle.
In this embodiment, the upper air storage cylinder 3 has a plurality of upper air storage cylinders 3, and the plurality of upper air storage cylinders 3 are connected in series for increasing the air storage capacity required by the braking of the upper actuator, so as to be required from time to time. The volume of each upper air storage cylinder 3 is the same, and is 40L.
With the view direction of fig. 1 as a standard, a plurality of upper air cylinders 3 are sequentially communicated from left to right, and an air inlet of a first upper air cylinder 3 on the left is communicated with a first through hole 101(a hole) of the reversing unit 1 through a pipeline; the air outlet of any upper air storage cylinder 3 is communicated with the air inlet of the actuating mechanism through a pipeline.
In this embodiment, the brake system further comprises an air compressor 5.
The air compressor 5, as an important energy supply device in the vehicle brake system, is capable of directly generating compressed air required for braking.
In this embodiment, the brake system further includes an air supply pipe 6.
The inlet of the air supply pipe 6 is communicated with the air outlet of the air compressor 5, and the outlet of the air supply pipe 6 is communicated with the parking air cylinder 2 and the third port 103 respectively.
Specifically, the gas supply pipe 6 includes a gas supply main pipe 61 and two branch pipes 62 that branch off from one end opening of the gas supply main pipe 61. One of the branch pipes 62 communicates with the air inlet of the parking air cylinder 2, and the other branch pipe 62 communicates with the third port 103 (port P) of the reversing unit 1.
When the installed actuator requires gas, the valve body of the reversing unit 1 is actuated so that the third port 103 (port P) communicates only with the first port 101 (port a). Thus, the compressed air from the air compressor 5 is split by the two branch pipes 62 of the air supply pipe 6, one of which flows into the parking air cylinder 2 and the other of which flows into the third port 103 (port P), and the compressed air flows into the upper air cylinder 3 because the third port 103 (port P) communicates with the first port 101 (port a). At this time, the upper air storage cylinder 3 is supplied with air and supplies air to the upper actuating mechanism.
When the chassis brake of the automobile needs to use air, the valve core of the reversing unit 1 acts, so that the third port 103 (port P) is only communicated with the second port 102 (port B). Therefore, the parking air cylinder 2 is communicated with the parking hand valve 4, and the parking hand valve 4 is inflated, so that the vehicle can be controlled to normally run; the upper air storage cylinder 3 is free of air, and the upper actuating mechanism stops working.
Referring to fig. 2 in combination with fig. 1, the braking system of the present embodiment further includes an air cylinder 71 for gear shifting.
The shift air cylinder 71 is connected to and communicates with the air compressor 5 to supply air to a transmission shift cylinder of the vehicle.
The purpose of adding a gas storage cylinder 71 for gear shifting in the embodiment is to supply gas from the gas outlet of the air compressor 5 for assisting, so that the gas for gear shifting is independent, and the condition that the air pressure is insufficient due to misoperation of an operator after parking and the neutral gear cannot be engaged for ignition is prevented.
The shift air cylinder 71 is respectively connected to two shift hand valves 72 (namely, a cab shift hand valve and an operating cab shift hand valve) through two branch pipes 62, and then the shift air pipe and the shift air pipe of the gearbox 73 are connected through the air outlet of the shift hand valve 72, so that the shift air of the vehicle is not influenced by other operations.
Further, the brake system further includes a multi-circuit protection valve 81.
The air inlet of the multi-loop protection valve 81 is communicated with the air outlet of the air compressor 5, the air outlet of the multi-loop protection valve 81 is respectively communicated with the parking air storage cylinder 2 and the gear shifting air storage cylinder 71,
the braking system also includes a front axle air reservoir 75 and a rear axle air reservoir 76 that are independently supplied with air.
The air outlet of the multi-circuit protection valve 81 is also communicated with the air inlets of the front axle air cylinder 75 and the rear axle air cylinder 76 respectively. The air outlets of the front axle air cylinder 75 and the rear axle air cylinder 76 are respectively connected with a master brake valve 92, and further respectively connected and communicated with a front axle brake air chamber 94 and a rear axle brake air chamber 94 of the automobile through a relay valve 93, so as to jointly realize the service braking of the automobile.
Specifically, the multi-circuit protection valve 81 is a four-circuit protection valve. The four-loop protection valve is formed by arranging four pressure-limiting check valves according to a certain relation, so that the shunt supply of an air source in the automobile brake system can be realized, and the independent and normal work of each loop can be ensured. That is, the four-circuit protection valve has four outlets for independent air supply. The four air outlets are respectively connected and communicated with the parking air cylinder 2, the gear shifting air cylinder 71, the front axle air cylinder 75 and the rear axle air cylinder 76 in a one-to-one correspondence manner.
In this way, the above-mentioned multi-circuit protection valve 81 is provided between the air compressor 5 and each air cylinder for distributing the air supply to each air cylinder as required.
In this embodiment, the braking system further includes a dryer 82.
The dryer 82 is disposed between the air inlet of the multi-circuit protection valve 81 and the air outlet of the air compressor 5, and is used for filtering moisture in the compressed air to ensure that the air entering the multi-circuit protection valve 81 is clean and dry.
It should be noted that the parking air cylinder 2, the shift air cylinder 71, the front axle air cylinder 75 and the rear axle air cylinder 76 all obtain compressed air from the air compressor 5 through the multi-circuit protection valve 81 and the dryer 82; and the upper air storage cylinder 3 obtains the compressed air from the parking air storage cylinder 2 through the reversing unit 1, which is equivalent to sharing an air source with the parking air storage cylinder 2, and saves the construction and installation cost of pipelines.
In this embodiment, the braking system further includes a differential relay valve 91.
The outlet of the parking air cylinder 2 is connected with the air inlet of the differential relay valve 91; the outlet of the parking hand valve 4 is connected with the control port of the relay valve 93, so that the parking brake of the automobile is realized.
In order to make those skilled in the art further understand how the brake system provided in the present embodiment works, the working principle of the brake system will be described in detail below.
Compressed air of the air compressor 5 enters the dryer 82 after being cooled by a brake pipeline, and the dried air respectively enters the parking air cylinder 2, the gear shifting air cylinder 71, the front axle air cylinder 75 and the rear axle air cylinder 76 from four air outlets of the four-circuit protection valve.
The air outlets of the front axle air cylinder 75 and the rear axle air cylinder 76 are both connected with a master brake valve 92, and further connected and communicated with a front axle brake air chamber 94 and a rear axle brake air chamber 94 of the automobile through a relay valve 93, so as to realize the service braking of the automobile together.
The outlet of the parking air cylinder 2 is connected with the air inlet of the differential relay valve 91; the outlet of the parking hand valve 4 is connected with the control port of the relay valve 93, so that the parking brake of the automobile is realized.
The gear-shifting air cylinder is respectively connected to two gear-shifting hand valves 72 (namely a cab gear-shifting hand valve 72 and an operating cab gear-shifting hand valve 72) through two branch pipes 62, and then the air outlet of the gear-shifting hand valve 72 is connected to a gear-shifting opening and a gear-shifting opening of a gearbox 73, so that the gear-shifting air used for the vehicle is not influenced by other operations.
Further, the third port 103 (port P) of the reversing unit 1 is communicated with the parking air cylinder 2 through a pipeline, the second port 102 (port B) thereof is communicated with the parking hand valve 4 through a pipeline, and the first port 101 (port a) thereof is communicated with the air inlet of the upper charging air cylinder 3.
When the installed actuator requires gas, the valve body of the reversing unit 1 is actuated so that the third port 103 (port P) communicates with the first port 101 (port a) and the second port 102 (port B) is closed. Thus, the compressed air from the air compressor 5 is split by the two branch pipes 62 of the air supply pipe 6, one of which flows into the parking air cylinder 2 and the other of which flows into the third port 103 (port P), and the compressed air flows into the upper air cylinder 3 because the third port 103 (port P) communicates with the first port 101 (port a). At this time, the upper air storage cylinder 3 is supplied with air and supplies air to the upper actuating mechanism.
When the chassis brake of the automobile needs to use air, the valve core of the reversing unit 1 acts, so that the third port 103 (port P) is communicated with the second port 102 (port B), and the first port 101 (port A) is closed. Therefore, the parking air cylinder 2 is communicated with the parking hand valve 4, and the parking hand valve 4 is inflated, so that the vehicle can be controlled to normally run; the upper air storage cylinder 3 is free of air, and the upper actuating mechanism stops working.
To sum up, the utility model provides a pair of braking system of vehicle has following advantage and positive effect at least:
firstly, the chassis and the upper part are interlocked by using three through holes of the reversing unit 1, and the parking air cylinder 2 can only be selectively connected and communicated with the upper part air cylinder 3 or the parking hand valve 4, so that the air supply sources of the chassis and the upper part are switched, and the chassis and the upper part are prevented from mutual interference during working. In particular, the reversing unit 1 is in particular a rotary reversing unit 1, in short a rotary valve. The reversing unit 1 comprises a valve body, a valve core movably arranged in the valve body and an operating handle for rotating the valve core. The first port 101 of the direction changing unit 1 is a port a, the second port 102 is a port B, and the third port 103 is a port P. When the first port 101 is communicated with the third port 103 and the second port 102 is closed, the parking air cylinder 2 is communicated with the upper air cylinder 3, and the upper actuating mechanism is inflated and can work normally; the parking hand valve 4 is not air, and the vehicle stops moving and is in a parking state. When the second port 102 is communicated with the third port 103 and the first port 101 is closed, the parking air cylinder 2 is communicated with the parking hand valve 4, the parking hand valve 4 is inflated, and the vehicle can normally run; the upper air storage cylinder 3 is free of air, and the upper actuating mechanism stops working.
Next, the brake system of the present embodiment further includes an air reservoir 71 for shifting gears. The shift air cylinder 71 is connected to and communicates with the air compressor 5 to supply air to a transmission shift cylinder of the vehicle. The purpose of adding this gas reservoir 71 for shifting is to supply air from the air outlet of the air compressor 5 for assistance, so that the gas for shifting of the automobile is independent, and the problem that the air pressure is insufficient due to misoperation of an operator after parking and the automobile cannot be ignited by engaging a neutral gear is prevented.
While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (9)
1. A braking system for a vehicle, comprising:
the reversing unit is provided with a first through hole, a second through hole and a third through hole which can be communicated and used for switching the direction of the air flow; wherein the third port is selectively in communication with the first port or the second port;
the parking air cylinder is communicated with the third port and used for supplying air to the third port;
the upper air storage cylinder is communicated with the first port and used for supplying air to an upper actuating mechanism of the vehicle;
and the parking hand valve is communicated with the second port and is used for parking braking.
2. The braking system of claim 1, wherein:
the upper air storage cylinder is provided with a plurality of upper air storage cylinders which are communicated in series.
3. The braking system of claim 1, wherein:
the brake system further comprises an air compressor and an air supply pipe;
the inlet of the air supply pipe is communicated with the air outlet of the air compressor, and the outlet of the air supply pipe is communicated with the parking air storage cylinder and the third through hole respectively.
4. The braking system of claim 3, wherein:
the brake system also comprises an air storage cylinder for gear shifting;
the gear shifting air storage cylinder is communicated with an air outlet of the air compressor through a pipeline so as to supply air to a gear shifting air cylinder of a transmission of a vehicle.
5. The braking system of claim 4, wherein:
the brake system further comprises a multi-circuit protection valve;
and the air inlet of the multi-loop protection valve is communicated with the air outlet of the air compressor, and the air outlet of the multi-loop protection valve is correspondingly communicated with the parking air storage cylinder and the gear shifting air storage cylinder respectively.
6. The braking system of claim 5, wherein:
the brake system also comprises a front axle air cylinder and a rear axle air cylinder;
the multi-loop protection valve is a four-loop protection valve; and the gas outlet of the multi-loop protection valve is also correspondingly communicated with the front axle gas cylinder and the rear axle gas cylinder respectively.
7. The braking system of claim 5, wherein:
the brake system further includes a dryer;
the dryer is arranged between the air inlet of the multi-loop protection valve and the air outlet of the air compressor.
8. The braking system of claim 1, wherein:
the reversing unit is a rotary reversing valve.
9. The braking system of claim 1, wherein:
the brake system further comprises a differential relay valve;
the outlet of the parking air cylinder is connected with the air inlet of the differential relay valve; and the outlet of the parking hand valve is connected with the control port of the differential relay valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023229283.7U CN213973954U (en) | 2020-12-28 | 2020-12-28 | Brake system for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023229283.7U CN213973954U (en) | 2020-12-28 | 2020-12-28 | Brake system for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213973954U true CN213973954U (en) | 2021-08-17 |
Family
ID=77248720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023229283.7U Active CN213973954U (en) | 2020-12-28 | 2020-12-28 | Brake system for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213973954U (en) |
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2020
- 2020-12-28 CN CN202023229283.7U patent/CN213973954U/en active Active
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