CN216611181U

CN216611181U - Pneumatic brake system of commercial vehicle and commercial vehicle

Info

Publication number: CN216611181U
Application number: CN202122171641.1U
Authority: CN
Inventors: 李永鹏
Original assignee: Shanghai Shenlong Bus Co Ltd; Beijing Yuanda Xinda Technology Co Ltd
Current assignee: Shanghai Shenlong Bus Co Ltd; Beijing Yuanda Xinda Technology Co Ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-05-27
Anticipated expiration: 2031-09-08

Abstract

The utility model relates to a pneumatic braking system and commercial car of commercial car, pneumatic braking system includes braking general way and a plurality of braking branch road, it has compressor, condenser, desicator and gas distribution valve, a plurality of to establish ties on the braking general way braking branch road connects in parallel the gas distribution valve, the desicator with set up the alcohol jar between the gas distribution valve, the alcohol jar is including the jar body (1) that is used for holding alcohol, jar body (1) is seted up and is used for the intercommunication the inlet port (11) of desicator and is used for the intercommunication the venthole (12) of gas distribution valve. The purpose of this disclosure is to provide a pneumatic brake system, can solve the frozen problem of pneumatic brake system pipeline.

Description

Pneumatic brake system of commercial vehicle and commercial vehicle

Technical Field

The disclosure relates to the field of automobile processing equipment, in particular to a pneumatic braking system of a commercial vehicle and the commercial vehicle.

Background

The pneumatic braking system of the commercial vehicle is used in a cold air temperature environment, particularly a bus, after the vehicle is parked all night, when the vehicle is started the next day, pipelines in the air compressor are blocked by ice blocks, and the air can be inflated after the ice in the pipelines in the air compressor is frozen and melted by waiting for about half an hour.

For the frozen problem of commercial car air brake system pipeline in winter in the trade at present, common improvement scheme is including: adding an electrically heated condenser, optimizing condenser and dryer placement, adding coils before the dryer, etc. Through the improvement scheme, residual moisture in the braking system is greatly reduced, but a small amount of moisture still remains in the pipeline, the valve body and the air storage cylinder, a certain degree of icing phenomenon still occurs in winter, and the ice block still possibly blocks the pipeline of the air braking system.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pneumatic braking system and commercial car of commercial car, can solve the frozen problem of pneumatic braking system pipeline.

In order to achieve the above object, according to an aspect of the present disclosure, a pneumatic braking system for a commercial vehicle is provided, where a compressor, a condenser, a dryer, and a gas distribution valve are connected in series to a braking bus, a plurality of braking branches are connected in parallel to the gas distribution valve, an alcohol tank is disposed between the dryer and the gas distribution valve, the alcohol tank includes a tank body for containing alcohol, and the tank body is provided with an air inlet hole for communicating the dryer and an air outlet hole for communicating the gas distribution valve.

Optionally, a filling hole for filling alcohol, a water level hole for detecting an alcohol filling liquid level, and an exhaust hole for exhausting compressed air in the tank body are formed in the side wall of the tank body, and a drain hole for exhausting water in the tank body is further formed in the bottom wall of the tank body.

Optionally, the water level hole and the filling hole are located on the same side of the tank body, the water level hole is located below the filling hole, and the water level hole penetrates through the tank body along the horizontal direction.

Optionally, the water level hole has a smaller diameter than the filling hole.

Optionally, the alcohol tank further comprises a first screw plug connected to the outer wall of the tank body and used for sealing the water level hole and the filling hole, and the first screw plug is configured with a chamfer convenient for a wrench to rotate;

the alcohol tank further comprises a second plug screw connected to the outer wall of the tank body and used for sealing the drain hole and the exhaust hole, a containing cavity communicated with the tank body is formed in the second plug screw, a communicating hole used for communicating the containing cavity with the outside of the tank body is further formed in the second plug screw, a sealing element used for sealing the communicating hole is further connected to the second plug screw, and an elastic element used for limiting the sealing element to move outwards in the direction away from the containing cavity is sleeved on the portion, extending into the containing cavity, of the sealing element.

Optionally, a first threaded sleeve communicated with the filling hole is formed on the outer wall of the tank body, the first threaded sleeve extends out of the outer wall of the tank body, and the first plug screw is connected with the first threaded sleeve in a matching manner;

the outer wall of the tank body is also provided with a second threaded sleeve communicated with the exhaust hole, the second threaded sleeve extends out of the outer wall of the tank body, and the second threaded plug is connected with the second threaded sleeve in a matched mode.

Optionally, the part of the sealing element far away from the accommodating cavity is configured with a hand-pulling ring convenient for being grabbed by a human hand.

Optionally, the outer wall of the tank body is also constructed with an insulating layer.

Optionally, the outer wall of the tank body is configured with a connecting piece for connecting a vehicle body of a commercial vehicle and a mounting bracket in fit connection with the connecting piece.

According to a second aspect of the present disclosure, a commercial vehicle is provided, comprising a pneumatic brake system as described above.

According to the technical scheme, air in the air pressure braking system forms compressed air through the air compressor, the compressed air condenses gaseous water into liquid through the condenser, liquid water and part of engine oil and the like are filtered by the dryer, the filtered compressed air enters the alcohol tank through the air inlet and is mixed with alcohol volatilized from the alcohol tank, and the mixed air is discharged out of the alcohol tank through the exhaust hole, so that the whole air pressure braking system is filled with the mixed air. Wherein, contain alcohol in the gas of mixing, when alcohol mixes with residual moisture in the air brake system again, can improve the freezing point of post mixing moisture greatly to solve the problem that the pipeline freezes in the air brake system and leads to blockking up the pipeline.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic view of a portion of the operation of a pneumatic brake system of a commercial vehicle according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram illustrating an overall structure of an alcohol tank of a pneumatic brake system of a commercial vehicle according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a tank body of an alcohol tank of a pneumatic braking system of a commercial vehicle according to an embodiment of the disclosure;

fig. 4 is an enlarged view at a in fig. 2.

Description of the reference numerals

1-tank body, 11-air inlet hole, 12-air outlet hole, 13-filling hole, 14-water level hole, 15-air outlet hole, 16-water outlet hole, 17-first screw sleeve, 18-first screw plug, 19-second screw plug, 191-accommodating cavity, 192-sealing element, 193-elastic element, 194-hand pull ring, 2-connecting element and 3-mounting support.

Detailed Description

The following detailed description of the embodiments of the disclosure refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, the use of the directional terms such as "upper and lower" generally means "upper and lower" in the direction of gravity when the respective components are in use, "inner and outer" with respect to the profile of the corresponding component itself. Furthermore, the terms "first," "second," and the like, as used herein are intended to distinguish one element from another, and are not necessarily sequential or significant. Furthermore, in the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements, unless otherwise explained. The foregoing definitions are provided to illustrate and describe the present disclosure only and should not be construed to limit the present disclosure.

In order to achieve the above object, as shown in fig. 1 to 3, a pneumatic brake system of a commercial vehicle is provided, wherein a compressor, a condenser, a dryer and a gas distribution valve are connected in series to a brake main, a plurality of brake branches are connected in parallel to the gas distribution valve, an alcohol tank is arranged between the dryer and the gas distribution valve, the alcohol tank comprises a tank body 1 for containing alcohol, and the tank body 1 is provided with an air inlet hole 11 for communicating the dryer and an air outlet hole 12 for communicating the gas distribution valve.

As shown in fig. 3, as an alternative embodiment, a filling hole 13 for filling alcohol, a water level hole 14 for detecting the filling level of alcohol, and an exhaust hole 15 for exhausting compressed air in the tank 1 are opened on the side wall of the tank 1, and a drain hole 16 for exhausting water in the tank 1 is also opened on the bottom wall of the tank 1. An operator firstly exhausts compressed air in the tank body 1 through the exhaust hole 15 to balance the internal pressure and the external pressure of the tank body 1, then exhausts residual water in the tank body 1 through the exhaust hole 16, then seals the exhaust hole 16 and the exhaust hole 15, finally injects alcohol into the tank body 1 through the injection hole 13, and controls the injection amount of the alcohol in the tank body 1 by matching with the water level hole 14.

In some other embodiments, the outer wall of the tank body 1 may be provided with a window for observing the liquid level inside the tank body 1, the window is provided with tempered glass, and the tempered glass is marked with volume scales, so that an operator can conveniently and intuitively know the residual volume of alcohol in the tank body 1.

As an alternative embodiment, the water level hole 14 and the filling hole 13 are positioned on the same side of the tank body 1, the water level hole 14 is positioned below the filling hole 13, and the water level hole 14 penetrates through the tank body 1 along the horizontal direction. The water level hole 14 and the filling hole 13 are positioned on the same side of the tank body 1, so that an operator can conveniently observe the water level hole 14 when filling alcohol, and the water level hole 14 horizontally penetrates through the tank body 1, so that the water level hole 14 can accurately reflect the liquid level of the alcohol in the tank body 1.

As an alternative embodiment, the water level hole 14 has a smaller diameter than the filling hole 13. The water level hole 14 is only used for reflecting the condition of the alcohol liquid level in the tank body 1, the aperture of the water level hole 14 is small, so that a large amount of alcohol can be prevented from flowing out of the water level hole 14 in the filling process, and the filling hole 13 is large, so that the alcohol can be quickly filled.

As an alternative embodiment, the alcohol tank further comprises a first screw plug 18 connected to the outer wall of the tank body 1 and used for sealing the water level hole 14 and the filling hole 13, the first screw plug 18 is configured with a chamfer for facilitating the rotation of a wrench, the water level hole 14 and the filling hole 13 are connected through the first screw plug 18 in a threaded manner to close the tank body 1, the first screw plug 18 can be tightly connected to the tank body 1 to overcome the reaction force of the compressed gas in the tank body 1 on the first screw plug 18, wherein the chamfer configured on the first screw plug 18 facilitates the labor-saving opening of the first screw plug by an operator through a tool such as a wrench.

As shown in fig. 4, the alcohol tank further includes a second plug screw 19 connected to the outer wall of the tank body 1 and used for sealing the drain hole 16 and the vent hole 15, the second plug screw 19 is formed with an accommodating cavity 191 communicated with the tank body 1, the second plug screw 19 is further provided with a communication hole used for communicating the accommodating cavity 191 with the outside of the tank body 1, the second plug screw 19 is further connected with a sealing member 192 used for sealing the communication hole, and a part of the sealing member 192 extending into the accommodating cavity 191 is sleeved with an elastic member 193 used for limiting the sealing member 192 to move outwards in a direction away from the accommodating cavity 191. Wherein the sealing member 192 is a rod-shaped structure, the elastic member 193 is a spring, the sealing member 192 constructed by the second screw plug 19 seals the communication hole through the limitation of the spring, so that a worker can open the communication hole by pulling the sealing member 192, and further the compressed air or residual water in the accommodating cavity 191 is discharged, when the worker releases the sealing member 192, the sealing member 192 returns to an initial state under the elastic action of the spring to close the communication hole, because of the existence of the compressed air in the tank body 1, the rotation of the second screw plug 19 is dangerous, and the ejection of the second screw plug 19 is easily caused, and the scheme of the disclosure can avoid the occurrence of the situation.

As an alternative embodiment, the outer wall of the tank body 1 is provided with a first screw sleeve 17 communicated with the filling hole 13, the first screw sleeve 17 extends out of the outer wall of the tank body 1, a first screw plug 18 is in fit connection with the first screw sleeve 17, the outer wall of the tank body 1 is also provided with a second screw sleeve communicated with the exhaust hole 15, the second screw sleeve extends out of the outer wall of the tank body 1, and a second screw plug 19 is in fit connection with the second screw sleeve. The arrangement of the first screw sleeve 17 and the second screw sleeve can prevent the first screw plug 18 and the second screw plug 19 from directly contacting and connecting with the outer wall of the tank body 1, so that the situation that the tank body 1 is damaged due to repeated disassembly of the first screw plug 18 and the second screw plug 19 can be reduced.

As an alternative embodiment, the portion of the seal 192 remote from the receiving cavity 191 is configured with a pull ring 194 for easy grasping by a human hand. The pull ring 194 may provide a landing position for the operator for easy operation.

As an alternative embodiment, the outer wall of the tank 1 is also constructed with an insulating layer. In the use process of the air brake system, the temperature in the tank body 1 is continuously increased, the temperature outside the tank body 1 is lower, the temperature difference formed by the two temperatures easily causes the tank body 1 to be damaged, and the damage of the temperature difference to the tank body 1 can be effectively avoided through the heat preservation layer.

As an alternative embodiment, the outer wall of the tank 1 is configured with a connecting piece 2 for connecting to a body of a commercial vehicle and a mounting bracket 3 which is connected to the connecting piece 2 in a mating manner. The outer wall of the tank body 1 is provided with a connecting piece 2 for connecting the vehicle body of the commercial vehicle and a mounting bracket 3 which is matched and connected with the connecting piece 2. The mounting bracket 3 is used for connecting with the inner parts of the commercial vehicle, so that the mounting bracket 3 can be selected from various structures with different shapes and sizes according to different connecting positions so as to be adaptively connected with the commercial vehicle. Wherein, the mounting bracket 3 is connected with the connecting piece 2 through a bolt.

The present disclosure also provides a commercial vehicle comprising a pneumatic braking system as described above.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The pneumatic braking system of the commercial vehicle comprises a braking main road and a plurality of braking branches, wherein a compressor, a condenser, a dryer and a gas distribution valve are connected in series on the braking main road, the braking branches are connected in parallel on the gas distribution valve, the pneumatic braking system is characterized in that an alcohol tank is arranged between the dryer and the gas distribution valve, the alcohol tank comprises a tank body (1) for containing alcohol, the tank body (1) is provided with a gas inlet (11) for communicating the dryer and a gas outlet (12) for communicating the gas distribution valve, the side wall of the tank body (1) is provided with a filling hole (13) for filling alcohol, a water level hole (14) for detecting the filling liquid level of the alcohol and a vent hole (15) for discharging compressed air in the tank body (1), the bottom wall of the tank body (1) is also provided with a drain hole (16) for discharging water in the tank body (1), the alcohol tank also comprises a first screw plug (18) which is connected to the outer wall of the tank body (1) and is used for sealing the water level hole (14) and the filling hole (13), and the first screw plug (18) is configured with a chamfer angle convenient for a wrench to rotate; the alcohol tank further comprises a second plug screw (19) connected to the outer wall of the tank body (1) and used for sealing the drain hole (16) and the exhaust hole (15), a containing cavity (191) communicated with the tank body (1) is formed in the second plug screw (19), a communicating hole used for communicating the containing cavity (191) with the outside of the tank body (1) is further formed in the second plug screw (19), a sealing piece (192) used for sealing the communicating hole is further connected to the second plug screw (19), and an elastic piece (193) used for limiting the sealing piece (192) to move outwards towards the direction away from the containing cavity (191) is sleeved on the part, extending into the containing cavity (191), of the sealing piece (192).

2. Pneumatic braking system for commercial vehicles according to claim 1, characterized in that the water level hole (14) is located on the same side of the tank (1) as the filling hole (13), and the water level hole (14) is located below the filling hole (13), the water level hole (14) penetrating the tank (1) in a horizontal direction.

3. Pneumatic braking system for commercial vehicles according to claim 2, characterized in that the water level hole (14) has a smaller diameter than the filling hole (13).

4. The pneumatic braking system of a commercial vehicle according to claim 1, characterized in that the outer wall of the tank (1) is configured with a first threaded sleeve (17) communicated with the filling hole (13), the first threaded sleeve (17) extends out of the outer wall of the tank (1), and the first threaded plug (18) is in fit connection with the first threaded sleeve (17);

the outer wall of the tank body (1) is further provided with a second threaded sleeve communicated with the exhaust hole (15), the second threaded sleeve extends out of the outer wall of the tank body (1), and the second threaded plug (19) is connected with the second threaded sleeve in a matched mode.

5. A pneumatic brake system for a commercial vehicle according to claim 4, wherein the portion of the seal (192) remote from the receiving cavity (191) is configured with a pull ring (194) for easy gripping by a human hand.

6. Pneumatic braking system for commercial vehicles according to claim 1, characterized in that the outer wall of the tank (1) is also constructed with an insulating layer.

7. Pneumatic braking system for commercial vehicles according to claim 1, characterized in that the outer wall of the tank (1) is configured with a connection piece (2) for connecting to the body of a commercial vehicle and a mounting bracket (3) which is in a fitting connection with the connection piece (2).

8. A commercial vehicle, characterized in that it comprises a pneumatic brake system according to any one of claims 1-7.