Vehicle brake test device

Abstract

The utility model discloses a vehicle brake test device, and belongs to the technical field of integrated brake devices, the vehicle brake test device is used for brake cylinder stroke and brake shoe stack adjuster gap adjustment of the integrated brake device, the vehicle brake test device comprises a pipeline, and an inflation valve, an exhaust valve and a pressure detection member arranged on the pipeline, two ends of the pipeline are respectively communicated with a brake cylinder and an air source; the inflation valve is arranged at the end of the pipeline and used for opening and closing a channel in the pipeline, the exhaust valve is arranged at a branch opening of the pipeline and used for opening and closing a channel branched from the pipeline, and the pressure detection piece is communicated with the interior of the pipeline; according to the invention, brake cylinder stroke and brake shoe stack adjuster gap adjustment can be carried out on the vehicle, an existing test mode is changed, the problem of inconvenient operation caused by limited operation space is solved, the vehicle does not need to enter the bottom, detection and adjustment of brake cylinder piston stroke and brake shoe stack adjuster gap can be simply and efficiently realized, the operation is convenient, the safety is higher, and the test efficiency is improved. Meanwhile, the working efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of integrated brake device testing, and in particular, relates to a vehicle brake testing device. Background Art

[0002] The integrated braking device for railway freight cars, hereinafter referred to as the integrated braking device, is composed of brake levers, brake cylinders, brake beams, brake adjusters, brake shoes and other components. The integrated braking device is widely used on railway freight cars at home and abroad for its compact structure, reliable performance and high transmission efficiency. The integrated braking device is installed on the bogie and is located at the bottom of the freight car after the vehicle is completed.

[0003] According to the existing technology, a single vehicle test must be carried out after the whole vehicle is unloaded. The single vehicle test refers to a test to measure the performance of the vehicle brake and the entire vehicle integrated braking device when it is stationary. The brake cylinder stroke and brake regulator clearance need to be adjusted in the single vehicle test. However, since the test is carried out in a supine position, manual operation is extremely inconvenient, and there are problems of low operating efficiency and high operating intensity. Utility Model Content

[0004] The present application aims to at least to some extent solve the technical problem of the inconvenience in adjusting the brake cylinder stroke and the brake adjuster clearance. To this end, the present application provides a vehicle brake test device, which can adjust the brake cylinder stroke and the brake adjuster clearance of the vehicle, changes the existing testing method, solves the problem of inconvenience in operation caused by limited working space, and can simply and efficiently realize the detection and adjustment of the brake cylinder piston stroke and the brake adjuster clearance without entering the bottom of the vehicle. The operation is convenient and safer, while improving working efficiency and reducing labor intensity.

[0005] An embodiment of the present application provides a vehicle brake test device, which is used to adjust the brake cylinder stroke and brake regulator clearance of an integrated brake device. The integrated brake device has a brake cylinder, which is installed at the bottom of the vehicle. The vehicle brake test device includes: a pipeline, and an inflation valve, an exhaust valve and a pressure detection component arranged on the pipeline. The two ends of the pipeline are connected to the brake cylinder and the air source respectively. The inflation valve is arranged at the end position of the pipeline, and the inflation valve is used to open and close the channel in the pipeline. The exhaust valve is arranged at the branch opening of the pipeline, and the exhaust valve is used to open and close the channel branched from the pipeline. The pressure detection component is connected to the inside of the pipeline.

[0006] In an optional embodiment, when the brake cylinder is inflated for braking, the switch of the exhaust valve is in a closed position and the switch of the inflation valve is in an open position; when the brake cylinder is exhausted for relief, the switch of the inflation valve is in a closed position and the switch of the exhaust valve is in an open position.

[0007] In an optional embodiment, the pipeline includes a hose and a straight pipe, the hose is connected to the straight pipe, the hose is used to connect to the brake cylinder, and the straight pipe is provided with an inflation valve, an exhaust valve and a pressure detection component.

[0008] In an optional embodiment, the pressure detection member is located between the inflation valve and the exhaust valve.

[0009] In an optional embodiment, an oil-water separator is further included, the inlet of the oil-water separator is used to communicate with the air source, and the outlet of the oil-water separator is connected to the inflation valve.

[0010] In an optional embodiment, the straight pipe includes: a first multi-way connector, a second multi-way connector and a connecting pipe, the first multi-way connector and the second multi-way connector respectively have at least three ports, two of the ports of the first multi-way connector are respectively connected to a hose and an exhaust valve, another port of the multi-way connector is connected to a port of the second multi-way connector, and the other two ports of the second multi-way connector are respectively connected to a pressure detection component and a connecting pipe, and the end of the connecting pipe is connected to the inflation valve.

[0011] In an optional embodiment, a test connector is further included, which is connected to one end of the hose, and the test connector is used to connect to the brake cylinder.

[0012] In an optional embodiment, it also includes multiple butt joints, whose two ends are respectively connected to the test joint and the hose, the hose and the port of the first multi-way joint, the port of the first multi-way joint and the exhaust valve, or the oil-water separator and the inflation valve.

[0013] In an optional embodiment, the butt joint includes a threaded joint and a quick-connect joint. The quick-connect joint is arranged between the hose and the test joint, and between the hose and the port of the first multi-way joint. The threaded joint is arranged between the port of the first multi-way joint and the exhaust valve, and between the oil-water separator and the inflation valve.

[0014] In an optional embodiment, a muffler is further included, connected to the exhaust valve.

[0015] It can be seen from the above technical solution that the beneficial effects of this application are:

[0016] The present application can directly connect to the brake cylinder of the integrated brake device through a hose, form a connecting passage through a multi-way pipe and a connecting pipe, directly connect to the air source, and provide air pressure to the brake cylinder through the air source. Since the brake cylinder is located at the bottom of the vehicle, the device can be set at a position outside the bottom of the vehicle through a pipeline. The test process can be directly controlled through the inflation valve and the exhaust valve, and the operator no longer has to work on his back, and is not restricted by space. Therefore, the present application can adjust the brake cylinder stroke and the brake regulator clearance of the vehicle, which changes the existing testing method and solves the problem of inconvenience caused by limited working space. There is no need to enter the bottom of the vehicle, and the brake cylinder piston stroke and the brake regulator clearance can be simply and efficiently detected and adjusted. The operation is convenient and safer, while improving working efficiency and reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other embodiments and drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of an embodiment of the vehicle brake test device of the utility model is shown;

[0019] Figure numerals: 100, vehicle brake test device; 110, pipeline; 111, hose; 112, first multi-way connector; 113, second multi-way connector; 114, connecting pipe; 120, exhaust valve; 121, muffler; 130, charging valve; 140, pressure detection component; 150, oil-water separator; 160, test connector; 170, butt connector; 171, threaded connector; 172, quick-connect connector. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0024] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0025] Please refer to Figure 1In a first aspect of the present application, a vehicle brake test device is provided, which is used to adjust the brake cylinder stroke and brake regulator clearance of an integrated brake device. The integrated brake device has a brake cylinder, which is installed at the bottom of the vehicle. The vehicle brake test device 100 includes: a pipeline 110, and an inflation valve 130, an exhaust valve 120 and a pressure detection component 140 arranged on the pipeline 110. The pipeline 110 is a conventional pipe fitting, such as a PVC pipe. The two ends of the pipeline 110 are respectively connected to the brake cylinder and the air source and communicate with each other. The pipeline 110 is used to provide inflation. One end of the pipeline 110 is connected to the equipment outlet of the air source. An inflation valve is connected to the end of the pipeline 110. 130, the other end of the pipeline 110 is directly connected to the port of the brake cylinder, and the above connection is a threaded connection or a conventional connection method; the inflation valve 130 is set at the end position of the pipeline 110, the inlet end of the inflation valve 130 is connected to the air source device through the pipeline 110, and the outlet end of the inflation valve 130 is threadedly connected to the pipeline 110, or a joint connection can be used. The opening and closing of the intake channel in the pipeline 110 is controlled by the inflation valve 130, and the exhaust valve 120 is set at the branch opening of the pipeline 110, and the above or other conventional pipe fittings are also used. The exhaust valve 120 can control the opening and closing of the channel at the branch outlet of the pipeline 110 on the pipeline 110. In order to detect the pressure, a pressure detection member 140 is set on the pipeline 110, and the pressure detection member 140 is connected to the inside of the pipeline 110. The pressure detection member 140 adopts an electronic pressure gauge, which is directly connected to the on-board computer display through wiring. The pressure detection member 140 is installed on the pipeline 110, and the pressure gauge is installed in a conventional manner. The pressure detection member 140 is used to detect and display the inflation pressure.

[0026] In the single vehicle test of the prior art, the brake cylinder stroke and the brake regulator clearance need to be adjusted when the vehicle brake is tested. First, the air inlet end of the single vehicle tester is connected to the air source, and then the output end is connected to the integrated brake device. The brake cylinder piston stroke and the brake regulator clearance must be adjusted using the single vehicle tester after the vehicle is completed. The brake cylinder piston stroke refers to the distance moved by the brake cylinder piston during braking, and the brake regulator clearance refers to the clearance between the brake block and the brake disc when the integrated brake device is in the released state. Long-term use of the vehicle will cause the piston stroke and the brake regulator clearance to change, so a test is required; before the brake cylinder piston stroke and the brake regulator clearance are tested, the brake system must be filled with air first, and the brake pipe is decompressed after the air filling pressure is stable, triggering the brake machine in the brake system to open the air filling passage to the brake cylinder. After the brake cylinder reaches the standard pressure, the brake cylinder piston stroke and the brake regulator clearance are tested and adjusted. The entire test and adjustment process is carried out after the indirect-action air filling brake, and each operation is performed separately, which is relatively cumbersome. In addition, during the test and adjustment process, the operator must enter the bottom of the truck to perform the upper face test and adjustment operation. Since the bogie with integrated brake device is compact, it is difficult to enter the working position from the bottom of the bogie. Due to the space limitation of the truck body and bogie, the inspection and adjustment operations are inconvenient. After the brake cylinder piston stroke and brake adjuster clearance are adjusted, the brake pipe must be decompressed again using a single vehicle tester to make the brake cylinder pressure reach the standard value, and the cylinder piston stroke and brake adjuster clearance are tested to see if they are qualified. There are multiple operations in this process, and the operation time is long, which makes the existing brake cylinder stroke and brake adjuster clearance adjustment operations extremely unchanged. In addition, there is a risk of personnel being injured by bumps when entering the bottom of the truck for operation.

[0027] The present application can directly connect the brake cylinder of the integrated brake device through the pipeline 110, form a communication passage through the first multi-way connector 112 and the pipeline 110, directly communicate with the air source, and provide air pressure for the brake cylinder through the air source. Since the brake cylinder is located at the bottom of the vehicle, the device can be set at a position outside the bottom of the vehicle through the pipeline 110. Through the inflation valve 130 and the exhaust valve 120, the test process can be directly controlled, and the operator no longer needs to work on his back, and is not limited by the space formed by the bogie and the truck body. The adjustment of the brake cylinder piston stroke and the brake regulator clearance is convenient to operate during the single vehicle test; thus, the present application can adjust the brake cylinder stroke and the brake regulator clearance of the vehicle, changing the existing test method, solving the problem of inconvenience caused by limited working space, without entering the bottom of the vehicle, and can simply and efficiently realize the detection and adjustment of the brake cylinder piston stroke and the brake regulator clearance, which is convenient to operate and has higher safety, while improving the working efficiency and reducing the labor intensity. In addition, the pressure detection member 140 on the pipeline 110 keeps a distance from the inflation valve 130, which can avoid interference between the switch of the inflation valve 130 during the opening and closing process. The present application has a simple structure and is easy to operate, and can accurately control the wind pressure of the brake cylinder. Compared with a single-vehicle tester, the device has a lower cost and also saves single-vehicle test costs.

[0028] In an optional embodiment, when the brake cylinder is inflated for braking, the switch of the exhaust valve 120 is in a closed position and the switch of the inflation valve 130 is in an open position; when the brake cylinder is exhausted for relief, the switch of the inflation valve 130 is in a closed position and the switch of the exhaust valve 120 is in an open position. When the exhaust valve 120 is closed and the charging valve 130 is opened, full braking is performed. When the charging valve 130 is closed, the exhaust valve 120 is opened to relieve exhaust. The brake cylinder is directly braked fully and the exhaust is relieved to achieve detection and adjustment of the brake cylinder piston stroke and the brake regulator clearance. The above setting means that the switch of the exhaust valve 120 is in the open position and the switch of the charging valve 130 is in the closed position; or the switch of the exhaust valve 120 is in the closed position and the switch of the charging valve 130 is in the open position. In this way, the brake cylinder can be charged with air to produce braking by opening the charging valve 130 and closing the exhaust valve 120. By closing the charging valve 130 and opening the exhaust valve 120, the brake cylinder exhaust is relieved and the brake regulator is in a stable state after the clearance is adjusted. By closing the exhaust valve 120 again and opening the charging valve 130, the brake cylinder can be charged with air to the standard pressure value, and the brake cylinder piston stroke and the brake regulator clearance are tested, thereby obtaining data for adjusting the braking stroke and the braking clearance, and achieving adjustment of the braking stroke and the braking clearance during the bogie production stage.

[0029] In an optional embodiment, the pipeline 110 includes a hose 111 and a straight pipe, the hose 111 is connected to the straight pipe, the hose 111 is used to connect to the brake cylinder, the straight pipe is provided with an inflation valve 130, an exhaust valve 120 and a pressure detection device 140, one end of the hose 111 is used to connect to the port of the brake cylinder, the end of the hose 111 and the end of the straight pipe are fixed by a clamp, and the interior of the hose 111 is connected to the interior of the straight pipe, the inflation valve 130 is connected to the other end of the straight pipe, the straight pipe is provided with a branch outlet, the exhaust valve 120 is provided at the branch outlet, the straight pipe is also provided with another opening, and the pressure detection device 140 is provided at the opening. In addition to the above-mentioned setting method, other methods can also be used. The hose 111 is used to facilitate adjustment of the connection position to achieve connection with the port of the brake cylinder. The hose 111 is made of nylon hose 111, and other materials can also be used. One end of the hose 111 is used to connect to the brake cylinder, and one end of the hose 111 is connected to the air inlet port of the brake cylinder. The joint is sealed and wrapped and fixed with a clamp. The hose 111 can also be connected to the air inlet port of the brake cylinder with a joint.

[0030] In an optional embodiment, the straight pipe includes: a first multi-way joint 112, a second multi-way joint 113 and a connecting pipe 114, the first multi-way joint 112 and the second multi-way joint 113 each have at least three ports, the first multi-way joint 112 and the second joint are respectively three-way, and other multi-way pipe joints can also be used. The other end of the above-mentioned hose 111 is connected to one of the ports of the first multi-way joint 112, and the other two ports of the first multi-way joint 112 are respectively connected to the exhaust valve 120 and the connecting pipe 114, and the other port of the first multi-way joint 112 and a port of the second multi-way joint 113 are connected by threaded connection, and can also be connected by clamps or joints. The first multi-way joint 112, the second multi-way joint 113 and the connecting pipe 114 are used as the air intake passage, and the other two ports of the second multi-way joint 113 are respectively connected to the pressure detection component 140 and the connecting pipe 114, and the end of the connecting pipe 114 is connected to the inflation valve 130. The above-mentioned and the following connections also use the connection method of the conventional pipeline 110.

[0031] In an optional embodiment, the vehicle brake test device 100 further includes a pressure detection member 140 for detecting the pressure in the pipeline 110, such as the other two ports of the second multi-way connector 113 are respectively connected to the pressure gauge and the first multi-way connector 112, so that the pressure detection member 140 is arranged on the pipeline 110, and the pressure inside the channel connected to the connecting pipe 114 is detected by the pressure detection member 140. In an optional embodiment, the vehicle brake test device 100 further includes a muffler 121, and the muffler 121 adopts a device commonly used in the structure of the pipeline 110, such as the SSPDK model valve muffler 121 produced by Tangsheng Automatic Valve Company, and the port of the muffler 121 is connected to the outlet end of the exhaust valve 120, and the exhaust noise is reduced by the muffler 121 to prevent the exhaust from causing harm to personnel.

[0032] In an optional embodiment, an oil-water separator 150 is also included, and the inlet of the oil-water separator 150 is used to communicate with the air source, such as the inlet of the oil-water separator 150 is provided with a quick-plug connector 172, which is convenient for adjusting the device and connecting the air source port, and the outlet of the oil-water separator 150 is connected to the inflation valve 130, such as being threaded and fixed to the inlet end of the inflation valve 130; the oil-water separator 150 is used for wind pressure regulation and filtering moisture and impurities in the air source. The oil-water separator 150 is a component that converts the elastic energy of compressed air into kinetic energy. The oil-water separator 150 is also called an air source processor in the industry, such as the two-piece AC series of air source processors produced by Smart. The air source processor is composed of an air filter, a pressure reducing valve and an oil mist collector.

[0033] In an optional embodiment, the vehicle brake test device 100 also includes a test connector 160, which is connected to one end of the hose 111. The test connector 160 is used to connect to the brake cylinder. The test connector 160 can adopt a flange or other connector that is easy to connect. When a flange is used, such as a port on the hose 111 connected to the brake cylinder connected to the flange, the flange and the port are fixed by a clamp, and the hose 111 is then fixed to the air intake port of the brake cylinder by bolts through the flange. If the air intake port of the brake cylinder also adopts a flange structure, the flange is connected by bolts. In an optional embodiment, the vehicle brake test device 100 also includes a plurality of butt joints 170, the two ends of which are respectively connected to the test joint 160 and the hose 111, the hose 111 and the port of the first multi-way joint 112, the port of the first multi-way joint 112 and the exhaust valve 120, or the outlet of the oil-water separator 150 and the inflation valve 130, that is, the test joint 160 and one end of the hose 111 are also connected by a butt joint 170, the other end of the hose 111 and the port of the first multi-way joint 112 are also connected by a butt joint 170, and the other port of the first multi-way joint 112 and the exhaust valve 120 are also connected by a butt joint 170. The butt joint 170 is an existing pipe joint structure, and the butt joint 170 facilitates the connection and matching between different pipes.

[0034] In an optional embodiment, the butt joint 170 includes a threaded joint 171 and a quick-connect joint 172, wherein the quick-connect joint 172 is disposed at one end of the hose 111 and between the other end of the hose 111 and a port of the first multi-way joint 112, that is, one end of the hose 111 is connected to the quick-connect joint 172 and is connected to the outside through the quick-connect joint 172, such as to a brake cylinder or a flange, and the other end of the hose 111 is also connected to another quick-connect joint 172 and is connected to the first multi-way joint 111 through the quick-connect joint 172. 2, the threaded joint 171 is provided between the port of the first multi-way joint 112 and the exhaust valve 120, and between the outlet of the oil-water separator 150 and the charging valve 130, that is, one port of the first multi-way joint 112 is connected to the threaded joint 171 and is connected to the inlet of the exhaust valve 120 through the threaded joint 171, the outlet of the oil-water separator 150 is connected to the threaded joint 171 and is connected to one port of the charging valve 130 through the threaded joint 171, and the other port of the charging valve 130 is connected to the pipeline 110, such as a threaded connection.

[0035] In an optional embodiment, the vehicle brake test device 100 also includes a sealing ring, and a sealing ring is arranged at each connection, such as the test joint 160, the docking joint 170, both ends of the hose 111, the first multi-way joint 112 and the exhaust valve 120, the first multi-way joint 112 and the second multi-way joint 113, the connecting pipe 114 and the inflation valve 130, etc., to ensure the sealing of the entire device and the external connection of the device.

[0036] The method of using the embodiment of the present application includes:

[0037] Step 1: Check the air source pressure and confirm that the pressure is not less than 500Kpa. Use nylon hose 111 to connect one end of the quick-connect connector 172 at the oil-water separator 150 to the air source, check the air tightness of the device, the opening and closing functions of the inflation valve 130 and the exhaust valve 120, and complete the functional test. Set the output pressure of the device to be consistent with the standard pressure required for the adjustment of the brake cylinder piston stroke. Taking the foreign UBX type integrated brake device as an example, by adjusting the pressure regulating valve on the oil-water separator 150, the output pressure of the device is set to 345kPa. Taking the domestic BAB type integrated brake device as an example, the output pressure of the device is set to 140Kpa.

[0038] Step 2: After the bogie is completed and before the vehicle is put into operation, use bolts to connect and tighten the flange of the device to the brake cylinder of the integrated brake device on the bogie, and seal the flange and the brake cylinder with a sealing ring; close the exhaust valve 120 of the device, open the charging valve 130, and fill the brake cylinder with air to produce braking; close the charging valve 130, open the exhaust valve 120 to relieve the exhaust of the brake cylinder; repeat the braking and relieving of the brake cylinder to make the brake regulator in a stable state after adjusting the gap.

[0039] Step 3: Close the exhaust valve 120 of the device again, open the air charging valve 130, and charge the brake cylinder to the standard pressure value (the standard pressure value of the UBX type integrated brake device is 345kPa, and the standard pressure value of the BAB type integrated brake device is 140Kpa). When the UBX type integrated brake device has its brake cylinder charged to a constant pressure, check and record the brake cylinder piston stroke and brake regulator clearance. When the BAB type integrated brake device has its brake cylinder charged to a constant pressure, check and record the brake cylinder piston stroke; check and record the brake regulator clearance when the brake cylinder is fully exhausted and relieved.

[0040] Step 4: Compare the brake cylinder piston stroke and the brake adjuster clearance standard range. If they do not match, close the device's inflation valve 130, open the exhaust valve 120 to relieve the brake cylinder, and adjust the brake cylinder piston stroke to the standard range by turning the control rod nut, and adjust the push rod assembly length to make the brake adjuster clearance reach the standard range.

[0041] Step 5: Check and confirm the brake cylinder piston stroke and brake adjuster clearance according to step 3, and fill in the inspection record.

[0042] The present invention directly charges the brake cylinder with standard air pressure to make the brake cylinder brake, and directly discharges the brake cylinder air pressure to relieve the brake cylinder. In this process, the brake cylinder piston stroke and the brake regulator clearance are detected and adjusted. Compared with the brake system, the brake cylinder has a small volume, and the adjustment device is used to directly charge air for braking and exhaust air for relief, so that the detection and adjustment operation efficiency is high. The oil-water separator 150 pressure regulating valve using the adjustment device can accurately control the brake cylinder pressure, and the pressure gauge is intuitively displayed to reduce the detection error.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", "optional example" or "optional implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0044] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0045] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A vehicle brake test device, characterized in that: The invention is used for adjusting the brake cylinder stroke and brake regulator clearance of an integrated brake device. The integrated brake device is installed on a bogie and is located at the bottom of the vehicle after the vehicle is completed. The integrated brake device has a brake cylinder and a brake regulator. The vehicle brake test device comprises: a pipeline (110), and an air charging valve (130), an air exhaust valve (120) and a pressure detection component (140) arranged on the pipeline (110). The two ends of the pipeline (110) are respectively connected to the brake cylinder and an air source. The air charging valve (130) is arranged at the end position of the pipeline (110). The air charging valve (130) is used to open and close the channel in the pipeline (110). The air exhaust valve (120) is arranged at the branch opening of the pipeline (110). The air exhaust valve (120) is used to open and close the channel branched from the pipeline (110). The pressure detection component (140) is connected to the inside of the pipeline (110).

2. The vehicle brake test device according to claim 1, characterized in that: When the brake cylinder is inflated with air for braking, the switch of the exhaust valve (120) is in a closed position, and the switch of the inflation valve (130) is in an open position; when the brake cylinder is exhausted for relief, the switch of the inflation valve (130) is in a closed position, and the switch of the exhaust valve (120) is in an open position.

3. The vehicle brake test device according to claim 2, characterized in that: The pipeline (110) comprises a hose (111) and a straight pipe, the hose (111) is connected to the straight pipe, the hose (111) is used to connect to the brake cylinder, and the straight pipe is provided with the inflation valve (130), the exhaust valve (120) and the pressure detection component (140).

4. The vehicle brake test device according to claim 3, characterized in that: The pressure detection component (140) is located between the inflation valve (130) and the exhaust valve (120).

5. The vehicle brake test device according to claim 3 or 4, characterized in that: It also includes an oil-water separator (150), wherein the inlet of the oil-water separator (150) is used to communicate with the gas source, and the outlet of the oil-water separator (150) is connected to the inflation valve (130).

6. The vehicle brake test device according to claim 5, characterized in that: The straight pipe comprises: a first multi-way connector (112), a second multi-way connector (113) and a connecting pipe (114); the first multi-way connector (112) and the second multi-way connector (113) respectively have at least three ports; two ports of the first multi-way connector (112) are respectively connected to the hose (111) and the exhaust valve (120); another port of the multi-way connector is connected to a port of the second multi-way connector (113); the other two ports of the second multi-way connector (113) are respectively connected to the pressure detection component (140) and the connecting pipe (114); and the end of the connecting pipe (114) is connected to the inflation valve (130).

7. The vehicle brake test device according to claim 6, characterized in that: It also includes a test joint (160) which is in communication with one end of the hose (111), and the test joint (160) is used to connect to the brake cylinder.

8. The vehicle brake test device according to claim 7, characterized in that: It also includes a plurality of butt joints (170), the two ends of which are respectively connected to the test joint (160) and the hose (111), the hose (111) and the port of the first multi-way joint (112), the port of the first multi-way joint (112) and the exhaust valve (120), or the oil-water separator (150) and the inflation valve (130).

9. The vehicle brake test device according to claim 8, characterized in that: The butt joint (170) comprises a threaded joint (171) and a quick-connect joint (172); the quick-connect joint (172) is arranged between the hose (111) and the test joint (160), and between the hose (111) and the port of the first multi-way joint (112); the threaded joint (171) is arranged between the port of the first multi-way joint (112) and the exhaust valve (120), and between the oil-water separator (150) and the inflation valve (130).

10. The vehicle brake test device according to claim 1, characterized in that: It also includes a muffler (121) connected to the exhaust valve (120).

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