Connector for brake line pressure, brake line pressure test assembly and vehicle

Abstract

The utility model relates to a connector for brake pipeline pressure, a brake pipeline pressure test assembly and a vehicle, the connector comprises a three-way joint, the three-way joint is provided with a first connecting pipe, a second connecting pipe and a third connecting pipe, the first connecting pipe, the second connecting pipe and the third connecting pipe are mutually communicated, and the first connecting pipe is used for being communicated with an air storage tank; the second connecting pipe is used for communicating with a testing device; the third connecting pipe is used for communicating with a brake chamber; the second connecting pipe and the third connecting pipe are symmetrically arranged about the central axis of the first connecting pipe. According to the technical scheme, the state that the air source flows to the testing device can be kept consistent with the state that the air source flows to the brake chamber as far as possible, so that the error of testing the response time of the vehicle brake system caused by different air source flow paths and flow speeds is reduced; the accuracy of testing the response time of the vehicle braking system is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular to a brake line pressure connector, a brake line pressure test assembly and a vehicle. Background Art

[0002] The response time of the vehicle braking system is one of the important indicators for evaluating the driving safety performance of the vehicle. The vehicle braking response time is affected by factors such as the brake type, the brake chamber pressure, the length and diameter of the pipeline, the structure and state of the brake control device, etc. In the prior art, a connector is generally used to implement the test of the vehicle braking response time. Specifically, the connector may include a first connecting pipe for connecting to the air source, a second connecting pipe for connecting to the test device, and a third connecting pipe for connecting to the brake chamber, wherein the first connecting pipe and the second connecting pipe are coaxial and arranged opposite to each other, that is, the direction of the brake air pressure air flow is directly facing the detection connector of the test device (the flow path is a straight line), and the flow path of the brake air pressure when flowing to the brake chamber needs to be turned (the flow path is non-linear), so this will cause the brake response time measured by the test device to be lower than the actual brake response time of the brake chamber. Utility Model Content

[0003] The purpose of the present disclosure is to provide a brake line pressure connector, a brake line pressure test assembly and a vehicle to solve the technical problems existing in the related art.

[0004] In order to achieve the above-mentioned object, a first aspect of the present disclosure provides a brake line pressure connector, the connector comprising a three-way joint, the three-way joint having a first connecting pipe, a second connecting pipe and a third connecting pipe, the first connecting pipe, the second connecting pipe and the third connecting pipe are connected to each other, the first connecting pipe is used to communicate with an air storage tank, the second connecting pipe is used to communicate with a test device, and the third connecting pipe is used to communicate with a brake air chamber;

[0005] The second connecting pipe and the third connecting pipe are symmetrically arranged about the central axis of the first connecting pipe.

[0006] Optionally, the central axis of the second connecting pipe and the central axis of the third connecting pipe are respectively perpendicular to the central axis of the first connecting pipe, and the central axis of the second connecting pipe is coaxially arranged with the central axis of the third connecting pipe.

[0007] Optionally, a first air outlet channel is formed inside the second connecting pipe, a second air outlet channel is formed inside the third connecting pipe, the length of the first air outlet channel is equal to the length of the second air outlet channel, and the inner diameter of the first air outlet channel is equal to the inner diameter of the second air outlet channel.

[0008] Optionally, the connector further comprises a switch valve, which is disposed in the second connecting pipe, and is used to open when the testing device is connected to the second connecting pipe, and to close when the testing device is disconnected from the second connecting pipe.

[0009] Optionally, the connector further comprises a connecting pipe, a first end of the connecting pipe is detachably connected to the first connecting pipe, and a second end of the connecting pipe is detachably connected to the gas storage tank.

[0010] A second aspect of the present disclosure provides a brake line pressure test assembly, comprising a test device and the brake line pressure connector as described above, wherein the test device is connected to the second connecting pipe.

[0011] Optionally, the testing device is detachably connected to the second connecting pipe.

[0012] Optionally, an internal thread is formed on the inner surface of the second connecting pipe, an external thread is formed on the outer surface of the detection joint of the testing device, and the detection joint is inserted into the second connecting pipe and threadedly connected with the second connecting pipe.

[0013] The third aspect of the present disclosure provides a vehicle, including a brake air chamber, an air tank for storing an air source, and a brake line pressure connector as described above, wherein the first connecting pipe of the three-way joint is connected to the air tank, and the third connecting pipe of the three-way joint is connected to the brake air chamber.

[0014] Optionally, the second connecting pipe is arranged away from the third connecting pipe.

[0015] Through the above technical scheme, in the process of testing the response time of the vehicle braking system, the air source can enter the three-way joint from the air tank through the first connecting pipe, and be divided into two paths, respectively entering the testing device through the second connecting pipe and entering the brake air chamber through the third connecting pipe, and since the second connecting pipe and the third connecting pipe are symmetrically arranged about the central axis of the first connecting pipe, that is to say, the flow state of the air source flowing from the air tank into the testing device is the same as the flow state of the air source flowing from the air tank into the brake air chamber (including flow velocity and flow path). In this way, the state of the air source flowing to the testing device and the state of the air source flowing to the brake air chamber can be kept consistent as much as possible, thereby reducing the error in the test of the response time of the vehicle braking system due to different air source flow paths and flow velocities, so as to improve the accuracy of the test of the response time of the vehicle braking system.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0018] Figure 1 is an exploded schematic diagram of a brake line pressure test assembly provided by an exemplary embodiment of the present disclosure;

[0019] Figure 2 is a front schematic diagram of a brake line pressure test assembly provided by an exemplary embodiment of the present disclosure;

[0020] Figure 3 The figure is a cross-sectional schematic diagram of a three-way joint of a brake line pressure connector provided in an exemplary embodiment of the present disclosure.

[0021] Description of Reference Numerals

[0022] 1-connector; 10-three-way connector; 11-first connecting pipe; 12-second connecting pipe; S1-length of the first air outlet channel; 120-first air outlet channel; S2-length of the second air outlet channel; 13-third connecting pipe; 130-second air outlet channel; 131-internal thread; 20-connecting pipe; 30-test device; 31-detection connector; 310-external thread; 100-brake line pressure test assembly. DETAILED DESCRIPTION

[0023] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0024] In the present disclosure, unless otherwise stated, the directional words used are only for the convenience of describing the present disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, and a specific orientation structure and operation. Therefore, they cannot be understood as limitations on the present disclosure. The terms "inside and outside" refer to the inside and outside of the corresponding structural contour.

[0025] In addition, it should be noted that the terms used, such as "first", "second", etc., are used to distinguish one element from another element, and do not have order or importance. In addition, in the description with reference to the drawings, the same number in different drawings represents the same element.

[0026] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "connected", and "installed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0027] refer to Figures 1 to 3 As shown, the first aspect of the present disclosure provides a connector 1 for brake line pressure, the connector 1 includes a three-way joint 10, the three-way joint 10 has a first connecting pipe 11, a second connecting pipe 12 and a third connecting pipe 13, the first connecting pipe 11, the second connecting pipe 12 and the third connecting pipe 13 are connected to each other, the first connecting pipe 11 is used to connect with the air tank, the second connecting pipe 12 is used to connect with the test device 30, and the third connecting pipe 13 is used to connect with the brake air chamber; the second connecting pipe 12 and the third connecting pipe 13 are symmetrically arranged about the central axis of the first connecting pipe 11.

[0028] Through the above technical scheme, in the process of testing the response time of the vehicle braking system, the air source can enter the three-way joint 10 from the air tank through the first connecting pipe 11, and be divided into two paths, respectively entering the testing device 30 through the second connecting pipe 12 and entering the brake air chamber through the third connecting pipe 13. Moreover, since the second connecting pipe 12 and the third connecting pipe 13 are symmetrically arranged about the central axis of the first connecting pipe 11, that is to say, the flow state of the air source flowing from the air tank into the testing device 30 is the same as the flow state of the air source flowing from the air tank into the brake air chamber (including flow velocity and flow path). In this way, the state of the air source flowing to the testing device 30 can be kept consistent with the state of the air source flowing to the brake air chamber as much as possible, thereby reducing the error in the test of the response time of the vehicle braking system caused by different air source flow paths and flow velocities, so as to improve the accuracy of the test of the response time of the vehicle braking system.

[0029] It should be noted that the second connecting pipe 12 and the third connecting pipe 13 mentioned above are symmetrically arranged about the central axis of the first connecting pipe 11. It can be understood that the length, size and other parameters of the second connecting pipe 12 and the third connecting pipe 13 are the same. In this way, it can be ensured that the flow rate, flow rate and pressure and other parameters of the gas source when flowing out of the second connecting pipe 12 and the third connecting pipe 13 respectively are the same, so as to improve the test accuracy of the test device 30.

[0030] The testing device 30 mentioned above may be a pipeline pressure sensor or a brake reaction time tester.

[0031] The present disclosure does not limit the specific connection angles between the second connecting pipe 12, the third connecting pipe 13 and the first connecting pipe 11. For example, Figures 1 to 3 As shown, in an exemplary embodiment provided by the present disclosure, the central axis of the second pipe 12 and the central axis of the third pipe 13 can be respectively perpendicular to the central axis of the first pipe 11, and the central axis of the second pipe 12 is coaxially arranged with the central axis of the third pipe 13. In other words, the second pipe 12 and the third pipe 13 are both arranged perpendicular to the first pipe 11, and because the central axis of the second pipe 12 is coaxial with the central axis of the third pipe 13, at this time, the second pipe 12 and the third pipe 13 are respectively located on both sides of the first pipe 11, which, on the one hand, facilitates the processing of the above-mentioned three-way joint 10, and can also make the second pipe 12, the third pipe 13 and the first pipe 11 have a higher structural strength.

[0032] Alternatively, in another exemplary embodiment provided in the present disclosure, the angle formed by the second connecting pipe 12, the third connecting pipe 13 and the first connecting pipe 11 can also be an obtuse angle. In this way, compared with the technical solution in which the angle formed by the second connecting pipe 12, the third connecting pipe 13 and the first connecting pipe 11 is a right angle, this embodiment can reduce the flow resistance of the gas source during the flow in the first connecting pipe 11 and the second connecting pipe 12, and the flow resistance of the gas source during the flow in the first connecting pipe 11 and the second connecting pipe 12, so as to reduce the pressure drop during the flow of the gas source and shorten the test time.

[0033] Furthermore, if Figures 1 to 3 As shown, a first air outlet channel 120 may be formed inside the second connecting pipe 12, and a second air outlet channel 130 may be formed inside the third connecting pipe 13. The length S1 of the first air outlet channel 120 is equal to the length S2 of the second air outlet channel 130, and the inner diameter of the first air outlet channel 120 is equal to the inner diameter of the second air outlet channel 130. Thus, the flow state of the air source after entering the first air outlet channel 120 and the second air outlet channel 130 from the first connecting pipe 11 is kept as consistent as possible, so as to reduce the test error of the response time of the vehicle braking system.

[0034] Optionally, the connector 1 further includes a switch valve (not shown), which is disposed in the second connecting pipe 12, and is used to open when the test device 30 is connected to the second connecting pipe 12, and is used to close when the test device 30 is disconnected from the second connecting pipe 12. In this way, when it is necessary to test the response time of the vehicle braking system, the test device 30 can be directly installed on the second connecting pipe 12. At this time, the switch valve is opened, and the air source can enter the test device 30 through the switch valve. When it is not necessary to test the response time of the vehicle braking system, the switch valve is in a closed state. At this time, the problem of air source leakage from the second connecting pipe 12 during vehicle braking can be avoided.

[0035] In another exemplary embodiment provided by the present disclosure, an airtight core may be further provided in the second connecting pipe 12 , which can also play a role in allowing the gas source to enter the testing device 30 from the second connecting pipe 12 and preventing gas source leakage.

[0036] Alternatively, if Figure 1 to Figure 2 As shown, the connector 1 may further include a connecting pipe 20, a first end of the connecting pipe 20 being detachably connected to the first connecting pipe 11, and a second end of the connecting pipe 20 being detachably connected to the gas tank. By providing the connecting pipe 20, quick disassembly between the three-way connector 10 and the gas tank can be achieved, and the connection between the three-way connector 10 and different vehicles can also be achieved by replacing connecting pipes 20 of different sizes.

[0037] like Figure 1 to Figure 2 As shown, the second aspect of the present disclosure provides a brake line pressure test assembly 100, comprising a test device 30 and the above brake line pressure connector 1, wherein the test device 30 is connected to the second connecting pipe 12. The brake line pressure test assembly 100 provided by the present disclosure has all the beneficial effects of the above brake line pressure connector 1.

[0038] Optionally, the test device 30 is detachably connected to the second pipe 12. On the one hand, the detachable connection between the test device 30 and the second pipe 12 can facilitate the maintenance personnel to disassemble the test device 30 and the connector 1. On the other hand, for different vehicle models, it is also convenient for operators to select a matching test device 30 to test the response time of the vehicle braking system, and the selection of the test device 30 is more flexible.

[0039] The present disclosure does not limit the specific detachable manner between the testing device 30 and the second pipe 12. For example, in an exemplary embodiment provided by the present disclosure, optionally, as Figure 1 , Figure 3 As shown, an internal thread 131 may be formed on the inner surface of the second pipe 12, and an external thread 310 may be formed on the outer surface of the detection connector 31 of the test device 30. The detection connector 31 is inserted into the second pipe 12 and threadedly connected with the second pipe 12. In this way, in the process of connecting or disassembling the test device 30 and the second pipe 12, only the test device 30 needs to be selected, which has the advantages of simple structure and convenient operation.

[0040] Specifically, the internal thread 131 can be formed as a tapered thread. Similarly, the external thread 310 can also be formed as a tapered thread. In this way, the end of the second connecting pipe 12 close to the first connecting pipe 11 can have a smaller opening. For the implementation mode in which a switch valve is also provided in the second connecting pipe 12, the switch valve can be provided in the opening, which is more conducive to improving the sealing performance between the switch valve and the second connecting pipe 12, making it more difficult for the gas source to leak from here.

[0041] In other exemplary embodiments provided in the present disclosure, the testing device 30 and the second connecting pipe 12 may also be connected by other detachable means such as snap connection, flange connection, etc., and the present disclosure does not limit this.

[0042] It should be noted that when the test device 30 is screwed onto the above-mentioned second connecting pipe 12, the detection connector 31 of the test device 30 should not affect the flow path or flow speed of the air source in the second connecting pipe 12, so as to avoid increasing the response time of the vehicle braking system due to the setting of the test device 30.

[0043] In an exemplary embodiment provided in the present disclosure, the above-mentioned brake air chamber can also be connected to the third connecting pipe 13 in the above-mentioned manner, and in order to ensure the consistency of the air source flowing into the test device 30 and the brake air chamber, the air inlet connector provided on the brake air chamber should be consistent with the specifications of the detection connector 31 of the test device 30.

[0044] The third aspect of the present disclosure provides a vehicle, comprising a brake air chamber, an air tank for storing an air source, and the above brake line pressure connector 1, wherein the first connecting pipe 11 of the three-way connector 10 is connected to the air tank, and the third connecting pipe 13 of the three-way connector 10 is connected to the brake air chamber. The vehicle has all the beneficial effects of the above brake line pressure connector 1.

[0045] Alternatively, if Figures 1 to 3 As shown, the second connecting pipe 12 is arranged away from the third connecting pipe 13. That is, the second connecting pipe 12 is arranged away from the third connecting pipe 13, so that when the test device 30 is assembled on the second connecting pipe 12, there is a larger distance between the test device 30 and the brake air chamber connected to the third connecting pipe 13, thereby minimizing the interference or interference of the brake air chamber on the test device 30, and providing a larger installation space for the installation of the test device 30.

[0046] Specifically, for the implementation in which the third connecting pipe 13 is installed above the brake air chamber, the second connecting pipe 12 is arranged away from the third connecting pipe 13, that is, the second connecting pipe 12 can be arranged on the side of the third connecting pipe 13 away from the brake air chamber, and the second connecting pipe 12, the first connecting pipe 11, the third connecting pipe 13 and the brake air chamber of the test device 30 are arranged in sequence from top to bottom, so as to avoid the test device 30 installed on the second connecting pipe 12 from being disturbed or interfered by the brake air chamber.

[0047] In addition, because the test device 30 is arranged above the brake air chamber, the space occupied by the test device 30 in the horizontal direction is reduced, thereby avoiding interference or interference between the test device 30 and the wheels of the vehicle, making it easier to assemble the test device 30.

[0048] As shown in Table 1 below, Table 1 is the test data measured by a connector in the related art, in which the second connecting pipe 12 and the third connecting pipe 13 are asymmetric about the central axis of the first connecting pipe 11 (that is, the flow path of the brake airflow is a straight line, and the flow path of the brake airflow to the brake air chamber is non-straight line):

[0049]

[0050] Similarly, Table 2 below shows the test data measured by the connector in the present disclosure in which the second connecting pipe 12 and the third connecting pipe 13 are symmetrically arranged about the central axis of the first connecting pipe 11 (i.e., the flow path and flow state of the air source flowing to the test device and the air source flowing to the brake air chamber are the same):

[0051]

[0052] It can be seen that the exhaust speed measured by the improved connector is significantly lower than the exhaust speed measured by the connector before the improvement. The braking exhaust speed is faster and the braking response time is more accurate, thereby ensuring higher braking safety.

[0053] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0054] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0055] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A brake line pressure connector, characterized in that: The connector comprises a three-way joint, the three-way joint comprises a first connecting pipe, a second connecting pipe and a third connecting pipe, the first connecting pipe, the second connecting pipe and the third connecting pipe are connected to each other, the first connecting pipe is used to connect to the air storage tank, the second connecting pipe is used to connect to the testing device, and the third connecting pipe is used to connect to the brake air chamber; The second connecting pipe and the third connecting pipe are symmetrically arranged about the central axis of the first connecting pipe.

2. The brake line pressure connector according to claim 1, characterized in that: The central axis of the second connecting pipe and the central axis of the third connecting pipe are respectively perpendicular to the central axis of the first connecting pipe, and the central axis of the second connecting pipe is coaxially arranged with the central axis of the third connecting pipe.

3. The brake line pressure connector according to claim 1, characterized in that: A first air outlet channel is formed inside the second connecting pipe, and a second air outlet channel is formed inside the third connecting pipe. The length of the first air outlet channel is equal to the length of the second air outlet channel, and the inner diameter of the first air outlet channel is equal to the inner diameter of the second air outlet channel.

4. The brake line pressure connector according to claim 1, characterized in that: The connector further comprises a switch valve, which is arranged in the second connecting pipe, and is used to open when the testing device is connected to the second connecting pipe, and is used to close when the testing device is disconnected from the second connecting pipe.

5. The brake line pressure connector according to claim 1, characterized in that: The connector further comprises a connecting pipe, a first end of which is detachably connected to the first connecting pipe, and a second end of which is detachably connected to the gas storage tank.

6. A brake line pressure test assembly, characterized in that: It comprises a testing device and a brake line pressure connector according to any one of claims 1 to 5, wherein the testing device is connected to the second connecting pipe.

7. The brake line pressure test assembly according to claim 6, characterized in that: The testing device is detachably connected to the second connecting pipe.

8. The brake line pressure test assembly according to claim 7, characterized in that: An internal thread is formed on the inner surface of the second connecting pipe, an external thread is formed on the outer surface of the detection joint of the testing device, and the detection joint is inserted into the second connecting pipe and threadedly connected with the second connecting pipe.

9. A vehicle, characterized in that: It comprises a brake air chamber, an air storage tank for storing an air source and a brake line pressure connector according to any one of claims 1 to 5, wherein the first connecting pipe of the three-way joint is connected to the air storage tank, and the third connecting pipe of the three-way joint is connected to the brake air chamber.

10. The vehicle according to claim 9, characterized in that The second connecting pipe is arranged away from the third connecting pipe.

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