Three-way joint and vehicle

Abstract

The application provides a tee joint and a vehicle, and relates to the field of vehicle accessory technology. The tee joint provided by the application comprises a joint body and a valve seat. Three air holes are arranged in the joint body, and the valve seat is arranged in one of the air holes. A valve core of a test joint is arranged in the valve seat. The valve seat is detachably connected with the joint body. By directly integrating the valve seat in the interior of the tee joint to form a single composite component, the secondary assembly process in the actual working condition is eliminated. In addition, the valve seat is detachably connected with the joint body, which greatly shortens the assembly time of the production line, facilitates the disassembly of the valve seat, and facilitates the later maintenance and the separate replacement of the valve seat or the valve core. The test joint does not need to be scrapped as a whole, and the maintenance material cost is significantly reduced.

Description

Technical Field

[0001] This application relates to vehicle parts technology, and more particularly to a tee connector and a vehicle. Background Technology

[0002] Heavy-duty trucks, trailers, and other commercial vehicles typically use air brakes. These vehicles have multiple air pressure circuits, each requiring a test connector to obtain pressure values ​​during vehicle maintenance and troubleshooting. One end of the test connector is connected to the air pressure circuit, while the other end is normally closed. To measure air pressure, a pressure gauge is installed on the normally closed end of the test connector, and the valve core is pushed, opening the circuit and connecting it to the pressure gauge, allowing for pressure measurement.

[0003] In related technologies, the brake chamber of a commercial vehicle and the test connector are assembled together by a tee connector. The tee connector and the test connector are independent components, and they are connected by threads. When measuring air pressure in actual working conditions, the test connector needs to be assembled onto the tee connector by threads first, and then the pressure gauge is installed on the normally closed end of the test connector.

[0004] However, the above setup results in low assembly efficiency because the test connectors and tee connectors are assembled separately. In addition, the test connectors usually need to be replaced as a whole during maintenance, which leads to high maintenance costs and thus higher material costs. Utility Model Content

[0005] In view of this, this application provides a tee connector and vehicle, which aims to improve assembly efficiency, facilitate the maintenance of the test connector, and thus reduce material costs.

[0006] To achieve the above objectives, this application provides a tee connector and a vehicle, employing the following technical solution:

[0007] In a first aspect, this application provides a tee connector, comprising:

[0008] The connector body has three vent holes, one end of which is connected to each other.

[0009] A valve seat is disposed in one of the vent holes, and a valve core of a test connector is disposed in the valve seat;

[0010] The valve seat is detachably connected to the connector body.

[0011] In one possible implementation, the tee fitting provided in this application has an external thread on the outer wall of the valve seat and an internal thread on the inner wall of one of the vent holes;

[0012] The valve seat is configured to be threadedly connected to the inner wall of the vent hole through the engagement of the external thread and the internal thread.

[0013] The valve seat has an outer end face facing outward from the vent hole, and the outer end face is provided with a snap-fit ​​groove, which is configured to snap with a disassembly tool to tighten or loosen the valve seat.

[0014] In one possible implementation, the tee connector provided in this application has a rectangular slot for the snap-fit ​​groove;

[0015] Alternatively, the slot of the snap-fit ​​groove is hexagonal and is used to mate with a hexagonal sleeve.

[0016] In one possible implementation, the tee connector provided in this application further includes a first sealing ring. A sealing groove is provided on the outer side wall of the valve seat, the first sealing ring is located in the sealing groove, and the first sealing ring is used to seal the gap between the valve seat and the vent hole.

[0017] In one possible implementation, the tee fitting provided in this application has the first sealing ring located away from the outer end face relative to the assembly external thread in the length direction of the valve seat.

[0018] In one possible implementation, the tee connector provided in this application includes three connecting branches, one end of the three connecting branches being connected to each other, and each connecting branch having a corresponding vent hole.

[0019] The two connecting branches without the valve seat installed are each provided with an external thread. One of the connecting branches is used to connect to the brake chamber via its external thread, and the other connecting branch is used to connect to the brake pipe via its external thread.

[0020] In one possible implementation, the tee connector provided in this application further includes a grooved nut and a second sealing ring, wherein the grooved nut is provided with a mounting groove and the second sealing ring is located in the mounting groove;

[0021] The grooved nut is fitted onto one of the two connecting branches where the valve seat is not installed, and the second sealing ring is used to abut against the brake chamber / the brake pipe.

[0022] In one possible implementation, the tee connector provided in this application further includes a protective sleeve, which covers the vent hole on which the valve seat is installed.

[0023] In one possible implementation, the tee connector provided in this application includes a protective sleeve comprising a connecting ring, a connecting strip, and a protective cover connected in sequence.

[0024] The connector body is provided with a limiting groove;

[0025] The connecting ring is sleeved on the connector body and located within the limiting groove;

[0026] The protective cover is provided with the vent hole on which the valve seat is installed.

[0027] Secondly, this application provides a vehicle, including a vehicle body and a three-way connector as described above; the vehicle body includes a brake chamber and a brake pipe, and the three-way connector is connected between the brake chamber and the brake pipe.

[0028] The three-way connector and vehicle provided in this application include a connector body and a valve seat. The connector body has three vent holes, one end of which is interconnected. The valve seat is located within one of the vent holes and houses the valve core of the test connector. The valve seat is detachably connected to the connector body. By directly integrating the valve seat into the interior of the three-way connector, a single composite component is formed, eliminating the secondary assembly process in actual working conditions. Furthermore, the detachable connection between the valve seat and the connector body significantly shortens production line assembly time and facilitates valve seat disassembly, enabling later maintenance and individual replacement of the valve seat or valve core. This eliminates the need for complete scrapping of the test connector, significantly reducing maintenance material costs.

[0029] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the technical solutions provided by this application, other technical features contained in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0030] The specific embodiments of this application are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of this application, and this application is not limited to the specific embodiments described below.

[0031] Figure 1 This is a schematic diagram of the structure of the tee connector provided in the embodiments of this application;

[0032] Figure 2 An exploded structural diagram of the tee connector, brake chamber, and brake pipe provided in the embodiments of this application;

[0033] Figure 3 This is a schematic diagram of the internal structure of the tee connector provided in the embodiments of this application;

[0034] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle;

[0035] Figure 5 This is a schematic diagram of the outer end face of the tee connector provided in the embodiments of this application;

[0036] Figure 6 This is a schematic diagram of the outer end face of a tee connector provided in another embodiment of this application.

[0037] Explanation of reference numerals in the attached figures:

[0038] 10. Brake chamber; 20. Brake pipe; 30. Valve core; 100. Connector body; 101. Vent hole; 102. Internal thread; 103. Connecting branch; 104. Connecting external thread; 105. Limiting groove; 200. Valve seat; 201. Assembly external thread; 202. Outer end face; 203. Snap-fit ​​groove; 204. Sealing groove; 300. First sealing ring; 400. Scraper nut; 401. Mounting groove; 500. Second sealing ring; 600. Protective sleeve; 610. Lifting lug; 620. Connecting ring; 630. Connecting strip; 640. Protective cover.

[0039] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0041] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] In the description of the embodiments of this application, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0043] In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise specified precisely.

[0044] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0045] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0046] Heavy-duty trucks, trailers and other commercial vehicles typically use air brakes. Air-brake commercial vehicles have multiple air pressure circuits, and each air pressure circuit needs to be equipped with a test connector to facilitate obtaining the air pressure value of each circuit during vehicle debugging and maintenance.

[0047] One end of the test connector is connected to the air pressure circuit, and the other end is in a normally closed state. When it is necessary to measure the air pressure, the pressure gauge is installed on the normally closed end of the test connector, and the valve core of the test connector is pushed at the same time. The closed state is opened, so that the air pressure circuit is connected to the pressure gauge, and the pressure value can be measured.

[0048] The brake chamber and test connector of a commercial vehicle are assembled together via a T-connector. The T-connector and the test connector are independent components, connected by external threads. When measuring air pressure in actual working conditions, the brake chamber is already connected to the brake air pipe via the T-connector. The other end of the T-connector needs to be threaded onto the test connector, and then the pressure gauge is installed on the normally closed end of the test connector.

[0049] It is understandable that the aforementioned secondary assembly process (i.e., assembling the test connector onto the tee connector) is inconvenient, and the external thread connection increases the risk of air leakage due to vehicle vibrations during long-term vehicle operation.

[0050] The above setup results in low assembly efficiency because the test connector and tee connector are assembled separately. Moreover, the test connector needs to be assembled on the tee connector for a long time and is affected by the environment. When the test connector is damaged or corroded, it usually needs to be scrapped and replaced as a whole, resulting in high maintenance costs and thus higher material costs.

[0051] Based on the above-mentioned technical problems, this application provides a three-way connector and a vehicle. In this technical solution, the three-way connector includes a connector body and a valve seat. The connector body is provided with three vent holes, one end of which is interconnected. The valve seat is disposed in one of the vent holes and a valve core of the test connector is disposed in the valve seat. The valve seat is detachably connected to the connector body.

[0052] By directly integrating the valve seat into the interior of the tee fitting, a single composite component is formed, eliminating the secondary assembly process in actual working conditions. Furthermore, the valve seat and fitting body are detachably connected, significantly shortening production line assembly time and facilitating valve seat disassembly. This allows for easier maintenance and individual replacement of the valve seat or valve core, eliminating the need for complete fitting scrapping and significantly reducing maintenance material costs.

[0053] In addition, the tee connector itself provides a safety barrier for the valve seat, preventing external environment from causing significant damage to the valve seat or valve core, and extending the service life of the valve seat or valve core.

[0054] It should be noted that, Figures 1 to 6 This diagram illustrates a simplified schematic of the tee connector and other components in the vehicle. The specific structures of the tee connector and other components in the vehicle are not limited to these. Figures 1 to 6 of examples.

[0055] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0056] Reference Figure 1 and Figure 2 As shown in the figure, this application provides a three-way connector for a vehicle. The vehicle includes a brake chamber 10 and a brake pipe 20, and the three-way connector is connected between the brake chamber 10 and the brake pipe 20. Both the brake chamber 10 and the brake pipe 20 are installed on the vehicle body. This application does not limit the position and structure of the brake chamber 10 and the brake pipe 20.

[0057] Reference Figure 3 As shown, and in combination Figure 1 and Figure 2 The tee connector includes a connector body 100 and a valve seat 200. The connector body 100 is provided with three vent holes 101, and one end of the three vent holes 101 is connected to each other.

[0058] Reference Figure 4As shown, the valve seat 200 is disposed in one of the vent holes 101, and the valve core 30 of the test connector is disposed in the valve seat 200; the connection method between the valve core 30 and the valve seat 200 is a mature technology in the relevant field and is not limited here.

[0059] The valve seat 200 is detachably connected to the connector body 100. Specifically, the valve seat 200 can be cylindrical. The outer wall of the valve seat 200 has an external thread 201, and the inner wall of one of the vent holes 101 has an internal thread 102. The valve seat 200 is configured to be threadedly connected to the inner wall of the vent hole 101 by the engagement of the external thread 201 and the internal thread 102.

[0060] Traditional solutions require separate assembly of the tee connector and the test connector. In the above implementation, by directly integrating the valve seat 200 into the interior of the tee connector, a single composite component is formed, eliminating the secondary assembly process in actual working conditions and reducing the overall weight of the tee connector.

[0061] In addition, the valve seat 200 is directly screwed into the internal thread 102 of the vent hole 101 by the assembly external thread 201, which greatly shortens the assembly time on the production line. It can be understood that the valve seat 200 and valve core 30 are integrated into the tee connector before it is assembled onto the vehicle, thereby avoiding the secondary assembly process in the actual vehicle.

[0062] The above-described configuration facilitates the disassembly of the valve seat 200. As a vulnerable component, the valve seat 200 can be replaced individually, simplifying future maintenance and allowing for the individual replacement of either the valve seat 200 or the valve core 30. This eliminates the need to scrap the entire test connector, significantly reducing maintenance material costs. Traditional solutions often require the replacement of the test connector and even the tee connector due to test connector failure. In this embodiment, the tee connector precisely isolates the faulty unit, avoiding unnecessary losses.

[0063] In addition, the installation direction of the valve seat 200 is constrained by the rotation direction of the assembly external thread 201, which fundamentally avoids system failure caused by reverse assembly.

[0064] In one possible implementation, the connector body 100 can be made of 45# steel, which, compared to copper, reduces weight and cost. The surface of the connector body 100 undergoes electrophoretic treatment. It can be repeatedly disassembled and reassembled, meeting requirements for leakage and pressure resistance, and extending its service life.

[0065] In one possible implementation, refer to Figure 3 and Figure 4 As shown, the valve seat 200 has an outer end face 202 facing outward from the vent 101. The outer end face 202 is provided with a snap-fit ​​groove 203, which is configured to engage with a disassembly / removal tool to tighten or loosen the valve seat 200. It should be noted here that, as... Figure 3After the valve seat 200 is assembled into the vent hole 101, it has an outer end face 202 facing the outside of the vent hole 101 in the length direction of the valve seat 200, or can be understood as an outer side wall.

[0066] A snap-fit ​​groove 203 is formed on the outer end face 202, and the snap-fit ​​groove 203 can be a snap-fit ​​groove 203 cut towards the inside of the vent hole 101. The disassembly and assembly tools here can be adapted to the snap-fit ​​groove 203. This allows the operator to use the disassembly and assembly tools (not shown in the figure) to apply force to the valve seat 200 to tighten or loosen the valve seat 200. For example, by inserting the disassembly and assembly tool into the snap-fit ​​groove 203 and rotating the disassembly and assembly tool in the direction of the mounting external thread 201 of the valve seat 200 or against the direction of the mounting external thread 201 of the valve seat 200, the tightening or loosening operation of the valve seat 200 can be completed.

[0067] In one possible implementation, refer to Figure 5 As shown, the slot of the snap-fit ​​groove 203 can be rectangular; and the number of snap-fit ​​grooves 203 can be set to multiple. The disassembly and assembly tools can be plate-shaped, strip-shaped, or wrench-shaped.

[0068] Or, refer to Figure 6 As shown, the slot 203 has a hexagonal opening and is used to mate with a hexagonal sleeve. The disassembly / assembly tool can be a hexagonal sleeve.

[0069] In the above embodiments, the snap-fit ​​groove 203 is designed to precisely engage with standard disassembly and assembly tools (such as wrenches and hexagonal sockets) to form a stable torque transmission path, facilitating the disassembly and assembly of the valve seat 200. For example, when the valve seat 200 or valve core 30 is damaged, the operator can use the disassembly and assembly tools to loosen the valve seat 200, remove it from the tee connector, replace it with a new valve seat 200 or valve core 30, and then reinstall the valve seat 200.

[0070] In one possible implementation, a first sealing ring 300 is also included. A sealing groove 204 is provided on the outer side wall of the valve seat 200. Specifically, the sealing groove 204 is arranged around the outer peripheral side wall of the valve seat 200. The first sealing ring 300 is located in the sealing groove 204 and is used to seal the gap between the valve seat 200 and the vent hole 101.

[0071] In practice, the diameter of the first sealing ring 300 is greater than the depth of the sealing groove 204 to ensure that the first sealing ring 300 seals the gap between the valve seat 200 and the vent hole 101.

[0072] In the above embodiment, the first sealing ring 300 can be made of an elastic material, such as nitrile rubber. The first sealing ring 300 is embedded in the annular gap between the valve seat 200 and the vent hole 101, forming an omnidirectional continuous sealing band, thereby improving airtightness.

[0073] In one possible implementation, along the length of the valve seat 200, the first sealing ring 300 is located away from the outer end face 202 relative to the assembly external thread 201.

[0074] Reference Figure 4 As shown, the assembly external thread 201 on the valve seat 200 is closer to the outer end face 202 of the valve seat 200. The threaded engagement between the assembly external thread 201 and the internal thread 102 achieves a primary seal, and the first sealing ring 300 achieves a secondary seal, significantly improving airtightness. Furthermore, in the above arrangement, the presence of the assembly external thread 201 also prevents the first sealing ring 300 from slipping.

[0075] Alternatively, the first sealing ring 300 can be positioned closer to the outer end face 202 relative to the assembly external thread 201. In the above configuration, even in extreme operating conditions (such as slight damage to the assembly external thread 201), the first sealing ring 300 can still maintain its basic sealing function, preventing sudden pressure loss accidents.

[0076] In one possible implementation, continue to refer to Figure 1 , Figure 2 and Figure 3 As shown, the connector body 100 includes three connecting branches 103, one end of which is connected to each other, and each connecting branch 103 is provided with a corresponding vent hole 101. It can be understood that there is a one-to-one correspondence between the connecting branch 103 and the vent hole 101.

[0077] The two connecting branches 103 without valve seat 200 are each provided with external connecting thread 104. One connecting branch 103 is used to be threadedly connected to brake chamber 10 through its external connecting thread 104, and the other connecting branch 103 is used to be threadedly connected to brake pipe 20 through its external connecting thread 104.

[0078] In the above embodiment, the outer periphery of the two connecting branches 103 without valve seat 200 is respectively provided with connecting external threads 104, so that the three-way connector becomes the air circuit hub, one end connects to the brake air chamber 10, and the other end connects directly to the brake air pipe 20. By setting the connecting external threads 104, the connection structure of the standardized brake air chamber 10 and brake air pipe 20 is adapted, reducing the complexity of the vehicle tool configuration.

[0079] In one possible implementation, the connecting branch 103 on which the valve seat 200 is mounted may also be provided with a connecting external thread 104, which is used to connect to the testing instrument.

[0080] In one possible implementation, a scraper nut 400 and a second sealing ring 500 are also included. The scraper nut 400 is provided with a mounting groove 401, and the second sealing ring 500 is located in the mounting groove 401. The scraper nut 400 is sleeved on one of the two connecting branches 103 on which the valve seat 200 is not installed, and the second sealing ring 500 is used to abut against the brake chamber 10 / brake pipe 20.

[0081] In the above embodiment, the scraper nut 400 is threadedly connected to the connecting external thread 104. The scraper nut 400 can be sleeved on the connecting branch 103 connected to the brake chamber 10, or it can be sleeved on the branch connected to the brake pipe 20. The second sealing ring 500 is used to abut against the brake chamber 10 / brake pipe 20, which can further improve the air tightness, especially suitable for the harsh working conditions of high-frequency start and stop of heavy trucks.

[0082] The second sealing ring 500 can be made of fluororubber, with a temperature range extended from -40 degrees Celsius to 150 degrees Celsius, effectively addressing the sealing failure problem caused by extreme temperature changes in the braking system.

[0083] In one possible implementation, the tee connector also includes a protective sleeve 600, which covers a vent hole 101 on which a valve seat 200 is mounted.

[0084] In the above embodiment, the protective sleeve 600 completely covers the vent 101 where the valve seat 200 is located, effectively preventing external environmental pollutants such as mud, rainwater, and salt spray from entering the gas circuit system. The outer surface of the protective sleeve 600 is provided with anti-slip texture to prevent accidental collisions caused by tool slippage; at the same time, it restricts non-professionals from directly contacting the valve core 30, thus physically avoiding the risk of accidental contact.

[0085] Furthermore, the protective cover 600 is provided with a lifting ear 610 on the outside. The staff can pinch the lifting ear 610 to easily remove the protective cover 600 from the connector body 100, which makes it convenient for the staff to apply force.

[0086] In one possible implementation, the protective cover 600 may be made of a transparent material, which allows for visual inspection of the internal condition of the valve seat 200, enabling the identification of signs of blockage or corrosion without disassembly.

[0087] In one possible implementation, the protective sleeve 600 includes a connecting ring 620, a connecting strip 630, and a protective cover 640 connected in sequence. A limiting groove 105 is provided on the connector body 100; the connecting ring 620 is sleeved on the connector body 100 and located within the limiting groove 105; the protective cover 640 covers the vent hole 101 on which the valve seat 200 is installed. A pull lug 610 is connected to the protective cover 640.

[0088] Optionally, the connecting ring 620, connecting strip 630, protective cover 640, and lifting lug 610 can be integrally injection molded, which can significantly improve structural strength. Engineering plastic materials can be used to avoid brittleness and cracking.

[0089] The limiting groove 105 provides a positioning basis for the connecting ring 620, preventing the connecting ring 620 from sliding randomly on the connector body 100.

[0090] In addition, when the staff removes the protective cover 640, the protective cover 640 will not detach from the connector body 100 due to the presence of the connecting strip 630 and the connecting ring 620, thus avoiding loss or other situations.

[0091] In one possible implementation, this application provides a vehicle including a vehicle body and the aforementioned three-way connector, which has been described in detail above and will not be repeated here. This vehicle possesses the technical advantages of the aforementioned three-way connector. In this application embodiment, the vehicle can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended vehicle, etc. This application embodiment does not limit the specific structure of the vehicle.

[0092] The vehicles mentioned in this application embodiment can also refer to large cars, small cars, special-purpose vehicles, etc. For example, according to vehicle type, the vehicles in this application embodiment can be sedans, off-road vehicles, multi-purpose vehicles (MPVs), or other types of vehicles. Of course, they can also be other types of vehicles, and this application embodiment does not limit them.

[0093] The implementation principle of the three-way connector and vehicle in this application embodiment is as follows: The three-way connector includes a connector body 100 and a valve seat 200. The connector body 100 is provided with three vent holes 101, and one end of the three vent holes 101 is connected to each other. The valve seat 200 is disposed in one of the vent holes 101, and the valve core 30 of the test connector is disposed in the valve seat 200. The valve seat 200 is detachably connected to the connector body 100.

[0094] By directly integrating the valve seat 200 into the interior of the tee connector, a single composite component is formed, eliminating the secondary assembly process in actual working conditions. Furthermore, the valve seat 200 is detachably connected to the connector body 100, significantly shortening production line assembly time and facilitating disassembly of the valve seat 200. This makes subsequent maintenance and individual replacement of the valve seat 200 or valve core 30 easier, eliminating the need for complete replacement of the test connector and significantly reducing maintenance material costs.

[0095] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein.

[0096] The embodiments in this application are intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed in this application. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0097] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A tee connector, characterized in that, include: The connector body (100) has three vent holes (101) inside, and one end of the three vent holes (101) is connected to each other. A valve seat (200) is disposed in one of the vent holes (101), and a valve core of a test connector is disposed in the valve seat (200); The valve seat (200) is detachably connected to the connector body (100).

2. The tee connector according to claim 1, characterized in that, The outer wall of the valve seat (200) has an external thread (201) for mounting, and the inner wall of one of the vent holes (101) has an internal thread (102). The valve seat (200) is configured to be threadedly connected to the inner wall of the vent hole (101) through the engagement of the external thread (201) and the internal thread (102). The valve seat (200) has an outer end face (202) facing outward of the vent (101), and the outer end face (202) is provided with a snap-fit ​​groove (203) configured to snap with a disassembly tool to tighten or loosen the valve seat (200).

3. The tee connector according to claim 2, characterized in that, The slot of the snap-fit ​​groove (203) is rectangular; Alternatively, the slot of the snap-fit ​​groove (203) is hexagonal and is used to mate with a hexagonal sleeve.

4. The tee connector according to claim 2, characterized in that, It also includes a first sealing ring (300), and a sealing groove (204) is provided on the outer side wall of the valve seat (200). The first sealing ring (300) is located in the sealing groove (204), and the first sealing ring (300) is used to seal the gap between the valve seat (200) and the vent (101).

5. The tee connector according to claim 4, characterized in that, Along the length of the valve seat (200), the first sealing ring (300) is away from the outer end face (202) relative to the assembly external thread (201).

6. The tee connector according to any one of claims 2 to 5, characterized in that, The connector body (100) includes three connecting branches (103), one end of the three connecting branches (103) is connected to each other, and each connecting branch (103) is provided with a corresponding vent hole (101). The two connecting branches (103) without the valve seat (200) installed are each provided with external connecting threads (104). One of the connecting branches (103) is used to be threadedly connected to the brake chamber (10) through its external connecting thread (104), and the other connecting branch (103) is used to be threadedly connected to the brake pipe (20) through its external connecting thread (104).

7. The tee connector according to claim 6, characterized in that, It also includes a grooved nut (400) and a second sealing ring (500), wherein the grooved nut (400) is provided with a mounting groove (401) and the second sealing ring (500) is located in the mounting groove (401); The grooved nut (400) is fitted onto one of the two connecting branches (103) where the valve seat (200) is not installed, and the second sealing ring (500) is used to abut against the brake chamber (10) / the brake pipe (20).

8. The tee connector according to any one of claims 1 to 5, characterized in that, It also includes a protective sleeve (600) that covers the vent (101) on which the valve seat (200) is installed.

9. The tee connector according to claim 8, characterized in that, The protective sleeve (600) includes a connecting ring (620), a connecting strip (630), and a protective cover (640) connected in sequence. The connector body (100) is provided with a limiting groove (105); The connecting ring (620) is sleeved on the connector body (100) and located in the limiting groove (105); The protective cover (640) covers the vent (101) on which the valve seat (200) is installed.

10. A vehicle, characterized in that, The vehicle body includes a vehicle body and a tee connector as described in any one of claims 1 to 9; the vehicle body includes a brake chamber (10) and a brake pipe (20), and the tee connector is connected between the brake chamber (10) and the brake pipe (20).

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