Angle-adjustable valve nozzle and application thereof

Abstract

The application discloses an angle-adjustable valve nozzle, which comprises a nozzle rod assembly and a transmitter, the transmitter is installed at the tail of the nozzle rod assembly and can rotate along the tail of the nozzle rod assembly; an elastic element is installed on one side of the transmitter facing the nozzle rod assembly, the other side of the elastic element abuts against a sealing element outside the nozzle rod assembly, and the minimum torque of the elastic element is greater than the installation torque of the transmitter. The transmitter is rotationally connected at the tail of the nozzle rod assembly, and the transmitter and the nozzle rod assembly abandon the traditional hinged mode, so that the angle of the transmitter can be adjusted at will, and the elastic element is arranged, the elastic element always fixes the nozzle rod assembly on the rim under the action of force, and the sealing element on the nozzle rod assembly and the transmitter are bidirectionally abutted and positioned, the product solves the universality problem of the TPMS valve nozzle, realizes the function that the angle of the TPMS valve nozzle can be adjusted once the product is installed, reduces the types of the hub matched with the TPMS valve nozzle, and is convenient and fast to use.

Description

Technical Field

[0001] This invention relates to the field of TPMS valve technology, specifically to an angle-adjustable valve and its application. Background Technology

[0002] To enable real-time monitoring, the system is equipped with a TPMS transmitter (Tire Pressure Monitoring System) on each tire. This transmitter monitors the pressure and temperature inside the tire and sends the data to a TPMS receiver inside the vehicle. To ensure a secure installation of the TPMS transmitter and prevent it from falling off under various harsh driving conditions, it is typically mounted on the tire rim and fixed to the valve stem.

[0003] The patent, with publication number CN113752759A, entitled "A Tire Inflation Valve Equipped with an Adjustment System for a TPMS Sensor," specifically discloses that "the tire inflation valve includes a rod terminating at a head, the head being equipped with a head body that is convex, such as hemispherical, cylindrical, or elliptical. The valve includes an adjustable insert associated with a TPMS sensor via a connecting device and hinged to the head body to rotate about a lateral axis and allow adjustment of the sensor's position." This patent uses a locking nut to secure the transmitter and a connecting device to fix the transmitter sensor to the nozzle head. While this achieves the desired transmitter angle, it requires fixation via the connecting device after each adjustment. Therefore, this patent is insufficient for securing the transmitter after adjustment, being time-consuming and labor-intensive. Furthermore, with prolonged use, the seal between the nozzle and the hub deteriorates, affecting the safe operation of both the nozzle and the transmitter.

[0004] This application proposes an angle-adjustable valve stem and its application to address the aforementioned shortcomings. Summary of the Invention

[0005] The technical problem to be solved by this invention is: how to solve the current problems of inconvenience in fixing the mouthpiece and the transmitter, and the sealing of the mouthpiece and the hub.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] An angle-adjustable valve includes a valve stem assembly and a transmitter, the transmitter being mounted at the tail of the valve stem assembly and capable of rotating along the tail of the valve stem assembly;

[0008] An elastic element is installed on the side of the transmitter facing the nozzle assembly, and the other side of the elastic element abuts against a seal outside the nozzle assembly. The minimum torque of the elastic element is greater than the installation torque of the transmitter.

[0009] This application rotatably connects the transmitter to the tail of the valve stem assembly. The transmitter and valve stem assembly abandon the traditional hinged connection, thus facilitating easy adjustment of the transmitter angle. Simultaneously, an elastic element is incorporated, which continuously holds the valve stem assembly to the rim under force, providing bidirectional clamping and positioning between the seal on the valve stem assembly and the transmitter. When clamping the transmitter, it ensures the transmitter's stability after angle adjustment. When clamping the seal, it ensures the reaction force of the elastic element acts on the seal, guaranteeing a tight seal between the valve stem assembly and the hub. This product solves the TPMS valve universality problem, enabling one-time installation and adjustable angle functionality for TPMS valves, reducing the number of TPMS valve models required for hub compatibility, and making it convenient and quick to use.

[0010] As a further aspect of the present invention: the elastic element is installed in the mounting slot on the transmitter, and the portion of the elastic element that abuts against the nozzle rod assembly is arc-shaped.

[0011] As a further aspect of the present invention: the elastic member includes an integrally formed vertical part one, an arc-shaped part and a vertical part two, wherein the arc-shaped part is located between the vertical part one and the vertical part two, the vertical part one is inserted into the transmitter, the vertical part two abuts against the transmitter from the outside, and the protruding surface of the arc-shaped part abuts against the nozzle rod assembly.

[0012] As a further aspect of the present invention: the elastic element includes an integrally formed positioning plate 1, an arc-shaped part 2, and a bending part, wherein the arc-shaped part 2 is located between the positioning plate 1 and the bending part, the positioning plate 1 is fixed inside the transmitter, the bending part does not contact the transmitter, and the protruding surface of the arc-shaped part 2 abuts against the nozzle rod assembly.

[0013] As a further aspect of the present invention: the elastic element includes an integrally formed positioning plate two and an arc-shaped part three, and the two form a "D"-shaped structure. The positioning plate two is fixed inside the transmitter, and the protruding surface of the arc-shaped part three abuts against the nozzle rod assembly.

[0014] As a further aspect of the present invention: the mouthpiece assembly includes a mouthpiece, wherein the head of the mouthpiece is provided with a threaded portion one, the middle is provided with a threaded portion two, and the tail is provided with a tail clamp, the tail clamp being rotatably connected to the transmitter.

[0015] As a further aspect of the present invention: a nut and a seal are installed on the outer side of the nozzle rod, the seal including a rubber gasket and a washer, wherein the nut is threadedly connected to the threaded portion.

[0016] As a further aspect of the present invention: the tail clip has a cylindrical structure, and both ends of the cylindrical tail clip are rotatably connected to the transmitter via a rotating shaft, with the rotation of the transmitter centered on the cylindrical tail clip.

[0017] As a further aspect of the present invention: the tail clip has a spherical structure, and both ends of the spherical tail clip are rotatably connected to the transmitter via a rotating shaft, with the rotation of the transmitter centered on the cylindrical tail clip.

[0018] The present invention also discloses the application of an angle-adjustable valve stem on automobile wheel hubs.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] Firstly, this application rotatably connects the transmitter to the tail of the valve stem assembly. The transmitter and valve stem assembly abandon the traditional hinged connection, thus facilitating easy adjustment of the transmitter angle. Simultaneously, an elastic element is incorporated, which continuously holds the valve stem assembly to the rim under force, providing bidirectional clamping and positioning between the seal on the valve stem assembly and the transmitter. When clamping the transmitter, it ensures the transmitter's stability after angle adjustment. When clamping the seal, it ensures the reaction force of the elastic element acts on the seal, guaranteeing a tight seal between the valve stem assembly and the hub. This product solves the TPMS valve universality problem, enabling one-time installation and adjustable angle adjustment of TPMS valve products, reducing the number of TPMS valve models that need to be matched with the hub, and making it convenient and quick to use.

[0021] Secondly, after the valve stem product of this application is locked and installed, the elastic element keeps the nut and valve stem fixed to the rim under the action of force. During the life cycle of this application, the installation torque of the nut will not decrease, thus ensuring the sealing performance of the gasket. After the nut is directly tightened, the disassembly torque of the nut will gradually decrease over time. This invention is more advantageous for safe driving. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an angle-adjustable valve stem according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of an adjustable valve stem from another perspective according to an embodiment of the present invention.

[0024] Figure 3 This is an embodiment of the present invention. Figure 2 Top view;

[0025] Figure 4 This is an embodiment of the present invention. Figure 2 An explosion diagram;

[0026] Figure 5 This is a schematic diagram of the structure of the elastic element in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the nozzle assembly according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the TPMS valve stem and wheel hub installation according to an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the elastic element in Embodiment 3 of the present invention;

[0030] Figure 9 This is a schematic diagram of the elastic element in Embodiment 4 of the present invention;

[0031] Explanation of reference numerals in the attached drawings: 1. Nozzle assembly; 101. Threaded part one; 102. Nozzle; 103. Threaded part two; 104. Tail clamp; 2. Nut; 3. Rubber gasket; 4. Washer;

[0032] 5. Elastic component; 51. Vertical part one; 52. Arc-shaped part one; 53. Vertical part two; 51′. Positioning plate one; 52′. Arc-shaped part two; 53′. Bending part; 51”. Positioning plate two; 52”. Arc-shaped part three;

[0033] 6. Transmitter; 7. Hub. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1

[0036] Reference Figure 2 , Figure 3 and Figure 4 An angle-adjustable valve includes a valve stem assembly 1, a nut 2, a rubber pad 3, a gasket 4, an elastic element 5, and a transmitter 6. The nut 2, rubber pad 3, and gasket 4 are all installed on the outside of the valve stem assembly 1. The transmitter 6 is installed at the tail of the valve stem assembly 1 and can rotate along the tail of the valve stem assembly 1. One side of the elastic element 5 is installed on the side of the transmitter 6 facing the valve stem assembly 1, and the other side of the elastic element 5 abuts against the valve stem assembly 1. In use, by pressing down or lifting the transmitter 6, the transmitter can be driven to rotate along the tail of the valve stem assembly. At this time, the elastic element 5 also rotates accordingly, thereby realizing the adjustment of the position of the transmitter 6.

[0037] Reference Figure 4The mouthpiece assembly 1 includes a mouthpiece 102, wherein the mouthpiece 102 has a threaded portion 101 at its head, a threaded portion 103 in the middle, and a tail clamp 104 at its tail. The tail clamp 104 is rotatably connected to the transmitter 6, and the tail clamp 104 has a cylindrical structure (e.g., ...). Figure 4 As shown), the cylindrical tail clip 104 is rotatably connected to the transmitter 6 via a rotating shaft. The transmitter 6 has a slot for connecting with the cylindrical tail clip 104, and the top of the slot is open (as shown). Figure 2 As shown, when installing the transmitter 6, it can be directly inserted from the bottom of the cylindrical tail clip 104. The transmitter 6 can rotate around the cylindrical tail clip 104 as the center. It should be noted that the cylindrical structure is adopted, and the cylindrical tail clip 104 and the tail of the nozzle rod 102 form a "T" shape structure, which can just fit the cylindrical tail clip 104 into the transmitter 6. The transmitter 6 also has a "T" shaped groove connected to the tail clip 104. The "T" shaped structure can limit the transmitter 6 and will not cause damage to the transmitter 6 during installation. The two ends of the "T" shape abut against the "T" shaped groove of the transmitter to just play the role of limiting.

[0038] Furthermore, nut 2 is threaded onto threaded portion 103, and rubber gasket 3 is also fitted onto the outside of nozzle rod 102, with rubber gasket 3 located on the side of nut 2 facing transmitter 6; washer 4 is also fitted onto the outside of nozzle rod 102, with washer 4 located on the side of rubber gasket 3 facing away from nut 2 (e.g., Figure 3 As shown in the diagram, during installation, the rubber pad 3 and the gasket 4 fit perfectly into the car wheel hub 7. The nozzle rod 102 is then secured to the wheel hub 7 using the nut 2. The rubber pad 3 and the gasket 4 also serve to seal the nozzle rod 102 and the wheel hub 7, thereby ensuring the nozzle rod is installed stably.

[0039] Reference Figure 2 and Figure 5The elastic element 5 includes an integrally formed vertical portion 51, an arc-shaped portion 52, and a second vertical portion 53. The arc-shaped portion 52 is located between the first vertical portion 51 and the second vertical portion 53. The first vertical portion 51 is inserted into the mounting groove on the transmitter 6, and the second vertical portion 53 abuts against the transmitter 6 from the outside. The length of the first vertical portion 51 is longer than the length of the second vertical portion 53 to ensure the overall stability of the elastic element 5 and the transmitter 6, and to ensure that they can rotate together. The protruding surface of the arc-shaped portion 52 abuts against the gasket 4. It should be noted that the minimum torque of the elastic element 5 must be greater than the installation torque of the transmitter 6. Generally, the installation torque of the transmitter 6 is 12 N·m. In practical applications, the compressive strength is generally selected to be greater than 200N to ensure the compressive strength of the elastic element 5. The specific selection is made according to the actual situation and the application does not limit it. During use, the arc-shaped part 52 is subjected to the reaction force from the gasket 4, rubber pad 3, etc. on the nozzle rod. Its displacement is about 0.3-0.5mm, but it will not affect the normal use of the elastic element 5. At this time, the elastic element 5 can not only play the positioning role between the transmitter 6 and the nozzle rod assembly 1, but also withstand the reaction force from the gasket 4, rubber pad 3 and other components to ensure the service life of the gasket 4 and rubber pad 3, thereby ensuring the sealing of the connection between the nozzle rod 102 and the hub 7.

[0040] During use, the elastic element 5 constantly presses against the gasket 4 and the rubber pad 3 under the action of the reaction force, while the nut 2 presses against the rubber pad 3 and the gasket 4 from the other side. This means that the nut 2 and the elastic element 5 apply force to the gasket 4 and the rubber pad 3 from both sides, reducing the force between them during use. At the same time, it can also ensure the position of the gasket 4 and the rubber pad 3, prevent them from deforming after long-term use, slow down the wear and tear of the gasket 4 and the rubber pad 3, ensure the sealing performance between the nozzle rod 102 and the wheel hub 7, and thus improve the overall stability of this application when installed on the wheel hub 7. With the above settings, the installation torque of the nut 2 will not decrease during the life of this application, thus ensuring the sealing performance of the rubber pad 4. After the nut 2 is directly tightened, the disassembly torque of the nut 2 will gradually decrease over time, which is more advantageous for safe driving.

[0041] Example 2

[0042] The rest is the same as above, the difference being: the tail clip 104 has a spherical structure (such as...). Figure 6As shown in the diagram, the spherical tail clip 104 is rotatably connected to the transmitter 6 via a rotating shaft. The transmitter 6 can rotate around the spherical tail clip 104 as the center. It should be noted that the diameter of the spherical tail clip 104 is larger than the diameter of the tail of the nozzle rod 102 that is in direct contact with it. In cross-sectional view, the spherical tail clip 104 and the tail of the nozzle rod 102 also have a "T" shaped structure, which can just fit the spherical tail clip 104 into the transmitter 6. The transmitter 6 also has a "T" shaped groove that connects to the spherical tail clip 104. The "T" shaped structure can limit the transmitter 6 and will not cause damage to the transmitter 6 during installation. The two ends of the "T" shape abut against the "T" shaped groove of the transmitter 6 to play a limiting role.

[0043] Example 3

[0044] The rest is the same as above, except that: the elastic element 5 includes an integrally formed positioning plate 51', an arc-shaped portion 52', and a bent portion 53', wherein the arc-shaped portion 52' is located between the positioning plate 51' and the bent portion 53'. The positioning plate 51' can be fixed to the transmitter 6 by bolts, pins, or welding. The bent portion 53' does not contact the transmitter 6. The protruding surface of the arc-shaped portion 52' abuts against the nozzle rod assembly 1. It should be noted that the minimum torque of the elastic element 5 must be greater than the installation torque of the transmitter 6. Generally, the installation torque of the transmitter 6 is 12 N·m. The compressive strength of the elastic element 5 in actual use is... Generally, a value greater than 200N is selected to ensure the compressive strength of the elastic element 5. The specific selection is based on the actual needs of the site, and this application does not impose any restrictions. During use, the arc-shaped part 52 is subjected to the reaction force from the gasket 4, rubber pad 3, etc. on the nozzle rod, and its displacement is approximately 0.3-0.5mm, but it will not affect the normal use of the elastic element 5. At this time, the elastic element 5 can not only play the role of positioning between the transmitter 6 and the nozzle rod assembly 1, but also withstand the reaction force from the gasket 4, rubber pad 3, etc., to ensure the service life of the gasket 4 and rubber pad 3, thereby ensuring the sealing of the connection between the nozzle rod 102 and the hub 7.

[0045] Example 4

[0046] The rest is the same as above, except that: the elastic element 5 includes an integrally formed positioning plate 2 51" and an arc-shaped part 3 52", which together form a "D"-shaped structure. The positioning plate 2 51" is fixed inside the transmitter 6, and the protruding surface of the arc-shaped part 3 52" abuts against the nozzle rod assembly 1. It should be noted that the minimum torque of the elastic element 5 must be greater than the installation torque of the transmitter 6. Generally, the installation torque 6 of the transmitter is 12 N·m. In actual use, the compressive strength of the elastic element 5 is generally selected to be greater than 200 N to ensure the compressive strength of the elastic element 5. The choice of which to use depends on the needs of the site and is not limited in this application. When in use, the arc-shaped part 52 is subjected to the reaction force from the gasket 4, rubber pad 3, etc. on the nozzle rod, and its displacement is about 0.3-0.5mm. However, it will not affect the normal use of the elastic element 5. At this time, the elastic element 5 can not only play the role of positioning between the transmitter 6 and the nozzle rod assembly 1, but also withstand the reaction force from the gasket 4, rubber pad 3 and other components to ensure the service life of the gasket 4 and rubber pad 3, thereby ensuring the sealing of the connection between the nozzle rod 102 and the hub 7.

[0047] The specific operating principle of this application is as follows: During product installation, first insert the gasket 4 into the tail of the mouthpiece 1, then insert the rubber gasket 3 into the gasket 4, and then snap the transmitter 6 into the ball head at the tail of the mouthpiece 1. Insert the two elastic elements 5 into the front mounting slots of the transmitter 6 respectively. At this time, the transmitter 6 is pre-installed on the mouthpiece under the action of the elastic elements 5. Figure 2 and Figure 3 When installing the TPMS valve stem onto the wheel hub 7, first insert the valve stem rod 1 into the rim hole, adjust the transmitter 6 to the required position, and then tighten the nut 2 on the valve stem. At this time, the elastic element 5 is compressed through the threaded connection, locking the transmitter 6 outside the retaining piece 104 at the end of the valve stem. The transmitter is now in place and its position is fixed in the desired location. The entire installation process only requires tightening the nut 2, after which the position of the transmitter 6 can be adjusted. That is, the transmitter 6 and the elastic element 5 rotate as a unit along the retaining piece 104 at the end of the valve stem, thus achieving the function of adjustable installation angle in one step.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An angle-adjustable valve, comprising a valve stem assembly (1) and a transmitter (6), characterized in that: The transmitter (6) is mounted at the tail of the mouth rod assembly (1) and is capable of rotating along the tail of the mouth rod assembly (1); The transmitter (6) has an elastic element (5) installed on one side facing the mouth rod assembly (1), and the other side of the elastic element (5) abuts against the seal outside the mouth rod assembly (1). The minimum torque of the elastic element (5) is greater than the installation torque of the transmitter (6). The elastic element (5) is installed in the mounting groove on the transmitter (6), and the part of the elastic element that abuts against the mouth rod assembly (1) is arc-shaped. The mouthpiece assembly (1) includes a mouthpiece (102), and a tail clip (104) is provided at the tail of the mouthpiece (102). The tail clip (104) has a cylindrical structure, and both ends of the cylindrical tail clip are rotatably connected to the transmitter (6) through a rotating shaft. The rotation of the transmitter (6) is centered on the cylindrical tail clip (104). The tail clip (104) has a spherical structure, and both ends of the spherical tail clip are rotatably connected to the transmitter (6) through a rotating shaft. The rotation of the transmitter (6) is centered on the cylindrical tail clip (104).

2. The adjustable valve stem according to claim 1, characterized in that: The elastic element (5) includes an integrally formed vertical part one (51), an arc-shaped part (52) and a vertical part two (53), wherein the arc-shaped part (52) is located between the vertical part one (51) and the vertical part two (53), the vertical part one (51) is inserted into the transmitter (6), the vertical part two (53) abuts against the transmitter (6) from the outside, and the protruding surface of the arc-shaped part (52) abuts against the nozzle rod assembly (1).

3. The adjustable valve stem according to claim 1, characterized in that: The elastic element (5) includes an integrally formed positioning plate one (51'), an arc-shaped part two (52'), and a bending part (53'), wherein the arc-shaped part two (52') is located between the positioning plate one (51') and the bending part (53'), the positioning plate one (51') is fixed inside the transmitter, the bending part (53') does not contact the transmitter (6), and the protruding surface of the arc-shaped part two (52') abuts against the nozzle rod assembly (1).

4. The adjustable valve stem according to claim 1, characterized in that: The elastic element (5) includes an integrally formed positioning plate two (51") and an arc-shaped part three (52"), which together form a "D" shaped structure. The positioning plate two (51") is fixed inside the transmitter (6), and the protruding surface of the arc-shaped part three (52") abuts against the nozzle rod assembly (1).

5. The adjustable valve stem according to claim 1, characterized in that: The nozzle rod (102) has a threaded part one (101) at the head and a threaded part two (103) in the middle, and the tail clamp (104) is rotatably connected to the transmitter (6).

6. The adjustable valve stem according to claim 1, characterized in that: The outer side of the nozzle rod (102) is fitted with a nut (2) and a seal, the seal including a rubber pad (3) and a gasket (4), wherein the nut (2) is threadedly connected to the threaded part (103).

7. The application of an angle-adjustable valve as described in any one of claims 1-6 on automobile wheel hubs.

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