A TPMS-equipped snap-on valve

Abstract

This utility model discloses a snap-on valve stem with TPMS, belonging to the field of automotive technology. It includes a valve stem body with a first protrusion at one end. A TPMS transmitter is connected to the side of the first protrusion away from the valve stem body. The valve stem body has an inner through-hole that passes through the first protrusion, and a valve core is disposed within the inner through-hole. The valve stem body near the first protrusion is covered with a rubber coating. The rubber coating near the first protrusion has a rubber-coated protrusion, and the end of the rubber-coated protrusion away from the first protrusion has an annular groove that can mate with a wheel rim mounting hole. The valve stem, through the annular groove, receives pressure from the rubber-coated protrusion, which provides support from the first protrusion. This utility model ensures that the snap-on position of the rubber coating is supported by the internal metal body, guaranteeing the stability of the snap-on engagement with the wheel rim mounting hole.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, specifically to a snap-on valve stem with TPMS. Background Technology

[0002] As consumers pay more attention to driving safety, tire pressure monitoring systems are becoming increasingly popular in passenger cars. By installing a TPMS (Tire Pressure Monitoring System), the tire pressure can be automatically detected in real time while the vehicle is in motion, and alarms can be triggered for tire leaks and low pressure to ensure driving safety.

[0003] The current mainstream tire pressure monitoring solution involves mounting the TPMS transmitter to the end of a snap-on valve stem, which is then fixed to the wheel rim, allowing for quick installation. However, this solution has limitations; the valve stem is prone to loosening or detachment, requiring improvement.

[0004] To address the aforementioned problems, this invention designs and manufactures a snap-on valve with TPMS to overcome the aforementioned defects. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a snap-on valve stem with TPMS, which enables the rubber-coated snap-on position to be supported by the internal metal body, ensuring the stability of the snap-on part and the wheel rim mounting hole.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a snap-on valve with TPMS, comprising a valve body, wherein a first protrusion is provided at one end of the valve body, and a TMPS transmitter is connected to the side of the first protrusion away from the valve body. The valve body has an inner through hole, which penetrates the first boss, and a valve core is provided in the inner through hole; The valve body near the first boss is covered with rubber. The rubber-coated boss is located near the first boss. The end of the rubber-coated boss away from the first boss is provided with an annular groove. The annular groove can cooperate with the wheel rim mounting hole. The valve is supported by the first boss by the pressure transmitted to the rubber-coated boss through the annular groove.

[0007] Preferably, the outer diameter of the first boss is larger than the diameter of the annular groove; And / or, the outer diameter of the first boss is at least 0.5 mm larger than the diameter of the annular groove, and does not exceed the outer diameter of the rubber-coated boss.

[0008] Preferably, the sidewall of the annular groove near the second protrusion gradually concave from the outside to the inside.

[0009] Preferably, the other end of the valve body is provided with a second protrusion, and the rubber coating is snapped between the first protrusion and the second protrusion and covers the valve body.

[0010] Preferably, the inner through hole extends through the second boss, and a protective cap is connected to the outside of the second boss to cover the inner through hole.

[0011] Preferably, the first boss has an arc-shaped protrusion at the end away from the valve stem body, and the arc-shaped protrusion has a mounting hole; The TMPS transmitter is fixed in place by mounting screws after the inner arc mounting surface mates with the arc protrusion.

[0012] Preferably, the first boss has a ventilation channel on its side that communicates with the inner through hole.

[0013] Preferably, the first boss is detachably connected to the valve body.

[0014] Preferably, the valve body has a mating hole at the end of the inner through hole, the diameter of the mating hole being larger than the diameter of the inner through hole, and the first boss has a mating tube on the side near the valve body, the mating tube being screwed into the mating hole.

[0015] Preferably, the valve body is made of copper and the overlay is made of rubber.

[0016] The advantages of this utility model are: 1. This utility model utilizes the first boss to ensure that the rubber coating is covered on the valve stem body, so that the rubber coating of the annular groove near the first boss is supported by the internal valve stem body, which improves the stability of the fit between the annular groove and the wheel rim mounting hole, and avoids the problem of insufficient support and excessive deformation of the rubber coating at the annular groove in the past.

[0017] 2. The first boss of this utility model can provide axial support for the rubber coating of the annular groove. When the valve stem is subjected to internal pressure, the first boss presses the rubber coating at the annular groove as a whole, so that the rubber coating at the annular groove deforms evenly to bear the pressure. This avoids the problems of loosening and falling off caused by the lack of the first boss at the annular groove rubber coating, excessive deformation, and cutting and wear of the rubber coating by the wheel rim mounting hole in the past. Moreover, when the valve stem is subjected to internal pressure, the first boss will make the rubber coating boss bear uniform circumferential pressure at the wheel rim mounting hole, which will also prevent the valve stem from rotating circumferentially.

[0018] 3. The adhesive is secured between the first and second protrusions of this utility model. The two protrusions ensure the stability of the adhesive and prevent the adhesive from moving or falling off.

[0019] 4. The side wall of the annular groove of this utility model gradually concaves from the outside to the inside to form a sealing contact surface. When it comes into contact with the rim, the deformation is large, the contact is tighter, and the sealing effect is better.

[0020] 5. This utility model avoids contact between the metal valve body and the rim by having the annular groove rubber-coated position contact the rim mounting hole. After the TMPS is installed, it will not interfere with the tire pressure monitoring signal, and will automatically detect tire pressure in real time and alarm for tire leaks and low pressure. The system has good stability. Attached Figure Description

[0021] Figure 1 A cross-sectional view of a snap-on valve stem with TPMS; Figure 2 This is a schematic diagram of a snap-on valve stem with TPMS. Figure 3 This is a schematic diagram of a portion of the structure of this utility model; Figure 4 This is a cross-sectional view showing the detachable connection between the first boss and the valve body of this utility model. Figure 5 This is a schematic diagram showing the fit between the annular groove and the rim mounting hole of this utility model.

[0022] In the diagram: 1. Valve body; 2. Inner through hole; 3. Rubber coating; 4. Annular groove; 5. Rubber-coated boss; 6. First boss; 7. Arc-shaped protrusion; 8. TMPS transmitter; 9. Mounting hole; 10. Vent; 11. Second boss; 12. Protective cap; 13. Valve core; 14. Fitting tube; 15. Wheel rim. Detailed Implementation

[0023] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0024] like Figures 1 to 3 As shown, a snap-on valve with TPMS includes a valve body 1. The valve body 1 can be made of materials such as copper or aluminum, with copper being preferred. One end of the valve body 1 is provided with a first protrusion 6. The side of the first protrusion 6 away from the valve body 1 is connected to a TMPS transmitter 8. That is, the first protrusion 6 is provided at the end near the TMPS transmitter 8, while the existing technology does not provide a corresponding structure at this position.

[0025] The valve body 1 of this utility model has an inner through hole 2, which passes through the first protrusion 6. The valve core 13 is provided in the inner through hole 2. The valve core 13 and the inner through hole 2 are used to seal and inject gas into the tire. The valve body 1 near the first boss 6 is covered with a rubber coating 3. The rubber coating 3 is made of rubber material. A rubber-coated boss 5 is provided near the first boss 6. An annular groove 4 is provided at the end of the rubber-coated boss 5 away from the first boss 6. The bottom of the annular groove 4 is also covered with rubber 3. The annular groove 4 can mate with the rim mounting hole 9. The valve body is supported by the first boss 6 by the pressure transmitted from the valve body to the rubber-coated boss 5 through the annular groove 4. The outer diameter of the first boss 6 is larger than the diameter of the annular groove 4. Specifically, the outer diameter of the first boss 6 is preferably at least 0.5 mm larger than the diameter of the annular groove 4, but does not exceed the outer diameter of the rubber-coated boss 5. This is to ensure that the first boss 6 supports the rubber-coated boss 5. The dimensional relationship between the first boss 6 and the rubber-coated boss 5 is not specifically limited, but the outer diameter of the first boss 6 preferably does not exceed the outer diameter of the rubber-coated boss 5.

[0026] This utility model uses the annular groove 4 with rubber coating 3 to contact the rim mounting hole 9, avoiding contact between the metal valve body 1 and the rim 15. After installing the TMPS transmitter 8, it will not interfere with the tire pressure monitoring signal, automatically detects tire pressure in real time, and alarms for tire leaks and low pressure. The system has good stability.

[0027] The first protrusion 6 of this utility model ensures that the rubber coating 3 covers the valve body 1, so that the rubber coating 3 of the annular groove 4 near the first protrusion 6 is supported by the internal valve body 1, which improves the stability of the fit between the annular groove 4 and the wheel rim mounting hole 9, and avoids the problem of insufficient support and excessive deformation of the rubber coating 3 at the annular groove 4 in the past.

[0028] Furthermore, the first boss 6 can support the axial direction of the rubber coating 3 in the annular groove 4. When the valve stem is subjected to internal pressure, the first boss 6 presses the rubber coating 3 in the annular groove 4 as a whole, so that the rubber coating 3 in the annular groove 4 deforms evenly to bear the pressure. This avoids the problems of loosening and falling off caused by the lack of the first boss 6 in the previous annular groove 4 rubber coating 3, excessive deformation, and the cutting and wear of the rubber coating 3 by the wheel rim mounting hole 9. Moreover, when the valve stem is subjected to internal pressure, the first boss 6 will make the rubber coating boss 5 bear uniform circumferential pressure at the wheel rim mounting hole 9. This will also prevent the circumferential rotation of the valve stem, thereby preventing the rotation of the TMPS transmitter 8.

[0029] To further improve the sealing performance between the valve stem and the rim mounting hole 9, the side wall of the annular groove 4 near the second boss 11 gradually recesses from the outside to the inside to form a sealing contact surface. When it comes into contact with the rim 15, the deformation is large, the contact is tighter, and the sealing effect is better.

[0030] The valve body 1 of this utility model has a second protrusion 11 at the other end. The rubber coating 3 is snapped between the first protrusion 6 and the second protrusion 11 and covers the valve body 1. The two protrusions can ensure the stability of the rubber coating 3 and prevent the rubber coating 3 from moving or falling off.

[0031] The inner through hole 2 also penetrates the second boss 11, and the second boss 11 is connected to a protective cap 12 to cover the inner through hole 2.

[0032] To facilitate the installation of the TMPS transmitter 8, the first boss 6 preferably has an arc-shaped protrusion 7 at the end away from the valve body 1. The arc-shaped protrusion 7 has a mounting hole 9. After the inner arc mounting surface of the TMPS transmitter 8 mates with the arc-shaped protrusion 7, it is fixed by mounting screws. This allows the installation angle of the TMPS transmitter 8 to be adjusted, avoiding interference between the TMPS transmitter 8 and the inner wall of the tire or the rim 15 during installation.

[0033] Since the installation of the TMPS transmitter 8 often obstructs the inner through hole 2, or the mounting hole 9 utilizes the inner through hole 2, the present invention preferably provides a vent 10 communicating with the inner through hole 2 on the side of the first boss 6, so as to facilitate the inner through hole 2 to connect the inside and outside of the tire.

[0034] The first protrusion 6 of this utility model is preferably detachably connected to the valve body 1, so that the first protrusion 6 can be flexibly selected according to the specifications and shape of the TMPS transmitter 8 used, and the existing valve can be reused.

[0035] Specifically, such as Figure 4 , Figure 5 As shown, the valve body 1 has a mating hole at the end of the inner through hole 2, the diameter of which is larger than the diameter of the inner through hole 2. The first boss 6 has a mating tube 14 on the side near the valve body 1, and the mating tube 14 is screwed into the mating hole. Alternatively, an interference fit can be used. The inner diameter of the mating tube 14 is equal to the inner diameter of the inner through hole 2 to avoid the formation of a step that could cause airflow impact.

[0036] Specific installation process of this utility model: The valve body 1, covered with rubber 3, is pulled out from the inside of the rim 15 along the rim mounting hole 9, so that the annular groove 4 fits with the rim mounting hole 9. Then, the valve core 13 is installed through the inner through hole 2 at the second boss 11. After the valve core 13 is installed, the protective cap 12 is installed to cover the inner through hole 2.

[0037] The TMPS transmitter 8 is mounted on the arc-shaped protrusion 7 of the first boss 6 by mounting screws. The angle of the TMPS transmitter 8 can be finely adjusted according to actual use to meet the installation angle requirements.

[0038] The above installation process is only one way to connect this utility model with the rim mounting hole 9. The specific installation sequence is not limited, as long as it can ensure that this utility model is installed on the rim mounting hole 9.

[0039] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A snap-on valve stem with TPMS, characterized in that, Includes a valve body (1), one end of which is provided with a first protrusion (6), and a TMPS transmitter (8) is connected to the side of the first protrusion (6) away from the valve body (1). The valve body (1) is provided with an inner through hole (2), the inner through hole (2) penetrates the first boss (6), and the valve core (13) is provided in the inner through hole (2). The valve body (1) near the first boss (6) is covered with rubber (3). The rubber (3) near the first boss (6) is provided with a rubber boss (5). The rubber boss (5) away from the first boss (6) is provided with an annular groove (4). The annular groove (4) can cooperate with the rim mounting hole (9). The valve is supported by the first boss (6) by the pressure transmitted from the annular groove (4) to the rubber boss (5).

2. A snap-on valve with TPMS according to claim 1, characterized in that, The outer diameter of the first boss (6) is larger than the diameter of the annular groove (4); And / or, the outer diameter of the first boss (6) is at least 0.5 mm larger than the diameter of the annular groove (4), and does not exceed the outer diameter of the rubber-coated boss (5).

3. A snap-on valve with TPMS according to claim 1, characterized in that, The annular groove (4) near the second protrusion (11) has a side wall that gradually becomes concave from the outside to the inside.

4. A snap-on valve with TPMS according to claim 1, characterized in that, The valve body (1) has a second protrusion (11) at the other end, and the rubber coating (3) is engaged between the first protrusion (6) and the second protrusion (11) and covers the valve body (1).

5. A snap-on valve with TPMS according to claim 4, characterized in that, The inner through hole (2) penetrates the second boss (11), and a protective cap (12) is connected to the outside of the second boss (11) to block the inner through hole (2).

6. A snap-on valve with TPMS according to claim 1, characterized in that, The first boss (6) has an arc-shaped protrusion (7) at one end away from the valve body (1), and the arc-shaped protrusion (7) has a mounting hole (9). The inner arc mounting surface of the TMPS transmitter (8) is fixed by mounting screws after it mates with the arc protrusion (7).

7. A snap-on valve with TPMS according to claim 6, characterized in that, The first boss (6) has a ventilation channel (10) on its side that communicates with the inner through hole (2).

8. A snap-on valve with TPMS according to claim 1, characterized in that, The first boss (6) is detachably connected to the valve body (1).

9. A snap-on valve with TPMS according to claim 8, characterized in that, The valve body (1) has a mating hole at the end of the inner through hole (2), the diameter of which is larger than the diameter of the inner through hole (2). The first boss (6) has a mating tube (14) on the side near the valve body (1), and the mating tube (14) is screwed into the mating hole.

10. A snap-on valve with TPMS according to claim 1, characterized in that, The valve body (1) is made of copper, and the coating (3) is made of rubber.

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