Air valve assembly for tire pressure sensing

Abstract

The application is a kind of air valve assembly for tire pressure sensing, which comprises a seat body with an internal circuit board and a gas pressure chamber communicating with the circuit board, and a connecting part of the seat body with a first flow channel communicating with the gas pressure chamber; an air valve connector with two ends connected with an air valve and the connecting part respectively and with a second flow channel inside, the inner wall of the air valve connector with an internal thread section and the outer wall with a gas guide hole communicating with the second flow channel and the first flow channel; an adapter locked inside the air valve connector with an external thread section locking the internal thread section of the air valve connector, the external thread section and the internal thread section with a gas guide channel communicating with the gas guide hole; when the seat body is locked on the air valve stem through the adapter, part of the gas generated by the air valve flows into the second flow channel, and then flows to the gas guide hole through the gas guide channel, and then flows into the first flow channel through the gas guide hole, and then flows into the gas pressure chamber through the first flow channel, so as to provide the circuit board with the gas state of the gas pressure chamber for sensing.

Description

Technical Field

[0001] This invention relates to the technical field of tire pressure sensing, and more particularly to a valve assembly for tire pressure sensing. Background Technology

[0002] Currently, there are two main assembly methods for bicycle tire pressure monitoring systems (TPMS). One method involves directly locking the TPMS to the top of the valve stem. However, this method has the disadvantage of placing the TPMS too high, affecting aesthetics. The other method connects the sensor through holes in the valve stem wall. However, this method has the disadvantages of requiring too many replacement parts, being cumbersome to assemble, and having poor airtightness. Therefore, improving upon the shortcomings of the above-mentioned bicycle tire pressure monitoring system assembly methods is one of the primary challenges of this invention. Summary of the Invention

[0003] The main objective of this invention is to provide a tire pressure sensor valve assembly that is not directly installed on the top of the valve stem, thus not increasing the installation height and eliminating the need for additional manufacturing of the valve stem itself.

[0004] To achieve the above objectives and effects, the present invention provides a valve assembly for tire pressure sensing, which is installed on the valve stem of a tire and includes: a seat having a connecting portion protruding from one side of the seat, the seat having a circuit board and a pressure chamber communicating with the circuit board inside, the connecting portion having a first flow channel communicating with the pressure chamber; and a valve connector having a valve and the connecting portion of the seat respectively connected at both ends and having a second flow channel inside, the valve connector having an internal thread section on its inner wall and an air guide hole on its outer wall, the air guide hole communicating with the second flow channel and the first flow channel respectively. The adapter is locked inside the air nozzle connector and has an external thread section on its outer wall corresponding to the internal thread section of the air nozzle connector. There is a guide flow channel between the external thread section and the internal thread section that communicates with the air guide hole. The seat is locked on the air nozzle valve stem through the adapter, so that part of the gas generated by the air nozzle flows into the second flow channel, and flows to the air guide hole through the guide flow channel, flows into the first flow channel through the air guide hole, and finally flows into the air pressure chamber through the first flow channel, so that the circuit board communicating with the air pressure chamber can sense the gas state of the air pressure chamber.

[0005] The air pressure chamber of the seat is connected to the first flow channel by a guide hole.

[0006] The base is composed of a first base and a second base. The first base and the second base have corresponding first positioning parts and second positioning parts respectively. The circuit board is positioned between the first positioning part and the second positioning part.

[0007] The first base has a locking hole that penetrates the interior of the base body, and the second positioning part and the circuit board have a first through hole and a second through hole corresponding to the locking hole, respectively.

[0008] The valve stem and the adapter are respectively provided with a first locking section and a second locking section at their corresponding locking positions.

[0009] The adapter and the valve stem have a connecting channel and a valve channel respectively. The connecting channel is connected to the second flow channel, so that the gas from the valve can flow through the second flow channel to the connecting channel and then into the tire through the valve channel.

[0010] The first base has a locking member corresponding to the locking hole. When the air valve stem passes through the locking hole, the second through hole and the first through hole into the body and is locked to the adapter, the locking member locks the air valve stem to the locking hole, so that the air valve stem and the body are mutually locked. Attached Figure Description

[0011] Figure 1 This is an exploded perspective view of the present invention.

[0012] Figure 2 This is a three-dimensional composite diagram of the present invention.

[0013] Figure 3 For the present invention Figure 2 Cross-sectional view of an embodiment.

[0014] Figure 4 For the present invention Figure 3 A cross-sectional diagram of the gas flow direction.

[0015] Figure 5 This is a schematic diagram of the wheel rim of the present invention mounted on a tire.

[0016] Explanation of markings in the diagram: Air valve stem: 1; First locking section: 10; Air valve passage: 11; Base: 2; Assembly section: 20; Circuit board: 21; Second perforation: 210; Air pressure chamber: 22; First flow channel: 23; Guide hole: 24; First base: 25; First positioning section: 250; Locking hole: 251; Lock component: 252; Second base: 26; Second positioning section: 260; First perforation: 261; Air valve connector: 3; Second flow channel: 30; Internal thread section: 31; Vent hole: 32; Air valve: 4; Adapters: 5; External thread section: 50; Second locking section: 51; Adapter channel: 52; Airflow channels: 6; Air valve assembly: 7; Tires: 8; Wheel rim: 80. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0018] Please see Figures 1 to 5 As shown, the present invention is a valve assembly for tire pressure sensing, comprising: The valve stem 1 is mounted on the rim 80 of the bicycle tire 8. The valve stem 1 has a first locking section 10 on its outer surface and a valve passage 11 inside.

[0019] The base 2 has a connecting portion 20 protruding from one side of the base 2. Inside the base 2 is a circuit board 21 and a pneumatic chamber 22 communicating with the circuit board 21. The connecting portion 20 also has a first flow channel 23 communicating with the pneumatic chamber 22, and a guide hole 24 connects the pneumatic chamber 22 and the first flow channel 23. Furthermore, the base 2 is assembled from a first base 25 and a second base 26. The first base 25 and the second base 26 each have a corresponding first positioning portion 250 and a second positioning portion 260, which position the circuit board 21 within them. Furthermore, the first base 25 has a locking hole 251 that penetrates the interior of the seat body 2, the second positioning part 260 and the circuit board 21 respectively have a first through hole 261 and a second through hole 210 corresponding to the locking hole 251, and the first base 25 is further provided with a locking member 252 at the position corresponding to the locking hole 251. When the air valve rod 1 is locked into the interior of the seat body 2, the air valve rod 1 is locked in the position of the locking hole 251 by the locking member 252, so that the air valve rod 1 and the seat body 2 are mutually locked together.

[0020] The air nozzle connector 3 has an air nozzle 4 and a seat 20 connected at both ends, and has a second flow channel 30 inside. The inner wall of the air nozzle connector 3 has an internal thread section 31 and the outer wall has an air guide hole 32, which is connected to the second flow channel 30 and the first flow channel 23 respectively.

[0021] The adapter 5 is locked inside the air nozzle connector 3 and has an external thread section 50 on its outer wall that corresponds to the internal thread section 31 of the air nozzle connector 3. The adapter 5 has a second locking section 51 locked to the first locking section 10 of the air nozzle valve stem 1, and the adapter 5 has an adapter channel 52 that communicates with the air nozzle channel 11 of the air nozzle valve stem 1.

[0022] In assembly, when the adapter 5 is locked onto the internal thread section 31 of the valve connector 3 via the external thread section 50, a flow channel 6 communicating with the air guide hole 32 is formed between the external thread section 50 of the adapter 5 and the internal thread section 31 of the valve connector 3. The valve stem 1 is sequentially inserted into the seat body 2 through the locking hole 251, the second through hole 210, and the first through hole 261, and the valve stem 1 is locked onto the second locking section 51 of the adapter 5 via the first locking section 10. Accordingly, the seat body 2 is locked onto the rim 80 of the tire 8, and the air from the valve 4 flows from the second flow channel 30 of the valve connector 3 to the adapter channel 52 of the adapter 5, and then flows into the bicycle tire 82 through the valve channel 11 of the valve stem 1, achieving the tire inflation effect.

[0023] In practice, the valve assembly 7 of the present invention can not only lock the seat 2 and the valve stem 1 together via the adapter 5, but also adjust the height of the seat 2 on the valve 4 through the relative locking stroke of the seat 2, adapter 5 and valve stem 1, so that the valve assembly 7 can be installed on the rim 80 of different tires 8. Furthermore, the gas in the valve 4 portion can flow from the second flow channel 30 through the air guide channel 6 to the air guide hole 32, then into the first flow channel 23 through the air guide hole 32, and finally flow into the pressure chamber 22 through the first flow channel 23, allowing the circuit board 21 communicating with the pressure chamber 22 to sense the gas state of the pressure chamber 22. In this embodiment, the gas in the first flow channel 23 is more smoothly guided to the pressure chamber 22 through the guide hole 24, avoiding gas blockage.

[0024] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of this application. The embodiments described above are merely preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention, or reasonable combinations of features and solutions of various embodiments, are all within the protection scope of the present invention.

Claims

1. A valve assembly for tire pressure sensing, mounted on the valve stem of a tire, characterized in that, include: The base has a connecting part protruding from one side of the base, and the base is provided with a circuit board and a pneumatic chamber communicating with the circuit board. The connecting part has a first flow channel communicating with the pneumatic chamber. The air nozzle connector has an air nozzle and a seat body assembly at both ends, and has a second flow channel inside. The inner wall of the air nozzle connector has an internal thread section and the outer wall has an air guide hole. The air guide hole is connected to the second flow channel and the first flow channel respectively. The adapter is locked inside the air nozzle connector and has an external thread section on its outer wall that corresponds to the internal thread section of the air nozzle connector. There is a guide air passage between the external thread section and the internal thread section that communicates with the air guide hole. When the seat is locked to the valve stem of the air nozzle via the adapter, part of the gas generated by the air nozzle flows into the second flow channel, and then flows to the air guide hole via the air guide channel, flows into the first flow channel through the air guide hole, and finally flows into the air pressure chamber via the first flow channel, so that the circuit board communicating with the air pressure chamber can sense the gas state of the air pressure chamber.

2. The valve assembly for tire pressure sensing as described in claim 1, characterized in that, The air pressure chamber of the seat is connected to the first flow channel by a guide hole.

3. The valve assembly for tire pressure sensing as described in claim 1, characterized in that, The base is composed of a first base and a second base. The first base and the second base have corresponding first positioning parts and second positioning parts respectively. The circuit board is positioned between the first positioning part and the second positioning part.

4. The valve assembly for tire pressure sensing as described in claim 3, characterized in that, The first base has a locking hole that penetrates the interior of the base body, and the second positioning part and the circuit board have a first through hole and a second through hole corresponding to the locking hole, respectively.

5. The valve assembly for tire pressure sensing as described in claim 4, characterized in that, The first base has a locking member at the position corresponding to the locking hole. When the air valve rod passes through the locking hole, the second through hole and the first through hole into the interior of the base and is locked to the adapter, the locking member locks the air valve rod to the locking hole, so that the air valve rod and the base are mutually locked together.

6. The valve assembly for tire pressure sensing as described in claim 1, characterized in that, The valve stem and the adapter are respectively provided with a first locking section and a second locking section at their corresponding locking positions.

7. The valve assembly for tire pressure sensing as described in claim 1, characterized in that, The adapter and the valve stem have a connecting adapter channel and a valve channel, respectively. The adapter channel is connected to the second flow channel, so that the gas from the valve can flow through the second flow channel to the adapter channel and then flow into the tire through the valve channel.

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