Tire pressure sensor

Abstract

The utility model relates to the technical field of tire pressure monitoring, and discloses a tire pressure sensor which comprises a detection box and a detection cover detachably mounted at an opening of the detection box, when the detection box and the detection cover are closed, a detection cavity is formed, a detection element used for detecting tire pressure is mounted in the detection cavity, and the detection element is connected with the detection box. A detection head communicated with the interior of the detection chamber is mounted outside the detection box; an inflation head communicated with the interior of the detection cavity is further installed outside the detection box, an air inlet assembly is installed in the inflation head, and a monomial sealing assembly used for blocking is installed in the air inlet assembly. An inflation head is arranged on a detection box, and an air inlet assembly and a monomial sealing assembly are mounted in the inflation head; through the cooperation of the air inlet assembly and the monomial sealing assembly, the interior of the tire can be inflated, the tire pressure sensor does not need to be disassembled, the operation procedures of workers are reduced, and convenience is brought to the workers.

Description

TECHNICAL FIELD

[0001] The utility model relates to tire pressure monitoring technical field, concretely is a kind of tire pressure sensor. BACKGROUND

[0002] Automobile tire is the important component of automobile, it has vital role to guarantee the safe driving of automobile.And tire pressure has greater influence on vehicle condition, has the key influence on driving safety.Tire needs to have normal tire pressure to make vehicle smooth driving, too high or too low tire pressure can all lead to tire burst or tire breakage, seriously affect the stability of vehicle driving and threaten the safety of life and property of passerby.

[0003] Traditional tire pressure sensor usually only has tire pressure monitoring function, if detecting tire pressure abnormality, still need to disassemble tire pressure sensor, and make corresponding processing, the operation process of this kind is more frequent, therefore, bring inconvenience to staff.

[0004] Therefore, we propose a kind of tire pressure sensor to solve the problems raised in the above. INVENTION CONTENTS

[0005] The utility model aims at solving the technical problem raised in the above.

[0006] To achieve the above object, the utility model adopts the following technical scheme: a kind of tire pressure sensor, including detection box and the detection cover of detachable installation at the opening of detection box, when the detection box and detection cover close, form a detection chamber, and the inside of detection chamber is installed with the detection element for detecting tire pressure, the outside of the detection box is installed with the detection head that is communicated with the inside of detection chamber;The outside of the detection box is also installed with the inflation head that is communicated with the inside of detection chamber, the inside of the inflation head is installed with air inlet assembly, the inside of air inlet assembly is installed with the single formula sealing assembly for plugging.

[0007] Further: the detection element includes circuit board installed in detection chamber, the circuit board is respectively installed with downwardly arranged tire pressure sensor, microprocessor and bluetooth module, the output end of the tire pressure sensor is electrically connected with microprocessor by wire, and microprocessor is electrically connected with bluetooth module by wire.

[0008] Further: button cell is installed above the circuit board, and button cell is electrically connected with tire pressure sensor, microprocessor and bluetooth module respectively.

[0009] Further: the inner side wall of the detection box is fixed with first annular protrusion equidistantly along circumferential direction, and the circuit board is connected with the threaded hole on the first annular protrusion by a plurality of bolts.

[0010] Further: the air inlet assembly includes an air inlet cylinder located in the air head, one end of the air inlet cylinder is connected with the inner side wall of the air head through an annular fixing plate, air inlets are respectively arranged on the air inlet cylinder and the annular fixing plate, and the other end of the air inlet cylinder is provided with an inwardly recessed limiting cylinder, and one end of the limiting cylinder is also fixedly connected with the inner side wall of the air head.

[0011] Further: the single-seal assembly comprises an annular mounting plate fixed to the inner side wall of the air inlet cylinder and a compression spring fixed to the inner side wall of the annular mounting plate, and one end of the compression spring abuts against a sealing ball slidingly mounted in the air inlet cylinder.

[0012] Further: the detection head and the air head are respectively provided with a threaded mounting sleeve, the inner side wall of the threaded mounting sleeve is fixed with a limiting ring, the detection head and the air head are respectively provided with the limiting ring, and the outer surfaces of the detection head and the air head are respectively fixed with a second annular protrusion used in cooperation with the limiting ring.

[0013] Further: the detection head is internally provided with a mounting disc, the outer surface of the mounting disc is fixed with a plurality of fixed rods fixedly connected with the inner side wall of the detection head at equal intervals in the circumferential direction, and one side of the mounting disc is further provided with a deflation needle.

[0014] The tire pressure sensor has the advantages that:

[0015] The tire pressure sensor has the advantages that: the air head and the air inlet assembly and the single-seal assembly are arranged in the detection box, the tire is inflated through cooperation of the air inlet assembly and the single-seal assembly, the tire pressure sensor does not need to be disassembled, the operation process of the staff is reduced, and the staff is facilitated.

[0016] The threaded mounting sleeve is arranged on the detection head, the tire pressure sensor can be directly fixed through the threaded mounting sleeve, the entire tire pressure sensor does not need to be rotated, and the situation that the detection box cannot be rotated due to a small position of the automobile tire is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic view of the three-dimensional structure of the utility model;

[0018] Figure 2 is a schematic view of the internal structure of the detection box in the utility model;

[0019] Figure 3 is a schematic view of the explosion structure of the utility model;

[0020] Figure 4 is a schematic view of the cross-sectional structure of the explosion of the air head and the threaded mounting sleeve in the utility model;

[0021] Figure 5 is the cross section structure schematic view of the air inlet assembly in the utility model;

[0022] Figure 6 is the explosion structure schematic view of the detection head and the deflation needle in the utility model.

[0023] The names corresponding to the marks in the figure are as follows:

[0024] 1, detection box; 2, detection cover; 3, detection chamber; 4, detection element; 41, circuit board; 42, tire pressure sensor; 43, microprocessor; 44, Bluetooth module; 45, button cell; 5, detection head; 6, inflation head; 7, air inlet assembly; 71, air inlet cylinder; 72, annular fixing plate; 73, air inlet; 74, limiting cylinder; 8, single-seal assembly; 81, annular mounting plate; 82, compression spring; 83, sealing ball; 9, first annular protrusion; 10, threaded mounting sleeve; 11, limiting ring; 12, second annular protrusion; 13, mounting disc; 14, fixing rod; 15, deflation needle. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art belong to the scope of protection of the utility model.

[0026] A tire pressure sensor comprises a detection box 1, a sealing cover 2 is threadedly mounted at the opening of the top of the detection box 1, when the sealing cover 2 and the detection box 1 are closed, the inside of the detection box 1 and the sealing cover 2 forms a sealed detection chamber 3, the detection chamber 3 is used for detecting tire pressure; a detection element 4 is installed inside the detection chamber 3, through the arrangement of the detection element 4, the function of monitoring tire pressure is achieved; a detection head 5 and an inflation head 6 are respectively installed on the outer surface of the detection box 1, it is to be noted that the detection head 5 and the inflation head 6 are respectively in communication with the inside of the detection chamber, through the arrangement of the detection head 5, the detection box 1 and the sealing cover 2 can be installed at the air valve of the tire of the automobile (neither the tire nor the air valve is shown): through the arrangement of the inflation head 6, the tire of the automobile can be inflated through the detection box 1 and the sealing cover 2, without disassembling the detection box 1 and the sealing cover 2, the process of the operation of the staff is reduced, and convenience is provided for the staff.

[0027] In detail: the detection element 4 includes a circuit board 41, the inner side wall of the detection box 1 is fixed with a first annular protrusion 9, and a plurality of threaded holes (not shown in the figure) are formed in the first annular protrusion 9. After the circuit board 41 is placed on the upper part of the first annular protrusion 9, the bolts are screwed through the circuit board 41 and the threaded holes to fasten the circuit board 41, preventing the circuit board 41 from shaking during use. The circuit board 41 is installed with a tire pressure sensor 42, a microprocessor 43 and a Bluetooth module 44 arranged downward, and the tire pressure sensor 42 is connected with the microprocessor 43 through wires. The tire pressure sensor 42 is used to detect the air pressure of the tire. The microprocessor 43 is electrically connected with the Bluetooth module 44 through wires. The Bluetooth module 44 is used for wireless transmission. The Bluetooth module 44 can be connected with the user's mobile phone or car through Bluetooth. When the tire pressure is abnormal, the user can be notified in time, and appropriate measures can be taken to prevent safety hazards during driving. It should be noted that the inside of the sealing cover 2 is installed with a button cell 45, and the button cell 45 is electrically connected with the tire pressure sensor 42, the microprocessor 43 and the Bluetooth module 44 respectively. The button cell 45 is used for power supply to ensure the normal operation of the detection element 4.

[0028] The inside of the inflation head 6 is installed with an air inlet assembly 7. When the tire is inflated, the air inlet assembly 7 can inflate the tire. The air inlet assembly 7 is also installed with a single seal assembly 8. The single seal assembly 8 is used for sealing to prevent the tire from leaking.

[0029] In detail: the air inlet assembly 7 includes an air inlet cylinder 71 installed in the inflation head 6. The air inlet cylinder 71 is coaxially arranged with the inflation head 6. It should be noted that the outer side wall of the air inlet cylinder 71 and the inner side wall of the inflation head 6 have a certain gap. One end of the air inlet cylinder 71 is fixed with a ring-shaped fixed plate 72, and the ring-shaped fixed plate 72 is fixedly connected with the inner side wall of the inflation head 6. A plurality of air inlets 73 are equidistantly formed on the air inlet cylinder 71 and the ring-shaped fixed plate 72 along the circumferential direction. After the gas enters the inside of the air inlet cylinder 71, it successively passes through the air inlets on the air inlet cylinder 71, the gap between the air inlet cylinder 71 and the inner side wall of the inflation head 6, and the air inlets on the ring-shaped fixed plate 72 to enter the inside of the detection chamber. The other end of the air inlet cylinder 71 is fixed with a limit cylinder 74 recessed inward. The limit cylinder 74 is used for sealing the single seal assembly 8. One end of the limit cylinder 74 is fixedly connected with the inner side wall of the inflation head 6 to reinforce the air inlet cylinder 71.

[0030] In detail: single formula sealing assembly 8 includes fixed in the intake cylinder 71 inside wall annular mounting plate 81, and one side of annular mounting plate 81 is fixed with compression spring 82, and one end of compression spring 82 is in contact with sealing ball 83 slidingly installed in the intake cylinder 71; if sealing ball 83 is in contact with the inner side wall of the limiting cylinder 74, it plays a role in sealing the inflation head 6, preventing the phenomenon of air leakage.

[0031] The detection head 5 and the inflation head 6 are respectively sleeved with threaded mounting sleeves 10. Through the setting of the threaded mounting sleeves 10, if the tire pressure sensor is assembled, the tire pressure sensor is directly fastened through the threaded mounting sleeves 10, preventing the detection cover 2 from being fastened towards the direction of the wheel, facilitating the subsequent disassembly of the detection cover 2; in detail: the threaded mounting sleeve 10 is fixed with a limiting ring 11 close to the inner side wall of the detection box 1, and the outer surfaces of the detection head 5 and the inflation head 6 are respectively fixed with second annular protrusions 12, which cooperate with the limiting ring 11 and the second annular protrusions 12 to limit the threaded mounting sleeve 10, preventing the threaded mounting sleeve 10 from falling off the detection head 5 or the inflation head 6. The limiting ring 11 and the second annular protrusions 12 are respectively provided with rubber rings (not shown in the figure), which play a sealing role and reduce the occurrence of air leakage.

[0032] The inside of the detection head 5 is provided with a mounting disc 13, and a plurality of fixed rods 14 are fixedly arranged on the outer surface of the mounting disc 13 in a circumferential direction, and the plurality of fixed rods 14 are fixed to the inner side wall of the detection head 5. A deflation needle 15 is further fixed to one side of the mounting disc 13. Through the setting of the deflation needle 15, pressure can be applied to the valve stem, so that the pressure in the tire can be released into the detection chamber 3.

[0033] When the tire pressure sensor is installed, first, one end of the detection head 5 corresponds to the valve stem of the wheel, and the threaded mounting sleeve 10 on the detection head 5 is rotated backward, and the threaded mounting sleeve 10 can be fastened with the valve stem of the wheel; thereby completing the installation of the tire pressure sensor; during the fastening process of the detection head 5, the mounting disc 13 can be moved, so that the mounting disc 13 can drive the deflation needle 15 to move, and the deflation needle 15 can press the valve stem, so that the gas in the tire can be released into the detection chamber for detection.

[0034] When the tire pressure of the automobile is abnormal, the tire pressure sensor 42 can detect it, and the tire pressure sensor 42 can transmit information to the microprocessor 43, and the microprocessor 43 can transmit to the intelligent terminal through the Bluetooth module 44, so as to timely inform the user and take corresponding measures to avoid safety hazards during driving.

[0035] If it is to inflate the tire pressure: first connect the inflation device with the inflation head 6 (inflation device with the inflation head 6 fixed way and detection head 5 with the valve fixed way, not in detail) ; inflation device inflation, pressure continues to increase and extrusion of the sealing ball 83, 83 under the extrusion of the compression spring 82, then the air pressure in turn through the intake cylinder 71 on the intake port 73, intake cylinder 71 and the inside wall of the inflation head 6 gap, annular fixed plate 72 on the intake port 73, detection chamber 3 and detection head 5 and enter the tire of the car, thus completing the work of inflation; after the Swiss inflation device is disassembled, the compression spring 82 loses the extrusion force and pushes the sealing ball 83 to move, the outer surface of the sealing ball 83 is in contact with the inner wall of the limiting cylinder 74, thereby playing a sealing role.

Claims

1. A tire pressure sensor, comprising a detection box (1) and a detection cover (2) detachably mounted at an opening of the detection box (1), the detection box (1) and the detection cover (2) being closed to form a detection chamber (3), and a detection element (4) for detecting tire pressure being mounted inside the detection chamber (3), and a detection head (5) in communication with the inside of the detection chamber (3) being mounted on the outside of the detection box (1); characterized in that: The detection box (1) is additionally provided with an inflation head (6) in communication with the detection chamber (3), and the inflation head (6) is internally provided with an air inlet assembly (7), and the air inlet assembly (7) is internally provided with a single-element sealing assembly (8) for plugging.

2. The tire pressure sensor of claim 1, wherein: The detection element (4) comprises a circuit board (41) installed in the detection chamber (3), and the circuit board (41) is respectively provided with a downwardly arranged tire pressure sensor (42), a microprocessor (43) and a Bluetooth module (44); the output end of the tire pressure sensor (42) is electrically connected to the microprocessor (43) through a wire, and the microprocessor (43) is electrically connected to the Bluetooth module (44) through a wire.

3. A tire pressure sensor according to claim 2, wherein: A button cell (45) is arranged above the circuit board (41) and is electrically connected to the tire pressure sensor (42), the microprocessor (43) and the Bluetooth module (44).

4. A tire pressure sensor according to claim 3, wherein: The inner side wall of the detection box (1) is fixed with a first annular protrusion (9) at equal intervals in the circumferential direction, and the circuit board (41) is threadedly connected to the threaded hole in the first annular protrusion (9) through a plurality of bolts.

5. A tire pressure sensor according to claim 4, wherein: The air inlet assembly (7) comprises an air inlet cylinder (71) in the inflation head (6), one end of the air inlet cylinder (71) is connected to the inner side wall of the inflation head (6) through an annular fixing plate (72), an air inlet (73) is formed in the air inlet cylinder (71) and the annular fixing plate (72), respectively, the other end of the air inlet cylinder (71) is provided with an inwardly recessed limiting cylinder (74), and one end of the limiting cylinder (74) is also fixedly connected to the inner side wall of the inflation head (6).

6. A tire pressure sensor according to claim 5, wherein: The single-element sealing assembly (8) comprises an annular mounting plate (81) fixed to the inner side wall of the air inlet cylinder (71) and a compression spring (82) fixed to the inner side wall of the annular mounting plate (81), and one end of the compression spring (82) abuts against a sealing ball (83) slidingly installed in the air inlet cylinder (71).

7. A tire pressure sensor according to claim 6, wherein: The detection head (5) and the inflation head (6) are respectively provided with a threaded mounting sleeve (10), the inner side wall of the threaded mounting sleeve (10) is fixed with a limiting ring (11), and the outer surface of the detection head (5) and the inflation head (6) is respectively fixed with a second annular protrusion (12) matched with the limiting ring (11).

8. A tire pressure sensor according to claim 7, wherein: The detection head (5) is internally provided with a mounting disc (13), the outer surface of the mounting disc (13) is fixed with a plurality of fixed rods (14) fixedly connected to the inner side wall of the detection head (5) at equal intervals in the circumferential direction, and one side of the mounting disc (13) is further provided with a deflation needle (15).

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