TW201902735A - Tire pressure detection device capable of achieving low cost and stepless angle adjustment - Google Patents

Abstract

A tire pressure device comprises a nozzle and a tire pressure detector. The nozzle is extended with an inflating rod at one end, a through hole penetrates laterally through the inflating rod, a pin penetrates through the through hole. The tire pressure detector is configured with a base, an adjusting groove penetrates through the base. The inflating rod of nozzle penetrates through the adjusting groove of the base. The end of the inflating rod penetrating the adjusting groove is connected with a fastener. The base is clamped by the fastener together with the pin, so that the pin may be formed as the positioning axis of the nozzle. The swinging of the end of fastener may be used to adjust the angle relative to the tire pressure detector, such that the rod-like nozzle structure may achieve the stepless angle adjustment function, and thus the tire pressure detector may be stably abutted against the bottom of wheel rim.

Description

 Tire pressure detecting device  

The invention relates to a tire pressure detecting device, in particular to a tire pressure detecting device which has both low cost and no segment adjustment angle.

According to the conventional tire pressure detecting device, the self-powered tire pressure detector of the approved certificate number No. M527394 approved by the Bureau on August 21, 105, wherein the gas nozzle has a relative capacity. The fixing member is detachably connected to the adjusting end portion and is locked to the guiding groove, so that the adjusting end portion is restrictedly moved to the guiding groove, and the guiding groove can have a first clamping plane and a second clamping plane, the adjusting end portion has a first positioning plane and a second positioning plane, and the first clamping plane and the second clamping plane are used for limiting the first positioning plane and the second positioning plane. The slot can have a first receiving arc surface and a second receiving arc surface, and the adjusting end portion can have a first limiting arc surface and a second limiting arc surface, the first receiving arc surface and the second receiving surface The arcing surface is non-parallel, so that the adjusting end portion is displaced between the first accommodating arc surface and the second accommodating arc surface of the guiding groove through the first positioning plane and the second positioning plane, and the conventional structure is not detailed. It is difficult to find that there are still some shortcomings, the main reasons are as follows: the nozzle is the first limit arc or the second The arc surface selection limit is located on the first accommodating arc surface or the second accommodating arc surface of the detector body, thereby forming two fixed angles of the rod-shaped air nozzle, and the relative angle between the air nozzle and the detector body It can only be adjusted to the highest or lowest position, which makes it impossible to adjust effectively with different wheel frame styles. There is a lack of flexibility in assembly. The common rubber type nozzle structure uses a straight rod to connect the detector body. In order to achieve the purpose of adjusting the angle without a segment, it is common to add a spherical body to the fixing member to form a multi-angle clamping, which is high in production cost and difficult to assemble, which is a long-standing existence of the conventional rubber-type air nozzle structure. Technical issues.

A conventional tire pressure detection device, such as the "Tire Pressure Detection Device" approved by the Department of Health, on January 1, 101, which has a noticeable number No. M419917. a circuit, and an arcuate guide groove is formed on the body; and a gas nozzle, wherein one end has a slider, the slider is matched with the arcuate guide groove, and the slider is pivotally connected to the arc in a slidable relationship The guide groove passes through the arcuate guide groove and is fixed in the slider with a fixing member, so that the air nozzle rotates at an angle with respect to the body with a rotating axial direction as an axis. The two limiting surfaces of the arcuate guiding groove respectively have a shaft hole, and the two abutting surfaces of the sliding block respectively have a pivot shaft, and the pivoting shaft is pivotally connected in the shaft hole. Looking at the above-mentioned conventional structure, it is not difficult to find that there are still some shortcomings. The main reasons are as follows: (1) The conventional metal-type air nozzle structure can adjust the fixed angle of the body without a segment, but because of the metal nozzle The material cost is high, many tires will use rubber-type air nozzles in order to reduce the cost, and the rubber-type air nozzles are difficult to achieve the function of adjusting the assembly angle without a section. Therefore, the conventional air nozzle structure cannot have a stepless adjustment angle and (2) The nozzle is placed in the arcuate guide groove of the body by a slider, and is locked to the slider by a fixing member to form a clamping and fixing to the body, the slider is spherical The shape does not have the function of receiving the thrust of the body end, so the reaction force formed by the external force is received by the fixing member (bolt), so when the tire runs on the uneven road surface, the relative vibration of the air nozzle and the body will be easy. The bending damage of the fixing member is caused to reduce the durability; (3) the two limiting surfaces of the curved guiding groove respectively have a shaft hole, and the two resisting surfaces of the sliding block respectively have a pivot axis, The pivoting system is pivotally connected to the In the hole, although the pivot can bear a partial reaction force, the pivot is formed by extending both ends of the slider, and the pivot and the slider are only connected by a circular cross section, that is, the pivot is equivalent It is easy to break from the bottom due to vibration, so that there is a problem of insufficient structural strength.

In view of this, the inventors have been engaged in the manufacturing development and design experience of related products for many years, and after detailed design and careful evaluation of the above objectives, the present invention has finally become practical.

The technical problem to be solved by the present invention is to provide a tire pressure detecting device in view of the above-mentioned shortcomings existing in the prior art.

An inflation rod is extended at one end of the air nozzle, and a through hole is transversely penetrated through the through hole, and a pin is disposed in the through hole. A tire pressure detector is provided with a body, and the seat body has an adjustment slot therein. The air nozzle is disposed in the adjusting groove of the seat body, and a fixing member is coupled to one end of the adjusting rod through the adjusting groove, and the fixing body cooperates with the pin to sandwich the seat body.

Wherein, the inflatable rod is formed with a flat cut surface at the same side of the opening of the through hole, and the inflatable rod is in contact with the inner wall surface of the adjusting groove by the flat cutting surface.

The seat body is formed with a first surface and a second surface at the opening ends of the adjusting groove, and the fixing member is disposed on the first surface, and the latch is disposed on the second surface.

The accommodating groove is recessed in a cross shape with the adjusting groove, and the accommodating groove provides a placing limit of the pin.

The accommodating hole is inserted into the accommodating hole adjacent to the second surface, and the accommodating hole is in a cross-shaped communication with the adjusting groove, and the accommodating hole provides the insertion limit of the pin.

Wherein, the inflating rod has a through hole formed in the axial direction, and the inflating rod has a hole extending through the perforation in the lateral direction, and the pin is formed in a solid shape with a circular cross section, and the inflating rod is formed by subtracting the perforation hole by a rod diameter. The thickness of the pipe wall is such that the pin and the through hole have a first force receiving portion and a second force receiving portion with a circular cross section multiplied by the thickness of the pipe wall.

Wherein, the pin passes through the inflating rod to extend a third force receiving portion and a fourth force receiving portion of the rod body outwardly on both sides, and the inflating rod, the pin and the seat body pass the first, the Secondly, the third and the fourth force receiving portions constitute a four-point stress state, thereby achieving the purpose that the plug is not easily broken and deformed.

The fixing member is a bolt that is axially screwed to the through hole, and the fixing member is sleeved with a gasket, and the gasket is pressed against the first surface of the seat body.

Wherein, the inflatable rod is formed with a threaded portion at an outer periphery of one end of the body, and the fixing member is screwed to the threaded portion, and the fixing member and the first surface of the seat body A gasket is provided between the clamps.

Wherein, the air nozzle has a nozzle head formed at the other end of the inflatable rod, and a cap is locked at the nozzle head.

A first main object of the present invention is that an inflatable rod is extended at one end of the gas nozzle, and a through hole is transversely penetrated through the through hole, and a pin is inserted through the through hole, and the seat body is inserted through an adjusting groove, and the gas is inserted The mouth is inserted into the adjusting groove of the seat body by the inflation rod, and a fixing member is locked at an end of the inflation rod passing through the adjusting groove, so that the inflation rod can be clamped and fixed with the pin fitting fixing member. The seat of the detector has the function of adjusting the relative angle of the nozzle and the tire pressure detector without a segment, and has the practical function of low production cost.

A second main object of the present invention is that the gas nozzle sleeve is provided with a rubber sleeve body, so that the gas nozzle can be assembled on the wheel frame with a rubber sleeve body, which is a rubber nozzle structure, and the gas nozzle is laterally shaped by the inflation rod. The pin is inserted, and the end locking device is used to form the clamping and fixing of the tire pressure detector, so that the rubber nozzle has the function of adjusting the angle of the tire pressure detector without a step, so as to obtain the energy. Practical solution for segment adjustment angle.

A third main object of the present invention is that the gas nozzle completely penetrates the adjustment groove of the seat body by the inflation rod, and is locked into the perforation of the inflation rod by a bolt-shaped fixing member, and the fixing member can lock the perforation and let The inflation rod is solid in the position of the adjusting groove, and completely receives the reaction force generated by the seat body by the inflatable rod, that is, the bending deformation of the fixing member can be avoided, and the air nozzle and the tire pressure detection are improved. The structural strength of the detector combination.

A fourth main object of the present invention is that the plug has a circular cross section formed in a solid shape, and the inflation rod has a tube wall thickness formed by subtracting the perforation aperture from the rod diameter, so that the plug has a circular cross section multiplied by the through hole. a first force receiving portion and a second force receiving portion of the thickness of the pipe wall, and the pin passing through the pinning rod extends a third force receiving portion and a fourth force portion of the rod body outwardly on both sides a portion of the inflating rod, the pin and the base body forming a four-point stress state through the first, second, third and fourth force receiving portions, that is, the through-force area is greatly increased The bonding strength makes the pin less susceptible to deformation or breakage caused by torsion or shearing force.

Other objects, advantages and novel features of the invention will be apparent from the description and appended claims.

 [this creation]  

10‧‧‧ gas nozzle

11‧‧‧Inflatable rod

111‧‧‧through hole

112‧‧‧Perforation

113‧‧‧ stomata

114‧‧‧ flat cut

115‧‧‧Threaded section

12‧‧‧ latch

13‧‧‧ gas mouth

14‧‧‧ Cap

15‧‧‧Fixed parts

151‧‧‧Washers

16‧‧‧section

17‧‧‧Cards

18‧‧‧Rubber cover

181‧‧‧ ring

182‧‧‧ Limit slot

19‧‧‧Metal nuts

20‧‧‧ tire pressure detector

21‧‧‧ body

22‧‧‧Adjustment slot

23‧‧‧ first surface

24‧‧‧ second surface

25‧‧‧ accommodating slots

26‧‧‧ accommodating holes

30‧‧‧ wheel frame

D1‧‧‧Circular section

D2‧‧‧ wall thickness

A1‧‧‧First force part

A2‧‧‧ second force part

A3‧‧‧ third force part

A4‧‧‧ fourth force part

Figure 1 is a perspective view of the present invention.

Figure 2 is a perspective exploded view of the present invention.

Figure 3 is a partial cross-sectional view (1) of the present invention.

Figure 4 is a partial cross-sectional view (2) of the present invention.

Figure 5 is a partial cross-sectional view (3) of the present invention.

Fig. 6 is a schematic view showing the state of use of the present invention (1).

Fig. 7 is a schematic view showing the state of use of the present invention (2).

Figure 8 is a perspective exploded view of another embodiment of the present invention.

Figure 9 is a perspective exploded view of still another embodiment of the present invention.

Figure 10 is a perspective exploded view of still another embodiment of the present invention.

Figure 11 is a cross-sectional view showing still another embodiment of the present invention.

In order to enable your review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following [detailed description of the drawings] as follows: First, please continue from Figure 1 to Figure 5 A tire pressure detecting device includes: a gas nozzle 10 and a tire pressure detector 20. One end of the gas nozzle 10 extends with an inflatable rod 11 made of a metal material, and the inflatable rod 11 is a straight rod. a through hole 111 is defined in the through hole 111 and a through hole 112 is defined in the axial direction, and a through hole 113 is formed in the horizontal direction, that is, the through hole 111, the through hole 112 and the air hole 113 are in communication with each other. A through hole 12 is disposed in the through hole 111, and both ends of the plug 12 are exposed on both sides of the inflatable rod 11. The plug 12 is formed in a solid shape with a circular cross section d1, and the inflatable rod 11 is rod-shaped. The diameter of the diameter-reducing perforation 112 is formed by the wall thickness d2, so that the pin 12 and the through-hole 111 have a circular volume d1 multiplied by the thickness d2 of the tube wall, thereby increasing the gap between the pin 12 and the inflation rod 11. The bonding strength makes the pin 12 less susceptible to torsion or shearing In the case of a shape or a break, the gas nozzle 10 is formed with a gas nozzle head 13 at the other end of the gas-filling rod 11, and a cap 14 is locked at the gas nozzle head 13, and a tire pressure detector 20 is provided. There is a body 21, and the seat body 21 is inserted through an adjusting groove 22, and the air nozzle 10 is inserted into the adjusting groove 22 of the seat body 21 by the inflation rod 11, and the inflatable rod 11 and the adjusting groove 22 are present between Sufficient clearance, the inflatable rod 11 can be displaced or oscillated at the adjusting groove 22, thereby adjusting the relative angle of the air nozzle 10 and the tire pressure detector 20, and the inflatable rod 11 is at the same side of the opening of the through hole 111. A flat cut surface 114 is formed, and the inflatable rod 11 is in contact with the inner wall surface of the adjustment groove 22 by the flat cut surface 114, so that the tire pressure detector 20 cannot be rotated relative to the air nozzle 10, and the inflatable rod 11 passes through the One end of the adjusting groove 22 is connected with a fixing member 15 , and the fixing member 15 is engaged with the locking pin 12 to sandwich the seat body 21 . The fixing member 15 is a bolt axially locked to the through hole 112 , and the fixing member 15 is not long in length. The through hole 111 and the air hole 113 of the inflating rod 11 are blocked, whereby the fixing body 15 is engaged with the pin 12 to sandwich the seat body 21, and then In one step, a first surface 23 and a second surface 24 are formed on the opening of the two ends of the adjusting slot 22. The fixing member 15 is disposed on the first surface 23, and the fixing member 15 is sleeved with a washer. 151, and the gasket 151 is pressed against the first surface 23 of the base body 21, and the latching pin 12 is disposed on the second surface 24, and the base body 21 is recessed with a receiving groove 25 at the second surface 24. The accommodating groove 25 is in cross-shaped communication with the adjusting groove 22, and the accommodating groove 25 provides a positioning limit of the pin 15, thereby further restricting the pin 12 to form a positioning shaft of the air nozzle 10, and The relative angle between the end of the fixing member 15 and the tire pressure detector 20 can achieve the function of adjusting the angle of the rod-shaped nozzle structure, so that the tire pressure detector 20 can stably abut On the bottom surface of the wheel frame 30.

The effect of the actual use, and then viewed from the second figure to the seventh figure, the gas nozzle 10 is provided at one end with a gas nozzle head 13 for providing inflation, and the other end of the gas nozzle 10 is extended with an inflation rod. 11. The air nozzle head 13 and the inflatable rod 11 are integrally formed with a plurality of connecting portions 16 and a latching portion 17, and the latching portion 17 is adjacent to the air nozzle head 13 and is disposed on the connecting portion 16 A rubber sleeve 18 is disposed, and the rubber sleeve 18 is abutted against the latching portion 17 , and a loop 181 is protruded from the rubber sleeve 18 toward the inflatable rod 11 , and the rubber sleeve 18 is adjacent to the rubber sleeve 18 . A limiting slot 182 is formed in the ring 181, so that the air nozzle 10 can be assembled on the wheel frame 30 with the rubber sleeve 18, and the bolt 12 is inserted through the through hole 111 of the inflatable rod 11 during assembly. The two ends of the pin 12 are symmetrically disposed on the two sides of the inflating rod 11, and the end of the inflating rod 11 is inserted into the adjusting groove 22 of the tire pressure detector 20 so that the pin 12 can be placed in the seat. The body 21 accommodates the slot 25, and locks the fixing member 15 to the through hole 112 of the inflatable rod 11 at the end of the first surface 23 of the base 21, so that the washer 151 of the fixing member 15 is pressed against the first The surface 23 is simultaneously tensioned and the pin 12 is pressed against the receiving groove 25 of the second surface 24, thereby forming the fixing member 15 and the pin 12 to be fixed to the seat body 21 when the wheel frame is to be mounted on the wheel frame. At 30 o'clock, the air nozzle 10 passes through the wheel frame 30 outwardly from the inside of the wheel frame 30, and the limiting slot 182 of the rubber sleeve 18 is fastened to the wheel frame 30, so that the air hole 113 of the inflatable rod 11 is located at the wheel frame 30. Internally, the ring frame 181 of the rubber sleeve 18 blocks the wheel frame 30 so that the air nozzle 10 can no longer be withdrawn, and when the air nozzle 10 is fixed to the wheel frame 30, the fixing member 15 can be unlocked. The assembly angle between the adjustment slot 22 and the inflation rod 11 of the base 21 can adjust the assembly angle of the tire pressure detector 20, so that the tire pressure detector 20 can as close as possible to the bottom surface of the wheel frame 30, as described in The tire pressure detector 20 shown in FIGS. 7 and 7 is mounted on the wheel frame 30 of different styles at different fixed angles, thereby achieving the purpose of stably installing the tire pressure detector 20, and further explanation, please cooperate with the 3rd and 4th. As shown in the figure, the pin 12 is formed in a solid shape with a circular cross section d1, and the inflation rod 11 is formed with a tube wall thickness d2 by the rod diameter minus the hole diameter of the through hole 112, so that the pin 12 and the pin 12 The through hole 111 has a first force receiving portion A1 and a second force receiving portion A2 with a circular cross section d1 multiplied by the wall thickness d2, and the pin 12 extends through the inflatable rod 11 to extend outwardly on both sides. a third force receiving portion A3 and a fourth force receiving portion A4 of the body volume, the inflatable rod 11, the pin 12 and the seat body 21 pass through the first, the second, the third and the fourth force The parts (A1 to A4) constitute a four-point force state, that is, the joint strength can be greatly increased by the increase of the force receiving area, so that the bolt 12 is less susceptible to deformation or breakage by the torsion or shearing force.

In another embodiment of the present invention, as shown in FIG. 8 , the seat body 21 has a receiving hole 26 adjacent to the second surface 24 , and the receiving hole 26 and the adjusting groove 22 cross. In the assembled state, the inflation rod 11 of the air nozzle 10 is first passed through the adjustment slot 22 of the base body 21, and the insertion limit of the bolt 12 is provided by the receiving hole 26, and the end of the inflation rod 11 is provided. The fixing hole 15 is locked at the perforation 112, thereby further restricting the pin 12 to form a positioning shaft of the air nozzle 10, that is, the end of the fixing member 15 can be swung to form an angle adjustment of the tire pressure detector 20, that is, the rod can be reached. The shape of the nozzle structure can adjust the angle without a segment, so that the tire pressure detector 20 can stably abut against the bottom surface of the wheel frame 30, which is an equivalent application of the creation.

In another embodiment of the present invention, as shown in FIG. 9, the gas nozzle 10 is provided with a gas nozzle head 13 for providing inflation, and the other end of the gas nozzle 10 has an inflatable rod 11 extending. A plurality of connecting portions 16 and a locking portion 17 are integrally formed between the air nozzle head 13 and the inflatable rod 11 , and the locking portion 17 is adjacent to the inflatable rod 11 , and a metal screw is locked to the connecting portion 16 . When the cap 19 is assembled, the air nozzle 10 can be pressed against the inner side of the wheel frame 30 by the card abutting portion 17 after passing through the wheel frame 30, and then locked by the metal nut 19 to the set of segments 16 to make the metal The nut 19 and the card abutting portion 17 are engaged with the wheel frame 30 to form a joint and fix, thereby forming another method of fixing to the wheel frame 30.

In another embodiment of the present invention, as shown in FIGS. 10 and 11, the inflatable rod 11 is formed with a threaded section 115 at an outer periphery of one end of the seat body 21, and the fixing member 15 is a nut. A gasket 151 is disposed between the fixing member 15 and the first surface 23 of the base body 21, thereby providing another connection between the nozzle 10 and the tire pressure detection. The low cost assembly of the device 20.

According to the structure of the above specific embodiment, the following benefits can be obtained: (1) one end of the air nozzle 10 has an inflatable rod 11 extending therein, and the inflation rod 11 is transversely penetrated through a through hole 111, and the through hole 111 is provided with a through hole 111. The latch 12 is further inserted into an adjusting slot 22, and the air nozzle 10 is inserted into the adjusting slot 22 of the base body 21 by the inflatable rod 11, and is locked at one end of the adjusting rod 22 through the adjusting rod 22. A fixing member 15 is disposed, so that the inflatable rod 11 can be used to fix the seat body 21 of the tire pressure detector 20 with the pin 12 and the fixing member 15 , and has the stepless adjustment of the air nozzle 10 and the tire pressure detection. The relative angle function of the device 20 further has the practical function of low production cost; (2) the gas nozzle 10 is provided with a rubber sleeve 18, so that the gas nozzle 10 can be assembled to the wheel frame 30 with the rubber sleeve 18 In the above, the rubber nozzle structure is configured, and the air nozzle 10 is inserted through the pin 12 in the transverse direction of the inflatable rod 11, and then the end lock fixing member 15 is formed to fix the tire pressure detector 20, thereby adopting a simple structure. Let the rubber nozzle have the function of adjusting the angle of the tire pressure detector 20 without a step, so as to obtain a practical solution capable of adjusting the angle without a segment; The gas nozzle 10 is completely inserted through the adjusting groove 22 of the seat body 21 by the inflatable rod 11 and locked into the through hole 112 of the inflatable rod 11 by a bolt-like fixing member 15, and the fixing member 15 can lock the through hole 112. The inflating rod 11 is solid in the position of the adjusting groove 22, and the reaction force generated by the seat body 21 is completely received by the inflating rod 11, so that the bending deformation of the fixing member 15 can be avoided. The structural strength of the combination of the gas nozzle 10 and the tire pressure detector 20 is improved; (4) the bolt 12 is formed with a circular cross section d1 in a solid shape, and the inflation rod 11 is formed with a tube wall thickness by a rod diameter minus the hole diameter of the through hole 112. D2, the pin 12 and the through hole 111 have a first force receiving portion A1 and a second force receiving portion A2 with a circular cross section d1 multiplied by the wall thickness d2, and the pin 12 passes through the inflatable rod 11 a third force receiving portion A3 and a fourth force receiving portion A4 extending outwardly from the two sides, the inflating rod 11, the pin 12 and the base body 21 passing through the first, the second, the The third and the fourth force receiving portions (A1 to A4) constitute a four-point stress state, that is, the combined force area can greatly increase the combination thereof. Degrees so that pin 12 is less susceptible to torsion or shearing force of breakage or deformation is generated.

In summary, the present invention has indeed achieved a breakthrough structural design, and has improved invention content, and at the same time, can achieve industrial utilization and progress, and the present invention is not found in any publication, but also novel, when In accordance with the provisions of the relevant laws and regulations of the Patent Law, the application for invention patents is filed according to law, and the examination authority of the bureau is required to grant legal patent rights.

The above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; that is, the equivalent variations and modifications made by the scope of the present invention should still belong to the present invention. Within the scope of the patent.

Claims (10)

 A tire pressure detecting device includes: a gas nozzle, an inflatable rod is extended at one end of the gas nozzle, and the through hole is transversely penetrated through the through hole, and a pin is disposed in the through hole; and a tire pressure detector is disposed The tire pressure detector is provided with a body, and the seat body is inserted through an adjustment slot, and the air nozzle is inserted through the adjustment slot of the seat body, and the inflation rod passes through the adjustment slot. One end is coupled to a fixing member, and the fixing member cooperates with the pin to sandwich the seat body.    The tire pressure detecting device according to claim 1, wherein the inflation rod is formed with a flat cutting surface at the same side of the opening of the through hole, and the inflatable rod is in contact with the inner wall surface of the adjusting groove by the flat cutting surface. .    The tire pressure detecting device according to claim 1, wherein the seat body is formed with a first surface and a second surface at the opening ends of the adjusting groove, and the fixing member is disposed at the first a surface, and the pin is disposed on the second surface.    The tire pressure detecting device according to claim 3, wherein the seat body is recessed with a receiving groove at the second surface, and the receiving groove is in a cross-shaped communication with the adjusting groove. The accommodating groove provides a insertion limit of the pin.    The tire pressure detecting device of claim 3, wherein the seat body has a receiving hole adjacent to the second surface, and the receiving hole is in cross-shaped communication with the adjusting groove, and the receiving hole The receiving hole provides an insertion limit of the pin.    The tire pressure detecting device according to the fourth or fifth aspect of the invention, wherein the inflation rod has a through hole formed in the axial direction, and the inflation rod has a hole extending through the through hole, and the bolt is solid. Forming a circular cross section, and the inflation rod is formed with a tube wall minus the hole diameter to form a wall thickness, and the pin and the through hole have a circular cross section multiplied by a thickness of the tube wall and a first force receiving portion and a The second force part.    The tire pressure detecting device according to the sixth aspect of the invention, wherein the pin penetrates the third force receiving portion and the fourth force receiving portion of the body of the rod body extending outward from the inflatable rod. The inflation rod, the pin and the base body form a four-point stress state through the first, second, third and fourth force receiving portions, thereby achieving the purpose that the plug is not easily broken and deformed.    The tire pressure detecting device according to claim 6, wherein the fixing member is a bolt that is axially screwed to the through hole, and the fixing member is sleeved with a gasket, and the gasket is pressed against the seat. The first surface of the body.    The tire pressure detecting device according to claim 6, wherein the inflation rod is formed with a threaded portion at an outer periphery of one end of the body, and the fixing member is screwed to the thread portion. And a gasket is interposed between the fixing member and the first surface of the seat body.    The tire pressure detecting device according to claim 1, wherein the nozzle has a nozzle head formed at the other end of the inflation rod, and a cap is locked at the nozzle head.