CN201362144Y

CN201362144Y - Anti-leak tire pressure detector

Info

Publication number: CN201362144Y
Application number: CNU200920067102XU
Authority: CN
Inventors: 黄腾文
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-15
Filing date: 2009-01-15
Publication date: 2009-12-16
Anticipated expiration: 2019-01-15

Abstract

The utility model relates to an anti-leak tire pressure detector, which comprises a pedestal, wherein the pedestal is provided with an annular projecting wall, an external thread and a annular limiting wall and an annular groove is formed between the annular limiting wall and the annular projecting wall; a butt-joint cover, wherein the butt-joint cover is provided with a annular wall body, the internal thread of the butt-joint cover is in threaded connection with the external thread of the pedestal, the end part of the annular wall body is accommodated inside the annular groove, an air-tight ring is embedded and clamped between the butt-joint cover and the pedestal, and an air-tight space is defined by the cooperation of the butt-joint cover and the pedestal after the butt-joint cover and the pedestal are threadedly connected together; a tire pressure detecting component accommodated in the air-tight space; and a valve nozzle component mounted between the pedestal and the butt-joint cover. Since the annular limiting wall is arranged at the outer part of the annular wall body of the butt-joint wall, the position and the shape of the annular wall body are limited, thereby avoiding the deformation of the threaded-connection area between the butt-joint cover and the pedestal and ensuring good air tightness.

Description

Air leakage prevention tyre pressure detector

Technical field

The utility model relates to a kind of tire pressure detector, especially belongs to a kind of good air leakage prevention tyre pressure detector of valve, safety in order to be connected to a car tire.

Background technology

Consult Fig. 1, be known a kind of tire pressure detector, it can be installed on the valve of car tire, in order to the tire pressure of detecting car tire, knows tire pressure immediately for the user.

This tire pressure detector comprises that one is sheathed on the outer pedestal 91 of valve, and a docking cover 92 that docks with internal and

external screw thread

93,94 screw locks with pedestal 91, and establishes an air tight ring 95 in this position that is spirally connected.Wherein, pedestal 91 also can match with docking cover 92 and define an airtight space 96 jointly, with the essential assembly that is installed with tire pressure detector as: in order to the pressure detection unit of detecting tire pressure, in order to the signal transmitter unit of the signal that sends the tire pressure situation with the battery etc. of pressure detection unit electric power is provided.In addition, between the valve of pedestal 91 and car tire be group be provided with one with pedestal 91 fit and the valve nozzle assembly 97 that docks with valve mutually, open valve in order to perseverance, flow into airtight space 96 through valve, valve nozzle assembly 97 for the gas in the car tire, but and then mat tire pressure detector detecting tire pressure.

Above-mentioned known tire pressure detector is to be screwed together in the set outside thread 94 of pedestal 91 wall bodies with the set negative thread 93 of docking cover 92 wall bodies.But the outside of this docking cover 92 is not provided with limiter assembly, this is in when bearing pressure or causing docking cover 92 distortion because of factors such as temperature traverses, the outside of docking cover 92 wall bodies does not expand outwardly distortion easily because of restricted, cause and pedestal 91 between fail driving fit, and gapped.Thereby, deposit the gas that is contained in airtight space 96 in-to-in car tires and promptly can outwards continue to leak via above-mentioned gap, cause the harm on the car driving safety.

Moreover because tire pressure detector all is to expose to outside the car tire together with valve, when suffering external force collision car tire in advancing as car or when usual, the docking cover of this kind tire pressure detector easily drops because of bump gets loose.Yet known tire pressure detector is because its valve nozzle assembly 97 is to be mounted between pedestal 91 and the valve, if only docking cover 92 gets loose and drops and pedestal 91 when not coming off, then valve nozzle assembly 97 will continue to make the valve of valve to be opening.In in the case, can cause the gas of car tire to continue to leak, this is especially very dangerous for the car in advancing.

In sum, known tire pressure detector application deficiency still has improved space.

Summary of the invention

Therefore, the purpose of this utility model is to provide a kind of air leakage prevention tyre pressure detector that has safety and application concurrently.

For reaching above-mentioned purpose, the utility model provides a kind of air leakage prevention tyre pressure detector, and its valve with a car tire docks, in order to detect the air pressure of this tire; According to the utility model one embodiment, tire pressure detector comprises: a pedestal, have the prominent wall of an annular, and its outer wall is provided with outside thread, and pedestal forms an annular groove in the outside annular stop wall that is provided with of the prominent wall of annular between the prominent wall of annular stop wall and annular; One docking cover, has an annular wall body that matches and answer with the prominent wall of the annular of pedestal, the inwall of annular wall body is provided with negative thread, the outside thread bolt of itself and pedestal, and make the end of annular wall body be placed in annular groove, inlay card has an air tight ring between docking cover and the pedestal, after docking cover and pedestal are spirally connected, match and defines an airtight space jointly; The tire pressure detection assembly is placed in airtight space; And the valve nozzle assembly, be installed between pedestal and the docking cover.Be placed on its outside according to butt joint and have the annular stop wall as the annular wall body at the position that is spirally connected, and the position and the shape of annular wall body have been limited, therefore be not easy to this position that is spirally connected and produce distortion, thereby can often protect the position good air-tightness that is spirally connected between docking cover and pedestal, prevent that tire is via losing heart between docking cover and the pedestal.

Preferably, air tight ring is embedded in annular groove, and is positioned at the end of the annular wall body of docking cover.When docking cover is screwed together in pedestal, can further promote the air-tightness between pedestal and the docking cover simultaneously with the end packing air tight ring of annular wall body.

Preferably, pedestal be provided with one run through and the perforation and that communicates with airtight space be arranged with in its away from the docking cover side and communicate with perforation wear groove; And the valve nozzle assembly includes a valve nozzle and an Airtight gasket, wherein, valve nozzle comprises: the valve nozzle body of a hollow, it has a ventilation Duan Yuyi contact section that is connected, ventilation section is sheathed on airtight space, bores a hole and wears in the groove, and the contact section is positioned at the aperture less than the ventilation section, the aperture of wearing groove and this contact section; And a ring portion, be located on the outside of valve nozzle body and be positioned at airtight space, in order to the position of restriction valve nozzle body; Airtight gasket then also overlaps in wearing groove and is stuck between valve nozzle body and the pedestal, outwards loses heart via the wearing groove of valve nozzle body or pedestal in order to the air pressure that prevents tire.Towards the docking cover direction, thereby when docking cover comes off, its valve nozzle also can come off thereupon, avoids tire lasting disappointing via valve nozzle because the ring portion of valve nozzle is positioned at airtight space.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.

In the accompanying drawings:

Fig. 1 is the assembly drawing of analysing and observe of known tire pressure detector.

Fig. 2 is the side-looking exploded drawings of the air leakage prevention tyre pressure detector of the utility model embodiment.

Fig. 3 is the not complete three-dimensional exploded view of this embodiment of the utility model.

Fig. 4 is another angle and the not complete three-dimensional exploded view of this embodiment of the utility model.

Fig. 5 is the three-dimensional combination figure of this embodiment of the utility model.

Fig. 6 is the assembly drawing of analysing and observe of this embodiment of the utility model.

Drawing reference numeral:

1. pedestal 3. tire pressure detection assemblies

11. the prominent wall 31. first electrically conductive elastic spares of annular

12. outside thread 32. batteries

13. annular stop wall 33. tire pressure detection unit

14. annular groove 34. second electrically conductive elastic spares

35. insulating tubes 15. bore a hole

16. wear groove 4. valve nozzle assemblies

2. docking cover 41. valve nozzles

21. annular wall body 411. valve nozzle bodies

22. negative thread 412. ring portions

23. air tight ring 413. ventilation sections

24. airtight space 414. contact sections

42. Airtight gasket

The specific embodiment

About aforementioned and other technology contents, characteristics and effect of the present utility model, in the middle of following cooperation describes in detail with reference to graphic embodiment, can clearly present.

Consult Fig. 2 to Fig. 6.As shown in the figure, be the utility model air leakage prevention tyre pressure detector one embodiment, its inside is provided with a valve nozzle assembly, on the valve (figure does not show) that is arranged at a car tire, open the valve valve of tire with perseverance, gas in the car tire can be entered in the tire pressure detector through valve, valve nozzle assembly, detect the tire pressure of car tire by this.

In the present embodiment, tire pressure detector comprises: a conductive pedestal 1, a pair of joint chair 2, a tire pressure detection assembly 3 and a valve nozzle assembly 4.

Pedestal 1 has the prominent wall 11 of an annular, and its outer wall is provided with outside thread 12; And pedestal 1 is to form an annular groove 14 in the outside annular stop wall 13 that is provided with of the prominent wall 11 of annular between the prominent wall 11 of annular stop wall 13 and annular.

Docking cover 2 have one with the prominent wall 11 of the annular of pedestal 1 match answer annular wall body 21, its inwall is provided with negative thread 22.Docking cover 2 is screwed onto with the outside thread 12 of its negative thread 22 with pedestal 1, and makes the end of annular wall body 21 of docking cover 2 be placed in the annular groove 14 of pedestal 1, that is annular stop wall 13 is positioned at the outside of docking cover 2 annular wall bodies 21.

One air tight ring 23 is embedded in the position that is spirally connected between pedestal 1 and the docking cover 2, for example air tight ring 23 is embedded in annular groove 14, and be positioned at the end of docking cover 2 annular wall bodies 21, when docking cover 2 is screwed together in pedestal 1, can further promote the air-tightness between pedestal 1 and the docking cover 2 simultaneously with the end packing air tight ring 23 of docking cover 2 annular wall bodies 21.After pedestal 1 and docking cover 2 windings, and can match and define an airtight space 24 jointly.

Because docking cover 2 has annular stop wall 13 in its outside as the annular wall body 21 at the position that is spirally connected, it can limit the position and the shape thereof of annular wall body 21, therefore be not easy to this position that is spirally connected because of bearing pressure or be out of shape, thereby can often protect the position good air-tightness that is spirally connected between docking cover 2 and the pedestal 1 because of factors such as temperature traverse produce.In in the case, the car tire will not have disappointing anxiety, and safety is good and application is good, reaches creation purpose of the present utility model really.

Pedestal 1 has a perforation 15 that connects with airtight space 24 in addition, and one be arranged with in pedestal 1 away from docking cover 2 sides and also communicate with perforation 15 wear groove 16.

On a feasible embodiment, tire pressure detection assembly 3 comprises one first electrically conductive elastic spare 31, a battery 32, a tire pressure detection unit 33, one second electrically conductive elastic spare 34, and with an insulating tube 35, it all is located in the airtight space 24.Wherein, the first electrically conductive elastic spare 31 is installed between perforation 15 the top side and battery 32, can make the tire gas that is imported into can enter airtight space 24 swimmingly, and keeps at any time that excellent electrical property is connected between battery 32 and the pedestal 1.The negative pole of battery 32 and pedestal 1 forms and electrically connects, and the positive pole of the battery 32 then mat second electrically conductive elastic spare 34 and form with tire pressure detection unit 33 electrically connects; By this, battery 32 can provide the tire pressure detection unit 33 electric power.Tire pressure detection unit 33 can comprise: a circuit card, respectively be arranged on the circuit card and with the assemblies such as a pressure detection device, a temperature detecting device, a microprocessor or signal emission device that its formation electrically connects, repeat no more in this.The second electrically conductive elastic spare 34 is positioned at 33 of battery 32 and tire pressure detection unit, in order to the position of stable cell 32, and makes 33 of battery 32 and tire pressure detection unit form excellent electrical property to be connected.Insulating tube 35 is located on 32 on pedestal 1 and battery, electrically contacts in order to the side direction of isolated described two inter-modules.

Must be noted that at this assembly that tire pressure detection assembly 3 is included does not exceed with the revealer of present embodiment institute, the designer is when structure and the assembled components that can change tire pressure detection assembly 3 according to design requirement.

Please continue to consult Fig. 2, Fig. 3, Fig. 4, Fig. 6, valve nozzle assembly 4 comprises: a valve nozzle 41, and with an Airtight gasket 42.

Valve nozzle 41 has the valve nozzle body 411 and a ring portion 412 of a hollow.

Valve nozzle body 411 has a ventilation the section 413 and one contact section 414 that is connected.The ventilation section is sheathed on airtight space 24, perforation 15 and wears in the groove 16; Contact section 414 is positioned at wears groove 16.The aperture of contact section 414 can corresponding be resisted against the valve (not shown) of the valve of tire and make it be opening less than the aperture of ventilation section 413, makes the gas of car tire enter airtight space 24 through valve, contact section 414, ventilation section 413 by this.

Ring portion 412 is located on the outside of valve nozzle body 411 and is positioned at airtight space 24, and the sectional area of this ring portion 412 is greater than the aperture of perforation 15, in order to the position of restriction valve nozzle body 411.That is valve nozzle 41 is to be assembled in the perforation 15 of pedestal 1 by the direction of airtight space 24, and makes the ring portion 412 of valve nozzle 41 be resisted against the top side (promptly boring a hole towards this side of airtight space) of perforation 15.

Airtight gasket 42 is positioned at wears groove 16, and cover is stuck in 1 of valve nozzle body 411 and pedestal, outwards disappointing via the wearing groove 16 of valve nozzle body 411 or pedestal 1 in order to the air pressure that prevents tire.

By the mechanism design of valve nozzle assembly 4, that is the valve nozzle 41 of valve nozzle assembly 4 has the ring portion 412 of big external diameter, and this ring portion 412 is to be positioned at airtight space 24 and towards the direction of docking cover 2; When car is advanced or suffer external force collision car tire when usual, when dropping because of bump gets loose as the docking cover 2 of tire pressure detector, its assembly that is placed in the airtight space 24 comprises that valve nozzle 41 also all will break away from airtight space 24, and the direction of open docking cover 2 comes off certainly.At this moment, it is not subjected to the valve of the cranked tire valve that valve nozzle assembly 4 backs down then to be closed condition; In in the case, the car tire will not have via the disappointing anxiety of valve nozzle, and safety is good and application is good, reaches creation purpose of the present utility model really.

Though the utility model is described in detail by above-mentioned preferred embodiment, the above person of thought, it only is preferred embodiment of the present utility model, when not limiting the scope that the utility model is implemented with this, promptly change according to the utility model claim and utility model simple equivalent that description is done generally and modify, all still belong in the scope that the utility model patent contains.

Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; anyly have the knack of this skill person; in not breaking away from spirit and scope of the present utility model; when being used for a variety of modifications and variations, therefore protection domain of the present utility model is as the criterion when looking accompanying the claim person of defining.

Claims

1. air leakage prevention tyre pressure detector, its valve with a car tire docks, in order to detect the air pressure of this tire; It is characterized in that this tire pressure detector comprises:

One pedestal comprises the prominent wall of an annular, and the outer wall of the prominent wall of this annular is provided with outside thread, and this pedestal forms an annular groove in the outside annular stop wall that is provided with of the prominent wall of this annular between the prominent wall of this annular stop wall and this annular;

One docking cover comprises an annular wall body that matches and answer with the prominent wall of the annular of this pedestal, and the inwall of this annular wall body is provided with negative thread, the outside thread bolt of itself and this pedestal, and make the end of this annular wall body be placed in this annular groove; Inlay card has an air tight ring between this docking cover and this pedestal; After this docking cover and this pedestal are spirally connected, match and define an airtight space jointly;

One tire pressure detection assembly is placed in this airtight space; And

One valve nozzle assembly is installed between this pedestal and this docking cover.

2. air leakage prevention tyre pressure detector as claimed in claim 1 is characterized in that: described air tight ring is embedded in this annular groove, and is positioned at the end of this annular wall body.

3. air leakage prevention tyre pressure detector as claimed in claim 1 or 2 is characterized in that: described pedestal be provided with one run through and the perforation and that communicates with this airtight space be arranged with in its away from this docking cover side and communicate with this perforation wear groove; This valve nozzle assembly includes a valve nozzle and-Airtight gasket, wherein:

This valve nozzle comprises:

The valve nozzle body of one hollow, this valve nozzle body have a ventilation Duan Yuyi contact section that is connected; This ventilation section is sheathed on this airtight space, this perforation and this is worn in the groove; This contact section is positioned at the aperture of this aperture of wearing groove and this contact section less than this ventilation section; And

One ring portion is located on the outside of this valve nozzle body and is positioned at this airtight space, in order to limit the position of this valve nozzle body;

This Airtight gasket also overlaps in this wears groove and is stuck between this valve nozzle body and this pedestal, outwards loses heart via the wearing groove of this valve nozzle body or this pedestal in order to the air pressure that prevents this tire.