CN203335967U

CN203335967U - Tire valve

Info

Publication number: CN203335967U
Application number: CN2013203638123U
Authority: CN
Inventors: 夏舟波
Original assignee: NINGBO ABLE RUBBER AND AUTO PARTS CO Ltd
Current assignee: NINGBO ABLE RUBBER AND AUTO PARTS CO Ltd
Priority date: 2013-06-17
Filing date: 2013-06-17
Publication date: 2013-12-11
Anticipated expiration: 2023-06-17

Abstract

The utility model provides a tire valve. The tire valve comprises a valve pipe casing connected with a tire and a valve seat arranged in the valve pipe casing. An inflation cavity is formed in the valve seat. A locking block capable of sealing gas is arranged on the top surface of the inflation cavity. A valve hole is formed in the locking block. An ejector pin capable of stretching and retracting is arranged in the air hole. The head portion of the ejector pin extends out of the top of valve hole. A step is arranged in the middle of the ejector pin. The upper surface of the step abuts against the bottom surface of the locking block. The lower portion of the ejector pin is sleeved with a spring. The top of the spring is supported by the bottom surface of the step. The bottom of the spring is supported by the step surface of the valve seat. The tire valve has the advantages that through matching between the locking block and the ejector pin, intake and exhaust of gas and sealing of the gas are achieved; due to the fact that the upper step surface of the ejector pin is provided with a sealing gasket, the resistance to the pressure is good, and the gas tightness is greatly increased; the valve pipe casing is matched with the valve in size and connected with the valve seat, the lower half portion of the valve pipe casing is thickened, therefore, connection is stable and firm, the protection function on the valve seat is achieved, and the service life of the tire valve is prolonged.

Description

Tyre valve

Technical field

The utility model relates to a kind of motor vehicle fittings manufacture technology field, especially refers to a kind of tyre valve.

Background technique

Tyre valve charges and discharges gas or liquid for tire, and the one-way cock of pressing in keeping and detect.It is arranged in tire and convexedly stretches in wheel rim framework periphery, include a valve seat, and be provided with the turnover of a valve rod control gas and airtight conditions is provided in the valve seat, and then can pour into gas to tire via this tyre valve, make tire there is certain tire pressure.

Existing a kind of patent No. is that the Chinese utility model patent that the CN99215011.6 name is called " tyre valve " discloses a kind of structure, its structure includes a base top without screw thread, the gas tube of packing ring and nut, it is characterized in that: gas tube port internal diameter is greater than the diameter of cavities in gas tube, gas tube middle part cavity diameter is greater than its underpart cavity diameter, port at gas tube arranges a charging air inlet, it is connected with the gas tube inwall by screw thread, be cavity in charging air inlet, the upper diameter of cavity is less than lower diameter, one taper steam leak-off valve is set in cavities in gas tube, the gas leakage bottom connects a spring, in the gas tube inner chamber of spring bottom, a block seat is set, connect one on the gas tube port outer wall and coordinate the gas-charging connection of inflating.Though this valve cock applied range, the valve cock on existing various tires replaced, but complex structure, cost is high, and closed performance is not good, is difficult to stop chronic leakage, and the valve pipe is easy to wear.The valve seat is generally a slim-lined construction, is arranged on frangibility in thin-wall circular tube, and the inflatable chamber cross section of valve seat is little, and inflation is wasted time and energy.Therefore, this device structurally also needs further improvement.

Summary of the invention

Technical problem to be solved in the utility model be for the above-mentioned state of the art, provide a kind of simple in structure, making and easy for installation, cost of production is low, tightness good, the tyre valve of long service life.

The utility model solves the problems of the technologies described above adopted technological scheme: this tire valve mouth, comprise the valve pipe box be connected with tire and be arranged on the valve seat in the valve pipe box, it is characterized in that: form the inflatable chamber for inflation in described valve seat, the lock dog of energy confining gas is set at the end face of described inflatable chamber, be provided with the valve port be connected with inflatable chamber in described lock dog, be plugged with retractable thimble in described valve port, the head of described thimble extends the valve port top, the projection plane of vertically analysing and observe of described thimble approximately is cross, the middle part of described thimble is provided with step, the upper surface of described step can contact mutually with the lock dog bottom surface and the structure of gas sealing in inflatable chamber can be set together, the bottom of described thimble is equipped with spring, the top of described spring is together with the bottom supporting of step, and the bottom of described spring is with together with the step surface of valve seat is supported on.

As improvement, between described step upper surface and lock dog bottom surface, can also be gripped with sealing block.

As improvement, the epimere of described valve pipe box is straight-tube shape, is coated on the hypomere outside of valve seat, and the middle hypomere of described valve pipe box is the hole enlargement shape of thickening, excessive with cambered surface with the epimere of valve pipe box, the bottom of described valve pipe box is shaped to a round table-like base.

As improvement, the internal diameter of the endoporus epimere in described valve pipe box and the hypomere outside dimension of valve seat are suitable, and the endoporus hypomere of described valve pipe box is the undergauge section, and the internal diameter of this undergauge section directly is connected with the internal diameter of the hypomere inflatable chamber of valve seat.

As improvement, form interior spiral shell on the epimere inner peripheral surface of described valve seat, be provided with the outside thread that in energy, spiral shell is connected on the outer circumferential face of described lock dog.Be convenient to be fixedly connected with.

As improvement, on the epimere outer circumferential face of described valve seat, be provided with outside thread.

Compared with prior art, the utility model has the advantage of: this tire valve mouth structure is simple, and cost of production is low, and easy to make, installs and change also to be easy to; Be provided with lock dog in the valve pipe, realize turnover and the sealing of gas by lock dog and coordinating of thimble, on the terrace of appearing on the stage of thimble, sealing gasket is set, resistance to pressure is good, has greatly increased tightness; The valve pipe box is connected with valve seat dimensional fits, and the middle and lower part of valve pipe box is the thickening shape, and not only stable connection is firm, also the valve seat is played a protective role, and has extended working life.

The accompanying drawing explanation

Fig. 1 is the utility model embodiment's three-dimensional structure diagram;

Fig. 2 is the three-dimensional structure diagram of another angle of the utility model embodiment;

Fig. 3 is 2 plan view;

Fig. 4 is along the sectional view of A-A line in Fig. 3.

Embodiment

Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.

As shown in Figures 1 to 4, the tyre valve of the present embodiment, comprise the valve pipe box 1 be connected with tire and be arranged on the valve seat 2 in valve pipe box 1, it is characterized in that: form the inflatable chamber 22 for inflation in described valve seat 2, the lock dog 3 of energy confining gas is set at the end face of described inflatable chamber 22, be provided with the valve port 4 be connected with inflatable chamber 22 in described lock dog 3, be plugged with retractable thimble 5 in described valve port 4, the head of described thimble 5 extends valve port 4 tops, the projection plane of vertically analysing and observe of described thimble 5 approximately is cross, the middle part of described thimble 5 is provided with step 51, the upper surface of described step 51 can contact mutually with lock dog 3 bottom surfaces and the structure of gas sealing in inflatable chamber 22 can be set together, the bottom of described thimble 5 is equipped with spring 6, the top of described spring 6 is with together with the bottom surface 52 of step 51 is supported on, and the bottom of described spring 6 is with together with the step surface 23 of valve seat 2 is supported on.Be gripped with sealing block 7 between described step 51 upper surfaces and lock dog 3 bottom surfaces.The epimere of described valve pipe box 1 is straight-tube shape, is coated on the hypomere outside of valve seat 2, and the middle hypomere of described valve pipe box 1 is the hole enlargement shape of thickening, excessive with cambered surface with the epimere of valve pipe box 1, and the bottom of described valve pipe box 1 is shaped to a round table-like base 11.The internal diameter of endoporus 12 epimeres in valve pipe box 1 and the hypomere outside dimension of valve seat 2 are suitable, and endoporus 12 hypomeres of described valve pipe box 1 are the undergauge section, and the internal diameter of this undergauge section directly is connected with the internal diameter of the hypomere inflatable chamber 22 of valve seat 2.Form interior spiral shell 20 on the epimere inner peripheral surface of described valve seat 2, be provided with the outside thread that in energy, spiral shell 20 is connected on the outer circumferential face of described lock dog 3.Be provided with outside thread 21 on the epimere outer circumferential face of described valve seat 2.

Below the utility model is described in further detail:

This valve pipe box 1 adopts rubber to make, the epimere of described valve pipe box 1 is straight-tube shape, be coated on the hypomere outside of valve seat 2, the middle hypomere of described valve pipe box 1 is the hole enlargement shape of thickening, excessive with cambered surface with the epimere of valve pipe box 1, the bottom of described valve pipe box 1 is shaped to a round table-like base 11, the internal diameter of endoporus 12 epimeres of described valve pipe box 1 coordinates with the hypomere outside dimension of valve seat 2, endoporus 12 hypomeres of described valve pipe box 1 are the undergauge section, and the internal diameter of this undergauge section coordinates with the internal diameter size of the hypomere inflatable chamber 22 of valve seat 2.This structure not only is connected firmly with valve seat 2, has increased the fastness that is connected with tire simultaneously, also valve seat 2 is played a very good protection.That this tyre valve also has advantages of is simple in structure, cost of production is low, install with change facilitate, tightness is good, long service life.

Claims

1. a tyre valve, comprise the valve pipe box (1) be connected with tire and be arranged on the valve seat (2) in valve pipe box (1), it is characterized in that: form the inflatable chamber (22) for inflation in described valve seat (2), the lock dog (3) of energy confining gas is set at the end face of described inflatable chamber (22), be provided with the valve port (4) be connected with inflatable chamber (22) in described lock dog (3), be plugged with retractable thimble (5) in described valve port (4), the head of described thimble (5) extends valve port (4) top, the projection plane of vertically analysing and observe of described thimble (5) approximately is cross, the middle part of described thimble (5) is provided with step (51), the upper surface of described step (51) can contact mutually with lock dog (3) bottom surface and the structure of gas sealing in inflatable chamber (22) can be set together, the bottom of described thimble (5) is equipped with spring (6), the top of described spring (6) is with together with the bottom surface (52) of step (51) is supported on, and the bottom of described spring (6) is with together with the step surface (23) of valve seat (2) is supported on.

2. tyre valve according to claim 1, is characterized in that: between described step (51) upper surface and lock dog (3) bottom surface, be gripped with sealing block (7).

3. tyre valve according to claim 1 and 2, it is characterized in that: the epimere of described valve pipe box (1) is straight-tube shape, be coated on the hypomere outside of valve seat (2), the middle hypomere of described valve pipe box (1) is the hole enlargement shape of thickening, excessive with cambered surface with the epimere of valve pipe box (1), the bottom of described valve pipe box (1) is shaped to a round table-like base (11).

4. tyre valve according to claim 3, it is characterized in that: the internal diameter of endoporus (12) epimere in described valve pipe box (1) and the hypomere outside dimension of valve seat (2) are suitable, endoporus (12) hypomere of described valve pipe box (1) is the undergauge section, and the internal diameter of this undergauge section directly is connected with the internal diameter of the hypomere inflatable chamber (22) of valve seat (2).

5. tyre valve according to claim 1 and 2, it is characterized in that: form interior spiral shell (20) on the epimere inner peripheral surface of described valve seat (2), be provided with the outside thread that in energy, spiral shell (20) is connected on the outer circumferential face of described lock dog (3).

6. tyre valve according to claim 1 and 2, is characterized in that: be provided with outside thread (21) on the epimere outer circumferential face of described valve seat (2).