阅读说明：本技术 一种用于汽车轮胎的气门嘴结构 (Inflating valve structure for automobile tire ) 是由 陈学清 于 2021-10-27 设计创作，主要内容包括：本发明涉及气门嘴结构技术领域,且公开了一种用于汽车轮胎的气门嘴结构,包括气门嘴阀体,所述气门嘴阀体内腔的顶部和内腔的底部之间分别设有一组限位环Ⅰ和限位环Ⅱ,所述气门嘴阀体内腔的顶部且位于限位环Ⅰ的下方活动套接有上阀芯,所述气门嘴阀体的顶部开设有连通槽Ⅰ。该用于汽车轮胎的气门嘴结构,对于连通槽Ⅱ的设置,既可以实现对气门嘴阀体中被下阀芯所分隔的两个腔室,同时,又改变该汽车轮胎内的高压气体对于下阀芯作用力的方向,使其与下阀芯上下活动时的受力方向相垂直,进而有效地提高了其对于连通槽Ⅱ的密封效果,避免了该汽车轮胎内所填充的高压气体发生“逃逸”的现象,稳定性及可靠性较高。(The invention relates to the technical field of inflating valve structures, and discloses an inflating valve structure for an automobile tire, which comprises an inflating valve body, wherein a group of limiting rings I and a group of limiting rings II are respectively arranged between the top of an inner cavity of the inflating valve body and the bottom of the inner cavity, an upper valve core is movably sleeved at the top of the inner cavity of the inflating valve body and positioned below the limiting rings I, and a communicating groove I is formed in the top of the inflating valve body. This a inflating valve structure for automobile tire to the setting of intercommunication groove II, both can realize two cavities by the lower valve core partitioned in the inflating valve body, simultaneously, change the direction of high-pressure gas in this automobile tire to the lower valve core direction of action again, make its atress direction when moving from top to bottom with the lower valve core mutually perpendicular, and then improved its sealed effect to intercommunication groove II effectively, avoided the high-pressure gas that fills in this automobile tire to take place the phenomenon of "escaping", stability and reliability are higher.)

1. The utility model provides a valve structure for automobile tire, includes valve body (1), be equipped with a set of spacing ring I (2) and spacing ring II (9), its characterized in that between the top of valve body (1) inner chamber and the bottom of inner chamber respectively: the top of the inner cavity of the valve body (1) of the inflating valve is movably sleeved with an upper valve core (3) below a limiting ring I (2), the top of the valve body (1) of the inflating valve is provided with a communicating groove I (4), the middle part of the inner cavity of the valve body (1) of the inflating valve is movably sleeved with a middle valve core (5) below the upper valve core (3), the top end of the upper valve core (3) is provided with a curved surface groove (12), the middle part of the valve body (1) of the inflating valve is provided with a vent hole (6) communicated with the outside of the valve body, the bottom of the inner cavity of the valve body (1) of the inflating valve is movably sleeved with a lower valve core (7), the middle valve core (5) and the lower valve core (7) of the inflating valve are in transmission connection through a first pressure spring (8), the middle valve core (5) is formed by combining and splicing an upper group of circular bosses and a lower group of circular bosses, the periphery of the lower circular bosses of the middle valve core (5) of the middle valve core is provided with communicating holes (15) communicated with the upper end and the lower end of the middle valve core, the lower valve core (7) is in transmission connection with the limiting ring II (9) through a second pressure spring (10), and a U-shaped structure communication groove II (11) is formed in the bottom of the inflating valve body (1).

2. A valve structure for automobile tires according to claim 1, characterized in that: the distance between the upper and lower communicating ports of the inner cavity of the positioning connecting rod (14) is greater than the height of the part, with the same size as the inner diameter of the valve body (1), of the upper valve core (3), and the upper communicating port of the communicating groove I (4) is located below the limiting ring I (2).

3. A valve structure for automobile tires according to claim 2, characterized in that: when the middle valve core (5) moves downwards to the lowest part along with the upper valve core (3), the communication port of the vent hole (6) is always in a mutually overlapped state with the lower circular boss of the middle valve core (5), and the communication port of the vent hole (6) and the lower circular boss of the middle valve core (5) are mutually staggered in the initial state.

4. A valve structure for automobile tires according to claim 3, characterized in that: the upper communication port of the communication groove II (11) and the lower valve core (7) are overlapped in the initial state, and the lower communication port of the communication groove II (11) is located below the limiting ring II (9).

Technical Field

The invention relates to the technical field of valve structures, in particular to a valve structure for an automobile tire.

Background

The valve is an essential component in a pneumatic tire, and is a valve body structure which is always in a closed and sealed state under a normal state so as to effectively prevent gas in the tire from escaping, and when the tire needs to be deflated or inflated, the valve body structure needs to abut against a valve core in the valve body so as to open the valve, so that the deflation or inflation operation of the tire is realized.

Therefore, with the existing inflating valve structure, when the tire is inflated by using the high-pressure inflating head, for convenience of use, a mandril is arranged in the high-pressure inflating head to automatically jack a valve core in the inflating valve when the tire is inflated by the high-pressure inflating head, so that the inflating operation of the tire is realized, but in the process of taking off the high-pressure inflating head, the valve core in the inflating valve is in a jack-up state by the mandril in the high-pressure inflating head, so that the gas in the tire can have a transient leakage condition, and the problem that the air pressure in the tire is smaller than the preset air pressure is caused;

further, even when the tire is pre-charged with a high air pressure, the leakage amount of the tire gas varies due to the skill of the operator for removing the high-pressure inflation head, and the air pressure of the tire deviates from the preset air pressure value.

Therefore, there is a need for a valve structure for an automobile tire to solve the above-mentioned drawbacks of the conventional valve, so as to ensure that the air pressure in the automobile tire is kept the same as the preset air pressure value.

Disclosure of Invention

Technical problem to be solved

The invention provides a valve structure for an automobile tire, which has the advantages of no tire gas leakage in the process of taking off a high-pressure inflation head, capability of ensuring that the air pressure in the automobile tire is kept the same as a preset air pressure value, more accurate pressure adjustment for a steam turbine tire, higher stability and reliability, and solves the problems of the existing valve structure, when the high-pressure inflation head is used for inflating the tire, a mandril is arranged in the high-pressure inflation head for convenient use, to automatically push open a valve core inside a valve when a tire is inflated, and to thereby perform an inflation operation of the tire, however, in the process of taking off the high-pressure inflating head, the valve core inside the inflating valve is in a jacking state due to the ejector rod inside the inflating head, so that the gas inside the tire can be temporarily leaked, and the problem that the air pressure inside the tire is smaller than the preset air pressure is caused.

(II) technical scheme

The invention provides the following technical scheme: a valve structure for an automobile tire comprises a valve body, wherein a set of limit ring I and a set of limit ring II are respectively arranged between the top of an inner cavity of the valve body and the bottom of the inner cavity, an upper valve core is movably sleeved at the top of the inner cavity of the valve body and positioned below the limit ring I, a communicating groove I is formed in the top of the valve body, a middle valve core is movably sleeved at the middle of the inner cavity of the valve body and positioned below the upper valve core, a curved groove is formed in the top end of the upper valve core, a vent hole communicated with the outside of the valve body is formed in the middle of the valve body, a lower valve core is movably sleeved at the bottom of the inner cavity of the valve body, the middle valve core and the lower valve core are in transmission connection through a first pressure spring, the middle valve core is formed by combining and splicing an upper group of circular bosses and a lower group of circular bosses, and communicating holes communicated with the upper end and the lower end of the circular bosses of the middle valve core are formed in the periphery of the lower circular bosses of the middle valve core, the lower valve core is in transmission connection with the limiting ring II through a second pressure spring, and a U-shaped structure communication groove II is formed in the bottom of the inflating valve body.

Preferably, the distance between the upper and lower communicating ports of the inner cavity of the positioning connecting rod is greater than the height of the part, with the same size as the inner diameter of the valve body of the inflating valve, of the upper valve core, and the upper communicating port of the communicating groove I is located below the limiting ring I.

Preferably, the vent hole communication port is always overlapped with the lower circular boss of the middle valve core when the middle valve core moves downwards to the lowest part along with the upper valve core, and the communication port of the vent hole and the lower circular boss of the middle valve core are staggered in the initial state.

Preferably, the upper communication port of the communication groove II and the lower valve core are overlapped in an initial state, and the lower communication port of the communication groove II is located below the limiting ring II.

(III) advantageous effects

The invention has the following beneficial effects:

1. this a valve structure for automobile tire, to the setting of upper valve core, well valve core and lower valve core, utilize the high-pressure draught when aerifing the tire and open this valve structure, and when closing the high-pressure inflation head, earlier discharge remaining gas in the valve body inner chamber of valve, utilize the lower valve core again rapidly and block up intercommunication groove II, compare with current valve structure, can avoid effectively taking off the problem that the tire gas leaks appearing in the in-process of high-pressure inflation head, make the atmospheric pressure that fills in this automobile tire can keep the same state with the atmospheric pressure value that predetermines, it is comparatively accurate to the adjustment of its pressure.

2. This a inflating valve structure for automobile tire to the setting of intercommunication groove II, both can realize two cavities by the lower valve core partitioned in the inflating valve body, simultaneously, change the direction of high-pressure gas in this automobile tire to the lower valve core direction of action again, make its atress direction when moving from top to bottom with the lower valve core mutually perpendicular, and then improved its sealed effect to intercommunication groove II effectively, avoided the high-pressure gas that fills in this automobile tire to take place the phenomenon of "escaping", stability and reliability are higher.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of a valve body of a structural valve of the present invention;

FIG. 3 is a schematic structural view of an upper valve core of the present invention;

FIG. 4 is a schematic structural view of the valve cartridge of the present invention;

fig. 5 is a schematic structural diagram of the lower valve core of the invention.

In the figure: 1. a valve body of the valve; 2. a limiting ring I; 3. an upper valve core; 4. a communicating groove I; 5. a middle valve core; 6. a vent hole; 7. a lower valve core; 8. a first pressure spring; 9. a limiting ring II; 10. a second pressure spring; 11. a communicating groove II; 12. a curved surface groove; 13. positioning a slotted hole I; 14. positioning the connecting rod; 15. a communicating hole; 16. and a positioning slotted hole II.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a valve structure for an automobile tire comprises a valve body 1, a set of a limiting ring i 2 and a limiting ring ii 9 are respectively arranged between the top of an inner cavity of the valve body 1 and the bottom of the inner cavity, wherein the limiting ring i 2 is of a structure with an opening in the middle, the limiting ring ii 9 is of a sealed circular plate-shaped structure, an upper valve core 3 is movably sleeved on the top of the inner cavity of the valve body 1 below the limiting ring i 2, as shown in fig. 2, a communication groove i 4 of a U-shaped structure is formed in the top of the valve body 1 to communicate two chambers separated by the upper valve core 3 in the valve body 1, a middle valve core 5 is movably sleeved on the middle of the inner cavity of the valve body 1 below the upper valve core 3, as shown in fig. 3, a curved groove 12 is formed in the top of the upper valve core 3 to increase the contact area between the upper valve core 3 and high-pressure gas, further reducing the impact damage caused by high pressure gas, and setting a positioning slot I13 at the bottom of the upper valve core 3, setting a vent hole 6 connected to the outside of the valve body 1 at the middle part of the valve body 1, movably sleeving a lower valve core 7 at the bottom of the inner cavity of the valve body 1, and connecting the middle valve core 5 and the lower valve core 7 through a first pressure spring 8, as shown in figure 4, the middle valve core 5 is formed by assembling and splicing an upper group and a lower group of circular bosses, the middle part of the middle valve core 5 is provided with a positioning connecting rod 14 penetrating to the upper end and the lower end, the top end of the positioning connecting rod 14 is movably sleeved with the positioning slot I13 on the upper valve core 3, the periphery of the lower circular boss of the middle valve core 5 is provided with a communicating hole 15 connected to the upper end and the lower end, for the arrangement of the communicating hole 15 on the middle valve core 5, effectively guiding the flow of the high pressure gas, the lower valve core 7 is in transmission connection with a limit ring II 9 through a second pressure spring 10, the bottom of the outer surface of the valve body 1 is positioned between the lower valve core 7 and the limiting ring II 9 and is provided with a through hole communicated to the inside of the valve body so as to balance the air pressure inside the valve body in the process that the lower valve core 7 moves up and down, the bottom of the valve body 1 is provided with a U-shaped structure communication groove II 11 used for communicating two chambers separated by the lower valve core 7 in the inner cavity of the valve body 1, as shown in figure 5, the top end of the lower valve core 7 is provided with a positioning groove hole II 16, and the positioning groove hole II 16 is movably sleeved with the bottom end of a positioning connecting rod 14 on the middle valve core 5.

The arrangement of the positioning connecting rod 14 on the middle valve core 5 is used for increasing the linkage among the upper valve core 3, the middle valve core 5 and the lower valve core 7, so that the abrasion of the upper valve core 3 and the lower valve core 7 on the inner wall of the valve body 1 of the valve nozzle under the impact of high-pressure gas is reduced, and the service life of the valve nozzle structure is effectively prolonged.

In the technical scheme, the distance between the upper and lower communicating ports of the inner cavity of the positioning connecting rod 14 is greater than the height of the part, with the same size as the inner diameter of the valve body 1, of the upper valve core 3, the upper communicating port of the communicating groove I4 is located below the limiting ring I2, so that the two chambers separated by the upper valve core 3 in the valve body 1 are sealed when the upper valve core 3 is located in an initial state, and the two chambers separated by the upper valve core 3 in the valve body 1 are communicated when the upper valve core 3 is impacted by high-pressure gas to move downwards.

In the technical scheme, when the middle valve core 5 moves downwards to the lowest part along with the upper valve core 3, the communication port of the vent hole 6 always keeps a mutually overlapped state with the lower circular boss of the middle valve core 5, and the communication port of the vent hole 6 and the lower circular boss of the middle valve core 5 are mutually staggered in the initial state.

The initial position between the middle valve core 5 and the vent hole 6 is limited to ensure that the valve structure can keep plugging action on the vent hole 6 in an inflation state, so that the condition that high-pressure gas leaks and loses is effectively avoided;

when the high-pressure inflation head is taken down after inflation, under the elastic force action of the first pressure spring 8 and the second pressure spring 10, the gas in the high-pressure inflation head is automatically discharged to realize the plugging operation of the communicating groove II 11, so that the condition that the gas in the tire is temporarily leaked in the process of completing the inflation of the tire and taking down the high-pressure inflation head is effectively avoided.

In the technical scheme, the upper communication port of the communication groove II 11 and the lower valve core 7 are overlapped in the initial state, and the lower communication port of the communication groove II 11 is positioned below the limiting ring II 9.

The arrangement of the communicating groove II 11 can realize two chambers separated by the lower valve core 7 in the inflating valve body 1, and simultaneously change the direction of the acting force of the high-pressure gas in the tire on the lower valve core 7, so that the high-pressure gas is perpendicular to the acting force of the lower valve core 7 when moving up and down, the sealing effect of the high-pressure gas on the communicating groove II 11 is effectively improved, and the phenomenon that the high-pressure gas filled in the tire escapes is avoided.

The use method and the working principle of the embodiment are as follows:

firstly, fixedly mounting the valve structure on a tire;

when the tire needs to be inflated, a high-pressure inflation head is fixedly arranged at the top of the valve body 1, the upper valve core 3 is impacted by high-pressure gas, the upper valve core 3 is driven to move downwards, the middle valve core 5 and the lower valve core 7 are forced to move downwards to respectively compress the first pressure spring 8 and the second pressure spring 10, so that the communication groove I4 is communicated to guide high-pressure gas flow to enter the top of the inner cavity of the valve body 1 and enter the bottom of the inner cavity of the valve body 1 through the communication hole 15 in the middle valve core 5, and meanwhile, the communication groove II 11 is communicated in the downward movement process of the lower valve core 7, so that the high-pressure gas enters the tire through the communication groove II 11, and the inflation operation of the tire is realized;

after the tire is inflated, at the moment of closing the high-pressure inflation head, the upper valve core 3 loses the impact of the high-pressure gas, and under the action of the elastic force of the first pressure spring 8, the middle valve core 5 and the upper valve core 3 are driven to move upwards, so that the middle valve core 5 is restored to the initial position to be communicated with the vent hole 6, the gas in the middle of the inner cavity of the valve body 1 of the valve is discharged, and meanwhile, under the action of the elastic force of the second pressure spring 10, the lower valve core 7 can be quickly restored to the initial position to block the communication groove II 11, so that the phenomenon that the high-pressure gas filled in the tire leaks is effectively avoided.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.