CN214093185U - Pressure maintaining valve for pneumatic tire - Google Patents

Abstract

The utility model provides a surge damping valve for pneumatic tire, a surge damping valve for pneumatic tire includes the valve body, sealing member and elastic component, be equipped with the next door in the valve body, the next door falls into first cavity and second cavity with the inner chamber of valve body, be equipped with the gas leakage mouth with first cavity and second cavity intercommunication on the next door, first cavity has disappointing mouthful, the second cavity has the connection air inlet, the movably setting of sealing member is in first cavity, with sealed or open the gas leakage mouth, the elastic component sets up in first cavity, the first end of elastic component ends to the sealing member, the second end of elastic component ends to the valve body. The utility model provides a surge damping valve for pneumatic tire has and adjusts pneumatic tire to settlement pressure, improves the advantage of riding passerby's the comfort level of riding from this.

Description

Pressure maintaining valve for pneumatic tire

Technical Field

The utility model relates to a pneumatic tire technical field, concretely relates to surge damping valve for pneumatic tire.

Background

In the related art, when the pneumatic tire is stored, transported or used, the internal air pressure of the pneumatic tire is gradually reduced, and when the internal air pressure of the pneumatic tire is too low, the riding comfort of a rider is lowered. Meanwhile, since the inflation of the pneumatic tire is unstable, when the internal air pressure of the pneumatic tire is too high due to excessive inflation of the pneumatic tire, the riding comfort of the rider is also affected.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, the embodiment of the utility model provides a pressure stabilizing valve for pneumatic tire, this pressure stabilizing valve for pneumatic tire have with pneumatic tire regulation to settlement pressure, thereby improve the advantage of riding passerby's the comfort level of riding.

The pressure stabilizing valve for the pneumatic tire comprises a valve body, a sealing element and an elastic element, wherein a partition wall is arranged in the valve body, an inner cavity of the valve body is divided into a first cavity and a second cavity by the partition wall, a gas leakage port for communicating the first cavity with the second cavity is formed in the partition wall, the first cavity is provided with a gas leakage port, and the second cavity is provided with a connecting gas inlet; the sealing element is movably arranged in the first cavity to seal or open the air leakage port; the elastic piece is arranged in the first cavity, the first end of the elastic piece abuts against the sealing piece, and the second end of the elastic piece abuts against the valve body.

The utility model discloses a surge damping valve for pneumatic tire links to each other the back with valve body and pneumatic tire's valve needle through connecting the air inlet, and the assembly is opened the valve needle at the gassing needle of second cavity, and pneumatic tire's inner chamber and second cavity intercommunication from this, and then the atmospheric pressure of second cavity is the same with pneumatic tire's inside atmospheric pressure. When the internal air pressure of the pneumatic tire is higher than the set air pressure, the acting force of the air pressure of the second chamber on the sealing member is larger than the minimum pushing force of the elastic member on the sealing member. Thereby make the sealing member push away from the next door so that the gas leakage mouth opens, and then the second cavity passes through the gas leakage mouth with first cavity and communicates, and the inside gas of pneumatic tire passes through the gas leakage mouth and discharges to first cavity to discharge the external world through the gas leakage mouth afterwards, and the inside atmospheric pressure of pneumatic tire keeps reducing from this.

When the internal air pressure of the pneumatic tire reaches the set pressure, the force applied to the sealing member by the air pressure of the second chamber is equal to the minimum thrust force applied to the sealing member by the elastic member. The sealing piece stops the next door again and seals the air leakage port, so that the continuous exhaust of the pneumatic tire is prevented, the pressure stabilizing valve for the pneumatic tire completes the regulation of the internal air pressure of the pneumatic tire, and the riding comfort of a rider is improved.

In some embodiments, the valve body includes a housing and a cover, the inner cavity of the housing is divided into a first inner cavity portion and a second inner cavity portion by the partition, the second inner cavity portion forms the second cavity, the housing is connected to the cover so that the inner cavity of the cover and the first inner cavity portion form the first cavity, and the air release port is formed in the housing and/or the cover.

In some embodiments, the housing is removably connected to the cover.

In some embodiments, the housing is provided with a buckle, and the cover is provided with a slot, which is engaged with the buckle.

In some embodiments, the elastic member is a spring, the sealing member includes a sealing plate and a guide pillar disposed above the sealing plate, and a first end of the spring is sleeved on the guide pillar and abuts against the sealing plate.

In some embodiments, the inner cavity of the cover includes a guide cavity portion, and the second end of the spring is disposed in the guide cavity portion and abuts the cover.

In some embodiments, the surge tank valve for a pneumatic tire further comprises a grip ring fitted within the second chamber through the connection inlet port.

In some embodiments, the peripheral wall of the second chamber is provided with an internal thread for screw-fitting with a valve pin of a tire.

In some embodiments, the pressure maintenance valve for a pneumatic tire further comprises a bleed needle disposed on the bulkhead and within the second chamber.

In some embodiments, the deflation needle is integrally formed with the septum.

Drawings

Fig. 1 is a schematic view of a pressure maintaining valve for a pneumatic tire according to an embodiment of the present invention.

Fig. 2 is another schematic view of a pressure maintenance valve for a pneumatic tire according to an embodiment of the present invention.

Fig. 3 is a sectional view of a pressure maintaining valve for a pneumatic tire according to an embodiment of the present invention.

Fig. 4 is an exploded view of a pressure maintaining valve for a pneumatic tire according to an embodiment of the present invention.

Reference numerals:

the pressure stabilizing valve 100 for the pneumatic tire, the valve body 1, the shell 101, the buckle 1011, the partition 1012, the step 1013, the cover 102, the clamping groove 1021, the first cavity 103, the second cavity 104, the air leakage opening 105, the air leakage opening 106, the connecting air inlet 107, the sealing element 2, the sealing plate 201, the guide pillar 202, the elastic element 3, the air release needle 4 and the clasping ring 5.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

A surge damping valve 100 for a pneumatic tire according to an embodiment of the present invention will be described below with reference to fig. 1 to 4.

As shown in fig. 1 to 4, a surge damping valve 100 for a pneumatic tire according to an embodiment of the present invention includes a valve body 1, a sealing member 2, and an elastic member 3. A partition 1012 is provided in the valve body 1, and the partition 1012 divides the inner cavity of the valve body 1 into the first chamber 103 and the second chamber 104. The first chamber 103 and the second chamber 104 are arranged in parallel in the vertical direction, the first chamber 103 is located above the partition 1012, and the second chamber 104 is located below the partition 1012.

The partition wall 1012 is provided with a leak 105 for communicating the first chamber 103 with the second chamber 104, the first chamber 103 has a leak 106, and the second chamber 104 has a connection inlet 107. The air relief port 106 communicates the first chamber 103 with the outside, and the connection air inlet port 107 communicates the second chamber 104 with the outside. The second chamber 104 can be equipped with a deflation needle 4 for opening the valve needle, and at the same time, the valve body 1 can be connected with the valve needle of the pneumatic tire through the connecting air inlet 107, so that the deflation needle 4 opens the valve needle, and the inner cavity of the pneumatic tire is communicated with the second chamber 104.

A seal 2 is movably arranged in the first chamber 103 to seal or open the leakage orifice 105. As shown in fig. 4, when the seal 2 abuts against the upper end surface of the partition wall 1012, the seal 2 seals the leak port 105, thereby achieving isolation of the first chamber 103 and the second chamber 104.

The resilient member 3 is arranged in the first chamber 103, a first end of the resilient member 3 abutting the sealing member 2 and a second end of the resilient member 3 abutting the valve body 1. As shown in fig. 4, the lower end of the elastic member 3 abuts against the upper end face of the sealing member 2, and the upper end of the elastic member 3 abuts against the upper end wall of the first chamber 103. The elastic member 3 normally urges the sealing member 2 against the upper end surface of the partition 1012, thereby ensuring the sealing of the leakage orifice 105 by the sealing member 2. Meanwhile, when the sealing member 2 abuts against the partition wall 1012, the urging force given to the sealing member 2 by the elastic member 3 is minimized.

The utility model discloses a surge damping valve 100 for pneumatic tire links to each other the back with valve body 1 and pneumatic tire's valve needle through connecting air inlet 107, and the assembly is opened the valve needle at the gassing needle 4 of second cavity 104, and pneumatic tire's inner chamber and second cavity 104 intercommunication from this, and then the atmospheric pressure of second cavity 104 is the same with pneumatic tire's inside atmospheric pressure. When the internal air pressure of the pneumatic tire is greater than the set air pressure, the force applied to the seal member 2 by the air pressure of the second chamber 104 is greater than the minimum thrust force applied to the seal member 2 by the elastic member 3. Thereby causing the seal member 2 to be pushed away from the partition wall 1012 to open the leakage port 105, and the second chamber 104 communicates with the first chamber 103 through the leakage port 105, and the gas inside the pneumatic tire is discharged to the first chamber 103 through the leakage port 105 and then discharged to the outside through the leakage port 106, whereby the internal air pressure of the pneumatic tire is continuously reduced.

When the internal air pressure of the pneumatic tire reaches the set pressure, the force imparted to the seal member 2 by the air pressure of the second chamber 104 is equal to the minimum thrust imparted to the seal member 2 by the elastic member 3. The sealing member 2 stops the partition wall 1012 again and seals the puncture hole 105, thereby preventing the continued exhaust of the pneumatic tire, and the regulator valve 100 for the pneumatic tire completes the regulation of the internal air pressure of the pneumatic tire, improving the riding comfort of the rider.

It should be noted that when the internal air pressure of the pneumatic tire is higher than the set pressure, the adjustment can be performed by the regulator valve 100 for the pneumatic tire. When the internal air pressure of the pneumatic tire is smaller than the set pressure, the pneumatic tire can be inflated and pressurized first, and then regulated to the set pressure through the pressure stabilizing valve 100 for the pneumatic tire.

For ease of understanding, arrow a in fig. 4 shows the left-right direction of the regulator valve 100 for a pneumatic tire, and arrow B in fig. 4 shows the up-down direction of the regulator valve 100 for a pneumatic tire.

In some embodiments, the valve body 1 includes a housing 101 and a cover 102, and an inner cavity of the housing 101 is divided into a first inner cavity portion and a second inner cavity portion by a partition 1012. The second interior portion forms a second chamber 104 and the housing 101 is connected to the cover 102 such that the interior of the cover 102 and the first interior portion form a first chamber 103. A relief vent 106 is formed in the housing 101 and/or the cover 102.

As shown in fig. 1, 3 and 4, the first inner chamber portion in the housing 101 is located above the second inner chamber portion, and an upper end of the first inner chamber portion is open. The cover 102 is connected to the housing 101 to close the upper end opening of the first inner cavity portion, whereby the inner cavity of the cover 102 and the first inner cavity portion constitute a first chamber 103. The lower end opening of the second inner cavity portion is arranged, the second inner cavity portion constitutes the second chamber 104, and the lower end opening of the second inner cavity portion constitutes the connection inlet 107.

Further, the air escape port 106 may be provided on the housing 101. Alternatively, the air relief opening 106 may be provided in the cover 102. Still alternatively, air release openings 106 are formed in both the housing 101 and the cover 102. Therefore, the first chamber 103 can be communicated with the outside, and the redundant gas in the pneumatic tire can be discharged from the outside in time after entering the first chamber 103 from the second chamber 104.

Specifically, when the air release opening 106 is provided on the housing 101, the air release opening 106 is provided on the side wall of the housing 101 and above the partition wall 1012. When the air vents 106 are provided in the cover 102, as shown in fig. 1 and 4, the air vents 106 are four and are provided in the upper end of the cover 102.

In some embodiments, housing 101 is removably coupled to cover 102. Thereby facilitating the mounting, dismounting and replacement of the resilient member 3 and the sealing member 2 in the first chamber 103. In particular, the elastic member 3 having different elastic forces can be replaced, and the minimum thrust force given to the seal member 2 by the elastic member 3 can be changed, whereby the internal pressure of the pneumatic tire can be adjusted to different set pressures, and the versatility is enhanced.

In some embodiments, the housing 101 has a buckle 1011, the cover 102 has a slot 1021, and the slot 1021 is engaged with the buckle 1011.

As shown in fig. 1 to 3, the number of the hooks 1011 is three, and the three hooks 1011 are circumferentially disposed on the outer side wall of the housing 101 near the upper end at equal intervals. The side wall of the cover 102 near the lower end is provided with three slots 1021 penetrating through the side wall, and the three slots 1021 are circumferentially arranged at equal intervals and are in one-to-one correspondence with the three buckles 1011. Three slots 1021 on the cover 102 are engaged with three corresponding latches 1011 on the housing 101, thereby connecting the housing 101 and the cover 102.

Alternatively, the cover 102 and the housing 101 may be generally cylindrical, with the diameter of the cover 102 being equal to the diameter of the housing 101. The upper end of the housing 101 is provided with a step 1013, the diameter of the step 1013 is smaller than that of the housing 101, and three catches 1011 are provided on the outer side wall of the step 1013. The cap 102 is fitted over the step 1013, so that the assembled surge damping valve 100 for a pneumatic tire has a substantially cylindrical shape and a more beautiful appearance.

Cover 102 may be connected to housing 101 by screws, glue, ultrasonic welding, or screws.

In some embodiments, the elastic member 3 is a spring, and the sealing member 2 includes a sealing plate 201 and a guide pillar 202 disposed above the sealing plate 201, and a first end of the spring is sleeved on the guide pillar 202 and abuts against the sealing plate 201.

As shown in fig. 2 and 4, the partition wall 1012 in the casing 101 is of a flat plate structure, and four air leakage ports 105 are provided on the partition wall 1012 at circumferentially spaced intervals. The sealing member 2 is provided above the partition wall 1012, and the sealing plate 201 of the sealing member 2 is fitted to the upper end surface of the partition wall 1012 to seal the four air leakage ports 105. The spring is constantly in a compressed state, the lower end of the spring is sleeved on the guide post 202 of the sealing element 2 and abuts against the sealing plate 201, and the upper end of the spring abuts against the upper end wall of the cover body 102. The axis of the spring is thus substantially coincident with the axis of the resilient member 3, ensuring that the spring always urges the seal plate 201 accurately against the dividing wall 1012.

Optionally, the sealing element 2 is a soft elastomer, thereby ensuring a tight fit of the sealing element 2 to the partition 1012, further ensuring sealing against the leakage orifice 105.

The elastic member 3 may be a spring, a compression spring, or other compressible objects.

In some embodiments, the interior cavity of the cover 102 includes a guide cavity portion in which the second end of the spring is disposed and abuts the cover 102.

As shown in fig. 4, the diameter of the guide cavity is slightly larger than that of the spring, and the second end of the spring is in plug-in fit with the guide cavity, so that the circumferential direction of the spring is substantially vertical when the spring expands and contracts, and it is further ensured that the spring always pushes the sealing plate 201 to be pressed against the partition wall 1012 accurately.

In some embodiments, the stabilizing valve 100 for a pneumatic tire further includes a grip ring 5, the grip ring 5 fitting within the second chamber 104 through the connecting inlet port 107.

As shown in fig. 4, the grip ring 5 is made of an elastic material such as rubber, the grip ring 5 is inserted into the second chamber 104, and the grip ring 5 covers the inner sidewall of the second chamber 104. At this time, the clasping ring 5 is used for being in sleeve fit with a valve needle of the pneumatic tire, so that the valve needle is hermetically connected with the shell 101, and the gas inside the pneumatic tire is prevented from being accidentally discharged to the outside through the joint of the valve needle and the second chamber 104.

In some embodiments, the peripheral wall of the second chamber 104 is provided with an internal thread for screw-fitting with a valve pin of a tire. At this time, after the valve needle is in threaded fit with the second chamber 104, the joint of the valve needle and the second chamber 104 is substantially in a sealed state, and the gas inside the pneumatic tire can be prevented from being accidentally discharged to the outside through the joint of the valve needle and the second chamber 104.

In some embodiments, the pressure maintenance valve 100 for a pneumatic tire further includes a deflation needle 4 disposed on the bulkhead 1012 and located within the second chamber 104.

As shown in fig. 2 and 4, the deflation needle 4 extends in the up-down direction, and the upper end of the deflation needle 4 is connected to the lower end surface of the partition 1012. At this time, the surge tank valve 100 for a pneumatic tire may be directly assembled with the valve needle, i.e., the valve needle may be opened and the inner cavity of the pneumatic tire may be communicated with the second chamber 104. Whereby the use of the pressure maintaining valve 100 for a pneumatic tire is simple and convenient.

In some embodiments, the deflation needle 4 is integrally formed with the septum 1012. This increases the strength of connection between the deflation needle 4 and the partition wall 1012, and simplifies the structure of the regulator valve 100 for a pneumatic tire.

A surge damping valve 100 for a pneumatic tire according to a specific example of an embodiment of the present invention is described below with reference to fig. 1 to 4.

The surge damping valve 100 for a pneumatic tire according to an embodiment of the present invention includes a housing 101, a cover 102, a spring, a sealing member 2, and a clasping ring 5.

The upper end of the housing 101 is provided with a step 1013, and the outer wall surface of the step 1013 is provided with three catches 1011 distributed at equal intervals in the circumferential direction. The side wall of the cover 102 near the lower end is provided with three circumferential slots 1021 distributed at equal intervals, and the three slots 1021 correspond to the three buckles 1011 one by one. The cover 102 is sleeved and matched with the step 1013, and the three locking grooves 1021 are engaged with the corresponding three fasteners 1011, thereby realizing the connection between the housing 101 and the cover 102.

The housing 101 includes a partition 1012 provided in an inner cavity thereof, the partition 1012 dividing the inner cavity of the housing 101 into an upper first inner cavity portion and a lower second inner cavity portion. The inner cavity and the first inner cavity portion of the cover 102 constitute a first chamber 103 and the second inner cavity portion constitutes a second chamber 104. The lower end of the first chamber 103 forms a connection inlet 107. The partition wall 1012 is provided with four air leakage ports 105, and the first chamber 103 and the second chamber 104 communicate with each other through the four air leakage ports 105. The upper end of the cover 102 is provided with four air vents 106, and the second chamber 104 is communicated with the outside through the four air vents 106.

The seal 2 and the spring are both located within the first chamber 103. Specifically, the sealing member 2 includes a sealing plate 201 and a guide post 202 located above the sealing plate 201, the sealing plate 201 abuts against the upper end surface of the partition wall 1012, the lower end of the spring is sleeved on the guide post 202 and abuts against the sealing plate 201, and the upper end of the spring abuts against the upper end wall of the cover 102.

The grip ring 5 is fitted in the second chamber 104 via the connection inlet 107. The deflation needle 4 is located in the second chamber 104 and connected to the lower end surface of the partition 1012, the deflation needle 4 extends in the up-down direction, and the axis of the deflation needle 4 substantially coincides with the axis of the housing 101.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A pressure maintenance valve for a pneumatic tire, comprising:

the valve comprises a valve body, wherein a partition wall is arranged in the valve body, the partition wall divides an inner cavity of the valve body into a first cavity and a second cavity, an air leakage opening for communicating the first cavity with the second cavity is formed in the partition wall, the first cavity is provided with an air leakage opening, and the second cavity is provided with a connecting air inlet;

a seal movably disposed within the first chamber to seal or open the air leak; and

the elastic piece is arranged in the first cavity, the first end of the elastic piece abuts against the sealing piece, and the second end of the elastic piece abuts against the valve body.

2. A surge tank valve for a pneumatic tire according to claim 1, wherein said valve body comprises a housing and a cover, an inner cavity of said housing is divided into a first inner cavity portion and a second inner cavity portion by said partition wall, said second inner cavity portion constitutes said second chamber, said housing is connected to said cover so that an inner cavity of said cover and said first inner cavity portion constitute said first chamber, and said relief port is formed in said housing and/or said cover.

3. A pressure maintenance valve for a pneumatic tire as in claim 2, wherein said housing is removably connected to said cover.

4. A pressure maintaining valve for a pneumatic tire as claimed in claim 3, wherein said housing is provided with a snap, and said cover is provided with a snap groove, said snap groove being engaged with said snap.

5. A surge tank valve for a pneumatic tire as in claim 2, wherein said resilient member is a spring, and said sealing member comprises a sealing plate and a guide post disposed above said sealing plate, a first end of said spring being disposed over said guide post and abutting said sealing plate.

6. A pressure maintenance valve for a pneumatic tire as claimed in claim 5, wherein the inner chamber of the cover includes a guide chamber portion, the second end of the spring being disposed in the guide chamber portion and abutting the cover.

7. A surge valve for a pneumatic tire as in claim 1, further comprising a grip ring fitted through the connection inlet port in the second chamber.

8. A surge damping valve for a pneumatic tire as in claim 1, wherein the peripheral wall of said second chamber is provided with internal threads for threaded engagement with a valve pin of the tire.

9. A surge valve for a pneumatic tire according to any one of claims 1 to 8, further comprising a bleed needle provided on the partition wall and located within the second chamber.

10. A pressure maintaining valve for a pneumatic tire as claimed in claim 9, wherein said deflation needle is integrally formed with said bulkhead.

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