CN201597399U - Tire burst-resisting pressure limiting device - Google Patents
Tire burst-resisting pressure limiting device Download PDFInfo
- Publication number
- CN201597399U CN201597399U CN2009202658617U CN200920265861U CN201597399U CN 201597399 U CN201597399 U CN 201597399U CN 2009202658617 U CN2009202658617 U CN 2009202658617U CN 200920265861 U CN200920265861 U CN 200920265861U CN 201597399 U CN201597399 U CN 201597399U
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- Prior art keywords
- pore
- limiting device
- pressure limiting
- runflat
- elastic element
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- 239000011148 porous material Substances 0.000 claims description 47
- 230000004308 accommodation Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 230000006837 decompression Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model relates to a tire burst-resisting pressure limiting device comprising a tire, an air valve, a first elastic element and a second elastic element, wherein the tire is provided with a containing space; at least part of the air valve enters the holding space; two ends of the air valve are respectively provided with a first air hole and a second air hole which is communicated with the containing space; the side ends of the air valve are respectively provided with a third air hole and a fourth air hole, and the third air hole is in the containing space; the air valve is also internally provided with a first channel and a second channel, wherein the first channel is connected with the first air hole and the third air hole, while the second channel is connected with the second air hole and the fourth air hole; the first elastic element wraps the external of the air valve and precisely seals the third air hole elastically; and the second elastic element wraps the external of the air valve and precisely seals the fourth air hole. The tire burst-resisting pressure limiting device can achieve the function of resisting tire burst and limiting pressure only by the match of the air valve with the two elastic elements, thus reducing cost, improving production efficiency and having good air sealing and air discharging effects.
Description
[technical field]
The utility model relates to a kind of runflat device, refers to a kind of pressure limiting device that prevents that wheel from blowing out especially.
[background technology]
When tire is being exposed to the sun under the sun maybe when inflation is too much, the temperature of tire will raise and then cause tire internal gas expanded by heating and air pressure is increased, in case when air pressure increases to the specified air pressure that can bear above tire, will blow out, so not only shortened the service life of tire but also had safety traffic hidden danger.
In order to solve the problem that wheel is blown out, prior art such as China's Mainland patent CN200610021260 have disclosed a motor vehicle wheel automatic decompression explosion-proof safety nozzle, and it is made of pull bar, tracheae, band awl envelope compression ring, exhaust sealing cushion rubber, spring, deflation hole, envelope hermetic seal rubber ring, envelope gas bowl and gas nozzle cap with holes.
When inflation, to pressing down, pull bar promotes to seal the gas bowl downwards makes the envelope hermetic seal rubber ring leave the through hole of tracheae dividing plate with holes center to the charging blower valve with pull bar, and high pressure air enters tire from the slit between band awl ventilation ring inner ring and the pull bar; When the tire internal gas pressure surpasses the normal pressure value, the pressure that air produced in the tire will be with awl envelope compression ring and exhaust sealing cushion rubber upwards to back down, and the air in the tire will be discharged from deflation hole; When atmospheric pressure in the tire was got back to the normal pressure value, band awl ventilation ring and exhaust sealing cushion rubber moved downward under the tension of spring, block deflation hole, and exhaust is stopped.
Though this motor vehicle wheel automatic decompression explosion-proof safety nozzle has the function of automatic decompression, there is following disappearance in it:
1. form the complex structure of this motor vehicle wheel automatic decompression explosion-proof safety nozzle and be difficult for assembling, thereby increased productive costs and reduced production efficiency.
2. because exhaust sealing cushion rubber and envelope hermetic seal rubber ring all are to be bonded on other parts, thereby come off easily, thereby can't play the purpose of exhaust and envelope gas.
3. owing to use same spring when its air inlet and exhaust, thus spring frequency of utilization height, elastic fatigue easily, thus the performance of safe air valve influenced.
Therefore, be necessary to design a kind of new runflat device, to overcome above-mentioned defective.
[utility model content]
At the variety of problems that is faced in the background technology, the utility model provides a kind of runflat pressure limiting device, and it matches with two elastic elements by a valve, can reach the function of runflat, thereby reduced productive costs, improved production efficiency, and envelope gas and disappointing effective.
To achieve these goals, the utility model adopts following technical scheme: a kind of runflat pressure limiting device comprises: a tire, and it has an accommodation space; One valve enters described accommodation space to small part; Described valve two ends are respectively equipped with one first pore and one second pore, and described second pore is connected with described accommodation space; And be respectively equipped with one the 3rd pore and one the 4th pore in described valve side, and described the 3rd pore is positioned at described accommodation space; Also have a first passage and a second channel in the described valve, wherein said first passage connects described first pore and described the 3rd pore, and described second channel connects described second pore and described the 4th pore; One first elastic element is coated on outer and proper described the 3rd pore of enclosed elastic of described valve; One second elastic element is coated on outer and proper described the 4th pore of enclosed elastic of described valve.
Compared with prior art, the utlity model has following advantage:
1. described runflat pressure limiting device simple in structure saved productive costs greatly.
2. described runflat pressure limiting device is easy to assembly, has effectively improved production efficiency.
3. because different elastic elements is used in air inlet when disappointing, thereby be difficult for producing elastic fatigue, guarantee that described runflat pressure limiting device has good performance.
Your juror all further understanding and understanding can be arranged for ease of, to elaborate below in conjunction with embodiment and accompanying drawing to the purpose of this utility model, method and effect thereof.
[description of drawings]
Fig. 1 is the exploded drawings of the utility model runflat pressure limiting device;
Fig. 2 is the assembly drawing of the utility model runflat pressure limiting device;
The runflat pressure limiting device was along the cutaway view of A-A line when Fig. 3 was the utility model air inlet;
Fig. 4 be in the utility model tire inner gas pressure when specified air pressure the runflat pressure limiting device along the cutaway view of A-A line;
Fig. 5 be the utility model tire internal gas pressure when surpassing specified air pressure the runflat pressure limiting device along the cutaway view of A-A line.
The drawing reference numeral explanation of the specific embodiment
Tire 1 accommodation space 11 valves 2 first pores 21
Locking part 6 spaces 7
[specific embodiment]
Below in conjunction with the drawings and specific embodiments the utility model runflat pressure limiting device is further elaborated.
Please refer to shown in Figure 1ly, the utility model runflat pressure limiting device comprises: a tire 1, one valve 2, one first elastic element 3, one second elastic elements, 4, one bases 5 and locking parts 6.
Please refer to Fig. 3 to shown in Figure 5, described tire 1 has an accommodation space 11 to accommodate gas in it.
Described valve 2 is roughly "+" font, and its bottom to small part enters in the described accommodation space 11.The top of described valve 2 is provided with one first pore 21 and the bottom is provided with one second pore 22, and described second pore 22 is connected with described accommodation space 11; And the lower side that closes on described valve 2 bottoms be provided with one the 3rd pore 23 and closing on described valve 2 tops on the side be provided with one the 4th pore 24.Also have a first passage 25 and a second channel 26 in the described valve 2, wherein said first passage 25 connects described first pores 21 and described the 3rd pore 23 being used for air inlet, and described second channel 26 connects described second pores 22 and described the 4th pore 24 and loses heart being used for.
Please refer to 3 to shown in Figure 5, described first elastic element 3 is the belows that are sheathed on described valve 2.Described second elastic element 4 is the tops that are sheathed on described valve 2.
In the present embodiment, described first elastic element 3 and described second elastic element 4 adopt with a kind of material, and promptly both all are rubber bands of being made by rubber, but described first elastic element 3 is thicker than described second elastic element 4.Certainly, described first elastic element 3 also can adopt unlike material with described second elastic element 4, as long as it satisfies the withstand voltage ability to bear of the withstand voltage ability to bear of described first elastic element 3 greater than described second elastic element 4.
In the present embodiment; described base 5 is integrated with described tire 1; its bottom end opening is connected with described accommodation space 11; and described base 5 be coated on described first elastic element 3 outer and and described first elastic element 3 between have a space 7, to protect described first elastic element 3 and to can be used to support described valve 2 conveniently to inflate.Certainly, also described base 5 can be set, directly described valve 2 is adhered to or is mounted on the described tire 1, make described valve 2 parts enter described accommodation space 11 and get final product, also be positioned at described accommodation space 11 but the degree of depth that this moment, described valve 2 entered described accommodation space 11 must satisfy described the 3rd pore 23.
Please refer to Fig. 1 to shown in Figure 5; described in the present embodiment locking part 6 is a nut; it cooperates threadably with described base 5; prevent to lose heart to be used for locking described valve 2 and described base 5, and described locking part 6 also is coated on, and described second elastic element 4 is outer can protect described second elastic element 4.
When described runflat pressure limiting device is assembled, elder generation is sheathed on described first elastic element 3 and described second elastic element 4 respectively the above and below of described valve 2, then its integral body is mounted in the described base 5, at last described locking part 6 is screwed together in described base 5 outer getting final product.
Please refer to shown in Figure 3, when inflation, gas enters described valve 2 from described first pore 21 along described first passage 25, when gas arrives described the 3rd pore 23, described space 7 places of described first elastic element 3 between described base 5 and described first elastic element 3 are pushed, produce a slit between described first elastic element 3 and described the 3rd pore 23 so that gas enters described tire 1 thereby make.
Please refer to shown in Figure 4ly, when inner gas pressure was at specified air pressure in the described tire 1, described first elastic element 3 and described second elastic element 4 enclosed elastic residence were respectively stated the 3rd pore 23 and described the 4th pore 24.
Please refer to shown in Figure 5, when inflation causes the air pressure inside of described tire 1 to surpass its specified air pressure that can bear too much or because of situations such as the sun are exposed to the sun, gas will be from described second pore 22 along described second channel 26 upper punches to described the 4th pore 24 in the described tire 1, and then push described second elastic element 4 and make and produce a slit between itself and described the 4th pore 24 so that unnecessary gas is discharged, prevent that described tire 1 internal gas pressure is excessive and blow out.
Please refer to shown in Figure 4, cross when the Pneumatic pipe cleaner in the described tire 1 and to efflux and when being reduced to specified air pressure, described second elastic element 4 restores again and blocks described the 4th pore 24 gas is no longer effluxed, thereby guarantees that described tire 1 internal gas pressure remains in the specified air pressure.
In sum, the utility model runflat pressure limiting device has following advantage:
1. because described runflat pressure limiting device simple in structure can be saved productive costs.
2. because described runflat pressure limiting device is easy to assembly, effectively improved production efficiency.
3. because different described elastic elements is used in air inlet when disappointing, thereby be difficult for producing elastic fatigue, thereby guarantee that described runflat pressure limiting device has good performance.
4. described first elastic element and described second elastic element all are sheathed on outside the described valve, so when unexpected or use when damaging because of long-time, replacing and convenient for maintaining easily.
5. can reduce pressure automatically owing to described runflat pressure limiting device, so its actv. has prolonged the life-span of described tire.
In the present embodiment, described runflat pressure limiting device is to be used for bicycle, but on it also waits for bus applicable to motor bike, single wheel cycle.Above-mentioned explanation is the detailed description at the preferable possible embodiments of the utility model, but embodiment is not in order to limit patent claim of the present utility model, equal variation that the technical spirit that all the utility model disclosed is finished down or modification change all should belong to claim that the utility model is contained.
Claims (9)
1. a runflat pressure limiting device is characterized in that, comprising:
One tire, it has an accommodation space;
One valve enters described accommodation space to small part; Described valve two ends are respectively equipped with one first pore and one second pore, and described second pore is connected with described accommodation space; And be respectively equipped with one the 3rd pore and one the 4th pore in described valve side, and described the 3rd pore is positioned at described accommodation space; Also have a first passage and a second channel in the described valve, wherein said first passage connects described first pore and described the 3rd pore, and described second channel connects described second pore and described the 4th pore;
One first elastic element is coated on outer and proper described the 3rd pore of enclosed elastic of described valve;
One second elastic element is coated on outer and proper described the 4th pore of enclosed elastic of described valve.
2. runflat pressure limiting device as claimed in claim 1 is characterized in that: described first passage is a free air diffuser, and described second channel is the passage that loses heart.
3. runflat pressure limiting device as claimed in claim 1 is characterized in that: described first elastic element is one first rubber band, and described second elastic element is one second rubber band.
4. runflat pressure limiting device as claimed in claim 3 is characterized in that: described first rubber band is identical with the material of described second rubber band.
5. runflat pressure limiting device as claimed in claim 3 is characterized in that: described first rubber band is different with the material of described second rubber band.
6. runflat pressure limiting device as claimed in claim 1 is characterized in that: described tire also comprises a base, and the bottom end opening of described base is connected with described accommodation space.
7. runflat pressure limiting device as claimed in claim 6 is characterized in that: described base and described tire are one-body molded.
8. runflat pressure limiting device as claimed in claim 6 is characterized in that: described base is coated on outside described first elastic element.
9. runflat pressure limiting device as claimed in claim 6 is characterized in that: described runflat pressure limiting device also comprises a locking part, and described locking part is a nut, and itself and described base are with threads engaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202658617U CN201597399U (en) | 2009-12-29 | 2009-12-29 | Tire burst-resisting pressure limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202658617U CN201597399U (en) | 2009-12-29 | 2009-12-29 | Tire burst-resisting pressure limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201597399U true CN201597399U (en) | 2010-10-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202658617U Expired - Lifetime CN201597399U (en) | 2009-12-29 | 2009-12-29 | Tire burst-resisting pressure limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201597399U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358835A (en) * | 2012-04-10 | 2013-10-23 | 宝磊股份有限公司 | Tubeless integrated air valve |
| CN104832687A (en) * | 2014-02-10 | 2015-08-12 | 杜永财 | Tire pressure-limiting air nozzle |
-
2009
- 2009-12-29 CN CN2009202658617U patent/CN201597399U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358835A (en) * | 2012-04-10 | 2013-10-23 | 宝磊股份有限公司 | Tubeless integrated air valve |
| CN104832687A (en) * | 2014-02-10 | 2015-08-12 | 杜永财 | Tire pressure-limiting air nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101006 |