CN212928916U - Core rod with air core - Google Patents
Core rod with air core Download PDFInfo
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- CN212928916U CN212928916U CN202021870940.3U CN202021870940U CN212928916U CN 212928916 U CN212928916 U CN 212928916U CN 202021870940 U CN202021870940 U CN 202021870940U CN 212928916 U CN212928916 U CN 212928916U
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Abstract
The utility model relates to an air core bar, which is used for being arranged in an air core sleeve in a penetrating way and forming an air valve air core by matching with air core accessories, the air valve air core is used for being arranged in an air passage of an air valve rod, the air core bar comprises a core bar body and an air ring, the core bar body comprises an air tight section arranged in the air core sleeve in a penetrating way and an extension section extending to the bottom end of the air valve rod, the extension section is provided with an extension part and a non-return convex part which are sequentially connected from top to bottom, the outer diameter of the non-return convex part is larger than the outer diameter of the extension part, and a small gap is formed between the non-return convex part and the inner wall surface of the ventilation channel of the air tap valve rod, and the airtight ring is sleeved on the airtight section of the core rod body, the air core rod of the utility model can mainly utilize the non-return convex part positioned at the bottom end of the ventilation channel to prevent the reinforcing agent from flowing back, and the ventilation channel can be dredged, and the air input of the air tap valve rod can be effectively prevented from being influenced by the reinforcing agent.
Description
Technical Field
The present invention relates to a gas core rod, and more particularly to a gas core rod for controlling air intake by inserting into a gas core sleeve and matching with a gas core fitting.
Background
In order to avoid the problem of air leakage caused by damage of a tire during running, some consumers firstly inject reinforcing agents such as explosion-proof liquid, puncture-proof liquid or tire repair liquid into the tire, and the reinforcing agents completely cover the tire surface to achieve the reinforcing effect of the tire; when the tire is punctured by a foreign object, the reinforcing agent may penetrate into the broken portion of the tire and slow down the deflation of the tire.
As shown in fig. 14, the air valve stem generally disposed on the wheel frame 70 of the tire mainly includes a stem 80 and an airtight body 81 covering the bottom end of the stem 80, a ventilation channel 82 passing through the stem 80 and the airtight body 81 is formed inside the air valve stem, the air valve stem is disposed on the top end of the stem 80, a user can connect an external inflation device to the air valve stem to input air into the tire through the air core assembly 90 for inflation, and after inflation is completed, the user can use the air core assembly 90 to close the ventilation channel 82 to achieve an airtight effect.
However, if the user fills the tire with the reinforcing agent in advance, the reinforcing agent filled in the tire easily flows into the vent passage 82 of the valve stem, and the amount of air taken by the valve stem during inflation is affected, and even the reinforcing agent remains too much to block the vent passage 82, which causes a problem of difficulty in air intake during inflation.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the flow of the reinforcing agent into the vent passage of the valve stem of the air faucet causes problems that affect the amount of air intake and even clogging.
The technical solution of the utility model is that: the utility model provides an air core bar, it is for wearing to establish in an air core sleeve and match an air core accessory and constitute an air cock air core, air cock air core is for installing in a ventilation channel of an air cock valve rod, the air core bar contains:
a stem body including an airtight section and an extension section, the airtight section extending into the air core sleeve, the airtight section radially protruding to form a limit portion and a butt portion, the extension section extending to the bottom end of the air nozzle valve stem, the extension section having an extension portion and a non-return protrusion, the extension portion being disposed below the airtight section, the non-return protrusion being connected to the bottom end of the extension portion and located at the bottom end of the air vent channel of the air nozzle valve stem, the non-return protrusion having an outer diameter larger than the outer diameter of the extension portion and approaching to the inner diameter of the bottom end of the air vent channel, and a small gap being formed between the non-return protrusion and the inner wall surface of the air vent channel of the air nozzle valve stem; and
and the airtight ring is sleeved on the airtight section of the core rod body and is positioned between the limiting part and the abutting part, and the abutting part can compress the airtight ring to hermetically seal the air core sleeve.
Optionally, the airtight section and the extension section of the core rod body are integrally formed members as described above.
Optionally, in the above air core rod, a combination portion is formed at the bottom end of the air-tight section of the core rod body, and a matching portion is formed at the top end of the extension section, and the matching portion of the extension section is assembled at the combination portion.
Optionally, as for the gas core rod described above, the combination portion and the matching portion are respectively formed with corresponding threads and screw holes, and the combination portion and the matching portion are arranged in a threaded manner.
Optionally, the matching portion is formed with a matching hole, and the combining portion extends into the matching hole of the matching portion in a tight fit manner.
Optionally, as for the gas core rod, the matching portion is formed with a screw hole, and the combining portion extends into the screw hole of the matching portion in a tight fit manner.
Optionally, as for the gas core rod described above, the combination portion is formed with a thread, and the fitting portion is formed with a fitting hole, and the combination portion extends into the fitting hole of the fitting portion with tight fit.
Optionally, the air core rod is as described above, and the air-tight section is formed with an orientation part above the positioning convex part.
The utility model discloses the air core bar can cooperate the air core sleeve pipe of different forms to constitute the air cock air core of different national specifications to can be used for installing in the air cock valve rod of different specification and dimension, wherein, the utility model has the advantages that:
1. prevent reinforcing agents such as explosion-proof liquid, puncture-proof liquid or tire repair liquid from overflowing into the ventilation channel in a reverse flow manner: because the utility model discloses a when the gas core pole passes through the setting of gas core sleeve pipe in the air cock valve rod, the extension section of gas core pole extends to the bottom of this air cock valve rod, it is the passageway bottom of ventilating that is located this air cock valve rod to end contrary the convex part, and ends contrary the convex part outer footpath and approach in the internal diameter of passageway bottom department of ventilating, so when having the injection strengthening agent in the child, end contrary convex part can obstruct the strengthening agent in the passageway of ventilating to the air cock valve rod against the current.
2. The ventilation channel of the air tap valve rod can be dredged: as mentioned above, the extension section of the air core rod extends to the bottom end of the air faucet valve rod, and the non-return convex part is located at the bottom end of the ventilation channel of the air faucet valve rod, so that when the reinforcing agent is left at the bottom end of the ventilation channel of the air faucet valve rod, a user can push the air core rod to push the non-return convex part out of the ventilation channel, thereby pushing out the reinforcing agent left at the bottom end of the ventilation channel, and further achieving the effect of dredging the ventilation channel to avoid the problem of blockage of the ventilation channel.
Drawings
Fig. 1 is a schematic perspective view of a gas core rod according to a first preferred embodiment of the present invention.
Fig. 2 is a schematic perspective exploded view of a second preferred embodiment of the gas core rod of the present invention.
Fig. 3 is a schematic cross-sectional view of an extended section of the gas core rod of the present invention having a mating hole.
Fig. 4 is the schematic sectional view of the gas core sleeve and the gas core fitting of the gas core rod matching French specification of the present invention installed on the first air faucet valve rod.
Fig. 5 is a schematic sectional view of the air core sleeve and the air core fitting of the air core rod matching French specification of the present invention installed on the second type of air nozzle valve rod.
Figure 6 is the section schematic diagram of the gas core sleeve and the gas core accessory of the gas core rod matching French specification of the utility model installed on the third type air cock valve rod.
Figure 7 is the cross-sectional schematic view of the gas core sleeve and gas core accessory of the gas core rod matching french specification of the present invention installed at the fourth air faucet valve rod.
Fig. 8 is a schematic sectional view of the gas core rod of the present invention cooperating with the gas core sleeve and the gas core fitting of the french specification and installed on the fifth type of air faucet valve rod.
Fig. 9 is a schematic view of the gas core rod of the present invention cooperating with the gas core sleeve and the gas core fitting of American standard.
Fig. 10 is a schematic cross-sectional view of the gas core rod of the present invention, which is installed on the sixth type of air faucet valve rod in cooperation with the gas core sleeve and the gas core fitting of American standard.
Fig. 11 is a schematic sectional view of the air core rod of the present invention matching with the air core sleeve and the air core fitting of American standard and installed on the seventh air faucet valve rod.
Fig. 12 is a schematic view (one) of the usage status of the gas core rod of the present invention.
Fig. 13 is a schematic view (ii) illustrating the usage status of the gas core rod of the present invention.
Fig. 14 is a schematic view showing a state of use of a conventional gas core rod.
Detailed Description
The following description of the preferred embodiments of the present invention will be made in conjunction with the drawings and the accompanying drawings to further illustrate the technical means adopted to achieve the objects of the present invention.
Referring to fig. 1 to 11, several preferred embodiments of the air core rod of the present invention are shown, which are configured to penetrate through an air core sleeve 30a,30b and cooperate with an air core fitting 31 to form an air nozzle air core, the air nozzle air core is configured to be installed in an air passage 41 a-41 g of an air nozzle valve stem 40 a-40 g, and the air core rod comprises a rod body 10 and an airtight ring 20.
As shown in fig. 1 to 11, the core rod body 10 includes an airtight section 11 and an extension section 12, the airtight section 11 extends into the air core sleeves 30a,30b, the air-tight section 11 is formed with a position-limiting portion 111 and an abutting portion 112 by radial protrusion, the extending section 12 extends to the bottom end of the valve stem 40 a-40 g, the extension section 12 has an extension portion 121 and a non-return protrusion 122, the extension portion 121 is disposed below the airtight section 11, the non-return protrusion 122 is connected to the bottom end of the extension 121 and is located at the bottom end of the air vent channel 41 a-41 g of the air tap valve stem 40 a-40 g, the outer diameter of the non-return protrusion 122 is larger than the outer diameter of the extension 121 and approaches the inner diameter of the bottom end of the air-vent channel 41 a-41 g, and a gap 13 is formed between the non-return protrusion 122 and the inner wall surface of the air vent passages 41a to 41g of the air tap valve stems 40a to 40 g.
As shown in fig. 1, the airtight section 11 and the extension section 12 of the core rod body 10 can be integrally formed members; or, as shown in fig. 2, a combining portion 113 is formed at the bottom end of the airtight section 11 of the core rod body 10, and a matching portion 123 is formed at the top end of the extension section 12, and the matching portion 123 of the extension section 12 and the combining portion 113 can be mutually combined.
Wherein, the combination portion 113 of the airtight section 11 and the matching portion 123 of the extension section 12 can be assembled in various ways, as shown in fig. 2, in the preferred embodiment of the gas core rod of the present invention, the combination portion 113 and the matching portion 123 can be formed with corresponding threads and screw holes, respectively, and the combination portion 113 and the matching portion 123 are screwed with each other; or, as shown in fig. 3, the matching portion 123 is formed with a matching hole, and the combining portion 113 extends into the matching hole of the matching portion 123 with tight fit; or, the matching part 123 is formed with a screw hole, and the combining part 113 tightly fits into the screw hole of the matching part 123; or, the combination portion 113 is formed with a thread, and the matching portion 123 is formed with a matching hole, and the combination portion 113 tightly fits into the matching hole of the matching portion 123, wherein a reserved hole portion with a larger inner diameter is formed inside the screw hole or the matching hole, so that the difficulty in setting the combination portion 113 can be effectively reduced, the matching tightness between the matching hole and the combination portion 113 can be effectively increased, and in addition, the screw hole or the matching hole can also be a straight hole or a reserved hole with a smaller inner diameter is formed inside the screw hole or the matching hole.
In addition, in the preferred embodiment of the gas core rod of the present invention, the outer diameter of the non-return protrusion 122 is close to the inner diameter of the bottom end of the ventilation channels 41a to 41g, and in addition, a positioning portion 114 can be further formed on the airtight section 11 above the positioning protrusion.
As shown in fig. 1 to 4, the airtight ring 20 is sleeved on the airtight section 11 of the core rod body 10 and located between the limiting portion 111 and the abutting portion 112, and the abutting portion 112 can compress the airtight ring 20 to hermetically seal the air core sleeves 30a and 30 b.
The utility model discloses the air core pole can cooperate the air core sleeve pipe 30a of different forms, 30b and the air core accessory 31 constitutes the air cock air core of different national specifications, wherein, the orientation portion 114 of airtight section 11 can cooperate the inner structure of air core sleeve pipe 30a,30b reaches directional effect, just air core accessory 31 can control the air core pole carries out axial removal, and then control whether air core sleeve pipe 30a,30b seals.
Following with the utility model discloses the air core of air core sleeve pipe 30a and the air core accessory 31 constitution french formula of air core bar cooperation french specification is for example, as shown in fig. 4 to 8, the air core bar also can pass through air core sleeve pipe 30a sets up the air cock valve rod 40a ~ 40e at multiple different dimensions, just the air core bar can be according to the air cock valve rod 40a ~ 40e that cooperates the different and adopt corresponding size of dimension specification.
As shown in fig. 9 to 11, taking the air core rod of the present invention, which is matched with the air core sleeve 30b with the american specification and the air core fitting (not shown) disposed inside the air core sleeve 30b to form an american air nozzle air core as an example, as shown in fig. 10 and 11, the air core rod can be disposed on the air nozzle valve rods 40f to 40g with various different dimensions through the air core sleeve 30b, and the air core rod can adopt corresponding dimensions according to the different dimensions of the matched air nozzle valve rods 40f to 40 g.
As shown in fig. 12, for example, the air core stem of the present invention is matched with the air core sleeve 30a and the air core fitting 31 of french specification and installed on the first air nozzle stem 40a, the air nozzle stem 40a can be installed on the wheel frame 50 of the tire, and the air nozzle air core formed by the air core stem and the air core sleeve 30a controls the air to enter and exit the tire, when the air nozzle air core is in a closed state, the air core fitting 31 can control the air core stem to move upward relative to the air core sleeve 30a, so that the abutting portion 112 and the bottom edge of the air core sleeve 30a compress the airtight ring 20, and the airtight ring 20 hermetically seals the air core sleeve 30a, at this time, the non-return protrusion 122 is located at the bottom end of the ventilation channel 41a of the air nozzle stem 40a, and forms a small gap 13 with the inner side surface of the ventilation channel 41a, therefore, when the reinforcing agent is injected into the tire, the ventilation channel 41a is in a sealed state due to the sealing of the air nozzle core, so that the reinforcing agent is not easy to enter the ventilation channel 41a from the tiny gap 13, and the non-return protrusion 122 can prevent the reinforcing agent from flowing back into the ventilation channel 41a of the air nozzle valve stem 40 a.
As shown in fig. 13, when the user needs to inflate, the user can operate the air core fitting 31 to move the air core rod axially downward, at this time, the airtight ring 20 will be separated from the bottom edge of the air core sleeve 30, so that the air core sleeve 30a is communicated with the air vent channel 41a, and the non-return protrusion 122 will protrude out of the bottom end of the air nozzle valve rod 40a, so that the air vent channel 41a can be communicated with the external environment through the air nozzle air core, thereby increasing the size of the pore between the extension 12 and the inner wall surface of the air vent channel 41a, enabling the user to inflate the tire without affecting the amount of air intake, and further, the user can push the non-return protrusion 122 out of the air vent channel 41a by pushing the air core rod, thereby pushing out the reinforcing agent remaining at the bottom end of the air vent channel 41a, and further achieving the effect of dredging the air vent channel 41a, to avoid the problem of blockage of the vent passage 41 a.
To sum up, the utility model discloses gas core pole mainly can utilize to be located the contrary convex part 122 of ending of the passageway 41a ~ 41g bottom department of ventilating of air cock valve rod 40a ~ 40g prevents that the reinforcer from flowing against the counter current to can remain the reinforcer of passageway 41a ~ 41g bottom department of ventilating releases in order to reach the effect of mediation passageway 41a ~ 41g of ventilating, can effectively avoid the air input of air cock valve rod 40a ~ 40g to receive the reinforcer influence.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person can make modifications or changes equivalent to the equivalent embodiment without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.
Claims (8)
1. An air core bar is used for being arranged in an air core sleeve in a penetrating mode and matching with an air core accessory to form an air nozzle air core, the air nozzle air core is used for being installed in a ventilation channel of an air nozzle valve rod, and the air core bar is characterized by comprising:
a stem body including an airtight section and an extension section, the airtight section extending into the air core sleeve, the airtight section radially protruding to form a limit portion and a butt portion, the extension section extending to the bottom end of the air nozzle valve stem, the extension section having an extension portion and a non-return protrusion, the extension portion being disposed below the airtight section, the non-return protrusion being connected to the bottom end of the extension portion and located at the bottom end of the air vent channel of the air nozzle valve stem, the non-return protrusion having an outer diameter larger than that of the extension portion, and a gap being formed between the non-return protrusion and the inner wall surface of the air vent channel of the air nozzle valve stem; and
and the airtight ring is sleeved on the airtight section of the core rod body and is positioned between the limiting part and the abutting part, and the abutting part can compress the airtight ring to hermetically seal the air core sleeve.
2. The gas core pin of claim 1, wherein the gas-tight section and the extension section of the pin body are integrally formed components.
3. The gas core rod of claim 1, wherein the gas-tight section of the rod body has a combination portion formed at a bottom end thereof, and the extension section has a mating portion formed at a top end thereof, the mating portion of the extension section being capable of being assembled with the combination portion.
4. The gas core rod according to claim 3, wherein the combination part and the matching part are respectively formed with corresponding threads and screw holes, and the combination part and the matching part are mutually screwed.
5. The gas core pin according to claim 3, wherein the fitting portion is formed with a fitting hole, and the combining portion is inserted into the fitting hole of the fitting portion with tight fit.
6. The gas core rod according to claim 3, wherein the fitting portion is formed with a screw hole, and the combining portion is inserted into the screw hole of the fitting portion with tight fit.
7. The gas core pin according to claim 3, wherein the combination portion is formed with a thread and the mating portion is formed with a mating hole, the combination portion extending into the mating hole of the mating portion with a tight fit.
8. The gas core pin according to any one of claims 1 to 7, wherein the gas-tight section is formed with an orientation portion above the positioning protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021870940.3U CN212928916U (en) | 2020-09-01 | 2020-09-01 | Core rod with air core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021870940.3U CN212928916U (en) | 2020-09-01 | 2020-09-01 | Core rod with air core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212928916U true CN212928916U (en) | 2021-04-09 |
Family
ID=75302122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021870940.3U Active CN212928916U (en) | 2020-09-01 | 2020-09-01 | Core rod with air core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212928916U (en) |
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2020
- 2020-09-01 CN CN202021870940.3U patent/CN212928916U/en active Active
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