Novel integrated inner tube air nozzle

Abstract

The utility model relates to the technical field of inner tire air nozzles, in particular to a novel integrated inner tire air nozzle which comprises a first channel arranged in an air nozzle rod, the upper end and the lower end of the first channel are communicated with the outside, and the lower end of the first channel is connected with an inner tire; the valve core is arranged in the first channel in an up-down sliding mode and composed of a blocking part and an extending part, and the diameter of the extending part is smaller than that of the blocking part. The second channel is arranged in the first channel and is coaxial with the first channel, the upper end and the lower end of the second channel are communicated with the first channel, the diameter of the second channel is smaller than that of the first channel, the diameter of the valve core blocking part is matched with that of the second channel, and when the valve core blocking part is separated from the second channel, gas enters the inner tube from the first channel and the second channel. And when the valve core blocking part is in the second channel, gas is blocked from entering and exiting from the second channel. The sealing structure has the advantages of enhancing the sealing performance and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of inner tube air nozzles, in particular to a novel integrated inner tube air nozzle. Background Art

[0002] The inner tube air nozzle is an important component for connecting the inner tube and the inflation device and maintaining the air pressure of the inner tube. However, the valve core structure of the existing air nozzle is relatively simple and has poor sealing performance. The most commonly used is the Schrader air nozzle. The spring-type valve core of the Schrader air nozzle will experience spring fatigue as the use time increases, resulting in poor sealing. Utility Model Content

[0003] In view of this, the utility model provides a novel integrated inner tube air nozzle, aiming to solve the technical problem of poor sealing of the air nozzle in the prior art.

[0004] To achieve the above purpose, the utility model is implemented by the following technical solutions: a novel integrated inner tube air nozzle, an air nozzle rod, a first channel is arranged inside, the upper and lower ends of the first channel are connected to the outside, and the lower end of the first channel is connected to the inner tube;

[0005] A valve core is slidably disposed in the first channel, the valve core comprising a blocking portion and an extending portion, and a diameter of the extending portion is smaller than a diameter of the blocking portion;

[0006] The second channel is arranged in the first channel and is coaxial therewith. The upper and lower ends of the second channel are connected to the first channel. The diameter of the second channel is smaller than the diameter of the first channel. The diameter of the valve core blocking portion is matched with the diameter of the second channel. When the valve core blocking portion is separated from the second channel, the gas enters the inner tube from the first channel and the second channel. When the valve core blocking portion is in the second channel, the gas is blocked from entering and exiting the second channel.

[0007] A further improvement of the utility model is that the upper end of the extension portion extends out of the upper end of the first channel, and a locking piece is provided on the extension portion outside the upper end of the first channel.

[0008] A further improvement of the utility model is that a first threaded section is provided on the outer wall of the extension portion outside the upper end of the first channel, the locking piece is sleeved on the extension portion, and the interior of the locking piece is threadedly connected to the first threaded section, and a plurality of through grooves are provided in the circumferential direction of the lower end of the locking piece.

[0009] A further improvement of the utility model is that a boss is arranged at the upper end of the second channel.

[0010] A further improvement of the present invention is that the bottom of the second channel is a first cone.

[0011] A further improvement of the present utility model lies in that a second threaded section is provided on the outer part of the upper end of the air nozzle rod, and the inside of the dust cap is threadedly connected to the second threaded section.

[0012] A further improvement of the present utility model lies in that a fastening ring is provided on the outer wall of the air nozzle rod opposite to the second channel.

[0013] A further improvement of the present utility model lies in that the blocking part is made of rubber material.

[0014] A further improvement of the present utility model lies in that a plurality of tabs are provided on the extending part between the blocking part and the upper end of the first channel along its circumferential direction, and a plurality of blocking pieces are provided on the inner wall of the first channel between the blocking part and the upper end of the first channel along its circumferential direction, and one tab is provided between every two adjacent blocking pieces.

[0015] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model is:

[0016] The present utility model provides a novel integrated inner tube air nozzle. When using the inner tube air nozzle to inflate, rotate the locking member to make the extending part move downward. The extending part drives the blocking part to move downward until the blocking part disengages from the second channel. Subsequently, the gas enters the first channel through the through groove on the locking member, and then passes through the second channel and the first channel below the second channel, and then the gas enters the inner tube. After inflation, rotate the locking member in the reverse direction to make the extending part move upward. The extending part drives the blocking part to move upward into the second channel, blocking the connection between the upper and lower sections of the first channel of the second channel, so that the outside gas cannot enter the inner tube, and the gas in the inner tube cannot come out either. Compared with the prior art, the sealing performance of the air nozzle can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the overall structure of the inner tube air nozzle described in the present utility model;

[0019] Figure 2 It is a sectional view of the overall inner tube air nozzle described in the present utility model;

[0020] Figure 3 It is a schematic diagram of the valve core structure of the inner tube air nozzle described in the present utility model;

[0021] Figure 4Schematic structural diagram of a locking member without a taper for the inner tube valve of the present utility model;

[0022] Figure 5 Schematic structural diagram of a locking member with a taper for the inner tube valve of the present utility model;

[0023] Figure 6 Cross-sectional view of the valve rod of the inner tube valve of the present utility model.

[0024] Description of reference numerals:

[0025] 10 - Valve rod, 101 - First channel, 102 - Second channel, 11 - Valve core, 111 - Blocking portion, 112 - Extension portion, 113 - First threaded section, 12 - Locking member, 121 - Through groove, 13 - Boss, 14 - First taper, 15 - Second threaded section, 16 - Fastening ring, 17 - Flap, 18 - Tab. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, in the following descriptions, specific details such as specific system structures and technologies are proposed for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present utility model. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present utility model.

[0027] A new type of integrated inner tube valve provided by the present utility model, in combination with the attached drawings of the specification Figure 1 to Figure 6 As can be seen, a new type of integrated inner tube valve mainly includes the following parts or components: valve rod 10, valve core 11, and second channel 102.

[0028] In the present utility model, as Figure 2As shown in the figure, a first channel 101 is provided inside the air nozzle rod 10. Both the upper and lower ends of the first channel 101 are connected to the outside. The lower end of the first channel 101 is connected to the inner tube. The valve core 11 is slidably arranged inside the first channel 101. The valve core 11 is composed of a blocking portion 111 and an extending portion 112. The diameter of the extending portion 112 is smaller than that of the blocking portion 111. A second channel 102 is provided inside the first channel 101 and is coaxial with it. Both the upper and lower ends of the second channel 102 are connected to the first channel 101. The diameter of the second channel 102 is smaller than that of the first channel 101. The diameter of the blocking portion 111 of the valve core 11 is adapted to the diameter of the second channel 102. When the blocking portion 111 of the valve core 11 disengages from the second channel 102, gas enters the inner tube from the first channel 101 and the second channel 102. When the blocking portion 111 of the valve core 11 is inside the second channel 102, the entry and exit of gas from the second channel 102 are blocked.

[0029] The upper end of the extending portion 112 extends out of the upper end of the first channel 101. A locking member 12 is provided at the upper end of the first channel 101. The locking member 12 is coaxial with the extending portion 112. A first threaded section 113 is provided on the outer wall of the extending portion 112 outside the upper end of the first channel 101. The locking member 12 is sleeved on the extending portion 112, and the inside of the locking member 12 is threadedly connected to the first threaded section 113. A plurality of through slots 121 are provided in the circumferential direction at the lower end of the locking member 12.

[0030] When inflating the inner tube air nozzle, rotate the locking member 12 to move the extending portion 112 downward. The extending portion 112 drives the blocking portion 111 to move downward until the blocking portion 111 disengages from the second channel 102. Subsequently, connect the end of the air outlet pipe of the air pump to the upper end of the air nozzle rod 10. The locking member 12 and the valve core 11 are both inside the end of the air outlet pipe. The gas in the air outlet pipe enters the first channel 101 through the through slots 121 on the locking member 12, and then enters the inner tube through the second channel 102 and the first channel 101 below the second channel 102. After inflation, disconnect the end of the air outlet pipe of the air pump from the upper end of the air nozzle rod 10, so that the end of the air outlet pipe of the air pump disengages from the upper end of the air nozzle rod 10. Then rotate the locking member 12 in the reverse direction to move the extending portion 112 upward. The extending portion 112 drives the blocking portion 111 to move upward into the second channel 102, blocking the communication between the upper and lower sections of the first channel 101 of the second channel 102, preventing external gas from entering the inner tube and the gas in the inner tube from escaping, which can effectively improve the sealing performance of the air nozzle.

[0031] Specifically, the lower end of the locking member 12 can be rotationally connected to the upper end of the first channel 101 by a rotating shaft. Just rotating the locking member 12 can make the extending portion 112 slide up and down.

[0032] Specifically, the locking member 12 can also be directly sleeved on the extension portion 112. When it is necessary to move the blocking portion 111 downward, hold the extension portion 112, rotate the locking member 12, and after the locking member 12 moves upward by a certain position, release the extension portion 112 to allow the extension portion 112 to move downward naturally until the lower end of the locking member 12 contacts the upper end of the first channel 101. When it is necessary to move the blocking portion 111 upward, directly pull and move the extension portion 112, so that the locking member 12 leaves the upper end of the first channel 101. Then, drive the blocking portion 111 into the second channel 102 with the extension portion 112, and rotate the locking member 12 in the reverse direction until the lower end of the locking member 12 contacts the upper end of the first channel 101 again. Among them, the lower end of the locking member 12 can be a second cone, and the smaller end of the second cone faces the first channel 101. There can be a gap between the extension portion 112 and the inner wall of the first channel 101. When the locking member 12 contacts the first channel 101, that is, when the outer wall of the second cone contacts the inner wall of the first channel 101, the second cone is stuck between the extension portion 112 and the inner wall of the first channel 101, which can effectively enhance the locking effect.

[0033] Specifically, the material used for the air nozzle rod 10 is a modified high-temperature resistant plastic, such as polyphenylene sulfide (PPS), polyimide (PI), etc., which can maintain a good shape at high temperatures and improve airtightness.

[0034] Specifically, the blocking portion 111 is made of rubber.

[0035] Among them, a plurality of tabs 18 are fixedly arranged along the circumferential direction on the extension portion 112 between the blocking portion 111 and the upper end of the first channel 101. A plurality of stop pieces 17 are fixedly arranged along the circumferential direction on the inner wall of the first channel 101 between the blocking portion 111 and the upper end of the first channel 101. One tab 18 is arranged between every two adjacent stop pieces 17, which can effectively prevent the extension portion 112 from rotating when the locking member 12 is rotated.

[0036] As an embodiment, in combination with the attached drawings of the specification Figure 2 and the attached Figure 6 it can be seen that a boss 13 is fixedly arranged at the upper end of the second channel 102. When moving the blocking portion 111 upward, after the blocking portion 111 completely enters the second channel 102, the boss 13 will stop the upward movement of the blocking portion 111, thereby preventing the second channel 102 from being missed due to excessive rotation of the locking member 12.

[0037] As an embodiment, in combination with the attached drawings of the specification Figure 2 and the attached Figure 6 it can be seen that the bottom of the second channel 102 is a first cone 14. The first cone 14 is successively a larger end and a smaller end from bottom to top, which can facilitate the entry of the blocking portion 111 into the second channel 102 from bottom to top.

[0038] As an embodiment, in combination with the attached drawings of the specificationFigure 2 , attached Figure 6 As can be seen, a second threaded section 15 is provided on the outer part of the upper end of the air nozzle rod 10, and the inside of the dust cap is threadedly connected to the second threaded section 15. The combination of screwing the second threaded section 15 and the dust cap has a simple structure and can effectively prevent dust and other impurities from entering the air nozzle rod 10. Since the dust cap is relatively common in the art, it is not shown in the figure.

[0039] As an embodiment, in combination with the attached drawings of the specification Figure 2 As can be seen, a fastening ring 16 is provided on the outer wall of the air nozzle rod 10 opposite to the second channel 102. The fastening ring 16 surrounds the outer wall of the air nozzle rod 10, making the second channel 102 fit more closely with the blocking portion 111 and further enhancing the sealing performance.

[0040] Specifically, a welding piece is installed at the bottom of the air nozzle rod 10, and there is also a through hole on the welding piece that communicates with the first channel 101. An annular protrusion is fixedly installed on the outer circumferential surface of the lower end of the air nozzle rod 10, and there is a matching annular groove on the welding piece. The annular protrusion and the annular groove are fixed together, enabling them to be firmly combined and enhancing the sealing performance. The welding piece is welded to the inner tube.

[0041] It should be noted that in this patent application, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A new type of integrated inner tube valve, characterized in that, Including: An air nozzle rod, which is provided with a first channel inside. Both the upper and lower ends of the first channel are connected to the outside, and the lower end of the first channel is connected to the inner tube. A valve core, which is slidably arranged in the first channel. The valve core is composed of a blocking part and an extending part, and the diameter of the extending part is smaller than that of the blocking part. A second channel, which is arranged in the first channel and is coaxial with it. Both the upper and lower ends of the second channel are connected to the first channel. The diameter of the second channel is smaller than that of the first channel, and the diameter of the blocking part of the valve core is adapted to the diameter of the second channel. When the blocking part of the valve core disengages from the second channel, gas enters the inner tube from the first channel and the second channel. When the blocking part of the valve core is in the second channel, the entry and exit of gas from the second channel are blocked.

2. A novel integrated inner tube air nozzle according to claim 1, wherein The upper end of the extending part extends out of the upper end of the first channel, and a locking member is arranged at the upper end of the first channel, and the locking member is coaxial with the extending part.

3. A novel integrated inner tube air nozzle according to claim 2, wherein A first threaded section is arranged on the outer wall of the extending part outside the upper end of the first channel. The locking member is sleeved on the extending part, and the inside of the locking member is threadedly connected to the first threaded section. A plurality of through slots are arranged in the circumferential direction at the lower end of the locking member.

4. A novel integrated inner tube air nozzle according to claim 1, wherein A boss is arranged at the upper end of the second channel.

5. A novel integrated inner tube air nozzle according to claim 1, wherein The bottom of the second channel is a first cone.

6. A novel integrated inner tube air nozzle according to claim 1, wherein A second threaded section is arranged on the outer part of the upper end of the air nozzle rod, and the inside of the dust cap is threadedly connected to the second threaded section.

7. A novel integrated inner tube air nozzle according to claim 1, wherein A fastening ring is arranged on the outer wall of the air nozzle rod opposite to the second channel.

8. A novel integrated inner tube air nozzle according to claim 1, wherein The blocking part is made of rubber material.

9. A novel integrated inner tube air nozzle according to any one of claims 1-8, wherein A plurality of tabs are arranged on the extending part between the blocking part and the upper end of the first channel along its circumferential direction, and a plurality of blocking pieces are arranged on the inner wall of the first channel between the blocking part and the upper end of the first channel along its circumferential direction. One tab is arranged between every two adjacent blocking pieces.

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