Inflating valve structure with high sealing performance

Abstract

The high-sealing-performance inflating valve structure comprises a pipe body, fixing protruding rings are coaxially and evenly arranged on the outer surface of the pipe body, the pipe body is sleeved with a first sealing ring and a second sealing ring, the diameter of the first sealing ring and the diameter of the second sealing ring are the same as the diameter of a connecting hole of a hub, and the first sealing ring and the second sealing ring are used for being arranged in the connecting hole in a penetrating mode. First grooves are formed in the first sealing ring corresponding to the fixed convex rings, the number of the first grooves is half of the number of the fixed convex rings, second grooves are formed in the second sealing ring corresponding to the fixed convex rings, the number of the second grooves is half of the number of the fixed convex rings, and the first sealing ring and the second sealing ring are oppositely arranged. Sealing is achieved in the mode that the first sealing ring and the second sealing ring are clamped into the connecting holes of the hub, the first sealing ring and the second sealing ring are fixed to the pipe body through clamping of the first groove and the second groove and the fixing protruding ring on the pipe body, the installation steps are simple, and meanwhile higher sealing performance is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of valve stems, in particular to a valve stem structure with high sealing performance. BACKGROUND

[0002] As a kind of independent valve body device, the valve stem plays a crucial role in the field of tires. Its core function is to allow gas to flow smoothly into the space of the tubeless tire or inner tube when opened, complete the inflation operation, and then automatically close and tightly seal to preserve the gas and generate air pressure in the tire, effectively preventing gas from escaping from the tire or inner tube. Except for solid tires, almost all tires or inner tubes that need to be inflated must rely on valve stems to achieve the inflation process.

[0003] A sealing ring is usually provided on the pipe body of the valve stem, which is usually a single annular structure. The sealing ring is in contact with the surface of the hub to achieve sealing between the pipe body and the connecting hole of the hub. However, the contact surface of the single annular sealing ring and the hub is only the single side surface of the annular ring, and the pipe body and the hub are easy to loosen, which affects the sealing performance. Therefore, it is an urgent problem for those skilled in the art to design a valve stem structure with better sealing performance. CONTENT OF THE INVENTION

[0004] The application provides a valve stem structure with high sealing performance.

[0005] The valve stem structure with high sealing performance provided by the application adopts the following technical scheme:

[0006] The valve stem structure with high sealing performance comprises a pipe body, the outer surface of the pipe body is uniformly provided with a fixed protruding ring coaxially, a first sealing ring and a second sealing ring are provided on the pipe body, the diameters of the first sealing ring and the second sealing ring are the same as the diameter of the connecting hole of the hub, and the first sealing ring and the second sealing ring are arranged in the connecting hole, a first groove is formed in the first sealing ring corresponding to the fixed protruding ring, the number of the first grooves is half of the number of the fixed protruding rings, a second groove is formed in the second sealing ring corresponding to the fixed protruding ring, the number of the second grooves is half of the number of the fixed protruding rings, the first sealing ring and the second sealing ring are arranged oppositely, and the first sealing ring and the second sealing ring are fixed on the pipe body by being embedded in the first grooves and the second grooves through the fixed protruding rings.

[0007] Preferably, the first sealing ring comprises a first fixed ring body and a first penetrating ring body, the diameter of the first fixed ring body is larger than that of the first penetrating ring body, the diameter of the first penetrating ring body matches that of the connecting hole of the hub, and the first groove is located in the first penetrating ring body; the second sealing ring comprises a second fixed ring body and a second penetrating ring body, the diameter of the second fixed ring body is larger than that of the second penetrating ring body, the diameter of the second penetrating ring body matches that of the connecting hole of the hub, and the second penetrating ring body is provided with a second groove corresponding to the fixed convex ring, and the second groove is located in the second penetrating ring body; the first penetrating ring body and the second penetrating ring body are used for penetrating in the connecting hole, and an end surface of the first penetrating ring body away from the first fixed ring body abuts against an end surface of the second penetrating ring body away from the second fixed ring body.

[0008] Preferably, an installation convex ring is arranged on the end surface of the first penetrating ring body away from the first fixed ring body, an installation groove is arranged on the end surface of the second penetrating ring body away from the second fixed ring body, and the installation convex ring is embedded in the installation groove.

[0009] Preferably, one side of the pipe body is formed with a first external thread, a valve cap is threadedly connected on the first external thread, a first compensation assembly is sleeved between the valve cap and the first sealing ring; the other side of the pipe body is formed with a second external thread, an installation sleeve is threadedly connected on the second external thread, and a second compensation assembly is sleeved between the installation sleeve and the second sealing ring.

[0010] Preferably, the first compensation assembly comprises a first connecting sleeve, a first spring and a first jacking sleeve, the first jacking sleeve is connected on the first fixed ring body, the first spring is sleeved on the outer periphery of the pipe body, the first connecting sleeve is elastically connected on the first spring and is fixed on the valve cap through a bolt; one end of the first jacking sleeve away from the first spring is provided with a first positioning column, and the first fixed ring body is formed with a first positioning hole corresponding to the first positioning column at one end thereof away from the first penetrating ring body, and the first positioning column is penetrated in the first positioning hole.

[0011] Preferably, the second compensation assembly comprises a second connecting sleeve, a second spring and a second jacking sleeve, the second jacking sleeve is connected on the second fixed ring body, the second spring is sleeved on the outer periphery of the pipe body, the second connecting sleeve is elastically connected on the second spring and is fixed on the installation sleeve through a bolt; two ends of the second jacking sleeve away from the second spring are provided with a second positioning column, and the second fixed ring body is formed with a second positioning hole corresponding to the second positioning column at two ends thereof away from the second penetrating ring body, and the second positioning column is penetrated in the second positioning hole.

[0012] In summary, the present application includes at least one of the following beneficial technical effects:

[0013] 1. The present application realizes sealing by clamping the connecting hole of the hub with the first and second sealing rings, and fixes the first and second sealing rings on the pipe body by clamping the fixed protruding ring on the pipe body with the first and second grooves, so that the installation steps are simple and the sealing performance is better.

[0014] 2. The connection structure between the first and second penetrating ring bodies is further reinforced by the embedded structure of the mounting protruding ring and the mounting groove.

[0015] 3. The stability of the connection structure between the first and second sealing rings and the pipe body is further reinforced by the first and second compensation assemblies. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the preferred embodiment of the present application.

[0017] Figure 2 is Figure 1 a sectional view along A-A.

[0018] Figure 3 is Figure 2 an enlarged view of part A.

[0019] Figure 4 is Figure 2 an enlarged view of part B.

[0020] Figure 5 is a schematic diagram of the structure of the pipe body in the preferred embodiment of the present application.

[0021] BRIEF DESCRIPTION OF DRAWINGS 1. pipe body; 11. fixed protruding ring; 12. first external thread; 13. second external thread; 2. first sealing ring; 21. first groove; 22. first fixed ring body; 221. first positioning hole; 23. first penetrating ring body; 24. mounting protruding ring; 3. second sealing ring; 31. second groove; 32. second fixed ring body; 33. second penetrating ring body; 331. second positioning hole; 34. mounting groove; 4. valve cap; 5. mounting sleeve; 6. first compensation assembly; 61. first connecting sleeve; 62. first spring; 63. first jacking sleeve; 64. first positioning column; 7. second compensation assembly; 71. second connecting sleeve; 72. second spring; 73. second jacking sleeve; 74. second positioning column. DETAILED DESCRIPTION

[0022] The present application will be further described in detail below with reference to the accompanying drawings.

[0023] The present application provides a valve nozzle structure with high sealing performance, as shown in Figures 1 to 5, including the pipe body 1, the outer surface of the pipe body 1 is uniformly provided with the fixed convex ring 11 coaxially, the first sealing ring 2 and the second sealing ring 3 are sleeved on the pipe body 1, the diameter of the first sealing ring 2 and the second sealing ring 3 is same with the diameter of the connecting hole of the hub, and is used for being arranged in the connecting hole, the diameter of the pipe body 1 is smaller than the diameter of the connecting hole, and is equal to the inner circumferential diameter of the first sealing ring 2 and the second sealing ring 3, the first recess 21 is formed in the first sealing ring 2 corresponding to the fixed convex ring 11, the number of the first recess 21 is half of the number of the fixed convex ring 11, the second recess 31 is formed in the second sealing ring 3 corresponding to the fixed convex ring 11, the number of the second recess 31 is half of the number of the fixed convex ring 11, the first sealing ring 2 and the second sealing ring 3 are oppositely arranged, the first sealing ring 2 and the second sealing ring 3 are fixed on the pipe body 1 by being embedded in the first recess 21 and the second recess 31 through the fixed convex ring 11, the first sealing ring 2 is a first rubber ring, and the second sealing ring 3 is a second rubber ring, so that, during installation, the pipe body 1 is arranged in the connecting hole of the hub first, then the first sealing ring 2 and the second sealing ring 3 are respectively sleeved in the pipe body 1 from both ends of the pipe body 1, and are respectively moved in the direction of approaching each other, the first recess 21 on the first sealing ring 2 and the second recess 31 on the second sealing ring 3 are respectively clamped with the fixed convex ring 11 during the moving process, until the first sealing ring 2 abuts against the second sealing ring 3, the sealing is realized by clamping the first sealing ring 2 and the second sealing ring 3 into the connecting hole of the hub, the first sealing ring 2 and the second sealing ring 3 are fixed on the pipe body 1 by clamping the first recess 21 and the second recess 31 with the fixed convex ring 11 on the pipe body 1, compared with the prior art, the air valve structure with high sealing performance of the application has simple installation steps and stronger sealing performance.

[0024] As Figures 2 to 5 Figures 2 to 5As shown, the first sealing ring 2 comprises a first fixed ring body 22 and a first penetrating ring body 23, the diameter of the first fixed ring body 22 is larger than that of the first penetrating ring body 23, the diameter of the first penetrating ring body 23 matches that of the connecting hole of the hub, the first groove 21 is located in the first penetrating ring body 23, the second sealing ring 3 comprises a second fixed ring body 32 and a second penetrating ring body 33, the diameter of the second fixed ring body 32 is larger than that of the second penetrating ring body 33, the diameter of the second penetrating ring body 33 matches that of the connecting hole of the hub, the second penetrating ring body 33 is provided with a second groove 31 corresponding to the fixed convex ring 11, the second groove 31 is located in the second penetrating ring body 33, the first penetrating ring body 23 and the second penetrating ring body 33 are used for penetrating in the connecting hole, and the first penetrating ring body 23 is provided with a mounting convex ring 24 on the end face away from the first fixed ring body 22, the second penetrating ring body 33 is provided with a mounting groove 34 on the end face away from the second fixed ring body 32, the mounting convex ring 24 is embedded in the mounting groove 34, and the end face of the first penetrating ring body 23 away from the first fixed ring body 22 abuts against the end face of the second penetrating ring body 33 away from the second fixed ring body 32. In this way, during installation, the first penetrating ring body 23 and the second penetrating ring body 33 are sleeved on the pipe body 1 from both ends of the pipe body 1 until the end face of the first penetrating ring body 23 away from the first fixed ring body 22 abuts against the end face of the second penetrating ring body 33 away from the second fixed ring body 32, and the first penetrating ring body 23 and the second penetrating ring body 33 are connected through the embedding structure of the mounting groove 34 and the mounting convex ring 24, and then are fixed on the pipe body 1 through the embedding of the first groove 21 and the second groove 31 with the fixed convex ring 11. At this time, the first fixed ring body 22 and the second fixed ring body 32 abut against the inner side and the outer side of the hub respectively, further reinforcing the stability of the connecting structure between the first sealing ring 2, the second sealing ring 3, the pipe body 1 and the hub.

[0025] The pipe body 1 is formed with a first external thread 12 on one side, the gas valve cap 4 is threadedly connected on the first external thread 12, the first compensation assembly 6 is sleeved between the gas valve cap 4 and the first sealing ring 2, the pipe body 1 is formed with a second external thread 13 on the other side, the mounting sleeve 5 is threadedly connected on the second external thread 13, the second compensation assembly 7 is sleeved between the mounting sleeve 5 and the second sealing ring 3, the first compensation assembly 6 comprises a first connecting sleeve 61, a first spring 62 and a first jacking sleeve 63, the first jacking sleeve 63 is connected on the first fixed ring body 22, the first spring 62 is sleeved on the outer periphery of the pipe body 1, the first connecting sleeve 61 is elastically connected on the first spring 62 and is fixed on the gas valve cap 4 through a bolt, the first jacking sleeve 63 is provided with a first positioning column 64 at the end away from the first spring 62, the first fixed ring body 22 is formed with a first positioning hole 221 corresponding to the first positioning column 64 at the end away from the first penetrating ring body 23, the first positioning column 64 is penetrated in the first positioning hole 221, the second compensation assembly 7 comprises a second connecting sleeve 71, a second spring 72 and a second jacking sleeve 73, the second jacking sleeve 73 is connected on the second fixed ring body 32, the second spring 72 is sleeved on the outer periphery of the pipe body 1, the second connecting sleeve 71 is elastically connected on the second spring 72 and is fixed on the mounting sleeve 5 through a bolt, the second jacking sleeve 73 is provided with a second positioning column 74 at the second end away from the second spring 72, the second fixed ring body 32 is formed with a second positioning hole 331 corresponding to the second positioning column 74 at the second end away from the second penetrating ring body 33, the second positioning column 74 is penetrated in the second positioning hole 331, during installation, the first jacking sleeve 63, the first spring 62 and the first connecting sleeve 61 are sequentially sleeved on the pipe body 1, until the first positioning column 64 on the first jacking sleeve 63 is penetrated in the first positioning hole 221, then the gas valve cap 4 is fixed on the pipe body 1 through the first external thread 12, the gas valve cap 4 is gradually compressed in the screwing process, the force of the first jacking sleeve 63 jacking the first fixed ring body 22 is improved, then the second jacking sleeve 73, the second spring 72 and the second connecting sleeve 71 are sequentially sleeved on the pipe body 1, until the second positioning column 74 on the second jacking sleeve 73 is penetrated in the second positioning hole 331, then the mounting sleeve 5 is fixed on the pipe body 1 through the second external thread 13, the second spring 72 is gradually compressed in the screwing process of the mounting sleeve 5, the force of the second jacking sleeve 73 jacking the second fixed ring body 32 is improved, at the same time, the first fixed ring body 22 and the second fixed ring body 32 are abutted with each other under the elastic force of the first spring 62 and the second spring 72, the stability of the connecting structure between the first sealing ring 2, the second sealing ring 3 and the pipe body 1 is further improved.

[0026] The above are all preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: all equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A valve stem structure with high sealing performance, characterized in that: The device includes a tube body (1), on the outer surface of which fixed protrusions (11) are uniformly and coaxially arranged. A first sealing ring (2) and a second sealing ring (3) are fitted on the tube body (1). The diameters of the first sealing ring (2) and the second sealing ring (3) are the same as the diameter of the connecting hole of the hub and are used to pass through the connecting hole. A first groove (21) is formed in the first sealing ring (2) corresponding to the fixed protrusion (11). The number of the first grooves (21) is half the number of the fixed protrusions (11). A second groove (31) is formed in the second sealing ring (3) corresponding to the fixed protrusion (11). The number of the second grooves (31) is half the number of the fixed protrusions (11). The first sealing ring (2) and the second sealing ring (3) are arranged opposite to each other. The first sealing ring (2) and the second sealing ring (3) are fixed on the tube body (1) by being embedded in the first groove (21) and the second groove (31) through the fixed protrusion (11).

2. The high-sealing valve structure according to claim 1, characterized in that: The first sealing ring (2) includes a first fixed ring body (22) and a first through ring body (23). The diameter of the first fixed ring body (22) is larger than the diameter of the first through ring body (23). The diameter of the first through ring body (23) matches the diameter of the connecting hole of the hub. The first groove (21) is located inside the first through ring body (23). The second sealing ring (3) includes a second fixed ring body (32) and a second through ring body (33). The diameter of the second fixed ring body (32) is larger than the diameter of the second through ring body (33). The diameter of the second through ring body (33) matches the diameter of the connecting hole of the hub. A second groove (31) is provided in the second through ring body (33) corresponding to the fixed protrusion ring (11). The second groove (31) is located in the second through ring body (33). The first through-ring body (23) and the second through-ring body (33) are used to pass through the connection hole, and the end face of the first through-ring body (23) facing away from the first fixing ring body (22) abuts against the end face of the second through-ring body (33) facing away from the second fixing ring body (32).

3. The high-sealing valve structure according to claim 2, characterized in that: The first through-ring body (23) has a mounting protrusion (24) on one end face away from the first fixed ring body (22), and the second through-ring body (33) has a mounting groove (34) on one end face away from the second fixed ring body (32), and the mounting protrusion (24) is embedded in the mounting groove (34).

4. The high-sealing valve structure according to claim 2, characterized in that: A first external thread is formed on one side of the tube body (1), and a valve cap (4) is threaded onto the first external thread. A first compensation component (6) is sleeved between the valve cap (4) and the first sealing ring (2). A second external thread is formed on the other side of the tube body (1), and an installation sleeve (5) is threaded onto the second external thread. A second compensation component (7) is sleeved between the installation sleeve (5) and the second sealing ring (3).

5. The high-sealing valve structure according to claim 4, characterized in that: The first compensation component (6) includes a first connecting sleeve (61), a first spring (62) and a first top support sleeve (63). The first top support sleeve (63) is connected to the first fixed ring (22). The first spring (62) is sleeved on the outer periphery of the tube body (1). The first connecting sleeve (61) is elastically connected to the first spring (62) and fixed to the valve cap (4) by bolts. The first top support sleeve (63) is provided with a first positioning post (64) at the end facing away from the first spring (62), and the first fixed ring body (22) is provided with a first positioning hole (221) corresponding to the first positioning post (64) at the end facing away from the first through ring body (23), and the first positioning post (64) passes through the first positioning hole (221).

6. The high-sealing valve structure according to claim 4, characterized in that: The second compensation component (7) includes a second connecting sleeve (71), a second spring (72), and a second top support sleeve (73). The second top support sleeve (73) is connected to the second fixing ring (32). The second spring (72) is sleeved on the outer periphery of the tube body (1). The second connecting sleeve (71) is elastically connected to the second spring (72) and fixed to the mounting sleeve (5) by bolts. The second top support sleeve (73) has a second positioning post (74) at its two ends facing away from the second spring (72). The second fixed ring body (32) has a second positioning hole (331) at its two ends facing away from the second through ring body (33) corresponding to the second positioning post (74). The second positioning post (74) passes through the second positioning hole (331).

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