Inflatable built-in hub

Abstract

The utility model provides an inflatable built-in hub which comprises a rim, the rim comprises an outer side part, an inner side part and a connecting part connecting the outer side part and the inner side part, an annular space is formed among the outer side part, the inner side part and the connecting part, and the inflatable built-in hub further comprises a connecting pipe and a valve core. The connecting pipe is arranged on the outer side portion and extends into the annular space, an inner hole of the connecting pipe is communicated to the side, away from the inner side portion, of the outer side portion, and the valve core is located in the inner hole. According to the scheme, the inflation part is internally arranged and is different from the scheme that the inflation part protrudes out of the outer side surface of the hub in the prior art, collision and damage caused by external arrangement of the inflation part can be avoided, and the design is more attractive.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wheel hubs, and particularly relates to a built-in inflation wheel hub. BACKGROUND

[0002] The wheel hub is a part of a vehicle for supporting a tire, which is supported on the inner side of the tire and is fixed to the axle of the vehicle. The existing tire is inflated by an American valve or a British valve, and the inflation valve is usually protruded from the outer side surface of the wheel hub, so that the inflation part on the outer side is easily damaged by collision and is not beautiful.

[0003] Therefore, it is necessary to provide a built-in inflation wheel hub to avoid the inflation part from being damaged by collision due to being externally arranged. CONTENT

[0004] In view of the above problems of the prior art, the present application aims to provide a built-in inflation wheel hub to avoid the inflation part from being damaged by collision due to being externally arranged.

[0005] According to the embodiment of the present application, the first scheme is provided as follows: a built-in inflation wheel hub, comprising a wheel rim, the wheel rim comprising an outer side portion, an inner side portion, and a connecting portion connecting the outer side portion and the inner side portion, an annular space being formed between the outer side portion, the inner side portion, and the connecting portion, the built-in inflation wheel hub further comprising a connecting pipe and a valve core, the connecting pipe being arranged in the outer side portion and extending into the annular space, an inner hole of the connecting pipe being communicated to one side of the outer side portion away from the inner side portion, and the valve core being arranged in the inner hole.

[0006] In a preferred scheme, the valve core is provided with a first external thread for mounting the valve core in the inner hole.

[0007] In a preferred scheme, the inner portion of the connecting pipe is provided with a first internal thread, and the first external thread is threadedly connected with the first internal thread.

[0008] In a preferred scheme, the inner portion of the connecting pipe is provided with a first internal thread, and the built-in inflation wheel hub further comprises a valve sleeve, an outer periphery of the valve sleeve being provided with a second external thread, the second external thread being threadedly connected with the first internal thread, an inner periphery of the valve sleeve being provided with a second internal thread, and the second internal thread being threadedly connected with the first external thread.

[0009] In a preferred scheme, an axial end of the valve sleeve is provided with a boss portion, when the valve sleeve is mounted in the connecting pipe, the boss portion is arranged in the annular space, and a sealing ring is further arranged between the boss portion and the connecting pipe.

[0010] In a preferred scheme, the gas valve sleeve is further provided with a third external thread, the outer diameter of the third external thread is smaller than the outer diameter of the second external thread, the second external thread is located between the third external thread and the boss part, the outer side part is provided with a connecting groove in communication with the inner hole on the side away from the inner side part, and the gas valve sleeve extends into the connecting groove to form an annular insertion groove between the third external thread and the connecting groove.

[0011] In a preferred scheme, the boss part has a cross section in the shape of a regular hexagon.

[0012] In a preferred scheme, the outer side part is provided with a connecting groove in communication with the inner hole on the side away from the inner side part, and the connecting groove is further provided with a valve cover, and the valve cover can be completely accommodated in the connecting groove.

[0013] In a preferred scheme, the valve cover is provided with a spring buckle buckled with the connecting groove or a connecting hole threadedly connected with the connecting groove.

[0014] In a preferred scheme, the valve cover is provided with a fourth external thread threadedly connected with the connecting groove on the outer periphery of the valve cover, and the outer end surface of the valve cover is provided with a T-shaped groove or a cross-shaped groove.

[0015] The utility model has the following beneficial effects:

[0016] In the scheme of the application, the inflation part is built-in, which is different from the scheme that the inflation part protrudes from the outer side surface of the hub in the prior art, and can avoid the inflation part from being damaged due to external placement, and the design is more beautiful. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the inflation built-in type hub according to an embodiment of the utility model;

[0018] Figure 2 It is an exploded structural schematic view of the inflation built-in type hub according to an embodiment of the utility model;

[0019] Figure 3 It is Figure 2 It is an enlarged view of a position a in the middle;

[0020] Figure 4 It is a structural schematic view of the gas valve sleeve according to an embodiment of the utility model;

[0021] Figure 5 It is a perspective view of the inflation built-in type hub from another viewing angle according to an embodiment of the utility model;

[0022] Figure 6 It is a structural schematic view in the connecting groove according to an embodiment of the utility model;

[0023] Figure 7 The structure diagram of the valve cover is shown in an embodiment of the utility model.

[0024] Reference signs: 10, rim; 11, outer side; 12, inner side; 13, connecting part; 14, annular space; 15, connecting groove; 151, annular insertion slot; 20, connecting pipe; 21, inner hole; 22, first inner thread; 30, valve core; 31, first outer thread; 40, valve sleeve; 41, second outer thread; 42, second inner thread; 43, boss part; 44, third outer thread; 50, sealing ring; 60, valve cover; 61, spring buckle; 62, fourth outer thread; DETAILED DESCRIPTION

[0025] In order to make the technical personnel in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] It should be noted that when an element is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or indirectly on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or component referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple", "several" is two or more, unless otherwise explicitly and specifically limited.

[0029] It is to be understood that the structures, proportions, sizes, etc. shown in the drawings of the present specification are merely used to cooperate with the disclosed content, to be understood and read by those skilled in the art, and are not used to limit the defined conditions of the application, and therefore do not have technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effect and purpose that can be achieved by the application, should still fall within the scope of the disclosed technical content.

[0030] Reference can be made to Figure 1 The utility model discloses an embodiment provides a kind of built-in type wheel hub, built-in type wheel hub includes wheel rim 10, wheel rim 10 includes outer side 11, inner side 12 and connecting portion 13, when wheel hub is installed on vehicle body, outer side 11 is located at the side visible to wheel, connecting portion 13 connects outer side 11 with inner side 12, and annular space 14 is formed between outer side 11, inner side 12 and connecting portion 13.Among them, built-in type wheel hub further includes connecting pipe 20 and valve core 30, connecting pipe 20 is located in outer side 11, and connecting pipe 20 extends into annular space 14, the inner hole 21 of connecting pipe 20 is communicated to the side of outer side 11 away from inner side 12, to make user can easily inflate, valve core 30 is located in inner hole 21.

[0031] In the embodiment, the inflation part is built-in, which is different from the scheme that the inflation part protrudes from the outer side surface of the wheel hub in the prior art, and can avoid the inflation part from being damaged due to external placement, and the design is more beautiful.

[0032] In a preferred embodiment, the valve core 30 is provided with a first external thread 31 for mounting the valve core 30 in the inner hole 21. Among them, based on the threaded connection to install the valve core 30, two embodiments are proposed here:

[0033] In an embodiment, the inside of the connecting pipe 20 is provided with a first internal thread 22, and the first external thread 31 is threadedly connected with the first internal thread 22, so as to directly mount the valve core 30 on the inner wall of the connecting pipe 20.

[0034] In another embodiment, the built-in type wheel hub further includes a valve sleeve 40, and the valve core 30 is not directly mounted on the inner wall of the connecting pipe 20, but is indirectly connected to the inside of the connecting pipe 20 through the valve sleeve 40. Specifically, reference can be made to Figures 2-4 and Figure 6 The inside of the connecting pipe 20 is provided with a first internal thread 22, the outer periphery of the valve sleeve 40 is provided with a second external thread 41, the second external thread 41 is threadedly connected with the first internal thread 22, so that the valve sleeve 40 can be directly connected to the inner wall of the connecting pipe 20, the inner periphery of the valve sleeve 40 is provided with a second internal thread 42, the second internal thread 42 is threadedly connected with the first external thread 31, so that the valve core 30 can be directly connected to the inner wall of the valve sleeve 40.

[0035] Furthermore, the valve sleeve 40 has a boss 43 at one axial end. When the valve sleeve 40 is installed on the connecting pipe 20, the boss 43 is located in the annular space 14, and a sealing ring 50 is provided between the boss 43 and the connecting pipe 20.

[0036] Furthermore, the valve sleeve 40 is also provided with a third external thread 44, the outer diameter of the third external thread 44 is smaller than the outer diameter of the second external thread 41, the second external thread 41 is located between the third external thread 44 and the boss portion 43, the outer portion 11 is provided with a connecting groove 15 communicating with the inner hole 21 on the side away from the inner portion 12, the valve sleeve 40 extends into the connecting groove 15, so that the third external thread 44 and the connecting groove 15 form an annular slot 151.

[0037] Preferably, the cross-section of the boss portion 43 is a regular hexagon, which allows the valve sleeve 40 to be easily disassembled and assembled using tools such as an Allen wrench.

[0038] In a preferred embodiment, reference may be made to Figure 5 and Figure 6 The outer side 11 has a connecting groove 15 on the side opposite to the inner side 12. The connecting groove 15 is connected to the inner hole 21. A valve cover 60 is also provided on the connecting groove 15. The valve cover 60 can be completely received in the connecting groove 15. The inflation part is completely built-in, and the valve cover 60 is also received in the connecting groove 15, which makes the wheel more concise and beautiful in appearance.

[0039] In a preferred embodiment, when the outer surface of the outer portion 11 has a certain curvature, it can be referred to Figure 2 and Figure 3 A spring clip 61 may be provided on the side of the valve cover 60. The valve cover 60 can be snapped into the connecting groove 15 via the spring clip 61. When it is necessary to open the valve cover 60, it can be unlocked by pressing the spring clip 61. Alternatively, the valve cover 60 may be provided with a connecting hole, so that the valve cover 60 can be installed in the connecting groove 15 by screws.

[0040] In a preferred embodiment, when the outer surface of the outer portion 11 is relatively flat, the valve cover 60 can be threaded into the connecting groove 15, as can be referred to. Figure 7 The valve cover 60 has a fourth external thread 62 on its outer periphery, and the outer end face of the valve cover 60 has a slot or a cross slot, so that the valve cover 60 can be easily disassembled and assembled with a slotted screwdriver or a cross screwdriver.

[0041] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pneumatic run-flat wheel hub comprising a rim including an outer side portion, an inner side portion, and a connecting portion connecting the outer side portion and the inner side portion, and an annular space formed between the outer side portion, the inner side portion, and the connecting portion, characterized in that, The air-filled hub further comprises a connecting pipe and a valve core, the connecting pipe is arranged in the outer side and extends into the annular space, an inner hole of the connecting pipe is communicated to a side of the outer side away from the inner side, and the valve core is arranged in the inner hole.

2. The pneumatic hub as defined in claim 1, wherein, The valve core is provided with a first external thread for mounting the valve core in the inner hole.

3. The pneumatic hub as defined in claim 2, wherein, The inner part of the connecting pipe is provided with a first internal thread, and the first external thread is threadedly connected with the first internal thread.

4. The pneumatic hub as defined in claim 2, wherein, The inner part of the connecting pipe is provided with a first internal thread, and the air-filled hub further comprises a valve sleeve, an outer periphery of the valve sleeve is provided with a second external thread, the second external thread is threadedly connected with the first internal thread, an inner periphery of the valve sleeve is provided with a second internal thread, and the second internal thread is threadedly connected with the first external thread.

5. The pneumatic hub as defined in claim 4, wherein, An axial end of the valve sleeve is provided with a boss part, when the valve sleeve is mounted in the connecting pipe, the boss part is arranged in the annular space, and a sealing ring is further arranged between the boss part and the connecting pipe.

6. The pneumatic hub as defined in claim 5, wherein, The valve sleeve is further provided with a third external thread, an outer diameter of the third external thread is smaller than an outer diameter of the second external thread, the second external thread is arranged between the third external thread and the boss part, the outer side is provided with a connecting groove communicated with the inner hole at a side away from the inner side, and the valve sleeve extends into the connecting groove, so that an annular annular insertion groove is formed between the third external thread and the connecting groove.

7. The pneumatic hub as defined in claim 5, wherein, A cross section of the boss part is a regular hexagon.

8. The pneumatic hub of claim 1, wherein, The outer side is provided with a connecting groove communicated with the inner hole at a side away from the inner side, and a valve cover is further arranged on the connecting groove, and the valve cover can be completely accommodated in the connecting groove.

9. The pneumatic hub as defined in claim 8, wherein, The valve cover is provided with a spring buckle buckled with the connecting groove, or a connecting hole threadedly connected with the connecting groove.

10. The pneumatic hub as defined in claim 8, wherein, An outer periphery of the valve cover is provided with a fourth external thread threadedly connected with the connecting groove, and an outer end surface of the valve cover is provided with a one-way groove or a cross groove.

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