Anti-falling hub easy to disassemble and assemble

Abstract

The invention discloses an anti-falling easily-disassembled-assembled hub which comprises a hub body, the hub body comprises a peripheral supporting part, and the two axial sides of the peripheral supporting part are respectively an inner side part and an outer side part; a supporting convex ring is integrally connected to the periphery of the outer side part of the peripheral supporting part, a detachable baffle ring is arranged on the outer end face of the outer side part, and the periphery of the detachable baffle ring protrudes out of the supporting convex ring; an inner limiting block is installed on the side, facing the middle section of the peripheral supporting part, of the supporting protruding ring, abuts against the supporting protruding ring and is integrally connected with a protruding part, and the protruding part can protrude out of the supporting protruding ring. And an outer mounting ring groove for limiting a tire is formed among the detachable baffle ring, the inner limiting block and the supporting convex ring. According to the tire sidewall limiting device, the tire sidewall can be stably limited, and meanwhile, the tire is convenient to disassemble and assemble.

Description

Technical Field

[0001] This invention relates to a wheel hub, and more specifically, to a wheel hub that is easy to install and remove without detachment. Background Technology

[0002] Some off-road vehicle tires have high requirements for installation stability. During installation, both the inner and outer sides of the tire bead must be fixed at the same time to prevent the tire from collapsing and leaking air through clamping.

[0003] Since one side of the tire faces the inside of the vehicle and has less contact with the external environment, while the other side faces the outside of the vehicle and has more frequent contact with the external environment, the problem of collapse and air leakage is particularly prominent on the outer side of the tire.

[0004] Most existing anti-slip wheel hubs use a split anti-slip ring structure. Although the anti-slip ring can effectively block the tire bead outside, it is not good at supporting the inner side of the bead. If the support ring for supporting the inner side of the tire bead is integrally formed on the surface of the wheel hub, it will increase the overall size of the outer circumference of the wheel hub, which will make tire installation inconvenient.

[0005] Therefore, a new solution is needed to address this problem. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a wheel hub that is easy to install and remove.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an anti-detachment and easy-to-install wheel hub, comprising a wheel hub body, the wheel hub body including an outer peripheral support portion, the axial sides of the outer peripheral support portion being an inner portion and an outer portion, respectively; a support convex ring integrally connected to the outer periphery of the outer portion of the outer peripheral support portion, a detachable retaining ring provided on the outer end face of the outer portion, the outer periphery of the detachable retaining ring protruding beyond the support convex ring; an inner limiting block is installed on the support convex ring facing the middle section of the outer peripheral support portion, the inner limiting block abutting against the support convex ring, the inner limiting block integrally connected to a protruding portion, the protruding portion being able to protrude beyond the support convex ring; an outer mounting ring groove for limiting the tire is formed between the detachable retaining ring, the inner limiting block, and the support convex ring.

[0008] The present invention is further configured such that the outer periphery of the supporting protrusion ring forms an outer peripheral surface, and the supporting protrusion ring has an inner surface facing the middle section of the outer peripheral support portion; the supporting protrusion ring has a through hole, and the two ends of the through hole respectively penetrate the inner surface and the outer end face of the outer side portion.

[0009] The invention is further configured such that the inner limiting block is connected to a connecting rod, the connecting rod extending to the outer end face and being fixed by a nut.

[0010] The invention is further configured such that the inner limiting block has a support surface facing the inner side, and the connecting rod is connected to the support surface.

[0011] The invention is further configured such that a sealing ring groove is formed on the inner side corresponding to the outer periphery of the through hole, and an end face seal is installed in the sealing ring groove, wherein the end face seal and the support surface press against each other to seal.

[0012] The present invention is further configured such that a plurality of circumferential sealing elements are installed on the outer periphery of the connecting rod, and the outer periphery of the connecting rod is sealed to the inner periphery of the through hole by the circumferential sealing elements.

[0013] The present invention is further configured such that the protrusion protrudes beyond the support surface;

[0014] The invention is further configured such that the inner side surface is inclined towards the outer periphery, and the inner side surface is inclined towards the outer end face; the supporting surface is adapted to the inclination of the inner side surface.

[0015] The present invention is further configured such that the detachable retaining ring is detachably mounted on the outer end face of the outer side via a threaded connector;

[0016] The invention is further configured such that a retaining ring one and a retaining ring two are integrally connected to the outer periphery of the inner side of the outer peripheral support portion, and an inner mounting ring groove is formed between the retaining ring one and the retaining ring two; the inner mounting ring groove and the outer mounting ring groove can respectively install and limit the inner periphery of the tire.

[0017] The present invention is further configured such that the protrusion of the inner limiting block and the detachable retaining ring respectively press against and limit the inner and outer sides of the tire.

[0018] The present invention is further configured such that the inner limiting block can deflect along the axial direction of the connecting rod, and the deflection of the protrusion of the inner limiting block is adjusted to the inner side of the outer peripheral surface of the supporting protrusion ring.

[0019] The present invention is further configured such that the inner side of the supporting protrusion ring is provided with a positioning recess adapted to the inner limiting block, and a portion of the supporting protrusion ring can be embedded in the positioning recess to achieve positioning.

[0020] In summary, the present invention has the following beneficial effects:

[0021] At the outer bead position of the tire, the inner limiting block can be used for positioning. The inner side of the tire bead can be pressed between the inner limiting block and the removable retaining ring, which can clamp and fix the inner side of the tire bead, preventing the tire sidewall from collapsing inward. This can maintain the stability of the tire installation and facilitate the installation and removal of the tire. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the structure of an anti-detachment and easy-to-disassemble wheel hub in Embodiment 1;

[0023] Figure 2 for Figure 1 Enlarged view of a portion of the image;

[0024] Figure 3 This is a partial exploded view of an anti-detachment and easy-to-install wheel hub according to Embodiment 1;

[0025] Figure 4 This is a schematic diagram of the structure of an anti-detachment and easy-to-install wheel hub in the relaxed state of the inner limiting block in Embodiment 1;

[0026] Figure 5 This is a schematic diagram of the structure of an anti-detachment and easy-to-install wheel hub in Embodiment 1, showing the positioning recess;

[0027] Figure 6 This is a schematic diagram of the structure of an anti-detachment and easy-to-disassemble wheel hub in Embodiment 2;

[0028] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0029] Reference numerals: Hub body 1; Outer peripheral support 2; Inner side 21; Retaining ring one 211; Retaining ring two 212; Inner mounting ring groove 213; Outer side 22; Outer end face 220; Supporting convex ring 221; Outer peripheral surface 222; Inner side surface 223; Sealing ring groove 224; Through hole 225; Positioning recess 226; Adjusting screw hole 227; Connecting convex ring 228; Sealing end cap 229; End cap seal 2210; Removable 3. Unloading ring; 4. Inner limit block; 41. Protrusion; 42. Support surface; 43. Adjustable pressing part; 431. Pressing positioning groove; 44. Relief groove; 45. Rotating shaft; 5. Nut; 6. End face seal; 62. Peripheral surface seal; 7. Outer mounting ring groove; 8. Tire; 9. Connecting rod; 91. Stepped protruding ring; 92. Rotating connecting end; 10. Adjusting screw; 101. Adjusting pressing end; 102. Pressing extension rod; 103. Stepped surface; 104. Spring. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1

[0032] This embodiment discloses a non-detachable and easily detachable wheel hub, referring to... Figure 1As shown, the wheel hub body 1 includes an outer peripheral support 2, with an inner side 21 and an outer side 22 on its two axial sides.

[0033] When the tire 8 is installed, it is fitted onto the outer periphery of the wheel hub body 1, and the inner periphery of the tire 8 is respectively installed on the inner side 21 and the outer side 22 of the outer periphery support 2. The positioning structure on the outer periphery of the inner side 21 and the outer side 22 can block and limit the tire 8.

[0034] Reference Figures 1-4 As shown, a support protrusion ring 221 is integrally connected to the outer periphery of the outer side portion 22 of the outer peripheral support portion 2. A removable retaining ring 3 is installed on the outer end face 220 of the outer side portion 22. The outer periphery of the removable retaining ring 3 protrudes from the support protrusion ring 221 and can block and limit the outer end face of the tire 8. An outer peripheral surface 222 is formed on the outer periphery of the support protrusion ring 221, and the beak of the tire 8 is fitted onto the outer peripheral surface 222.

[0035] An inner limiting block 4 is installed on the middle section of the supporting protruding ring 221 facing the outer peripheral supporting part 2, and the inner limiting block 4 abuts against the supporting protruding ring 221. The inner limiting block 4 is integrally connected with a protrusion 41, which can protrude from the supporting protruding ring 221. An outer mounting ring groove is formed between the detachable retaining ring 3, the inner limiting block 4, and the supporting protruding ring 221.

[0036] After installation, the inner circumference of the tire 8's sidewall can fit onto the outer circumference of the supporting ring 221. Axially, the removable retaining ring 3 and the inner limiting block 4 provide obstruction and restriction for the inner and outer sides of the tire 8, thus facilitating tire 8 installation. The protruding portion 41 of the inner limiting block 4 and the removable retaining ring 3 respectively press and limit the inner and outer sides of the tire 8's sidewall, effectively obstructing and limiting the tire 8's sidewall axially, preventing the sidewall from shifting inwards and causing air leakage.

[0037] In this embodiment, a number of inner limiting blocks 4 are provided, and they are distributed in a ring array. The multiple inner limiting blocks 4 can form a uniform pressure block on the inner circumference of the tire 8 toe opening, ensuring the stability of the tire 8 installation state.

[0038] The supporting convex ring 221 has a through hole 225, and the inner limiting block 4 is fixedly connected to the connecting rod 9. During installation, the connecting rod 9 passes through the through hole 225 of the inner limiting block 4 and is locked in place by the nut 5, thereby fixing the position of the inner limiting block 4.

[0039] Specifically, refer to Figure 3As shown, an inner surface 223 is formed on the support ring 221 in the direction of the middle section of the outer peripheral support portion 2. The two ends of the through hole 225 pass through the inner surface 223 and the outer end face 220 on both sides of the outer portion 22, respectively, and the direction of the through hole 225 is approximately parallel to the axis of the hub.

[0040] The inner limiting block 4 has a support surface 42 facing the inner side 223. A connecting rod 9 is fixedly connected to the support surface 42. The connecting rod 9 can serve as a support structure for the installation of the inner limiting block 4. During installation, the connecting rod 9 extends from the inner side 223 of the through hole 225, passes through the through hole 225, extends to the outer end face 220, and can be fixed by the nut 5.

[0041] By tightening nut 5, connecting rod 9 and inner limiting block 4 can be tightened and fixed, maintaining the support of inner limiting block 4 inside the tire 8 bead. When it is necessary to remove or install the tire, inner limiting block 4 protrudes from the outer peripheral surface 22 of the supporting convex ring 221, making it inconvenient to remove or install the tire. By loosening nut 5, connecting rod 9 and inner limiting block 4 can be prevented from loosening. Then, by axially rotating inner limiting block 4 around connecting rod 9, the deflection of the protrusion 41 of inner limiting block 4 can be adjusted to the inner side of the outer peripheral surface 222 of supporting convex ring 221. This ensures that inner limiting block 4 will not obstruct the removal or installation of tire 8 bead, making it convenient to remove or install tire 8.

[0042] To achieve a seal at the connection between the connecting rod 9 and the inner limiting block 4, multiple sealing structures can be installed on the outer periphery of the connecting rod 9. Specifically, a sealing ring groove 224 is formed on the inner surface 223 corresponding to the outer periphery of the through hole 225, and an end face seal 6 is installed within the sealing ring groove 224. When the inner limiting block 4 is installed, the supporting surface 42 of the inner limiting block 4 abuts against the inner surface 223, and the end face seal 6 and the supporting surface 42 press against each other to create a seal.

[0043] In addition, multiple annular grooves are formed on the outer periphery of the connecting rod 9, and a circumferential seal 62 is fitted inside the annular grooves. When the connecting rod 9 is inserted into the inner periphery of the through hole 225, the outer periphery of the connecting rod 9 and the inner periphery of the through hole 225 are sealed by the circumferential seal 62, thereby forming a multi-seal structure on the outer periphery of the connecting rod 9.

[0044] In this embodiment, the inner surface 223 is inclined towards the outer periphery, and the inner surface 223 is inclined towards the outer end face 220; the support surface 42 is inclined and adapted to the inner surface 223. Moreover, the protrusion 41 protrudes from the support surface 42, so that after the inner limiting block 4 is fixedly installed, part of the protrusion 41 will be located outside the outer periphery 222 of the support ring 221. The protrusion 41 can limit the deflection of the inner limiting block 4, thereby maintaining the installation stability of the inner limiting block 4 in a fixed state.

[0045] In addition, in this embodiment, the detachable retaining ring 3 is detachably installed on the outer end face 220 of the outer side portion 22 via a threaded connector, which facilitates the installation and removal of the detachable retaining ring 3. Furthermore, an annular seal is installed between the detachable retaining ring 3 and the outer end face 220 of the outer side portion 22 to maintain the sealing state of the connection.

[0046] A retaining ring 1 211 and a retaining ring 212 are integrally connected to the outer circumference of the inner side portion 21 of the outer peripheral support portion 2, and an inner mounting ring groove 213 is formed between the retaining ring 1 211 and the retaining ring 212. The retaining ring 1 211 is located on the outer side, and the protrusion height of the retaining ring 1 211 is greater than that of the retaining ring 212. The shape of the inner mounting ring groove 213 is adapted to the toe opening of the tire 8. When the tire is installed, the toe openings on both sides of the tire can be respectively inserted into the inner mounting ring groove 213 and the outer mounting ring groove, which can respectively limit the inner circumference of the tire 8 to maintain the stability of the tire installation.

[0047] Furthermore, to maintain the positional accuracy of the inner limiting block 4, a positioning recess 226 adapted to the inner limiting block 4 is provided on the inner side 223 of the supporting protrusion 221. A portion of the supporting protrusion 221 can be embedded in the positioning recess 226 for positioning, thereby ensuring the positional stability of the inner limiting block 4 in a fixed state and ensuring that the deflection angle of the inner limiting block 4 is in a defined state. Additionally, a marking structure can be provided at the end of the connecting rod 9 extending beyond the roller. This marking structure allows observation of the deflection position of the inner limiting block 4, facilitating its position adjustment.

[0048] In this embodiment, the anti-detachable and easy-to-install wheel hub is installed by first removing the detachable retaining ring 3; then loosening the nut 5 of the inner limiting block 4, and then adjusting the inner limiting block 4 to deflect around the connecting rod 9, so that the protrusion 41 of the inner limiting block 4 can deflect to the inner circumference of the supporting protrusion ring 221, and will not protrude from the outer circumference of the supporting protrusion ring 221; then, the tire 8 is fitted onto the outer circumference of the outer supporting part 2, and the toe opening of one side of the tire 8 is fitted into the mounting inner mounting ring groove 213 of the inner side part 21; then the toe opening of one side of the tire 8 is fitted onto the outer circumference of the supporting protrusion ring 221.

[0049] The detachable retaining ring 3 is installed and fixed on the outer end face 220 of the wheel hub body 1, and can form a blockage on the outside of the tire sidewall of the tire 8 through the detachable retaining ring 3.

[0050] By rotating the adjusting connecting rod 9, the inner limiting block 4 will deflect along with the connecting rod 9, and the protrusion 41 of the inner limiting block 4 will deflect outward until the protrusion 41 protrudes beyond the outer peripheral surface 222 of the supporting protrusion ring 221; then, by tightening the nut 5, the connecting rod 9 and the inner limiting block 4 are locked and fixed. At this time, the protrusion 41 of each inner limiting block 4 can form support on the inner side of the tire 8 bead; the protrusion 41 of the inner limiting block 4 and the detachable retaining ring 3 can form elastic compression and limiting on the inner and outer sides of the tire 8 bead, thereby maintaining the installation stability of the tire 8.

[0051] Example 2

[0052] This embodiment discloses an easy-to-disassemble wheel hub with anti-detachment design, based on Embodiment 1, and further referring to... Figure 6 , 7 A detailed description is provided; compared with Embodiment 1, this embodiment further modifies the connection structure between the connecting rod 9 and the inner limiting block 4, and correspondingly, the sealing structure at the connection of the connecting rod 9 is also adapted.

[0053] In this embodiment, the connecting rod 9 has a rotating connecting end 92 facing the inner limiting block 4. The rotating connecting end 92 and the inner limiting block 4 are connected by a rotating shaft 45, so that the inner limiting block 4 can achieve deflection adjustment within a certain deflection angle.

[0054] Specifically, a clearance groove 44 is formed on the support surface 42 of the inner limiting block 4, and the rotating connection end 92 of the connecting rod 9 extends into the clearance groove 44 and is rotatably connected through the rotating shaft 45. The inner limiting block 4 can generate lever deflection movement relative to both sides of the rotating shaft 45, with a protrusion 41 on one side and an adjusting pressure part 43 on the other side.

[0055] In this embodiment, the locking and fixing of the connecting rod 9 is not directly achieved through the pressure between the inner limiting block 4 and the supporting protruding ring 221. Instead, it is achieved through the mutual pressure between the connecting rod 9 and the interior of the sealing ring groove 224. A stepped protruding ring 91 is integrally formed on the outer circumference of the connecting rod 9. The stepped protruding ring 91 can be embedded and installed into the sealing ring groove 224. The end face seal 6 presses against the bottom surface of the sealing ring groove 224 and the stepped protruding ring 91, thereby forming a pressure seal.

[0056] After the connecting rod 9 is locked and fixed by the nut 5, the inner limiting block 4 is not in a fixed state, but can deflect at a certain angle around the rotating shaft 45. The supporting surface 42 of the inner limiting block 4 is not completely pressed and fixed against the supporting protrusion 221. A certain gap is formed between the supporting surface 42 and the inner side surface 223 of the supporting protrusion 221.

[0057] In this embodiment, a spring 104 is elastically pressed against the adjusting pressure part 43. Under the action of the spring, the inner limiting block 4 can deflect towards the inner side 223 of the supporting ring 221 on the side facing the protrusion 41, and maintain a state of mutual contact. When the tire 8 is installed, the protrusion 41 of the inner limiting block 4 will press against each other towards the inner side of the tire 8's toe opening, thereby maintaining the clamping pressure on the tire 8's toe opening.

[0058] Furthermore, the inner limiting block 4 is movable, capable of deflection within a small angle range. The deflection angle is directly determined by the gap between the supporting surface 42 and the inner side surface 223 of the supporting convex ring 221, and the deflection angle should be approximately 1-2°. This movable structure creates a buffer space. When the tire 8 is subjected to a side impact, the inner limiting block 4 can absorb the impact energy through elastic deflection, preventing direct force from damaging the toe portion of the tire 8.

[0059] Moreover, after the inner limit block 4 deflects, the angle of its deflection is limited by the adjusting pressure part 43, so that the amount of displacement of the protrusion 41 is limited. After the lateral repositioning, the inner limit block 4 will elastically reset again, thereby achieving the state of the protrusion 41 of the inner limit block 4 pressing against the inner side of the toe opening of the tire 8.

[0060] Reference Figure 6 , Figure 7 As shown, the supporting protruding ring 221 is also provided with through adjusting screw holes 227. The number of adjusting screw holes 227 corresponds one-to-one with the inner limiting block 4, and the position of the adjusting screw holes 227 is opposite to the adjusting pressing part 43 of the inner limiting block 4. Specifically, one end of the adjusting screw hole 227 extends to the inner side surface 223 of the supporting protruding ring 221, and the opening is opposite to the adjusting pressing part 43; the other end extends to the outer end face 220, and the outer end face 220 is integrally formed with a connecting protruding ring 228 corresponding to the outer circumference of the adjusting screw hole 227.

[0061] An adjusting screw 10 is threaded into the adjusting screw hole 227. The adjusting screw 10 is completely located inside the adjusting screw hole 227, and an internal hexagon structure is machined on the side of the adjusting screw 10 facing the outer end face 220, so that tools can be inserted into the adjusting screw hole 227 to adjust the adjusting screw 10 by thread rotation.

[0062] A sealing end cap 229 is threaded onto the outside of the connecting convex ring 228, and an end cap seal 2210 is installed between the sealing end cap 229 and the connecting convex ring 228, which can keep the connection of the sealing end cap 229 sealed and effectively maintain the sealing performance inside the tire.

[0063] Reference Figure 7As shown, the adjusting screw 10 has an adjusting pressing end 101 facing the adjusting pressing part 43. When installed, the spring 104 is partially embedded in the adjusting screw hole 227. One end of the spring 104 presses against the stepped surface 103 of the adjusting pressing end 101, and the other end presses against the adjusting pressing part 43, thereby maintaining an elastic pressing state and providing elastic support for the adjusting pressing part 43 of the inner limit block 4.

[0064] During adjustment, the compression degree of spring 104 can be adjusted by adjusting the screw 10, thereby adjusting the elastic buffering performance of the inner limiting block 4. When the compression degree of spring 104 is large, the elastic pressure of spring 104 on inner limiting block 4 is greater, and the support at the tire bead is more stable. When the compression degree of spring 104 is small, the elastic pressure on inner limiting block 4 is smaller, and the tire bead can generate elastic movement after being subjected to a small lateral impact, thus appropriately improving the flexibility of tire support protection.

[0065] Furthermore, a pressing extension rod 102 is integrally fixedly connected to the adjusting pressing end 101 of the adjusting screw 10. The pressing extension rod 102 is coaxially arranged with the adjusting screw 10, and its outer diameter is smaller than that of the adjusting screw 10. When installed, the spring 104 is fitted over the pressing extension rod 102, thereby guiding and limiting the position of the spring 104.

[0066] Furthermore, during the adjustment process, the adjusting screw 10 can be threaded towards the adjusting pressure part 43. After adjustment to a certain extent, the end of the pressure extension rod 102 will directly press against the adjusting pressure part 43, thereby pressing and fixing it against the bracket of the adjusting pressure part 43, thus completely fixing the position of the inner limit block 4. At this time, the inner limit block 4 will not be able to achieve elastic buffering and will remain in a completely fixed state.

[0067] Furthermore, a pressing and positioning groove 431 is provided on the surface of the adjusting pressing part 43 of the inner limiting block 4. When the end of the pressing extension rod 102 directly presses against the adjusting pressing part 43, the end of the pressing extension rod 102 can be inserted into the pressing and positioning groove 431, thereby further limiting the deflection of the inner limiting block 4.

[0068] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A demountable wheel hub, characterized in that, The application relates to a hub body (1) comprising an outer peripheral support part (2), the axial two sides of the outer peripheral support part (2) being respectively an inner side part (21) and an outer side part (22); the outer side part (22) of the outer peripheral support part (2) is integrally connected with a support convex ring (221), the outer end surface (220) of the outer side part (22) is provided with a detachable retaining ring (3), the outer periphery of the detachable retaining ring (3) protrudes from the support convex ring (221); the support convex ring (221) is mounted with an inner limiting block (4) towards the middle section side of the outer peripheral support part (2), the inner limiting block (4) abuts against the support convex ring (221), the inner limiting block (4) is integrally connected with a protruding part (41), the protruding part (41) can protrude from the support convex ring (221); an outer mounting ring groove for limiting a tire (8) is formed between the detachable retaining ring (3), the inner limiting block (4) and the support convex ring (221).

2. The anti-pullout easy dismounting wheel hub according to claim 1, characterized in that, The outer periphery of the support convex ring (221) forms an outer peripheral surface (222), the support convex ring (221) is formed with an inner side surface (223) towards the middle section direction of the outer peripheral support part (2); the support convex ring (221) is provided with a through hole (225), the two ends of the through hole (225) respectively penetrate the inner side surface (223) and the outer end surface (220) on the two sides of the outer side part (22).

3. The anti-pullout easy dismounting wheel hub according to claim 2, characterized in that, The inner limiting block (4) is mounted with a connecting rod (9), the connecting rod (9) extends to the outer end surface (220) and can be fixed through a nut (5).

4. The anti-pullout easy dismounting wheel hub according to claim 3, characterized in that, The inner limiting block (4) has a support surface (42) towards the inner side surface (223), the connecting rod (9) is connected to the support surface (42).

5. The anti-pull easy dismounting wheel hub according to claim 4, characterized in that, The inner side surface (223) is provided with a sealing ring groove (224) corresponding to the outer periphery position of the through hole (225), an end surface sealing element (6) is mounted in the sealing ring groove (224), the end surface sealing element (6) and the support surface (42) abut against and seal each other.

6. The anti-pullout easy dismounting wheel hub according to claim 4, characterized in that, The outer periphery of the connecting rod (9) is mounted with a plurality of peripheral surface sealing elements (62), the outer periphery of the connecting rod (9) and the inner periphery of the through hole (225) are sealed through the peripheral surface sealing elements (62).

7. The anti-pullout easy dismounting wheel hub according to claim 4, characterized in that, The protruding part (41) protrudes from the support surface (42); the inner side surface (223) is inclined towards the outer peripheral direction, the inner side surface (223) is inclined towards the outer end surface (220) direction; the support surface (42) is inclinedly matched with the inner side surface (223).

8. The anti-pull easy dismounting wheel hub according to claim 1, wherein, The detachable retaining ring (3) is detachably mounted on the outer end surface (220) of the outer side part (22) through a threaded connecting piece; the inner side part (21) of the outer peripheral support part (2) is integrally connected with a retaining ring one (211) and a retaining ring two (212), an inner mounting ring groove (213) is formed between the retaining ring one (211) and the retaining ring two (212); the inner mounting ring groove (213) and the outer mounting ring groove can respectively limit the inner periphery of the tire (8).

9. The anti-pull easy dismounting wheel hub according to claim 1, wherein, The convex part (41) of the inner limiting block (4) and the detachable retaining ring (3) are respectively pressed against each other to limit the inner and outer sides of the tire (8); the inner limiting block (4) can be axially deflected along the connecting rod (9), and the deflection of the convex part (41) of the inner limiting block (4) is adjusted to the inner side of the outer peripheral surface (222) of the supporting convex ring (221).

10. The anti-pull easy dismounting wheel hub according to claim 1, characterized in that, The inner side surface (223) of the supporting convex ring (221) is provided with a positioning recess (226) matched with the inner limiting block (4), and part of the supporting convex ring (221) can be embedded in the positioning recess (226) to realize positioning.

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