A two-piece tubeless self-sealing wheel

Abstract

The utility model discloses a two-piece type tubeless self-sealing wheel, characterized in that: including tubeless pneumatic tire body, with the hub of tire body adaptation connection, set up at tire body and the hub one side junction place's bead seat and the pneumatic rod of penetrating the hub, tire body's bead part integral moulding has a plurality of with the ring -like distribution of bead seat and the sealed connection of hub O -ring, the utility model discloses the setting of annular O -ring, O -ring and the hook portion of bead seat, the fixed part sealed surface of hub close adhesion, utilize the elastic deformation of O -ring to fill the gap, form sealed structure, simultaneously hook portion both sides edge resist O -ring circumference, force O -ring to produce radial elastic deformation, further enhance sealed density, effectively prevent tire body air leakage, satisfy the self -sealing demand of tubeless wheel, guarantee the pressure stability of wheel internal air cavity, improved the driving safety and stability, reduced the manufacturing and maintenance cost of inner tube, with good economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of wheel manufacturing technology, specifically a two-piece tubeless self-sealing wheel. Background Technology

[0002] Traditional tubed wheels have many inherent defects. The inner tube is easily punctured by sharp objects, and its airtightness depends entirely on the quality of the inner tube. While the widespread use of tubeless wheels has improved these problems to some extent, there is still room for improvement in self-sealing performance, component connection stability, and sealing structure reliability. Existing tubeless wheels often suffer from air leakage and component loosening during vehicle operation due to insufficient tightness between the tire body and components such as the rim and bead seat. This not only affects the normal use of the vehicle but also poses a serious threat to driving safety. Therefore, developing a reliable and stable two-piece tubeless self-sealing wheel has become an urgent problem to be solved in the industry. To this end, a two-piece tubeless self-sealing wheel is proposed. Utility Model Content

[0003] The purpose of this invention is to solve the above problems by proposing a two-piece tubeless self-sealing wheel.

[0004] To achieve the above objectives, the following technical solution is provided: a two-piece tubeless self-sealing wheel, characterized in that: it includes a tubeless inflatable tire carcass, a wheel hub adapted to and connected to the tire carcass, a bead seat disposed at the connection point between the tire carcass and the wheel hub on one side, and an inflation rod penetrating the wheel hub and extending one end into the air cavity inside the tire carcass, with the other end used for connecting an external inflation device; the bead portion of the tire carcass is integrally formed with a plurality of O-rings arranged in a ring and sealingly connected to the bead seat and the wheel hub; the bead seat includes a hook portion that fits against the outer wall of the tire carcass and a snap-fit ​​portion that engages with the wheel hub to limit the displacement of the bead seat relative to the wheel hub; one side of the wheel hub is provided with a fixing portion that fits against the outer wall of the tire carcass, and the other side is provided with an opening portion for installing the bead seat.

[0005] Preferably, the two sides of the hook portion abut against the outer periphery of the O-ring, forcing the O-ring to undergo radial elastic deformation to enhance the seal.

[0006] Preferably, the fixing part and the hook part of the bead seat are both arc-shaped structures, and their inner surfaces are closely fitted with the outer wall of the tire to jointly clamp the sealing strip of the tire outer wall profile.

[0007] Preferably, the snap-fit ​​portion includes a protrusion and a recess that snap-fit ​​and lock with the wheel hub.

[0008] Preferably, the open portion is provided with a groove for the protrusion to be inserted and a locking block that engages with the recess.

[0009] Preferably, a seal is provided between the inflator rod and the through hole of the hub to prevent air leakage.

[0010] Preferably, the hook and the snap-fit ​​part can also be separate structures, and the two can be connected in a detachable manner.

[0011] Preferably, the connection between the tire body and the wheel hub is further provided with a sealing ring embedded in the wheel hub, and the sealing ring and the O-ring form a double sealing structure.

[0012] The beneficial effects of this utility model are as follows: By setting an annular O-ring, the O-ring is tightly fitted with the hook of the tire bead seat and the sealing surface of the fixed part of the wheel hub. The elastic deformation of the O-ring fills the gap and forms a sealing structure. At the same time, the two sides of the hook abut against the outer circumference of the O-ring, forcing the O-ring to produce radial elastic deformation, further enhancing the sealing tightness, effectively preventing tire leakage, meeting the self-sealing requirements of tubeless wheels, ensuring the pressure stability of the air chamber inside the wheel, improving driving safety and stability, reducing the manufacturing and maintenance costs of inner tubes, and having good economic benefits.

[0013] The protrusion of the snap-fit ​​part is inserted into the groove of the wheel hub, and the concave part is engaged with the snap-fit ​​block to form an interlocking structure, which restricts the axial and circumferential displacement of the tire bead relative to the wheel hub; at the same time, the arc-shaped structure of the fixing part and the hook part together clamps the outer wall of the tire body to form a mechanical clamping force, ensuring that the components do not loosen under high-speed driving or vibration conditions, thus improving the overall structural reliability.

[0014] By setting up the seal, the seal between the inflator rod and the wheel hub is ensured, preventing gas from leaking from the connection between the inflator rod and the wheel hub, ensuring the smooth inflation process of the wheel and the sealing of the internal air chamber after inflation;

[0015] By separating the hook and snap-fit ​​parts of the tire bead seat, it is easier for workers to quickly and accurately install the parts into the corresponding positions, especially for large wheels or complex assembly environments, reducing the difficulty of installation. Compared with the integral structure, the split connector is designed to allow multiple complex connection parts to be aligned at once, which can be carried out in a distributed manner, greatly improving assembly efficiency and reducing manual operation time and costs. Attached Figure Description

[0016] Figure 1 This is an overall cross-sectional view of Embodiment 1 of this utility model;

[0017] Figure 2 This is a cross-sectional view of the wheel hub according to Embodiment 1 of this utility model;

[0018] Figure 3 This is a cross-sectional view of the tire bead seat according to Embodiment 1 of this utility model;

[0019] Figure 4 This is a partial enlarged view of Embodiment 1 of this utility model;

[0020] Figure 5 This is an overall cross-sectional view of Embodiment 2 of this utility model;

[0021] Figure 6 This is a partial enlargement of Embodiment 2 of this utility model.

[0022] Legend: 1. Tire carcass; 11. O-ring; 12. Sealing ring; 2. Wheel hub; 21. Fixing part; 22. Opening part; 221. Groove; 222. Locking block; 3. Bead seat; 31. Hook; 32. Snap-fit ​​part; 321. Protrusion; 322. Recess; 4. Inflation rod; 41. Seal. Detailed Implementation

[0023] The following description, in conjunction with the accompanying drawings, further illustrates the two-piece tubeless self-sealing wheel of this utility model.

[0024] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Participation Figure 1-6As shown, this embodiment of a two-piece tubeless self-sealing wheel is characterized by: including a tubeless inflatable tire body 1, a hub 2 adapted to and connected to the tire body 1, a bead seat 3 disposed at the connection between the tire body 1 and the hub 2 on one side, and an inflation rod 4 penetrating the hub 2 and extending one end into the air cavity inside the tire body 1, with the other end used for connecting an external inflation device; the bead portion of the tire body 1 is integrally formed with a plurality of O-rings 11 arranged in a ring and sealed to the bead seat 3 and the hub 2; the bead seat 3 includes a hook portion 31 that fits against the outer wall of the tire body 1 and a snap-fit ​​portion 32 that engages with the hub 2 to limit the displacement of the bead seat 3 relative to the hub 2; one side of the hub 2 is provided with a fixing portion 21 that fits against the outer wall of the tire body 1, and the other side is provided with an opening portion 22 for installing the bead seat 3; the tire body 1. High-elasticity material is used, and the tire is vulcanized in a mold. The bead portion is integrally vulcanized to form an annularly distributed O-ring 11. The wheel hub 2 is made of alloy die casting. The tire body 1 is inserted into the wheel hub 2 through the open part 22. The outer wall of one side of the tire body 1 fits against the fixed part 21 of the wheel hub 2. The hook part 31 of the bead seat 3 is inserted along the outer wall of the other side of the tire body 1, so that the hook part 31 fits against the outer wall of the tire body 1. The snap-fit ​​part 32 of the bead seat 3 snaps and locks with the open part 22 of the wheel hub 2, so that the tire body 1 is stably connected by the open part 22 of the wheel hub 2 and the bead seat 3. The O-ring 11 is elastically connected to both sides of the fixed part 21 and the hook part 31 of the wheel hub 2. When gas enters through the inflation rod 4, the tire body 1 expands to both sides and abuts against the fixed part 21 of the wheel hub 2 and the hook part 31 of the bead seat 3.

[0027] With the setting of the annular O-ring 11, the O-ring 11 is tightly fitted with the sealing surface of the hook 31 of the tire bead seat 3 and the fixing part 21 of the wheel hub 2. The elastic deformation of the O-ring 11 fills the gap and forms a sealing structure. At the same time, the two sides of the hook 31 abut against the outer periphery of the O-ring 11, forcing the O-ring 11 to produce radial elastic deformation, further enhancing the sealing tightness, effectively preventing the tire body 1 from leaking air, meeting the self-sealing requirements of tubeless wheels, ensuring the pressure stability of the air chamber inside the wheel, improving driving safety and stability, reducing the manufacturing and maintenance costs of inner tubes, and having good economic benefits.

[0028] Participation Figure 4 As shown, the two side edges of the hook portion 31 abut against the outer periphery of the O-ring 11, forcing the O-ring 11 to undergo radial elastic deformation to enhance the seal; this further improves the sealing effect of the O-ring 11 and effectively prevents gas leakage.

[0029] Participation Figure 1-6As shown, the fixing part 21 and the hook part 31 of the bead seat 3 are both arc-shaped structures. Their inner surfaces are closely fitted to the outer wall of the tire body 1 to jointly clamp the outer wall profile sealing strip of the tire body 1. The fixing part 21 is closely fitted to the outer wall of the tire body 1 and works with the hook part 31 of the bead seat 3 to jointly clamp the outer wall profile sealing strip of the tire body 1, forming a good sealing structure. The arc-shaped structure design can better fit the contour of the outer wall of the tire body 1, making the contact between the fixing part 21 and the hook part 31 and the tire body 1 tighter, thereby improving the sealing performance.

[0030] Participation Figure 1-6 As shown, the locking part 32 includes a protrusion 321 and a recess 322 that are locked to the wheel hub 2; the open part 22 is provided with a groove 221 for the protrusion 321 to be inserted into and a locking block 222 that engages with the recess 322; by the protrusion 321 of the locking part 32 being inserted into the groove 221 of the wheel hub 2 and the recess 322 engaging with the locking block 222, an interlocking structure is formed, which restricts the axial and circumferential displacement of the tire bead seat 3 relative to the wheel hub 2; at the same time, the arc-shaped structure of the fixing part 21 and the hook part 31 together clamps the outer wall of the tire body 1, forming a mechanical clamping force to ensure that the components do not loosen under high-speed driving or vibration conditions, thereby improving the overall structural reliability.

[0031] Participation Figure 1-2 As shown in Figure 5, a sealing element 41 is provided between the inflator rod 4 and the through hole of the wheel hub 2 to prevent air leakage. The sealing element 41 ensures the seal between the inflator rod 4 and the wheel hub 2, prevents gas from leaking from the connection between the inflator rod 4 and the wheel hub 2, and ensures the smooth progress of the wheel inflation process and the sealing of the internal air cavity after inflation. Example 1:

[0032] When the hook portion 31 and the snap-fit ​​portion 32 of the bead seat 3 are integral structures, they are made of metal or high-strength engineering plastic and are formed by casting or injection molding; suitable for use on vehicles with smaller tires;

[0033] During installation, the tire body 1 is inserted onto the wheel hub 2 through the open portion 22, so that the outer wall of one side of the tire body 1 fits against the fixed portion 21 of the wheel hub 2; the hook portion 31 of the bead seat 3 is inserted along the outer wall of the other side of the tire body 1, so that the two sides of the hook portion 31 fit against the outer wall of the tire body 1; at the same time, the protrusion 321 of the snap-fit ​​portion 32 of the bead seat 3 is inserted into the groove 221 of the open portion 22 of the wheel hub 2, and the groove 322 engages with the snap-fit ​​block 222 of the open portion 22, ensuring that the bead seat 3 is securely connected to the wheel hub 2; at this time, the wheel... The fixing part 21 of the hub 2 and the hook part 31 of the bead seat 3 together clamp the outer wall of the tire body 1 to form a sealing strip, which constitutes a good sealing and fixing structure. The O-ring 11 is elastically connected to both sides of the fixing part 21 and the hook part 31 of the hub 2. The inflation rod 4 is passed through the through hole of the hub 2, and a sealing element 41 is installed between the inflation rod 4 and the through hole of the hub 2 to ensure that the sealing element 41 is installed tightly to prevent air leakage. One end of the inflation rod 4 extends into the air cavity inside the tire body 1, and the other end protrudes from the hub 2 for external inflation equipment.

[0034] When gas enters the inner cavity of the tire body 1 through the inflation rod 4, the tire body 1 expands to both sides. The fixing part 21 of the hub 2 and the hook part 31 of the bead seat 3 abut against the tire body 1, forcing the O-rings on both sides of the tire body 1 to squeeze against the fixing part 21 and the hook part 31, thereby firmly sealing the gas in the cavity of the tire body 1.

[0035] When the tire body 1 needs maintenance or replacement, the air in the tire body 1 is released through the inflation rod 4. After the air is released, the tire body 1 is manually squeezed toward the fixing part 21 of the wheel hub 2. Then the tire bead seat 3 is moved toward the fixing part 21. The tire bead seat 3 is then removed from the wheel hub 2 using tools. The tire body 1 can then be removed from the wheel hub 2 for maintenance or replacement. Example 2:

[0036] When the hook part 31 and the snap-fit ​​part 32 of the bead seat 3 are separate structures, the two can be connected by bolts; the connection part between the tire body 1 and the wheel hub 2 is also provided with a sealing ring 12 embedded in the wheel hub 2, and the sealing ring 12 and the O-ring 11 form a double sealing structure.

[0037] During installation, first, insert the sealing ring 12 into the pre-reserved mounting groove at the connection between the wheel hub 2 and the tire body 1, ensuring that the sealing ring 12 is installed in place and accurately positioned; then, slide the tire body 1 onto the wheel hub 2 through the open portion 22, so that the outer wall of one side of the tire body 1 fits against the fixing portion 21 of the wheel hub 2; insert the hook portion 31 of the bead seat 3 along the outer wall of the other side of the tire body 1, so that the two sides of the hook portion 31 fit against the outer wall of the tire body 1, and at the same time, insert the protrusion 321 of the snap-fit ​​portion 32 of the bead seat 3 into the groove 221 of the open portion 22 of the wheel hub 2, and the groove 322 and the snap-fit ​​block 2 of the open portion 22... 22. Engage to ensure a secure connection between the bead seat 3 and the wheel hub 2. At this time, the fixing part 21 of the wheel hub 2 and the hook part 31 of the bead seat 3 together clamp the outer wall of the tire body 1 to form a sealing strip, constituting a good sealing and fixing structure. The O-ring 11 is elastically connected to both sides of the fixing part 21 and the hook part 31 of the wheel hub 2. Pass the inflation rod 4 through the through hole of the wheel hub 2, and install the sealing element 41 between the inflation rod 4 and the through hole of the wheel hub 2 to ensure that the sealing element 41 is installed tightly to prevent air leakage. One end of the inflation rod 4 extends into the air cavity inside the tire body 1, and the other end protrudes from the wheel hub 2 for connecting to an external inflation device.

[0038] When gas enters the inner cavity of the tire body 1 through the inflation rod 4, the tire body 1 expands to both sides. The fixing part 21 of the hub 2 and the hook part 31 of the bead seat 3 abut against the tire body 1, forcing the O-rings on both sides of the tire body 1 to squeeze against the fixing part 21 and the hook part 31, thereby firmly sealing the gas in the cavity of the tire body 1.

[0039] When the tire body 1 needs maintenance or replacement, the air in the tire body 1 is released through the inflation rod 4. After the air is released, the tire body 1 is manually pressed against the fixing part 21 of the wheel hub 2. The connecting bolts on the snap-fit ​​part 32 and the hook part 31 are removed with a tool. Then the hook part 31 of the tire bead seat 3 is moved towards the fixing part 21 so that the snap-fit ​​part 32 can be removed from the wheel hub 2. After removing the snap-fit ​​part 32, the hook part 31 and the tire body 1 are removed from the wheel hub 2 in sequence. Then the tire body 1 is maintained or replaced.

[0040] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A two-piece tubeless self-sealing wheel, characterized in that: The tire includes a tubeless inflatable tire body (1), a wheel hub (2) adapted to and connected to the tire body (1), a bead seat (3) located at the connection between the tire body (1) and the wheel hub (2) on one side, and an inflation rod (4) that passes through the wheel hub (2) and extends one end into the air cavity inside the tire body (1) and the other end is used to connect to an external inflation device; the bead portion of the tire body (1) is integrally formed with several O-rings (11) that are sealed and connected to the bead seat (3) and the wheel hub (2) in a ring distribution; the bead seat (3) includes a hook portion (31) that fits against the outer wall of the tire body (1) and a snap-fit ​​portion (32) that snaps against the wheel hub (2) to limit the displacement of the bead seat (3) relative to the wheel hub (2); the wheel hub (2) has a fixing portion (21) that fits against the outer wall of the tire body (1) on one side and an opening portion (22) for installing the bead seat (3) on the other side.

2. The two-piece tubeless self-sealing wheel according to claim 1, characterized in that: The two sides of the hook (31) abut against the outer periphery of the O-ring (11), forcing the O-ring (11) to produce radial elastic deformation to enhance the seal.

3. A two-piece tubeless self-sealing wheel according to claim 2, characterized in that: The fixing part (21) and the hook part (31) of the bead seat (3) are both arc-shaped structures. Their inner surfaces are closely attached to the outer wall of the tire body (1) to jointly clamp the outer wall profile sealing strip of the tire body (1).

4. A two-piece tubeless self-sealing wheel according to claim 1, characterized in that: The locking part (32) includes a protrusion (321) and a recess (322) that engage and lock with the hub (2).

5. A two-piece tubeless self-sealing wheel according to claim 4, characterized in that: The open portion (22) is provided with a groove (221) for inserting the protrusion (321) and a locking block (222) for engaging with the recess (322).

6. A two-piece tubeless self-sealing wheel according to claim 1, characterized in that: A sealing element (41) is provided between the inflatable rod (4) and the through hole of the hub (2) to prevent air leakage.

7. A two-piece tubeless self-sealing wheel according to claim 1, characterized in that: The hook (31) and the snap-fit ​​(32) can also be separate structures, and the two can be connected in a detachable manner.

8. A two-piece tubeless self-sealing wheel according to claim 1, characterized in that: The connection between the tire body (1) and the wheel hub (2) is also provided with a sealing ring (12) embedded in the wheel hub (2), and the sealing ring (12) and the O-ring (11) form a double sealing structure.

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