Split inner tube

CN224644557UActive Publication Date: 2026-08-18QINGDAO RADNOR TECH CO LTD
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Patent Information

Application Number
CN202522299569.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-30
Publication Date
2026-08-18
Estimated Expiration
2035-10-30

AI Technical Summary

Technical Problem

[0004]针对现有技术中,现有的实心胎多为整体式结构,当胎体局部出现磨损、裂纹、破损等问题时,即使仅某一区域损坏,也需将整个轮胎进行更换,造成材料的大量浪费,增加了用户的使用成本,给用户的使用和维护带来诸多不便的技术问题,本实用新型提供一种分体式内胎

Benefits of technology

本实用新型通过采用两个半圆形胎体组成实心内胎,通过安装杆与安装槽的配合实现分体式设计,配合连接组件可快速完成两个胎体的连接与拆分,解决了现有的实心胎多为整体式结构,当胎体局部出现磨损、裂纹、破损等问题时,即使仅某一区域损坏,也需将整个轮胎进行更换,造成材料的大量浪费,增加了用户的使用成本,给用户的使用和维护带来诸多不便的问题。

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Abstract

The utility model relates to a kind of split inner tube, including solid inner tube, solid inner tube includes two carcass, two carcass are semicircular, the upper and lower ends of one carcass are fixedly installed with mounting rod, the upper and lower sides of another carcass are all set with the installation slot that is in accord with mounting rod, the inside of two mounting rods is all installed with the connecting assembly that can be quickly connected to two carcass, connecting assembly includes two clamping rods and the clamping slot that is set in the inner wall two sides of installation slot and is in accord with clamping rod.The utility model is by using two semicircular carcass to form solid inner tube, the cooperation of mounting rod and installation slot realizes split design, and the connection and split of two carcass can be quickly completed by cooperating connecting assembly, solve the problem that the existing solid tire is mostly integral structure, when local wear and tear, crack, damage and other problems appear in carcass, entire tire needs to be replaced, cause the problem of large amount of waste of material, increase the use cost of user.
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Description

Technical Field

[0001] This utility model relates to the field of tire technology, and in particular to a split inner tube. Background Technology

[0002] In the field of short-distance travel tools such as bicycles, electric bicycles, and small mobility scooters, inner tubes are the core components for maintaining tire pressure and ensuring riding comfort. Their performance and ease of use directly affect the user's travel experience. Solid tires are widely used due to their advantages such as not needing to be inflated, being puncture-resistant, and having low maintenance costs.

[0003] Most existing solid tires have a one-piece structure. When problems such as wear, cracks, or damage occur in parts of the tire body, even if only a certain area is damaged, the entire tire needs to be replaced, resulting in a large waste of materials, increasing the user's operating costs, and causing many inconveniences for the user's use and maintenance. Utility Model Content

[0004] In view of the existing technology, most solid tires are integral structures. When the tire body is worn, cracked, or damaged, even if only a certain area is damaged, the entire tire needs to be replaced, resulting in a large waste of materials, increasing the user's operating costs, and causing many inconveniences for the user's use and maintenance. This utility model provides a split inner tube.

[0005] The technical solution adopted by this utility model is: a split inner tube, including a solid inner tube, the solid inner tube including two tire bodies, both of which are semi-circular, one tire body having a mounting rod fixedly installed at both the upper and lower ends, and the other tire body having mounting grooves on both the upper and lower sides that fit with the mounting rods, and both mounting rods having a connecting component installed inside to quickly connect the two tire bodies, the connecting component including two snap-fit ​​rods and snap-fit ​​grooves on both sides of the inner wall of the mounting grooves that fit with the snap-fit ​​rods, the solid inner tube is composed of two semi-circular tire bodies, and the split design is achieved by the cooperation of the mounting rods and the mounting grooves, and the connection and separation of the two tire bodies can be quickly completed with the help of the connecting component.

[0006] Furthermore, a first bevel gear is installed inside the mounting rod, and a handle is installed at the bottom of the mounting rod. The handle is fixedly connected to the bottom of the first bevel gear. A second bevel gear meshes with the surface of the first bevel gear. A threaded rod is fixedly installed on one side of the second bevel gear. A moving rod is threadedly connected to the surface of the threaded rod. A push rod is fixedly installed on one side of each moving rod. Two symmetrical sliding plates are also slidably connected inside the mounting rod. Two locking rods are fixedly installed on one side of the two sliding plates, and the two locking rods pass through one side surface of the mounting rod and are slidably connected to the mounting rod. This converts the rotational movement of the handle into the lateral extension and retraction movement of the locking rod, achieving precise engagement or disengagement of the locking rod and the locking slot.

[0007] Furthermore, the surfaces of both sliding plates near the push rod are sloped, and the side closest to the center of the mounting rod is narrower. This allows the horizontal thrust of the push rod to be efficiently converted into the lateral thrust of the sliding plate, which pushes the locking rod to extend quickly and engage in the slot. This also reduces energy loss during transmission and improves connection efficiency.

[0008] Furthermore, a limiting plate is fixedly installed on the surface of the movable rod, and limiting grooves are formed on both the upper and lower surfaces of the mounting rod. The limiting plate is slidably connected to the limiting grooves to restrict the movement direction of the movable rod, prevent it from deviating or rotating when the threaded rod rotates, and ensure that the push rod exerts a stable force on the sliding plate.

[0009] Furthermore, multiple first springs are fixedly installed on one side of each of the two sliding plates, and the other end of each of the multiple first springs is fixedly connected to one side of the inner wall of the mounting rod. The first springs are compressed when the locking rod extends, storing reset potential energy; when disassembling, the springs rebound and can automatically pull the sliding plates and locking rods back into the mounting rod. Furthermore, a connecting rod is slidably connected to one side of the handle surface, the connecting rod passing through the handle, and a limiting rod is fixedly installed at one end of the handle. Multiple limiting grooves arranged in a circumferential array and matching the limiting rod are formed on one side of the mounting rod. A second spring is fixedly installed on the surface of the limiting rod. The limiting rod, the second spring, and the circumferential array of limiting grooves cooperate to allow the limiting rod to be engaged in the corresponding limiting groove by the elastic force of the second spring after connection, restricting the reverse rotation of the handle and bevel gear, preventing the locking rod from accidentally retracting due to vibration or external force, and ensuring the long-term stability of the connection structure.

[0010] Furthermore, anti-slip pads are fixedly installed inside both mounting slots to increase the friction between the mounting rod and the mounting slot. This allows the mounting rod to be initially fixed even when the connecting components are not fully locked, preventing accidental slippage.

[0011] The beneficial effects of this utility model are: This invention uses two semi-circular tire bodies to form a solid inner tube. The design is split through the cooperation of the mounting rod and the mounting groove. With the help of the connecting component, the two tire bodies can be quickly connected and separated. This solves the problem that most existing solid tires are of integral structure. When the tire body has problems such as wear, cracks, or damage, even if only a certain area is damaged, the entire tire needs to be replaced, resulting in a lot of waste of materials, increasing the user's operating costs, and causing many inconveniences for the user's use and maintenance. Attached Figure Description

[0012] Figure 1 This is an overall drawing of the present invention; Figure 2 This is a front sectional view of the present invention; Figure 3 This is a front sectional view of the mounting rod of this utility model; Figure 4 This is a top sectional view of the mounting rod of this utility model; Figure 5 This is an enlarged structural view of point A of this utility model.

[0013] The markings in the diagram are as follows: 1. Solid inner tube; 101. Tire body; 2. Mounting rod; 3. Mounting groove; 4. Connecting assembly; 401. Snap-fit ​​rod; 402. Snap-fit ​​groove; 403. First bevel gear; 404. Handle; 405. Second bevel gear; 406. Threaded rod; 407. Moving rod; 408. Push rod; 409. Sliding plate; 410. Limiting plate; 411. Slide groove; 412. First spring; 413. Connecting rod; 414. Limiting rod; 415. Limiting groove; 416. Second spring; 5. Anti-slip pad. Detailed Implementation

[0014] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] The following is in conjunction with the appendix Figures 1-5 The present invention will be further described below.

[0017] In order to solve the problems existing in the background technology, this application proposes the following technical solution: a split inner tube.

[0018] The specific technical solution includes a solid inner tube 1, which comprises two tire bodies 101, both of which are semi-circular. Mounting rods 2 are fixedly installed at both the upper and lower ends of one tire body 101, and mounting grooves 3 that fit the mounting rods 2 are opened on both the upper and lower sides of the other tire body 101. Connecting components 4, capable of quickly connecting the two tire bodies 101, are installed inside the two mounting rods 2. The connecting components 4 include two snap-fit ​​rods 401 and snap-fit ​​grooves 402 opened on both sides of the inner wall of the mounting grooves 3 that fit the snap-fit ​​rods 401. The solid inner tube 1 is composed of two semi-circular tire bodies 101, and a split design is achieved through the cooperation of the mounting rods 2 and the mounting grooves 3. The connection and separation of the two tire bodies 101 can be quickly completed with the connecting components 4.

[0019] Reference Figures 1 to 4As shown, the connecting assembly 4 also includes a first bevel gear 403 installed inside the mounting rod 2 and a handle 404 installed at the bottom of the mounting rod 2. The handle 404 is fixedly connected to the bottom of the first bevel gear 403. A second bevel gear 405 meshes with the surface of the first bevel gear 403. A threaded rod 406 is fixedly installed on one side of the second bevel gear 405. A moving rod 407 is threadedly connected to the surface of the threaded rod 406. A push rod 408 is fixedly installed on one side of each moving rod 407. Two symmetrical sliding plates 409 are also slidably connected inside the mounting rod 2. Two locking rods 401 are fixedly installed on one side of the two sliding plates 409 respectively, and the two locking rods 401 pass through one side surface of the mounting rod 2 and are slidably connected to the mounting rod 2. The surfaces of the two sliding plates 409 of the connecting assembly 4 near the push rod 408 are both inclined, and the side near the center of the mounting rod 2 is narrower. The connecting assembly 4 also includes a limiting plate 4 fixedly installed on the surface of the moving rod 407. 10. Slide grooves 411 are provided on both the upper and lower surfaces of the mounting rod 2. The limiting plate 410 is slidably connected to the slide groove 411. Multiple first springs 412 are fixedly installed on one side of the two sliding plates 409 of the connecting assembly 4. The other end of the multiple first springs 412 is fixedly connected to one side of the inner wall of the mounting rod 2. When the handle 404 is turned, the first bevel gear 403 rotates. The first bevel gear 403 meshes with the second bevel gear 405, driving the threaded rod 406 to rotate synchronously. The moving rod 407 on the surface of the threaded rod 406 moves axially under the action of the thread. The limiting plate 410 on its surface slides along the slide groove 411 of the mounting rod 2 to ensure stable movement. The push rod 408 on one side of the moving rod 407 is pushed forward and contacts the inclined surface of the sliding plate 409, converting the horizontal thrust into the lateral thrust, pushing the sliding plate 409 to move to both sides, so that the locking rod 401 extends out from the mounting rod 2 and is embedded in the locking groove 402 on the inner wall of the mounting groove 3, completing the mechanical locking of the two tire bodies 101. At this time, the first spring 412 on one side of the sliding plate 409 is compressed, the handle 404 is rotated in the opposite direction, the threaded rod 406 drives the moving rod 407 and the push rod 408 to reset, the push rod 408 releases the pushing force on the sliding plate 409, the compressed first spring 412 rebounds, pulling the sliding plate 409 and the snap-fit ​​rod 401 back into the mounting rod 2, the snap-fit ​​rod 401 disengages from the snap-fit ​​groove 402, and the two tire bodies 101 can be separated, and the mounting rod 2 is pulled out from the mounting groove 3.

[0020] Reference Figure 1 and Figure 5As shown, the connecting assembly 4 also includes a connecting rod 413 slidably connected to one side of the handle 404. The connecting rod 413 passes through the handle 404. A limiting rod 414 is fixedly installed at one end of the handle 404. A plurality of limiting grooves 415 arranged in a circumferential array and fitting with the limiting rod 414 are opened on one side of the mounting rod 2. A second spring 416 is fixedly installed on the surface of the limiting rod 414. Pulling the connecting rod 413 causes the limiting rod 414 to overcome the elastic force of the second spring 416 and disengage from the limiting groove 415, releasing the rotation restriction on the handle 404. When the connecting rod 413 is released, the second spring 416 rebounds and pushes the limiting rod 414 into the limiting groove 415 on the surface of the mounting rod 2, restricting the reverse rotation of the handle 404 and the bevel gear, and ensuring a stable connection.

[0021] Reference Figure 1 and Figure 2 As shown, anti-slip pads 5 are fixedly installed inside both mounting slots 3. The anti-slip pads 5 are in close contact with the surface of the mounting rod 2, and the friction force initially restricts the sliding of the mounting rod 2, thus achieving pre-fixation.

[0022] To ensure that those skilled in the art can fully understand the technical solution, this application provides the following overall overview: The mounting rod 2 of one tire body 101 is aligned with the mounting groove 3 of the other tire body 101 and inserted. The anti-slip pad 5 in the mounting groove 3 is in close contact with the surface of the mounting rod 2, and the sliding of the mounting rod 2 is initially restricted by friction. The connecting rod 413 is pulled, so that the limiting rod 414 overcomes the elastic force of the second spring 416 and disengages from the limiting groove 415, releasing the rotation restriction on the handle 404. The handle 404 is rotated, which drives the first bevel gear 403 inside the mounting rod 2 to rotate. The first bevel gear 403 meshes with the second bevel gear 405, driving the threaded rod 406 to rotate synchronously. The moving rod 407 on the surface of the threaded rod 406 moves axially under the action of the thread. The push rod 408 on one side of the moving rod 407 is pushed forward with it. The inclined surface of the contact sliding plate 409 is narrower near the center, which converts the horizontal thrust into the lateral thrust, pushing the sliding plate 409 to move to both sides, so that the locking rod 401 extends out from the mounting rod 2 and is embedded in the locking groove 402 on the inner wall of the mounting groove 3, completing the mechanical locking of the two tire bodies 101. At this time, the first spring 412 on one side of the sliding plate 409 is compressed, storing reset potential energy, releasing the connecting rod 413, and the second spring 416 rebounds, pushing the limiting rod 414 into the limiting groove 415 on the surface of the mounting rod 2, restricting the handle 404 and the bevel gear to rotate in the opposite direction, ensuring stable connection. When separation is required, pull the connecting rod 413 to make the limiting rod 414 disengage from the limiting groove 415, releasing the locking restriction, and rotate the handle 404 in the opposite direction. The threaded rod 406 drives the moving rod 407 and the push rod 408 to reset. The push rod 408 releases the pushing force on the sliding plate 409, and the compressed first spring 412 rebounds, pulling the sliding plate 409 and the locking rod 401 back into the mounting rod 2. The locking rod 401 disengages from the locking groove 402, and the two tire bodies 101 can be separated.

[0023] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0024] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A split-type inner tube, characterized in that, The device includes a solid inner tube (1), which includes two tire bodies (101). Both tire bodies (101) are semi-circular. One tire body (101) has a mounting rod (2) fixedly installed at both the upper and lower ends. The other tire body (101) has mounting grooves (3) on both the upper and lower sides that fit with the mounting rods (2). The two mounting rods (2) are equipped with a connecting component (4) that can quickly connect the two tire bodies (101). The connecting component (4) includes two snap-fit ​​rods (401) and snap-fit ​​grooves (402) on both sides of the inner wall of the mounting groove (3) that fit with the snap-fit ​​rods (401).

2. A split-type inner tube according to claim 1, characterized in that, The connecting assembly (4) further includes a first bevel gear (403) installed inside the mounting rod (2) and a handle (404) installed at the bottom of the mounting rod (2). The handle (404) is fixedly connected to the bottom of the first bevel gear (403). A second bevel gear (405) meshes with the surface of the first bevel gear (403). A threaded rod (406) is fixedly installed on one side of the second bevel gear (405). A moving rod (407) is threadedly connected to the surface of the threaded rod (406). A push rod (408) is fixedly installed on one side of each moving rod (407). Two symmetrical sliding plates (409) are also slidably connected inside the mounting rod (2). Two locking rods (401) are fixedly installed on one side of the two sliding plates (409) respectively, and the two locking rods (401) pass through one side surface of the mounting rod (2) and are slidably connected to the mounting rod (2).

3. A split-type inner tube according to claim 2, characterized in that, The two sliding plates (409) of the connecting assembly (4) are both inclined on the side of the push rod (408), and are narrower on the side of the mounting rod (2) inside the center.

4. A split-type inner tube according to claim 3, characterized in that, The connecting assembly (4) also includes a limiting plate (410) fixedly installed on the surface of the moving rod (407). The upper and lower surfaces of the mounting rod (2) are provided with sliding grooves (411), and the limiting plate (410) is slidably connected to the sliding grooves (411).

5. A split-type inner tube according to claim 3, characterized in that, Multiple first springs (412) are fixedly installed on one side of each of the two sliding plates (409) of the connecting assembly (4), and the other end of each of the multiple first springs (412) is fixedly connected to one side of the inner wall of the mounting rod (2).

6. A split-type inner tube according to claim 2, characterized in that, The connecting assembly (4) further includes a connecting rod (413) slidably connected to one side of the handle (404). The connecting rod (413) passes through the handle (404). A limiting rod (414) is fixedly installed at one end of the handle (404). A plurality of limiting grooves (415) arranged in a circumferential array and matching the limiting rod (414) are opened on one side of the mounting rod (2). A second spring (416) is fixedly installed on the surface of the limiting rod (414).

7. A split-type inner tube according to claim 1, characterized in that, Anti-slip pads (5) are fixedly installed inside both of the mounting slots (3).