A rubber expander for a vehicle

By designing a rubber flaring tool for automobiles with supporting, adjusting, and auxiliary mechanisms, automatic flaring and inner surface protrusion are achieved, solving the problems of cumbersome manual operation and poor stability in existing technologies, and improving repair efficiency and effectiveness.

CN224375248UActive Publication Date: 2026-06-19ANHUI NINGGUO JIABEILI RUBBER & PLASTIC PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI NINGGUO JIABEILI RUBBER & PLASTIC PROD CO LTD
Filing Date
2025-07-18
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing automotive rubber flaring tools require manual operation, which is cumbersome and results in poor tire stability, making them prone to slippage and affecting repair work.

Method used

A rubber flaring device including a support mechanism, an adjustment mechanism, and an auxiliary mechanism was designed. It uses a servo motor to drive a bidirectional threaded rod and an electric telescopic rod to achieve automatic flaring. Combined with a small cylinder to drive a protrusion to press the inner tread of the tire, it ensures that the tire is fixed and the inner tread is exposed.

Benefits of technology

It enables automatic tire flaring and easy highlighting of the inner surface, improving operational efficiency and tire stability, and ensuring the convenience and effectiveness of repairs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of tire expander technology, and more particularly to a rubber tire expander for automobiles. It includes a support mechanism serving as the main body of the device. The support mechanism includes a base plate and an adjustment mechanism for automatically expanding the tire opening. An auxiliary mechanism for easily pressing the inner tread of the tire is also provided on the support mechanism. The adjustment mechanism includes a bidirectional threaded rod and a guide rod. Moving plates are threadedly connected to both threaded sections of the bidirectional threaded rod. This utility model, by setting an adjustment mechanism, enables the device to automatically fix and expand the tire opening. The tire is placed between two fixed posts, and two electric telescopic rods drive two fixed plates to move, clamping and fixing the inner and outer sides of the tire with the two fixed plates and two connecting plates. A servo motor drives the bidirectional threaded rod to rotate, causing the two moving plates to slide on the guide rod, thereby completing the tire expansion, saving time and effort.
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Description

Technical Field

[0001] This utility model relates to the field of tire expander technology, specifically a rubber expander for automobiles. Background Technology

[0002] A tire spreader, also known as a tire widener, is primarily used for widening the tire opening, especially during tire repair. It helps to enlarge the tire's opening to facilitate repair work. Currently, most tire spreaders use a puller plate to pull the tire sidewall outwards, requiring manual operation. This is cumbersome, and the tire's stability is poor during the widening process, making it prone to slippage and disrupting normal operation. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a rubber tire flaring tool for automobiles, which has the advantages of automatically widening tires without the need for manual operation. This solves the problem that most existing technologies use a pull plate to pull the tire sidewall outward, which requires manual operation and is cumbersome.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A rubber flaring tool for automobiles includes a support mechanism serving as the main body of the device. The support mechanism includes a base plate and an adjustment mechanism for automatically flaring tires within the support mechanism. An auxiliary mechanism for easily pressing the inner tube tread is also provided on the support mechanism. The adjustment mechanism includes a bidirectional threaded rod and a guide rod. Moving plates are threadedly connected to both threaded sections of the bidirectional threaded rod. Connecting frames are fixedly connected to the tops of both moving plates. First clamping rods are fixedly connected to the tops of both connecting frames. Connecting plates are fixedly connected to the tops of both first clamping rods. Electric telescopic rods are fixedly connected to both connecting plates. Fixed plates are fixedly connected to the movable ends of both electric telescopic rods. Second clamping rods are fixedly connected to the bottoms of both fixed plates.

[0006] Preferably, the auxiliary mechanism includes a small cylinder mounted on the base plate, and the movable end of the small cylinder is equipped with a protrusion.

[0007] Preferably, the top of the base plate is fixedly connected to two support plates, the top of each of the two support plates is fixedly connected to a fixed column, and two crossbars are fixedly connected between the two support plates.

[0008] Preferably, the bidirectional threaded rod and the guide rod are located between the two crossbars, the bidirectional threaded rod is rotatably connected to the two crossbars, the guide rod is fixedly connected to the two crossbars, and a servo motor for driving the bidirectional threaded rod to rotate is installed on one side of the crossbars.

[0009] Preferably, the protrusion is composed of square blocks and arc-shaped blocks, and the top surface of the protrusion is an arc-shaped surface.

[0010] Preferably, the surfaces of the two first clamping rods, the two second clamping rods, and the fixing column are all provided with roller patterns.

[0011] By employing the above technical solution, this utility model provides a rubber flare for automobiles, which has at least the following beneficial effects:

[0012] 1. This utility model enables the device to automatically fix and widen the tire by setting an adjustment mechanism. The tire is placed between two fixed columns, and two fixed plates are moved by two electric telescopic rods, so that the two fixed plates and two connecting plates clamp and fix the inner and outer sides of the tire. The servo motor drives the bidirectional threaded rod to rotate, so that the two moving plates slide on the guide rod, thereby completing the widening of the tire, saving time and effort.

[0013] 2. This utility model uses an auxiliary mechanism to push out the inner surface of the tire. When the worker needs to repair the inner surface of the tire, a small cylinder drives the protrusion to move upward. Since the tire is tangent to the two fixed posts, rotating the tire will make the inner surface of the tire at the corresponding position protrude, which makes it easier for the worker to repair the damaged area and ensures the repair effect of the device. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the support mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model;

[0018] Figure 4 This is an exploded view of the auxiliary mechanism of this utility model.

[0019] Figure label:

[0020] 1. Support mechanism; 101. Base plate; 102. Support plate; 103. Fixed column; 104. Crossbar; 2. Adjustment mechanism; 201. Two-way threaded rod; 202. Guide rod; 203. Moving plate; 204. Connecting frame; 205. First clamping rod; 206. Second clamping rod; 207. Connecting plate; 208. Fixed plate; 209. Electric telescopic rod; 3. Auxiliary mechanism; 301. Small cylinder; 302. Protrusion. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In practice, most tire expanders used in the prior art rely on a pull plate to pull the tire sidewall outward, which requires manual operation. This is cumbersome, and the tire is not stable during the expansion process, making it prone to slippage and affecting normal operation. The following describes some embodiments of the present invention with reference to the accompanying drawings, providing a rubber expander for automobiles.

[0023] Example 1:

[0024] In order to automatically widen the tire opening, combined with Figures 1-4 As shown, a rubber flaring tool for automobiles is proposed. A support mechanism 1 is set as the main body of the device. An adjustment mechanism 2 is set inside the support mechanism 1. The adjustment mechanism 2 is used to automatically flare the tire. An auxiliary mechanism 3 is set on the support mechanism 1. The auxiliary mechanism 3 is used to easily press the inner tread of the tire.

[0025] To facilitate easy tire flaring, an adjustment mechanism 2 is proposed, mainly comprising a bidirectional threaded rod 201 and a guide rod 202. The bidirectional threaded rod 201 and guide rod 202 are located between two crossbars 104. The bidirectional threaded rod 201 is rotatably connected to the two crossbars 104, while the guide rod 202 is fixedly connected to the two crossbars 104. A servo motor for driving the bidirectional threaded rod 201 is mounted on one side of each crossbar 104. Moving plates 203 are threadedly connected to both threaded sections of the bidirectional threaded rod 201. Connecting brackets 204 are fixedly connected to the tops of both moving plates 203. First clamping rods 205 are fixedly connected to the tops of both connecting brackets 204. Connecting plates 207 are fixedly connected to the tops of both first clamping rods 205. Electric telescopic rods 209 are fixedly connected to both connecting plates 207. Fixed plates 208 are fixedly connected to the movable ends of both electric telescopic rods 209. Second clamping rods 206 are fixedly connected to the bottom of both fixed plates 208. The positions of the bidirectional threaded rod 201 and the guide rod 202 are easily fixed by two crossbars 104. The tire is placed between two fixed posts 103. The two electric telescopic rods 209 drive the two fixed plates 208 to move, so that the two fixed plates 208 and the two connecting plates 207 clamp and fix the inner and outer sides of the tire. The bidirectional threaded rod 201 is rotated by a servo motor, so that the two moving plates 203 slide on the guide rod 202, thereby completing the flaring of the tire. This saves time and effort and ensures the fixing effect of the tire.

[0026] Example 2:

[0027] Based on Embodiment 1, the technical solution proposed in Embodiment 1 is used to solve the problem that in the actual use of the prior art, most tire expanders use a pull plate to pull the sidewall of the tire outward, which requires manual operation and is cumbersome. However, when the tire needs to be repaired, the inner tread of the tire should be made easy to highlight in order to facilitate the repair work.

[0028] To facilitate the repair of the inner tube tread by the staff, combined with Figure 1 and Figure 2 as well as Figure 4 As shown, an auxiliary mechanism 3 is proposed. A small cylinder 301 is installed on the base plate 101. A protrusion 302 is installed on the movable end of the small cylinder 301. The protrusion 302 is composed of square blocks and arc-shaped blocks. The top surface of the protrusion 302 is an arc-shaped surface. The small cylinder 301 drives the protrusion 302 to be adjusted. When the worker needs to repair the inner surface of the tire, the small cylinder 301 drives the protrusion 302 to move upward. Since the tire is tangent to the two fixed columns 103, the inner surface of the tire at the corresponding position can be made to protrude by rotating the tire, which makes it easier for the worker to repair the damaged area and ensures the repair effect of the device.

[0029] To ensure stable tire fixation, a support mechanism 1 is proposed. A base plate 101 is provided, and two support plates 102 are fixedly connected to the top of the base plate 101. Each support plate 102 is fixedly connected to a fixing column 103. Two crossbars 104 are fixedly connected between the two support plates 102. The base plate 101 effectively fixes the two support plates 102, and the two support plates 102 fix the fixing columns 103. The two fixing columns 103 ensure that the tire can be stably fixed, thus ensuring the stability of the tire flaring process.

[0030] The surfaces of the two first clamping rods 205, the two second clamping rods 206, and the fixing post 103 are all provided with roller patterns, which improves the friction between the first clamping rods 205, the second clamping rods 206, and the fixing post 103 and the tire, thus ensuring the tire's fixing effect.

[0031] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rubber flaring tool for automobiles, comprising a support mechanism (1) serving as the main body of the device, said support mechanism (1) including a base plate (101), characterized in that: The support mechanism (1) is provided with an adjustment mechanism (2) for automatically widening the tire opening, and the support mechanism (1) is provided with an auxiliary mechanism (3) for easily pressing the inner tire tread. The adjustment mechanism (2) includes a bidirectional threaded rod (201) and a guide rod (202). The two threaded sections of the bidirectional threaded rod (201) are threaded with movable plates (203). The tops of the two movable plates (203) are fixedly connected with connecting frames (204). The tops of the two connecting frames (204) are fixedly connected with first clamping rods (205). The tops of the two first clamping rods (205) are fixedly connected with connecting plates (207). The two connecting plates (207) are fixedly connected with electric telescopic rods (209). The movable ends of the two electric telescopic rods (209) are fixedly connected with fixed plates (208). The bottoms of the two fixed plates (208) are fixedly connected with second clamping rods (206).

2. The rubber flare for automobiles according to claim 1, characterized in that: The auxiliary mechanism (3) includes a small cylinder (301) mounted on a base plate (101), and a protrusion (302) is mounted on the movable end of the small cylinder (301).

3. The rubber flaring tool for automobiles according to claim 2, characterized in that: The top of the base plate (101) is fixedly connected to two support plates (102), and the top of each of the two support plates (102) is fixedly connected to a fixed column (103). Two crossbars (104) are fixedly connected between the two support plates (102).

4. The rubber flaring tool for automobiles according to claim 3, characterized in that: The bidirectional threaded rod (201) and guide rod (202) are located between two crossbars (104). The bidirectional threaded rod (201) is rotatably connected to the two crossbars (104), and the guide rod (202) is fixedly connected to the two crossbars (104). A servo motor for driving the bidirectional threaded rod (201) to rotate is installed on one side of the crossbar (104).

5. A rubber flaring tool for automobiles according to claim 2, characterized in that: The protrusion (302) is composed of square blocks and arc-shaped blocks, and the top surface of the protrusion (302) is an arc-shaped surface.

6. The rubber flaring tool for automobiles according to claim 1, characterized in that: The surfaces of the two first clamping rods (205), the two second clamping rods (206), and the fixing post (103) are all provided with roller patterns.