Anti-loosening device for supporting body in tire

Abstract

The utility model discloses an anti-loosening device for a supporting body in a tire, relates to the technical field of tire reinforcement, and solves the problems that the tail end of a bolt on the conventional supporting body is lack of necessary limiting design and is easy to reversely rotate after being vibrated for a long time, so that the bolt is loosened, the connection between the supporting body and a hub becomes infirm, and the service life of the supporting body is prolonged. The normal use effect and the stability of the supporting body are influenced. Comprising a supporting body and connecting and fixing bolts, and the two ends of the supporting body are connected into a whole through the connecting and fixing bolts; the anti-loosening structure comprises an R-shaped pin which is inserted into the end of the connecting and fixing bolt and is used for limiting the connecting and fixing bolt; according to the utility model, the rotation looseness of the tail end of the connecting and fixing bolt can be effectively limited, and the tightness and stability of connection can be kept even in a long-term vibration environment, so that the connection quality between the support body and the hub is obviously improved, and the reliable operation and durability of the support body are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of tire reinforcement, and in particular relates to an anti-loosening device for a tire inner support body. Background Art

[0002] Nowadays, in order to prevent the car from losing control or even overturning after a tire blowout, a safety device is installed on the vehicle's wheel hub steel rim. The purpose is to enable the auxiliary wheel to support the tire when the vehicle has a tire blowout, to avoid greater danger and accidents as much as possible, and to allow the vehicle to continue to travel for a certain distance. This safety device is also called tire internal support technology.

[0003] For example, the existing patent ZL200720094629.2 “Safety insurance device for automobile tire” and the patent ZL200620056260.1 “Safety insurance device for automobile tire” both disclose similar safety devices for automobile tires.

[0004] At present, when the support body is fixed to the wheel hub by bolts in the current technology, the bolt ends on the support body lack the necessary limit design, which makes it easy to reversely rotate after long-term vibration, thereby causing the bolts to loosen. This loosening phenomenon will make the connection between the support body and the wheel hub unstable, and ultimately affect the normal use effect and stability of the support body.

[0005] Therefore, based on the above problems, we designed an anti-loosening device for the inner support body of the tire. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a tire inner support body anti-loosening device, which solves the technical problem that the bolt ends on the existing support body lack the necessary limit design, and are prone to reverse rotation after long-term vibration, which leads to the problem of bolt loosening, causing the connection between the support body and the wheel hub to become unstable, affecting the normal use effect and stability of the support body.

[0007] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the utility model, a device for preventing a support body from loosening in a tire is provided, comprising a support body and connecting and fixing bolts, wherein two ends of the support body are connected as a whole by connecting and fixing bolts;

[0008] Also includes:

[0009] An anti-loosening structure, the anti-loosening structure comprising an R-shaped pin inserted at the end of the connecting fixing bolt for limiting the connection fixing bolt;

[0010] Wherein, the R-shaped pin is divided into a plug-in portion, a ring portion and a locking portion.

[0011] A further improvement lies in that the support body is divided into a pressure-bearing frame and a pressure-bearing ring arranged inside the port of the pressure-bearing frame, and mounting members located inside the port of the pressure-bearing frame are respectively arranged at both ends of the pressure-bearing ring.

[0012] A further improvement lies in that threaded holes are penetrated and arranged at corresponding positions on each of the mounting members and the pressure-bearing frame.

[0013] A further improvement lies in that the clamping and limiting part is V-shaped, and there is a gap between the end point and the insertion part.

[0014] A further improvement lies in that perforations are symmetrically arranged at one end of the connecting and fixing bolt.

[0015] A further improvement lies in that notches for installing R-shaped pins are arranged on the mounting member, and a pair of notches are provided.

[0016] A further improvement lies in that jacks are formed at positions on the pressure-bearing ring opposite to each notch.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] By using the design of the anti-loosening structure, the present utility model can limit the position of the end of the connecting and fixing bolt, effectively restricting the rotational loosening of the end of the connecting and fixing bolt. Even in a long-term vibration environment, the tightness and stability of the connection can be maintained, thereby significantly improving the connection quality between the support body and the wheel hub, ensuring the reliable operation and long-term durability of the support body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a schematic diagram of the structure of one end of the support body of the present utility model;

[0021] Figure 3 is a schematic diagram of the structure of the connecting and fixing bolt of the present utility model;

[0022] Figure 4 is a schematic diagram of the anti-loosening structure of the present utility model.

[0023] Markings in the figure:

[0024] 1. Connecting and fixing bolt; 11. Perforation; 2. Support body; 21. Pressure-bearing frame; 211. Mounting member; 212. Notch; 213. Threaded hole; 22. Pressure-bearing ring; 221. Jack; 3. Anti-loosening structure; 31. R-shaped pin; 311. Insertion part; 312. Ring part; 313. Clamping and limiting part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present utility model.

[0026] As Figures 1 to 3 shown, a loosening prevention device for a tire inner support body includes a support body 2 and a connecting and fixing bolt 1. The support body 2 is divided into a pressure-bearing frame 21 and a pressure-bearing ring 22 arranged inside the port of the pressure-bearing frame 21. Installation parts 211 located inside the port of the pressure-bearing frame 21 are respectively arranged at both ends of the pressure-bearing ring 22;

[0027] Specifically, as a preferred implementation manner, the connecting and fixing bolt 1 is divided into a front section, a middle section and a rear end. The middle section is provided with an external thread, and both ends of the support body 2 are connected as a whole through the connecting and fixing bolt 1;

[0028] Specifically, as a preferred implementation manner, threaded holes 213 are respectively and correspondingly formed through each installation part 211 and the corresponding position on the pressure-bearing frame 21 for cooperating with the installation of the connecting and fixing bolt 1. After installation, the front section and the rear end of the connecting and fixing bolt 1 are respectively located inside the two installation parts 211;

[0029] As Figure 4 shown, during implementation, it includes: a loosening prevention structure 3. The loosening prevention structure 3 includes an R-shaped pin 31, and the R-shaped pin 31 is divided into a plugging part 311, a ring part 312 and a clamping part 313;

[0030] Specifically, as a preferred implementation manner, the clamping part 313 is V-shaped, and there is a gap between the end point and the plugging part 311;

[0031] As Figures 1 to 4 shown, in this embodiment, through holes 11 are symmetrically arranged at one end of the connecting and fixing bolt 1 for limiting the end of the connecting and fixing bolt 1 after the installation of the R-shaped pin 31 to prevent the connecting and fixing bolt 1 from rotating and loosening;

[0032] Notches 212 for installing the R-shaped pin 31 are also arranged on the installation parts 211. There are a pair of notches 212, and jacks 221 are formed at positions on the pressure-bearing ring 22 opposite to each notch 212.

[0033] In this embodiment, the actual sizes of the components in the application document are selected and installed before implementation according to the actual on-site requirements. Additionally, it should be noted that this application document only aims to improve the drawback that the end of the bolt on the existing support 2 lacks necessary limit design, is prone to reverse rotation after long-term vibration, which may lead to bolt loosening, and the connection between the support 2 and the wheel hub becomes loose, affecting the normal use effect and stability of the support 2. It does not involve other aspects. The working principle of the anti-loosening device for a tire inner support is introduced as follows:

[0034] During the implementation of this new type, on-site personnel precisely sleeved the support 2 in the middle of the wheel hub, and then used the connecting and fixing bolt 1 to penetrate the mounting parts 211 at both ends of the support 2, and drove the connecting and fixing bolt 1 to rotate by means of its driving force, so that the two ends of the support 2 approached each other and closely fit in the wheel hub to achieve stable installation.

[0035] Then, by operating the R-shaped pin 31, that is, separating the annular part 312 from the limiting part 313, a gap is generated between the limiting part 313 and the inserting part 311. Subsequently, the inserting part 311 is precisely inserted into the notch 212 of the mounting part 211 and further inserted into the through hole 11 at the end of the connecting and fixing bolt 1 until its tip firmly embeds in the jack 221 of the pressure-bearing ring 22.

[0036] After this new type adopts the above design, by using the design of the anti-loosening structure 3, the end of the connecting and fixing bolt 1 can be limited, effectively restricting the rotational loosening of the end of the connecting and fixing bolt 1. Even in a long-term vibration environment, the tightness and stability of the connection can be maintained, thus significantly improving the connection quality between the support 2 and the wheel hub and ensuring the reliable operation and long-term durability of the support 2.

[0037] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present invention.

Claims

1. An anti-loosening device for a tire inner support body, comprising a support body (2) and a connecting and fixing bolt (1), and both ends of the support body (2) are connected as a whole through the connecting and fixing bolt (1); It is characterized in that It further comprises: An anti-loosening structure (3), and the anti-loosening structure (3) includes an R-shaped pin (31) inserted at the end of the connecting and fixing bolt (1) for limiting the connecting and fixing bolt (1); Wherein, the R-shaped pin (31) is divided into a plugging part (311), an annular part (312) and a clamping and limiting part (313).

2. The anti-loosening device for a tire inner support body according to claim 1, characterized in that, The support body (2) is divided into a pressure-bearing frame (21) and a pressure-bearing ring (22) arranged inside the port of the pressure-bearing frame (21), and installation parts (211) located inside the port of the pressure-bearing frame (21) are respectively arranged at both ends of the pressure-bearing ring (22).

3. The anti-loosening device for a tire inner support body according to claim 2, characterized in that, Threaded holes (213) are respectively and penetratingly arranged at each corresponding position of each installation part (211) and the pressure-bearing frame (21).

4. The anti-loosening device for a tire inner support according to claim 1, characterized in that, The clamping and limiting part (313) is V-shaped, and there is a gap between the end point and the plugging part (311).

5. The anti-loosening device for a tire inner support body according to claim 1, characterized in that, Perforations (11) are symmetrically arranged at one end of the connecting and fixing bolt (1).

6. The anti-loosening device for a tire inner support body according to claim 2, characterized in that, Notches (212) for installing the R-shaped pin (31) are arranged on the installation part (211), and a pair of notches (212) are provided.

7. The anti-loosening device for a tire inner support body according to claim 6, characterized in that, Jack holes (221) are formed at positions on the pressure-bearing ring (22) opposite to each notch (212).

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