Automobile accessory four-corner welding nut with internal locking structure

Abstract

The utility model relates to the related technical field of automobile accessories, in particular to an automobile accessory four-corner welding nut with an internal locking structure, which comprises a nut body, a base plate is fixedly connected to the inner side surface of the nut body, and a first spring is fixedly connected to the upper surface of the base plate. According to the automobile accessory four-corner welding nut with the internal locking structure, the nut body, a base plate, a first spring, a fixing ring, a supporting rod, a first clamping block, a fixing ball, a first clamping groove, a second clamping block, a fixing block, a third clamping block, a second clamping groove, a second spring and a clamping bolt are arranged, and the clamping bolt and the second spring are of a telescopic structure; the clamping bolt can flexibly move in the second clamping groove in a telescopic mode, rapid locking and unlocking are achieved, use convenience is enhanced, the size of the outer wall of the clamping bolt is matched with the size of the inner wall of the second clamping groove, stability and reliability of the clamping bolt in the locking process are guaranteed, and the nut is effectively prevented from loosening or falling off in the use process.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to an automobile parts four-corner welded nut with an internal locking structure. Background Technique

[0002] Automobile parts are each unit that constitutes an entire automobile and a kind of product serving the automobile. There are a wide variety of automobile parts. With the improvement of people's living standards, people's consumption of automobiles is increasing more and more, and the market for automobile parts has become larger and larger. In recent years, automobile parts manufacturing factories have also been developing rapidly. Welded nuts are commonly used in automobile parts for fixing operations. A welded nut is a nut suitable for welding outside the nut. Generally, it is made of weldable materials and is relatively thick and suitable for welding. Welding is equivalent to turning two separate parts into one whole. The metal is melted by high temperature and then mixed together and cooled. An alloy will be added in the middle. It is the action of molecular force inside. Generally, the strength is greater than that of the parent body. The experiment of welding parameters depends on the fusion size of the weld. Adjust the welding parameters according to the fusion size until the defects are eliminated. Of course, the quality of welding is related to the pre-welding treatment, such as cleaning ash, oil stains, etc. For the stable use of welded nuts, therefore, there is a particular need for an automobile parts four-corner welded nut with an internal locking structure.

[0003] However, for the existing four-corner welded nuts, during use, the internal locking structure is usually relatively simple and cannot meet the requirements of high strength and stability, resulting in easy loosening or falling off during use, thus affecting the safety and reliability of the entire automobile parts. Content of the Utility Model

[0004] The purpose of the utility model is to provide an automobile parts four-corner welded nut with an internal locking structure to solve the problem that the existing four-corner welded nuts, during use, have a relatively simple internal locking structure and cannot meet the requirements of high strength and stability, resulting in easy loosening or falling off during use, thus affecting the safety and reliability of the entire automobile parts as mentioned in the above background technique.

[0005] To achieve the above object, the present utility model provides the following technical solution: An auto parts four-corner welded nut with an internal locking structure, including a nut body, a backing plate is fixedly connected to the inner surface of the nut body, a first spring is fixedly connected to the upper surface of the backing plate, a fixing ring is fixedly connected to one end surface of the first spring, a support rod is sleeved and fixed on the inner surface of the first spring, a first clamping block is fixedly connected to the outer surface of the support rod, a fixing ball is arranged inside the nut body, a first clamping groove is formed on the inner surface of the nut body, a second clamping block is fixedly connected to the outer surface of the support rod, a fixing block is fixedly connected to the upper surface of the nut body, a third clamping block is fixedly connected to the upper surface of the fixing block, a second clamping groove is formed on one side surface of the fixing block, a second spring is arranged inside the second clamping groove, and a bolt is fixedly connected to one end surface of the second spring.

[0006] Preferably, one end surface of the first spring is fixedly connected to the backing plate, and the other end surface of the first spring is fixedly connected to the fixing ring.

[0007] Preferably, the outer surface of the fixing ball is fitted with the inner surface of the first clamping groove, and the inner surface of the first spring is closely attached to the outer surface of the support rod.

[0008] Preferably, the outer surface of the support rod is fixedly connected to the first clamping block, and the nut body is fixedly connected to the second clamping block.

[0009] Preferably, the second spring and the bolt form a telescopic structure, and the outer wall dimension of the bolt matches the inner wall dimension of the second clamping groove.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: For the auto parts four-corner welded nut with an internal locking structure, through the settings of the nut body, backing plate, first spring, fixing ring, support rod, first clamping block, fixing ball, first clamping groove, second clamping block, fixing block, third clamping block, second clamping groove, second spring, and bolt, with the telescopic structure of the bolt and the second spring, the bolt can flexibly telescopically move within the second clamping groove, achieving quick locking and unlocking, enhancing the convenience of use. The outer wall size of the bolt matches the inner wall size of the second clamping groove, ensuring the stability and reliability of the bolt during locking, effectively preventing the nut from loosening or falling off during use. In addition, the combined use of the first spring, fixing ring, support rod, first clamping block, fixing ball, first clamping groove, and second clamping block forms a multiple locking structure inside the nut, significantly improving the overall strength and stability of the nut. Therefore, this auto parts four-corner welded nut has better stability and safety, can meet the high requirements of auto parts, and solves the problem that the existing four-corner welded nuts usually have a relatively simple internal locking structure, cannot meet the requirements of high strength and stability, and are prone to loosening or falling off during use, thus affecting the safety and reliability of the entire auto parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic diagram of the overall external structure of the present utility model;

[0012] Figure 2 is a schematic diagram of the sectional structure of the present utility model;

[0013] Figure 3 is a schematic diagram of the structure of the cooperation between the second clamping groove and the bolt of the present utility model;

[0014] Figure 4 is of the present utility model Figure 2 and is a schematic diagram of the enlarged structure at position A.

[0015] In the figure: 1, nut body; 2, backing plate; 3, first spring; 4, fixing ring; 5, support rod; 6, first clamping block; 7, fixing ball; 8, first clamping groove; 9, second clamping block; 10, fixing block; 11, third clamping block; 12, second clamping groove; 13, second spring; 14, bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. 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 efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figures 1-4 Figures 1-4 , the present utility model provides a technical solution: an auto parts four-corner welding nut with an internal locking structure, including a nut body 1, a backing plate 2 is fixedly connected to the inner surface of the nut body 1, a first spring 3 is fixedly connected to the upper surface of the backing plate 2, a fixing ring 4 is fixedly connected to one end surface of the first spring 3, a support rod 5 is fixedly sleeved on the inner surface of the first spring 3, a first clamping block 6 is fixedly connected to the outer surface of the support rod 5, a fixing ball 7 is arranged inside the nut body 1, a first clamping groove 8 is opened on the inner surface of the nut body 1, a second clamping block 9 is fixedly connected to the outer surface of the support rod 5, a fixing block 10 is fixedly connected to the upper surface of the nut body 1, a third clamping block 11 is fixedly connected to the upper surface of the fixing block 10, a second clamping groove 12 is opened on one side surface of the fixing block 10, a second spring 13 is arranged inside the second clamping groove 12, a bolt 14 is fixedly connected to one end surface of the second spring 13. Through the settings of the nut body 1, the backing plate 2, the first spring 3, the fixing ring 4, the support rod 5, the first clamping block 6, the fixing ball 7, the first clamping groove 8, the second clamping block 9, the fixing block 10, the third clamping block 11, the second clamping groove 12, the second spring 13, and the bolt 14, when the nut body 1 is welded to the welded part, first the welded part contacts the backing plate 2, then the backing plate 2 compresses the first spring 3, so that the support rod 5 receives the thrust of the first spring 3, driving the first clamping block 6 and the second clamping block 9 to move in the first clamping groove 8 and the second clamping groove 12. At this time, the fixing ball 7 is under external pressure and moves into the first clamping groove 8, and then the fixing ball 7 protrudes from the first clamping groove 8, thereby realizing the locking effect, enhancing the stability of the nut, preventing it from loosening or falling off during use, and improving the safety and reliability of auto parts.

[0018] Furthermore, one end surface of the first spring 3 is fixedly connected to the backing plate 2, and the other end surface of the first spring 3 is fixedly connected to the fixing ring 4. Through the setting of the fixing ring 4, when the first spring 3 is under pressure, it can effectively push the support rod 5 to move, thereby realizing the locking function.

[0019] Furthermore, the outer surface of the fixing ball 7 is fitted with the inner surface of the first clamping groove 8, and the inner surface of the first spring 3 is closely attached to the outer surface of the support rod 5. Through the setting of the first clamping groove 8, a part of the fixing ball 7 protrudes and is stuck in the first clamping groove 8 to clamp the welded part, thereby further fixing the welded part.

[0020] Furthermore, the outer surface of the support rod 5 is fixedly connected to the first clamping block 6, and the nut body 1 is fixedly connected to the second clamping block 9. Through the setting of the support rod 5, the first clamping block 6 and the second clamping block 9 can move along with the movement of the support rod 5, thereby realizing the locking and unlocking functions.

[0021] Further, the second spring 13 and the bolt 14 form a telescopic structure. The outer wall size of the bolt 14 matches the inner wall size of the second slot 12. Through the arrangement of the bolt 14, it can move telescopically in the second slot 12 under the push of the second spring 13, thereby firmly fixing the welded part.

[0022] Working principle: First, place the auto parts four-corner welding nut on the part to be welded, so that the welded part contacts the backing plate 2. As the welded part gradually approaches, the backing plate 2 will be pressured and compress the first spring 3. The compression of the first spring 3 will push the fixed ring 4 and the support rod 5 to move inward. The movement of the support rod 5 will drive the first latch 6 and the second latch 9 to slide in the first slot 8 and the second slot 12 respectively. At this time, the fixed ball 7 will be squeezed by the support rod 5 and move towards the first slot 8. As the welded part continues to approach, the fixed ball 7 will partially protrude from the first slot 8 and latch onto the welded part, thus achieving preliminary fixation. Due to the oppression of the welded part on the bolt 14, the bolt 14 will then extend outward under the push of the second spring 13 and closely fit with the welded part, further enhancing the fixation effect.

[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile four-corner welding nut with an internal locking structure, comprising a nut body (1), characterized in that: The inner surface of the nut body (1) is fixedly connected with a pad (2), the upper surface of the pad (2) is fixedly connected with a first spring (3), one end surface of the first spring (3) is fixedly connected with a fixing ring (4), the inner surface of the first spring (3) is sleeved with a support rod (5), the outer surface of the support rod (5) is fixedly connected with a first clamping block (6), a fixing ball (7) is arranged inside the nut body (1), a first clamping groove (8) is opened on the inner surface of the nut body (1), the outer surface of the support rod (5) is fixedly connected with a second clamping block (9), the upper surface of the nut body (1) is fixedly connected with a fixing block (10), the upper surface of the fixing block (10) is fixedly connected with a third clamping block (11), a second clamping groove (12) is opened on one side surface of the fixing block (10), a second spring (13) is arranged inside the second clamping groove (12), and one end surface of the second spring (13) is fixedly connected with a clamping bolt (14).

2. The automobile four-corner welding nut with an internal locking structure according to claim 1, characterized in that: One end surface of the first spring (3) is fixedly connected to a pad (2), and the other end surface of the first spring (3) is fixedly connected to a fixing ring (4).

3. The automobile four-corner welding nut with an internal locking structure according to claim 1, characterized in that: The outer surface of the fixed ball (7) matches the inner surface of the first clamping groove (8), and the inner surface of the first spring (3) fits tightly with the outer surface of the support rod (5).

4. The automobile four-corner welding nut with an internal locking structure according to claim 1, characterized in that: The outer surface of the support rod (5) is fixedly connected to the first clamping block (6), and the nut body (1) is fixedly connected to the second clamping block (9).

5. The automobile four-corner welding nut with an internal locking structure according to claim 1, characterized in that: The second spring (13) and the latch bolt (14) form a telescopic structure, and the outer wall size of the latch bolt (14) matches the inner wall size of the second latch slot (12).

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