Multipurpose bolt assembly

Abstract

The utility model provides a multi-purpose bolt assembly, which relates to the technical field of mechanical connecting pieces and comprises a connecting screw rod, a screw rod, a bolt and a bolt, a through round hole is formed in the nut, threads are arranged on the lower portion of the surface of the inner end of the round hole, and the upper end of the connecting screw rod is in threaded connection with the interior of the round hole in the nut. According to the utility model, the sealing strip with the ring-shaped structure is arranged on the lower end face of the cover plate, and after the cover plate covers the nut, the sealing strip is extruded to fill a gap between the cover plate and the nut, so that a sealing effect is achieved, impurities such as dust and water can be effectively prevented from entering a connecting part, and the problems that the traditional bolt connection is poor in sealing performance and the sealing performance is poor are solved. The problems that dust, water and other impurities are difficult to prevent from entering a connecting part, and when the bolt is screwed repeatedly, the end corner of a nut at the top of the bolt is abraded, and the slipping phenomenon is prone to occurring are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical connecting piece technical field especially relates to a multipurpose bolt combination spare. BACKGROUND

[0002] In many industrial fields and various equipment, structure building and assembly process in daily life, bolt connection is a very common and basic connection mode, the traditional bolt assembly is usually constituted by simple screw rod and nut, although it can satisfy basic connection fixed demand, but with the increasingly diversification and refinement of function requirement of connecting part of modern industry and different application scene, it gradually exposes many limitations.

[0003] In summary, the existing bolt combination spare still has the following two deficiencies in use:

[0004] Firstly, in different use environment, the sealing requirement of connecting part is also different, like some outdoor electronic equipment box, precision instrument shell connection and other scenes which strictly require waterproof and dustproof, the traditional bolt connection is difficult to effectively prevent dust, moisture and other impurities from entering the connecting part, which may cause internal components to be damp, rusty or eroded by impurities;

[0005] Secondly, when the bolt is twisted, the wrench is used, and the end angle of the nut at the top of the bolt is worn when the wrench repeatedly twists the bolt, which is prone to slipping, and when there is a lack of professional tools such as wrench, it is difficult to disassemble the bolt, affecting work efficiency. INVENTION CONTENTS

[0006] The utility model relates to a multipurpose bolt combination spare, solve the traditional bolt connection poor sealing, it is very difficult to prevent dust, moisture and other impurities from entering the connecting part, and repeatedly twist the bolt, will make the end angle of the nut at the top of the bolt wear, which is prone to slipping.

[0007] The utility model provides a multipurpose bolt combination spare, specifically includes: connecting screw rod,

[0008] The connecting screw rod is externally provided with a thread, and the lower end surface of the connecting screw rod is in a circular table structure;

[0009] Nut, the inside of the nut is provided with a through circular hole, a thread is arranged below the inner end surface of the circular hole, and the upper end portion of the connecting screw rod is threadedly connected in the internal circular hole of the nut;

[0010] Retaining ring, the retaining ring is in a circular ring structure, and the retaining ring is fixedly installed at the upper position of the internal circular hole of the nut;

[0011] The cover plate is a circular plate structure, and a locking post is fixedly installed at the middle position of the lower end face of the cover plate. The locking post is engaged inside the retaining ring.

[0012] Furthermore, the thickness of the retaining ring is half the thickness of the nut, the upper end face of the retaining ring is flush with the upper end face of the nut, and the inner end face of the retaining ring is provided with four second slots, which are arranged in a ring structure.

[0013] Furthermore, the upper end face of the connecting screw is provided with four first slots in a ring shape, and the width of the first slots is the same as that of the second slots.

[0014] Furthermore, a sealing strip is installed on the lower end face of the cover plate, and the sealing strip has a circular structure.

[0015] Furthermore, four limiting blocks are installed in a ring on the outer end face of the locking post. The height of the limiting blocks is twice the height of the locking post. When the four first slots at the upper end of the connecting screw are aligned with the four second slots on the inner end face of the retaining ring, the limiting blocks on the outer end face of the locking post are inserted into the second slots and the first slots.

[0016] Furthermore, the nut body is a hexagonal stud structure, and three friction strips are welded to each outer end face of the nut. The outer end face of the nut has three insertion holes in a ring shape.

[0017] This utility model provides a multi-purpose bolt assembly, which has the following beneficial effects:

[0018] 1. The connecting screw and nut are connected by threads. In different application scenarios, workers can choose connecting screws of different lengths to match the nuts. The nut has a retaining ring installed inside. When the top of the nut is in contact with the retaining ring, the retaining ring can play a limiting role.

[0019] 2. When the four first slots on the upper end face of the connecting screw are aligned with the four second slots on the inner end face of the retaining ring, the locking pin at the lower end of the cover plate engages inside the retaining ring, the lower part of the limiting block engages in the first slot, and the upper part of the limiting block engages in the second slot inside the retaining ring. This further improves the stability between the connecting screw and the nut, so that when the worker rotates the nut, the connecting screw can always rotate synchronously with the nut.

[0020] 3. The cover plate can cover the nut, making the entire connection structure look more regular. A device hole is opened in the middle of the lower end face of the locking post. A magnet is inserted into the device hole. When the locking post is inserted into the retaining ring, the top surface of the magnet and the connecting screw are in contact. Through the attraction between the two, the locking post can be fixed inside the retaining ring, which improves the stability of the locking post and the cover plate.

[0021] 4. A ring-shaped sealing strip is installed on the lower end face of the cover plate. After the cover plate covers the nut, the sealing strip will be squeezed to fill the gap between the cover plate and the nut, thereby playing a sealing role. It can effectively prevent dust, moisture and other impurities from entering the connection part. For some connection scenarios with sealing requirements, such as outdoor equipment and device connections with waterproof and dustproof requirements, it can better protect the internal structure and extend the service life.

[0022] 5. The three friction strips welded to each outer end face of the nut further increase the friction between the wrench and the nut, allowing the wrench to apply force more firmly during operation, making it easier to tighten or loosen the nut and improving the efficiency of installation and disassembly. At the same time, the three circular insertion holes on the outer end face of the nut allow for operation with specific tools, such as cylindrical iron rods, when a wrench is not available. Inserting the iron rod into the insertion holes can also achieve the purpose of turning the nut, further expanding the convenience and functionality of use. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0024] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0025] In the attached diagram:

[0026] Figure 1 A schematic diagram of the overall device structure of this utility model is shown;

[0027] Figure 2 An exploded view of the overall device of this utility model is shown;

[0028] Figure 3 A cross-sectional view of the nut structure of this utility model is shown;

[0029] Figure 4 The diagram shows an exploded view of the cover plate, locking post, and magnet of this utility model.

[0030] Figure 5 A schematic diagram of the connecting screw structure of this utility model is shown;

[0031] Figure 6 The diagram shows an exploded view of the nut and connecting screw of this invention.

[0032] List of reference numerals in the attached diagram:

[0033] 1. Connecting screw; 101. First slot; 2. Nut; 201. Insertion hole; 202. Friction strip; 3. Retaining ring; 301. Second slot; 4. Cover plate; 401. Sealing strip; 5. Locking post; 501. Limiting block; 502. Device hole; 6. Magnet. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0035] Example 1: Please refer to Figures 1 to 6 :

[0036] This utility model proposes a multi-purpose bolt assembly, including: a connecting screw 1;

[0037] The connecting screw 1 has threads on its exterior, and the lower end face of the connecting screw 1 has a frustum-shaped structure.

[0038] Nut 2 has a through-hole inside and a threaded part on the lower part of the inner end surface of the hole. The upper part of the connecting screw 1 is threaded into the inner hole of nut 2.

[0039] The retaining ring 3 is a circular ring structure and is fixedly installed above the circular hole inside the nut 2.

[0040] Cover plate 4 is a circular plate structure. A locking post 5 is fixedly installed at the middle position of the lower end face of cover plate 4. The locking post 5 is engaged inside the retaining ring 3.

[0041] The thickness of the retaining ring 3 is half that of the nut 2. The upper end face of the retaining ring 3 is flush with the upper end face of the nut 2. The inner end face of the retaining ring 3 has four second slots 301 arranged in a ring structure. The upper end face of the connecting screw 1 has four first slots 101 arranged in a ring structure. The width of the first slots 101 is the same as that of the second slots 301. In use, the locking pin 5 at the lower end of the cover plate 4 is engaged in the inside of the retaining ring 3. The lower end of the limiting block 501 is engaged in the first slot 101, and the upper end of the limiting block 501 is engaged in the second slot 301 inside the retaining ring 3. This further improves the stability between the connecting screw 1 and the nut 2, so that when the worker rotates the nut 2, the connecting screw 1 can always rotate synchronously with the nut 2.

[0042] The lower end face of the cover plate 4 is equipped with a sealing strip 401. The sealing strip 401 has a circular structure. During use, the sealing strip 401 with a circular structure is installed on the lower end face of the cover plate 4. After the cover plate 4 covers the nut 2, the sealing strip 401 will be squeezed and fill the gap between the cover plate 4 and the nut 2, thereby playing a sealing role and effectively preventing dust, moisture and other impurities from entering the connection part.

[0043] The outer end face of the locking post 5 is ring-shaped with four limiting blocks 501. The height of the limiting blocks 501 is twice the height of the locking post 5. When the four first slots 101 on the upper end of the connecting screw 1 are aligned with the four second slots 301 on the inner end face of the retaining ring 3, the limiting blocks 501 on the outer end face of the locking post 5 are inserted into the second slots 301 and the first slots 101, which can improve the stability of the connecting screw 1 inside the nut 2.

[0044] The nut 2 has a hexagonal stud structure. Each outer end face of the nut 2 is welded with three friction strips 202. The outer end face of the nut 2 has three insertion holes 201 in a ring shape. In use, the three insertion holes 201 in a ring shape on the outer end face of the nut 2 can be used with a specific tool to operate without a wrench. For example, a cylindrical iron rod can be inserted into the insertion hole 201 to rotate the nut 2.

[0045] The working principle of this embodiment:

[0046] In this utility model, the connecting screw 1 serves as the basic component that penetrates the connected parts. The upper end of the connecting screw 1 is adapted to the thread at the lower end of the inner circular hole of the nut 2, thereby connecting the connecting screw 1 and the nut 2 together. In different application scenarios, workers can choose connecting screws 1 of different lengths to match the nut 2. A retaining ring 3 is installed inside the nut 2. When the top of the nut 2 is in contact with the retaining ring 3, the retaining ring 3 can play a limiting role. At this time, the four first slots 101 on the upper end face of the connecting screw 1 are aligned with the four second slots 301 on the inner end face of the retaining ring 3. A retaining post 5 is fixedly installed in the middle of the lower end face of the cover plate 4, and the outer end face of the retaining post 5 is fixedly installed with... There are four limiting blocks 501. The worker can engage the locking pin 5 at the lower end of the cover plate 4 inside the retaining ring 3. The lower part of the limiting block 501 engages in the first slot 101, and the upper part of the limiting block 501 engages in the second slot 301 inside the retaining ring 3. This further improves the stability between the connecting screw 1 and the nut 2, so that when the worker rotates the nut 2, the connecting screw 1 can always rotate synchronously with the nut 2. The cover plate 4 can cover the nut 2, making the entire connection structure look more regular. A device hole 502 is opened in the middle of the lower end face of the locking pin 5. A magnet 6 is engaged inside the device hole 502. The locking pin 5 is engaged with the retaining ring. When the magnet 6 is inside the retaining ring 3, its top surface is in contact with the connecting screw 1. The attraction between them fixes the retaining post 5 inside the retaining ring 3, improving the stability of the retaining post 5 and the cover plate 4. A circular sealing strip 401 is installed on the lower end face of the cover plate 4. After the cover plate 4 covers the nut 2, the sealing strip 401 is compressed, filling the gap between the cover plate 4 and the nut 2, thus achieving a seal. This effectively prevents dust, moisture, and other impurities from entering the connection. For connection scenarios requiring high sealing performance, such as outdoor equipment or devices requiring waterproofing and dustproofing, this better protects the internal structure and extends service life. The nut 2 mainly... The body features a hexagonal stud structure, facilitating tightening or loosening operations using conventional tools such as wrenches. The three friction strips 202 welded to each outer end face further increase the friction between the wrench and the nut 2, allowing the wrench to apply force more firmly during operation, making it easier to tighten or loosen the nut 2 and improving installation and disassembly efficiency. Simultaneously, the three annular insertion holes 201 on the outer end face of the nut 2 allow for the insertion of specific tools, such as cylindrical iron rods, when a wrench is unavailable. Inserting the iron rod into the insertion holes 201 also allows the nut 2 to be rotated, further enhancing its convenience and functionality.

Claims

1. A multi-purpose bolt assembly, characterized in that, Includes: a connecting screw (1), the connecting screw (1) having threads on its exterior and the lower end face of the connecting screw (1) having a frustum-shaped structure; a nut (2), the nut (2) having a through-hole inside, the nut (2) having threads on the lower part of the inner end surface of the hole, the upper part of the connecting screw (1) being threaded into the inner hole of the nut (2); a retaining ring (3), the retaining ring (3) having a ring-shaped structure, the retaining ring (3) being fixedly installed above the inner hole of the nut (2); and a cover plate (4), the cover plate (4) having a circular plate-shaped structure, a retaining post (5) being fixedly installed in the middle of the lower end face of the cover plate (4), the retaining post (5) being engaged inside the retaining ring (3).

2. The multi-purpose bolt assembly according to claim 1, characterized in that, The thickness of the retaining ring (3) is half the thickness of the nut (2). The upper end face of the retaining ring (3) is flush with the upper end face of the nut (2). The inner end face of the retaining ring (3) is provided with four second slots (301), which are arranged in a ring structure.

3. A multi-purpose bolt assembly according to claim 1, characterized in that, The upper end face of the connecting screw (1) is provided with four first slots (101) in a ring shape, and the width of the first slots (101) is the same as that of the second slots (301).

4. A multi-purpose bolt assembly according to claim 1, characterized in that, A sealing strip (401) is installed on the lower end face of the cover plate (4), and the sealing strip (401) has a circular structure.

5. A multi-purpose bolt assembly according to claim 1, characterized in that, The outer end face of the locking post (5) is equipped with four limiting blocks (501) in a ring shape. The height of the limiting blocks (501) is twice the height of the locking post (5). When the four first slots (101) at the upper end of the connecting screw (1) are aligned with the four second slots (301) on the inner end face of the retaining ring (3), the limiting blocks (501) on the outer end face of the locking post (5) are inserted into the second slots (301) and the first slots (101).

6. A multi-purpose bolt assembly according to claim 1, characterized in that, The nut (2) has a hexagonal stud structure. Each outer end face of the nut (2) is welded with three friction strips (202). The outer end face of the nut (2) has three insertion holes (201) in a ring shape.

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