Bolt with bolt head protection function

Abstract

The bolt with the bolt head protection function comprises a bolt rod part and a bolt head part, the outer surface of the upper end of the bolt rod part is sleeved with a center control rod piece, the center control rod piece is welded to the lower end of the bolt head part, and the bolt rod part forms a telescopic structure in the center control rod piece. The protection mechanism is arranged on the outer side of the upper end of the bolt head, and the protection mechanism is composed of a protection sleeve, a connecting groove and super glue. According to the bolt with the bolt head protection function, the bolt rod part is telescopically adjusted in the center control rod piece, the use length of the bolt can be adjusted, the use scene of the bolt is enriched, the bolt can be further limited and locked through the arrangement of anti-skid protrusions and anti-skid lines, the bolt is prevented from loosening, and the service life of the bolt is prolonged. And in combination with the arrangement of the protection mechanism, the head of the bolt is prevented from being directly exposed outside, and the good protection effect on the head of the bolt can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of bolt-related technology, specifically a bolt with bolt head protection function. Background Technology

[0002] A bolt is a fastener consisting of a head and a threaded shank. The threaded shank has external threads and is used to connect two parts with through holes. Bolts are commonly used to connect and fix various mechanical equipment and structures, playing an important role in industry and being widely used.

[0003] As disclosed in announcement number CN214788479U, a hexagonal head bolt with self-locking function includes a connecting post, a screw rod, a cross groove, and a cover plate. The connecting post has an external hexagonal bolt head stamped on its left side, with a rotating groove inside. A stud is fixed to the right side of the connecting post, with a first through hole inside the connecting post and a second through hole inside the stud. This hexagonal head bolt with self-locking function is equipped with an expansion bar, external threads, a tightening element, and a screw rod. Rotating the screw rod pulls the tightening element to slide along the tapered hole and the second through hole. The tightening element squeezes the expansion bar, causing the right side of the expansion bar to move away from the screw rod, thus making the diameter of the right side of the screw rod larger than the diameter of the left side. This allows for fastening without the need for a nut. To disassemble the bolt, the screw rod is rotated in the opposite direction to reset the tightening element. Then, the stud is rotated in the opposite direction, and the threaded hole on the workpiece squeezes the expansion bar, resetting it. This facilitates quick removal of the bolt and makes it more practical to use.

[0004] However, in the existing technology, the length of bolts is mostly fixed, and different bolts need to be replaced for different scenarios. It is inconvenient to directly adjust the length of the bolts by extension or retraction. Moreover, the bolts have poor fastening properties and are prone to falling off, especially the bolt head is not well protected. For example, the comparative patents listed above have this problem.

[0005] To address this issue, we propose a bolt with bolt head protection function. Utility Model Content

[0006] The purpose of this utility model is to provide a bolt with bolt head protection function to solve the problems mentioned in the background art, such as the fact that the length of most bolts is fixed, different bolts need to be replaced in different scenarios, it is inconvenient to directly adjust the length of the bolt, and the bolt's tightness is poor, making it easy to fall off, especially the poor protection effect on the bolt head.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a bolt with bolt head protection function, comprising a bolt shank and a bolt head;

[0008] Also includes:

[0009] A central control rod is sleeved on the outer surface of the upper end of the bolt shank and welded to the lower end of the bolt head. The bolt shank forms a telescopic structure inside the central control rod.

[0010] The protective mechanism is located on the outer side of the upper end of the bolt head and consists of a protective sleeve, a connecting groove, and strong adhesive.

[0011] Preferably, the outer surface of the central control rod is provided with anti-slip texture at equal angles, and multiple fixing holes for limiting positioning are provided at equal intervals on both the left and right ends of the central control rod.

[0012] Preferably, the lower edge of the bolt head is provided with multiple anti-slip protrusions at equal intervals.

[0013] Preferably, a spring is provided inside the upper end of the bolt rod, and the movable end of the spring is fixedly connected to a movable block for support and limiting.

[0014] Meanwhile, the movable block is inserted into the fixing hole at the corresponding position.

[0015] Preferably, the protective sleeve has a connecting groove in the middle, and the protective sleeve is bonded to the upper edge of the bolt head by strong adhesive.

[0016] Preferably, the protective sleeve is placed on the outer side of the upper end of the bolt head.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: the bolt with bolt head protection function can adjust the length of the bolt by extending and retracting the bolt shank in the central control member, which enriches the application scenarios of the bolt. The anti-slip protrusions and anti-slip textures can further limit and lock the bolt, prevent the bolt from loosening, and improve the tightness of the bolt during use. Combined with the setting of the protective mechanism, the bolt head is not directly exposed, which can provide a good protection effect for the bolt head.

[0018] 1. It is equipped with a central control rod and a movable block. The bolt rod moves telescopically within the central control rod, which facilitates the adjustment of the bolt's service length and enriches the practical application scenarios of the bolt.

[0019] 2. It is equipped with anti-slip protrusions and anti-slip textures, which improve the tightness of the bolts during use and effectively prevent loosening.

[0020] 3. It is equipped with a protective mechanism, which consists of a protective sleeve, a connecting groove, and strong adhesive. The protective mechanism prevents the bolt head from being directly exposed and provides good protection for the bolt head, thereby effectively preventing accidental operation of the bolt. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0023] Figure 3 This is an exploded structural diagram of the bolt rod and central control rod of this utility model;

[0024] Figure 4 This is an exploded structural diagram of the bolt shank and movable block of this utility model;

[0025] Figure 5 This is a schematic diagram of the explosion structure of the bolt head and protective mechanism of this utility model.

[0026] In the diagram: 1. Bolt rod; 2. Central control rod; 3. Bolt head; 4. Anti-slip protrusion; 5. Anti-slip texture; 6. Spring; 7. Movable block; 8. Fixing hole; 9. Protective mechanism; 10. Protective sleeve; 11. Connecting groove; 12. Strong adhesive. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-5 The present invention provides the following technical solution.

[0029] Example 1: To address the problem in existing technologies where bolt lengths are mostly fixed, requiring different bolts for different scenarios and making direct adjustment of bolt length inconvenient, this example provides a bolt with head protection. The bolt comprises a bolt shank 1, a central control rod 2, a bolt head 3, a spring 6, a movable block 7, and fixing holes 8. The central control rod 2 is fitted onto the outer surface of the upper end of the bolt shank 1 and welded to the lower end of the bolt head 3. The bolt shank 1 forms a telescopic structure within the central control rod 2. A spring 6 is installed inside the upper end of the bolt shank 1, and the movable end of the spring 6 is fixedly connected to a movable block 7 for support and limitation. Multiple fixing holes 8 for limitation are evenly spaced on both sides of the central control rod 2, and the movable blocks 7 are inserted into the corresponding fixing holes 8. Figure 1 , Figure 2 and Figure 4As shown, in actual use, according to the connection requirements of the workpiece, an external needle-like object can be used to poke the movable block 7. The movable block 7 extends and retracts at the upper end of the bolt shank 1. At this time, the movable block 7 compresses the spring 6, causing the spring 6 to undergo elastic deformation. The movable block 7 moves out of the fixed hole 8, thereby releasing the limit between the bolt shank 1 and the central control rod 2. Then, the bolt shank 1 is pulled, and the bolt shank 1 moves and retracts within the central control rod 2, which facilitates the adjustment of the overall length of the bolt and enriches the bolt's usage scenarios. After the adjustment is completed, when the movable block 7 moves to the corresponding fixed hole 8, the spring 6 recovers its elastic deformation, pushing the movable block 7 to slide at the upper end of the bolt shank 1, so that the movable block 7 is inserted into the corresponding fixed hole 8, positioning the central control rod 2 and the bolt shank 1.

[0030] Example 2: To address the problem of poor bolt fastening and easy detachment in existing technologies, this example provides a bolt with bolt head protection, featuring anti-slip protrusions 4 and anti-slip grooves 5. Multiple anti-slip protrusions 4 are evenly spaced along the lower edge of the bolt head 3, and anti-slip grooves 5 are formed at equal angles on the outer surface of the central control rod 2. Figure 2 and Figure 3 As shown, during use, the anti-slip protrusions 4 and anti-slip textures 5 come into contact with the workpiece being connected, increasing the friction between the bolt and the workpiece, improving the anti-slip performance of the bolt, and effectively preventing the bolt from loosening or even falling off.

[0031] Example 3: To address the problem of poor protection for bolt heads in existing technologies, this example provides a bolt with head protection, comprising a protective mechanism 9. The protective mechanism 9 is located on the outer side of the upper end of the bolt head 3 and consists of a protective sleeve 10, a connecting groove 11, and strong adhesive 12. The connecting groove 11 is located in the middle of the protective sleeve 10, and the protective sleeve 10 is bonded to the edge of the upper end of the bolt head 3 using strong adhesive 12. The protective sleeve 10 covers the outer side of the upper end of the bolt head 3. Figure 1 and Figure 5 As shown, after the bolt is connected to the workpiece, the protective sleeve 10 is placed on the outside of the upper end of the bolt head 3. The upper end of the bolt head 3 is engaged in the connecting groove 11. In addition, the strong adhesive 12 can be used to adhere and connect the protective sleeve 10 and the bolt head 3. By setting the protective sleeve 10, the bolt head 3 is prevented from being directly exposed to the outside, preventing accidental contact with the bolt head 3 and providing good protection for the bolt head 3.

[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 bolt with bolt head protection function, comprising a bolt shank (1) and a bolt head (3); Its features are, Also includes: The central control rod (2) is sleeved on the outer surface of the upper end of the bolt rod (1), and the central control rod (2) is welded to the lower end of the bolt head (3). The bolt rod (1) forms a telescopic structure inside the central control rod (2). The protective mechanism (9) is located on the outer side of the upper end of the bolt head (3), and the protective mechanism (9) consists of a protective sleeve (10), a connecting groove (11) and strong adhesive (12).

2. A bolt with bolt head protection function according to claim 1, characterized in that: The outer surface of the central control rod (2) is provided with anti-slip texture (5) at equal angles, and multiple fixing holes (8) for limiting are provided at equal intervals on both the left and right ends of the central control rod (2).

3. A bolt with bolt head protection function according to claim 1, characterized in that: Multiple anti-slip protrusions (4) are provided at equal intervals at the lower edge of the bolt head (3).

4. A bolt with bolt head protection function according to claim 1, characterized in that: A spring (6) is provided inside the upper end of the bolt rod (1), and a movable block (7) for support and limiting is fixedly connected to the movable end of the spring (6); Meanwhile, the movable block (7) is inserted into the fixing hole (8) at the corresponding position.

5. A bolt with bolt head protection function according to claim 1, characterized in that: The protective sleeve (10) has a connecting groove (11) in the middle, and the protective sleeve (10) is bonded to the upper edge of the bolt head (3) by strong adhesive (12).

6. A bolt with bolt head protection function according to claim 5, characterized in that: The protective sleeve (10) is placed on the outside of the upper end of the bolt head (3).

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