Anti-fracture bolt

Abstract

The utility model discloses an anti-fracture bolt which comprises a bolt head, a bolt rod, a cross groove, a vertical hole, an anti-fracture structure, an anti-fracture reinforcing column, a first anti-fracture reinforcing rod, a second anti-fracture reinforcing rod and a reinforcing structure, the lower end face of the bolt head is fixedly connected with the bolt rod, and the cross groove is formed in the upper end face of the bolt head. A vertical hole is jointly formed in the center position of the interior of the bolt head and the center position of the interior of the bolt rod, the vertical hole is formed in the length direction of the bolt rod, and an anti-breaking structure is arranged in the vertical hole and comprises an anti-breaking reinforcing column, a first anti-breaking reinforcing rod and a second anti-breaking reinforcing rod. The top end of the anti-breaking reinforcing column is fixedly connected with the inner top wall of the vertical hole, the bottom end of the anti-breaking reinforcing column is fixedly connected with the inner bottom wall of the vertical hole, the overall strength of the bolt can be greatly improved, and therefore the situation that the bolt is broken after being used for a long time is avoided; and the reinforcing structure is additionally arranged, so that the strength of the joint between the bolt head and the bolt rod can be further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to the technical field of anti-fracture bolts. Background Art

[0002] A bolt is a mechanical part, consisting of two parts: a head and a screw rod (a cylinder with external threads). It is a cylindrical threaded fastener used with a nut. The bolt cooperates with the nut to fasten and connect two parts with through holes. This connection form is called bolt connection.

[0003] Currently, commonly used bolts do not have anti-theft and anti-loosening structures, often causing theft of objects in some public places or mechanical accidents due to screw loosening.

[0004] To solve the problems raised in the background art, for example, the anti-theft bolt disclosed in Patent Application No. CN200520046927.5 includes a screw, a nut, and a square pin. Its characteristic lies in that several longitudinal grooves are opened on the screw and the nut. When fixing, the square pin is knocked into the groove. It opens several longitudinal grooves on the ordinary screw and nut. When fastening objects, it is used in the same way as an ordinary bolt. However, finally, a certain longitudinal groove on the nut should be aligned with a certain longitudinal groove on the screw, and a square pin can be knocked into the groove. If it is to prevent theft, the square pin is cut off at the root, and the nut can no longer be rotated and disassembled; if it is to prevent loosening, a section is left at the root of the square pin. When it needs to be disassembled later, as long as the square pin is pulled out, the nut can be rotated, so as to achieve the purpose of anti-theft and anti-loosening. However, this structure still has the following defects:

[0005] This bolt lacks an anti-fracture structure, making the bolt head prone to damage after long-term use. As a result, it is easy to slip when turning the bolt head, and the bolt head is very difficult to turn, affecting the use.

[0006] To solve the problems raised in the above technology, for example, Patent Application No. CN202120839707.7 discloses an anti-fracture bolt, which includes a bolt body, a gasket, and an outer cover. The gasket is in a regular hexagon shape; the bolt body includes a screw rod, a driving rod, and a bolt head; the driving rod is connected between the screw rod and the bolt head; a driving surface is opened on the driving rod; a driving groove matching the driving rod is opened inside the gasket; the gasket is sleeved on the driving rod. By setting a driving rod on the bolt body, when the bolt head is damaged, the bolt can still be rotated by turning the driving rod. Of course, the driving rod can also be rotated by turning the gasket; and the outer cover of the present utility model is connected to the vertical clamping hole through a vertical clamping rod. Turning the outer cover can rotate the gasket. Of course, the gasket can be rotated by a hexagonal wrench, and the rotation method of the gasket is diverse. However, this structure still has the following defects:

[0007] Although the rotation of the bolt is achieved by turning the driving rod, when the bolt head is damaged, it will affect the use of the bolt to a certain extent. Moreover, after the connection between the bolt head and the bolt rod breaks, the fastening effect of the bolt is greatly reduced, thereby reducing its service life. Summary of the Invention

[0008] The purpose of the present utility model is to solve the problems in the prior art and propose an anti-fracture bolt, which can greatly improve the overall strength of the bolt, thereby avoiding the fracture of the bolt during long-term use, and adding a reinforcement structure can further enhance the strength of the connection between the bolt head and the bolt rod.

[0009] To achieve the above object, the present utility model proposes an anti-fracture bolt, which includes a bolt head, a bolt rod, a cross slot, a vertical hole, an anti-fracture structure, an anti-fracture strengthening column, a first anti-fracture strengthening rod, a second anti-fracture strengthening rod, and a reinforcement structure. The lower end surface of the bolt head is fixedly connected to the bolt rod. A cross slot is provided on the upper end surface of the bolt head. A vertical hole is jointly provided at the central position inside the bolt head and the bolt rod. The vertical hole is arranged along the length direction of the bolt rod. An anti-fracture structure is arranged inside the vertical hole. The anti-fracture structure includes an anti-fracture strengthening column, a first anti-fracture strengthening rod, and a second anti-fracture strengthening rod. The top end of the anti-fracture strengthening column is fixedly connected to the inner top wall of the vertical hole, and the bottom end of the anti-fracture strengthening column is fixedly connected to the inner bottom wall of the vertical hole. A plurality of first anti-fracture strengthening rods and a plurality of second anti-fracture strengthening rods are arranged on the outer side wall of the anti-fracture strengthening column. A reinforcement structure is installed above the outside of the bolt rod.

[0010] Preferably, the first anti-fracture strengthening rods are symmetrically arranged outside the anti-fracture strengthening column, and the first anti-fracture strengthening rods are arranged longitudinally.

[0011] Preferably, a plurality of clamping grooves corresponding to the first anti-fracture strengthening rods are symmetrically provided on the side wall of the vertical hole. One end of the first anti-fracture strengthening rod is embedded in the clamping groove, and the other end of the first anti-fracture strengthening rod is fixedly connected to the outer wall of the anti-fracture strengthening column.

[0012] Preferably, the second anti-fracture strengthening rods are vertically arranged between the first anti-fracture strengthening rods, and the second anti-fracture strengthening rods are arranged longitudinally.

[0013] Preferably, the reinforcement structure includes a reinforcing plate, reinforcing ribs, and reinforcing rods. The reinforcing plate is installed above the outside of the bolt rod. The reinforcing ribs are welded between the reinforcing plate and the bolt head, and the reinforcing ribs are attached to the outer wall of the bolt rod. The reinforcing rods are installed between the reinforcing plate and the bolt head.

[0014] Preferably, the number of the reinforcing ribs is several, and several of the reinforcing ribs are distributed in a ring shape.

[0015] Preferably, there are several reinforcing rods, and the several reinforcing rods are distributed in a ring shape.

[0016] Advantages of the present utility model:

[0017] 1. By setting the anti-breaking structure, the overall strength of the bolt can be greatly improved. Since the upper and lower ends of the anti-breaking reinforcement column are in mutual abutment in the vertical hole, it plays a role in fixing and supporting the bolt head and the bolt rod. At the same time, a first anti-breaking reinforcement rod and a second anti-breaking reinforcement rod are arranged outside the anti-breaking reinforcement column. The first anti-breaking reinforcement rod is embedded in the side wall of the vertical hole, which can further play a role in fixing and supporting, while the second anti-breaking reinforcement rod can improve the stability of the first anti-breaking reinforcement rod, thereby ensuring that the whole bolt is not prone to breakage during the connection process, so as to achieve the purpose of anti-fracture and solve the problem that the bolt is prone to breakage during the installation process;

[0018] 2. By setting the reinforcement structure, the strength of the connection between the bolt head and the bolt rod can be further enhanced. Since the reinforcing rib is welded between the reinforcing plate and the bolt head and fits on the outer wall of the bolt rod, the strength of the connection between the bolt head and the bolt rod is greatly increased, avoiding breakage when the torque is too large, effectively extending the service life of the bolt. At the same time, a reinforcing rod is installed between the reinforcing plate and the bolt head, which can play a role in supporting and stabilizing between the bolt head and the bolt rod, thereby further improving the strength of the connection between the bolt head and the bolt rod, and solving the problem that the connection between the bolt head and the bolt rod is prone to breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front view of an anti-breaking bolt of the present utility model;

[0020] Figure 2 is the internal sectional view of an anti-breaking bolt of the present utility model;

[0021] Figure 3 is the schematic diagram of the clamping groove of an anti-breaking bolt of the present utility model;

[0022] Figure 4 is the schematic diagram of the reinforcement structure of an anti-breaking bolt of the present utility model;

[0023] In the figure: 1 - bolt head, 2 - bolt rod, 3 - cross recess, 4 - vertical hole, 41 - clamping groove, 5 - anti-breaking structure, 51 - anti-breaking reinforcement column, 52 - first anti-breaking reinforcement rod, 53 - second anti-breaking reinforcement rod, 6 - reinforcement structure, 61 - reinforcing plate, 62 - reinforcing rib, 63 - reinforcing rod. DETAILED DESCRIPTION OF THE INVENTION

[0024] Refer to Figures 1 to 4, a fracture-proof bolt of the present utility model, comprising a bolt head 1, a bolt rod 2, a cross slot 3, a vertical hole 4, a fracture-proof structure 5, a fracture-proof reinforcing column 51, a first fracture-proof reinforcing rod 52, a second fracture-proof reinforcing rod 53, and a reinforcement structure 6. The lower end face of the bolt head 1 is fixedly connected to the bolt rod 2. A cross slot 3 is provided on the upper end face of the bolt head 1. A vertical hole 4 is jointly provided at the internal central position of the bolt head 1 and the bolt rod 2. The vertical hole 4 is arranged along the length direction of the bolt rod 2. A fracture-proof structure 5 is arranged in the vertical hole 4. The fracture-proof structure 5 includes a fracture-proof reinforcing column 51, a first fracture-proof reinforcing rod 52, and a second fracture-proof reinforcing rod 53. The top end of the fracture-proof reinforcing column 51 is fixedly connected to the inner top wall of the vertical hole 4. The bottom end of the fracture-proof reinforcing column 51 is fixedly connected to the inner bottom wall of the vertical hole 4. A plurality of first fracture-proof reinforcing rods 52 and a plurality of second fracture-proof reinforcing rods 53 are arranged on the outer side wall of the fracture-proof reinforcing column 51. A reinforcement structure 6 is installed above the outer part of the bolt rod 2. Since the upper and lower ends of the fracture-proof reinforcing column 51 are abutted against each other in the vertical hole 4, it plays a role of fixing and supporting the bolt head 1 and the bolt rod 5. At the same time, the first fracture-proof reinforcing rod 52 and the second fracture-proof reinforcing rod 53 are arranged outside the fracture-proof reinforcing column 51. The first fracture-proof reinforcing rod 52 is embedded in the side wall of the vertical hole 4, which can further play a role of fixing and supporting. And the second fracture-proof reinforcing rod 53 can improve the stability of the first fracture-proof reinforcing rod 52, thereby ensuring that the whole bolt is not prone to fracture during the connection process.

[0025] Refer to Figure 2 , a fracture-proof bolt of the present utility model, the first fracture-proof reinforcing rods 52 are symmetrically arranged outside the fracture-proof reinforcing column 51, and the first fracture-proof reinforcing rods 52 are arranged longitudinally, which can ensure the overall stability of the bolt.

[0026] Refer to Figure 2 and Figure 3 , a fracture-proof bolt of the present utility model, a plurality of clamping grooves 41 corresponding to the first fracture-proof reinforcing rods 52 are symmetrically provided on the side wall of the vertical hole 4. One end of the first fracture-proof reinforcing rod 52 is embedded in the clamping groove 41, and the other end of the first fracture-proof reinforcing rod 52 is fixedly connected to the outer wall of the fracture-proof reinforcing column 51. By fitting the first fracture-proof reinforcing rod 52 into the clamping groove 41, the first fracture-proof reinforcing rod 52 is not prone to shaking, thereby ensuring the overall stability of the bolt.

[0027] Refer to Figure 2 , a fracture-proof bolt of the present utility model, the second fracture-proof reinforcing rods 53 are vertically arranged between the first fracture-proof reinforcing rods 52, and the second fracture-proof reinforcing rods 53 are arranged longitudinally, which can further improve the stability of the first fracture-proof reinforcing rods 52.

[0028] Refer to Figure 4, a fracture-proof bolt of the present utility model, the reinforcement structure 6 includes a reinforcing plate 61, reinforcing ribs 62 and reinforcing rods 63. The reinforcing plate 61 is installed above the outer part of the bolt rod 2. The reinforcing ribs 62 are welded between the reinforcing plate 61 and the bolt head 1 and are attached to the outer wall of the bolt rod 2. Since the reinforcing ribs 62 are welded between the reinforcing plate 61 and the bolt head 1 and are attached to the outer wall of the bolt rod 2, the strength of the connection between the bolt head 1 and the bolt rod 2 is greatly increased, avoiding fracture when the torque is too large, effectively extending the service life of the bolt. At the same time, a reinforcing rod 63 is installed between the reinforcing plate 61 and the bolt head 1, which can play a role in supporting and stabilizing between the bolt head 1 and the bolt rod 2, thereby further improving the strength of the connection between the bolt head 1 and the bolt rod 2.

[0029] Refer to Figure 4 , a fracture-proof bolt of the present utility model, the number of the reinforcing ribs 62 is several, and several of the reinforcing ribs 62 are distributed in a ring. The number of the reinforcing rods 63 is several, and several of the reinforcing rods 63 are distributed in a ring. By arranging both the reinforcing ribs 62 and the reinforcing rods 63 in a ring shape, the stability of the whole bolt during use can be ensured, thereby extending its service life.

[0030] The working process of the present utility model:

[0031] During the working process of a fracture-proof bolt of the present utility model, by setting the anti-fracture structure 5, the overall strength of the bolt can be greatly improved. Since the upper and lower ends of the anti-fracture strengthening column 51 are mutually abutted in the vertical hole 4, it plays a role in fixing and supporting the bolt head 1 and the bolt rod 5. At the same time, a first anti-fracture strengthening rod 52 and a second anti-fracture strengthening rod 53 are arranged outside the anti-fracture strengthening column 51. The first anti-fracture strengthening rod 52 is embedded in the side wall of the vertical hole 4, which can further play a role in fixing and supporting, and the second anti-fracture strengthening rod 53 can improve the stability of the first anti-fracture strengthening rod 52, thereby ensuring that the whole bolt is not easily fractured during the connection process.

[0032] By setting the reinforcement structure 6, the strength of the connection between the bolt head 1 and the bolt rod 2 can be further enhanced. Since the reinforcing ribs 62 are welded between the reinforcing plate 61 and the bolt head 1 and are attached to the outer wall of the bolt rod 2, the strength of the connection between the bolt head 1 and the bolt rod 2 is greatly increased, avoiding fracture when the torque is too large, effectively extending the service life of the bolt. At the same time, a reinforcing rod 63 is installed between the reinforcing plate 61 and the bolt head 1, which can play a role in supporting and stabilizing between the bolt head 1 and the bolt rod 2, thereby further improving the strength of the connection between the bolt head 1 and the bolt rod 2.

[0033] The above embodiments are illustrative of the present utility model and not restrictive thereof. Any solution obtained by simply transforming the present utility model falls within the protection scope of the present utility model.

Claims

1. A fracture-proof bolt, characterized in that: The invention comprises a bolt head (1), a bolt rod (2), a cross groove (3), a vertical hole (4), an anti-breaking structure (5), an anti-breaking reinforcement column (51), a first anti-breaking reinforcement rod (52), a second anti-breaking reinforcement rod (53), and a reinforcement structure (6), wherein the lower end surface of the bolt head (1) is fixedly connected to the bolt rod (2), the upper end surface of the bolt head (1) is provided with a cross groove (3), the bolt head (1) and the bolt rod (2) are provided with a vertical hole (4) at the inner center position, the vertical hole (4) is arranged along the length direction of the bolt rod (2), and the vertical hole (4) is provided inside the bolt rod (2). An anti-breaking structure (5) is provided, the anti-breaking structure (5) comprising an anti-breaking reinforcement column (51), a first anti-breaking reinforcement rod (52) and a second anti-breaking reinforcement rod (53), the top end of the anti-breaking reinforcement column (51) is fixedly connected to the inner top wall of the vertical hole (4), the bottom end of the anti-breaking reinforcement column (51) is fixedly connected to the inner bottom wall of the vertical hole (4), the outer side wall of the anti-breaking reinforcement column (51) is provided with a plurality of first anti-breaking reinforcement rods (52) and a plurality of second anti-breaking reinforcement rods (53), and a reinforcement structure (6) is installed on the outer upper part of the bolt rod (2).

2. The anti-fracture bolt according to claim 1, characterized in that: The first anti-breakage reinforcement rods (52) are symmetrically arranged outside the anti-breakage reinforcement column (51), and the first anti-breakage reinforcement rods (52) are arranged and distributed in a longitudinal direction.

3. The anti-fracture bolt according to claim 1, characterized in that: A plurality of clamping grooves (41) corresponding to the first anti-breaking reinforcement rod (52) are symmetrically formed on the side wall of the vertical hole (4); one end of the first anti-breaking reinforcement rod (52) is embedded in the clamping groove (41); and the other end of the first anti-breaking reinforcement rod (52) is fixedly connected to the outer wall of the anti-breaking reinforcement column (51).

4. The anti-fracture bolt according to claim 1, characterized in that: The second anti-break reinforcement bars (53) are vertically arranged between the first anti-break reinforcement bars (52), and the second anti-break reinforcement bars (53) are arranged and distributed in a longitudinal direction.

5. The anti-fracture bolt according to claim 1, characterized in that: The reinforcement structure (6) comprises a reinforcement plate (61), a reinforcement rib (62) and a reinforcement rod (63); the reinforcement plate (61) is mounted above the outside of the bolt rod (2); the reinforcement rib (62) is welded between the reinforcement plate (61) and the bolt head (1), and the reinforcement rib (62) is attached to the outer wall of the bolt rod (2); and the reinforcement rod (63) is mounted between the reinforcement plate (61) and the bolt head (1).

6. The anti-fracture bolt according to claim 5, characterized in that: There are a plurality of reinforcing ribs (62), and the plurality of reinforcing ribs (62) are distributed in a ring shape.

7. The anti-fracture bolt according to claim 5, characterized in that: There are a plurality of the reinforcement rods (63), and the plurality of reinforcement rods (63) are distributed in a ring shape.

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