CN217271306U

CN217271306U - Anti-damage high-strength bolt

Info

Publication number: CN217271306U
Application number: CN202220441054.1U
Authority: CN
Inventors: 张洪博; 王跃兵
Original assignee: Chongqing Zongxing'an Fastener Co ltd
Current assignee: Chongqing Zongxing'an Fastener Co ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-08-23
Anticipated expiration: 2032-03-02

Abstract

The utility model relates to the technical field of bolts, in particular to a breakage-resistant high-strength bolt, which comprises a bolt head, a bolt body and a screw rod; the top end of the bolt body is fixedly connected with the bolt head, and the bottom end of the bolt body is connected with the screw rod through a fixing mechanism; the fixing mechanism comprises a connecting rod, a U-shaped plate, a matching block and an inserting rod; the connecting rod is fixedly connected to the top end of the screw rod; the bottom end of the bolt body is provided with a connecting hole; the connecting rod is in clearance fit with the connecting hole; a cavity is arranged inside the bolt body; the U-shaped plate is connected in the cavity in a sliding manner; the cavity is also internally connected with two first plates in a sliding manner, and the two first plates are symmetrically arranged at two sides of the connecting hole; the matching block is fixedly connected to one side of a first plate, and the inserting rod is fixedly connected to the other side of the first plate; the surface of the connecting rod is provided with a jack; the overall length of the bolt is increased, and the applicability of the bolt is improved.

Description

Anti-damage high-strength bolt

Technical Field

The utility model relates to a bolt technical field specifically is an anti-damage high strength bolt.

Background

A bolt is an important mechanical part that, in conjunction with the use of a nut, can join two parts with a hole.

The existing bolt generally consists of a head and a screw, and the length of the bolt is generally fixed and cannot be spliced to increase the length of the bolt, so that the applicability of the bolt is poor; therefore, a breakage-resistant high-strength bolt has been proposed in view of the above problems.

SUMMERY OF THE UTILITY MODEL

In order to compensate prior art's not enough, solve generally by head and screw rod constitution of current bolt, the length of bolt is generally fixed moreover, can not splice the length in order to increase the bolt, leads to the relatively poor problem of suitability of this kind of bolt, the utility model provides an anti damage high strength bolt.

The utility model provides a technical scheme that its technical problem adopted is: the utility model discloses a breakage-resistant high-strength bolt, which comprises a bolt head, a bolt body and a screw rod; the top end of the bolt body is fixedly connected with the bolt head, and the bottom end of the bolt body is connected with the screw rod through a fixing mechanism; the fixing mechanism comprises a connecting rod, a U-shaped plate, a matching block and an inserting rod; the connecting rod is fixedly connected to the top end of the screw rod; the bottom end of the bolt body is provided with a connecting hole; the connecting rod is in clearance fit with the connecting hole; a cavity is arranged inside the bolt body; the U-shaped plate is connected in the cavity in a sliding manner; the cavity is also internally connected with two first plates in a sliding manner, and the two first plates are symmetrically arranged at two sides of the connecting hole; the matching block is fixedly connected to one side of a plate, and the inserting rod is fixedly connected to the other side of the plate; the surface of the connecting rod is provided with a jack, and the inserting rod is in clearance fit with the jack; the top end of the bolt head penetrates through and is connected with a straight rod in a sliding mode, and the bottom end of the straight rod is fixedly connected to the top of the U-shaped plate; the overall length of the bolt is increased, and the applicability of the bolt is improved.

Preferably, the top end of the straight rod is sleeved and fixedly connected with a push plate; the top of the bolt head is fixedly connected with a magnet at the corresponding position of the push plate; during operation, through setting up push pedal and magnet, can realize the fixed to the straight-bar, be favorable to improving the fixed effect to the screw rod.

Preferably, a chamfer is arranged at one side of the bottom of the U-shaped plate close to the matching block; a chamfer is also arranged at one side of the top of the matching block close to the U-shaped plate, and the U-shaped plate and the matching block are in a sliding matching state; when the U-shaped plate presses the matching block, the matching block moves horizontally.

Preferably, a spring is fixedly connected to one side of the first plate, which is far away from the matching block, and the other end of the spring is fixedly connected to the inner wall of the cavity; through setting up the spring, be convenient for realize reseing to a board, and then when dismantling the screw rod, realize the separation to screw rod and bolt body.

Preferably, the screw consists of a middle layer and a strengthening layer, and the strengthening layer is fixedly connected to the outer surface of the middle layer; the middle layer is made of alloy cast iron, and the strengthening layer is a chromium-based ceramic composite coating; the surface of the middle layer is compositely plated with chromium-based ceramic to form a strengthening layer, so that the screw rod is high in strength, not easy to damage and long in service life.

Preferably, the bolt head and the bolt body are made of the same material as the screw rod; the bottom of the bolt head is provided with an elastic washer; the elastic washer is made of rubber material; the bolt head, the bolt body and the screw rod are high in strength, not prone to damage and long in service life.

The utility model discloses an useful part lies in:

1. the utility model discloses set up fixed establishment, when the whole length of bolt is increased to needs, only need insert the connecting rod in the connecting hole, then through the straight-bar extrusion U-shaped board downwards for during the inserted bar inserts the jack, alright in order to realize the fixed to the connecting rod, make the screw rod fix the bottom at the shank of bolt, make the whole length of bolt increase, thereby improved the suitability of this kind of bolt.

2. The utility model discloses a set up push pedal and magnet for the straight-bar is in the in-process of downstream, and the push pedal will be in the same place with magnet absorption, can realize the fixed to the straight-bar, makes the inserted bar insert in the jack always, is favorable to improving the fixed effect to the screw rod.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic partial cross-sectional view illustrating a structure according to a first embodiment;

FIG. 2 is a schematic cross-sectional view of a screw according to an embodiment;

FIG. 3 is a schematic perspective view of a U-shaped plate according to an embodiment;

FIG. 4 is an enlarged view of a portion of the area A in FIG. 1;

fig. 5 is a drawing of the second embodiment.

In the figure: 1. a bolt head; 2. a bolt body; 3. a screw; 4. a connecting rod; 5. a U-shaped plate; 6. a matching block; 7. inserting a rod; 8. a first board; 9. a straight rod; 10. pushing the plate; 11. a magnet; 12. a spring; 13. an intermediate layer; 14. a strengthening layer; 15. an elastic washer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

Referring to fig. 1 to 4, a breakage-resistant high-strength bolt includes a bolt head 1, a bolt body 2, and a screw 3; the top end of the bolt body 2 is fixedly connected with the bolt head 1, and the bottom end of the bolt body is connected with the screw rod 3 through a fixing mechanism; the fixing mechanism comprises a connecting rod 4, a U-shaped plate 5, a matching block 6 and an inserting rod 7; the connecting rod 4 is fixedly connected to the top end of the screw rod 3; the bottom end of the bolt body 2 is provided with a connecting hole; the connecting rod 4 is in clearance fit with the connecting hole; a cavity is arranged inside the bolt body 2; the U-shaped plate 5 is connected in the cavity in a sliding manner; the cavity is also internally connected with two first plates 8 in a sliding manner, and the two first plates 8 are symmetrically arranged at two sides of the connecting hole; the matching block 6 is fixedly connected to one side of a first plate 8, and the inserting rod 7 is fixedly connected to the other side of the first plate 8; the surface of the connecting rod 4 is provided with a jack, and the inserting rod 7 is in clearance fit with the jack; the top end of the bolt head 1 is penetrated and connected with a straight rod 9 in a sliding manner, and the bottom end of the straight rod 9 is fixedly connected to the top of the U-shaped plate 5; when the bolt works, when the overall length of the bolt needs to be increased, only the connecting rod 4 at the top end of the screw rod 3 needs to be inserted into the connecting hole at the bottom of the bolt body 2, then the U-shaped plate 5 is downwards extruded through the straight rod 9, so that the U-shaped plate 5 slides downwards along the cavity, and further the bottom of the U-shaped plate 5 extrudes the matching block 6, so that the two matching blocks 6 move oppositely, and then the matching block 6 drives the first plate 8 and the inserting rod 7 to move towards the direction of the inserting hole, so that the inserting rod 7 is inserted into the inserting hole, the connecting rod 4 can be fixed, the screw rod 3 is fixed at the bottom end of the bolt body 2, the overall length of the bolt is increased, and the applicability of the bolt is improved; after the inclined plane of the U-shaped plate 5 leaves the inclined plane of the matching block 6, the vertical surface of the U-shaped plate 5 is contacted with the vertical surface of the matching block 6, and the matching block 6 can be prevented from returning.

The top end of the straight rod 9 is sleeved and fixedly connected with a push plate 10; a magnet 11 is fixedly connected to the top of the bolt head 1 at the corresponding position of the push plate 10; during operation, through setting up push pedal 10 and magnet 11 for straight-bar 9 is in the in-process of downstream, and push pedal 10 will be in the same place with magnet 11 absorption (push pedal 10 is made by iron material), can realize fixed to straight-bar 9, is favorable to improving the fixed effect to screw rod 3.

A chamfer is arranged at one side of the bottom of the U-shaped plate 5 close to the matching block 6; a chamfer is also arranged at one side of the top of the matching block 6 close to the U-shaped plate 5, and the U-shaped plate 5 and the matching block 6 are in a sliding matching state; during operation, the bottom of the U-shaped plate 5 and the top of the matching block 6 are provided with chamfers, the chamfers are right-angle chamfers, the chamfers are also equal, and the matching block 6 can move in the horizontal direction after the matching block 6 of the U-shaped plate 5 is extruded.

A spring 12 is fixedly connected to one side of the first plate 8 far away from the matching block 6, and the other end of the spring 12 is fixedly connected to the inner wall of the cavity; during operation, through setting up spring 12, be convenient for realize reseing to a board 8, and then when dismantling screw rod 3, U-shaped plate 5 upwards moves to leave cooperation piece 6, through the elasticity of spring 12, will make inserted bar 7 reset, just can take out connecting rod 4 from the connecting hole this moment, realize the separation to screw rod 3 and bolt body 2.

The screw 3 consists of an intermediate layer 13 and a reinforcing layer 14, and the reinforcing layer 14 is fixedly connected to the outer surface of the intermediate layer 13; the intermediate layer 13 is made of alloy cast iron, and the strengthening layer 14 is a chromium-based ceramic composite plating layer; when the screw rod works, the surface of the middle layer 13 is plated with the strengthening layer 14 through the chromium-based ceramic composite plating, so that the screw rod 3 is high in strength, not easy to damage and long in service life.

The bolt head 1, the bolt body 2 and the screw rod 3 are made of the same material; the bottom of the bolt head 1 is provided with an elastic washer 15; the elastic washer 15 is made of a rubber material; during operation, the bolt head 1, the bolt body 2 and the screw rod 3 are made of the same material, so that the bolt head 1, the bolt body 2 and the screw rod 3 are high in strength, not prone to damage and long in service life, and after the bolt head 1 is in contact with the surface of the rack, friction is increased through the elastic washer 15, and a certain anti-loosening effect is achieved.

Example two

Referring to fig. 5, as another embodiment of the present invention, in the first comparative example, the strengthening layer 14 can also be made of titanium alloy material; when the reinforcing layer 14 is used, the titanium alloy is high in strength, good in corrosion resistance and high in heat resistance, and the bolt head 1, the bolt body 2 and the screw 3 are high in strength, not prone to damage and long in service life.

The working principle is as follows: when the overall length of the bolt needs to be increased, the connecting rod 4 at the top end of the screw rod 3 is only required to be inserted into the connecting hole at the bottom of the bolt body 2, then the straight rod 9 downwards extrudes the U-shaped plate 5, the U-shaped plate 5 slides downwards along the cavity, the bottom of the U-shaped plate 5 extrudes the matching block 6, the two matching blocks 6 move in opposite directions, then the matching block 6 drives the first plate 8 and the inserting rod 7 to move towards the direction of the inserting hole, the inserting rod 7 is inserted into the inserting hole, the connecting rod 4 can be fixed, the screw rod 3 is fixed at the bottom end of the bolt body 2, the overall length of the bolt is increased, and the applicability of the bolt is improved; after the inclined surface of the U-shaped plate 5 leaves the inclined surface of the matching block 6, the vertical surface of the U-shaped plate 5 is contacted with the vertical surface of the matching block 6, so that the matching block 6 can be prevented from retreating; by arranging the push plate 10 and the magnet 11, in the downward movement process of the straight rod 9, the push plate 10 and the magnet 11 are adsorbed together (the push plate 10 is made of an iron material), so that the straight rod 9 can be fixed, and the fixing effect on the screw rod 3 is improved; through setting up spring 12, be convenient for realize reseing to a board 8, and then when dismantling screw rod 3, U-shaped plate 5 upwards moves to leave cooperation piece 6, through the elasticity of spring 12, will make the inserted bar 7 reset, just can take out connecting rod 4 from the connecting hole this moment, realize the separation to screw rod 3 and the body of bolt 2.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides an anti destruction high strength bolt which characterized in that: comprises a bolt head (1), a bolt body (2) and a screw rod (3); the top end of the bolt body (2) is fixedly connected with the bolt head (1), and the bottom end of the bolt body is connected with the screw rod (3) through a fixing mechanism; the fixing mechanism comprises a connecting rod (4), a U-shaped plate (5), a matching block (6) and an inserting rod (7); the connecting rod (4) is fixedly connected to the top end of the screw rod (3); the bottom end of the bolt body (2) is provided with a connecting hole; the connecting rod (4) is in clearance fit with the connecting hole; a cavity is arranged inside the bolt body (2); the U-shaped plate (5) is connected in the cavity in a sliding manner; the cavity is also internally connected with two first plates (8) in a sliding manner, and the two first plates (8) are symmetrically arranged at two sides of the connecting hole; the matching block (6) is fixedly connected to one side of a first plate (8), and the inserted rod (7) is fixedly connected to the other side of the first plate (8); the surface of the connecting rod (4) is provided with a jack, and the inserting rod (7) is in clearance fit with the jack; the top end of the bolt head (1) penetrates through and is connected with a straight rod (9) in a sliding mode, and the bottom end of the straight rod (9) is fixedly connected to the top of the U-shaped plate (5).

2. A breakage resistant high strength bolt as claimed in claim 1, wherein: the top end of the straight rod (9) is sleeved and fixedly connected with a push plate (10); and the top of the bolt head (1) is fixedly connected with a magnet (11) at the corresponding position of the push plate (10).

3. A breakage resistant high strength bolt as claimed in claim 2, wherein: a chamfer is arranged at one side of the bottom of the U-shaped plate (5) close to the matching block (6); the top of the matching block (6) is also provided with a chamfer angle at one side close to the U-shaped plate (5), and the U-shaped plate (5) and the matching block (6) are in sliding fit.

4. A breakage resistant high strength bolt as claimed in claim 3, wherein: one side of the first plate (8) far away from the matching block (6) is fixedly connected with a spring (12), and the other end of the spring (12) is fixedly connected with the inner wall of the cavity.

5. The collapse resistant high strength bolt of claim 4 wherein: the screw (3) consists of an intermediate layer (13) and a strengthening layer (14), and the strengthening layer (14) is fixedly connected to the outer surface of the intermediate layer (13); the intermediate layer (13) is made of alloy cast iron, and the strengthening layer (14) is a chromium-based ceramic composite coating.

6. A breakage resistant high strength bolt as claimed in claim 5, wherein: the bolt head (1), the bolt body (2) and the screw rod (3) are made of the same material; the bottom of the bolt head (1) is provided with an elastic washer (15); the elastic washer (15) is made of a rubber material.