CN216951196U

CN216951196U - Claw bolt

Info

Publication number: CN216951196U
Application number: CN202221261875.3U
Authority: CN
Inventors: 杜思聪; 宋立彬; 陈龙; 郭建科; 李翰文
Original assignee: Hebei College of Industry and Technology
Current assignee: Hebei Rosen Decoration Engineering Co ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-07-12
Anticipated expiration: 2032-05-25

Abstract

The utility model provides a claw bolt which comprises a bolt head, a first stud and a nut, wherein a first groove is formed in the peripheral wall of one end, far away from the bolt head, of the first stud; the nut is detachably arranged at one end of the first stud, which is provided with the jaw assembly. According to the claw bolt, the first assembly capable of elastically stretching and retracting is arranged on the first stud, so that a nut does not need to be screwed on the claw bolt in the using process, the claw bolt is convenient to use, the time is saved, the construction period is shortened, and the problem of bolt connection failure caused by the fact that the nut falls off due to various reasons in long-time use is solved.

Description

Claw bolt

Technical Field

The utility model relates to the technical field of fasteners, in particular to a claw bolt.

Background

The bolt is a mechanical part and is a cylindrical threaded fastener matched with a nut. The fastening piece consists of a head part and a screw (a cylinder with external threads), and the purpose of connecting and fastening two parts is achieved by enabling a bolt to penetrate through the two parts with through holes and screwing the two parts by a nut.

The bolt is widely applied to mechanical production, the bolt is matched with a nut to be used under most conditions, and the nut is easy to loosen and fall off due to various reasons when the bolt is used for a long time, so that the bolt connection fails. In addition, the nuts need to be screwed after the bolts are installed, so that time and labor are wasted, and the construction period is prolonged virtually.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a claw bolt, so as to improve the convenience of use.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

a claw bolt comprises a bolt head, a first stud and a nut; a first groove is formed in the peripheral wall of one end, far away from the screw head, of the first stud, a jaw assembly is arranged in the first groove in a sliding mode, a first elastic piece is arranged between the jaw assembly and the bottom of the first groove, and due to the pushing of the first elastic piece, the jaw assembly extends out of the first groove along the radial direction of the first stud; the nut is detachably mounted at one end of the jaw assembly on the first stud.

Furthermore, the first grooves are arranged along the circumferential direction of the first stud at intervals, and the jaw assemblies are arranged in one-to-one correspondence with the first grooves.

Furthermore, one of the first stud and the nut is provided with a thread counter bore, the other stud is provided with a second stud, the rotating directions of the threads on the first stud and the second stud are the same, and the nut is installed on the first stud because the second stud is screwed into the thread counter bore.

Furthermore, an accommodating groove is formed at one end, close to the first stud, of the nut, and the side wall of the accommodating groove pushes the jaw assembly back into the first groove due to the fact that the nut is installed on the first stud.

Furthermore, one end of the first stud provided with the clamping jaw assembly is provided with the threaded counter bore, and the bottom of the accommodating groove extends towards the direction of the first stud to form the second stud.

Further, the jaw assembly comprises a first sliding section and a second sliding section; the first sliding section is arranged in the first groove in a sliding manner; the first sliding section is provided with a second groove, the second sliding section is arranged in the second groove in a sliding mode, a second elastic piece is arranged between the second sliding section and the bottom of the second groove, and the second sliding section extends out of the second groove in the radial direction of the first stud along the pushing direction of the second elastic piece.

Further, a portion of the second sliding section extending out of the second groove is formed with a guiding inclined surface, and the guiding inclined surface extends outwards along a radial direction of the first stud from an end close to the nut to an end close to the first stud.

Further, the first groove and/or the second groove are/is a T-shaped groove; the first sliding section is in a T shape matched with the first groove, and/or the second sliding section is in a T shape matched with the second groove.

Compared with the prior art, the utility model has the following advantages:

according to the claw bolt, the claw assembly capable of elastically stretching and retracting is arranged on the first stud, so that the claw bolt does not need to be matched with a nut for use in the using process, the claw bolt is convenient to use, the nut does not need to be screwed, the time is saved, the construction period is shortened, and the problem of bolt connection failure caused by loosening and falling of the nut due to various reasons in long-time use can be prevented.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic overall structural view of a claw bolt according to an embodiment of the present invention;

FIG. 2 is a schematic view of a partial structure of a claw bolt according to an embodiment of the present invention;

FIG. 3 is a schematic view of a nut according to an embodiment of the present invention;

fig. 4 is a partially enlarged view of a in fig. 2.

Description of reference numerals:

1. a screw head; 2. a first stud; 201. a boss; 2011. a first groove; 2012. a threaded counter bore;

3. a nut; 301. accommodating grooves; 302. a second stud;

4. a jaw assembly; 401. a first sliding section; 4011. a second groove; 402. a second sliding section; 4021. a guide ramp; 5. a first elastic member; 6. a second elastic member.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inside", "outside", etc. appear, they are based on the orientation or positional relationship shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same item, but are instead intended to cover the same item.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in conjunction with specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The embodiment relates to a claw bolt which comprises a bolt head 1, a first stud 2 and a nut 3 in an integral structure. Wherein, be formed with first recess 2011 on the perisporium of the one end of screw head 1 is kept away from to first double-screw bolt 2, slide in first recess 2011 and be provided with jaw assembly 4, be provided with first elastic component 5 between the tank bottom of jaw assembly 4 and first recess 2011, and because of the top of first elastic component 5 pushes away, jaw assembly 4 radially stretches out first recess 2011 setting along first double-screw bolt 2. And the nut 3 is detachably arranged at one end of the first stud 2, which is provided with a jaw assembly 4.

Based on the above general description, as shown in fig. 1 to 4, in the present embodiment, the shape of the screw head 1 and the first stud 2 can be designed by referring to the shape of a bolt commonly used in the prior art, for example, the shape of the screw head 1 is hexagonal prism, the first stud 2 is cylindrical with a thread formed on the peripheral wall, one end of the first stud 2 is fixedly connected with the screw head 1, and the other end is detachably connected with the nut 3. In addition, the shape of the nut 3 is designed by referring to the end of the bolt or screw far away from the screw head 1 in the prior art, which may be a cylinder or a cone with a thread formed on the peripheral wall, and in this embodiment, the nut 3 is taken as an example of a cone with a thread formed on the peripheral wall.

The first recesses 2011 are spaced along the circumference of the first stud 2, and as a preferred embodiment, as shown in fig. 2, in the present embodiment, the first recesses 2011 are four spaced along the circumference of the first stud 2. In addition, in order to facilitate the connection between the first stud 2 and the nut 3, one of the first stud 2 and the nut 3 may be provided with a screw thread counterbore 2012, and the other is provided with a second stud 302, and preferably, the screw threads of the first stud 2 and the second stud 302 are in the same direction, and the nut 3 is installed on the first stud 2 because the second stud 302 is screwed into the screw thread counterbore 2012.

By making the screw thread directions of the first stud 2 and the second stud 302 the same, it is possible to prevent the connection failure between the first stud 2 and the nut 3 from occurring during screwing into the screw hole when the claw bolt is used to connect two parts, and to prevent the use of the claw bolt from being affected. Of course, the first stud 2 and the nut 3 are connected in a threaded manner only as a preferred embodiment, and in addition, detachable connection manners such as clamping, interference connection and the like can also be adopted for connection, for example, a clamping joint can be arranged on the first stud 2, and a clamping groove is arranged on the nut 3.

In specific implementation, in order to facilitate the installation of the nut 3, as shown in fig. 2, in this embodiment, a cylindrical boss 201 having a size slightly smaller than the diameter of the first stud 2 is formed at one end of the first stud 2 away from the screw head 1, and four first grooves 2011 are formed on the boss 201.

As shown in fig. 3, a receiving groove 301 is formed at one end of the nut 3 close to the first stud 2, a radial dimension of the receiving groove 301 is slightly larger than a diameter of the boss 201, the nut 3 is mounted on the first stud 2, the jaw assembly 4 is pushed back into the first recess 2011 by a side wall of the receiving groove 301, and the boss 201 and the jaw assembly 4 are both received in the receiving groove 301. A screw counter bore 2012 is arranged at the center of the boss 201, and a second stud 302 extends from the bottom of the accommodating groove 301 toward the stud, so that the second stud 302 is screwed into the screw counter bore 2012, thereby mounting the nut 3 on the first stud 2.

As shown in fig. 2 and 4, the jaw assembly 4 includes, as a preferred embodiment, a first sliding section 401 and a second sliding section 402. The first sliding section 401 is slidably disposed in the first groove 2011. And a second groove 4011 is formed on the first sliding section 401, the second sliding section 402 is slidably disposed in the second groove 4011, and a second elastic member 6 is disposed between the second sliding section 402 and the bottom of the second groove 4011, so that the second sliding section 402 extends out of the second groove 4011 along the radial direction of the first stud 2 due to the pushing of the second elastic member 6. By providing the jaw assembly 4 with a first sliding section 401 and a second sliding section 402, it is advantageous to further increase the stability of the jaw bolt during operation.

In addition, in order to facilitate the use of the claw bolt and the installation of the nut 3 on the first stud 2, as shown in fig. 2, a guiding inclined plane 4021 is formed at a portion of the second sliding section 402 extending out of the second groove 4011, and the guiding inclined plane 4021 extends outward in the radial direction of the first stud 2 from an end close to the nut 3 to an end close to the first stud 2, and in the process of installing the nut 3, as the nut 3 moves toward the first stud 2, the nut 3 can push against the guiding inclined plane 4021, so that the second sliding section 402 slides into the second groove 4011, and the first sliding section 401 slides into the first groove 2011.

As a preferred embodiment, in this embodiment, the first recess 2011 and the second recess 4011 are both T-shaped recesses, and the first sliding section 401 and the second sliding section 402 are respectively T-shaped to fit with the first recess 2011 and the second recess 4011. Of course, it is only an embodiment that the first indentation 2011 and the second indentation 4011 are both T-shaped grooves, and in addition, only the first indentation 2011 or the second indentation 4011 may be T-shaped grooves, for example, the first indentation 2011 may be a T-shaped groove, the second indentation 4011 may be an indentation with another shape, or the first indentation 2011 may be an indentation with another shape, and the second indentation 4011 may be a T-shaped groove. In specific implementation, the first groove 2011 and the second groove 4011 may be rectangular parallelepiped, cylindrical, and the like, and at this time, the first sliding section 401 and the second sliding section 402 may be rectangular parallelepiped or cylindrical respectively adapted to the first groove 2011 and the second groove 4011, so that the first sliding section 401 can slide in the first groove 2011, and the second sliding section 402 can slide in the second groove 4011.

The claw bolt is used by installing the nut 3 on the first stud 2 before use, and then in use, by passing the claw bolt through the through holes on the two parts to be fastened and then unscrewing the nut 3 from the first stud 2, the first sliding section 401 protrudes out of the first recess 2011 under the action of the first elastic member 5, and the second sliding section 402 protrudes out of the second recess 4011 under the action of the second elastic member 6, so that the two parts to be fastened are fastened. The length of the first stud 2 can be specifically designed according to the thickness of a part to be fastened, and the part to be fastened can be clamped between the screw head 1 and the second sliding section 402.

In addition, the first elastic member 5 and the second elastic member 6 in the present embodiment can be springs commonly used in the prior art.

The claw bolt of this embodiment through be equipped with can elastically flexible jack catch subassembly 4 on first double-screw bolt 2, reaches the purpose of fastening to the part that needs the fastening, then need not to cooperate the nut to use in claw bolt use, facilitates the use, need not to screw up the nut, saves time, reduction of erection time to can prevent under long-time use, the nut is because various reasons are not hard up to drop, leads to the emergence of bolted connection inefficacy problem.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A claw bolt characterized in that:

comprises a screw head (1), a first stud (2) and a screw cap (3);

a first groove (2011) is formed in the peripheral wall of one end, away from the screw head (1), of the first stud (2), a jaw assembly (4) is arranged in the first groove (2011) in a sliding mode, a first elastic piece (5) is arranged between the jaw assembly (4) and the bottom of the first groove (2011), and the jaw assembly (4) extends out of the first groove (2011) along the radial direction of the first stud (2) due to the pushing of the first elastic piece (5);

the nut (3) is detachably mounted at one end of the jaw component (4) arranged on the first stud (2).

2. The claw bolt according to claim 1, wherein:

the first grooves (2011) are arranged along the circumferential direction of the first stud (2) at intervals, and the jaw assemblies (4) are arranged in one-to-one correspondence with the first grooves (2011).

3. The claw bolt of claim 1, wherein:

the first stud (2) and the nut (3) are provided with a thread counter bore (2012) on one, and a second stud (302) is arranged on the other, the screwing direction of the threads on the first stud (2) and the second stud (302) is the same, so that the second stud (302) is screwed into the thread counter bore (2012), and the nut (3) is installed on the first stud (2).

4. The claw bolt according to claim 3, wherein:

nut (3) are close to the one end of first double-screw bolt (2) is formed with holding tank (301), because of nut (3) install extremely on first double-screw bolt (2), the lateral wall of holding tank (301) will jack catch subassembly (4) support and push back in first recess (2011).

5. The claw bolt of claim 4, wherein:

the one end that first double-screw bolt (2) was equipped with jaw assembly (4) is provided with screw thread counter bore (2012), the tank bottom of holding tank (301) to the direction of first double-screw bolt (2) is stretched out and is had second double-screw bolt (302).

6. The claw bolt according to any one of claims 1-5, wherein:

the jaw assembly (4) comprises a first sliding section (401) and a second sliding section (402);

the first sliding section (401) is arranged in the first groove (2011) in a sliding mode;

be formed with second recess (4011) on first slip section (401), second slip section (402) slide and locate in second recess (4011), and in second slip section (402) with be provided with second elastic component (6) between the tank bottom of second recess (4011), because of the top of second elastic component (6) pushes away, second slip section (402) are followed the radial of first double-screw bolt (2), stretch out second recess (4011) sets up.

7. The claw bolt of claim 6, wherein:

the part of the second sliding section (402) extending out of the second groove (4011) is formed with a guiding inclined surface (4021), and the guiding inclined surface (4021) extends outwards along the radial direction of the first stud (2) from one end close to the nut (3) to one end close to the first stud (2).

8. The claw bolt according to claim 6, wherein:

the first recess (2011) and/or the second recess (4011) is a T-shaped slot;

the first sliding section (401) is in a T shape matched with the first groove (2011), and/or the second sliding section (402) is in a T shape matched with the second groove (4011).