CN215058777U

CN215058777U - Fastening connecting piece

Info

Publication number: CN215058777U
Application number: CN202121754175.3U
Authority: CN
Inventors: 朱广伟; 刘春启
Original assignee: Henan Liang Ming Electronic Equipment Co ltd
Current assignee: Henan Liang Ming Electronic Equipment Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-12-07
Anticipated expiration: 2031-07-30

Abstract

The utility model belongs to the technical field of switch board frame attach, concretely relates to fastening connection spare, it includes the bolt, the bolt is connected with an extension nut, the extension nut includes connecting portion and is in the spacing portion of connecting portion one end department, polygon mouth has been seted up to spacing portion end department to be equipped with the silking that link up in connecting portion, make silking and bolted connection, it is connected through carriage bolt and extension nut, and the stand structural connection poor stability of having effectively solved C shape hem formula, the low yielding problem of intensity.

Description

Fastening connecting piece

Technical Field

The utility model belongs to the technical field of the switch board frame attach, concretely relates to fastening connection spare.

Background

The distribution cabinet frame is often installed by adopting an assembling mode, and has the advantages of convenient disassembly and assembly, low manufacturing cost of the process and convenient disassembly, transportation and storage when being installed by adopting the assembling mode.

At present the distribution cabinet frame when assembling, often adopt the stand structure of C shape hem formula for reduce cost to screw hole through seting up on single screw and crossbeam spare or the stand realizes assembling the effect of locking, but it is in the reality because fastening connection spare carries out locking connection for single screw and screw hole, has leaded to the stand structural stability of C shape hem formula poor, so that low yielding problem of joint strength.

SUMMERY OF THE UTILITY MODEL

The utility model provides a fastening connecting piece has simple structure, connects stable characteristics, has effectively solved the problem that exists in the current.

The utility model discloses a following technical scheme realizes:

the utility model provides a fastening and connecting piece, includes the carriage bolt, the carriage bolt is connected with a lengthened nut, lengthened nut includes connecting portion and is in the spacing portion of connecting portion one end department, polygon mouth has been seted up to spacing portion department to be equipped with the silkwork that link up in connecting portion, make silkwork and bolt fastening connection.

Preferably, the carriage bolt comprises a semicircular head of the head, and the bottom of the semicircular head is sequentially connected with a square part and a cylinder with an external thread.

Preferably, the other end of the connecting part is preset with a flange.

Preferably, the flange is of a chamfered configuration.

Preferably, the flange is of a step structure, and a chamfer is preset on the step structure.

Through the technical scheme, the utility model discloses possess following beneficial effect:

1. under the connection effect of screw thread and carriage bolt for the operator can insert the polygon mouth through with the help of external spanner, and under screwing extension nut, accomplish the locking or the dismantlement of extension nut and carriage bolt, with this guarantee that the interior knot of C shape hem spare is followed and the bottom surface between be connected stably, and further reinforcing joint strength avoids leading to the problem of bearing deformation because of drawing.

2. Under the action of the flange, the convenient assembly of the fastening connecting piece is further improved, the extrusion force of the connecting part is reduced, and the characteristic of long service life of connecting parts is achieved.

Drawings

Fig. 1 is a schematic structural view of the fastening connector of the present invention;

FIG. 2 is a schematic view of the structure of the present invention in connection with the frame;

FIG. 3 is a schematic structural view of the extension nut of the present invention;

FIG. 4 is a schematic view of a partial top view of the frame of the present invention;

fig. 5 is a schematic structural view of an extension nut in the second embodiment of the present invention;

fig. 6 is a schematic structural view of a bolt according to a second embodiment of the present invention.

In the figure: 1. a carriage bolt; 101. a semicircular head; 102. a square body; 103. a cylinder; 2. a cross member; 3. lengthening the nut; 301. a connecting portion; 302. a limiting part; 303. a polygonal mouth; 304. silk thread; 305. a flange; 4. a column; 5. a non-standard bolt; 501. a semicircular head; 502. a polygonal body; 503. a cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 work belong to the protection scope of the present invention.

Example one

Referring to FIGS. 1-4: the utility model provides a fastening connection spare, includes the bolt, the bolt adopts for carriage bolt 1 in this embodiment, carriage bolt 1 includes the semicircle head 101 of head, semicircle head 101 bottom has connected gradually square body 102 and has the cylinder 103 of external screw thread, the cylinder 103 and the extended nut 3 of external screw thread are connected.

The lengthened nut 3 comprises a connecting portion 301 and a limiting portion 302 located at one end of the connecting portion 301, a polygonal opening 303 is formed in the end of the limiting portion 302, the polygonal opening 303 is a regular hexagon, specifically an inner hexagonal opening and is connected with an external wrench, a through thread 304 is arranged in the connecting portion 301, the thread 304 is connected with the cylinder 103, and the lengthened nut 3 and the carriage bolt 1 are disassembled and locked under the external wrench.

The flange 305 is preset at the other end of the connecting part 301, the flange 305 is of a step structure, and a chamfer is preset on the step structure, so that under the action of the flange 305, the extrusion force at the connecting part is reduced, and the effect of prolonging the service life of the connecting part is achieved.

Chamfers are arranged at two ends of the lengthened nut 3 and are arranged at the polygonal opening 303 and the thread 304, so that the lengthened nut 3 and the carriage bolt 1 can be assembled conveniently.

In this embodiment, when this fastening connection spare used, the operator can insert in the interior hexagonal mouth through with the help of external spanner, and screw thread 304 and carriage bolt 2 locking or dismantlement in the messenger extension nut 1 under twisting extension nut 3 are connected, with this carry out locking connection with stand 4 and crossbeam spare 2 of C shape hem formula, the realization is guaranteed the interior knot of C shape hem spare and is followed the stability of being connected between the bottom surface, and further reinforcing joint strength avoids leading to the problem of bearing deformation because of the tensile, simultaneously under removable extension nut 1 effect, can effectively avoid adopting the easy smooth silk of single screw hole, so that arouse the problem that switch board frame can't be disassembled or installed.

Example two

Referring to fig. 4-5, the present embodiment is different from the first embodiment in that: the bolt is a non-standard bolt 5, the non-standard bolt 5 comprises a head part which is a semi-circular head 501, the semi-circular head 501 is sequentially connected with a polygonal body 502 and a cylinder 503 with external threads, and the non-standard bolt 5 is placed under the polygonal body 502 to be limited by the corresponding cross beam 2, so that an operator can screw the lengthened nut 3 by an external wrench to assemble the fastening and connecting piece.

The flange 305 is a chamfer structure, so that the extrusion force at the joint can be reduced under a single chamfer, and the effect of prolonging the service life of the part is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A fastening connector, characterized by: including carriage bolt (1), carriage bolt (1) is connected with a lengthened nut (3), lengthened nut (3) are including connecting portion (301) and spacing portion (302) that are located connecting portion (301) one end department, polygon mouth (303) have been seted up to spacing portion (302) end department to be equipped with wire (304) that link up in connecting portion (301), make wire (304) and carriage bolt (1) fastening connection.

2. The fastening connection of claim 1, wherein: the carriage bolt (1) comprises a semicircular head (101) of the head, and the bottom of the semicircular head (101) is sequentially connected with a square body (102) and a cylinder (103) with external threads.

3. The fastening connection of claim 1, wherein: a flange (305) is preset at the other end of the connecting part (301).

4. The fastening connection of claim 3, wherein: the flange (305) is of a chamfered configuration.

5. The fastening connection of claim 3, wherein: the flange (305) is of a step structure, and a chamfer is preset on the step structure.