CN210599773U

CN210599773U - Novel big button head square neck bolt

Info

Publication number: CN210599773U
Application number: CN201921312509.4U
Authority: CN
Inventors: 竺建波; 钱耀国; 沈健狄; 李文斌
Original assignee: Ningbo Jinding Fastening Piece Co ltd
Current assignee: Ningbo Jinding Fastening Piece Co ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-05-22
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses a novel big button head square neck bolt, including the bolt mobile jib, the rear end of bolt mobile jib is provided with the button head, the rear end surface of button head is provided with assists rotary mechanism, the place ahead that the surface of bolt mobile jib is close to the button head is provided with square neck piece, square neck piece includes the second block of first block and concatenation mutually, the inboard surface of first block and second block all is provided with the magnet post, the inboard that the surface of bolt mobile jib is close to square neck piece is provided with spacing hole. The utility model relates to a novel big button head square neck bolt through being provided with assistance rotary mechanism, can assist the user to extract the bolt mobile jib or rotate out the bolt main part from the installation department, and is more comprehensive, through being provided with the square neck piece, the square neck piece is convenient for change to ensure going on of subsequent card income process.

Description

Novel big button head square neck bolt

Technical Field

The utility model relates to a bolt field, in particular to novel big button head square neck bolt.

Background

The big round head square neck bolt is characterized in that the head is made into a semi-spherical shape, one section of square neck is made below the head, one section of square hole is correspondingly made on the connected piece connected by the bolt, the bolt is inserted into the connected piece, and when the nut is screwed, the bolt cannot rotate along with the bolt due to the square neck, and the head of the bolt is smooth and is not easy to hook other objects. The big button head square neck bolt take out comparatively inconvenient after the installation, and then the square neck can't be changed, is difficult to cooperate the hole card of installation face after the deformation, is unfavorable for the reinforced going on, for this reason, we propose a novel big button head square neck bolt.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a novel big button head square neck bolt can effectively solve the problem in the background art.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows.

The utility model provides a novel big button head square neck bolt, includes the bolt mobile jib, the rear end of bolt mobile jib is provided with the button head, the rear end surface of button head is provided with assists rotary mechanism, the place ahead that the surface of bolt mobile jib is close to the button head is provided with the square neck piece, the square neck piece includes first block and the second block of splicing mutually, the inboard surface of first block and second block all is provided with the magnet post, the inboard that the surface of bolt mobile jib is close to the square neck piece is provided with spacing hole.

Preferably, the axis of bolt mobile jib passes the front end of button head and is the centre of a circle of face, be fixed connection between bolt mobile jib and the button head, the rear end outward appearance of button head is the arc surface shape of hunch-up, the place ahead that the surface of bolt mobile jib is close to the square neck piece is provided with the external screw thread, the external screw thread spiral coils in the surface of bolt mobile jib.

Preferably, help rotary mechanism including hiding the groove, stretching out the board, embedding board, activity groove and spacing bottom plate, hide the groove and be the rear end surface that square fluting was seted up in the button head, stretch out the attached inboard surface of hiding the groove of board, be fixed connection between the lower extreme of stretching out the board and the upper end of embedding board.

Preferably, be fixed connection between the lower extreme of embedding board and the upper end surface of spacing bottom plate, the activity groove is square groove, be swing joint between the surface of spacing bottom plate and the inner wall in activity groove, the thickness homogeneous phase of the thickness of board, embedding board and spacing bottom plate is the same.

Preferably, the shape size homogeneous phase of first block and second block, first block and second block are the symmetry in the surface of bolt mobile jib and arrange, first block is the regular hexagonal prism shape with the appearance after the second block concatenation, be the activity laminating between the outer surface of the inner wall of first block and second block and bolt mobile jib.

Preferably, the magnet post inlays in the inboard in spacing hole, be swing joint between magnet post and the spacing hole, be fixed connection between magnet post and first block and the second block, the bolt mobile jib is the iron material, swing contact between first block and the second block.

Compared with the prior art, the utility model discloses following beneficial effect has: the novel big-round-head square-neck bolt is provided with the assisting rotating mechanism, when the bolt main rod is screwed in and needs to be pulled out in the later period, the extension plate is pulled out from the inner side of the hidden groove by tools such as tweezers, the embedded plate is pulled out from the inner side of the movable groove, the limit bottom plate prevents the excessive pulling-out so that the embedded plate is separated from the inner side of the movable groove, then the protruding extension plate can assist a user to pull out the bolt main rod or rotate the bolt main body from the installation position, and is more comprehensive, the square-neck block is arranged, when the square-neck block is deformed and damaged during overlong time or secondary use, the first block is separated from the second block by applying external force, when the external force is greater than the adsorption force of the magnet column on the bolt main rod, the magnet column is pulled out from the inner side of the limit hole, namely the first block is separated from the second block, the magnet column is replaced after being taken out, and is reinserted into the, it is convenient to ensure the follow-up process of the clamping.

Drawings

Fig. 1 is the overall structure schematic diagram of the novel big round head square neck bolt of the utility model.

Fig. 2 is the local schematic diagram of the novel big round head square neck bolt of the utility model.

Fig. 3 is a cross-sectional view of the novel big round head square neck bolt of the utility model.

Fig. 4 is the utility model relates to a novel big button head square neck bolt's square neck piece is disassembled the schematic diagram.

In the figure: 1. a bolt main rod; 2. a round head; 3. an assisting rotation mechanism; 31. hiding the groove; 32. extending the plate; 33. a built-in plate; 34. a movable groove; 35. a limiting bottom plate; 4. a square neck block; 41. a first block; 42. a magnetic column; 43. a limiting hole; 44. a second block; 5. and (4) external threads.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-4, a novel large round head square neck bolt, including bolt mobile jib 1, the rear end of bolt mobile jib 1 is provided with button head 2, the rear end surface of button head 2 is provided with assists rotary mechanism 3, the place ahead that the surface of bolt mobile jib 1 is close to button head 2 is provided with square neck piece 4, square neck piece 4 includes first block 41 and the second block 44 of splicing mutually, the inboard surface of first block 41 and second block 44 all is provided with magnet post 42, the inboard that the surface of bolt mobile jib 1 is close to square neck piece 4 is provided with spacing hole 43.

The center shaft of the bolt main rod 1 penetrates through the front end of the round head 2 to serve as the center of a circle of a surface, the integrity is ensured, the bolt main rod 1 is fixedly connected with the round head 2, the outer surface of the rear end of the round head 2 is in an arched arc surface shape, an external thread 5 is arranged on the outer surface of the bolt main rod 1 close to the front of the square neck block 4, and the external thread 5 is spirally wound on the outer surface of the bolt main rod 1 to be convenient for being matched with a nut or a screw hole to fix the position; the auxiliary rotating mechanism 3 comprises a hidden groove 31, an extension plate 32, an embedded plate 33, a movable groove 34 and a limiting bottom plate 35, the hidden groove 31 is a square groove and is arranged on the outer surface of the rear end of the round head 2, the extension plate 32 is attached to the outer surface of the inner side of the hidden groove 31, the lower end of the extension plate 32 is fixedly connected with the upper end of the embedded plate 33, and the extension plate 32 is fixedly connected with the embedded plate 33; the lower end of the embedded plate 33 is fixedly connected with the outer surface of the upper end of the limit bottom plate 35, the movable groove 34 is a square groove, the outer surface of the limit bottom plate 35 is movably connected with the inner wall of the movable groove 34, the limit bottom plate 35 can move on the inner side of the movable groove 34, and the thicknesses of the extending plate 32, the embedded plate 33 and the limit bottom plate 35 are the same so as to ensure that the extending plate, the embedded plate 33 and the limit bottom plate 35 are not easy to loosen when moving on the inner side of the movable groove 34; the first block 41 and the second block 44 are the same in shape and size, the first block 41 and the second block 44 are symmetrically arranged on the outer surface of the bolt main rod 1, so that the first block 41 and the second block 44 are sleeved on the outer surface of the bolt main rod 1 in a relatively matched manner, the first block 41 and the second block 44 are spliced to form a regular hexagonal prism, and are stably clamped on a mounting surface, the inner walls of the first block 41 and the second block 44 are movably attached to the outer surface of the bolt main rod 1, so that the first block 41 and the second block 44 can be separated; magnet post 42 inlays in the inboard of spacing hole 43, is swing joint between magnet post 42 and the spacing hole 43, is fixed connection between magnet post 42 and first block 41 and the second block 44, prevents dropping of magnet post 42, and bolt mobile jib 1 is the iron material, ensures that magnet post 42 attracts, and swing contact between first block 41 and the second block 44 is comparatively laminated between the two.

It should be noted that, the utility model relates to a novel big round head square neck bolt, when using, the user after screwing in the bolt main rod 1, when later pulling out, the user pulls out the extension plate 32 from the inner side of the hidden groove 31 through the tools such as tweezers, the embedded plate 33 is pulled out from the inner side of the movable groove 34, the limit bottom plate 35 prevents the excessive pulling out to make the embedded plate 33 break away from the inner side of the movable groove 34, then the user can be assisted to the protruding extension plate 32 to pull out the bolt main rod 1 or rotate the bolt main body from the installation, more comprehensive, if the time is too long or the square neck block 4 is deformed and damaged during secondary use, the user applies external force to make the first block 41 separate from the second block 44, when being greater than the adsorption force of the magnet column 42 to the bolt main rod 1, the magnet column 42 is pulled out from the inner side of the limit hole 43, that is to separate the first block 41 from the second block 44, the magnet post 42 is replaced after being taken down, and the magnet post is inserted into the inner side of the limiting hole 43 again, so that convenience is achieved, and the follow-up clamping process is guaranteed.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. 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. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel big button head square neck bolt, includes bolt mobile jib (1), its characterized in that: the rear end of bolt mobile jib (1) is provided with button head (2), the rear end surface of button head (2) is provided with assists rotary mechanism (3), the place ahead that the surface of bolt mobile jib (1) is close to button head (2) is provided with square neck piece (4), square neck piece (4) include first block (41) and second block (44) of splicing mutually, the inboard surface of first block (41) and second block (44) all is provided with magnet post (42), the inboard that the surface of bolt mobile jib (1) is close to square neck piece (4) is provided with spacing hole (43).

2. The novel big button head square neck bolt of claim 1, characterized in that: the axis of bolt mobile jib (1) passes the front end of button head (2) and is the centre of a circle of face, be fixed connection between bolt mobile jib (1) and button head (2), the rear end outward appearance of button head (2) is the arc surface shape of hunch-up, the place ahead that the surface of bolt mobile jib (1) is close to square neck piece (4) is provided with external screw thread (5), external screw thread (5) spiral coils in the surface of bolt mobile jib (1).

3. The novel big button head square neck bolt of claim 1, characterized in that: assist rotary mechanism (3) including hiding into groove (31), stretch out board (32), embedded plate (33), activity groove (34) and spacing bottom plate (35), hide into groove (31) and be the rear end surface that square fluting was seted up in button head (2), stretch out board (32) and attach in the inboard surface of hiding into groove (31), be fixed connection between the lower extreme of stretching out board (32) and the upper end of embedded plate (33).

4. The novel big button head square neck bolt of claim 3, characterized in that: be fixed connection between the lower extreme of embedded plate (33) and the upper end surface of spacing bottom plate (35), activity groove (34) are square groove, be swing joint between the surface of spacing bottom plate (35) and the inner wall of activity groove (34), the thickness size homogeneous phase of stretching out board (32), embedded plate (33) and spacing bottom plate (35).

5. The novel big button head square neck bolt of claim 1, characterized in that: the shape size homogeneous phase of first block (41) and second block (44) is the same, first block (41) and second block (44) are the symmetry in the surface of bolt mobile jib (1) and arrange, the appearance after first block (41) and second block (44) concatenation is regular hexagonal prism shape, be the activity laminating between the outer surface of the inner wall of first block (41) and second block (44) and bolt mobile jib (1).

6. The novel big button head square neck bolt of claim 1, characterized in that: magnet post (42) inlay in the inboard in spacing hole (43), be swing joint between magnet post (42) and spacing hole (43), be fixed connection between magnet post (42) and first block (41) and second block (44), bolt mobile jib (1) is the iron material, swing joint between first block (41) and second block (44).