CN210686606U

CN210686606U - Canned type welding bolt

Info

Publication number: CN210686606U
Application number: CN201921519391.2U
Authority: CN
Inventors: 李小川
Original assignee: Chongqing Mingyi Machinery Parts Co ltd
Current assignee: Chongqing Mingyi Machinery Parts Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-06-05
Anticipated expiration: 2029-09-12

Abstract

The utility model discloses a canned type welding bolt, including the annular triangle of bolt head arch, chamfer a has been seted up to the bolt head bottom outside, the hexagon socket head rotation groove has been seted up in the middle of the bolt head bottom, be equipped with antirust coat a around the hexagon socket head rotation groove outside, chamfer b has been seted up to the bolt head top outside, bolt head top inboard is equipped with annular triangle arch, annular triangle arch outside bottom and bolt head have seted up chamfer d, annular triangle arch inside bottom and bolt head have seted up chamfer d, bolt head top middle is equipped with the screw rod, screw rod bottom and bolt head have seted up chamfer e, the screw rod is equipped with antirust coat b all around, the screw rod top is seted up threadedly; this canned type welding bolt forms a confined protective layer through annular triangle arch and part nature, has reduced the contact of external world with the part is inside, has increased the leakproofness of welding bolt and part, can prevent through the antirust coat on interior hexagonal rotation groove and the screw rod that welding screw from rustting in the transportation.

Description

Canned type welding bolt

Technical Field

The utility model relates to a welding bolt technical field specifically is a canned type welding bolt.

Background

With the development of society, the automobile industry is developed vigorously and gradually enters every family, and welding bolts are often used on automobile body parts;

the bosses of the traditional welding bolt are staggered at intervals of 120 degrees, and are bonded with the vehicle body part after being melted when being welded with the vehicle body part, but obvious gaps are left among the bosses after welding, and external substances including water and dust permeate into the inner side of the bolt through the gaps;

in order to solve the problems, innovation needs to be carried out on the basis of the original welding bolt.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a canned type welding bolt, have that the welding leakproofness is good, the fastening bolt of being convenient for, increase the rust resisting property of bolt, connect reliable advantage, solved prior art's problem.

In order to achieve the above object, the utility model provides a following technical scheme: a sealing type welding bolt comprises a bolt head, a chamfer angle a, a chamfer angle b, a chamfer angle c, a screw rod, a screw thread, an annular triangular protrusion, a chamfer angle d, a chamfer angle e, an inner hexagonal rotating groove, an anti-rust layer a and an anti-rust layer b, wherein the chamfer angle a is formed in the outer side of the bottom of the bolt head, the inner hexagonal rotating groove is formed in the middle of the bottom of the bolt head, the anti-rust layer a is arranged on the periphery of the outer side of the inner hexagonal rotating groove, the chamfer angle b is formed in the outer side of the top of the bolt head, the annular triangular protrusion is arranged on the inner side of the top of the bolt head and is forged with the bolt head into a whole, the chamfer angle d is formed in the bottom of the outer side of the annular triangular protrusion and is formed with the bolt head, the chamfer angle d is formed in the bottom of the inner side, the periphery of the screw is provided with an anti-rust layer b, and threads are arranged above the screw.

Preferably, the minimum allowable chamfer radius of the chamfer a is 0.3 mm, the maximum allowable chamfer radius of the chamfer b is 0.7 mm, the maximum allowable chamfer radius of the chamfer c and the chamfer d is 0.2 mm, and the minimum allowable chamfer radius of the chamfer e is 0.3 mm.

Preferably, the horizontal angle between the annular triangular protrusion and the bolt head is 60 degrees, the deviation is plus or minus 5 degrees, the horizontal distance between the top of the annular triangular protrusion and the top of the bolt head is 0.9-1.25, the horizontal diameter of the annular triangular protrusion is 10 mm, the upper deviation is +0.25 mm, and the lower deviation is 0 mm.

Preferably, the thread specification is M6-6g, and the maximum allowable distance between the bottom of the thread and the top of the bolt head is 4.25 mm.

Preferably, the vertical distance of the bolt head is 2.5 mm, the upper deviation is 0 mm, the lower deviation is-0.25, the horizontal distance between the top of the bolt head and the top of the screw rod is 20 mm, and the deviation is plus or minus 0.42 mm.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model relates to a canned type welding bolt rotates the groove through rotating the interior hexagonal and is convenient for welding bolt and part connection, after welding bolt and part welding, through the protruding confined protective layer that forms naturally with the part of annular triangle, has reduced the contact of external and part inside, has increased the leakproofness of welding bolt and part, rotates the antirust coat on groove and the screw rod through the interior hexagonal and can prevent that welding screw from rustting in the transportation, has increased welding screw's corrosion resistance.

Drawings

Fig. 1 is an overall schematic view of a sealing type welding bolt according to the present invention;

fig. 2 is a partial cross-sectional view of an annular triangular projection of a sealing type welding bolt of the present invention;

fig. 3 is a cross-sectional view of a bolt head portion of the sealed welding bolt of the present invention.

The figures are labeled as follows: 1 bolt head, 2 chamfers a, 3 chamfers b, 4 chamfers c, 5 screw rods, 6 threads, 7 annular triangular protrusions, 8 chamfers d, 9 chamfers e, 10 inner hexagonal rotating grooves, 11 antirust layers a and 12 antirust layers b.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below 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, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a sealing type welding bolt includes a bolt head 1, a chamfer angle a2, a chamfer angle b3, a chamfer angle c4, a screw 5, a thread 6, an annular triangular protrusion 7, a chamfer angle d8, a chamfer angle e9, an inner hexagonal rotation groove 10, an anti-rust layer a11 and an anti-rust layer b12, wherein the outer side of the bottom of the bolt head 1 is provided with the chamfer angle a2, the middle of the bottom of the bolt head 1 is provided with the inner hexagonal rotation groove 10, the periphery of the outer side of the inner hexagonal rotation groove 10 is provided with the anti-rust layer a11, the outer side of the top of the bolt head 1 is provided with the chamfer angle b3, the vertical distance of the bolt head 1 is 2.5 mm, the upper deviation is 0 mm, the lower deviation is-0.25, the inner side of the top of the bolt head 1 is provided with the annular triangular protrusion 7, the annular triangular protrusion 7 and the bolt head 1 are forged into a whole, the horizontal diameter of the annular triangular protrusion 7 is 10, the deviation is within plus or minus 5 degrees, the horizontal distance between the top of the annular triangular protrusion 7 and the top of the bolt head 1 is 0.9-1.25, the bottom of the outer side of the annular triangular protrusion 7 and the bolt head 1 is provided with a chamfer angle d8, the bottom of the inner side of the annular triangular protrusion 7 and the bolt head 1 are provided with a chamfer angle d8, the middle of the top of the bolt head 1 is provided with a screw 5, the screw 5 and the bolt head 1 are forged into a whole, the horizontal distance between the top of the bolt head 1 and the top of the screw 5 is 20 mm, the deviation is within plus or minus 0.42 mm, the bottom of the screw 5 and the bolt head 1 are provided with a chamfer angle e9, the periphery of the screw 5 is provided with an anti-rust layer b12, a thread 6 is arranged above the screw 5, the specification of the thread 6.

The working principle is as follows: the utility model relates to a canned type welding bolt, accessible allen key rotates groove 10 rotation with the interior hexagonal in the bolt head 1 during use, make screw thread 6 and part fixed connection on the welding bolt, then be in the same place annular triangle arch 7 and part welding, annular triangle arch 7 forms a confined protective layer with the part nature, not only make welding screw and part connection fastening more, and reduce the contact of part inside and outside air, welding screw's leakproofness has been increased, antirust coat a11 on the interior hexagonal rotation groove 10 and antirust coat b12 on the screw rod 5 can prevent that welding screw from rustting in the transportation, welding screw's corrosion resistance has been increased.

It is clear that the invention is not restricted to the details of the above-described exemplary embodiments but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A canned type welding bolt which characterized in that: comprises a bolt head (1), a chamfer (a 2), a chamfer (b 3), a chamfer (c 4), a screw rod (5), a thread (6), an annular triangular bulge (7), a chamfer (d 8), a chamfer (e 9), an inner hexagonal rotation groove (10), an anti-rust layer a (11) and an anti-rust layer b (12), wherein the chamfer (a 2) is arranged on the outer side of the bottom of the bolt head (1), the inner hexagonal rotation groove (10) is arranged in the middle of the bottom of the bolt head (1), the anti-rust layer a (11) is arranged around the outer side of the inner hexagonal rotation groove (10), the chamfer (b 3) is arranged on the outer side of the top of the bolt head (1), the annular triangular bulge (7) is arranged on the inner side of the top of the bolt head (1), the annular triangular bulge (7) and the bolt head (1) are forged into a whole, the chamfer (d 8) is arranged on the outer side bottom, chamfer d (8) have been seted up with bolt head (1) to the inboard bottom of annular triangle arch (7), be equipped with screw rod (5) in the middle of bolt head (1) top, screw rod (5) are for forging integrative with bolt head (1), chamfer e (9) have been seted up with bolt head (1) to screw rod (5) bottom, screw rod (5) are equipped with antirust coat b (12) all around, screw rod (5) top is seted up screw thread (6).

2. The hermetically sealed weld bolt of claim 1, wherein: the horizontal angle between the annular triangular protrusion (7) and the bolt head (1) is 60 degrees, the deviation is within plus or minus 5 degrees, the horizontal distance between the top of the annular triangular protrusion (7) and the top of the bolt head (1) is 0.9-1.25, the horizontal diameter of the annular triangular protrusion (7) is 10 millimeters, the upper deviation is +0.25 millimeters, and the lower deviation is 0 millimeter.

3. The hermetically sealed weld bolt of claim 1, wherein: the thread (6) is in the specification of M6-6g, and the maximum allowable horizontal distance between the bottom of the thread (6) and the top of the bolt head (1) is 4.25 mm.

4. The hermetically sealed weld bolt of claim 1, wherein: the vertical distance of the bolt head (1) is 2.5 mm, the upper deviation is 0 mm, the lower deviation is-0.25, the horizontal distance between the top of the bolt head (1) and the top of the screw rod (5) is 20 mm, and the deviation is plus or minus 0.42 mm.