CN101363469A - Hollow bolt with pad - Google Patents
Hollow bolt with pad Download PDFInfo
- Publication number
- CN101363469A CN101363469A CN 200810063095 CN200810063095A CN101363469A CN 101363469 A CN101363469 A CN 101363469A CN 200810063095 CN200810063095 CN 200810063095 CN 200810063095 A CN200810063095 A CN 200810063095A CN 101363469 A CN101363469 A CN 101363469A
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- China
- Prior art keywords
- bar portion
- shaped
- bolt
- tail end
- clout
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Abstract
The invention discloses a hollow bolt with a gasket, which comprises a bolt body which is provided with a siamesed rod body and a tail end body; the head of the rod body is provided with screw thread bodies in the shape of an uneven tooth socket along the radial direction and the effective length of the screw thread body is at least equal to the value of the diameter of the rod body; the radial center of the bolt body is provided with at least one seamless pipe cavity formed by cold upsetting and the cavity penetrates through the shaft ends of the rod body and the tail end body; the bolt body is also provided with a gasket body which is arranged between the rod body and the tail end body. A round hole cavity is arranged on the axle center of the bolt body and the weight of the whole bolt is reduced so as to further reduce the weight of the installed objects; the arrangement of the round hole cavity on the axle center of the bolt body can effectively improve the rigidity of the bolt piece in the condition that the strength of the whole structure is not influenced, so that the crimped section internal stress of the bolt is improved; the arrangement of the round hole cavity on the axle center of the bolt body solves the problem of the bad penetrability of the heat treatment of the axle center so as to improve the heat treatment effect of the bolt body.
Description
Technical field
The present invention relates to the technical field of fastening piece in the five metals element, particularly a kind of band pad hollow bolt.
Background technique
General bolt fastener traditionally mostly is the solid body structure, also use widely than tool, but the whole relatively weight of the bolt arrangement of solid body is bigger, and big weight directly can cause the raising of cost, is unfavorable for the saving of resource; Also have big weight also can bring the increase of being joined object weight; The solid body structure is when heat treatment, and the permeability in axle center is relatively poor.
But also having the bolt of half special-purpose hollow structure in the society, is Chinese utility model patent " the sleeve bolt " (notification number: CN2612832Y) this type of design is arranged of ZL03229829.3 as number of patent application; Profile is the beer ampuliform, and top is screwed screw rod, and the bottom is the hollow sleeve of hole enlargement, and the sleeve circumference has 3-5 groove that is used to weld along the sleeve generatrix direction.The special bolt in special use occasion is mainly considered in this design, does not have and the general function of present society's circulation bolt, so do not have the possibility of batch process; And this structure only relates to the part hollow structure, and hollow design is not carried out in the double thread attachment portion yet, so use on the performance of section the structure with present solid bolt identical at screw thread, do not have bigger difference.
Summary of the invention
Technical problem to be solved by this invention is the present situation at prior art, provide a kind of rational in infrastructure, in light weight, rigidity is effective, the crimped section internal stress reaches the good band pad hollow bolt of thermal effectiveness by force.
The present invention solves the problems of the technologies described above the technological scheme that is adopted: band pad hollow bolt, comprise bolt body, this bolt body has the bar portion body and the tail end body of disjunctor, bar portion body head end radially is shaped on the threaded body of shaggy tooth groove shape, and the effective length of this threaded body equals the diameter value of bar portion body at least; The bolt body axial centre is shaped at least one seamless tubular shaped die cavity body through cold upset forming, and this die cavity body runs through the axle head of bar portion body and tail end body; Described bolt body also has clout body, and between bar portion body and tail end body.
The measure of taking also comprises:
First kind of technological scheme of above-mentioned bolt body is: above-mentioned bolt body clout body is first structure of square toes band pulvilliform shape, and the first tail end body that this first structure is shaped on is cubic body, and the front end of this first tail end body is the first bar portion body; The die cavity body that first structure is shaped on is one first a circular hole body, and this first circular hole body is positioned at the shaft core position of the above-mentioned first bar portion body.
Be shaped on abducent first clout body between the first above-mentioned bar portion body and the first tail end body, this first clout body inner surface is shaped on the first regularly arranged buckle teeth; The first threaded body length that the above-mentioned first bar portion system has is at least half length of this first bar portion body.
The rotation direction of above-mentioned first threaded body becomes opposite setting with the rotation direction of described first buckle teeth; The axial end of tail end body is shaped on the first chamfering rib on the first above-mentioned circular hole body and; The first threaded body length that the above-mentioned first bar portion system has extends the whole length of this first bar portion body.
Second kind of technological scheme of above-mentioned bolt body is: above-mentioned bolt body clout body is second structure of hexagonal headband pulvilliform shape, and the second tail end body that this second structure is shaped on is the hexagonal shaped body, and the front end of this second tail end body is the second bar portion body; The die cavity body that second structure is shaped on is one second a circular hole body, and this second circular hole body is positioned at the shaft core position of the above-mentioned second bar portion body.
Be shaped on abducent second clout body between the second above-mentioned bar portion body and the second tail end body, this second clout body inner surface is shaped on the second regularly arranged buckle teeth; Second threaded body that the second above-mentioned bar portion system has is at least half length of this second bar portion body.
Above-mentioned second threaded body becomes opposite setting with the rotation direction of second buckle teeth; Be shaped on the hexagon die cavity body of indent in the middle of the second above-mentioned tail end body, and this hexagon die cavity body and the second above-mentioned circular hole body break-through mutually.
Second threaded body that the second above-mentioned bar portion system has extends the whole length of this second bar portion body.
Compared with prior art, the present invention includes bolt body, this bolt body has the bar portion body and the tail end body of disjunctor, and bar portion body head end radially is shaped on the threaded body of shaggy tooth groove shape, and the effective length of this threaded body equals the diameter value of bar portion body at least; The bolt body axial centre is shaped at least one seamless tubular shaped die cavity body through cold upset forming, and this die cavity body runs through the axle head of bar portion body and tail end body; Described bolt body also has clout body, and between bar portion body and tail end body.The invention has the advantages that: at bolt body axle center preparation circular hole cavity, whole bolt weight saving, and then reduced the weight that relevant institute is equipped with object effectively; At bolt body axle center preparation circular hole cavity, under the situation that overall construction intensity remains unchanged, improve the rigidity of bolt part effectively, strengthened the crimped section internal stress of bolt part; At bolt body axle center preparation circular hole cavity, in weight saving, also realized the saving of whole resource; At bolt body axle center preparation circular hole cavity, solved the relatively poor problem of axle center heat treatment permeability, improved the thermal effectiveness of the body of bolt.
Description of drawings
Fig. 1 is a partial screw threads structure three-dimensional schematic representation in the square toes band pulvilliform bolt body of the embodiment of the invention;
Fig. 1 a is that the master of Fig. 1 looks schematic representation;
Fig. 1 b is that schematic representation is looked on the left side of Fig. 1;
Fig. 1 c is that schematic representation is looked on the right side of Fig. 1;
Fig. 1 d is the schematic top plan view of Fig. 1;
Fig. 1 e is the elevational schematic view of Fig. 1;
Fig. 1 f is the schematic rear view of Fig. 1;
Fig. 1 g is the transposition schematic three dimensional views of Fig. 1;
Fig. 2 is a Full Thread FT structure three-dimensional schematic representation in the square toes band pulvilliform bolt body of the embodiment of the invention;
Fig. 2 a is that the master of Fig. 2 looks schematic representation;
Fig. 2 b is that schematic representation is looked on the left side of Fig. 2;
Fig. 2 c is that schematic representation is looked on the right side of Fig. 2;
Fig. 2 d is the schematic top plan view of Fig. 2;
Fig. 2 e is the elevational schematic view of Fig. 2;
Fig. 2 f is the schematic rear view of Fig. 2;
Fig. 2 g is the transposition schematic three dimensional views of Fig. 2;
Fig. 3 is a partial screw threads structure three-dimensional schematic representation in the hexagonal headband pulvilliform bolt body of the embodiment of the invention;
Fig. 3 a is that the master of Fig. 3 looks schematic representation;
Fig. 3 b is that schematic representation is looked on the left side of Fig. 3;
Fig. 3 c is that schematic representation is looked on the right side of Fig. 3;
Fig. 3 d is the schematic top plan view of Fig. 3;
Fig. 3 e is the elevational schematic view of Fig. 3;
Fig. 3 f is the schematic rear view of Fig. 3;
Fig. 3 g is the transposition schematic three dimensional views of Fig. 3.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
The embodiment of the invention, band pad hollow bolt comprises bolt body, and this bolt body has the bar portion body and the tail end body of disjunctor, bar portion body head end radially is shaped on the threaded body of shaggy tooth groove shape, and the effective length of this threaded body equals the diameter value of bar portion body at least; The bolt body axial centre is shaped at least one seamless tubular shaped die cavity body through cold upset forming, and this die cavity body runs through the axle head of bar portion body and tail end body; Described bolt body also has clout body, and between bar portion body and tail end body.
Present embodiment is achieved in that
The embodiment of the invention one shown in Fig. 1 to Fig. 1 g, the bolt body clout body is first structure 14 of square toes band pulvilliform shape, the first tail end body 14a that this first structure 14 is shaped on is cubic body, and the front end of this first tail end body 14a is the first body 14c of bar portion; The die cavity body that first structure 14 is shaped on is one first circular hole body 14b, and this first circular hole body 14b is positioned at the shaft core position of the first body 14c of bar portion.
Be shaped on the abducent first clout body 14d between the first body 14c of bar portion and the first tail end body 14a, the first clout body 14d inner surface is shaped on the first regularly arranged buckle teeth 14g; The first threaded body 14e length that the first body 14c of bar portion is shaped on is half length of the body 14c of this first bar portion.The rotation direction of the first threaded body 14e becomes opposite setting with the rotation direction of the described first buckle teeth 14g; The axial end of tail end body 14a is shaped on the first chamfering rib 14f on the first circular hole body 14b and.
The embodiment of the invention two shown in Fig. 2 to Fig. 2 g, the bolt body clout body is first structure 14 of square toes band pulvilliform shape, the first tail end body 14a that this first structure 14 is shaped on is cubic body, and the front end of this first tail end body 14a is the first body 14c of bar portion; The die cavity body that first structure 14 is shaped on is one first circular hole body 14b, and this first circular hole body 14b is positioned at the shaft core position of the first body 14c of bar portion.
Be shaped on the abducent first clout body 14d between the first body 14c of bar portion and the first tail end body 14a, the first clout body 14d inner surface is shaped on the first regularly arranged buckle teeth 14g; The rotation direction of the first threaded body 14e becomes opposite setting with the rotation direction of the described first buckle teeth 14g; The axial end of tail end body 14a is shaped on the first chamfering rib 14f on the first circular hole body 14b and; The first threaded body 14e length that the first body 14c of bar portion is shaped on extends the whole length of the body 14c of this first bar portion.
The embodiment of the invention three shown in Fig. 3 to Fig. 3 g, the bolt body clout body is second structure 15 of hexagonal headband pulvilliform shape, the second tail end body 15a that this second structure 15 is shaped on is the hexagonal shaped body, and the front end of this second tail end body 15a is the second body 15c of bar portion; The die cavity body that second structure 15 is shaped on is one second circular hole body 15b, and this second circular hole body 15b is positioned at the shaft core position of the second body 15c of bar portion.
Be shaped on the abducent second clout body 15d between the second body 15c of bar portion and the second tail end body 15a, the second clout body 15d inner surface is shaped on the second regularly arranged buckle teeth 15g; The second threaded body 15e that the second body 15c of bar portion is shaped on is at least half length of the body 15c of this second bar portion.Perhaps, the second threaded body 15e that is shaped on of the second body 15c of bar portion extends the whole length of the body 15c of this second bar portion.The second threaded body 15e becomes opposite setting with the rotation direction of the second buckle teeth 15g; Be shaped on the hexagon die cavity body 15f of indent in the middle of the second tail end body 15a, and this hexagon die cavity body 15f and the second circular hole body 15b break-through mutually.
The invention has the advantages that: at bolt body axle center preparation circular hole cavity, whole bolt weight saving, and then reduced the weight that relevant institute is equipped with object effectively; At bolt body axle center preparation circular hole cavity, under the situation that overall construction intensity remains unchanged, improve the rigidity of bolt part effectively, strengthened the crimped section internal stress of bolt part; At bolt body axle center preparation circular hole cavity, in weight saving, also realized the saving of whole resource; At bolt body axle center preparation circular hole cavity, solved the relatively poor problem of axle center heat treatment permeability, improved the thermal effectiveness of the body of bolt.
Most preferred embodiment of the present invention is illustrated, and various variations or the remodeling made by those of ordinary skills can not break away from the scope of the invention.
Claims (8)
1, band pad hollow bolt, comprise bolt body, described bolt body has the bar portion body and the tail end body of disjunctor, and described bar portion body head end radially is shaped on the threaded body of shaggy tooth groove shape, and the effective length of this threaded body equals the diameter value of bar portion body at least; It is characterized in that: described bolt body axial centre is shaped at least one seamless tubular shaped die cavity body through cold upset forming, and this die cavity body runs through the axle head of bar portion body and tail end body; Described bolt body also has clout body, and between bar portion body and tail end body.
2, band pad hollow bolt according to claim 1, it is characterized in that: described bolt body clout body is first structure (14) of square toes band pulvilliform shape, the first tail end body (14a) that this first structure (14) is shaped on is cubic body, and the front end of this first tail end body (14a) is the first bar portion body (14c); The die cavity body that described first structure (14) is shaped on is one first a circular hole body (14b), and this first circular hole body (14b) is positioned at the shaft core position of the described first bar portion body (14c).
3, band pad hollow bolt according to claim 2, it is characterized in that: be shaped on abducent first clout body (14d) between the described first bar portion body (14c) and the first tail end body (14a), described first clout body (14d) inner surface is shaped on regularly arranged first buckle teeth (14g); First threaded body (14e) length that described first bar portion body (14c) is shaped on is at least half length of this first bar portion body (14c).
4, band pad hollow bolt according to claim 3 is characterized in that: the rotation direction of described first threaded body (14e) becomes opposite setting with the rotation direction of described first buckle teeth (14g); The axial end of tail end body (14a) is shaped on the first chamfering rib (14f) on the described first circular hole body (14b) and the; First threaded body (14e) length that described first bar portion body (14c) is shaped on extends the whole length of this first bar portion body (14c).
5, band pad hollow bolt according to claim 1, it is characterized in that: described bolt body clout body is second structure (15) of hexagonal headband pulvilliform shape, the second tail end body (15a) that this second structure (15) is shaped on is the hexagonal shaped body, and the front end of this second tail end body (15a) is the second bar portion body (15c); The die cavity body that described second structure (15) is shaped on is one second a circular hole body (15b), and this second circular hole body (15b) is positioned at the shaft core position of the described second bar portion body (15c).
6, band pad hollow bolt according to claim 5, it is characterized in that: be shaped on abducent second clout body (15d) between the described second bar portion body (15c) and the second tail end body (15a), described second clout body (15d) inner surface is shaped on regularly arranged second buckle teeth (15g); Second threaded body (15e) that described second bar portion body (15c) is shaped on is at least half length of this second bar portion body (15c).
7, band pad hollow bolt according to claim 6 is characterized in that: described second threaded body (15e) becomes opposite setting with the rotation direction of described second buckle teeth (15g); Be shaped on the hexagon die cavity body (15f) of indent in the middle of the described second tail end body (15a), and this hexagon die cavity body (15f) and described second circular hole body (15b) break-through mutually.
8, band pad hollow bolt according to claim 7 is characterized in that: second threaded body (15e) that described second bar portion body (15c) is shaped on extends the whole length of this second bar portion body (15c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810063095 CN101363469A (en) | 2008-07-10 | 2008-07-10 | Hollow bolt with pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810063095 CN101363469A (en) | 2008-07-10 | 2008-07-10 | Hollow bolt with pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101363469A true CN101363469A (en) | 2009-02-11 |
Family
ID=40390015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810063095 Pending CN101363469A (en) | 2008-07-10 | 2008-07-10 | Hollow bolt with pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101363469A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410828A (en) * | 2013-08-12 | 2013-11-27 | 苏州市合昌电器有限公司 | Bolt |
| CN104703416A (en) * | 2013-12-05 | 2015-06-10 | 上海搜博实业有限公司 | Field bus type signal distributor |
| USD764267S1 (en) * | 2015-07-07 | 2016-08-23 | Physical Systems, Inc. | Hollow screw |
-
2008
- 2008-07-10 CN CN 200810063095 patent/CN101363469A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410828A (en) * | 2013-08-12 | 2013-11-27 | 苏州市合昌电器有限公司 | Bolt |
| CN104703416A (en) * | 2013-12-05 | 2015-06-10 | 上海搜博实业有限公司 | Field bus type signal distributor |
| USD764267S1 (en) * | 2015-07-07 | 2016-08-23 | Physical Systems, Inc. | Hollow screw |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20090211 |