CN201221540Y - Hexagonal hollow screw with pad - Google Patents
Hexagonal hollow screw with pad Download PDFInfo
- Publication number
- CN201221540Y CN201221540Y CN 200820121222 CN200820121222U CN201221540Y CN 201221540 Y CN201221540 Y CN 201221540Y CN 200820121222 CN200820121222 CN 200820121222 CN 200820121222 U CN200820121222 U CN 200820121222U CN 201221540 Y CN201221540 Y CN 201221540Y
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- CN
- China
- Prior art keywords
- shaped
- bar portion
- tail end
- screw
- bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a hollow screw with hexagon head and pad, comprising a screw body. The screw body comprises a rod body and a tail end body which are connected together with each other. The head end of the rod body is provided with a thread body with concave-convex tooth space in the radial direction, and the effective length of the thread body is at least equal to the diameter value of the rod body. The axial center of the bolt body is provided with at least a seamless pipe shaped cavity formed through cold heading, and the cavity runs through the shaft end of the rod body and the tail end body. The screw body is a structure body with hexagon head and pad shape. The axle center of the screw body is provided with a round hole cavity. The weight of the entire bolt is reduced, and furthermore the weight of the relevant assembled elements is effectively reduced. The round hole cavity is arranged on the axle center of the screw body, under the condition that the entire structure strength remains unchanged, the rigidity of the bolt can be effectively improved. The round hole cavity is arranged on the axle center of the bolt body, as well as the weight is reduced, the resources is saved. The round hole cavity is arranged on the axle center of the bolt body, which can solve the problem that the permeability of the axle center heat treatment is poor, and improves the heat treatment effect of the bolt.
Description
Technical field
The utility model relates to the technical field of fastening piece in the five metals element, particularly a kind of hexagonal belt pad cored screw.
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.
Screw and bolt belong to same technology category, and carry out the argumentation of background technique by bolt arrangement.As number of patent application is Chinese utility model patent " the sleeve bolt " (notification number: CN2612832Y) this type of design is arranged of ZL03229829.3; 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 in the utility model is the present situation at prior art, provide a kind of lightweight construction, rigidity effective, save resource and the good a kind of hexagonal belt pad cored screw of thermal effectiveness.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of hexagonal belt pad cored screw, comprise the screw body, this screw 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; The screw body is the structure of hexagonal headband pulvilliform shape.
The measure of taking also comprises:
The tail end body that above-mentioned structure is shaped on is the hexagonal body, and the front end of tail end body is a bar portion body; Be shaped on abducent clout body between bar portion body and the tail end body; The die cavity body that structure is shaped on is a circular hole body, and this circular hole body is positioned at the shaft core position of bar portion body.
Above-mentioned clout body inner surface is shaped on the buckle teeth that is arranged in order.
The shaggy tooth cell body length that above-mentioned bar portion system has is at least half length of this bar portion body.
Above-mentioned buckle teeth becomes opposite setting with the rotation direction of shaggy tooth cell body; The above-mentioned circular hole body and the axial end of tail end body are shaped on the chamfering rib; Be shaped on the hexagon die cavity body of indent in the middle of the above-mentioned tail end body, and this hexagon die cavity body and the break-through mutually of circular hole body; The shaggy tooth cell body length that above-mentioned bar portion system has extends the whole length of this bar portion body.
Compared with prior art, the utility model comprises the screw body, this screw 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; The screw body is the structure of hexagonal headband pulvilliform shape.Advantage of the present utility model is: at screw body axle center preparation circular hole cavity, and whole bolt weight saving, and then reduced the weight that relevant institute is equipped with object effectively; At screw body axle center preparation circular hole cavity, under the situation that overall construction intensity remains unchanged, improve the rigidity of bolt part effectively; At screw body axle center preparation circular hole cavity, in weight saving, also realized the saving of whole resource; At screw 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 half screw thread and an inner hexagonal hole structure three-dimensional schematic representation in the utility model embodiment's the hexagonal headband pulvilliform shape screw body;
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 that the back of the body of Fig. 1 is looked schematic representation;
Fig. 1 g is the transposition schematic three dimensional views of Fig. 1;
Fig. 2 is whole section screw thread and an inner hexagonal hole structure three-dimensional schematic representation in the utility model embodiment's the hexagonal headband pulvilliform shape screw body;
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 that the back of the body of Fig. 2 is looked schematic representation;
Fig. 2 g is the transposition schematic three dimensional views of Fig. 2.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
The utility model embodiment, a kind of hexagonal belt pad cored screw comprises the screw body, and this screw 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; The screw body is the structure 14 of hexagonal headband pulvilliform shape.
Present embodiment is achieved in that
The utility model embodiment one shown in Fig. 1 to Fig. 1 g, the screw body is the structure 14 of hexagonal headband pulvilliform shape, and the tail end body 14a that this structure 14 is shaped on is the hexagonal body, and the front end of tail end body 14a is the body 14b of bar portion; Be shaped on abducent clout body 14d between body 14b of bar portion and the tail end body 14a; The die cavity body that structure 14 is shaped on is a circular hole body 14c, and this circular hole body 14c is positioned at the shaft core position of the body 14b of bar portion.
Be shaped on the hexagon die cavity body 14h of indent in the middle of the tail end body 14a, and this hexagon die cavity body 14h and described circular hole body 14c break-through mutually.
The utility model embodiment two shown in Fig. 2 to Fig. 2 g, the screw body is the structure 14 of hexagonal headband pulvilliform shape, and the tail end body 14a that this structure 14 is shaped on is the hexagonal body, and the front end of tail end body 14a is the body 14b of bar portion; Be shaped on abducent clout body 14d between body 14b of bar portion and the tail end body 14a; The die cavity body that structure 14 is shaped on is a circular hole body 14c, and this circular hole body 14c is positioned at the shaft core position of the body 14b of bar portion.
Be shaped on the hexagon die cavity body 14h of indent in the middle of the tail end body 14a, and this hexagon die cavity body 14h and described circular hole body 14c break-through mutually.
Advantage of the present utility model is: at screw body axle center preparation circular hole cavity, and whole bolt weight saving, and then reduced the weight that relevant institute is equipped with object effectively; At screw body axle center preparation circular hole cavity, under the situation that overall construction intensity remains unchanged, improve the rigidity of bolt part effectively; At screw body axle center preparation circular hole cavity, in weight saving, also realized the saving of whole resource; At screw 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 utility model is illustrated, and various variations or the remodeling made by those of ordinary skills can not break away from scope of the present utility model.
Claims (5)
1, a kind of hexagonal belt pad cored screw, comprise the screw body, described screw 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; The screw body is the structure (14) of hexagonal headband pulvilliform shape.
2, a kind of hexagonal belt pad cored screw according to claim 1, it is characterized in that: the tail end body (14a) that described structure (14) is shaped on is the hexagonal body, and the front end of described tail end body (14a) is a bar portion body (14b); Be shaped on abducent clout body (14d) between described bar portion's body (14b) and the tail end body (14a); The die cavity body that described structure (14) is shaped on is a circular hole body (14c), and this circular hole body (14c) is positioned at the shaft core position of described bar portion's body (14b).
3, a kind of hexagonal belt pad cored screw according to claim 2, it is characterized in that: described clout body (14d) inner surface is shaped on the buckle teeth (14f) that is arranged in order.
4, a kind of hexagonal belt pad cored screw according to claim 3, it is characterized in that: shaggy tooth cell body (14e) length that described bar portion's body (14b) is shaped on is at least half length of this bar portion body (14b).
5, a kind of hexagonal belt pad cored screw according to claim 3 is characterized in that: described buckle teeth (14f) becomes opposite setting with the rotation direction of shaggy tooth cell body (14e); Described circular hole body (14c) is shaped on chamfering rib (14g) with the axial end of tail end body (14a); Be shaped on the hexagon die cavity body (14h) of indent in the middle of the described tail end body (14a), and this hexagon die cavity body (14h) and described circular hole body (14c) break-through mutually; Shaggy tooth cell body (14e) length that described bar portion's body (14b) is shaped on extends the whole length of this bar portion body (14b).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200820121222 CN201221540Y (en) | 2008-07-10 | 2008-07-10 | Hexagonal hollow screw with pad |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200820121222 CN201221540Y (en) | 2008-07-10 | 2008-07-10 | Hexagonal hollow screw with pad |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201221540Y true CN201221540Y (en) | 2009-04-15 |
Family
ID=40575048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200820121222 Expired - Fee Related CN201221540Y (en) | 2008-07-10 | 2008-07-10 | Hexagonal hollow screw with pad |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201221540Y (en) |
-
2008
- 2008-07-10 CN CN 200820121222 patent/CN201221540Y/en not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20100710 |