CN2926632Y

CN2926632Y - Two-section screw fixing structure

Info

Publication number: CN2926632Y
Application number: CN 200620003256
Authority: CN
Inventors: 梁铨益; 沈姿吟
Original assignee: Wistron Corp
Current assignee: Wistron Corp
Priority date: 2006-03-13
Filing date: 2006-03-13
Publication date: 2007-07-25
Anticipated expiration: 2016-03-13

Abstract

The utility model discloses a double-section type screw fixed structure which is used to fix one article to another article. The screw has a nut, a large radial distance and a small radial distance that is connected in order; wherein, a screw thread section is arranged in the lower part of the large radial distance of which the surface is protruded on the external screw tooth of the screw thread section; the small radial distance has an external screw tooth. The utility model makes use of a screw thread section fixing article of the screw; wherein, the small radial distance of the screw is screwed into another article; another fastener used fixing article need not to be reassembled so as to save the material cost and the needed work time for assembling the fastener, furthermore, the situation of crowding out space between the fastener and other subassemblies thus can be avoided.

Description

The screw fixed structure of two-part

Technical field

The utility model relates to the structure of screw, relates in particular to the screw fixed structure of two-part.

Background technique

There are various screws to be fixed in by different way on the heat radiation module.See also shown in Figure 1.Existing a kind of special screw 10, have two sections different diameters, its lower end is the path section 11 with thread 111, it in the middle of it big footpath section 12, the lower end of big footpath section 12 has an annular groove 121 for fasteners such as E type clasp or O type clasp 21 fastenings, its upper end has nut 13, and big footpath section 12 is a ring plain 122 with the joint of path section 11.During use, make plate-like articles 30 such as a helical spring 22 and a radiating fin be socketed on big footpath section 12 in regular turn, be buckled in annular groove 121 with fastener 21 again; Make fastener 21 be resisted against object 30 bottoms; The upper end of helical spring 22 is against nut 13, lower end resilient abutment object 30; Again the path section 11 of screw 10 is bolted in the screw of another object such as heat radiation module; Make the top of being fixed in another object of plate-like articles 30 elastic telescopics, and can not drop.

Other has the patent of many two-part screws, and for example U. S. Patent the 6th, 796, the screw bolt and nut (Bolt and nut) of No. 761 announcements; The triple thread double end retaining screw that the TaiWan, China patent announcement discloses for No. 519197 with different height threads; The locking nut that No. the 35781st, TaiWan, China patent announcement the discloses screw etc. that do not get loose.The purposes that these screws are had nothing in common with each other.

The defective of screw 10 shown in Figure 1 is to utilize a fastener 21 to be fixed in the below of object 30 during use.Under the narrow and small situation in space, fastener 21 can produce tying up on spaces with other assemblies, therefore is difficult to assemble a fastener 21 again with mounting article 30, and assembles a fastener 21 again and also can increase the cost of material of fastener 21 and expend the man-hour of assembling.

Summary of the invention

The utility model can produce tying up and the technical problem of consume material expense on the space for the screw fixed structure that solves existing two-part, and provide a kind of screw fixed structure of two-part, this structure does not need other fasteners when assembling, can avoid fastener and other assemblies to produce tying up on the space, and can save the required cost of material of fastener and assembling fastener required man-hour.

The utility model is to solve the problems of the technologies described above the scheme that adopts to be: a kind of screw fixed structure of two-part, and be used to make an object to be fixed in another object top, this screw has nut, big footpath section and the path section that links to each other in regular turn; Should have a thread section in the big directly lower end of section; The external screw thread of this thread section protrudes the surface of this big footpath section; This path section has external screw thread; Utilize the thread section of the big footpath section of this screw to fix this object, utilize the path section of this screw to be bolted in this another object; Do not need to assemble again the fastener that another is used for fixing object, can save Master Cost, and save assembling fastener required man-hour, and can avoid the phenomenon that ties up on fastener and other assemblies generation space, in addition, also can utilize the screw thread of this big footpath section that helical spring is done the precompressed action.

Description of drawings

Below in conjunction with drawings and Examples feature of the present utility model and effect are described, wherein:

Fig. 1 is the schematic representation of known two-part screw fixing plates spare.

Fig. 2 is the generalized section of the utility model two-part screw.

Fig. 3 is the schematic representation of the utility model two-part screw mounting article.

Fig. 4 A is the schematic representation of object.

Fig. 4 B is the AA generalized section along Fig. 4 A.

Fig. 5 is the another way schematic representation of this novel two-part screw mounting article.

Embodiment

See also shown in Figure 2.The screw fixed structure of the utility model two-part is used to make an object to be fixed in another object top, and it comprises a screw 40; This screw 40 has nut 41, big footpath section 42 and the path section 43 that links to each other in regular turn, and big footpath section 42 is a ring plain 423 with the joint of path section 43; The lower end of wherein big footpath section 42 has a thread section 421.The external screw thread of thread section 421 protrudes the surface of big footpath section 42.One gap 422 is arranged between thread section 421 and the path section 43, and the root of thread section 421 footpath is greater than big footpath section 42.Path section 43 has external screw thread 431.

See also shown in Fig. 2,3,4A, the 4B, 5.With the object 50 that screw 40 of the present utility model combines, have the big footpath section 43 corresponding holes 51 with screw 40, have in the hole 51 and thread section 41 corresponding internal screw threads 511, shown in Fig. 4 A, 4B.

When the utility model uses,, make object 50 be fixed in path section 431 tops of screw 40, as shown in Figure 5 with the be spirally connected thread section 421 of screw 40 of the hole 51 that makes object 50; Or rotation screw 40, make thread section 421 pass the hole 51 of object 50, make screw 40 coping screw sections 421 be subjected to the stopping of hole 51 of object 50 and can not break away from object 50, as shown in Figure 3; Make the path section 43 of screw 40 another object that is spirally connected again, fixing support rack runners such as the curved backboard of for example anti-plate, because of the hole 51 of object 50 is socketed on the big footpath section 43 of screw 40 or is bolted in thread section 421, can make object 50 be fixed in the top of another object, and can not drop by screw 40.

Characteristics of the present utility model are: make the big footpath section 42 of screw 40 have thread section 421, utilize thread section 421 to replace fastener 21 shown in Figure 1, be used for fixing an object 50.Therefore do not need to assemble again a fastener that is used for fixing object 50, can save the required Master Cost of fastener, and save assembling fastener required man-hour, and because of not needing to assemble again fastener, therefore can avoid the phenomenon that ties up near other assemblies generation spaces fastener and the screw 40, and situation about can not install takes place, in addition, can do the precompressed action to spring 23 by the position that the thread section 421 of adjusting big footpath section 42 be bolted in object 50.

Above put down in writing only for utilizing the embodiment of the utility model technology contents, any those skilled in the art utilize the substitutions and modifications of all equivalences that the utility model does, all belong to the claim that the utility model is advocated, and be not limited to the content that above embodiment discloses.

Claims

1. the screw fixed structure of a two-part is used to make an object to be fixed in another object top, and described screw has nut, big footpath section and the path section that links to each other in regular turn; It is characterized in that the lower end of described big footpath section has a thread section; The external screw thread of described thread section protrudes the surface of described big footpath section; Described path section has external screw thread; Utilize the fixing described object of thread section of described screw, utilize the path section of described screw to be bolted in described another object.

2. the screw fixed structure of two-part as claimed in claim 1 is characterized in that, the joint of described big footpath section and path section is a ring plain.

3. the screw fixed structure of two-part as claimed in claim 1 or 2 is characterized in that, between described thread section and the described path section gap is arranged.

4. the screw fixed structure of two-part as claimed in claim 3 is characterized in that, the root footpath of described thread section is greater than described big footpath section.