CN2302363Y

CN2302363Y - Combined full-expanding fixing constructional element

Info

Publication number: CN2302363Y
Application number: CN 97206529
Authority: CN
Inventors: 戴宏乔
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-02-06
Filing date: 1997-02-06
Publication date: 1998-12-30
Anticipated expiration: 2007-02-06

Abstract

The utility model discloses a combined full-expanding fixing constructional element, comprising a housing (1), a sliding sleeve (2), a nut (3), and a bolt (4). The utility model is characterized in that the housing (1) is formed by combining three pipe walls whose central angle is 120 DEG through two elastic rings (6) arranged in the arced groove of the near-end of an outer wall; the both ends of the inner wall are provided with equilateral hexagonal guide faces; the middle of the inner wall is provided with a pipe (10) whose diameter is the same as the diameter of a cylindrical guide face (7); the shapes of the sliding sleeve (2) and the nut (3) are an equilateral hexagonal flat cone. The utility model has the advantages that the housing (1) can outspread whole; firmness is high after the combined full-expanding fixing constructional element is installed, applied to decorating various buildings, installing telecommunication cables, and installing and fixing subway tunnel engineering, and various medium-small appliances.

Description

Combined type is expanded fixed component entirely

The utility model relates to a kind of structure that installs and fixes member, and especially a kind of combined type is expanded the design of fixed component entirely.

At present domestic widely used fixed component mostly adopts single-ended EXPANSION ANCHOR BOLTS, because its structure is that single-ended expansion, expansion amount are subjected to bigger restriction, fixedly fastness is poor to cause installation material, and the aperture that burrows, basis is required tight shortcoming.In addition, because of bolt and shell (or claiming expansion cylinder) are imbedded in the basic hole simultaneously, and bolt tail has very long some faces that must extend, when object is installed, will leave basic certain height earlier, be inserted in the fixed hole of installation material in the bolt in secured in alignment hole then, just can screw on nut and compress, certainly will increase difficulty and labor intensity when installing like this.For this reason, people constantly study, improve the structure that installs and fixes member.As double-end expansion peg (patent No. ZL 89200324.3) two-way expansion bolts (patent No. ZL94222946.0) and expansion bolt (patent No. ZL93219378.1), effort by them improves, though overcome some shortcoming that single-ended EXPANSION ANCHOR BOLTS exists, but still can not make shell on all directions in garden week, obtain enough swell incremenies equably.As two-way expansion bolt, can only make two ends obtain swell increment, partly do not produce expansion in the middle of the length.Expansion bolt then can only be a kind of structural type that the whole both direction to garden week expands.Therefore, in use, still there is certain defective, poor as tightness, easily rock etc.

The utility model aims to provide and a kind ofly can overcome above-mentioned deficiency, when object is installed, can be convenient and strength-saving, and can make the fastening back of installation material fastness height again, the structural design that can bear the combined type fixed component of weight.

The utility model is to realize like this.Combined type is expanded fixed component entirely, comprises shell, sliding sleeve, nut and bolt, is characterized in that shell is 120 ° a tube wall by three center angles, at each sheet tube wall outer wall two close end arc groove is arranged, and by elasticity garden ring three tube walls is joined together; Sliding sleeve and nut are equipped with in the shell two ends, and bolt penetrates in the sliding sleeving hole of outer casing end and the nut integrator of the other end; The profile of sliding sleeve and nut is a frustoconical bevel, the cone small end is provided with a garden cylindricality guide surface, and the awl wall is provided with more than one rotation inhibiting symmetry plane, the inwall two ends of shell are provided with equilateral hexagonal guide surface, the inwall intermediate section be one with the siphunculus of garden cylindricality guide surface same diameter, the profile of sliding sleeve and nut is six equilateral rib frustoconical bevel.Sliding sleeve and nut are equipped with in two ends in the shell that the utility model adopts the multi-disc tube wall to form, shell, mix standard bolt and form.Bolt tail passes the sliding sleeve center hole and nut screws, because sliding sleeve and nut are all tapered, when screw thread screws, both is moved to the centre of outer cover length, forces the slit of shell to be opened.When opened in the slit, the mode of its expansion then must make shell expand outwardly along all directions of garden side face, made in the hole, fixed component fastening what basis.

Below in conjunction with accompanying drawing enforcement of the present utility model is further described.

Fig. 1 combined type is expanded the fixed component structural representation entirely.

Fig. 2 combined type is expanded fixed component shell three-face view entirely.

Fig. 3 combined type is expanded two views of fixed component sliding sleeve entirely.

Fig. 4 combined type is expanded two views of fixed component nut entirely.

Above-mentioned diagram: shell 1, sliding sleeve 2, nut 3, bolt 4, nut thread hole 5, elasticity garden ring 6, garden cylindricality guide surface 7, rotation inhibiting symmetry plane 8, equilateral hexagon guide surface 9, siphunculus 10, garden arc groove 11.

The utility model structure comprises shell (1), sliding sleeve (2), nut (3) and the bolt (4) that three tube walls are formed.Referring to Fig. 1.Its shell (1) is that 120 ° of tube walls are formed by three center angles, referring to Fig. 2.The elasticity garden ring (6) at outer wall two ends embeds in the garden arc groove (11) at outer wall two ends, and making three center angles is that 120 ° of tube walls constitute one.The inwall two ends are provided with the guide surface (9) of equilateral hexagonal, and the inwall intermediate section is the siphunculus (10) of and garden cylindricality guide surface same diameter, referring to Fig. 1.

The profile of sliding sleeve (2) and nut (3) is a frustoconical bevel, the cone small end is provided with a garden cylindricality guide surface (7) and the cone outer wall is provided with the more than one symmetry plane (8) that prevents that sliding sleeve and nut from rotating, the profile of sliding sleeve (2) and nut (3) is six equilateral rib frustoconical bevel, referring to Fig. 3, Fig. 4.When combination, six limits are aligned with each other, and miner diameter end is inserted in the guide surface (9) of shell (1), and bolt tail penetrates in the hole from the sliding sleeve end and screws with nut, referring to Fig. 1.

When combined type is expanded the fixed component use entirely, according to the fixed hole position of installation material, punch on base surface, the aperture generally can be grasped within bigger 0.1～0.5mm scope than external diameter by the external diameter decision of shell (1).After the hole is accomplished fluently, shed the bolt (4) of fixed component, basic hole is partly put in the combination of shell (1) and sliding sleeve (2), nut (3).The degree of depth in hole is grasped at fixed component and surface of base and is maintained an equal level.Must be noted that when putting into and nut (3) end should be put into earlier, make sliding sleeve (2) end outside.Then installation material fixed hole position is aimed at, screwed screw thread after penetrating bolt.

When screw thread is threaded to certain position, sliding sleeve (2) and nut (3) are subjected to the pulling force of bolt by what, partly move toward shell (1) mid-length, from two ends extruding shell (1), the line crack of shell (1) are opened.Because its structure, therefore the garden side face of whole housing expands outwardly, and the power that screws of screw thread is bigger, and the amount of movement of sliding sleeve (2) and nut (3) is also bigger, and the expansion amount of shell (1) is also bigger.When the power that screws of screw thread acquired a certain degree, then the whole casing of fixed component (1) can obtain enough swell incremenies, and whole tube wall and basis are firmly combined, thereby made the fixture that is mounted firmly fix what basis thing.

Structure of the present utility model is characterized in being embedded in the fixed component of part, and its whole casing (1) can expand along all directions of garden side face, can obtain whole expansion, thereby reaches the purpose that be fixed object and basic thing firmly connect.Therefore it is good to have tightness, and installation material is the fastness height fixedly, and installing and fixing of the various construction and decorations of applicable what, telecommunication cable installation, tunnel underground engineering and various middle-size and small-size apparatuses also can replace some embedded part and the fixing mounting type of welding.

Claims

1, combined type is expanded fixed component entirely, comprise shell (1), sliding sleeve (20), nut (3) and bolt (4), its feature is 120 ° tube wall by three center angles at what shell (1), at each sheet tube wall outer wall two close end arc groove (11) is arranged, three tube walls are joined together by elasticity garden ring (6); Sliding sleeve (2) and nut (3) are equipped with in shell (1) two ends, and bolt (4) penetrates in sliding sleeve (2) hole of outer casing end and the nut of the other end screws and is integral.

2, expand fixed component entirely according to the described combined type of claim 1, its feature is a frustoconical bevel in the profile of described sliding sleeve of what (2) and nut (3), the cone small end is provided with a garden cylindricality guide surface (7), and the cone outer wall is provided with more than one rotation inhibiting symmetry plane (8).

3, expand fixed component entirely according to the described combined type of claim 1, its feature is provided with equilateral hexagonal guide surface (9) at the inwall two ends of the described shell of what (1), the inwall intermediate section be one with the siphunculus (10) of garden cylindricality guide surface (7) same diameter.

4, expand fixed component entirely according to the described combined type of claim 1, its feature is six equilateral rib frustoconical bevel in the profile of what sliding sleeve (2) and nut (3).