CN201011087Y

CN201011087Y - Hidden conical telescopic anchoring member

Info

Publication number: CN201011087Y
Application number: CNU2007201056090U
Authority: CN
Inventors: 王井源
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-15
Filing date: 2007-01-15
Publication date: 2008-01-23
Anticipated expiration: 2017-01-15

Abstract

The utility model relates to a fastener used for fastening suspender on external vertical face of a building. The utilty model aims to provide an anchoring fastener which is characterized in convenient fixing and fastening connection, simple structure, easy manufacture and low cost. The technical proposal is that the latent taper shrinking clip comprises a screw, a nut and an extension member, the two ends of the screw are provided with a screw thread, a registration mast and a conical surface; the extension member takes a bushing shape, one end of the extension member forms a plurality of distending pieces because of having a plurality of parallel and equispaced openings. The registration mast is capable of being embedded in the opening, the inside diameter of the extension member matches with the outside diameter of the screw, an expansion joint is made at the circumference of the extension member, the number of the registration mast and the conical surface is the same as the number of the opening, the registration mast and the conical surface are mutually distantly and equably arranged along the circumference direction, the width of the distending piece is smaller than the width of the conical surface. The radial size of one end of the distending piece of the extension member is smaller than the size of the other side, each distending piece is provided with internal grooves.

Description

Latent taper telescopic anchoring spare

Technical field

The utility model relates to a kind of building fixation device, is particularly useful for the securing member of the hanger on the fixed building beyond the region of objective existence facade.

Background technology

It is more and more to adopt stone curtain wall to decorate in the existing building facade, makes the Back-bolt type stone material dry suspending be widely used.And the anchoring piece requisite connection equipment that is the Back-bolt type stone material dry suspending.Existing anchoring piece (promptly common alleged expansion bolt) generally comprises screw rod, nut and extensible member; One end of screw rod is made the conical surface and a reference column is arranged, and the other end is shaped on screw thread; Extensible member is a sleeve-shaped, and its axial end forms several expanding plates, casing inner diameter and screw rod fit because of having some parallel and uniform openings (reference column can embed in the opening).Anchoring piece inserts in the hole of stone material or building surface and screws nut during use, the expanding plate of extensible member lower end is promptly exerted pressure by the conical surface end of screw rod and is opened toward the external diameter direction in hole, because be subjected to the restriction of hole wall, anchoring piece just tightens together with the stone material that is inserted, thereby obtains needed anti-pulling intensity.Because in concrete construction, it is consistent that the pore size that is bored on the stone material can't reach, the expansion ratio of the expanding plate of extensible member is then fixed; The problem of bringing thus is: if the aperture is big slightly, expanding plate pair will reduce with the hole wall expansionary force, and corresponding the reducing of anti-pulling intensity of anchoring piece just do not reach needed soundness and safety in the curtain wall construction, thus the potential safety hazard of bringing.

The utility model content

The purpose of this utility model provides a kind of improvement of anchoring piece, and this anchoring piece should be able to overcome the deficiency of above-mentioned background technology, have install convenient, the characteristics that are connected firmly, and simple in structure, easy to manufacture, cost is also low.

The technical solution adopted in the utility model is: latent taper telescopic anchoring spare comprises screw rod, nut and extensible member; An axial end of screw rod is shaped on screw thread, the circumferential surface of the screw rod other end is shaped on the reference column and the conical surface, extensible member is a sleeve-shaped, the one end forms several expanding plates because of having some parallel and uniform openings, described reference column is embedded in the opening slidably, the external diameter fit of the internal diameter of extensible member and screw rod; Be shaped on a shrinkage joint parallel with the circumference bus on the circumference of described extensible member, this seam extends the circumferential wall part that runs through whole extensible member.

The quantity of the described reference column and the conical surface is identical with open amount, and these reference columns and the conical surface evenly distribute along the circumferencial direction space, and the width of described expanding plate is less than the width of the conical surface.

The radial dimension of expanding plate one end of described extensible member is less than the radial dimension of the other end.

Be shaped on inner groovy on described each expanding plate.

Owing to be shaped on the shrinkage joint on the extensible member of the present utility model, when being installed, anchoring just has certain telescopic resilience (having adjustment leeway), can be applicable to the situation of pore size inconsistent (in general bore error scope).If the aperture is big slightly, after inserting in the hole, extensible member still can fit with hole wall; If the aperture is slightly little, the shrinkage joint can be because of being dwindled (diameter of extensible member is corresponding to be reduced) in the process that extensible member inserts in the hole by pressing, and makes extensible member still can insert in the hole smoothly (because stretchable sheet wall portion is thinner, can the spalling hole wall when inserting in the hole); Like this, though pore size is inconsistent, the expanding plate that screws extensible member lower end behind the nut is by the tapered end of the screw rod hole wall of still exerting pressure effectively after opening of exerting pressure, guarantee to reach due anti-pulling intensity, thereby guaranteed construction needed soundness, safety and construction quality, also made installation convenient more.In addition, structure of the present utility model is also very simple, and it is easy again to make, and cost is also low.

Description of drawings

Fig. 1 is a main TV structure schematic diagram of the present utility model.

Fig. 2 is the main TV structure schematic diagram of the screw rod in the utility model.

Fig. 3 is the plan structure schematic diagram of the screw rod in the utility model.

Fig. 4 is the main TV structure schematic diagram of the extensible member in the utility model.

Fig. 5 is the plan structure schematic diagram of the extensible member in the utility model.

Fig. 6 be in the utility model extensible member look up structural representation.

The specific embodiment

As shown in the figure, latent taper telescopic anchoring spare comprises screw rod 1, nut 2 and extensible member 3, preferably adds Upper gasket 4 during use; By Fig. 2, Fig. 3 as can be known: an end of screw rod is shaped on screw thread 1-1, the circumferential surface of the other end is shaped on several reference columns 1-2 and several conical surfaces 1-3, and these reference columns and the conical surface evenly distribute along the circumferencial direction space and (show among the figure that reference column 1-2 and conical surface 1-3 respectively have three; Quantity also can be determined as required separately), the end face 1-4 at the bottom of the screw rod is circular; These three reference column 1-2 outer surfaces are that the circumference with end face 1-4 is positioned at same circumferential surface; These three conical surface 1-3 are to the changeover portion surface of end face 1-4 from the surface of thread segment.Extensible member 3 is a sleeve-shaped, and the one end forms several (showing three among the figure) expanding plate 3-2 after having several (showing three among the figure) parallel and uniform opening 3-1; For cooperating with screw rod effectively, the width of expanding plate 3-2 should be less than the width of described conical surface 1-3, and the width of opening 3-1 also should be greater than the width of described reference column 1-2; The internal diameter of extensible member also with screw rod external diameter fit.In addition, be shaped on a shrinkage joint 3-3 parallel with the circumference bus on the circumference of described extensible member, this seam extends the circumferential wall part that runs through whole extensible member.Because can doing the adjusting of certain limit, the effect of shrinkage joint 3-3, the radial dimension of described extensible member change.

The radial dimension of expanding plate one end of described extensible member so that insert in the hole fast, makes things convenient for installation work less than the radial dimension (i.e. the big shape of top handle) of the other end.

From confined state shown in Figure 1 as can be known; In the nut screwing clamping process, screw rod and extensible member are done axial relative motion, and reference column 1-2 is embedded in slippage among the opening 3-1 (opening 3-1 is equivalent to chute); And after expanding plate 3-2 is subjected to the resistance thrust of conical surface 1-3, to the bending of external diameter direction and open gradually, obviously can effectively and produces pressing between the hole wall, and then obtain required anti-pulling intensity.

Also be pointed out that: each leading portion 3-2-1 and back segment 3-2-2 (being provided with inner groovy 3-2-3 between leading portion 3-2-1 and the back segment 3-2-2) that upholds sheet 3-2 has the effect that pairing utilizes; Owing to inner groovy 3-2-3 is arranged, upholds easier the opening of sheet 3-2; And back segment 3-2-2 is under the cooperation of reference column, can be along with pore size is regulated automatically, uphold the bottommost in hole with the top that guarantees extension sheet 3-2, the big stress surface of contact surface is many like this, increase anti-pulling intensity greatly, thereby reached tautness, anti-pulling intensity, loosening, the optimum efficiency that can freely stretch.In addition, the utility model is owing to be provided with the shrinkage joint, can absorb the spalling active force that produces because of expanding with heat and contract with cold to stone material, and can resist the stress that earthquake shock and decorative cover are produced by wind action effectively, increased anti-seismic performance, can make curtain wall more firm, safer, even more ideal.

Need to prove in addition: because screw rod one end is evenly distributed with several reference columns along the circumferencial direction space, at nut screwing clamping, reference column 1-2 in opening 3-1 in the slipping, when the reference column top moves to the bottom of extensible member opening, nut just can't further be tightened, make that upholding sheet 3-2 stops further opening (define the bending to the outer diameter of extension sheet and open scope) to the bending of external diameter direction, thereby avoided stone material too to open by the phenomenon of spalling because of upholding sheet.

Because the conical surface in the utility model is covered by upholding sheet, is in hidden state, so latent taper telescopic anchoring spare by name.

Claims

1. latent taper telescopic anchoring spare comprises screw rod (1), nut (2) and extensible member (3); An axial end of screw rod is shaped on screw thread (1-1), the circumferential surface of the screw rod other end is shaped on the reference column (1-2) and the conical surface (1-3), extensible member is a sleeve-shaped, the one end forms several expanding plates (3-2) because of having as if thousand parallel and uniform openings (3-1), described reference column is embedded in the opening slidably, the external diameter fit of the internal diameter of extensible member and screw rod; It is characterized in that being shaped on a shrinkage joint parallel with the circumference bus (3-3) on the circumference of described extensible member, this seam extends the circumferential wall part that runs through whole extensible member.

2. latent taper telescopic anchoring spare according to claim 1, the quantity that it is characterized in that the described reference column (1-2) and the conical surface (1-3) is identical with open amount, these reference columns and the conical surface evenly distribute along the circumferencial direction space, and the width of described expanding plate is less than the width of the conical surface.

3. latent taper telescopic anchoring spare according to claim 1 and 2, the radial dimension of expanding plate one end that it is characterized in that described extensible member is less than the radial dimension of the other end.

4. latent taper telescopic anchoring spare according to claim 3 is characterized in that being shaped on described each expanding plate inner groovy (3-2-3).