CN2480608Y

CN2480608Y - Opset screw pipe with inner threading and outer ratchet teeth

Info

Publication number: CN2480608Y
Application number: CN 01218810
Authority: CN
Inventors: 胡德箭
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-04-02
Filing date: 2001-04-02
Publication date: 2002-03-06
Anticipated expiration: 2011-04-02

Abstract

The utility model relates to a swelling bolt expansion tube with an internal screw and an external ratchet, and provides a screwed joint element which has wide scope of application, strong versatility, and good running ability. The utility model is a hollow branch pipe with a through hole, one end of which is peripherally provided with several axial elastic grooves. The through hole is a screw hole with an inner screw thread and is provided with a plurality of axial elastic groove-end outer peripheral face of peripheral wall embattle-arranged plural ratchets. The other end of the utility model is extension-provided to the outer with a plurality of stationary fastening blocks.

Description

EXPANSION ANCHOR BOLTS expansion tube with internal thread and outer ratchet

The utility model belongs to the threaded connector parts, particularly a kind of EXPANSION ANCHOR BOLTS expansion tube with internal thread and outer ratchet.

For structural member, machine, equipment etc. are fixedly mounted on concrete foundation, the wall, be usually used as the threaded connector or the plastic expansion pipe of the EXPANSION ANCHOR BOLTS of metal.

EXPANSION ANCHOR BOLTS comprises bolt, expansion tube, plain washer, spring washer and nut.Bolt one end of this EXPANSION ANCHOR BOLTS is provided with outside thread, and its other end extends the conical head that enlarges towards the termination; Its expansion tube is the hollow sleeve that is provided with the corresponding through hole in bolt shank footpath, and one end perisporium is all established several axial elastic troughs; Bolt is arranged in the expansion tube with its male end, and is located at the nut spiral shell on the outside thread of the bolt that stretches out expansion tube.During use, on concrete foundation or wall, be drilled with and the corresponding hole of expansion tube, pack in the hole of concrete foundation or wall wearing the bolt of group and expansion tube mutually again, screw nut, the conical head that enlarges towards the termination by bolt is all established the axial elastic trough end with expansion tube and is enlarged, so that bolt, expansion tube and mounted piece and concrete foundation or wall swelling are integral.

The expansion tube of this EXPANSION ANCHOR BOLTS, by screwing that nut outwards spurs that bolt makes expansion tube axial elastic trough end enlarged-diameter with the bolt conical head and swelling on concrete foundation or wall.So there is following deficiency in actual use:

1, because of the expansion tube periphery is a smooth surface, be subjected to the restriction of the frictional force between itself and concrete foundation or the wall hole, in assembling process, the phenomenon that often has expansion tube to be pulled out takes place.At this moment, the boring assembling of then must doing over again separately.

2, when the swelling expansion tube, often make bolt stretch out long segment length, not only when installing space hour, difficulty is constructed, and often influences the aesthetic property of assembling place.

3, the expansion piping make its axial elastic trough end enlarged-diameter by the conical head of bolt and swelling on concrete foundation or wall, promptly its must with the supporting use of special bolt, so its versatility is restricted.

The plastic expansion piping is the sleeve pipe that is provided with through hole and outer ratchet, and is provided with axial elastic trough in outer ratchet end.During use, on concrete wall or ceiling board, be drilled with and the corresponding hole of expansion tube, again expansion tube is packed in the hole of concrete wall or ceiling board, to screw in for the self tapping of WOOD SCREWS in the expansion tube, the axial elastic trough end that makes expansion tube be provided with outer ratchet end enlarges, so that expansion tube, WOOD SCREWS and assembling set and concrete wall or ceiling board swelling are integral.This plastic expansion pipe only is applicable to small-sized mounted piece usually, and as the installation of fabricated metals, electrical equipment, its using scope is limited.

The purpose of this utility model provides a kind of applied widely, highly versatile, the EXPANSION ANCHOR BOLTS expansion tube with internal thread and outer ratchet that usability is good.

The utility model is the hollow sleeve that is provided with through hole, and one end perisporium is all established several axial elastic troughs; Through hole is the screw that is provided with internal thread; It is provided with several axial elastic trough end perisporium outer circumferential face arrays and is convexly equipped with plural ratchet; Its other end extends several fastening fixture blocks outwardly.

Wherein:

Be provided with the conical surface shape that several axial elastic trough end outer circumferential faces are convergent.

The plural ratchet axial cross section that array is convexly set in axial elastic trough end perisporium outer circumferential face is the triangular-section of drift angle towards conical surface miner diameter end.

The fastening fixture block that extends outwardly is the triangular taper.

The rectangular limit of end face that is triangular taper stopping clamp piece is positioned at the right-angled triangle of Hand of spiral side; The side of end face right-angled triangle right angle avris is that two right angle sides are shared and perpendicular to the right-angled triangle of end face with end face right-angled triangle right angle side respectively.

Because the utility model is the hollow sleeve that is provided with through hole, one end perisporium is all established several axial elastic troughs; Through hole is the screw that is provided with internal thread; It is provided with several axial elastic trough end perisporium outer circumferential face arrays and is convexly equipped with plural ratchet; Its other end extends several fastening fixture blocks outwardly.During use, on concrete foundation or wall, be drilled with diameter and the utility model array and be convexly equipped with the corresponding mounting hole of perisporium outer circumferential face diameter of plural ratchet, again the utility model is packed in the hole of concrete foundation or wall, several axial elastic troughs by its perisporium make the outer circumferential face reduced, and make its fastening fixture block be embedded in the mounting hole periphery; Outside thread and the corresponding standard bolt of the utility model through hole internal thread are screwed in the through hole, several axial elastic troughs by its perisporium are outwards shored the perisporium outer circumferential face, outwards shore simultaneously with the plural ratchet that makes array be convexly set on the outer circumferential face, make the utility model and swelling be fixed on concrete foundation or the wall.Then mounted piece is mounted on the bolt.Because of the utility model is fixed in its swelling on concrete foundation or the wall by the plural ratchet that the radial expansion force and the array of the standard bolt that is spirally connected with it is convexly set on the outer circumferential face, neither the phenomenon that the utility model is pulled out can take place, can be applicable to any place by standard bolt again, applied widely, highly versatile, and keep the aesthetic property of assembling place.Not only applied widely, highly versatile, and usability is good, thus reach the purpose of this utility model.

Fig. 1, be the utility model structural representation side view.

Fig. 2, be among Fig. 1 A to view.

Fig. 3, be the utility model structural representation sectional view.

Below in conjunction with accompanying drawing the utility model is further elaborated.

As Fig. 1, Fig. 2, shown in Figure 3, the utility model is the hollow sleeve that is provided with through hole 11.Through hole 11 is for being provided with the screw of internal thread 111.One end perisporium outer circumferential face 12 is the conical surface shape of convergent, and all establishes several axial elastic troughs 13, and is convexly equipped with plural ratchet 14 in these end perisporium outer circumferential face 12 arrays; Its other end extends several fastening fixture blocks 15 outwardly.

Plural ratchet 14 axial cross sections that array is convexly set in axial elastic trough 13 end perisporium outer circumferential faces 12 are the triangular-section of drift angle towards conical surface miner diameter end 121.

The fastening fixture block 15 that extends outwardly can be the triangular taper, and its end face 151 rectangular limits 152 are positioned at the right-angled triangle of Hand of spiral side; The side 153 of end face 151 right-angled triangle right angle sides 152 sides be two right angle sides respectively with end face 151 right-angled triangle right angle sides 152 shared right-angled triangles perpendicular to end face 151.

During use, on concrete foundation or wall, be drilled with diameter and the utility model array and be convexly equipped with the corresponding mounting hole of perisporium outer circumferential face 12 diameters of plural ratchet 14, again the utility model is packed in the hole of concrete foundation or wall, several axial elastic troughs 13 by its perisporium make outer circumferential face 12 reduced, and make its fastening fixture block 15 that is the triangular taper be embedded in the mounting hole periphery; Outside thread and the utility model through hole 11 internal threads 111 corresponding standard bolts are screwed in the through hole, several axial elastic troughs 13 by its perisporium are outwards shored perisporium outer circumferential face 12, outwards shore simultaneously with the plural ratchet 14 that makes array be convexly set on the outer circumferential face 12, make the utility model and swelling be fixed on concrete foundation or the wall.Then mounted piece is mounted on the bolt.Because of the utility model is fixed in its swelling on concrete foundation or the wall by the plural ratchet 14 that the radial expansion force and the array of the standard bolt that is spirally connected with it is convexly set on the outer circumferential face 12, neither the phenomenon that the utility model is pulled out can take place, can be applicable to any place by standard bolt again, applied widely, highly versatile, and keep the aesthetic property of assembling place.

Claims

1, a kind of EXPANSION ANCHOR BOLTS expansion tube with internal thread and outer ratchet, it is the hollow sleeve that is provided with through hole, one end perisporium is all established several axial elastic troughs; It is characterized in that described through hole is the screw that is provided with internal thread; It is provided with several axial elastic trough end perisporium outer circumferential face arrays and is convexly equipped with plural ratchet; Its other end extends several fastening fixture blocks outwardly.

2, the EXPANSION ANCHOR BOLTS expansion tube with internal thread and outer ratchet according to claim 1 is characterized in that the described conical surface shape that several axial elastic trough end outer circumferential faces are convergent that is provided with.

3, the EXPANSION ANCHOR BOLTS expansion tube with internal thread and outer ratchet according to claim 1 and 2 is characterized in that the plural ratchet axial cross section that described array is convexly set in axial elastic trough end perisporium outer circumferential face is the triangular-section of drift angle towards conical surface miner diameter end.

4, the EXPANSION ANCHOR BOLTS expansion tube with internal thread and outer ratchet according to claim 1 is characterized in that the described fastening fixture block that extends is the triangular taper outwardly.

5, the EXPANSION ANCHOR BOLTS expansion tube with internal thread and outer ratchet according to claim 4 is characterized in that the described rectangular limit of end face that is triangular taper stopping clamp piece is positioned at the right-angled triangle of Hand of spiral side; The side of end face right-angled triangle right angle avris is that two right angle sides are shared and perpendicular to the right-angled triangle of end face with end face right-angled triangle right angle side respectively.