CN2353956Y

CN2353956Y - Structure-improved expansion screw

Info

Publication number: CN2353956Y
Application number: CN 98204966
Authority: CN
Inventors: 林启明
Original assignee: 丁红娟
Priority date: 1998-06-12
Filing date: 1998-06-12
Publication date: 1999-12-15
Anticipated expiration: 2008-06-12

Abstract

The utility model relates to a structure-improved expansion screw, which is composed of a screw rod, a plurality of sleeve pipes sheathed on the outside of the screw rod, a sleeve ring, a spring washer, a screw, etc. The sleeve pipes are the corresponding structure and takes two sleeve pipes as a group. The tube end part corresponding to each sleeve pipe is shaped to a cutting oblique cone. The cutting oblique cones of two sleeve pipes are slopes and mutually correspond and is supported. When a bolt is placed and screwed, cutting inclined pushing surfaces corresponding to two sleeve pipes are pushed and supported. The outer surface of the sleeve pipe fully contacts with the inner wall surface of the drilling, and expanding screws can be fixedly arranged on an inner wall surface of a wall.

Description

Structurally improved setscrew

The utility model relates to a kind of structurally improved setscrew, particularly relate to a kind of except having the inside that can powerful ground spiro lock be fixed in wall surface, outside the use effect that sets firmly facility, in addition, this kind setscrew also can make setscrew be able to reusable structurally improved setscrew optionally from the inner taking-up of wall wall.

As everyone knows, when on people's desire air conditioner that weight is very heavy, the wall that air-conditioning equipment is installed on wall, need at first will be fixedly arranged on earlier in order to the external frame that installs these air conditioners, air-conditioning equipment on the wall of wall, when air conditioner, air-conditioning equipment cover are inserted external frame inside, this external frame is carried thick and heavy air conditioner, air-conditioning equipment, and it is suspended on the wall of wall, and it is come off.Because, before desire is fixedly arranged on external frame on the wall wall, the work that people need measure earlier according to the actual size of external frame, on the wall wall, depend on several drillable positions then, borrow these bore positions and can on wall, hole, and set firmly a setscrew that is commonly called as " gecko " in the hole inside of being obtained, so could borrow these setscrews and external frame is given powerfully and the wall wall is fixed as one, to carry thick and heavy air conditioner, air-conditioning equipment.

As shown in Figure 1, the External view when above-mentioned existing setscrew 10 is unused state, and Figure 2 shows that setscrew 10 overlapped insert the side schematic view of the hole A that is drilled with when inner; As shown in the figure, after existing setscrew 10 gives sheathed penetrating with above-mentioned external frame B, and setscrew 10 stretched respectively insert in the boring A that wall is drilled with, people promptly can instrument swivel bolt 11, and the screw rod 12 that makes setscrew 10 can delay gradually upwards lifting, the bottom of this screw rod 12 is and is the protuberantia shape, when screw rod 12 is slow when gradually upwards promoting, the protuberantia piece 13 of screw rod bottom promptly can outwards support expansion with the plurality of fixed intermediate plate 14A of fixed sleeving 14 sheathed outside the screw rod 12, and force this tingle 14A to be able to do to replace to contact with the internal face of the A that holes powerfully, and then reach setscrew 10 can be fixedly arranged on the wall of wall integratedly, and can slippage.

Yet, when in case setscrew 10 is fixedly arranged on the internal face of boring A, the tingle 14A of this setscrew 10 promptly decides with the internal face embedding clamping of boring A and can't break away from forever, thereby, this moment people if find the position measured of holing not right, when bore position has serious defective such as crooked, people promptly can't finish the fixedly task of external frame, if when a hole location not to the time, will definitely be related all the other set the incorrect of hole location, set new bore position so need rechain, this not only consuming time taking a lot of work, and the residual interior setscrew 10 of former hole that is fixed in is because of pulling out, the screw rod 12 that it protruded will give and expose on the wall and cause indecency, and the inconvenience of being in the way when deriving new installation exercise, this is the existing defective of setscrew 10 on practice, and remains to be improved.

In addition, because existing setscrew 10 is fixing with boring A internal face, just replace with boring A internal face work " single-point type " and contact with the tingle 14A of setscrew 10, its fixed effect is good from replacing mode not as comprehensive contact friction, so existing setscrew 10 also has the phenomenon from the A inwall slippage of holing, this improves part for existing setscrew 10 designs not attain, and it truly has necessity of improvement again.

Main purpose of the present utility model is, overcome the defective of existing existence, and provide a kind of structurally improved setscrew of new structure, make it can be fixed in wall wall inside by powerful spiro lock except having, outside the use effect that sets firmly facility, in addition, this setscrew can also optionally take out from the wall wall is inner, setscrew is repeatedly used, and be unlikely again and make metope stay indecency and hinder the bar head of construction.

The purpose of this utility model is realized by following technological scheme.According to the structurally improved setscrew that the utility model proposes, it mainly is made up of following each member: a screw rod is formed with continuous outside thread around its surface; A plurality of frame sleeve pipes that are sheathed on above-mentioned screw rod outside, it is to be one group with two frame sleeve pipes, and be state mutually for correspondence, the corresponding tube end of above-mentioned this each frame sleeve pipe, all be configured as the cutting tilted conical surface, it is reciprocally corresponding and replace that the formed cutting tilted conical surface of these two frame sleeve pipes is the ramp structure state; One collar; One spring pad volume; One bolt, its inner face is provided with internal thread;

Setscrew by above-mentioned formation, when in its device is gone into the hole that metope is drilled with, using, can make the outer surface of set two frame sleeve pipes do comprehensive contacting with the internal face of boring, to reach the effect that setscrew can powerful be fixedly arranged on the wall internal face, and when people do not use this setscrew, also can optionally be taken out, be reused for people from wall wall inside.

The purpose of this utility model can also further realize by following technical measures.

Aforesaid structurally improved setscrew, wherein said frame sleeve pipe is arranged with on its outer surface and forms complex trace caulking groove rill arranged side by side.

The utility model compared with prior art has tangible advantage and good effect.By above technological scheme as can be known, the structurally improved setscrew of the utility model, it has the inside that can powerful ground spiro lock be fixed in wall surface, also can be optionally takes out from the wall wall is inner, make setscrew be able to reusable effect.Have again on the outer surface of the set frame sleeve pipe of this setscrew, be arranged with and form complex trace caulking groove rill arranged side by side, when its internal face when frame bushing outer surface and boring is made comprehensive rubbing contact, can relend design by these caulking groove rills, and can make this setscrew can be fixedly arranged on the wall internal face, and setscrew is deviate from getting into the cave more powerfully.

In sum, the structurally improved setscrew of the utility model, it is in limited field, technical development space, no matter structurally or bigger improvement all arranged on the function, and have large improvement technically, and produced handy and practical effect, and have the effect of enhancement really, thereby being suitable for practicality more, really is a new and innovative, progressive, practical new design.

Concrete structure of the present utility model is provided in detail by following examples and accompanying drawing thereof.

Fig. 1 is the stereoscopic figure of existing setscrew.

The existing setscrew cover of Fig. 2 is placed in the inner side schematic view of boring.

Fig. 3 is the stereoscopic figure of the utility model setscrew.

Fig. 4 is the exploded perspective view of the utility model setscrew.

Fig. 5 is that the utility model setscrew cover is placed in the inner side schematic view of boring;

Fig. 6 is the side schematic view of the utility model setscrew when contacting with the internal face of boring;

Fig. 7 is the utility model setscrew another embodiment's reference drawing when being two groups with four frame sleeve pipes.

Below in conjunction with accompanying drawing and preferred embodiment, to according to the structurally improved setscrew that the utility model proposes, its concrete structure, feature and effect thereof, describe in detail as after.

As Fig. 3, Fig. 4 and shown in Figure 5, setscrew 20 of the present utility model, it mainly is made up of a screw rod 21, a plurality of members such as frame sleeve pipe 22, a collar 23, a spring washer 24 and a bolt 25 that are sheathed on these screw rod 21 outsides.

Above-mentioned screw rod 21 is formed with continuous outside thread 21A around its surface, and these outside threads 21A can screw togather for the set internal thread 25A of above-mentioned bolt 25 inner faces, and makes this bolt 25 be able to the displacement action that work advances or retreats on screw rod 21.

A plurality of frame sleeve pipes 22, being one group with two frame sleeve pipes as shown in Figure 4 describes as embodiment, or be two groups with four frame sleeve pipes as shown in Figure 7 and describe as another embodiment, it is one group and to be mutually be cutting tilted conical surface 22A with two frame sleeve pipes 22, and make these two frame sleeve pipes 22 formed cutting tilted conical surface 22A be the ramp structure state, and reciprocally corresponding and replace.

As shown in Figure 5, when the utility model setscrew 20 is desired to be installed in metope, be in the hole A that on metope, is drilled with in advance, at first screw rod 21 and two frame sleeve pipes 22 being sheathed on these screw rod 21 outsides are positioned in the A that gets into the cave, external frame B with any hanging object such as air conditioner is placed on the screw rod 21 that is protruded out again, simultaneously the above-mentioned collar 23, spring washer 24 and bolt 25 are placed on this screw rod 21 in regular turn, at this moment, can carry out by the work of adorning setscrew 20 and fixing this external frame B.

As shown in Figure 6, when people's turn bolt 25 makes it when screw rod 21 is done the precession action, can make screw rod 21 do displacement upwards linkedly, push and can force two frame sleeve pipes, 22 pairing cutting tilted conical surface 22A to be replaced mutually, thereby make two frame sleeve pipes 22 can outwards do the action of displacement, thereby make the outer surface of two frame sleeve pipes 22 do comprehensive contacting with the inwall of boring A, because the outer surface of the utility model frame sleeve pipe 22 is to do comprehensive contacting with the internal face of boring A, so can obtain the most vast area of contact and frictional force, make the utility model setscrew 20 brute force be fixedly arranged on the wall internal face thereby reach, and improve existing setscrew 20 only to have the fixedly way of contact of single-point type widely and do not have the defective of firm effect.

Particularly the utility model is on the outer surface of above-mentioned frame sleeve pipe 22, be arranged with and form complex trace caulking groove groove 22B arranged side by side, its objective is when frame sleeve pipe 22 outer surfaces are made comprehensive rubbing contact with the internal face of boring A, can relend design by these caulking groove grooves 22B, and make this expansion helical 20 can be fixedly arranged on the wall internal face, and setscrew is deviate from the A that gets into the cave more powerfully.

In addition, when in people's desire is holed the utility model setscrew 20 A certainly, taking out, people only need oppositely to place bolt 25 so that screw rod 21 descends, the outer surface of two frame sleeve pipes 22 is broken away from the internal face of boring A is loosening, and at this moment, people can take out this setscrew 20, in order to reusing, very convenient, and do not have existing setscrew and can not take out and the defective of residual abutting stem head, so setscrew of the present utility model 20 is very practical.

The setscrew 20 of this case model utility improvement, it can not only be applicable on the vertical metope, and it also can be installed on the ground of level and use, the basis of this basis such as basis, ground that heavy machinery is installed, iron skeleton, pipeline pipe arrangement, and the usefulness such as immobilizing foundation of various civil engineerings, it all can reach desired powerful fixed effect.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims

1. structurally improved setscrew is characterized in that it mainly is made up of following each member:

One screw rod is formed with continuous outside thread around its surface;

A plurality of frame sleeve pipes that are sheathed on above-mentioned screw rod outside, it is to be one group with two frame sleeve pipes, and be state mutually for correspondence, the corresponding tube end of above-mentioned this each frame sleeve pipe, all be configured as the cutting tilted conical surface, it is reciprocally corresponding and replace that the formed cutting tilted conical surface of these two frame sleeve pipes is the ramp structure state;

One collar;

One spring pad volume;

One bolt, its inner face is provided with internal thread;

2. structurally improved setscrew according to claim 1 is characterized in that described frame sleeve pipe, is arranged with on its outer surface to form complex trace caulking groove rill arranged side by side.