CN218090967U

CN218090967U - Anti-falling device for well

Info

Publication number: CN218090967U
Application number: CN202222159718.8U
Authority: CN
Inventors: 赵名武; 秦凯; 杨继位
Original assignee: Chengxincheng Construction Engineering Tianjin Co ltd
Current assignee: Chengxincheng Construction Engineering Tianjin Co ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2022-12-20
Anticipated expiration: 2032-08-17

Abstract

The utility model discloses a well anti-falling device, which comprises an outer ring support, an inner ring support and an elastic pull rod, wherein the outer ring support is coaxially and internally supported and fixed on the well wall, the inner part of the outer ring support is circumferentially distributed, radially and limitedly articulated and axially and elastically connected with one end of a plurality of elastic pull rods, and the other end of each elastic pull rod is all penetratingly articulated on the inner ring support; the outer ring support is of a multi-petal annular splicing structure, and a plurality of hanging boxes are fixedly arranged on the circumferential inner wall of the outer ring support; a plurality of long holes are formed in the hanging box, the long holes are in one-to-one correspondence and penetrate through the inserted elastic pull rods, the inner walls of the long holes are in sliding fit with the outer walls of the elastic pull rods, and the end face side walls of the long holes are in radial limiting hanging connection with the elastic pull rods. The device can effectively improve the rigidity of the anti-falling impact of the anti-falling device for the well, can not cause the impact resistance limit to fall due to aging for a long time, and is particularly suitable for preventing the falling of a deep well.

Description

Anti-falling device for well

Technical Field

The utility model relates to a well protector technical field specifically is a well anti-falling device.

Background

Currently, as the living standard of people increases, underground wells or overground wells are increased, wherein the underground wells comprise sewer wells, catch-basin wells, cable communication wells and the like, and the overground wells are elevator wells of high-rise buildings. When the underground well is in construction or equipment installation and maintenance operation, the underground well inevitably has the condition of personnel underground construction, and the underground well also has the risk of accidents that the well cover is stolen and personnel fall into the underground well due to the shortage of the personnel. Therefore, a matched anti-falling device is generally arranged below the well lid or in the well wall. The existing well anti-falling device adopts a screw to fix an anti-falling net, and the anti-falling net has the problems of reduction of impact resistance limit caused by aging for a long time and insufficient impact rigidity caused by falling of an object with larger self weight resistance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's weak point, provide a well anti-falling device, the device can effectively improve the anti rigidity of falling the impact of well anti-falling device, and can not lead to the anti-impact limit to descend because of ageing for a long time, especially is fit for the deep well and prevents falling the use.

A well anti-falling device comprises an outer ring support, an inner ring support and elastic pull rods, wherein the outer ring support is coaxially and internally supported and fixed on a well wall, the inner part of the outer ring support is circumferentially distributed, radially limited and hung and axially and elastically connected with one ends of a plurality of elastic pull rods, and the other ends of the elastic pull rods penetrate through and are hung on the inner ring support; the outer ring support is of a multi-petal annular splicing structure, and a plurality of hanging boxes are fixedly arranged on the circumferential inner wall of the outer ring support; hang and all seted up a plurality of slot holes on the box, the one-to-one correspondence pierces through grafting elasticity pull rod in this slot hole, the inner wall of slot hole and the outer wall sliding fit of elasticity pull rod, and the terminal surface lateral wall of slot hole radially spacing articulates the elasticity pull rod.

Preferably, the top of the hanging box is opened and communicated with the top opening of the long hole, and the top surface of the hanging box is hinged with a sealing cover for plugging the long hole through a hinge; the side wall of the sealing cover is rotatably connected with a hook which is matched and hung on the outer wall of the hanging box.

Preferably, a plurality of bolt connection lugs and a plurality of anti-theft chain lugs are radially and fixedly arranged on the inner arc surface of the outer ring support, and a plurality of lifting lugs are symmetrically and fixedly arranged on the axial end surface of the top of the outer ring support.

Preferably, both ends of the elastic pull rod are in threaded connection with limiting nuts, one limiting nut is hung on the inner wall of the hanging box at one end of the long hole, and the other limiting nut is hung on the inner wall of the inner ring support.

Preferably, the axial end face of the bottom of the inner ring support is open, and the axial end face of the top of the inner ring support is covered with a pressure bearing disc made of flexible materials.

Preferably, the circumferential outer wall of the inner ring support is fixedly provided with an anti-theft chain hanging lug which is the same as that of the outer ring support, and an anti-theft chain which flexibly connects the inner ring support and the outer ring support into a whole is hung on the anti-theft chain hanging lug.

Preferably, the long hole is formed in one side face, facing the inner ring support, of the hanging box, the long edge of the long hole extends vertically and is larger than the diameter of the elastic pull rod, and the short edge of the long hole is larger than the diameter of the elastic pull rod and is smaller than the diameter of the limiting nut.

The utility model has the advantages and the technical effect be:

the utility model discloses a well anti-falling device, which is fixed on the well wall through the inner support of the outer ring bracket spliced by a plurality of petals, and can drive an expansion pipe into the well wall and the lifting lug after the lifting lug hangs the outer ring bracket to the installation position of the deep well, thereby realizing the coaxial fixation of the outer ring bracket and the well wall; the outer ring support which is spliced by multiple sections is put into a well and then is connected with two bolt connecting lugs which are oppositely arranged through bolts, so that the outer ring support is conveniently and internally supported and fixed in the well wall; one end of the elastic pull rod is hung through the hanging box, and the elastic pull rod is hung through the long hole in a sliding mode, so that elastic yielding and sliding restraint are provided for the torsion of the elastic pull rod and the vertical lifting of the inner ring support; the elastic pull rod is twisted and elastically bent to deform, so that axial elastic support is provided for the inner ring support; and finally, the outer ring support and the inner ring support are connected into a whole through the anti-theft chain hangers and the anti-theft chain, so that on one hand, the anti-theft function is realized, and on the other hand, the anti-theft chain can play a role of anti-falling secondary safety.

Drawings

Fig. 1 is a schematic perspective view (looking down at 45 °) of the present invention;

fig. 2 is a schematic perspective view (45 ° from above, pressure-bearing plate not shown) of the present invention;

fig. 3 is a cross-sectional view (axial view) of the present invention;

fig. 4 is a cross-sectional view (radial view) of the present invention;

in the figure: 1-an outer ring support; 2-a pressure bearing disc; 3, lifting lugs; 4-anti-theft chain hangers; 5-hanging the box; 6-bolt connection lug; 7-inner ring support; 8-an elastic pull rod; 9-sealing the cover; 10-long holes; 11-a limit nut; 12-anti-theft chain.

Detailed Description

For further understanding of the contents, features and effects of the present invention, the following embodiments will be exemplified in conjunction with the accompanying drawings. It should be noted that the present embodiment is illustrative, not restrictive, and the scope of the invention should not be limited thereby.

A well anti-falling device comprises an outer ring support 1, an inner ring support 7 and elastic pull rods 8, wherein the outer ring support is coaxially and internally supported and fixed on a well wall, the inner part of the outer ring support is circumferentially distributed, radially limited and hung and axially and elastically connected with one end of a plurality of elastic pull rods, and the other end of each elastic pull rod penetrates through and is hung on the inner ring support; the outer ring support is of a multi-petal annular splicing structure, and a plurality of hanging boxes 5 are fixedly arranged on the circumferential inner wall of the outer ring support; hang and all seted up a plurality of slot holes 10 on the box, the one-to-one correspondence pierces through grafting elasticity pull rod in this slot hole, the inner wall of slot hole and the outer wall sliding fit of elasticity pull rod, and the terminal surface lateral wall of slot hole radially spacing articulates the elasticity pull rod.

Preferably, the top of the hanging box is opened and communicated with the top opening of the long hole, and the top surface of the hanging box is hinged with a sealing cover 9 for plugging the long hole through a hinge; the side wall of the sealing cover is rotatably connected with a hook which is matched and hung on the outer wall of the hanging box.

Preferably, a plurality of bolt connection lugs 6 and a plurality of anti-theft chain hanging lugs 4 are radially and fixedly arranged on the inner arc surface of the outer ring support, and a plurality of lifting lugs 3 are symmetrically and fixedly arranged on the axial end surface of the top of the outer ring support.

Preferably, both ends of the elastic pull rod are in threaded connection with limiting nuts 11, one limiting nut is hung on the inner wall of the hanging box at one end of the long hole, and the other limiting nut is hung on the inner wall of the inner ring support.

Preferably, the axial end face of the bottom of the inner ring support is open, and the axial end face of the top of the inner ring support is covered with the bearing disc 2 made of flexible materials.

Preferably, the anti-theft chain hangers identical to the outer ring support are fixedly arranged on the circumferential outer wall of the inner ring support, and the anti-theft chain 12 which flexibly connects the inner ring support and the outer ring support into a whole is hung on the anti-theft chain hangers.

Preferably, the long hole is formed in one side face, facing the inner ring support, of the hanging box, the long edge of the long hole extends vertically, the size of the long edge of the long hole is larger than the diameter of the elastic pull rod, and the size of the short edge of the long hole is larger than the diameter of the elastic pull rod and smaller than the diameter of the limiting nut.

In addition, utility model preferred, the shape of outer lane support and inner circle support can be made adaptability according to the cross-sectional shape of well and change, and the cross-sectional shape of outer lane support and inner circle support can be rectangle, square and circular etc..

In order to more clearly describe the embodiments of the present invention, an example is provided below:

the utility model discloses a well anti-falling device, need in the installation earlier by lug hoist and mount outer lane support to well, then personnel go into the well and adjust the orientation of multi-petal formula outer lane support and make the outer lane support constitute the same shape in wall of a well cross-section, then fastening connecting bolt in bolted connection ear to adjusting bolt's connection elasticity guarantees that outer lane support internal stay is fixed on the wall of a well, and the hanging hole of penetratable lug is gone into the expand tube down in the wall of a well if necessary, makes the outer lane support coaxial fixation on the wall of a well. Then will assemble the assembly of the inner circle support and many elastic pull rods that accomplish in advance subaerial and install into the outer lane support inside, need open the closing cap of hanging the box among the installation, then hang the elastic pull rod inside the slot hole to adjust stop nut's elasticity, then seal the closing cap and lock the couple of closing cap. And finally, the anti-theft chain is fixedly connected between the anti-theft chain lugs of the outer ring support and the inner ring support through the anti-theft lock, so that the anti-falling effect is prevented from being lost due to the fact that the inner ring support is stolen.

Finally, the parts of the utility model which are not described adopt the mature products and the mature technical means in the prior art.

The methods disclosed and suggested in the present invention can be implemented by those skilled in the art by appropriately changing the conditions and routes and other links by referring to the contents of the text, and although the methods and manufacturing techniques of the present invention have been described by way of preferred embodiments, it will be apparent to those skilled in the art that the methods and technical routes of the text can be modified or recombined to implement the final manufacturing techniques without departing from the contents, spirit and scope of the present invention. It is expressly intended that all such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the spirit, scope and content of the invention. And it will be understood that modifications and variations can be effected by a person skilled in the art in light of the above teachings and that all such modifications and variations are intended to be within the scope of the appended claims.

Claims

1. A well anti-falling device is characterized in that: the inner ring support is coaxially and internally supported and fixed on a well wall, one end of each elastic pull rod is circumferentially distributed, radially limited and hung and axially and elastically connected to the inner ring support, and the other end of each elastic pull rod penetrates through and is hung on the inner ring support; the outer ring support is of a multi-petal annular splicing structure, and a plurality of hanging boxes are fixedly arranged on the circumferential inner wall of the outer ring support; the hanging box is provided with a plurality of long holes, the long holes are internally in one-to-one correspondence and penetrate through the inserted elastic pull rods, the inner walls of the long holes are in sliding fit with the outer walls of the elastic pull rods, and the end face side walls of the long holes are in radial limiting connection with the elastic pull rods.

2. A well fall arrest device according to claim 1, wherein: the top opening of the hanging box is communicated with the top opening of the long hole, and the top surface of the hanging box is hinged with a sealing cover for plugging the long hole through a hinge; the side wall of the sealing cover is rotatably connected with a hook which is matched and hung on the outer wall of the hanging box.

3. A well fall arrest device according to claim 1, wherein: a plurality of bolt connection lugs and a plurality of anti-theft chain lugs are radially and fixedly arranged on the inner arc surface of the outer ring support, and a plurality of lifting lugs are symmetrically and fixedly arranged on the axial end surface of the top of the outer ring support.

4. A well fall arrest device according to claim 1, wherein: and two ends of the elastic pull rod are respectively in threaded connection with a limiting nut, one limiting nut is hung on the inner wall of the hanging box at one end of the long hole, and the other limiting nut is hung on the inner wall of the inner ring support.

5. A fall arrest device for wells as claimed in claim 1, wherein: the axial end face of the bottom of the inner ring support is open, and the axial end face of the top of the inner ring support is covered with a bearing disc made of flexible materials.

6. A well fall arrest device according to claim 3, wherein: and the anti-theft chain hangers identical to the outer ring support are fixedly arranged on the circumferential outer wall of the inner ring support, and anti-theft chains which flexibly connect the inner ring support and the outer ring support into a whole are hung on the anti-theft chain hangers.

7. A fall arrest device for wells as claimed in claim 4, wherein: the long hole is formed in one side face, facing the inner ring support, of the hanging box, the long edge of the long hole extends vertically, the size of the long edge of the long hole is larger than the diameter of the elastic pull rod, and the size of the short edge of the long hole is larger than the diameter of the elastic pull rod and smaller than the diameter of the limiting nut.