CN217602040U - Anti-falling device and scaffold - Google Patents
Anti-falling device and scaffold Download PDFInfo
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- CN217602040U CN217602040U CN202221267651.3U CN202221267651U CN217602040U CN 217602040 U CN217602040 U CN 217602040U CN 202221267651 U CN202221267651 U CN 202221267651U CN 217602040 U CN217602040 U CN 217602040U
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Abstract
The utility model discloses a falling protection device and scaffold frame, include: the middle part of the anti-falling block is rotatably hinged on the seat body; the control assembly is arranged on the base body, and the rear end of the anti-falling block is arranged with the control assembly, so that the anti-falling block can only rotate clockwise but not anticlockwise. When the ladder fixed with the scaffold integrally needs to be lifted, the control assembly controls the anti-falling block from the rear end of the anti-falling block, so that the anti-falling block rotates clockwise, the anti-falling pipe is continuously contacted with the inclined bottom surface of the anti-falling block, and the flat top surface of the anti-falling block can be immediately contacted with the bottom surface of the anti-falling pipe under the action of the control assembly after the anti-falling pipe is separated from each anti-falling pipe, so that the impact momentum is reduced; when the ladder fixed with the scaffold falls down, the flat top surface of the anti-falling block is contacted with the bottom of the anti-falling pipe when being lifted, the anti-falling block is controlled not to rotate anticlockwise, the anti-falling stroke is avoided, and the problem that the anti-falling stroke is overlong, the contact impact momentum is overlarge in the anti-falling process in the prior art is solved.
Description
Technical Field
The utility model relates to a falling prevention device and scaffold belongs to scaffold technical field.
Background
When building high-rise building, need use the inserted scaffold to install and protect the construction on the building body, the scaffold body is when going up and down, mainly relies on the ladder and the cooperation of anti-falling device screens of preventing weighing down fixed with the scaffold body to accomplish, and anti-falling device's stroke stability has decided the stability of preventing weighing down the ladder and going up and down.
In the anti-falling device of a scaffold with Chinese patent publication No. CN204475818U, the disclosed technology is that a plurality of cross bars which are regularly distributed are arranged on an anti-falling suspender, an upper swinging clamp and a lower swinging clamp swing between the cross bars, the anti-falling suspender moves downwards, and the upper swinging clamp and the lower swinging clamp are clamped into the positions of the cross bars under the action of a tension spring; although the upper swing clamp can play a role in preventing falling and not descending when in contact with the cross rod, in the process of preventing falling, the lower swing clamp needs to drive the swing block to rotate around the rotating shaft to jump over one cross rod, so that the upper swing clamp can be clamped into the cross rod to form falling prevention contact, and the problem of overlarge falling prevention stroke, contact impact momentum exists.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a falling-preventing device and a scaffold.
The utility model discloses a following technical scheme can realize.
The utility model provides a pair of anti-falling device, include:
the seat body is provided with a mounting through hole on the rear side and a notch on the front side;
the middle part of the falling prevention block is rotatably hinged on the base body, the top surface of the front end of the falling prevention block is a plane, and the bottom surface of the front end of the falling prevention block is an inclined plane;
the control assembly, the control assembly of control assembly installation on the pedestal, prevent weighing down the piece rear end and make with the control assembly installation and prevent weighing down the piece and can only rotate clockwise and can not counter-clockwise rotation.
The control assembly includes:
the rear end of the anti-falling block is provided with an opening, and the clamping shaft is fixedly arranged at the opening at the rear end of the anti-falling block;
the clamping plate is provided with a clamping groove, and the clamping groove of the clamping plate is clamped with the clamping shaft;
an inner sleeve fixed with the clamping plate;
the outer sleeve is sleeved with the inner sleeve in a sliding manner;
the two ends of the buffer spring are fixedly arranged at the bottom of the inner sleeve and in the top of the outer sleeve, and the buffer spring drives the inner sleeve and the outer sleeve to slide relatively;
the outer sleeve is provided with a sliding opening which is in sliding limit fit with the clamping plate, and when the flat top surface of the anti-falling block is contacted with the bottom surface of the anti-falling pipe, the clamping plate is positioned at the top of the sliding opening for limiting;
a top plate fixed with the top of the outer sleeve;
the control assembly further comprises: one end of the reset spring A is fixedly arranged with the inner sleeve, the other end of the reset spring A is fixedly arranged with the staple bolt, and the staple bolt is arranged on the seat body and can slidably penetrate through one end of the top plate to the inner sleeve; the reset spring A is positioned in the middle of the inner diameter of the buffer spring;
the control assembly further comprises: the lifting pull rod is screwed on the base body through threads and is slidably mounted with the other end of the top plate, a return spring B is sleeved outside the lifting pull rod, the bottom end of the return spring B is contacted with the base body, and the top end of the return spring B is contacted with the top plate.
The middle part of the anti-falling block is rotatably hinged on the base body through a rotating shaft.
The base plate is fixed on the bottom surface of the inner side of the base body, and the rotating shaft is installed on the base plate.
The base plate of the base body is fixed with a guide block which is in plane contact with the ladder stand.
A scaffold, comprising:
self body of scaffold
The ladder stand is fixedly connected with the scaffold;
a plurality of anti-falling pipes are fixed on the ladder stand at intervals;
the front end of a falling prevention block on the falling prevention device extends into the falling prevention pipes, the top surface of the falling prevention block contacts with the bottom surfaces of the falling prevention pipes, the inclined length of the bottom surface of the falling prevention block is equal to the spacing distance between the two falling prevention pipes, and the flat top surface of the falling prevention block immediately contacts with the bottom surfaces of the falling prevention pipes after the falling prevention block is separated from one falling prevention pipe.
The beneficial effects of the utility model reside in that: when the ladder fixed with the scaffold integrally needs to be lifted, the control assembly controls the anti-falling block from the rear end of the anti-falling block, so that the anti-falling block rotates clockwise, the anti-falling pipe is continuously contacted with the inclined bottom surface of the anti-falling block, and the flat top surface of the anti-falling block can be immediately contacted with the bottom surface of the anti-falling pipe under the action of the control assembly after the anti-falling pipe is separated from each anti-falling pipe, so that the impact momentum is reduced; when the ladder fixed with the scaffold falls down, the flat top surface of the anti-falling block is contacted with the bottom of the anti-falling pipe when being lifted, the anti-falling block is controlled not to rotate anticlockwise, the anti-falling stroke is avoided, and the problem that the anti-falling stroke is overlong, the contact impact momentum is overlarge in the anti-falling process in the prior art is solved.
Drawings
FIG. 1 is a schematic view of the external structure of the anti-falling device of the utility model in use;
FIG. 2 is a schematic view of the inner structure of the anti-falling device of the utility model in use;
FIG. 3 is a schematic view of the structure of the jacket of the present invention;
in the figure: 1-a seat body; 11-mounting through holes; 12-notches; 13-a seat board; 2-anti-falling block; 21-top surface; 22-bottom surface; 3-a rotating shaft; 4-clamping the shaft; 5-clamping plate; 6-inner sleeve; 7-coating; 71-a sliding port; 8-a buffer spring; 9-a top plate; 10-a return spring a; 31-a staple; 32-lifting the pull rod; 33-a return spring B; 51-climbing a ladder; 52-anti-falling pipe.
Detailed Description
The technical solutions of the present invention are further described below, but the scope of protection claimed is not limited to the described ones.
As shown in fig. 1-3.
The application provides a fall protection device, includes:
the base body 1 which is welded by steel plates and provides a stress base is manufactured, the rear side of the base body 1 is provided with an installation through hole 11 which is fixedly connected with a building body by using an anchor rod, and the front side of the base body 1 far away from the installation through hole 11 is provided with a notch 12 which is clamped with the two sides of the ladder 51;
the middle part of the anti-falling block 2 is rotatably hinged on the seat body 1 through a rotating shaft 3, the top surface 21 of the front end of the anti-falling block 2, which is contacted with the anti-falling pipe 52 arranged on the ladder stand 51 at intervals, is a plane, and the bottom surface 22 of the front end of the anti-falling block 2, which is contacted with the anti-falling pipe 52, is an inclined surface;
the anti-falling device is characterized by further comprising a control component arranged on the base body 1, the rear end of the anti-falling block 2 is arranged with the control component, so that the anti-falling block 2 can only rotate clockwise on the basis of a graph 2 but can not rotate anticlockwise and can realize anti-falling contact with the anti-falling pipe 52, when the ladder 51 fixed with the scaffold integrally needs to be lifted up, the control component controls the rear end of the anti-falling block 2, so that the anti-falling block 2 rotates clockwise, the anti-falling pipe 52 is continuously contacted with the inclined bottom surface 22 of the anti-falling block 2, and the flat top surface 21 of the anti-falling block 2 can be immediately contacted with the bottom surface of the anti-falling pipe 52 under the action of the control component after each anti-falling pipe 52 is separated, so that the impact momentum is reduced; when the ladder 51 fixed with the scaffold falls, the flat top surface 21 of the anti-falling block 2 is in contact with the bottom of the anti-falling pipe 52 when being lifted, so that the anti-falling block 2 is controlled not to rotate anticlockwise, the anti-falling stroke is avoided, and the problem that the anti-falling stroke is too long, and the contact impact momentum is too large in the anti-falling process in the prior art is solved.
The control assembly includes:
the rear end of the anti-falling block 2 is provided with an opening, and the clamping shaft 4 is fixedly arranged at the opening at the rear end of the anti-falling block 2;
the clamping plate 5 is provided with a clamping groove, and the clamping groove of the clamping plate 5 is clamped with the clamping shaft 4;
an inner sleeve 6 fixed with the clamping plate 5 in a welding way;
an outer sleeve 7 which is sleeved with the inner sleeve 6 in a sliding way;
the two ends of the buffer spring 8 are fixedly arranged at the bottom of the inner sleeve 6 and in the top of the outer sleeve 7, and the buffer spring 8 drives the inner sleeve 6 and the outer sleeve 7 to relatively slide;
the outer sleeve 7 is provided with a sliding opening 71 which is in sliding limit fit with the clamping plate 5, and when the flat top surface 21 of the anti-falling block 2 is contacted with the bottom surface of the anti-falling pipe 52, the clamping plate 5 is positioned at the top of the sliding opening 71 for limiting;
a top plate 9 fixed with the top of the outer sleeve 7 in a welding way;
one end of the return spring A10 is fixedly arranged with the inner sleeve 6, the other end of the return spring A10 is fixedly arranged with the clamp 31, and the clamp 31 is arranged on the seat body 1 and can penetrate through one end of the top plate 9 to the inner sleeve 7 in a sliding manner; the return spring A10 is positioned in the middle of the inner diameter of the buffer spring 8;
the lifting pull rod 32 is screwed on the seat body 1 through threads and is slidably mounted with the other end of the top plate 9, a return spring B33 is sleeved outside the lifting pull rod 32, the bottom end of the return spring B33 is contacted with the seat body 1, and the top end of the return spring B33 is contacted with the top plate 9.
In order to provide a stress base for the rotating shaft 3, a seat plate 13 is welded and fixed on the bottom surface of the inner side of the seat body 1, and the rotating shaft 3 is installed on the seat plate 13.
In order to ensure that the ladder stand 51 and the anti-falling device do not deviate in a parallel movement, a guide block 14 is welded and fixed on the seat plate 13 of the seat body 1 to be in plane contact with the ladder stand 51, so that the ladder stand 51 and the anti-falling device move in a parallel state when moving.
A scaffold, comprising: self body of scaffold
A ladder 51 fixedly connected with the scaffold;
a plurality of anti-falling pipes 52 are fixed on the ladder stand 51 at intervals;
the front end of a falling prevention block 2 on the falling prevention device extends into the falling prevention pipes 52, the top surface 21 is contacted with the bottom surfaces of the falling prevention pipes 52, the inclined length of the bottom surface 22 of the falling prevention block 2 is equal to the spacing distance between the two falling prevention pipes 52, and the flat top surface 21 of the falling prevention block 2 is immediately contacted with the bottom surfaces of the falling prevention pipes 52 after the falling prevention pipe 52 is separated from each other.
A construction and use method of a scaffold comprises the following steps:
the method comprises the following steps: an anchor rod penetrates through an installation through hole 11 of the base body 1 to be fixedly connected with a building body;
step two: the two sides of the ladder stand 51 are clamped with the notch 12 on the seat body 1 of the anti-falling device, the front end of the anti-falling block 2 extends into the anti-falling pipe 52, the top surface 21 is contacted with the bottom surface of the anti-falling pipe 52, the clamping plate 5 is positioned at the top of the sliding opening 71 for limiting, and the anti-falling block 2 can not rotate anticlockwise and is in an anti-falling state;
step three: when the ladder 51 fixed by the scaffold needs to be lifted integrally, the ladder 51 is pulled upwards, the anti-falling pipe 52 positioned below the anti-falling block 2 is contacted with the bottom surface 22 of the anti-falling block 2, the anti-falling block 2 rotates around the rotating shaft 3, the inner sleeve 6 slides downwards in the outer sleeve 7 under overcoming the reset spring A10, when the inner sleeve 6 is excessively far away from the outer sleeve 7, under the pulling action of the buffer spring 8, the outer sleeve 7 pulls the top plate 9 to slide downwards on the clamp nail 31 and the lifting pull rod 32 to overcome the displacement generated by the reset spring B33 for supplementation, and the inner sleeve 6 is ensured not to be separated from the outer sleeve 7 all the time; after the anti-falling pipe 52 below the anti-falling block 2 spans the bottom surface 22 of the anti-falling block 2, the inner sleeve 6 is pulled by the reset spring A10 to enable the clamping plate 5 to drive the clamping shaft 4 to drive the anti-falling block 2 to rotate anticlockwise until the bottom surface of the anti-falling pipe 52 is contacted with the flat top surface 21 of the anti-falling block 2, at the moment, the top plate 9 slides to be contacted with the base body 1 under the elastic action of the reset spring B33, the clamping plate 5 is positioned at the top of the sliding opening 71 for limitation, and the anti-falling pipe is immediately in an anti-falling state that the anti-falling block 2 cannot rotate anticlockwise.
The anti-falling block 2 can not skip one anti-falling transverse stop rod in the whole process, and the problem that in the prior art, when the anti-falling process is started, the trigger stop arm needs to drive the connecting block to rotate in the shaft hole to skip one anti-falling transverse stop rod, the anti-falling stop arm and the anti-falling transverse stop rod can form anti-falling contact, and the anti-falling stroke overlong contact impact momentum is too large is solved.
Claims (8)
1. A fall arrest device, comprising:
the seat body (1), the back side of the seat body (1) is provided with an installation through hole (11), and the front side is provided with a notch (12);
the middle part of the anti-falling block (2) is rotatably hinged on the base body (1), the top surface (21) of the front end of the anti-falling block (2) is a plane, and the bottom surface (22) of the front end of the anti-falling block (2) is an inclined plane;
the control assembly, the control assembly of control assembly installation on pedestal (1), prevent weighing down piece (2) rear end and control assembly installation and make prevent weighing down piece (2) can only clockwise rotation and can not anticlockwise rotation.
2. The device of claim 1 wherein: the control assembly includes:
the rear end of the anti-falling block (2) is provided with an opening, and the clamping shaft (4) is fixedly arranged at the opening at the rear end of the anti-falling block (2);
the clamping plate (5) is provided with a clamping groove, and the clamping groove of the clamping plate (5) is clamped with the clamping shaft (4);
an inner sleeve (6) fixed with the clamping plate (5);
an outer sleeve (7) which is sleeved with the inner sleeve (6) in a sliding way;
the two ends of the buffer spring (8) are fixedly arranged at the bottom of the inner sleeve (6) and in the top of the outer sleeve (7), and the buffer spring (8) drives the inner sleeve (6) and the outer sleeve (7) to relatively slide;
the outer sleeve (7) is provided with a sliding opening (71) which is in sliding limit fit with the clamping plate (5), and when the flat top surface (21) of the anti-falling block (2) is contacted with the bottom surface of the anti-falling pipe (52), the clamping plate (5) is positioned at the top of the sliding opening (71) for limit;
a top plate (9) fixed with the top of the outer sleeve (7).
3. The device of claim 2 wherein the control assembly further comprises: one end of the reset spring A (10) is fixedly arranged with the inner sleeve (6), the other end of the reset spring A (10) is fixedly arranged with the staple bolt (31), and the staple bolt (31) is arranged on the seat body (1) and can slidably penetrate through one end of the top plate (9) into the outer sleeve (7); the return spring A (10) is positioned in the middle of the inner diameter of the buffer spring (8).
4. The device of claim 3 wherein the control assembly further comprises: the lifting pull rod (32) is screwed on the base body (1) through threads and is slidably mounted with the other end of the top plate (9), a return spring B (33) is sleeved outside the lifting pull rod (32), the bottom end of the return spring B (33) is contacted with the base body (1), and the top end of the return spring B (33) is contacted with the top plate (9).
5. The device of claim 1 wherein: the middle part of the anti-falling block (2) is rotatably hinged on the base body (1) through a rotating shaft (3).
6. The device of claim 1 wherein: a seat board (13) is fixed on the bottom surface of the inner side of the seat body (1), and the rotating shaft (3) is installed on the seat board (13).
7. Anti-fall device according to claim 1, characterised in that the fixed guide block (14) of the seat plate (13) of the body (1) is in planar contact with the ladder (51).
8. A scaffold, comprising:
the fall arrest device according to any one of claims 1 to 7;
the scaffold body itself;
a ladder stand (51) fixedly connected with the scaffold;
a plurality of anti-falling pipes (52) are fixed on the ladder (51) at intervals;
the front end of a falling prevention block (2) on the falling prevention device extends into the space between the falling prevention pipes (52), the top surface (21) is contacted with the bottom surfaces of the falling prevention pipes (52), the inclined length of the bottom surface (22) of the falling prevention block (2) is equal to the spacing distance between the two falling prevention pipes (52), and the flat top surface (21) of the falling prevention block (2) is immediately contacted with the bottom surfaces of the falling prevention pipes (52) after each falling prevention pipe (52) is separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221267651.3U CN217602040U (en) | 2022-05-25 | 2022-05-25 | Anti-falling device and scaffold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221267651.3U CN217602040U (en) | 2022-05-25 | 2022-05-25 | Anti-falling device and scaffold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217602040U true CN217602040U (en) | 2022-10-18 |
Family
ID=83568712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221267651.3U Active CN217602040U (en) | 2022-05-25 | 2022-05-25 | Anti-falling device and scaffold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217602040U (en) |
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2022
- 2022-05-25 CN CN202221267651.3U patent/CN217602040U/en active Active
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