Anti-falling device for edge operation

Abstract

The utility model belongs to the field of constructional engineering, and particularly relates to an edge operation anti-falling device which comprises supporting frames on the two sides, an upper connecting rod, a middle connecting rod and a bottom connecting rod are connected between the supporting frames on the two sides, and a handle rod is arranged on the upper connecting rod; a placing frame is fixed at the bottom of the side support frame; a counterweight device is placed in the placing frame; wheels are mounted at one ends of the side supporting frames; a vertical supporting rod is arranged in the middle of the side supporting frame on any side, a transverse supporting plate is arranged perpendicular to the vertical supporting rod, and a safety belt connecting ring is installed on the transverse supporting plate. Side supporting devices are symmetrically arranged on the outer side faces of the side supporting frames provided with the safety belt connecting rings, each side supporting device comprises a fixed plate and a rotating plate, an inclined supporting rod is fixed to each rotating plate, and the inclined supporting rods are prevented from rotating through inverted-U-shaped bolts. When lifted up, the device can be conveniently moved along with a working site, when put down, the device is stopped without depending on the braking function of the wheels, the safety is high, and the stability of the device is further guaranteed through the inclined supporting rods.

Description

Technical Field

[0001] The invention belongs to the field of construction engineering, and in particular relates to an anti-falling device for edge operations. Background Art

[0002] When working at special locations such as the top plate of underground engineering structures, heights exceeding 2 meters are considered high-altitude operations. Therefore, when working at the top edge of the structure, there is a risk of falling from a height, and edge protection is required. However, due to the limitation of the trench excavation width, some construction sites are not suitable for setting up work platforms and edge protection. The traditional solution is to pull a wire rope above the top plate to hang a safety belt. However, for trenches with structures such as steel sheet pile supports, since the support is also located above the top plate, it will cross with the wire rope, so that the safety belt can only move in one direction, which greatly affects the normal construction of the workers. At present, there are also some anti-fall devices for edge operations, but most of them have complex structures and are not easy to move. The anti-fall devices made in the shape of a trolley are mostly four-wheeled trolleys, which only achieve stopping through the brake function of the wheels. However, this method will have the risk of movement when subjected to a large downward force, which is unsafe. Summary of the invention

[0003] The problem to be solved by the present invention is to overcome the shortcomings of the background technology and provide an anti-falling device for edge operations.

[0004] The present invention is achieved through the following technical solutions:

[0005] The lifting of the lifting device is a key issue in the lifting of the lifting device, and the key is to ensure that the lifting of the lifting device is stable and that the lifting of the lifting device is stable. The lifting device can be used to lift the lifting device and the lifting device can be used to lift the lifting device. A safety belt connecting ring is installed; a side supporting device is symmetrically arranged on the outer side surface of the side supporting frame provided with the safety belt connecting ring, the side supporting device includes a fixing plate welded on the outer side surface of the side supporting frame, two nuts A are symmetrically welded on the upper end of the fixing plate, an L-shaped pin passes through the two nuts A, and also includes a rotating plate, two nuts B are symmetrically welded on the upper end of the rotating plate, the L-shaped pin passes through the two nuts B, the two nuts B are located between the two nuts A, the rotating plate can rotate around the L-shaped pin, an oblique support rod is fixed on the rotating plate, the bottom surface of the oblique support rod is flush with the bottom surface of the support frame after it is lowered, a nut C is fixed on the oblique support rod, and also includes an inverted U-shaped pin, one side of the inverted U-shaped pin is inserted into the nut D, the nut D is fixed on the inner side surface of the side supporting frame, the nut D is located above the nut C, and when the oblique support rod is rotated upward to be parallel to the side supporting frame, the other side of the inverted U-shaped pin can be inserted into the nut C.

[0006] Preferably, the side support frame is in an inverted U shape.

[0007] Preferably, the handle rod and the handle sleeve are fixed together by bolts.

[0008] Preferably, the placement frame is a rectangular frame formed by welding angle irons.

[0009] Preferably, one end of the placing frame away from the handle rod extends out of the supporting frame, and the end of the placing frame away from the handle rod is integrally provided with a baffle frame upward, and the upper part of the baffle frame is fixed together with the middle connecting rod.

[0010] Preferably, the counterweight device is a rectangular concrete counterweight plate.

[0011] Preferably, a handle is provided on the upper end of the rectangular concrete counterweight plate.

[0012] Preferably, the wheel has a braking function.

[0013] Preferably, the vertical support rods are vertically connected to the reinforcement rods, and the reinforcement rods are fixed on the support frames on both sides.

[0014] Preferably, the safety belt connecting ring is a U-shaped connecting ring.

[0015] The anti-falling device for edge operations of the present invention can be conveniently moved with the operation site. When working, it does not only rely on the braking function of the wheels for stopping, but has high safety. An oblique support rod is provided on one side of the safety belt to further ensure the stability of the device. At the same time, the oblique support rod is easy to retract, so that the entire anti-falling device can be quickly switched between the moving and stationary states. In addition, the counterweight device is easy to take and place, and can be adjusted according to the situation, which facilitates the movement of the entire anti-falling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the embodiment after the oblique support rods are lowered;

[0017] Figure 2 This is a schematic diagram of the overall structure of the embodiment after the oblique support rod is rotated upward;

[0018] Figure 3 This is a schematic diagram of the structure of this embodiment without the rectangular concrete counterweight plate;

[0019] Figure 4 This is another structural schematic diagram of the embodiment with the rectangular concrete counterweight plate removed from another angle;

[0020] Figure 5 This is a schematic diagram of the structure of this embodiment as viewed from the handle bar side;

[0021] Figure 6 This is a schematic diagram of the top view of the structure of this embodiment;

[0022] Figure 7 A schematic diagram of the framework structure is provided for this embodiment;

[0023] Figure 8 This is a schematic diagram of the structure of a rectangular concrete counterweight plate in this embodiment;

[0024] Fig. 9 This is a schematic diagram of the structure of this embodiment after removing the placement frame and the handle bar;

[0025] Fig.10 This is a partial enlarged structural schematic diagram of the inclined support rod of this embodiment being lowered;

[0026] Fig.11 It is a schematic diagram of the partially enlarged structure after the oblique support rod of this embodiment is rotated upward.

[0027] In the figure, 1 is a side support frame, 2 is an upper connecting rod, 3 is a middle connecting rod, 4 is a bottom connecting rod, 5 is a handle sleeve, 6 is a handle rod, 7 is a bolt, 8 is a placement frame, 9 is a rectangular concrete counterweight plate, 10 is a handle, 11 is a baffle frame, 12 is a wheel, 13 is a vertical support rod, 14 is a horizontal support plate, 15 is a safety belt connecting ring, 16 is a reinforcement rod, 17 is a fixing plate, 18 is a nut A, 19 is an L-shaped pin, 20 is a rotating plate, 21 is a nut B, 22 is an oblique support rod, 23 is a nut C, 24 is an inverted U-shaped pin, and 25 is a nut D. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0029] This embodiment is explained by taking operation on the top plate of a structure as an example. The anti-fall device includes a support frame, which includes two symmetrical side support frames 1. In this embodiment, the side support frames 1 are preferably in an inverted U shape, and the upper parts of the two symmetrical side support frames 1 are connected together by two horizontal upper connecting rods 2. The upper connecting rods 2 are perpendicular to the side support frames 1, and the upper surfaces of the upper connecting rods 2 are flush with the upper surfaces of the side support frames 1. The middle parts of the two side support frames 1 are connected together by two horizontal middle connecting rods 3, and the bottoms of the two side support frames 1 are connected together by a horizontal bottom connecting rod 4, forming a stable support frame as a whole.

[0030] Two parallel handlebar sleeves 5 are fixed on the upper connecting rod 2. The handlebar sleeves 5 pass through the upper connecting rod 2 vertically. The handlebar 6 is sleeved in the handlebar sleeve 5. The handlebar 6 is fixed to the handlebar sleeve 5 by bolts 7. Two wheels 12 are installed at the end of the side support frame 1 away from the handlebar 6. The bottom ends of the wheels 12 are flush with the bottom surface of the support frame, and the wheels 12 have braking kinetic energy. The handlebar 6 and the wheels 12 can move the anti-fall device. When it needs to be moved, the handlebar 6 is lifted up by hand, and the device can be moved by pushing the wheels 12. When it does not need to be moved, the handlebar 6 can be put down. At this time, the support frame is in contact with the ground and the anti-fall device cannot move.

[0031] A placement frame 8 is fixed on the upper surface of the two bottom connecting rods 4 of the support frame. The placement frame 8 is used to place the counterweight device. In this embodiment, the placement frame 8 is preferably a rectangular frame formed by welding angle irons. The counterweight device is preferably a rectangular concrete counterweight plate 9. To facilitate the movement of the counterweight device, a handle 10 is preferably provided on the upper end of the rectangular concrete counterweight plate 9. In order to balance the force on the side of the handle bar 6, the placement frame 8 is preferably extended out of the support frame at one end away from the handle bar 6, and a stop frame 11 is integrally provided upward at the end of the placement frame 8 away from the handle bar 6. The upper part of the stop frame 11 is fixed together with the middle connecting rod 3. The stop frame 11 is used to prevent the placed rectangular concrete counterweight plate 9 from tipping over. The rectangular concrete counterweight plate 9 located in the support frame is blocked by the middle connecting rod 3 or the upper connecting rod 2. The rectangular concrete counterweight plate 9 is higher than the support frame.

[0032] A vertical support rod 13 is provided vertically downward in the middle of the side support frame 1 on either side. The bottom surface of the vertical support rod 13 is flush with the bottom surface of the support frame. A transverse support plate 14 is fixed vertically to the vertical support rod 13. The two ends of the transverse support plate 14 are respectively fixed to the left and right inner sides of the side support frame 1. Safety belt connecting rings 15 are symmetrically installed on the transverse support plates 14 on both sides of the vertical support rod 13. The safety belt connecting ring 15 used in this embodiment is a U-shaped connecting ring. The U-shaped connecting ring is hinged on the transverse support plate 14, and the U-shaped connecting ring is used to connect with the buckle of the safety belt. The installation of the safety belt connecting ring 15 is a conventional technology and will not be repeated here. As a reinforcement device, the vertical support rod 13 is preferably vertically connected to a horizontal reinforcement rod 16, and the reinforcement rod 16 is perpendicular to the side support frame 1, and the reinforcement rod 16 is fixed on the upper lower surface of the support frames 1 on both sides.

[0033] Side support devices are symmetrically arranged on the left and right outer sides of the side support frame 1 provided with the safety belt connection ring 15. The side support devices are located on the outer side of the side support frame 1. Here, the outer side refers to the side away from the anti-fall device. The side support device includes a fixed plate 17 welded on the outer side of the side support frame 1, and two nuts A18 are symmetrically welded on the upper end of the fixed plate 17. It also includes a rotating plate 20, and two nuts B21 are symmetrically welded on the upper end of the rotating plate 20. The two nuts B21 are located between the two nuts A18, and the nuts B21 and the nuts A18 are on the same horizontal line, that is, the nut holes of the nuts B21 and the nuts A18 are coaxial. An L-shaped pin 19 passes through the two nuts A18 and the two nuts B21. The two nuts B21 can rotate around the L-shaped pin 19, and the rotating plate 20 can rotate around the L-shaped pin 19. A slanted support rod 22 is fixed downward on the rotating plate 20, and a nut C23 is fixed in the middle of the upper surface of the slanted support rod 22. When the slanted support rod 22 is lowered, the bottom surface is flush with the bottom surface of the support frame. The slanted support rod 22 is used to further support the entire device and increase the friction with the ground. The side support device also includes an inverted U-shaped latch 24, one side of the inverted U-shaped latch 24 is inserted into the nut D25, and the nut D25 is fixed on the inner side of the side support frame 1. The inner side here refers to the side close to the placement frame 8. The nut D25 is located above the nut C23. When the slanted support rod 22 rotates upward to be parallel to the side support frame 1, the other side of the inverted U-shaped latch 24 can be inserted into the nut C23. At this time, one side of the inverted U-shaped latch 24 is inserted into the nut D25 and the other side is inserted into the nut C23, so that the slanted support rod 22 is fixed. At this time, the inverted U-shaped latch 24 prevents the slanted support rod 22 from rotating downward. When the entire device needs to be moved, the slanted support rod 22 can be quickly recovered.

[0034] When the present invention is used, lift the handle bar 6 to push the device to the work site, then put down the handle bar 6, pull up the inverted U-shaped pin 24 to put down the oblique support rod 22, then put the rectangular concrete counterweight plate 9 into the placement frame 8, connect the worker's safety belt buckle with the safety belt connecting ring 15, and then carry out the top plate operation. When it needs to be moved, first lift out the rectangular concrete counterweight plate 9, then rotate the oblique support rod 22 upward, use the inverted U-shaped pin 24 to fix the oblique support rod 22, and then push the anti-fall device to the next work point.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for preventing falling when working on an edge, characterized in that: The invention comprises a support frame, wherein the support frame comprises two symmetrical side support frames (1), wherein the upper parts of the two side support frames (1) are connected together by a horizontal upper connecting rod (2), the middle parts are connected together by a horizontal middle connecting rod (3), and the bottom parts are connected together by a horizontal bottom connecting rod (4); two parallel handle sleeves (5) are fixedly provided on the upper connecting rod (2), the handle sleeves (5) are perpendicular to the upper connecting rod (2), and a handle rod (6) is sleeved and fixed inside the handle sleeve (5); a frame (8) is fixedly placed on the upper surface of the two bottom connecting rods (4) of the support frame ), a counterweight device is placed in the placement frame (8); a wheel (12) is installed at one end of the side support frame (1) away from the handlebar (6), and the bottom end of the wheel (12) is flush with the bottom surface of the support frame; a vertical support rod (13) is vertically downwardly provided in the middle of the side support frame (1) on either side, and a transverse support plate (14) is provided perpendicular to the vertical support rod (13), and the two ends of the transverse support plate (14) are respectively fixed to the left and right inner sides of the side support frame (1), and a safety belt connecting ring (15) is installed on the transverse support plate (14); the side support frame provided with the safety belt connecting ring (15) A side support device is symmetrically provided on the outer side surface of the side support frame (1), the side support device comprising a fixing plate (17) welded to the outer side surface of the side support frame (1), two nuts A (18) are symmetrically welded to the upper end of the fixing plate (17), an L-shaped latch (19) passes through the two nuts A (18), and a rotating plate (20), two nuts B (21) are symmetrically welded to the upper end of the rotating plate (20), the L-shaped latch (19) passes through the two nuts B (21), the two nuts B (21) are located between the two nuts A (18), and the rotating plate (20) can rotate around the L-shaped latch (19) and rotate during rotation. An oblique support rod (22) is fixed on the plate (20). When the oblique support rod (22) is lowered, its bottom surface is flush with the bottom surface of the support frame. A nut C (23) is fixed on the oblique support rod (22). The plate (20) also includes an inverted U-shaped latch (24). One side of the inverted U-shaped latch (24) is inserted into a nut D (25). The nut D (25) is fixed on the inner side surface of the side support frame (1). The nut D (25) is located above the nut C (23). When the oblique support rod (22) is rotated upward to be parallel to the side support frame (1), the other side of the inverted U-shaped latch (24) can be inserted into the nut C (23).

2. The anti-falling device for edge work according to claim 1, characterized in that: The side support frame (1) is in an inverted U shape.

3. The anti-falling device for edge work according to claim 1, characterized in that: The handle rod (6) and the handle sleeve (5) are fixed together by means of bolts (7).

4. The anti-falling device for edge work according to claim 1, characterized in that: The placement frame (8) is a rectangular frame formed by welding angle irons.

5. The anti-falling device for edge work according to claim 4, characterized in that: One end of the placement frame (8) away from the handle bar (6) extends out of the support frame, and the end of the placement frame (8) away from the handle bar (6) is integrally provided with a stop frame (11) extending upward, and the upper part of the stop frame (11) is fixed together with the middle connecting rod (3).

6. The anti-falling device for edge work according to claim 1, characterized in that: The counterweight device is a rectangular concrete counterweight plate (9).

7. The anti-falling device for edge work according to claim 6, characterized in that: A handle (10) is provided at the upper end of the rectangular concrete counterweight plate (9).

8. The anti-falling device for edge work according to claim 1, characterized in that: The wheel (12) has a braking function.

9. The anti-falling device for edge work according to claim 1, characterized in that: The vertical support rod (13) is vertically connected to the reinforcement rod (16), and the reinforcement rod (16) is fixed on the support frames (1) on both sides.

10. The anti-falling device for edge work according to claim 1, characterized in that: The safety belt connecting ring (15) is a U-shaped connecting ring.

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