Safety protection device for construction of large cantilever sloping roof

Abstract

The utility model relates to a safety protection device for construction of a large cantilever sloping roof, which comprises a cantilever beam which is connected through a plurality of U-shaped ring buckles pre-buried on a wall body, one end of the cantilever beam is provided with a hanging head, the hanging head is connected with a hanging basket through a steel wire rope, the cantilever beam is provided with a fixing frame, and the fixing frame is provided with a steel wire rope. A safety rope used for being fixed to the body of a worker is installed on the fixing frame, a winding disc used for being connected with the safety rope is installed on the top of the fixing frame, a locking assembly used for providing protection during falling is installed on the lower middle portion of the fixing frame, and the worker can be prevented from slipping down or falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of large cantilever sloping roof construction, and more specifically to a safety protection device used for large cantilever sloping roof construction. Background Art

[0002] Cantilever structures are widely used in architecture, including eaves, balconies, stadium stand roofs, station platform roofs, and theater platforms. With the rapid development of technology, in contemporary architecture, the scale of cantilevers is getting larger and larger, and the ways of application are increasing, playing an increasingly important role in creating architectural expression.

[0003] The existing large cantilevered sloping roof extends too far from the wall frame, and the danger during construction will increase exponentially. The existing cantilevered roof construction still chooses to install cantilever beams and scaffolding, and installs dense mesh on the outside of the scaffolding. If the cantilevered part is too long, the scaffolding needs to be built larger, and this is not convenient for the construction of the sloping roof;

[0004] Chinese patent CN112049405A discloses a hanging basket through-the-wall cantilever structure and a method for erecting a hanging basket on a sloping roof. During construction, a hole is reserved at the top of the outer wall, and a cantilever beam passes through the hole. The front end of the cantilever beam is located outside the outer wall and the hanging basket is suspended by a hanging head, and the rear end of the cantilever beam is fixed in the building by a locking structure. It can be quickly installed and disassembled, and the production efficiency can be improved. In this solution, the workers sit in the steel structure hanging basket for construction, but the safety performance of the hanging basket is not enough. When the workers fall, their bodies are easily hit on the steel structure hanging basket. If a fall occurs, the hanging basket cannot provide good protection for the workers. Utility Model Content

[0005] In order to solve the above problems existing in the prior art, the utility model provides a safety protection device for the construction of a large cantilevered sloping roof, which can prevent workers from slipping and falling.

[0006] The technical solution of the utility model is as follows:

[0007] A safety protection device for the construction of a large cantilevered sloping roof comprises a cantilever beam connected by a plurality of U-shaped ring buckles pre-buried in a wall, a hanging head is installed at one end of the cantilever beam, the hanging head is connected to a hanging basket via a steel wire rope, a fixing frame is installed on the cantilever beam, a safety rope for fixing to a worker is installed on the fixing frame, a winding disk for connecting the safety rope is installed on the top of the fixing frame, and a locking assembly for providing protection in case of falling is installed in the middle and lower part of the fixing frame.

[0008] Among them, the locking assembly includes a fixed shaft installed at the bottom of the fixed frame, and sliding grooves are opened on both sides of the fixed frame and above the fixed shaft. Slide blocks are slidably connected to the sliding grooves, and a lifting shaft is rotatably connected between the two slide blocks; one end of the safety rope wound on the winding disk is S-shaped from the bottom of the fixed shaft, bypasses the lifting shaft and extends to the bottom of the fixed frame, and a support member for providing an upward elastic force is provided between the fixed shaft and the lifting shaft. When the tension at the end of the safety rope is greater than the maximum elastic force of the support member, the lifting shaft presses down the fixed shaft and clamps the safety rope to stop it.

[0009] Wherein, the support member includes a plurality of springs arranged between the bottom of the slide block and the bottom wall of the slide groove.

[0010] Wherein, a receiving groove is provided at the bottom of the slide groove, a pressure rod which is slidably matched with the receiving groove is fixedly provided at the bottom of the sliding block, and the spring is located inside the receiving groove.

[0011] A fixing block is installed at the end of the fixed shaft, a regular polygonal clamping block is installed at the end of the lifting shaft, and a clamping groove matching with the clamping block is opened on the top of the fixing block.

[0012] Among them, one side of the clamping block is provided with a plurality of elastic paddles arranged obliquely and circumferentially, and one side of the fixing frame is provided with a side frame, and an inclined plate matched with the elastic paddles is installed on the side frame.

[0013] Wherein, the bottom end of the inclined plate is hinged to the side frame, and a second spring is provided between the other end of the inclined plate and the side frame.

[0014] The utility model has the following beneficial effects:

[0015] The utility model arranges a fixed shaft and a lifting shaft between the safety rope, and the safety rope is arranged on the fixed shaft and the lifting shaft in an S shape. When the lifting shaft drops to the lowest point, it can abut against the fixed shaft. The fixed shaft and the lifting shaft are connected by a propping piece. When the tension at the end of the safety rope becomes larger, the tension will drive the lifting shaft to move downward through the safety rope until the safety rope is stuck. The stuck safety rope will not continue to pay out, which can prevent the staff from slipping and falling.

[0016] The utility model arranges fixed blocks and clamping blocks at the ends of the fixed shaft and the lifting shaft. When the lifting shaft falls, the clamping block will be clamped to the top of the fixed block, so that the fixed shaft and the lifting shaft can stop rotating. During the clamping, the elastic paddle and the inclined plate can reduce the rotation speed of the lifting shaft, reduce the pay-out speed of the safety rope, and further improve the safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2For the utility model Figure 1 The enlarged view of point A in the middle;

[0019] Figure 3 It is a left view of the utility model;

[0020] Figure 4 For the utility model Figure 3 The three-dimensional cross-section view at AA in the middle;

[0021] Figure 5 For the utility model Figure 4 The enlarged view of point B in the middle;

[0022] Figure 6 For the utility model Figure 3 A three-dimensional cross-section view at the middle BB;

[0023] Figure 7 For the utility model Figure 6 Enlarged view of point C in the middle.

[0024] The reference numerals in the figure are as follows:

[0025] 1. Cantilever beam; 2. Hanging basket; 3. Hanging head; 4. Fixed frame; 5. Safety rope; 6. Winding disk; 7. Fixed shaft; 8. Slide groove; 9. Sliding block; 10. Lifting shaft; 11. Spring 1; 12. Receiving groove; 13. Pressure rod; 14. Fixed block; 15. Block; 16. Slot; 17. Elastic pick; 18. Side frame; 19. Inclined plate; 20. Spring 2. DETAILED DESCRIPTION

[0026] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] See also Figures 1 to 7 , the utility model provides a technical solution:

[0028] A safety protection device for the construction of a large cantilevered sloping roof comprises a cantilever beam 1 connected by a plurality of U-shaped ring buckles pre-buried in a wall and a hanging basket 2 connected by a steel wire rope, a hanging head 3 being installed at one end of the cantilever beam 1, a fixing frame 4 being installed on the cantilever beam 1, a safety rope 5 for fixing to a worker being installed on the fixing frame 4, a winding disc 6 for connecting the safety rope 5 being installed on the top of the fixing frame 4, and a locking assembly for providing protection in case of falling being installed at the middle and lower part of the fixing frame 4.

[0029] The utility model installs a fixing frame 4 for fixing the safety rope 5 on the cantilever beam 1, so that the safety rope 5 can be fixed to the worker, and the winding disk 6 is located on the top of the fixing frame 4. One end of the safety rope 5 is fixedly connected to the winding disk 6, and the winding disk 6 is driven to rotate by a motor. The length of the safety rope 5 is limited, and the length only needs to be enough for the workers to use during construction, so as to prevent the safety rope 5 from falling onto other frames when falling. The locking component can lock the safety rope 5 when there is a large pulling force, so that the safety rope 5 can be fixed conveniently to prevent the workers from slipping and falling.

[0030] Specifically, the locking assembly includes a fixed shaft 7 installed at the bottom of the fixed frame 4, and slide grooves 8 are opened on both sides of the fixed frame 4 and above the fixed shaft 7. Slide blocks 9 are slidably connected to the slide grooves 8, and a lifting shaft 10 is rotatably connected between the two slide blocks 9. The safety rope 5 is S-shaped from the bottom of the fixed shaft 7, bypasses the lifting shaft 10 and extends to the bottom of the fixed frame 4. A propping piece for providing an upward elastic force is provided between the fixed shaft 7 and the lifting shaft 10. When the tension at the end of the safety rope 5 is greater than the maximum elastic force of the propping piece, the lifting shaft 10 presses down the fixed shaft 7 and clamps the safety rope 5 to stop it; by setting the fixed shaft 7 and The lifting shaft 10 can be lifted and lowered on the slide groove 8. The safety rope 5 is S-shaped and wound around the fixed shaft 7 and the lifting shaft 10. The expansion piece can provide an upward elastic force for the lifting shaft 10. When the tension below the safety rope 5 is less than the elastic force of the expansion piece, the lifting shaft 10 will not drop, and the safety rope 5 can be pulled to move, which is convenient for the staff to operate. When the tension below the safety rope 5 is greater than the elastic force of the expansion piece, the expansion piece is deformed when the tension is applied, causing the lifting shaft 10 to drop to contact the fixed shaft 7. At this time, the safety rope 5 between the fixed shaft 7 and the lifting shaft 10 will be squeezed to stop the safety rope 5 from paying out, so as to lock the safety rope 5.

[0031] Furthermore, the support member includes a plurality of springs 11 arranged between the slider 9 and the bottom wall of the slide groove 8; by setting the spring 11, the spring 11 is located between the slider 9 and the bottom of the slide groove 8, which can push the lifting shaft 10 above the slider 9 to rise and provide a certain elastic force.

[0032] It is worth mentioning that a receiving groove 12 is provided at the bottom of the slide groove 8, a pressure rod 13 is fixedly provided at the bottom of the slider 9 and is slidably matched with the receiving groove 12, and the spring 11 is located inside the receiving groove 12; by setting the receiving groove 12, the receiving groove 12 is provided at the bottom of the slide groove 8, the pressure rod 13 is fixedly connected to the slider 9, and the end of the pressure rod 13 can be inserted into the receiving groove 12, and the spring 11 can be placed in the receiving groove 12, so that the spring 11 will not be excessively deformed.

[0033] It is worth noting that a fixing block 14 is installed at the end of the fixed shaft 7, and a regular polygonal block 15 is installed at the end of the lifting shaft 10, and a slot 16 matching the block 15 is provided at the bottom of the fixing block 14; by setting the fixing block 14, the fixing block 14 is fixedly connected to the end of the fixed shaft 7, the block 15 is fixedly connected to the end of the lifting shaft 10, and the slot 16 is provided at the bottom of the fixing block 14, and the block 15 can be stuck in the slot 16, thereby further improving the locking effect of the safety rope 5.

[0034] In addition, one side of the block 15 is provided with a plurality of tilted elastic paddles 17, one side of the fixing frame 4 is provided with a side frame 18, and an inclined plate 19 matching the elastic paddles 17 is installed on the side frame 18; by providing the elastic paddles 17, the elastic paddles 17 are tiltedly installed on one side of the block 15, the side frame 18 is installed on one side of the fixing frame 4, and the inclined plate 19 is installed on the side frame 18, the rotation of the lifting shaft 10 can drive the elastic paddles 17 on the side of the block 15 to rotate, and the elastic paddles 17 are tilted. When the lifting shaft 10 falls, the elastic paddles 17 on the side contact with the inclined plate 19 during the rotation process, thereby increasing the resistance of the lifting shaft 10 during rotation and facilitating the locking of the lifting shaft 10.

[0035] It must be mentioned that the bottom end of the inclined plate 19 is hinged to the side frame 18, and a spring 20 is provided between the other end of the inclined plate 19 and the side frame 18; by providing the spring 20, the inclined plate 19 can also be rotated to a certain angle, which can reduce the wear of the elastic paddle 17 and the inclined plate 19.

[0036] The working principle of the above-mentioned safety protection device for large cantilever sloping roof construction is as follows:

[0037] After the cantilever beam 1 is fixed, the hanging head 3 and the fixing frame 4 are fixedly installed to the end of the cantilever beam 1. During construction, the staff first enters the hanging basket 2 and fixes the safety rope 5 to the staff. Then, the hanging basket 2 is moved to the position where construction is required. The staff constructs the large cantilevered inclined roof. When the staff slips, the gravity of the human body will be transmitted to the lifting shaft 10 through the safety rope 5. After the lifting shaft 10 is subjected to a large pulling force, it will overcome the elastic force of the spring 11, and the lifting shaft 10 will fall on the fixed shaft 7. At this time, the safety rope 5 will be stuck between the lifting shaft 10 and the fixed shaft 7. During the descent of the lifting shaft 10, it is still rotating. The lifting shaft 10 will drive multiple elastic paddles 17 on one side to contact the inclined plate 19 through the card block 15. During the contact process, the rotation speed of the rotating shaft will decrease until the bottom of the card block 15 is stuck in the card slot 16. At this time, there will be no relative rotation between the fixed shaft 7 and the lifting shaft 10, which is convenient for locking the safety rope 5.

[0038] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A safety protection device for the construction of a large cantilevered sloping roof, comprising a cantilever beam (1) connected by a plurality of U-shaped ring buckles pre-buried in a wall, a hanging head (3) being installed at one end of the cantilever beam (1), and the hanging head (3) being connected to a hanging basket (2) via a steel wire rope, characterized in that: A fixing frame (4) is installed on the cantilever beam (1), a safety rope (5) for fixing to a worker is installed on the fixing frame (4), a winding disc (6) for connecting the safety rope (5) is installed on the top of the fixing frame (4), and a locking assembly for providing protection in case of falling is installed in the middle and lower part of the fixing frame (4).

2. A safety protection device for construction of a large cantilevered sloping roof as claimed in claim 1, characterized in that: The locking assembly comprises a fixed shaft (7) mounted at the bottom of the fixed frame (4), a slide groove (8) is provided on both sides of the fixed frame (4) and above the fixed shaft (7), a slider (9) is slidably connected to the slide groove (8), and a lifting shaft (10) is rotatably connected between the two sliders (9); one end of the safety rope (5) wound on the winding disk (6) is passed through the lifting shaft (10) in an S shape from the bottom of the fixed shaft (7) and extends to the bottom of the fixed frame (4), and a propping member for providing an upward elastic force is provided between the fixed shaft (7) and the lifting shaft (10), and when the tension at the end of the safety rope (5) is greater than the maximum elastic force of the propping member, the lifting shaft (10) presses down the fixed shaft (7) and clamps the safety rope (5) to stop it.

3. A safety protection device for construction of a large cantilevered sloping roof as claimed in claim 2, characterized in that: The expansion member comprises a plurality of springs (11) arranged between the bottom of the slide block (9) and the bottom wall of the slide groove (8).

4. A safety protection device for construction of a large cantilevered sloping roof as claimed in claim 3, characterized in that: The bottom of the slide groove (8) is provided with a receiving groove (12), the bottom of the slider (9) is fixed with a pressure rod (13) which is slidably matched with the receiving groove (12), and the spring 1 (11) is located inside the receiving groove (12).

5. A safety protection device for construction of a large cantilevered sloping roof as claimed in claim 4, characterized in that: A fixing block (14) is installed at the end of the fixing shaft (7), a regular polygonal clamping block (15) is installed at the end of the lifting shaft (10), and a clamping groove (16) matching with the clamping block (15) is provided at the top of the fixing block (14).

6. A safety protection device for construction of a large cantilevered sloping roof as claimed in claim 5, characterized in that: A plurality of elastic paddles (17) arranged obliquely and circumferentially are provided on one side of the clamping block (15), a side frame (18) is provided on one side of the fixing frame (4), and an inclined plate (19) matching the elastic paddles (17) is mounted on the side frame (18).

7. A safety protection device for construction of a large cantilevered sloping roof as claimed in claim 6, characterized in that: The bottom end of the inclined plate (19) is hinged to the side frame (18), and a second spring (20) is provided between the other end of the inclined plate (19) and the side frame (18).

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