Safety hanging ladder for building construction

Abstract

The utility model discloses a safety hanging ladder for building construction, which relates to the technical field of building construction tools and comprises two telescopic rods and a ladder plate fixedly arranged between the two telescopic rods, circular grooves are formed in the upper ends of the two telescopic rods, rotating rods are rotatably arranged in the two circular grooves, and the ladder plate is fixedly connected with the two telescopic rods. And the upper ends of the two rotating rods are fixedly connected with threaded rods, the upper ends of the two threaded rods are fixedly connected with hooks, the side walls of the two hooks are provided with first anti-falling mechanisms and second anti-falling mechanisms, the side wall of each circular groove is provided with a through hole, and a movable rod is movably arranged in each through hole in a penetrating mode. The rotating rod can be quickly limited through meshing connection of the gear and the arc-shaped rack, so that the angle of the hook can be conveniently adjusted, the upper end of the stop lever can be driven to be attached to the hook under the elastic force action of the torsional spring through the stop lever and the torsional spring, and the hook can be conveniently hung on the hook. Therefore, loosening can be effectively avoided when the hook is connected with the cross rod in a hanging mode.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction tools, in particular to a safety hanging ladder for building construction. Background Art

[0002] During construction work, it is often necessary to hold a ladder for high-altitude work. Safety hanging ladders are a commonly used type of ladders. Existing hanging ladders are fixed with hooks for connecting to walls or protrusions thereon. Since the angle between the hook and the hanging ladder is a fixed value, when connecting to protrusions with some inclined angles, the connection effect is unstable, and the safety of workers when performing construction work on the hanging ladder cannot be ensured.

[0003] After searching, a construction safety hanging ladder with publication number: CN213540229U is found, which includes multiple ladder plates fixedly installed between two telescopic rods, the upper ends of the two telescopic rods are provided with circular grooves, and the two circular grooves are rotatably connected with rotating rods through bearings, the upper ends of the two rotating rods are fixedly installed with hooks, and the side walls of the two rotating rods are evenly provided with multiple limit grooves, the side walls of the two telescopic rods are provided with screw holes, and the two screw holes are respectively communicated with the two circular grooves, and fastening bolts are threadedly connected between the two screw holes and the corresponding two limit grooves.

[0004] The above technical solution has the following shortcomings:

[0005] In the above technical solution, when adjusting the angle of the hook, the tightness of the fastening bolts needs to be adjusted multiple times, which makes the angle adjustment process more complicated, and there is a possibility of loosening after the entire hanging ladder is hung. Utility Model Content

[0006] In view of the above problems existing in the existing safety hanging ladders for construction, the present utility model is proposed.

[0007] Therefore, the purpose of the utility model is to provide a safe hanging ladder for construction, which solves the problem that the tightness of the fastening bolts needs to be adjusted multiple times when adjusting the angle of the hook, thereby making the angle adjustment process more cumbersome and there is a possibility of loosening after the entire hanging ladder is hung.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A construction safety hanging ladder comprises two telescopic rods and a ladder plate fixedly arranged between the two telescopic rods, the upper ends of the two telescopic rods are provided with circular grooves, the interiors of the two circular grooves are rotatably provided with rotating rods, the upper ends of the two rotating rods are fixedly connected with screws, the upper ends of the two screws are fixedly connected with hooks, the side walls of the two hooks are provided with a first anti-slip mechanism and a second anti-slip mechanism, the side walls of each of the circular grooves are provided with a through hole, the interior of each of the through holes is movably penetrated with a movable rod, one end of each movable rod located inside the corresponding circular groove is fixedly connected with an arcuate rack, the rod wall of each rotating rod is fixedly sleeved with a gear, and each of the gears is meshed and connected with the corresponding arcuate rack.

[0010] Preferably, the first anti-slip mechanism includes a stop rod, an axle pin and a U-shaped block, the axle pin is rotatably sleeved on one end of the stop rod, the U-shaped block is fixedly arranged on the side wall of the hook, the axle pin is fixedly arranged inside the U-shaped block and the rod wall is movably sleeved with a torsion spring, and the two ends of the torsion spring are respectively fixedly connected to the axle pin and the U-shaped block.

[0011] Preferably, the second anti-slip mechanism comprises a sleeve and an internally threaded tube, the sleeve is fixedly sleeved on the tube wall of the internally threaded tube, and the internally threaded tube is threadedly sleeved on the rod wall of the screw rod.

[0012] Preferably, a spring is movably sleeved on the rod wall of the movable rod, and two ends of the spring are respectively fixedly connected to the arc-shaped rack and the inner wall of the corresponding circular groove.

[0013] Preferably, one end of the movable rod away from the arc-shaped rack is fixedly connected with a ring. Preferably, a knob is fixedly sleeved on the tube wall of the internally threaded tube.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] The utility model can realize rapid limiting of the rotating rod through the meshing connection of the gear and the arc-shaped rack, so that the angle of the hook can be adjusted conveniently, and the upper end of the blocking rod and the torsion spring can be driven to fit the hook under the elastic force of the torsion spring, so that the hook can be effectively prevented from loosening when the hook is connected to the cross bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] FIG1 is a schematic diagram of the structure of the utility model;

[0018] FIG2 is an enlarged schematic diagram of part A of FIG1 of the present invention; FIG3 is an enlarged schematic diagram of part B of FIG1 of the present invention; FIG4 is an enlarged schematic diagram of part C of FIG2 of the present invention. Explanation of the accompanying drawings:

[0019] 1. Telescopic rod; 2. Ladder; 3. Rotating rod; 4. Screw; 5. Hook; 6. Movable rod; 7. Arc rack; 8. Gear; 9. Stop rod; 10. Axle pin; 11. U-shaped block; 12. Torsion spring; 13. Sleeve; 14. Internally threaded tube; 15. Spring; 16. Ring; 17. Knob. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] The utility model embodiment discloses a safety hanging ladder for building construction.

[0022] The utility model provides a construction safety hanging ladder as shown in Figures 1-4, comprising two telescopic rods 1 and a ladder plate 2 fixedly arranged between the two telescopic rods 1, the upper ends of the two telescopic rods 1 are provided with circular grooves, the interiors of the two circular grooves are rotatably provided with rotating rods 3, the upper ends of the two rotating rods 3 are fixedly connected with screw rods 4, the upper ends of the two screw rods 4 are fixedly connected with hooks 5, the side walls of the two hooks 5 are provided with a first anti-slip mechanism and a second anti-slip mechanism, the side walls of each circular groove are provided with a through hole, the interior of each through hole is movably penetrated with a movable rod 6, one end of each movable rod 6 located in the corresponding circular groove is fixedly connected with an arc-shaped rack 7, the rod wall of each rotating rod 3 is fixedly sleeved with a gear 8, each gear 8 is meshed with the corresponding arc-shaped rack 7, and the meshing connection of the provided gear 8 and the arc-shaped rack 7 can realize the rapid limiting of the rotating rod 3, so that the angle of the hook 5 can be adjusted easily.

[0023] As shown in Figure 1-2 and Figure 4As shown, the first anti-slip mechanism includes a stopper rod 9, an axle pin 10 and a U-shaped block 11. The axle pin 10 is rotatably sleeved on one end of the stopper rod 9, and the U-shaped block 11 is fixedly arranged on the side wall of the hook 5. The axle pin 10 is fixedly arranged inside the U-shaped block 11 and the rod wall is movably sleeved with a torsion spring 12. The two ends of the torsion spring 12 are respectively fixedly connected to the axle pin 10 and the U-shaped block 11. By utilizing the set stopper rod 9 and torsion spring 12, the upper end of the stopper rod 9 can be driven to fit with the hook 5 under the elastic force of the torsion spring 12, so that the hook 5 can be effectively prevented from loosening when the hook 5 is hung with the cross bar.

[0024] As shown in FIG. 1-2, the second anti-slip mechanism includes a sleeve 13 and an internally threaded tube 14.

[0025] 13 is fixedly sleeved on the tube wall of the internal threaded tube 14, and the internal threaded tube 14 is threadedly sleeved with the rod wall of the screw rod 4. The internal threaded tube 14 and the sleeve 13 can block the stop rod 9 to prevent the hook 5 from being squeezed and deformed by the stop rod 9.

[0026] like Figure 3 As shown, the rod wall of the movable rod 6 is movably sleeved with a spring 15, and the two ends of the spring 15 are respectively fixedly connected to the arc-shaped rack 7 and the inner wall of the corresponding circular groove. By using the set spring 15, the arc-shaped rack 7 can be squeezed by the elastic force of the spring 15, so that the arc-shaped rack 7 and the gear 8 can maintain a stable meshing state.

[0027] As shown in Figure 1 and Figure 3 As shown, one end of the movable rod 6 away from the arc-shaped rack 7 is fixedly connected with a ring 16 . The ring 16 can be used to pull the movable rod 6 to move, so that the arc-shaped rack 7 is separated from the gear 8 , thereby adjusting the angle of the hook 5 .

[0028] As shown in FIG. 1-2 , a knob 17 is fixedly sleeved on the tube wall of the internally threaded tube 14 . The knob 17 can be used to drive the internally threaded tube 14 to adjust the position of the sleeve 13 .

[0029] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A construction safety hanging ladder, comprising two telescopic rods (1) and a ladder plate (2) fixedly arranged between the two telescopic rods (1). It is characterized in that The upper ends of the two telescopic rods (1) are each provided with a circular groove, the interior of the two circular grooves is provided with a rotating rod (3) for rotation, the upper ends of the two rotating rods (3) are each fixedly connected to a screw rod (4), the upper ends of the two screw rods (4) are each fixedly connected to a hook (5), the side walls of the two hooks (5) are each provided with a first anti-slip mechanism and a second anti-slip mechanism, the side wall of each circular groove is provided with a through hole, the interior of each through hole is provided with a movable rod (6) for movement, one end of each movable rod (6) located inside the corresponding circular groove is fixedly connected to an arc-shaped rack (7), the rod wall of each rotating rod (3) is fixedly sleeved with a gear (8), and each gear (8) is meshedly connected to the corresponding arc-shaped rack (7).

2. A construction safety hanging ladder according to claim 1, It is characterized in that The first anti-slip mechanism comprises a stop rod (9), an axle pin (10) and a U-shaped block (11); the axle pin (10) is rotatably sleeved on one end of the stop rod (9); the U-shaped block (11) is fixedly arranged on the side wall of the hook (5); the axle pin (10) is fixedly arranged inside the U-shaped block (11) and a torsion spring (12) is movably sleeved on the rod wall; two ends of the torsion spring (12) are respectively fixedly connected to the axle pin (10) and the U-shaped block (11).

3. A construction safety hanging ladder according to claim 1, It is characterized in that The second anti-slip mechanism comprises a sleeve (13) and an internally threaded tube (14); the sleeve (13) is fixedly sleeved on the tube wall of the internally threaded tube (14); and the internally threaded tube (14) is threadably sleeved on the rod wall of the screw rod (4).

4. A construction safety hanging ladder according to claim 1, It is characterized in that A spring (15) is movably sleeved on the rod wall of the movable rod (6), and two ends of the spring (15) are respectively fixedly connected to the arc-shaped rack (7) and the inner wall of the corresponding circular groove.

5. A construction safety hanging ladder according to claim 1, It is characterized in that One end of the movable rod (6) away from the arc-shaped rack (7) is fixedly connected to a circular ring (16).

6. A construction safety hanging ladder according to claim 3, It is characterized in that A knob (17) is fixedly sleeved on the tube wall of the internally threaded tube (14).

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