Safety hanging ladder for building construction

Abstract

The utility model relates to a safety hanging ladder for building construction, which belongs to the technical field of building construction equipment and comprises two fixing rods arranged up and down, a hollow box is fixed at the top of the left side of the fixing rod on the upper side, and a stabilizing mechanism for improving the fixing stability between the hanging ladder and a wall body is arranged on the inner wall of the right side of the fixing rod on the upper side. The upper fixing rod and the lower fixing rod are hinged to each other, and positioning mechanisms are arranged on the front side and the rear side of the fixing rod on the lower side. The stabilizing mechanism comprises a double-shaft motor fixed to the inner wall of the right side of the upper side fixing rod, and driving bevel gears are fixed to the outer surfaces of two output shafts of the double-shaft motor. According to the safety hanging ladder for building construction, the extension length of the clamping plate can be adjusted according to walls with different thicknesses, automatic extension and retraction of the clamping plate are achieved through the modes of double-shaft motor driving, gear transmission, threaded connection and the like, the fixing effect between the hanging ladder and the walls is enhanced, and the shaking risk caused by wind power or external force is reduced.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment technology, specifically a construction safety ladder. Background Technology

[0002] In the construction process, hanging ladders are an indispensable tool, widely used by workers to climb to higher positions on building walls. To ensure the safety and work efficiency of construction workers, the design and use of hanging ladders are crucial. Hanging ladders provide construction workers with a convenient access to higher parts of buildings, reducing the time cost of scaffolding erection, and are particularly suitable for temporary or emergency high-altitude operations.

[0003] A search revealed Chinese patent CN221609888U, which discloses a safety ladder for construction, relating to the field of construction equipment technology. The ladder includes vertical poles, climbing rods fixed between two sets of vertical poles, a fixed rod fixed to the top of each vertical pole, an adjusting rod inserted inside the fixed rod, a hook fixed to one end of the adjusting rod, and a screw rotatably mounted inside the fixed rod. The screw surface is threadedly connected to the inside of the adjusting rod. This invention involves a construction worker wearing a safety rope, one end of which is attached to a safety ring. During the ascent, a movable slide moves upwards. At this time, the inclined surface of the movable block and the inclined surface of the triangular groove are misaligned, preventing the movable slide from being stopped. When the worker falls, the movable slide moves downwards, and the bottom plane of the movable block abuts against the bottom plane of the triangular groove, thus stopping and fixing the movable slide, preventing it from moving downwards. This allows the worker to hold onto the safety rope, preventing a fall and improving climbing safety.

[0004] In this invention, the position of the hook is adjusted by rotating the rotating block, but there is no structure for limiting the angle of the rotating block. If the angle of the rotating block changes, the position of the rotating block will change, which will greatly reduce the stability of the ladder. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a construction safety ladder with advantages such as high ladder stability. It solves the problem that adjusting the position of the hook by rotating the rotating block, but without a structure to limit the angle of the rotating block, will cause the position of the rotating block to change if the angle of the rotating block changes, thus greatly reducing the stability of the ladder.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a construction safety ladder, comprising two fixed rods placed vertically, a hollow box fixed to the top left side of the upper fixed rod, and a stabilizing mechanism for improving the stability of the ladder to the wall provided on the inner wall of the right side of the upper fixed rod, the two fixed rods being hinged to each other, and positioning mechanisms provided on both the front and rear sides of the lower fixed rod.

[0007] The stabilizing mechanism includes a dual-axis motor fixed to the inner wall of the right side of the upper fixed rod. The outer surfaces of the two output shafts of the dual-axis motor are each fixed with a driving bevel gear. The left side of the driving bevel gear is meshed with a driven bevel gear. The inner cavity of the driven bevel gear is fixed with a threaded rod. The two ends of the threaded rod are rotatably connected to the inner wall of the left side of the hollow box and the inner wall of the right side of the fixed rod through bearings, respectively. The outer surface of the threaded rod is threaded with a movable plate. The left side of the movable plate is fixed with a linkage plate. The left side of the linkage plate penetrates the hollow box and extends to the outside of the hollow box and is fixed with a clamping plate.

[0008] Furthermore, the cross-sectional shape of the two fixing rods is U-shaped, and multiple pedals are fixed on the opposite side of the front and rear side walls of the inner cavity of the two fixing rods, with rubber pads fixed on the upper surface of the multiple pedals.

[0009] Furthermore, limit grooves are provided on the inner top wall and inner bottom wall of the hollow box, and limit blocks are fixed on the upper and lower sides of the movable plate. The limit blocks move horizontally in the inner cavity of the limit groove.

[0010] Furthermore, through holes are provided at both the front and rear ends of the left side of the hollow box, the cross-sectional shape of the linkage plate is U-shaped, and the size of the inner cavity of the through hole is adapted to the size of the linkage plate.

[0011] Furthermore, the positioning mechanism includes grooves formed on the front and rear sides of the lower fixing rod, a connecting plate fixed between the left and right inner walls of the groove, an electric push rod fixed on the front and rear inner walls of the groove, a moving plate fixed to the piston rod of the electric push rod, a limiting plate fixed to the top of the moving plate, and insert blocks fixed at the left and right ends of the opposite side of the limiting plates on the front and rear sides. Slots are formed on the front and rear sides of the bottom of the upper fixing rod.

[0012] Furthermore, anti-slip handles are fixed to the front and rear ends of the right side of the two fixed rods, and guide grooves are opened on the top of the opposite side of the left and right side walls of the groove cavity.

[0013] Furthermore, guide blocks are fixed on opposite sides of the movable plates on both the front and rear sides. The guide blocks move back and forth linearly within the inner cavity of the guide groove, and the size of the inner cavity of the guide groove is larger than the size of the inner cavity of the groove.

[0014] Furthermore, fixing grooves are provided on both the front and rear sides of the bottom of the upper fixing rod. The size of the inner cavity of the fixing groove is adapted to the size of the limiting plate, and the size of the inner cavity of the slot is adapted to the size of the insert block.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. The construction safety ladder has an adjustable plate extension length that can be adjusted according to wall thickness. Through dual-axis motor drive, gear transmission, and threaded connection, the plate can automatically extend and retract, enhancing the fixation between the ladder and the wall and reducing the risk of swaying caused by wind or external forces.

[0017] 2. The construction safety ladder features a hinged connection between two fixed rods, allowing it to be quickly unfolded when in use and easily folded when not in use, improving work efficiency and facilitating transportation and storage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a side view of the structure of this utility model;

[0020] Figure 3 A schematic diagram of the stabilizing mechanism;

[0021] Figure 4 This is a schematic diagram of the linkage plate.

[0022] Figure 5 This is a schematic diagram of the positioning mechanism;

[0023] Figure 6 This is a schematic diagram of the groove structure.

[0024] In the diagram: 1. Fixed rod, 2. Hollow box, 3. Stabilizing mechanism, 301. Dual-axis motor, 302. Driving bevel gear, 303. Driven bevel gear, 304. Threaded rod, 305. Movable plate, 306. Linkage plate, 307. Locking plate, 308. Limiting groove, 4. Positioning mechanism, 401. Groove, 402. Connecting plate, 403. Electric push rod, 404. Moving plate, 405. Limiting plate, 406. Insert block, 407. Slot, 408. Guide groove, 409. Guide block, 410. Fixed groove, 5. Foot pedal, 6. Through hole, 7. Anti-slip handle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 2 The construction safety ladder in this embodiment includes two fixed rods 1 placed vertically. A hollow box 2 is fixed to the top left side of the upper fixed rod 1. A stabilizing mechanism 3 is provided on the inner wall of the right side of the upper fixed rod 1 to improve the stability of the ladder and the wall. The upper and lower fixed rods 1 are hinged to each other. Positioning mechanisms 4 are provided on both the front and rear sides of the lower fixed rod 1.

[0027] In this embodiment, the cross-sectional shape of the two fixed rods 1 is U-shaped. Multiple foot pedals 5 are fixed on the opposite side of the front and rear side walls of the inner cavity of the two fixed rods 1. Rubber pads are fixed on the upper surface of the multiple foot pedals 5 to increase friction and prevent workers from slipping.

[0028] Please see Figures 3 to 4 To improve the stability between the ladder and the wall, the stabilizing mechanism 3 in this embodiment includes a dual-axis motor 301 fixed to the inner wall of the right side of the upper fixing rod 1. Both output shafts of the dual-axis motor 301 have a driving bevel gear 302 fixed to their outer surfaces. A driven bevel gear 303 is meshed with the left side of the driving bevel gear 302. A threaded rod 304 is fixed to the inner cavity of the driven bevel gear 303. When the dual-axis motor 301 is started, the output shafts of the dual-axis motor 301 rotate, causing the driving bevel gear 302 to rotate. The rotation of the driving bevel gear 302 causes the meshed driven bevel gear 303 to rotate, which in turn causes the threaded rod 304 fixed to its inner cavity to rotate. The two ends of the threaded rod 304 are... The threaded rod 304 is connected to the inner left side of the hollow box 2 and the inner right side of the fixed rod 1 via a bearing. The outer surface of the threaded rod 304 is threaded with a movable plate 305. A linkage plate 306 is fixed to the left side of the movable plate 305. The left side of the linkage plate 306 passes through the hollow box 2 and extends to the outside of the hollow box 2, and a clamping plate 307 is fixed thereon. The rotation of the threaded rod 304 causes the movable plate 305, which is threaded to its surface, to move linearly under the action of the limiting block and the limiting groove 308. The movement of the movable plate 305 causes the linkage plate 306 fixed to it to move to the left. The movement of the linkage plate 306 causes the clamping plate 307 to move to the left, thereby changing the extension length of the clamping plate 307. Then, the extension length of the clamping plate 307 is adjusted according to the thickness of the wall.

[0029] In this embodiment, limit grooves 308 are provided on the inner top wall and inner bottom wall of the hollow box 2. Limit blocks are fixed on both the upper and lower sides of the movable plate 305. The limit blocks move horizontally in the inner cavity of the limit groove 308. The limit blocks and the limit groove 308 can limit the movement of the movable plate 305, so that it can only move in a straight line. Through holes 6 are provided at both the front and rear ends of the left side of the hollow box 2. The cross-sectional shape of the linkage plate 306 is U-shaped, and the size of the inner cavity of the through hole 6 is adapted to the size of the linkage plate 306.

[0030] It should be noted that the automatic extension and retraction of the card plate 307 is achieved through the dual-axis motor 301 drive, gear transmission and threaded connection, which enhances the fixing effect between the hanging ladder and the wall and reduces the risk of swaying caused by wind or external forces.

[0031] Please see Figures 5 to 6 To facilitate carrying the ladder by staff, the positioning mechanism 4 in this embodiment includes grooves 401 on the front and rear sides of the lower fixed rod 1. A connecting plate 402 is fixed between the left and right inner walls of the grooves 401. Electric push rods 403 are fixed on the front and rear inner walls of the grooves 401. A moving plate 404 is fixed to the piston rod of the electric push rod 403. When the ladder is not in use, the upper fixed rod 1 and the lower fixed rod 1 are in contact with each other. When the ladder needs to be used, simply rotate the upper fixed rod 1 until it is in a straight line with the lower fixed rod 1, and then activate the two electric push rods 403. The piston rod of 3 shortens and drives the moving plate 404 to move closer to the fixed rod 1. The top of the moving plate 404 is fixed with a limiting plate 405. The left and right ends of the opposite side of the limiting plates 405 on the front and rear sides are fixed with inserts 406. The bottom of the upper fixed rod 1 is provided with slots 407 on the front and rear sides. The movement of the moving plate 404 drives the limiting plate 405 and the inserts 406 to move, so that the inserts 406 move closer to the slots 407 until the inserts 406 enter the slots 407. This can limit the angle of the upper fixed rod 1, thereby positioning the angle of the upper fixed rod 1.

[0032] In this embodiment, anti-slip handles 7 are fixed at both ends of the right side of the upper and lower fixed rods 1. Guide grooves 408 are opened on the top of the opposite side of the left and right side walls of the inner cavity of the groove 401. Guide blocks 409 are fixed on the opposite side of the front and rear moving plates 404. The guide blocks 409 move back and forth in a straight line in the inner cavity of the guide groove 408. The size of the inner cavity of the guide groove 408 is larger than the size of the inner cavity of the groove 401, which can limit the movement of the moving plate 404.

[0033] Among them, fixing grooves 410 are opened on both the front and rear sides of the bottom of the upper fixing rod 1. The size of the inner cavity of the fixing groove 410 is adapted to the size of the limiting plate 405, and the size of the inner cavity of the slot 407 is adapted to the size of the insert block 406.

[0034] It should be noted that the hinged connection between the two fixed rods 1 allows the ladder to be quickly unfolded when in use and easily folded when not in use, improving work efficiency and facilitating transportation and storage.

[0035] The working principle of the above embodiments is as follows:

[0036] (1) When the ladder is not in use, the upper fixed rod 1 and the lower fixed rod 1 are close together. When the ladder is to be used, simply rotate the upper fixed rod 1 to be in a straight line with the lower fixed rod 1, and then start the two electric push rods 403. The piston rod of the electric push rod 403 shortens and drives the moving plate 404 to move closer to the fixed rod 1. The movement of the moving plate 404 synchronously drives the limiting plate 405 and the insert block 406 to move, so that the insert block 406 moves closer to the slot 407 until the insert block 406 enters the slot 407. This can limit the angle of the upper fixed rod 1, thereby positioning the angle of the upper fixed rod 1.

[0037] (2) When fixing the ladder to the wall, the extension length of the card plate 307 can be adjusted according to the thickness of the wall. By starting the dual-axis motor 301, the output shaft of the dual-axis motor 301 rotates and drives the active bevel gear 302 to rotate. The rotation of the active bevel gear 302 causes the driven bevel gear 303 meshing with it to rotate. The rotation of the driven bevel gear 303 causes the threaded rod 304 fixed in its inner cavity to rotate. The rotation of the threaded rod 304 causes the movable plate 305 threadedly connected to its surface to move linearly under the action of the limiting block and the limiting groove 308. The movement of the movable plate 305 causes the linkage plate 306 fixed with it to move to the left. The movement of the linkage plate 306 causes the card plate 307 to move to the left, thus changing the extension length of the card plate 307. Then, the extension length of the card plate 307 can be adjusted according to the thickness of the wall.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A construction safety ladder, comprising two fixed rods (1) placed vertically, characterized in that: A hollow box (2) is fixed to the top left side of the upper fixed rod (1). A stabilizing mechanism (3) for improving the stability between the hanging ladder and the wall is provided on the inner wall of the upper fixed rod (1). The upper and lower fixed rods (1) are hinged to each other. A positioning mechanism (4) is provided on both the front and rear sides of the lower fixed rod (1). The stabilizing mechanism (3) includes a dual-axis motor (301) fixed on the inner wall of the right side of the upper fixed rod (1). The outer surfaces of the two output shafts of the dual-axis motor (301) are fixed with driving bevel gears (302). The left side of the driving bevel gears (302) is meshed with a driven bevel gear (303). The inner cavity of the driven bevel gears (303) is fixed with a threaded rod (304). The two ends of the threaded rod (304) are rotatably connected to the inner wall of the left side of the hollow box (2) and the inner wall of the right side of the fixed rod (1) through bearings. The outer surface of the threaded rod (304) is threaded with a movable plate (305). The left side of the movable plate (305) is fixed with a linkage plate (306). The left side of the linkage plate (306) penetrates the hollow box (2) and extends to the outside of the hollow box (2) and is fixed with a clamping plate (307).

2. The construction safety ladder according to claim 1, characterized in that: The cross-sectional shape of the two fixing rods (1) is U-shaped. Multiple pedals (5) are fixed on the opposite side of the front and rear side walls of the inner cavity of the two fixing rods (1). Rubber pads are fixed on the upper surface of the multiple pedals (5).

3. The construction safety ladder according to claim 1, characterized in that: Limiting grooves (308) are provided on the inner top wall and inner bottom wall of the hollow box (2). Limiting blocks are fixed on the upper and lower sides of the movable plate (305). The limiting blocks move horizontally in the inner cavity of the limiting groove (308).

4. A construction safety ladder according to claim 1, characterized in that: The hollow box (2) has through holes (6) at both the front and rear ends on the left side. The cross-sectional shape of the linkage plate (306) is U-shaped. The size of the inner cavity of the through hole (6) is adapted to the size of the linkage plate (306).

5. A construction safety ladder according to claim 1, characterized in that: The positioning mechanism (4) includes grooves (401) on the front and rear sides of the lower fixing rod (1). A connecting plate (402) is fixed between the left and right inner walls of the groove (401). An electric push rod (403) is fixed on the front and rear inner walls of the groove (401). A moving plate (404) is fixed on the piston rod of the electric push rod (403). A limiting plate (405) is fixed on the top of the moving plate (404). Insert blocks (406) are fixed on the left and right ends of the opposite side of the limiting plates (405) on the front and rear sides. Slots (407) are opened on the front and rear sides of the bottom of the upper fixing rod (1).

6. A construction safety ladder according to claim 5, characterized in that: Anti-slip handles (7) are fixed at both ends of the right side of the two fixed rods (1) above and below, and guide grooves (408) are opened on the top of the opposite side of the left and right side walls of the inner cavity of the groove (401).

7. A construction safety ladder according to claim 6, characterized in that: Guide blocks (409) are fixed on opposite sides of the movable plates (404) on both the front and rear sides. The guide blocks (409) move back and forth in a straight line in the inner cavity of the guide groove (408). The size of the inner cavity of the guide groove (408) is larger than the size of the inner cavity of the groove (401).

8. A construction safety ladder according to claim 5, characterized in that: Fixing grooves (410) are provided on both the front and rear sides of the bottom of the upper fixing rod (1). The size of the inner cavity of the fixing groove (410) is adapted to the size of the limiting plate (405), and the size of the inner cavity of the slot (407) is adapted to the size of the insert (406).

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