Ladder for building construction

Abstract

The utility model relates to the technical field of buildings, in particular to a ladder for building construction. The extension ladder comprises a supporting ladder, the inner side of the supporting ladder is connected with an extension ladder in a sliding mode, a locking structure is arranged at the bottom end of one side of the supporting ladder, a moving structure is arranged on one side of the locking structure and used for driving the extension ladder to slide on the inner side of the supporting ladder, and a limiting structure is arranged on one side of the top of the supporting ladder. One side of the limiting structure is in sliding connection with the extension ladder. According to the ladder for building construction provided by the utility model, the length of the device can be adjusted as required through the design of a movable structure, so that the construction ladder can be flexibly used under various building heights and construction progresses; and through the design of the limiting structure and the locking structure, the extension ladder cannot accidentally slide back to the inner side of the supporting ladder after sliding and extending in the supporting ladder, so that workers can be prevented from accidentally falling from the construction ladder, and the risk of industrial accidents is reduced.

Description

Technical Field

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

[0002] Construction ladders play an important role in the construction industry, especially in the construction of high-rise and super-high-rise buildings. As the height of buildings increases, traditional vertical transportation methods such as scaffolding and temporary ladders can no longer meet construction needs. Therefore, construction ladders have been widely used as an efficient and safe vertical transportation tool. The design of construction ladders needs to take into account factors such as the height of the building, the structural form, the construction period, and the number of construction workers. At the same time, it is also necessary to consider the requirements of the construction ladder's load-bearing capacity, stability, safety, etc.

[0003] For example, a Chinese utility model patent (CN215927235U) discloses a ladder for construction, which solves the following problems: the traditional straight ladder is less safe when in use. Once a construction worker slips on the ladder, he or she may tilt to the side away from the ladder and fall off the ladder. The ground at the construction site is made of concrete, so if a construction worker falls from the ladder onto the concrete ground, it will cause serious injuries.

[0004] The device includes two groove-shaped vertical rods, the grooves of the vertical rods are arranged inwardly, the bottom of the grooves of the vertical rods are connected to the cross rods, a first through groove is opened on one of the side walls of the vertical rods along the length direction, two rubber blocks abutting against each other are symmetrically arranged in the first through groove, a hanging plate is arranged in the vertical rod, a stopper is connected to the side of the hanging plate close to the rubber block, the stopper abuts against the surface of the two rubber blocks facing away from the hanging plate, a notch that can hang the cross rod is opened on the side of the hanging plate facing away from the rubber block, a tying device for tying a human body is connected to the hanging plate, and the tying device is arranged on the side of the notch of the hanging plate facing the cross rod.

[0005] When using the above technology, it was found that the following technical problems exist in the prior art: the device has no elongation structure, resulting in a fixed height of the device, and thus cannot be flexibly adjusted according to the construction progress and needs, affecting the construction efficiency. For this reason, we designed a ladder for construction to provide another technical solution to the above technical problems. Utility Model Content

[0006] Based on this, it is necessary to provide a ladder for construction in view of the above technical problems to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A ladder for construction comprises a supporting ladder, an extension ladder being slidably connected to the inner side of the supporting ladder, a locking structure being provided at the bottom end of one side of the supporting ladder, a moving structure being provided on one side of the locking structure, the moving structure being used to drive the extension ladder to slide on the inner side of the supporting ladder, a limiting structure being provided on one side of the top of the supporting ladder, one side of the limiting structure being slidably connected to the extension ladder, the limiting structure being used to limit the relative sliding of the extension ladder and the supporting ladder.

[0009] As a preferred embodiment of the ladder for construction provided by the utility model, the locking structure includes a support plate, a motor, a worm, a worm gear and a connecting rod, the upper and lower ends of the bottom of one side of the support ladder are fixed with support plates, the sides of the two support plates close to each other are rotatably connected with a worm, a motor is fixed to the top of one of the support plates, the output end of the motor is fixed to the worm, the inner side of the support ladder is rotatably connected with a connecting rod, a worm gear is fixed to one end of the outer side of the connecting rod, and the worm gear is meshingly connected with the worm.

[0010] As a preferred embodiment of the ladder for construction provided by the utility model, the movable structure includes a first bevel gear, a second bevel gear, a rotating column and a screw rod, one end of the inner side of the supporting ladder is rotatably connected to the rotating column, the outer side of the rotating column is fixed with a second bevel gear, one side of the connecting rod is fixed with a first bevel gear, the first bevel gear and the second bevel gear are meshed and connected, the first bevel gear and the second bevel gear are both rotatably connected to the supporting ladder, a screw rod is fixed to the top of the rotating column, and the screw is threadedly connected to the extension ladder.

[0011] As a preferred embodiment of the ladder for construction provided by the utility model, the limiting structure includes a rotating stick, a cam and a blocking mechanism, a rotating stick is rotatably connected to one side of the top of the supporting ladder, a cam is fixed to the outside of the rotating stick, the cam is slidably connected to the extension ladder, and a blocking mechanism is provided on one side of the top of the supporting ladder.

[0012] As a preferred embodiment of the ladder for construction provided by the utility model, the blocking mechanism includes a blocking stick, a sliding rod and a spring, a sliding rod is fixed to the inner side of one end of the top of the supporting ladder, the outer side of the sliding rod is slidably connected to the blocking stick, the outer side of the sliding rod is sleeved with a spring, a blocking stick is fixed to one side of the spring, the other side of the spring is fixed to the supporting ladder, the blocking stick is slidably connected to the supporting ladder, and the blocking stick is fit-connected to the cam.

[0013] As a preferred embodiment of the ladder for construction provided by the utility model, a rectangular hole is opened on one side of the top of the support ladder, and the support ladder is slidably connected to the stop rod through the rectangular hole.

[0014] As a preferred embodiment of the construction ladder provided by the utility model, a plurality of rectangular grooves are provided on one side of the extension ladder, and the extension ladder is slidably connected with a cam via the rectangular grooves.

[0015] As a preferred embodiment of the construction ladder provided by the utility model, rectangular grooves are provided at both ends of the inner side of the support ladder, and the support ladder is slidably connected to the extension ladder through the two rectangular grooves.

[0016] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0017] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0018] The utility model provides a construction ladder. The device is designed with a movable structure so that the length of the device can be adjusted as needed, so that it can adapt to working surfaces of different heights, thereby making the construction ladder flexible to use under various building heights and construction progresses;

[0019] The device uses a limiting structure and a locking structure to prevent the extension ladder from accidentally sliding back to the inside of the supporting ladder after it slides and extends inside the supporting ladder, thereby preventing workers from accidentally falling from the construction ladder and reducing the risk of work-related accidents. It provides an additional safety barrier and increases the overall stability of the construction ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of a ladder for construction use according to the utility model;

[0022] Figure 2 This is a side view of a ladder for construction of the utility model;

[0023] Figure 3 This is a schematic diagram of the sliding of an extension ladder for construction ladders of the utility model;

[0024] Figure 4 It is a schematic diagram of an extension ladder for construction ladder of the utility model;

[0025] Figure 5It is a schematic diagram of a ladder support ladder for construction use according to the utility model;

[0026] Figure 6 This is a schematic diagram of the connection between a worm and a worm wheel of a ladder for construction according to the utility model;

[0027] Figure 7 This is a schematic diagram of the connection between a rotating rod and a cam of a ladder for construction according to the utility model;

[0028] Figure 8 The utility model is a schematic diagram of the connection between a slide bar and a spring of a ladder for construction.

[0029] In the figure: 1. support ladder; 2. extension ladder; 3. support plate; 4. motor; 5. worm; 6. worm wheel; 7. connecting rod; 8. first bevel gear; 9. second bevel gear; 10. rotating column; 11. screw; 12. rotating rod; 13. cam; 14. stop rod; 15. sliding rod; 16. spring. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] As described in the background art, the device has no elongated structure, resulting in a fixed height of the device, which cannot be flexibly adjusted according to construction progress and needs, thus affecting construction efficiency.

[0032] In order to solve this technical problem, the utility model provides a ladder for building construction.

[0033] Specifically, please refer to Figure 1-Figure 8 A ladder for construction specifically includes: a supporting ladder 1, an extension ladder 2 is slidably connected to the inner side of the supporting ladder 1, a locking structure is provided at the bottom end of one side of the supporting ladder 1, a moving structure is provided on one side of the locking structure, the moving structure is used to drive the extension ladder 2 to slide on the inner side of the supporting ladder 1, a limiting structure is provided on one side of the top of the supporting ladder 1, one side of the limiting structure is slidably connected to the extension ladder 2, and the limiting structure is used to limit the relative sliding of the extension ladder 2 and the supporting ladder 1.

[0034] The utility model provides a construction ladder. The device is designed with a movable structure so that the length of the device can be adjusted as needed, so that it can adapt to working surfaces of different heights, thereby making the construction ladder flexible to use under various building heights and construction progresses;

[0035] The device is designed with a limiting structure and a locking structure so that the extension ladder 2 will not accidentally slide back to the inside of the supporting ladder 1 after sliding and extending inside the supporting ladder 1, thereby preventing workers from accidentally falling from the construction ladder and reducing the risk of work-related accidents. It provides an additional safety barrier and increases the overall stability of the construction ladder.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] Reference Figure 1-Figure 8 A ladder for construction includes a supporting ladder 1, an extension ladder 2 is slidably connected to the inner side of the supporting ladder 1, a locking structure is arranged at the bottom end of one side of the supporting ladder 1, a moving structure is arranged on one side of the locking structure, the moving structure is used to drive the extension ladder 2 to slide on the inner side of the supporting ladder 1, a limiting structure is arranged on one side of the top of the supporting ladder 1, one side of the limiting structure is slidably connected to the extension ladder 2, and the limiting structure is used to limit the relative sliding of the extension ladder 2 and the supporting ladder 1.

[0039] The locking structure includes a support plate 3, a motor 4, a worm 5, a worm wheel 6 and a connecting rod 7. The upper and lower ends of the bottom of one side of the support ladder 1 are fixed with support plates 3, and the sides of the two support plates 3 close to each other are rotatably connected with the worm 5. The top of one of the support plates 3 is fixed with a motor 4, and the output end of the motor 4 is fixed to the worm 5. The inner side of the support ladder 1 is rotatably connected with the connecting rod 7, and a worm wheel 6 is fixed to one end of the outer side of the connecting rod 7. The worm wheel 6 and the worm 5 are meshingly connected, so that the locking structure can drive the screw 11 to rotate.

[0040] The moving structure includes a first bevel gear 8, a second bevel gear 9, a rotating column 10 and a screw 11. One end of the inner side of the support ladder 1 is rotatably connected to the rotating column 10, and the second bevel gear 9 is fixed to the outer side of the rotating column 10. The first bevel gear 8 is fixed to one side of the connecting rod 7. The first bevel gear 8 and the second bevel gear 9 are meshed and connected. The first bevel gear 8 and the second bevel gear 9 are both rotatably connected to the support ladder 1. A screw 11 is fixed to the top of the rotating column 10, and the screw 11 is threadedly connected to the extension ladder 2, so that the moving structure can drive the extension ladder 2 to slide inside the support ladder 1.

[0041] The limiting structure includes a rotating rod 12, a cam 13 and a blocking mechanism. The rotating rod 12 is rotatably connected to one side of the top of the supporting ladder 1, and the cam 13 is fixed to the outside of the rotating rod 12. The cam 13 is slidably connected to the extension ladder 2. A blocking mechanism is provided on one side of the top of the supporting ladder 1, so that the limiting structure can limit the extension ladder 2 from accidentally sliding inside the supporting ladder 1.

[0042] The blocking mechanism includes a blocking stick 14, a sliding rod 15 and a spring 16. The sliding rod 15 is fixed to the inner side of one end of the top of the supporting ladder 1, the outer side of the sliding rod 15 is slidably connected to the blocking stick 14, the outer side of the sliding rod 15 is sleeved with the spring 16, the blocking stick 14 is fixed to one side of the spring 16, and the other side of the spring 16 is fixed to the supporting ladder 1, the blocking stick 14 is slidably connected to the supporting ladder 1, and the blocking stick 14 is fit-connected to the cam 13, so that the blocking mechanism can prevent the cam 13 from sliding.

[0043] A rectangular hole is provided on one side of the top of the support ladder 1 , and the support ladder 1 is slidably connected to the stop rod 14 through the rectangular hole, so that the support ladder 1 and the stop rod 14 can be stably connected.

[0044] A plurality of rectangular grooves are formed on one side of the extension ladder 2 , and the extension ladder 2 is slidably connected to the cam 13 through the rectangular grooves, so that the cam 13 can be slidably connected to the inner side of the extension ladder 2 .

[0045] Rectangular grooves are provided at both ends of the inner side of the support ladder 1 , and the support ladder 1 is slidably connected to the extension ladder 2 via the two rectangular grooves, so that the extension ladder 2 can be slidably connected to the inner side of the support ladder 1 .

[0046] The utility model provides a construction ladder. The device is designed with a movable structure so that the length of the device can be adjusted as needed, so that it can adapt to working surfaces of different heights, thereby making the construction ladder flexible to use under various building heights and construction progresses;

[0047] The device is designed with a limiting structure and a locking structure so that the extension ladder 2 will not accidentally slide back to the inside of the supporting ladder 1 after sliding and extending inside the supporting ladder 1, thereby preventing workers from accidentally falling from the construction ladder and reducing the risk of work-related accidents. It provides an additional safety barrier and increases the overall stability of the construction ladder.

[0048] The use process of a construction ladder provided by the utility model is as follows: the user moves the device to the construction site, and then performs construction work through the climbing device. If the height is not enough, the user slides the stop stick 14 and compresses the spring 16, so that the stop stick 14 is disconnected from the cam 13, and then the cam 13 is rotated along the rotating stick 12, thereby disengaging the cam 13 from the sliding connection with the extension ladder 2. The user energizes the motor 4 to rotate, and the output end of the motor 4 drives the worm 5 to rotate. Since one side of the worm 5 is meshedly connected with the worm wheel 6, the rotation of the worm 5 drives the worm wheel 6 to rotate, thereby driving the connecting rod 7 and the first bevel gear 8 to rotate. Since one side of the first bevel gear 8 is meshedly connected with the second bevel gear 9, the rotation of the first bevel gear 8 drives the second bevel gear 9 to rotate, thereby driving the rotating column 10 and the screw 11 rotates, and since the outer side of the screw rod 11 is threadedly connected to the extension ladder 2, the rotation of the screw rod 11 drives the extension ladder 2 to slide on the inner side of the supporting ladder 1, and then the extension ladder 2 slides and rises and falls on the inner side of the supporting ladder 1. After completing the height adjustment, the user rotates the cam 13 to restore the sliding connection between the cam 13 and the extension ladder 2, and the user releases the stop rod 14. Under the elastic force of the spring 16, the spring 16 pushes the stop rod 14 to return to its original position, so that the stop rod 14 can prevent the cam 13 from moving out of the extension ladder 2, thereby ensuring that the extension ladder 2 will not accidentally slide back to the inside of the supporting ladder 1, and thus can effectively prevent tools, materials and other items from sliding or falling from the construction ladder, avoiding safety hazards at the construction site. The utility model helps to improve construction efficiency, ensure the safety of workers, and maintain order and stability at the construction site.

[0049] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A ladder for construction, comprising a support ladder (1), characterized in that: The inner side of the support ladder (1) is slidably connected to an extension ladder (2); a locking structure is provided at the bottom end of one side of the support ladder (1); a moving structure is provided on one side of the locking structure, and the moving structure is used to drive the extension ladder (2) to slide on the inner side of the support ladder (1); a limiting structure is provided on one side of the top of the support ladder (1); one side of the limiting structure is slidably connected to the extension ladder (2); and the limiting structure is used to limit the relative sliding of the extension ladder (2) and the support ladder (1).

2. A construction ladder according to claim 1, characterized in that: The locking structure comprises a support plate (3), a motor (4), a worm (5), a worm wheel (6) and a connecting rod (7); the support plate (3) is fixed to the upper and lower ends of the bottom of one side of the support ladder (1); the two support plates (3) are rotatably connected to the sides close to each other; the motor (4) is fixed to the top of one of the support plates (3); the output end of the motor (4) and the worm (5) are fixed; the inner side of the support ladder (1) is rotatably connected to the connecting rod (7); the worm wheel (6) is fixed to one end of the outer side of the connecting rod (7); the worm wheel (6) and the worm (5) are meshingly connected.

3. A construction ladder according to claim 2, characterized in that: The movable structure comprises a first bevel gear (8), a second bevel gear (9), a rotating column (10) and a screw rod (11); one end of the inner side of the support ladder (1) is rotatably connected to the rotating column (10); the outer side of the rotating column (10) is fixed with the second bevel gear (9); one side of the connecting rod (7) is fixed with the first bevel gear (8); the first bevel gear (8) and the second bevel gear (9) are meshingly connected; the first bevel gear (8) and the second bevel gear (9) are both rotatably connected to the support ladder (1); the top of the rotating column (10) is fixed with a screw rod (11); the screw rod (11) is threadedly connected to the extension ladder (2).

4. A construction ladder according to claim 1, characterized in that: The limiting structure comprises a rotating rod (12), a cam (13) and a blocking mechanism; one side of the top of the support ladder (1) is rotatably connected to the rotating rod (12); the outer side of the rotating rod (12) is fixed with a cam (13); the cam (13) and the extension ladder (2) are slidably connected; and a blocking mechanism is provided on one side of the top of the support ladder (1).

5. A construction ladder according to claim 4, characterized in that: The blocking mechanism comprises a blocking rod (14), a sliding rod (15) and a spring (16); the sliding rod (15) is fixed on the inner side of one end of the top of the support ladder (1); the outer side of the sliding rod (15) is slidably connected to the blocking rod (14); the outer side of the sliding rod (15) is sleeve-connected to the spring (16); the blocking rod (14) is fixed to one side of the spring (16); the other side of the spring (16) is fixed to the support ladder (1); the blocking rod (14) is slidably connected to the support ladder (1); and the blocking rod (14) is fittedly connected to the cam (13).

6. A construction ladder according to claim 5, characterized in that: A rectangular hole is provided on one side of the top of the support ladder (1), and the support ladder (1) is slidably connected to the stop rod (14) via the rectangular hole.

7. A construction ladder according to claim 4, characterized in that: A plurality of rectangular grooves are provided on one side of the extension ladder (2), and the extension ladder (2) is slidably connected to the cam (13) via the rectangular grooves.

8. A construction ladder according to claim 1, characterized in that: Rectangular grooves are provided at both ends of the inner side of the support ladder (1), and the support ladder (1) is slidably connected to the extension ladder (2) via the two rectangular grooves.

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