Retractable wall ladder

Abstract

The utility model discloses a stretchable wall ladder, which relates to the technical field of wall ladders, and includes: a ladder body; an upper fixed component, which is movably connected to the top of the ladder body, and the upper fixed component can rotate around the top of the ladder body; a slide groove component, which is movably connected to the bottom of the ladder body, and the slide groove component can be expanded or retracted at the bottom of the ladder body. The stretchable wall ladder provided by the utility model adds a stretchable angle function. When it is necessary to climb the ladder normally or to climb the ladder with heavy objects, the upper fixed component at the top of the ladder body and the slide groove component at the bottom can be fixed to the wall, and then the slide groove component at the bottom of the ladder body can be pulled outward at a certain angle. In this way, when the ladder is used normally, the worker climbs up at a certain angle to the ground, which can ensure that the center of gravity moves forward, thereby helping to improve the safety of wall use.

Description

Technical Field

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

[0002] A wall ladder is an auxiliary climbing tool installed on the wall, which can assist people to climb to a high position of the wall ladder.

[0003] In the prior art, when the existing wall ladder is installed next to the wall, the wall ladder and the wall surface are parallel. When workers climb the ladder, they are prone to lose their center of gravity and tend to fall backwards. This not only increases the difficulty of climbing the wall ladder, but also increases the safety risk of using the wall ladder, which is difficult to meet actual use needs. For this reason, a stretchable wall ladder is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a stretchable wall ladder to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a stretchable wall ladder, comprising:

[0006] Ladder body;

[0007] An upper fixing assembly, wherein the upper fixing assembly is movably connected to the top of the ladder body, and the upper fixing assembly can rotate around the top of the ladder body;

[0008] A slide slot assembly is movably connected to the bottom of the ladder body, and the slide slot assembly can be expanded or retracted at the bottom of the ladder body.

[0009] Preferably, the slide groove assembly includes a connecting frame movably mounted on the bottom of the outer wall of the ladder body, guide grooves are provided on both sides of the connecting frame, bolt and nut assemblies are fixedly connected to the bottom of both sides of the ladder body, the outer wall of the bolt and nut assembly is movably plugged into the inner side of the guide groove, and the top of the guide groove is provided with a limiting groove bent to one side thereof.

[0010] Preferably, a rotatable wall plate is movably connected to the bottom of the connection frame on the side away from the ladder body, and a reinforcement plate is fixedly connected to the bottom of the connection frame.

[0011] Preferably, a lock assembly is installed at the inner bottom of the ladder body, and a positioning lock hole matching the lock assembly is opened at the bottom of the side wall of the connection frame.

[0012] Preferably, the lock assembly includes a lock seat fixedly connected to the inner side of the ladder body, a telescopic through hole is provided in the middle of the lock seat, a limit column is movably inserted in the telescopic through hole, a return spring is fixedly provided between the outer wall of the limit column and the inner side of the telescopic through hole, one end of the limit column passes through the outer wall of the ladder body and interactively plugged with the inner side of the positioning lock hole, and the other end of the limit column passes through the telescopic through hole port and is fixedly connected to a handle.

[0013] Preferably, the upper fixing assembly includes an articulated seat fixedly connected to both sides of the top of the ladder body, the outer wall of the articulated seat is hinged with a hinge, the end of the hinge away from the articulated seat is fixedly connected to a connecting plate, and the connecting plate is fixedly connected to a reinforcing rib on the side facing the ladder body.

[0014] Technical effects and advantages of the utility model:

[0015] The stretchable wall ladder provided by the utility model has a function of stretching angle. When it is necessary to climb the ladder normally or to climb the ladder with heavy objects, the upper fixing component on the top of the ladder body and the sliding groove component on the bottom can be fixed to the wall, and then the sliding groove component at the bottom of the ladder body can be pulled outwards at a certain angle. In this way, when the ladder is used normally, the worker climbs up at a certain angle to the ground, which can ensure that the center of gravity moves forward, thereby helping to improve the safety of wall use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the three-dimensional structural schematic diagrams of the wall ladder of the utility model in a folded state.

[0017] Figure 2 This is the second three-dimensional structural schematic diagram of the utility model wall ladder in the folded state.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the wall ladder of the utility model in an unfolded state.

[0019] Figure 4 It is a schematic diagram of the structure of the parts of the lock assembly of the utility model.

[0020] Figure 5 For this utility model Figure 2 Schematic diagram of the local enlarged structure at A.

[0021] In the figure: 100, ladder body; 200, upper fixing assembly; 201, hinge seat; 202, hinge; 203, connecting plate; 204, reinforcing rib; 300, slide assembly; 301, bolt and nut assembly; 302, connecting frame; 303, wall plate; 304, reinforcement plate; 305, guide groove; 306, limit groove; 307, positioning lock hole; 400, lock assembly; 401, lock seat; 402, telescopic through hole; 403, limit column; 404, reset spring; 405, handle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides Figure 1-5 The stretchable wall ladder shown includes a ladder body 100, an upper fixing assembly 200 and a slide assembly 300. The upper fixing assembly 200 is movably connected to the top of the ladder body 100, and the upper fixing assembly 200 can rotate around the top of the ladder body 100. The slide assembly 300 is movably connected to the bottom of the ladder body 100, and the slide assembly 300 can be expanded or retracted at the bottom of the ladder body 100. When in use, first ensure that the slide assembly 300 and the upper fixing assembly 200 are fixed to the wall. In the initial state, the ladder body 100 is kept parallel to the wall. When it is needed to be used, the bottom of the ladder body 100 is manually pulled outward to rotate and expand the slide assembly 300. At the same time, the upper fixing assembly 200 cooperates to make the ladder body 100 not parallel to the wall. In this way, when a worker climbs on the ladder body 100, it can be at a certain angle to the ground to ensure that the center of gravity of the worker moves forward, thereby making the worker more stable and safer when climbing.

[0024] Furthermore, a locking assembly 400 is installed at the bottom inner side of the ladder body 100, and a positioning locking hole 307 matching the locking assembly 400 is opened at the bottom of the side wall of the connecting frame 302. The locking assembly 400 is added to the ladder body 100 to cooperate with the positioning locking hole 307 on the connecting frame 302 in the slide assembly 300. The position between the slide assembly 300 and the ladder body 100 can be locked or unlocked by the locking assembly 400 to ensure safety in use. When the slide assembly 300 and the ladder body 100 need to be unfolded, it is only necessary to operate the locking assembly 400 to unlock it.

[0025] In a preferred embodiment: the slide assembly 300 includes a connection frame 302 movably mounted on the bottom of the outer wall of the ladder body 100, and guide grooves 305 are provided on both sides of the connection frame 302. Bolt and nut assemblies 301 are fixedly connected to the bottom of both sides of the ladder body 100. The outer wall of the bolt and nut assembly 301 is movably plugged into the inner side of the guide groove 305. The top of the guide groove 305 is provided with a limit groove 306 bent to one side thereof. The bottom of the connection frame 302 away from the ladder body 100 is movably connected to a rotatable wall plate 303, and the bottom of the connection frame 302 is fixedly connected to a reinforcement plate 304, wherein the wall plate 303 and the wall surface can be connected and fixed by expansion screws, and the wall plate 30 The connecting frame 302 is connected with the connecting frame 302 by bolts and nuts, so that the two can be rotated and fixed. When the connecting frame 302 is folded on the ladder body 100, the bolt and nut assembly 301 on the ladder body 100 is located at the end of the guide slot 305 away from the limiting slot 306. When the connecting frame 302 is unfolded for use, the connecting frame 302 needs to be pulled so that the bolt and nut assembly 301 is located in the limiting slot 306 so that workers can climb on the ladder body 100. In this way, the limiting effect between the limiting slot 306 and the bolt and nut assembly 301 can be utilized to prevent relative displacement between the connecting frame 302 and the ladder body 100, thereby ensuring the stability of the ladder body 100 during use.

[0026] The upper fixing assembly 200 includes an articulated seat 201 fixedly connected to both sides of the top of the ladder body 100, and an articulated member 202 is articulated on the outer wall of the articulated seat 201. The articulated member 202 is fixedly connected to a connecting plate 203 at one end away from the articulated seat 201. A reinforcing rib 204 is fixedly connected to the connecting plate 203 on the side facing the ladder body 100. The connecting plate 203 and the wall surface can also be connected and fixed by expansion screws. The articulated seat 201 and the articulated member 202 are used to make the connecting plate 203 and the ladder body 100 rotatable, so that the ladder body 100 can be rotated and matched during the expansion or contraction of the connecting frame 302 in the slideway assembly 300, so as to ensure the smoothness of the wall ladder as a whole when in use;

[0027] The lock assembly 400 includes a lock seat 401 fixedly connected to the inner side of the ladder body 100, a telescopic through hole 402 is provided in the middle of the lock seat 401, a limit column 403 is movably inserted in the telescopic through hole 402, a return spring 404 is fixedly provided between the outer wall of the limit column 403 and the inner side of the telescopic through hole 402, one end of the limit column 403 passes through the outer wall of the ladder body 100 and is interactively inserted with the inner side of the positioning lock hole 307, and the other end of the limit column 403 passes through the end of the telescopic through hole 402 and is fixedly connected with a handle 405. When the lock assembly 400 is used, it only needs to manually pull the handle 405 outward to drive the limit column 4 03 moves, and at the same time compresses the return spring 404, so that the end of the limit column 403 is pulled out from the positioning lock hole 307 on the connecting frame 302, thereby releasing the restriction between the connecting frame 302 and the ladder body 100, so that the connecting frame 302 can move and unfold on the ladder body 100. When it needs to be folded, it is only necessary to keep the handle 405 in the pulled state, close the connecting frame 302 and the ladder body 100, and then release the handle 405, so that the limit column 403 can automatically pass through the side wall of the ladder body 100 or be inserted into the positioning lock hole 307 on the connecting frame 302 through the return spring 404 to achieve the locking purpose.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Stretchable wall ladder, characterized in that: include: Ladder body (100); An upper fixing assembly (200), wherein the upper fixing assembly (200) is movably connected to the top of the ladder body (100), and the upper fixing assembly (200) can rotate around the top of the ladder body (100); A slide slot assembly (300) is movably connected to the bottom of the ladder body (100), and the slide slot assembly (300) can be expanded or folded at the bottom of the ladder body (100).

2. The extendable wall ladder according to claim 1, characterized in that: The slide slot assembly (300) comprises a connection frame (302) movably sleeved on the bottom of the outer wall of the ladder body (100), and guide slots (305) are provided on both sides of the connection frame (302). Bolt and nut assemblies (301) are fixedly connected to the bottom of both sides of the ladder body (100), and the outer wall of the bolt and nut assembly (301) is movably plugged into the inner side of the guide slot (305), and a limiting slot (306) bent toward one side is provided at the top of the guide slot (305).

3. The extendable wall ladder according to claim 2, characterized in that: A rotatable wall plate (303) is movably connected to the bottom of the connection frame (302) on the side away from the ladder body (100), and a reinforcing plate (304) is fixedly connected to the bottom of the connection frame (302).

4. The extendable wall ladder according to claim 2, characterized in that: A locking assembly (400) is installed at the inner bottom of the ladder body (100), and a positioning locking hole (307) matching the locking assembly (400) is provided at the bottom of the side wall of the connection frame (302).

5. The extendable wall ladder according to claim 4, characterized in that: The lock assembly (400) comprises a lock seat (401) fixedly connected to the inner side of the ladder body (100); a telescopic through hole (402) is provided in the middle of the lock seat (401); a limit column (403) is movably inserted in the telescopic through hole (402); a return spring (404) is fixedly provided between the outer wall of the limit column (403) and the inner side of the telescopic through hole (402); one end of the limit column (403) passes through the outer wall of the ladder body (100) and is interactively inserted with the inner side of the positioning lock hole (307); the other end of the limit column (403) passes through the end of the telescopic through hole (402) and is fixedly connected to a handle (405).

6. The extendable wall ladder according to claim 1, characterized in that: The upper fixing assembly (200) comprises an articulated seat (201) fixedly connected to both sides of the top of the ladder body (100); an articulated member (202) is hingedly connected to the outer wall of the articulated seat (201); an end of the articulated member (202) away from the articulated seat (201) is fixedly connected to a connecting plate (203); and a side of the connecting plate (203) facing the ladder body (100) is fixedly connected to a reinforcing rib (204).

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