A movable ladder device

Abstract

This invention relates to the field of construction site technology and discloses a movable ladder device comprising a support assembly, which includes a support frame and a support plate disposed on one side of the bottom of the support frame; a telescopic assembly disposed on the top side wall of the support frame, which includes multiple interconnected telescopic steps and a support member connected to the bottom side wall of any one of the telescopic steps; an adjustment assembly disposed at the bottom end of the support frame and cooperating with the inner wall of the support frame, which includes a rotating platform connected to a rotating component; and a displacement assembly including casters fixedly connected to the rotating component. The advantages of this invention are that the length of the ladder can be adjusted arbitrarily, allowing construction in various areas to be carried out using only one ladder, facilitating the movement of the ladder, and enabling switching between a displacement state and a fixed state.

Description

Technical Field

[0001] This invention relates to the field of construction site technology, and in particular to a ladder frame device that is easy to move. Background Technology

[0002] When carrying out work on a construction site, ladders are often used to carry out construction in high areas. Currently, our scaffolding is erected by personnel according to the height and length. However, in reality, there are many places on our site that require scaffolding to be erected, with varying heights and lengths. Conventional scaffolding is not suitable or convenient for these areas. There are many points that need to be erected, which leads to a waste of human resources. In addition, ladders are not easy to move. When construction is needed in some locations, the defects in the location make it impossible to set up the ladder stably, which is not conducive to the construction work of the workers. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the above-mentioned problems in the prior art, the present invention is proposed.

[0005] The purpose of this invention is to provide a ladder device that is easy to move, in order to solve the problems that the length of the ladder cannot be adjusted during construction, and that a large number of ladders need to be set up to complete the construction of various areas, which is inconvenient to move.

[0006] To address the technical problems mentioned above, such as the inability to adjust the length of ladders during construction, the need to construct a large number of ladders to complete construction in various areas, and the inconvenience of moving them, this invention provides the following technical solution: a movable ladder frame device, comprising a support assembly including a support frame and a support plate disposed on one side of the bottom of the support frame; a telescopic assembly disposed on the top side wall of the support frame, comprising multiple interconnected telescopic steps and a support member connected to the bottom side wall of any one of the telescopic steps; an adjustment assembly disposed at the bottom end of the support frame and cooperating with the inner wall of the support frame, comprising a rotating platform connected to a rotating component; and a displacement assembly comprising casters fixedly connected to the rotating component.

[0007] As a preferred embodiment of the movable ladder frame device of the present invention, the support frame includes a support platform and support legs symmetrically arranged at both ends of the support platform, and an extension plate extending to the top of the support legs. A sliding limiting groove is provided on the side wall of the support plate.

[0008] As a preferred embodiment of the movable ladder device of the present invention, each telescopic step includes a plug-in end and a mating end, the mating end having a sliding groove, and the plug-in end of the adjacent telescopic step being able to be plugged into the sliding groove.

[0009] As a preferred embodiment of the movable ladder device of the present invention, the supporting member includes a sliding column and a retractable rod. The bottom of the sliding column slides within the sliding limiting groove. A storage groove is provided on the top side wall of the sliding column, and a cylinder is provided in the storage groove. One end of the retractable rod is inserted into the storage groove and contacts the telescopic end of the cylinder. The end of the retractable rod away from the cylinder is connected to the bottom side wall of any telescopic step.

[0010] As a preferred embodiment of the movable ladder device of the present invention, the rotating component includes a first rotating plate, a second rotating plate, and an adjusting door plate. The first rotating plate and the second rotating plate are horizontally arranged in opposite directions. The adjusting door plate is rotatably connected to the second rotating plate and limits the movement of the first rotating plate and the second rotating plate.

[0011] As a preferred embodiment of the movable ladder device of the present invention, wherein: first locking posts are symmetrically arranged on both sides of the first rotating plate, second locking posts, connecting posts and protrusions are symmetrically arranged on both sides of the second rotating plate, the adjusting door plate is mounted on the side wall of the second rotating plate, its two ends are hinged to the outside of the connecting posts, and its side wall is in contact with the second locking posts.

[0012] As a preferred embodiment of the movable ladder device of the present invention, wherein: a swing plate is provided in the middle of one side wall of the adjusting door panel, and a hook is provided at the end of the swing plate; a first telescopic spring is also provided on the side wall of the swing plate, and the other end of the first telescopic spring contacts the surface of the second rotating plate; connecting protrusions are symmetrically provided on both side walls of the adjusting door panel, and a buckle is provided at the bottom of both side walls; a second telescopic spring is also provided between the protrusions and the connecting protrusions.

[0013] As a preferred embodiment of the movable ladder device of the present invention, the first locking post and the second locking post are respectively located on both sides of the adjusting door panel, and are respectively distributed above and below the connecting post; the latching part of the adjusting door panel can cooperate and contact with the first locking post.

[0014] As a preferred embodiment of the present invention for facilitating the movement of the ladder frame device, the adjustment assembly further includes an assisting component fixedly disposed at the bottom of the extension plate. The assisting component includes two sets of hydraulic cylinders and a locking plate, wherein the two sets of hydraulic cylinders are fixedly connected to each other through the locking plate.

[0015] As a preferred embodiment of the movable ladder device of the present invention, the locking plate has a locking groove on the side near the swing plate, and a slot end extends in the locking groove. The swing plate and the buckle part at its end can be engaged in the locking groove and the slot end.

[0016] The advantages of the movable ladder device of the present invention are: the length of the ladder can be adjusted arbitrarily, construction can be carried out in various areas with only one ladder in the construction area, the position of the ladder is easier to move, and it can switch between displacement state and fixed state. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is an overall side sectional view of the present invention.

[0020] Figure 3 This is an overall front view of the present invention.

[0021] Figure 4 This is a detailed schematic diagram of the displacement component in this invention.

[0022] Figure 5 In this invention Figure 4 Enlarged view of the structure at point A.

[0023] Figure 6 This is a cross-sectional view of the assist component in this invention.

[0024] Figure 7 This is a schematic diagram showing the disassembly of the assist component and the adjustment plate in this invention. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1

[0029] Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a movable ladder device, which includes a support assembly 100, which includes a support frame 101 and a support plate 102 disposed on one side of the bottom of the support frame 101, and a telescopic assembly 200 disposed on the top side wall of the support frame 101. The telescopic assembly 200 includes multiple interconnected telescopic steps 201 and a support member 202 connected to the bottom side wall of any one of the telescopic steps 201. The support assembly 100 is made of a lighter material, making it easier to move.

[0030] Furthermore, the support frame 101 includes a support platform 101a and support legs 101b symmetrically arranged at both ends of the support platform 101a. The support legs 101b are in contact with the ground as support, and an extension plate 101c extending from the top of the support legs 101b. The extension plate 101c is parallel to the bottom of the support legs 101b, which can more stably support the ladder frame and prevent workers from being injured due to the instability of the ladder frame during work. A sliding limit groove 102a is provided on the side wall of the support plate 102.

[0031] Furthermore, each telescopic step 201 includes a plug-in end and a mating end, and the mating end is provided with a sliding groove 201b, so that the plug-in end of the adjacent telescopic step 201 can be mated and plugged into the sliding groove 201b.

[0032] Furthermore, the support member 202 includes a sliding column 202a and a retractable rod 202b.

[0033] In summary, the bottom of the sliding column 202a slides within the sliding limiting groove 102a. A storage groove 202a-1 is provided on the top side wall of the sliding column 202a, and a cylinder is installed within the storage groove 202a-1. One end of the retractable rod 202b is inserted into the storage groove 202a-1 and contacts the extension end of the cylinder. The end of the retractable rod 202b away from the cylinder is connected to the bottom side wall of any one level of the telescopic step 201. The sliding column 202a slides within the sliding limiting groove 102a. When the control cylinder begins to extend, the retractable rod 202b will drive the telescopic step 201 to move and release its length. The overall length of the ladder frame is controlled by the control cylinder. A pressure sensor can be installed on the retractable rod 202b to better control the pressure on the ladder frame. When the pressure reaches a certain level, an alarm will sound, allowing staff to make timely adjustments and avoid potential dangers.

[0034] Example 2

[0035] Reference Figures 1-7 This is the second embodiment of the present invention, which differs from the previous embodiment in that it also includes...

[0036] Adjustment component 300 is disposed at the bottom of support frame 101 and cooperates with the inner wall of support frame 101. It includes a rotating platform 301, a rotating component 302 connected to the rotating platform 301, and a displacement component 400, which includes a universal wheel 401 fixedly connected to the rotating component 302. The rotating component 302 includes a first rotating plate 302a, a second rotating plate 302b, and an adjustment door plate 302c.

[0037] Furthermore, the first rotating plate 302a and the second rotating plate 302b are horizontally arranged in an alternating manner, the adjusting door plate 302c is rotatably connected to the second rotating plate 302b, and limits the first rotating plate 302a and the second rotating plate 302b. The first locking posts 302a-1 are symmetrically arranged on both sides of the first rotating plate 302a.

[0038] Furthermore, the second rotating plate 302b has symmetrically arranged second locking posts 302b-1, connecting posts 302b-2 and protrusions 302b-3 on both sides of the second rotating plate 302b. The adjusting door plate 302c is mounted on the side wall of the second rotating plate 302b, and its two ends are hinged to the outside of the connecting posts 302b-2. Its side wall is in contact with the second locking posts 302b-1.

[0039] Specifically, a swing plate 302b-6 is provided in the middle of one side wall of the adjusting door panel 302c, and a hook 302b-61 is provided at the end of the swing plate 302b-6. A first telescopic spring 302c-1 is also provided on the side wall of the swing plate 302b-6. The hook 302b-61 is provided with an inclined surface and a flat surface. The other end of the first telescopic spring 302c-1 contacts the plate surface of the second rotating plate 302b. The side walls at both ends of the adjusting door panel 302c also have... It is said that a connecting protrusion 302c-3 is provided, and a latching part 302c-2 is provided at the bottom of the side wall at both ends. A second telescopic spring 302c-4 is also provided between the protrusion 302b-3 and the connecting protrusion 302c-3. The position of the protrusion 302b-3 is set above the connecting post 302b-2, which can ensure that the second telescopic spring 302c-4 drives the adjusting door panel 302c to rotate towards the connecting protrusion 302c-3 from the end away from the latching part 302c-2.

[0040] Note that the second telescopic spring 302c-4 always maintains a contraction trend to release tension on the adjusting door panel 302c.

[0041] Specifically, the first locking post 302a-1 and the second locking post 302b-1 are located on both sides of the adjusting door panel 302c, and are respectively distributed above and below the connecting post 302b-2; the latching part 302c-2 of the adjusting door panel 302c can cooperate and contact with the first locking post 302a-1. The adjusting assembly 300 also includes an assisting component 303 fixedly installed at the bottom of the extension plate 101c. The assisting component 303 includes two sets of hydraulic cylinders 303a and a locking plate 303b.

[0042] Specifically, the two sets of hydraulic cylinders 303a are fixedly connected by a locking plate 303b. The locking plate 303b has a locking groove 303b-1 on the side near the swing plate 302b-6, and a slot end 303b-2 extends into the locking groove 303b-1.

[0043] The swing plate 302b-6 and its end latching part 302c-2 can be fitted into the locking groove 303b-1 and its latching end 303b-2.

[0044] In summary, when the second rotating plate 302b rotates downward, causing the first rotating plate 302a to rotate downward, during this process, the inclined surface of the latching part 302c-2 of the adjusting door plate 302c on the second rotating plate 302b contacts the first locking post 302a-1, thereby causing the adjusting door plate 302c to rotate away from the connecting boss 302b-3. At this time, the second telescopic spring 302b-3 generates a large elastic potential energy. After the inclined surface of the latching part 302c-2 of the adjusting door plate 302c passes the first locking post 302a-1, the plane of the latching part 302c-2 locks with the first locking post 302a-1, and the second locking... At this time, column 302b-1 restricts the adjusting door panel 302c, so that the universal wheel 401 supports the ground and is lifted. At this time, the entire ladder frame can be moved. When the ladder frame is moved to the desired position, by pulling the adjusting door panel 302c away from the connecting boss 302b-3, the latching part 302c-2 and the first latching column 302a-1 can be locked. During this process, the first rotating plate 302a and the second rotating plate 302b are both subjected to the reaction force of the ground on the wheels, so that the universal wheel 401 can drive the first rotating plate 302a and the second rotating plate 302b to rotate and unlock.

[0045] Example 3

[0046] Reference Figures 1-7 This is the third embodiment of the present invention. This embodiment further provides a device for facilitating the movement of a ladder frame. A locking groove 303b-1 is provided on the side of the locking plate 303b-6 near the swing plate 302b-6. A slot end 303b-2 extends into the locking groove 303b-1. The swing plate 302b-6 and its end buckling part 302c-2 can be engaged in the locking groove 303b-1 and its slot end 303b-2.

[0047] Furthermore, similar to Embodiment 2, when it is necessary to bring the caster wheel 401 into contact with the ground to support the ladder frame, a certain force can be applied to the second rotating plate 302b by the hydraulic cylinder 303a. At this time, the position of the hydraulic cylinder 303a can be set on the side away from the adjusting door plate 302c to avoid contact with the hydraulic cylinder 303a during the rotation of the second rotating plate 302b. Preferably, the hydraulic cylinder 303a is tilted. This solution does not require the hydraulic cylinder 303a to be far away from the adjusting door plate 302c. It is necessary to ensure that the end of the hydraulic cylinder 303a that contacts the second rotating plate 302b can be made more effortless. Since the distance between the caster wheel 401 and the ground is short, the rotation amplitude of the first rotating plate 302a and the second rotating plate 302b is also small. Therefore, the hydraulic cylinder 303a can be positioned at a certain distance from the adjusting door plate 302c to avoid contact between the adjusting door plate 302c and the hydraulic cylinder 303a, which would prevent movement.

[0048] Specifically, a hook 302b-61 is provided at the end of the swing plate 302b-6. The hook 302b-61 is provided with a flat surface and an inclined surface. It is connected between the two sets of hydraulic cylinders 303a by a locking plate 303b. The locking groove 303b-1 opened on the side of the locking plate 303b near the swing plate 302b-6 cooperates with the swing plate 302b-6. The slot end 303b-2 is set as a flat surface.

[0049] In summary, when the hydraulic cylinder 303a applies a certain force to the second rotating plate 302b, the swing plate 302b-6 contacts the bottom of the locking plate 303b and is squeezed. The swing plate 302b-6 presses down on the first telescopic spring 302c-1. At this time, the hydraulic cylinder 303a contacts the second rotating plate 302b and drives the second rotating plate 302b to rotate until the swing plate 302b-6 on the adjusting door plate 302c contacts the first telescopic spring 302c-1. When the position of the swing plate 302b-6 rises to the level of the locking groove 303c-1, the swing plate 302b-6 enters the locking groove 303c-1. At this time, the latching part 302c-2 of the adjusting door plate 302c passes through the first latching post 302a-1, and at the same time, the hook 302b-61 contacts the latching end 303b-2 inside the locking groove 303c-1 to form a lock.

[0050] When unlocking is required, the hydraulic cylinder 303a retracts and disengages from the second rotating plate 302b. At this time, the locking plate 303b begins to rise. When the locking plate 303b rises to a certain height, the swing plate 302b-6 also rises to a certain height. When the rising height exceeds the length of the swing plate 302b-6 itself, the swing plate 302b-6 disengages from the locking groove 303b-1. At this time, the swing plate 302b-6 is pulled by the first telescopic spring 302c-1 to keep the swing plate 302b-6 in a horizontal state. At this time, the swing plate 302b-6 presses the adjusting door plate 302c to swing away from the locking plate 303b, causing the buckle part 302c-2 on the adjusting door plate 302c to disengage from the first locking post 302a-1, thereby creating an assist effect.

[0051] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for easily moving a ladder frame, characterized in that: include, The support assembly (100) includes a support frame (101) and a support plate (102) disposed on one side of the bottom of the support frame (101). The telescopic assembly (200) is disposed on the top side wall of the support frame (101), and includes multiple interconnected telescopic steps (201) and a support member (202) connected to the bottom side wall of any one of the telescopic steps (201). An adjustment assembly (300) is disposed at the bottom of the support frame (101) and cooperates with the inner wall of the support frame (101). It includes a rotating platform (301) and a rotating component (302) is connected to the rotating platform (301). The displacement assembly (400) includes a caster wheel (401) fixedly connected to the rotating member (302); The support frame (101) includes a support platform (101a) and support legs (101b) symmetrically arranged at both ends of the support platform (101a), and an extension plate (101c) extending to the top of the support legs (101b). The support plate (102) has a sliding limiting groove (102a) on its side wall. Each of the telescopic steps (201) includes a plug-in end and a mating end. The mating end is provided with a sliding groove (201b). The plug-in end of the adjacent telescopic steps (201) can be mated and plugged into the sliding groove (201b). The support member (202) includes a sliding column (202a) and a retractable rod (202b); The bottom of the sliding column (202a) slides within the sliding limiting groove (102a). A storage groove (202a-1) is provided on the top side wall of the sliding column (202a). A cylinder is installed in the storage groove (202a-1). One end of the retractable rod (202b) is inserted into the storage groove (202a-1) and contacts the telescopic end of the cylinder. The end of the retractable rod (202b) away from the cylinder is connected to the bottom side wall of any telescopic step (201). The rotating component (302) includes a first rotating plate (302a), a second rotating plate (302b), and an adjusting door plate (302c); The first rotating plate (302a) and the second rotating plate (302b) are horizontally arranged in opposite directions. The adjusting door plate (302c) is rotatably connected to the second rotating plate (302b) and limits the first rotating plate (302a) and the second rotating plate (302b).

2. The movable ladder device as described in claim 1, characterized in that: The first rotating plate (302a) has first locking posts (302a-1) symmetrically arranged on both sides of its two walls; The second rotating plate (302b) has symmetrically arranged second locking posts (302b-1), connecting posts (302b-2), and protrusions (302b-3) on both sides. The adjusting door plate (302c) is mounted on the side wall of the second rotating plate (302b), and its two ends are hinged to the outside of the connecting posts (302b-2). Its side wall is in contact with the second locking posts (302b-1).

3. The movable ladder device as described in claim 2, characterized in that: A swing plate (302b-6) is provided in the middle of one side wall of the adjustable door panel (302c), and a hook (302b-61) is provided at the end of the swing plate (302b-6). A first telescopic spring (302c-1) is also provided on the side wall of the swing plate (302b-6), and the other end of the first telescopic spring (302c-1) is in contact with the surface of the second rotating plate (302b). Connecting protrusions (302c-3) are also symmetrically provided on the side walls of both ends of the adjustable door panel (302c), and a buckle (302c-2) is provided at the bottom of the side walls of both ends. A second telescopic spring (302c-4) is also provided between the protrusion (302b-3) and the connecting protrusion (302c-3).

4. The movable ladder device as described in claim 3, characterized in that: The first locking post (302a-1) and the second locking post (302b-1) are located on both sides of the adjusting door panel (302c), and are respectively distributed above and below the connecting post (302b-2); the latching part (302c-2) of the adjusting door panel (302c) can cooperate and contact with the first locking post (302a-1).

5. The movable ladder device as described in claim 4, characterized in that: The adjustment assembly (300) also includes an assist component (303) fixedly disposed at the bottom of the extension plate (101c), the assist component (303) including two sets of hydraulic cylinders (303a) and a locking plate (303b). The two sets of hydraulic cylinders (303a) are fixedly connected by the locking plate (303b).

6. The movable ladder device as described in claim 5, characterized in that: The locking plate (303b) has a locking groove (303b-1) on the side near the swing plate (302b-6), and a slot end (303b-2) extends into the locking groove (303b-1). The swing plate (302b-6) and its end latch (302c-2) can be fitted into the locking groove (303b-1) and its end latch (303b-2).

Images