Movable ladder convenient to climb

Abstract

The utility model relates to the technical field of movable ladders, and discloses a movable ladder convenient to climb, which comprises a movable ladder assembly and a ladder body, a movable base is arranged on the bottom surface of one side of the movable ladder assembly, support frames are symmetrically fixed on the top surface of the movable base, support rods are fixed in the two support frames, and the movable ladder assembly is arranged on the ladder body. By means of the design of being capable of rotating to the ladder frame, the supporting legs are prevented from being grounded by rotating the ladder frame in the moving process, the lifting type supporting plate is matched, and the supporting legs are prevented from being grounded by rotating the ladder frame in the moving process, so that the supporting legs are prevented from being grounded by rotating the lifting type supporting plate, and the supporting legs are prevented from being grounded by rotating the lifting type supporting plate in the moving process. According to the movable ladder, auxiliary supporting is conducted in a climbing mode, the problems that when an existing movable ladder moves, supporting legs are seriously abraded, and stability is poor in the climbing process are solved, the movable ladder can be better protected, it is guaranteed that the movable ladder is more stable and safer in the climbing process, and the movable ladder is more convenient to climb.

Description

Technical Field

[0001] The utility model application relates to the technical field of movable ladders, in particular to a movable ladder that is easy to climb. Background Art

[0002] As an important tool for workers to work in high places for a short period of time, the movable ladder carries the safety of workers during work. The bottom of the ladder is generally provided with a movable pulley to facilitate workers to move the movable ladder to the position according to the work point. It is very common in construction, municipal construction and other occasions.

[0003] In order to facilitate movement while ensuring sufficient stability, existing movable ladders are generally provided with two rollers on one side and supported by legs on the other side. As a result, one side of the legs will be severely worn when moving, and the side with rollers has limited stability when climbing, which greatly reduces the practicality of the movable ladder. Summary of the invention

[0004] In order to solve the problems of serious wear of the supporting feet of the existing movable ladder when moving and poor stability when climbing, the utility model provides a movable ladder that is easy to climb to solve the above problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A movable ladder for easy climbing, comprising a movable ladder frame and a ladder body, wherein a movable base is arranged on the bottom surface of one side of the movable ladder frame, and a support frame is symmetrically fixed on the top surface of the movable base, support rods are fixed inside the two support frames, and a rotating sleeve is rotatably sleeved on the support rods, and two limiting holes are arranged inside each rotating sleeve, and a threaded hole matching the limiting hole is arranged on the outer side of the support frame, and a fixed plug rod is threadedly sleeved inside the threaded hole, and the fixed plug rod penetrates and is inserted inside the limiting hole

[0007] Furthermore, safety guardrails are fixedly mounted on the movable ladder frames on both sides of the ladder body, the height of the safety guardrails is 80-120 cm, and the angle between each group of two limiting holes and the center of the support rod is 60°.

[0008] Furthermore, an auxiliary support plate is slidably provided on the bottom surface of the movable base, and an adjusting screw is rotatably connected to the middle part of the top surface of the auxiliary support plate through a bearing, the adjusting screw is threadedly sleeved inside the movable base, and the adjusting screw passes through one end above the movable base and is fixed with a crank, a limiting slide rod is fixed on the top surface of the auxiliary support plate, and the limiting slide rod is slidably inserted inside the movable base.

[0009] Furthermore, a rotating hole cooperating with the support rod is provided inside the rotating sleeve, the supporting frame is configured to be "U"-shaped, and a thread cooperating with the threaded hole is provided on the fixed plug rod.

[0010] Furthermore, the width of the auxiliary support plate is smaller than the distance between the two pulleys at the bottom of the movable base, and the bottom surface of the pulley is flush with the bottom surface of the movable ladder frame support foot, and the thickness of the auxiliary support plate is smaller than the height of the pulley.

[0011] Furthermore, the heights of the two limit slide bars are equal to the height of the adjusting screw, a thread groove cooperating with the adjusting screw is opened in the middle of the movable base, and sliding blocks cooperating with the limit slide bars are opened inside the movable base on both sides of the thread groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model adopts the design of a rotatable ladder frame. When moving, the ladder frame is rotated to avoid the support legs from touching the ground. The lifting support plate is used to provide auxiliary support when climbing, thereby solving the problems of serious wear of the support legs of the existing movable ladder when moving and poor stability when climbing. The movable ladder can be better protected and the movable ladder can be more stable and safer when climbing, making it more convenient to climb the movable ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 is a right side schematic diagram of a movable ladder structure according to an embodiment of the present application;

[0016] Figure 2 yes Figure 1 A left side schematic diagram of the movable ladder structure in the illustrated embodiment;

[0017] Figure 3 yes Figure 1 A schematic front view of a split rotating structure in the illustrated embodiment.

[0018] The meanings of the reference numerals in the figure are: 1. movable ladder frame; 2. ladder body; 3. safety guardrail; 4. movable base; 5. support frame; 6. support rod; 7. rotating sleeve; 8. limiting hole; 9. threaded hole; 10. fixed plug rod; 11. auxiliary support plate; 12. adjusting screw; 13. crank; 14. limiting slide rod. DETAILED DESCRIPTION

[0019] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] Reference Figure 1 , Figure 2 and Figure 3 , a movable ladder that is easy to climb, includes a movable ladder frame 1 and a ladder body 2, the movable ladder frames 1 on both sides of the ladder body 2 are fixed with safety guardrails 3, the height of the safety guardrails 3 is 80-120 cm, and the angle between each group of two limiting holes 8 and the center of the support rod 6 is 60°, a movable base 4 is arranged on the bottom surface of one side of the movable ladder frame 1, and a support frame 5 is symmetrically fixed on the top surface of the movable base 4, support rods 6 are fixed inside the two support frames 5, and a rotating sleeve 7 is rotatably sleeved on the support rods 6, and a rotating hole matching the support rod 6 is opened inside the rotating sleeve 7, the support frame 5 is set to a "U" shape, a fixed plug rod 10 is provided with a thread matching the threaded hole 9, and two limiting holes 8 are opened inside each rotating sleeve 7, and a threaded hole 9 matching the limiting hole 8 is opened outside the support frame 5, and a fixed plug rod 10 is threadedly sleeved inside the threaded hole 9, and the fixed plug rod 10 is inserted through the limiting hole 8.

[0021] Specifically, when the movable ladder frame 1 needs to be moved, the fixed plug rod 10 is rotated to release the fixation between the fixed plug rod 10 and the threaded hole 9, and then the fixed plug rod 10 is continued to be pulled to pull the fixed plug rod 10 out from the inside of the limiting hole 8. After pulling it out, under the support of the movable base 4, the movable ladder frame 1 is rotated to drive the rotating sleeve 7 to rotate on the support rod 6. After rotating until the threaded hole 9 is aligned with the other limiting hole 8, the fixed plug rod 10 is reinserted into the inside of the limiting hole 8 and screwed until it is fixed with the threaded hole 9. The movable ladder frame 1 can be tilted and stabilized, and the movable ladder frame 1 can be pushed to move with the support of the movable base 4. After moving, the fixed plug rod 10 is screwed out again, and the movable ladder frame 1 is rotated back to the horizontal state, and finally fixed by the fixed plug rod 10.

[0022] As an optimization solution, Figure 1 and Figure 2As shown, an auxiliary support plate 11 is slidably provided on the bottom surface of the movable base 4, and the width of the auxiliary support plate 11 is smaller than the distance between the two pulleys at the bottom of the movable base 4, and the bottom surface of the pulley is flush with the bottom surface of the support foot of the movable ladder frame 1, the thickness of the auxiliary support plate 11 is smaller than the height of the pulley, and an adjusting screw 12 is rotatably connected to the middle part of the top surface of the auxiliary support plate 11 through a bearing, the adjusting screw 12 is threadedly sleeved inside the movable base 4, and the adjusting screw 12 passes through the end above the movable base 4 and is fixed with a crank 13, a limiting slide bar 14 is fixed on the top surface of the auxiliary support plate 11, and the limiting slide bar 14 is slidably inserted inside the movable base 4, and the height of the two limiting slide bars 14 is equal to the height of the adjusting screw 12, a threaded groove cooperating with the adjusting screw 12 is opened in the middle part of the movable base 4, and sliding blocks cooperating with the limiting slide bar 14 are opened inside the movable base 4 on both sides of the threaded groove.

[0023] Specifically, when the movable ladder is moved to the desired position, the crank handle 13 is turned to drive the adjusting screw 12 to rotate. When the adjusting screw 12 rotates, under the action of the thread and the limiting cooperation of the limiting slide bars 14 on both sides, the auxiliary support plate 11 is driven to move downward until the auxiliary support plate 11 moves down to fit the ground, thereby providing auxiliary support for the movable ladder frame 1. When the movable ladder needs to be moved, the crank handle 13 is turned in the opposite direction to drive the auxiliary support plate 11 to move up and be retracted.

[0024] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0025] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A movable ladder for easy climbing, comprising a movable ladder frame (1) and a ladder body (2), characterized in that: A movable base (4) is provided on the bottom surface of one side of the movable ladder frame (1), and a support frame (5) is symmetrically fixed to the top surface of the movable base (4), support rods (6) are fixed inside the two support frames (5), and a rotating sleeve (7) is rotatably sleeved on the support rods (6), and two limiting holes (8) are provided inside each rotating sleeve (7), and a threaded hole (9) matching the limiting hole (8) is provided on the outer side of the support frame (5), and a fixed plug rod (10) is threadedly sleeved inside the threaded hole (9), and the fixed plug rod (10) passes through and is inserted inside the limiting hole (8).

2. The movable ladder for easy climbing according to claim 1, characterized in that: Safety guardrails (3) are fixedly mounted on the movable ladder frames (1) on both sides of the ladder body (2). The height of the safety guardrails (3) is 80-120 cm, and the angle between each group of two limiting holes (8) and the center of the support rod (6) is 60°.

3. The movable ladder for easy climbing according to claim 1, characterized in that: The bottom surface of the movable base (4) is slidably provided with an auxiliary support plate (11), and the middle part of the top surface of the auxiliary support plate (11) is rotatably connected with an adjusting screw (12) through a bearing, the adjusting screw (12) is threadedly sleeved inside the movable base (4), and a crank (13) is fixed to one end of the adjusting screw (12) that passes through the top of the movable base (4), and a limiting slide rod (14) is fixed on the top surface of the auxiliary support plate (11), and the limiting slide rod (14) is slidably inserted inside the movable base (4).

4. The movable ladder for easy climbing according to claim 1, characterized in that: The rotating sleeve (7) is provided with a rotating hole inside thereof to cooperate with the support rod (6); the supporting frame (5) is arranged in a "U" shape; and the fixed plug rod (10) is provided with a thread to cooperate with the threaded hole (9).

5. The movable ladder for easy climbing according to claim 3, characterized in that: The width of the auxiliary support plate (11) is smaller than the distance between the two pulleys at the bottom of the movable base (4), and the bottom surface of the pulley is flush with the bottom surface of the support foot of the movable ladder frame (1), and the thickness of the auxiliary support plate (11) is smaller than the height of the pulley.

6. The movable ladder for easy climbing according to claim 3, characterized in that: The heights of the two limit slide bars (14) are both equal to the height of the adjusting screw (12); a thread groove cooperating with the adjusting screw (12) is provided in the middle of the movable base (4); and sliding blocks cooperating with the limit slide bars (14) are provided inside the movable base (4) on both sides of the thread groove.

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