Anti-shaking two-step ladder

Abstract

The utility model relates to the technical field of ladders, in particular to an anti-shaking two-step ladder which comprises two first supporting frames and two second supporting frames, first foot bars are fixedly installed on the opposite sides of the two first supporting frames, an installation block is fixedly installed on the left sides of the two first supporting frames, and a second foot bar is fixedly installed on the right sides of the two second supporting frames. Mounting grooves are formed in the left sides of the mounting blocks correspondingly, sliding blocks and lead screws are arranged in the mounting grooves correspondingly, supporting rods are movably arranged on the left sides of the sliding blocks, the bottom ends of the lead screws are fixedly sleeved with driven gears, and second foot bars are fixedly mounted on the opposite sides of the two second supporting frames; supporting mechanisms are arranged on the outer side of the second supporting frame and the outer side of the first supporting frame correspondingly, by arranging the supporting mechanisms in the two-step ladder capable of preventing shaking, the purpose of preventing shaking of the two-step ladder is achieved, potential safety hazards brought to users are effectively eliminated, and follow-up use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of ladders, in particular to an anti-shaking two-step ladder. Background Art

[0002] A two-step ladder currently in use, after searching, is found that the utility model of patent application number CN200620054015.7 discloses a chair-type two-step ladder, and particularly relates to a foldable, lightweight, and insulated chair-type two-step ladder. It mainly includes front and rear support frames and handrail frames, and the support frame and the handrail frame are connected by a movable connection. Two pedals, one high and one low, are fixed on the front support frame. The special feature is that the handrail frame can be telescopic along the front support frame, and a telescopic control mechanism of the handrail frame and an attached pedal extending toward the rear support frame are provided on the bottom surface of the high pedal. In addition, an attached pedal support rod is provided on the rear support frame, and the support rod and the support rod positioner provided on the attached pedal realize the retraction and release of the attached pedal. The main pipe parts are made of glass fiber materials with high strength, light weight, corrosion resistance, and oxidation resistance; especially when using it to repair household electrical circuits, it has a more insulating function. This product can be folded and is easy to carry, and the upper part can be telescopic for easy storage; when it is unfolded, the unique width of the upper pedal and the attached pedal allows users to sit and rest when they are tired.

[0003] Although the above patent solves the problems in the above-mentioned background technology, it still has the following shortcomings: the two-step ladder only relies on the rear support frame and the front support frame to realize the supporting function, and the supporting effect shown by this supporting method is not good. Therefore, when in use, it is very easy to cause active connection and position change between the support frames, which in turn causes the two-step ladder to shake, posing a hidden danger to the safety of users and is not conducive to the subsequent use of the two-step ladder.

[0004] In summary, the utility model solves the problems in the above-mentioned background technology by designing an anti-shake two-step ladder. Utility Model Content

[0005] The utility model aims to provide a two-step ladder with an anti-shaking function, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The ladder system of claim 1, wherein the first and second support frames are each provided with two mounting rings on the outer top fixing sleeves of the two first support frames, and the front sides of the mounting rings are respectively fixed with fixing blocks, and the bottoms of the fixing blocks are provided with rotation grooves, and the first pedal rods are fixedly installed on the opposite sides of the two first support frames, and the mounting blocks are fixedly installed on the left sides of the two first support frames, and the mounting grooves are respectively provided on the left sides of the mounting blocks, and sliding blocks and screw rods are respectively provided inside the mounting grooves, and a supporting rod is movably provided on the left side of the sliding block, and a slave gear is fixedly provided on the bottom end of the screw rod, and the slave gear is meshed and connected with a main gear, and a crank is fixedly installed inside the main gear, and the second pedal rods are fixedly installed on the opposite sides of the two second support frames, and the outer sides of the second support frame and the first support frame are both provided with supporting mechanisms;

[0008] The supporting mechanism includes a fixed column, which is respectively located at the bottom ends of the opposite sides of the first supporting frame and the second supporting frame, a movable groove is opened inside the fixed column, a movable block is arranged inside the movable groove, support legs are rotatably arranged at the front and rear ends of the movable block, a square groove is opened on the outer surface of the supporting leg, a plum blossom screw is rotatably arranged on the top surface of the fixed column through a bearing, a No. 1 fixing piece is fixedly installed on the front and rear sides of the fixed column, a No. 2 fixing piece is rotatably arranged on the outer side of the No. 1 fixing piece, a fixed sleeve is fixedly installed on the side of the No. 2 fixing piece away from the No. 1 fixing piece, and a piston column is movably penetrated through the end of the fixed sleeve away from the No. 2 fixing piece.

[0009] As a preferred solution of the utility model, the vertical height of the second support frame is smaller than that of the first support frame, and its outer top is located inside the rotating groove and is rotatably connected thereto through a connecting shaft, and a gap is left between the first support frame and the second support frame.

[0010] As a preferred solution of the utility model, the shape and size of the No. 1 pedal bar and the No. 2 pedal bar are consistent, and the No. 2 pedal bar is arranged in parallel with the No. 1 pedal bar located at the upper end.

[0011] As a preferred solution of the utility model, the outer side of the slider is fitted with the inner wall of the mounting groove, and its threaded sleeve is arranged on the outer surface of the screw rod, the right front end of the support rod is rotatably connected to the left side surface of the second support frame through a rotating member, and the outer side surface of the crank is rotatably connected to the left side surface of the first support frame through a fastener.

[0012] As a preferred solution of the utility model, the front and rear inner walls of the movable groove are flush with the front and rear surfaces of the fixed column, and the left and right surfaces of the movable block slide in contact with the interior of the movable groove.

[0013] As a preferred solution of the utility model, the bottom end of the plum screw successively penetrates the top surface of the fixed column and the top surface of the movable block and extends to the inner bottom end of the movable groove, and its outer surface is threaded with the inner wall of the movable block, and the end of the piston column away from the fixed sleeve is slidably connected to the inner wall of the square groove through a No. 3 fixing piece.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In the utility model, by providing a support mechanism in the anti-shake two-step ladder, the structural design in the support mechanism is utilized to achieve supporting contact between the support legs and the ground, thereby achieving the purpose of anti-shake of the two-step ladder, effectively eliminating the safety hazards brought to users, and facilitating subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the support mechanism of the utility model;

[0018] Figure 3 For the utility model Figure 1 Schematic diagram of the enlarged structure at point A.

[0019] In the figure: 1. first support frame; 101. mounting ring; 1011. fixing block; 102. pedal rod No. 1; 103. mounting block; 1031. mounting groove; 1032. slider; 1033. screw rod; 1034. support rod; 1035. slave gear; 1036. main gear; 1037. crank; 2. second support frame; 201. pedal rod No. 2; 3. supporting mechanism; 301. fixing column; 302. moving groove; 303. moving block; 304. supporting leg; 3041. square groove; 305. plum blossom screw; 306. fixing piece No. 1; 307. fixing piece No. 2; 308. fixing sleeve; 309. piston column. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0024] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0025] A two-step ladder with anti-shake comprises a first support frame 1 and a second support frame 2, wherein the first support frame 1 and the second support frame 2 both have two, the outer top fixed sleeves of the two first support frames 1 are provided with mounting rings 101, the front sides of the mounting rings 101 are respectively fixedly installed with fixing blocks 1011, the bottoms of the fixing blocks 1011 are provided with rotation grooves, the first pedal rods 102 are fixedly installed on the opposite sides of the two first support frames 1, the left sides of the two first support frames 1 are fixedly installed with mounting blocks 103, the left sides of the mounting blocks 103 are provided with mounting grooves 1031, the interiors of the mounting grooves 1031 are respectively provided with sliders 1032 and screw rods 1033, the left sides of the sliders 1032 are movably provided with support rods 1034, the bottom end fixed sleeves of the screw rods 1033 are provided with slave gears 1035, the slave gears 1035 are meshedly connected with the main gears 1036, the insides of the main gears 1036 are fixedly installed with cranks 1037, and the opposite sides of the two second support frames 2 are fixedly installed with the second pedal rods 201;

[0026] Among them, the vertical height of the second support frame 2 is smaller than the height of the first support frame 1, and its outer top is located inside the rotating groove and is rotatably connected thereto through a connecting shaft. A gap is left between the first support frame 1 and the second support frame 2. The shapes and sizes of the No. 1 pedal 102 and the No. 2 pedal 201 are consistent. The No. 2 pedal 201 is arranged parallel to the No. 1 pedal 102 located at the upper end, which is convenient for users to step on, thereby achieving the practical effect of a two-step ladder.

[0027] Specifically, the outer side of the slider 1032 fits with the inner wall of the mounting groove 1031, and its thread sleeve is arranged on the outer side surface of the screw rod 1033, the right front end of the support rod 1034 is rotatably connected to the left side surface of the second support frame 2 through a rotating member, and the outer side surface of the crank 1037 is rotatably connected to the left side surface of the first support frame 1 through a fastener;

[0028] In this embodiment, the crank 1037 is mainly used to drive the main gear 1036 to engage with the slave gear 1035, and the slave gear 1035 drives the screw rod 1033 and the slider 1032 to move vertically, thereby changing the position of the support rod 1034 and driving the second support frame 2 to separate from the first support frame 1, making it easier for users to unfold the two-step ladder.

[0029] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 3 , the outer sides of the second support frame 2 and the first support frame 1 are both provided with a support mechanism 3, the support mechanism 3 includes a fixed column 301, the fixed column 301 is respectively located at the bottom ends of the opposite sides of the first support frame 1 and the second support frame 2, a moving groove 302 is provided inside the fixed column 301, a moving block 303 is provided inside the moving groove 302, and support legs 304 are rotatably provided at the front and rear ends of the moving block 303, and a square groove 3041 is provided on the outer surface of the support leg 304, and a plum blossom screw 305 is rotatably provided on the top surface of the fixed column 301 through a bearing, and a No. 1 fixing piece 306 is fixedly installed on the front and rear sides of the fixed column 301, and a No. 2 fixing piece 307 is rotatably provided on the outer side of the No. 1 fixing piece 306, a fixed sleeve 308 is fixedly installed on the side of the No. 2 fixing piece 307 away from the No. 1 fixing piece 306, and a piston column 309 is movably penetrated at one end of the fixed sleeve 308 away from the No. 2 fixing piece 307;

[0030] Among them, the front and rear inner walls of the movable groove 302 are flush with the front and rear surfaces of the fixed column 301, the left and right side surfaces of the movable block 303 fit and slide with the inside of the movable groove 302, and the bottom end of the plum screw 305 passes through the top surface of the fixed column 301 and the top surface of the movable block 303 in sequence and extends to the inner bottom end of the movable groove 302, and its outer surface is threaded with the inner wall of the movable block 303, and the end of the piston column 309 away from the fixed sleeve 308 is slidably connected to the inner wall of the square groove 3041 through the No. 3 fixing piece, and the setting of the plum screw 305 is mainly used to drive the movable block 303 to move downward and make the bottom surface of the support leg 304 firmly contact with the ground, thereby solving the problem of lack of effective and stable support between the support frames in the two-step ladder and meeting the needs of users.

[0031] The working process of the utility model is as follows: when using an anti-shake two-step ladder, first, the two-step ladder is moved to the desired position, and then the first support frame 1 and the second support frame 2 are unfolded, and the crank 1037 is turned, and the crank 1037 drives the main gear 1036 to rotate, and the main gear 1036 drives the slave gear 1035 to rotate, and the slave gear 1035 drives the screw rod 1033 to rotate. Under the thread cooperation between the screw rod 1033 and the slider 1032, the slider 1032 moves vertically and drives the support rod 1034 to move, and then the support rod 1034 drives the second support frame 2 to separate from the first support frame 1, Thus, the unfolding operation of the two-step ladder is completed. Again, the first support frame 1 and the second support frame 2 are supported, and the plum blossom screw 305 is rotated. Under the thread cooperation of the plum blossom screw 305 and the moving block 303, the moving block 303 gradually moves downward and drives the supporting leg 304, and then the supporting leg 304 drives the fixed sleeve 308 and the piston column 309 to move until a stable support is formed between the bottom surface of the supporting leg 304 and the ground. Finally, the climbing operation can be performed through the No. 1 pedal 102 and the No. 2 pedal 201. In this way, the stability of the two-step ladder is improved, its shaking is prevented, and the needs of users are met.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-step ladder with an anti-sway feature, comprising a first support frame (1) and a second support frame (2), characterized in that: There are two of each of the first support frame (1) and the second support frame (2), the outer top of each of the two first support frames (1) is fixedly sleeved with a mounting ring (101), the front side of each of the mounting rings (101) is fixedly mounted with a fixing block (1011), the bottom of each of the fixing blocks (1011) is provided with a rotation groove, the opposite sides of the two first support frames (1) are fixedly mounted with a No. 1 pedal bar (102), the left side of each of the two first support frames (1) is fixedly mounted with a mounting block (103), the left side of each of the mounting blocks (103) is provided with a mounting groove (1031), and the mounting groove (1031) is provided with a rotation groove (1032). 1) are respectively provided with a slider (1032) and a screw rod (1033), a support rod (1034) is movably provided on the left side of the slider (1032), a slave gear (1035) is fixedly sleeved on the bottom end of the screw rod (1033), the slave gear (1035) is meshingly connected with a main gear (1036), a crank (1037) is fixedly installed inside the main gear (1036), a second pedal rod (201) is fixedly installed on the opposite sides of the two second support frames (2), and a support mechanism (3) is provided on the outer sides of the second support frame (2) and the first support frame (1); The support mechanism (3) comprises a fixed column (301), wherein the fixed column (301) is respectively located at the bottom ends of the opposite sides of the first support frame (1) and the second support frame (2), wherein a moving groove (302) is provided inside the fixed column (301), wherein a moving block (303) is provided inside the moving groove (302), wherein support legs (304) are rotatably provided at the front and rear ends of the moving block (303), wherein the outer surface of the support leg (304) is provided with a square groove (3041), wherein the fixed column (3 01) is rotatably provided with a plum screw (305) on the top surface thereof through a bearing, a No. 1 fixing piece (306) is respectively fixedly provided on the front and rear sides of the fixing column (301), a No. 2 fixing piece (307) is rotatably provided on the outer side of the No. 1 fixing piece (306), a fixing sleeve (308) is fixedly provided on the side of the No. 2 fixing piece (307) away from the No. 1 fixing piece (306), and a piston column (309) is movably provided through the end of the fixing sleeve (308) away from the No. 2 fixing piece (307).

2. The anti-shake two-step ladder according to claim 1, characterized in that: The vertical height of the second support frame (2) is smaller than that of the first support frame (1), and its outer top is located inside the rotating groove and is rotatably connected thereto via a connecting shaft, with a gap being left between the first support frame (1) and the second support frame (2).

3. The anti-shake two-step ladder according to claim 1, characterized in that: The first pedal bar (102) and the second pedal bar (201) have the same shape and size, and the second pedal bar (201) is arranged in parallel with the first pedal bar (102) located at the upper end.

4. The anti-shake two-step ladder according to claim 1, characterized in that: The outer side of the slider (1032) fits with the inner wall of the mounting groove (1031), and its threaded sleeve is arranged on the outer surface of the screw rod (1033). The right front end of the support rod (1034) is rotatably connected to the left side surface of the second support frame (2) through a rotating member, and the outer side surface of the crank (1037) is rotatably connected to the left side surface of the first support frame (1) through a fastener.

5. The anti-shake two-step ladder according to claim 1, characterized in that: The front and rear inner walls of the movable groove (302) are flush with the front and rear surfaces of the fixed column (301), and the left and right surfaces of the movable block (303) fit and slide inside the movable groove (302).

6. The anti-shake two-step ladder according to claim 1, characterized in that: The bottom end of the plum screw (305) passes through the top surface of the fixed column (301), the top surface of the moving block (303) in sequence and extends to the inner bottom end of the moving groove (302), and its outer surface is threaded with the inner wall of the moving block (303). The end of the piston column (309) away from the fixed sleeve (308) is slidably connected to the inner wall of the square groove (3041) through a No. 3 fixing piece.

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