Ladder anti-slip device

Abstract

This utility model relates to the field of ladder technology and discloses a ladder anti-slip device, including a ladder composed of multiple crossbeams. Each crossbeam has fixed diagonal braces fixedly connected to both sides of its outer wall, and fixed straight braces fixedly connected to both sides of the bottom crossbeam's outer wall. An internal gear is fixedly connected to one side of the outer wall of each fixed straight brace, and a sliding rod is continuously connected to the front end of the outer wall of each fixed straight brace. Anti-slip foot supports are slidably connected to the outer wall of each sliding rod. In this utility model, the ladder anti-slip device, through the right-angled triangular support structure formed by the fixed diagonal braces and fixed straight braces, significantly improves the overall stability of the ladder. The precise meshing of the external gear sleeve and the internal gear ensures reliable locking of the anti-slip foot supports. The sliding rod, through the engagement of its internal thread and nut, further limits the anti-slip foot supports, preventing displacement during use and enhancing positioning accuracy.

Description

Technical Field

[0001] This utility model relates to the field of ladder technology, and in particular to a ladder anti-slip device. Background Technology

[0002] As is well known, ladders are widely used in agriculture, industry, and daily life in my country. However, ladders have poor stability and a small contact area with the ground, making them prone to slipping and sliding accidents. Every year, numerous falls from heights caused by ladders result in injuries, fatalities, and property damage. Currently, there are no effective and reliable safety products on the market to prevent such accidents. Against this backdrop, this invention uses an auxiliary safety device to add reverse support to prevent ladder slippage accidents.

[0003] Therefore, those skilled in the art have provided ladder anti-slip devices to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a ladder anti-slip device. When in use, the ladder anti-slip device significantly improves the overall stability of the ladder through a right-angled triangular support structure composed of fixed diagonal braces and fixed straight braces. With the precise meshing of the outer toothed sleeve and the inner gear, the anti-slip foot brace is reliably locked. The sliding rod, through the cooperation of the internal thread and the nut, can further limit the anti-slip foot brace, preventing displacement during use and enhancing positioning accuracy.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A ladder anti-slip device includes a ladder composed of multiple crossbeams. Each crossbeam has fixed diagonal braces fixedly connected to both sides of its outer wall, and fixed straight braces fixedly connected to both sides of the bottom crossbeam's outer wall. An internal gear is fixedly connected to one side of the outer wall of each fixed straight brace. A sliding rod is continuously connected to the front end of the outer wall of each fixed straight brace. Anti-slip foot supports are slidably connected to the outer wall of each sliding rod, and an external toothed sleeve is fixedly connected to the side of each anti-slip foot support near the internal gear.

[0007] Compared with existing ladder anti-slip devices, this ladder anti-slip device significantly improves the overall stability of the ladder through the right-angled triangular support structure composed of fixed diagonal braces and fixed straight braces. With the precise meshing of the outer toothed sleeve and the inner gear, the anti-slip foot brace is reliably locked. The sliding rod, through the cooperation of the internal thread and the nut, can further limit the anti-slip foot brace, preventing displacement during use and enhancing positioning accuracy.

[0008] Furthermore, the fixed diagonal brace, fixed straight brace, and anti-slip foot support are all H-shaped as a whole; The above technical solution, which adopts an integral H-shaped structure design for the fixed diagonal brace, fixed straight brace and anti-slip foot support, can make the force distribution more even, disperse the longitudinal pressure and lateral tension generated during ladder use, and avoid local stress concentration that could lead to component deformation or damage.

[0009] Furthermore, the fixed diagonal brace and the fixed straight brace form a right-angled triangular support structure; The above technical solution, through the right-angled triangular support structure composed of fixed diagonal braces and fixed straight braces, fully utilizes the core mechanical property of the triangle's indeformability, thus constructing a stable bottom support foundation for the ladder.

[0010] Furthermore, the fixed straight brace is perpendicular to the vertical bars on both sides of the ladder body; By using the above technical solution, and through the design of the fixed straight supports and the vertical bars on both sides of the ladder body at a perpendicular angle, the vertical and efficient transmission of force can be achieved. This allows the weight of the ladder itself and the user's weight to be directly and evenly transmitted to the ground, avoiding load dispersion due to angle deviation.

[0011] Furthermore, the outer gear sleeve meshes with the inner gear; The above technical solution, through the intermeshing design of the outer gear sleeve and the inner gear, achieves both precise locking and flexible adjustment functions for the anti-slip foot brace. The intermeshing structure firmly fixes the position of the anti-slip foot brace, preventing it from shifting due to vibration, stress, or other factors during ladder use.

[0012] Furthermore, an internal thread is provided on one side of the outer wall of the slide rod, and a nut is threaded onto the outer wall of the internal thread, the nut abutting against one side of the outer wall of the anti-slip foot support; The above technical solution constructs a double limiting protection mechanism by using the design of the inner thread of the sliding rod to engage with the nut and the anti-slip foot support. Based on the gear meshing and locking, the position of the anti-slip foot support on the sliding rod is further reinforced, effectively preventing the gear meshing from developing gaps after long-term use, or the anti-slip foot support from shifting due to external vibration.

[0013] This utility model has the following beneficial effects: 1. The ladder anti-slip device proposed in this utility model, compared with the existing ladder anti-slip devices, has a right-angled triangular support structure composed of fixed diagonal braces and fixed straight braces, which greatly improves the overall stability of the ladder. With the precise meshing of the outer toothed sleeve and the inner gear, the anti-slip foot brace is reliably locked. The sliding rod can further limit the anti-slip foot brace through the cooperation of the internal thread and the nut, so as to prevent it from shifting during use and enhance the positioning accuracy. Attached Figure Description

[0014] Figure 1This is an isometric view of the ladder anti-slip device proposed in this utility model; Figure 2 This is an isometric schematic diagram of the ladder anti-slip device proposed in this utility model; Figure 3 This is an explosion diagram of the ladder anti-slip device proposed in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0015] Explanation of reference numerals in the attached figures: 1. Ladder; 2. Crossbeam; 3. Fixed diagonal brace; 4. Fixed straight brace; 5. Slide rod; 6. Anti-slip foot support; 7. Internal gear; 8. External gear sleeve; 9. Internal thread; 10. Nut. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Reference Figure 1-4 An embodiment of this utility model provides a ladder anti-slip device, including a ladder 1, which is composed of multiple crossbeams 2. Fixed diagonal braces 3 are fixedly connected to both sides of the outer wall of a single crossbeam 2, and fixed straight braces 4 are fixedly connected to both sides of the outer wall of the bottom crossbeam 2. An internal gear 7 is fixedly connected to one side of the outer wall of the fixed straight brace 4. A sliding rod 5 is connected through the front end of the outer wall of the fixed straight brace 4. Anti-slip foot supports 6 are slidably connected to the outer wall of the sliding rod 5. An external toothed sleeve 8 is fixedly connected to the side of the anti-slip foot support 6 near the internal gear 7.

[0018] Compared with existing ladder anti-slip devices, this ladder anti-slip device significantly improves the overall stability of the ladder 1 by using a right-angled triangular support structure composed of fixed diagonal brace 3 and fixed straight brace 4. With the precise meshing of the outer toothed sleeve 8 and the inner gear 7, the anti-slip foot support 6 is reliably locked. The sliding rod 5, through the cooperation of the inner thread 9 and the nut 10, can further limit the anti-slip foot support 6, preventing it from shifting during use and enhancing the positioning accuracy.

[0019] The fixed diagonal brace 3, the fixed straight brace 4, and the anti-slip foot brace 6 are all H-shaped as a whole; The fixed diagonal brace 3, fixed straight brace 4, and anti-slip foot brace 6 all adopt an integral H-shaped structure design, which can make the force more even and disperse the longitudinal pressure and lateral tension generated when the ladder 1 is used, avoiding local stress concentration that could lead to component deformation or damage.

[0020] The fixed diagonal brace 3 and the fixed straight brace 4 form a right-angled triangular support structure; The right-angled triangular support structure composed of fixed diagonal brace 3 and fixed straight brace 4 fully utilizes the core mechanical property of the triangle's indeformability, thus constructing a stable bottom support foundation for the ladder 1.

[0021] The fixed straight brace 4 is perpendicular to the vertical bars on both sides of the ladder 1 body; By fixing the vertical support 4 at a vertical angle to the vertical bars on both sides of the ladder 1 body, the vertical force can be efficiently transmitted, and the load such as the weight of the ladder 1 itself and the user's weight can be directly and evenly transmitted to the ground, avoiding load dispersion due to angle deviation.

[0022] The outer gear sleeve 8 meshes with the inner gear 7; The design of the intermeshing of the outer gear sleeve 8 and the inner gear 7 achieves both precise locking and flexible adjustment of the anti-slip foot support 6. The intermeshing structure can firmly fix the position of the anti-slip foot support 6, preventing it from shifting due to vibration, force, or other factors during the use of the ladder 1.

[0023] An internal thread 9 is provided on one side of the outer wall of the slide rod 5, and a nut 10 is threadedly connected to the outer wall of the internal thread 9. The nut 10 abuts against one side of the outer wall of the anti-slip foot support 6. The design of the slide rod 5 with its outer wall threaded with the nut 10 and anti-slip foot support 6 creates a double limiting protection mechanism. Based on the gear meshing and locking, the position of the anti-slip foot support 6 on the slide rod 5 is further reinforced, effectively preventing the gear meshing from developing gaps after long-term use, or the anti-slip foot support 6 from shifting due to external vibration.

[0024] Working principle: When in use, first place the ladder 1 against the target work position. The ladder 1 is supported by multiple crossbeams 2 to ensure the climbing foundation. The fixed diagonal braces 3 on both sides of a single crossbeam 2 and the fixed straight braces 4 on both sides of the bottom crossbeam 2 cooperate to form a stable right-angled triangular support structure, providing stable bottom support for the ladder 1. Then, with the help of the sliding rod 5 connected through the outer wall of the fixed straight brace 4, the anti-slip foot brace 6, which is sleeved on the sliding rod 5, slides to the left so that the outer tooth sleeve 8 on the side of the anti-slip foot brace 6 near the internal gear 7 precisely meshes with the internal gear 7 on the fixed straight brace 4, realizing the initial locking and positioning of the anti-slip foot brace 6, preventing the ladder 1 from slipping sideways. Finally, tighten the nut 10 on the inner thread 9 on the outer wall of the sliding rod 5 so that the nut 10 is tightly abutted against the outer wall of the anti-slip foot brace 6, forming a double limit protection, further fixing the position of the anti-slip foot brace 6, and preventing it from shifting due to force and vibration during the use of the ladder 1.

[0025] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0026] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ladder anti-slip device, comprising a ladder (1), characterized in that: The ladder (1) is composed of multiple crossbeams (2). Fixed diagonal braces (3) are fixedly connected to both sides of the outer wall of a single crossbeam (2). Fixed straight braces (4) are fixedly connected to both sides of the outer wall of the bottom crossbeam (2). An internal gear (7) is fixedly connected to one side of the outer wall of the fixed straight brace (4). A sliding rod (5) is connected through the front end of the outer wall of the fixed straight brace (4). Anti-slip foot braces (6) are slidably connected to the outer wall of the sliding rod (5). An external toothed sleeve (8) is fixedly connected to the side of the anti-slip foot brace (6) near the internal gear (7).

2. The ladder anti-slip device according to claim 1, characterized in that: The fixed diagonal brace (3), fixed straight brace (4), and anti-slip foot brace (6) are all H-shaped as a whole.

3. The ladder anti-slip device according to claim 1, characterized in that: The fixed diagonal brace (3) and the fixed straight brace (4) form a right-angled triangular support structure.

4. The ladder anti-slip device according to claim 1, characterized in that: The fixed straight brace (4) is perpendicular to the vertical bars on both sides of the ladder body.

5. The ladder anti-slip device according to claim 1, characterized in that: The outer gear sleeve (8) meshes with the inner gear (7).

6. The ladder anti-slip device according to claim 1, characterized in that: The slide bar (5) has an internal thread (9) on one side of its outer wall. The outer wall of the internal thread (9) is threaded with a nut (10). The nut (10) abuts against one side of the outer wall of the anti-slip foot support (6).

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