A ladder fixing device to prevent ladder slippage

Abstract

The utility model relates to the technical field of building engineering construction, concretely relates to a fixing device for preventing the slipping of ladder stand, including wall body A, its outside fixed two fixing devices, two fixing devices are in the same horizontal position, the distance between two fixing devices is slightly less than the length of the uppermost layer of ladder stand's step stick, the scheme adopts the ladder stand end fixing principle, through installing the fixing device at the fixed ladder stand position, can effectively avoid the slipping of ladder stand, prevents the construction personnel from falling from a height due to the slipping of ladder stand, increases the security of ladder stand operation.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a fixing device to prevent ladder slippage. Background Technology

[0002] Existing simple construction ladders often slip when used against walls due to slippery surfaces, posing a safety risk to workers climbing up and down. Common methods to eliminate this safety hazard include securing the ladder's base to soft ground and requiring external assistance on smooth surfaces to prevent slippage. This is not only cumbersome but also wastes labor. Summary of the Invention

[0003] To address the problems of existing technologies, this utility model provides a fixing device to prevent ladder slippage. The present utility model aims to provide a wall-mounted fixing device to solve the problems of ladder slippage during construction, the need for personnel to hold the ladder upright when climbing up and down, and the reduction of labor input.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A fixing device to prevent ladder slippage includes a wall A, on the outside of which two fixing devices are fixed, the two fixing devices are at the same horizontal position, and the distance between the two fixing devices is slightly less than the length of the top step of the ladder. The fixing device includes a supporting main beam, which is fixed to the wall A by a wall-mounted steel plate. The supporting main beam extends forward, and inner blocks and anti-slip blocks are fixed sequentially on the supporting main beam at intervals. An anti-detachment locking groove for placing the uppermost step of the ladder is formed between the inner blocks and the anti-slip blocks. An arc-shaped anti-detachment block is provided on the inner block for limiting the step.

[0005] An extended steel plate is provided on one side of the main supporting beam. The extended steel plate is located at the front end of the main supporting beam and is fully welded to the main supporting beam.

[0006] The cross-section of the extended steel plate is inverted "T" shape, and the upper surface of the extended steel plate is flush with the upper surface of the supporting main beam.

[0007] The anti-slip block is fixed to the outer steel plate.

[0008] The bottom of the anti-slip block has a slot, which is shaped like a "Π". The bottom of the anti-slip block is embedded into the outer steel plate through the slot, and then the anti-slip block is fixed to the outer steel plate by bolts.

[0009] A mounting ring is fixedly installed on the wall-mounted steel plate. A supporting main beam is installed inside the mounting ring, and the supporting main beam is fixedly connected to the mounting ring by bolts.

[0010] The upper and lower ends of the mounting collar are both through mounting holes, and there are multiple mounting holes arranged in a row. A through hole is also present at the rear end of the supporting main beam.

[0011] Compared with the prior art, the advantages of the utility model are: by adopting the principle of fixing the end of the ladder, and by installing a fixing device at the fixed ladder position, the ladder can be effectively prevented from slipping, thus preventing construction workers from falling from heights due to ladder slippage and increasing the safety of ladder operations. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 .

[0014] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 .

[0015] Figure 3 This is a schematic diagram of the structure of this utility model. Figure 3 .

[0016] Figure 4 This is a schematic diagram of the structure of this utility model. Figure 4 .

[0017] Figure 5 This is a diagram showing the usage state of this utility model. Detailed Implementation

[0018] The present invention will be further described in detail below through embodiments. The embodiments are only used to illustrate the present invention and do not limit the scope of the present invention.

[0019] Example 1: To prevent the ladder from moving when placed against a wall, the contact method between the wall and the ladder has been optimized. This solution provides a fixing device to prevent the ladder from slipping, including a wall A, on which two fixing devices are fixed on the outside. The two fixing devices are at the same horizontal position, and the distance between the two fixing devices is slightly less than the length of the top step of the ladder. The ladder can be relatively stably fixed by the two fixing devices.

[0020] The fixing device includes a supporting main beam 1, which is fixed to the wall A by a wall-mounted steel plate 4. The supporting main beam 1 extends forward, and an inner stop block 3 and an anti-slip stop block 2 are fixed on the supporting main beam 1 in sequence. An anti-detachment locking groove 6 for placing the uppermost step of the ladder is formed between the inner stop block 3 and the anti-slip stop block 2. An arc-shaped anti-detachment stop block 5 for limiting the step is provided on the inner stop block 3. Detailed explanation of the principle of this embodiment: A fixing device for preventing ladder slippage includes: a pair of fixing devices, the two fixing devices are spaced apart and located on both sides of the upper part of the ladder, the distance between the two is less than the width of the ladder, the upper part of the ladder is connected to the fixing devices. In order to ensure the stability of the ladder, the fixing device for preventing ladder slippage needs to be installed in two according to the width of the ladder to maintain the stability of the ladder. The fixing devices need to be kept horizontal and firmly installed during installation, and should be matched with the length of the ladder, the width or diameter of the steps.

[0021] refer to Figure 1 As shown, the fixing device includes a supporting main beam 1, which is fixed to the upper side wall of wall A. The supporting main beam 1 is set horizontally and is perpendicular to the wall 2. The supporting main beam 1 is made of a 20cm long, 4cm × 4cm × 0.5mm thick square steel pipe. The specific supporting main beam 1 is fixed to the surface of wall A by the wall-mounted steel plate 4. One end of the specific supporting main beam 1 is vertically welded to the wall-mounted steel plate 4. At the same time, the wall-mounted steel plate 4 is fixed to wall A by expansion anchor bolts (not shown in the figure), thereby realizing the vertical fixation of the supporting main beam 1 and wall A. The wall-mounted steel plate 4 can be made in different sizes, such as a steel plate that is about 8cm wide × 20cm long × 1cm thick and has bolt holes at both ends.

[0022] An anti-slip block 2 is fixedly installed at the outer end of the main beam 1, perpendicular to it. Specifically, the anti-slip block 2 is welded and fixed perpendicularly to the main beam 1. The cross-section of the anti-slip block 2 is trapezoidal, and its hypotenuse faces outward (forward). The width of the anti-slip block 2 is the same as the width of the main beam 1. An inner stop block 3 is fixed to the main beam 1 away from the anti-slip stop block 2. The inner stop block 3 is welded and fixed to the main beam 1. Specifically, the distance between the anti-slip stop block 2 and the inner stop block 3 is 40-80mm. The upper end of the inner stop block 3 is 80-100mm higher than the upper end of the anti-slip stop block 2. An arc-shaped anti-detachment stop block 5 is set on the inner stop block 3. The arc-shaped anti-detachment stop block 5 is connected to the inner stop block 3 by bolts. One end of the arc-shaped anti-detachment stop block 5 faces the anti-slip stop block 2. The length of the arc-shaped anti-detachment stop block 5 should be set so that its end can contact (overlap) with the anti-slip stop block 2 when it is lowered. An anti-detachment locking groove 6 is formed between the anti-slip block 2 and the inner block 3. In this embodiment, since the relative positions of the anti-slip block 2 and the inner block 3 are fixed (both are fixed on the supporting main beam 1), the position and size of the anti-detachment locking groove 6 are also relatively fixed. Even so, it can still meet the requirements for fixing and installing the ladder in most cases.

[0023] The main body of the arc-shaped anti-slip block 5 is an arc-shaped structure, with its concave arc facing the supporting main beam 1. The end of the arc-shaped anti-slip block 5 is a rounded surface. When in use, the arc-shaped surface at the end of the arc-shaped anti-slip block 5 contacts the inclined surface of the anti-slip block 2. In this way, the arc-shaped surface at the end of the arc-shaped anti-slip block 5 and the inclined surface of the anti-slip block 2 form a surface contact. If the end of the arc-shaped anti-slip block 5 or the contact end between the anti-slip block 2 and the arc-shaped anti-slip block 5 are both straight-edged structures, then a "hard collision" will inevitably occur between them in each contact, which will cause premature damage to the arc-shaped anti-slip block 5 or the anti-slip block 2. However, the design of the arc-shaped surface at the end of the arc-shaped anti-slip block 5 and the inclined surface of the anti-slip block 2 in the above-mentioned solution of this embodiment can significantly avoid the "hard collision" between the two. Considering the installation of the arc-shaped anti-detachment block 5 on the inner block 3, the top of the inner block 3 is integrally fixed with a vertical plate 301. By drilling holes in the vertical plate 301 and by providing through holes in the arc-shaped anti-detachment block 5 that match the vertical plate 301, the anti-detachment block 5 and the inner block 3 can be fixed by bolt tightening. When it is necessary to adjust the anti-detachment block 5, the tightness of the anti-detachment block 5 can be adjusted by turning the nut.

[0024] Choosing bolt fixing is based on two considerations: its cost advantage, its robustness, stability, reliability, and flexibility in tightening and loosening.

[0025] At this point, the construction of the single-sided fixing device is complete. The fixing device on the other side follows the same construction method, which will not be described in detail here.

[0026] When in use, manually move the ladder so that the top step bar is placed into the anti-detachment locking slot 6, and fix the arc-shaped anti-detachment block 5 to complete the installation of the ladder. After use, unlock the arc-shaped anti-detachment block 5 so that the arc-shaped anti-detachment block 5 can be lifted freely, and lift the ladder so that the step bar comes out of the anti-detachment locking slot 6.

[0027] Example 2: Reference Figure 2 Preferably, an extension steel plate 7 is provided on one side of the main supporting beam 1. The extension steel plate 7 is located at the front end of the main supporting beam 1 and is fully welded to the main supporting beam 1. The cross-section of the extended steel plate 7 is inverted "T" shape, and the upper end face of the extended steel plate 7 is flush with the upper end face of the supporting main beam 1; The anti-slip block 2 is fixed to the outer steel plate 7; a slot 201 is opened at the bottom of the anti-slip block 2, the slot 201 is in the shape of "Π", the bottom of the anti-slip block 2 is embedded into the outer steel plate 7 through the slot 201, and then the anti-slip block 2 and the outer steel plate 7 are fixed by bolts.

[0028] In Embodiment 1, since the size of the anti-detachment locking groove 6 is relatively fixed, the fixing device and the ladder of different sizes cannot be well matched. Based on this, this embodiment provides a fixing device based on Embodiment 1, which also includes an extended steel plate 7 with a T-shaped cross-section. The upper end face of the extended steel plate 7 is flush with the upper end face of the supporting main beam 1, and the inner end of the extended steel plate 7 is welded and fixed to the outer end of the supporting main beam 1. At the same time, the central axis of the supporting main beam 1 coincides with the central axis of the extended steel plate 7. Multiple parallel holes are linearly arrayed on the center plate 701 (vertical plate) of the extended steel plate 7. The fixing device also includes an anti-slip block 2, which has a trapezoidal cross-section with its hypotenuse facing outwards. The width of the anti-slip block 2 is the same as the width of the supporting main beam 1. A slot 201 is opened at the bottom of the anti-slip block 2. The slot 201 is in the shape of "Π". The slot 201 needs to match the center plate 701 of the outer steel plate 7. Considering the fixing of the anti-slip block 2 and the outer steel plate 7, a through hole can be opened on the side of the anti-slip block 2 towards the slot 201. When the anti-slip block 2 is moved to a suitable position on the outer steel plate 7, the through hole of the anti-slip block 2 can be aligned with the hole on the center plate 701, and then the anti-slip block 2 and the outer steel plate 7 can be fixed by bolts. Since the outer steel plate 7 is equivalent to the extension of the supporting main beam 1, and the inner block 3 is fixed to the supporting main beam 1 as described in embodiment 1, the position distance between the anti-slip block 2 and the inner block 3 can be adjusted by moving the anti-slip block 2 on the outer steel plate 7, thereby adjusting the size of the anti-detachment locking groove 6 and matching the placement requirements of the anti-detachment locking groove 6 for different ladders.

[0029] Example 3: Reference Figure 3 A mounting ring 8 is fixedly installed on the wall-mounted steel plate 4. A supporting main beam 1 is set inside the mounting ring 8. The supporting main beam 1 is fixedly connected to the mounting ring 8 by bolts. The upper and lower ends of the mounting ring 8 are both through mounting holes, and there are multiple mounting holes arranged in a row. The rear end of the supporting main beam 1 is through a hole. In Embodiment 1, since the supporting main beam 1 is fixed to the wall-mounted steel plate 4, and if the wall-mounted steel plate 4 is fixed relative to the wall A, then the position of the supporting main beam 1 relative to the wall A is fixed. At this time, the distance between the two fixing devices is fixed. Although this solution can be applied to the fixing of most ladders, it still lacks the flexibility of use and cannot meet the usage needs of some ladders. Based on this, the solution of Embodiment 1 is further improved. The fixing device also includes a mounting collar 8. The cross-section of the mounting collar 8 is in the shape of a "straight groove". The mounting collar 8 is vertically fixed at the position between the two fixing holes of the wall-mounted steel plate 4. Multiple mounting holes are correspondingly passed through the upper and lower end faces of the mounting collar 8. The mounting holes are arranged in a straight array along the left and right directions. The fixing device also includes a supporting main beam 1, which is made of a 20cm long, 4cm × 4cm × 0.5mm thick square steel pipe. One end of the supporting main beam 1 extends into the mounting ring 8, and a through hole is opened on the supporting main beam 1. When the supporting main beam 1 and the mounting ring 8 are installed, a set of mounting holes on the mounting ring 8 corresponds to the through hole on the supporting main beam 1, and then the mounting ring 8 and the supporting main beam 1 are fixed by bolts. In this way, the position of the supporting main beam 1 and the wall-mounted steel plate 4 can be adjusted. Since the wall-mounted steel plate 4 is fixed relative to the wall A, the position of the supporting main beam 1 relative to the wall A is effectively adjusted by the above method, thereby changing the overall position of the fixing device. This allows the left and right positions of the two fixing devices to be changed, so that the distance between the two fixing devices can be adjusted according to different types of ladders, increasing the flexibility of use.

[0030] Example 4: Reference Figure 4 Furthermore, although Embodiment 2 achieved the adjustment of the size of the anti-detachment locking groove 6 of the fixing device, and Embodiment 3 achieved the change of the left and right position of the main beam 1 relative to the wall A, that is, the left and right position of the two fixing devices, in actual use, the two situations often occur at the same time. Based on this, in order to improve Embodiments 1-3, this embodiment proposes an improvement scheme. The fixing device also includes a mounting collar 8. The cross-section of the mounting collar 8 is in the shape of a "straight groove". The mounting collar 8 is vertically fixed at the position between the two fixing holes of the wall-mounted steel plate 4. Multiple mounting holes are correspondingly passed through the upper and lower end faces of the mounting collar 8. The mounting holes are arranged in a straight array along the left and right direction. The mounting ring 8 is equipped with a supporting main beam 1, which is made of a 20cm long, 4cm×4cm×0.5mm thick square steel pipe. One end of the supporting main beam 1 extends into the mounting ring 8, and a through hole is opened on the supporting main beam 1. When the supporting main beam 1 is installed with the mounting ring 8, a set of mounting holes on the mounting ring 8 corresponds to the through hole on the supporting main beam 1, and then the mounting ring 8 and the supporting main beam 1 are fixed by bolts. An inner stop block 3 is fixed on the main beam 1 away from the anti-slip stop block 2. The inner stop block 3 is welded and fixed to the main beam 1. Specifically, the distance between the anti-slip stop block 2 and the inner stop block 3 is 40-80mm. The upper end of the inner stop block 3 is 80-100mm higher than the upper end of the anti-slip stop block 2. An arc-shaped anti-detachment stop block 5 is set on the inner stop block 3. The arc-shaped anti-detachment stop block 5 is connected to the inner stop block 3 by bolts. One end of the arc-shaped anti-detachment stop block 5 faces the anti-slip stop block 2. The length of the arc-shaped anti-detachment stop block 5 should be set so that its end can contact (overlap) with the anti-slip stop block 2 when it is lowered. An anti-detachment locking groove 6 is formed between the anti-slip stop block 2 and the inner stop block 3. An extended steel plate 7 with a T-shaped cross-section is fixed to the outer end of the main beam 1. The upper end face of the extended steel plate 7 is flush with the upper end face of the main beam 1, and the inner end of the extended steel plate 7 is welded and fixed to the outer end of the main beam 1. At the same time, the central axis of the main beam 1 coincides with the central axis of the extended steel plate 7. Multiple parallel holes are linearly arrayed on the center plate 701 (vertical plate) of the extended steel plate 7. Anti-slip blocks 2 are matched on the outer steel plate 7. The cross-section of the anti-slip blocks 2 is trapezoidal, and its hypotenuse faces outward. The width of the anti-slip blocks 2 is the same as the width of the supporting main beam 1. A slot 201 is opened at the bottom of the anti-slip blocks 2. The slot 201 is in the shape of "Π". The slot 201 matches the center plate 701 of the outer steel plate 7.

[0031] Detailed explanation of the principle of this embodiment: One end of the supporting main beam 1 can be matched and inserted into the mounting sleeve 8. At this time, the left and right positions of the supporting main beam 1 relative to the mounting sleeve 8 can be adjusted as needed. After the position of the supporting main beam 1 in the mounting sleeve 8 is properly adjusted, the position of the supporting main beam 1 relative to the mounting sleeve 8 is fixed by bolts. Similarly, according to the size requirements of the ladder, the distance between the supporting main beam 1 and the mounting sleeve 8 of the other fixing device is adjusted so that the distance between the two fixing devices is slightly smaller than the width of the ladder, so that the subsequent ladder can be stably matched and placed between the two fixing devices. At the same time, in order to enable ladders of different sizes to be matched and placed in the anti-detachment locking groove 6 between the anti-slip block 2 and the inner block 3, the position of the anti-slip block 2 on the outer steel plate 7 is moved to control the distance of the anti-detachment locking groove 6, thereby meeting the placement requirements of ladders of different sizes.

[0032] In conjunction with embodiments 1-4, according to the above technical solution, when in use, the left and right positions of the main beam 1 can be adjusted in advance by installing the collar 8 as needed. Note that the position of the main beam 1 supported by a single-sided fixing device can be adjusted, or the position of the main beam 1 supported by both sides of the fixing device can be adjusted. Adjust the anti-slip block 2 in advance to fix the position of the outer steel plate 7 as needed. Try to adjust the position of the anti-slip block 2 on both sides of the fixing device at the same time so that the anti-slip block 2 on both sides of the fixing device is aligned.

[0033] The bottom of the ladder is placed on the ground at an angle relative to the fixing device. At the same time, the upper step of the ladder falls into the anti-detachment locking groove 6 of the two fixing devices. The upper step is located between the two fixing devices. The step is relatively stable in the anti-detachment locking groove 6 by fixing the arc-shaped anti-detachment block 5. In summary, this solution achieves a relatively secure fixation of the ladder steps through the coordinated use of two fixing devices. In addition, an arc-shaped anti-detachment block 5 is set on the anti-detachment groove 6 of each fixing device to further prevent the ladder from shifting during use. Furthermore, the left and right movable adjustment of the supporting main beam 1 relative to the wall-mounted steel plate 4 and the adjustable distance of the anti-detachment groove 6 further enhance the flexibility of the device.

[0034] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A fixing device for preventing ladder slippage, characterized in that, Including wall A, two fixing devices are fixed on its outer side. The two fixing devices are at the same horizontal position, and the distance between the two fixing devices is slightly less than the length of the top step of the ladder. The fixing device includes a supporting main beam, which is fixed to the wall A by a wall-mounted steel plate. The supporting main beam extends forward, and inner blocks and anti-slip blocks are fixed on the supporting main beam in sequence. An anti-detachment locking groove for placing the uppermost step of the ladder is formed between the inner blocks and the anti-slip blocks. The inner blocks are provided with arc-shaped anti-detachment blocks for limiting the step.

2. The fixing device for preventing ladder slippage according to claim 1, characterized in that, An extended steel plate is provided on one side of the main supporting beam. The extended steel plate is located at the front end of the main supporting beam and is fully welded to the main supporting beam.

3. The fixing device for preventing ladder slippage according to claim 2, characterized in that, The cross-section of the extended steel plate is inverted "T" shape, and the upper surface of the extended steel plate is flush with the upper surface of the supporting main beam.

4. The fixing device for preventing ladder slippage according to claim 3, characterized in that, The anti-slip block is fixed to the outer steel plate.

5. The fixing device for preventing ladder slippage according to claim 4, characterized in that, The bottom of the anti-slip block has a slot, which is shaped like a "Π". The bottom of the anti-slip block is embedded into the outer steel plate through the slot, and then the anti-slip block is fixed to the outer steel plate by bolts.

6. The fixing device for preventing ladder slippage according to any one of claims 1-5, characterized in that, A mounting ring is fixedly installed on the wall-mounted steel plate. A supporting main beam is installed inside the mounting ring, and the supporting main beam is fixedly connected to the mounting ring by bolts.

7. The fixing device for preventing ladder slippage according to claim 6, characterized in that, The upper and lower ends of the mounting collar are both through mounting holes, and there are multiple mounting holes arranged in a row. The rear end of the supporting main beam is through a through hole.

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