Height-adjustable mountainous zigzag ladder

Abstract

The utility model belongs to adjustable herringbone ladder technical field, and disclose a height adjustable herringbone ladder for mountain, including the lower end surface both sides of herringbone ladder body all fixedly equipped with ladder foot, the lower end surface of ladder foot is fixedly equipped with telescopic block no.

Description

Technical Field

[0001] This utility model belongs to the technical field of adjustable A-frame ladders, specifically a height-adjustable A-frame ladder for mountainous terrain. Background Technology

[0002] The process of setting up the scaffolding is complex and requires a lot of time and manpower. It is not suitable for mountainous environments with complex terrain and frequently changing work locations. Furthermore, the height adjustment of the scaffolding is not convenient enough to adapt to the large changes in height during mountain operations.

[0003] Meanwhile, a type of A-frame ladder, disclosed in announcement number CN215169665U, includes a ladder body, a support portion of which is equipped with rollers, and a moving device on the ladder body for controlling its movement. The moving device includes a support rod, one end of which is rotatably connected to the ladder body. A braking device is also provided on the ladder body to control the rollers' rotation. The braking device includes a brake block, rotatably mounted above the rollers radially. A linkage rope, one end of which is connected to the brake block, and the other end connected to a control device mounted on the ladder body. The control device controls the linkage rope to move axially, and this axial movement controls the contact between the brake block and the rollers.

[0004] The aforementioned type of A-frame ladder can only improve upon the fact that it cannot be moved freely. It also cannot be extended or retracted, resulting in a fixed length. This limits its use in different height scenarios, makes it inconvenient to transport and store, and occupies a large space during use.

[0005] Therefore, a height-adjustable A-frame ladder for mountainous terrain is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a height-adjustable A-frame ladder for mountain use. It has the advantages of allowing users to adjust the length of the ladder legs to any length when using it on uneven ground or slopes, adjusting the horizontal steps to be horizontal, keeping the ladder balanced and stable, increasing climbing safety and convenience, and flexibly adapting to different mountain terrains, thus improving the ladder's applicability and practicality.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a height-adjustable A-frame ladder for mountain use, comprising ladder feet fixedly provided on both the left and right sides of the lower end face of the ladder body, a second telescopic block fixedly provided on the lower end face of the ladder feet, a first telescopic block slidably provided on the outer side of the lower end face of the second telescopic block, and a base of the first telescopic block slidably provided on the outer side of the lower end face of the first telescopic block.

[0008] Preferably, a foldable support plate is fixedly provided on the inner side of the telescopic block base, a foldable step is fixedly provided on the upper end face of the A-frame ladder body, a buckle groove is provided on the left and right sides of the upper end face of the telescopic block base, a buckle groove is provided on the left and right sides of the upper end face of the telescopic block, and a foldable fixing plate is fixedly provided in the middle of the inner side of the A-frame ladder body.

[0009] By adopting the above technical solutions, the stability, convenience, and foldability of A-frame ladders can be increased in different scenarios, thereby improving the user experience and ease of storage.

[0010] Preferably, a storage box is fixedly provided on the front right end face of the foldable pedal, and a lighting device is fitted inside the right side of the storage box.

[0011] By adopting the above technical solutions, items can be stored conveniently and lighting can be provided when there is insufficient light, thus meeting diverse operational needs.

[0012] Preferably, the lower end face of the A-frame ladder body is provided with a threaded groove, and the front and rear sides of the ladder feet are fitted with fixing bodies. A cylinder is fixed to the inner side of the lower end of the fixing body, and the cylinder passes through the ladder feet.

[0013] By adopting the above technical solution, the initial connection and positioning of the ladder feet and the A-frame ladder body can be effectively achieved.

[0014] Preferably, a groove is formed inside the lower end face of the A-frame ladder body, and the cylinder rotates inside the groove. A bolt is inserted through the upper inner side of the fixing body, and the bolt rotates inside the threaded groove.

[0015] By adopting the above technical solution, the ladder feet can be firmly fixed to the A-frame ladder body, ensuring structural stability.

[0016] Preferably, the lower end face of the telescopic block one is provided with column grooves on both the left and right sides, and a spring buckle is fixedly installed inside the column groove. The lower end face of the telescopic block base is provided with column grooves on both the left and right sides, and a spring buckle is fixedly installed inside the column groove.

[0017] By adopting the above technical solution, the telescopic structure can be quickly positioned and fixed when adjusting the height of the A-frame ladder, ensuring stable and reliable height adjustment.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This utility model uses telescopic blocks and ladder corners to adjust the length of the ladder legs arbitrarily when used on uneven ground or hillsides, so as to adjust the horizontal steps to be horizontal, keep the ladder balanced and stable, increase climbing safety and convenience, and can also flexibly adapt to different mountainous terrains, thus improving the applicability and practicality of the ladder.

[0020] 2. This utility model utilizes a storage box and a lighting device. The storage box can store tools and materials, reducing the hassle of going up and down the ladder to retrieve items and improving work efficiency. The lighting device can provide illumination in mountainous environments with insufficient light, ensuring operational safety. The combination of the two greatly enhances the practicality and convenience of the ladder when working in mountainous areas. Attached Figure Description

[0021] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Fig. 2 This is a schematic diagram of the installation structure of the telescopic block base of this utility model;

[0023] Fig. 3 This is a schematic diagram of the installation structure of the spring buckle of this utility model;

[0024] Fig. 4 This is a schematic diagram of the installation structure of the threaded groove of this utility model.

[0025] In the diagram: 1. A-frame ladder body; 2. Foldable step; 3. Storage box; 4. Lighting device; 5. Foldable fixing plate; 6. Telescopic block base; 7. Foldable support plate; 8. Telescopic block one; 9. Telescopic block two; 10. Ladder foot; 11. Fixing body; 12. Bolt; 13. Clip groove; 14. Column; 15. Spring clip; 16. Column groove; 17. Threaded groove; 18. Groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] The following describes an embodiment of this utility model based on its overall structure.

[0028] like Figs. 1 to 4 As shown, this utility model provides a height-adjustable A-frame ladder for mountain use, including ladder feet 10 fixed on both the left and right sides of the lower end face of the ladder body 1 for fixing, and telescopic blocks 2 9 fixed on the lower end face of the ladder feet 10 for telescopic adjustment, and telescopic blocks 1 8 slidably provided on the outer side of the lower end face of telescopic blocks 2 9, and telescopic block base 6 slidably provided on the outer side of the lower end face of telescopic blocks 1 8 for fixing.

[0029] A foldable support plate 7 is fixedly installed on the inner side of the telescopic block base 6 for fixing purposes. A foldable step 2 is fixedly installed on the upper end face of the A-frame ladder body 1. The upper end face of the telescopic block base 6 has fastening grooves 13 on the left and right sides. The upper end face of the telescopic block 8 has fastening grooves 13 on the left and right sides. A foldable fixing plate 5 is fixedly installed in the middle of the inner side of the A-frame ladder body 1 for fixing purposes.

[0030] A storage box 3 is fixedly installed on the front right end of the foldable pedal 2 for storage purposes. A lighting device 4 is attached to the inside of the right side of the storage box 3 for lighting purposes.

[0031] The lower end face of the A-frame ladder body 1 is provided with a threaded groove 17. The front and rear sides of the ladder feet 10 are fitted with fixing bodies 11. The inner side of the lower end of the fixing body 11 is fixed with a cylinder 14 to play a rotational role, and the cylinder 14 passes through the ladder feet 10.

[0032] The lower end face of the A-frame ladder body 1 has a groove 18, and the cylinder 14 rotates inside the groove 18. The upper inner side of the fixing body 11 is provided with a bolt 12 for fixing, and the bolt 12 rotates inside the threaded groove 17.

[0033] The lower end face of the telescopic block 8 has grooves 16 on both the left and right sides. Spring buckles 15 are fixed inside the grooves 16. The lower end face of the telescopic block base 6 has grooves 16 on both the left and right sides. Spring buckles 15 are fixed inside the grooves 16 to fix it.

[0034] The working principle and process of a height-adjustable A-frame ladder for mountainous terrain:

[0035] The height adjustment of the A-frame ladder is mainly achieved through the sliding cooperation of telescopic block 1 (8), telescopic block 2 (9), and telescopic block base 6. Telescopic block 2 9 is fixed to the lower end face of ladder foot 10. Telescopic block 1 8 can slide on the outside of the lower end face of telescopic block 2 9. Telescopic block base 6 can slide on the outside of the lower end face of telescopic block 1 8. When it is necessary to raise the A-frame ladder, manually pull telescopic block 1 8 out of telescopic block 2 9 and telescopic block base 6 out of telescopic block 1 8. During the pulling process, the spring buckles 15 in the column grooves 16 on the left and right sides of the lower end face of telescopic block 1 8 and telescopic block base 6 play a positioning role. When pulled out to the appropriate position, the spring buckles 15 will pop out and lock to ensure the stability of the telescopic structure, thereby fixing the raising height of the A-frame ladder. When it is necessary to lower the height of the A-frame ladder, press the spring buckles 15 to retract them into the column grooves 16, and then push telescopic block 1 8 into telescopic block 2 9 and telescopic block base 6 into telescopic block 1 8 until the required lower height is reached. The spring buckles 15 pop out and lock again. The foldable step 2 is fixed to the upper end face of the A-frame ladder body 1. It can be unfolded when in use to provide a working platform for the user.When not in use, it can be folded up to reduce space occupation and make it convenient to carry and store. When in use, unfold the foldable step 2 from the folded state to the horizontal position so that it can support the user's weight. After use, fold the foldable step 2 upward and attach it to the upper surface of the A-frame ladder body 1. The foldable support plate 7 is fixed to the inside of the telescopic block base 6. When the A-frame ladder is placed on uneven ground such as mountains, unfolding the foldable support plate 7 can increase the stability of the A-frame ladder. When not in use, it can be folded up for easy storage. When the A-frame ladder is placed on the ground, unfold the foldable support plate 7 from the inside of the telescopic block base 6 so that it contacts the ground and expands the support area. After use, fold the foldable support plate 7 inward. The foldable fixing plate 5 is fixed to the inner middle of the A-frame ladder body 1, which is attached to the inner side of the telescopic block base 6. It serves to connect and reinforce the two sides of the A-frame ladder. It can also be folded. When the A-frame ladder is unfolded, the foldable fixing plate 5 unfolds with it, connecting the two sides of the A-frame ladder together and enhancing the stability of the overall structure. When storing the A-frame ladder, the foldable fixing plate 5 can be folded up, so that the A-frame ladder can be stored compactly. The lower end face of the A-frame ladder body 1 has a threaded groove 17. The front and rear sides of the ladder feet 10 are attached to the fixing bodies 11. The cylinder 14 on the inner side of the lower end of the fixing body 11 passes through the ladder feet 10, and the cylinder 14 can rotate in the groove 18 opened inside the lower end face of the A-frame ladder body 1. The upper end of the inner side of the fixing body 11 passes through the groove 18. Bolt 12 can rotate inside threaded groove 17. The bolt 12, through its engagement with threaded groove 17, secures the ladder leg 10 to the lower end of the A-frame ladder body 1. When installing the ladder leg 10, place it at a suitable position on the lower end face of the A-frame ladder body 1, ensuring the fixing body 11 fits against the front and rear sides of the ladder leg 10. Insert cylinder 14 into groove 18, then insert bolt 12 into the upper inner side of fixing body 11 and screw it into threaded groove 17. Tighten bolt 12 within threaded groove 17 by rotating it, thus firmly fixing the ladder leg 10 to the lower end of the A-frame ladder body 1. To remove the ladder leg 10, rotate bolt 12 in the opposite direction to remove it from threaded groove 17, then remove fixing body 11 from the ladder leg 10. The ladder feet 10 are separate from the A-frame ladder body 1. A storage box 3 is fixed to the front right side of the foldable step 2, used to store small tools or items for easy access when working at height. Before using the A-frame ladder, the necessary tools or items are placed in the storage box 3. During operation, items can be retrieved from the storage box 3 at any time. After use, the items are returned to the storage box 3. A lighting device 4 is fitted inside the right side of the storage box 3, providing illumination in low-light environments, such as at night or in shady mountain areas, facilitating user work. When illumination is needed, the lighting device 4 is retrieved from the inside right side of the storage box 3 and turned on. After use, the lighting device 4 is returned to the storage box 3.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A height-adjustable A-frame ladder for mountain use, comprising a ladder body (1), characterized in that: The lower end face of the A-frame ladder body (1) is fixedly provided with ladder feet (10) on both the left and right sides. The lower end face of the ladder feet (10) is fixedly provided with telescopic block two (9). The lower end face of the telescopic block two (9) is slidably provided with telescopic block one (8). The lower end face of the telescopic block one (8) is slidably provided with telescopic block base (6).

2. The height-adjustable A-frame ladder for mountain use according to claim 1, characterized in that: A foldable support plate (7) is fixedly provided on the inner side of the telescopic block base (6), a foldable step plate (2) is fixedly provided on the upper end face of the A-frame ladder body (1), a buckle groove (13) is provided on the left and right sides of the upper end face of the telescopic block base (6), a buckle groove (13) is provided on the left and right sides of the upper end face of the telescopic block (8), and a foldable fixing plate (5) is fixedly provided in the middle of the inner side of the A-frame ladder body (1).

3. The height-adjustable A-frame ladder for mountain use according to claim 2, characterized in that: A storage box (3) is fixedly provided on the front right end face of the foldable pedal (2), and a lighting device (4) is attached to the inside of the right side of the storage box (3).

4. The height-adjustable A-frame ladder for mountain use according to claim 1, characterized in that: The lower end face of the A-frame ladder body (1) is provided with a threaded groove (17), and the front and rear sides of the ladder feet (10) are fitted with fixing bodies (11). The inner side of the lower end of the fixing body (11) is fixed with a cylinder (14), and the cylinder (14) passes through the ladder feet (10).

5. A height-adjustable A-frame ladder for mountain use according to claim 4, characterized in that: The lower end face of the A-frame ladder body (1) has a groove (18) inside, and the cylinder (14) rotates inside the groove (18). The upper inner side of the fixing body (11) is provided with a bolt (12), and the bolt (12) rotates inside the threaded groove (17).

6. The height-adjustable A-frame ladder for mountain use according to claim 1, characterized in that: The lower end face of the telescopic block (8) is provided with column grooves (16) on both the left and right sides. A spring buckle (15) is fixed inside the column groove (16). The lower end face of the telescopic block base (6) is provided with column grooves (16) on both the left and right sides.

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