A climbing aid

Abstract

The present application relates to the technical field of climbing aid, in particular to a climbing aid device, which comprises a climbing ladder body and a crossbar arranged on the climbing ladder body, and a plurality of extension rods are arranged between the climbing ladder body and the crossbar; further comprising: a movable mechanism arranged in the climbing ladder body; a locking mechanism arranged above the movable mechanism and locking the movable mechanism through the locking mechanism; a limiting mechanism arranged above the locking mechanism, and the locking mechanism can only lock the movable mechanism when the climbing ladder body is perpendicular to the ground through the limiting mechanism cooperating with the locking mechanism; the climbing aid device, through the limiting mechanism cooperating with the locking mechanism and the movable mechanism, makes the extension rod can be extended in the climbing ladder body, so that the climbing ladder body changes the height on both sides, so that the climbing ladder body can be horizontal with the ground, and when the climbing ladder body is not horizontal with the ground, the length of the extension rod cannot be fixed.

Description

Technical Field

[0001] This invention relates to the field of climbing assistance technology, specifically a climbing assistance device. Background Technology

[0002] A ladder is an everyday tool, usually consisting of two long, thick bars with a horizontal bar in the middle for climbing. It is used for climbing to higher places and is frequently used in daily life and work.

[0003] For stability during use, ladders need to be placed on flat terrain. However, in current use, when encountering uneven ground, it is necessary to change the climbing location. After climbing up, it is necessary to move back to the work site, or to level the ground before placing the ladder. This is very dangerous for workers. Therefore, we propose a climbing assistance device. Summary of the Invention

[0004] One of the technical problems this application aims to solve is: how to prevent the sides of a ladder with variable length from being fixed when the climbing bar is not horizontal.

[0005] To solve the above-mentioned technical problems, this application provides a climbing assistance device, including a climbing ladder body and a crossbar disposed on the climbing ladder body, wherein a plurality of extension rods are disposed between the climbing ladder body and the crossbar;

[0006] It also includes:

[0007] The activity mechanism is located inside the main body of the ladder.

[0008] A locking mechanism is provided above the movable mechanism to lock the movable mechanism.

[0009] A limiting mechanism is provided above the locking mechanism. By cooperating with the locking mechanism, the locking mechanism can only lock the movable mechanism when the main body of the ladder is perpendicular to the ground.

[0010] In some embodiments, the limiting mechanism includes a horizontal shaft, which is disposed inside the ladder body. A mounting base is rotatably disposed on the horizontal shaft, and a T-shaped magnet is rotatably disposed on the mounting base. A blocking mechanism is disposed inside the ladder body.

[0011] In some embodiments, the blocking mechanism includes a mounting plate disposed below the T-shaped magnet, a magnetic attracting block is disposed through the mounting plate, and a plurality of limiting blocks are disposed on the magnetic attracting block, the limiting blocks being located at the upper and lower ends of the magnetic attracting block respectively, and the lower end of the magnetic attracting block being configured as an inclined surface.

[0012] In some embodiments, the locking mechanism includes a movable block with embedded strips on both sides, the movable block sliding on the ladder body via the embedded strips, a spring between the movable block and the ladder body, a locking component below the movable block, and a handle after the embedded strip passes through the ladder body.

[0013] In some embodiments, the upper end of the moving block is provided with an inclined surface that is parallel to the lower end of the limiting block.

[0014] In some embodiments, the engaging assembly includes an engaging plate disposed below the moving block, and a connecting rod is rotatably connected between the engaging plate and the moving block. A limiting plate is provided inside the ladder body, and the limiting plate is located on both sides of the engaging plate. The engaging plate slides on the ladder body through the limiting plate.

[0015] In some embodiments, the movable mechanism includes a second horizontal axis disposed inside the main body of the ladder, a gear disposed on the second horizontal axis, and a polygonal block disposed on the second horizontal axis, the polygonal block being located below the locking plate.

[0016] In some embodiments, the snap-fit ​​plate has a polygonal groove, and the polygonal block can be embedded in the snap-fit ​​plate.

[0017] In some embodiments, the upper end of the extension rod is provided with a rack, which meshes with a gear, and the lower end of the extension rod is provided with a rotating seat. The extension rod is rotatably mounted on the crossbar through the rotating seat. A limit groove is opened on one side of the extension rod, and a limit post is provided through the main body of the ladder. The limit post can slide in the limit groove.

[0018] In some embodiments, the lower end of the T-shaped magnet is configured with an arc-shaped surface, the arc-shaped surface being centered on the horizontal axis.

[0019] The present invention has at least the following beneficial effects:

[0020] In this invention, the extension rod can be extended within the main body of the climbing ladder by using a limiting mechanism in conjunction with a locking mechanism and a movable mechanism. This allows the climbing crossbar of the climbing ladder to be level with the ground by changing the height of both sides of the main body of the climbing ladder. Furthermore, the length of the extension rod cannot be fixed when the climbing crossbar is not level with the ground. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0023] Figure 3For the present invention Figure 1 Schematic diagram of partial cross-section Figure 1 ;

[0024] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point B;

[0025] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point C;

[0026] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point D;

[0027] Figure 7 For the present invention Figure 1 Schematic diagram of partial cross-section Figure 2 ;

[0028] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point E;

[0029] Figure 9 This is a schematic diagram of the locking mechanism structure of the present invention;

[0030] Figure 10 This is a schematic diagram of the T-shaped magnet structure of the present invention.

[0031] In the diagram: 1-Main body of the ladder; 2-Horizontal bar; 3-Restriction mechanism; 31-Horizontal axis one; 32-Mounting base; 33-T-shaped magnet; 34-Blocking mechanism; 341-Mounting plate; 342-Magnetic block; 343-Limiting block; 4-Locking mechanism; 41-Moving block; 411-Embedded strip; 42-Spring; 43-Interlocking assembly; 431-Interlocking plate; 432-Limiting plate; 433-Connecting rod; 5-Extension rod; 51-Rack; 52-Rotating seat; 53-Limiting groove; 6-Moving mechanism; 61-Horizontal axis two; 62-Gear; 63-Polygonal block; 7-Handle; 8-Limiting post. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] Please see Figure 1-9The present invention provides a technical solution: a climbing assistance device, including a climbing ladder body 1 and a crossbar 2 disposed on the climbing ladder body 1, a plurality of extension rods 5 disposed between the climbing ladder body 1 and the crossbar 2, and further including: a movable mechanism 6 disposed within the climbing ladder body 1 and a locking mechanism 4 disposed above the movable mechanism 6, the movable mechanism 6 is locked by the locking mechanism 4, and a limiting mechanism 3 disposed above the locking mechanism 4, the limiting mechanism 3 cooperates with the locking mechanism 4 so that the locking mechanism 4 can only lock the movable mechanism 6 when the climbing ladder body 1 is perpendicular to the ground.

[0035] The limiting mechanism 3 includes a horizontal axis 31, which is installed inside the ladder body 1. A mounting base 32 is rotatably mounted on the horizontal axis 31, and a T-shaped magnet 33 is rotatably mounted on the mounting base 32. A blocking mechanism 34 is installed inside the ladder body 1. Through the mounting base 32, when the ladder body 1 is tilted against the wall, the T-shaped magnet 33 can rotate back and forth on the horizontal axis 31, preventing the T-shaped magnet 33 from getting stuck when rotating in the tilted state.

[0036] The blocking mechanism 34 includes a mounting plate 341, which is positioned below the T-shaped magnet 33. A magnetic attracting block 342 is disposed through the mounting plate 341, and multiple limiting blocks 343 are disposed on the magnetic attracting block 342. The limiting blocks 343 are located at the upper and lower ends of the magnetic attracting block 342, and the lower end of the magnetic attracting block 342 is set as an inclined surface. The movement range of the magnetic attracting block 342 is limited by the limiting blocks 343, thereby limiting the magnetic attracting block 342 from contacting the T-shaped magnet 33 when it is attracted and lifted, so as to prevent the T-shaped magnet 33 from getting stuck when it is separated.

[0037] The locking mechanism 4 includes a movable block 41, with embedded strips 411 on both sides of the movable block 41. The movable block 41 slides on the ladder body 1 via the embedded strips 411. A spring 42 is provided between the movable block 41 and the ladder body 1. A locking component 43 is provided below the movable block 41. A handle 7 is provided after the embedded strips 411 pass through the ladder body 1.

[0038] The upper end of the movable block 41 is provided with an inclined surface that is parallel to the lower end of the limiting block 343.

[0039] The upper end of the movable block 41 is provided with an inclined surface that is parallel to the lower end of the limiting block 343. When the movable block 41 is pulled to unlock, the movable block 41 can pass smoothly through the limiting block 343. When the limiting block 343 is not lifted, the movable block 41 cannot automatically reset. The moving direction of the movable block 41 is restricted by the embedded strip 411, while the spring 42 can be used repeatedly.

[0040] The locking assembly 43 includes a locking plate 431, which is located below the moving block 41. A connecting rod 433 is rotatably connected between the locking plate 431 and the moving block 41. A limit plate 432 is provided inside the ladder body 1, located on both sides of the locking plate 431. The locking plate 431 slides on the ladder body 1 through the limit plate 432. The locking plate 431 and the moving block 41 are connected by the connecting rod 433. Under the premise of achieving linkage, the structure is more stable than the connection structure such as ropes, and no reset structure is required.

[0041] The active mechanism 6 includes a second horizontal axis 61, which is installed inside the main body 1 of the climbing ladder. A gear 62 is installed on the second horizontal axis 61, and a polygonal block 63 is installed on the second horizontal axis 61. The polygonal block 63 is located below the locking plate 431.

[0042] The snap-fit ​​plate 431 has a polygonal groove, and the polygonal block 63 can be embedded in the snap-fit ​​plate 431.

[0043] By embedding the polygon block 63 into the polygon slot, the polygon slot can adjust the angle of the polygon block 63 when the polygon block 63 cannot smoothly enter the polygon slot on both sides.

[0044] The upper end of the extension rod 5 is provided with a rack 51, which meshes with a gear 62. The lower end of the extension rod 5 is provided with a rotating seat 52. The extension rod 5 is rotatably mounted on the crossbar 2 via the rotating seat 52. A limit groove 53 is opened on one side of the extension rod 5. A limit post 8 is provided through the main body of the ladder. The limit post 8 can slide in the limit groove 53 and is connected to the gear 62 via the rack 51. When the gear 62 cannot rotate, the position of the rack 51 cannot be changed. This can limit the position of the extension rod 5. The limit groove 53 restricts the range of movement of the extension rod 5 and prevents the extension rod 5 from separating from the main body of the ladder 1. The structure is simple and highly practical.

[0045] When using the ladder, if the ground is uneven, the handle 7 moves the movable block 41 to one side. When it contacts the magnetic block 342, the inclined surface at its upper end allows the magnetic block 342 to pass smoothly, while the other side cannot pass through the magnetic block 342, thus restricting its position. As the movable block 41 moves, the connecting rod 433 causes the locking plate 431 to rise along the limiting plate 432, thereby freeing the polygonal block 63 from the restriction of the locking plate 431, allowing the horizontal axis 61 to rotate freely. When the extension rod 5 extends, the rack 51 causes the gear 62 to rotate. Since the T-shaped magnet 33 initially... When the ladder body 1 is tilted, the magnetic block 342 cannot be directly under the T-shaped magnet 33. Once the magnetic block 342 is directly under the T-shaped magnet 33, it is attracted by the T-shaped magnet 33 and lifted up. The moving block 41 can be reset under the action of the spring 42. The polygonal block 63 is embedded in the locking plate 431, so that the horizontal shaft 61 cannot rotate, and thus the gear 62 cannot rotate. In this way, the position of the rack 51 cannot be changed, thus fixing the length of the extension rod 5. By setting the extension rods 5 on both sides of the ladder body 1 to different lengths, it can be adapted to working on the inclined ground.

[0046] Example 2

[0047] Please see Figure 1-10 The present invention provides a technical solution: a climbing assistance device, wherein embodiment 2 is an optimization based on embodiment 1;

[0048] The lower end of the T-shaped magnet 33 is set with an arc-shaped surface, and the arc-shaped surface is centered on the horizontal axis 31.

[0049] By setting the lower end of the T-shaped magnet 33 to an arc-shaped surface with the center of the arc-shaped surface on the horizontal axis 31, since the ladder body 1 needs to be placed against the wall, the ladder body 1 will inevitably be tilted. In this way, the T-shaped magnet 33 rotates on the horizontal axis 31 through the mounting base 32, and the arc-shaped surface with the center of the horizontal axis 31 can ensure that the lower end of the T-shaped magnet 33 is at the same distance from the magnetic block 342 at different angles, thus ensuring the effect of use.

[0050] 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.

[0051] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A climbing assistance device, comprising a climbing ladder body (1) and a crossbar (2) disposed on the climbing ladder body (1), characterized in that: Multiple extension rods (5) are provided between the main body (1) and the crossbar (2) of the climbing ladder; It also includes: The activity mechanism (6) is installed inside the main body (1) of the climbing ladder; A locking mechanism (4) is provided above the movable mechanism (6) to lock the movable mechanism (6); The limiting mechanism (3) is located above the locking mechanism (4). By cooperating with the locking mechanism (4), the locking mechanism (4) can lock the movable mechanism (6) only when the main body of the ladder (1) is perpendicular to the ground. The limiting mechanism (3) includes a horizontal shaft (31), which is installed inside the ladder body (1). A mounting base (32) is rotatably installed on the horizontal shaft (31), and a T-shaped magnet (33) is rotatably installed on the mounting base (32). A blocking mechanism (34) is installed inside the ladder body (1). The blocking mechanism (34) includes a mounting plate (341) which is located below the T-shaped magnet (33). A magnetic block (342) is provided through the mounting plate (341). A plurality of limiting blocks (343) are provided on the magnetic block (342). The limiting blocks (343) are located at the upper and lower ends of the magnetic block (342) respectively. The lower end of the magnetic block (342) is set as an inclined surface. The locking mechanism (4) includes a movable block (41), and embedded strips (411) are provided on both sides of the movable block (41). The movable block (41) slides on the ladder body (1) through the embedded strips (411). A spring (42) is provided between the movable block (41) and the ladder body (1). A locking component (43) is provided below the movable block (41). A handle (7) is provided after the embedded strip (411) passes through the ladder body (1). The engaging assembly (43) includes an engaging plate (431), which is located below the moving block (41). A connecting rod (433) is rotatably connected between the engaging plate (431) and the moving block (41). A limiting plate (432) is provided inside the ladder body (1), which is located on both sides of the engaging plate (431). The engaging plate (431) slides on the ladder body (1) through the limiting plate (432). The active mechanism (6) includes a second horizontal shaft (61), which is installed inside the main body (1) of the ladder. A gear (62) is installed on the second horizontal shaft (61), and a polygonal block (63) is installed on the second horizontal shaft (61). The polygonal block (63) is located below the locking plate (431). The upper end of the extension rod (5) is provided with a rack (51), which meshes with a gear (62). The lower end of the extension rod (5) is provided with a rotating seat (52). The extension rod (5) is rotatably mounted on the crossbar (2) through the rotating seat (52). A limiting groove (53) is opened on one side of the extension rod (5). A limiting post (8) is provided through the main body (1) of the climbing ladder. The limiting post (8) can slide in the limiting groove (53).

2. The climbing assistance device according to claim 1, characterized in that: The snap-fit ​​plate (431) has a polygonal groove, and the polygonal block (63) can be embedded in the snap-fit ​​plate (431).

3. The climbing assistance device according to claim 1, characterized in that: The lower end of the T-shaped magnet (33) is set with an arc-shaped surface, and the arc-shaped surface is centered on the horizontal axis (31).

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