A folding flip-lock roof ladder

Abstract

This utility model discloses a folding, flipping, quick-locking climbing ladder, including a fixed ladder, a rotating ladder, a rotating mechanism, and a locking mechanism. The rotating ladder is connected to the rotating mechanism, and the rotating ladder is equipped with a quick-locking mechanism that cooperates with the fixed ladder. The locking mechanism is installed on the wall, and when the rotating ladder is rotated to a predetermined position close to the wall, it can be locked by the locking mechanism. The bottom of the rotating ladder is equipped with telescopic support legs. In this solution, the side wall is installed with a folding and flipping structure, which realizes the function of unfolding when in use and folding when stored, meeting the needs of installation and use in narrow spaces and not affecting the maintenance passage. At the same time, this solution adopts a touch hook quick-locking mechanism, which realizes the function of quick-locking connection of the high and inaccessible position before the user climbs to the top, ensuring that the climbing ladder can be climbed.

Description

Technical Field

[0001] This utility model relates to the field of fixed high-altitude maintenance operations, and in particular to a folding, flipping, quick-locking ladder for reaching the top. Background Technology

[0002] Currently, most climbing ladders on the market are portable A-frame folding ladders, multi-section telescopic ladders, or inverted folding ladders. These existing climbing ladders have the following problems:

[0003] 1. When not in use, they all require separate storage and management, making it difficult to store them permanently at the point of use and causing management difficulties;

[0004] 2. During use, it is impossible to form a firm connection with the fixed ladder above, which cannot guarantee the safety of the workers during operation, especially in places with narrow working spaces and difficult operations, where it is necessary to ensure that the connection is absolutely firm;

[0005] In use, existing ladder solutions all involve ground contact for deployment and fixation, without any restrictions on the footing, which poses a risk of movement or tipping over during use. Utility Model Content

[0006] The purpose of this utility model is to provide a folding, flipping, quick-locking ladder to address the above-mentioned shortcomings, thereby solving the problem that existing ladders cannot be permanently stored and managed at the site, and also solving the problem that existing ladders cannot form a firm connection with the fixed ladder above, thus failing to guarantee the safety of workers during operation.

[0007] This utility model is achieved through the following solution:

[0008] A folding, flipping, quick-locking ladder includes a fixed ladder, a rotating ladder, a rotating mechanism, and a locking mechanism; the rotating ladder is connected to the rotating mechanism, and the rotating ladder is provided with a quick-locking mechanism that cooperates with the fixed ladder; the locking mechanism is installed on the wall, and when the rotating ladder is rotated to a predetermined position close to the wall, it can be locked by the locking mechanism, and the bottom of the rotating ladder is provided with telescopic support legs.

[0009] Based on the above-mentioned folding, flipping, quick-locking climbing ladder, a stop structure is provided at the connection between the bottom of the fixed ladder and the rotating ladder; the stop structure is set with an opening direction according to the rotation direction of the rotating ladder on site, so that the opening direction of the stop structure matches the rotation direction of the rotating ladder.

[0010] Based on the above-mentioned folding and flipping quick-lock climbing ladder, the stop structure has a first pin hole at the contact part with the rotating ladder, the rotating ladder has a second pin hole, the stop structure is U-shaped, the first pin hole is respectively located at the upper and lower ends of the stop structure, and the first pin hole penetrates through the stop structure.

[0011] Based on the above-mentioned folding and flipping quick-lock climbing ladder, the rotating ladder includes a ladder frame, a quick-lock execution part, and a quick-lock trigger part; the quick-lock execution part is located at the top of the ladder frame, and the quick-lock trigger part is located on the ladder frame near the middle; the quick-lock trigger part and the quick-lock execution part are connected as one unit by a connecting rope.

[0012] Based on the aforementioned folding and flipping quick-lock climbing ladder, the quick-lock actuator includes a quick-lock body, a quick-lock latch, and a return spring; the end of the quick-lock body has a hook-shaped structure, and a connecting lug for the quick-lock latch is provided on the quick-lock body, the quick-lock latch being hinged to the connecting lug; a spring hole is provided on the quick-lock latch, one end of the return spring is connected to the spring hole, and the other end is connected to the end of the quick-lock body, a control hole is provided on the end of the quick-lock latch near the connecting lug; the quick-lock actuator is connected to the control hole via a connecting rope.

[0013] Based on the above-mentioned folding and flipping quick-lock climbing ladder, the top of the rotating ladder is provided with an installation plate, the quick-lock body is connected to the installation plate, the top of the rotating ladder is provided with a first through hole, and the position of the rotating ladder near the quick-lock trigger part is provided with a second through hole. The connecting rope passes through the first through hole and the second through hole and is embedded in the rotating rod.

[0014] Based on the above-mentioned folding and flipping quick-lock climbing ladder, the quick-lock triggering part includes a fixed seat, a hinge seat, a fixed hook, and a connecting ring; the fixed seat and the fixed hook are both connected to the rotating ladder, the hinge seat is hinged to the fixed seat, the fixed hook is set at a predetermined distance from the fixed seat, the connecting ring is set on the hinge seat, and the connecting rope is connected to the connecting ring.

[0015] Based on the above-mentioned folding and flipping quick-lock climbing ladder, the locking mechanism includes a locking base and a locking hinge ear; the locking base is connected to the wall; the locking hinge ear is disposed on the locking base, and the locking hinge ear includes a movable end and a fixed end; the movable end can rotate relative to the fixed end and can be locked by bolts.

[0016] Based on the above-mentioned folding, flipping, quick-locking climbing ladder, the rotating mechanism includes a rotating base, a rotating rod, a rotating support, and a connecting rod; the rotating support is disposed on the rotating base, the rotating rod is provided with rotating bearings at both ends, the rotating rod is movably connected to the rotating support through the rotating bearings, and the connecting rod is connected to the ladder frame and the rotating rod respectively.

[0017] Based on the above-mentioned folding, flipping, quick-locking ladder, the telescopic support leg is threadedly engaged with the bottom of the ladder frame to achieve the lifting function. The telescopic support leg specifically includes a threaded rod, a support base, a first locking nut, and a second locking nut. The bottom of the ladder frame is provided with a threaded groove that engages with the threaded rod. The threaded rod is disposed in the threaded groove, the support base is disposed at the bottom of the threaded rod, and the first locking nut and the second locking nut are sleeved on the threaded rod.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] 1. The side wall of this solution is equipped with a folding and flipping structure, which can be unfolded when in use and folded when stored, so as to meet the needs of installation and use in narrow spaces and not affect the maintenance passage.

[0020] 2. This solution uses a touch hook quick-lock mechanism to enable users to quickly lock and connect the ladder to inaccessible high positions before climbing, ensuring the ladder can be climbed.

[0021] 3. In this solution, the lower support leg of the climbing ladder adopts a rotating foot support mechanism to eliminate the phenomenon of the lower support of the climbing ladder being suspended due to unevenness of the wall and ground in the installation environment, realize the function of bidirectional size adjustment, and improve the structural stability of the climbing ladder.

[0022] 4. This solution adopts a bidirectional stop structure with adjustable installation direction, which is used to achieve a quick-lock connection between the rotating ladder part and the fixed ladder part. The structural stop positioning can adapt to the installation of the climbing ladder in the left or right direction on site.

[0023] 5. In this solution, the moving ladder and the fixed ladder are interconnected by a locking mechanism and a quick-release pin, which realizes the structural connection between the reversible moving ladder part and the fixed ladder part, thereby enhancing the safety and reliability of the ladder to the top. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0025] Figure 2 This is a schematic diagram of the quick-lock actuator in this utility model;

[0026] Figure 3 This is a schematic diagram of the locking mechanism in this utility model;

[0027] Figure 4 This is a schematic diagram of the telescopic outrigger in this utility model;

[0028] Figure 5 This is a schematic diagram of the quick-lock trigger part in this utility model;

[0029] Reference numerals: 1. Fixed ladder; 2. Rotating ladder; 3. Rotating mechanism; 4. Locking mechanism; 5. Telescopic support leg; 6. Connecting rope; 11. Stop structure; 12. First pin hole; 13. Second pin hole; 21. Ladder frame; 22. Quick lock actuator; 23. Quick lock trigger; 24. Mounting plate; 25. First through hole; 26. Second through hole; 221. Quick lock body; 222. Quick lock tongue; 223. Return spring; 224. Spring hole; 225. Control hole; 231. Fixed seat; 232. Hinge seat; 233. Fixed hook; 234. Connecting ring; 31. Rotating base; 32. Rotating rod; 33. Rotating support; 34. Connecting rod; 41. Locking base; 42. Locking hinge ear; 51. Threaded rod; 52. Support base; 53. First locking nut; 54. Second locking nut. Detailed Implementation

[0030] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0031] Any feature disclosed in this specification (including any appended claims and abstract) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a predetermined orientation, or be constructed and operated in a predetermined orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0034] Example 1

[0035] like Figures 1-5 As shown, this utility model provides a technical solution:

[0036] A folding, flipping, quick-lock climbing ladder includes a fixed ladder 1, a rotating ladder 2, a rotating mechanism 3, and a locking mechanism 4. The rotating ladder 2 is connected to the rotating mechanism 3, and a quick-locking mechanism that cooperates with the fixed ladder 1 is provided on the rotating ladder 2. The locking mechanism 4 is provided on the wall, and when the rotating ladder 2 is rotated to a predetermined position close to the wall, it can be locked by the locking mechanism 4. Telescopic support legs 5 are provided at the bottom of the rotating ladder 2.

[0037] Based on the above structure, in this solution, the fixed ladder 1 is connected and fixed to the external mechanism. When it is necessary to connect the fixed ladder 1 to the rotating ladder 2, the rotating ladder 2 is released from the locking mechanism 4 and rotated to the lower position of the fixed ladder 1. It is then initially locked to the bottom position of the fixed ladder 1 by a quick-locking mechanism, and then the bottom of the rotating ladder 2 is fixed to the ground by the telescopic support legs 5, further increasing the stability of the rotating ladder 2. When the rotating ladder 2 is not in use, it is unlocked from the fixed ladder 1 and rotated to the wall locking mechanism 4 for storage and fixation. This solves the problem of reliable storage of the climbing ladder at the usage site and improves storage efficiency. At the same time, the folding and flipping mechanism solves the problem of quick storage and unfolding of the climbing ladder, ensuring that the maintenance passage at the usage site is not blocked. This solution achieves complete fixation of the climbing ladder through the cooperation of multiple mechanisms, improving the safety and reliability of users climbing to heights.

[0038] As an example, a stop structure 11 can be provided at the connection between the bottom of the fixed ladder 1 and the rotating ladder 2; the stop structure 11 is set with an opening direction according to the rotation direction of the rotating ladder 2 on site, so that the opening direction of the stop structure 11 matches the rotation direction of the rotating ladder 2.

[0039] A first pin hole 12 is provided on the contact part between the stop structure 11 and the rotating ladder 2, and a second pin hole 13 is provided on the rotating ladder 2.

[0040] Based on the above structure, by setting the stop structure 11, the rotating ladder 2 can be guided and limited, so that the rotating ladder 2 can quickly rotate to the predetermined position, reducing the difficulty of subsequent operations. At the same time, when the rotating ladder 2 is in the stop structure 11, the positions of the first pin hole 12 and the second pin hole 13 are aligned, which facilitates the subsequent locking operation.

[0041] As an example, the stop structure 11 is U-shaped, and the first pin hole 12 is respectively provided at the upper and lower ends of the stop structure 11, and the first pin hole 12 is provided through the stop structure 11.

[0042] Based on the above structure, by setting the stop structure 11 as a U-shaped structure, the rotating ladder 2 can be rotated into the stop structure 11 more smoothly, and the side wall of the U-shaped structure can fit more closely with the arc-shaped side wall of the rotating ladder 2, making the overall connection more stable.

[0043] As an example, the rotating ladder 2 may include a ladder frame 21, a quick-lock actuator 22, and a quick-lock trigger 23; the quick-lock actuator 22 is located at the top of the ladder frame 21, and the quick-lock trigger 23 is located on the ladder frame 21 near the middle; the quick-lock trigger 23 and the quick-lock actuator 22 are connected as one unit by a connecting rope 6.

[0044] Based on the above structure, the quick-lock trigger 23 is set at the middle position of the ladder frame 21, so that the operator can complete the initial locking operation of the rotating ladder 2 and the fixed ladder 1 at the bottom of the ladder frame 21. That is, the quick-lock trigger 23 drives the quick-lock execution 22 to lock the fixed ladder 1 that is stuck in it; thus reducing the difficulty of later maintenance.

[0045] As an example, the quick-lock actuator 22 may include a quick-lock body 221, a quick-lock tongue 222, and a return spring 223; the end of the quick-lock body 221 is hook-shaped, and a connecting lug for the quick-lock tongue 222 is provided on the quick-lock body 221, and the quick-lock tongue is hinged to the connecting lug; a spring hole 224 is provided on the quick-lock tongue, one end of the return spring 223 is connected to the spring hole 224, and the other end is connected to the end position of the quick-lock body 221, and a control hole 225 is provided on the end of the quick-lock tongue near the connecting lug; the quick-lock actuator 22 is connected to the control hole 225 through a connecting rope 6.

[0046] Based on the above structure, since the quick-lock tongue 222 is hinged to the quick-lock body 221, when it is necessary to lock the fixed ladder 1, the quick-lock trigger part 23 is pulled to make the quick-lock tongue 222 rotate and form a locking cavity for the upper rod of the fixed ladder 1 with the end of the hook-shaped quick-lock body 221; thus, the rotating ladder 2 and the fixed ladder 1 are initially locked. When it is necessary to unlock, the quick-lock trigger part 23 is unlocked, and the return spring 223 drives the quick-lock tongue 222 to return to its original position.

[0047] As an example, the top of the rotating ladder 2 is provided with a mounting plate 24, the quick lock body 221 is connected to the mounting plate 24, a first through hole 25 is provided at the top of the rotating ladder 2, and a second through hole 26 is provided on the rotating ladder 2 near the quick lock trigger part 23. The connecting rope 6 passes through the first through hole 25 and the second through hole 26 and is embedded inside the rotating rod 32.

[0048] Based on the above structure, embedding the connecting rope 6 inside the rotating rod 32 can prevent the connecting rope 6 from interfering with the worker's crawling; at the same time, it can also protect the connecting rope 6 and extend its service life.

[0049] As an example, the quick-lock trigger 23 is a quick clamp; the quick-lock trigger 23 may include a fixed seat 231, a hinge seat 232, a fixed hook 233 and a connecting ring 234; the fixed seat 231 and the fixed hook 233 are both connected to the rotating ladder 2, the hinge seat 232 is hinged to the fixed seat 231, the fixed hook 233 is set at a predetermined distance from the fixed seat 231, the connecting ring 234 is set on the hinge seat 232, and the connecting rope 6 is connected to the connecting ring 234.

[0050] Based on the above structure, the quick clamp in this solution is existing technology. This solution does not improve upon it, but merely uses existing technology in a conventional manner. The position of the connecting ring 234 can be changed through the hinge seat 232. When fixation is required, the connecting ring 234 is inserted into the fixing hook 233 to achieve fixation. When the connecting ring 234 moves, it can drive the connecting rope 6 to move, thereby realizing the release and locking of the quick lock tongue 222.

[0051] As an example, the locking mechanism 4 may include a locking base 41 and a locking hinge ear 42; the locking base 41 is connected to the wall; the locking hinge ear 42 is disposed on the locking base 41, and the locking hinge ear 42 includes a movable end and a fixed end; the movable end is rotatable relative to the fixed end and can be locked by bolts.

[0052] Based on the above structure, the movable ladder that has been rotated to the wall side can be fixed by the locking mechanism 4, without occupying the space of the entire maintenance passage, thus improving the utilization rate of the passage.

[0053] As an example, the rotating mechanism 3 may include a rotating base 31, a rotating rod 32, a rotating support 33, and a connecting rod 34; the rotating support 33 is disposed on the rotating base 31, the rotating rod 32 is provided with rotating bearings at both ends, the rotating rod 32 is movably connected to the rotating support 33 through the rotating bearings, and the connecting rod 34 is connected to the ladder frame 21 and the rotating rod 32 respectively.

[0054] Based on the above structure, the rotating rod 32 can rotate freely on the rotating base 31 through the cooperation of the rotating support 33 and the rotating shaft bearing, and the rotating base 31 provides support for the rotation of the movable ladder.

[0055] As an example, the telescopic outrigger 5 is threadedly engaged with the bottom of the ladder frame 21 to achieve the lifting function. Specifically, the telescopic outrigger 5 may include a threaded rod 51, a support base 52, a first locking nut 53 and a second locking nut 54. The bottom of the ladder frame 21 is provided with a threaded groove that engages with the threaded rod 51. The threaded rod 51 is disposed in the threaded groove, the support base 52 is disposed at the bottom of the threaded rod 51, and the first locking nut 53 and the second locking nut 54 are sleeved on the threaded rod 51.

[0056] Based on the above structure, by setting a threaded base, the contact area between the telescopic outrigger 5 and the ground can be increased, making the support more stable. The threaded rod 51 is raised and lowered by rotation, and locked by the mutual abutment of the first locking nut 53 and the second locking nut 54.

[0057] How to use this solution:

[0058] In use, operate the locking mechanism 4 to quickly release the fixation. Rotate the movable ladder by rotating the base and rotating the rod 32 until it contacts the fixed ladder 1 and reaches the set position. By operating the quick lock trigger 23, control the quick lock actuator 22 to connect the movable ladder to the upper fixed ladder 1. Then, use a wrench to rotate the telescopic support leg 5 so that the telescopic support leg 5 is completely in contact with the ground and the movable ladder is completely fixed. The operator climbs onto the movable ladder and inserts the quick release pin into the pin hole to further move the ladder.

[0059] When storing, first remove the quick release pin, rotate to loosen the telescopic support leg 5, operate the quick lock trigger 23 to open the quick lock actuator 22, disconnect it from the upper fixed ladder 1, rotate the movable ladder until it fits against the locking mechanism 4, and operate the wall locking mechanism 4 to lock the movable ladder.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 folding, flip-lock, roof-top ladder, comprising: It includes a fixed ladder (1), a rotating ladder (2), a rotating mechanism (3), and a locking mechanism (4); the rotating ladder (2) is connected to the rotating mechanism (3), and the rotating ladder (2) is provided with a quick-locking mechanism that cooperates with the fixed ladder (1); the locking mechanism (4) is set on the wall, and when the rotating ladder (2) is rotated to a predetermined position close to the wall, it can be locked by the locking mechanism (4); the bottom of the rotating ladder (2) is provided with telescopic support legs (5).

2. The folding, flip-lock, roof-top ladder of claim 1 wherein: A stop structure (11) is provided at the connection between the bottom of the fixed ladder (1) and the rotating ladder (2); the stop structure (11) is set with an opening direction according to the rotation direction of the rotating ladder (2) on site, so that the opening direction of the stop structure (11) matches the rotation direction of the rotating ladder (2).

3. The folding, flip-lock, roof-top ladder of claim 2 wherein: The stop structure (11) has a first pin hole (12) at the contact part with the rotating ladder (2), and the rotating ladder (2) has a second pin hole (13). The stop structure (11) is U-shaped in general. The first pin hole (12) is respectively located at the upper and lower ends of the stop structure (11) and is disposed through the stop structure (11).

4. The folding, flip-lock, roof-top ladder according to claim 3, wherein: The rotating ladder (2) includes a ladder frame (21), a quick-lock actuator (22), and a quick-lock trigger (23); the quick-lock actuator (22) is located at the top of the ladder frame (21), and the quick-lock trigger (23) is located on the ladder frame (21) near the middle; the quick-lock trigger (23) and the quick-lock actuator (22) are connected as one unit by a connecting rope (6).

5. The folding, flip-lock, roof-top ladder according to claim 4, wherein: The quick-lock actuator (22) includes a quick-lock body (221), a quick-lock tongue (222), and a return spring (223). The end of the quick-lock body (221) is hook-shaped, and a connecting lug for the quick-lock tongue (222) is provided on the quick-lock body (221). The quick-lock tongue is hinged to the connecting lug. A spring hole (224) is provided on the quick-lock tongue. One end of the return spring (223) is connected to the spring hole (224), and the other end is connected to the end of the quick-lock body (221). A control hole (225) is provided on the end of the quick-lock tongue near the connecting lug. The quick-lock actuator (22) is connected to the control hole (225) via a connecting rope (6).

6. The folding, flip-lock, roof-top ladder according to claim 5, wherein: The top of the rotating ladder (2) is provided with an installation plate (24), the quick lock body (221) is connected to the installation plate (24), the top of the rotating ladder (2) is provided with a first through hole (25), the top of the rotating ladder (2) is provided with a second through hole (26) near the quick lock trigger part (23), and the connecting rope (6) passes through the first through hole (25) and the second through hole (26) and is embedded inside the rotating rod (32).

7. The folding, flip-lock, roof-top ladder according to claim 6, wherein: The quick-lock trigger part (23) includes a fixed seat (231), a hinge seat (232), a fixed hook (233), and a connecting ring (234); the fixed seat (231) and the fixed hook (233) are both connected to the rotating ladder (2), the hinge seat (232) is hinged to the fixed seat (231), the fixed hook (233) is set at a predetermined distance from the fixed seat (231), the connecting ring (234) is set on the hinge seat (232), and the connecting rope (6) is connected to the connecting ring (234).

8. The folding, flip-lock, roof-top ladder according to claim 7, wherein: The locking mechanism (4) includes a locking base (41) and a locking hinge (42); the locking base (41) is connected to the wall; the locking hinge (42) is disposed on the locking base (41), and the locking hinge (42) includes a movable end and a fixed end; the movable end can rotate relative to the fixed end and can be locked by bolts.

9. The folding, flip-lock, roof-top ladder according to claim 8, wherein: The rotating mechanism (3) includes a rotating base (31), a rotating rod (32), a rotating support (33), and a connecting rod (34); the rotating support (33) is mounted on the rotating base (31), the rotating rod (32) is provided with rotating bearings at both ends, the rotating rod (32) is movably connected to the rotating support (33) through the rotating bearings, and the connecting rod (34) is connected to the ladder frame (21) and the rotating rod (32) respectively.

10. A folding, flipping, quick-locking ladder for reaching the top, as described in any one of claims 1 to 9, characterized in that: The telescopic outrigger (5) engages with the bottom thread of the ladder frame (21) to achieve the lifting function. The telescopic outrigger (5) specifically includes a threaded rod (51), a support base (52), a first locking nut (53), and a second locking nut (54). The bottom of the ladder frame (21) is provided with a threaded groove that engages with the threaded rod (51). The threaded rod (51) is located in the threaded groove, and the support base (52) is located at the bottom of the threaded rod (51). The first locking nut (53) and the second locking nut (54) are sleeved on the threaded rod (51).

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