Storable ladder stand
By designing a receptacle ladder and using a rotating shaft connected to the pedal stick and U-shaped handrail structure, the problem of existing ladder occupying a large space is solved, the ladder is conveniently unfolded and compactly folded, and the utilization efficiency of shaft space is improved.
Patent Information
- Application Number
- CN202421241972.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The existing ladders occupy a large space in the pit area, resulting in a compact layout of the shaft space and difficult to efficiently utilize.
A storage ladder is designed, with a rotating shaft connecting the pedal and U-shaped handrail structure. The ladder can be folded by itself under the action of gravity. It is fixed by a storage bracket and a snap mechanism during storage, and takes up little space.
It realizes the convenient expansion of the ladder during use and the compact folding of storage. While meeting safety standards, it significantly reduces the space occupied in the pit area and improves the efficiency of the utilization of the shaft space.
Smart Images
Figure CN222501603U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of ladders, and in particular relates to a retractable ladder. Background Art
[0002] According to the requirements of the new national standard GB / T7588.1, the elevator pit must have a ladder that meets the standards.
[0003] There are many styles of ladders on the market, but they all have a common problem: they need to occupy a considerable space in the pit area. This problem poses a severe challenge to the already very compact shaft space layout, especially in modern buildings that need to efficiently utilize every inch of space. Therefore, how to optimize the design of ladders and reduce the space they occupy in the pit while ensuring safety has become a technical problem that needs to be urgently solved. Utility Model Content
[0004] The purpose of the utility model is to propose a retractable ladder in order to solve the problem that there are various types of ladders currently on the market, but all of them have a common problem that they need to occupy a large space in the pit, which brings serious challenges to the current compact shaft space layout.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a retractable ladder, comprising a handrail and a plurality of treads, a plurality of treads are provided with rotating shafts at both ends, the rotating shafts extend to both sides and are rotatably connected to the handrails, a storage fixing rod and a switch touch plate fixing bracket are provided on the handrails, a storage bracket and a pit support are provided in the shaft, the switch touch plate fixing bracket and the storage fixing rod are clamped on the storage bracket, a ladder foot plug plate is provided at the bottom of the handrail, and the ladder foot plug plate is plugged into the pit support.
[0006] As a further description of the above technical solution:
[0007] A limit bracket is arranged on the hoistway, and the limit bracket is located at one side of the bottom pit support, and the ladder foot plug plate is plugged into the limit bracket when the ladder is in an open state.
[0008] As a further description of the above technical solution:
[0009] The storage bracket is provided with a buckle and a slot, the switch touch panel fixing bracket is clamped in the buckle, and the storage fixing rod is clamped in the slot.
[0010] As a further description of the above technical solution:
[0011] The storage fixing rod and the switch touch plate fixing bracket are connected to the handrail at one end of the step stick, and an end anti-slip cover is arranged on the handrail at the other end of the step stick.
[0012] As a further description of the above technical solution:
[0013] The two ends of the pedal are in the shape of inclined parallelograms, and the parallelograms at the two ends of the pedal are parallel to each other.
[0014] As a further description of the above technical solution:
[0015] One end of the anti-overturning bracket is rotatably connected to the handrail at one end of the step rod, and a fixing rod is arranged on the handrail at the other end of the step rod, and the other end of the anti-overturning bracket is hung on the fixing rod.
[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0017] In the utility model, the ladder is composed of two major parts, a step rod and a handrail. The step rod of the ladder is an overall rectangular cross section, and two ends are cut in parallel to form a parallelogram structure. The handrail is a U-shaped cross section. The step rod can have a rotating shaft at both ends, so that the step rod of the ladder can be rotated around the rotating shaft, and the rotating shaft is inserted into the handrail. When the ladder is in use, it is only necessary to uncover the anti-overturning bracket from the fixing rod, take out the handrail on one side of the ladder, and the ladder is unfolded to a certain position under the action of gravity, and the ladder foot plug plate is inserted into the limiting bracket, so that it can be conveniently used; when storing, the ladder is pulled out of the limiting bracket and the handrail of the ladder is lifted, and the ladder is folded by itself under the action of gravity; after folding, the anti-overturning bracket is inserted into the fixing rod on the handrail so that it will not tip over, and then the bottom of the ladder is placed on the pit support, and the storage fixing rod of the ladder is pushed into the buckle of the storage bracket on the wall, so that the storage of the ladder can be completed. This structure has high flexibility and is easy to fold. While meeting the standard requirements, it brings great convenience to the arrangement of the well space. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 The present invention is a diagram showing the storage state of a retractable ladder.
[0020] Figure 2 for Figure 1 Enlarged view of center C.
[0021] Figure 3 The present invention is a diagram showing the open state of a retractable ladder.
[0022] Figure 4 for Figure 3 Enlarged view of point B in the middle.
[0023] Figure 5 The present invention is a structural schematic diagram of a retractable ladder.
[0024] Figure 6 for Figure 5 Enlarged view of point A in the middle.
[0025] Figure 7 The utility model is a three-dimensional diagram of the rungs in a retractable ladder.
[0026] Figure 8 The present invention is a three-dimensional diagram of a retractable ladder.
[0027] Fig. 9 The present invention is a schematic diagram of the structure of a storage bracket in a retractable ladder.
[0028] Fig.10 The present invention is a diagram showing a foldable ladder in a folded state.
[0029] Legend:
[0030] 1-handrail; 2-treadle; 3-rotating axis; 4-storage fixing rod; 5-switch touch panel fixing bracket; 6-well; 7-storage bracket; 8-pit support; 9-ladder foot plug plate; 10-limiting bracket; 11-buckle; 12-slot; 13-end anti-slip cover; 14-anti-overturning bracket; 15-fixing rod. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0035] In the description of the embodiments of the present utility model, it should be noted that the terms "upper", "inner", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.
[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0037] See also Figure 1-10 The utility model provides a technical solution: a retractable ladder, comprising a handrail 1 and a plurality of treads 2, a plurality of treads 2 are provided with rotating shafts 3 at both ends, the rotating shafts 3 extend to both sides and are rotatably connected to the handrail 1, a storage fixing rod 4 and a switch touch plate fixing bracket 5 are provided on the handrail 1, a storage bracket 7 and a pit support 8 are provided in a shaft 6, the switch touch plate fixing bracket 5 and the storage fixing rod 4 are clamped on the storage bracket 7, a ladder foot plug plate 9 is provided at the bottom of the handrail 1, and the ladder foot plug plate 9 is plugged into the pit support 8.
[0038] A limiting bracket 10 is provided on the hoistway 6 , and the limiting bracket 10 is located at one side of the pit support 8 , and the ladder foot plug plate 9 is plugged into the limiting bracket 10 when the ladder is in the open state.
[0039] The storage bracket 7 is provided with a buckle 11 and a slot 12, the switch touch panel fixing bracket 5 is clamped in the buckle 11, and the storage fixing rod 4 is clamped in the slot 12. This ensures good stability during storage.
[0040] The storage fixing rod 4 and the switch touch panel fixing bracket 5 are connected to the handrail 1 at one end of the step 2, and an end anti-slip cover 13 is provided on the handrail 1 at the other end of the step 2.
[0041] The two ends of the step bar 2 are in the shape of inclined parallelograms, and the parallelograms at the two ends of the step bar 2 are parallel to each other, so as to avoid interference with the handrail during rotation.
[0042] One end of the anti-overturning bracket 14 is rotatably connected to the handrail 1 at one end of the step 2, and a fixing rod 15 is provided on the handrail 1 at the other end of the step 2, and the other end of the anti-overturning bracket 14 is hung on the fixing rod 15. This prevents the ladder from tipping over and automatically opening when placed, which not only occupies the hoistway space, but also easily damages other components in the hoistway.
[0043] Working principle: The ladder is composed of two major parts: a step and a handrail. The step of the ladder is rectangular in overall cross section, and the two ends are cut in parallel to form a parallelogram structure. The handrail is U-shaped in cross section. The step can have a rotating shaft at both ends, so that the step of the ladder can be rotated around the rotating shaft, and the rotating shaft is inserted into the handrail. When the ladder is in use, it is only necessary to peel off the anti-overturning bracket from the fixed rod, take out the handrail on one side of the ladder, and the ladder is unfolded to a certain position under the action of gravity, and the ladder foot plug plate is inserted into the limit bracket, and it can be conveniently used; when storing, the ladder is pulled out of the limit bracket and the handrail of the ladder is lifted, and the ladder folds itself under the action of gravity; after folding, the anti-overturning bracket is inserted into the fixed rod on the handrail to prevent it from tipping over, and then the bottom of the ladder is placed on the pit support, and the storage fixing rod of the ladder is pushed into the buckle of the storage bracket on the wall, and the storage of the ladder can be completed. This structure is highly flexible and easy to fold. While meeting the standard requirements, it brings great convenience to the layout of the well space.
[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A retractable ladder, characterized in that: It includes an armrest and several footrests, both ends of the several footrests are provided with rotating shafts, the rotating shafts extend to both sides and are rotatably connected to the armrests, the armrests are provided with storage fixing rods and switch touch plate fixing brackets, the well is provided with storage brackets and pit supports, the switch touch plate fixing brackets and the storage fixing rods are clamped on the storage brackets, and a ladder foot plug plate is provided at the bottom of the armrests, and the ladder foot plug plate is plugged into the pit support.
2. A retractable ladder according to claim 1, characterized in that: A limit bracket is arranged on the hoistway, and the limit bracket is located at one side of the bottom pit support, and the ladder foot plug plate is plugged into the limit bracket when the ladder is in an open state.
3. A retractable ladder according to claim 2, characterized in that: The storage bracket is provided with a buckle and a slot, the switch touch panel fixing bracket is clamped in the buckle, and the storage fixing rod is clamped in the slot.
4. The retractable ladder according to claim 1, characterized in that: The storage fixing rod and the switch touch plate fixing bracket are connected to the handrail at one end of the step stick, and an end anti-slip cover is arranged on the handrail at the other end of the step stick.
5. The retractable ladder according to claim 4, characterized in that: The two ends of the pedal are in the shape of inclined parallelograms, and the parallelograms at the two ends of the pedal are parallel to each other.
6. The retractable ladder according to claim 1, characterized in that: One end of the anti-overturning bracket is rotatably connected to the handrail at one end of the step rod, and a fixing rod is arranged on the handrail at the other end of the step rod, and the other end of the anti-overturning bracket is hung on the fixing rod.