Movable ladder for tobacco curing barn
By designing a movable ladder frame, using a grooved plate, anti-slip pads, and push-pull handles, the problems of inconvenient movement and poor anti-slip effect of existing ladder frames are solved, achieving convenient movement and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHANG BRANCH LONGYAN TOBACCO CO
- Filing Date
- 2025-04-29
- Publication Date
- 2026-07-31
AI Technical Summary
The existing ladders in tobacco curing barns are inconvenient to move and have poor anti-slip properties, making them prone to slipping and falling, posing a safety hazard, especially when used on rainy days.
A movable ladder rack was designed, which uses inclined grooved plates and anti-slip pads, and is equipped with retractable push-pull handles and anti-slip layers. Combined with braked casters, it can be moved easily and the safety can be improved.
It enables convenient movement of the ladder rack and improves safety during use. It can be operated by a single person, has a significant anti-slip effect, and ensures stability and safety during use.
Smart Images
Figure CN224579301U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a movable ladder frame for a tobacco curing barn. Background Technology
[0002] After fresh tobacco leaves are picked, they need to be cured before they can be processed into tobacco shreds suitable for cigarette production. The picked tobacco leaves need to be placed in a curing barn for curing. During this process, ladders are used to place the tobacco leaves onto high shelves inside the barn, or workers can climb the ladders to remove the cured tobacco leaves. However, the ladders used in curing barns are generally made of metal, requiring two people to lift them, making them inconvenient to move. Furthermore, for freshly picked tobacco leaves, especially those picked on rainy days, the moisture can easily drip onto the ladders when workers are placing the leaves onto the shelves. The existing ladders have poor anti-slip properties, making it easy for workers to slip and fall. Utility Model Content
[0003] The purpose of this utility model is to provide a movable ladder frame for tobacco curing barns. The ladder frame is easy to move, and the push-pull handle is movably connected to the side of the ladder frame for easy storage.
[0004] The technical solution of this utility model is as follows: a movable ladder frame for a tobacco curing barn, including a frame body, a ladder frame inclinedly arranged on one side of the frame body, steps spaced apart along the height direction inside the ladder frame, anti-slip pads fixed at the lower end of the ladder frame, retractable push-pull handles installed on both sides of the ladder frame, a standing platform provided at the top of the frame body, and an anti-slip layer provided on the upper surface of the standing platform and the steps, and a pair of casters provided at the lower end of the side of the frame body away from the ladder frame.
[0005] Furthermore, the ladder frame is composed of two inclined grooved plates with outward slots, and the tread is a metal plate with both ends welded to the inner side of the grooved plates.
[0006] Furthermore, the anti-slip pad is made of wear-resistant rubber and is fixed to the lower end of the grooved plate.
[0007] Furthermore, a rotating shaft passing through the grooved plate from the outside to the inside is fixed to the lower end of the push-pull handle. A limit block is fixed to the end of the rotating shaft passing through the grooved plate. A spring for retracting the push-pull handle into the groove of the grooved plate is sleeved on the rotating shaft between the limit block and the inner side of the grooved plate.
[0008] Furthermore, a shaft hole is provided on the lower side of the first or second pedal from bottom to top on the grooved plate, and the rotating shaft passes through the shaft hole and connects to the grooved plate.
[0009] Furthermore, a slot consisting of a pair of limiting plates is provided in the slot of the groove plate and on the upper side of the rotating shaft. A positioning plate is fixed on the rotating shaft for inserting the push-pull handle into the slot after it is pulled outward, so that the push-pull handle is in a vertical position.
[0010] Furthermore, the frame is made of rectangular tubing, and reinforcing rods are installed inside the frame.
[0011] Furthermore, the anti-slip layer is an anti-slip pad fixed to the upper surface of the standing platform and the pedal.
[0012] Compared with the prior art, the present invention has the following advantages:
[0013] 1. The ladder frame has a simple structure and is easy to move; a single person can move the ladder frame. The push-pull handle is movably connected to the side of the ladder frame, so that it can be stored in the slot of the grooved plate when not in use, without affecting the normal access of personnel to the ladder frame for tobacco leaves.
[0014] 2. Fixing anti-slip pads at the bottom of the ladder frame, along with casters with brakes, helps ensure safety and stability when parked.
[0015] 3. Fixing anti-slip mats to the upper surface of the pedals and the standing platform helps improve personnel safety. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a cross-sectional view of the present invention;
[0018] Figure 3 This is a schematic diagram of the push-pull handle and the grooved plate of this utility model.
[0019] Figure 4 This is a schematic diagram of the push-pull handle of this utility model after it is pulled out and engages with the grooved plate.
[0020] Figure 5 For the present utility model Figure 1 Enlarged view of area A;
[0021] Figure 6 This is a diagram showing the sliding handle of this utility model after it has been pulled out and its fit with the ladder frame.
[0022] In the diagram: 10-Frame, 11-Cast, 12-Reinforcing bar, 20-Ladder frame, 20a-Groove plate, 21-Anti-slip pad, 22-Shaft hole, 23-Limiting plate, 24-Slot, 30-Pedal, 31-Anti-slip layer, 40-Push-pull handle, 41-Rotating shaft, 42-Limiting block, 43-Spring, 44-Positioning plate, 50-Standing platform, 51-Anti-slip layer. Detailed Implementation
[0023] To make the above-mentioned features and advantages of this utility model more easily understood, specific embodiments are described below in conjunction with the accompanying drawings, but this utility model is not limited thereto.
[0024] refer to Figures 1 to 6
[0025] A movable ladder frame for a tobacco curing barn includes a frame body 10. A ladder frame 20 is inclinedly arranged on one side of the frame body. Steps 30 are spaced apart along the height direction inside the ladder frame. Anti-slip pads 21 are fixed to the lower end of the ladder frame. Retractable push-pull handles 40 are installed on both sides of the ladder frame so that the push-pull handles can be stored on the side of the ladder frame when not in use, without affecting the use of the ladder frame. A standing platform 50 is provided on the top of the frame body. Anti-slip layers 51 and 31 are respectively provided on the upper surface of the standing platform and the step plates. A pair of casters 11 are provided on the lower end of the side of the frame away from the ladder frame, and the seat shells of the casters are fixed to the frame body. When it is necessary to move, the push-pull handle is pulled out, and the ladder frame side of the ladder frame is lifted by pushing the push-pull handle. The ladder frame is then moved by pushing the casters. After moving into place, the push-pull handle is stored on the side of the ladder frame.
[0026] In this embodiment, the ladder frame is composed of two inclined channel plates 20a with outward-facing slots. The channel plates are made of metal sheets (stainless steel plates) with a thickness of 2-4 mm. The steps are metal plates with both ends welded to the inner surfaces of the channel plates to form a ladder.
[0027] In this embodiment, in order to improve the anti-slip effect and ensure service life, the anti-slip pad is made of wear-resistant rubber and fixed to the lower end of the groove plate.
[0028] In this embodiment, a rotating shaft 41 is fixed to the lower end of the push-pull handle, passing through the grooved plate from the outside to the inside. A limiting block 42 is fixed to the end of the rotating shaft passing through the grooved plate. A spring 43 is sleeved on the rotating shaft between the limiting block and the inner side of the grooved plate to allow the push-pull handle to be housed in the groove of the grooved plate. The spring allows the push-pull handle to be housed in the groove of the grooved plate when it is not pulled outward, thus not affecting the handling of tobacco leaves.
[0029] In this embodiment, a shaft hole 22 is provided on the underside of the first or second step from bottom to top on the grooved plate, and the rotating shaft passes through the shaft hole and connects to the grooved plate. The rotating shaft is positioned under the step to prevent it from interfering with the normal climbing of personnel.
[0030] In this embodiment, a slot 24, consisting of a pair of limiting plates 23, is provided inside the slot of the channel plate and above the rotating shaft. A positioning plate 44 is fixed on the rotating shaft for inserting the push-pull handle into the slot after it is pulled outward, so that the push-pull handle is in a vertical position. By pulling the handle outward, so that the handle is outside the slot of the channel plate, and then rotating the handle so that the positioning plate aligns with the slot and engages in the slot, one side of the ladder frame can be lifted by pushing and pulling the handle. The reverse operation can retract the push-pull handle into the slot of the channel plate.
[0031] In this embodiment, the frame is made of rectangular tubing, and reinforcing rods 12 are installed inside the frame to improve its strength.
[0032] In this embodiment, the anti-slip layer is an anti-slip mat fixed to the upper surface of the standing platform and the pedal and provided with anti-slip texture, thereby improving the anti-slip effect.
[0033] In this embodiment, the caster is equipped with a braking structure to ensure safety when parked.
[0034] If the terms "first" and "second" are used in the above description to define the components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of distinguishing the components in the description. Unless otherwise stated, the above terms have no special meaning.
[0035] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws) or a non-detachable fixed connection (e.g., riveting or welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).
[0036] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.
[0037] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.
[0038] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.
Claims
1. A movable ladder stand for a tobacco curing barn, comprising a stand body, characterized in that, A ladder frame is inclined on one side of the frame, and steps are spaced apart along its height inside the ladder frame. Anti-slip pads are fixed at the lower end of the ladder frame, and retractable push-pull handles are installed on both sides of the ladder frame. A standing platform is provided on the top of the frame, and an anti-slip layer is provided on the upper surface of the standing platform and the steps. The anti-slip layer is an anti-slip pad fixed to the upper surface of the standing platform and the steps. A pair of casters are provided at the lower end of the side of the frame away from the ladder frame, and the casters are equipped with a braking structure.
2. The mobile ladder rack for tobacco curing barns according to claim 1, characterized in that, The ladder frame is composed of two inclined grooved plates with outward slots, and the tread is a metal plate with both ends welded to the inner side of the grooved plates.
3. The mobile ladder rack for tobacco curing barns according to claim 2, characterized in that, The anti-slip pad is made of wear-resistant rubber and is fixed to the lower end of the grooved plate.
4. The mobile ladder rack for tobacco curing barns according to claim 2 or 3, characterized in that, The lower end of the push-pull handle is fixed with a rotating shaft that passes through the grooved plate from the outside to the inside. The end of the rotating shaft that passes through the grooved plate is fixed with a limiting block. A spring is sleeved on the rotating shaft between the limiting block and the inner side of the grooved plate to allow the push-pull handle to be housed in the groove of the grooved plate.
5. The mobile ladder rack for tobacco curing barns according to claim 4, characterized in that, A shaft hole is provided on the underside of the first or second pedal from bottom to top on the grooved plate, and the rotating shaft passes through the shaft hole and connects to the grooved plate.
6. The mobile ladder rack for tobacco curing barns of claim 4, wherein, The groove of the slotted plate is provided with a slot consisting of a pair of limiting plates on the upper side of the rotating shaft. A positioning plate is fixed on the rotating shaft for inserting the push-pull handle into the slot after it is pulled outward, so that the push-pull handle is in a vertical position.
7. The mobile ladder rack for tobacco curing barns of claim 1, 2, 3, 5 or 6, wherein, The frame is made of rectangular tubing, and reinforcing bars are installed inside the frame.