A supplementary sliding device for a stair handrail

Abstract

This invention relates to the field of auxiliary handling tools, specifically an auxiliary sliding device for carrying food on stair railings. It includes a main support frame, a handrail fitting part, a one-way locking component, and a load-bearing suspension part. The handrail fitting part is assembled to the main support frame and is used to cooperate with the stair railing, and can move along the length of the stair railing. The one-way locking component is located between the main support frame and the handrail fitting part, or is integrated with the handrail fitting part, to achieve a one-way locking function. This invention relies on the stair railing to bear the main weight of heavy objects, and the lever structure distributes the force on the hands. It significantly reduces the burden on the arms and back of the elderly and those with weak constitutions when carrying food or heavy objects up stairs, preventing strain. The one-way locking component allows only upward movement and automatically locks when sliding down, eliminating the safety hazards of being dragged by heavy objects, losing balance, or falling. It is highly safe to use, and even heavy items like rice, flour, fruits, and vegetables can be easily carried upstairs.

Description

Technical Field

[0001] This invention relates to the field of auxiliary handling tools, specifically an auxiliary sliding device for lifting food onto stair railings. Background Technology

[0002] In older, multi-story residential buildings and buildings without elevators, elderly and frail individuals often need to carry heavy objects up stairs after purchasing vegetables, rice, flour, and daily necessities. Prolonged carrying such loads can easily lead to wrist strain, back pain, and even loss of balance due to the weight, resulting in falls or missteps. Currently, there is a lack of specialized load-bearing aids for stair railings on the market, and existing solutions have many shortcomings.

[0003] First, simple cloth bags and plastic baskets lack a load-bearing structure, with the entire weight borne by the hands and arms. Elderly people often lack muscle strength, making even short-distance climbing very strenuous and increasing the burden on their joints over time.

[0004] Secondly, ordinary hand-pulled stair-climbing carts are large and heavy, making them difficult to pass through narrow stairwells and passageways. They cannot be used to get close to the handrails for leverage, and their use is limited when turning or on narrow staircases.

[0005] Third, the lack of a one-way anti-slip braking structure means that if the hands are loosened when carrying heavy loads upstairs, the heavy objects will slide down the handrail quickly, which can easily drag the user off balance and cause them to fall, posing a significant safety hazard.

[0006] Fourth, traditional leverage tools have poor adaptability and cannot be used with metal or solid wood stair railings of different thicknesses. They are not secure and are prone to slipping off the railing during the sliding process, causing heavy objects to fall.

[0007] Fifth, the lack of an adjustable load-bearing and fixing structure makes it impossible to stably hang miscellaneous items of different sizes such as vegetable baskets, cloth bags, and cardboard boxes, which are prone to tipping over and falling during transportation. Therefore, an auxiliary sliding device for lifting vegetables is proposed for stair handrails. Summary of the Invention

[0008] In view of this, the present invention provides an auxiliary sliding device for lifting food onto a stair handrail, in order to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial alternative.

[0009] The technical solution of this invention is implemented as follows: An auxiliary sliding device for lifting food onto a stair railing includes a main support frame, a handrail mating part, a one-way locking component, and a load-bearing suspension part; the handrail mating part is assembled on the main support frame and is used to cooperate with the stair railing, and can move along the length of the stair railing; the one-way locking component is disposed between the main support frame and the handrail mating part, or is integrated with the handrail mating part, and is used to restrict the handrail mating part to move only in one direction along the upward direction of the stair railing, and automatically locks when the device is subjected to a downward force; the load-bearing suspension part is disposed on the main support frame and is used to suspend the heavy object to be moved; the weight of the heavy object is transferred to the stair railing through the handrail mating part, realizing load transfer.

[0010] More preferably, the handrail mating part is at least one roller, and the wheel surface of the roller is configured with a V-shaped, U-shaped or arc-shaped groove structure adapted to the shape of the stair handrail.

[0011] More preferably, the outer wall of the roller is fitted with an anti-slip sleeve, or the surface of the roller is integrally made of an anti-slip material.

[0012] More preferably, the one-way locking component is a one-way bearing; the inner ring of the one-way bearing is fixedly connected to the main support frame, and the outer ring of the one-way bearing is fixedly connected to the roller, thereby restricting the roller to rotate only in the upward direction along the stair handrail.

[0013] More preferably, the main support frame includes a connecting rod and a handrail arranged coaxially, and the armrest mating part is assembled to the outer side wall of the handrail.

[0014] More preferably, the surface of the load-bearing suspension part is provided with a limiting groove to restrain the handle of the heavy object and prevent it from sliding off; the gripping area of ​​the load-bearing suspension part and / or the main support frame is covered with a flexible anti-slip layer.

[0015] Preferably, the connecting rod, the handrail, and the armrest are detachably connected, which facilitates disassembly, storage, and component replacement.

[0016] More preferably, the main support frame is also equipped with a power assist component for driving the handrail mating part to move upward along the stair handrail, providing electric assistance.

[0017] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions:

[0018] This invention relies on the stair handrail to bear the main weight of heavy objects, and the lever structure distributes the force on the hands. It greatly reduces the burden on the arms and back of the elderly and the weak when carrying vegetables or heavy objects upstairs, avoiding strain. The one-way locking component allows only upward movement and automatically locks when moving downwards, eliminating the safety hazards of being dragged by heavy objects, losing balance, or falling. It is highly safe to use, and even heavy rice, flour, fruits and vegetables can be easily carried upstairs.

[0019] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural diagram of the present invention;

[0022] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0023] Reference numerals: 1. Main support frame; 11. Connecting rod; 12. Handrail; 2. One-way locking assembly; 21. One-way bearing; 3. Handrail mating part; 31. Roller; 4. Anti-slip sleeve; 5. Load-bearing suspension part. Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0026] like Figure 1-2As shown, this embodiment of the invention provides an auxiliary sliding device for lifting food onto a stair railing, including a main support frame 1, a handrail mating part 3, a one-way locking component 2, and a load-bearing suspension part 5. The handrail mating part 3 is assembled on the main support frame 1 and is used to cooperate with the stair railing, and can move along the length of the stair railing. The one-way locking component 2 is disposed between the main support frame 1 and the handrail mating part 3, or is integrated with the handrail mating part 3, and is used to restrict the handrail mating part 3 to move only in one direction along the upward direction of the stair railing. When the device is subjected to a downward force, it automatically locks. The load-bearing suspension part 5 is disposed on the main support frame 1 and is used to suspend the heavy object to be moved. The weight of the heavy object is transferred to the stair railing through the handrail mating part 3, realizing load transfer.

[0027] In one embodiment, the handrail mating part 3 is at least one roller 31. The wheel surface of the roller 31 is configured with a V-shaped, U-shaped or arc-shaped groove structure that adapts to the shape of the stair handrail. The handrail mating part 3 can be selected as a multi-wheel wrapping type, a slider type or a snap-on sliding type.

[0028] In one embodiment, the outer wall of the roller 31 is fitted with an anti-slip sleeve 4, or the surface of the roller 31 is integrally made of an anti-slip material.

[0029] In one embodiment, the one-way locking component 2 is a one-way bearing 21; the inner ring of the one-way bearing 21 is fixedly connected to the main support frame 1, and the outer ring of the one-way bearing 21 is fixedly connected to the roller 31. The one-way bearing 21 restricts the roller 31 to rotate only in the upward direction of the stair handrail. The one-way locking component 2 can be selected from ratchet and pawl, wedge clutch, or gravity self-locking structure.

[0030] In one embodiment, the main support frame 1 includes a connecting rod 11 and a handrail 12 arranged coaxially, and the armrest mating part 3 is assembled to the outer side wall of the handrail 12.

[0031] In one embodiment, a limiting groove is provided on the surface of the load-bearing suspension part 5 to restrain the handle of heavy objects and prevent it from sliding off; the gripping area of ​​the load-bearing suspension part 5 and / or the main support frame 1 is covered with a flexible anti-slip layer, and the load-bearing suspension part 5 can be a hook type, a tray type, or a basket type.

[0032] In one embodiment, the connecting rod 11, the handrail 12, and the armrest mating part 3 are detachably connected, which facilitates disassembly, storage, and component replacement.

[0033] In one embodiment, the main support frame 1 is also equipped with a power assist component for driving the handrail mating part 3 to move upward along the stair handrail, providing electric assistance.

[0034] When this invention is in operation: The roller 31 fits tightly against the outer wall of the stair handrail. Heavy objects such as vegetables and household items are suspended on the handle 12. The load is transferred to the handrail via the roller 31, leveraging the lever principle to transfer most of the weight to the handrail, significantly reducing hand strain. The roller 31 rolls upwards along the handrail. The one-way bearing 21, fitted between the handle 12, connecting rod 11, and roller 31, only allows the roller 31 to rotate upwards in one direction. If the hand relaxes and the heavy object tends to slide downwards, the one-way bearing 21 immediately locks the roller 31, preventing the device and heavy object from sliding down the handrail and causing the user to fall. After carrying the item upstairs, the entire device can be removed from the handrail. When going downstairs, the device can be carried by hand or slid unloaded, providing full anti-slip safety, saving effort and convenience. Pure human power is as shown above; a motor or other power-assisted device can be added later. The handle 12, connecting rod 11, and roller 31 are detachably connected for easier subsequent production.

[0035] Those skilled in the art will understand that the one-way locking assembly can also adopt a friction self-locking structure integrated with the handrail mating part, and the device can be tilted by the pulling force of the heavy object, so that the friction block clamps the handrail to achieve downward locking;

[0036] The handrail mating part can also adopt an alternating locking stepping claw structure, which achieves upward stepping movement along the handrail by alternating locking of two locking claws.

[0037] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

[0038] This device is compatible with various conventional stair handrails, including round, square, wooden, and metal ones.

Claims

1. An auxiliary food-lifting sliding device for stair handrails, characterized in that: The device includes a main support frame (1), a handrail fitting part (3), a one-way locking component (2), and a load-bearing suspension part (5). The handrail fitting part (3) is assembled on the main support frame (1) and is used to cooperate with the stair handrail and can move along the length of the stair handrail. The one-way locking component (2) is located between the main support frame (1) and the handrail fitting part (3), or is integrated with the handrail fitting part (3) to restrict the handrail fitting part (3) to move only in one direction along the upward direction of the stair handrail. It automatically locks when the device is subjected to a downward force. The load-bearing suspension part (5) is located on the main support frame (1) and is used to suspend heavy objects to be transported. The weight of the heavy objects is transferred to the stair handrail through the handrail fitting part (3) to realize load transfer.

2. The auxiliary food-lifting sliding device for stair handrails according to claim 1, characterized in that: The handrail fitting part (3) is at least one roller (31), and the wheel surface of the roller (31) is configured as a V-shaped, U-shaped or arc-shaped groove structure adapted to the shape of the stair handrail.

3. The auxiliary food-lifting sliding device for stair handrails according to claim 2, characterized in that: The outer wall of the roller (31) is fitted with an anti-slip sleeve (4), or the surface of the roller (31) is made of an anti-slip material in one piece.

4. The auxiliary food-lifting sliding device for stair handrails according to claim 2, characterized in that: The one-way locking assembly (2) is a one-way bearing (21); the inner ring of the one-way bearing (21) is fixedly connected to the main support frame (1), and the outer ring of the one-way bearing (21) is fixedly connected to the roller (31). The one-way bearing (21) restricts the roller (31) to rotate only in the upward direction along the stair handrail.

5. The auxiliary food-lifting sliding device for stair handrails according to claim 1, characterized in that: The main support frame (1) includes a connecting rod (11) and a handrail (12) arranged coaxially, and the armrest fitting part (3) is assembled on the outer side wall of the handrail (12).

6. The auxiliary food-lifting sliding device for stair handrails according to claim 1, characterized in that: The surface of the load-bearing suspension part (5) is provided with a limiting groove to restrain the handle of the heavy object and prevent it from sliding off; the gripping area of ​​the load-bearing suspension part (5) and / or the main support frame (1) is covered with a flexible anti-slip layer.

7. An auxiliary food-lifting sliding device for stair handrails according to claim 5, characterized in that: The connecting rod (11), the handrail (12) and the armrest mating part (3) are detachably connected, which facilitates disassembly, storage and replacement of parts.

8. The auxiliary food-lifting sliding device for stair handrails according to claim 1, characterized in that: The main support frame (1) is also equipped with a power assist component, which is used to drive the handrail mating part (3) to move upward along the stair handrail and provide electric assistance.

9. A method for assisting in the transport of heavy objects using stair handrails, in conjunction with an auxiliary sliding device for lifting food onto stair handrails as described in any one of claims 1-8, characterized in that: The device is attached to the stair handrail by the handrail fitting part (3), and the heavy object is hung on the load-bearing part of the device so that the load of the heavy object is transferred to the stair handrail through the handrail fitting part (3); the device can only move upward along the stair handrail by the one-way locking component (2), and automatically locks when subjected to downward force.

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