Safety handrail

By designing a sliding and locking safety handrail structure, the problem of large space occupation of existing safety handrails is solved, achieving stable support during use and space saving during storage.

CN224228234UActive Publication Date: 2026-05-12PROMOSUN ENERGY JIANGYIN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PROMOSUN ENERGY JIANGYIN CO LTD
Filing Date
2025-05-23
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing safety handrails occupy too much platform space when not in use and cannot be stored, resulting in low space utilization.

Method used

设计了一种包括底座和杆体的安全扶手,杆体可滑动并通过限位孔和限位杆锁定,使用时推动杆体上升锁定,作业完毕后拉出限位杆实现收纳,利用卷簧的形变实现自动回落。

Benefits of technology

It provides stable climbing support during use and can be automatically stored after the operation is completed, saving platform space and improving space utilization.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224228234U_ABST
    Figure CN224228234U_ABST
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Abstract

The utility model relates to a safety handrail which comprises a base, a rod body is arranged on the base in a penetrating mode, the rod body is arranged along the base in a sliding mode, the base and the rod body are both provided with limiting holes, limiting rods are arranged in the limiting holes in a penetrating mode, one side of the base is further connected with a coil spring, and the coil spring is connected with the rod body. The bottom of the rod body penetrates through the base to be connected with the first end of the coil spring, the second end of the coil spring is connected with the base, and when the rod body slides along the base, the coil spring is in a deformation state. When the safety handrail is used, the rod body is upwards pushed to ascend along the base till the limiting hole in the rod body is aligned with the limiting hole in the base, then the limiting rod is inserted into the limiting hole, the rod body is locked, the safety handrail climbs up a working platform with the help of force generated by the rod body, and after working is completed, the limiting rod is pulled out of the limiting hole, and then the safety handrail is locked. And the rod body is lightly pushed downwards to naturally fall back, so that storage is completed, a certain space is saved, and the space utilization rate is increased.
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Description

Technical Field

[0001] This utility model relates to the field of climbing assistance tools, and in particular to a safety handrail. Background Technology

[0002] Some equipment has a working platform that is much higher than the ground, requiring safety handrails to facilitate the climb.

[0003] In existing technologies, safety handrails are usually fixed railing structures that cannot be retracted when not in use, thus occupying a lot of platform space. Therefore, there is an urgent need for a safety handrail that can save platform workspace. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the problem that the safety handrails in the prior art cannot be stored, resulting in excessive occupation of platform space, and thus provide a safety handrail that can save platform work space.

[0005] To solve the above-mentioned technical problems, this utility model provides a safety handrail, comprising:

[0006] The base, on which the following is provided:

[0007] A rod body, which is slidably disposed along the base, and both the base and the rod body are provided with:

[0008] A limiting hole, wherein the limiting hole is provided with:

[0009] A limiting rod is also connected to one side of the base:

[0010] A coil spring is provided, with the bottom of the rod passing through the base and connected to the first end of the coil spring, and the second end of the coil spring connected to the base. When the rod slides along the base, the coil spring is in a deformed state.

[0011] As a further improvement of this utility model, a protective sleeve is provided between the base and the rod body, and the limiting rod passes through the protective sleeve and connects to the limiting hole.

[0012] As a further improvement of this utility model, the sheath is provided with a blind hole, an adjusting bolt is inserted into the blind hole, and an adjusting nut is provided on the outside of the base. The adjusting nut is sleeved on the adjusting bolt and is threadedly engaged with the adjusting bolt.

[0013] As a further improvement of this utility model, the sheath is composed of two plates with a U-shaped cross-section.

[0014] As a further improvement of this utility model, the top of the pole is also provided with a horizontally arranged handrail.

[0015] As a further improvement of this utility model, the surface of the limiting rod is provided with an external thread, and the base is provided with a limiting nut located outside the limiting hole, and the external thread of the limiting rod is threadedly engaged with the limiting nut.

[0016] As a further improvement of this utility model, the limiting rod is provided with a pull ring, which is located on the outside of the base.

[0017] As a further improvement of this utility model, the top of the base is provided with a cover plate.

[0018] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0019] This utility model provides a safety handrail. In use, by pushing the rod upwards, the rod rises along the base until the limiting hole on the rod aligns with the limiting hole on the base. Then, the limiting rod is inserted into the limiting hole to lock the rod. At this point, the rod can be used to climb onto the work platform. After the work is completed, the limiting rod is pulled out of the limiting hole, and the rod is gently pushed downwards to allow it to fall back down naturally, thus completing the storage process. This saves platform space and improves space utilization. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of the structure of the safety handrail in a preferred embodiment of the present invention;

[0022] Figure 2 This is a structural schematic diagram of the safety handrail in a preferred embodiment of the present invention (excluding the pole and handrail section).

[0023] The following are the markings on the attached diagrams in the instruction manual: 1. Base; 2. Rod; 3. Limiting rod; 4. Coil spring; 5. Protective sleeve; 6. Adjusting bolt; 7. Adjusting nut; 8. Handrail; 9. Limiting nut; 10. Pull ring; 11. Cover plate. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0025] It should be noted that when a component is referred to as being "set on" or "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "fixed to" another component, or "fixedly connected" to another component, the fixing method can be detachable or non-detachable. When a component is considered to be "connected" or "rotatably connected" to another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," "upper," "lower," and similar expressions used are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] In this utility model, terms such as "first," "second," and "third" are used not to represent specific quantities or orders, but merely to distinguish names.

[0028] In some embodiments, refer to Figures 1-2 As shown, a safety handrail of this utility model includes:

[0029] Base 1, wherein the base 1 is provided with:

[0030] Rod 2, which is slidably disposed along the base 1, and both the base 1 and the rod 2 are provided with:

[0031] A limiting hole, wherein the limiting hole is provided with:

[0032] Limiting rod 3, and one side of the base 1 is also connected to:

[0033] The coil spring 4 is connected to the first end of the rod 2 through the base 1, and the second end of the coil spring 4 is connected to the base 1. When the rod 2 slides along the base 1, the coil spring 4 is in a deformed state.

[0034] In use, push the rod 2 upwards to make it rise along the base 1 until the limiting hole on the rod 2 is aligned with the limiting hole on the base 1. Then insert the limiting rod 3 into the limiting hole to lock the rod 2. At this time, you can use the rod 2 to climb onto the work platform. The coil spring 4 is in a compressed state to store the deformation. When the work is finished, pull the limiting rod 3 out of the limiting hole and push the rod 2 downwards. At the same time, the coil spring 4 releases the deformation, causing the rod 2 to fall back naturally, thus completing the storage. This saves some platform space and improves space utilization.

[0035] As a further improvement of this utility model, a protective sleeve 5 is provided between the base 1 and the rod 2, and the limiting rod 3 passes through the protective sleeve 5 and is connected to the limiting hole.

[0036] By setting a protective sleeve 5 to provide wear-resistant protection for the rod body 2, the wear of the rod body 2 can be reduced.

[0037] As a further improvement of this utility model, the sheath 5 is provided with a blind hole, and an adjusting bolt 6 is inserted through the blind hole. An adjusting nut 7 is provided on the outer side of the base 1. The adjusting nut 7 is sleeved on the adjusting bolt 6 and is threadedly engaged with the adjusting bolt 6.

[0038] When the adjusting bolt 6 is turned, the adjusting nut 7 is fixed, causing the adjusting bolt 6 to go in or out, thereby causing the elastic sleeve 5 to move closer to or further away from the rod 2 under the action of the adjusting bolt 6, that is, adjusting the distance between the two.

[0039] Preferably, multiple sets of adjusting bolts 6 and adjusting nuts 7 can be provided for adjusting multiple surfaces of the sheath 5.

[0040] As a further improvement of this utility model, the sheath 5 is composed of two plates with a U-shaped cross-section.

[0041] Dividing the sheath 5 into two plates makes it easier to sequentially transfer the two plates between the rod 2 and the base 1.

[0042] As a further improvement of this utility model, the top of the rod 2 is also provided with a horizontally arranged handrail 8.

[0043] Compared to directly gripping the pole 2 to climb upwards, the handrail 8 set at the top of the pole 2 improves the comfort and convenience for operators when using the safety handrail.

[0044] As a further improvement of this utility model, the surface of the limiting rod 3 is provided with an external thread, and the base 1 is provided with a limiting nut 9 located outside the limiting hole. The external thread of the limiting rod 3 is threadedly engaged with the limiting nut 9.

[0045] The limiting rod 3 is matched with the limiting nut 9, which makes the limiting rod 3 more stable after being inserted into the limiting hole and less likely to fall out of the limiting hole, thereby improving the stability of the rod body 2 after it is restricted from sliding.

[0046] As a further improvement of this utility model, the limiting rod 3 is provided with a pull ring 10, which is located on the outside of the base 1.

[0047] The pull ring 10 makes it easy to pull or rotate the limit rod 3. Whether the limit rod 3 is directly inserted into the limit hole or rotated into the limit hole through the limit nut 9, the ease of operation is improved.

[0048] As a further improvement of this utility model, the top of the base 1 is provided with a cover plate 11.

[0049] The cover plate 11 can limit the sheath 5, preventing the sheath 5 from detaching from the base 1 as the rod 2 rises.

[0050] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A safety handrail, characterized in that, include: The base, on which the following is provided: A rod body, which is slidably disposed along the base, and both the base and the rod body are provided with: A limiting hole, wherein the limiting hole is provided with: A limiting rod is also connected to one side of the base: A coil spring is provided, with the bottom of the rod passing through the base and connected to the first end of the coil spring, and the second end of the coil spring connected to the base. When the rod slides along the base, the coil spring is in a deformed state.

2. A safety handrail according to claim 1, characterized in that, A protective sleeve is provided between the base and the rod body, and the limiting rod passes through the protective sleeve and connects to the limiting hole.

3. A safety handrail according to claim 2, characterized in that, The sheath has a blind hole, and an adjusting bolt passes through the blind hole. An adjusting nut is provided on the outside of the base, and the adjusting nut is sleeved on the adjusting bolt and threadedly engaged with the adjusting bolt.

4. A safety handrail according to claim 2 or 3, characterized in that, The sheath consists of two U-shaped plates.

5. A safety handrail according to claim 1, characterized in that, The top of the pole is also provided with a horizontally arranged handrail.

6. A safety handrail according to claim 1, characterized in that, The surface of the limiting rod is provided with external threads, and the base is provided with a limiting nut located outside the limiting hole. The external threads of the limiting rod are threadedly engaged with the limiting nut.

7. A safety handrail according to claim 1, characterized in that, The limiting rod is provided with a pull ring, which is located on the outside of the base.

8. A safety handrail according to claim 1, characterized in that, The base is equipped with a cover plate on top.