Handrail device

By adding a flame-retardant layer and a stainless steel layer to the outside of the columns, combined with light strip components, the problem of flammability of stair handrails is solved, achieving both fireproof and decorative effects, and improving the safety and aesthetics of the staircase.

CN223867555UActive Publication Date: 2026-02-03CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP
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Patent Information

Application Number
CN202520073162.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2026-02-03
Estimated Expiration
2035-01-13

AI Technical Summary

Technical Problem

The existing stair railings are made of wood, which is flammable and unsuitable for public lobbies, posing a fire safety hazard.

Method used

The handrail structure consists of multiple columns with an outer first flame-retardant layer and a first stainless steel layer, combined with light strip components. The columns are made of fireproof material, and the light strips are used for decoration, forming a fireproof and aesthetically pleasing handrail structure.

Benefits of technology

It effectively prevents fires in stairwells, increases structural stability, enhances aesthetics, avoids light pollution, and extends the lifespan of the light strips.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223867555U_ABST
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Abstract

The utility model relates to the technical field of handrails, and discloses a handrail device which comprises a plurality of stand columns, a first inflaming retarding layer, a second inflaming retarding layer, a first stainless steel layer and two lamp strip assemblies. The first flame-retardant layer sleeves the plurality of stand columns; the first stainless steel layer sleeves the first flame-retardant layer; the two lamp strip assemblies are arranged on the two sides of the first stainless steel layer, each lamp strip assembly comprises a lamp strip, and the lamp strips are fixed to the first stainless steel layer. The handrail device can effectively carry out inflaming retarding, and fire is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of handrail technology, specifically to a handrail device. Background Technology

[0002] Handrails are an important component of stairs, providing support and protection. They are generally composed of columns, top tubes, and vertical bars.

[0003] Publication No. CN221219430U discloses a stair handrail structure, including a fixed base plate, supporting columns, a decorative cover, and a handrail body. The fixed base plate has bolt holes on its surface and two sets of limiting plates are fixedly connected to it. The supporting columns have limiting grooves on their lower surfaces, through which they are inserted into the limiting plates. A decorative cover is movably connected to the surface of the supporting columns. Two sets of fixing plates are fixedly connected to the lower surface of the handrail body, with fixing grooves on their side walls. A decorative strip is fitted into the inner side wall of each fixing groove. The supporting columns, decorative cover, and handrail body are all made of wood.

[0004] In existing stair handrail structures, wood is used as the component of the handrail. However, wood is a flammable material that will burn rapidly when exposed to fire, making it unsuitable for use as a handrail for public hall staircases. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a handrail device to solve the technical problem that stair handrails are not fireproof in the prior art.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a handrail device, including:

[0008] Multiple columns, which are arranged parallel to each other and spaced apart;

[0009] A first flame-retardant layer is fitted onto the plurality of the columns;

[0010] A first stainless steel layer is fitted over the first flame-retardant layer; and

[0011] Two light strip assemblies are disposed on both sides of the first stainless steel layer. Each light strip assembly includes a light strip, which is fixed to the first stainless steel layer.

[0012] In one embodiment, the column has a polygonal cross-section.

[0013] In one embodiment, the column is a quadrangular prism, and the first flame-retardant layer is attached to two opposite peripheral walls of the column.

[0014] In one embodiment, the light strip assembly further includes a support member, the support member including a second flame-retardant layer, the top of the second flame-retardant layer being connected to the first stainless steel layer, and forming a stepped cavity with the first stainless steel layer, the larger diameter section of the stepped cavity being closer to the ground than the smaller diameter section.

[0015] In one embodiment, the support further includes a second stainless steel layer disposed on the second flame-retardant layer and covering the outer wall of the second flame-retardant layer away from the first stainless steel layer.

[0016] In one embodiment, the second stainless steel layer is formed with a mounting groove, and the light strip is embedded in the mounting groove.

[0017] In one embodiment, the second stainless steel layer forms two mounting grooves, which are spaced apart vertically. The light strip assembly contains two light strips, which are respectively disposed in the two mounting grooves.

[0018] In one embodiment, the two mounting slots of the light strip are respectively disposed at the top of the large-diameter section of the cavity and the top of the small-diameter section of the cavity.

[0019] In one embodiment, the light strip assembly further includes two card holders and two fixing boxes. The two card holders are arranged one-to-one with the two light strips. The card holders are built into the mounting groove and connected to the inner wall of the mounting groove. The card holders form card slots. The fixing boxes are arranged one-to-one with the light strips. The fixing boxes are hollow inside and are locked in the card slots.

[0020] The light strip is built into the fixing box.

[0021] In one embodiment, the fixing box includes a box body and a light-transmitting plate. The box body is hollow inside and open at the top. The light-transmitting plate is disposed at the top open end of the box body and connected to the box body. The light-transmitting plate and the box body together form a space that can accommodate the light strip.

[0022] Compared with the prior art, the handrail device provided by this utility model has a column that can provide structural support in the height direction and fix the handrail device to the building. By setting a first flame-retardant layer and a first stainless steel layer on the outside of the column, the first stainless steel layer can serve a decorative purpose. Moreover, both the first flame-retardant layer and the first stainless steel layer are made of fireproof materials, which can effectively prevent the staircase from catching fire. The first flame-retardant layer is set between the column and the first stainless steel layer. The first flame-retardant layer is usually made of a malleable material and can be made into various shapes as needed. At the same time, it can fix the first stainless steel layer to the column. By setting a light strip, the light strip can serve a decorative purpose and make the staircase more beautiful. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the handrail device provided in an embodiment of the present utility model;

[0024] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle;

[0025] Figure 3 yes Figure 1 A magnified view of a portion of point B in the middle;

[0026] Explanation of reference numerals in the attached figures:

[0027] Column 1; First flame-retardant layer 2; First stainless steel layer 3; LED strip assembly 4; LED strip 41; Support 42; Second flame-retardant layer 421; Cavity 421a; Second stainless steel layer 422; Mounting groove 422a; Card holder 43; Protrusion 43a; Protrusion 43b; Fixing groove 43c; Fixing box 44; Box body 441; Light-transmitting plate 442. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] In order to solve the technical problem that stair handrails in the prior art are not fireproof, this utility model provides a handrail device that can provide fireproof protection.

[0030] It should be noted that the handrail device described in this utility model is used for, but not limited to, public hall stair handrails, etc. For ease of explanation, this utility model only uses the application of the handrail device to public hall stair handrails as an example for explanation. The principle of the handrail device applied to other locations is essentially the same as the principle of its application to public hall stair handrails, and will not be described in detail here.

[0031] Please see Figure 1and Figure 2 , Figure 1 This is a schematic diagram of the handrail device in one embodiment of the present invention. Figure 2 for Figure 1 A partially enlarged schematic diagram at point A shows a handrail device comprising multiple columns 1, a first flame-retardant layer 2, a first stainless steel layer 3, and two light strip assemblies 4. The multiple columns 1 are parallel to each other and spaced apart. The first flame-retardant layer 2 is sleeved on the multiple columns 1. The first stainless steel layer 3 is sleeved on the first flame-retardant layer 2. The two light strip assemblies 4 are disposed on both sides of the first stainless steel layer 3. The light strip assembly 4 includes a light strip 41, which is fixed to the first stainless steel layer 3.

[0032] Specifically, the column 1 provides structural support in the height direction and fixes the handrail device to the building. By setting a first flame-retardant layer 2 and a first stainless steel layer 3 on the outside of the column 1, the first stainless steel layer serves a decorative purpose. Both the first flame-retardant layer 2 and the first stainless steel layer 3 are fire-resistant materials, which can effectively prevent the staircase from catching fire. The first flame-retardant layer 2 is set between the column 1 and the first stainless steel layer 3. The first flame-retardant layer 2 is usually made of a malleable material and can be made into various shapes as needed. At the same time, it can fix the first stainless steel layer 3 to the column 1. By setting a light strip 41, the light strip 41 serves a decorative purpose, making the staircase more beautiful.

[0033] The material of column 1 can be fire-resistant materials such as stainless steel or aluminum alloy.

[0034] The first stainless steel layer 3 is decorated with wood grain, which serves a decorative purpose.

[0035] The first flame-retardant layer 2 is formed by splicing flame-retardant plates, and the first stainless steel layer 3 is formed by bending stainless steel plates.

[0036] It should be understood that the cross-section of column 1 can be circular, polygonal, etc. Specifically, in one embodiment, the cross-section of column 1 is polygonal.

[0037] The column 1 has a polygonal cross-section. Compared with the traditional circular column 1, the polygonal cross-section can provide more support points, thereby increasing the stability of the overall structure.

[0038] It should be understood that the column 1 can be a square prism, a hexagonal prism, etc. Specifically, in one embodiment, the column 1 is a square prism, and the first flame retardant layer 2 is attached to the two opposite peripheral walls of the column 1.

[0039] In this embodiment, the outer wall of the quadrangular prism has four planes, and the first flame-retardant layer 2 can adhere to the two opposite peripheral walls of the column 1, increasing the contact area and stability.

[0040] like Figure 1 and Figure 3 As shown, in one embodiment, the light strip assembly 4 further includes a support member 42, which includes a second flame-retardant layer 421. The top of the second flame-retardant layer 421 is connected to the first stainless steel layer 3, and together with the first stainless steel layer 3, they form a stepped cavity 421a. The larger diameter section of the stepped cavity 421a is closer to the ground than the smaller diameter section.

[0041] In this embodiment, a second flame-retardant layer 421 is provided on both sides of the first stainless steel layer 3. The second flame-retardant layer 421 can reinforce the first stainless steel layer 3. By forming a stepped cavity 421a by the second flame-retardant layer 421 and the first stainless steel layer 3, the bottom of the staircase is stepped, which is more aesthetically pleasing.

[0042] like Figure 1 and Figure 3 As shown, in one embodiment, the support member 42 further includes a second stainless steel layer 422, which is disposed on the second flame retardant layer 421 and covers the second flame retardant layer 421 away from the outer wall of the first stainless steel layer 3.

[0043] By setting a second stainless steel layer 422, the second stainless steel layer 422 can cover the outer wall of the second flame-retardant layer 421, serving both decorative and structural reinforcement purposes.

[0044] The outer wall of the second stainless steel layer 422 is decorated with wood grain, which serves to imitate the structure of wood.

[0045] like Figure 1 and Figure 3 As shown, in one embodiment, the second stainless steel layer 422 is formed with a mounting groove 422a, and the light strip 41 is embedded in the mounting groove 422a.

[0046] By setting the mounting slot 422a, the light strip 41 can be installed in a concealed manner, avoiding the light strip 41 from being exposed.

[0047] like Figure 1 and Figure 3 As shown, in one embodiment, the second stainless steel layer 422 forms two mounting grooves 422a, which are distributed vertically at intervals. The light strip assembly 4 has two light strips 41, which are respectively disposed in the two mounting grooves 422a.

[0048] By setting two light strips 41, two light strips 41 can form two light-emitting strips when they are lit, so that four light-emitting lines appear on the handrail, which can guide the direction of the stair handrail and also serve a decorative purpose.

[0049] like Figure 1As shown, in one embodiment, the two mounting slots 422a of the light strip 41 are respectively disposed on the top of the large diameter section of the cavity 421a and the top of the small diameter section of the cavity 421a.

[0050] The above arrangement places the light strip 41 on the side of the handrail that is easily visible, while preventing the light emitted by the light strip 41 from shining horizontally and avoiding light pollution to other parts of the building.

[0051] like Figure 1 and Figure 3 As shown, in one embodiment, the light strip assembly 4 further includes two card holders 43 and two fixing boxes 44. The two card holders 43 are arranged one-to-one with the two light strips 41. The card holders 43 are built into the mounting grooves 422a and connected to the inner wall of the mounting grooves 422a. The card holders 43 form card slots. The fixing boxes 44 are arranged one-to-one with the light strips 41. The fixing boxes 44 are hollow inside and are locked in the card slots. The light strips 41 are built into the fixing boxes 44.

[0052] By setting the bracket 43 and the fixing box 44, the light strip 41 can be fixed in the mounting groove 422a. At the same time, during the use of the light strip 41, the heat generated by the light strip 41 can be transferred to the second stainless steel layer 422 through the fixing box 44 and the bracket 43, which can quickly dissipate heat and extend the life of the light strip 41. Meanwhile, the snap-fit ​​method between the fixing box 44 and the bracket 43 facilitates the subsequent installation and maintenance of the light strip 41.

[0053] like Figure 3 As shown, in one embodiment, the fixing box 44 includes a box body 441 and a light-transmitting plate 442. The box body 441 is hollow inside and open at the top. The light-transmitting plate 442 is disposed at the top open end of the box body 441 and connected to the box body 441. The light-transmitting plate 442 and the box body 441 together form a space that can accommodate the light strip 41.

[0054] With the above settings, when the light strip 41 emits light, the light passes through the light-transmitting plate 442, causing the top of the fixing box 44 to emit light, which serves a decorative purpose.

[0055] It should be understood that the box body 441 and the card holder 43 can be connected by a card slot and a card block, or by two card blocks.

[0056] Specifically, such as Figure 3 As shown, in one embodiment, the card holder 43 protrudes into the card slot to form two protrusions 43a. The two protrusions 43a are disposed on the inner walls of the card slot on two opposite sides. The box body 441 has two grooves opposite to the two protrusions 43a, and the grooves cooperate with the protrusions 43a.

[0057] By setting the protrusion 43a and the groove, the card holder 43 and the box body 441 are engaged.

[0058] like Figure 3 As shown, in one embodiment, the bottom of the card holder 43 protrudes outward to form a ridge 43b, and the inside of the card holder 43 is formed with a fixing groove 43c relative to the ridge 43b.

[0059] By setting the protrusion 43b, when the card holder 43 is installed into the mounting groove 422a, in order to ensure that the card holder 43 is installed in the set position, the protrusion 43b and the fixing groove 43c are set. The protrusion 43b can deform into the fixing groove 43c, which can ensure that both sides of the card holder 43 are installed in place. By setting the fixing groove 43c, when the box body 441 is inserted into the card slot, the fixing groove 43c can reduce the contact between the bottom inner wall of the card slot and the box body 441, and avoid the bottom inner wall of the card slot from protruding locally, which would prevent the box body 441 from being installed in place.

[0060] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A handrail device, characterized in that, include: Multiple columns, which are arranged parallel to each other and spaced apart; A first flame-retardant layer is fitted onto the plurality of the aforementioned columns; A first stainless steel layer is fitted over the first flame-retardant layer; and Two light strip assemblies are disposed on both sides of the first stainless steel layer. Each light strip assembly includes a light strip, which is fixed to the first stainless steel layer.

2. The handrail device according to claim 1, characterized in that: The cross-section of the column is polygonal.

3. The handrail device according to claim 2, characterized in that: The column is a quadrangular prism, and the first flame-retardant layer is attached to the two opposite peripheral walls of the column.

4. The handrail device according to claim 1, characterized in that: The light strip assembly also includes a support member, which includes a second flame-retardant layer. The top of the second flame-retardant layer is connected to the first stainless steel layer, and together with the first stainless steel layer, they form a stepped cavity. The larger diameter section of the stepped cavity is closer to the ground than the smaller diameter section.

5. The handrail device according to claim 4, characterized in that: The support also includes a second stainless steel layer, which is disposed on the second flame-retardant layer and wraps around the outer wall of the second flame-retardant layer away from the first stainless steel layer.

6. The handrail device according to claim 5, characterized in that: The second stainless steel layer has a mounting groove, and the light strip is embedded in the mounting groove.

7. The handrail device according to claim 6, characterized in that: The second stainless steel layer forms two mounting grooves, which are distributed vertically at intervals. The light strip assembly contains two light strips, which are respectively disposed in the two mounting grooves.

8. The handrail device according to claim 7, characterized in that: The two mounting slots of the light strip are respectively located at the top of the large-diameter section of the cavity and the top of the small-diameter section of the cavity.

9. The handrail device according to claim 6, characterized in that: The light strip assembly also includes two card holders and two fixing boxes. The two card holders are arranged one-to-one with the two light strips. The card holders are built into the mounting groove and connected to the inner wall of the mounting groove. The card holders form card slots. The fixing boxes are arranged one-to-one with the light strips. The fixing boxes are hollow inside and are locked in the card slots. The light strip is built into the fixing box.

10. The handrail device according to claim 9, characterized in that: The fixing box includes a box body and a light-transmitting plate. The box body is hollow inside and has an opening at the top. The light-transmitting plate is disposed at the top opening end of the box body and is connected to the box body. The light-transmitting plate and the box body together form a space that can accommodate the light strip.

Citation Information

Patent Citations

  • Novel solid wood stair handrail structure

    CN221219430U