A handrail guard

Abstract

The utility model provides a handrail guardrail, including handrail guide rail and guardrail, handrail guide rail and guardrail fixed connection, guardrail bottom fixed mounting has the clamping piece and the reinforcing bar, handrail guide rail and guardrail integrative setting, handrail guide rail top is provided with the arc part. This handrail guardrail has the advantages of improving efficiency, guaranteeing precision, reducing cost, improving safety and increasing the appearance, and is suitable for widely applied.

Description

Technical Field

[0001] This utility model belongs to the field of escalator components, and specifically relates to a handrail. Background Technology

[0002] Currently, escalators are core facilities in modern public transportation hubs (such as shopping malls, subway stations, and airports), making their safety and durability paramount. Handrails, as components that passengers directly contact, must balance structural strength, aesthetics, and ease of installation.

[0003] Traditional escalator handrails typically consist of three parts: stainless steel handrail guide rails 7, stainless steel handrail cover plates 8, and reinforcing ribs (e.g., Figure 4 (As shown). Each component is fixed using standard parts such as bolts and nuts, requiring manual assembly. This solution has the following drawbacks: 1. Low assembly efficiency: Separate parts require multiple positioning and fastening, resulting in high labor costs and high skill requirements for assembly personnel; 2. Insufficient dimensional accuracy: Bolted connections are susceptible to assembly errors and drawing tolerances, resulting in overall dimensional deviations and affecting the smooth operation of the handrail belt; 3. High material consumption: The split structure requires additional pre-reserved connection holes and overlap allowance, increasing material consumption; 4. Limited appearance and strength: Dirt easily accumulates at the joints, and there is a risk of stress concentration at the connection points of the separate parts, which may reduce the structural stability with long-term use.

[0004] While existing technologies offer some improvements (such as one-piece welding), the welding process easily leads to stainless steel deformation and surface oxidation, and cannot meet the high-precision machining requirements of complex cross-sections. Therefore, a new type of guardrail structure that balances efficiency, precision, and low cost is urgently needed.

[0005] Therefore, given the shortcomings of the above solutions in actual manufacturing and implementation, a handrail is provided to solve the aforementioned technical problems. Utility Model Content

[0006] This utility model proposes a handrail that solves the problems in the prior art.

[0007] The technical solution of this utility model is implemented as follows: A handrail includes a handrail guide rail and a guardrail, wherein the handrail guide rail and the guardrail are fixedly connected, and a clamp and a reinforcing rib are fixedly installed at the bottom of the guardrail. The handrail guide rail and the guardrail are integrally formed, and an arc-shaped portion is provided at the top of the handrail guide rail. In a preferred embodiment, the handrail guide rail and the guardrail are formed by cold rolling of steel plate, and the handrail guide rail is located above the guardrail.

[0008] In a preferred embodiment, the guardrail includes a base plate, and side rails are provided on both sides of the base plate. The side rails are located below the base plate and are formed by bending the sides of the base plate.

[0009] In a preferred embodiment, a connecting rib is fixedly provided on the bottom surface of the guardrail, and the clamp is fixedly connected to the connecting rib.

[0010] In a preferred embodiment, the clip and the connecting rib are detachably connected by a connector.

[0011] In a preferred embodiment, the clamping piece is provided with an installation groove, the connecting rib includes an installation cavity, the bottom of the installation cavity is provided with a slot, the connecting member is a T-bolt, the T-bolt is fitted with a nut, and the clamping piece is fixedly connected to the connecting rib by the T-bolt and the nut.

[0012] In a preferred embodiment, the handrail guide rail includes two parallel vertical plates, with the arc-shaped portion located above the vertical plates and integrally formed with them. Reinforcing ribs are fixedly installed between the two vertical plates, and multiple reinforcing ribs are evenly distributed between the two vertical plates.

[0013] In a preferred embodiment, the arc-shaped portion includes a top cover plate, the width of which is greater than the distance between the two vertical plates, and the two sides of the top cover plate are connected to the vertical plates via connecting plates.

[0014] In a preferred embodiment, inclined plates are provided on both sides of the top cover plate, with the side of the inclined plate away from the top cover plate connected to the side of the connecting plate, and the side of the inclined plate closer to the top cover plate being higher than the side connected to the connecting plate.

[0015] In a preferred embodiment, the positions where the top cover plate connects to the inclined plate and the positions where the inclined plate connects to the connecting plate are rounded.

[0016] This utility model, taking Hitachi's public transport-type escalator guardrail as an example, is obtained through the following steps: 1. 304 stainless steel sheet (2mm thick) is selected and rolled in 17 passes on a cold rolling mill to form handrails and guardrails. 2. Laser measurement of dimensions, followed by straightening and cutting into 3m standard segments; 3. After electropolishing, it is installed on the escalator truss and fixed by connecting parts, which shortens the installation time by about 35 minutes compared with the traditional solution.

[0017] After adopting the above technical solution, the beneficial effects of this utility model are: 1. Efficiency Improvement: Assembly time reduced by more than 40%, reducing reliance on manual labor; 2. Precision assurance: Cold rolling forming tolerance is controlled within ±0.2mm, resulting in more stable operation of the handrail belt; 3. Cost reduction: Material waste is reduced by 15%-20%, and the manufacturing cost per unit decreases by approximately 25%; 4. Enhanced safety: The seamless, one-piece structure eliminates the risk of stress concentration and improves impact resistance by 30%; 5. Enhanced aesthetics: The surface is smooth with no weld points, making it easy to clean and maintain, and conforms to modern architectural aesthetics. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the main structure of this utility model; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a schematic diagram of the traditional escalator handrail structure mentioned in the background art of this utility model.

[0020] In the diagram, 1. Guardrail; 101. Base plate; 102. Vertical plate; 103. U-shaped channel; 104. Top cover plate; 105. Connecting plate; 106. Side rail; 107. Inclined plate; 2. Clip; 201. Mounting groove; 3. Connecting rib; 4. Reinforcing rib; 5. Reinforcing rib; 6. T-bolt; 7. Stainless steel handrail cover plate; 8. Stainless steel handrail guide rail. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1 , Figure 2As shown, a handrail includes a handrail guide rail and a guardrail 1. The handrail guide rail and the guardrail 1 are fixedly connected. A clip 2 and a reinforcing rib 5 are fixedly installed at the bottom of the guardrail 1. The handrail guide rail and the guardrail 1 are integrally formed. An arc-shaped part is provided at the top of the handrail guide rail.

[0023] In this embodiment, taking Hitachi bus-type escalator guardrail 1 as an example, the handrail guide rail and guardrail 1 are cold-rolled steel plates, with the handrail guide rail located above the guardrail 1. Specifically, 304 stainless steel plates (2mm thick) are selected, and the handrail guide rail and guardrail 1 are formed sequentially by multiple passes of cold rolling mill.

[0024] The guardrail 1 includes a base plate 101, and side rails 106 are provided on both sides of the base plate 101. The side rails 106 are located below the base plate 101 and are formed by bending the sides of the base plate 101.

[0025] In this embodiment, a connecting rib 3 is fixedly provided on the bottom surface of the guardrail 1, and the clamp 2 is fixedly connected to the connecting rib 3.

[0026] The clip 2 and the connecting rib 3 are detachably connected by a connector.

[0027] like Figure 3 As shown, specifically, the clamp 2 is provided with an installation groove 201, the connecting rib 3 includes an installation cavity, the bottom of the installation cavity is provided with a slot, the connecting part is a T-bolt 6, the T-bolt 6 is fitted with a nut, and the clamp 2 is fixedly connected to the connecting rib 3 by the T-bolt 6 and the nut.

[0028] Specifically, the connecting rib 3 is welded to the bottom surface of the guardrail 1.

[0029] like Figure 2 As shown, the handrail guide rail includes two parallel vertical plates 102, with an arc-shaped portion located above the vertical plates 102, and the arc-shaped portion is integrally formed with the vertical plates 102. A reinforcing rib 4 is fixedly installed between the two vertical plates 102.

[0030] The arc-shaped portion includes a top cover plate 104, the width of which is greater than the distance between the two vertical plates 102. The top cover plate 104 is connected to the vertical plates 102 on both sides via connecting plates 105. Specifically, the two vertical plates 102 and the top cover plate 104 form a U-shaped groove 103, and multiple reinforcing ribs 4 are evenly distributed between the two vertical plates 102.

[0031] Inclined plates 107 are provided on both sides of the top cover plate 104. The side of the inclined plate 107 away from the top cover plate 104 is connected to the side of the connecting plate 105. The side of the inclined plate 107 closer to the top cover plate 104 is higher than the side connected to the connecting plate 105.

[0032] The connection between the top cover plate 104 and the inclined plate 107, and the connection between the inclined plate 107 and the connecting plate 105, are rounded.

[0033] Specifically, the processing steps for handrails and guardrails are as follows: Step 1: According to the design drawings, a high-precision cold rolling mill is used to roll the stainless steel sheet through multiple passes to form the top cover plate 104 of the handrail guide rail and guardrail in sequence. Step 2: Online inspection of dimensional accuracy (tolerance controlled within ±0.1mm), and elimination of residual stress through laser straightening; Step 3: Surface treatment, including electropolishing and passivation, to improve corrosion resistance and aesthetics.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A handrail, comprising a handrail guide rail and a guardrail (1), wherein the handrail guide rail and the guardrail (1) are fixedly connected, and a clamp (2) and a reinforcing rib (5) are fixedly installed at the bottom of the guardrail (1), characterized in that, The handrail guide rail and the guardrail (1) are integrally formed. The top of the handrail guide rail is provided with an arc-shaped part. The bottom surface of the guardrail (1) is fixedly provided with a connecting rib (3). The clamp (2) is fixedly connected with the connecting rib (3). The clamp (2) and the connecting rib (3) are detachably connected by a connector. The clamp (2) is provided with an installation groove (201). The connecting rib (3) includes an installation cavity. The bottom of the installation cavity is provided with a slot. The connector is a T-bolt (6). The T-bolt (6) is fitted with a nut. The clamp (2) is fixedly connected with the connecting rib (3) by the T-bolt (6) and the nut.

2. A handrail according to claim 1, characterized in that, The handrail and guardrail (1) are made of cold-rolled steel plate, and the handrail is located above the guardrail (1).

3. A handrail according to claim 1, characterized in that, The guardrail (1) is provided with side rails (106) on both sides. The side rails (106) are located below the guardrail (1) and are made of steel plate bent into shape.

4. A handrail according to claim 1, characterized in that, The handrail guide rail includes two parallel vertical plates (102), and a reinforcing rib (5) is fixedly installed between the two vertical plates (102). Multiple reinforcing ribs (5) are evenly arranged between the two vertical plates (102). The arc-shaped part is located above the vertical plate (102) and is integrally formed with the vertical plate (102).

5. A handrail according to claim 4, characterized in that, The arc-shaped portion includes a top cover plate (104), the width of which is greater than the distance between the two vertical plates (102), and the top cover plate (104) is connected to the vertical plates (102) on both sides by connecting plates (105).

6. A handrail according to claim 5, characterized in that, Inclined plates (107) are provided on both sides of the top cover plate (104). The side of the inclined plate (107) away from the top cover plate (104) is connected to the side of the connecting plate (105). The side of the inclined plate (107) closer to the top cover plate (104) is higher than the side connected to the connecting plate (105).

7. A handrail according to claim 6, characterized in that, The connection between the top cover plate (104) and the inclined plate (107) and the connection between the inclined plate (107) and the connecting plate (105) are rounded.

Images