Mounting structure for fixing a barrier-free handrail
Patent Information
- Application Number
- CN202522046421.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-09-23
AI Technical Summary
[0003]1)、直接用普通膨胀螺栓固定在加气混凝土砌块墙体上，扶手受力时，膨胀螺栓易在加气混凝土砌块中松动、滑脱，导致扶手晃动，存在安全隐患；
[0017](1)、本实用新型的安装结构包括加气混凝土砌块墙体、瓷砖层、若干专用紧固件、双层钢板、无障碍扶手，瓷砖层设置于加气混凝土砌块墙体和双层钢板之间，瓷砖层铺设于加气混凝土砌块墙体表面，无障碍扶手固定于双层钢板上，双层钢板包括不锈钢预制板、扶手基座板、基座固定件，不锈钢预制板通过专用紧固件锚固于加气混凝土砌块墙体上且位于瓷砖层的外侧，扶手基座板设置于不锈钢预制板的外侧并通过基座固定件与不锈钢预制板固定连接。通过双层钢板与专用紧固件结合实现无障碍扶手与加气混凝土砌块墙体的固定、有效分散受力、显著提高无障碍扶手安装的稳定性、牢固性和承重能力。
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Figure CN224717334U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and specifically to an installation structure for fixing barrier-free handrails. Background Technology
[0002] Accessible handrails are indispensable safety facilities in public places such as hospitals, nursing homes, and restrooms, providing support and leverage for the elderly, disabled, and other people with mobility difficulties. Currently, accessible handrails are typically fixed with a base plate, which is directly fixed to the aerated concrete block wall using ordinary expansion bolts. In modern architecture, aerated concrete blocks are widely used as infill material for aerated concrete block walls due to their lightweight and thermal insulation advantages; however, their strength is relatively low and their texture is porous. Existing accessible handrail fixing structures have the following shortcomings:
[0003] 1) When the handrail is directly fixed to the aerated concrete block wall with ordinary expansion bolts, the expansion bolts are easy to loosen and slip out in the aerated concrete block when the handrail is under force, causing the handrail to sway and posing a safety hazard.
[0004] 2) A single fixed point is difficult to withstand frequent vertical tension and horizontal thrust, the handrail has poor load-bearing capacity and cannot meet the force requirements when users hold on. Utility Model Content
[0005] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing an installation structure that combines double-layer steel plates with special fasteners to fix the barrier-free handrail to the aerated concrete block wall, effectively distribute the force, and significantly improve the stability, firmness and load-bearing capacity of the barrier-free handrail installation.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0007] An installation structure for fixing accessible handrails includes an aerated concrete block wall, a tile layer, several special fasteners, a double-layer steel plate, and an accessible handrail. The tile layer is disposed between the aerated concrete block wall and the double-layer steel plate, and is laid on the surface of the aerated concrete block wall. The double-layer steel plate is anchored to the aerated concrete block wall by several special fasteners and is located outside the tile layer. The accessible handrail is fixed to the double-layer steel plate. The double-layer steel plate includes a precast stainless steel plate, a handrail base plate, and base fixing components. The precast stainless steel plate is anchored to the aerated concrete block wall by special fasteners and is located outside the tile layer. The handrail base plate is disposed outside the precast stainless steel plate and is fixedly connected to the precast stainless steel plate by the base fixing components. The accessible handrail is fixed to the handrail base plate.
[0008] Furthermore, the aerated concrete block wall comprises several aerated concrete blocks and an adhesive layer, and the several aerated concrete blocks are laid layer by layer through the adhesive layer to form the aerated concrete block wall.
[0009] Furthermore, the special fastener is a special expansion bolt for aerated concrete blocks. The special expansion bolt for aerated concrete blocks includes a bolt shank, an expansion sleeve, and a round cap nut. The expansion sleeve is sleeved on the bolt shank and can move along its axial direction. One end of the bolt shank is a tip for drilling into the aerated concrete block wall. The other end of the bolt shank is threadedly connected to the round cap nut. The outer surface of the head of the round cap nut is sprayed with a white coating that matches the color of the aerated concrete block.
[0010] Furthermore, structural adhesive is provided between the stainless steel precast panel and the tile layer, and the stainless steel precast panel is bonded and fixed to the tile layer by the structural adhesive, which fills the gap between the back of the stainless steel precast panel and the tile layer.
[0011] Furthermore, the structural adhesive is an epoxy resin structural adhesive.
[0012] Furthermore, the handrail base plate is made of stainless steel, the dimensions of the handrail base plate are 80×200mm, and the base fixing component is an M6 Phillips head countersunk screw.
[0013] Furthermore, the handrail base plate is provided with four first screw holes that cooperate with the base fixing component. The four first screw holes are distributed around the perimeter of the handrail base plate. The stainless steel precast plate is provided with four second screw holes that cooperate with the four first screw holes on the handrail base plate. The base fixing component passes through the four first screw holes on the handrail base plate and the four second screw holes on the stainless steel precast plate in sequence and is then fixed to the stainless steel precast plate.
[0014] Furthermore, the stainless steel precast plate is a 304 stainless steel plate, the thickness of the stainless steel precast plate is 5mm, and the size of the stainless steel precast plate is 200×400mm.
[0015] Furthermore, the stainless steel precast plate is provided with several bolt holes that cooperate with several special fasteners. The several special fasteners pass through the several bolt holes of the stainless steel precast plate to anchor the stainless steel precast plate to the aerated concrete block wall.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] (1) The installation structure of this utility model includes an aerated concrete block wall, a tile layer, several special fasteners, a double-layer steel plate, and a barrier-free handrail. The tile layer is located between the aerated concrete block wall and the double-layer steel plate, and is laid on the surface of the aerated concrete block wall. The barrier-free handrail is fixed to the double-layer steel plate, which includes a stainless steel precast plate, a handrail base plate, and base fixing components. The stainless steel precast plate is anchored to the aerated concrete block wall by special fasteners and is located outside the tile layer. The handrail base plate is located outside the stainless steel precast plate and is fixedly connected to the stainless steel precast plate by the base fixing components. The combination of the double-layer steel plate and special fasteners achieves the fixation of the barrier-free handrail to the aerated concrete block wall, effectively disperses the force, and significantly improves the stability, firmness, and load-bearing capacity of the barrier-free handrail installation.
[0018] (2) In this invention, a structural adhesive is provided between the stainless steel precast slab and the tile layer, and the structural adhesive fills the gap between the back of the stainless steel precast slab and the tile layer. The structural adhesive used in this invention to fill the gap between the stainless steel precast slab and the tile layer is preferably epoxy resin structural adhesive, which can completely fill the gap between the stainless steel precast slab and the finished tile surface, significantly improving the overall structural bonding strength and durability, avoiding localized stress concentration, and reducing the risk of cracking or detachment. Attached Figure Description
[0019] Figure 1 This is a schematic diagram showing the relationship between the double-layer steel plate and the barrier-free handrail of this utility model;
[0020] Figure 2 This is a diagram showing the usage state of the mounting structure for fixing the barrier-free handrail of this utility model;
[0021] Figure 3 This is a schematic diagram showing the relationship between the double-layer steel plate and the ceramic tile layer of this utility model;
[0022] Figure 4 This is a structural diagram of the special fastener of this utility model;
[0023] Figure 5 This is a schematic diagram of the stainless steel prefabricated structure of this utility model;
[0024] Figure 6 This is a schematic diagram showing the relationship between the handrail base plate and the barrier-free handrail of this utility model.
[0025] In the diagram, the components are: 1. Aerated concrete block wall; 11. Aerated concrete block; 12. Adhesive layer; 2. Tile layer; 3. Special fastener; 31. Bolt rod; 32. Expansion sleeve; 33. Round cap nut; 4. Double-layer steel plate; 41. Stainless steel precast plate; 41. Second screw hole; 412. Bolt hole; 42. Handrail base plate; 42. First screw hole; 421. Base fixing component; 43. Barrier-free handrail; 5. Structural adhesive; 6. Detailed Implementation
[0026] 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.
[0027] like Figures 1-6 As shown, this utility model provides an installation structure for fixing an accessible handrail 5. The installation structure includes an aerated concrete block wall 1, a tile layer 2, several special fasteners 3, a double-layer steel plate 4, and the accessible handrail 5. The tile layer 2 is disposed between the aerated concrete block wall 1 and the double-layer steel plate 4, and is laid on the surface of the aerated concrete block wall 1. The double-layer steel plate 4 is anchored to the aerated concrete block wall 1 by several special fasteners 3 and is located outside the tile layer 2. The accessible handrail 5 is fixed to the double-layer steel plate 4. The double-layer steel plate 4 includes a stainless steel precast plate 41 and a handrail base plate 42. The base fixing component 43 and the stainless steel precast plate 41 are anchored to the aerated concrete block wall 1 by special fasteners 3 and are located on the outside of the tile layer 2. The handrail base plate 42 is set on the outside of the stainless steel precast plate 41 and is fixedly connected to the stainless steel precast plate 41 by the base fixing component 43. The stainless steel precast plate 41 is connected to the aerated concrete block wall 1 by several sets of special fasteners 3. The handrail base plate 42 and the stainless steel precast plate 41 are fixed by the base fixing component 43, which improves the connection between the handrail base plate 42 and the aerated concrete block wall 1. The barrier-free handrail 5 is fixed on the handrail base plate 42. This utility model fixes the accessible handrail 5 to a double-layer steel plate 4, and uses special fasteners 3 to fix the double-layer steel plate 4 to the aerated concrete block wall 1. The double-layer steel plate 4 uses a stainless steel precast plate 41 and a handrail base plate 42 as a reinforcing plate for fixing the accessible handrail 5, which greatly increases the contact area and connection points between the accessible handrail 5 and the aerated concrete block wall 1. The concentrated load of the accessible handrail 5 is dispersed through the stainless steel precast plate 41 and the handrail base plate 42, so that the load borne by the accessible handrail 5 is effectively distributed to a larger area of the aerated concrete block wall 1, avoiding stress concentration. The double-layer steel plate 4 provides a sturdy load-bearing frame for the accessible handrail 5, which significantly improves the load-bearing capacity of the accessible handrail 5 in the vertical and horizontal directions, has a high safety factor, can safely bear the full weight of the user, improves the stability of the installation of the accessible handrail 5, and also improves the firmness of the connection between the base of the accessible handrail 5 and the aerated concrete block wall 1 and the load-bearing capacity after installation.
[0028] In a specific implementation of this utility model, the aerated concrete block wall 1 includes several aerated concrete blocks 11 and an adhesive layer 12. The several aerated concrete blocks 11 are laid layer by layer through the adhesive layer 12 to form the aerated concrete block wall 1. In a specific implementation, the vertical mortar joints of the aerated concrete blocks 11 in the upper and lower adjacent layers are staggered to form a staggered joint structure, which effectively avoids the generation of continuous joints, making the aerated concrete block wall 1 uniformly stressed and greatly enhancing the overall stability and seismic resistance of the aerated concrete block wall 1.
[0029] The special fastener 3 of this utility model is a special expansion bolt for aerated concrete block 11. The special expansion bolt for aerated concrete block 11 includes a bolt rod 31, an expansion sleeve 32, and a round cap nut 33. The expansion sleeve 32 is sleeved on the bolt rod 31 and can move along its axial direction. One end of the bolt rod 31 is a tip for drilling into the aerated concrete block wall 1. The other end of the bolt rod 31 is threadedly connected to the round cap nut 33. The outer surface of the head of the round cap nut 33 is sprayed with a white coating that matches the color of the aerated concrete block 11. The expansion sleeve 32 is driven to move towards the tip of the bolt shank 31 by a screwing action, causing radial expansion at the distal end of the expansion sleeve 32. The special expansion bolt for aerated concrete block 11 adopts an M8×100×6 specification bolt (where M8 indicates a nominal thread diameter of 8mm, 100 indicates a total bolt length of 100mm, and 6 indicates a thread length of 6mm), and the bolt shank 31 is adapted to meet the installation strength requirements of the aerated concrete block wall 1, thereby achieving fixation through the stainless steel precast plate 41 to the aerated concrete block wall 1. The stainless steel precast plate 41 is provided with multiple bolt holes 412 to further improve the fixing effect. This utility model uses a special expansion bolt for aerated concrete block 11 specifically selected for aerated concrete block wall 1, which solves the problem of anchoring ordinary bolts on aerated concrete block wall 1 and ensures the reliability of the connection.
[0030] In this embodiment, structural adhesive 6 is provided between the stainless steel precast slab 41 and the tile layer 2. The stainless steel precast slab 41 is bonded and fixed to the tile layer 2 by the structural adhesive 6, which fills the gap between the back of the stainless steel precast slab 41 and the tile layer 2. The structural adhesive 6 is an epoxy resin structural adhesive 6. In this invention, the structural adhesive 6 used to fill the gap between the stainless steel precast slab 41 and the tile layer 2 is preferably an epoxy resin structural adhesive 6. This can completely fill the gap between the stainless steel precast slab 41 and the finished surface of the tile, forming a uniform and continuous adhesive layer. This significantly improves the bonding strength and durability of the overall structure, avoids local stress concentration, reduces the risk of cracking or falling off, and directly fixes the structure by the structural adhesive 6, eliminating the complex processes of traditional keel or fastener anchoring, reducing construction difficulty, shortening the construction period, reducing the use of fasteners, and reducing material and labor costs. Furthermore, structural adhesive 6 is filled between the stainless steel precast panel 41 and the tile layer 2. The structural adhesive 6 has the characteristics of high strength and high adhesion, which enables the stainless steel precast panel 41 and the tile layer 2 to be tightly bonded together, fill the gap between the precast panel and the tile layer 2, and further enhance the connection stability between the stainless steel precast panel 41 and the aerated concrete block wall 1. This can form a multi-layer stable connection structure of stainless steel precast panel 41 - structural adhesive 6 - tile layer 2 - aerated concrete block wall 1.
[0031] In other embodiments, the back of the stainless steel precast panel 41 may also be provided with raised and recessed textures to increase the bonding area. By providing raised and recessed textures on the back of the stainless steel precast panel 41, the bonding contact area is increased, the adhesion between the structural adhesive 6 and the stainless steel precast panel 41 is enhanced, and the shear resistance and long-term stability of the bonding interface are further improved.
[0032] The handrail base plate 42 of this utility model is made of stainless steel and has dimensions of 80×200mm. The base fixing component 43 is an M6 Phillips head countersunk screw. The handrail base plate 42 has four first screw holes 421 that mate with the base fixing component 43, distributed around the perimeter of the handrail base plate 42. The stainless steel precast plate 41 has four second screw holes 411 that mate with the four first screw holes 421 on the handrail base plate 42. The base fixing component 43 passes through the four first screw holes 421 on the handrail base plate 42 and the four second screw holes 411 on the stainless steel precast plate 41 in sequence and is then fixed to the stainless steel precast plate 41. The handrail base plate 42 is made of 80×200 stainless steel prefabricated plate 41. Four first screw holes 421 are reserved on the handrail base plate 42, and the positions of the first screw holes 421 correspond one-to-one with the four second screw holes 411 on the stainless steel prefabricated plate 41. The two are fixedly connected by the base fastener 43 (i.e. M6 Phillips head countersunk screw). The M6 Phillips head countersunk screw can make the screw head embedded in the surface of the handrail base plate 42, avoiding the protruding part from scratching the user and improving the safety of use.
[0033] In this specific implementation, the stainless steel precast plate 41 is made of 304 stainless steel, with a thickness of 5mm and a size of 200×400mm. Preferably, the stainless steel precast plate 41 is made of 304 stainless steel, which has excellent corrosion resistance and mechanical strength. The 5mm thickness ensures the load-bearing capacity of the stainless steel precast plate 41 itself. Simultaneously, the preferred size of the stainless steel precast plate 41 is 200×400mm, which not only meets the connection requirements with the handrail base plate 42 but also enhances the connection stability with the aerated concrete block wall 1 through a larger contact area. A white coating matching the color of the aerated concrete block 11 is sprayed onto the surface of the stainless steel precast plate 41, which can match the interior decoration style of the aerated concrete block wall 1, improving aesthetics. Furthermore, four second screw holes 411 are pre-drilled on the stainless steel precast plate 41 to cooperate with the base fixing component 43 for connecting the handrail base plate 42. The stainless steel precast slab 41 is provided with a plurality of bolt holes 412 that mate with a plurality of special fasteners 3. The plurality of special fasteners 3 pass through the plurality of bolt holes 412 of the stainless steel precast slab 41 to anchor the stainless steel precast slab 41 to the aerated concrete block wall 1. In this embodiment of the present invention, the stainless steel precast slab 41 is provided with six bolt holes 412, which are used to anchor the stainless steel precast slab 41 to the aerated concrete block wall 1 by mates with the special fasteners 3.
[0034] The operation process for fixing the barrier-free handrail 5 using the installation structure of this utility model is as follows:
[0035] First, determine the location for the handrail installation, and then lay a layer of ceramic tiles 2 on the surface of the aerated concrete block wall 1.
[0036] Secondly, before fixing the stainless steel precast panel 41, a layer of structural adhesive 6 needs to be evenly applied to the back of the stainless steel precast panel 41. Then, the stainless steel precast panel 41 is pressed firmly onto the tile layer 2 to ensure that the structural adhesive 6 fills the gap between the stainless steel precast panel 41 and the tile layer 2 to form a strong bond.
[0037] Next, attach the stainless steel precast plate 41 tightly to the aerated concrete block wall 1. Mark the drilling positions on the aerated concrete block wall 1 according to the positions of the six bolt holes 412 on the stainless steel precast plate 41. Drill holes at the marked positions using an electric drill. After positioning, put the special fasteners 3 into the holes and tighten them to firmly fix the stainless steel precast plate 41 to the aerated concrete block wall 1.
[0038] Then, the base fastener 43 is used to tighten and fix the handrail base plate 42 to the second screw hole 411 of the pre-embedded stainless steel precast plate 41 through the second screw hole 411 on the handrail base plate 42.
[0039] Finally, fix the bottom of the accessible handrail 5 to the handrail base plate 42 to complete the installation and fixing of the entire accessible handrail 5.
[0040] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.
Claims
1. An installation structure for fixing accessible handrails, characterized in that: The installation structure includes an aerated concrete block wall, a tile layer, several special fasteners, a double-layer steel plate, and an accessible handrail. The tile layer is disposed between the aerated concrete block wall and the double-layer steel plate, and is laid on the surface of the aerated concrete block wall. The double-layer steel plate is anchored to the aerated concrete block wall by several special fasteners and is located outside the tile layer. The accessible handrail is fixed to the double-layer steel plate. The double-layer steel plate includes a stainless steel precast plate, a handrail base plate, and base fixing components. The stainless steel precast plate is anchored to the aerated concrete block wall by special fasteners and is located outside the tile layer. The handrail base plate is disposed outside the stainless steel precast plate and is fixedly connected to the stainless steel precast plate by the base fixing components. The accessible handrail is fixed to the handrail base plate.
2. The installation structure for fixing barrier-free handrails according to claim 1, characterized in that: The aerated concrete block wall consists of several aerated concrete blocks and an adhesive layer. The aerated concrete blocks are laid layer by layer through the adhesive layer to form the aerated concrete block wall.
3. The installation structure for fixing barrier-free handrails according to claim 2, characterized in that: The special fastener is a special expansion bolt for aerated concrete blocks. The special expansion bolt for aerated concrete blocks includes a bolt shank, an expansion sleeve, and a round cap nut. The expansion sleeve is sleeved on the bolt shank and can move along its axial direction. One end of the bolt shank is a tip for drilling into the aerated concrete block wall. The other end of the bolt shank is threadedly connected to the round cap nut. The outer surface of the head of the round cap nut is sprayed with a white coating that matches the color of the aerated concrete block.
4. The installation structure for fixing barrier-free handrails according to claim 1, characterized in that: Structural adhesive is provided between the stainless steel precast panel and the tile layer. The stainless steel precast panel is bonded and fixed to the tile layer by the structural adhesive, and the structural adhesive fills the gap between the back of the stainless steel precast panel and the tile layer.
5. The installation structure for fixing barrier-free handrails according to claim 4, characterized in that: The structural adhesive is an epoxy resin structural adhesive.
6. The installation structure for fixing barrier-free handrails according to claim 1, characterized in that: The handrail base plate is made of stainless steel and measures 80×200mm. The base fixing component is an M6 Phillips head countersunk screw.
7. The installation structure for fixing barrier-free handrails according to claim 1, characterized in that: The handrail base plate is provided with four first screw holes that cooperate with the base fixing component. The four first screw holes are distributed around the perimeter of the handrail base plate. The stainless steel precast plate is provided with four second screw holes that cooperate with the four first screw holes on the handrail base plate. The base fixing component passes through the four first screw holes on the handrail base plate and the four second screw holes on the stainless steel precast plate in sequence and is then fixed to the stainless steel precast plate.
8. The installation structure for fixing barrier-free handrails according to claim 7, characterized in that: The stainless steel precast plate is made of 304 stainless steel, the thickness of the stainless steel precast plate is 5mm, and the size of the stainless steel precast plate is 200×400mm.
9. The installation structure for fixing barrier-free handrails according to claim 1, characterized in that: The stainless steel precast slab is provided with several bolt holes that cooperate with several special fasteners. The several special fasteners pass through the several bolt holes of the stainless steel precast slab to anchor the stainless steel precast slab to the aerated concrete block wall.