An arc-shaped railing
By using a plug-in and slot-connecting structure and multi-stage polishing, combined with fixed posts and reinforced supports, the problem of joints in curved railings has been solved, achieving seamless connection and a high-end decorative effect.
Patent Information
- Application Number
- CN202610447716.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-07
- Publication Date
- 2026-06-19
AI Technical Summary
The existing curved railings have obvious seams due to welding and bolting, which affects the visual aesthetics and structural stability, making it difficult to meet the needs of high-end decorative scenarios.
It adopts a snap-fit structure with insert plates and slots, combined with screw fixation, and uses various types of abrasives and polishing agents to treat the weld seams. It also forms a stable structure through fixed columns and reinforced supports.
The weld seams are concealed, enhancing connection strength and overall smoothness, meeting the visual and structural requirements of high-end decorative scenarios.
Smart Images

Figure CN122236248A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of railing technology, and in particular to an arc-shaped railing. Background Technology
[0002] In existing technologies, curved railings are typically constructed by joining multiple sections of rods or plates using welding, bolting, or other methods. This inevitably leaves noticeable weld seams or joints on the railing surface. These seams not only disrupt the integrity and continuity of the railing surface, affecting its visual appeal, but also easily lead to structural weakening due to stress concentration or corrosion during long-term use, increasing maintenance costs. Furthermore, noticeable seams limit the application of curved railings in high-end decorative settings, making it difficult to meet the high standards of integrated component decoration and surface integrity required by modern architecture. Therefore, providing a curved railing structure without noticeable seams, with a smooth overall surface and strong decorative appeal, has become a pressing technical problem to be solved in this field. Summary of the Invention
[0003] In view of the defects existing in the prior art, this application provides an installation method for curved railings to solve the technical problems of obvious seams and poor surface smoothness in the prior art.
[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solution: An arc-shaped railing includes a left side railing and a right side railing, both made of metal. A left handrail is located at the top of the left side railing, and a right handrail is located at the top of the right side railing. Hanging plates are spaced apart at the bottom of both the left and right sides railings. An insert plate is located at the right end of the left handrail, extending along the direction of the left handrail. A slot matching the insert plate is located at the left end of the right handrail, with a threaded hole on the lower surface of the slot. When the insert plate is inserted into the slot, the left and right sides railings connect to form an arc. After the insert plate is inserted into the slot, a screw passes through the threaded hole to secure the insert plate within the slot. The right ends of the left and right sides railings are welded together. The hanging plates are fixedly connected to the outer surface of the railing. Buckles are attached to the outer surface of the hanging plates. Vertically positioned fixing posts are located on the left side of the left side railing and the right side of the right side railing. The left end of the left side railing is fixedly connected to the fixing post, and the right end of the right side railing is fixedly connected to the fixing post.
[0005] In one implementation, when welding the left and right side rails together, fixed spot welding is first used, followed by segmented welding. The welding current is 240 amps, and the weld points are stacked at 1.5 mm intervals. Each 30 mm long weld is cooled before further welding.
[0006] In one implementation, after the left and right side panels are welded together, the welded joints need to be finely ground with abrasives No. 60, No. 80, No. 120, No. 240, No. 320, No. 400 and No. 600 in sequence, then coarsely polished with 800-grit polishing compound, and finally finely polished with 1200-grit and 4000-grit polishing compounds.
[0007] In one embodiment, the beam is an arc-shaped steel beam, the hanging plate is bolted to the beam, and the buckle is a "[" shaped stainless steel buckle that covers the surface of the hanging plate when it is snapped onto the hanging plate.
[0008] In one embodiment, the fixed column includes a steel column 701, with connecting layers spaced at intervals along the height of the steel column. The connecting layers are arranged around the steel column and are vertically fixed to the steel column. An aluminum honeycomb composite panel is vertically fixed to the outer end of the connecting layer. The height of the aluminum honeycomb composite panel is the same as the height of the steel column. The aluminum honeycomb composite panels at the outer end of the connecting layer are connected left and right to form the surface of the fixed column.
[0009] In one embodiment, the connecting layer includes multiple reinforcing supports and multiple angle steels. The multiple reinforcing supports are arranged circumferentially along the steel column. The inner end of the reinforcing support is vertically fixed to the steel column, and the outer end of the reinforcing support is fixed with angle steels. The angle steels are parallel to the horizontal plane. The angle steels at the outer ends of the reinforcing supports are connected end to end to form a frame for fixing the column. The aluminum honeycomb composite panel is vertically fixed to the angle steels.
[0010] In one embodiment, the reinforcing support is a square tube, and the reinforcing support includes reinforcing horizontal braces perpendicular to the sidewall of the steel column and reinforcing diagonal braces perpendicular to the sidewall of the steel column.
[0011] In one embodiment, the left side of the left column 1 is provided with a folded edge, and the right side of the right column is provided with a folded edge. The folded edge of the left column is fixedly connected to the fixed post, and the folded edge of the right column is fixedly connected to the fixed post.
[0012] In one embodiment, a connecting plate extends outward from the end of the left side panel folded edge, and a connecting plate extends outward from the end of the right side panel folded edge. A connecting plate is fixed on the side of the steel column facing the left or right side panel. The connecting plate at the end of the left side panel is fixedly connected to the connecting plate on the steel column by bolts, and the connecting plate at the end of the right side panel is fixedly connected to the connecting plate on the steel column by bolts.
[0013] Compared with the prior art, this application has at least the following beneficial effects: This application uses insert plates and slots to snap together at the top of the left and right side rails, and then screws to fix the insert plates and slots again below the top handrail. The connection point between the hanging plate and the beam is hidden by the buckle plate. When welding the left and right side rails, appropriate welding parameters are selected. After welding, the weld is treated with grinding and polishing agents of various types of abrasives. This not only strengthens the connection strength of the curved railing, but also hides the joints and fixing points of the left and right side rails, ensuring the overall smoothness of the curved railing. This application also provides fixed posts at both ends of the curved railing, and the shape of the fixed posts can be formed by strengthening the support and the use of angle steel to form various shapes. This allows the fixed posts to be installed in limited space and size conditions while ensuring visual effect, so as to ensure the stability of the curved railing. Attached Figure Description
[0014] Figure 1 This is a top view of the arc-shaped railing in the embodiment of this application; Figure 2 This is a front view of the arc-shaped railing in an embodiment of this application; Figure 3 yes Figure 2 Enlarged view of circle A in the middle; Figure 4 yes Figure 3 Side view in the middle; Figure 5 yes Figure 4 Enlarged view of circle B in the image; Figure 6 This is the cross-section of the left fixed column in the embodiment of this application; Figure 7 This is the cross-section of the right-side fixed column in the embodiment of this application; Figure 8 This is a schematic diagram of the connection between the steel column and the left side railing in an embodiment of this application. Attached reference numerals: 1. Left sidebar; 101. Left handrail; 2. Right sidebar; 201. Right handrail; 3. Hanging plate; 4. Buckle plate; 6. Steel beam; 7. Fixed column; 701. Steel column; 702. Reinforcing support; 703. Angle steel; 704. Aluminum honeycomb composite panel; 8. Beam; 9. Connecting plate. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present invention.
[0016] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.
[0017] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms and should not be construed as indicating or implying relative importance. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."
[0018] In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical connection or internal connection between two components. They can be direct connection or indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0019] To better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.
[0020] This embodiment provides an arc-shaped railing, as shown in the attached image. Figure 1 - Appendix Figure 7 As shown, it includes a left sidebar 1 and a right sidebar 2, both made of metal. A left armrest 101 is located at the top of the left sidebar 1, and a right armrest 102 is located at the top of the right sidebar 2. Hanging plates 3 are spaced apart at the bottom of both the left and right sidebars 1 and 2. An insert plate 101 is located at the right end of the left armrest 101, extending along the direction of the left armrest 101. A slot matching the insert plate is located at the left end of the right armrest 201, with a threaded hole on the lower surface of the slot. When the insert plate is inserted into the slot, the left sidebar... 1 and 2 on the left and right sides are connected to form an arc. To ensure a stable connection between the left and right sides, after the insert plate is inserted into the slot, screws are passed through the threaded holes to fix the insert plate in the slot. The right end of the left side column 1 and the left end of the right side column 2 are welded together. The hanging plate 3 is fixedly connected to the outer surface of the beam 8. The outer surface of the hanging plate 3 is fitted with a buckle plate 4. Vertical fixing posts 7 are set on the left side of the left side column 1 and the right side of the right side column 2. The left end of the left side column 1 is fixedly connected to the fixing post 7, and the right end of the right side column 2 is fixedly connected to the fixing post 7.
[0021] To ensure the overall smoothness of the curved railing surface, the welding connection between the left side railing 1 and the right side railing 2 was achieved by first fixing the spot welds, then welding segment by segment. The welding current was 240 amps, and the weld points were overlapped by 1.5 mm at a time. Each 30 mm long weld was allowed to cool before further welding to minimize the chance of profile deformation. After the left side railing 1 and the right side railing 2 were welded together, the welded area was successively ground with 60, 80, 120, 240, 320, 400, and 600 abrasives, followed by coarse polishing with 800-grit polishing compound, and finally fine polishing with 1200-grit and 4000-grit polishing compounds. Through this welding and grinding process, the weld seams were concealed as much as possible.
[0022] In this embodiment, beam 8 is an arc-shaped steel beam, and hanging plate 3 is bolted to beam 8. Buckle plate 4 is a "[" shaped stainless steel buckle plate, which covers the surface of hanging plate 3 when it is snapped onto hanging plate 3. A folded edge is provided on the left side of left railing 1, and a folded edge is provided on the right side of right railing 2. The folded edge of left railing 1 is fixedly connected to fixing post 7, and the folded edge of right railing 2 is fixedly connected to fixing post 7. The setting of fixing post 7 can improve the stability of the arc-shaped railing.
[0023] like Figure 6 and Figure 7 As shown, the fixed column 7 includes a steel column 701. Connecting layers are spaced along the height of the steel column 701, surrounding it and vertically fixed to it. An aluminum honeycomb composite panel 704 is vertically fixed to the outer end of each connecting layer. The height of the aluminum honeycomb composite panel 704 is the same as the height of the steel column 701. The aluminum honeycomb composite panels 704 at the outer ends of the connecting layers are connected left and right to form the surface of the fixed column 7. The connecting layers include multiple reinforcing supports 702 and multiple angle steels 703. The multiple reinforcing supports 702 are arranged circumferentially along the steel column 701. The inner ends of the reinforcing supports 702 are vertically fixed to the steel column 701, and the outer ends of the reinforcing supports 702 are fixed with angle steels 703. The angle steels 703 are parallel to the horizontal plane, and the angle steels at the outer ends of the reinforcing supports 702 are connected end-to-end to form the frame of the fixed column 7. The aluminum honeycomb composite panel 704 is vertically fixed to the angle steel 703. The reinforcing support 702 is a square tube, and includes reinforcing horizontal braces perpendicular to the sidewall of the steel column 7 and oblique reinforcing diagonal braces perpendicular to the sidewall of the steel column 7. Through the cooperation of the reinforcing support 702 and the angle steel 703, fixed columns 7 of various shapes and sizes can be formed, thus enabling the installation of fixed columns 7 within limited space and size conditions while ensuring visual appeal, thereby guaranteeing the stability of the curved railing.
[0024] like Figure 8As shown, a connecting plate 9 extends outward from the end of the folded edge of the left column 1, and a connecting plate 9 extends outward from the end of the folded edge of the right column 1. A connecting plate 9 is fixed on the side of the steel column 10 facing the left column 1 or the right column 2. The connecting plate 9 at the end of the left column 1 is fixedly connected to the connecting plate on the steel column 10 by bolts, and the connecting plate 9 at the end of the right column 2 is fixedly connected to the connecting plate 9 on the steel column 10 by bolts.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.
Claims
1. An arc-shaped railing, characterized in that, It includes a left and right sidebar, both made of metal. The left sidebar has a left handrail at its top, and the right sidebar has a right handrail at its top. Hanging plates are spaced apart at the bottom of both the left and right sidebars. An insert plate is located at the right end of the left handrail, extending along its length. A slot matching the insert plate is located at the left end of the right handrail, with a threaded hole on its lower surface. When the insert plate is inserted into the slot, the left and right sidebars connect in an arc. After insertion, screws pass through the threaded holes to secure the insert plate. The right ends of the left and right sidebars are welded together. The hanging plates are fixedly connected to the outer surface of the beam, and clips are attached to the outer surface of the hanging plates. Vertically positioned fixing posts are located on the left side of the left sidebar and the right side of the right sidebar. The left end of the left sidebar is fixedly connected to the fixing post, and the right end of the right sidebar is fixedly connected to the fixing post.
2. The method for installing an arc-shaped railing according to claim 1, characterized in that, When welding the left and right side columns, first use fixed spot welding, then weld in sections step by step. The welding current is 240 amps. The weld points in each section are stacked at 1.5 mm. After each 30 mm long weld has cooled down, the weld is then welded.
3. The method for installing an arc-shaped railing according to claim 2, characterized in that, After the left and right side panels are welded together, the welded areas need to be finely ground with grinding wheels No. 60, No. 80, No. 120, No. 240, No. 320, No. 400 and No. 600 in sequence, then coarsely polished with 800 grit polishing compound, and finally finely polished with 1200 grit and 4000 grit polishing compound.
4. The method for installing an arc-shaped railing according to claim 1, characterized in that, The beam is an arc-shaped steel beam, the hanging plate is bolted to the beam, and the buckle is a "[" shaped stainless steel buckle that covers the surface of the hanging plate when it is snapped on.
5. The method for installing an arc-shaped railing according to claim 1, characterized in that, The fixed column includes a steel column 701, with connecting layers spaced at intervals along the height of the steel column. The connecting layers are arranged around the steel column and are vertically fixed to the steel column. An aluminum honeycomb composite panel is vertically fixed to the outer end of the connecting layer. The height of the aluminum honeycomb composite panel is the same as the height of the steel column. The aluminum honeycomb composite panels at the outer end of the connecting layer are connected left and right to form the surface of the fixed column.
6. The method for installing an arc-shaped railing according to claim 5, characterized in that, The connecting layer includes multiple reinforcing supports and multiple angle steels. The multiple reinforcing supports are arranged around the circumference of the steel column. The inner end of the reinforcing support is vertically fixed to the steel column, and the outer end of the reinforcing support is fixed with angle steels. The angle steels are parallel to the horizontal plane. The angle steels at the outer ends of the reinforcing supports are connected end to end to form a frame for fixing the column. The aluminum honeycomb composite panel is vertically fixed on the angle steels.
7. The method for installing an arc-shaped railing according to claim 6, characterized in that, The reinforcing support is a square tube, and includes reinforcing horizontal braces perpendicular to the sidewall of the steel column and reinforcing diagonal braces perpendicular to the sidewall of the steel column.
8. The method for installing an arc-shaped railing according to claim 6, characterized in that, The left side of the left column 1 has a folded edge, and the right side of the right column has a folded edge. The folded edge of the left column is fixedly connected to the fixed post, and the folded edge of the right column is fixedly connected to the fixed post.
9. The method for installing an arc-shaped railing according to claim 6, characterized in that, A connecting plate extends outward from the end of the left side panel's folded edge, and a connecting plate extends outward from the end of the right side panel's folded edge. A connecting plate is fixed to the side of the steel column facing either the left or right side panel. The connecting plate at the end of the left side panel is fixedly connected to the connecting plate on the steel column by bolts, and the connecting plate at the end of the right side panel is fixedly connected to the connecting plate on the steel column by bolts.