Detachable metal railing
Patent Information
- Application Number
- CN202522304693.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-10-30
AI Technical Summary
[0003]现有的金属栏杆一旦安装完成,难以拆卸,给后续的局部维修、更换或空间改造带来极大不便,整体式的栏杆体积庞大,运输和搬运成本高,且容易在运输过程中发生碰撞变形,无法根据使用需求的变化(如改变护栏布局、调整高度等)进行灵活调整,局部损坏往往需要整体切割、焊接,维修工艺复杂,成本高昂
[0015] 1. This detachable metal railing uses hex bolts to modularly connect the first and second horizontal bars to the posts, eliminating the need for welding. Installation and disassembly can be completed quickly using ordinary tools, greatly improving construction efficiency. It facilitates local maintenance, replacement, and space modification, reduces transportation and handling costs, and enhances the railing's adaptability and reusability. Any damaged component can be replaced individually without damaging the overall structure, significantly reducing maintenance costs and difficulty. The protective components effectively prevent foreign objects from entering the posts, avoiding blockages and corrosion, while also preventing injury from sharp post tips.
Smart Images

Figure CN224769715U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building decoration and protective facilities technology, specifically a detachable metal railing. Background Technology
[0002] Metal railings are building components made of metal materials (such as steel, aluminum alloy, stainless steel, etc.), typically composed of uprights, horizontal bars, and other parts. They are mainly installed along the edges of balconies, stairs, platforms, corridors, and other areas. Their core function is to provide safety protection, preventing people from falling from heights or accidentally falling, while also serving to divide space and enhance aesthetics.
[0003] Once installed, existing metal railings are difficult to disassemble, causing great inconvenience for subsequent partial repairs, replacements, or space modifications. The integral railings are bulky, with high transportation and handling costs, and are prone to collisions and deformation during transportation. They cannot be flexibly adjusted according to changes in usage needs (such as changing the layout of the railings or adjusting the height). Partial damage often requires overall cutting and welding, which is a complex and costly repair process.
[0004] Therefore, the market urgently needs a metal railing structure that is reliable in connection, easy to assemble and disassemble, reusable, and highly adaptable. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a detachable metal railing that has the advantages of reliable connection and convenient assembly and disassembly, thus solving the problems mentioned in the background art.
[0006] This utility model provides the following technical solution: a detachable metal railing, including a first horizontal bar, a second horizontal bar, and a post. Several connecting components are provided between the first and second horizontal bars to connect them. Both ends of the first and second horizontal bars are welded with grooved supports. The top and bottom of one side of the post are provided with hexagonal socket head cap screws to fix the grooved supports. Nuts are threaded onto the threads of the hexagonal socket head cap screws. A mounting plate is welded to the bottom of the post, and a protective component to prevent foreign objects from entering is provided at the top of the post.
[0007] As a preferred technical solution of this utility model, the connecting assembly includes a connecting rod, a baffle plate is fixedly provided at the top of the connecting rod to limit its top position, a rod sleeve is sleeved at the bottom of the connecting rod, the bottom end of the rod sleeve is fixedly connected to the top of the crossbar, a flat opening is provided on one side of the rod sleeve, a through hole is provided in the middle of the flat opening, a connecting screw is inserted through the through hole, and a threaded groove is provided at the bottom of the connecting rod to be threadedly connected to the connecting screw.
[0008] As a preferred technical solution of this utility model, the top end of the crossbar 2 is provided with a plurality of countersunk holes 1, the baffle is located inside the countersunk holes 1, the bottom end of the crossbar 2 is provided with an installation hole for inserting and connecting with the connecting rod, the inside of the countersunk holes 1 is fitted with a sealing gasket 1 that is sleeved with the connecting rod, and the inside of the installation hole is fitted with a sealing gasket 2 that is sleeved with the connecting rod.
[0009] As a preferred technical solution of this utility model, the protective component includes a plug, a stopper is fixedly provided at the bottom end of the plug, a sealing strip is provided at the top of the stopper, the stopper is engaged with the top of the column, the top and bottom ends of the plug are both provided with rounded corners, an ear plate is fixedly provided on one side of the bottom end of the plug, and a positioning screw is inserted through the ear plate.
[0010] As a preferred technical solution of this utility model, the top of the column is provided with a limiting groove corresponding to the sealing strip, and the top of one side of the column is provided with a notch that engages with the ear plate. The middle of the notch is provided with a threaded groove that is threadedly connected to the positioning screw.
[0011] As a preferred embodiment of this utility model, one side of the grooved support is provided with a through hole two for inserting and connecting with an internal hexagon bolt, and the other side of the grooved support is provided with a countersunk hole two for installing the internal hexagon bolt, with the bolt head of the internal hexagon bolt located inside the countersunk hole two.
[0012] As a preferred technical solution of this utility model, a bolt hole is provided on the top of one side and the bottom of the other side of the column for inserting and connecting with an internal hexagon bolt. A sealing ring is engaged with the internal hexagon bolt inside the bolt hole.
[0013] As a preferred technical solution of this utility model, a bolt hole 2 is provided at the top and bottom of the other side of the column, and a sealing ring 2 is engaged inside the bolt hole 2.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. This detachable metal railing uses hex bolts to modularly connect the first and second horizontal bars to the posts, eliminating the need for welding. Installation and disassembly can be completed quickly using ordinary tools, greatly improving construction efficiency. It facilitates local maintenance, replacement, and space modification, reduces transportation and handling costs, and enhances the railing's adaptability and reusability. Any damaged component can be replaced individually without damaging the overall structure, significantly reducing maintenance costs and difficulty. The protective components effectively prevent foreign objects from entering the posts, avoiding blockages and corrosion, while also preventing injury from sharp post tips.
[0016] 2. This detachable metal railing improves overall stability and protection by setting connecting components between the horizontal bars, preventing people from falling through the space between the horizontal bars. It has a simple structure, reliable connection, and allows for the installation and disassembly of any set of connecting components. Attached Figure Description
[0017] Figure 1 This is one of the structural schematic diagrams of this utility model;
[0018] Figure 2 This is the second structural schematic diagram of the present invention;
[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the connecting component of this utility model;
[0021] Figure 5 This utility model Figure 4 A magnified structural diagram at point A;
[0022] Figure 6 This is a schematic diagram of the structure of the protective component of this utility model;
[0023] Figure 7 This is a schematic diagram of the structure of the crossbar 2 of this utility model.
[0024] In the diagram: 1. Crossbar 1; 2. Crossbar 2; 3. Connecting assembly; 301. Connecting rod; 302. Rod sleeve; 303. Connecting screw; 304. Flat end; 305. Through hole 1; 306. Threaded groove 1; 4. Groove support; 5. Column; 6. Limiting groove; 7. Protective assembly; 701. Plug; 702. Stopper; 703. Sealing strip; 704. Rounded corner; 705. Ear plate; 706. Positioning screw; 8. Mounting plate; 9. Countersunk hole 1; 10. Mounting hole; 11. Sealing gasket 1; 12. Sealing gasket 2; 13. Socket head bolt; 14. Nut; 15. Bolt hole 1; 16. Sealing ring 1; 17. Through hole 2; 18. Countersunk hole 2; 19. Bolt hole 2; 20. Sealing ring 2; 21. Notch; 22. Threaded groove 2; 307. Baffle. Detailed Implementation
[0025] 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.
[0026] Please see Figures 1-7 The detachable metal railing includes a horizontal bar 1, a horizontal bar 2, and a post 5. Several connecting components 3 are provided between the horizontal bar 1 and the horizontal bar 2 to improve the overall stability and protection capabilities, preventing people from falling through the space between the horizontal bar 1 and the horizontal bar 2. The two ends of the horizontal bar 1 and the two ends of the horizontal bar 2 are welded with grooved supports 4. The top and bottom of one side of the post 5 are provided with hexagonal socket head cap screws 13, and the threaded part of the hexagonal socket head cap screws 13 is threaded with nuts 14. The bottom end of the post 5 is welded with a mounting plate 8 to fix the railing as a whole. The top of the post 5 is provided with a protective component 7 to prevent foreign objects from entering.
[0027] In this embodiment, preferably, the connecting assembly 3 includes a connecting rod 301. A baffle 307 is fixedly provided at the top of the connecting rod 301 for limiting its position. A rod sleeve 302 is fitted onto the bottom of the connecting rod 301. The bottom end of the rod sleeve 302 is fixedly connected to the top of the crossbar 1. A flat opening 304 is provided on one side of the rod sleeve 302. A through hole 305 is provided in the middle of the flat opening 304. A connecting screw 303 is inserted through the through hole 305. A threaded groove 306 is provided at the bottom of the connecting rod 301 for threaded connection with the connecting screw 303. The wire 303 cooperates with the sleeve 302 to fix the bottom of the connecting rod 301, which can maintain the firmness and stability between the bottom of the connecting rod 301 and the crossbar 1. The top of the crossbar 2 has several countersunk holes 9. The baffle 307 is located inside the countersunk holes 9. The bottom of the crossbar 2 has a mounting hole 10 for inserting and connecting with the connecting rod 301. The inside of the countersunk holes 9 is fitted with a sealing gasket 11, and the inside of the mounting hole 10 is fitted with a sealing gasket 12. Both are sleeved with the connecting rod 301 to achieve a sealing effect.
[0028] In this embodiment, preferably, the protective component 7 includes a plug 701, a stopper 702 fixedly provided at the bottom end of the plug 701, a sealing strip 703 provided at the top of the stopper 702, the stopper 702 engaging with the top of the column 5, the top end of the plug 701 and the bottom end of the stopper 702 both have rounded corners 704, which facilitates installation and can prevent injury to the human body, an ear plate 705 fixedly provided on one side of the bottom end of the plug 701, a positioning screw 706 inserted through the ear plate 705, a limiting groove 6 corresponding to the sealing strip 703 is opened at the top end of the column 5, a notch 21 engaging with the ear plate 705 is opened at the top of one side of the column 5, and a threaded groove 22 is provided in the middle of the notch 21 for threaded connection with the positioning screw 706;
[0029] In this embodiment, preferably, a through hole 17 is provided on one side of the slotted support 4 for inserting and connecting with the internal hexagon bolt 13, and a countersunk hole 18 is provided on the other side of the slotted support 4 for installing the internal hexagon bolt 13. The bolt head of the internal hexagon bolt 13 is located inside the countersunk hole 18, which can prevent the bolt head of the internal hexagon bolt 13 from protruding out of the slotted support 4.
[0030] In this embodiment, preferably, bolt holes 15 are provided on the top and bottom of one side of the column 5 for inserting hexagonal socket bolts 13. A sealing ring 16 is engaged with the hexagonal socket bolt 13 inside the bolt hole 15. Bolt holes 29 are provided on the top and bottom of the other side of the column 5. Adjacent crossbars 11 and 22 can be installed through bolt holes 29. A sealing ring 20 is engaged inside the bolt hole 29. Sealing rings 16 and 20 are used to enhance the sealing and prevent rainwater from penetrating.
[0031] During the pre-installation inspection phase, confirm that all components are complete, including crossbar 1, crossbar 2, column 5, connecting assembly 3, slotted support 4, protective assembly 7, hex bolt 13, nut 14, etc., and prepare common installation tools such as ordinary hex wrenches and screwdrivers.
[0032] Fix the mounting plate 8 at the bottom of the column 5 to the ground or foundation structure by means of expansion bolts or welding. Align the plug 702 at the bottom of the plug 701 with the top of the column 5, so that the sealing strip 703 is inserted into the limiting groove 6. Insert the ear plate 705 into the notch 21 at the top of the column 5. Screw the positioning screw 706 into the threaded groove 22 to fix it, ensuring that the plug 701 is installed firmly.
[0033] The two ends of the crossbar 1 and crossbar 2 have been welded with slotted supports 4. Align the countersunk hole 2 18 of the slotted support 4 with the bolt hole 1 15 on the column 5. Insert the hexagon socket bolt 13 from the countersunk hole 2 18, through the bolt hole 1 15 and the sealing ring 1 16, screw on the nut 14 and tighten it to ensure that the crossbar 1 and crossbar 2 are firmly connected to the column 5.
[0034] Insert sealing gasket 12 and sealing gasket 11 into mounting hole 10 and countersunk hole 9 respectively. Insert the bottom of connecting rod 301 into mounting hole 10 at the bottom of crossbar 2. The top baffle 307 is inserted into countersunk hole 9 at the top of crossbar 2 to ensure a seal. The bottom of connecting rod 301 can be located inside the sleeve 302, so that its flat end 304 is aligned. Use connecting screw 303 to pass through through hole 305 and screw it into thread groove 306 at the bottom of connecting rod 301. Tighten to fix connecting rod 301, which can improve overall stability and protection.
[0035] If a component is damaged, simply remove the corresponding hex socket head cap screw 13 or connecting screw 303 and replace it with a new one. After disassembly, all parts can be stored separately for easy transportation and reinstallation.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A detachable metal railing comprising a horizontal bar 1, a horizontal bar 2 and a vertical post 5, characterized in that: Several connecting components (3) are provided between the first crossbar (1) and the second crossbar (2). Both ends of the first crossbar (1) and the second crossbar (2) are welded with slotted supports (4). The top of one side and the bottom of one side of the column (5) are provided with socket head cap screws (13) to fix the slotted supports (4). The threaded part of the socket head cap screws (13) is threaded with nuts (14). The bottom end of the column (5) is welded with a mounting plate (8). The top end of the column (5) is provided with a protective component (7) to prevent foreign objects from entering.
2. The demountable metal balustrade of claim 1, wherein: The connecting assembly (3) includes a connecting rod (301), the top of the connecting rod (301) is fixedly provided with a baffle (307) to limit its top position, the bottom of the connecting rod (301) is provided with a rod sleeve (302), the bottom end of the rod sleeve (302) is fixedly connected to the top end of the crossbar (1), one side of the rod sleeve (302) is provided with a flat opening (304), the middle of the flat opening (304) is provided with a through hole (305), the through hole (305) is inserted and connected with a connecting screw (303), and the bottom of the connecting rod (301) is provided with a threaded groove (306) that is threadedly connected to the connecting screw (303).
3. The demountable metal balustrade of claim 2, wherein: The top of the second crossbar (2) is provided with several countersunk holes (9), the baffle (307) is located inside the countersunk holes (9), the bottom of the second crossbar (2) is provided with an installation hole (10) that is inserted and connected to the connecting rod (301), the inside of the countersunk holes (9) is fitted with a sealing gasket (11) that is sleeved with the connecting rod (301), and the inside of the installation hole (10) is fitted with a sealing gasket (2) that is sleeved with the connecting rod (301).
4. The demountable metal railing according to claim 1, wherein: The protective component (7) includes a plug (701), a stopper (702) is fixedly provided at the bottom end of the plug (701), a sealing strip (703) is provided at the top of the stopper (702), the stopper (702) is engaged with the top of the column (5), the top end of the plug (701) and the bottom end of the stopper (702) are both provided with rounded corners (704), an ear plate (705) is fixedly provided on one side of the bottom end of the plug (701), and a positioning screw (706) is inserted through the ear plate (705).
5. The demountable metal balustrade of claim 4, wherein: The top of the column (5) is provided with a limiting groove (6) corresponding to the sealing strip (703), and the top of one side of the column (5) is provided with a notch (21) that engages with the ear plate (705). The middle part of the notch (21) is provided with a threaded groove (22) that is threaded to the positioning screw (706).
6. The demountable metal railing according to claim 1, wherein: The grooved support (4) has a through hole (17) on one side for inserting and connecting with the internal hexagon bolt (13), and a countersunk hole (18) for installing the internal hexagon bolt (13) on the other side. The head of the internal hexagon bolt (13) is located inside the countersunk hole (18).
7. The demountable metal railing according to claim 1, wherein: The top of one side and the bottom of the other side of the column (5) are provided with bolt holes (15) for inserting and connecting with the internal hexagon bolt (13). The bolt holes (15) are fitted with sealing rings (16) that are sleeved with the internal hexagon bolt (13).
8. The demountable metal railing according to claim 1, wherein: The top and bottom of the other side of the column (5) are provided with bolt holes 2 (19), and the inside of the bolt holes 2 (19) is fitted with sealing ring 2 (20).