Guardrail stair accessory with pipe fitting penetrating structure

By using a one-piece stamped pipe-type structure for railings and stair accessories, and employing multi-point welding connections, the problems of numerous parts, low installation efficiency, and easy loosening in existing technologies are solved, achieving efficient installation and high-strength connections, thus improving safety and durability.

CN224092874UActive Publication Date: 2026-04-07JIANGMEN YUCHUANG INTELLIGENT CONTROL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing stair railing accessories mostly use bolt connections or simple plug-in connections, resulting in a large number of parts, complicated processing procedures, low installation efficiency, and easy loosening and displacement after long-term use, posing safety hazards.

Method used

The installation pipe, pipe cover, connecting pipe sleeve, pipe sleeve cover, and fixing ring are formed by one-piece stamping and are connected by multi-point welding to form a closed and stable structure, which enhances the connection firmness and resistance to external deformation.

Benefits of technology

It improves installation efficiency, reduces production costs, enhances the safety and durability of the connection between the handrail and the stairs, and ensures the stability and service life of the structure.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224092874U_ABST
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Abstract

The utility model discloses a guardrail stair accessory with a pipe penetrating structure, which comprises a mounting penetrating pipe, a pipe penetrating cover plate is mounted at the top of the mounting penetrating pipe, a connecting pipe sleeve is mounted at the inner lower part of the mounting penetrating pipe, a pipe sleeve cover plate is arranged at the bottom of the connecting pipe sleeve, and a fixing ring piece is mounted at the bottom of the mounting penetrating pipe. The fixing ring piece is arranged on the outer side of the connecting pipe sleeve and the outer side of the pipe sleeve cover piece in a sleeved mode, the pipe penetrating cover piece is welded and fixed to the top of the installing penetrating pipe, the fixing ring piece is welded and fixed to the bottom of the installing penetrating pipe, and meanwhile the fixing ring piece is welded and fixed to the outer side of the connecting pipe sleeve and the outer side of the pipe sleeve cover piece, so that multi-point welding connection is formed. The guardrail stair accessory with the pipe penetrating structure is fixed through multi-point welding, forms a closed stable structure, can effectively resist external force deformation, guarantees safety and durability of a connecting part of a handrail and a stair, is integrally formed in a punching mode, is high in manufacturing efficiency, reduces machining procedures, and reduces production cost.
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Description

Technical Field

[0001] This utility model belongs to the technical field of guardrail stair accessories, specifically relating to a guardrail stair accessory with a through-pipe structure. Background Technology

[0002] As people's requirements for building safety and functionality continue to increase, railings, as an important protective structure in areas such as staircases and balconies, are receiving more and more attention. Staircase railings, as a crucial component connecting the handrail to the main staircase, directly affect the stability and safety performance of the overall railing system due to the rationality of their structural design, ease of installation, and the robustness of their connections.

[0003] Currently, most stair railing accessories widely used in the market are assembled using bolt connections or simple plug-in methods, which have many shortcomings. On the one hand, traditional structural components are usually assembled from multiple parts, with a large number of parts and complicated processing procedures. Multiple alignment and fixing are required during installation, resulting in low assembly efficiency and high labor costs. On the other hand, due to the large number of connection points, they are prone to loosening, displacement, or even falling off during long-term use due to uneven stress or external impacts, which can lead to safety hazards and affect the overall stability and service life of the railing.

[0004] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0005] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide a pipe-insertion structure railing stair accessory to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pipe-insertion structure railing stair accessory, comprising an installation pipe, a pipe-insertion cover plate installed at the top of the installation pipe, a connecting pipe sleeve installed at the lower inner part of the installation pipe, a pipe sleeve cover plate at the bottom of the connecting pipe sleeve, and a fixing ring installed at the bottom of the installation pipe. The fixing ring is sleeved on the outside of the connecting pipe sleeve and the pipe sleeve cover plate. The pipe-insertion cover plate is welded and fixed to the top of the installation pipe, and the fixing ring is welded and fixed to the bottom of the installation pipe. Simultaneously, the fixing ring is welded and fixed to the outside of the connecting pipe sleeve and the pipe sleeve cover plate, forming a multi-point welded connection.

[0007] Furthermore, the installation pipe, the pipe cover, the connecting sleeve, the sleeve cover, and the fixing ring are all integrally stamped structures.

[0008] Furthermore, the top edge of the mounting tube is provided with a cover plate welding edge, and the edge of the tube cover plate is welded and fixed to the cover plate welding edge.

[0009] Furthermore, the lower end of the installation tube is provided with a tube sleeve connection part, the connecting tube sleeve is connected in the tube sleeve connection part, the edge of the tube sleeve cover is welded and fixed to the bottom edge of the connecting tube sleeve, the top edge of the fixing ring is welded and fixed to the bottom edge of the installation tube, and the inner side of the fixing ring is welded and fixed to the bottom edge of the connecting tube sleeve and the edge of the tube sleeve cover, respectively.

[0010] Furthermore, the mounting tube has symmetrical mounting holes on its left and right sides, and a fixing hole on its upper front side.

[0011] Furthermore, the lower front side of the mounting pipe has a pipe sleeve perforation, and the upper side of the connecting pipe sleeve has a recessed annular connecting ring groove, with the pipe sleeve perforation and the connecting ring groove corresponding to each other.

[0012] Furthermore, the tube cover is an arc-shaped cover.

[0013] Furthermore, the installation conduit is a hollow cylindrical conduit.

[0014] The present invention has the following advantages: the installation pipe, the pipe cover, the connecting pipe sleeve, the pipe sleeve cover, and the fixing ring are all integrally stamped structures. The pipe cover is welded and fixed to the top of the installation pipe, and the fixing ring is welded and fixed to the bottom of the installation pipe. At the same time, the fixing ring is welded and fixed to the outside of the connecting pipe sleeve and the pipe sleeve cover. The pipe fitting structure of the railing stair accessory of the present invention is fixed by multi-point welding to form a closed and stable structure, which can effectively resist external deformation and ensure the safety and durability of the connection between the handrail and the stair. The integral stamping and forming process has high manufacturing efficiency, reduces processing steps, and lowers production costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0016] Figure 2 This is an exploded view of the overall front structure of this utility model.

[0017] Figure 3 This is a three-dimensional exploded view of the overall structure of this utility model.

[0018] Figure 4 This is a front structural diagram of the present invention.

[0019] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure at point AA.

[0020] Reference numerals: 10 for mounting pipe; 20 for pipe cover; 30 for connecting pipe sleeve; 40 for pipe sleeve cover; 50 for fixing ring; 11 for cover welding edge; 12 for pipe sleeve connection; 13 for mounting hole; 14 for fixing hole; 15 for pipe sleeve hole; 31 for connecting ring groove. Detailed Implementation

[0021] like Figures 1 to 5 As shown, a type of railing stair accessory with a through-pipe structure includes an installation through-pipe 10, a through-pipe cover 20 installed on the top of the installation through-pipe 10, a connecting pipe sleeve 30 installed on the lower inner part of the installation through-pipe 10, a pipe sleeve cover 40 provided at the bottom of the connecting pipe sleeve 30, and a fixing ring 50 installed at the bottom of the installation through-pipe 10. The fixing ring 50 is sleeved on the outer side of the bottom of the connecting pipe sleeve 30 and the outer side of the pipe sleeve cover 40. The structure is simple and easy to install.

[0022] In practice, the installation pipe 10, the pipe cover 20, the connecting pipe sleeve 30, the pipe sleeve cover 40, and the fixing ring 50 are all integrally stamped structures, which further improves the connection stability and overall strength between the parts. The structure is compact, the manufacturing cost is low, and the assembly efficiency is high.

[0023] In practical implementation, the pipe cover 20 is an arc-shaped cover, and the mounting pipe 10 is a hollow cylindrical pipe. The top edge of the mounting pipe 10 is provided with a cover welding edge 11. The edge of the pipe cover 20 and the cover welding edge 11 are fixed together by welding, so that the pipe cover 20 is welded and fixed to the top of the mounting pipe 10. This structure is not only simple and convenient to install, but also has strong welding and low processing cost, making it suitable for mass production and standardized manufacturing.

[0024] In practical implementation, the lower end of the installation pipe 10 is provided with a pipe sleeve connection part 12, and the connecting pipe sleeve 30 is connected in the pipe sleeve connection part 12. The edge of the pipe sleeve cover plate 40 is fixed to the bottom edge of the connecting pipe sleeve 30 by welding. The top edge of the fixing ring 50 is fixed to the bottom edge of the installation pipe 10 by welding. The inner side of the fixing ring 50 is fixed to the bottom edge of the connecting pipe sleeve 30 and the edge of the pipe sleeve cover plate 40 by welding, thereby fixing the fixing ring 50 to the bottom of the installation pipe 10. At the same time, the fixing ring 50 is fixed to the outer side of the connecting pipe sleeve 30 and the pipe sleeve cover plate 40, thus forming a multi-point welding connection. This not only firmly welds the fixing ring 50 to the bottom of the installation pipe 10, but also ensures that it is securely covered to the outer side of the connecting pipe sleeve 30 and the pipe sleeve cover plate 40, further improving the structural strength and service life of the pipe fitting.

[0025] In practical implementation, the mounting tube 10 has symmetrical mounting holes 13 on its left and right sides, and a fixing hole 14 is provided on the upper front side of the mounting tube 10. In use, the mounting holes 13 are used to allow the handrail tube to pass through them to form a preliminary positioning structure. Subsequently, fasteners are passed through the fixing holes 14 and connected and fixed with the handrail tube, thereby achieving a stable connection between the mounting tube and the handrail tube.

[0026] In practical implementation, the lower front side of the mounting pipe 10 is provided with a pipe sleeve through hole 15, and the upper side of the connecting pipe sleeve 30 is provided with a circular connecting ring groove 31. The pipe sleeve through hole 15 and the connecting ring groove 31 are correspondingly arranged. In use, the fastener can pass through the pipe sleeve through hole 15 and be embedded in the connecting ring groove 31, thereby further enhancing the connection stability between the mounting pipe 10 and the connecting pipe sleeve 30, effectively preventing the connecting pipe sleeve 30 from loosening or slipping due to external forces, and improving the vibration resistance and service life of the overall structure.

[0027] In summary, the mounting pipe 10, the pipe cover 20, the connecting pipe sleeve 30, the pipe sleeve cover 40, and the fixing ring 50 are all integrally stamped structures. The pipe cover 20 is welded and fixed to the top of the mounting pipe 10, and the fixing ring 50 is welded and fixed to the bottom of the mounting pipe 10. At the same time, the fixing ring 50 is welded and fixed to the outside of the connecting pipe sleeve 30 and the pipe sleeve cover 40. The pipe fitting structure of this utility model for railing stair accessories is fixed by multi-point welding to form a closed and stable structure, which can effectively resist external deformation and ensure the safety and durability of the connection between the handrail and the stair. The integral stamping process has high manufacturing efficiency, reduces processing steps, and lowers production costs.

Claims

1. A type of pipe-insertion structure railing stair accessory, characterized in that, It includes an installation pipe (10), on the top of which is a pipe cover plate (20), and on the lower inner part of which is a connecting pipe sleeve (30). The bottom of the connecting pipe sleeve (30) is provided with a pipe sleeve cover plate (40). The bottom of the installation pipe (10) is provided with a fixing ring (50). The fixing ring (50) is sleeved on the outside of the connecting pipe sleeve (30) and the pipe sleeve cover plate (40). The pipe cover plate (20) is welded and fixed to the top of the installation pipe (10), and the fixing ring (50) is welded and fixed to the bottom of the installation pipe (10). At the same time, the fixing ring (50) is welded and fixed to the outside of the connecting pipe sleeve (30) and the pipe sleeve cover plate (40), forming a multi-point welded connection.

2. The through-pipe structure railing stair accessory according to claim 1, characterized in that, The installation pipe (10), the pipe cover (20), the connecting pipe sleeve (30), the pipe sleeve cover (40), and the fixing ring (50) are all integrally stamped structures.

3. The through-pipe structure railing stair accessory according to claim 1, characterized in that, The top edge of the mounting tube (10) is provided with a cover plate welding edge (11), and the edge of the tube cover plate (20) is welded and fixed to the cover plate welding edge (11).

4. The through-pipe structure railing stair accessory according to claim 1, characterized in that, The lower end of the installation tube (10) is provided with a tube sleeve connection part (12), the connecting tube sleeve (30) is connected in the tube sleeve connection part (12), the edge of the tube sleeve cover (40) is welded and fixed to the bottom edge of the connecting tube sleeve (30), the top edge of the fixing ring (50) is welded and fixed to the bottom edge of the installation tube (10), and the inner side of the fixing ring (50) is welded and fixed to the bottom edge of the connecting tube sleeve (30) and the edge of the tube sleeve cover (40) respectively.

5. The through-pipe structure railing stair accessory according to claim 1, characterized in that, The mounting tube (10) has mounting holes (13) symmetrically opened on the left and right sides, and a fixing hole (14) is opened on the upper front side of the mounting tube (10).

6. The through-pipe structure railing stair accessory according to claim 1, characterized in that, The lower front side of the installation pipe (10) is provided with a pipe sleeve through hole (15), and the upper side of the connecting pipe sleeve (30) is provided with a circular connecting ring groove (31). The pipe sleeve through hole (15) and the connecting ring groove (31) are correspondingly arranged.

7. The through-pipe structure railing stair accessory according to claim 1, characterized in that, The tube cover (20) is an arc-shaped cover.

8. The through-pipe structure railing stair accessory according to claim 1, characterized in that, The installation tube (10) is a hollow cylindrical tube.