Novel anti-falling zinc steel handrail connecting piece
By using insert plates and bidirectional threaded rod structures in zinc-steel railings, the shortcomings of welding and bolt connections are solved, achieving a stable and corrosion-resistant connection method and ensuring the long-term use of zinc-steel railings.
Patent Information
- Application Number
- CN202520389069.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-07
AI Technical Summary
The existing connection methods for zinc-steel railings have problems such as difficult welding operations and easy corrosion and loosening of bolt connections, resulting in unstable connections.
The structure employs an insert plate and a two-way screw rod inside the column. The sliding connection of the insert plate and the threaded connection of the two-way screw rod achieve stable fixation of the connecting crossbar, avoids exposure of the connecting parts, and reduces the risk of corrosion.
This achieves a stable connection between the crossbar and the column, preventing corrosion and loosening, and improving the stability and durability of the connection.
Smart Images

Figure CN223867756U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of zinc steel railing technology, specifically a novel anti-fall-off zinc steel railing connector. Background Technology
[0002] Zinc-steel railings are a type of enclosure railing made of zinc alloy material. They have many advantages and wide applications. Zinc-steel railings use high-strength hot-dip galvanized materials, and the pipes are made using high-frequency electrostatic seamless welding technology, which greatly improves the overall strength.
[0003] When assembling, the common connection methods for columns and connecting crossbars are mainly welding and bolt connection. While welding can ensure high stability, it is difficult to operate and disassemble later. On the other hand, the threaded connection of bolts is more susceptible to corrosion of the external connectors, and the bolt and nut fit may loosen over time. Therefore, it is necessary to design a built-in anti-loosening connection structure to ensure the stability of the connection. Utility Model Content
[0004] The purpose of this utility model is to provide a new type of anti-fall-off zinc steel railing connector to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a post and a railing body. Side holes are provided on both sides of the post. A connecting cavity is provided inside the post at a position corresponding to the side holes. A connecting crossbar is provided on the railing body and is aligned with each side hole. The end of the connecting crossbar passes through the side hole and is located within the connecting cavity. The end of the connecting crossbar is provided with a matching connecting groove and a connecting protrusion. A central hole is provided on the side wall of the connecting groove and the connecting protrusion. A pair of insert plates are slidably connected inside the post, with the opposite end of each insert plate passing through the central hole.
[0006] Preferably, a bidirectional lead screw is rotatably connected inside the column. The bidirectional lead screw passes through the insert plate and is threadedly connected to the insert plate. An opening groove is provided on the outer wall of the central hole, and the width of the opening groove is greater than the diameter of the bidirectional lead screw.
[0007] Preferably, the column has a sliding groove, and the insert plate is slidably connected to one end of the insert plate in the sliding groove.
[0008] Preferably, a stabilizing plate is fixed to the upper opening of the column, the upper end of the bidirectional screw passes through the stabilizing plate and is fixedly connected to a rotating plate, and a decorative cover is installed on the outer periphery of the upper end of the column.
[0009] Preferably, an end block is fixed on the connecting crossbar, and a sealing gasket is fixed on the outside of the end block, abutting against the outer wall of the column.
[0010] Preferably, a limiting block is fixed at the bottom of the connecting cavity, and the position of the limiting block is aligned with the position of the insert plate.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the end of the connecting crossbar is inserted into the column, and the connection is fixed by sliding through the insert plate inside the column, which avoids corrosion of exposed connecting parts and also avoids connection instability caused by loose screws, thus ensuring a stable connection between the column and the connecting crossbar. Attached Figure Description
[0012] Figure 1 This is a front sectional view of a novel anti-fall-off zinc steel railing connector according to this utility model.
[0013] Figure 2 This is a schematic diagram of the combined structure of the insert plate and the end of the connecting crossbar of a novel anti-fall-off zinc steel railing connector according to this utility model;
[0014] Figure 3 This is a schematic diagram of the external structure of a novel anti-fall-off zinc steel railing connector column according to this utility model.
[0015] In the diagram: 1. Post; 11. Connecting cavity; 12. Sliding groove; 13. Limiting block; 14. Side hole; 2. Main body of the railing; 21. Connecting crossbar; 22. End block; 23. Connecting groove; 24. Connecting protrusion; 25. Center hole; 26. Opening slot; 3. Decorative cover; 4. Insert plate; 41. Two-way lead screw; 42. Stabilizing plate; 43. Rotating plate. Detailed Implementation
[0016] 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.
[0017] Please see Figure 1-3 This utility model provides a technical solution: including a post 1 and a railing body 2. Side holes 14 are provided on both sides of the post 1. A connecting cavity 11 is provided in the post 1 at a position corresponding to the side holes 14. A connecting crossbar 21 is provided on the railing body 2 and is aligned with the side holes 14. The end of the connecting crossbar 21 passes through the side holes 14 and is located in the connecting cavity 11. The end of the connecting crossbar 21 is provided with a matching connecting groove 23 and a connecting protrusion 24. A central hole 25 is provided on the side wall of the connecting groove 23 and the connecting protrusion 24. A pair of insert plates 4 are slidably connected in the post 1. The ends of the insert plates 4 that are far apart pass through the central hole 25.
[0018] A bidirectional lead screw 41 is rotatably connected inside the column 1. The bidirectional lead screw 41 passes through the insert plate 4 and is threadedly connected to the insert plate 4. An opening groove 26 is opened on the outer wall of the central hole 25. The width of the opening groove 26 is greater than the diameter of the bidirectional lead screw 41. A sliding groove 12 is opened inside the column 1. The end of the insert plate 4 is slidably connected to the sliding groove 12. A stabilizing plate 42 is fixed at the upper opening of the column 1. The upper end of the bidirectional lead screw 41 passes through the stabilizing plate 42 and is fixedly connected to a rotating plate 43. A decorative cover 3 is installed on the outer periphery of the upper end of the column 1. An end block 22 is fixed on the connecting crossbar 21. A sealing gasket is fixed on the outer side of the end block 22 and abuts against the outer wall of the column 1. A limiting block 13 is fixed at the bottom of the connecting cavity 11. The position of the limiting block 13 is aligned with the position of the insert plate 4.
[0019] Working principle: First, the end of the connecting crossbar 21 on the main body 2 of the railing is inserted into the connecting cavity 11 through the side hole 14. At this time, the connecting protrusion 24 can be inserted into the connecting groove 23, and the center hole 25 on the connecting protrusion 24 and the connecting groove 23 is aligned. Then, the rotation of the bidirectional lead screw 41 is used to slide the insert plate 4, so that the end of the insert plate 4 is inserted into the center hole 25, ensuring that the connecting crossbar 21 cannot be pulled out from the column 1, thus achieving a stable connection. The entire connection structure is located inside the column 1, reducing the risk of corrosion, and only the insertion needs to be ensured. The plate 4 can be inserted into the center hole 25 to ensure stable installation. When the connecting crossbar 21 is inserted into the connecting cavity 11, the opening groove 26 can ensure that the insertion process is not blocked by the bidirectional lead screw 41. The end block 22 moves to the position that abuts against the side of the column 1, which can limit the insertion depth and ensure that the position of the center hole 25 after insertion is aligned with the position of the plate 4. Then, the sliding range of the plate 4 is limited by the limiting block 13 to ensure that the end of the plate 4 that is close to it always stays in the sliding groove 12. Finally, the decorative cover 3 is put on to seal the opening at the top of the column 1.
[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0021] 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 novel anti-fall-off zinc steel railing connector, comprising a post (1) and a railing body (2), characterized in that: The column (1) has side holes (14) on both sides. A connecting cavity (11) is provided in the column (1) and at the position corresponding to the side holes (14). A connecting crossbar (21) is provided on the main body (2) of the railing and is aligned with the side holes (14). The end of the connecting crossbar (21) passes through the side hole (14) and is located in the connecting cavity (11). The end of the connecting crossbar (21) is provided with a matching connecting groove (23) and a connecting protrusion (24). A central hole (25) is provided on the side wall of the connecting groove (23) and the connecting protrusion (24). A pair of insert plates (4) are slidably connected in the column (1). The ends of the insert plates (4) that are far apart pass through the central hole (25).
2. The novel anti-fall-off zinc steel railing connector according to claim 1, characterized in that: The column (1) is rotatably connected to a two-way lead screw (41), which passes through the insert plate (4) and is threadedly connected to the insert plate (4). The outer wall of the central hole (25) is provided with an opening groove (26), the width of which is greater than the diameter of the two-way lead screw (41).
3. The novel anti-fall-off zinc steel railing connector according to claim 1, characterized in that: The column (1) has a sliding groove (12) inside, and the insert plate (4) is slidably connected to the sliding groove (12) at one end.
4. A novel anti-fall-off zinc steel railing connector according to claim 2, characterized in that: The upper opening of the column (1) is fixed with a stabilizing plate (42), the upper end of the bidirectional screw (41) passes through the stabilizing plate (42) and is fixedly connected with a rotating plate (43), and a decorative cover (3) is installed on the outer periphery of the upper end of the column (1).
5. The novel anti-fall-off zinc steel railing connector according to claim 1, characterized in that: An end block (22) is fixed on the connecting crossbar (21), and a sealing gasket is fixed on the outside of the end block (22) and abuts against the outer wall of the column (1).
6. The novel anti-fall-off zinc steel railing connector according to claim 1, characterized in that: A limiting block (13) is fixed at the bottom of the connecting cavity (11), and the position of the limiting block (13) is aligned with the position of the insert plate (4).