High-precision tube-penetrating rail
By using a guiding and adjusting mechanism, the problem of insufficient precision in the assembly of the pipe-through railings was solved, achieving high-precision railing assembly and stable connection, and improving the convenience of transportation and use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG SHENGDA TING MASCH EQUIP CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-31
AI Technical Summary
The existing through-tube railings lack auxiliary guiding structures, resulting in insufficient precision during assembly.
The system employs a guiding and adjusting mechanism, including a guide tube sheet, a positioning frame, a torsion spring rotating rod, and a central tube sheet. The angle is adjusted and fixed through the rotating rod structure, and combined with a return spring and connecting rod, it achieves precise connection and stable assembly.
It improves the accuracy and stability of pipe assembly, facilitates the combination and disassembly of railings, reduces bumps and deformation during transportation, and enhances the user experience.
Smart Images

Figure CN224579165U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railing technology, and in particular to a high-precision through-tube railing. Background Technology
[0002] As is well known, through-pipe railings are a common type of protective facility, assembled from components such as vertical pipes and horizontal bars through a through-pipe method. They are usually made primarily of metal pipes. The vertical pipes are fixed vertically to the ground or base, while the horizontal bars are inserted into pre-drilled holes in the vertical pipes to form a horizontal connection. The overall protective structure is formed through the interlocking of the pipes. These railings are widely used in building balconies, stair handrails, road barriers, landscape fences, and other scenarios. With the strength of the pipes themselves and the stability of the through-pipe connection, they achieve the functions of safety protection and boundary demarcation, while also being easy to install and having a simple structure.
[0003] The existing railings are mostly welded railings, which have many defects such as welding deformation, inability to disassemble during transportation, difficulty in transportation, susceptibility to damage, low production efficiency, and poor appearance quality. They are also inconvenient to install and use, resulting in low user satisfaction.
[0004] An existing patent (publication number: CN204727485U) discloses a tube-type detachable crane railing, including a fastening device, a crossbar, an upright device, a connecting plate, a rubber sleeve, and a rubber end cap; the crossbar is a circular steel pipe structure; the upright device has fixing holes that match the crossbar, the crossbar passes through the fixing holes of the upright device, and the upright device is fixedly connected to the crossbar by the fastening device; the bottom of the upright device is connected to the connecting plate by bolts. This utility model railing structure, by adopting the tube-type modular design principle, can easily realize the assembly and disassembly of the railing and any combination of structural methods, reduce various bumps and deformations during transportation, avoid the impact of welding deformation on the quality of the railing, and achieve satisfactory use results.
[0005] To address the aforementioned issues, existing patents offer solutions. However, due to the lack of an auxiliary guiding structure for the tube-through structure, it is impossible to guide it during tube assembly, thus reducing the accuracy of tube assembly on the railing.
[0006] To address this, a high-precision pipe-insertion railing is proposed. Utility Model Content
[0007] The purpose of this utility model is to provide a high-precision tube-insertion railing that can solve the problem of the lack of an auxiliary guiding structure for the tube-insertion structure in the existing system, which makes it impossible to guide the tube during assembly and reduces the accuracy of tube assembly on the railing.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a high-precision through-tube railing, comprising a railing base, perforated railing posts, a guiding mechanism, and an adjusting mechanism. The perforated railing posts are located on the top of the railing base, the guiding mechanism is located on the inner side of the perforated railing posts, and the adjusting mechanism is located on the inner side of the guiding mechanism. The guiding mechanism includes a guiding tube plate, a positioning frame, a torsion spring rotating rod, and a concentrating tube plate. The guiding tube plate is snapped onto both sides of the inner side of the perforated railing posts. The positioning frame is fixedly connected to the surface of the guiding tube plate. The torsion spring rotating rod is located on the inner side of the positioning frame, and the concentrating tube plate is located on the side of the torsion spring rotating rod away from the guiding tube plate.
[0009] Preferably, the adjustment mechanism includes a railing assembly and a positioning assembly, wherein the railing assembly is located inside the central tube plate, and the positioning assembly is located inside the railing assembly.
[0010] Preferably, the railing assembly includes an outer railing, connecting positioning holes, and an inner railing. The outer railing is disposed on the inner side of the central tube plate, and the surface of the outer railing contacts the inner side of the guide tube plate. The connecting positioning holes are respectively opened at the bottom of the outer railing and the bottom of the inner railing, and the inner railing is slidably connected to the inner side of the outer railing.
[0011] Preferably, the positioning assembly includes a connecting rod, a positioning plate, and a return spring. The connecting rod is slidably connected to the inside of the connecting positioning hole. The positioning plate is fixedly connected to the top of the connecting rod. The bottom of the positioning plate contacts the inside of the inner lining railing. The return spring is fixedly connected to the top of the positioning plate. The top of the return spring contacts the top of the inside of the inner lining railing.
[0012] Preferably, a protective plate is fixedly connected to the inner side of the centralized tube sheet, and a rubber sleeve is provided on the inner side of the protective plate, with anti-slip texture on the surface of the rubber sleeve.
[0013] Preferably, a connecting sleeve is fixedly connected to the side of the guide tube plate near the perforated railing post, the surface of the connecting sleeve is threaded, and the surface of the connecting sleeve is threadedly connected to the inner side of the perforated railing post.
[0014] Preferably, buffer sleeves are fixedly connected to both sides of the inner railing, and the surface of the buffer sleeves is provided with anti-slip texture, and the surface of the buffer sleeves is in contact with the inner side of the outer railing.
[0015] Preferably, a positioning top plate is fixedly connected to the top of the inner side of the inner railing, and the bottom of the positioning top plate contacts the top of the return spring.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. This application, by setting up a guiding mechanism, uses a railing base structure, which is a base structure used in the prior art for connecting to the ground, to support and limit the perforated railing posts. The perforated railing posts are positioning structures used in the prior art for connecting railing structures, and they have holes for connection. They can limit up to ten guide tube plates. The guide tube plates and the central tube plates are both arc-shaped metal plates, which can surround each other in a ring shape with the holes of the perforated railing posts as the center, thus forming a pipe for limiting the outer railing. The torsion spring rotating rod is an existing structure composed of a rotating rod structure and a torsion spring structure. The angle adjustment structure uses the positioning frame as a support point. The tilt angle of the central tube plate can be adjusted by the rotating rod structure on the guide tube plate. The angle of the central tube plate can be fixed at a 45-degree tilt angle by the torsion spring structure. This allows the central tube plate to tilt radially away from the hole of the perforated railing post, guiding the connection between the railing assembly and the guide tube plate. As the guide tube plate continues to penetrate deeper into the guide tube plate, the central tube plate is kept flush with the guide tube plate along the rotating rod structure of the torsion spring, ultimately guiding and connecting the outer railing.
[0018] 2. This application, by setting an adjustment mechanism, allows the railing assembly to cooperate with the positioning assembly. Using the outer railing as a support point with the guide plate and the central plate, the inner railing can be limited, thus forming a railing structure. Using the two guide plates and the central plate as support points, a complete railing is formed. The connecting rod, through a return spring, uses the top of the inner side of the inner railing as a support point to push the positioning plate downwards, providing continuous thrust to the connecting rod. When the connecting rod is inserted into the connecting positioning hole, positioning the outer and inner railings, it allows the outer and inner railings to maintain a stable structure. This facilitates the movement of the inner railing within the outer railing, changing the spacing between the two outer railings to adapt to different spacing requirements between perforated railing posts. Attached Figure Description
[0019] Figure 1 This is an overall structural diagram of the high-precision through-tube railing of this utility model;
[0020] Figure 2 This is a schematic diagram of the guiding mechanism of this utility model;
[0021] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model;
[0022] Figure 4 This is a schematic diagram of the structure of the railing assembly of this utility model;
[0023] Figure 5 This is a schematic diagram of the positioning component of this utility model.
[0024] In the diagram, 1. Railing base; 2. Perforated railing post; 3. Guide mechanism; 31. Guide tube plate; 32. Positioning frame; 33. Torsion spring rotating rod; 34. Central tube plate; 35. Protective plate; 36. Connecting sleeve; 4. Adjustment mechanism; 41. Railing assembly; 411. Outer railing; 412. Connecting positioning hole; 413. Inner railing; 414. Buffer sleeve; 42. Positioning assembly; 421. Connecting rod; 422. Positioning plate; 423. Return spring; 424. Positioning top plate. 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 Figure 1-5 The present invention provides the following technical solution:
[0027] A high-precision through-tube railing includes a railing base 1, perforated railing posts 2, a guide mechanism 3, and an adjustment mechanism 4. The perforated railing posts 2 are located on the top of the railing base 1, the guide mechanism 3 is located inside the perforated railing posts 2, and the adjustment mechanism 4 is located inside the guide mechanism 3. The guide mechanism 3 includes a guide tube plate 31, a positioning frame 32, a torsion spring rotating rod 33, and a central tube plate 34. The guide tube plate 31 is snapped onto both sides of the inner side of the perforated railing posts 2, the positioning frame 32 is fixedly connected to the surface of the guide tube plate 31, the torsion spring rotating rod 33 is located inside the positioning frame 32, and the central tube plate 34 is located on the side of the torsion spring rotating rod 33 away from the guide tube plate 31.
[0028] In this embodiment: by setting a guide mechanism 3, the railing base 1 is a base structure used in the prior art for connecting to the ground, which can support and limit the perforated railing post 2. The perforated railing post 2 is a positioning structure used in the prior art for connecting railing structures, which has holes for connection and can limit up to ten guide tube plates 31. The guide tube plate 31 and the central tube plate 34 are both arc-shaped metal plates in the prior art, which can surround each other in a ring shape with the holes of the perforated railing post 2 as the center, thereby forming a pipe for limiting the outer railing 411. The torsion spring rotating rod 33 is an existing angle adjustment composed of a rotating rod structure and a torsion spring structure. The structure can use the positioning frame 32 as a support point, and the tilt angle of the central tube plate 34 can be adjusted by the rotating rod structure on the guide tube plate 31. The angle of the central tube plate 34 can be fixed at a 45-degree tilt angle by the torsion spring structure. This allows the central tube plate 34 to present a radial tilt shape centered on the hole of the perforated railing post 2, tilting away from the center. This guides the connection between the railing assembly 41 and the guide tube plate 31. As the guide tube plate 31 is continuously extended into the guide tube plate 31, the central tube plate 34 is continuously kept flush with the guide tube plate 31 along the rotating rod structure of the torsion spring rotating rod 33, ultimately achieving the guidance and connection of the outer railing 411.
[0029] Specifically, such as Figure 3 As shown, the adjustment mechanism 4 includes a railing assembly 41 and a positioning assembly 42. The railing assembly 41 is located inside the central tube plate 34, and the positioning assembly 42 is located inside the railing assembly 41.
[0030] Specifically, such as Figure 4 As shown, the railing assembly 41 includes an outer railing 411, a connecting positioning hole 412, and an inner railing 413. The outer railing 411 is located inside the central tube plate 34, and the surface of the outer railing 411 contacts the inner side of the guide tube plate 31. The connecting positioning hole 412 is respectively opened at the bottom of the outer railing 411 and the bottom of the inner railing 413. The inner railing 413 is slidably connected to the inner side of the outer railing 411.
[0031] Specifically, such as Figure 5 As shown, the positioning assembly 42 includes a connecting rod 421, a positioning plate 422, and a return spring 423. The connecting rod 421 is slidably connected to the inside of the connecting positioning hole 412. The positioning plate 422 is fixedly connected to the top of the connecting rod 421. The bottom of the positioning plate 422 contacts the inside of the inner lining railing 413. The return spring 423 is fixedly connected to the top of the positioning plate 422. The top of the return spring 423 contacts the top of the inside of the inner lining railing 413.
[0032] In this embodiment: By setting the adjustment mechanism 4, the railing assembly 41 can cooperate with the positioning assembly 42. With the outer railing 411 as the support point of the guide tube plate 31 and the central tube plate 34, the inner railing 413 can be limited, thus forming a railing structure with the inner railing 413. With the two guide tube plates 31 and the central tube plate 34 as the support points, the railing as a whole is formed. The connecting rod 421 can push the positioning plate 422 downward with the top of the inner side of the inner railing 413 as the support point through the return spring 423, thereby providing a continuous thrust for the connecting rod 421. When the connecting rod 421 is inserted into the connecting positioning hole 412 and the outer railing 411 and the inner railing 413 are positioned, the outer railing 411 and the inner railing 413 can maintain a stable structure, which makes it easy for the inner railing 413 to move within the outer railing 411 and change the distance between the two outer railings 411 to adapt to the different distance requirements between the perforated railing posts 2.
[0033] Specifically, such as Figure 2 As shown, a protective plate 35 is fixedly connected to the inner side of the centralized tube sheet 34. The inner side of the protective plate 35 is provided with a rubber sleeve, and the surface of the rubber sleeve is provided with anti-slip texture.
[0034] Specifically, such as Figure 2 As shown, a connecting sleeve 36 is fixedly connected to the side of the guide tube plate 31 near the perforated railing post 2. The surface of the connecting sleeve 36 is threaded, and the surface of the connecting sleeve 36 is threaded to the inner side of the perforated railing post 2.
[0035] In this embodiment: by setting a protective plate 35 and a connecting sleeve 36, the protective plate 35 can cooperate with the central tube plate 34. The protective plate 35 can contact the surface of the outer railing 411 through a rubber sleeve with anti-slip texture on its surface. The rubber sleeve can cushion the surface of the outer railing 411 through its own flexible structure, and at the same time increase the stability of the anti-slip texture when limiting the outer railing 411, thereby increasing the stability when the outer railing 411 is connected to the central tube plate 34. The connecting sleeve 36 can use its own threaded structure to thread the guide tube plate 31 to the hole of the perforated railing post 2, thereby increasing the stability when the perforated railing post 2 is connected to the guide tube plate 31 by using the threaded connection.
[0036] Specifically, such as Figure 3 As shown, buffer sleeves 414 are fixedly connected to both sides of the inner railing 413. The surface of the buffer sleeve 414 is provided with anti-slip texture, and the surface of the buffer sleeve 414 is in contact with the inner side of the outer railing 411.
[0037] Specifically, such as Figure 4 As shown, a positioning top plate 424 is fixedly connected to the top of the inner side of the inner railing 413, and the bottom of the positioning top plate 424 contacts the top of the return spring 423.
[0038] In this embodiment: by setting a buffer sleeve 414 and a positioning top plate 424, the buffer sleeve 414 can cooperate with the inner railing 413. The anti-slip texture on the surface of the buffer sleeve 414 further increases the resistance when the buffer sleeve 414 contacts the inner wall of the outer railing 411, thereby preventing the inner railing 413 from slipping accidentally when moving inside the outer railing 411. The positioning top plate 424 can provide auxiliary support for the top of the return spring 423, preventing the top of the return spring 423 from slipping accidentally due to the internal arc surface structure of the inner railing 413.
[0039] Working principle: First, fix the railing base 1 on the ground where it is to be installed. Then, install the guide plate 31 in the hole of the perforated railing post 2. Next, insert the outer railing 411 into the central plate 34. At this time, the central plate 34 will move along the torsion spring rod 33 within the positioning frame 32. As the outer railing 411 is inserted, it gradually becomes flush with the guide plate 31 until it is inserted into the desired installation position within the guide plate 31. Then, press the connecting rod 421 upwards until it moves away from the connecting positioning hole 412, and allow the return spring 423 to begin storing force, thus activating the inner railing. 413 moves from inside the outer railing 411, changing the distance between the outer railing 411 and the inner railing 413, and aligning the connecting positioning hole 412 on the outer railing 411 with the connecting positioning hole 412 on the inner railing 413. Then, due to the elastic force generated by the stored force of the return spring 423, the connecting rod 421 will push the positioning plate 422 downward and push the connecting rod 421 towards the connecting positioning hole 412, so that the connecting rod 421 limits the outer railing 411 and the inner railing 413. Then, the other end of the outer railing 411 can be connected to the central tube plate 34 on another perforated railing post 2.
[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-precision tube-penetration barrier, comprising a barrier base (1), a perforated barrier post (2), a guide mechanism (3) and an adjustment mechanism (4), characterized in that: The perforated railing post (2) is located on the top of the railing base (1), the guide mechanism (3) is located on the inner side of the perforated railing post (2), and the adjustment mechanism (4) is located on the inner side of the guide mechanism (3). The guide mechanism (3) includes a guide tube plate (31), a positioning frame (32), a torsion spring rotating rod (33), and a central tube plate (34). The guide tube plate (31) is snapped onto both sides of the inner side of the perforated railing post (2). The positioning frame (32) is fixedly connected to the surface of the guide tube plate (31). The torsion spring rotating rod (33) is located on the inner side of the positioning frame (32), and the central tube plate (34) is located on the side of the torsion spring rotating rod (33) away from the guide tube plate (31).
2. A high-precision tube-penetrating barrier according to claim 1, characterized in that: The adjustment mechanism (4) includes a railing assembly (41) and a positioning assembly (42). The railing assembly (41) is located inside the central tube plate (34), and the positioning assembly (42) is located inside the railing assembly (41).
3. A high-precision tube-penetrating barrier according to claim 2, characterized in that: The railing assembly (41) includes an outer railing (411), connecting positioning holes (412), and an inner railing (413). The outer railing (411) is located on the inner side of the central tube plate (34), and the surface of the outer railing (411) is in contact with the inner side of the guide tube plate (31). The connecting positioning holes (412) are respectively opened at the bottom of the outer railing (411) and the bottom of the inner railing (413). The inner railing (413) is slidably connected to the inner side of the outer railing (411).
4. A high-precision tube-penetration barrier according to claim 3, characterized in that: The positioning assembly (42) includes a connecting rod (421), a positioning plate (422), and a return spring (423). The connecting rod (421) is slidably connected to the inside of the connecting positioning hole (412). The positioning plate (422) is fixedly connected to the top of the connecting rod (421). The bottom of the positioning plate (422) contacts the inside of the inner railing (413). The return spring (423) is fixedly connected to the top of the positioning plate (422). The top of the return spring (423) contacts the top of the inside of the inner railing (413).
5. A high-precision tube-penetrating barrier according to claim 1, characterized in that: A protective plate (35) is fixedly connected to the inner side of the centralized tube sheet (34). The inner side of the protective plate (35) is provided with a rubber sleeve, and the surface of the rubber sleeve is provided with anti-slip texture.
6. A high-precision tube-penetration barrier according to claim 1, characterized in that: The guide tube plate (31) is fixedly connected to a connecting sleeve (36) on the side near the perforated railing post (2). The surface of the connecting sleeve (36) is threaded, and the surface of the connecting sleeve (36) is threaded to the inner side of the perforated railing post (2).
7. A high-precision tube-penetration barrier according to claim 3, characterized in that: The inner railing (413) is fixedly connected to two sides with a buffer sleeve (414), the surface of the buffer sleeve (414) is provided with anti-slip texture, and the surface of the buffer sleeve (414) is in contact with the inner side of the outer railing (411).
8. A high-precision tube-penetration barrier according to claim 4, characterized in that: A positioning top plate (424) is fixedly connected to the top of the inner side of the inner railing (413), and the bottom of the positioning top plate (424) is in contact with the top of the return spring (423).