Subway entrance and exit enclosure
By using the magnetic adsorption of the insert plate and slot and the cooperation of the movable column, combined with the sliding connection of the positioning column, the problem of unstable splicing of subway entrance and exit fences is solved, achieving a fast, strong and convenient splicing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO CAVENDI RAIL TRANSIT ENG CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-07
AI Technical Summary
During the assembly process of existing subway entrance and exit barriers, the magnetic splicing method is not strong enough, and the traditional bolt fixing method is inefficient, resulting in insufficient splicing efficiency and strength.
It adopts a plate and slot design, and uses neodymium iron boron magnets to achieve initial fixation. Combined with the cooperation of movable column and positioning column, it achieves fast and firm splicing through the sliding connection of inclined groove and sliding sleeve. The stability is further increased by filling the bottom box with water.
It improves the efficiency and strength of fence splicing, avoids the problem of weak magnetic splicing, and maintains the lightweight and convenient installation characteristics.
Smart Images

Figure CN224468902U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of protective facility technology, specifically to subway entrance and exit barriers. Background Technology
[0002] Construction barriers are mainly used to temporarily isolate construction areas from public spaces during subway construction. They form a physical barrier using lightweight and durable plastic sheets (such as PVC or polycarbonate) to prevent pedestrians from accidentally entering the construction area. At the same time, they block the spread of construction noise, dust, and flying debris, ensuring the safety of the surrounding environment. Their lightweight nature allows for quick installation and disassembly, and they can be reused to reduce costs. Some designs also incorporate urban cultural elements, balancing functionality and aesthetics. They regulate construction boundaries while minimizing traffic disruption, making them a temporary protective facility in subway construction that balances efficiency and public interest.
[0003] During the assembly process, most fences are fixed with bolts, which is inefficient to tighten each bolt individually. Some fences are assembled using magnetic attachment, which improves the assembly efficiency, but the assembly is not strong enough by magnetic attachment alone. Utility Model Content
[0004] The purpose of this utility model is to provide a fence for subway entrances and exits to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a subway entrance / exit enclosure, comprising a panel and a base box, and further comprising:
[0006] A slot is provided on one side of the plate, and an insert plate is bolted to the other side of the plate. A first magnet is fixed on the upper part of the inner wall of the slot, and a circular groove is also provided on the side inside the slot.
[0007] A vertical groove is formed inside the insert plate, the top of the vertical groove extends to the surface of the top of the insert plate, a movable column is slidably connected to the inner wall of the vertical groove, a connecting rod is bolted to the bottom end of the movable column, an inclined groove is formed on the surface of the connecting rod, and a second magnet is fixed to the top of the movable column.
[0008] A sliding sleeve is bolted to the inner wall of the vertical groove. The inner wall of the sliding sleeve is slidably connected to a positioning post that cooperates with the circular groove. Fixing plates are bolted to both sides of one end of the positioning post. A connecting post is bolted to the surface of the fixing plate, and the connecting post is slidably connected to the inner wall of the inclined groove. A water inlet is provided through the top of the bottom box, and a sealing cap is threaded to the inner wall of the water inlet.
[0009] Preferably, a pin groove is provided on one side of the bottom box, and a pin is bolted to the other side of the bottom box.
[0010] Preferably, a valve is also provided on the surface of the bottom box.
[0011] Preferably, a circular hole is provided on one side of the insert plate, and the inner diameter of the circular hole is larger than the outer diameter of the positioning post.
[0012] Preferably, limit strips are also bolted to both sides of the inner wall of the vertical groove.
[0013] Preferably, both the first magnet and the second magnet are neodymium iron boron magnets.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This invention uses an insert plate to enter the interior of the slot, bringing the second magnet close to the first magnet. The attraction between the two magnets causes the second magnet and the movable column to rise, allowing the movable column to enter the upper part of the slot for initial fixation. Simultaneously, the movable column drives the connecting rod and the inclined groove to rise, pushing the connecting column and the positioning column to move horizontally, allowing the positioning column to enter the interior of the circular groove. The positioning column and the movable column work together to ensure splicing efficiency while further improving the splicing firmness, avoiding the situation where the splicing is not secure due to magnetic attraction. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a cross-sectional view of the plate body in this utility model;
[0018] Figure 3 This is a cross-sectional view of the insert plate in this utility model;
[0019] Figure 4 This is a schematic diagram of the insert plate in this utility model;
[0020] Figure 5 This is a partial structural diagram of the present invention;
[0021] Figure 6 This is a schematic diagram of the present invention after assembly;
[0022] Figure 7 This is a cross-sectional view of the bottom box of this utility model;
[0023] Figure 8 This utility model Figure 7 A magnified structural diagram of point A in the middle.
[0024] In the diagram: 1. Plate; 2. Base box; 3. Slot; 4. First magnet; 5. Circular groove; 6. Insert plate; 7. Vertical groove; 8. Movable column; 9. Second magnet; 10. Limiting strip; 11. Connecting rod; 12. Inclined groove; 13. Fixing plate; 14. Connecting column; 15. Positioning column; 16. Sliding sleeve; 17. Circular hole; 18. Water inlet; 19. Sealing cap; 20. Valve; 21. Pin groove; 22. Pin column. 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 1-8 As shown, the subway entrance / exit enclosure includes a panel 1 and a base box 2. It also includes a slot 3 on one side of the panel 1 and an insert plate 6 bolted to the other side. A first magnet 4 is fixed to the upper inner wall of the slot 3. A circular groove 5 is also formed on the inner side of the slot 3. A vertical groove 7 is formed inside the insert plate 6, with its top extending to the surface of the top of the insert plate 6. A movable column 8 is slidably connected to the inner wall of the vertical groove 7. Limiting strips 10 are bolted to both sides of the inner wall of the vertical groove 7 to prevent the movable column 8 from falling into the depth of the vertical groove 7 under gravity. A connecting rod 11 is bolted to the bottom of the movable column 8. An inclined groove 12 is formed on the surface of the connecting rod 11, and the inner wall of the inclined groove 12 is designed to be inclined. A second magnet 9 is fixed to the top of the movable column 8. Both the first magnet 4 and the second magnet 9 are neodymium iron boron magnets. A sliding sleeve 16 is also bolted to the inner wall of the vertical groove 7. A positioning column 15 that works with the circular groove 5 is slidably connected to the inner wall of the sliding sleeve 16. Fixing plates 13 are bolted to both sides of one end of the positioning column 15. A connecting column 14 is bolted to the surface of the fixing plate 13, and the connecting column 14 is slidably connected to the inner wall of the inclined groove 12. A water inlet 18 is provided through the top of the bottom box 2. A sealing cap 19 is threaded to the inner wall of the water inlet 18 to seal the water inlet 18. A circular hole 17 is also provided on one side of the insert plate 6. The inner diameter of the circular hole 17 is larger than the outer diameter of the positioning column 15 so that the positioning column 15 can pass through.
[0027] A pin groove 21 is provided on one side of the bottom box 2, and a pin 22 is bolted to the other side of the bottom box 2. During the assembly process, pick up plate 1 and align it with another plate 1, so that the insert plate 6 is aligned with the slot 3, and the pin 22 is aligned with the pin groove 21. Then, let the insert plate 6 enter the interior of the slot 3, and at the same time, the pin 22 is inserted into the interior of the pin groove 21. When the insert plate 6 enters the interior of the slot 3, the first magnet 4 and the second magnet 9 attract each other. At this time, the second magnet 9 drives the movable column 8 to rise and enter the upper part of the interior of the slot 3 to achieve initial fixation. At the same time, the movable column 8 drives the connecting rod 11 and the inclined groove 12 to rise, and pushes the connecting column 14 and the fixing plate 13 to move through the inclined groove 12, and pushes the positioning column 15 to slide along the inner wall of the sliding sleeve 16, so that the positioning column 15 passes through the round hole 17 into the interior of the round groove 5, further fixing the insert plate 6 and the slot 3. The assembly and fixing method is simpler and faster, and the connection is more secure, avoiding the situation of weak assembly caused by magnetic attraction.
[0028] After assembly, open the sealing cover 19 and inject water into the bottom box 2 through the water inlet 18 to increase the center of gravity of the entire fence bottom, making the fence more stable. Moreover, the bottom box 2 is hollow, making it lighter and easier to transport. The surface of the bottom box 2 is also connected to a valve 20. If the entire fence needs to be moved, the valve 20 can be opened to release water in order to reduce weight. In order to prevent water from overflowing, a hose can be connected to the end of the valve 20 to a nearby drainage system.
[0029] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0030] 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 subway entrance / exit enclosure, comprising a panel (1) and a base box (2), characterized in that, Also includes: A slot (3) is opened on one side of the plate (1), and a plug plate (6) is bolted to the other side of the plate (1). A first magnet (4) is fixed on the upper part of the inner wall of the slot (3), and a circular groove (5) is also opened on the side inside the slot (3). A vertical groove (7) is formed inside the insert plate (6), the top of the vertical groove (7) extends to the surface of the top of the insert plate (6), a movable column (8) is slidably connected to the inner wall of the vertical groove (7), a connecting rod (11) is bolted to the bottom of the movable column (8), an inclined groove (12) is formed on the surface of the connecting rod (11), and a second magnet (9) is fixed to the top of the movable column (8). A sliding sleeve (16) is bolted to the inner wall of the vertical groove (7). The inner wall of the sliding sleeve (16) is slidably connected to a positioning post (15) that cooperates with the circular groove (5). Fixing plates (13) are bolted to both sides of one end of the positioning post (15). A connecting post (14) is bolted to the surface of the fixing plate (13), and the connecting post (14) is slidably connected to the inner wall of the inclined groove (12). A water inlet (18) is provided through the top of the bottom box (2), and a sealing cap (19) is threadedly connected to the inner wall of the water inlet (18).
2. The subway entrance / exit enclosure according to claim 1, characterized in that: A pin groove (21) is provided on one side of the bottom box (2), and a pin (22) is bolted to the other side of the bottom box (2).
3. The subway entrance / exit enclosure according to claim 1, characterized in that: A valve (20) is also connected to the surface of the bottom box (2).
4. The subway entrance / exit enclosure according to claim 1, characterized in that: A circular hole (17) is also provided on one side of the insert plate (6), and the inner diameter of the circular hole (17) is larger than the outer diameter of the positioning post (15).
5. The subway entrance / exit enclosure according to claim 1, characterized in that: Limiting strips (10) are also bolted to both sides of the inner wall of the vertical groove (7).
6. The subway entrance / exit enclosure according to claim 1, characterized in that: The first magnet (4) and the second magnet (9) are both neodymium iron boron magnets.