Safety protection device for underground rail transit
By designing an adjustable safety protection device for columns, cross bars and vertical bar structures, the stability problem of rail transit protective doors during maintenance is solved, and the effect of flexible adaptation to the door width and preventing overturning is achieved.
Patent Information
- Application Number
- CN202422464944.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-10-12
AI Technical Summary
The lack of adjustable temporary enclosures during maintenance of existing rail transit protective doors, resulting in insufficient protection stability.
A safety protection device including a first column, a second column, a first cross bar, a second cross bar and a expansion bar is designed. It is fixed to both sides of the protective door through a hook and a pinch bar. The cross bar is retractable and adjustable, and the vertical bar penetrates the cross bar gap to prevent overturning and improve protection stability.
It realizes stable installation and adjustment according to the width of the protective door, preventing irrelevant personnel from climbing over, and improving the stability and safety of the protective device.
Smart Images

Figure CN223058988U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of protective devices, in particular to a safety protective device for underground rail transit. Background Technique
[0002] Nowadays, transportation methods are becoming more and more diverse. With the economic development and population growth, many cities have gradually set up rail transit methods suitable for the current city to complement ordinary buses and taxis on the ground. Among them, subways and trams are the most representative. In particular, subway transportation is very popular among passengers due to its safety, speed, and autonomy.
[0003] However, through research, it is found that when the protective doors used in current rail transit break down and need to be repaired, it is not convenient to temporarily enclose them according to the width of the door body. There is a lack of a device for isolating passengers, and only simple placed guardrails are used for maintenance, resulting in insufficient protection stability.
[0004] In view of the above problems, there is an urgent need to innovate and design on the basis of protective devices. Content of the Utility Model
[0005] The purpose of the utility model is to provide a safety protective device for underground rail transit to solve the technical problems put forward in the above background technique.
[0006] To achieve the above purpose, the utility model provides the following technical solution: A safety protective device for underground rail transit, including a first upright post, a second upright post is arranged on the outside of the first upright post, a first cross bar and a second cross bar are respectively fixed on the surfaces of the first upright post and the second upright post, an expansion rod is arranged between the first cross bar and the second cross bar, slots are opened at both ends of the expansion rod, fastening bolts are arranged at the openings of the slots, a horizontal plate is arranged on the surface of the expansion rod, a through hole is opened on the horizontal plate, vertical holes are opened on both the first cross bar and the second cross bar, vertical rods are arranged inside the vertical holes, hooks are respectively fixed on the upper end surfaces of the first upright post and the second upright post, and a top rod is arranged on the hook.
[0007] Preferably, the first cross bar and the second cross bar are evenly distributed on the surfaces of the first upright post and the second upright post at equal intervals.
[0008] Preferably, one ends of the first cross bar and the second cross bar are both located inside the slot, and the first cross bar and the second cross bar form a telescopic structure with the expansion rod through the slot.
[0009] Preferably, the fastening bolt is in threaded connection with the expansion rod, and one end of the fastening bolt abuts against the surfaces of the first cross bar and the second cross bar.
[0010] Preferably, a warning sign is provided on the outer side of the extension rod, and mounting bolts are provided on the warning sign.
[0011] Preferably, the vertical rod is of a "T" - shaped structure when viewed from the front, and the vertical rod is respectively connected through vertical holes to the first cross - bar and the second cross - bar in a penetrating manner.
[0012] Preferably, the lower end of the vertical rod is provided with a thread and a nut is installed.
[0013] Preferably, the hook is of an inverted "concave" - shaped structure when viewed from the side. The tightening rod is connected to the hook through a through - type thread, and a rubber pad is provided at one end of the tightening rod.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: for the safety protection device for underground rail transit, the first upright post and the second upright post can be respectively fixed and suspended on both sides of the subway protection door through the hook and the tightening rod, which is convenient for stable installation and protection. The first cross - bar and the second cross - bar can both be telescopically adjusted on the extension rod through the groove body, which is convenient for adapting to the width of the protection door to block and protect it. The vertical rod can be inserted between the first cross - bar and the second cross - bar, which can prevent unauthorized personnel from climbing over through the gap between the first cross - bar and the second cross - bar, and improve the protection stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is the overall front - view structural schematic diagram of the present utility model;
[0016] Figure 2 is the sectional view structural schematic diagram of the connection between the first cross - bar, the second cross - bar and the extension rod of the present utility model;
[0017] Figure 3 is the side - view mounting structural schematic diagram of the hook of the present utility model;
[0018] Figure 4 is the present utility model Figure 3 the enlarged structural schematic diagram of part A in;
[0019] Figure 5 is the structural schematic diagram of the vertical rod of the present utility model.
[0020] In the figure: 1. First upright post; 2. Second upright post; 3. First cross - bar; 4. Second cross - bar; 5. Extension rod; 6. Groove body; 7. Tightening bolt; 8. Horizontal plate; 9. Perforation; 10. Warning sign; 11. Mounting bolt; 12. Vertical hole; 13. Vertical rod; 14. Nut; 15. Hook; 16. Tightening rod; 17. Rubber pad. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0022] Please refer to Figures 1 - 5 , the present invention provides a technical solution: a safety protection device for underground rail transit, including a first column 1, a second column 2 is arranged outside the first column 1, a first cross bar 3 and a second cross bar 4 are respectively fixed on the surfaces of the first column 1 and the second column 2, an extension bar 5 is arranged between the first cross bar 3 and the second cross bar 4, slots 6 are opened at both ends of the extension bar 5, fastening bolts 7 are arranged at the openings of the slots 6, a cross plate 8 is arranged on the surface of the extension bar 5, a through hole 9 is opened on the cross plate 8, vertical holes 12 are opened on both the first cross bar 3 and the second cross bar 4, a vertical rod 13 is arranged inside the vertical holes 12, and hooks 15 are respectively fixed on the upper end surfaces of the first column 1 and the second column 2, and a top bar 16 is arranged on the hooks 15.
[0023] The first cross bar 3 and the second cross bar 4 are equally spaced on the surfaces of the first column 1 and the second column 2 respectively, which is convenient for the first cross bar 3 and the second cross bar 4 to perform shielding protection between the first column 1 and the second column 2.
[0024] One ends of the first cross bar 3 and the second cross bar 4 are both located in the slot 6, and the first cross bar 3 and the second cross bar 4 are both configured as telescopic structures with the extension bar 5 through the slot 6, which is convenient for the first cross bar 3 and the second cross bar 4 to perform telescopic adjustment on the extension bar 5 through the slot 6, and is beneficial to adapting to the width of the protective door.
[0025] The fastening bolt 7 is threadedly connected to the extension bar 5, and one end of the fastening bolt 7 abuts against the surfaces of the first cross bar 3 and the second cross bar 4. After the first cross bar 3 and the second cross bar 4 are adjusted on the extension bar 5, the fastening bolt 7 can be tightened to lock the first cross bar 3 and the second cross bar 4.
[0026] A warning sign 10 is arranged outside the extension bar 5, and a mounting bolt 11 is arranged on the warning sign 10, and the mounting bolt 11 can be passed through the warning sign 10 and tightened in the through hole 9 on the cross plate 8.
[0027] The vertical rod 13 is in a "T" - shaped structure when viewed from the front. The vertical rod 13 is respectively connected through the vertical holes 12 with the first cross bar 3 and the second cross bar 4. Threads are opened at the lower end of the vertical rod 13 and a nut 14 is installed, which is beneficial to stably installing the vertical rod 13 between the first cross bar 3 and the second cross bar 4 to protect the gap therebetween and prevent unauthorized personnel from climbing over.
[0028] The side view of the hook 15 is an inverted "concave" - shaped structure. There is a through - type threaded connection between the tightening rod 16 and the hook 15. One end of the tightening rod 16 is provided with a rubber pad 17, which is beneficial for the stable installation of the first upright post 1 and the second upright post 2 on both sides of the protective door through the hook 15 and the tightening rod 16, avoiding tipping over and enhancing the subsequent protection stability.
[0029] Working principle: First, pull the first upright post 1 and the second upright post 2 to both sides according to the width of the protective door. When pulling the first upright post 1 and the second upright post 2 to both sides, at this time, the first upright post 1 and the second upright post 2 respectively drive the first cross - bar 3 and the second cross - bar 4 to be pulled out from the groove 6 on the extension rod 5. Then tighten the fastening bolts 7 until the fastening bolts 7 respectively tighten and lock the first cross - bar 3 and the second cross - bar 4. Then hang the first upright post 1 and the second upright post 2 on the upper edges on both sides of the protective door through the hooks 15. Turn the tightening rod 16, and the tightening rod 16 moves on the hook 15 through the thread until the tightening rod 16 drives the rubber pad 17 to tightly press against the surface of the edge of the protective door. At this time, the installation of the protection device at the position of the protective door is completed.
[0030] After the first upright post 1 and the second upright post 2 are installed on the protective door through the hook 15 and the tightening rod 16, pass the vertical rod 13 through the first cross - bar 3 and the second cross - bar 4 through the vertical hole 12 and screw on the nut 14 to prevent unauthorized personnel from climbing over through the gap between the first cross - bar 3 and the second cross - bar 4. Then pass the installation bolt 11 through the warning sign 10 and tighten it in the through - hole 9 on the cross - plate 8. At this time, the installation of the warning sign 10 on the extension rod 5 is completed, which is convenient for warning unauthorized personnel.
[0031] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A safety protection device for underground rail transit, characterized in that: It includes a first vertical column (1), a second vertical column (2) is arranged outside the first vertical column (1), a first cross bar (3) and a second cross bar (4) are respectively fixed on the surfaces of the first vertical column (1) and the second vertical column (2), an extension bar (5) is arranged between the first cross bar (3) and the second cross bar (4), slots (6) are formed at both ends of the extension bar (5), fastening bolts (7) are arranged at the openings of the slots (6), a cross plate (8) is arranged on the surface of the extension bar (5), a through hole (9) is formed on the cross plate (8), vertical holes (12) are formed on both the first cross bar (3) and the second cross bar (4), vertical rods (13) are arranged inside the vertical holes (12), hooks (15) are respectively fixed on the upper end surfaces of the first vertical column (1) and the second vertical column (2), and a top pressing rod (16) is arranged on the hook (15).
2. The safety protection device for underground rail transit according to claim 1, wherein: The first cross bar (3) and the second cross bar (4) are evenly distributed on the surfaces of the first vertical column (1) and the second vertical column (2) at equal intervals respectively.
3. The safety protection device for underground rail transit according to claim 1, wherein: One ends of the first cross bar (3) and the second cross bar (4) are both located inside the slot (6), and the first cross bar (3) and the second cross bar (4) and the extension bar (5) form a telescopic structure through the slot (6).
4. The safety protection device for underground rail transit according to claim 1, characterized in that: The fastening bolt (7) is in threaded connection with the extension bar (5), and one end of the fastening bolt (7) presses against the surfaces of the first cross bar (3) and the second cross bar (4).
5. The safety protection device for underground rail transit according to claim 1, wherein: A warning sign (10) is arranged outside the extension bar (5), and mounting bolts (11) are arranged on the warning sign (10).
6. The safety protection device for underground rail transit according to claim 1, wherein: The vertical rod (13) is of a "T" - shaped structure when viewed from the front, and the vertical rod (13) is respectively connected through the vertical holes (12) with the first cross bar (3) and the second cross bar (4).
7. A safety protection device for underground rail transit according to claim 1, characterized in that: Threads are formed at the lower end of the vertical rod (13) and nuts (14) are installed.
8. The safety protection device for underground rail transit according to claim 1, wherein: The side view of the hook (15) is an inverted "concave" - shaped structure, the top pressing rod (16) is in a through - type threaded connection with the hook (15), and a rubber pad (17) is arranged at one end of the top pressing rod (16).