Aluminum profile structural component for rail transit
By incorporating a sliding groove, ball joint, spring, and touch switch into the lower connecting component of the aluminum profile structure, the problem of track deformation failing to trigger an alarm was solved, enabling alarm prompts for minor deformations and improving the safety of rail transit.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU NANYANG ALUMINUM CO LTD
- Filing Date
- 2025-09-26
- Publication Date
- 2026-08-04
AI Technical Summary
The existing aluminum profile structural components used in rail transit cannot provide timely alarms when deformation occurs at the other end of the track, leading to an increased risk of accidents.
A second slide, a ball joint, a spring, a pin, and a touch switch are installed on the lower connecting component of the aluminum profile structure. The touch switch is activated by the compression of the ball joint to provide an alarm indication when there is slight deformation.
It enables timely alarms when minor track deformation occurs due to prolonged train travel, reducing the risk of accidents and improving safety.
Smart Images

Figure CN224595163U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rail safety technology, and in particular to an aluminum profile structural component for rail transit. Background Technology
[0002] In the field of rail transit, a typical aluminum profile structural component is the intelligent vibration-damping aluminum profile structural component used for track curve connections. Its design integrates lightweight, high strength and intelligent monitoring functions, and it is widely used in areas of subway, high-speed rail and other lines.
[0003] The alarm prompts of existing aluminum profile structural components for rail transit are mostly single-directional alarms. When deformation occurs at the other end of the track, no alarm prompts are given, which can lead to major accidents. Utility Model Content
[0004] The purpose of this utility model is to provide an aluminum profile structural component for rail transit. By setting a second sliding groove, a spherical connecting rod, a spring, a pin, and a touch switch on the lower connecting component, when the track undergoes slight deformation due to long-term train operation, the upper connecting component presses on the spherical connecting rod, causing the pin on the spherical connecting rod to touch the switch, triggering an alarm to remind staff to carry out timely maintenance.
[0005] To achieve the above objectives, an aluminum profile structural component for rail transit is provided, including a track body. One side of the track body has a through hole, and a first bolt is threaded into the through hole. A first anti-slip pad is provided on the first bolt, and a first nut is provided on the first anti-slip pad, with the first nut threadedly connected to the first bolt. Upper connecting members are provided on both sides of the upper part of the track body, through which the first bolt passes. Lower connecting members are provided on both sides of the lower part of the track body, and the upper and lower connecting members are fixed by welding. A second sliding groove is provided on the lower connecting member, and a spherical connecting rod is provided inside the second sliding groove. One end of the spherical connecting rod is fixedly connected to the upper connecting member. A touch switch is fixedly connected to the right inner wall of the second sliding groove. A spring is provided inside the second sliding groove, with one end of the spring fixedly connected to the ball of the spherical connecting rod and the other end fixedly connected to the right inner wall of the second sliding groove. A pin is fixedly connected to the ball of the spherical connecting rod, and the pin is disposed inside the spring.
[0006] According to the aforementioned aluminum profile structural component for rail transit, a first buffer pad is fixedly connected to the upper connecting member, and the first buffer pad is tightly fitted to the upper part of the track body.
[0007] According to the aforementioned aluminum profile structural component for rail transit, a second buffer pad is fixedly connected to the lower connecting member, and the second buffer pad is tightly fitted to the track body.
[0008] According to the aforementioned aluminum profile structural component for rail transit, a connecting plate is provided on the left side of the lower connecting member.
[0009] According to the aforementioned aluminum profile structural component for rail transit, the lower connecting member is provided with a right shell on both its front and rear sides, and the connecting plate is provided with a left shell on both its front and rear sides. The left and right shells are each provided with a first sliding groove, and a sliding plate is slidably connected inside the first sliding groove. A pull plate is fixedly connected above the sliding plate. The sliding plate is provided with two round holes, and a third bolt is threaded inside the round holes. The two third bolts are respectively fixed to the lower connecting member and the connecting plate.
[0010] According to the aforementioned aluminum profile structural component for rail transit, an embedded part is provided below the connecting plate.
[0011] According to the aforementioned aluminum profile structural component for rail transit, a plurality of second bolts are fixedly connected above the embedded part, and the second bolts pass through the connecting plate. A second anti-slip pad is provided above the second bolts, and a second bolt is provided on the second anti-slip pad. A second nut is threadedly connected to the second bolt.
[0012] According to the aforementioned aluminum profile structural component for rail transit, the upper connecting component, lower connecting component, embedded part, and connecting plate are all made of aluminum alloy material.
[0013] The above-mentioned solution has the following beneficial effects:
[0014] This utility model, by setting a second slide groove, a spherical connecting rod, a spring, a pin, and a trigger switch on the lower connecting component, can trigger an alarm when the track undergoes slight deformation due to prolonged train travel. This is achieved by the upper connecting component pressing the spherical connecting rod, causing the pin on the spherical connecting rod to trigger the switch, thus alerting staff to perform timely repairs.
[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0017] Figure 1 This is an isometric drawing of an aluminum profile structural component for rail transit according to this utility model;
[0018] Figure 2 This is a left view of an aluminum profile structural component for rail transit according to the present invention;
[0019] Figure 3 This is a cross-sectional view of an aluminum profile structural component for rail transit according to the present invention;
[0020] Figure 4 This is a partial part drawing of an aluminum profile structural component for rail transit according to this utility model.
[0021] Legend:
[0022] The components are as follows: 1. Track body; 2. Lower connecting component; 3. First bolt; 4. First nut; 5. Upper connecting component; 6. First buffer pad; 7. Connecting plate; 8. Second bolt; 9. Second nut; 10. Embedded part; 11. Left shell; 12. Right shell; 13. First anti-slip pad; 14. Second anti-slip pad; 15. Second buffer pad; 16. Ball joint; 17. Spring; 18. Pin; 19. Touch switch; 20. Round hole; 21. Pull plate; 22. Slide plate; 23. Third bolt; 24. First slide groove; 25. Second slide groove. Detailed Implementation
[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0024] Reference Figure 1-4 This utility model discloses an aluminum profile structural component for rail transit, comprising a track body 1. One side of the track body 1 has a through hole for placing a first bolt 3, and the through hole is threaded with the first bolt 3 to fix upper and lower connecting components 2. The first bolt 3 has a first anti-slip pad 13 to prevent a first nut 4 from falling off. The first anti-slip pad 13 has the first nut 4 threadedly connected to the first bolt 3. Upper connecting components 5 are provided on both sides of the upper part of the track body 1, and the first bolt 3 passes through the upper connecting components 5. Lower connecting components 2 are provided on both sides of the lower part of the track body 1, and the upper connecting components 5 and the lower connecting components 2 are fixed by welding. The connecting component 2 is provided with a second slide groove 25, which allows the spherical connecting rod 16 to slide when it is compressed and deformed. The spherical connecting rod 16 is provided inside the second slide groove 25, and one end of the spherical connecting rod 16 is fixedly connected to the upper connecting component 5. A touch switch 19 is fixedly connected to the right inner wall of the second slide groove 25 to sound an alarm so that the staff can repair it in time. A spring 17 is provided inside the second slide groove 25 to prevent the alarm from being accidentally triggered by slight vibration. One end of the spring 17 is fixedly connected to the ball of the spherical connecting rod 16, and the other end of the spring 17 is fixedly connected to the right inner wall of the second slide groove 25. A pin 18 is fixedly connected to the ball of the spherical connecting rod 16, and the pin 18 is located inside the spring 17.
[0025] A first buffer pad 6 is fixedly connected to the upper connecting member 5 to reduce slight vibrations of the track, and the first buffer pad 6 is tightly fitted to the top of the track body 1. A second buffer pad 15 is fixedly connected to the lower connecting member 2, and the second buffer pad 15 is tightly fitted to the track body 1. A connecting plate 7 is provided on the left side of the lower connecting member 2. Right housings 12 are provided on both the front and rear sides of the lower connecting member 2. Left housings 11 are provided on both the front and rear sides of the connecting plate 7. A first sliding groove 24 is provided inside the left housing 11 and the right housing 12. A sliding plate 22 is slidably connected inside the first sliding groove 24. A pull plate 21 is fixedly connected above the sliding plate 22. Two pull plates are provided on the sliding plate 22. A circular hole 20 has a threaded connection to a third bolt 23, which firmly fixes the connecting plate 7 and the lower connecting member 2. Two third bolts 23 are fixed to the lower connecting member 2 and the connecting plate 7 respectively. An embedded part 10 is provided below the connecting plate 7. Multiple second bolts 8 are fixedly connected above the embedded part 10 to fix the connecting plate 7. The second bolts 8 pass through the connecting plate 7. A second anti-slip pad 14 is provided above the second bolts 8. The second anti-slip pad 14 is provided with the second bolts 8. The second nut 9 is threadedly connected to the second bolts 8. The upper connecting member 5, the lower connecting member 2, the embedded part 10 and the connecting plate 7 are all made of aluminum alloy.
[0026] Working principle: First, according to the coordinates marked on the design drawings, the embedded part 10 is embedded into the track foundation concrete. During the embedding process, the levelness of the top surface of the embedded part 10 needs to be calibrated with a level. After the concrete has cured to the design strength, the subsequent assembly stage begins. After the embedded part 10 is fixed, the connecting plate 7 is taken out and precisely connected and fixed to the embedded bolt of the embedded part 10 using the second nut 9. Note that a second anti-slip pad 14 needs to be installed between the second nut 9 and the connecting plate 7 to prevent loosening due to train vibration later. At the same time, the lower connecting component 2 is temporarily fixed to the track body 1 using a positioning pin. Then, the operator needs to pull the sliding plate 22 inside the left shell 11 and push it at a uniform speed along the second sliding groove 25 until the sliding plate 22 completely fills the right shell 12. Then, the third bolt 23 is tightened twice to form a rigid connection between the connecting plate 7 and the lower connecting component 2. Next, the upper connecting component 5 is installed above the track body 1 and its position is adjusted. The clamping surfaces of the lower connecting member 2 and the upper connecting member 5 are fully fitted together. Then, the butt joint of the two is welded using TIG argon arc welding. Before welding, the oxide layer in the weld area needs to be cleaned. After welding, a penetration test is required to ensure that there are no defects such as pores or cracks. After welding is completed and cooled to room temperature, the first bolt 3 is removed, the first nut 4 is put on, and the torque is gradually applied using a cross-symmetrical tightening method to make the upper connecting member 5 and the lower connecting member 2 fit tightly against the track body 1, forming a bidirectional clamping and fixing of the track. When the track body 1 shifts due to the lateral impact force of the train, the lower connecting member 2 will bend slightly with the deformation of the track, thereby squeezing the ball connecting rod 16 that is hinged to it. When the squeezing amount reaches the preset threshold, the pin 18 at the end of the ball connecting rod 16 will accurately touch the trigger switch 19. At this time, the trigger switch 19 will simultaneously output an alarm to remind the staff that there is a risk of track shift and that they need to come to the scene in time for inspection and calibration to avoid the fault from expanding.
[0027] In the description of this utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Furthermore, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An aluminum profile structural member for rail transportation, comprising: The track body (1) is characterized in that a through hole is provided on one side of the track body (1), and a first bolt (3) is threadedly connected inside the through hole. A first anti-slip pad (13) is provided on the first bolt (3), and a first nut (4) is provided on the first anti-slip pad (13). The first nut (4) is threadedly connected to the first bolt (3). Upper connecting members (5) are provided on both sides of the upper part of the track body (1), and the first bolt (3) passes through the upper connecting members (5). Lower connecting members (2) are provided on both sides of the lower part of the track body (1), and the upper connecting members (5) and the lower connecting members (2) are fixed by welding. The component (2) is provided with a second slide groove (25), and a ball-shaped connecting rod (16) is provided inside the second slide groove (25). One end of the ball-shaped connecting rod (16) is fixedly connected to the upper connecting component (5). A touch switch (19) is fixedly connected to the right inner wall of the second slide groove (25). A spring (17) is provided inside the second slide groove (25). One end of the spring (17) is fixedly connected to the ball of the ball-shaped connecting rod (16), and the other end of the spring (17) is fixedly connected to the right inner wall of the second slide groove (25). A pin (18) is fixedly connected to the ball of the ball-shaped connecting rod (16), and the pin (18) is located inside the spring (17).
2. The aluminum profile structural component for rail transit according to claim 1, characterized in that, The upper connecting member (5) is fixedly connected to a first buffer pad (6), and the first buffer pad (6) is tightly attached to the top of the track body (1).
3. The aluminum profile structural component for rail transit according to claim 1, characterized in that, A second buffer pad (15) is fixedly connected to the lower connecting member (2), and the second buffer pad (15) is tightly attached to the track body (1).
4. The aluminum profile structural component for rail transit according to claim 1, characterized in that, The lower connecting member (2) has a connecting plate (7) on its left side.
5. The aluminum profile structural component for rail transit according to claim 4, characterized in that, The lower connecting member (2) has a right shell (12) on both the front and rear sides, and the connecting plate (7) has a left shell (11) on both the front and rear sides. The left shell (11) and the right shell (12) are both provided with a first sliding groove (24). A sliding plate (22) is slidably connected inside the first sliding groove (24). A pull plate (21) is fixedly connected above the sliding plate (22). The sliding plate (22) is provided with two round holes (20). A third bolt (23) is threaded inside the round hole (20), and the two third bolts (23) are fixed on the lower connecting member (2) and the connecting plate (7) respectively.
6. The aluminum profile structural component for rail transit according to claim 4, characterized in that, An embedded part (10) is provided below the connecting plate (7).
7. The aluminum profile structural component for rail transit according to claim 6, characterized in that, Multiple second bolts (8) are fixedly connected above the embedded part (10), and the second bolts (8) pass through the connecting plate (7). A second anti-slip pad (14) is provided above the second bolts (8), and the second bolts (8) are provided on the second anti-slip pad (14). The second nut (9) is threadedly connected to the second bolts (8).
8. The aluminum profile structural component for rail transit according to claim 1, characterized in that, The upper connecting component (5), the lower connecting component (2), the embedded part (10), and the connecting plate (7) are all made of aluminum alloy.