Insulation connection structure for platform door

By using an insulated connection structure with nylon insulating columns and anti-corrosion coating, the electrical conductivity risk and corrosion problem of the platform screen door in the electrical environment are solved, achieving a safe and reliable connection and extending its service life.

CN223934694UActive Publication Date: 2026-02-24BEIJING JINGQIANRUI ELECTROMECHANICAL EQUIP CO LTD
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Patent Information

Application Number
CN202520796276.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-02-24
Estimated Expiration
2035-04-25

AI Technical Summary

Technical Problem

Existing platform screen doors mostly use metal frames and lack insulation, posing a risk of electrical conductivity in the electrical environment, affecting passenger safety. Furthermore, the connection structure is susceptible to corrosion, affecting stability and service life.

Method used

An insulated connection structure is adopted, including components such as a first fixed seat, connector, second fixed seat, clamping fixed seat, fixed rod, insulating column, and screw. The nylon insulating column is connected to the screw, and combined with anti-corrosion insulating coating, the platform door and the drive mechanism are insulated and isolated, and the strength and impact resistance of the connection structure are enhanced.

Benefits of technology

It effectively avoids electrical conductivity risks, ensures passenger safety, improves the stability and service life of the connection structure, and enhances corrosion resistance and impact resistance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an insulating connection structure for a platform door, which comprises a first fixing seat, a second fixing seat is arranged below one side of the first fixing seat, a connecting piece is arranged on one side, close to the second fixing seat, of the first fixing seat, the top of the second fixing seat is rotatably connected with a clamping fixing seat, and the clamping fixing seat is connected with a clamping groove. A fixing rod is arranged in the clamping fixing seat, and an insulating column is arranged on the side, close to each other, of the connecting piece and the fixing rod. The utility model relates to the technical field of platform doors, and solves the problems that in the prior art, a platform door mostly adopts a metal material frame and is connected with a platform door driving mechanism through a metal material connecting structure, insulation treatment is lacked, conductive risks exist in an electrical environment, potential threats are caused to passengers and subway operation safety, and the service life of the platform door is influenced. In the long-term use process, the platform door connecting structure is prone to corrosion, and the stability and the service life of the platform door connecting structure are affected.
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Description

Technical Field

[0001] This utility model relates to the field of platform screen door technology, specifically to an insulating connection structure for platform screen doors. Background Technology

[0002] Platform screen doors are safety isolation systems installed at the edge of platforms, primarily used to ensure passenger safety, optimize the station environment, and improve operational efficiency. When closed, they isolate the platform area from the track area, preventing objects from falling onto the tracks or entering the station. They also reduce the impact of noise and wind pressure from trains entering and leaving the station on passengers. In existing technologies, platform screen doors mostly use metal frames and are connected to the door drive mechanism via metal connecting structures, lacking insulation. This poses a risk of electrical conductivity in the electrical environment, potentially threatening passenger and subway operation safety. Furthermore, over long-term use, the connecting structure of platform screen doors is susceptible to corrosion, affecting their stability and service life. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides an insulating connection structure for platform screen doors. This solves the problems of existing technologies where platform screen doors mostly use metal frames and are connected to the platform screen door drive mechanism through metal connection structures, lacking insulation treatment. This poses a risk of electrical conductivity in the electrical environment, which is a potential threat to passenger and subway operation safety. Furthermore, the connection structure of the platform screen door is prone to corrosion during long-term use, affecting its stability and service life.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an insulating connection structure for a platform door, comprising a first fixed seat, a second fixed seat disposed below one side of the first fixed seat, a connector disposed on the side of the first fixed seat near the second fixed seat, a clamping fixed seat rotatably connected to the top of the second fixed seat, a fixed rod disposed inside the clamping fixed seat, an insulating post disposed on the side of the connector and the fixed rod close to each other, screws fixedly connected to the sides of the connector and the fixed rod near the insulating post, inner holes being formed at both ends of the insulating post, the screws being inserted into the inner walls of the inner holes, a limiting groove being provided inside the inner holes, a limiting nut being fitted to the inner wall of the limiting groove, the limiting nut being threadedly connected to the screw, a fastening nut being threadedly connected to the outer wall of the screw, an extension protrusion being provided at both ends of the insulating post, the fastening nut being fitted to the extension protrusion, an outer sleeve being fitted to the outer wall of the insulating post, end caps being threadedly connected to both ends of the outer sleeve, the end caps being fitted to the insulating post and the extension protrusions.

[0005] Preferably, the outer wall of the fixing rod is fitted with an insulating sleeve, the insulating sleeve is connected to the clamping fixing seat, the clamping fixing seat is provided with first fixing bolts on both sides of the top, and the outer wall of the fixing rod is provided with anti-slip texture.

[0006] Preferably, the first fixing seat has fixing holes equidistantly opened on both sides, and the inner walls of the fixing holes are fitted with anchor bolts. The outer walls of the first fixing seat are provided with connecting lugs on both sides, and a shaft is provided on the side of the connecting lugs that are close to each other. The shaft is fixedly connected to the connecting lugs by a second fixing bolt, and the shaft is rotatably connected to the connector.

[0007] Preferably, a limit block is provided at the end of the fixing rod away from the screw.

[0008] Preferably, the outer wall of the insulating column is provided with grooves at equal intervals.

[0009] This utility model provides an insulating connection structure for platform screen doors. It offers the following advantages: This insulating connection structure for platform screen doors, through the cooperation of a first fixed seat, a connector, a second fixed seat, a clamping fixed seat, a fixed rod, an insulating column, a screw, an inner hole, a limiting groove, a limiting nut, a fastening nut, an outer sleeve, an extension protrusion, and a plug plate, fixes the first fixed seat to the platform screen door frame and the second fixed seat to the platform screen door drive mechanism. Connecting the two screws to the nylon insulating column creates an insulating connection between the platform screen door and the platform screen door drive mechanism, effectively avoiding the risk of electrical conductivity in the electrical environment, thus ensuring the safety of passengers and subway operations. Furthermore, by inserting a metal tube coated with an anti-corrosion insulating paint onto the outside of the insulating column, the overall strength and impact resistance of the connection structure are improved, enabling the insulating connection structure to withstand greater external forces and pressures, ensuring the stability and service life of the platform screen door. This contributes to providing safe and reliable protection for subway operations in complex environments.

[0010] By coordinating the clamping base, fixing rod, insulating sleeve, first fixing bolt, and anti-slip grooves, and by fitting the insulating sleeve onto the outside of the fixing rod and inserting the fixing rod and insulating sleeve into the mounting hole of the clamping base, and then tightening the first fixing bolt on top of the clamping base, a stable fixation is formed between the fixing rod and the clamping base. This prevents the fixing rod from loosening or shifting during use. Furthermore, the excellent insulation performance and good corrosion resistance of the insulating sleeve further enhance the stability and insulation performance of the insulating connection structure, thus contributing to the enhanced safety and reliability of the insulating connection structure. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram showing the external appearance of the clamping fixing seat, fixing rod, and insulating sleeve in this utility model;

[0013] Figure 3 This is a cross-sectional view of the insulating column, inner hole, and limiting groove in this utility model.

[0014] Figure 4 This is a schematic diagram of the structure of the first fixed seat, the connecting ear plate, and the shaft in this utility model;

[0015] Figure 5 for Figure 1 A magnified view of a portion of region A in the middle.

[0016] In the diagram: 1. First fixing seat; 2. Connector; 3. Second fixing seat; 4. Clamping fixing seat; 5. Fixing rod; 6. Insulating post; 7. Screw; 8. Inner hole; 9. Limiting groove; 10. Limiting nut; 11. Fastening nut; 12. Outer sleeve; 13. Extension protrusion; 14. End plate; 15. Insulating sleeve; 16. First fixing bolt; 17. Anti-slip texture; 18. Fixing hole; 19. Anchor bolt; 20. Connecting ear plate; 21. Shaft; 22. Second fixing bolt; 23. Limiting block; 24. Groove. Detailed Implementation

[0017] 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.

[0018] In existing technologies, platform screen doors mostly use metal frames and are connected to the platform screen door drive mechanism through metal connection structures. They lack insulation treatment, which poses a risk of electrical conductivity in the electrical environment, posing a potential threat to passenger and subway operation safety. Furthermore, during long-term use, the platform screen door connection structure is susceptible to corrosion, affecting its stability and service life.

[0019] In view of this, the present invention provides an insulating connection structure for platform screen doors. Through the cooperation of a first fixed seat, a connector, a second fixed seat, a clamping fixed seat, a fixed rod, an insulating column, a screw, an inner hole, a limiting groove, a limiting nut, a fastening nut, an outer sleeve, an extension protrusion, and a plug plate, the first fixed seat is fixed to the platform screen door frame, and the second fixed seat is fixed to the platform screen door drive mechanism. Two screws connected to the first and second fixed seats are connected to a nylon insulating column, ensuring insulation between the two screws. This achieves an insulating connection between the platform screen door and the platform screen door drive mechanism, effectively avoiding the risk of electrical conductivity in the electrical environment and ensuring the safety of passengers and subway operations. Furthermore, by inserting a metal tube coated with an anti-corrosion insulating coating onto the outside of the insulating column, the overall strength and impact resistance of the connection structure are improved, enabling the insulating connection structure to withstand greater external forces and pressures, ensuring the stability and service life of the platform screen door.

[0020] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0021] Depend on Figure 1-5 It is known that an insulating connection structure for a platform screen door includes a first fixing seat 1, which is used to fix the platform screen door frame structure. A second fixing seat 3 is provided on the lower side of one side of the first fixing seat 1, which is used to fix the platform screen door drive mechanism or the ground. A connector 2 is provided on the side of the first fixing seat 1 near the second fixing seat 3. A clamping fixing seat 4 is rotatably connected to the top of the second fixing seat 3. A fixing rod 5 is provided inside the clamping fixing seat 4. An insulating post 6 is provided on the side where the connector 2 and the fixing rod 5 are close to each other. The insulating post 6 is made of nylon material, which has better impact resistance and wear resistance compared with ceramic material. Component 2 and fixing rod 5 are respectively fixedly connected to the side of insulating post 6 with screw rod 7. Both ends of insulating post 6 are provided with inner holes 8. Screw rod 7 is inserted into the inner wall of inner hole 8. Limit groove 9 is provided inside inner hole 8. Limit nut 10 is connected to the inner wall of limit groove 9. Limit nut 10 is threaded to screw rod 7. Fastening nut 11 is threaded to the outer wall of screw rod 7. Both ends of insulating post 6 are provided with extension protrusion 13. Fastening nut 11 is connected to extension protrusion 13. Outer tube 12 is connected to the outer wall of insulating post 6. Both ends of outer tube 12 are threaded to end plate 14. End plate 14 is connected to insulating post 6 and extension protrusion 13.

[0022] In the specific implementation process, it is worth noting that the first fixing seat 1 is used to fix the frame structure of the platform door, and the second fixing seat 3 is used to fix the platform door drive mechanism or the ground. Through the cooperation between the first fixing seat 1, the connecting piece 2, and the screw 7, a connecting assembly for fixing the platform door is formed. The screw 7 is securely connected to the first fixing seat 1 through the connecting piece 2, and the angle of the screw 7 can be adjusted according to actual needs, thereby meeting different connection requirements during the installation of the platform door. Through the cooperation between the second fixing seat 3, the clamping fixing seat 4, the fixing rod 5, and the screw 7, a connecting assembly for fixing the platform door drive mechanism or the ground is formed. By clamping the fixing rod 5 on the clamping fixing seat 4, the screw 7 is fixed to the platform door drive mechanism or the ground. The connection between the second fixing base 3 and the fixing position of the fixing rod 5 and the angle of clamping the fixing base 4 are adjusted to meet different connection requirements during the installation of the platform door. The insulating column 6 is made of nylon material, which has better impact resistance and wear resistance compared with ceramic material. Through the cooperation between the insulating column 6, screw 7, inner hole 8, limiting groove 9, limiting nut 10 and fastening nut 11, the inner hole 8 and limiting groove 9 are opened at both ends of the insulating column 6, and the two inner holes 8 are isolated from each other. The two screws 7 are inserted into the inner holes 8 respectively and screwed into the limiting nut 10. The fastening nut 11 is used to tighten and fix the two screws 7 at both ends of the insulating column 6, so that the two screws 7 are firmly connected to the insulating column 6 respectively. The limiting groove 9 and the limiting nut 10 are used to tighten and fix the two screws 7 to the insulating column 6. To prevent the screw 7 from falling off during prolonged use and improve the reliability of the connection structure, the first fixing seat 1 and the connecting rod 7 are positioned to prevent the screw 7 from falling off during prolonged use, thus improving the reliability of the connection structure. Simultaneously, insulation is formed between the two screws 7 to prevent electrical conductivity risks in the electrical environment. This is achieved through the cooperation of the insulating post 6, the outer sleeve 12, the extension protrusion 13, and the end cap 14. Both the outer sleeve 12 and the end cap 14 are made of metal and coated with an anti-corrosion insulating coating. By inserting the outer sleeve 12 onto the outside of the insulating post 6 and screwing the end cap 14 into both ends of the outer sleeve 12, insulation is formed between the outer sleeve 12 and the screw 7, improving the deformation resistance of the insulating post 6 and preventing bending deformation under external forces. This further enhances the overall strength of the connection structure. The fit between the connector 2, second fixing seat 3, clamping fixing seat 4, fixing rod 5, insulating column 6, screw 7, inner hole 8, limiting groove 9, limiting nut 10, fastening nut 11, outer sleeve 12, extension protrusion 13, and end plate 14, through the fixing of the first fixing seat 1 to the platform door frame and the second fixing seat 3 to the platform door drive mechanism, and the connection of the two screws 7 connected to the first fixing seat 1 and the second fixing seat 3 to the nylon insulating column 6, ensures that the two screws 7 form an insulating isolation, realizing the insulated connection between the platform door and the platform door drive mechanism, effectively avoiding the risk of electrical conductivity in the electrical environment, ensuring the safety of passengers and subway operations, and by inserting a metal tube coated with anti-corrosion insulating paint onto the outside of the insulating column 6.Improving the overall strength and impact resistance of the connection structure enables the insulated connection structure to withstand greater external forces and pressures, ensuring the stability and service life of the platform screen door;

[0023] Furthermore, an insulating sleeve 15 is fitted onto the outer wall of the fixing rod 5. The insulating sleeve 15 is preferably made of a high-strength insulating material, such as epoxy resin or silicone. These materials not only have excellent insulation properties, but also good wear resistance and corrosion resistance, which can effectively extend the service life of the insulating connection structure. The insulating sleeve 15 is connected to the clamping fixing seat 4. The clamping fixing seat 4 is provided with first fixing bolts 16 on both sides of the top. The outer wall of the fixing rod 5 is provided with anti-slip texture 17. The anti-slip texture 17 is used to improve the friction of the outer wall of the fixing rod 5, ensure the stability of the fixing rod 5 when clamped and fixed, and avoid the fixing rod 5 from loosening or displacement due to external force, thereby further improving the stability and safety of the insulating connection structure.

[0024] In the specific implementation process, it is worth noting that the insulating sleeve 15 is made of rubber, such as neoprene or fluororubber, which not only has excellent insulation properties but also good corrosion resistance and aging resistance, effectively extending the service life of the insulating connection structure. The anti-slip texture 17 is used to increase the friction of the outer wall of the fixing rod 5, ensuring the stability of the fixing rod 5 when clamped and fixed, and preventing the fixing rod 5 from loosening or displacing due to external forces, further improving the stability and safety of the insulating connection structure. This is achieved by clamping the fixing seat 4, fixing rod 5, insulating sleeve 15, first fixing bolt 16, and... The anti-slip texture 17 is fitted together by inserting the insulating sleeve 15 onto the outside of the fixing rod 5, inserting the fixing rod 5 and the insulating sleeve 15 into the mounting hole of the clamping fixing seat 4, and tightening the first fixing bolt 16 on the top of the clamping fixing seat 4 to achieve stable fixation between the fixing rod 5 and the clamping fixing seat 4, preventing the fixing rod 5 from loosening or shifting during use. Furthermore, by setting the insulating sleeve 15 between the clamping fixing seat 4 and the fixing rod 5, the excellent insulation performance and good corrosion resistance of the insulating sleeve 15 are utilized to further enhance the stability and insulation performance of the insulating connection structure.

[0025] Furthermore, fixing holes 18 are equally spaced on both sides of the first fixing seat 1, and anchor bolts 19 are connected to the inner wall of the fixing holes 18. Connecting ear plates 20 are provided on both sides of the outer wall of the first fixing seat 1. A shaft 21 is provided on the side of the connecting ear plates 20 that is close to each other. The shaft 21 is fixedly connected to the connecting ear plate 20 by the second fixing bolt 22, and the shaft 21 is rotatably connected to the connecting piece 2.

[0026] In the specific implementation process, it is worth noting that through the cooperation between the first fixed seat 1, the fixed hole 18 and the anchor bolt 19, by inserting the anchor bolt 19 into the fixed hole 18 and fixing it to the frame of the platform door, a stable connection between the first fixed seat 1 and the platform door is achieved, ensuring the stability of the first fixed seat 1 when pulling the platform door to move. Through the cooperation between the first fixed seat 1, the connector 2, the connecting ear plate 20, the shaft 21 and the second fixing bolt 22, by setting the shaft 21 between the connecting ear plates 20, the connector 2 can rotate around the shaft 21, thereby improving the flexibility of the connection structure, making it easy to adjust the angle of the connector 2 according to actual needs, and improving the connection strength between the connector 2 and the first fixed seat 1, ensuring the adaptability and stability of the insulating connection structure.

[0027] Furthermore, a limiting block 23 is provided at the end of the fixing rod 5 away from the screw 7. The limiting block 23 is used to limit the end of the fixing rod 5 to prevent the fixing rod 5 from falling off during use.

[0028] In the specific implementation process, it is worth noting that the limiting block 23 is used to limit the end of the fixing rod 5 to prevent the fixing rod 5 from falling off during use;

[0029] Furthermore, grooves 24 are provided at equal intervals on the outer wall of the insulating post 6. The grooves 24 are used to reduce stress concentration caused by cold shrinkage or external force on the nylon insulating post 6, improve the overall strength and durability of the insulating post 6, and increase the friction between the insulating post 6 and the outer sleeve 12, making the connection between the two more stable.

[0030] In the specific implementation process, it is worth noting that the groove 24 is used to reduce the stress concentration of the nylon insulating post 6 caused by cold contraction or external force, improve the overall strength and durability of the insulating post 6, and increase the friction between the insulating post 6 and the outer sleeve 12, making the connection between the two more stable.

[0031] 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. An insulating connection structure for a platform screen door, comprising a first fixing seat (1), characterized in that: A second fixing seat (3) is provided below one side of the first fixing seat (1). A connector (2) is provided on the side of the first fixing seat (1) near the second fixing seat (3). A clamping fixing seat (4) is rotatably connected to the top of the second fixing seat (3). A fixing rod (5) is provided inside the clamping fixing seat (4). An insulating post (6) is provided on the side of the connector (2) and the fixing rod (5) that are close to each other. A screw (7) is fixedly connected to the side of the connector (2) and the fixing rod (5) near the insulating post (6). An inner hole (8) is opened inside both ends of the insulating post (6). The screw (7) is inserted into the inner hole (8). The inner wall of the inner hole (8) is provided with a limiting groove (9). The inner wall of the limiting groove (9) is connected to a limiting nut (10). The limiting nut (10) is threadedly connected to the screw (7). The outer wall of the screw (7) is threadedly connected to a fastening nut (11). Both ends of the insulating column (6) are provided with an extension protrusion (13). The fastening nut (11) is connected to the extension protrusion (13). The outer wall of the insulating column (6) is connected to an outer sleeve (12). Both ends of the outer sleeve (12) are threadedly connected to a plug plate (14). The plug plate (14) is connected to the insulating column (6) and the extension protrusion (13).

2. The insulating connection structure for a platform door according to claim 1, characterized in that: An insulating sleeve (15) is fitted onto the outer wall of the fixing rod (5). The insulating sleeve (15) is connected to the clamping fixing seat (4). The clamping fixing seat (4) has a first fixing bolt (16) on both sides of its top. The outer wall of the fixing rod (5) is provided with anti-slip texture (17).

3. The insulating connection structure for a platform door according to claim 1, characterized in that: The first fixing seat (1) has fixing holes (18) equidistantly opened on both sides. Anchor bolts (19) are connected to the inner wall of the fixing holes (18). Connecting ear plates (20) are provided on both sides of the outer wall of the first fixing seat (1). A shaft (21) is provided on the side of the connecting ear plates (20) that are close to each other. The shaft (21) is fixedly connected to the connecting ear plate (20) by a second fixing bolt (22). The shaft (21) is rotatably connected to the connecting piece (2).

4. The insulating connection structure for a platform door according to claim 1, characterized in that: A limit block (23) is provided at the end of the fixing rod (5) away from the screw (7).

5. An insulating connection structure for a platform screen door according to claim 1, characterized in that: The outer wall of the insulating column (6) is provided with grooves (24) at equal intervals.