A subway rigid catenary suspension device
By adding friction between the frame and clamping device to the rigid contact wire suspension device of the subway, the problems of few installation nodes and poor stability were solved, and higher installation strength and stability were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIYUAN CHINA RAILWAY RAIL TRANSIT CONSTR & OPERATION CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional subway rigid contact network suspension devices have fewer installation nodes, resulting in low installation strength, and fewer clamping devices with fixed structures, leading to poor stability during use.
By installing a card frame on the top of the base plate and fitting an extension plate inside the card frame, welding a first external threaded rod and a pressing turntable, and increasing friction using an mounting plate and an anti-slip pad, the stability of the fixed structure is increased. A fixing rod and a clamping plate are welded onto the clamping device, and friction is increased through the threaded rod and nut.
This improved the installation strength and stability of the device, strengthened the installation nodes, expanded the contact area, and ensured the stability of the device during long-term use.
Smart Images

Figure CN224528477U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of subway catenary suspension technology, and particularly relates to a subway rigid catenary suspension device. Background Technology
[0002] Overhead contact wire power supply or overhead contact wire is one of the two commonly used power supply network methods for electrified railways. The other power supply method is third rail power supply. In railway and urban rail transit systems, the rigid contact wire suspension device of the subway is used for power supply.
[0003] The rigid contact wire suspension devices currently available for subways have the following problems in actual use:
[0004] 1. In actual use, traditional rigid contact wire suspension devices for subways have fewer installation nodes. As a result, after installation, there are fewer connections between the device and the installation location, leading to lower installation strength.
[0005] 2. In most subway rigid contact wire suspension devices, the clamping device is only fixed by bolts and has few installation and fixing structures. After a long period of use, the clamping device may shift, resulting in poor stability during use. Utility Model Content
[0006] The purpose of this utility model is to provide a rigid contact wire suspension device for subways to solve the technical problems mentioned in the background art.
[0007] To achieve the above objectives, the specific technical solution of this utility model is as follows: A rigid contact wire suspension device for subways includes a base plate and a suspension device body. The suspension device body is installed on the top of the base plate, and a frame is installed on the top of the base plate. A groove is opened on the top of the frame, and an extension plate is sleeved inside the frame. A first external threaded rod is welded to the top of the extension plate. The first external threaded rod is located inside the groove, and a pressing turntable is sleeved on the surface of the first external threaded rod. One end of the pressing turntable is attached to the top of the frame. An installation plate is fixedly connected to the bottom of the extension plate, and a first groove is opened on the bottom of the installation plate. A first anti-slip pad is adhered inside the first groove.
[0008] Preferably, a clamping device is sleeved on the surface of the suspension device body. A fixing rod is welded to one end of the clamping device. The fixing rod is distributed in a ring. A first clamping plate and a second clamping plate are welded to the other end of the fixing rod. A third external threaded rod is welded to the side of the first clamping plate. The third external threaded rod passes through the second clamping plate. A second nut is sleeved on the surface of the third external threaded rod. One end of the second nut is attached to the surface of the second clamping plate. Anti-slip blocks are welded inside both the first clamping plate and the second clamping plate.
[0009] Preferably, a second external threaded rod is welded to the top of the base plate, a fixing plate is welded to the side of the frame, the second external threaded rod passes through the fixing plate, a first nut is sleeved on the surface of the second external threaded rod, and one end of the first nut is attached to the top of the fixing plate.
[0010] Preferably, a first baffle is welded to the other end of the first external threaded rod, the mounting plates are symmetrically distributed, and the extrusion turntable is located between the first baffle and the frame.
[0011] Preferably, a second baffle is welded to the other end of the third external threaded rod, the third external threaded rod is symmetrically distributed, and the second nut is located between the second baffle and the second clamping plate.
[0012] Preferably, a second groove is formed at the bottom of the base plate, and a second anti-slip pad is adhered inside the second groove.
[0013] The rigid contact wire suspension device for subways according to this utility model has the following advantages:
[0014] 1. A rigid contact wire suspension device for subways is provided, comprising: a suspension device body installed on top of a base plate; a frame installed on top of the base plate; a groove opened on top of the frame; an extension plate fitted inside the frame; and a first external threaded rod welded to the top of the extension plate. The first external threaded rod is located inside the groove, and a pressing turntable is fitted onto the surface of the first external threaded rod. One end of the pressing turntable is attached to the top of the frame, and an installation plate is fixedly connected to the bottom of the extension plate. A first groove is opened at the bottom of the installation plate, and a first anti-slip pad is adhered inside the groove. When the device is installed, the extension plate can be moved through the groove, thereby moving the installation plate. When the installation plate is moved to a suitable position, the pressing turntable can be rotated to increase the friction between the extension plate and the frame to fix the extension plate. Then, the base plate can be installed again through the installation plate. The installation plate increases the number of installation points and expands the contact area, thereby improving the strength of the device after installation.
[0015] 2. This rigid contact wire suspension device for subways comprises a clamping device fitted onto the surface of the suspension device body, with a fixing rod welded to one end of the clamping device. The fixing rod is arranged in a ring shape, and a first clamping plate and a second clamping plate are welded to the other end of the fixing rod. Simultaneously, a third external threaded rod is welded to the side of the first clamping plate, penetrating the second clamping plate. A second nut is fitted onto the surface of the third external threaded rod, with one end of the second nut fitting against the surface of the second clamping plate. Anti-slip blocks are welded inside both the first and second clamping plates. When the clamping device is moved, it can be fixed using its original fixing structure first, and then the second nut is rotated, causing the first and second clamping plates to be squeezed together. The anti-slip blocks increase the friction between the first and second clamping plates and the suspension device body, thereby fixing the clamping device again and improving its stability. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the extension plate structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the mounting plate structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the second clamping plate structure of this utility model;
[0021] Figure 5 For the present utility model Figure 2 Enlarged view of section A in the middle.
[0022] The markings in the diagram are as follows: 1. Base plate; 2. Suspension device body; 3. Clip frame; 4. Slide groove; 5. Extension plate; 6. First external threaded rod; 7. Extrusion turntable; 8. First baffle; 9. Fixing plate; 10. Second external threaded rod; 11. First nut; 12. Clamping device; 13. Fixing rod; 14. First clamping plate; 15. Second clamping plate; 16. Third external threaded rod; 17. Second nut; 18. Second baffle; 19. Anti-slip block; 20. First groove; 21. First anti-slip pad; 22. Second groove; 23. Second anti-slip pad; 24. Mounting plate. Detailed Implementation
[0023] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0026] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," 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, an electrical connection, or a communication 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. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0027] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.
[0028] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a subway rigid contact wire suspension device.
[0029] like Figure 1-5 As shown, this utility model discloses a rigid contact wire suspension device for subways, comprising a base plate 1 and a suspension device body 2. The suspension device body 2 is installed on the top of the base plate 1, and a frame 3 is installed on the top of the base plate 1. A groove 4 is formed on the top of the frame 3, and an extension plate 5 is sleeved inside the frame 3. A first external threaded rod 6 is welded to the top of the extension plate 5 and is located inside the groove 4. A pressing turntable 7 is sleeved on the surface of the first external threaded rod 6, and one end of the pressing turntable 7 is attached to the top of the frame 3. An installation plate 24 is fixedly connected to the bottom of the extension plate 5. By setting the installation plate 24, when the device is installed, the extension plate 5 can be moved through the groove 4, thereby moving the installation plate 24. After the plate 24 is moved to the appropriate position, the rotating and pressing turntable 7 can be rotated to fix the extension plate 5 by increasing the friction between the extension plate 5 and the frame 3. Then, the base plate 1 can be installed again by the mounting plate 24. The mounting plate 24 can increase the number of installation points of the device and expand the contact area, thereby improving the strength of the device after installation. The bottom of the mounting plate 24 has a first groove 20, and the first anti-slip pad 21 is bonded inside the first groove 20. By installing the first anti-slip pad 21, the friction between the mounting plate 24 and the installation position can be increased, thereby improving the stability of the device after installation and making it more stable during use.
[0030] A clamping device 12 is sleeved onto the surface of the suspension device body 2. A fixing rod 13 is welded to one end of the clamping device 12. The fixing rod 13 is arranged in a ring. A first clamping plate 14 and a second clamping plate 15 are welded to the other end of the fixing rod 13. A third external threaded rod 16 is welded to the side of the first clamping plate 14. The third external threaded rod 16 passes through the second clamping plate 15. A second nut 17 is sleeved on the surface of the third external threaded rod 16. One end of the second nut 17 is attached to the surface of the second clamping plate 15. Anti-slip blocks 19 are welded inside both the first clamping plate 14 and the second clamping plate 15. By installing the first clamping plate 14, the second clamping plate 15, the third external threaded rod 16, and the second nut 17, when moving the clamping device 12, its original fixing structure can be used to fix it first, and then the second nut 17 can be rotated to make the first clamping plate 14 and the second clamping plate 15 press together. The anti-slip block 19 is used to increase the friction between the first clamping plate 14 and the second clamping plate 15 and the suspension device body 2, thereby fixing the clamping device 12 again and improving the stability of the clamping device 12.
[0031] A second external threaded rod 10 is welded to the top of the base plate 1, and a fixing plate 9 is welded to the side of the frame 3. The second external threaded rod 10 passes through the fixing plate 9, and a first nut 11 is sleeved on the surface of the second external threaded rod 10. One end of the first nut 11 is attached to the top of the fixing plate 9. By installing the second external threaded rod 10, when installing the frame 3, the second external threaded rod 10 can pass through the fixing plate 9, and then a nut is sleeved on the surface of the second external threaded rod 10 until one end of the nut is attached to the top of the fixing plate 9. At this time, the frame 3 can be fixed, ensuring the stability of the frame 3 during use.
[0032] The first external threaded rod 6 has a first baffle 8 welded to the other end. The mounting plates 24 are symmetrically distributed. The extrusion turntable 7 is located between the first baffle 8 and the frame 3. By installing the first baffle 8, the extrusion turntable 7 can be limited, so that the extrusion turntable 7 will not detach from the first external threaded rod 6, which is very convenient to use.
[0033] The other end of the third external threaded rod 16 is welded with a second baffle 18. The third external threaded rod 16 is symmetrically distributed. The second nut 17 is located between the second baffle 18 and the second clamping plate 15. By installing the second baffle 18, the second nut 17 can be limited, so that the second nut 17 will not come off the third external threaded rod 16, which is very convenient to use.
[0034] A second groove 22 is formed at the bottom of the base plate 1, and a second anti-slip pad 23 is bonded inside the second groove 22. By installing the second anti-slip pad 23, the friction between the base plate 1 and the installation position can be increased, thereby improving the stability of the device after installation.
[0035] The working principle of this subway rigid contact wire suspension device is as follows: When using this device, the frame 3 should be installed first. During installation, the second external threaded rod 10 can be used to penetrate the fixing plate 9. Then, a nut is fitted onto the surface of the second external threaded rod 10 until one end of the nut is attached to the top of the fixing plate 9. This provides a secure installation for the frame 3, and the device can then be used. The suspension device body 2 is installed on the top of the base plate 1, and the frame 3 is installed on the top of the base plate 1. A groove 4 is opened on the top of the frame 3. Simultaneously, an extension plate 5 is fitted inside the frame 3, and a first external... The threaded rod 6 is located inside the slide groove 4, and the extrusion turntable 7 is fitted onto the surface of the threaded rod 6. One end of the extrusion turntable 7 is attached to the top of the frame 3, and the mounting plate 24 is fixedly connected to the bottom of the extension plate 5. A first groove 20 is opened at the bottom of the mounting plate 24, and a first anti-slip pad 21 is adhered inside the first groove 20. When installing this device, the extension plate 5 can be moved through the slide groove 4, thereby moving the mounting plate 24. After the mounting plate 24 moves to the appropriate position, the extrusion turntable 7 can be rotated to increase the friction between the extension plate 5 and the frame 3, thus extending the extension plate. 5. After fixing, the base plate 1 can be reinstalled using the mounting plate 24. The mounting plate 24 increases the number of installation points and expands the contact area, thereby improving the strength of the device after installation. Furthermore, since the clamping device 12 is sleeved on the surface of the suspension device body 2, and a fixing rod 13 is welded to one end of the clamping device 12, the fixing rod 13 is arranged in a ring shape. A first clamping plate 14 and a second clamping plate 15 are welded to the other end of the fixing rod 13. Simultaneously, a third external threaded rod 16 is welded to the side of the first clamping plate 14, penetrating the second clamping plate 15. The second nut 17 is sleeved on the surface of the grooved rod 16. At this time, one end of the second nut 17 is attached to the surface of the second clamping plate 15. Anti-slip blocks 19 are welded inside the first clamping plate 14 and the second clamping plate 15. When the clamping device 12 is moved, it can be fixed by its original fixing structure first, and then the second nut 17 is rotated, so that the first clamping plate 14 and the second clamping plate 15 are squeezed. The anti-slip blocks 19 increase the friction between the first clamping plate 14 and the second clamping plate 15 and the suspension device body 2, thereby fixing the clamping device 12 again and improving the stability of the clamping device 12.
[0036] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A rigid contact wire suspension device for subways, comprising a base plate (1) and a suspension device body (2), wherein the suspension device body (2) is mounted on the top of the base plate (1), characterized in that: The base plate (1) is equipped with a card frame (3) on top. The card frame (3) has a groove (4) on top. An extension plate (5) is sleeved inside the card frame (3). A first external thread rod (6) is welded to the top of the extension plate (5). The first external thread rod (6) is located inside the groove (4). An extrusion turntable (7) is sleeved on the surface of the first external thread rod (6). One end of the extrusion turntable (7) is attached to the top of the card frame (3). An installation plate (24) is fixedly connected to the bottom of the extension plate (5). A first groove (20) is opened at the bottom of the installation plate (24). A first anti-slip pad (21) is bonded inside the first groove (20).
2. The subway rigid contact wire suspension device according to claim 1, characterized in that: The suspension device body (2) is fitted with a clamping device (12). A fixing rod (13) is welded to one end of the clamping device (12). The fixing rod (13) is arranged in a ring. The other end of the fixing rod (13) is welded with a first clamping plate (14) and a second clamping plate (15). A third external thread rod (16) is welded to the side of the first clamping plate (14). The third external thread rod (16) passes through the second clamping plate (15). A second nut (17) is fitted onto the surface of the third external thread rod (16). One end of the second nut (17) is attached to the surface of the second clamping plate (15). Anti-slip blocks (19) are welded inside the first clamping plate (14) and the second clamping plate (15).
3. The subway rigid contact wire suspension device according to claim 1, characterized in that: The bottom plate (1) is welded to the top of the second external thread rod (10), the card frame (3) is welded to the side of the fixing plate (9), the second external thread rod (10) passes through the fixing plate (9), the surface of the second external thread rod (10) is fitted with the first nut (11), and one end of the first nut (11) is attached to the top of the fixing plate (9).
4. The subway rigid contact wire suspension device according to claim 1, characterized in that: The first external thread rod (6) is welded to the other end of the first baffle (8), the mounting plate (24) is symmetrically distributed, and the extrusion turntable (7) is located between the first baffle (8) and the frame (3).
5. The subway rigid contact wire suspension device according to claim 2, characterized in that: The third external thread rod (16) is welded to the other end of the second baffle (18). The third external thread rod (16) is symmetrically distributed. The second nut (17) is located between the second baffle (18) and the second clamping plate (15).
6. The subway rigid contact wire suspension device according to claim 1, characterized in that: The bottom of the base plate (1) has a second groove (22) and a second anti-slip pad (23) is bonded inside the second groove (22).