Rail transit isolating switch pre-buried fixing device

Abstract

The utility model discloses a rail transit isolator pre -buried type fixing device, including pre -buried base plate subassembly and installation connection subassembly, pre -buried base plate subassembly is used for pre -buried to the concrete, and installation connection subassembly is used to install the isolator, and pre -buried base plate subassembly is provided with anti -vibration subassembly with installation connection subassembly, pre -buried base plate subassembly includes base plate, and the middle part of base plate is protruding upwards, and the section is isosceles trapezoid, and the bottom four corners of pre -buried base plate subassembly all are fixedly connected with fixed rod, and the surface of fixed rod is fixedly connected with four through -holes along the equidistance of circumference, and the utility model relates to rail transit engineering technical field. When this rail transit isolator pre -buried type fixing device is in the concrete pouring, through the structure of U -shaped board makes the pre -buried base plate subassembly after the solidification of concrete can be more stable, and the concrete is from the through -hole and passes, and the position of U -shaped board after solidification is more limited, and further promotes the stability.

Description

Technical Field

[0001] This utility model relates to the field of rail transit engineering technology, specifically to a pre-embedded fixing device for rail transit disconnect switches. Background Technology

[0002] Rail transit is a mode of transportation that uses rail trains for passenger transport. Rail transit includes subways, light rail, elevated rail trains, trams, and maglev trains. From the perspective of energy use, most rail transit vehicles are electrically driven, which is low-carbon and environmentally friendly. Currently, the power supply method for rail transit is to supply power to the rail transit contact network from each traction substation through disconnecting switches.

[0003] The patent publication number “CN214279864U” discloses a pre-embedded fixing device for a rail transit disconnect switch, including a pre-embedded box, a mounting plate and a buffer component; the mounting plate has multiple circular channels, and the inner wall of the circular channels is welded with auxiliary threaded pipes for connecting the disconnect switch; the pre-embedded box is set in a concrete pre-embedded pit, and the mounting plate is set on the top opening of the pre-embedded box.

[0004] As shown in the above technology, the existing pre-embedded fixing structure for rail transit disconnect switches involves pre-embedding anchor rods during concrete pouring and then fixing the disconnect switch using a corresponding structure. However, the existing anchor rods are mostly straight rods or hook-shaped rods, which have low stability. Furthermore, in rail transit, disconnect switches are installed near the track, and vibrations may occur when a subway passes by. Long-term vibrations can affect the stability of the disconnect switch after installation. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a pre-embedded fixing device for rail transit disconnect switches, which solves the problem of insufficient stability of existing pre-embedded fixing devices for rail transit disconnect switches.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a pre-embedded fixing device for rail transit disconnect switches includes a pre-embedded base plate assembly and an installation connection assembly; The embedded base plate assembly is used to embed into concrete, the mounting connection assembly is used to install the disconnect switch, and an anti-vibration component is provided between the embedded base plate assembly and the mounting connection assembly. The embedded base plate assembly includes a base plate, the middle part of which protrudes upward and has an isosceles trapezoidal cross section. A fixing rod is fixedly connected to each of the four corners of the bottom of the embedded base plate assembly. Four through holes are fixedly connected at equal intervals along the circumference on the surface of the fixing rod. Multiple through holes are evenly opened inside the through holes to allow concrete to pass through them.

[0007] Preferably, four positioning plates are fixedly connected to the top of the pre-embedded substrate assembly, and each of the four positioning plates has a U-shaped groove inside. The positioning plates are used to connect the pre-embedded substrate assembly and the vibration-damping assembly. Fixing bolts are fixedly connected to the four corners of the top of the pre-embedded substrate assembly, and the mounting connection assembly is fixed to the pre-embedded substrate assembly by fixing nuts.

[0008] Preferably, the mounting connection assembly includes a mounting plate, the bottom middle part of which is provided with a groove adapted to the shape of the substrate, the mounting plate has a positioning T-slot inside, and a press-fit bolt is slidably provided on the upper surface of the mounting plate to cooperate with the through hole on the surface of the disconnect switch base. There are two press-fit bolts and they slide along the length direction of the pre-embedded substrate assembly. A press-fit nut is threadedly installed on the outside of the press-fit bolt.

[0009] Preferably, the mounting plate has a recessed groove on its surface and a positioning T-slot inside the mounting plate. The recessed groove is connected to the positioning T-slot, and the press-fit bolt is located inside the positioning T-slot. Connecting seats are fixedly connected to both the left and right sides of the mounting plate, and the connecting seats have guide grooves inside for the bolts to pass through.

[0010] Preferably, the vibration-damping component includes a rod groove and a recess on the bottom of the mounting plate, and the rod groove and the recess are connected. A mounting rod is provided inside the rod groove, and the mounting rod is fixed inside the rod groove and the recess by two mounting nuts.

[0011] Preferably, the surface of the mounting rod is provided with a symmetrical vibration damping structure. The vibration damping structure includes two front and rear limiting grooves formed on the surface of the mounting rod. The inner surface of the limiting groove is slidably connected with a clamping plate and multiple sets of vibration damping components. The surface of the mounting rod is threaded with an adjusting nut, which is used to lock and position the vibration damping components. The vibration damping components are composed of two front and rear opposite arc-shaped plates, and the arc-shaped plates are made of manganese copper alloy.

[0012] Beneficial effects This utility model provides a pre-embedded fixing device for rail transit disconnect switches. Compared with the prior art, it has the following advantages: 1. This rail transit disconnect switch pre-embedded fixing device uses a pre-embedded base plate assembly for pre-embedding into concrete, and an installation connection assembly for installing the disconnect switch. An anti-vibration component is provided between the pre-embedded base plate assembly and the installation connection assembly. The pre-embedded base plate assembly includes a base plate. During concrete pouring, the U-shaped plate structure makes the pre-embedded base plate assembly more stable after the concrete solidifies. Furthermore, the concrete passes through the through hole, and the position of the U-shaped plate is more restricted after solidification, further improving stability.

[0013] 2. The pre-embedded fixing device for the rail transit disconnect switch includes a vibration-resistant component comprising a rod groove and a recessed groove at the bottom of the mounting plate, with the rod groove and the recessed groove being connected. An installation rod is installed inside the rod groove, and the installation rod is fixed inside the rod groove and the recessed groove by two front and rear installation nuts. By setting the vibration-resistant component between the pre-embedded base plate assembly and the mounting connection assembly, the vibration generated when the disconnect switch vibrates is reduced, ensuring the stability of the disconnect switch and facilitating its long-term use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the appearance of the present utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the vibration-damping component of this utility model; Figure 4 This is a schematic diagram of the vibration-damping component of this utility model; Figure 5 This is a schematic diagram of the vibration reduction structure of this utility model.

[0015] In the diagram: 1. Embedded substrate assembly; 11. Substrate; 12. Fixing rod; 13. U-shaped plate; 14. Through hole; 15. Positioning plate; 16. U-shaped groove; 17. Fixing bolt; 2. Installation connection assembly; 21. Mounting plate; 22. Positioning T-slot; 23. Press-fit bolt; 24. Press-fit nut; 25. Connecting seat; 26. Guide groove; 3. Vibration damping assembly; 31. Rod groove; 32. Groove; 33. Mounting rod; 34. Mounting nut; 35. Limiting slide; 36. Clamping plate; 37. Vibration damping component; 38. Adjusting nut. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-5 Two technical solutions are provided for the pre-embedded fixing device of rail transit disconnect switch: The first embodiment includes a pre-embedded substrate assembly 1 and a mounting connection assembly 2; The embedded base plate assembly 1 is used to embed into concrete, and the installation connection assembly 2 is used to install the disconnect switch. An anti-vibration assembly 3 is provided between the embedded base plate assembly 1 and the installation connection assembly 2. The embedded base plate assembly 1 includes a base plate 11, the middle part of which protrudes upward and has an isosceles trapezoidal cross section. A fixing rod 12 is fixedly connected to each of the four bottom corners of the embedded base plate assembly 1. Four through holes 14 are fixedly connected at equal intervals along the circumference on the surface of the fixing rod 12. Multiple through holes 14 are evenly opened inside the through holes 14 to allow concrete to pass through. Four positioning plates 15 are fixedly connected to the top of the embedded base plate assembly 1, and each of the four positioning plates 15 has a U-shaped groove 16 inside. The positioning plates 15 are used to connect the embedded base plate assembly 1 and the anti-vibration assembly 3. Fixing bolts 17 are fixedly connected to each of the four top corners of the embedded base plate assembly 1, and the installation connection assembly 2 is fixed to the embedded base plate assembly 1 by fixing nuts 18.

[0018] The mounting connection assembly 2 includes a mounting plate 21. The bottom middle part of the mounting plate 21 is provided with a groove that matches the shape of the base plate 11. The mounting plate 21 has a positioning T-slot 22 inside. The upper surface of the mounting plate 21 is slidably provided with a press-fit bolt 23 that mates with the through hole on the surface of the disconnect switch base. There are two press-fit bolts 23, which slide along the length of the pre-embedded base plate assembly 1. A press-fit nut 24 is threadedly installed on the outside of the press-fit bolt 23. The surface of the mounting plate 21 is provided with a recess, and the mounting plate 21 has a positioning T-slot 22 inside. The recess and the positioning T-slot 22 are connected. The press-fit bolt 23 is located inside the positioning T-slot 22. The left and right sides of the mounting plate 21 are fixedly connected with connecting seats 25, and the connecting seats 25 have guide grooves 26 inside for fixing bolts 17 to pass through.

[0019] During concrete pouring, the structure of the U-shaped plate 13 makes the embedded base plate assembly 1 more stable after the concrete solidifies. Furthermore, the concrete passes through the through hole 14, and the position of the U-shaped plate 13 is more restricted after solidification, further improving stability.

[0020] The second embodiment differs from the first embodiment in that: the vibration damping component 3 includes a rod groove 31 and a recess 32 at the bottom of the mounting plate 21, and the rod groove 31 and the recess 32 are connected. A mounting rod 33 is provided inside the rod groove 31, and the mounting rod 33 is fixed inside the rod groove 31 and the recess 32 by two mounting nuts 34. The surface of the mounting rod 33 is provided with a symmetrical vibration damping structure. The vibration damping structure includes two limiting slide grooves 35 on the surface of the mounting rod 33. A clamping plate 36 and multiple sets of vibration damping components 37 are slidably connected to the inner surface of the limiting slide grooves 35. An adjusting nut 38 is threadedly connected to the surface of the mounting rod 33, and the adjusting nut 38 is used to lock and position the vibration damping component 37. The vibration damping component 37 is composed of two oppositely arranged arc-shaped plates, and the arc-shaped plates are made of manganese copper alloy.

[0021] By setting an anti-vibration component 3 between the pre-embedded substrate assembly 1 and the mounting connection assembly 2, the vibration generated when the disconnecting switch vibrates is reduced, ensuring the stability of the disconnecting switch and facilitating its long-term use.

[0022] During concrete pouring, the pre-embedded base plate assembly 1 is pre-embedded, with the base plate 11 positioned above the solidified concrete. During the concrete pouring process, the concrete passes through the through hole 14 and forms multiple cylinders after solidification, thereby restricting the position of the through hole 14 and improving its stability. When installing the disconnect switch, it is connected to the disconnect switch through the structure of the press-fit bolt 23 and press-fit nut 24. The guide groove 26 on the connecting seat 25 is aligned with the fixing bolt 17, and the fixing bolt 17 is inserted into the connecting seat 25. Finally, it is fixed by the fixing nut 18. During insertion, the positioning plate 15 is positioned between the two limit slide grooves 35, and the mounting rod 33 enters the U-shaped groove 16. When the subway passes by and vibration occurs, the positioning plate 15 contacts the limit slide groove 35 and pushes multiple vibration damping components 37 to move. The vibration damping components 37 deform, thereby absorbing the force generated by the vibration and reducing the vibration of the disconnect switch, which is beneficial for long-term use.

[0023] 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 process, method, article, or apparatus.

[0024] 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 pre-embedded fixing device for a rail transit disconnect switch, characterized in that: Includes a pre-embedded substrate assembly (1) and a mounting connection assembly (2); The embedded base plate assembly (1) is used to be embedded in concrete, the installation connection assembly (2) is used to install the disconnect switch, and an anti-vibration assembly (3) is provided between the embedded base plate assembly (1) and the installation connection assembly (2). The embedded base plate assembly (1) includes a base plate (11), the middle part of the base plate (11) protrudes upward and the cross section is an isosceles trapezoid. The four corners of the bottom of the embedded base plate assembly (1) are fixedly connected with fixing rods (12). The surface of the fixing rods (12) is fixedly connected with four through holes (14) at equal intervals along the circumference. The inside of the through holes (14) is uniformly provided with multiple through holes (14) to allow concrete to pass through.

2. The embedded fixing device for a rail transit disconnect switch according to claim 1, characterized in that: The top of the pre-embedded substrate assembly (1) is fixedly connected with four positioning plates (15), and each of the four positioning plates (15) has a U-shaped groove (16) inside. The positioning plates (15) are used to connect the pre-embedded substrate assembly (1) with the vibration-damping assembly (3). The four corners of the top of the pre-embedded substrate assembly (1) are fixedly connected with fixing bolts (17), and the mounting connection assembly (2) is fixed to the pre-embedded substrate assembly (1) by fixing nuts (18).

3. The embedded fixing device for a rail transit disconnect switch according to claim 1, characterized in that: The mounting connection assembly (2) includes a mounting plate (21). The bottom middle part of the mounting plate (21) is provided with a groove that matches the shape of the substrate (11). The mounting plate (21) has a positioning T-slot (22) inside. The upper surface of the mounting plate (21) is slidably provided with a press-fit bolt (23) that matches the through hole on the surface of the disconnect switch base. There are two press-fit bolts (23) and they slide along the length direction of the pre-embedded substrate assembly (1). A press-fit nut (24) is threadedly installed on the outside of the press-fit bolt (23).

4. The embedded fixing device for a rail transit disconnect switch according to claim 3, characterized in that: The mounting plate (21) has a recessed groove on its surface and a positioning T-slot (22) inside the mounting plate (21). The recessed groove is connected to the positioning T-slot (22). The press-fit bolt (23) is located inside the positioning T-slot (22). Connecting seats (25) are fixedly connected to both the left and right sides of the mounting plate (21). The connecting seats (25) have guide grooves (26) inside for fixing bolts (17) to pass through.

5. The embedded fixing device for a rail transit disconnect switch according to claim 1, characterized in that: The vibration-damping component (3) includes a rod groove (31) and a recess (32) at the bottom of the mounting plate (21), and the rod groove (31) and the recess (32) are connected. An installation rod (33) is provided inside the rod groove (31), and the installation rod (33) is fixed inside the rod groove (31) and the recess (32) by two front and rear installation nuts (34).

6. The embedded fixing device for a rail transit disconnect switch according to claim 5, characterized in that: The surface of the mounting rod (33) is provided with a symmetrical vibration damping structure. The vibration damping structure includes two front and rear limiting slide grooves (35) opened on the surface of the mounting rod (33). The inner surface of the limiting slide groove (35) is slidably connected with a clamping plate (36) and multiple sets of vibration damping components (37). The surface of the mounting rod (33) is threadedly connected with an adjusting nut (38). The adjusting nut (38) is used to lock and position the vibration damping component (37). The vibration damping component (37) is composed of two front and rear opposite arc-shaped plates, and the arc-shaped plates are made of manganese copper alloy.

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