Subway heavy rail fastener

Abstract

The utility model discloses a metro heavy rail fastener, which relates to the technical field of metro heavy rails and comprises an embedded part, a supporting rod is fixedly mounted on the side wall of the embedded part, a bidirectional motor is fixedly mounted at one end, far away from the embedded part, of the supporting rod, and a progressive locking mechanism is fixedly mounted at the driving end of the bidirectional motor. The progressive locking mechanism comprises a rotating disc fixedly installed at the driving end of the bidirectional motor, and the side end of the surface, away from the bidirectional motor, of the rotating disc is rotationally connected with a reciprocating plate. According to the utility model, through the combination of the bidirectional motor and the progressive locking mechanism, the accurate adjustment of the height of the subway heavy rail fastener is realized, and compared with a base plate stacking method which is widely adopted in the existing design, the problem of plastic deformation of the base plate caused by bearing the action of a heavy-load train for a long time can be avoided; therefore, the stability of the geometric dimension of the track is kept, and stable operation of a train and riding comfort of passengers are ensured.

Description

Technical Field

[0001] This utility model relates to the field of heavy rail technology for subways, specifically to subway heavy rail fasteners. Background Technology

[0002] In the rapidly developing urban rail transit system, subway heavy rail fasteners play a crucial role. They are not only key components connecting the rails to the track foundation, but also the cornerstone for ensuring the stability and safety of the entire rail transit system. The design of subway heavy rail fasteners must meet the complex and ever-changing line conditions and operational requirements in order to maintain the overall performance of the track structure and the smoothness of train operation.

[0003] The existing design of subway heavy rail fasteners widely adopts the method of stacking pads to adjust the height of the heavy rail. This method adapts to changes in slope, curve radius and foundation settlement of different line sections by increasing or decreasing the number or thickness of pads, thereby ensuring that the geometry of the track meets the operational requirements. The design of stacking pads improves the flexibility and adaptability of the fastener system to a certain extent.

[0004] However, due to the plastic deformation of the pad material under the long-term load of heavy trains, the height of the pad gradually decreases. This deformation not only damages the geometry of the track, causing unevenness on the rail surface, which seriously affects the smooth operation of the train and the comfort of passengers, but more seriously, the reduction in the height of the pad may also cause additional stress and deformation to the fastening system itself, accelerating the aging and damage process of the fastening system and reducing its service life and reliability.

[0005] In view of the above, this application is hereby submitted. Utility Model Content

[0006] The purpose of this utility model is to provide a subway heavy rail fastener to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the present invention provides a subway heavy rail fastener, including an embedded part, a support rod fixedly installed on the side wall of the embedded part, a bidirectional motor fixedly installed at the end of the support rod away from the embedded part, and a progressive locking mechanism fixedly installed at the drive end of the bidirectional motor.

[0008] The progressive locking mechanism includes a turntable fixedly installed at the drive end of a bidirectional motor. A reciprocating plate is rotatably connected to the side of the turntable away from the bidirectional motor. An upper locking pin is fixedly installed on the top of the side wall of the reciprocating plate, which is on the same plane as the connecting column two. A lower locking pin is fixedly installed on the bottom of the side wall of the reciprocating plate near the upper locking pin. The lower locking pin and the upper locking pin are engaged with the inner wall of a slot opened on the surface of the turntable. A gear is rotatably installed on the side wall of the turntable away from the slot. A ratchet is fixedly installed on the side wall of the turntable. The ratchet is engaged with the inner wall of the gear. A rack one and a rack two are engaged with the outer wall of the gear. A base plate is fixedly installed at the bottom of rack one, and a limit box is fixedly installed at the top of rack two.

[0009] Furthermore, a connecting column one is fixedly installed at the end of the turntable side wall, a connecting rod is rotatably installed on the outer wall of the connecting column one, a connecting column two is rotatably installed at the end of the connecting rod away from the connecting column one, and a reciprocating plate is fixedly installed on the side wall of the connecting column two.

[0010] Furthermore, a transverse sliding groove is provided on the inner wall of the limiting box, and a clamping mechanism is slidably installed on the inner wall of the transverse sliding groove;

[0011] The clamping mechanism includes two transverse slide bars slidably mounted on the inner wall of a transverse slide groove. Each of the two transverse slide bars has a movable block fixedly mounted on its side wall. A clamping plate is fixedly mounted on the top of each movable block. A vertical slide groove is formed on the side wall of the movable block. A vertical slide column is slidably mounted on the inner wall of the vertical slide groove. A stop post is fixedly mounted on the side wall of the vertical slide column. An insulating gasket is fixedly mounted on the top of the stop post. A clamping plate is fixedly mounted on the top of the other movable block.

[0012] Furthermore, a fixing block is fixedly installed on the inner wall of the gear, a rotating shaft is fixedly installed on the top of the fixing block, a pawl is rotatably installed on the end of the rotating shaft away from the gear, a tension spring is fixedly connected to the bottom of the pawl, and the end of the tension spring away from the pawl is fixedly connected to the side wall of the fixing block.

[0013] Furthermore, the inner wall shapes of the first and second clamps are fitted to the outer wall shape of the subway heavy rail, and the surfaces of the first and second clamps are both provided with integrally formed anti-slip textures.

[0014] Furthermore, the insulating pad is made of rubber, and the bottom of the rubber pad has Velcro.

[0015] Compared with the prior art, the beneficial effects of this utility model are: by combining a bidirectional motor and a progressive locking mechanism, the height of the subway heavy rail fasteners can be precisely adjusted. Compared with the pad stacking method widely used in existing designs, this utility model can avoid the problem of plastic deformation of the pad due to long-term heavy train load, thereby maintaining the stability of the track geometry and ensuring the smooth operation of the train and the comfort of passengers. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the cross-sectional structure of a subway heavy rail fastener;

[0017] Figure 2 A schematic diagram of the progressive locking mechanism for subway heavy rail fasteners;

[0018] Figure 3 A schematic diagram of the explosion structure of the progressive locking mechanism for subway heavy rail fasteners;

[0019] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0020] Figure 5 A schematic diagram of the reciprocating plate structure of a subway heavy rail fastener;

[0021] Figure 6 A schematic diagram of the back structure of the rotating wheel of a subway heavy rail fastener;

[0022] Figure 7 This is a schematic diagram of the exploded structure of the clamping structure of the subway heavy rail fastener.

[0023] In the diagram: 1. Embedded part; 2. Base plate; 3. Rack 1; 4. Rack 2; 5. Turntable; 6. Rotary wheel; 7. Reciprocating plate; 8. Limit box; 9. Clamping plate 1; 10. Support column; 11. Insulating gasket; 12. Clamping plate 2; 13. Moving block; 14. Horizontal slide bar; 15. Vertical slide groove; 16. Vertical slide column; 17. Horizontal slide groove; 18. Slot; 19. Gear; 20. Bidirectional motor; 21. Connecting rod; 22. Connecting column 1; 23. Support rod; 24. Connecting column 2; 25. Upper locking pin; 26. Lower locking pin; 27. Ratchet; 28. Fixing block; 29. ​​Rotating shaft; 30. Tension spring; 31. Pawl. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1 - Figure 7 This utility model provides a technical solution: a subway heavy rail fastener, including an embedded part 1, a support rod 23 fixedly installed on the side wall of the embedded part 1, a bidirectional motor 20 fixedly installed at the end of the support rod 23 away from the embedded part 1, and a progressive locking mechanism fixedly installed at the drive end of the bidirectional motor 20.

[0026] The progressive locking mechanism includes a turntable 5 fixedly installed at the drive end of the bidirectional motor 20. A reciprocating plate 7 is rotatably connected to the side end of the turntable 5 away from the bidirectional motor 20. An upper locking pin 25 is fixedly installed on the top of the side wall of the reciprocating plate 7, which is on the same plane as the connecting column 24. A lower locking pin 26 is fixedly installed on the bottom end of the side wall of the reciprocating plate 7 near the upper locking pin 25. The lower locking pin 26 and the upper locking pin 25 are engaged in the inner wall of the slot 18 opened on the surface of the turntable 6. A gear 19 is rotatably installed on the side wall of the turntable 6 away from the slot 18. A ratchet 27 is fixedly installed on the side wall of the turntable 6. The ratchet 27 is engaged in the inner wall of the gear 19. A rack 3 and a rack 4 are engaged in the outer wall of the gear 19. A base plate 2 is fixedly installed at the bottom of the rack 3. A limit box 8 is fixedly installed at the top of the rack 4.

[0027] It should be noted that: the combination of the pre-embedded part 1 and the bidirectional motor 20 achieves stable driving of the progressive locking mechanism. The bidirectional motor 20 can rotate in both directions, thereby driving the turntable 5 to rotate, which in turn drives the reciprocating plate 7 to reciprocate, making the height adjustment of the fastener more flexible and precise.

[0028] Furthermore, the upper locking pin 25 and the lower locking pin 26 engage with the groove 18 on the surface of the rotating wheel 6. As the reciprocating plate 7 moves, the locking pins slide within the groove 18, thereby driving the rotating wheel 6 to rotate. This progressive locking method ensures the stability and safety of the fastener during the adjustment process.

[0029] Please see Figure 5 This utility model provides a technical solution: a subway heavy rail fastener, including a connecting column 22 fixedly installed on the side wall end of a turntable 5, a connecting rod 21 rotatably installed on the outer wall of the connecting column 22, a connecting column 24 rotatably installed on the end of the connecting rod 21 away from the connecting column 22, and a reciprocating plate 7 fixedly installed on the side wall of the connecting column 24.

[0030] Please see Figure 7 This utility model provides a technical solution: a subway heavy rail fastener, including a limit box 8 with a transverse sliding groove 17 on the inner wall, and a clamping mechanism slidably installed on the inner wall of the transverse sliding groove 17.

[0031] The clamping mechanism includes two transverse slide bars 14 slidably mounted on the inner wall of the transverse slide groove 17. Each transverse slide bar 14 has a movable block 13 fixedly mounted on its side wall. A clamping plate 9 is fixedly mounted on the top of the movable block 13. A vertical slide groove 15 is opened on the side wall of the movable block 13. A vertical slide column 16 is slidably mounted on the inner wall of the vertical slide groove 15. A stop column 10 is fixedly mounted on the side wall of the vertical slide column 16. An insulating gasket 11 is fixedly mounted on the top of the stop column 10. A clamping plate 12 is fixedly mounted on the top of the other movable block 13.

[0032] It should be noted that the weight of the heavy rail will press the abutment 10 downward, causing the moving block 13 to move, so that the clamping plate 9 and the clamping plate 12 can fit tightly against both sides of the heavy rail, thereby ensuring the stability and reliability of the clamping.

[0033] Please see Figure 3 - Figure 4 This utility model provides a technical solution: a subway heavy rail fastener, including a fixing block 28 fixedly installed on the inner wall of a gear 19, a rotating shaft 29 fixedly installed on the top of the fixing block 28, a pawl 31 rotatably installed on the end of the rotating shaft 29 away from the gear 19, a tension spring 30 fixedly connected to the bottom of the pawl 31, and the end of the tension spring 30 away from the pawl 31 fixedly connected to the side wall of the fixing block 28.

[0034] It should be noted that: the pawl 31 is fixed to the fixed block 28 by the rotating shaft 29, and the tension spring 30 is connected between the pawl 31 and the fixed block 28. When the rotating wheel 6 rotates, the pawl 31 drives the gear 19 to rotate. However, due to the elastic force of the tension spring 30, the pawl 31 can only lock the gear 19 in one direction to prevent it from rotating in the opposite direction.

[0035] Furthermore, there are two pawls 31, which can engage with the two rotating wheels 6 respectively, allowing the entire device to rotate in both directions, thereby enabling precise height adjustment of the device.

[0036] Please see Figure 7 This utility model provides a technical solution: a subway heavy rail fastener, including a clamp plate 9 and a clamp plate 12 whose inner wall shape fits the outer wall shape of the subway heavy rail, and the surfaces of the clamp plate 9 and the clamp plate 12 are both provided with integrally formed anti-slip textures.

[0037] It should be noted that the inner wall shape of clamping plate 9 and clamping plate 12 fits the outer wall shape of the subway heavy rail, ensuring the stability of the clamping, and the anti-slip texture increases the friction to prevent the heavy rail from slipping off.

[0038] Please see Figure 7 This utility model provides a technical solution: a subway heavy rail fastener, including an insulating gasket 11 made of rubber, with Velcro attached to the bottom of the rubber.

[0039] It should be noted that the rubber material has good elasticity and insulation properties. The elasticity of the rubber can ensure that the insulating gasket 11 can undergo appropriate deformation when under pressure, thereby absorbing part of the impact force and protecting the heavy rail and fastener from damage.

[0040] Furthermore, the insulation properties can effectively isolate current, preventing it from being transmitted to the track through the fasteners and ensuring the safe operation of the subway system.

[0041] Furthermore, the Velcro closure facilitates the installation and removal of the insulating gasket 11. When the insulating gasket 11 needs to be replaced or maintained, workers can easily remove it from the support post 10 using the Velcro closure without the need for additional tools or equipment. This not only improves work efficiency but also reduces maintenance costs.

[0042] Working principle: When the bidirectional motor 20 starts, it drives the turntable 5 to rotate. The turntable 5 transmits its motion to the reciprocating plate 7 via the connecting rod 21, causing the reciprocating plate 7 to reciprocate with the rotation of the turntable 5. At the upper and lower ends of the reciprocating plate 7, upper locking pins 25 and lower locking pins 26 are fixed respectively, engaging with the slots 18 on the surface of the rotating wheel 6. As the reciprocating plate 7 moves, the locking pins slide within the slots 18, thereby driving the rotating wheel 6 to rotate. The ratchet 27 on the side wall of the rotating wheel 6 engages with the pawl 31 on the inner wall of the gear 19, thus causing the rotating wheel 6 to rotate. The rotating drive gear 19 rotates, which drives rack 3 and rack 4 to move up and down. The bottom of rack 3 is fixed with base plate 2, and the top of rack 4 is fixed with limit box 8. Therefore, the relative position of base plate 2 and limit box 8 will change, thereby realizing the adjustment of the track height. When the heavy rail is placed inside the clamping mechanism, it first contacts the abutment 10. The abutment 10 moves downward due to the weight, thereby driving the moving block 13 and clamping plates 9 and 12 to move towards the abutment 10 inside the limit box 8 until they are firmly clamped on the outer wall of the heavy rail.

Claims

1. A subway heavy rail fastener, including embedded parts (1), characterized in that: A support rod (23) is fixedly installed on the side wall of the embedded part (1). A bidirectional motor (20) is fixedly installed at the end of the support rod (23) away from the embedded part (1). A progressive locking mechanism is fixedly installed at the drive end of the bidirectional motor (20). The progressive locking mechanism includes a turntable (5) fixedly mounted on the drive end of a bidirectional motor (20). A reciprocating plate (7) is rotatably connected to the side of the turntable (5) away from the bidirectional motor (20). An upper locking pin (25) is fixedly mounted on the top of the side wall of the reciprocating plate (7) and the connecting column (24) on the same plane. A lower locking pin (26) is fixedly mounted on the bottom of the side wall of the reciprocating plate (7) near the upper locking pin (25). The lower locking pin (26) engages with the upper locking pin (25) on the turntable. On the inner wall of the slot (18) opened on the surface of the wheel (6), a gear (19) is rotatably installed on the side wall of the wheel (6) away from the slot (18). A ratchet (27) is fixedly installed on the side wall of the wheel (6). The ratchet (27) meshes with the inner wall of the gear (19). A rack one (3) and a rack two (4) mesh with the outer wall of the gear (19). A base plate (2) is fixedly installed at the bottom of the rack one (3). A limit box (8) is fixedly installed at the top of the rack two (4).

2. The subway heavy rail fastener as described in claim 1, characterized in that: A connecting column one (22) is fixedly installed on the end of the side wall of the turntable (5). A connecting rod (21) is rotatably installed on the outer wall of the connecting column one (22). A connecting column two (24) is rotatably installed on the end of the connecting rod (21) away from the connecting column one (22). A reciprocating plate (7) is fixedly installed on the side wall of the connecting column two (24).

3. The subway heavy rail fastener as described in claim 1, characterized in that: The inner wall of the limiting box (8) is provided with a transverse sliding groove (17), and a clamping mechanism is slidably installed on the inner wall of the transverse sliding groove (17); The clamping mechanism includes two transverse slide bars (14) slidably mounted on the inner wall of the transverse slide groove (17). Each of the two transverse slide bars (14) has a movable block (13) fixedly mounted on its side wall. A clamping plate (9) is fixedly mounted on the top of the movable block (13). A vertical slide groove (15) is opened on the side wall of the movable block (13). A vertical slide column (16) is slidably mounted on the inner wall of the vertical slide groove (15). A stop column (10) is fixedly mounted on the side wall of the vertical slide column (16). An insulating gasket (11) is fixedly mounted on the top of the stop column (10). A clamping plate (12) is fixedly mounted on the top of the other movable block (13).

4. The subway heavy rail fastener as described in claim 1, characterized in that: A fixing block (28) is fixedly installed on the inner wall of the gear (19). A rotating shaft (29) is fixedly installed on the top of the fixing block (28). A pawl (31) is rotatably installed on the end of the rotating shaft (29) away from the gear (19). A tension spring (30) is fixedly connected to the bottom of the pawl (31). The end of the tension spring (30) away from the pawl (31) is fixedly connected to the side wall of the fixing block (28).

5. The subway heavy rail fastener as described in claim 3, characterized in that: The inner wall shape of the first clamp (9) and the second clamp (12) are in close contact with the outer wall shape of the subway heavy rail. The surfaces of the first clamp (9) and the second clamp (12) are provided with integrally formed anti-slip textures.

6. The subway heavy rail fastener as described in claim 3, characterized in that: The insulating pad (11) is made of rubber, and the bottom of the rubber pad has Velcro.

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