Railway track damping fastener

Abstract

The utility model relates to the technical field of railway tracks, in particular to a railway track vibration reduction fastener which comprises a track body and a height adjusting base plate and further comprises a fixing screw, an elastic strip, a threaded spike and a nut, the elastic strip is used for reducing vibration of the track body, and a protection assembly used for protecting the vibration reduction fastener is arranged on the surface of the height adjusting base plate. A fixing assembly used for fixing the nut is arranged at the upper end of the nut. According to the protection assembly, the shock absorption fastener is prevented from being exposed in the external environment for a long time to cause corrosion by isolating the shock absorption fastener from being in contact with the outside, the protection assembly is very convenient to install, and compared with a fixed installation mode through bolts, the construction efficiency is higher, and the service life is prolonged. The fixing assembly can fix the nut in the installation process of the protection assembly, the nut is prevented from loosening in the vibration process, after the fixing assembly is installed, the protection assembly completes fixed installation at the same time, and the installation efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the field of railway track technology, and in particular to a railway track vibration damping fastener. Background Technology

[0002] The main functions of railway track vibration damping fasteners include ensuring track stability and precision, absorbing impact energy, and reducing noise and vibration. Specifically, vibration damping fasteners reduce track vibration and noise by changing the structural design of the fasteners and using vibration damping materials to bond the upper and lower iron pads together. This vibration damping measure can not only effectively filter track vibration, but also reduce project investment costs to a certain extent.

[0003] During long-term use, vibration damping fasteners are constantly exposed to the external environment. Even if these fasteners are made of corrosion-resistant materials, it is still difficult to prevent surface corrosion. Corrosion can not only cause the components that fix the vibration damping fasteners to loosen, but also cause the track to deviate under the constant vibration of the train, leading to safety hazards. Furthermore, it will make disassembly extremely inconvenient. Utility Model Content

[0004] To overcome the problem that the surface of the shock-absorbing fastener is easily corroded due to long-term exposure to the external environment, which leads to loosening of the fastener during installation and makes subsequent disassembly extremely inconvenient.

[0005] The technical solution of this utility model is as follows: a railway track vibration damping fastener, including a track body and a height adjustment pad, and further including fixing screws, spring clips, threaded spikes and nuts. The height adjustment pad is provided below the track body. The surface of the height adjustment pad is threaded with fixing screws. The upper surface of the height adjustment pad is provided with spring clips. The upper end of the height adjustment pad is threaded with a threaded spike. The upper end of the threaded spike is threaded with a nut. The threaded spike is used to fix and tighten the spring clip. The spring clip is used to reduce the vibration of the track body. The height adjustment pad, fixing screws, spring clips, threaded spikes and nuts together constitute the vibration damping fastener. The surface of the height adjustment pad is provided with a protective component for protecting the vibration damping fastener. The upper end of the nut is provided with a fixing component for fixing the nut.

[0006] Preferably, the protective component includes an outer protective housing, which is disposed on the upper end of the height adjustment pad. The height adjustment pad has grooves on both sides, and the lower end of the outer protective housing is slidably disposed in the groove. Spring seats are fixedly installed on both sides of the outer protective housing, and slide rods are slidably connected inside the spring seats. A baffle is fixedly connected between the two slide rods. A spring is provided inside the spring seat, and the spring is located at the lower end of the slide rod. The spring is used to push the slide rod upward.

[0007] Preferably, a lower sealing gasket is fixedly connected to the lower end of the baffle, a side sealing gasket is provided on one side of the baffle, and a groove adapted to the side sealing gasket is provided on one side of the outer protective shell, with the lower end of the lower sealing gasket contacting the upper surface of the track body.

[0008] Preferably, the upper end of the slide bar is provided with a locking block, and the upper end of the spring seat is rotatably connected with a buckle. The upper end of the buckle is provided with a notch that matches the locking block, and the buckle is provided with a cavity for the locking block to rotate.

[0009] Preferably, the fixing component includes a retaining sleeve, which is disposed at the upper end of the outer protective housing. A fixing seat is fixedly installed at the upper end of the outer protective housing. A retaining ring is fixedly connected inside the fixing seat. A push rod is fixedly connected at the upper end of the retaining sleeve. The push rod is slidably connected to the retaining ring. A second spring is provided at the upper end of the push rod. The second spring is used to fasten the fit between the retaining sleeve and the nut.

[0010] Preferably, the upper end of the outer protective housing is provided with an opening that fits the ferrule, and the outer protective housing and the ferrule are slidably connected.

[0011] Preferably, a side roller is provided on one side of the lower end of the ferrule, and the side roller contacts one side of the nut. The side roller is used to push the ferrule upward.

[0012] The beneficial effects of this utility model are as follows: The protective component of this railway track vibration damping fastener isolates the vibration damping fastener from contact with the outside world, thereby preventing the vibration damping fastener from being exposed to the external environment for a long time and causing corrosion. Moreover, the installation of this protective component is very convenient. Compared with the method of fixing with bolts, the construction efficiency is higher. The fixing component can fix the nut during the installation of the protective component, preventing the nut from loosening during vibration. Furthermore, after the fixing component is installed, the protective component is fixed at the same time, further improving the installation efficiency. Attached Figure Description

[0013] Figure 1 The diagram shown is a three-dimensional structural schematic of the main track of this utility model.

[0014] Figure 2 The diagram shown is a side view of the present invention.

[0015] Figure 3 The diagram shown is a three-dimensional structural schematic of the fixing base of this utility model;

[0016] Figure 4 The diagram shown is a three-dimensional structural schematic of the card sleeve of this utility model;

[0017] Figure 5 The diagram shown is a three-dimensional structural schematic of the side roller of this utility model;

[0018] Figure 6 The diagram shown is a three-dimensional structural diagram of the buckle of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Track body; 2. Height adjustment plate; 3. Fixing screw; 4. Spring bar; 5. Threaded rail spike; 6. Nut; 7. Slide groove; 8. Outer protective housing; 9. Spring seat; 10. Buckle; 11. Slide rod; 12. Locking block; 13. Baffle; 14. Lower sealing gasket; 15. Side sealing gasket; 16. Spring one; 17. Sleeve; 18. Snap ring; 19. Push rod; 20. Spring two; 21. Side roller; 22. Fixing seat. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figure 1 - Figure 6 This utility model provides an embodiment: a railway track vibration damping fastener, including a track body 1 and a height adjustment pad 2, and further including fixing screws 3, spring clips 4, threaded rail spikes 5, and nuts 6. The height adjustment pad 2 is located below the track body 1, and the surface of the height adjustment pad 2 is threadedly connected to the fixing screws 3. The upper surface of the height adjustment pad 2 is provided with spring clips 4, and the upper end of the height adjustment pad 2 is threadedly connected to the threaded rail spikes 5. The upper end of the threaded rail spikes 5 is threadedly connected to the nuts 6. The threaded rail spikes 5 are used to fix and tighten the spring clips 4, which are used to reduce the vibration of the track body 1. The height adjustment pad 2, fixing screws 3, spring clips 4, and threaded rail spikes 5 are all included. The track spike 4, threaded spike 5, and nut 6 together constitute the vibration damping fastener. The surface of the height adjustment plate 2 is provided with a protective component for protecting the vibration damping fastener. The upper end of the nut 6 is provided with a fixing component for fixing the nut 6. The protective component of this railway track vibration damping fastener prevents the vibration damping fastener from being exposed to the external environment for a long time and thus prevents corrosion. The fixing component can fix the nut 6 during the installation of the protective component to prevent the nut 6 from loosening due to vibration. After the fixing component is installed, the protective component is fixed at the same time, which further improves the installation efficiency.

[0022] Please see Figure 3 , Figure 4 and Figure 6In this embodiment, the protective assembly includes an outer protective housing 8, which is disposed on the upper end of the height adjustment pad 2. The height adjustment pad 2 has sliding grooves 7 on both sides. The lower end of the outer protective housing 8 is slidably disposed in the sliding grooves 7. Spring seats 9 are fixedly installed on both sides of the outer protective housing 8. Sliding rods 11 are slidably connected within the spring seats 9. A baffle 13 is fixedly connected between the two sliding rods 11. A spring 16 is disposed within the spring seats 9, located at the lower end of the sliding rods 11. The spring 16 is used to push the sliding rods 11 upwards. A lower sealing gasket 14 is fixedly connected to the lower end of the baffle 13. A side sealing gasket 15 is provided on one side of the baffle 13. A side sealing gasket 15 is provided on one side of the outer protective housing 8. The groove, the lower end of the lower sealing gasket 14 contacts the upper surface of the track body 1, the upper end of the slide rod 11 is provided with a locking block 12, the upper end of the spring seat 9 is rotatably connected with a buckle 10, the upper end of the buckle 10 is provided with a notch adapted to the locking block 12, the buckle 10 is provided with a cavity for the locking block 12 to rotate, after the lower end of the outer protective shell 8 is inserted into the slide groove 7, the baffle 13 is pressed down, and then the buckle 10 is rotated, the notch on the surface of the buckle 10 is intersected with the locking block 12, thus fixing the position of the slide rod 11, and the baffle 13 is fixed at the same time. The baffle 13 seals the two sides of the outer protective shell 8, thereby isolating the shock-absorbing fastener from contact with the outside world, thereby preventing the shock-absorbing fastener from being exposed to the external environment for a long time.

[0023] Please see Figure 4 and Figure 5 In this embodiment, the fixing component includes a retaining sleeve 17, which is disposed on the upper end of the outer protective housing 8. A fixing base 22 is fixedly installed on the upper end of the outer protective housing 8. A retaining ring 18 is fixedly connected inside the fixing base 22. A push rod 19 is fixedly connected to the upper end of the retaining sleeve 17. The push rod 19 is slidably connected to the retaining ring 18. A second spring 20 is provided on the upper end of the push rod 19. The second spring 20 is used to fasten the fit between the retaining sleeve 17 and the nut 6. The upper end of the outer protective housing 8 has an opening that fits the retaining sleeve 17. The outer protective housing 8 and the retaining sleeve 17... The sliding connection has a side roller 21 on one side of the lower end of the sleeve 17. The side roller 21 contacts one side of the nut 6 and is used to push the sleeve 17 upward. During the process of inserting the outer protective housing 8 into the slide groove 7, the side roller 21 on one side of the sleeve 17 will touch the upper side of the nut 6. The nut 6 will push the side roller 21 upward. When the sleeve 17 and the nut 6 overlap, under the push of the second spring 20, the sleeve 17 and the nut 6 will fit together and lock in place, thereby fixing the nut 6 and preventing it from loosening during vibration.

[0024] In use, the height adjustment plate 2, fixing screw 3, elastic clip 4, threaded spike 5 and nut 6 constitute the shock-absorbing fastener. The shock-absorbing fastener generates fastening pressure on the track through the bending and twisting deformation of the elastic clip 4, which effectively ensures the reliable connection between the rails in the long term, prevents the rails from moving longitudinally and laterally relative to the sleepers, and ensures the normal track gauge. In addition, the special elastic structure of the elastic clip 4 enables it to absorb the impact energy generated when the vehicle passes by, thus achieving the effect of shock absorption.

[0025] During long-term use of the shock-absorbing fasteners, due to their prolonged exposure to the external environment, even the use of corrosion-resistant materials makes it difficult to prevent surface corrosion. After installing the shock-absorbing fasteners, the lower end of the outer protective housing 8 is inserted into the sliding grooves 7 on both sides of the height adjustment plate 2. After the outer protective housing 8 is inserted, the baffle 13 is pressed down, and the sliding rods 11 fixedly connected to both sides of the baffle 13 slide down simultaneously. When the locking block 12 on the surface of the sliding rod 11 passes through the matching notch on the surface of the buckle 10, the buckle 10 is rotated, and the notch on the surface of the buckle 10 intersects with the locking block 12, thus fixing the position of the sliding rod 11. The baffle 13 is also fixed at the same time, and the baffle 13 seals the two sides of the outer protective housing 8, thereby isolating the shock-absorbing fasteners from contact with the outside environment and preventing the shock-absorbing fasteners from being exposed to the external environment for a long time.

[0026] The lower sealing gasket 14 at the lower end of the baffle 13 and the side sealing gasket 15 on one side are used to further ensure the sealing performance and prevent rainwater and other substances from entering the outer protective housing 8 in large quantities.

[0027] During the process of inserting the outer protective housing 8 into the slide groove 7, the side roller 21 provided on one side of the sleeve 17 will touch the upper side of the nut 6. The nut 6 will lift the side roller 21. The side roller 21 is installed on one side of the sleeve 17, and the sleeve 17 is lifted at the same time. When the sleeve 17 and the nut 6 overlap, under the push of the second spring 20, the sleeve 17 and the nut 6 will fit together and lock in place, thereby fixing the nut 6 and preventing the nut 6 from loosening during vibration.

[0028] The push rod 19 is slidably connected to the retaining ring 18, which is used to prevent the retaining sleeve 17 from disengaging from the fixed seat 22.

[0029] The ferrule 17 not only serves to fix the nut 6, but also serves to fix the outer protective housing 8 after it is inserted into the slide groove 7. This completes the installation of the outer protective housing 8 at the same time, which is convenient and quick.

[0030] Through the above steps, the protective component of the railway track vibration damping fastener isolates the vibration damping fastener from contact with the outside world, thereby preventing the vibration damping fastener from being exposed to the external environment for a long time and causing corrosion. Moreover, the installation of the protective component is very convenient. Compared with the method of fixing with bolts, the construction efficiency is higher. The fixing component can fix the nut 6 during the installation of the protective component, preventing the nut 6 from loosening during vibration. After the fixing component is installed, the protective component is fixed at the same time, further improving the installation efficiency.

Claims

1. A railway track vibration damping fastening comprising a track main body (1) and a height adjustment pad (2); characterized in that: The utility model also includes fixed screw (3), elastic strip (4), screw thread cleat (5) and nut (6), the below of track main part (1) is equipped with height -adjusting backing pad (2), the surface of height -adjusting backing pad (2) is connected with fixed screw (3) threadedly, the upper end surface of height -adjusting backing pad (2) is equipped with elastic strip (4), the upper end of height -adjusting backing pad (2) is connected with screw thread cleat (5) threadedly, the upper end of screw thread cleat (5) is connected with nut (6) threadedly, screw thread cleat (5) is used for fixed and fastened elastic strip (4), elastic strip (4) is used for reducing the vibration of track main part (1), height -adjusting backing pad (2), fixed screw (3), elastic strip (4), screw thread cleat (5) and nut (6) jointly constitute shock -absorbing fastener, the surface of height -adjusting backing pad (2) is equipped with protection assembly for protecting shock -absorbing fastener, the upper end of nut (6) is equipped with fixed assembly for fixing nut (6).

2. The railway track dampening clip of claim 1, wherein: The protection assembly includes an outer protective shell (8), which is arranged on the upper end of the height-adjusting backing pad (2). The height-adjusting backing pad (2) is provided with a sliding groove (7) on both sides. The lower end of the outer protective shell (8) is slidingly arranged in the sliding groove (7). Spring seats (9) are fixedly installed on both sides of the outer protective shell (8). Sliding rods (11) are slidingly connected in the spring seats (9). A baffle (13) is fixedly connected between the two sliding rods (11). A first spring (16) is arranged in the spring seat (9) and located at the lower end of the sliding rod (11). The first spring (16) is used for pushing the sliding rod (11) upward.

3. The railway track dampening clip of claim 2, wherein: The lower end of the baffle (13) is fixedly connected with a lower sealing gasket (14). One side of the baffle (13) is provided with a side sealing gasket (15). One side of the outer protective shell (8) is provided with a groove matched with the side sealing gasket (15). The lower end of the lower sealing gasket (14) is in contact with the upper end surface of the track main body (1).

4. The railway track dampening clip of claim 3, wherein: The upper end of the sliding rod (11) is provided with a clamping block (12). The upper end of the spring seat (9) is rotatably connected with a clasp (10). The upper end of the clasp (10) is provided with a notch matched with the clamping block (12). The clasp (10) is provided with a cavity for the rotation of the clamping block (12).

5. The railway track dampening clip of claim 4, wherein: The fixed assembly includes a clamping sleeve (17), which is arranged at the upper end of the outer protective shell (8). A fixing seat (22) is fixedly installed at the upper end of the outer protective shell (8). A clamping ring (18) is fixedly connected in the fixing seat (22). The upper end of the clamping sleeve (17) is fixedly connected with a push rod (19). The push rod (19) is slidingly connected with the clamping ring (18). The upper end of the push rod (19) is provided with a second spring (20). The second spring (20) is used for fastening the clamping sleeve (17) and the nut (6).

6. The railway track dampening clip of claim 5, wherein: The upper end of the outer protective shell (8) is provided with an opening matched with the clamping sleeve (17). The outer protective shell (8) is slidingly connected with the clamping sleeve (17).

7. The railway track dampening clip of claim 6, wherein: One side of the lower end of the clamping sleeve (17) is provided with a side roller (21). The side roller (21) is in contact with one side of the nut (6). The side roller (21) is used for lifting the clamping sleeve (17) upward.

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