Track anti-loosening device and track structure

Abstract

The utility model provides a track anti-loosening device and a track structure, and relates to the technical field of railway tracks. The rail anti-loosening device comprises a mounting piece, a bolt, a nut and an anti-loosening cap, the installation part is used for being installed on the side wall of a rail and provided with a first through hole. A first clamping part is arranged on the outer wall of the nut, and a second clamping part is arranged on the inner wall of the locking cap; the bolt is used for sequentially penetrating through the rail and the first through hole and fixedly matched with the nut, the nut is sleeved with the anti-loosening cap, the anti-loosening cap is fixedly matched with the installation piece, and therefore the first clamping part and the second clamping part are matched in a clamping mode. The nut is sleeved with the anti-loosening cap, and then the anti-loosening cap is fixedly connected with the installation piece so that the anti-loosening cap can be prevented from rotating relative to the installation piece; under the condition, the second clamping part located on the inner wall of the anti-loosening nut is matched with the first clamping part on the outer wall of the nut in a clamping mode, so that the nut is fixed and prevented from rotating, the anti-loosening function of the bolt and the nut is effectively achieved, installation is convenient, and the installation efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of railway tracks, in particular to a track anti-loosening device and a track structure. Background Art

[0002] In the railway industry, a large number of bolts and nuts are used to install the track structure to ensure stability. However, during the passage of trains, especially when passing through tracks and switches, the train wheels will cause high-frequency impacts on the tracks, which can easily cause the bolts to loosen over time.

[0003] At present, the industry generally adopts anti-loosening devices to lock the installation state of the bolt connection pair to ensure the safety and stability of the track and turnout structure. However, the installation process of the existing anti-loosening devices is complicated, the installation efficiency is low, and the anti-loosening function cannot be effectively achieved. Utility Model Content

[0004] The utility model aims to provide a track anti-loosening device and a track structure, which are easy to install and can effectively prevent loosening.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In a first aspect, the utility model provides a track anti-loosening device, including a mounting member, a bolt, a nut and an anti-loosening cap;

[0007] The mounting member is used to be mounted on the side wall of the track, and the mounting member is provided with a first through hole;

[0008] The outer wall of the nut is provided with a first clamping portion, and the inner wall of the anti-loosening cap is provided with a second clamping portion;

[0009] The bolt is used to pass through the track and the first through hole in sequence and is fixedly matched with the nut, and the anti-loosening cap is sleeved outside the nut and is fixedly matched with the mounting member, so that the first clamping portion and the second clamping portion are clamped and matched.

[0010] In an optional embodiment, the first clamping portion is located at an end of the outer wall of the nut close to the mounting member.

[0011] In an optional embodiment, a first boss is further provided on the axial end surface of the nut close to the first clamping portion, and the first boss is used to space the first clamping portion and the mounting member.

[0012] In an optional embodiment, the first clamping portion and the second clamping portion are both tooth-shaped, and the first clamping portion and the second clamping portion are meshed with each other.

[0013] In an optional embodiment, a first mounting portion is protruded from a wall surface of the mounting member close to the nut, and the anti-loosening cap is provided with a second mounting portion, and the first mounting portion and the second mounting portion are fixedly matched.

[0014] In an optional embodiment, the first mounting portion is provided with a U-shaped groove or a first mounting hole, the second mounting portion is provided with a second mounting hole, and the track anti-loosening device also includes an anti-slip component, and the anti-slip component passes through the first mounting hole and the second mounting hole, or the anti-slip component passes through the U-shaped groove and the second mounting hole.

[0015] In an optional embodiment, the track anti-loosening device further comprises a base, the base is provided with an arc-shaped groove, the arc-shaped groove is provided with a second through hole, and the second through hole is used for the bolt to pass through;

[0016] An arc-shaped protrusion is convexly provided on the wall surface of the mounting piece away from the nut, and the arc-shaped groove and the arc-shaped protrusion are adapted and fitted.

[0017] In an optional embodiment, the wall surface of the mounting member away from the nut is planar and is used to be attached to the side wall of the track.

[0018] In an optional embodiment, the track anti-loosening device further includes a gasket, and the gasket is arranged between the nut and the mounting member;

[0019] And / or, a second boss is provided on a wall surface of the mounting member close to the nut, the second boss is located on a peripheral side of the first through hole, and the second boss is used to increase a distance between the nut and the mounting member.

[0020] In a second aspect, the utility model provides a track structure, comprising a track and a track anti-loosening device as described in any one of the aforementioned embodiments, wherein the track anti-loosening device is arranged on the track.

[0021] The beneficial effects of the track anti-loosening device and the track structure provided by the embodiments of the utility model include: the bolts are sequentially passed through the first through holes of the track and the mounting member and fixedly matched with the nuts, that is, after the nuts and bolts are tightened, the anti-loosening cap is sleeved outside the nut, and then the anti-loosening cap is fixedly connected to the mounting member to prevent the anti-loosening cap from rotating relative to the mounting member; in this case, the second clamping portion located on the inner wall of the anti-loosening cap is clamped and matched with the first clamping portion on the outer wall of the nut, so as to fix the nut and prevent the nut from rotating, thereby effectively realizing the anti-loosening function of the bolts and nuts, and the installation is convenient, which significantly improves the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of a track structure provided in an embodiment of the utility model;

[0024] Figure 2 An exploded view of a first embodiment of a track anti-loosening device provided by an embodiment of the utility model;

[0025] Figure 3 A schematic diagram of a nut structure provided in an embodiment of the utility model;

[0026] Figure 4 This is a schematic structural diagram of a second embodiment of a track anti-loosening device provided in an embodiment of the utility model.

[0027] Icons: 1-track structure; 10-track anti-loosening device; 20-track; 100-mounting piece; 110-first through hole; 120-first mounting portion; 121-U-shaped groove; 130-arc-shaped protrusion; 140-second boss; 200-bolt; 300-nut; 310-first clamping portion; 320-first boss; 400-anti-loosening cap; 410-second clamping portion; 420-second mounting portion; 421-second mounting hole; 500-anti-slip piece; 600-base; 610-arc-shaped groove; 620-second through hole; 700-gasket. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the railway industry, a large number of bolts and nuts are used to install the track structure to ensure stability. However, during the passage of trains, especially when passing through tracks and switches, the train wheels will cause high-frequency impacts on the tracks, which can easily cause the bolts to loosen over time.

[0035] At present, the industry generally adopts anti-loosening devices to lock the installation state of the bolt connection pair to ensure the safety and stability of the track and turnout structure. However, the installation process of the existing anti-loosening devices is complicated, the installation efficiency is low, and the anti-loosening function cannot be effectively achieved.

[0036] Based on the above questions, please refer to Figures 1 to 3The embodiment of the utility model provides a track structure 1, including a track 20 and a track anti-loosening device 10. By setting the track anti-loosening device 10 on the track 20, the nuts 300 and the bolts 200 can be prevented from loosening while achieving the fixing effect.

[0037] In detail, the track anti-loosening device 10 includes a mounting member 100 , a bolt 200 , a nut 300 and an anti-loosening cap 400 .

[0038] Among them, the mounting member 100 is used to be installed on the side wall of the track 20, and the mounting member 100 is provided with a first through hole 110; the outer wall of the nut 300 is provided with a first clamping portion 310, and the inner wall of the anti-loosening cap 400 is provided with a second clamping portion 410; the bolt 200 is used to pass through the track 20 and the first through hole 110 in sequence and is fixedly matched with the nut 300, and the anti-loosening cap 400 is sleeved on the outside of the nut 300 and is fixedly matched with the mounting member 100, so that the first clamping portion 310 and the second clamping portion 410 are clamped and matched.

[0039] In this embodiment, the bolt 200 is sequentially passed through the rail 20 and the first through hole 110 of the mounting member 100 and fixedly matched with the nut 300, that is, after the nut 300 and the bolt 200 are tightened, the anti-loosening cap 400 is sleeved on the nut 300, and then the anti-loosening cap 400 and the mounting member 100 are fixedly connected to prevent the anti-loosening cap 400 from rotating relative to the mounting member 100; in this case, the second clamping portion 410 located on the inner wall of the anti-loosening cap 400 is clamped and matched with the first clamping portion 310 on the outer wall of the nut 300, so as to fix the nut 300 and prevent the nut 300 from rotating, thereby effectively realizing the anti-loosening function of the bolt 200 and the nut 300, and the installation is convenient, which significantly improves the installation efficiency.

[0040] Furthermore, the first clamping portion 310 is located at one end of the outer wall of the nut 300 close to the mounting member 100 , and the second clamping portion 410 is located at one end of the inner wall of the anti-loosening cap 400 away from the mounting member 100 .

[0041] In this embodiment, the first clamping portion 310 is annular and is located at one axial end of the nut 300, and in the installed state, the first clamping portion 310 is located at one end of the outer wall of the nut 300 close to the mounting member 100, and the second clamping portion 410 is located at one end of the inner wall of the anti-loosening cap 400 away from the mounting member 100, thereby realizing the mutual clamping cooperation between the first clamping portion 310 and the second clamping portion 410.

[0042] Furthermore, a first boss 320 is provided on the axial end surface of the nut 300 close to the first clamping portion 310 , and the first boss 320 is used to space the first clamping portion 310 from the mounting member 100 .

[0043] In this embodiment, a first boss 320 is provided on the end face of the nut 300 so that the first clamping portion 310 and the mounting member 100 are spaced apart from each other. This prevents the first clamping portion 310 from directly contacting the surface of the mounting member 100 during the installation process, thereby avoiding damage to the nut 300 or destruction of the surface of the mounted member 100 due to an excessively large contact area.

[0044] Furthermore, the first clamping portion 310 and the second clamping portion 410 are both tooth-shaped, and the first clamping portion 310 and the second clamping portion 410 are meshed with each other.

[0045] In this embodiment, since the first clamping portion 310 and the second clamping portion 410 are both annular serrated and can engage with each other, when the nut 300 is tightened to any angle, the second clamping portion 410 of the anti-loosening cap 400 can engage with the first clamping portion 310. Therefore, when the nut 300 is tightened, there is no need to further tighten the nut 300 or loosen the nut 300. The anti-loosening cap 400 only needs to be directly put on the outside of the nut 300, so that the second clamping portion 410 of the anti-loosening cap 400 can engage with the first clamping portion 310. Therefore, the installation is convenient and quick, and the installation efficiency is significantly improved.

[0046] Furthermore, a first mounting portion 120 is protruded from a wall surface of the mounting member 100 close to the nut 300 , and the anti-loosening cap 400 is provided with a second mounting portion 420 , and the first mounting portion 120 and the second mounting portion 420 are fixedly matched.

[0047] In this embodiment, the number of the first mounting portion 120 and the second mounting portion 420 is usually two, and the two first mounting portions 120 and the second mounting portions 420 are correspondingly arranged, and the two first mounting portions 120 are located on both sides of the first through hole 110, and the mounting member 100 and the anti-loosening cap 400 can be detachably connected through the first mounting portion 120 and the second mounting portion 420. Not only that, the fixed cooperation between the first mounting portion 120 and the second mounting portion 420 can also limit the anti-loosening cap 400 to prevent the anti-loosening cap 400 from rotating, so that the anti-loosening cap 400 can effectively prevent the nut 300 from loosening.

[0048] Of course, in other embodiments, the number and distribution of the first mounting portion 120 and the second mounting portion 420 may be other arrangements, as long as the mounting portion can be connected to the anti-loosening cap 400, and no specific limitation is made here.

[0049] Furthermore, the first mounting portion 120 is provided with a U-shaped groove 121 or a first mounting hole, the second mounting portion 420 is provided with a second mounting hole 421, and the rail anti-loosening device 10 also includes an anti-slip component 500, the anti-slip component 500 passes through the first mounting hole and the second mounting hole 421, or the anti-slip component 500 passes through the U-shaped groove 121 and the second mounting hole 421.

[0050] In this embodiment, the anti-slip component 500 is an open pin, and the first mounting portion 120 can be set as a U-shaped groove 121, or can be set as a through hole of any shape. Therefore, by passing the anti-slip component 500 through the second mounting hole 421 and the first mounting hole, or passing the anti-slip component 500 through the second mounting hole 421 and the U-shaped groove 121, the first mounting portion 120 and the second mounting portion 420 can be fixedly matched, thereby preventing the anti-slip cap 400 from falling off the mounting component 100, and further ensuring the installation stability of the anti-slip cap 400; and when the anti-slip cap 400 needs to be removed, it is only necessary to remove the anti-slip component 500 from the U-shaped groove 121 (or the first mounting hole) and the second mounting hole 421.

[0051] Of course, in other embodiments, the anti-dropping member 500 may also be other structures or components, as long as the above-mentioned effects or functions can be achieved, and no specific limitation is made here.

[0052] Furthermore, the rail anti-loosening device 10 also includes a base 600, which has an arc-shaped groove 610, and the arc-shaped groove 610 has a second through hole 620, and the second through hole 620 is used for the bolt 200 to pass through; the wall surface of the mounting member 100 away from the nut 300 is convexly provided with an arc-shaped protrusion 130, and the arc-shaped groove 610 and the arc-shaped protrusion 130 are adapted and fit together.

[0053] In this embodiment, the arc groove 610 and the arc protrusion 130 are both arc-shaped surfaces and are adapted to each other, which can facilitate the installation component 100 to rotate relative to the base 600 while the arc groove 610 and the arc protrusion 130 remain in contact, thereby achieving automatic leveling.

[0054] Specifically, a guide portion is further provided in the arc-shaped groove 610 , and the arc-shaped protrusion 130 is provided with a guide portion adapted and slidably matched with the guide portion of the arc-shaped groove 610 , so as to enable the mounting member 100 and the base 600 to slide along the extension direction of the guide portion.

[0055] Of course, if Figure 4 As shown, in other embodiments, the wall surface of the mounting member 100 away from the nut 300 is planar and is used to be attached to the side wall of the track 20 , so as to adapt to different usage scenarios and improve the adaptability of the track anti-loosening device 10 .

[0056] Furthermore, the track anti-loosening device 10 also includes a gasket 700 , which is disposed between the nut 300 and the mounting member 100 .

[0057] In this embodiment, the washer 700 is disposed between the nut 300 and the mounting member 100, and is used to raise the height of the nut 300 relative to the plane where the mounting member 100 is located, and further makes the height of the side wall of the nut 300 relative to the plane where the mounting member 100 is located greater than the height of the first mounting portion 120, so as to facilitate the use of a wrench to tighten the nut 300. In addition, the washer 700 can also play a role in vibration reduction and loosening prevention.

[0058] A second boss 140 is disposed on a wall surface of the mounting member 100 close to the nut 300 . The second boss 140 is located on a peripheral side of the first through hole 110 . The second boss 140 is used to increase the distance between the nut 300 and the mounting member 100 .

[0059] In this embodiment, the second boss 140 is provided so that the installation height of the nut 300 can be greater than the height of the first installation portion 120 , so that the nut 300 can be tightened with a wrench.

[0060] It should be noted that, in some embodiments, at least one of the boss and the gasket 700 may be provided, and in other embodiments, the boss and the gasket 700 may not be provided, which is not specifically limited here.

[0061] In summary, the utility model provides a track anti-loosening device 10 and a track structure 1, in which the bolt 200 is sequentially passed through the first through hole 110 of the track 20 and the mounting member 100 and fixedly matched with the nut 300, that is, after the nut 300 and the bolt 200 are tightened, the anti-loosening cap 400 is sleeved outside the nut 300, and then the anti-loosening cap 400 and the mounting member 100 are fixedly connected to prevent the anti-loosening cap 400 from rotating relative to the mounting member 100; in this case, the second clamping portion 410 located on the inner wall of the anti-loosening cap 400 is clamped and matched with the first clamping portion 310 on the outer wall of the nut 300, so as to fix the nut 300 and prevent the nut 300 from rotating, thereby effectively realizing the anti-loosening function of the bolt 200 and the nut 300, and the installation is convenient, which significantly improves the installation efficiency.

[0062] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A track anti-loosening device, characterized in that: Including mounting parts, bolts, nuts and locking caps; The mounting member is used to be mounted on the side wall of the track, and the mounting member is provided with a first through hole; The outer wall of the nut is provided with a first clamping portion, and the inner wall of the anti-loosening cap is provided with a second clamping portion; The bolt is used to pass through the track and the first through hole in sequence and is fixedly matched with the nut, and the anti-loosening cap is sleeved outside the nut and is fixedly matched with the mounting member, so that the first clamping portion and the second clamping portion are clamped and matched; The first clamping portion is located at one end of the outer wall of the nut close to the mounting member; A first boss is also provided on the axial end surface of the nut close to the first clamping portion, and the first boss is used to space the first clamping portion from the mounting member.

2. The track anti-loosening device according to claim 1, characterized in that: The first clamping portion and the second clamping portion are both tooth-shaped, and the first clamping portion and the second clamping portion are meshed with each other.

3. The track anti-loosening device according to claim 1, characterized in that: The wall surface of the mounting piece close to the nut is also convexly provided with a first mounting portion, and the anti-loosening cap is provided with a second mounting portion, and the first mounting portion and the second mounting portion are fixedly matched.

4. The track anti-loosening device according to claim 3, characterized in that: The first mounting portion is provided with a U-shaped groove or a first mounting hole, the second mounting portion is provided with a second mounting hole, and the track anti-loosening device also includes an anti-slip component, the anti-slip component is passed through the first mounting hole and the second mounting hole, or the anti-slip component is passed through the U-shaped groove and the second mounting hole.

5. The track anti-loosening device according to claim 1, characterized in that: The track anti-loosening device also includes a base, the base is provided with an arc-shaped groove, the arc-shaped groove is provided with a second through hole, and the second through hole is used for the bolt to pass through; An arc-shaped protrusion is convexly provided on the wall surface of the mounting piece away from the nut, and the arc-shaped groove and the arc-shaped protrusion are adapted and fitted.

6. The track anti-loosening device according to claim 1, characterized in that: The wall surface of the mounting piece away from the nut is planar and is used to be attached to the side wall of the track.

7. The track anti-loosening device according to claim 1, characterized in that: The track anti-loosening device further includes a gasket, which is arranged between the nut and the mounting member; And / or, a second boss is provided on a wall surface of the mounting member close to the nut, the second boss is located on a peripheral side of the first through hole, and the second boss is used to increase a distance between the nut and the mounting member.

8. A track structure, characterized in that: It comprises a track and a track anti-loosening device as described in any one of claims 1 to 7, wherein the track anti-loosening device is arranged on the track.

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