Track butt joint, track insulation butt joint and track thereof

Abstract

The utility model belongs to the field of rail butt joints, and particularly relates to a rail butt joint, a rail insulation butt joint and a rail thereof, the rail butt joint comprises a bracket and two locking blocks oppositely arranged on two sides of the bracket; the upper end face of the bracket is used for being attached to the bottom face of the rail bottom of the rail, and locking matching faces are arranged on the two sides of the lower end face of the bracket in the length direction of the rail. A limiting groove is formed in one side of the locking block, the upper groove face of the limiting groove is arranged to be a locking inclined face I parallel to the rail bottom inclined face of the rail, and the lower groove face of the limiting groove is arranged to be a locking inclined face II parallel to the locking matching face. The rail butt joint is simple in structure and convenient to disassemble and assemble, two rails are stably and reliably connected and fixed, the defects of bevels, steps, staggered teeth and the like of the rail joint are reduced, the stability of the rail joint is improved, huge impact of train operation is reduced, and the stability and comfort of a train are improved.

Description

Technical Field

[0001] The utility model belongs to the field of rail butt joints, and in particular relates to a rail butt joint, a rail insulating butt joint and a rail thereof. Background Art

[0002] As a widely used mode of transportation, railway transportation has the advantages of low transportation cost, large load capacity, low energy consumption, and little impact from climate. In order to provide a continuous rolling surface for the wheels and maintain the integrity of the track structure, connections must be set between the tracks, namely track joints.

[0003] Ordinary rail insulating joints have the following defects: there will be rail gaps, corners, steps and misaligned teeth between the two rails. Therefore, when the train runs at the rail joints, it will cause huge impact, causing rail vibration, shortening the service life of various components, and affecting the stability and comfort of the train. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a rail butt joint, a rail insulating butt joint and a rail thereof which are simple in structure, convenient to assemble and disassemble and can stably and reliably connect and fix two rails.

[0005] The utility model provides a rail butt joint, comprising a bracket and two locking blocks arranged oppositely on two sides of the bracket;

[0006] The upper end surface of the bracket is used to fit with the bottom surface of the rail bottom of the track, and locking mating surfaces are arranged on both sides of the lower end surface of the bracket along the length direction of the track;

[0007] A limiting groove is provided on one side of the locking block, the upper groove surface of the limiting groove is provided as a locking inclined surface I parallel to the rail bottom inclined surface of the track, and the lower groove surface of the limiting groove is provided as a locking inclined surface II parallel to the locking matching surface;

[0008] The locking block is tightly matched with the bracket. When matched, the locking inclined surface I is in contact with the rail bottom inclined surface of the track, and the locking inclined surface II is in contact with the locking matching surface.

[0009] Furthermore, after the locking block is fastened to the bracket, a groove bottom of the limiting groove is spaced apart from a rail bottom side surface of the rail.

[0010] Furthermore, a fastening installation hole is provided on the side wall of the bracket;

[0011] The locking block is provided with a fastening installation through hole;

[0012] The bracket and the locking block are fastened together by a fastener, and the fastener is installed through the fastening installation through hole and the fastening installation hole.

[0013] Furthermore, the fastening installation hole is a threaded hole, the fastener is a bolt, one end of the bolt is clamped on the locking block, and the rod body passes through the fastening installation through hole and is threadedly matched with the fastening installation hole.

[0014] Furthermore, the fastening mounting hole is a through hole, and the fastener is a bolt and nut group, one end of the bolt in the bolt and nut group is clamped on one of the locking blocks, the rod body passes through one of the fastening mounting through holes, the fastening mounting hole and another fastening mounting through hole and extends out on the other locking block, and the nut in the bolt and nut group is threadedly connected to the bolt and abuts against the other locking block.

[0015] The utility model also provides a track insulation butt joint, comprising the above-mentioned track butt joint, wherein the track butt joint insulates two connected tracks from each other;

[0016] Furthermore, the bracket and the locking block in the rail butt joint are made of insulating material;

[0017] Alternatively, a bracket insulating gasket is provided between the upper end surface of the bracket and the bottom surface of the rail of the track, and a locking block insulating gasket is provided between the locking inclined surface I and the bottom inclined surface of the rail of the track.

[0018] Furthermore, the rail insulating butt joint also includes insulating clamping plates arranged on both sides of the rail waist of the rail, and the two insulating clamping plates are fastened to each other by a fastening structure.

[0019] Furthermore, the fastening structure includes a bolt and nut set and two sets of insulating clamping plate fixing plates, and the two sets of insulating clamping plate fixing plates are arranged on two connected tracks;

[0020] The insulating clamping plate fixing plate, the insulating clamping plate and the track are provided with through holes, and the bolt and nut group is fastened and connected with the insulating clamping plate fixing plate, the insulating clamping plate and the track through the through holes.

[0021] Furthermore, the rail insulating butt joint further comprises a rail insulating spacer arranged between the two rail end surfaces.

[0022] The utility model also provides a track, comprising two tracks and the track butt joint, wherein the two tracks are fixedly connected via the track butt joint.

[0023] The rail butt joint provided by the utility model has the following beneficial effects:

[0024] 1. The two rails are locked together through two groups of four inclined surfaces, and the wedging of the inclined surfaces is used to achieve adaptive alignment and clamping of the two rails. The inclined surfaces naturally guide the rails to align to the correct position, ensuring the alignment of the two rails and reducing installation errors.

[0025] Second, the self-guiding characteristics of the inclined surface structure make the alignment of the two tracks simpler and more direct during the assembly process. As the locking block and the bracket are gradually tightened, the two tracks naturally move to the precisely aligned position, simplifying the installation process. In addition, the inclined surface structure is not only conducive to installation, but also convenient for subsequent maintenance and replacement.

[0026] Third, the combination of two groups of four inclined planes gives the locking structure a sufficient contact area. On the one hand, it can evenly distribute stress over a larger contact area, thereby reducing material fatigue or damage caused by stress concentration, and thus helping to enhance the stability and durability of the entire joint. On the other hand, when the track is subjected to external forces (such as the load of a running train), the inclined plane structure will fit more closely due to friction, thereby reducing looseness caused by vibration or load changes.

[0027] 4. When the bracket and the locking block are made of insulating materials, or insulating gaskets are provided between the bracket and the locking block and the rail, the rail butt joint and the rail have an insulating function to shield current transmission.

[0028] The rail butt joint has a simple structure, is easy to disassemble and assemble, and can stably and reliably connect and fix the two rails. It reduces defects such as angle folds, steps, and misaligned teeth of the rail joint, improves its stability, reduces the huge impact of train operation, and improves the stability and comfort of the train. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Attached Figure 1 It is a schematic diagram of the structure of the utility model;

[0030] Attached Figure 2 It is a side view of the utility model;

[0031] Attached Figure 3 It is a front view of the utility model;

[0032] Attached Figure 4 For attachment Figure 3 AA section view.

[0033] In the figure, 1-bracket; 11-locking mating surface; 12-fastening mounting hole; 2-locking block; 21-limiting groove; 211-locking slope I; 212-locking slope II; 22-fastening mounting through hole; 3-bracket insulating gasket; 4-locking block insulating gasket; 5-insulating clamp; 6-insulating clamp fixing plate; 7-track; 71-bottom surface of rail bottom; 72-rail bottom slope; 73-rail waist; 8-track insulating spacer. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] As attached Figure 1 -Attached Figure 4 As shown, the utility model provides a rail butt joint, comprising a bracket 1 and two locking blocks 2 arranged oppositely on both sides of the bracket 1;

[0039] The upper end surface of the bracket 1 is used to fit with the bottom surface 71 of the rail 7, and locking mating surfaces 11 are provided on both sides of the lower end surface of the bracket 1 along the length direction of the rail 7;

[0040] The locking block 2 is provided with a limiting groove 21 on one side facing the bracket 1, the upper groove surface of the limiting groove 21 is provided as a locking inclined surface I 211 parallel to the rail bottom inclined surface 72 of the rail 7, and the lower groove surface of the limiting groove 21 is provided as a locking inclined surface II 212 parallel to the locking mating surface 11;

[0041] The locking block 2 is tightly matched with the bracket 1, and can be specifically fastened with fasteners. When matched, the locking bevel I211 is in contact with the rail bottom bevel 72 of the track 7, and the locking bevel II212 is in contact with the locking matching surface 11, that is, the locking bevel I211 and the locking bevel II212 are in a clamping state to clamp the rail bottom of the track 7 and the bracket 1.

[0042] The rail butt joint provided by the utility model has the following beneficial effects:

[0043] 1. The two rails 7 are locked and matched by two groups of four inclined surfaces, and the wedging of the inclined surfaces is used to realize the adaptive alignment and clamping of the two rails 7. The inclined surfaces naturally guide the rails to align to the correct position, thereby ensuring the alignment effect of the two rails 7 and reducing installation errors.

[0044] Second, the self-guiding property of the inclined surface structure makes the alignment of the two rails 7 simpler and more direct during the assembly process. As the locking block 2 and the bracket 1 are gradually tightened, the two rails naturally move to the precisely aligned position, simplifying the installation process. In addition, the inclined surface structure is not only conducive to installation, but also convenient for subsequent maintenance and replacement.

[0045] Third, the cooperation of two groups of four inclined surfaces allows the locking structure to have a sufficient contact area. On the one hand, it can evenly distribute stress over a larger contact area, thereby reducing material fatigue or damage caused by stress concentration, and thus helping to enhance the stability and durability of the entire joint. On the other hand, when the track 7 is subjected to external forces (such as the load during the operation of the train), the inclined surface structure will fit more closely due to friction, thereby reducing looseness caused by vibration or load changes.

[0046] Fourth, when the bracket 1 and the locking block 2 are made of insulating materials, or insulating gaskets are provided between the bracket 1 and the locking block 2 and the track 7, the track joint and the track 7 have an insulating function to shield current transmission.

[0047] The rail butt joint has a simple structure, is easy to disassemble and assemble, and can stably and reliably connect and fix the two rails 7, thereby reducing defects such as corners, steps, and misaligned teeth of the rail joint, improving its stability, reducing the huge impact of train operation, and improving the stability and comfort of the train.

[0048] In one embodiment, after the locking block 2 is fastened to the bracket 1, the bottom of the limit groove 21 is spaced from the bottom side of the track 7, that is, the locking bevel I 211 and the locking bevel II 212 on the locking block 2 have a clamping margin, allowing the locking block 2 to have a certain range of adjustment space to adapt to slight changes in the size of the track 7, so that effective locking can be achieved even when the sizes of the two tracks 7 are slightly different. In addition, over time, the railway track 7 may undergo slight displacement or deformation due to continuous loads and environmental factors. The clamping margin allows a certain degree of adjustment, which helps maintain the long-term stability and continuity of the joint.

[0049] In one embodiment, the side wall of the bracket 1 is provided with a fastening installation hole 12; the locking block 2 is provided with a fastening installation through hole 22; the bracket 1 and the locking block 2 are fastened together by fasteners, and the fasteners are installed through the fastening installation through holes 22 and the fastening installation holes 12, so that the bracket 1 and the locking block 2 are brought close to each other and clamped together, and after both sets of locking blocks 2 are installed, a clamping force is formed to clamp and lock. In this way, not only a stable connection between the bracket 1 and the locking block 2 is achieved, but also this connection method makes the installation process simple and fast, and is convenient for on-site operation.

[0050] In one embodiment, the fastening installation hole 12 is a threaded hole. In this embodiment, fastening installation holes 12 are provided on both sides of the bracket 1. The fastener is a bolt, one end of which is clamped on the locking block 2, and the rod passes through the fastening installation through hole 22 and is threadedly matched with the fastening installation hole 12. In this way, the fastening of the two locking blocks 2 and the bracket 1 is achieved by two bolts.

[0051] The utility model also provides a track insulation butt joint, including the above-mentioned track butt joint, wherein the track butt joint insulates two connected tracks 7 from each other, that is, when the above-mentioned track butt joint is used to butt two tracks 7, the two tracks 7 can be insulated from each other;

[0052] In one of the embodiments, the bracket 1 and the locking block 2 in the rail joint are made of insulating material. In this embodiment, the bracket insulating gasket 3 and the locking block insulating gasket 4 may not be provided.

[0053] In another embodiment, a bracket insulating gasket 3 is provided between the upper end surface of the bracket 1 and the bottom surface 71 of the rail 7, and a locking block insulating gasket 4 is provided between the locking inclined surface Ⅰ211 and the bottom inclined surface 72 of the rail 7. In this embodiment, by adding the bracket insulating gasket 3 and the locking block insulating gasket 4, on the one hand, the friction coefficient of the contact surface can be increased, thereby enhancing the holding force between the connection surfaces and improving the stability and anti-slip ability of the entire joint. On the other hand, the additional gasket can also make up for the slight dimensional error between the two sets of inclined surfaces to ensure the accuracy and quality of assembly. In addition, the bracket insulating gasket 3 and the locking block insulating gasket 4 are made of insulating materials, so as to provide electrical insulation effect and effectively cut off the current transmission between the rail 7 and the rail joint. At this time, the bracket 1 and the locking block 2 can be made of metal materials with better strength non-insulating materials to improve the reliability of the equipment. The insulating material in this embodiment is preferably an insulating composite material.

[0054] In one of the embodiments, the rail insulation butt joint also includes an insulating splint 5 arranged on both sides of the rail waist 73 of the rail 7, and the two insulating splints 5 are fastened to each other by a fastening structure. By setting the insulating splint 5 to fix and clamp the rail waists 73 of the two rails 7, the lateral stability and overall structural strength of the rail joint are effectively increased. The rail 7 is made more stable when subjected to lateral forces (such as the lateral thrust generated when a train passes), and the possibility of the rail 7 being offset or deformed is reduced. At the same time, the use of the insulating splint 5 can also disperse the load passing through the bracket 1 and the two locking blocks 2 to a certain extent, reduce the stress concentration at the docking point, and extend the service life of the rail joint. At the same time, the clamping of the insulating splint 5 also serves to reduce the misalignment and folding angle between the two rails 7.

[0055] In one embodiment, the fastening structure includes a bolt and nut group and two groups of insulating clamping plate fixing plates 6, and the two groups of insulating clamping plate fixing plates 6 are arranged on two connected tracks 7; through holes are arranged on the insulating clamping plate fixing plates 6, the insulating clamping plates 5 and the tracks 7, and the bolt and nut group fastens and connects the insulating clamping plate fixing plates 6, the insulating clamping plates 5 and the tracks 7 through the through holes. By setting the above fastening structure, the stable clamping of the two insulating clamping plates 5 can be ensured.

[0056] In one embodiment, the track insulating butt joint further includes a track insulating spacer 8 disposed between the end surfaces of the two tracks 7 , thereby improving the fit tightness of the two tracks 7 and insulating the two tracks 7 .

[0057] The utility model also provides a track, comprising two tracks 7 and the track butt joint, wherein the two tracks 7 are fixedly connected via the track butt joint.

[0058] The above is only an embodiment and does not limit the present invention in any way. Any person skilled in the art can make many possible changes, modifications or modifications to the present invention without departing from the scope of the present invention by using the above disclosed technical contents. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the present invention should fall within the scope of protection of the present invention.

Claims

1. A rail butt joint, characterized in that: It comprises a bracket (1) and two locking blocks (2) arranged oppositely on two sides of the bracket (1); The upper end surface of the bracket (1) is used to be arranged in close contact with the bottom surface (71) of the rail (7), and locking mating surfaces (11) are arranged on both sides of the lower end surface of the bracket (1) along the length direction of the rail (7); A limiting groove (21) is provided on one side of the locking block (2), the upper groove surface of the limiting groove (21) is provided as a locking inclined surface I (211) parallel to the rail bottom inclined surface (72) of the rail (7), and the lower groove surface of the limiting groove (21) is provided as a locking inclined surface II (212) parallel to the locking matching surface (11); The locking block (2) is tightly matched with the bracket (1), and when matched, the locking inclined surface I (211) is in contact with the rail bottom inclined surface (72) of the rail (7), and the locking inclined surface II (212) is in contact with the locking matching surface (11).

2. The rail butt joint according to claim 1, characterized in that After the locking block (2) and the bracket (1) are tightly matched, the bottom of the limiting groove (21) is spaced apart from the side surface of the bottom of the track (7).

3. The rail butt joint according to claim 1, characterized in that: The side wall of the bracket (1) is provided with a fastening installation hole (12); The locking block (2) is provided with a fastening installation through hole (22); The bracket (1) and the locking block (2) are fastened together by a fastener, and the fastener is installed through the fastening installation through hole (22) and the fastening installation hole (12).

4. The rail butt joint according to claim 3, characterized in that: The fastening installation hole (12) is a threaded hole, the fastener is a bolt, one end of the bolt is clamped on the locking block (2), and the rod body passes through the fastening installation through hole (22) and is threadedly matched with the fastening installation hole (12).

5. A rail insulated butt joint, characterized in that: It comprises the rail butt joint as claimed in any one of claims 1 to 4, wherein the rail butt joint insulates two connected rails (7) from each other.

6. The rail insulating butt joint according to claim 5, characterized in that: The bracket (1) and the locking block (2) in the rail butt joint are made of insulating material; Alternatively, a bracket insulating gasket (3) is provided between the upper end surface of the bracket (1) and the rail bottom surface (71) of the rail (7), and a locking block insulating gasket (4) is provided between the locking inclined surface I (211) and the rail bottom inclined surface (72) of the rail (7).

7. The rail insulating butt joint according to claim 5, characterized in that: It also includes insulating clamping plates (5) arranged on both sides of the rail waist (73) of the rail (7), and the two insulating clamping plates (5) are fastened to each other via a fastening structure.

8. The rail insulating butt joint according to claim 7, characterized in that: The fastening structure comprises a bolt and nut group and two groups of insulating clamping plate fixing plates (6), and the two groups of insulating clamping plate fixing plates (6) are arranged on two connected rails (7); Through holes are provided on the insulating clamp plate fixing plate (6), the insulating clamp plate (5) and the track (7), and the bolt and nut assembly is fastened and connected to the insulating clamp plate fixing plate (6), the insulating clamp plate (5) and the track (7) through the through holes.

9. The rail insulating butt joint according to claim 6, characterized in that: It also includes a track insulating spacer (8) arranged between the end surfaces of the two tracks (7).

10. A track, characterized in that It comprises the rail butt joint as claimed in any one of claims 1 to 4 or the rail insulating butt joint as claimed in any one of claims 5 to 9, and also comprises two rails (7), the two rails (7) are fixedly connected via the rail butt joint or the rail insulating butt joint.

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