CN215104302U

CN215104302U - Steel rail fastener for electric car

Info

Publication number: CN215104302U
Application number: CN202120751140.8U
Authority: CN
Inventors: 程樱; 吴元炸; 余成科; 徐鑫
Original assignee: Taizhou Dahua Railway Materials Co ltd
Current assignee: Taizhou Dahua Railway Materials Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-12-10
Anticipated expiration: 2031-04-13

Abstract

The utility model belongs to the technical field of the track traffic, a trolley-bus rail fastener is related to, it has solved current rail fastener life low scheduling problem. The steel rail fastener comprises a substrate assembly, an elastic strip, a spiral spike and a pre-buried sleeve, wherein a mounting groove is formed in a sleeper, a mounting hole is formed in the bottom surface of the mounting groove, and the pre-buried sleeve is inserted into the mounting hole; the base plate assembly is arranged in the mounting groove, the side wall of the base plate assembly is in contact with the side wall of the mounting groove, the spiral spike sequentially penetrates the elastic strip and the base plate assembly to be inserted into the embedded sleeve, and the elastic strip can buckle and press the trolley rail. This rail fastener is because the lateral wall of base plate subassembly and the lateral wall of mounting groove contact, consequently, can share the partial external force that the screw spike received to alleviate the external force that the screw spike received, reduce its cracked probability, thereby improve this rail fastener's life.

Description

Steel rail fastener for electric car

Technical Field

The utility model belongs to the technical field of the track traffic, a trolley-bus rail fastener is related to.

Background

At present, a fastener is generally required to be installed on a steel rail of a tramcar so as to ensure that the tramcar can be more stable in use; the existing fastener has a complex structure, is troublesome to install and debug in use, has poor flexibility in adjusting the gauge, and is inconvenient to use; there is a need for improvement.

In order to solve the above problems, the applicant filed a patent named "tram rail fastener (CN 205529713U)", which includes a rail bottom plate, an elastic pad, a B-shaped elastic strip, an insulating gauge block and a bolt assembly, wherein the elastic pad is attached to the upper end surface of the rail bottom plate; the outer side of the insulating gauge block is provided with a groove, the groove and the vertical block on the rail bottom plate have a certain distance, and the inner end surface of the insulating gauge block is respectively matched with the steel rail and the elastic base plate; one end of the B-shaped elastic strip is pressed on the rail bottom plate, and the other end of the B-shaped elastic strip is pressed on the insulating gauge block; the bolt assembly penetrates through the rail bottom plate and is in press fit with the B-shaped elastic strip.

The groove is formed in the insulating gauge block, and a certain distance is formed between the groove and the upright column on the rail bottom plate, so that the insulating gauge block can have a certain moving interval, the distance between the inner side surface of the insulating gauge block and the outer side surface of the elastic base plate can be adjusted when the gauge needs to be adjusted, and the use is convenient; through the press fit of the B-type elastic strip and the bolt component, the installation and debugging are convenient.

However, when the rail fastener is connected with a sleeper, only the bolt assembly is stressed, and when the bolt assembly is subjected to external force in the horizontal direction, the stress is concentrated and large, so that the rail fastener is easy to break and has a short service life.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided an electric car rail fastener, the utility model aims to solve the technical problem that: how to improve the service life of the steel rail fastener.

The purpose of the utility model can be realized by the following technical proposal:

a tramcar rail fastener is characterized by comprising a substrate assembly, an elastic strip, a spiral spike and a pre-buried sleeve, wherein a mounting groove is formed in a sleeper, a mounting hole is formed in the bottom surface of the mounting groove, and the pre-buried sleeve is inserted into the mounting hole; the base plate assembly is arranged in the mounting groove, the side wall of the base plate assembly is in contact with the side wall of the mounting groove, the spiral spike sequentially penetrates through the elastic strip and the base plate assembly to be inserted into the embedded sleeve, and the elastic strip can buckle the tramcar steel rail.

The working principle is as follows: when the device is installed, the embedded casing is installed on a sleeper, then the substrate assembly is placed in the installation groove of the sleeper, the side wall of the sleeper is in contact with the side wall of the installation groove, then the spiral spike sequentially penetrates through the elastic strip and the substrate assembly and is finally inserted into the embedded casing, and the elastic strip can be used for buckling and pressing the tramcar rail, so that the installation of the tramcar rail is realized; because the lateral wall of base plate subassembly contacts with the lateral wall of mounting groove, consequently, can share the partial external force that the spiral spike receives to alleviate the external force that the spiral spike received, reduce its cracked probability, thereby improve this rail fastener's life.

In the above-mentioned rail fastener for electric cars, as an aspect, the base plate assembly includes a base plate body, a bottom surface of the base plate body contacts with a bottom surface of the mounting groove, and a side wall of the base plate body contacts with a side wall of the mounting groove. In this scheme, the substrate assembly includes only the substrate body.

In the above-mentioned trolley-bus rail fastener, as another scheme, the base plate subassembly includes base plate body and base plate height adjustment backing plate, the lower surface of base plate height adjustment backing plate with the bottom surface of mounting groove contacts, the lateral wall of base plate height adjustment backing plate with the lateral wall of mounting groove contacts, the lower surface of base plate body with the upper surface of base plate height adjustment backing plate contacts. In this scheme, base plate subassembly has included base plate body and base plate height-adjusting backing plate down.

In foretell trolley-bus rail fastener, the upper surface of base plate body is seted up flutedly, rail fastener still includes rail lower bolster and insulating gauge block, rail lower bolster set up in the recess, insulating gauge block set up in the edge of rail lower bolster, and support respectively support lean on rail lower bolster and trolley-bus rail, the one end of bullet strip support in on the base plate body, the other end of bullet strip support in on the insulating gauge block. The elastic strips are respectively abutted against the lower rail base plate and the trolley bus steel rail, and when the spiral spike is screwed, the trolley bus steel rail can be buckled through the elastic strips, so that the trolley bus steel rail is fixed.

In an above-mentioned trolley-bus rail fastener, rail fastener still includes the rail and lowers the high backing plate, the rail is lowered the high backing plate and is set up in between rail lower backing plate and the recess tank bottom of base plate body.

In the above-mentioned tramcar rail fastener, a flat washer is disposed between the top of the screw spike and the elastic strip.

In the above tram rail fastener, the elastic strip is a B-shaped elastic strip.

In foretell trolley-bus rail fastener, the seal groove has been seted up to buried sheathed tube's upper surface, be provided with the sealing washer in the seal groove, the inner circle of sealing washer is the inclined plane, the spiral spike passes the sealing washer, and the outside of this spiral spike have with the inclined plane that the inner circle of sealing washer pastes mutually and leans on. After the sealing ring is designed, the spiral spike can be matched with the inner ring of the sealing ring through the inclined surface to extrude the sealing ring to be tightly attached to the sealing groove to form sealing, so that rainwater is prevented from entering the embedded sleeve to cause corrosion; because the spiral spike is stressed, if the sealing groove is designed on the spiral spike, the strength of the spiral spike is reduced, and the spiral spike is easy to break, so that the sealing groove is designed on the embedded sleeve, and the service life of the whole body can be prolonged.

Compared with the prior art, the utility model has the advantages of it is following:

because the lateral wall of base plate subassembly contacts with the lateral wall of mounting groove, consequently, can share the partial external force that the spiral spike receives to alleviate the external force that the spiral spike received, reduce its cracked probability, thereby improve this rail fastener's life.

Drawings

Fig. 1 is a schematic structural view of the present rail clip.

Fig. 2 is a partial structural schematic view of the present rail clip.

In the figure, 1, a spring bar; 2. a screw spike; 3. pre-burying a sleeve; 4. a sleeper; 5. mounting grooves; 6. a flat washer; 7. tramway rails; 8. a substrate body; 9. a base plate is lowered and raised; 10. a groove; 11. a rail lower backing plate; 12. insulating the gauge block; 13. a rail lower elevation base plate; 14. and (5) sealing rings.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the steel rail fastener comprises a base plate assembly, an elastic strip 1, a spiral spike 2 and a pre-buried sleeve 3, wherein a sleeper 4 is provided with a mounting groove 5, the bottom surface of the mounting groove 5 is provided with a mounting hole, and the pre-buried sleeve 3 is inserted into the mounting hole; the base plate subassembly sets up in mounting groove 5, and the lateral wall of this base plate subassembly contacts with the lateral wall of mounting groove 5, and spiral spike 2 passes bullet strip 1 and base plate subassembly in proper order and pegs graft in buried sleeve 3 in advance, and bullet strip 1 can withhold trolley-bus rail 7, and in this embodiment, bullet strip 1 is preferably B type bullet strip, is provided with flat washer 6 between the top of spiral spike 2 and bullet strip 1.

As shown in the left half of fig. 1, the substrate assembly includes a substrate body 8, a bottom surface of the substrate body 8 is in contact with a bottom surface of the mounting groove 5, and a side wall of the substrate body 8 is in contact with a side wall of the mounting groove 5.

As shown in the right half of fig. 1, the base plate assembly may alternatively include a base plate body 8 and a base plate lower elevation pad 9, a lower surface of the base plate lower elevation pad 9 being in contact with a bottom surface of the mounting groove 5, a side wall of the base plate lower elevation pad 9 being in contact with a side wall of the mounting groove 5, and a lower surface of the base plate body 8 being in contact with an upper surface of the base plate lower elevation pad 9.

As shown in fig. 2, a sealing groove is formed in the upper surface of the embedded casing 3, a sealing ring 14 is disposed in the sealing groove, an inner ring of the sealing ring 14 is an inclined surface, the spiral spike 2 penetrates through the sealing ring 14, and the outer side of the spiral spike 2 is provided with an inclined surface attached to the inner ring of the sealing ring 14.

Specifically, in this embodiment, the upper surface of the base plate body 8 is provided with a groove 10, the rail fastener further includes a rail lower pad 11 and an insulating gauge block 12, the rail lower pad 11 is disposed in the groove 10, the insulating gauge block 12 is disposed on the edge of the rail lower pad 11 and respectively abuts against the rail lower pad 11 and the trolley rail 7, one end of the elastic strip 1 abuts against the base plate body 8, and the other end of the elastic strip 1 abuts against the insulating gauge block 12. The elastic strip 1 is respectively abutted against the rail lower backing plate 11 and the trolley bus rail 7, and when the spiral spike 2 is screwed, the trolley bus rail 7 can be buckled through the elastic strip 1, so that the trolley bus rail 7 is fixed.

Preferably, the rail fastener further comprises a rail lower height adjustment base plate 13, and the rail lower height adjustment base plate 13 is arranged between the rail lower base plate 11 and the groove bottom of the groove 10 of the base plate body 8.

It should be noted that the side wall of the installation groove 5 in this embodiment is preferably an inclined surface, and the side wall of the substrate body 8 or the substrate lower heightening shim plate 9 is preferably an inclined surface contacting with the side wall of the installation groove 5; however, the shape is not limited to the above shape, and the shape of the side wall may be changed without departing from the scope of the present invention.

The working principle of the utility model is as follows: during the installation, install buried sleeve 3 on sleeper 4 earlier, then place the base plate subassembly in sleeper 4's mounting groove 5, make sleeper 4's lateral wall and mounting groove 5's lateral wall contact, then pass bullet strip 1 and base plate subassembly with spiral spike 2 in proper order, peg graft in buried sleeve 3 at last, bullet strip 1 supports respectively on rail backing plate 11 and trolley-bus rail 7, when the spiral spike 2 of screwing, can withhold trolley-bus rail 7 through bullet strip 1, realize trolley-bus rail 7's fixed.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The tramcar steel rail fastener is characterized by comprising a base plate assembly, an elastic strip (1), a spiral spike (2) and a pre-buried sleeve (3), wherein a mounting groove (5) is formed in a sleeper (4), a mounting hole is formed in the bottom surface of the mounting groove (5), and the pre-buried sleeve (3) is inserted into the mounting hole; the base plate assembly is arranged in the mounting groove (5), the side wall of the base plate assembly is in contact with the side wall of the mounting groove (5), the spiral spike (2) sequentially penetrates through the elastic strip (1) and the base plate assembly to be inserted into the embedded sleeve (3), and the elastic strip (1) can be buckled and pressed on the trolley rail (7).

2. The tram rail clip according to claim 1, wherein the base plate assembly comprises a base plate body (8), wherein the bottom surface of the base plate body (8) is in contact with the bottom surface of the mounting groove (5), and wherein the side wall of the base plate body (8) is in contact with the side wall of the mounting groove (5).

3. The trolley rail clip as set forth in claim 1, wherein the base plate assembly includes a base plate body (8) and a base plate lower heightening pad (9), a lower surface of the base plate lower heightening pad (9) is in contact with a bottom surface of the mounting groove (5), a side wall of the base plate lower heightening pad (9) is in contact with a side wall of the mounting groove (5), and a lower surface of the base plate body (8) is in contact with an upper surface of the base plate lower heightening pad (9).

4. The tram rail fastener according to claim 2 or 3, characterized in that the upper surface of the base plate body (8) is provided with a groove (10), the rail fastener further comprises a rail lower pad (11) and an insulating track gauge block (12), the rail lower pad (11) is disposed in the groove (10), the insulating track gauge block (12) is disposed at the edge of the rail lower pad (11) and respectively abutted against the rail lower pad (11) and the tram rail (7), one end of the elastic strip (1) is abutted against the base plate body (8), and the other end of the elastic strip (1) is abutted against the insulating track gauge block (12).

5. A tram rail fastener according to claim 4, characterized in that it further comprises a rail lower elevation pad (13), said rail lower elevation pad (13) being arranged between said rail lower pad (11) and the bottom of the groove (10) of the base plate body (8).

6. Tramway rail clip according to claim 1, 2 or 3, characterized in that a flat washer (6) is arranged between the top of the screw spike (2) and the spring bar (1).

7. Tramway rail clip according to claim 1, 2 or 3, characterized in that the spring strip (1) is a B-shaped spring strip (1).

8. The tramcar rail fastener according to claim 2 or 3, wherein the upper surface of the embedded sleeve (3) is provided with a sealing groove, a sealing ring (14) is arranged in the sealing groove, the inner ring of the sealing ring (14) is an inclined surface, the spiral spike (2) passes through the sealing ring (14), and the outer side of the spiral spike (2) is provided with an inclined surface which is attached to the inner ring of the sealing ring (14).