CN220785781U

CN220785781U - Railway switch external locking device

Info

Publication number: CN220785781U
Application number: CN202322263920.XU
Authority: CN
Inventors: 王小毅; 张树东
Original assignee: Tianjin Railway Signal Co Ltd
Current assignee: Tianjin Railway Signal Co Ltd
Priority date: 2023-08-22
Filing date: 2023-08-22
Publication date: 2024-04-16
Anticipated expiration: 2033-08-22

Abstract

The utility model discloses an external locking device for railway turnouts, which belongs to the technical field of railway transportation, wherein two groups of locking assemblies with the same structure are respectively arranged on the inner sides of two switch rails, each locking assembly comprises a fixed seat arranged on a switch sleeper below the close positions of a stock rail and the switch rails, a clamping part which is clamped with the outer side of the stock rail is arranged on the fixed seat close to the outer end face of the stock rail, a supporting frame is arranged on the fixed seat far away from the clamping part, a first locking link plate is hinged in the supporting frame, locking roller groups are arranged at the end parts of the first locking link plate, locking frames are respectively arranged on two side walls of a locking rod positioned in the supporting frame, guide grooves are arranged on the locking frames, and two ends of each locking roller group are arranged in the guide grooves and can move along the guide grooves. According to the utility model, no holes are needed to be drilled on the stock rail, so that the rigidity of the stock rail is improved, and the safety and reliability of the running rail are ensured.

Description

Railway switch external locking device

Technical Field

The utility model belongs to the technical field of railway transportation, and particularly relates to an external locking device for railway turnouts.

Background

Railway switches are important core safety devices for controlling the direction of travel of a train. The turnout mainly comprises two fixed and immovable stock rails, two movable switch rails, a switch machine, a locking device and the like. When the train is in operation and the direction needs to be changed, the switch machine pushes the switch rail to act, so that the switch rail is closely attached to one of the stock rails and separated from the other stock rail, and the train wheel pair is controlled to walk along the opening direction of the stock rail closely attached to the switch rail, thereby changing the walking direction of the train.

The existing external locking device drives the locking hook component to move through the locking rod to lock the stock rail and the switch rail, and the scheme needs to drill holes on the stock rail to realize structural assembly, so that the overall rigidity of the stock rail is weakened, and the stock rail is easily damaged by strong vibration and impact generated by a train, so that the safety and reliability of the running rail are affected.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model provides the railway turnout external locking device which does not need to drill holes on a stock rail, improves the rigidity of the stock rail and ensures the safety and reliability of an operation rail.

The utility model discloses an external locking device for a railway turnout, which comprises two stock rails symmetrically arranged on a turnout sleeper and two switch rails respectively arranged on the inner sides of the two stock rails, wherein a switch machine is arranged on the turnout sleeper on one side of the stock rails, a locking rod connected and installed by the switch machine extends to the positions below the stock rails and the switch rails far away from one side of the switch machine along the horizontal direction of the turnout sleeper, two groups of locking components with the same structure are respectively arranged on the inner sides of the two switch rails relatively, each locking component comprises a fixed seat arranged on the turnout sleeper below the close positions of the stock rails and the switch rails, a clamping part clamped with the outer sides of the stock rails is arranged on the fixed seat close to the outer side end surfaces of the stock rails, a supporting frame is arranged on the fixed seat far away from the clamping part, a first linkage plate is hinged in the supporting frame, locking frames are respectively arranged on two side walls of the locking rod in the supporting frame, guide grooves are arranged on the frames, two ends of the locking linkage plate are arranged on the guide grooves, two guide rail groups can be hinged, and two movable switch rail guide assemblies are connected on the two side face of the guide rail assemblies in a hinged mode.

Furthermore, the switch sleeper is of an integral structure, and the switch sleeper is provided with a guide wheel, a switch machine installation position and a stock rail installation position for supporting a locking rod. Specifically, be provided with the mounting groove in the switch sleeper that is located the locking pole below, rotate through the pivot in the mounting groove and be provided with the leading wheel, the leading wheel supports the locking pole and can rotate along with the removal of locking pole, becomes sliding friction rolling friction for the locking pole removes more smoothly steadily, and has shared the holding power that is used in the switch rail, improves the life of switch rail.

Further, the guide groove comprises a horizontal section arranged at the upper end part of the locking frame, and a vertical section intersected with the horizontal section is arranged on the locking frame close to one side of the adjacent switch rail. Through the horizontal section and the vertical section that intersect set up, when the switch rail is in place, the locking gyro wheel at both ends is placed in horizontal section and vertical section respectively, realizes the locking function, and reliable locks stock rail and switch rail.

Further, a through groove for the locking rod to penetrate is formed in the fixing base.

Further, a fixed pressing block clamped with the inner side of the stock rail is arranged on the fixed seat close to the inner side end face of the stock rail, so that the fixed seat and the stock rail are firmly installed.

Further, the locking rod comprises two locking rod pieces, and an insulating plate is arranged at the connecting end of the two locking rod pieces, so that the two locking rod pieces are relatively insulated, and the track circuit is ensured to be normal and effective.

The utility model has the advantages and technical effects that: by adopting the technical scheme, drilling holes on the stock rail are not needed, so that the rigidity of the stock rail is improved, and the safety and reliability of the running rail are ensured; this application drives the locking frame through the locking pole, makes locking roller set produce the displacement, and then pulls the switch rail through locking yoke plate and switch rail coupling assembling and remove to realize the locking of switch rail and stock rail, avoided drilling on the stock rail, overall structure is light, simple installation.

Drawings

FIG. 1 is a schematic view of the overall structure provided by an embodiment of the present utility model;

FIG. 2 is a schematic view of a locking assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a locking frame according to an embodiment of the present utility model;

fig. 4 is a schematic diagram of a switch tie structure according to an embodiment of the present utility model.

In the figure: 1. switch tie; 101. a guide wheel; 102. the switch machine installation position; 103. a stock rail mounting location; 2. a stock rail; 3. a point rail; 4. a switch machine; 401. a locking bar; 5. a locking assembly; 501. a fixing seat; 502. an engagement portion; 503. a support frame; 504. a first locking yoke plate; 505. locking the roller group; 506. a locking frame; 507. a guide groove; 508. a second locking linkage; 509. a through groove; 510. fixing the pressing block; 511. a horizontal section; 512. a vertical section; 6. and a point rail connection assembly.

Detailed Description

The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 4, the present application provides an external locking device for railway turnout, comprising two stock rails 2 symmetrically arranged on a switch sleeper 1 and two switch rails 3 respectively arranged on the inner sides of the two stock rails 2, wherein a switch machine 4 is arranged on the switch sleeper 1 positioned on one side of the stock rails 2, and a locking rod 401 connected and installed by the switch machine 4 extends to the lower part of the stock rails 2 and the switch rails 3 on one side far away from the switch machine 4 along the horizontal direction of the switch sleeper 1.

Two sets of locking assemblies 5 with the same structure are oppositely arranged on the inner sides of the two switch rails 3 respectively, the locking assemblies 5 comprise a fixed seat 501 arranged on the switch tie 1 below the close-contact positions of the stock rail 2 and the switch rails 3, and a through groove 509 for the penetration of the locking rod 401 is arranged on the fixed seat 501. The fixing base 501 near the inner end face of the stock rail 2 is provided with a fixing pressing block 510 engaged with the inner side of the stock rail 2, so that the fixing base 501 and the stock rail 2 are firmly installed. The fixing base 501 near the outer end surface of the stock rail 2 is provided with a locking portion 502 that is locked with the outer side of the stock rail 2, and the specific locking portion 502 is a locking hook structure. The fixing seat 501 far away from the clamping portion 502 is provided with a supporting frame 503, a first locking yoke plate 504 is hinged in the supporting frame 503, specifically, a connecting pin is arranged in the supporting frame 503, the first locking yoke plate 504 is hinged on the connecting pin, and a locking roller group 505 is arranged at the end part of the first locking yoke plate 504. The non-working surface of the switch rail 3 is provided with a switch rail connecting assembly 6, the inner side of the switch rail connecting assembly 6 is hinged with a second locking linkage plate 508, in particular, the inner side wall of the switch rail connecting assembly 6 is provided with a pin shaft, the second locking linkage plate 508 is hinged on the pin shaft, and the end part of the second locking linkage plate 508 is hinged on the locking roller group 505. The locking bar 401 both sides wall that is located in the braced frame 503 is provided with locking frame 506 respectively, be provided with guide way 507 on the locking frame 506, locking roller group 505's both ends set up in guide way 507 and can follow guide way 507 and remove, specifically, guide way 507 is including arranging in the horizontal section 511 of the upper end of locking frame 506, and horizontal section 511 is on a parallel with the direction of movement of locking bar 401, is provided with the perpendicular section 512 that intersects with horizontal section 511 on the locking frame 506 that is close to adjacent switch rail 3 one side, and the central line of perpendicular section 512 sets up perpendicularly with the central line of horizontal section 511. By means of the horizontal segment 511 and the vertical segment 512 which are arranged in an intersecting manner, when the switch rail 3 is switched into place, the locking roller groups 505 at the two ends are respectively arranged in the horizontal segment 511 and the vertical segment 512, so that a locking function is realized, and the base rail 2 and the switch rail 3 are reliably locked.

The switch tie 1 is of an integral structure, the switch tie of the integral structure can be made of concrete casting or integrally formed by adopting a steel structure, and the switch tie 1 is provided with a guide wheel 101 for supporting a locking rod 401, a switch machine installation position 102 and a stock rail installation position (103). Specifically, a mounting groove is formed in the switch tie 1 below the locking bar 401, a guide wheel 101 is rotatably arranged in the mounting groove through a rotating shaft, the guide wheel 101 supports the locking bar 401 and can rotate along with the movement of the locking bar 401, sliding friction is changed into rolling friction, the locking bar 401 moves more smoothly and stably, supporting force acting on the switch rail 3 is shared, and the service life of the switch rail 3 is prolonged. The locking rod 401 comprises two locking rod pieces, and the connecting ends of the two locking rod pieces are provided with insulating plates, so that the two locking rod pieces are relatively insulated, and the track circuit is ensured to be normal and effective.

When the switch rail 3 near the switch machine 4 is closely attached to the stock rail 2, the locking roller set 505 of the locking assembly 5 near the switch machine 4 is located at the end of the horizontal segment 511 in the guide groove 507, and the locking roller set 505 of the locking assembly 5 far from the switch machine 4 is located at the end of the vertical segment 512 in the guide groove 507, which is in the locked state. When switching is needed, the switch machine 4 pushes the locking rod 401 to move away from the switch machine 4, along with the movement of the locking rod 401, the locking frame 506 in the locking assembly 5 at the side close to the switch machine 4 moves away from the switch machine 4, the locking roller group 505 enters the vertical section 512 along the horizontal section 511 under the action of the first locking link plate 504, and the switch rail connecting assembly 6 is pulled by the second locking link plate 508, so that the switch rail 3 at the side close to the switch machine 4 is separated from the stock rail 2; the locking frame 506 of the locking assembly 5 on the side far from the switch machine 4 moves away from the switch machine 4, the locking roller set 505 enters the horizontal section 511 along the vertical section 512 under the action of the first locking yoke plate 504, and the point connecting assembly 6 is pushed by the second locking yoke plate 508, so that the point 3 on the side near the switch machine 4 is closely attached to the stock rail 2 until locking.

By adopting the technical scheme, holes are not required to be drilled on the stock rail 2, so that the rigidity of the stock rail 2 is improved, and the safety and reliability of the running rail are ensured; the application drives the locking frame 506 through the locking rod 401, so that the locking roller group 505 generates displacement, and then the switch rail 3 is pulled to move through the locking yoke plate and the switch rail connecting assembly 6, and the locking of the switch rail 3 and the switch rail 2 is realized, so that the drilling on the switch rail 2 is avoided, and the whole structure is light and convenient to install.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. An external locking device for railway turnout comprises two stock rails (2) symmetrically arranged on a turnout sleeper (1) and two switch rails (3) respectively arranged on the inner sides of the two stock rails (2), wherein a switch machine (4) is arranged on the turnout sleeper (1) positioned on one side of the stock rails (2), a locking rod (401) connected and installed by the switch machine (4) extends to the lower part of the stock rails (2) and the switch rails (3) far away from one side of the switch machine (4) along the horizontal direction of the switch sleeper (1), the external locking device is characterized in that two groups of locking assemblies (5) with the same structure are respectively arranged on the inner sides of the two switch rails (3) oppositely, the locking assemblies (5) comprise fixing seats (501) arranged on the turnout sleeper (1) below the close positions of the stock rails (2) and the switch rails (3), a clamping part (502) clamped with the outer side of the stock rails (2) is arranged on the fixing seats (501) close to the outer side face of the stock rails (2), a supporting frame (506) far away from the clamping part (502) is arranged on the supporting frame (502), a locking plate (503) is arranged on the supporting frame (503), a locking plate (503) is arranged on the inner side of the supporting frame (503), a locking plate (503) is arranged on the supporting frame (503), be provided with guide way (507) on locking frame (506), the both ends setting of locking roller train (505) are in guide way (507) and can follow guide way (507) and remove, be provided with switch rail coupling assembling (6) on the non-working face of switch rail (3), the inboard of switch rail coupling assembling (6) articulates there is second locking linkage (508), the tip of second locking linkage (508) articulates on locking roller train (505).

2. The railway switch external locking device according to claim 1, characterized in that the switch sleeper (1) is of an integral structure, and the switch sleeper (1) is provided with a guide wheel (101) for supporting a locking rod (401), a switch machine mounting position (102) and a stock rail mounting position (103).

3. The railway switch out-locking device according to claim 1, characterized in that the guide groove (507) comprises a horizontal section (511) placed at the upper end of the locking frame (506), and that the locking frame (506) on the side close to the adjacent switch rail (3) is provided with a vertical section (512) intersecting the horizontal section (511).

4. The railway switch out-locking device according to claim 1, characterized in that the fixing base (501) is provided with a through slot (509) for the penetration of the locking bar (401).

5. The railway switch outer locking device according to claim 1, wherein a fixed pressing block (510) which is clamped with the inner side of the stock rail (2) is arranged on the fixed seat (501) which is close to the inner side end surface of the stock rail (2).

6. The railway switch out-locking device according to claim 1, characterized in that the locking bar (401) comprises two locking bars, the connecting ends of which are provided with insulating plates.