Turnout switch rail protection tool used in construction process

Abstract

The utility model discloses a turnout switch rail protection tool used in the construction process, and belongs to the technical field of turnout switch rail protection equipment, the specific structure comprises a protection cover and a fixing device, the fixing device is fixedly connected with two turnout switch rails and is fixed with stock rails, the turnout switch rail on one side is tightly abutted against the stock rail on the same side, and the turnout switch rail on the other side is tightly abutted against the stock rail on the other side. A distance is kept between the turnout switch rail on the other side and the stock rail on the side, the end of the turnout switch rail on the side is sleeved with a protective cover, and the top face of the protective cover is not higher than the rail face of the stock rail. The protective cover is matched with the fixing device, the two switch rails are fixed, the switch rail on the side needing to be used is attached to the stock rail through the fixing device, stable protection can be achieved on the point portion of the turnout switch rail in the construction process, damage caused by improper construction is avoided, the switch rail can be conveniently used for construction after being moved, and construction efficiency is improved. Deformation is further reduced, the overall stability of the frame of the turnout switch rail is improved, normal use of the switch rail is ensured, the replacement frequency is reduced, and rail bending is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of turnout point rail protection equipment relates to a kind of turnout point rail protection tool for construction process. BACKGROUND

[0002] With the development of society, rail transit engineering has become an indispensable part of the city. Turnout is the key railway equipment for locomotive vehicles to realize turning or crossing line, which has complex structure and numerous components. During construction, due to the lack of protection devices compared with after putting into use, the turnout point rail may be damaged due to the influence of multi-specialty construction in this stage, which increases the replacement and maintenance cost in the later acceptance process. According to the past subway construction experience, the weak area of the point rail top surface below 10mm and the length of 200mm range is easy to be impacted during construction, which is prone to deformation and damage after being impacted by external force.

[0003] However, the existing technology for storage and pre-use protection has Chinese patent application (publication number: CN205152733U), which discloses a turnout point rail protection cover. The specific structure includes a cover body and two matching plates. The cover body is a rectangular pulse structure, and the two matching plates are arranged at the bottom of both ends of the cover body and connected to the wing plates I and II on both sides of the cover body through bolts. The cover body is a rectangular pulse structure, which is designed according to the structure of turnout rail. When installed, it can tightly wrap the rail in the cover body to prevent sharp objects from damaging the point rail. The cover body and the matching plate are connected movably and can be reused. However, when the protection cover is used during construction, the two point rails are not fixed, and the point rail may be damaged due to the impact of locomotive running and construction. The Chinese patent application uses the protection scheme, which is not convenient to install because of the connection structure at the bottom of the point rail. Moreover, only using the protection cover may cause the following problems: when the turnout is turned, the two point rails are not connected as a whole because the switch machine has not been installed, which may cause the point rail on the non-working side to fail to effectively achieve the normal displacement amount. Long-term use may cause deformation of the turnout point rail, poor overall stability of the frame of the turnout point rail, and normal use. The point rail needs to be bent or replaced. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the embodiments of the present application is to provide a turnout point rail protection tool for construction process, which can stably protect the point part of the turnout point rail during construction process, avoid damage caused by improper construction, and facilitate the use of point rail movement after construction. Further reduce deformation and improve the overall stability of the frame of the turnout point rail to ensure the normal use of the point rail and reduce the replacement frequency and avoid bending

[0005] The technical scheme adopted by the embodiment of the application is as follows: a turnout frog protection tool used in a construction process, comprising a protection cover and a fixing device, the fixing device is fixedly connected with two turnout frogs and keeps fixed with a basic rail, wherein, one side of the turnout frog is tightly abutted against the same side of the basic rail, the other side of the turnout frog keeps a distance from the basic rail on the same side, the end of the turnout frog on the same side is sleeved with the protection cover, and the top surface of the protection cover is not higher than the rail surface of the basic rail.

[0006] Further, the embodiment of the application discloses that the protection cover and the fixing device are connected through a flexible connecting device.

[0007] Further, the embodiment of the application discloses that the flexible connecting device adopts a chain or a flexible rope.

[0008] Further, the embodiment of the application discloses that the protection cover is a steel pipe, the bottom of the steel pipe is provided with a U-shaped notch, the length of the U-shaped notch is greater than 200 mm, the width of the U-shaped notch is 10 mm, the diameter of the steel pipe is 40 mm, and the U-shaped notch is horizontally clamped behind the turnout frog to ensure that the inner side of the steel pipe keeps a gap from the top of the turnout frog.

[0009] Further, the embodiment of the application discloses that the length of the U-shaped notch is 270 mm, and the protection cover is 300 mm.

[0010] Further, the embodiment of the application discloses that the fixing device comprises a support rod, a connecting plate and a wedge, the two ends of the support rod are respectively fixedly connected with two connecting plates, the two connecting plates are respectively fixedly connected with the two turnout frogs, one turnout frog is tightly abutted against the inner side of the basic rail on one side, and the other turnout frog is clamped by the wedge between the basic rail on the other side.

[0011] Further, the embodiment of the application discloses that the thickness of the connecting plate is 15 mm, the length of the connecting plate is 160 mm, two symmetrical fixed mounting holes are arranged on the center line in the length direction of the connecting plate, the two fixed mounting holes are opposite to two rod mounting holes at the end of the turnout frog, and the connecting plate is fixedly connected with the turnout frog through the two fixed mounting holes and the two rod mounting holes after the two fixed mounting holes and the two rod mounting holes are penetrated by bolts.

[0012] Further, the embodiment of the application discloses that the protection cover and the fixing device are provided with reflective strips.

[0013] The beneficial effects of this application's embodiments are as follows: Compared with the prior art, this application's embodiments, through the use of a protective cover and a fixing device, fix the two switch rails and attach the switch rail on the side to be used to the main rail via the fixing device. This provides stable protection for the tip of the switch rail during construction, preventing damage caused by improper construction. It also facilitates the movement of the switch rail for construction use, further reducing deformation and improving the overall stability of the switch rail frame, ensuring the normal use of the switch rail, reducing the frequency of replacement, and avoiding rail bending. This tooling provides better protection when used for a large number of turnout tracks during construction. Compared with using hook locks for fixing, it is cheaper (hook locks cost 400 yuan / set (including labor processing costs), while this utility model's tooling costs 230 yuan / set (including labor processing costs)) and is simple to operate. Attached Figure Description

[0014] Fig. 1 This is a schematic diagram of the installation structure of a turnout switch rail protection tool used during construction.

[0015] Fig. 2 This is an enlarged structural diagram of the installation location of the turnout switch rail protection tool used during construction.

[0016] Fig. 3 This is a schematic diagram of the connection structure between the strut and the protective cover;

[0017] Fig. 4 This is a schematic diagram of the structure at the connection point of the protective cover;

[0018] Fig. 5 This is a schematic diagram of the structure from the left after the strut and connecting plate are connected;

[0019] Fig. 6 This is a schematic diagram of the right-side structure of the protective cover. Detailed Implementation

[0020] The utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1: As Figs. 1-6 As shown, a switch point rail protection fixture for use during construction includes a protective cover 1 and a fixing device 2. The fixing device 2 fixes two switch point rails 3 and keeps them fixed to the main rail 4. One switch point rail 3 is pressed against the main rail 4 on the same side, while the switch point rail 3 on the other side is spaced apart from the main rail 4 on the same side. The protective cover 1 is sleeved on the end of the switch point rail 3 on the other side. The top surface of the protective cover 1 is not higher than the rail surface of the main rail 4. The protective cover can fit the switch rail and its height does not exceed the rail surface of the main rail, thus providing protection without affecting the passage of construction equipment. It is simple to operate and achieves the target of the countermeasure.

[0022] In order to avoid the protective cover from falling during storage, the protective cover 1 is connected with the fixing device 2 through the flexible connecting device 5. After being connected through the flexible connecting device, the protective cover and the fixing device can be connected as a whole, so as to avoid loss during storage. If the protective cover is knocked off during construction, it will not run too far under the pulling of the flexible connecting device, so as to facilitate the recovery and reinstallation. The specific structure of the flexible connecting device 5 adopts a chain or a flexible rope. The length of the chain or the flexible rope is the distance from the middle of the steel pipe to the end of the protective cover away from the fixing device + a reserved length of 100 mm. When the chain is adopted, a non-dropping hook is arranged on the support rod of the protective cover and the fixing device. When the flexible rope is adopted, one end of the flexible rope is directly connected to the middle of the fixing device, and the other end is bolted to the through hole arranged at the end of the protective cover.

[0023] In order to facilitate processing, the protective cover 1 is a steel pipe. A U-shaped notch 101 is arranged at the bottom of the steel pipe. The length of the U-shaped notch 101 is greater than 200 mm, and the width is 10 mm. The diameter of the steel pipe is 40 mm. The U-shaped notch 101 is horizontally clamped behind the switch rail 3 to ensure that the inner side of the top of the steel pipe and the top of the switch rail 3 maintain a gap. The bottom of the U-shaped notch 101 abuts against the end face of the switch rail. The protective cover with the steel pipe structure is convenient to manufacture and easy to install. The size of the steel pipe structure and the arrangement of the U-shaped notch can cover the weak link of the top of the switch rail within a range of 10 mm downward, improve the protection reliability, and play a certain elastic buffering role. In combination with the existence of the gap, the switch rail can be effectively protected from being damaged by impact.

[0024] In order to meet the requirements of the weak link (200 mm length range) of the switch rail, the length of the U-shaped notch 101 is 270 mm, and the length of the protective cover 1 is 300 mm, so as to cover the weak link of the switch rail and improve the protection reliability.

[0025] In order to facilitate the fixation and connection of two switch rails, the fixing device 2 comprises a support rod 201, a connecting plate 202 and a wedge 203. The two ends of the support rod 201 are respectively fixedly connected with two connecting plates 202. The two connecting plates 202 are respectively fixedly connected with two switch rails 3. One switch rail 3 is tightly attached to the inner side of the basic rail 4 on one side. The other switch rail 3 is clamped with the basic rail 4 on the other side by using the wedge 203. When in use, the other side is clamped with the basic rail by using the wedge when the one side needs to be attached. When the switch rail on the other side needs to be replaced, the wedge is loosened, the support rod and the switch rail are moved as a whole, the switch rail on the other side is attached to the basic rail on the side, and the wedge is tightly fastened between the switch rail and the basic rail on the other side to fix the switch rail and the basic rail. Through the support rod, the connecting plate and the wedge, the two switch rails can be stably and reliably fixed and connected to the basic rail. The connection is convenient, the transposition is convenient, and the installation and disassembly are easy. The support rod 201 adopts a steel pipe with a diameter of 40 mm, which is light in weight and stable in support, and is convenient for welding with the connecting plate.

[0026] In order to meet the support stability requirement and match the existing pull rod mounting hole, the connecting plate 202 is 15mm thick and 160mm long, two symmetrical fixed mounting holes 204 are arranged on the center line of the length direction of the connecting plate 202, the two fixed mounting holes 204 are opposite to two pull rod mounting holes 205 at the end of the switch rail 3, and the connecting plate 202 is fixedly connected with the switch rail 3 through the bolts 206 passing through the two fixed mounting holes 204 and the two pull rod mounting holes 205. By adopting the connecting plate with the size and the corresponding fixed mounting hole and the bolt fixed connection, the stable connection of the connecting plate can be realized, the overall stability of the switch rail is improved, the existing pull rod mounting hole is utilized, the structure of the switch rail is not damaged, and the safety and reliability of the switch rail in the later use are improved.

[0027] In order to play a warning role, the protective cover and the fixing device are provided with reflective strips, that is, the surface of the protective cover, the surface of the supporting rod and the surface of the wedge are provided with reflective strips. The reflective strips are easy to be noticed by workers in a dim environment of an underground rail area, are more safe and have strong practicability.

[0028] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A tooling for protecting turnout switch rails during construction, characterized in that: It includes a protective cover (1) and a fixing device (2). The fixing device (2) fixes two turnout switch rails (3) and keeps them fixed to the main rail (4). One turnout switch rail (3) is pressed against the main rail (4) on the same side, and the other turnout switch rail (3) is spaced apart from the main rail (4) on that side. The end of the turnout switch rail (3) on that side is fitted with the protective cover (1). The top surface of the protective cover (1) is not higher than the rail surface of the main rail (4).

2. The switch point rail protection fixture for use during construction as described in claim 1, characterized in that: The protective cover (1) is connected to the fixing device (2) by a flexible connecting device (5).

3. The switch point rail protection fixture for use during construction as described in claim 2, characterized in that: The flexible connection device (5) uses a chain or flexible rope.

4. The switch point rail protection fixture for use during construction as described in claim 1, characterized in that: The protective cover (1) is a steel pipe with a U-shaped notch (101) at the bottom. The U-shaped notch (101) is longer than 200mm and wider than 10mm. The diameter of the steel pipe is 40mm. The U-shaped notch (101) is horizontally locked onto the turnout switch rail (3) to ensure that the top of the inner side of the steel pipe maintains a gap with the top of the turnout switch rail (3).

5. A switch point rail protection fixture for use during construction as described in claim 1, characterized in that: The length of the U-shaped notch (101) is 270mm, and the length of the protective cover (1) is 300mm.

6. The switch point rail protection fixture for use during construction as described in claim 1, characterized in that: The fixing device (2) includes a strut (201), a connecting plate (202) and a wedge (203). The two ends of the strut (201) are fixedly connected to two connecting plates (202). The two connecting plates (202) are fixedly connected to two turnout switch rails (3). One turnout switch rail (3) is close to the inner side of the main rail (4) on one side, and the other turnout switch rail (3) is clamped to the other side of the main rail (4) by a wedge (203).

7. A switch point rail protection fixture for use during construction as described in claim 6, characterized in that: The connecting plate (202) is 15mm thick and 160mm long. Two symmetrical mounting holes (204) are provided on the center line of the length direction of the connecting plate (202). The two mounting holes (204) are directly opposite to the two tie rod mounting holes (205) at the end of the turnout switch rail (3). The connecting plate (202) is fixedly connected to the turnout switch rail (3) after passing through the two mounting holes (204) and the two tie rod mounting holes (205) with bolts (206).

8. A switch point rail protection fixture for use during construction as described in claim 6, characterized in that: Reflective strips are provided on the protective cover (1) and the fixing device (2).

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