Protective device of turnout switch

Abstract

The utility model relates to the field of rail accessories, in particular to a protection device of a turnout switch, which is characterized by comprising a covering steel plate and a fixing steel plate, a horizontal steel plate is arranged in the middle of the covering steel plate, vertical steel plates are arranged at the left end and the right end of the covering steel plate, and the horizontal steel plate and the two vertical steel plates jointly define a protection inner cavity. The horizontal steel plate can be hinged to the fixed steel plate in an upward overturning and opening mode, a receding notch is formed in the middle of the bottom edge of the fixed steel plate, and at least one elastic downward pressing piece is arranged at the hinged position of the horizontal steel plate and the fixed steel plate. The elastic pressing piece can elastically press the horizontal steel plate downwards so that the rear ends of the horizontal steel plate and the two vertical steel plates can be tightly pressed at the front end of the fixed steel plate. According to the utility model, the interference of external interference factors such as stones, freezing rain, accumulated snow or hail on the movement of the draw bar shaft below the stock rail can be greatly reduced, the rail replacement can be kept at high speed and accuracy for a long time, the inspection and maintenance are convenient, and the potential safety hazard can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of railway track fittings, in particular to a protection device for a switch point of a turnout. Background Art

[0002] At present, most switch points of turnouts are driven by a traction rod shaft to drive the tip of the switch rail to swing and fit against the stock rail to achieve rail conversion. Among them, at present, the driving system of the switch point of the turnout is mostly arranged outside the stock rail, and the traction rod shaft passes through the lower part of the stock rail and is connected to the engaging tip. In order to ensure the stability of the installation and positioning of the stock rail, the space for the traction rod shaft to pass through under the stock rail is generally small. Therefore, the gaps between the traction rod shaft and the stock rail, and between the traction rod shaft and the ground are relatively small. Once larger stones, freezing rain, snow or hail and other external interference factors fall into such gaps, it is easy to affect the movement of the traction rod shaft. Especially when the traction rod shaft under the stock rail is connected by a hinge and there is a convex shaft at the hinge, the influence of external interference factors on the movement of the traction rod shaft is particularly obvious, thus it is easy to affect the speed and accuracy of rail conversion, which is likely to bring great potential safety hazards.

[0003] Therefore, it is very necessary to design a protection device for a switch point of a turnout to solve the above technical problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the above problems and deficiencies, and provide a protection device for a switch point of a turnout. This protection device can greatly reduce the interference of external interference factors such as stones, freezing rain, snow or hail on the movement of the traction rod shaft under the stock rail. It can not only keep the rail conversion at a high speed and accuracy for a long time, but also facilitate inspection and maintenance, and is beneficial to reducing potential safety hazards.

[0005] The technical solution of the utility model is realized as follows:

[0006] A protection device for a switch point of a turnout, which is characterized by including a covering steel plate and a fixing steel plate. The middle part of the covering steel plate is a horizontal steel plate, and the left and right ends of the covering steel plate are vertical steel plates bent downward. The horizontal steel plate and the two vertical steel plates jointly enclose a protection cavity. The fixing steel plate is vertically arranged. The rear end of the horizontal steel plate is hinged to the upper end of the fixing steel plate so as to be able to flip upward and open, and the rear ends of the horizontal steel plate and the two vertical steel plates are all abutted against the front wall of the fixing steel plate. A through notch leading to the protection cavity is opened in the middle of the bottom edge of the fixing steel plate. At least one elastic pressing member is arranged at the hinge joint of the horizontal steel plate and the fixing steel plate, and the elastic pressing member can elastically press down the horizontal steel plate so that the rear ends of the horizontal steel plate and the two vertical steel plates are tightly pressed against the front end of the fixing steel plate.

[0007] Preferably, the connection between the vertical steel plate and the horizontal steel plate is an inclined steel plate that bends downward.

[0008] Preferably, waist-shaped holes are respectively formed in the left and right ends of the fixed steel plate.

[0009] Preferably, the protection device of the turnout switch further includes a hinged steel shaft. Two first horizontal drums are arranged on the rear end of the horizontal steel plate in a left-right side-by-side manner. Three second horizontal drums are arranged on the upper end of the fixed steel plate in a horizontal side-by-side manner. The middle second horizontal drum is located between the two first horizontal drums. Installation gaps are respectively reserved between the left and right second horizontal drums and the left and right first horizontal drums. The elastic pressing member is a torsion spring. There are two elastic pressing members, and the two elastic pressing members are respectively located in the two installation gaps, and the two ends of the elastic pressing member are respectively elastically pressed against the top surface of the horizontal steel plate and the rear wall of the fixed steel plate. The hinged steel shaft horizontally passes through the two first horizontal drums, the three second horizontal drums, and the two elastic pressing members. Anti-disengagement portions are formed by bending the two ends of the hinged steel shaft.

[0010] Preferably, the first horizontal drum is formed by curling a steel sheet integrated with the horizontal steel plate upward into a horizontally arranged cylinder, and the second horizontal drum is formed by curling a steel sheet integrated with the fixed steel plate backward into a horizontally arranged cylinder.

[0011] Preferably, the hinged steel shaft is a stainless steel shaft, and the elastic pressing member is a stainless steel torsion spring.

[0012] Preferably, a first inclined surface is formed at the lower corner of the vertical steel plate away from the fixed steel plate.

[0013] Preferably, second inclined surfaces are respectively formed at the upper left and right corners of the fixed steel plate.

[0014] Preferably, both the covering steel plate and the fixed steel plate are Q235 steel plates with electro-galvanized surfaces.

[0015] Advantages of the present utility model: (1). On the protection device of the switch of this turnout, a covering steel plate is used to cover and protect the drawbar shaft of the switch. The middle part of the covering steel plate is a horizontal steel plate, and the left and right ends are vertical steel plates bent downward. Such a covering steel plate not only has a simple and easy-to-manufacture structure, but also has high structural strength and durability, so that it can play a very stable and reliable protection role. This protection device can greatly reduce the interference of external interference factors such as stones, freezing rain, snow or hail on the movement of the drawbar shaft under the stock rail. It can not only keep the rail replacement at a high speed and accuracy for a long time, but also facilitate inspection and maintenance, and is beneficial to reducing potential safety hazards. (2). By using a fixed steel plate, not only the structural strength of the installation and fixation part can be enhanced, but also the durability can be improved. (3). By making the rear ends of the horizontal steel plate and the two vertical steel plates abut against the front wall of the fixed steel plate, the purpose of accurately and stably positioning the covering steel plate can be achieved, which is beneficial to enabling the covering steel plate to accurately and stably play the protection effect, and further ensuring that the protection device has very high reliability. (4). By hinging the rear end of the horizontal steel plate to the upper end of the fixed steel plate so that it can be turned upward and opened, at least one elastic pressing member is arranged at the hinge joint between the horizontal steel plate and the fixed steel plate, and the elastic pressing member can elastically press the horizontal steel plate to make the rear ends of the horizontal steel plate and the two vertical steel plates tightly press on the front end of the fixed steel plate. This can not only enable the covering steel plate to stably play the covering effect, but also facilitate the maintenance worker to turn over and open the covering steel plate, which is beneficial to improving the convenience of inspection and maintenance of the switch, and can facilitate the cleaning of sundries accidentally falling into the protection cavity. (5). By opening a relief notch on the middle part of the bottom edge of the fixed steel plate that penetrates into the protection cavity, the relief notch can be used for the drawbar shaft of the switch to pass through. In this way, without making the covering steel plate too large, the drawbar shaft of the switch can also be protected by the protection cavity, which is beneficial to controlling the manufacturing difficulty and manufacturing cost of the protection device. Brief Description of the Drawings

[0016] Figure 1 One of the structural schematic diagrams of the protection device in the present utility model.

[0017] Figure 2 Two of the structural schematic diagrams of the protection device in the present utility model.

[0018] Figure 3 Three of the structural schematic diagrams of the protection device in the present utility model. Detailed Description of the Invention

[0019] Such as Figures 1 to 3As shown in the figure, a protection device for a switch point of a turnout includes a covering steel plate 1 and a fixing steel plate 2. The middle part of the covering steel plate 1 is a horizontal steel plate 11, and the left and right ends of the covering steel plate 1 are vertical steel plates 12 bent downward. The horizontal steel plate 11 and the two vertical steel plates 12 jointly enclose a protection inner cavity 10. The fixing steel plate 2 is vertically arranged. The rear end of the horizontal steel plate 11 is hinged to the upper end of the fixing steel plate 2 so as to be turned upward and opened, and the rear ends of the horizontal steel plate 11 and the two vertical steel plates 12 are both abutted against the front wall of the fixing steel plate 2. A relief notch 21 penetrating into the protection inner cavity 10 is formed in the middle of the bottom edge of the fixing steel plate 2. At least one elastic pressing member 3 is arranged at the hinge joint of the horizontal steel plate 11 and the fixing steel plate 2. The elastic pressing member 3 can elastically press the horizontal steel plate 11 to tightly press the rear ends of the horizontal steel plate 11 and the two vertical steel plates 12 against the front end of the fixing steel plate 2.

[0020] On the protection device of the switch point of the turnout, the covering steel plate 1 is used to cover and protect the drawbar shaft of the switch point. The middle part of the covering steel plate 1 is the horizontal steel plate 11, and the left and right ends are the vertical steel plates 12 bent downward. Such a covering steel plate 1 not only has a simple and easy-to-manufacture structure, but also has high structural strength and durability, so that it can play a very stable and reliable protection role. The protection device can greatly reduce the interference of external interference factors such as stones, freezing rain, snow or hail on the movement of the drawbar shaft under the stock rail. It can not only keep the rail replacement at a high speed and accuracy for a long time, but also facilitate inspection and maintenance, and is conducive to reducing potential safety hazards.

[0021] The use of the fixing steel plate 2 can not only enhance the structural strength of the installation and fixing part, but also improve the durability.

[0022] By making the rear ends of the horizontal steel plate 11 and the two vertical steel plates 12 both abutted against the front wall of the fixing steel plate 2, the purpose of accurately and stably positioning the covering steel plate 1 can be achieved, which is conducive to making the covering steel plate 1 accurately and stably play the protection effect, and further ensuring that the protection device has very high reliability.

[0023] By making the rear end of the horizontal steel plate 11 hinged to the upper end of the fixing steel plate 2 so as to be turned upward and opened, at least one elastic pressing member 3 is also arranged at the hinge joint of the horizontal steel plate 11 and the fixing steel plate 2, and the elastic pressing member 3 can elastically press the horizontal steel plate 11 to tightly press the rear ends of the horizontal steel plate 11 and the two vertical steel plates 12 against the front end of the fixing steel plate 2. This can not only make the covering steel plate 1 stably play the covering effect, but also facilitate the maintenance worker to turn over and open the covering steel plate 1, which is conducive to improving the convenience of inspection and maintenance of the switch point of the turnout, and can facilitate the cleaning of sundries accidentally falling into the protection inner cavity 10.

[0024] By providing a relief notch 21 in the middle of the bottom edge of the fixed steel plate 2 that penetrates into the protection cavity 10, the traction rod shaft of the switch can pass through the relief notch 21. In this way, it is not necessary to make the covering steel plate 1 too large, and the traction rod shaft of the switch can still be protected by the protection cavity 10, which helps to control the manufacturing difficulty and cost of the protection device.

[0025] As Figures 1 to 3 shown, the connection between the vertical steel plate 12 and the horizontal steel plate 11 is an inclined steel plate 13 that bends downward. The inclined steel plate 13 is provided to improve the anti-bending performance of the covering steel plate 1, which can reduce the amount of bending of the vertical steel plate 12 under pressure, thus occupying less space in the protection cavity 10, and further enabling the protection device to play a more stable and reliable protection role, which helps to further improve the reliability and applicability of the protection device.

[0026] As Figure 2 and Figure 3 shown, waist-shaped holes 22 are respectively provided at the left and right ends of the fixed steel plate 2. This not only facilitates the fixation of the fixed steel plate 2 by bolts but also meets the requirement of appropriately adjusting the installation position of the protection device, thus better meeting the actual use requirements and further helping to improve the applicability of the protection device.

[0027] As Figure 1 and Figure 2 shown, the protection device of the switch further includes a hinged steel shaft 4. Two first transverse drums 14 are provided at the rear end of the horizontal steel plate 11 and are arranged side by side left and right. Three second transverse drums 23 are provided at the upper end of the fixed steel plate 2 and are arranged horizontally side by side. The middle second transverse drum 23 is placed between the two first transverse drums 14. Installation gaps 20 are respectively reserved between the left and right second transverse drums 23 and the left and right first transverse drums 14. The elastic pressing member 3 is a torsion spring. There are two elastic pressing members 3, and the two elastic pressing members 3 are respectively located in the two installation gaps 20, and the two ends of the elastic pressing member 3 are respectively elastically pressed against the top surface of the horizontal steel plate 11 and the rear wall of the fixed steel plate 2. The hinged steel shaft 4 passes horizontally through the two first transverse drums 14, the three second transverse drums 23, and the two elastic pressing members 3. Anti-disengagement portions 41 are formed by bending the two ends of the hinged steel shaft 4. This not only facilitates the manufacturing of the hinge but also ensures a very high reliability and stability at the hinge, and enables the elastic pressing member 3 to play a more stable and reliable elastic role, which helps to further improve the reliability and applicability of the protection device. By bending the two ends of the hinged steel shaft 4 into anti-disengagement portions 41, the hinged steel shaft 4 can be stably limited, thus ensuring a very stable and reliable hinge.

[0028] AsFigure 1 As Figure 2 shown, the first horizontal reel 14 is formed by curling a steel sheet integrated with the horizontal steel plate 11 upward into a horizontally arranged cylinder, and the second horizontal reel 23 is formed by curling a steel sheet integrated with the fixed steel plate 2 backward into a horizontally arranged cylinder. This not only greatly facilitates manufacturing but also significantly improves the structural strength at the hinge, thereby further enhancing the reliability of the protection device.

[0029] The hinge steel shaft 4 is a stainless - steel shaft, and the elastic pressing member 3 is a stainless - steel torsion spring. This can improve the structural strength and durability of the elastic pressing member 3 and the hinge steel shaft 4, thereby contributing to further enhancing the reliability and service life of the protection device.

[0030] As Figure 1 As Figure 3 shown, a first inclined surface 15 is provided at the lower corner of the vertical steel plate 12 away from the fixed steel plate 2. This can avoid the outer corner of the vertical steel plate 12 being too sharp when the covering steel plate 1 is flipped open, thus facilitating reducing the harm of personnel collision and contributing to improving the safety in use.

[0031] As Figure 1 As Figure 2 shown, second inclined surfaces 24 are respectively provided at the upper left and right corners of the fixed steel plate 2. This can avoid the upper left and right corners of the fixed steel plate 2 being too sharp, thus facilitating reducing the harm of personnel collision and contributing to improving the safety in use.

[0032] Both the covering steel plate 1 and the fixed steel plate 2 are Q235 steel plates with electro - galvanized surfaces. This not only enables the covering steel plate 1 and the fixed steel plate 2 to have high structural strength and durability but also enables them to have very strong anti - corrosion properties, thereby contributing to improving the reliability and service life of the protection device.

[0033] During actual use, first, upper positioning blocks are set on the side wall of the railway track, and then the protection device is fixed on the positioning blocks by passing screws through the kidney - shaped holes 22. When it is necessary to open the protection device, hold the front end of the covering steel plate 1 and flip it upward to open it; when the acting force on the covering steel plate 1 is released, the elastic pressing member 3 generates an elastic acting force to reset the covering steel plate 1 and continuously elastically act on the covering steel plate 1, so that the covering steel plate 1 is stably maintained in the closed state, thus well meeting the protection requirements.

[0034] The above - mentioned embodiments are the preferred embodiments of the present utility model. All structures similar to the present utility model and equivalent changes made shall fall within the protection scope of the present utility model.

Claims

1. A protection device for a turnout switch, characterized in that: The invention comprises a covering steel plate (1) and a fixing steel plate (2), wherein the middle part of the covering steel plate (1) is a horizontal steel plate (11), the left and right ends of the covering steel plate (1) are both vertical steel plates (12) bent downward, the horizontal steel plate (11) and the two vertical steel plates (12) together enclose a protective inner cavity (10), the fixing steel plate (2) is arranged vertically, the rear end of the horizontal steel plate (11) can be flipped upward and opened to be hinged on the upper end of the fixing steel plate (2), and the horizontal steel plate (11) is connected to the fixing steel plate (2) so as to be able to rotate upward and open. The rear ends of the two vertical steel plates (12) are both against the front wall of the fixed steel plate (2); a clearance notch (21) penetrating into the protective inner cavity (10) is provided in the middle of the bottom edge of the fixed steel plate (2); at least one elastic pressing member (3) is provided at the hinge between the horizontal steel plate (11) and the fixed steel plate (2); the elastic pressing member (3) can elastically press the horizontal steel plate (11) downward so that the rear ends of the horizontal steel plate (11) and the two vertical steel plates (12) are tightly pressed against the front end of the fixed steel plate (2).

2. The protection device for a turnout switch according to claim 1, characterized in that: The connection between the vertical steel plate (12) and the horizontal steel plate (11) is an inclined steel plate (13) bent downward.

3. The protection device for a turnout switch according to claim 1, characterized in that: Waist-shaped holes (22) are respectively provided on the left and right ends of the fixed steel plate (2).

4. The protection device for a turnout switch according to claim 1, characterized in that: The invention also comprises a hinged steel shaft (4), two first transverse rollers (14) are arranged on the rear end of the horizontal steel plate (11), and the two first transverse rollers (14) are arranged side by side on the left and right, three second transverse rollers (23) are arranged on the upper end of the fixed steel plate (2), and the three second transverse rollers (23) are arranged side by side on the left and right, the middle second transverse roller (23) is placed between the two first transverse rollers (14), and installation spaces are reserved between the left and right second transverse rollers (23) and the left and right first transverse rollers (14). The elastic pressing member (3) is a torsion spring, there are two elastic pressing members (3), and the two elastic pressing members (3) are respectively located in the two installation gaps (20), and the two ends of the elastic pressing member (3) are respectively elastically pressed against the top surface of the horizontal steel plate (11) and the rear wall of the fixed steel plate (2), the hinged steel shaft (4) transversely passes through the two first transverse rollers (14), the three second transverse rollers (23), and the two elastic pressing members (3), and the two ends of the hinged steel shaft (4) are bent to form anti-slip portions (41).

5. The protection device for a turnout switch according to claim 4 is characterized in that: The first transverse winding drum (14) is composed of a steel sheet integral with the horizontal steel plate (11) rolled upward to form a transversely arranged cylinder, and the second transverse winding drum (23) is composed of a steel sheet integral with the fixed steel plate (2) rolled backward to form a transversely arranged cylinder.

6. The protection device for a turnout switch according to claim 4, characterized in that: The hinged steel shaft (4) is a stainless steel shaft, and the elastic pressing member (3) is a stainless steel torsion spring.

7. The protection device for a turnout switch according to claim 1, characterized in that: A first inclined surface (15) is provided on the lower corner of the vertical steel plate (12) away from the fixed steel plate (2).

8. The protection device for a turnout switch according to claim 1, characterized in that: Second inclined surfaces (24) are respectively provided on the left and right upper corners of the fixed steel plate (2).

9. The protection device for a turnout switch according to claim 1, characterized in that: The covering steel plate (1) and the fixing steel plate (2) are both Q235 steel plates with surface electrogalvanized.

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