Steel rail lifting device

Abstract

A steel rail lifting device, comprising: a support seat; and a pry bar, wherein a middle portion of the pry bar is hinged to an upper portion of the support seat by means of a hinge ring arranged on the bottom the pry bar, one end of the pry bar is provided with a support plate corresponding to a steel rail, and the other end of the pry bar is connected to a main bar via a positioning disc; the positioning disc is a round disc, and an end portion of the main bar is hinged to the center of the positioning disc by means of a pin shaft. In the device, by hinging together the support seat, the pry bar and the hinge ring, when a worker drives the positioning disc to be pressed downward, the support plate is lifted upwards by means of rotation of the hinge ring, thus lifting the steel rail. The configuration by which the main bar and the positioning disc fit together is such that the angle between the two can be adjusted, making it easier for a worker to press downward on the main bar from different angles. In this way, the worker can conveniently apply the proper force.

Description

Rail lifting device Technical Field

[0001] The present application belongs to the technical field of rail installation, and specifically relates to a rail lifting device. Background Art

[0002] Rails are the main components of railway tracks. Their function is to guide the wheels of locomotives and vehicles forward, bearing the enormous pressure from the wheels and transmitting it to the sleepers. Rails must provide a continuous, smooth, and minimally resisting rolling surface for the wheels. In electrified railways or automatic block sections, rails can also serve as track circuits. However, when inspecting, maintaining, or replacing rails, it is often necessary to lift the rails a certain distance from the sleepers. However, existing tools are often just simple crowbars, and when workers lift the rails, they are often affected by the surrounding environment. If the crowbar is too long, it will be blocked, and if it is too short, it will make it difficult for workers to exert force, resulting in low practicality.

[0003] Therefore, it is necessary to provide an improved technical solution to the above-mentioned deficiencies in the prior art.

[0004] Summary of the Invention

[0005] The purpose of this application is to overcome the deficiencies in the above-mentioned prior art, and this application designs a rail lifting device.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] A rail lifting device, comprising:

[0008] Support seat;

[0009] A pry bar, the middle portion of which is hinged above the support seat, one end of which is provided with a support plate corresponding to the rail, and the other end of which is connected to the main rod through a positioning plate;

[0010] The positioning disc is a circular disc, and the end of the main rod is hinged to the center of the positioning disc through a pin;

[0011] Two hinge plates are spaced apart above the support seat to form a hinged station with an upward opening. A hinged cylinder corresponding to the hinged station is provided below the pry bar. The hinge shaft passes through the hinged station and the hinged cylinder in a horizontal direction to form a hinge.

[0012] The support plate is inclined in a direction away from the support seat, and a rib corresponding to the support plate is provided above the pry bar;

[0013] A buffer is provided on one side of the support plate close to the support seat, and the buffer is perpendicular to the support plate;

[0014] Rollers are provided on both sides of the support seat.

[0015] Beneficial effects: Through the articulation of the support seat, pry rod and articulated tube, when the staff drives the positioning plate to press down, the support plate can be lifted upward with the help of the rotation of the articulated tube, thereby lifting the rail, and through the coordinated setting of the positioning plate and the main rod, the angle between the main rod and the positioning plate can be changed, which is convenient for the staff to press down the main rod at different angles, thereby facilitating the staff to perform force operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a simplified structural diagram of a lifting device according to a specific embodiment of the present application;

[0017] FIG2 is an exploded schematic diagram of a pry bar according to a specific embodiment of the present application;

[0018] FIG3 is an exploded schematic diagram of the extension rod in the specific embodiment provided in this application.

[0019] In the figure: 1. Support seat; 2. Roller; 3. Bearing; 4. Articulated cylinder; 5. Support plate; 6. Pad; 7. Positioning plate; 8. Limit block; 9. Pin; 10. Cap ring; 11. Main rod; 12. Guide rod; 13. Threaded head; 14. Extension rod; 15. Anti-slip sleeve; 16. Stop block; 17. Compression spring. DETAILED DESCRIPTION

[0020] As shown in Figures 1-3, a rail lifting device includes a support seat 1, a pry bar and a positioning plate 7. The pry bar is a forged metal part, preferably iron. As the main component for prying up the rail, the pry bar should have high strength. The support seat 1 as a whole is a mountain-shaped structure that is small at the top and large at the bottom. The middle part of the pry bar is hinged to the top of the support seat 1. One end of the pry bar is provided with a support plate 5 corresponding to the rail. The support plate 5 can be supported under the upper wing plate or under the lower wing plate (bottom) of the rail. The other end of the pry bar is connected to the main rod 11 through the positioning plate 7. The main rod 11 is a pressure-applying component. It is hinged to form a seesaw structure with the support seat 1 as the fulcrum, so as to facilitate lifting the rail.

[0021] The main rod 11 is connected to the positioning plate 7 in a hinged manner, so that the angle between the main rod 11 and the positioning plate 7 can be changed, making it convenient for the staff to press down the main rod 11 at different angles, thereby facilitating the staff to perform force operation.

[0022] The positioning disk 7 is a circular disk, and the end of the main rod 11 is hinged to the center of the positioning disk 7 through a pin 9, so that the main rod 11 has a long contact area with the positioning disk 7 no matter what angle it is at, thereby ensuring that the angle adjustment will not affect the structural strength of the device.

[0023] The main body of the support seat 1 is a plate-shaped or block-shaped structure. Two hinge plates are arranged at intervals above the support seat 1. The hinge plates are preferably isosceles triangles to form a hinge station with an opening facing upward. A hinge tube 4 corresponding to the hinge station is provided below the pry bar. The axial length of the hinge tube 4 is adapted to the width of the hinge station. After the hinge tube 4 is placed in the hinge station, the hinge shaft is coaxially installed with the hinge tube 4 to form a hinge. Specifically, through holes are provided on the two hinge plates, and the hinge shaft passes through the through holes of the hinge station and the inner hole of the hinge tube 4 in the horizontal direction to form a hinge. A bearing 3 is provided between the inner hole of the hinge tube 4 and the bearing 3.

[0024] The support plate 5 is tilted away from the support seat 1 to form an upwardly tilted boat-shaped structure, which can make it easier for the main rod 11 to apply stress. Ribs corresponding to the support plate 5 are provided above the pry bar to improve the strength of the pry bar.

[0025] The front end of the main rod 11 is provided with a notch extending along its axial direction. The main rod 11 is a metal rod. The notch passes through the axis of the main rod 11. The width of the notch is adapted to the thickness of the positioning disk 7, thereby forming a hinge. Specifically, the pin 9 passes perpendicularly through the axis of the main rod 11 and hinges the two along the axis of the positioning disk 7. The main rod 11 and the positioning disk 7 can be installed and positioned, and the main rod 11 can be rotated around the pin 9.

[0026] In order to improve the stability of the hinge, the pin 9 can be set as a bolt, which passes through the main rod 11 and the positioning plate 7 in the longitudinal direction and then connects to the cap ring 10, which can be a nut.

[0027] A limit block 8 corresponding to the main rod 11 is provided on the upper surface of the positioning plate 7 . The limit block 8 can be integrally formed with the positioning plate 7 , thereby limiting the rotation angle of the main rod 11 .

[0028] The end of the main rod 11 away from the positioning plate 7 is connected to at least one extension rod 14 through a threaded connection. The extension rod 14 is cylindrical, and a threaded head 13 extends from one end thereof, and a screw hole corresponding to the threaded head 13 is provided at the other end. In this way, multiple sections of the extension rod 14 can be assembled in the form of threads according to actual needs. A screw hole corresponding to the threaded sleeve is provided at the end of the main rod 11, so that the extension rod 14 and the main rod 11 can be docked.

[0029] The outer wall of the extension rod 14 is sleeved with an anti-slip sleeve 15. In the extension rod 14 after one or more sections are connected, the end away from the main rod 11 is threadedly connected with a stopper 16 for limiting, thereby limiting the position of the anti-slip sleeve 15 and preventing the anti-slip sleeve 15 from falling off.

[0030] The anti-slip sleeve 15 is made of rubber and is connected to the extension rod 14 through an interference fit. Each extension rod 14 is provided with a corresponding anti-slip sleeve 15. The anti-slip sleeve 15 is slidably assembled on the extension rod 14, making it easier for the staff to move the anti-slip sleeve 15 to a suitable position and more convenient for the staff to exert force. The setting of the block 16 can block the anti-slip sleeve 15.

[0031] A buffer is provided on the side of the support plate 5 close to the support seat 1. The buffer can be a compression spring 17. The buffer is perpendicular to the support plate 5, and the two are fixedly connected. When the steel pipe is lowered, the compression spring 17 is pressed against the ground in a ring form, thereby providing auxiliary support for the support plate 5, thereby reducing the generation of vibration, thereby reducing the impact of vibration on the staff along the device.

[0032] A backing plate 6 is provided on the side of the support plate 5 away from the support base 1. The backing plate 6 is a rubber plate and is detachably connected to the support plate 5 by bolts. The backing plate 6 can be fixed on the surface of the support plate 5 to protect the support plate 5, and the backing plate 6 can be replaced separately after long-term use.

[0033] Rollers 2 are provided on both sides of the support base 1. Positioning shafts for assisting rotation are fixedly connected to the outer surfaces of both sides of the support base 1. Rollers 2 for assisting sliding are sleeved on the outer surfaces of the positioning shafts. Through the coordinated arrangement of the positioning shafts and rollers 2, the support base 1 can be assisted in movement with the help of the rollers 2. There is no need for workers to lift the device during movement. The device can be moved on the ground with the help of the rollers 2, which reduces the workload of workers.

[0034] When in use, move the support plate 5 to the appropriate position and insert it under the rail. Press down the extension rod 14 to lift the rail. After prying the rail up, move the rail with the help of the roller 2 and then move the rail to the appropriate position. The staff will install the threaded head 13 and the extension rod 14 on the end of the guide rod 12 according to the use requirements.

[0035] After the rail is moved to the preset position or maintenance is completed, the extension rod 14 and the guide rod 12 are lifted upward, and the rail is lowered, and it contacts the ground with the help of the compression spring 17. The compression spring 17 cushions the impact force. The staff pulls out the support plate 5 and continues to drag the device to the next working position with the help of the roller 2.

Claims

1. A rail lifting device, characterized in that: include: Support seat; A pry bar, the middle part of which is hinged above the support seat, one end of which is provided with a support plate corresponding to the rail, and the other end of which is connected to the main rod through a positioning plate; The positioning plate is a circular plate, and the end of the main rod is hinged at the center of the positioning plate through a pin; Two hinge plates are arranged above the support seat to form a hinged station with an opening upward, and a hinged cylinder corresponding to the hinged station is arranged below the pry bar, and the hinge shaft passes through the hinged station and the hinged cylinder in the horizontal direction to form a hinge; The support plate is inclined in a direction away from the support seat, and a rib corresponding to the support plate is provided above the pry bar; A buffer is provided on one side of the support plate close to the support seat, and the buffer is perpendicular to the support plate; Rollers are arranged on both sides of the support seat.

2. The rail lifting device according to claim 1, characterized in that: The front end of the main rod is provided with a cutout extending along its axial direction, and the width of the cutout is adapted to the thickness of the positioning plate; The pin shaft passes through the main rod and the positioning plate in the longitudinal direction and then is correspondingly connected to the cap ring.

3. The rail lifting device according to claim 2, characterized in that: A limiting block corresponding to the main rod is provided on the upper surface of the positioning plate.

4. The rail lifting device according to claim 1, characterized in that: One end of the main rod away from the positioning plate is connected to at least one extension rod in the form of a threaded connection; The outer wall of the extension rod is sleeved with an anti-slip sleeve.

5. The rail lifting device according to claim 1, characterized in that: A pad is provided on one side of the support plate away from the support seat. The pad is a rubber plate. The pad is detachably connected to the support plate by bolts.

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