Crowbar for moving steel rail

Abstract

The utility model relates to the technical field of object carrying crowbars, in particular to a crowbar for moving a steel rail, a supporting frame comprises a top cross rod and two bottom vertical rods, the two bottom vertical rods and the top cross rod form an n shape, two ripping bars are fixedly connected to the opposite side walls of the two bottom vertical rods respectively, a wheel seat is fixedly connected to the bottom face of each bottom vertical rod, and the wheel seats are fixedly connected to the bottom face of each bottom vertical rod. The lower ends of the two bottom vertical rods are prying points, the two prying rods are stably connected with the steel rail or the I-shaped steel, the steel rail or the I-shaped steel can be stably pried, the steel rail or the I-shaped steel cannot slip in the upwarping process, and due to the arrangement of the rotating wheels, the steel rail or the I-shaped steel cannot slip off. The steel rail or I-beam lifting device is stable in structure, convenient to connect, easy to use and stably matched with the steel rail or I-beam for use, the labor intensity of carrying work of the steel rail or I-beam is relieved, operation safety is guaranteed, and work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of pry bar technology for moving items, specifically a pry bar for moving steel rails. Background Technology

[0002] A crowbar is a tool that uses the lever principle to overcome gravity and lift heavy objects off the ground, causing them to move. Current crowbar technology is generally suitable for pushing heavy objects.

[0003] During transformer relocation, the steel rails or I-beams beneath the transformer body need to be moved. Existing crowbars are not compatible with these rails or I-beams. Firstly, they cannot properly connect with the rails or I-beams, making them prone to slippage. Secondly, the limited space around the rails or I-beams makes it difficult to find suitable prying points. Furthermore, the limited space prevents the use of forklifts or other machinery for movement. Therefore, the movement of the rails or I-beams beneath the transformer body during relocation currently relies primarily on manual handling, which is highly dangerous, labor-intensive, time-consuming, and inefficient.

[0004] For example, the utility model patent with prior art announcement number CN220182718U discloses a portable pry bar device. The feature of this prior art is that a support mechanism is connected to the pry bar, which facilitates the formation of a prying point when using the pry bar. However, although this prior art solves the problem of not being able to find a suitable prying point when using the pry bar with rails or I-beams, the problem of the pry bar not being able to form a good connection with the rails or I-beams, causing the pry bar to easily slip off during use, still exists. Utility Model Content

[0005] The purpose of this utility model is to provide a crowbar for moving steel rails, which solves the problems of easy slippage and inability to find a suitable prying point when using existing crowbars with steel rails or I-beams.

[0006] To solve the above-mentioned technical problems, this utility model provides a pry bar for moving steel rails, comprising a support frame, a bar body, and pry bars. The support frame includes a top crossbar and two bottom uprights, forming an "n" shape with the top crossbar. Two pry bars are provided, each fixedly connected to the opposite sidewall of the two bottom uprights. The two pry bars are symmetrically arranged about the center of the top crossbar's length direction, parallel to the top crossbar, and located below it. A gap exists between the two pry bars, greater than the thickness of the rail web or the thickness of the I-beam web plate. A gap also exists between each pry bar and the top crossbar. The gap between the pry bar and the top crossbar is greater than the thickness of the rail head or the thickness of the upper flange of the I-beam. The vertical distance between the pry bar and the bottom surface of the bottom upright is greater than the straight length from the bottom surface of the rail head to the bottom surface of the rail or the straight length from the bottom surface of the upper flange of the I-beam to the bottom surface of the lower flange of the I-beam. The lower end of the roller is fixedly connected to the outer wall of the top crossbar.

[0007] Furthermore, each of the bottom uprights is fixedly connected to a wheel seat, and a rotating wheel is rotatably connected to the wheel seat. The axis of the rotating wheel is in the same direction as the axis of the pry bar.

[0008] Furthermore, the wheel seat includes a top horizontal plate and a bottom vertical plate. The bottom vertical plate is provided with two bottom vertical plates and the top horizontal plate forming an "n" shape. The lower part of the two bottom vertical plates is provided with axle holes. The two axle holes are coaxial and both axle holes are inserted into the same axle. The center of the wheel is connected to a bearing, the axle passes through the bearing, and the wheel is located between the two bottom vertical plates.

[0009] Furthermore, both ends of the axle are provided with external threads, which pass through two shaft holes respectively. Nuts are connected to both external threads, and the nuts are abutted against the outer wall of the bottom plate.

[0010] Furthermore, each of the aforementioned pry bars has a reinforcing rib fixedly connected to its bottom surface and the bottom upright.

[0011] Furthermore, the end of the rod away from the top crossbar is fitted with an anti-slip sleeve.

[0012] Furthermore, the aforementioned wheel is a polyurethane-coated wheel.

[0013] Furthermore, the anti-slip sleeve material is sponge or rubber.

[0014] The beneficial effects of this utility model are as follows: The lower ends of the two bottom uprights of this utility model are pry points, and the two pry bars form a stable connection with the rails or I-beams, thereby solving the problems of easy slippage of the pry bar and inability to find a suitable pry point when using it with rails or I-beams in the prior art. This utility model can stably pry up the rails or I-beams without slipping during the lifting process. The setting of the rotating wheel makes it convenient to move the rails or I-beams directly after they are lifted. This utility model has a stable structure, is easy to connect, simple to use, and is stably adapted to the use of rails or I-beams, reducing the labor intensity of handling rails or I-beams, ensuring operational safety, and improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the support frame of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the wheel seat and industrial caster of this utility model;

[0018] Figure 4 This is a structural diagram of the present invention when used with steel rails;

[0019] Figure 5 This is a side view of the initial state of the present invention when used with a steel rail;

[0020] Figure 6 The figure shows a side view of the rail being pried up, which is part of the present invention.

[0021] In the diagram: 1. Support frame; 101. Top crossbar; 102. Bottom upright; 2. Roller body; 3. Lifting pry bar; 4. Wheel seat; 401. Top cross plate; 402. Bottom upright plate; 4021. Shaft hole; 5. Rotary wheel; 6. Wheel axle; 601. External thread; 7. Anti-slip sleeve; 8. Reinforcing rib. Detailed Implementation

[0022] like Figures 1-6As shown, the present invention discloses a pry bar for moving steel rails, comprising a support frame 1, a bar body 2, and a pry bar 3. The support frame 1 includes a top crossbar 101 and two bottom uprights 102. The two bottom uprights 102 and the top crossbar 101 form an "n" shape. Two pry bars 3 are provided, and the two pry bars 3 are respectively fixedly connected to the opposite side walls of the two bottom uprights 102. The two pry bars 3 are symmetrically arranged about the center of the length direction of the top crossbar 101. Both pry bars 3 are parallel to the top crossbar 101 and are located on the top crossbar 101. Below, there is a gap between the two pry bars 3. The gap between the two pry bars 3 is greater than the thickness of the rail web or the thickness of the I-beam web. There is a gap between both pry bars 3 and the top crossbar 101. The gap between the pry bar 3 and the top crossbar 101 is greater than the thickness of the rail head or the thickness of the upper flange of the I-beam. The vertical distance between the pry bar 3 and the bottom surface of the bottom upright 102 is greater than the straight length from the bottom surface of the rail head to the bottom surface of the rail or the straight length from the bottom surface of the upper flange of the I-beam to the bottom surface of the lower flange of the I-beam. The lower end of the roller 2 is fixedly connected to the outer wall of the top crossbar 101.

[0023] In this invention, the lower ends of the two bottom uprights 102 serve as pry points, and the two pry bars 3 are connected to the rails or I-beams. During use, the two pry bars 3 are pressed against the bottom surface of the rail head or the bottom surface of the upper flange of the I-beam, thus forming a stable connection between the pry bars 3 and the rails or I-beams. The lower ends of the two bottom uprights 102 are supported on the ground to form pry points. It should be noted that in the initial state of connection with the rails or I-beams, the support frame 1 and the rod 2 should be inclined. After connection, the support frame 1 and the rod 2 are pried vertically, reducing the angle of inclination of this invention relative to the vertical direction, thereby enabling the rails or I-beams to be pried up.

[0024] When using this invention, the rail or I-beam can be inserted from the end section of the rail or I-beam.

[0025] When the gap between the two pry bars 3 is greater than the thickness of the rail web or the web plate of the I-beam, it is because the two pry bars 3 are pressed against the bottom surface of the rail head from both sides of the rail web or against the upper flange of the I-beam from both sides of the web plate. Therefore, the gap between the two pry bars 3 must allow for the thickness of the rail web or the web plate of the I-beam to prevent the pry bars 3 from rubbing against the rail web or the web plate of the I-beam.

[0026] When the gap between the pry bar 3 and the top crossbar 101 is greater than the thickness of the rail head or the upper flange of the I-beam, it is important to note that since the support frame 1 and the rod 2 are inclined in the initial state of this utility model, the space occupied by the rail head or the upper flange of the I-beam when the support frame 1 is inclined is larger than the space occupied when the support frame 1 is vertical. Therefore, the gap between the pry bar 3 and the top crossbar 101 must not only be greater than the thickness of the rail head or the upper flange of the I-beam, but also ensure that there is space between the pry bar 3 and the top crossbar 101 to accommodate the rail head when the support frame 1 is inclined.

[0027] When the vertical distance between the pry bar 3 and the bottom surface of the bottom support 102 is greater than the straight-line length from the bottom surface of the rail head to the bottom surface of the rail or the straight-line length from the bottom surface of the upper flange of the I-beam to the bottom surface of the lower flange of the I-beam, in order to ensure that the rail or I-beam can be lifted off the ground due to the prying distance, in the initial state of connection between the present invention and the rail or I-beam, the support frame 1 is inclined, the bottom surface of the bottom support 102 is in contact with the ground, and the pry bar 3 is in contact with the rail head. During the prying process, the support frame 1 exhibits a circular motion with the bottom surface of the bottom upright 102 as the center and the vertical distance between the pry bar 3 and the bottom surface of the bottom upright 102 as the radius. Therefore, the rail or I-beam can only be pried up by this utility model when the vertical distance between the pry bar 3 and the bottom surface of the bottom upright 102 is greater than the straight length from the bottom surface of the rail head to the bottom surface of the rail or the straight length from the bottom surface of the upper flange of the I-beam to the bottom surface of the lower flange of the I-beam.

[0028] Based on the above technical solution, considering the movement of the rails or I-beams when prying, each bottom support 102 of this utility model is fixedly connected to a wheel seat 4 on its bottom surface. A rotating wheel 5 is rotatably connected to the wheel seat 4, and the axis of the rotating wheel 5 is in the same direction as the axis of the pry bar 3. The wheel seat 4 includes a top horizontal plate 401 and a bottom vertical plate 402. The bottom vertical plate 402 is provided with two bottom vertical plates 402 and the top horizontal plate 401 forming an "n" shape. The lower part of each of the two bottom vertical plates 402 is provided with a shaft hole 4021, and the two shaft holes 4021 are coaxial. Both shaft holes 4021 are coaxially connected to a wheel axle 6. A bearing is connected to the center of the wheel 5, and the wheel axle 6 passes through the bearing. The wheel 5 is located between two base plates 402. Both ends of the wheel axle 6 are provided with external threads 601. The external threads 601 at both ends of the wheel axle 6 pass through the two shaft holes 4021. Nuts are connected to both external threads 601, and the nuts are abutted against the outer wall of the base plate 402. The wheel 5 is a polyurethane coated wheel, which can be purchased directly. Generally, polyurethane coated wheels are shipped with a center bearing installed.

[0029] By setting the rotating wheel 5, this utility model can be pushed after the rail or I-beam is lifted. In use, two of these utility models can be used to pry up the two ends of the rail or I-beam respectively and then push the rail or I-beam as a whole, thereby moving the rail or I-beam in the direction of movement.

[0030] It should be noted that during the process of raising the rail or I-beam in this utility model, the rotating wheel 5 should be prevented from rotating. At this time, a top block can be used to support the rotating wheel 5, or a locking mechanism for the rotating wheel 5 can be designed separately.

[0031] Each pry bar 3 has a reinforcing rib 8 fixedly connected between its bottom surface and the bottom upright 102. The reinforcing rib 8 enhances the structural strength of the pry bar 3 and prevents the pry bar 3 from deforming.

[0032] The anti-slip sleeve 7 is made of sponge or rubber. When the operator holds the anti-slip sleeve 7 to operate this utility model, the anti-slip sleeve 7 serves to improve the comfort of use and prevent the operator's hand from slipping.

[0033] In use, two of these inventions are inserted at an angle from the cross-sections of both ends of the rail or I-beam. After insertion, the rotating wheel 5 is brought into contact with the ground, and the pry bar 3 is brought into contact with the bottom surface of the rail head or the bottom surface of the upper flange of the I-beam, forming a... Figure 4 and Figure 5 The structure shown uses a top block to support the rotating wheel 5, preventing the wheel 5 from rotating; the worker holds the anti-slip sleeve 7 and pries the utility model vertically to lift the rail or I-beam from the ground, forming a shape like... Figure 6 With the structure shown, removing the top block of the top connecting wheel 5 allows the rail or I-beam to be moved using this invention. Once in place, the rail or I-beam can be placed stably on the ground, and the invention can be removed to complete the operation.

[0034] For long rails or I-beams, multiple of these inventions can be used in combination. That is, multiple inventions can be set in the middle between two inventions connected at both ends of the rail or I-beam, so as to achieve stable support for the rail or I-beam.

Claims

1. A crowbar for moving a rail, characterised in that: The utility model provides a steel rail or I-beam lifting device, including support frame (1), stick body (2) and crowbar (3), support frame (1) includes top cross bar (101) and bottom vertical rod (102), bottom vertical rod (102) is equipped with two, two bottom vertical rod (102) and top cross bar (101) form "n", crowbar (3) is equipped with two, two crowbar (3) are fixedly connected on the opposite side wall of two bottom vertical rod (102) respectively, two crowbar (3) are centrally symmetric with the length direction of top cross bar (101) and are set, two crowbar (3) are parallel with top cross bar (101), two crowbar (3) are all set below top cross bar (101), and the gap between two crowbar (3) is greater than the thickness of rail waist or the thickness of I-beam waist plate, and the gap between two crowbar (3) and top cross bar (101) is greater than the thickness of rail head or the thickness of I-beam upper flange, and the vertical distance between crowbar (3) and the bottom surface of bottom vertical rod (102) is greater than the straight line length from the bottom surface of rail head to the bottom surface of rail or the straight line length from the bottom surface of I-beam upper flange to the bottom surface of I-beam lower flange, and stick body (2) lower end is fixedly connected on the outer wall of top cross bar (101).

2. A mobile rail lever according to claim 1, characterized in that: The bottom surface of each bottom vertical rod (102) is fixedly connected with a wheel seat (4), the wheel seat (4) is rotatably connected with a rotating wheel (5), and the axis direction of the rotating wheel (5) is the same as the axis direction of the crowbar (3).

3. A mobile rail lever according to claim 2, characterized in that: The wheel seat (4) includes a top horizontal plate (401) and a bottom vertical plate (402), the bottom vertical plate (402) is provided with two bottom vertical plates (402) and a top horizontal plate (401) to form an "n" shape, the lower part of each bottom vertical plate (402) is provided with an axle hole (4021), the two axle holes (4021) are coaxial, and the two coaxial axle holes (4021) are jointly inserted with a wheel shaft (6), the rotating wheel (5) is connected with a bearing at the center, the wheel shaft (6) penetrates through the bearing, and the rotating wheel (5) is arranged between the two bottom vertical plates (402).

4. A mobile rail lever according to claim 3, characterized in that: The wheel shaft (6) is provided with external threads (601) at both ends, the external threads (601) at both ends of the wheel shaft (6) penetrate through the two axle holes (4021) respectively, and the two external threads (601) are connected with nuts, and the nuts are in abutment with the outer side wall of the bottom vertical plate (402).

5. A mobile rail lever according to any one of claims 1-4, characterized in that: Each crowbar (3) is fixedly connected with a reinforcing rib (8) between the bottom surface and the bottom vertical rod (102).

6. A mobile rail lever according to any one of claims 1-4, characterized in that: The end of the stick body (2) away from the top cross bar (101) is sleeved with an anti-skid sleeve (7).

7. A mobile rail lever according to any one of claims 2-4, characterised in that: The rotating wheel (5) is a polyurethane rubber-coated wheel.

8. A mobile rail lever according to claim 6, characterized in that: The anti-skid sleeve (7) is made of sponge or rubber.

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