A railway spike puller

Abstract

The utility model relates to the technical fields of railway, disclose a railway spike puller, including support seat, the upper end fixed mounting of support seat rear end has the handle, and the inside slide coupling of support seat has the supporting plate, the front end of support seat and supporting plate all are square structure state settings, and the rear end diameter size of support seat inner chamber is identical with the rear end diameter size of supporting plate, the front end fixed mounting of supporting plate has the support plate, and the fixed assembly is set up on the board body of support plate, the left and right ends of support seat all are provided with treading assembly, the inside rotation connection of support seat has the lead screw, and the rod body of lead screw is connected together through the thread with supporting plate.

Description

Technical Field

[0001] This utility model relates to the technical field of railways, and in particular to a railway spike puller. Background Technology

[0002] A railway spike puller is a specialized tool used for railway track maintenance. Its core function is to pull the connector (spiker) between the track sleeper and the track spike out of the sleeper so that track adjustment, repair or replacement of track components can be carried out. It belongs to the category of handheld or mechanical tools in railway maintenance equipment and is commonly used in on-site operations at track maintenance sections.

[0003] Referring to patent CN209292803U, a railway spike puller is disclosed, including an L-shaped support leg. The bottom of the inner side of each L-shaped support leg has a sliding groove and a shock-absorbing groove, and the shock-absorbing groove contains a shock-absorbing component. A transmission chamber is installed between the ends of the L-shaped support legs away from the shock-absorbing groove, and a sliding sleeve is installed inside the transmission chamber. A sliding tube is slidably connected to the sliding sleeve, and transmission tooth grooves are evenly installed on one side of the sliding tube. This utility model is equipped with a hinge rod, a fixing claw, a threaded rod, and a bearing, which can stably clamp the spike and pull it out vertically, avoiding damage to the spike body. Even rusted spikes can be pulled out through stable clamping, preventing slippage. This not only reduces the difficulty of pulling out the spike but also improves the efficiency. Combined with rivets, springs, and a shield, it can be stably inserted into the gravel and soil near the spike, improving the stability of the railway spike puller.

[0004] When pulling out a rail spike, if the spike is not fully locked during the pulling process, it may jump or shift and loosen under force, causing the spike to fall off. This not only prevents the spike from being completely pulled out, but also causes injury to the operator due to the fall. Utility Model Content

[0005] In view of the problem that the existing railway spike puller does not fully lock the spike during the pulling process, causing it to jump or shift and loosen under force, thus leading to the spike falling off, this utility model is proposed.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a railway spike puller, including a support base, a handle fixedly installed at the upper end of the rear end of the support base, and a support plate slidably connected inside the support base. The front ends of both the support base and the support plate are square structures, and the rear end diameter of the inner cavity of the support base is the same as the rear end diameter of the support plate. A support plate is fixedly installed at the front end of the support plate, and a fixing component is provided on the plate body. Stepping components are provided at both the left and right ends of the support base.

[0007] In this example, the support base is internally rotatably connected to a lead screw, and the body of the lead screw is connected to the support plate by a thread. The lead screw drives the support plate through the support plate to form a lifting structure.

[0008] In this example, the fixing component includes a sliding rod. The sliding rod is fixedly installed at both the front and rear ends of the bottom of the support plate, and the left and right ends of the sliding rod are slidably connected to connecting blocks. A lifting plate is fixedly installed at the bottom of the connecting blocks.

[0009] In this example, the length of the left lifting plate in the sliding rod is slightly smaller than the length of the right lifting plate in the sliding rod, and the sidewall of the lifting plate is set in an inclined state.

[0010] In this example, a through groove is provided in the middle of the support plate, and a bidirectional threaded rod is rotatably connected in the groove. Both ends of the bidirectional threaded rod are connected to hinge blocks by threads, and the bottom of the hinge blocks is connected to the connecting block.

[0011] In this example, the pedal assembly includes a mounting frame. Mounting frames are fixedly installed on both the left and right ends of the lower end of the support base. A pedal is rotatably connected to the frame of the mounting frame. A through hole is opened on the plate of the pedal, and a spring support rod is fixedly installed on the bottom of the pedal.

[0012] In this example, guide rods are fixedly installed at both ends of the support base, and the guide rods are set in a corresponding state with the through holes. One end of the guide rod body is connected to a screw by thread.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model uses a bidirectional threaded rod that is connected to a hinge block via threads. The bottom of the hinge block is connected to a connecting block, allowing the bidirectional threaded rod to rotate within a slot. This enables the hinge block to drive the lifting plates to slide on the sliding rod via the connecting block, bringing the two sets of lifting plates closer together. This close proximity of the lifting plates clamps the rail spike. The length of the left lifting plate in the sliding rod is slightly smaller than that of the right lifting plate, creating a height difference between the two sets of lifting plates. This close proximity ensures the repeatability and controllability of the extraction process, preventing the spike from falling off. The staggered arrangement also improves the stability of the rail spike locking, thereby increasing the smoothness and success rate of the extraction operation.

[0014] 2. By tightening the screw, the guide rod and the pedal can be released from their fixation. The pedal can then be rotated on the mounting frame, causing the guide rod to slide out of the through hole and the spring support rod at the bottom of the pedal to contact the ground. This allows the pedal to be stepped on, providing additional fixing force to the support base. Stepping on the pedal can suppress overall displacement and vibration amplification caused by impact, and ensure more stable transmission of clamping and pushing forces, thereby improving the overall rigidity, safety, and reliability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a rear view schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the overall structure of the pedal closure of this utility model; Figure 4 This is a schematic diagram of the overall structure of the support plate of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Support base; 2. Handle; 3. Support plate; 4. Lead screw; 5. Support plate; 6. Sliding rod; 7. Connecting block; 8. Pulling plate; 9. Through slot; 10. Double-sided threaded rod; 11. Hinge block; 12. Mounting bracket; 13. Pedal; 14. Through hole; 15. Spring support rod; 16. Guide rod; 17. Screw. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Reference Figures 1-4 This is the first embodiment of the present invention, which provides a railway spike puller. This railway spike puller includes a support base 1, a handle 2 fixedly installed at the upper end of the rear end of the support base 1, and a support plate 3 slidably connected inside the support base 1. The front ends of both the support base 1 and the support plate 3 are square structures to restrict lateral rotation. The rear end diameter of the inner cavity of the support base 1 is the same as the rear end diameter of the support plate 3 to reduce the swaying gap of the support plate during sliding and bearing. A support plate 5 is fixedly installed at the front end of the support plate 3, and a fixing component is provided on the plate body of the support plate 5. Both the left and right ends of the support base 1 are provided with stepping components.

[0019] In this example, the support base 1 is internally connected to a lead screw 4, and the body of the lead screw 4 is connected to the support plate 3 by a thread. By controlling the rotation angle of the lead screw, the support plate can be raised and lowered slightly. The lead screw 4 drives the support plate 5 through the support plate 3 to form a lifting structure, ensuring that the support plate always maintains a stable plane state during the lifting process.

[0020] In this example, the fixing component includes a sliding rod 6. The sliding rod 6 is fixedly installed at both the front and rear ends of the bottom of the support plate 5. The left and right ends of the sliding rod 6 are slidably connected to the connecting blocks 7. The bottom of the connecting blocks 7 is fixedly installed with a lifting plate 8. The spacing between the lifting plates on both sides can be adjusted according to the width of the load to adapt to workpieces of different sizes.

[0021] In this example, the length of the left lifting plate 8 in the sliding rod 6 is slightly smaller than that of the right lifting plate 8 in the sliding rod 6, which can provide a larger contact area and achieve efficient separation with small force. The side wall of the lifting plate 8 is set in an inclined state.

[0022] In this example, a through groove 9 is provided in the middle of the support plate 5, and a bidirectional threaded rod 10 is rotatably connected in the groove 9. Both ends of the bidirectional threaded rod 10 are connected to hinge blocks 11 by threads. When the threaded rod rotates, the hinge blocks on both sides will move towards the middle or separate to the sides at the same time. The bottom of the hinge block 11 is connected to the connecting block 7 to avoid the offset caused by the inconsistent spacing on both sides when manually adjusted.

[0023] In this example, the pedal assembly includes a mounting frame 12. Mounting frames 12 are fixedly installed on both the left and right ends of the lower end of the support base 1. A pedal 13 is rotatably connected to the frame of the mounting frame 12 to prevent the support base from tilting due to unilateral force. This is especially suitable for maintaining the stability of the device when used on uneven ground. A through hole 14 is provided on the plate of the pedal 13, and a spring support rod 15 is fixedly installed at the bottom of the pedal 13. This can absorb some energy, reduce structural damage to the mounting frame and support base, and extend the life of the device.

[0024] In this example, guide rods 16 are fixedly installed at both ends of the support base 1, and the guide rods 16 and the through holes 14 are set in a corresponding state. One end of the guide rod 16 is connected to a screw 17 by thread, which provides a selectable locking fulcrum for the pedal.

[0025] During use, when removing the railway spike, the support base 1 is placed in the designated position using handle 2. A support plate 3 is slidably connected inside the support base 1, and a support plate 5 is fixedly installed at the front end of the support plate 3. Sliding rods 6 are fixedly installed at both the front and rear ends of the bottom of the support plate 5, and connecting blocks 7 are slidably connected to both the left and right ends of the sliding rods 6. A pulling plate 8 is fixedly installed at the bottom of the connecting blocks 7. When the support base 1 is placed in the designated position, the pulling plate 8 is positioned above the spike. A through groove 9 is opened in the middle of the support plate 5, and a double-threaded rod 10 is rotatably connected within the groove 9. Hinges 11 are threadedly connected to both the left and right ends of the double-threaded rod 10, and the bottom of the hinge blocks 11 is connected to the connecting blocks 7. A lead screw 4 is rotatably connected inside the support base 1, and the rod of the lead screw 4 is threadedly connected to the support plate 3, allowing the lead screw 4 to rotate. Both the support base 1 and the support plate 3 have square front ends. Furthermore, the rear end diameter of the support base 1 is the same as the rear end diameter of the support plate 3. When the screw 4 rotates, it can drive the support plate 3 to slide inside the support base 1. In turn, through the sliding of the support plate 3, the support plate 3 drives the lifting plate 8 to descend and places the lifting plate 8 on both sides of the rail spike. Then, the bidirectional threaded rod 10 in the groove of the through slot 9 can be rotated. When the bidirectional threaded rod 10 rotates, the hinge block 11 drives the lifting plate 8 to slide on the rod body of the sliding rod 6 through the connecting block 7, and makes the two sets of lifting plates 8 move closer to each other. The length of the left lifting plate 8 in the sliding rod 6 is slightly smaller than that of the right lifting plate 8 in the sliding rod 6, thus causing the two sets of lifting plates 8 to be misaligned. The side walls of the lifting plates 8 are set in an inclined state. When the two sets of lifting plates 8 approach each other, the rail spike can be clamped and fixed by the misalignment between the two sets of lifting plates 8. The approach of the lifting plates 8 can prevent them from falling off during the extraction process, and the staggered arrangement can improve the stability of the rail spike locking, thereby improving the smoothness and success rate of the extraction operation.

[0026] After the two sets of lifting plates 8 are misaligned and fixed to the road spike, a screw 17 is threaded onto one end of the guide rod 16, allowing the screw 17 to be screwed off the guide rod 16. Since the through hole 14 on the pedal 13 corresponds to the guide rod 16, and the pedal 13 rotates on the mounting bracket 12, when not in use, the pedal 13 can be flipped close to the support base 1, and fixed by the cooperation between the guide rod 16 and the screw 17. After the screw 17 is screwed off the guide rod 16, the pedal 13 on the mounting bracket 12 can be flipped. Because the bottom of the pedal 13... A spring support rod 15 is fixedly installed on the part. When the pedal 13 is flipped, the spring support rod 15 comes into contact with the ground. Then, the operator can step on the plate of the pedal 13, grasp the handle 2 with one hand, and then reverse the screw 4 again, so that the screw 4 drives the support plate 3 to slide inside the support seat 1 and slide the support plate 3 upward. When the support plate 3 is sliding, the lifting plate 8 is in close contact with the top cap on the rail spike. By continuously rotating the screw 4, the lifting plate 8 is continuously raised through the support plate 3, thereby pulling out the rail spike. Stepping on the pedal 13 can ensure a more stable transmission of clamping force and pushing force, thereby improving the overall rigidity, safety and reliability.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A railway spike puller, comprising a support base (1), characterized in that: A handle (2) is fixedly installed at the upper end of the rear end of the support base (1), and a support plate (3) is slidably connected inside the support base (1). The front ends of the support base (1) and the support plate (3) are both square structures. The rear end diameter of the inner cavity of the support base (1) is the same as the rear end diameter of the support plate (3). A support plate (5) is fixedly installed at the front end of the support plate (3), and a fixing component is provided on the plate body of the support plate (5). Both the left and right ends of the support base (1) are provided with stepping components.

2. A railway spike puller according to claim 1, characterized in that: The support base (1) is internally rotatably connected to a lead screw (4), and the rod of the lead screw (4) is connected to the support plate (3) by a thread. The lead screw (4) drives the support plate (5) through the support plate (3) to form a lifting structure.

3. A railway spike puller according to claim 1, characterized in that: The fixing component includes a sliding rod (6), and the sliding rod (6) is fixedly installed at both the front and rear ends of the bottom of the support plate (5). The left and right ends of the sliding rod (6) are slidably connected to a connecting block (7), and a lifting plate (8) is fixedly installed at the bottom of the connecting block (7).

4. A railway spike puller according to claim 3, characterized in that: The length of the left lifting plate (8) in the sliding rod (6) is slightly smaller than the length of the right lifting plate (8) in the sliding rod (6), and the side wall of the lifting plate (8) is set in an inclined state.

5. A railway spike puller according to claim 3, characterized in that: The support plate (5) has a through groove (9) in the middle position, and a two-way threaded rod (10) is rotatably connected in the groove (9). Both the left and right ends of the two-way threaded rod (10) are connected to hinge blocks (11) by threads, and the bottom of the hinge block (11) is connected to the connecting block (7).

6. A railway spike puller according to claim 1, characterized in that: The pedal assembly includes a mounting frame (12). The mounting frame (12) is fixedly installed on both the left and right ends of the lower end of the support base (1). A pedal (13) is rotatably connected to the frame of the mounting frame (12). A through hole (14) is opened on the plate of the pedal (13). A spring support rod (15) is fixedly installed at the bottom of the pedal (13).

7. A railway spike puller according to claim 6, characterized in that: Guide rods (16) are fixedly installed at both ends of the support base (1), and the guide rods (16) and the through holes (14) are set in a corresponding state. One end of the guide rod (16) is connected to a screw (17) by thread.

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