Cut-off device for electric wire and cable laying

Abstract

The utility model discloses a cutting device for laying electric wires and cables, which comprises a cart, an L-shaped mounting plate is fixed at the top of the cart, a rotatable mounting disc is arranged on the L-shaped mounting plate, a mounting rod is coaxially fixed on the mounting disc, an internal expansion mechanism is mounted on the mounting rod, and the internal expansion mechanism is fixed on the cart. A cutting mechanism is mounted at the position, away from the L-shaped mounting plate, of the top of the cart, two mounting lugs are fixed to the position, close to the cutting mechanism, of the bottom of the cart, rear wheels are rotationally arranged on the mounting lugs, and two universal wheels are mounted at the position, close to the L-shaped mounting plate, of the bottom of the cart. The internal expansion mechanism comprises a two-way lead screw, a notch is formed in the mounting rod, the two-way lead screw is rotationally arranged in the notch, and two sliding blocks are mounted on the two-way lead screw. According to the utility model, winding drums of different models can be fixed, and a cable can be automatically released and cut off when the cart moves, so that the cable is convenient to lay.

Description

Technical Field

[0001] This utility model relates to the field of wire and cable laying technology, and in particular to a cutting device for wire and cable laying. Background Technology

[0002] Wires and cables are wire products used to transmit electrical (magnetic) energy, information, and realize the conversion of electromagnetic energy. In a broad sense, wires and cables are also simply referred to as cables. In a narrow sense, cables refer to insulated cables, which can be defined as: an assembly consisting of one or more insulated conductors, and their respective possible coverings, overall protective layers, and outer sheaths. Cables may also have additional uninsulated conductors.

[0003] During the laying of wires and cables, it is often necessary to cut them. The existing method is to unwind the cable from the reel to a suitable length and then cut it. However, this method is inconvenient, and manual unwinding and cutting is laborious and inefficient. Therefore, we designed a cutting device for laying wires and cables. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a cutting device for laying wires and cables.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cutting device for laying wires and cables includes a trolley, an L-shaped mounting plate fixed to the top of the trolley, a rotatable mounting disc on the L-shaped mounting plate, a mounting rod coaxially fixed to the mounting disc, an internal expansion mechanism mounted on the mounting rod, a cutting mechanism mounted on the top of the trolley away from the L-shaped mounting plate, two mounting ears fixed to the bottom of the trolley near the cutting mechanism, and rear wheels rotatably mounted on the mounting ears, and two caster wheels mounted to the bottom of the trolley near the L-shaped mounting plate.

[0007] The internal expansion mechanism includes a bidirectional lead screw, a slot is provided on the mounting rod, and the bidirectional lead screw is rotatably disposed in the slot. Two sliders are installed on the bidirectional lead screw, and lead screw nut holes adapted to the bidirectional lead screw are provided on the sliders. Connecting arms are rotatably connected to the top and bottom of the sliders. Extrusion rods are provided above and below the bidirectional lead screw, and the extrusion rods are rotatably connected to the corresponding two connecting arms.

[0008] Preferably, the bidirectional lead screw is coaxially fixed with a handle, and the mounting rod has a hole for the shaft to pass through.

[0009] Preferably, the mounting plate is coaxially fixed with a first synchronous pulley, the first synchronous pulley is connected to a second synchronous pulley via a synchronous belt, and the second synchronous pulley is coaxially fixed with the corresponding rear wheel.

[0010] Preferably, a vertical plate is fixed to the top of the trolley between the cutting mechanism and the L-shaped mounting plate, and a sleeve is fixed to the top of the vertical plate. The cable passes through the sleeve so that the cable can move along the positions of the lower clamp and the upper clamp, avoiding bending at the cutting point and affecting the cutting.

[0011] Preferably, the cutting mechanism includes a U-shaped frame fixed to the top of the trolley, an electric push rod fixed to the top of the U-shaped frame, and a hole through which the output shaft of the electric push rod passes through the top of the U-shaped frame. An upper clamping plate is fixed to the output shaft of the electric push rod, and a circular cutter is fixed to the inner wall of the upper clamping plate. A lower clamping plate corresponding to the upper clamping plate is fixed to the bottom of the inner wall of the U-shaped frame.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. Because it is equipped with a trolley, rear wheels, casters, L-shaped mounting plate, mounting disc, mounting rod, internal expansion mechanism, and cutting mechanism, the rotation of the double-sided lead screw can bring the two sliders on the double-sided lead screw closer together, enabling the connecting arm to deflect and push up the extrusion rod to press the inner wall of the drum, thus fixing it. When the trolley moves, it can drive the mounting rod to rotate, releasing the cable on the drum for laying. When the length is appropriate, the cutting mechanism is activated to cut the cable. Through the above design, different types of drums can be fixed, and the cable can be automatically released and cut when the trolley moves, facilitating cable laying.

[0014] 2. The cable is threaded onto the lower clamp and is limited by two limiting plates to prevent it from slipping out of the lower clamp. The electric push rod drives the circular cutter to move down and cut the cable. The upper and lower clamps fit together to effectively cover the cable, making the cutting process safer. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional structural schematic diagram of a cutting device for laying wires and cables proposed in this utility model.

[0016] Figure 2 This is a second three-dimensional structural diagram of a cutting device for laying wires and cables proposed in this utility model;

[0017] Figure 3 This is a partial unfolded three-dimensional structural diagram of a cutting device for laying wires and cables proposed in this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the cutting mechanism of a cutting device for laying wires and cables proposed in this utility model.

[0019] In the diagram: 1. Cart; 2. Rear wheel; 3. Caster wheel; 4. L-shaped mounting plate; 5. Mounting rod; 6. Mounting disc; 7. Cutting mechanism; 8. Vertical plate; 9. Sleeve; 10. Handle; 11. Groove; 12. Two-way lead screw; 13. Slider; 14. Connecting arm; 15. Extrusion rod; 16. First synchronous pulley; 17. Synchronous belt; 18. Second synchronous pulley; 19. U-shaped frame; 20. Electric push rod; 21. Upper clamping plate; 22. Lower clamping plate; 23. Limiting plate; 24. Circular cutter. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example 1: Refer to Figure 1-4 A cutting device for laying wires and cables includes a trolley 1, an L-shaped mounting plate 4 fixed to the top of the trolley 1, a rotatable mounting disc 6 on the L-shaped mounting plate 4, a mounting rod 5 coaxially fixed to the mounting disc 6, an internal expansion mechanism mounted on the mounting rod 5, a cutting mechanism 7 mounted on the top of the trolley 1 away from the L-shaped mounting plate 4, two mounting ears fixed to the bottom of the trolley 1 near the cutting mechanism 7, and rear wheels 2 rotatably mounted on the mounting ears, and two caster wheels 3 mounted to the bottom of the trolley 1 near the L-shaped mounting plate 4.

[0022] The internal expansion mechanism includes a bidirectional lead screw 12, a slot 11 is provided on the mounting rod 5, and the bidirectional lead screw 12 is rotatably disposed in the slot 11. Two sliders 13 are mounted on the bidirectional lead screw 12, and lead screw nut holes adapted to the bidirectional lead screw 12 are provided on the sliders 13. Connecting arms 14 are rotatably connected to the top and bottom of the sliders 13. Extrusion rods 15 are provided above and below the bidirectional lead screw 12, and the extrusion rods 15 are rotatably connected to the corresponding two connecting arms 14.

[0023] In this utility model, a handle 10 is coaxially fixed to the bidirectional lead screw 12, and a hole for the shaft to pass through is provided on the mounting rod 5.

[0024] In this utility model, a first synchronous pulley 16 is coaxially fixed to the mounting plate 6, and a second synchronous pulley 18 is connected to the first synchronous pulley 16 through a synchronous belt 17. The second synchronous pulley 18 is coaxially fixed to the corresponding rear wheel 2.

[0025] In this utility model, a vertical plate 8 is fixed at the top of the trolley 1 between the cutting mechanism 7 and the L-shaped mounting plate 4. A sleeve 9 is fixed at the top of the vertical plate 8. The cable passes through the sleeve 9 so that the cable can move along the position of the lower clamping plate 22 and the upper clamping plate 21, avoiding bending at the cutting point and affecting the cutting.

[0026] In this utility model, the cutting mechanism 7 includes a U-shaped frame 19 fixed to the top of the trolley 1. An electric push rod 20 is fixed to the top of the U-shaped frame 19, and a hole is opened on the top of the U-shaped frame 19 for the output shaft of the electric push rod 20 to pass through. An upper clamping plate 21 is fixed to the output shaft of the electric push rod 20, and a circular cutter 24 is fixed to the inner wall of the upper clamping plate 21. A lower clamping plate 22 corresponding to the upper clamping plate 21 is fixed to the bottom of the inner wall of the U-shaped frame 19.

[0027] From the above description, it can be seen that the first embodiment of this utility model achieves the following technical effects: Due to the use of a trolley 1, rear wheel 2, universal wheel 3, L-shaped mounting plate 4, mounting disc 6, mounting rod 5, internal expansion mechanism, and cutting mechanism 7, the internal expansion mechanism includes a bidirectional lead screw 12 connected to the handle 10, a slider 13, a connecting arm 14, and a pressing rod 15. In use, a reel with a cable is sleeved on the outer wall of the mounting rod 5. Through the rotation of the bidirectional lead screw 12, the two sliders 13 on the bidirectional lead screw 12 can move closer to each other, thereby achieving the deflection of the connecting arm 14. The pressing rod 15 presses against the inner wall of the drum to fix it in place. Since the mounting plate 6 is coaxially fixed with the first synchronous wheel 16, and the first synchronous wheel 16 is connected to the second synchronous wheel 18 through the synchronous belt 17, and the second synchronous wheel 18 is coaxially fixed with the rear wheel 2, the trolley 1 can drive the mounting rod 5 to rotate when it moves, releasing the cable on the drum for laying. When the length is appropriate, the cutting mechanism 7 is activated to cut the cable. Through the above design, different types of drums can be fixed, and the cable can be automatically released and cut when the trolley 1 moves, which is convenient for cable laying.

[0028] Example 2: The difference from Example 1 is that the lower clamping plate 22 has a limit plate 23 fixed on both sides of the top, and the upper clamping plate 21 has a hole for the limit plate 23 to pass through.

[0029] As can be seen from the above description, the second embodiment of this utility model achieves the following technical effects: the cable is threaded on the lower clamping plate 22 and is limited by two limiting plates 23 to prevent the cable from deviating out of the lower clamping plate 22. The electric push rod 20 drives the circular cutter 24 to move down to complete the cutting of the cable. The upper clamping plate 21 and the lower clamping plate 22 fit together to effectively cover the cable, making the cutting process safer.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cutting device for laying electric wires and cables, comprising a trolley (1), characterized in that, The top of the trolley (1) is fixed with an L-shaped mounting plate (4), and a rotatable mounting disc (6) is provided on the L-shaped mounting plate (4). The mounting disc (6) is coaxially fixed with a mounting rod (5), and an internal expansion mechanism is installed on the mounting rod (5). A cutting mechanism (7) is installed on the top of the trolley (1) away from the L-shaped mounting plate (4). Two mounting ears are fixed on the bottom of the trolley (1) near the cutting mechanism (7), and the mounting ears are rotatably equipped with rear wheels (2). Two universal wheels (3) are installed on the bottom of the trolley (1) near the L-shaped mounting plate (4). The internal expansion mechanism includes a bidirectional lead screw (12), a slot (11) is provided on the mounting rod (5), and the bidirectional lead screw (12) is rotatably disposed in the slot (11). Two sliders (13) are installed on the bidirectional lead screw (12), and a lead screw nut hole adapted to the bidirectional lead screw (12) is provided on the slider (13). Connecting arms (14) are rotatably connected to the top and bottom of the slider (13). Extrusion rods (15) are provided above and below the bidirectional lead screw (12), and the extrusion rods (15) are rotatably connected to the corresponding two connecting arms (14).

2. The cutting device for laying electric wires and cables according to claim 1, characterized in that, The bidirectional lead screw (12) is coaxially fixed with a handle (10), and the mounting rod (5) has a hole for the shaft to pass through.

3. The cutting device for laying electric wires and cables according to claim 1, characterized in that, The mounting plate (6) is coaxially fixed with a first synchronous pulley (16), and the first synchronous pulley (16) is connected to a second synchronous pulley (18) via a synchronous belt (17). The second synchronous pulley (18) is coaxially fixed with the corresponding rear wheel (2).

4. The cutting device for laying electric wires and cables according to claim 1, characterized in that, The top of the trolley (1) is fixed with a vertical plate (8) between the cutting mechanism (7) and the L-shaped mounting plate (4), and a sleeve (9) is fixed to the top of the vertical plate (8).

5. The cutting device for laying electric wires and cables according to claim 1, characterized in that, The cutting mechanism (7) includes a U-shaped frame (19) fixed to the top of the trolley (1). An electric push rod (20) is fixed to the top of the U-shaped frame (19), and a hole is opened on the top of the U-shaped frame (19) through which the output shaft of the electric push rod (20) passes. An upper clamping plate (21) is fixed to the output shaft of the electric push rod (20), and a circular cutter (24) is fixed to the inner wall of the upper clamping plate (21). A lower clamping plate (22) corresponding to the upper clamping plate (21) is fixed to the bottom of the inner wall of the U-shaped frame (19).

6. The cutting device for laying electric wires and cables according to claim 5, characterized in that, Limiting plates (23) are fixed on both sides of the top of the lower clamping plate (22), and holes for the limiting plates (23) to pass through are provided on the upper clamping plate (21).

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