Manual cutting device for annular wall

Abstract

The utility model relates to the technical field of cutting devices, in particular to an annular wall manual cutting device which comprises a fixing frame, the fixing frame is provided with an arc-shaped notch, a cutting assembly is arranged at the arc-shaped notch, side plates are fixedly connected to the two sides of the fixing frame, fixing assemblies are arranged on the side plates, and the fixing assemblies are arranged on the fixing frame. A handle is fixedly connected to the side, away from the arc-shaped notch, of the fixing frame. And the cutting assembly comprises rubber rollers distributed in the arc-shaped notch in an arc-shaped mode, a cutting knife is arranged between the multiple rubber rollers, and the cutting knife is fixedly connected to the output end of the motor. According to the annular wall cutting device, the rubber roller is installed on the arc-shaped notch, so that the annular wall cutting device can be attached to the annular wall, the surface of the annular wall can be cut, the cutting depth can be controlled by adjusting the position of the cutting knife through the lead screw, and the annular wall cutting device can better adapt to annular walls of different diameters.

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, and in particular to a manual cutting device for ring-shaped walls. Background Technology

[0002] The walls mainly consist of load-bearing and non-load-bearing walls, primarily serving to enclose and divide space. In load-bearing structural buildings, the walls combine load-bearing and enclosure functions; in skeletal structural systems, the walls function to enclose and divide space. Walls must possess sufficient strength and stability, and have the ability to insulate, heat-insulate, sound-insulate, fire-resistant, and waterproof; their shapes are often square or ring-shaped.

[0003] A search of Chinese patent publication number CN215039010U reveals a wall cutting device.

[0004] The above technical solution includes a vehicle body, a base plate, a supporting arm, a first hydraulic cylinder, a connecting arm, a second hydraulic cylinder, and a cutting mechanism. The base plate is detachably connected to the front end of the vehicle body. Ribs are symmetrically arranged on both sides of the base plate, each rib being hinged to one of the supporting arms. The cylinder body of the first hydraulic cylinder is hinged to the base plate, and the piston rod end of the first hydraulic cylinder is hinged to the bottom of the supporting arm. The supporting arm is hinged to the connecting arm, and the two connecting arms are connected by a fixed plate. The cylinder body of the second hydraulic cylinder is hinged to the base plate, and the piston rod end of the second hydraulic cylinder is hinged to a connecting plate. The connecting plate is hinged to the connecting arm, and the cutting mechanism is mounted on the fixed plate. This utility model can cut the walls of large buildings and allows for adjustment of the cutting angle as needed.

[0005] However, while the above-mentioned technology can cut walls, it requires multiple angle adjustments when cutting a ring-shaped wall, which is very inconvenient.

[0006] Therefore, we propose a manual cutting device for ring-shaped walls. Utility Model Content

[0007] The present invention mainly addresses the technical problems existing in the prior art by providing a manual cutting device for ring-shaped walls.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a manual cutting device for a ring-shaped wall, including a fixing frame, the fixing frame having an arc-shaped notch, a cutting component being provided at the arc-shaped notch, side plates being fixedly connected to both sides of the fixing frame, fixing components being provided on each side plate, and a handle being fixedly connected to the side of the fixing frame away from the arc-shaped notch.

[0009] A cutting assembly includes rubber rollers arranged in an arc shape at an arc-shaped notch, and a cutting blade disposed between the rubber rollers, the cutting blade being fixedly connected to the output end of a motor.

[0010] Preferably, the motor is fixedly connected to the U-shaped frame, and a lead screw is rotatably connected to one side of the U-shaped frame. The lead screw is threaded onto a nut, and the nut is fixedly connected to a fixed frame. The lead screw passes through the nut and extends out of the fixed frame.

[0011] Preferably, sliders are fixedly connected to both sides of the U-shaped frame, the sliders are slidably connected to the slide rail, and the slide rail is fixedly connected to the fixed frame.

[0012] Preferably, the two ends of the rubber roller are rotatably connected to a fixed shaft, and the fixed shaft is fixedly connected to the arc-shaped notch.

[0013] Preferably, the fixing component includes a one-way bearing, a sliding rod is slidably connected inside the one-way bearing, an electric telescopic rod is fixedly connected to one side of the sliding rod, and an arc-shaped rod is fixedly connected to one end of the electric telescopic rod.

[0014] Preferably, the slide bar is a square tube, and the one-way bearing is provided with a square slot.

[0015] This utility model provides a manual cutting device for ring-shaped walls, which has the following improvements and advantages compared with the prior art:

[0016] (1) This utility model adopts a cutting component set at the arc-shaped notch. The cutting component includes rubber rollers distributed in an arc shape at the arc-shaped notch. A cutting blade is set in the middle of several rubber rollers. The cutting blade is fixedly connected to the output end of the motor. The motor is fixedly connected to the U-shaped frame. A lead screw is rotatably connected to one side of the U-shaped frame. The lead screw is threaded to a nut. The nut is fixedly connected to a fixed frame. The lead screw passes through the nut and extends out of the fixed frame. Slider blocks are fixedly connected to both sides of the U-shaped frame. The sliders are slidably connected to the slide rail. The slide rail is fixedly connected to the fixed frame. The two ends of the rubber rollers are rotatably connected to a fixed shaft. The fixed shaft is fixedly connected to the arc-shaped notch. By setting the rubber rollers on the arc-shaped notch, the device can fit against the annular wall, thereby cutting the surface of the annular wall. By setting the lead screw to adjust the position of the cutting blade, the cutting depth can be controlled, and it can also better adapt to annular walls of different diameters.

[0017] (2) This utility model adopts a fixing component, which includes a one-way bearing, a sliding rod slidably connected inside the one-way bearing, an electric telescopic rod fixedly connected to one side of the sliding rod, and an arc-shaped rod fixedly connected to one end of the electric telescopic rod. The sliding rod is a square tube, and the one-way bearing is provided with a square slot. By setting the fixing component, this device can be stuck on the annular wall. The arc-shaped rod and the rubber roller directly form a U-shaped structure, thereby getting stuck on the annular wall, reducing the burden of manual cutting for workers and saving a lot of effort. Attached Figure Description

[0018] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 This is a three-dimensional structural schematic diagram of the cutting component in this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the fixing component in this utility model.

[0022] Legend:

[0023] 10. Fixing frame; 11. Handle; 12. Arc-shaped notch; 13. Side plate; 20. Cutting assembly; 21. Fixing shaft; 22. Rubber roller; 23. U-shaped frame; 24. Motor; 25. Cutting blade; 26. Slider; 27. Slide rail; 28. Lead screw; 29. ​​Nut; 30. Fixing assembly; 31. One-way bearing; 32. Slide rod; 33. Electric telescopic rod; 34. Arc-shaped rod. Detailed Implementation

[0024] The invention will now be further described with reference to the accompanying drawings and specific embodiments:

[0025] Example 1

[0026] Please see Figures 1 to 2Embodiment 1 describes a mounting frame 10 with an arc-shaped notch 12 for mounting components. The arc-shaped notch 12 adapts to an annular wall. A cutting assembly 20 is installed at the arc-shaped notch 12. Side plates 13 are fixedly connected to both sides of the mounting frame 10 for mounting components. Each side plate 13 is equipped with a fixing assembly 30. A handle 11 is fixedly connected to the side of the mounting frame 10 away from the arc-shaped notch 12 for easy gripping. The cutting assembly 20 includes rubber rollers 22 arc-shapedly distributed on the arc-shaped notch 12. The rubber rollers 22 can easily roll on the annular wall, and their friction reduces the force of the device falling. An arc-shaped groove extends from the outer side of each rubber roller 22. A cutting blade 25 is installed between the rubber rollers 22 and is fixedly connected to... The output end of motor 24 drives the cutting blade 25 to rotate. Motor 24 is fixedly connected to U-shaped frame 23. A lead screw 28 is rotatably connected to one side of U-shaped frame 23. The lead screw 28 is threadedly connected to nut 29. Nut 29 is fixedly connected to fixed frame 10. The lead screw 28 passes through nut 29 and extends out of fixed frame 10. Rotating the lead screw 28 causes it to rotate on nut 29, thereby driving U-shaped frame 23 to move. Slider 26 is fixedly connected to both sides of U-shaped frame 23. Slider 26 is slidably connected to slide rail 27. Slide rail 27 is fixedly connected to fixed frame 10. The movement of U-shaped frame 23 is limited by slider 26 and slide rail 27. Rubber roller 22 is rotatably connected to fixed shaft 21 at both ends. Fixed shaft 21 is fixedly connected to arc-shaped notch 12. Rubber roller 22 rotates within fixed shaft 21, thus facilitating rolling on the annular wall.

[0027] In this embodiment, the arc-shaped notch 12 is brought close to the annular wall, the rubber roller 22 is attached to the annular wall, and then the lead screw 28 is adjusted. The rotation of the lead screw 28 pushes the U-shaped frame 23, the slider 26 slides in the slide rail 27, the cutting blade 25 is brought close to the annular wall, the motor 24 is started, the motor 24 drives the lead screw 28 to rotate, thereby cutting the surface of the annular wall. By controlling the lead screw 28 to continue rotating, different depths can be cut. The setting of multiple rubber rollers 22 can adapt to annular walls of different sizes.

[0028] Example 2

[0029] Please see Figure 1 and Figure 3Embodiment 2 is described, including a fixing component 30 comprising a one-way bearing 31. The one-way bearing 31 has the characteristic of unidirectional rotation, which can prevent rotation during fixing and thus avoid slippage, and also facilitates resetting. A sliding rod 32 is slidably connected inside the one-way bearing 31. The sliding rod 32 slides within the one-way bearing 31 and can adapt to annular walls of different diameters. An electric telescopic rod 33 is fixedly connected to one side of the sliding rod 32. The electric telescopic rod 33 is also used to adapt to annular walls of different diameters. An arc-shaped rod 34 is fixedly connected to one end of the electric telescopic rod 33. The arc-shaped rod 34 can ensure the contact area with the annular wall. The length of the arc-shaped rod 34 should not be less than two-thirds of the length of the fixing frame 10. The sliding rod 32 is a square tube, and the one-way bearing 31 is correspondingly provided with a square slot. The square tube design can prevent rolling.

[0030] In this embodiment, the slide rod 32 slides in the one-way bearing 31, which can adapt to annular walls of different diameters. Then, the electric telescopic rod 33 is extended, and the slide rod 32 is rotated. The slide rod 32 rotates on the one-way bearing 31, and the arc rod 34 is locked on the other side of the annular wall. A U-shaped buckle structure is formed between the arc rod 34 and the rubber roller 22. The force of both is inward, so that the device can be locked on the annular wall, reducing the physical strength of the workers.

Claims

1. A manual cutting device for a ring-shaped wall, including a fixing frame (10), characterized in that: The fixing frame (10) is provided with an arc-shaped notch (12), and a cutting component (20) is provided at the arc-shaped notch (12). Side plates (13) are fixedly connected to both sides of the fixing frame (10), and fixing components (30) are provided on each side plate (13). A handle (11) is fixedly connected to the side of the fixing frame (10) away from the arc-shaped notch (12). The cutting assembly (20) includes rubber rollers (22) arranged in an arc shape on an arc-shaped notch (12), and a cutting blade (25) is disposed in the middle of a plurality of the rubber rollers (22), and the cutting blade (25) is fixedly connected to the output end of the motor (24).

2. A ring type wall body manual cutting device according to claim 1, characterized in that: The motor (24) is fixedly connected to the U-shaped frame (23). A lead screw (28) is rotatably connected to one side of the U-shaped frame (23). The lead screw (28) is threadedly connected to the nut (29). The nut (29) is fixedly connected to the fixed frame (10). The lead screw (28) passes through the nut (29) and extends out of the fixed frame (10).

3. A ring-type wall body manual cutting device according to claim 2, characterized in that: Both sides of the U-shaped frame (23) are fixedly connected to sliders (26), the sliders (26) are slidably connected in the slide rail (27), and the slide rail (27) is fixedly connected in the fixed frame (10).

4. The ring-type wall body manual cutting device according to claim 1, characterized by: The two ends of the rubber roller (22) are rotatably connected to the fixed shaft (21), and the fixed shaft (21) is fixedly connected to the arc-shaped notch (12).

5. The ring-type wall body manual cutting apparatus according to claim 1, characterized by: The fixing component (30) includes a one-way bearing (31), a slide rod (32) is slidably connected inside the one-way bearing (31), an electric telescopic rod (33) is fixedly connected to one side of the slide rod (32), and an arc rod (34) is fixedly connected to one end of the electric telescopic rod (33).

6. The ring-type wall body manual cutting apparatus according to claim 5, characterized by: The slide bar (32) is a square tube, and the one-way bearing (31) is provided with a square slot.

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