Portable guide rail manual scratching knife with pressing wheel

Abstract

The utility model discloses a portable guide rail manual knife with a pinch roller, which comprises a guide rail (1), a sucker component (2) arranged on one side of the guide rail (1), a knife flywheel (3) arranged on the other side of the guide rail (1), a hand sliding knife component (16) arranged on the upper side of the guide rail (1), a knife rest plate (5) arranged on the upper side of the sliding plate (4), and a pressure roller arranged on the knife rest plate (5). The front side of the knife rest plate (5) is rotationally connected with the sliding plate (4), the knife rest plate (5) is located on the upper side of the knife flywheel (3) and rotationally connected with the knife flywheel (3), a handle (6) is arranged on the rear side of the knife rest plate (5), and a pressing wheel (7) located on the upper side of the guide rail (1) is arranged on one side of the knife rest plate (5). The marking device has the advantages of being good in marking effect and long in service life.

Description

Technical Field

[0001] The utility model belongs to the field of portable guide rail manual cutting knives, and particularly relates to a portable guide rail manual cutting knife with a pressing wheel. Background Art

[0002] The existing portable guide rail manual cutting knife is mainly used for scribing and cutting tiles. Its structure includes a guide rail. One side of the guide rail is provided with a suction cup assembly, the other side of the guide rail is provided with a cutter wheel, and the upper side of the guide rail is provided with a hand sliding knife assembly. The hand sliding knife assembly includes a sliding plate connected to the guide rail. The upper side of the sliding plate is provided with a tool rest plate. The front side of the tool rest plate is rotatably connected to the sliding plate. The tool rest plate is located above the cutter wheel and is rotatably connected to the cutter wheel in the middle. The rear side of the tool rest plate is provided with a handle. Its using method is as follows: First, fix the position of the guide rail on the tile through the suction cup assembly, then press the tool rest plate through the handle to make the cutter wheel cut the surface of the tile, and then push the handle to make the cutter wheel move along the guide rail to complete scribing and cutting.

[0003] During the using process, it is found that since the guide rail is fixed to the tile only on one side through the suction cup assembly, when the cutter wheel cuts the tile, the tile gives a reaction force to the cutter wheel. When this reaction force exceeds a certain degree, it will cause the guide rail to arch upward, making the scribing of the cutter wheel not straight, the scribing effect is poor, and the cutter wheel will be damaged, reducing the service life.

[0004] Therefore, the existing portable guide rail manual cutting knife has the defects of poor scribing effect and low service life. Content of the Utility Model

[0005] The purpose of the utility model is to provide a portable guide rail manual cutting knife with a pressing wheel.

[0006] The utility model has the advantages of better scribing effect and longer service life.

[0007] The technical solution of the utility model: A portable guide rail manual cutting knife with a pressing wheel includes a guide rail. One side of the guide rail is provided with a suction cup assembly, the other side of the guide rail is provided with a cutter wheel, and the upper side of the guide rail is provided with a hand sliding knife assembly. The hand sliding knife assembly includes a sliding plate connected to the guide rail. The upper side of the sliding plate is provided with a tool rest plate. The front side of the tool rest plate is rotatably connected to the sliding plate. The tool rest plate is located above the cutter wheel and is rotatably connected to the cutter wheel. The rear side of the tool rest plate is provided with a handle. One side of the tool rest plate is provided with a pressing wheel located above the guide rail.

[0008] In the foregoing portable guide rail manual cutting knife with a pressing wheel, a hand wheel is provided on the sliding plate. Taking the cutter wheel as the coordinate origin, the long direction of the guide rail as the X axis, and the width direction of the guide rail as the Y axis, a two-dimensional coordinate system is established. The hand wheel and the handle are respectively located on both sides of the X axis, and the hand wheel and the handle are respectively located on both sides of the Y axis.

[0009] In the aforementioned portable guide rail manual cutter with a pressure wheel, a positioning pin is provided at the bottom of the tool rest plate, and a return spring passing through the positioning pin is provided between the sliding plate and the tool rest plate.

[0010] In the aforementioned portable guide rail manual cutter with a pressure wheel, a limiting waist-shaped hole matching with the positioning pin is provided on the top surface of the sliding plate.

[0011] In the aforementioned portable guide rail manual cutter with a pressure wheel, the cross-section of the tool rest plate is U-shaped, and both the left and right sides of the tool rest plate are rotationally connected to the sliding plate through dowel screws.

[0012] In the aforementioned portable guide rail manual cutter with a pressure wheel, a connecting block fixed to the tool rest plate is provided on one side of the pressure wheel. A long hole is provided on the connecting block. A pressure wheel screw passing through the pressure wheel is provided in the long hole. A pressure wheel nut is provided on the pressure wheel screw. A set screw is provided on the connecting block, and the inner end of the set screw enters the long hole downward.

[0013] Compared with the prior art, on the basis of the existing portable guide rail manual cutter, the following main improvements are made to the present utility model.

[0014] 1), A pressure wheel is added to the tool rest plate. When the cutter wheel cuts the ceramic tile, the guide rail is pressed tightly by the pressure wheel, overcoming the reaction force given by the ceramic tile to the cutter wheel, avoiding the upward arching of the guide rail, making the line drawn by the cutter wheel straight, and the line drawing effect is better. Moreover, the height of the pressure wheel is adjustable. By adjusting the pressure wheel to an appropriate position, the cutter wheel cuts the ceramic tile at a certain depth, avoiding the cutter wheel cutting too deep on the basis of ensuring sufficient line drawing depth of the ceramic tile, avoiding damage to the cutter wheel, and improving the service life.

[0015] 2), On the basis of the rotational connection between the tool rest plate and the sliding plate, a positioning pin is provided on the tool rest plate, and a limiting waist-shaped hole matching with the positioning pin is provided on the sliding plate. A triangular limit is formed between the tool rest plate and the sliding plate, avoiding the swing of the tool rest plate during the line drawing process, making the line drawing accurate, and the line drawing effect is better.

[0016] 3), A hand wheel is added to the sliding plate. When drawing a line, the downward pressure is jointly provided by the hand wheel and the handle, and the overall force on the hand-held cutter assembly is more balanced, which can further improve the line drawing accuracy, and the line drawing effect is better.

[0017] In summary, the present utility model has the advantages of better line drawing effect and longer service life. Brief Description of the Drawings

[0018] Figure 1 is an exploded view of the present utility model.

[0019] Figure 2 is an exploded view of some parts of the hand-held cutter assembly.

[0020] Figure 3 is a front view of the present utility model.

[0021] Figure 4 It is the front view of the hand-slip knife assembly.

[0022] Figure 5 It is the left view of the hand-slip knife assembly.

[0023] Figure 6 It is the top view of the hand-slip knife assembly.

[0024] The reference signs in the drawings are: 1 - guide rail, 2 - suction cup assembly, 3 - cutter wheel, 4 - sliding plate, 5 - tool rest plate, 6 - handle, 7 - pressure wheel, 8 - positioning pin, 9 - limit waist-shaped hole, 10 - dowel screw, 11 - connecting block, 12 - long hole, 13 - pressure wheel screw, 14 - pressure wheel nut, 15 - set screw, 16 - hand-slip knife assembly, 17 - dowel nut, 18 - return spring, 19 - gasket, 20 - hand wheel, 21 - ceramic tile. Detailed implementation manners

[0025] The present utility model will be further described below in conjunction with the drawings and embodiments, but it shall not be used as a basis for limiting the present utility model.

[0026] Embodiment. A portable guide rail manual cutter with a pressure wheel, as Figure 1 shown, includes a guide rail 1. A suction cup assembly 2 is provided on the right side of the guide rail 1, a cutter wheel 3 is provided on the left side of the guide rail 1, and a hand-slip knife assembly is provided on the upper side of the guide rail 1. The hand-slip knife assembly includes a sliding plate 4 connected to the guide rail 1. A tool rest plate 5 is provided on the upper side of the sliding plate 4. The front side of the tool rest plate 5 is rotatably connected to the sliding plate 4. The tool rest plate 5 is located above the cutter wheel 3 and is rotatably connected to the cutter wheel 3. A handle 6 is provided on the rear side of the tool rest plate 5. The features are as follows:

[0027] As Figure 2 shown, the cross-section of the tool rest plate 5 is U-shaped. Both the left and right sides of the tool rest plate 5 are rotatably connected to the sliding plate 4 through dowel screws 10. The dowel screws 10 pass through the side wall of the tool rest plate 5 and are provided with dowel nuts 17.

[0028] A connecting block 11 extending downward is provided on the right side of the tool rest plate 5. A pressure wheel 7 located above the guide rail 1 is provided on the right side of the connecting block 11. The pressure wheel 7 can adopt a bearing. A long hole 12 is provided on the connecting block 11. A pressure wheel screw 13 passing through the pressure wheel 7 is provided in the long hole 12. A pressure wheel nut 14 is provided on the pressure wheel screw 13. A gasket 19 passed through by the pressure wheel screw 13 is further provided between the pressure wheel 7 and the connecting block 11. A set screw 15 is provided on the connecting block 11. The inner end of the set screw 15 extends downward into the long hole 12.

[0029] A handwheel 20 is provided on the left front side of the sliding plate 4. Taking the cutter wheel 3 as the coordinate origin, the longitudinal direction of the guide rail 1 as the X-axis, and the width direction of the guide rail 1 as the Y-axis, a two-dimensional coordinate system looking downwards is established. The handwheel 20 and the handle 6 are respectively located on both sides of the X-axis, and the handwheel 20 and the handle 6 are respectively located on both sides of the Y-axis.

[0030] A positioning pin 8 is provided at the bottom of the tool rest plate 5. A return spring 18 passing through the positioning pin 8 is provided between the sliding plate 4 and the tool rest plate 5, and the return spring 18 is a conical spring. A limiting waist-shaped hole 9 is provided on the top surface of the sliding plate 4, and the width of the limiting waist-shaped hole 9 is matched with the diameter of the positioning pin 8.

[0031] Usage method: Connect with the ceramic tile through the suction cup assembly 2. When no downward pressure is applied to the handle 6, the return spring 18 causes the tool rest plate 5 to flip upwards to prevent the cutter wheel 3 from contacting the ceramic tile. When scribing, press the handle 6 with one hand, and the positioning pin 8 enters the limiting waist-shaped hole 9 to form three-point positioning with the two setscrew 10s, preventing the tool rest plate 5 from swaying left and right, that is, preventing the cutter wheel 3 from swaying left and right. The cutter wheel 3 cuts the surface of the ceramic tile, and makes the pressing wheel 7 contact the surface of the ceramic tile. The height position of the pressing wheel 7 can be adjusted through the set screw 15, thereby changing the cutting depth of the cutter wheel 3, avoiding rapid wear caused by excessive cutting depth of the cutter wheel. At the same time, the pressing wheel 7 gives a downward pressure to the guide rail 1 to prevent the guide rail from arching upwards under the reaction force of the cutter wheel 3, making the tangent line of the cutter wheel straight and the scribing effect better. Further, press the handwheel 20 with the other hand. Since the handwheel 20 and the handle 6 are respectively on the front and rear sides of the cutter wheel 3 and on the left and right sides in the moving direction, the overall force of the hand-held knife assembly 16 is more balanced, and the scribing accuracy can be further improved.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

Claims

1. A portable guide rail manual knife with a pressure wheel, comprising a guide rail (1), a suction cup assembly (2) is provided on one side of the guide rail (1), a knife wheel (3) is provided on the other side of the guide rail (1), a hand-sliding knife assembly (16) is provided on the upper side of the guide rail (1), the hand-sliding knife assembly (16) comprises a sliding plate (4) connected to the guide rail (1), a knife holder plate (5) is provided on the upper side of the sliding plate (4), the front side of the knife holder plate (5) is rotatably connected to the sliding plate (4), the knife holder plate (5) is located on the upper side of the knife wheel (3) and is rotatably connected to the knife wheel (3), and a handle (6) is provided on the rear side of the knife holder plate (5), characterized in that: A pressure wheel (7) located on the upper side of the guide rail (1) is provided on one side of the tool holder plate (5).

2. The portable guide rail manual slicing knife with a pressure wheel according to claim 1, characterized in that: A hand wheel (20) is provided on the sliding plate (4), and a two-dimensional coordinate system is established with the cutter wheel (3) as the coordinate origin, the length direction of the guide rail (1) as the X axis, and the width direction of the guide rail (1) as the Y axis. The hand wheel (20) and the handle (6) are respectively located on both sides of the X axis, and the hand wheel (20) and the handle (6) are respectively located on both sides of the Y axis.

3. The portable guide rail manual slicing knife with a pressure wheel according to claim 1, characterized in that: A positioning pin (8) is provided at the bottom of the tool holder plate (5), and a return spring (18) passing through the positioning pin (8) is provided between the sliding plate (4) and the tool holder plate (5).

4. The portable guide rail manual slicing knife with a pressure wheel according to claim 3, characterized in that: A limiting waist-shaped hole (9) cooperating with the positioning pin (8) is provided on the top surface of the sliding plate (4).

5. The portable guide rail manual slicing knife with a pressure wheel according to claim 1, characterized in that: The cross section of the tool holder plate (5) is U-shaped, and the left and right sides of the tool holder plate (5) are rotatably connected to the sliding plate (4) through plug screws (10).

6. The portable guide rail manual slicing knife with a pressure wheel according to claim 1, characterized in that: A connecting block (11) fixed to the tool holder plate (5) is provided on one side of the pressure wheel (7), a long hole (12) is provided on the connecting block (11), a pressure wheel screw (13) passing through the pressure wheel (7) is provided in the long hole (12), a pressure wheel nut (14) is provided on the pressure wheel screw (13), a set screw (15) is provided on the connecting block (11), and the inner side end of the set screw (15) enters downward into the long hole (12).

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