Handheld cutting machine for building construction

Abstract

The utility model discloses a handheld cutting machine for building construction, which belongs to the technical field of handheld cutting machines for buildings, and adopts the technical scheme that the handheld cutting machine comprises a machine body, a protective cover is fixedly connected to the front side of the machine body, a connecting block is fixedly connected to the bottom of the machine body, a limiting mechanism is arranged at the bottom of the connecting block, and a shielding mechanism is arranged on the front side of the protective cover; the limiting mechanism comprises a limiting block, a limiting groove, a limiting plate, a limiting pad and a telescopic frame, the top of the limiting block is fixedly connected with the bottom of the connecting block, the bottom of the limiting block extends into the limiting groove and is slidably connected with the interior of the limiting groove, and the limiting groove is formed in the top of the limiting plate. The problems that an operator is difficult to keep a cutting blade perpendicular to a cutting face all the time, in the cutting process, tiny shaking of the hand can be amplified, the cutting face is uneven, movement of the cutting blade cannot be stably guided in the cutting process, and the cutting precision is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building handheld cutting machines, in particular to a handheld cutting machine for building construction. Background Art

[0002] A handheld cutting machine is a portable cutting tool widely used in construction, decoration, manufacturing and other fields.

[0003] When holding the shell handle to perform cutting operations, the cutting machine is heavy as a whole. When operating for a long time, the arm bears a heavy weight and is prone to fatigue.

[0004] The existing patent (publication number: CN207138992U) discloses a handheld cutting machine, including a shell, a saw blade and a transmission mechanism, the saw blade is located at the front end of the shell, the transmission mechanism is located in the shell and drives the saw blade to rotate, a support mechanism is installed on the shell, the support mechanism includes a sleeve, a guide column, a roller and a spring, the sleeve is connected to the shell, one end of the guide column is inserted into the sleeve and slides with the sleeve, the roller is rotatably installed at the other end of the guide column, the spring is located in the sleeve to elastically support the guide column, and the shell can be supported by arranging a support mechanism on the shell, which can reduce the arm load when operating the handheld cutting machine and improve the comfort of operation.

[0005] In response to the above problems, existing patents have provided solutions. However, the above solutions have certain limitations during use. The handheld cutting machine relies on manual hand-held operation, and it is difficult for the operator to always keep the cutting blade perpendicular to the cutting surface. During the cutting process, slight shaking of the hand will be magnified, resulting in an uneven cutting surface, and the movement of the cutting blade cannot be stably guided during cutting, thereby affecting the cutting accuracy.

[0006] Therefore, a handheld cutting machine for construction is proposed. Utility Model Content

[0007] The purpose of the utility model is to provide a handheld cutting machine for construction, which can solve the problem that the existing handheld cutting machines rely on manual hand-held operation, and the operator has difficulty in always keeping the cutting blade perpendicular to the cutting surface. During the cutting process, the slightest shaking of the hand will be magnified, resulting in an uneven cutting surface, and the movement of the cutting blade cannot be stably guided during cutting, thereby affecting the cutting accuracy.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a handheld cutting machine for construction, comprising a body, a protective cover fixedly connected to the front side of the body, a connecting block fixedly connected to the bottom of the body, a limiting mechanism provided at the bottom of the connecting block, and a shielding mechanism provided at the front side of the protective cover;

[0009] The limiting mechanism includes a limiting block, a limiting groove, a limiting plate, a limiting pad and a telescopic frame. The top of the limiting block is fixedly connected to the bottom of the connecting block, the bottom of the limiting block extends to the inside of the limiting groove and is slidably connected to the inside of the limiting groove, the limiting groove is opened at the top of the limiting plate, the top of the limiting plate contacts the bottom of the connecting block, the top of the limiting pad is fixedly connected to the top of the limiting plate, and the top of the telescopic frame extends to the inside of the limiting plate and is slidably connected to the inside of the limiting plate.

[0010] Preferably, the front side of the connecting block is fixedly connected to two connecting rods, the front sides of the connecting rods pass through the protective cover and extend to the front side of the protective cover, and the front sides of the connecting rods are fixedly connected to a protective plate.

[0011] Preferably, two mounting blocks are provided on the front side of the protective plate, and the front sides of the mounting blocks are fixedly connected with dust shields.

[0012] Preferably, four screws are provided on the front side of the mounting block, the rear sides of the screws pass through the mounting block and the protective plate in sequence and extend to the interior of the protective cover, and the surfaces of the screws are connected to the internal threads of the protective cover.

[0013] Preferably, the bottom of the limiting block is rotatably connected to a plurality of first rotating columns, and the surfaces of the first rotating columns are in contact with the bottom of the inner wall of the limiting groove.

[0014] Preferably, the front and rear sides of the limit block are fixedly connected to a positioning groove, and the front and rear sides of the inner wall of the limit groove are provided with a stop block and two second rotating columns, and the surface of the second rotating column contacts the inner wall of the positioning groove.

[0015] Preferably, the left side of the connecting block is fixedly connected to an iron block, the left side of the limiting plate is fixedly connected to a magnetic block, and the right side of the iron block is magnetically attracted to the left side of the magnetic block.

[0016] Preferably, a sealing sleeve is fixedly connected to the interior of the protective plate, and the interior of the sealing sleeve contacts the surface of the protective cover.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This application enables the limit plate to position the connecting block through the telescopic frame, and the limit plate is stabilized by the limit pad, so that the machine body can drive the limit block to move inside the limit groove through the connecting block, so that the machine body can be easily moved and cut stably;

[0019] 2. In this application, the dust baffle is driven by the mounting block to move the connecting rod, so that the rear side of the connecting rod passes through the protective cover and extends to the inside of the limit plate for limiting. This makes it convenient to fix the dust baffle and the protective plate by screws, thereby reducing the flying of dust and debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of the handheld cutting machine for construction of the utility model;

[0021] Figure 2 This is a three-dimensional connection diagram of the limiting mechanism in the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the bottom of the limiting block in the utility model;

[0023] Figure 4 This is a three-dimensional connection diagram of the shielding mechanism in the present utility model;

[0024] Figure 5 For this utility model Figure 2 A partial enlarged view of point A in the middle.

[0025] In the figure, 1. body; 2. limiting mechanism; 201. limiting block; 202. limiting groove; 203. limiting plate; 204. limiting pad; 205. telescopic frame; 3. shielding mechanism; 301. connecting rod; 302. mounting block; 303. screw; 304. dust shield; 305. protective plate; 4. connecting block; 5. protective cover; 6. first rotating column; 7. sealing sleeve; 8. block; 9. second rotating column; 10. magnetic block; 11. iron block; 12. positioning groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-5 , this utility model provides a technical solution:

[0028] A handheld cutting machine for construction, comprising a body 1, a protective cover 5 fixedly connected to the front side of the body 1, a connecting block 4 fixedly connected to the bottom of the body 1, a limiting mechanism 2 provided at the bottom of the connecting block 4, and a shielding mechanism 3 provided on the front side of the protective cover 5;

[0029] The limiting mechanism 2 includes a limiting block 201, a limiting groove 202, a limiting plate 203, a limiting pad 204 and a telescopic frame 205. The top of the limiting block 201 is fixedly connected to the bottom of the connecting block 4, the bottom of the limiting block 201 extends to the inside of the limiting groove 202 and is slidably connected to the inside of the limiting groove 202, the limiting groove 202 is opened at the top of the limiting plate 203, the top of the limiting plate 203 contacts the bottom of the connecting block 4, the top of the limiting pad 204 is fixedly connected to the top of the limiting plate 203, and the top of the telescopic frame 205 extends to the inside of the limiting plate 203 and is slidably connected to the inside of the limiting plate 203.

[0030] In this embodiment: by extending the top of the telescopic frame 205 to the inside of the limit plate 203 and slidingly connected to the inside of the limit plate 203, the limit plate 203 can be conveniently positioned on the connecting block 4 through the telescopic frame 205, and the top of the limit pad 204 is fixedly connected to the bottom of the limit plate 203, so that the body 1 can be stabilized by the limit pad 204, thereby facilitating the body 1 to drive the limit block 201 to move inside the limit groove 202 through the connecting block 4, so that the limit block 201 limits the body 1 through the limit groove 202, and the body 1 can be conveniently moved and cut stably.

[0031] Specifically, such as Figure 2 、 Figure 4 As shown, the front side of the connecting block 4 is fixedly connected to two connecting rods 301 , the front side of the connecting rods 301 passes through the protective cover 5 and extends to the front side of the protective cover 5 , and the front side of the connecting rods 301 is fixedly connected to a protective plate 305 .

[0032] Specifically, such as Figure 4 As shown, two mounting blocks 302 are provided on the front side of the protection plate 305 , and the front side of the mounting block 302 is fixedly connected to the dust shield 304 .

[0033] Specifically, such as Figure 1 、 Figure 2 、 Figure 4 As shown, four screws 303 are provided on the front side of the mounting block 302 , and the rear sides of the screws 303 pass through the mounting block 302 and the protective plate 305 in sequence and extend to the interior of the protective cover 5 , and the surfaces of the screws 303 are connected to the internal threads of the protective cover 5 .

[0034] In this embodiment, by connecting the surface of the screw 303 with the internal thread of the protective cover 5, the screw 303 can fix the protective plate 305 and the dust baffle 304 through the protective cover 5, thereby achieving the effect of fixing the protective plate 305 and the dust baffle 304.

[0035] Specifically, such as Figure 3 、 Figure 5As shown, the bottom of the limiting block 201 is rotatably connected to a plurality of first rotating columns 6 , and the surface of the first rotating columns 6 contacts the bottom of the inner wall of the limiting groove 202 .

[0036] Specifically, such as Figure 3 、 Figure 5 As shown, the front and rear sides of the limit block 201 are fixedly connected to the positioning groove 12, and the front and rear sides of the inner wall of the limit groove 202 are provided with a stop block 8 and two second rotating columns 9, and the surface of the second rotating column 9 is in contact with the inner wall of the positioning groove 12.

[0037] In this embodiment, by making the surface of the second rotating column 9 contact the inner wall of the positioning groove 12, the second rotating column 9 can position the limit block 201 through the positioning groove 12, thereby achieving the effect of positioning the limit block 201.

[0038] Specifically, such as Figure 5 As shown, the left side of the connecting block 4 is fixedly connected to the iron block 11 , the left side of the limiting plate 203 is fixedly connected to the magnetic block 10 , and the right side of the iron block 11 is magnetically attracted to the left side of the magnetic block 10 .

[0039] Specifically, such as Figure 1 、 Figure 4 As shown, the interior of the protective plate 305 is fixedly connected with a sealing sleeve 7 , and the interior of the sealing sleeve 7 is in contact with the surface of the protective cover 5 .

[0040] In this embodiment, by magnetically attracting the right side of the iron block 11 to the left side of the magnetic block 10 , the limiting plate 203 can be fixed to the iron block 11 by magnetism, thereby achieving the effect of fixing the connecting block 4 .

[0041] Working principle: When cutting through the machine body 1, the dust baffle 304 is driven by the mounting block 302 to move the connecting rod 301, so that the rear side of the connecting rod 301 passes through the protective cover 5 and extends to the inside of the limit plate 203 for limiting, so that the dust baffle 304 and the protective plate 305 are fixed by the screw 303, which can reduce the dust and debris from flying around, and the limit plate 203 can be conveniently positioned on the connecting block 4 through the telescopic frame 205, so that the limit plate 203 is stabilized by the limit pad 204, so that the machine body 1 can drive the limit block 201 to move inside the limit groove 202 through the connecting block 4. The limit block 201 moves inside the limit groove 202 through the first rotating column 6, so that the limit block 201 limits the body 1 through the limit groove 202, and the second rotating column 9 positions and moves the limit block 201 through the positioning groove 12. The stop block 8 is used to limit the body 1, so that the body 1 can be easily moved and cut stably, which solves the problem that the existing handheld cutting machine relies on manual hand-held operation, and it is difficult for the operator to always keep the cutting blade perpendicular to the cutting surface. During the cutting process, the slightest shaking of the hand will be magnified, resulting in an uneven cutting surface, and the movement of the cutting blade cannot be stably guided during cutting, thereby affecting the cutting accuracy.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A handheld cutting machine for construction, comprising a machine body (1), a protective cover (5) fixedly connected to the front side of the machine body (1), characterized in that: The bottom of the body (1) is fixedly connected to a connecting block (4), the bottom of the connecting block (4) is provided with a limiting mechanism (2), and the front side of the protective cover (5) is provided with a shielding mechanism (3); The limiting mechanism (2) comprises a limiting block (201), a limiting groove (202), a limiting plate (203), a limiting pad (204) and a telescopic frame (205); the top of the limiting block (201) is fixedly connected to the bottom of the connecting block (4); the bottom of the limiting block (201) extends to the inside of the limiting groove (202) and is slidably connected to the inside of the limiting groove (202); the limiting groove (202) is opened at the top of the limiting plate (203); the top of the limiting plate (203) contacts the bottom of the connecting block (4); the top of the limiting pad (204) is fixedly connected to the top of the limiting plate (203); and the top of the telescopic frame (205) extends to the inside of the limiting plate (203) and is slidably connected to the inside of the limiting plate (203).

2. A handheld cutting machine for construction according to claim 1, characterized in that: The front side of the connecting block (4) is fixedly connected to two connecting rods (301), the front side of the connecting rods (301) passes through the protective cover (5) and extends to the front side of the protective cover (5), and the front side of the connecting rods (301) is fixedly connected to a protective plate (305).

3. A handheld cutting machine for construction according to claim 2, characterized in that: Two mounting blocks (302) are provided on the front side of the protection plate (305), and a dust shield (304) is fixedly connected to the front side of the mounting block (302).

4. The handheld cutting machine for construction according to claim 3, characterized in that: Four screw rods (303) are provided on the front side of the mounting block (302), and the rear sides of the screw rods (303) pass through the mounting block (302) and the protective plate (305) in sequence and extend to the interior of the protective cover (5), and the surfaces of the screw rods (303) are connected to the internal threads of the protective cover (5).

5. The handheld cutting machine for construction according to claim 1, characterized in that: The bottom of the limiting block (201) is rotatably connected to a plurality of first rotating columns (6), and the surface of the first rotating columns (6) contacts the bottom of the inner wall of the limiting groove (202).

6. The handheld cutting machine for construction according to claim 1, characterized in that: The front and rear sides of the limit block (201) are fixedly connected to a positioning groove (12), and the front and rear sides of the inner wall of the limit groove (202) are provided with a stopper (8) and two second rotating columns (9), and the surface of the second rotating column (9) contacts the inner wall of the positioning groove (12).

7. The handheld cutting machine for construction according to claim 1, characterized in that: The left side of the connecting block (4) is fixedly connected to an iron block (11), the left side of the limiting plate (203) is fixedly connected to a magnetic block (10), and the right side of the iron block (11) is magnetically attracted to the left side of the magnetic block (10).

8. The handheld cutting machine for construction according to claim 2, characterized in that: A sealing sleeve (7) is fixedly connected to the interior of the protective plate (305), and the interior of the sealing sleeve (7) is in contact with the surface of the protective cover (5).

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