A handheld electric cutting tool

Abstract

The present invention relates to the technical field of cutting equipment, and in particular to a handheld electric cutting tool, comprising a body and a head, the left end of the body is fixedly connected to the head, the outer wall of the head is provided with a grip adjustment device, the lower end of the head is fixedly connected to an arc plate, the lower end of the arc plate is provided with a protective device, the lower end of the arc plate is fixedly connected to a circular plate, the outer wall of the circular plate is provided with an auxiliary positioning device, through the cooperation of the grip adjustment device and the head, the operator turns the bolt again to make one end of the bolt clamped with the groove of the outer wall of the groove ring again, so that the position of the base is fixed, and the angle of the handle relative to the head can be adjusted, so that the operator can adjust the angle of the blade without changing the position of both hands, so that the operator can adapt to cutting positions at more angles when cutting, and the grip is more convenient, so that the cutting is more stable, and the cutting effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cutting equipment, in particular to a handheld electric cutting tool. Background Art

[0002] Electric handheld cutting machines are suitable for building decoration, stone processing, cutting and grooving of non-metallic brittle materials containing silicates such as terrazzo, marble, granite, glass, cement board, etc. It has the advantages of high cutting efficiency, good processing quality, easy use and low labor intensity. Handheld electric cutting tools include electric cutters and angle grinders. It is well known that compared with traditional hand tools, handheld electric tools can complete work tasks faster and more accurately.

[0003] Firstly, when the existing handheld electric cutting equipment is used for cutting, the operator is required to hold the equipment with both hands to ensure the stability during cutting. When the position where the object to be cut is relatively hidden, the operator needs to adjust the holding angle. The inconvenient holding angle will lead to poor holding stability during cutting, resulting in poor cutting effect.

[0004] At the same time, the existing handheld electric cutting equipment is not convenient for protecting the cutting disc during cutting operations. After the power of the handheld electric cutting equipment is cut off, the cutter disc will continue to rotate for a period of time under the action of inertia before stopping. The existing equipment is not convenient for wrapping and protecting the cutter disc, resulting in the risk of injuring the operator when the handheld cutting equipment in the prior art rotates under the action of inertia, resulting in reduced safety.

[0005] Secondly, when the existing handheld electric cutting equipment is used for cutting, after the blade is wrapped for protection, the protective cover needs to be removed when it is used, which makes it inconvenient for the operator to use it. The operator needs to adjust the operation for a long time when using it, which makes it inconvenient for the operator to use it. Summary of the invention

[0006] The purpose of the present invention is to solve the problems of poor cutting effect caused by poor holding stability, inconvenience in wrapping and protecting the blade, reduced safety and inconvenience in adjustment, and to propose a handheld electric cutting tool.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A handheld electric cutting tool is designed, comprising a body and a head, the left end of the body is fixedly connected to the head, the outer wall of the head is provided with a grip adjustment device, the lower end of the head is fixedly connected to an arc plate, the lower end of the arc plate is provided with a protective device, the lower end of the arc plate is fixedly connected to a circular plate, the outer wall of the circular plate is provided with an auxiliary positioning device, the right end of the body is fixedly connected to a power cord, and the outer wall of the body is symmetrically provided with dust-proof air inlets.

[0009] Preferably, the protective device includes a slider, a round block, a slide bar, a magnet, a rotating plate and a straight plate;

[0010] The upper end of the sliding rod is fixedly connected to the arc plate, the outer wall of the sliding rod is fixedly connected to a magnet, the lower end of the magnet is magnetically connected to the slider, the slider is slidably connected to the sliding rod through a through hole opened on the surface, the lower end of the sliding rod is fixedly connected to a round block, one end of the slider is movably connected to the rotating plate through a pin shaft, and the outer wall of the magnet is fixedly connected to a straight plate.

[0011] Preferably, both ends of the straight plate are fixedly connected to a horizontal plate, and one end of the horizontal plate on both sides is fixedly connected to a block.

[0012] Preferably, the auxiliary positioning device comprises a round rod, a spring, a connecting block, a sleeve block and a straight rod;

[0013] The connecting block is movably connected to the circular plate through a pin shaft, the outer wall of the connecting block is fixedly connected to a round rod, the outer wall of the round rod is slidably connected to the sleeve block, one side of the sleeve block and the protruding part of the round rod are respectively fixedly connected to the two ends of the spring, the outer wall of the sleeve block is fixedly connected to a straight rod, and one end of the straight rod is movably connected to the rotating plate through a bearing.

[0014] Preferably, the main shaft of the machine head is fixedly connected to the cutter disc, and the block is tightly pressed against the rotating plate.

[0015] Preferably, the grip adjustment device comprises a handle, a vertical plate, a base, a support plate, a bolt, a bent plate and a groove ring;

[0016] The groove ring is fixedly connected to the outer wall of the machine head, the lower end of the base is fitted with the groove ring, both ends of the base are fixedly connected with support plates, the support plates on both sides are fixedly connected with bent plates, the bent plates are slidably connected to the groove ring, both sides of the upper end of the base are fixedly connected with vertical plates, the vertical plates are respectively fixedly connected to the two ends of the handle, the outer wall of the handle is provided with a rubber sleeve, the base is threadedly connected to the bolt through a threaded through hole opened on the surface, one end of the bolt passes through the base, and one end of the bolt is clamped with the groove opened on the outer wall of the groove ring.

[0017] Preferably, one end of the rotating plate is fixedly connected to a protective cover via a bolt, and an inner wall of the protective cover fits with one end of the main shaft of the machine head.

[0018] Preferably, the initial angle of the round rod is 30°, and the rotation angle of the round rod is 60°.

[0019] Preferably, the main shaft of the machine head is fixedly connected to the cutter disc via a nut, and the inner wall diameter of the protective cover is larger than the cutter disc.

[0020] Preferably, the outer wall of the power cord is sleeved with a rubber sleeve, and one end of the rubber sleeve is fixedly connected to the body.

[0021] The handheld electric cutting tool proposed by the present invention has the beneficial effect that: through the cooperation of the gripping adjustment device and the machine head, when the cutting position of the workpiece is relatively inconvenient, the operator rotates the bolt to make the bolt move upward inside the base, so that one end of the bolt is no longer clamped by the groove opened on the outer wall of the groove ring. The operator holds the handle plate to move the base, so that the base can drive the bent plate to slide in the grooves on both sides of the groove ring through the support plates on both sides, so that the position of the base on the surface of the groove ring can be adjusted. When the adjustment is completed, the operator rotates the bolt again to make one end of the bolt clamped with the groove of the outer wall of the groove ring again, so that the position of the base is fixed. By adjusting the angle of the handle relative to the machine head, the operator can adjust the angle of the cutter disc without changing the position of both hands, so that the operator can adapt to cutting positions at more angles when cutting, and the grip is more convenient, making the cutting more stable and improving the cutting effect.

[0022] Through the cooperation of the protective device, the protective cover and the auxiliary positioning device, when the cutting is completed, the cutter disc is stopped, and the cutter disc will continue to rotate under the action of inertia. The operator pulls the slider downward to make the slider out of the magnetic force range of the magnet. The slider moves to the position where the lower end fits the upper end of the round block and then stops moving. At the same time, the slider can drive the sleeve block to move synchronously through the straight rod, so that the sleeve block can drive the rotating plate to move downward. While the rotating plate moves, the spring can be stretched through the sleeve block. The operator pulls the rotating plate so that the rotating plate can be flipped 180°, so that the rotating plate can drive the protective cover to move to the bottom of the cutter disc, and pushes the rotating plate upward so that the slider can be magnetically connected with the magnetic block again. Then, the protective cover can be put on the outside of the cutter disc to prevent the continued rotation of the cutter disc from accidentally injuring the operator. The rotating plate rotates to a position that is tightly against the block on the other side. While the rotating plate rotates, the round rod can be driven to move synchronously through the sleeve block. When the round rod rotates, the spring is gradually stretched. When the round rod rotates past the vertical state, the spring pulls the rotating plate upward through the sleeve block, so that the rotating plate can move upward to a position that is tightly against the surface of the block. Under the pull of the spring, the position of the rotating plate can be fixed, and the cutter disc can be quickly wrapped so that the cutter disc is inside the protective cover when it rotates, which can effectively prevent the cutter disc from rotating and injuring people after power failure, thereby improving safety.

[0023] By the cooperation of the auxiliary positioning device, the protective device and the arc plate, the operator pulls the rotating plate so that the rotating plate can be flipped 180°, so that the rotating plate can drive the protective cover to move to the bottom of the knife disc, and push the rotating plate upward so that the slider can be magnetically connected with the magnetic block again. At the same time, the protective cover can be sleeved on the outside of the knife disc to prevent the knife disc from continuing to rotate and accidentally injuring the operator. The rotating plate rotates to a position that is tightly against the block on the other side. While the rotating plate rotates, the round rod can be driven to move synchronously through the sleeve block. When the round rod rotates, the spring will gradually stretch the spring. After the round rod rotates through the vertical state, the spring will pull the rotating plate upward through the sleeve block, so that the rotating plate can move upward to a position that is tightly against the surface of the block. Under the pull of the spring, the position of the rotating plate can be fixed. When it needs to be opened, the protective cover can be opened according to the above-mentioned reverse operation, and the rotating plate can be pulled by the spring for quick positioning, so that the present invention can be more convenient when adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the appearance structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 Schematic diagram of rear view state;

[0026] Figure 3 For the present invention Figure 1 Schematic diagram of the upward-looking state;

[0027] Figure 4For the present invention Figure 1 Schematic diagram of the middle protective cover in the open state;

[0028] Figure 5 For the present invention Figure 1 A schematic diagram of the upward-looking state of the middle protective cover being opened;

[0029] Figure 6 For the present invention Figure 1 A schematic diagram of a rear view of the middle protective cover in an open state;

[0030] Figure 7 For the present invention Figure 1 Schematic diagram of the auxiliary positioning device;

[0031] Figure 8 For the present invention Figure 1 Schematic diagram of the auxiliary positioning device in the upward view.

[0032] In the figure: 1, machine body, 2, grip adjustment device, 201, handle, 202, vertical plate, 203, base, 204, support plate, 205, bolt, 207, groove ring, 206, bent plate, 3, machine head, 4, dust-proof air inlet, 5, power cord, 6, knife disc, 7, protective cover, 8, auxiliary positioning device, 801, round rod, 802, spring, 803, connecting block, 804, sleeve block, 805, straight rod, 9, protective device, 901, slider, 902, round block, 903, slide bar, 904, magnet, 905, rotating plate, 906, straight plate, 10, square block, 11, arc plate, 12, round plate, 13, horizontal plate. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings:

[0034] See attached Figure 1-8 In the present embodiment, a handheld electric cutting tool includes a body 1 and a head 3. The left end of the body 1 is fixedly connected to the head 3. Both the body 1 and the head 3 are structures of an angle grinder. A grip adjustment device 2 is provided on the outer wall of the head 3. A circular arc plate 11 is fixedly connected to the lower end of the head 3. A protective device 9 is provided on the lower end of the circular arc plate 11. A circular plate 12 is fixedly connected to the lower end of the circular arc plate 11. An auxiliary positioning device 8 is provided on the outer wall of the circular plate 12. A power cord 5 is fixedly connected to the right end of the body 1. Dust-proof air inlets 4 are symmetrically provided on the outer wall of the body 1. The dust-proof air inlets 4 can dissipate heat inside the body 1.

[0035] The protection device 9 includes a slider 901, a round block 902, a slide bar 903, a magnet 904, a rotating plate 905 and a straight plate 906;

[0036] The upper end of the slide bar 903 is fixedly connected to the arc plate 11, and the outer wall of the slide bar 903 is fixedly connected to a magnet 904, and the lower end of the magnet 904 is magnetically connected to the slider 901. The magnet 904 can adsorb the slider 901 so that the height position of the slider 901 can be fixed. The slide bar 903 can be made of stainless steel or other materials that are not adsorbed by the magnet 904. The slider 901 is slidably connected to the slide bar 903 through a through hole opened on the surface, and the lower end of the slide bar 903 is fixedly connected to a round block 902, which can prevent the slider 901 from detaching from the slide bar 903. The materials of the slide bar 903, the round block 902 and the straight plate 906 are the same. One end of the slider 901 is movably connected to the rotating plate 905 through a pin shaft, and the outer wall of the magnet 904 is fixedly connected to the straight plate 906.

[0037] Through the cooperation of the protective device 9, the protective cover 7 and the auxiliary positioning device 8, when the cutting is completed, the knife disc 6 is stopped. Under the action of inertia, the knife disc 6 will continue to rotate. The operator pulls the slider 901 downward to make the slider 901 out of the magnetic force range of the magnet 904. The slider 901 moves to the position where the lower end is in contact with the upper end of the round block 902 and then stops moving. At the same time, the slider 901 can drive the sleeve block 804 to move synchronously through the straight rod 805, so that the sleeve block 804 can drive the rotating plate 905 to move downward. While the rotating plate 905 moves, the spring 802 can be stretched through the sleeve block 804. The operator pulls the rotating plate 905 so that the rotating plate 905 can flip 180°, so that the rotating plate 905 can drive the protective cover 7 to move to the bottom of the knife disc 6, and pushes the rotating plate 905 upward so that the slider 901 can be in contact with the magnet again. The block 904 is magnetically connected, and the protective cover 7 can be put on the outside of the knife disc 6 to prevent the continued rotation of the knife disc 6 from accidentally injuring the operator. The rotating plate 905 rotates to a position that is tightly against the block 10 on the other side. While the rotating plate 905 is rotating, the sleeve block 804 can drive the round rod 801 to move synchronously. When the round rod 801 rotates, it will gradually stretch the spring 802. When the round rod 801 rotates through the vertical state, the spring 802 pulls the rotating plate 905 upward through the sleeve block 804, so that the rotating plate 905 can move upward to a position that is tightly against the surface of the block 10. Under the pull of the spring 802, the position of the rotating plate 905 can be fixed, and the knife disc 6 can be quickly wrapped so that the knife disc 6 is inside the protective cover 7 when it rotates, which can effectively prevent the knife disc 6 from rotating and injuring people after power failure, thereby improving safety.

[0038] Both ends of the straight plate 906 are fixedly connected with the transverse plates 13 , and one end of the transverse plates 13 on both sides is fixedly connected with the blocks 10 . The blocks 10 on both sides can limit the rotation angle of the rotating plate 905 .

[0039] The auxiliary positioning device 8 includes a round rod 801, a spring 802, a connecting block 803, a sleeve block 804 and a straight rod 805;

[0040] The connecting block 803 is movably connected to the circular plate 12 through a pin shaft to fix the rotation center of the connecting block 803. The outer wall of the connecting block 803 is fixedly connected to a round rod 801. The outer wall of the round rod 801 is slidably connected to the sleeve block 804. The sleeve block 804 can slide on the outer wall of the round rod 801. One side of the sleeve block 804 and the protruding part of the round rod 801 are respectively fixedly connected to the two ends of the spring 802. The elastic coefficient of the spring 802 can meet the working needs according to actual needs. The spring 802 can pull the sleeve block 804 to move. The outer wall of the sleeve block 804 is fixedly connected to a straight rod 805. One end of the straight rod 805 is movably connected to the rotating plate 905 through a bearing.

[0041] Through the cooperation of the auxiliary positioning device 8, the protective device 9 and the arc plate 11, the operator turns the rotating plate 905 so that the rotating plate 905 can be turned 180 degrees, so that the rotating plate 905 can drive the protective cover 7 to move to the bottom of the cutter disc 6, and push the rotating plate 905 upward so that the slider 901 can be magnetically connected with the magnetic block 904 again. At the same time, the protective cover 7 can be sleeved on the outside of the cutter disc 6 to prevent the continued rotation of the cutter disc 6 from accidentally injuring the operator. The rotating plate 905 is rotated to a position that is tightly against the block 10 on the other side. While the rotating plate 905 is rotating, the sleeve block 804 can be used to drive the circular The rod 801 moves synchronously. When the round rod 801 rotates, it will gradually stretch the spring 802. After the round rod 801 rotates past the vertical state, the spring 802 pulls the rotating plate 905 upward through the sleeve block 804, so that the rotating plate 905 can move upward to a position close to the surface of the block 10. Under the pull of the spring 802, the position of the rotating plate 905 can be fixed. When it needs to be opened, the protective cover 7 can be opened according to the above-mentioned reverse operation. The rotating plate 905 can be pulled by the spring 802 for quick positioning, making the present invention more convenient when adjusting.

[0042] The main shaft of the machine head 3 is fixedly connected to the cutter disc 6 , and the block 10 is tightly pressed against the rotating plate 905 .

[0043] The grip adjustment device 2 includes a handle 201, a vertical plate 202, a base 203, a support plate 204, a bolt 205, a bent plate 206 and a groove ring 207;

[0044] The groove ring 207 is fixedly connected to the outer wall of the machine head 3, and the lower end of the base 203 is fitted with the groove ring 207. Both ends of the base 203 are fixedly connected with support plates 204, and the support plates 204 on both sides are fixedly connected with bent plates 206. The bent plates 206 are slidably connected to the groove ring 207. The bent plates 206 on both sides can support the support plates 204 on both sides to slide in the grooves of the outer wall of the groove ring 207. Both sides of the upper end of the base 203 are fixedly connected with vertical plates 202, and the vertical plates 202 are respectively fixedly connected to the two ends of the handle 201. The outer wall of the handle 201 is provided with a rubber sleeve, which can enable the operator to hold it to prevent sliding. The base 203 is threadedly connected to the bolt 205 through a threaded through hole opened on the surface. The part where the bolt 205 is clamped with the groove ring 207 is not provided with a thread. One end of the bolt 205 passes through the base 203, and one end of the bolt 205 is clamped with the groove opened on the outer wall of the groove ring 207.

[0045] By holding the adjustment device 2 and the machine head 3, when the cutting position of the workpiece is inconvenient, the operator rotates the bolt 205 to make the bolt 205 move upward inside the base 203, so that one end of the bolt 205 is no longer engaged with the groove opened on the outer wall of the groove ring 207. The operator holds the handle 201 to move the base 203, so that the base 203 can drive the bent plate 206 to slide in the grooves on both sides of the groove ring 207 through the support plates 204 on both sides, so that the position of the base 203 on the surface of the groove ring 207 can be adjusted. When the adjustment is completed, the operator rotates the bolt 205 again to make one end of the bolt 205 engage with the groove of the outer wall of the groove ring 207 again, so that the position of the base 203 is fixed. By adjusting the angle of the handle 201 relative to the machine head 3, the operator can adjust the angle of the knife disc 6 without changing the position of both hands, so that the operator can adapt to cutting positions at more angles when cutting, thereby improving the cutting effect.

[0046] One end of the rotating plate 905 is fixedly connected to the protective cover 7 by a bolt, and the inner wall of the protective cover 7 is in contact with one end of the main shaft of the machine head 3, so that the protective cover 7 can wrap the cutter disc 6 inside.

[0047] The initial angle of the round rod 801 is 30°, and the rotation angle of the round rod 801 is 60°. The limit angles of rotation of the round rod 801 are symmetrically arranged, so that the rotating plate 905 can be rotated to the position of being pressed against the blocks 10 on both sides.

[0048] The main shaft of the machine head 3 is fixedly connected to the cutter disc 6 via a nut, and the inner wall diameter of the protective cover 7 is larger than that of the cutter disc 6 .

[0049] The outer wall of the power cord 5 is sleeved with a rubber sleeve, one end of which is fixedly connected to the fuselage 1. The rubber sleeve can prevent the connection between the power cord 5 and the fuselage 1 from breaking due to dragging.

[0050] Working principle:

[0051] When using hand-held power cutting tools:

[0052] Adjustment process:

[0053] When the cutting position of the workpiece is inconvenient, the operator turns the bolt 205 to make the bolt 205 move upward inside the base 203, so that one end of the bolt 205 is no longer engaged with the groove opened on the outer wall of the groove ring 207. The operator holds the handle 201 to move the base 203, so that the base 203 can drive the bent plate 206 to slide in the grooves on both sides of the groove ring 207 through the support plates 204 on both sides, so that the position of the base 203 on the surface of the groove ring 207 can be adjusted. When the adjustment is completed, the operator turns the bolt 205 again to make one end of the bolt 205 engage with the groove on the outer wall of the groove ring 207 again, so that the position of the base 203 is fixed.

[0054] Cutting process:

[0055] The operator holds the handle 201 and the body 1 with both hands respectively, controls the head 3 to work, and works through the head 3 so that the spindle part of the head 3 can drive the cutter disc 6 to rotate, so that the cutter disc 6 can rotate quickly. After the operator moves the cutter disc 6 to the position where the workpiece needs to be cut, it can perform the cutting operation.

[0056] Protection process:

[0057] When the cutting is completed, the knife disc 6 is stopped and the knife disc 6 continues to rotate under the action of inertia. The operator pulls the slider 901 downward to make the slider 901 out of the magnetic force range of the magnet 904 (the slider 901 can be iron or other materials that can be adsorbed by the magnet 904). The slider 901 moves to the position where the lower end is in contact with the upper end of the round block 902 and then stops moving. At the same time, the slider 901 can drive the sleeve block 804 to move synchronously through the straight rod 805, so that the sleeve block 804 can drive the rotating plate 905 to move downward. While the rotating plate 905 moves, the spring 802 can be stretched through the sleeve block 804. The operator pulls the rotating plate 905 so that the rotating plate 905 can flip 180°, so that the rotating plate 905 can drive the protective cover 7 to move to the bottom of the knife disc 6, pushing the rotating plate upward. Plate 905 allows the slider 901 to be magnetically connected to the magnet block 904 again, and the protective cover 7 can be sleeved on the outside of the knife disc 6 to prevent the continued rotation of the knife disc 6 from accidentally injuring the operator. The rotating plate 905 rotates to a position that is tightly against the block 10 on the other side. While the rotating plate 905 is rotating, the sleeve block 804 can drive the round rod 801 to move synchronously. When the round rod 801 rotates, it will gradually stretch the spring 802. After the round rod 801 rotates past the vertical state, the spring 802 pulls the rotating plate 905 upward through the sleeve block 804, so that the rotating plate 905 can move upward to a position that is tightly against the surface of the block 10. Under the pull of the spring 802, the position of the rotating plate 905 can be fixed. When it needs to be opened, the protective cover 7 can be opened according to the above reverse operation.

[0058] Although the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A handheld electric cutting tool, comprising a body (1) and a head (3), wherein the left end of the body (1) is fixedly connected to the head (3), characterized in that: The outer wall of the machine head (3) is provided with a grip adjustment device (2); the lower end of the machine head (3) is fixedly connected to a circular plate (11); the lower end of the circular plate (11) is provided with a protective device (9); the lower end of the circular plate (11) is fixedly connected to a circular plate (12); the outer wall of the circular plate (12) is provided with an auxiliary positioning device (8); the right end of the machine body (1) is fixedly connected to a power cord (5); and the outer wall of the machine body (1) is symmetrically provided with dustproof air inlets (4); The protective device (9) comprises a sliding block (901), a round block (902), a sliding rod (903), a magnet (904), a rotating plate (905) and a straight plate (906); The upper end of the slide bar (903) is fixedly connected to the arc plate (11); the outer wall of the slide bar (903) is fixedly connected to a magnet (904); the lower end of the magnet (904) is magnetically connected to the slider (901); the slider (901) is slidably connected to the slide bar (903) via a through hole provided on the surface; the lower end of the slide bar (903) is fixedly connected to a round block (902); one end of the slider (901) is movably connected to a rotating plate (905) via a pin shaft; and the outer wall of the magnet (904) is fixedly connected to a straight plate (906); Both ends of the straight plate (906) are fixedly connected to a transverse plate (13), and one end of the transverse plate (13) on both sides is fixedly connected to a square block (10); The auxiliary positioning device (8) comprises a round rod (801), a spring (802), a connecting block (803), a sleeve block (804) and a straight rod (805); The connecting block (803) is movably connected to the circular plate (12) via a pin shaft; the outer wall of the connecting block (803) is fixedly connected to a round rod (801); the outer wall of the round rod (801) is slidably connected to a sleeve block (804); one side of the sleeve block (804) and a protruding portion of the round rod (801) are respectively fixedly connected to two ends of a spring (802); the outer wall of the sleeve block (804) is fixedly connected to a straight rod (805); one end of the straight rod (805) is movably connected to a rotating plate (905) via a bearing; The main shaft of the machine head (3) is fixedly connected to the cutter disc (6), and the block (10) is tightly abutted against the rotating plate (905); One end of the rotating plate (905) is fixedly connected to the protective cover (7) via bolts, and the inner wall of the protective cover (7) is in contact with one end of the main shaft of the machine head (3).

2. A handheld electric cutting tool according to claim 1, characterized in that: The grip adjustment device (2) comprises a handle (201), a vertical plate (202), a base (203), a support plate (204), a bolt (205), a bent plate (206) and a groove ring (207); The groove ring (207) is fixedly connected to the outer wall of the machine head (3); the lower end of the base (203) is fitted with the groove ring (207); both ends of the base (203) are fixedly connected to support plates (204); both sides of the support plates (204) are fixedly connected to bent plates (206); the bent plates (206) are slidably connected to the groove ring (207); both sides of the upper end of the base (203) are fixedly connected to vertical plates (202); the vertical plates (202) are respectively fixedly connected to the two ends of the handle (201); the outer wall of the handle (201) is provided with a rubber sleeve; the base (203) is threadedly connected to a bolt (205) through a threaded through hole provided on the surface; one end of the bolt (205) passes through the base (203); and one end of the bolt (205) is clamped with a groove provided on the outer wall of the groove ring (207).

3. A handheld electric cutting tool according to claim 1, characterized in that: The initial angle of the round rod (801) is 30°, and the rotatable angle of the round rod (801) is 60°.

4. A handheld electric cutting tool according to claim 1, characterized in that: The main shaft of the machine head (3) is fixedly connected to the cutter disc (6) via a nut, and the inner wall diameter of the protective cover (7) is larger than the cutter disc (6).

5. A handheld electric cutting tool according to claim 1, characterized in that: The outer wall of the power cord (5) is sleeved with a rubber sleeve, and one end of the rubber sleeve on the outer wall of the power cord (5) is fixedly connected to the fuselage (1).

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