CN117697893A - Electric circular saw - Google Patents

Abstract

The invention discloses an electric circular saw, which relates to the technical field of electric tools and comprises a base, wherein the surface of the base is fixedly connected with an upper shell, the electric circular saw also comprises a connecting handle, the upper shell is rotationally connected with a lower shell through a fixed shaft of the connecting handle, a yielding cutting groove is arranged between the upper shell and the lower shell, and a radiating pipe is arranged on the surface of the upper shell; the upper surface of the base is fixedly connected with a driving shell, a driving motor is arranged in the driving shell, an output shaft of the driving motor is fixedly connected with a main shaft, the driving shell further comprises a fastening bolt, the main shaft is detachably connected with a saw blade through the fastening bolt, the upper surface of the driving shell is provided with a square handle, and the upper surface of the driving shell is further provided with a hand rest; through the cooperation of supplementary straight cutting part, angle adjusting part and degree of depth adjusting part, can guarantee when cutting timber that the saw bit can not take place the skew, can adjust ligneous cutting angle and depth of cut simultaneously to make electric circular saw can adapt to the cutting operation to multiple ligneous, the practicality is stronger.

Description

Electric circular saw

Technical Field

The invention relates to the technical field of electric tools, in particular to an electric circular saw.

Background

The electric circular saw is a tool which uses a single-phase series motor as power and drives a circular saw blade to carry out sawing operation through a transmission mechanism, and has the characteristics of safety, reliability, high working efficiency and the like; the electric circular saw adopts a lifting and climbing type appearance structure.

The electric circular saw has wide application in the cutting field due to the convenient use, labor saving and the like. In cutting some stone and wood, it is generally desirable that the cutting tool can cut along a predetermined trajectory, and thus a guide device suitable for the cutting tool is required to accurately guide the cutting tool to perform cutting.

At present, the guiding device on the existing electric circular saw is often positioned before cutting through the scale on the guiding ruler so as to ensure that the electric circular saw can cut linearly along a preset track, but when wood with different depths or different angles is required to be cut, the conventional electric circular saw cannot be adjusted, and can only judge the cutting depth and the cutting angle according to an operator, so that accurate cutting cannot be performed, and the practicability is lower.

Disclosure of Invention

The invention aims to provide an electric circular saw, which solves the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: the electric circular saw comprises a base, wherein an upper shell is fixedly connected to the surface of the base, the electric circular saw further comprises a connecting handle, the upper shell is fixedly connected with a lower shell through the connecting handle in a rotating mode, a yielding cutting groove is formed between the upper shell and the lower shell, and a radiating pipe is arranged on the surface of the upper shell;

the upper surface of the base is fixedly connected with a driving shell, a driving motor is arranged in the driving shell, an output shaft of the driving motor is fixedly connected with a main shaft, the driving shell further comprises a fastening bolt, the main shaft is detachably connected with a saw blade through the fastening bolt, the upper surface of the driving shell is provided with a square handle, and the upper surface of the driving shell is further provided with a hand rest;

an auxiliary straight cutting part for auxiliary cutting and an angle adjusting part for adjusting the cutting angle are arranged above the base;

and a depth adjusting part for adjusting the cutting depth.

Optionally, the auxiliary straight cutting component comprises a sliding sleeve fixedly connected to the upper surface of the base, and a guide rule is arranged below the sliding sleeve and is in sliding connection with the upper surface of the base;

still include first knob, the inside fixedly connected with threaded rod of first knob, the inside of sliding sleeve seted up with threaded notch one of threaded rod looks adaptation.

Optionally, the guide ruler further comprises a weldment, and the baffle is welded to the guide ruler through the weldment.

Optionally, the angle adjusting component comprises an angle adjusting ruler arranged above the base, an angle adjusting rail is arranged on the surface of the angle adjusting ruler, a first sliding rod is connected to the inner wall of the angle adjusting rail in a sliding manner, and a first threaded protrusion is arranged on the surface of the first sliding rod;

the angle adjusting ruler further comprises a second rotating button, a second threaded notch matched with the first threaded protrusion is formed in the inner wall of the second rotating button, a first fixed block is connected to the surface of the angle adjusting ruler in a sliding mode, the first sliding rod stretches into the first fixed block and is fixedly connected with the first fixed block, and the first fixed block is larger than the inner wall of the angle adjusting rail in size.

Optionally, the depth adjusting component comprises a depth adjusting ruler arranged above the base, a depth adjusting rail is arranged on the surface of the depth adjusting ruler, a second sliding rod is connected to the inner wall of the depth adjusting rail in a sliding manner, and a second threaded protrusion is arranged on the surface of the second sliding rod;

still include the third turn button, the inner wall of third turn button offer with the protruding two looks adaptation of screw thread screw notch three, the surface sliding connection of degree of depth adjustment chi has fixed block two, slide bar two stretch into the inside of fixed block two and rather than fixed connection, the size of fixed block two is greater than the inner wall size of degree of depth adjustment rail.

Optionally, a fixed shell is arranged below the loop-shaped handle;

the battery pack is characterized by further comprising a battery case, a battery is arranged in the battery case, two elastic clamping pieces which are symmetrically arranged are fixedly connected to the upper surface of the battery case, and fixing notches for the two elastic clamping pieces to extend in are formed in the inner wall of the fixing case.

Optionally, the surface of the square handle is provided with first anti-skidding lines, and the surface of the hand rest is provided with second anti-skidding lines.

Optionally, the surface of the driving shell is uniformly provided with a plurality of first heat dissipation through holes, and the surface of the battery shell is uniformly provided with a plurality of second heat dissipation through holes; the surface of the radiating pipe is provided with a radiating power supply, the surface of the radiating power supply is provided with a radiating switch, the inner wall of the radiating pipe is provided with a radiating fan, and the inner wall of the radiating fan is uniformly provided with a plurality of radiating blades;

still include the cartridge filter, the cartridge filter is close to the one end of cooling tube is provided with the filter, the fixed ring of fixed surface connection of cooling tube, the surface of cartridge filter evenly is provided with a plurality of elasticity lugs, supply are seted up to the surface of fixed ring elasticity lug male slot.

The surface of base has evenly offered a plurality of fretwork holes.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, through the cooperation of the auxiliary straight cutting component, the angle adjusting component and the depth adjusting component, the cutting of the wood during cutting can be ensured, deviation can not occur, and meanwhile, the cutting angle and the cutting depth of the wood can be adjusted, so that the electric circular saw can adapt to cutting operations of various woods according to cutting requirements, and the electric circular saw is simple and convenient to operate and has stronger practicability.

2. According to the invention, the battery shell is taken down from the fixed shell, so that the power supply to the driving motor can be stopped when the electric circular saw is not used, and at the moment, even if a person carelessly touches the control switch by mistake, the saw blade cannot rotate, thereby avoiding the problem of unnecessary personal injury caused by careless mistaken touching of the control switch by the person, and the safety is higher.

3. According to the invention, the heat radiation switch on the heat radiation pipe is opened, and under the action of the plurality of heat radiation blades on the surface of the heat radiation fan, hot air generated during high-speed rotation cutting of the saw blade can be discharged to the outer sides of the upper shell and the lower shell after being filtered by the filter plate, so that the damage of the saw blade caused by high temperature is avoided, the service life of the saw blade is prolonged, and the long-time use of the electric circular saw is ensured.

Drawings

FIG. 1 is an isometric view of a structure of the present invention;

FIG. 2 is a second perspective view of the present invention;

FIG. 3 is an isometric view of the present invention;

FIG. 4 is a schematic view of a baffle structure according to the present invention;

FIG. 5 is a cross-sectional view of the first knob structure of the present invention;

FIG. 6 is a cross-sectional view of a second knob structure according to the present invention;

FIG. 7 is a schematic view of the depth adjustment ruler of the present invention;

FIG. 8 is a cross-sectional view of a third knob structure according to the present invention;

FIG. 9 is a schematic view of the present invention at a stationary housing structure;

FIG. 10 is a schematic view of a battery case structure according to the present invention;

FIG. 11 is a cross-sectional view of the drive housing structure of the present invention;

FIG. 12 is a schematic view of a filter cartridge structure according to the present invention;

fig. 13 is a sectional view showing a structure of a radiating pipe according to the present invention.

In the figure: 1. a base; 2. an upper housing; 3. a lower housing; 4. a connecting handle; 5. a heat radiating pipe; 6. the first anti-skid lines are formed; 7. a loop-shaped handle; 8. anti-slip lines II; 9. a hand support; 10. an angle adjusting part; 11. an auxiliary straight cutting member; 101. a guiding ruler; 102. a weldment; 103. a baffle; 104. a first knob; 105. a threaded rod; 106. a sliding sleeve; 12. an angle adjusting part; 121. a second knob; 122. an angle adjusting ruler; 123. an angle adjusting rail; 124. a first fixed block; 125. a first slide bar; 13. yielding a cutting groove; 14. a saw blade; 15. a fastening bolt; 16. a driving case; 17. a first heat dissipation through hole; 18. a second heat dissipation through hole; 19. a battery case; 20. a depth adjusting part; 201. a depth adjusting ruler; 202. a depth adjustment rail; 203. a third knob; 204. a second fixed block; 205. a second slide bar; 21. a fixed case; 22. a fixed notch; 23. an elastic clip; 24. a main shaft; 25. a driving motor; 26. a hollowed hole; 27. a control switch; 28. a heat dissipation power supply; 29. a heat radiation switch; 30. a fixing ring; 31. a filter cartridge; 32. a heat radiation fan; 33. a heat radiation blade; 34. an elastic bump; 35. and (5) a filter plate.

Description of the embodiments

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Examples

Referring to fig. 1 to 13, the present invention provides a technical solution: the electric circular saw comprises a base 1, wherein an upper shell 2 is fixedly connected to the surface of the base 1, the electric circular saw further comprises a connecting handle 4, the upper shell 2 is fixedly connected with a lower shell 3 through the connecting handle 4 in a rotating manner, and a yielding cutting groove 13 is formed between the upper shell 2 and the lower shell 3;

the upper surface of the base 1 is fixedly connected with a driving shell 16, a driving motor 25 is arranged in the driving shell 16, an output shaft of the driving motor 25 is fixedly connected with a main shaft 24, the base further comprises a fastening bolt 15, the main shaft 24 is detachably connected with a saw blade 14 through the fastening bolt 15, the upper surface of the driving shell 16 is provided with a rectangular handle 7, and the upper surface of the driving shell 16 is further provided with a hand rest 9;

an auxiliary straight cutting part 11 for auxiliary cutting and an angle adjusting part 12 for adjusting the cutting angle are arranged above the base 1;

a depth adjusting member 20 for adjusting the cutting depth is also included.

More specifically, when the embodiment is used, the auxiliary straight cutting component 11 is controlled to horizontally position the cutting direction of the saw blade before the cutting operation of the saw blade 14, so that the saw blade 14 is prevented from shifting during the subsequent cutting operation, and the cutting of wood is ensured.

Through controlling angle adjusting part, can accomplish saw bit 14 cutting angle's adjustment according to the different cutting angles of timber that want to cut to make the electric circular saw adaptable multiple different service environment, the practicality is strong.

Similarly, the depth of cut of the saw blade 14 can be adjusted by controlling the depth adjusting part so that the electric circular saw can be adapted to perform cutting operations on plates of different thicknesses.

After the horizontal positioning, the cutting angle and the cutting depth before cutting are all adjusted, an operator holds the return handle 7 by one hand and places the other hand on the hand support 9, and the two hands are synchronously operated, so that the electric circular saw is more stable when being used for cutting operation.

Then, the control switch 27 on the loop handle 7 is pressed to start the driving motor 25 in the driving shell 16 and drive the main shaft 24 to rotate at a high speed, and the rotation of the main shaft 24 causes the saw blade 14 to start rotating, so that the cutting operation of the plate material can be performed.

Notably, because the upper casing 2 outside the saw blade 14 is fixedly connected with the lower casing 3 through the connecting handle 4, along with forward movement of an operator and continuous cutting of the saw blade 14, the lower casing 3 can rotate towards a direction close to the inside of the upper casing 2, so that the yielding cutting groove 13 arranged between the upper casing 2 and the lower casing 3 is slowly increased, and the two sides of the opening of the yielding cutting groove 13 can be always clung to the upper side and the lower side of a cutting board, so that when an operator uses an electric circular saw for cutting, the saw blade 14 can effectively cut the board, and meanwhile, the saw blade 14 cannot leak out of the outer sides of the upper casing 2 and the lower casing 3, thereby avoiding the problem that the body of the operator is possibly damaged when the saw blade 14 is operated, and the safety is higher.

Because the saw blade 14 is detachably connected with the main shaft 24 through the fastening bolt 15, when the electric circular saw is used for a period of time, the fastening bolt 15 is taken down from the main shaft 24, and the replacement of the saw blade 14 can be completed, so that the operation is simple and the practicability is high.

In the second embodiment, based on the above embodiment,

further, an auxiliary straight cutting part 11, an angle adjusting part 12 and a depth adjusting part 20 in the first embodiment are disclosed, the auxiliary straight cutting part 11 comprises a sliding sleeve 106 fixedly connected to the upper surface of the base 1, a guiding ruler 101 is arranged below the sliding sleeve 106, and the guiding ruler 101 is in sliding connection with the upper surface of the base 1;

still include first knob 104, the inside fixedly connected with threaded rod 105 of first knob 104, the inside of sliding sleeve 106 is seted up and is had the screw thread notch one with threaded rod 105 looks adaptation.

Also comprises a weldment 102, and the guide 101 is welded with a baffle 103 through the weldment 102.

The angle adjusting part 12 comprises an angle adjusting ruler 122 arranged above the base 1, an angle adjusting rail 123 is arranged on the surface of the angle adjusting ruler 122, the inner wall of the angle adjusting rail 123 is connected with a first slide rod 125 in a sliding manner, and a first thread protrusion is arranged on the surface of the first slide rod 125;

the angle adjusting ruler 122 is provided with a first fixing block 124 in a sliding connection mode, a first sliding rod 125 extends into the first fixing block 124 and is fixedly connected with the first fixing block, and the first fixing block 124 is larger than the angle adjusting rail 123 in size.

The depth adjusting part comprises a depth adjusting ruler 201 arranged above the base 1, a depth adjusting rail 202 is arranged on the surface of the depth adjusting ruler 201, a second slide rod 205 is connected to the inner wall of the depth adjusting rail 202 in a sliding manner, and a second threaded protrusion is arranged on the surface of the second slide rod 205;

the depth adjusting ruler further comprises a third rotary button 203, a third threaded notch matched with the second threaded protrusion is formed in the inner wall of the third rotary button 203, a second fixing block 204 is connected to the surface of the depth adjusting ruler 201 in a sliding mode, a second sliding rod 205 extends into the second fixing block 204 and is fixedly connected with the second fixing block, and the size of the second fixing block 204 is larger than that of the inner wall of the depth adjusting rail 202.

A fixed shell 21 is arranged below the loop-shaped handle 7;

the battery shell 19 is further included, a battery is arranged in the battery shell 19, two elastic clamping pieces 23 which are symmetrically arranged are fixedly connected to the upper surface of the battery shell 19, and a fixing notch 22 into which the two elastic clamping pieces 23 extend is formed in the inner wall of the fixing shell 21.

The surface of the back-shaped handle 7 is provided with a first anti-slip grain 6, and the surface of the hand rest 9 is provided with a second anti-slip grain 8.

The surface of the driving shell 16 is uniformly provided with a plurality of first heat dissipation through holes 17, and the surface of the battery shell 19 is uniformly provided with a plurality of second heat dissipation through holes 18; the surface of the radiating pipe 5 is provided with a radiating power supply 28, the surface of the radiating power supply 28 is provided with a radiating switch 29, the inner wall of the radiating pipe 5 is provided with a radiating fan 32, and the inner wall of the radiating fan 32 is uniformly provided with a plurality of radiating blades 33;

still include cartridge filter 31, cartridge filter 31 is provided with filter 35 near the one end of cooling tube 5, and the fixed ring 30 of fixed surface connection of cooling tube 5, the surface of cartridge filter 31 evenly is provided with a plurality of elasticity lugs 34, and the slot that supplies elasticity lug 34 male is seted up on the surface of fixed ring 30.

A plurality of hollowed-out holes 26 are uniformly formed in the surface of the base 1.

More specifically, when the present embodiment is used, as shown in fig. 2 and 5, the base 1 is firstly placed on the surface of the wood to be cut, the guide rule 101 at this time is flush with the wood, then the first knob 104 is rotated to make the threaded rod 105 move upwards until the threaded rod 105 no longer contacts with the guide rule 101 below, at this time, the guide rule 101 can be moved above the base 1, the guide rule 101 is aligned with the cutting line drawn on the surface of the wood to be cut according to the scale on the guide rule 101, then the first knob 104 is reversely rotated to reset until the threaded rod 105 is abutted against the guide rule 101 again, and the aligned guide rule 101 can be fixed again, so that the phenomenon of cutting offset can not occur during subsequent cutting, and the guide rule can be straightened.

When the cutting angle of the wood needs to be adjusted, as shown in fig. 2 and 6, the second knob 121 is turned first to release the fixing of the first slide bar 125 in the angle adjusting rail 123, then the base 1 is adjusted to the required cutting angle according to the angle marked on the angle adjusting ruler 122, and then the second knob 121 is reversed to complete the adjustment of the cutting angle of the wood.

When the cutting depth of the wood needs to be adjusted, as shown in fig. 7 and 8, the third knob 203 is turned to release the fixing of the second slide rod 205 in the depth adjusting rail 202, then the base 1 and the saw blade 14 are adjusted to the required cutting depth according to the scale marked on the depth adjusting ruler 201, and then the third knob 203 is reversed to complete the adjustment of the cutting depth of the wood.

To sum up, through the cooperation of supplementary straight cutting part 11, angle adjusting part 12 and degree of depth adjusting part 20, can guarantee the cutting of timber when cutting to cut to be straight, can not take place the skew, can adjust timber cutting angle and cutting depth simultaneously to make the cutting of multiple timber of adaptable electric circular saw, easy operation is convenient, and the practicality is stronger.

The baffle 103 on the guide 101 can be arranged on the outer side of the base 1 all the time in the sliding process of the guide 101, so that the baffle 103 can play a limiting role when the guide 101 axially slides.

When the electric circular saw is not used, the battery shell 19 can be taken down from the fixed shell 21, and at the moment, even if a user carelessly touches the control switch 27 by mistake, the main shaft 24 can not rotate due to the lack of power supply of the driving motor 25 in the driving shell 16, so that the problem that the user carelessly touches the control switch 27 by mistake and causes unnecessary personal injury is avoided.

When the saw blade 14 rotates at a high speed to cut wood, the heat radiation switch 29 on the heat radiation pipe 5 is turned on, so that the heat radiation fan 32 in the heat radiation pipe 5 is opened to work, and under the action of the plurality of heat radiation blades 33 on the surface of the heat radiation fan 32, hot air generated during the high-speed rotation cutting of the saw blade 14 can be discharged to the outer sides of the upper shell 2 and the lower shell 3 after being filtered by the filter plate 35, thereby avoiding the damage of the saw blade 14 caused by high temperature and prolonging the service life of the saw blade 14.

When the filter cartridge 35 needs to be cleaned, the filter cartridge 31 is pulled in a direction away from the radiating tube 5, so that the elastic lug 34 is separated from the slot, and the filter cartridge 31 can be taken down from the radiating tube 5 for cleaning.

Under the effect of a plurality of heat dissipation through holes 17 that evenly set up on the surface of drive shell 16, can be with the heat that drive motor 25 during operation produced in the drive shell 16 discharge to the outside of drive shell 16 to avoided the electric circular saw after long-time use, the temperature in the drive shell 16 is too high, cause the damage of its internal part, thereby further prolonged the life of electric circular saw.

Offer of a plurality of fretwork holes 26 on base 1 surface, the material that consumes when the production of more saving base 1 on the one hand, on the other hand can be when receiving external force on base 1, with the external force dispersion to a plurality of fretwork holes 26 on to make electric circular saw when using, base 1 can be more stable.

The setting of the first 6 of shape handle 7 surface anti-skidding line and the second 8 of hand rest 9 surface anti-skidding line can increase the frictional force of user when holding shape handle 7 and hand rest 9 to avoid skidding when cutting operation, thereby further promoted the security of electric circular saw when using.

Working principle: this electric circular saw, when using, place base 1 on the timber surface that needs to cut, guide 101 then can be with timber looks parallel and level at this moment, first rotation knob 104 earlier, so that threaded rod 105 upwards moves, until threaded rod 105 no longer contacts with the guide 101 of below, can remove guide 101 in the top of base 1 this moment, aim at the line of cut that needs cutting timber surface drawn according to the scale on guide 101, then reverse rotation first knob 104 resets, until threaded rod 105 again with guide 101 looks butt, can be with guide 101 after the alignment again fixed, thereby can guarantee that the phenomenon of cutting skew can not take place in the time of follow-up cutting, in order to be able to straighten.

When the cutting angle of the wood needs to be adjusted, the second knob 121 is turned to release the fixing of the first slide rod 125 in the angle adjusting rail 123, then the base 1 is adjusted to the required cutting angle according to the angle marked on the angle adjusting ruler 122, and then the second knob 121 is reversed to fix the cutting angle again, so that the adjustment of the cutting angle of the wood can be completed.

Similarly, when the cutting depth of the wood needs to be adjusted, the third rotary knob 203 is rotated to release the fixing of the second slide rod 205 in the depth adjusting rail 202, then the base 1 and the saw blade 14 are adjusted to the required cutting depth according to the scale marked on the depth adjusting ruler 201, and then the third rotary knob 203 is reversed to complete the adjustment of the cutting depth of the wood.

After the horizontal positioning, the cutting angle and the cutting depth before cutting are adjusted, an operator holds the return handle 7 with one hand and places the other hand on the hand rest 9, the electric circular saw can be used for cutting more stably through synchronous operation of the two hands, and finally the control switch 27 is pressed to enable the driving motor 25 in the driving shell 16 to start working and drive the main shaft 24 to rotate at a high speed, so that the saw blade 14 can start rotating, and cutting operation of plates can be performed.

That is, through the cooperation of supplementary straight cutting part 11, angle adjusting part 12 and degree of depth adjusting part 20, can guarantee that timber is cut straightly when cutting, can not take place the skew, can adjust timber cutting angle and cutting depth simultaneously to make the electric circular saw adaptable to the cutting operation to multiple timber, easy operation is convenient, and the practicality is stronger.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. An electric circular saw, comprising a base (1), characterized in that: the surface of the base (1) is fixedly connected with an upper shell (2), the base further comprises a connecting handle (4), the upper shell (2) is fixedly connected with a lower shell (3) through the connecting handle (4) in a rotating manner, a yielding cutting groove (13) is formed between the upper shell (2) and the lower shell (3), and a radiating pipe (5) is arranged on the surface of the upper shell (2);

the novel saw blade structure is characterized in that a driving shell (16) is fixedly connected to the upper surface of the base (1), a driving motor (25) is arranged in the driving shell (16), a main shaft (24) is fixedly connected to an output shaft of the driving motor (25), the novel saw blade structure further comprises a fastening bolt (15), a saw blade (14) is detachably connected to the main shaft (24) through the fastening bolt (15), a square handle (7) is arranged on the upper surface of the driving shell (16), and a hand rest (9) is further arranged on the upper surface of the driving shell (16);

an auxiliary straight cutting part (11) for auxiliary cutting and an angle adjusting part (12) for adjusting the cutting angle are arranged above the base (1);

also included is a depth adjustment member (20) for adjusting the depth of cut.

2. The electric circular saw of claim 1, wherein: the auxiliary straight cutting component (11) comprises a sliding sleeve (106) fixedly connected to the upper surface of the base (1), a guide rule (101) is arranged below the sliding sleeve (106), and the guide rule (101) is in sliding connection with the upper surface of the base (1);

still include first knob (104), the inside fixedly connected with threaded rod (105) of first knob (104), the inside of sliding sleeve (106) seted up with threaded notch one of threaded rod (105) looks adaptation.

3. The electric circular saw of claim 2, wherein: the guide ruler (101) is welded with a baffle (103) through the weldment (102).

4. The electric circular saw of claim 1, wherein: the angle adjusting part (12) comprises an angle adjusting ruler (122) arranged above the base (1), an angle adjusting rail (123) is arranged on the surface of the angle adjusting ruler (122), a first sliding rod (125) is connected to the inner wall of the angle adjusting rail (123) in a sliding manner, and a first threaded protrusion is arranged on the surface of the first sliding rod (125);

still include second turn button (121), the inner wall of second turn button (121) offer with the protruding looks adaptation screw thread notch two of screw thread, the surface sliding connection of angle adjustment chi (122) has fixed block one (124), slide bar one (125) stretch into the inside of fixed block one (124) and rather than fixed connection, the size of fixed block one (124) is greater than the inner wall size of angle adjustment rail (123).

5. The electric circular saw of claim 1, wherein: the depth adjusting part comprises a depth adjusting ruler (201) arranged above the base (1), a depth adjusting rail (202) is arranged on the surface of the depth adjusting ruler (201), a second sliding rod (205) is connected to the inner wall of the depth adjusting rail (202) in a sliding manner, and a second threaded protrusion is arranged on the surface of the second sliding rod (205);

still include third turn button (203), the inner wall of third turn button (203) seted up with the screw notch three of the protruding two looks adaptation of screw thread, the surface sliding connection of degree of depth adjustment chi (201) has fixed block two (204), slide bar two (205) stretch into the inside of fixed block two (204) and rather than fixed connection, the size of fixed block two (204) is greater than the inner wall size of degree of depth adjustment rail (202).

6. The electric circular saw of claim 1, wherein: a fixed shell (21) is arranged below the loop-shaped handle (7);

the battery pack also comprises a battery case (19), a battery is arranged in the battery case (19), two elastic clamping pieces (23) which are symmetrically arranged are fixedly connected to the upper surface of the battery case (19), and a fixing notch (22) for the two elastic clamping pieces (23) to extend into is formed in the inner wall of the fixing case (21).

7. The electric circular saw of claim 1, wherein: the surface of the square handle (7) is provided with first anti-slip lines (6), and the surface of the hand rest (9) is provided with second anti-slip lines (8).

8. The electric circular saw of claim 1, wherein: the solar cell is characterized in that a plurality of first radiating through holes (17) are uniformly formed in the surface of the driving shell (16), a plurality of second radiating through holes (18) are uniformly formed in the surface of the battery shell (19), a radiating power supply (28) is arranged on the surface of the radiating tube (5), a radiating switch (29) is arranged on the surface of the radiating power supply (28), a radiating fan (32) is arranged on the inner wall of the radiating tube (5), and a plurality of radiating blades (33) are uniformly arranged on the inner wall of the radiating fan (32).

9. The electric circular saw of claim 8, wherein: the electric circular saw further comprises a filter cylinder (31), wherein a filter plate (35) is arranged at one end, close to the radiating pipe (5), of the filter cylinder (31), a fixing ring (30) is fixedly connected to the surface of the radiating pipe (5), a plurality of elastic protruding blocks (34) are uniformly arranged on the surface of the filter cylinder (31), and slots for the elastic protruding blocks (34) to be inserted into are formed in the surface of the fixing ring (30);

a plurality of hollowed-out holes (26) are uniformly formed in the surface of the base (1).