A portable cutting machine having a bidirectional gripping handle

Abstract

The application relates to the field of cutting equipment, and provides a portable cutting machine with a bidirectional holding handle, which comprises a connecting seat, a driving bin fixedly connected to the bottom right side of the connecting seat, a water storage bin fixedly connected to the bottom left side of the connecting seat, an operating handle rotationally connected to the left and right sides of the connecting seat through a first adjusting assembly, a fixed cover, a sliding cover slidably assembled on the inner wall of the fixed cover, a protection cavity formed by the fixed cover and the sliding cover for reducing cutting chip splashing, a baffle connected to the fixed cover through a second adjusting assembly, and a spray head assembled on the left side of the rear end of the fixed cover. The first adjusting assembly is used for realizing flexible adjustment and locking of the circumferential angle of the handle, adapting to different cutting postures, and reducing operation fatigue. Through mechanical linkage of a pumping assembly and a sealing assembly, dust fall water channels and motor start-stop synchronous automatic on-off are realized, operation is convenient, dust removal is realized at the same time, and water liquid waste is avoided.

Description

Technical Field

[0001] This invention relates to the field of cutting equipment, specifically a portable cutting machine with a two-way grip handle. Background Technology

[0002] Portable cutting machines are widely used in building decoration, stone processing, municipal construction and other fields for on-site cutting of materials such as stone, tiles and concrete. The operating handle of traditional portable cutting machines is usually a fixed structure and cannot be adjusted according to the cutting posture. When cutting at an angle or working in a narrow space, the operator's wrist needs to maintain an unnatural bending angle for a long time, which can easily cause operator fatigue and affect cutting accuracy and work safety.

[0003] Furthermore, portable cutting machines on the market generate a large amount of stone dust during high-speed cutting operations. This dust disperses throughout the work site, polluting the construction environment and potentially being inhaled by operators, harming their health. Therefore, a portable cutting machine with a two-way grip handle is needed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a portable cutting machine with a two-way grip handle, which solves the problems of fixed and unadjustable handle angles, inconvenient operation when tilting, and severe dust pollution when cutting stone.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A portable cutting machine with a two-way grip handle includes: A connecting seat, wherein a drive chamber is fixedly connected to the bottom right side of the connecting seat, a water storage chamber is fixedly connected to the bottom left side of the connecting seat, and an operating handle is rotatably connected to the left and right sides of the connecting seat through a first adjusting component; A fixed cover is fixedly connected to the front end of the connecting seat at its rear side. A sliding cover is slidably fitted on the inner wall of the fixed cover. The two together form a protective cavity to reduce chip splashing. A baffle is connected to the fixed cover through a second adjustment component. A nozzle is fitted on the left rear end of the fixed cover. The saw blade is assembled in a cavity formed by a fixed cover and a sliding cover, and is driven to rotate by a motor assembled in the drive chamber to perform cutting operations. A partition plate is fixedly connected to the middle of the inner wall of the water storage tank, dividing the water storage tank into an independent equipment area and a water storage area. A water outlet pipe is fixedly connected to the front side of the partition plate. The output end of the water outlet pipe is connected to the nozzle through a connecting pipe. A retractable water injection pipe is slidably fitted to the input end of the water outlet pipe. A pumping assembly is provided on the front side of the water outlet pipe, and a sealing assembly is provided on the rear side of the water outlet pipe.

[0006] Preferably, the first adjustment component includes a baffle fixedly connected to the outer side of the inner cavity of the connecting seat, a sliding sleeve slidably connected to the inner side of the baffle, a second locking tooth block slidably connected to the inner wall of the sliding sleeve, a first locking tooth block abutting and engaging with the outer side of the second locking tooth block, a locking rod slidably connected to the inner wall of the first locking tooth block, and an unlocking knob fixedly connected to the end of the locking rod.

[0007] Preferably, the locking tooth block two and the locking tooth block one are integrally formed with multiple teeth on their adjacent sides, the locking tooth block two and the locking tooth block one are fixedly connected to the connecting seat on their opposite sides, and the locking tooth block one and the locking tooth block two are fixedly connected to the operating handle on their opposite sides.

[0008] Preferably, the end of the locking rod is threadedly connected to the locking tooth block, a spring is provided between one end of the sliding sleeve and the inner cavity of the connecting seat, the other end of the sliding sleeve is fixedly connected to the operating handle, and the outer wall of the locking rod is slidably connected to the operating handle.

[0009] Preferably, the second adjustment component includes an arc-shaped adjustment bar that is slidably mounted on the right side of the rear wall of the fixed cover and is locked and positioned with the adjustment bar by a threaded cap. A connector is rotatably mounted on the left side of the rear wall of the fixed cover. Adjustment seats are mounted on opposite sides of the adjustment bar and the connector. The bottom of the two adjustment seats is fixedly connected to the baffle.

[0010] Preferably, the inner wall of the adjusting seat is provided with an arc-shaped sliding groove, and the ends of the adjusting bar and the connecting piece extend into the arc-shaped sliding groove and are locked and positioned by a threaded cap.

[0011] Preferably, the pumping assembly includes a gear chamber fixedly connected to the outer wall of the front side of the outlet pipe. Two rotors are rotatably connected to the inner wall of the gear chamber. A drive shaft driven by a motor is provided at the bottom of the gear chamber. A transmission shaft is connected to the outer wall of the drive shaft through two meshing gears. The transmission shaft passes through the gear chamber. The portion of the transmission shaft located in the inner cavity of the gear chamber is fixedly connected to the rotor at the bottom, and is used to drive the rotor to rotate to generate pumping water pressure.

[0012] Preferably, the sealing assembly includes a sealing chamber fixedly connected to the outer wall of the outlet pipe, a sealing plate slidably connected to the inner wall of the sealing chamber, a connecting frame fixedly connected to the top of the sealing plate, a support frame sleeved on the outer wall of the connecting frame, a return spring provided between the support frame and the connecting frame, a cam abutting the bottom of the connecting frame, a rotating rod fixedly connected to the outer periphery of the cam, and the end of the rotating rod being connected to the drive shaft via a synchronous belt and synchronous pulley.

[0013] Preferably, a locking button is fitted on the top outer wall of the right-side operating handle to lock the motor's start-up state, and a start button is fitted on the inner side of the right-side operating handle to control the motor in the drive compartment to start or stop.

[0014] Preferably, a water inlet is provided on the top outer wall of the rear side of the water storage tank, and a sealing cap is fitted at the output end of the water inlet. A locking block is fixedly connected to the rear side of the inner wall of the water storage tank, and a retaining ring made of soft rubber is fixed on the outer wall of the rear side of the water injection pipe. The inner walls of the front and rear sides of the locking block are provided with grooves that fit the retaining ring, and a water inlet for water intake is provided on the front side of the water injection pipe.

[0015] Working principle: Before use, the operator opens the sealing cap on the top water inlet at the rear of the water storage tank and injects an appropriate amount of cooling or dust-suppressing water into the storage area. After adding water, the sealing cap is closed to prevent water from splashing out during operation. Depending on the cutting scenario, when cutting materials that generate dust, such as stone, the water injection pipe is pulled back. The soft rubber retaining ring fixed on the outer wall of the rear of the water injection pipe engages with the groove on the inner wall of the locking block, allowing the water inlet at the front of the water injection pipe to extend from the outlet pipe into the water storage area of ​​the water storage tank, completing the water injection preparation.

[0016] Depending on the cutting requirements, the operator first adjusts the exposed distance of the saw blade. Loosening the threaded cap on the adjusting strip, the operator moves the adjusting strip up and down along the inner right wall of the fixed cover, while simultaneously rotating the connecting piece on the left side. This causes the baffle to move with the adjusting seat to the desired position, thus changing the distance the saw blade protrudes from under the baffle. After adjustment, tightening the threaded cap locks the adjusting strip in its current position. Next, the operator adjusts the angle between the cutting machine and the baffle. Loosening the threaded cap on the adjusting seat allows the arc-shaped groove of the adjusting seat to slide along the ends of the adjusting strip and connecting piece, causing the baffle to flip to the desired angle. After adjustment, tightening the threaded cap fixes the baffle in that position.

[0017] The sliding cover has a protruding corner on the front side. When the protruding corner touches the workpiece during the cutting operation, it can push the sliding cover to slide into the fixed cover automatically. Alternatively, the sliding cover can be manually fixed in the desired position by using a threaded cap.

[0018] Depending on the left and right cutting posture requirements, if the cutting machine is operating at an angle, the circumferential angle of the two handles can be adjusted. Rotating the unlocking knob will cause the locking lever to rotate, and the locking lever will move outward along the axis in the second locking tooth block. The spring will push the sliding sleeve to move outward, and the sliding sleeve will drive the operating handle to move outward together. The baffle can prevent the operating handle from excessively disengaging. When the operating handle moves outward, the teeth between the second locking tooth block and the first locking tooth block disengage, releasing the angle lock of the handle. At this time, the operator can freely rotate the handle to the required angle. After the angle is adjusted to the correct position, rotate the unlocking knob in the opposite direction. The locking lever will pull the second locking tooth block to move inward along the axis, and the teeth of the second locking tooth block and the first locking tooth block will re-engage and lock, fixing the handle at the current angle.

[0019] The operator holds the operating handle with both hands according to the cutting posture, unlocks the button, and presses the start button on the inside of the right handle. The motor in the drive chamber starts and drives the saw blade to rotate at high speed. On the other hand, the motor in the water storage chamber starts and drives the transmission shaft to rotate through the drive shaft. The transmission shaft drives the rotor at the bottom of the gear chamber to rotate. The two meshing rotors rotate synchronously in opposite directions, pumping water from the water storage area through the inlet, outlet and connecting pipes to the nozzle, spraying water onto the cutting surface to reduce dust. The drive shaft rotates synchronously with the rotating rod, which in turn drives the cam to rotate. The cam's protruding part pushes the connecting frame upward, and the connecting frame moves upward along the support frame against the spring force of the return spring. This causes the sealing plate to slide upward within the sealed chamber, opening the water passage of the outlet pipe and allowing water to flow smoothly. When the cutting operation is paused or finished, the motor stops running, the drive shaft stops rotating, the cam returns to its original position, and the connecting frame moves downward under the spring force of the return spring. This causes the sealing plate to slide downward and close the water passage of the outlet pipe, blocking the water flow and preventing water from continuing to flow out when work stops. If water dust removal is not required, the water injection pipe can be pressed back into the locking block, and the water inlet at the end of the water injection pipe slides back into the outlet pipe, cutting off the water supply.

[0020] This invention provides a portable cutting machine with a two-way grip handle. It has the following advantages: 1. The present invention realizes the circumferential angle adjustment and locking of the operating handle through the first adjustment component. Rotating the unlocking knob can disengage the locking teeth, and the handle is released from the lock under the action of the spring. The operator can rotate the handle to the required angle for operation. This structure is easy to adjust and responds quickly. It can adapt to the human-machine use needs of various cutting postures, help to alleviate operator fatigue, and improve cutting accuracy and operation safety.

[0021] 2. This invention achieves automatic on / off control of the water circuit through a pumping component and a sealing component. When the motor starts, the drive shaft drives the rotor to rotate and pump water. At the same time, the cam pushes the sealing plate to open the water circuit. When the motor stops, the cam resets, and the sealing plate automatically closes the water circuit under the action of the spring, blocking the water flow. The whole process is synchronized with the start and stop of the motor, without the need for manual intervention. This ensures timely dust reduction during cutting and avoids water waste and wetting of the work area when the machine stops. The operation is convenient and efficient.

[0022] 3. The present invention adopts a retractable water injection pipe structure. When water spraying is needed to suppress dust, the water injection pipe is pulled out backward and its inlet extends into the water storage area to connect the water source. When dust suppression is not needed, the water injection pipe is pushed back and the inlet retracts into the outlet pipe to cut off the water source. The operation is simple and quick, and the switching is flexible. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the connector of the present invention; Figure 3 This is a schematic diagram of the baffle of the present invention; Figure 4 This is a schematic diagram of the drive bay of the present invention; Figure 5 This is a schematic diagram of the operating handle of the present invention; Figure 6 This is a schematic diagram of the sliding sleeve of the present invention; Figure 7 This is a schematic diagram of the locking tooth block of the present invention; Figure 8 This is a schematic diagram of the interior of the water storage tank of the present invention; Figure 9 This is a schematic diagram of the partition plate of the present invention; Figure 10 This is a schematic diagram of the drive shaft of the present invention; Figure 11 This is a schematic diagram of the interior of the gearbox of the present invention; Figure 12 This is a schematic diagram of the closed chamber of the present invention.

[0024] The components are as follows: 1. Connecting seat; 2. Drive chamber; 3. Water storage chamber; 4. Operating handle; 5. Fixed cover; 6. Saw blade; 7. Sliding cover; 8. Baffle; 9. Adjusting seat; 10. Adjusting strip; 11. Connecting piece; 12. Nozzle; 13. Locking button; 14. Start button; 15. Unlocking knob; 16. Locking rod; 17. Baffle plate; 18. Sliding sleeve; 19. Locking tooth block one; 20. Locking tooth block two; 21. Water inlet; 22. Water inlet pipe; 23. Locking block; 24. Snap ring; 25. Water inlet; 26. Divider plate; 27. Water outlet pipe; 28. Gear chamber; 29. ​​Sealing chamber; 30. Cam; 31. Sealing plate; 32. Drive shaft; 33. Drive shaft; 34. Rotor; 35. Rotating rod; 36. Connecting frame; 37. Support frame. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example: This invention provides a portable cutting machine with a two-way grip handle, comprising: Please see the appendix Figure 1 and attached Figure 2The connecting seat 1 has a drive chamber 2 fixedly connected to the bottom right side and a water storage tank 3 fixedly connected to the bottom left side. The connecting seat 1 has an operating handle 4 rotatably connected to the left and right sides via a first adjustment component. The top outer wall of the right operating handle 4 is equipped with a locking button 13 for locking the motor's start state. The right operating handle 4 has a start button 14 for controlling the motor in the drive chamber 2 to start or stop. The fixed cover 5 is fixedly connected to the front end of the connecting seat 1 at the rear. The fixed cover 5 has a sliding cover 7 slidably mounted on its inner wall. Together, they form a protective cavity to reduce chip splashing. The saw blade 6 is mounted in the cavity formed by the fixed cover 5 and the sliding cover 7 and is driven to rotate by the motor mounted in the drive chamber 2 to perform cutting operations. The fixed cover 5 is connected to a baffle 8 via a second adjustment component. The fixed cover 5 has a nozzle 12 mounted on the left rear end.

[0027] Specifically, the connecting base 1 serves as the mounting base for the entire machine, integrating the drive chamber 2, water storage chamber 3, and operating handle 4 into a single structure. The drive chamber 2 is equipped with a motor to provide power for the rotation of the saw blade 6. The water storage chamber 3 is used to store cooling or dust suppression water during cutting operations. The operating handle 4 is rotatably connected to the left and right sides of the connecting base 1 via the first adjustment component, allowing the operator to hold it at multiple angles. The operator can unlock and lock the button 13 and press the start button 14 to start the motor in the drive chamber 2, driving the saw blade 6 to rotate and perform the cutting operation. The fixed cover 5 and the sliding cover 7 together form a protective cavity to prevent chips from flying during cutting. At the same time, the generated chips can be discharged from the top discharge port on the right side of the fixed cover 5. The baffle 8 is connected to the fixed cover 5 via the second adjustment component to limit the exposed depth of the saw blade 6 and adjust the cutting angle. The nozzle 12 is mounted on the left side of the rear end of the fixed cover 5 to spray water onto the cutting surface for dust suppression.

[0028] Please see the appendix Figure 5 -Appendix Figure 7 The first adjustment component includes a baffle 17 fixedly connected to the outer side of the inner cavity of the connecting seat 1. A sliding sleeve 18 is slidably connected to the inner side of the baffle 17. A second locking tooth block 20 is slidably connected to the inner wall of the sliding sleeve 18. A first locking tooth block 19 is engaged with the outer side of the second locking tooth block 20. A locking rod 16 is slidably connected to the inner wall of the first locking tooth block 19. An unlocking knob 15 is fixedly connected to the end of the locking rod 16. Multiple teeth are integrally formed on the adjacent sides of the second locking tooth block 20 and the first locking tooth block 19. The opposite sides of the second locking tooth block 20 and the first locking tooth block 19 are fixedly connected to the connecting seat 1. The opposite sides of the first locking tooth block 19 and the second locking tooth block 20 are fixedly connected to the operating handle 4. The end of the locking rod 16 is threadedly connected to the second locking tooth block 20. A spring is provided between one end of the sliding sleeve 18 and the inner cavity of the connecting seat 1. The other end of the sliding sleeve 18 is fixedly connected to the operating handle 4. The outer wall of the locking rod 16 is slidably connected to the operating handle 4.

[0029] Specifically, when the cutting machine is operated at an angle, the circumferential angle of the two handles can be adjusted to provide the operator with a more comfortable grip. Rotating the unlocking knob 15 causes the locking lever 16 to rotate, and the locking lever 16 moves outward along the axis within the locking tooth block 20. At this time, the spring pushes the sliding sleeve 18 to move outward, and the sliding sleeve 18 moves the operating handle 4 outward together. The baffle 17 limits the travel of the sliding sleeve 18 to prevent the operating handle 4 from excessively disengaging. When the operating handle 4 moves outward, the teeth between the locking tooth block 19 fixed on the operating handle 4 and the locking tooth block 20 fixed on the connecting seat 1 disengage, releasing the angle lock of the handle. The operator can then freely rotate the handle to the desired angle. After the angle is adjusted to the desired position, rotating the unlocking knob 15 in the opposite direction causes the locking lever 16 to pull the locking tooth block 20 inward along the axis. The teeth of the locking tooth block 20 and the locking tooth block 19 re-engage and lock, fixing the operating handle 4 at the current angle.

[0030] Please see the appendix Figure 7 The second adjustment component includes an arc-shaped adjustment bar 10 that is slidably mounted on the right side of the rear wall of the fixed cover 5 and locked and positioned with the adjustment bar 10 by a threaded cap. A connector 11 is rotatably mounted on the left side of the rear wall of the fixed cover 5. Adjustment seats 9 are mounted on opposite sides of the adjustment bar 10 and the connector 11. The bottom of the two adjustment seats 9 is fixedly connected to the baffle 8.

[0031] Specifically, when adjusting the exposed distance of the saw blade 6, loosen the threaded cap on the adjusting strip 10 and move the adjusting strip 10 up and down along the right side of the rear wall of the fixed cover 5. The adjusting strip 10 drives the adjusting seat 9 and the baffle 8 to rotate synchronously around the connection point of the connector 11, thereby changing the distance at which the saw blade 6 is exposed from below the baffle 8. After adjustment, tighten the threaded cap to lock the adjusting strip 10. When adjusting the cutting angle, loosen the threaded cap on the adjusting seat 9, so that the arc-shaped groove of the adjusting seat 9 slides along the opposite ends of the adjusting strip 10 and the connector 11, causing the baffle 8 to flip to the required angle. After adjustment, tighten the threaded cap to fix the baffle 8 in that position.

[0032] Please see the appendix Figure 8 Appendix Figure 10 and attached Figure 11The outer wall of the partition plate 26 is fixedly connected to the middle of the inner wall of the water storage tank 3, dividing the water storage tank 3 into an independent equipment area and a water storage area. A water outlet pipe 27 is fixedly connected to the front side of the partition plate 26. The output end of the water outlet pipe 27 is connected to the nozzle 12 through a connecting pipe. A retractable water injection pipe 22 is slidably fitted to the input end of the water outlet pipe 27. A pumping assembly is provided on the front side of the water outlet pipe 27. The pumping assembly includes a gear chamber 28 fixedly connected to the outer wall of the front side of the water outlet pipe 27. Two rotors 34 are rotatably connected to the inner wall of the gear chamber 28. A drive shaft 33 driven by a motor is provided at the bottom of the gear chamber 28. A transmission shaft 32 is connected to the outer wall of the drive shaft 33 through two meshing gears. The transmission shaft 32 passes through the gear chamber 28. The part of the transmission shaft 32 located in the inner cavity of the gear chamber 28 is fixedly connected to the rotor 34 at the bottom, and is used to drive the rotor 34 to rotate to generate pumping water pressure.

[0033] Specifically, when water spraying is required to reduce dust during cutting, the motor in the water storage tank 3 starts, and drives the transmission shaft 32 to rotate through the drive shaft 33 and two meshing gears. The part of the transmission shaft 32 located in the inner cavity of the gear compartment 28 drives the rotor 34 at the bottom to rotate. The two rotors 34 mesh with each other and rotate synchronously in opposite directions, forming alternating negative and positive pressure in the gear compartment 28. The water in the water storage area enters the water outlet pipe 27 through the water inlet 25 on the front side of the water injection pipe 22. Under the pumping action of the rotor 34, the water is pressurized and transported to the nozzle 12 through the connecting pipe to spray water onto the cutting surface to reduce dust.

[0034] Please see the appendix Figure 11 and attached Figure 12 A sealing assembly is provided on the rear side of the water outlet pipe 27. The sealing assembly includes a sealing chamber 29 fixedly connected to the outer wall of the rear side of the water outlet pipe 27. A sealing plate 31 is slidably connected to the inner wall of the sealing chamber 29. A connecting frame 36 is fixedly connected to the top of the sealing plate 31. A support frame 37 is sleeved on the outer wall of the connecting frame 36. A return spring is provided between the support frame 37 and the connecting frame 36. A cam 30 abuts against the bottom of the connecting frame 36. A rotating rod 35 is fixedly connected to the outer periphery of the cam 30. The end of the rotating rod 35 is connected to the drive shaft 32 through a synchronous belt and synchronous pulley.

[0035] Specifically, during the cutting operation, the drive shaft 32 drives the rotating rod 35 to rotate via the synchronous belt and synchronous pulley. The rotating rod 35 drives the cam 30 to rotate, and the protruding part of the cam 30 pushes the connecting frame 36 upward. The connecting frame 36 overcomes the elastic force of the return spring and moves upward along the support frame 37, causing the sealing plate 31 to slide upward within the sealing chamber 29, opening the water passage of the water outlet pipe 27 and allowing water to flow smoothly. When the cutting operation is paused or finished, the motor stops running, the drive shaft 32 stops rotating, the cam 30 rotates back to its original position, releasing the pushing force on the connecting frame 36. Under the elastic force of the return spring, the connecting frame 36 moves downward, causing the sealing plate 31 to slide downward and close the water passage of the water outlet pipe 27, blocking the water flow and preventing water from continuing to flow out when work stops.

[0036] Please see the appendix Figure 9 A water inlet 21 is provided on the outer wall of the top rear side of the water storage tank 3. A sealing cap is installed at the output end of the water inlet 21. A locking block 23 is fixedly connected to the rear side of the inner wall of the water storage tank 3. A soft rubber retaining ring 24 is fixed on the outer wall of the rear side of the water injection pipe 22. The inner walls of the front and rear sides of the locking block 23 are provided with slots that fit the retaining ring 24. A water inlet 25 for water intake is provided on the front side of the water injection pipe 22.

[0037] Specifically, before use, the operator opens the sealing cap on the water inlet 21 and injects an appropriate amount of dust-suppressing water into the water storage area. After adding water, the sealing cap is closed. When water spraying is required for dust suppression during cutting, the water inlet pipe 22 is pulled backward. The soft rubber retaining ring 24 fixed on the outer wall of the rear side of the water inlet pipe 22 is inserted into the groove on the inner wall of the rear side of the locking block 23, so that the water inlet 25 on the front side of the water inlet pipe 22 extends into the water storage area in the water storage tank 3 from the water outlet pipe 27, completing the water filling preparation. When water flow dust removal is not required, the water inlet pipe 22 is pushed forward and back. The retaining ring 24 disengages from the groove on the rear side of the locking block 23 and is inserted into the groove on the front side. The water inlet 25 at the end of the water inlet pipe 22 slides back into the water outlet pipe 27, cutting off the water source.

[0038] Although embodiments of the 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 to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable cutting machine with a two-way grip handle, characterized in that, include: Connecting seat (1), the bottom right side of the connecting seat (1) is fixedly connected to a drive chamber (2), the bottom left side of the connecting seat (1) is fixedly connected to a water storage chamber (3), and the left and right sides of the connecting seat (1) are rotatably connected to an operating handle (4) through a first adjusting component. The fixed cover (5) is fixedly connected to the front end of the connecting seat (1) at the rear side. The inner wall of the fixed cover (5) is slidably fitted with a sliding cover (7). The two together form a protective cavity to reduce chip splashing. The fixed cover (5) is connected to a baffle (8) through a second adjustment component. A nozzle (12) is fitted on the left side of the rear end of the fixed cover (5). The saw blade (6) is assembled in the cavity formed by the fixed cover (5) and the sliding cover (7), and is driven to rotate by the motor assembled in the drive chamber (2) to perform cutting operations. A partition plate (26) is fixedly connected to the middle of the inner wall of the water storage tank (3) on its outer wall, dividing the water storage tank (3) into an independent equipment area and a water storage area. A water outlet pipe (27) is fixedly connected to the front side of the partition plate (26). The output end of the water outlet pipe (27) is connected to the nozzle (12) through a connecting pipe. A retractable water injection pipe (22) is slidably fitted to the input end of the water outlet pipe (27). A pumping component is provided on the front side of the water outlet pipe (27), and a sealing component is provided on the rear side of the water outlet pipe (27).

2. A portable cutting machine with a two-way grip handle according to claim 1, characterized in that, The first adjustment component includes a baffle (17) fixedly connected to the outer side of the inner cavity of the connecting seat (1). A sliding sleeve (18) is slidably connected to the inner side of the baffle (17). A second locking tooth block (20) is slidably connected to the inner wall of the sliding sleeve (18). A first locking tooth block (19) is engaged with the outer side of the second locking tooth block (20). A locking rod (16) is slidably connected to the inner wall of the first locking tooth block (19). An unlocking knob (15) is fixedly connected to the end of the locking rod (16).

3. A portable cutting machine with a two-way grip handle according to claim 2, characterized in that, The locking tooth block two (20) and the locking tooth block one (19) are integrally formed with multiple teeth on their adjacent sides. The locking tooth block two (20) and the locking tooth block one (19) are fixedly connected to the connecting seat (1) on their opposite sides. The locking tooth block one (19) and the locking tooth block two (20) are fixedly connected to the operating handle (4) on their opposite sides.

4. A portable cutting machine with a two-way grip handle according to claim 2, characterized in that, The end of the locking rod (16) is threadedly connected to the locking tooth block (20), a spring is provided between one end of the sliding sleeve (18) and the inner cavity of the connecting seat (1), the other end of the sliding sleeve (18) is fixedly connected to the operating handle (4), and the outer wall of the locking rod (16) is slidably connected to the operating handle (4).

5. A portable cutting machine with a two-way grip handle according to claim 1, characterized in that, The second adjustment component includes an arc-shaped adjustment bar (10) that is slidably mounted on the right side of the rear wall of the fixed cover (5) and locked and positioned with the adjustment bar (10) by a threaded cap. A connector (11) is rotatably mounted on the left side of the rear wall of the fixed cover (5). Adjustment seats (9) are mounted on opposite sides of the adjustment bar (10) and the connector (11). The bottom of the two adjustment seats (9) is fixedly connected to the baffle (8).

6. A portable cutting machine with a two-way grip handle according to claim 5, characterized in that, The inner wall of the adjusting seat (9) is provided with an arc-shaped sliding groove. The ends of the adjusting strip (10) and the connecting piece (11) extend into the arc-shaped sliding groove and are locked and positioned by the threaded cap.

7. A portable cutting machine with a two-way grip handle according to claim 1, characterized in that, The pumping assembly includes a gear chamber (28) fixedly connected to the outer wall of the front side of the outlet pipe (27). Two rotors (34) are rotatably connected to the inner wall of the gear chamber (28). A drive shaft (33) driven by a motor is provided at the bottom of the gear chamber (28). A transmission shaft (32) is connected to the outer wall of the drive shaft (33) through two meshing gears. The transmission shaft (32) passes through the gear chamber (28). The part of the transmission shaft (32) located in the inner cavity of the gear chamber (28) is fixedly connected to the rotor (34) at the bottom, and is used to drive the rotor (34) to rotate to generate pumping water pressure.

8. A portable cutting machine with a two-way grip handle according to claim 1, characterized in that, The sealing assembly includes a sealing chamber (29) fixedly connected to the outer wall behind the water outlet pipe (27). A sealing plate (31) is slidably connected to the inner wall of the sealing chamber (29). A connecting frame (36) is fixedly connected to the top of the sealing plate (31). A support frame (37) is sleeved on the outer wall of the connecting frame (36). A return spring is provided between the support frame (37) and the connecting frame (36). A cam (30) abuts against the bottom of the connecting frame (36). A rotating rod (35) is fixedly connected to the outer periphery of the cam (30). The end of the rotating rod (35) is connected to the drive shaft (32) via a synchronous belt and synchronous pulley.

9. A portable cutting machine with a two-way grip handle according to claim 1, characterized in that, The upper outer wall of the operating handle (4) on the right side is equipped with a locking button (13) for locking the motor's start state. The inner side of the operating handle (4) on the right side is equipped with a start button (14) for controlling the motor in the drive compartment (2) to start or stop.

10. A portable cutting machine with a two-way grip handle according to claim 1, characterized in that, The water storage tank (3) has a water inlet (21) on the top outer wall of the rear side. The output end of the water inlet (21) is equipped with a sealing cap. The water storage tank (3) has a locking block (23) fixedly connected to the rear side of the inner wall. The water inlet pipe (22) has a soft rubber retaining ring (24) fixed on the outer wall of the rear side. The locking block (23) has a retaining groove on both the front and rear inner walls that is compatible with the retaining ring (24). The water inlet pipe (22) has a water inlet (25) for water intake on the front side.

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