CN213674835U - Improved handheld cutting machine adopting high-frequency power supply - Google Patents

Abstract

The utility model discloses an adopt handheld cutting machine of improved generation of high frequency power supply, include: the handheld power piece comprises a handheld piece and a power piece, and the power piece is arranged on the handheld piece; the hand-held piece comprises a front end hand-held piece and a rear end hand-held piece, and the rear end hand-held piece is arranged on the front end hand-held piece; the quick mounting connecting piece is arranged on the handheld power piece and comprises a transmission shell, a power transmission piece and a fixing piece, the transmission shell is arranged on the handheld shell at the front end, and the power transmission piece and the fixing piece are both arranged on the transmission shell; the multifunctional joint piece is arranged on the quick mounting connecting piece and comprises a support frame and a rotary transmission piece, and the support frame is arranged on the transmission shell. The utility model has the advantages of reasonable design, output is high, electric energy utilization is high, the cutting is of high quality, can quick replacement multifunctional joint spare, and the hand-held piece can adjust length as required, can improve the staff and grip the comfort level, improves work efficiency and reduces intensity of labour.

Description

Improved handheld cutting machine adopting high-frequency power supply

Technical Field

The invention relates to the technical field of cutting machinery, in particular to an improved handheld cutting machine adopting a high-frequency power supply.

Background

The high-frequency power supply is an alternating current power supply with high frequency, and the use of the high-frequency power supply can reduce the volume of equipment, reduce the weight of the equipment, reduce the magnetic loss and improve the utilization rate of the power supply. The handheld cutting machine can be used for cutting operation of stones and the like, the power of the finger cutting machine, the electric energy utilization rate, the working efficiency and the processing quality can be effectively improved by the matching of the high-frequency power supply and the handheld cutting machine, and the labor intensity of workers is reduced. But current cutting machine cutting aircraft nose is fixed, need change different cutting machines when cutting different materials or different shape objects, is showing and is reducing cutting operation efficiency.

Disclosure of Invention

In order to overcome the defects, the invention provides an improved handheld cutting machine adopting a high-frequency power supply, which specifically adopts the following technical scheme:

an improved hand-held cutting machine employing a high frequency power supply, comprising:

a hand-held power member comprising a hand-held member and a power member, the power member being disposed on the hand-held member; the hand-held piece comprises a front end hand-held piece and a rear end hand-held piece, and the rear end hand-held piece is arranged on the front end hand-held piece; the front end handpiece comprises a front end handpiece shell;

the quick mounting connecting piece is arranged on the handheld power piece and comprises a transmission shell, a power transmission piece and a fixing piece, the transmission shell is arranged on the front-end handheld shell, and the power transmission piece and the fixing piece are both arranged on the transmission shell; the power transmission part comprises a transmission pipe, the fixing part comprises a fixing buckling piece, a fastening buckling piece and a locking pipe, and the fixing buckling head, the fastening buckling piece and the locking pipe are all arranged on the transmission pipe;

the multifunctional joint piece is arranged on the quick mounting connecting piece and comprises a supporting frame and a rotary transmission piece, the supporting frame is arranged on the transmission shell, and the rotary transmission piece is arranged on the supporting frame; the fastening buckling piece is tightly extruded on the rotary transmission piece through the fixing buckling piece so as to realize the quick connection of the multifunctional joint piece and the quick installation connecting piece.

Preferably, the front end handpiece further comprises a front end handle disposed on the front end handpiece shell; the front-end handheld shell is barrel-shaped, one end face of the front-end handheld shell is closed, the other end face of the front-end handheld shell is open, a switch through hole and a cable penetrating hole are formed in the side wall of one end of the front-end handheld shell, a power switch is embedded in the switch through hole and electrically connected with the power part, a power cable is embedded in the cable penetrating hole and electrically connected with the power part; a first external thread is arranged on the outer side wall of the other end of the front-end handheld shell.

Preferably, the rear-end handpiece comprises a rear-end handpiece shell, a fastening locking ring, a cable fixing piece and a rear-end gripping piece, the rear-end handpiece shell and the fastening locking ring are both arranged on the front-end handpiece shell, and the cable fixing piece and the rear-end gripping piece are both arranged on the rear-end handpiece shell; the rear-end handheld shell is barrel-shaped, one end face of the rear-end handheld shell is open, the other end face of the rear-end handheld shell is closed, a first internal thread is arranged on the inner side wall of one end of the rear-end handheld shell, the first internal thread is matched with the first external thread, and the rear-end handheld shell is sleeved on the other end of the front-end handheld shell through the first internal thread; the outer side wall of the rear-end handheld shell is provided with a plurality of fastening threaded holes, and the plurality of fastening threaded holes are uniformly distributed along the circumferential direction of the rear-end handheld shell; a plurality of handle rotating through holes and a plurality of handle fixing through holes are formed in the other end face of the rear-end handheld shell, and are uniformly distributed around the handle rotating through holes;

the fastening locking ring is in a circular tube shape, a second internal thread is arranged on the inner side wall of the fastening locking ring, the second internal thread is matched with the first external thread, and the fastening locking ring is sleeved on the front-end handheld shell through the second internal thread; the cable fixing part comprises a fastening screw and a cable clamp, the cable clamp is arranged on the fastening screw, the fastening screw is matched with the fastening threaded hole, the fastening screw is embedded in the fastening threaded hole, and the cable clamp is used for clamping the power cable.

Preferably, the rear end grip includes a handle rotation adjuster provided on the rear end hand grip case and a rear end handle provided on the handle rotation adjuster; the handle rotation adjusting piece comprises a handle rotation adjusting seat, a rotating shaft, a fixed shaft and a compression spring, wherein the rotating shaft and the fixed shaft are both arranged on the handle rotation adjusting seat, and the compression spring is arranged on the rotating shaft; one end of the rotating shaft is fixedly arranged at the center of the handle rotation adjusting seat, the other end of the rotating shaft is provided with a blocking plate, and the diameter of the blocking plate is larger than that of the rotating shaft; the fixed shafts are uniformly arranged on the handle rotation adjusting seat; the handle rotation adjusting piece is arranged on the other end face of the rear-end handheld shell through the rotating shaft and the fixing shaft, the rotating shaft is embedded in the handle rotation through hole, and the fixing shaft is embedded in the handle fixing through hole one by one; the compression spring is sleeved on the rotating shaft and is positioned between the stop plate and the other end surface of the rear-end handheld shell, and the free length of the compression spring is greater than the length of the rotating shaft; the rear end handle is fixedly arranged on the handle rotation adjusting seat.

Preferably, the power part comprises a power motor and a power station, the power motor is arranged in the front-end handheld shell, the power station is arranged independently, and the power station is connected with the power motor; the power motor is embedded in the front-end handheld shell, the power station is a high-frequency power station, the power station is electrically connected with the power motor through the power cable, and the power station can provide a high-frequency power supply for the power motor.

Preferably, the transmission shell is in a cylindrical tubular shape, two end faces of the transmission shell are both closed, a circle center of each of the two end faces of the transmission shell is provided with a first rotating through hole, and a rotating bearing is embedded in each first rotating through hole; a fixing plate is arranged on one end face of the transmission shell, a fixing through hole and a plurality of fixing holes are formed in the fixing plate, the fixing through hole is located in the circle center of the fixing plate, the diameter of the fixing through hole is not smaller than that of the first rotating through hole, and the plurality of fixing holes are uniformly distributed in the edge of the fixing plate; the transmission shell is arranged on one end side wall of the front-end handheld shell, and the transmission shell is communicated with the front-end handheld shell.

Preferably, the power transmission part further comprises a worm wheel, a worm and a first transmission plate, the transmission pipe is arranged on the transmission shell, the worm wheel and the first transmission plate are both arranged on the transmission pipe, and the worm is arranged on the power motor; the length of the transmission pipe is greater than that of the transmission shell, the transmission pipe is embedded in the rotary bearing, one end of the transmission pipe is provided with a second external thread and a plurality of fastening through holes, and the plurality of fastening through holes are uniformly distributed around the circumference of the transmission pipe; the worm gear is sleeved on the transmission pipe and is positioned in the transmission shell, the worm is fixedly arranged on a rotating shaft of the power motor, and the axis of the transmission pipe is superposed with the axis of the rotating shaft of the power motor; the first transmission plate is plate-shaped, a first transmission through hole and a transmission hole are formed in the first transmission plate, the first transmission through hole is located in the circle center of the first transmission plate, the inner diameter of the first transmission through hole is the same as the outer diameter of the transmission pipe, and the first transmission plate is fixedly sleeved at the other end of the transmission pipe through the first transmission through hole; the transmission holes are arranged in a plurality and are uniformly distributed on the edge of the first transmission plate.

Preferably, both ends of the fixing buckling piece are in a rounded curved surface shape, the fixing buckling piece is provided with a plurality of fixing buckling pieces, the fixing buckling pieces are correspondingly embedded in the fastening through holes one by one, and the fixing buckling pieces can move in the fastening through holes along the radial direction of the front-end handheld shell; the fastening and buckling piece comprises a fastening and buckling circular tube and a fastening and buckling flared tube, the fastening and buckling circular tube is arranged on the transmission tube, and the fastening and buckling flared tube is arranged on the fastening and buckling circular tube; the fastening is detained and is provided with the third internal thread in putting the pipe, the third internal thread with the cooperation of second external screw thread, the fastening is detained and is put the pipe and pass through the third internal thread suit is in driving tube one end, the fastening is detained and is put the horn pipe box-packed and be in driving tube one end, and the fastening is detained and is put the fixed setting of horn pipe microcephaly the fastening is detained and is put pipe one end, and makes fixed knot is put the piece and is located the fastening is detained and is put the horn pipe.

Preferably, a fourth internal thread is arranged on the inner side wall of the locking pipe, the fourth internal thread is matched with the second external thread, and the locking pipe is sleeved on the transmission pipe through the fourth internal thread; the mounting still includes the protection casing, the protection casing includes protecting tube and guard plate, protecting tube one end sets up on another terminal surface of driving shell, the guard plate passes through the hinge and the setting of hasp is in on the protecting tube other end.

Preferably, the support frame comprises a support plate, a support rod and a support bearing, and the support rod and the support bearing are both arranged on the support plate; a supporting through hole is formed in the circle center of the supporting plate, and the supporting bearing is embedded in the supporting through hole; the diameter of the supporting rod is the same as that of the fixing hole, the supporting rod is vertically arranged on the supporting plate, and the distance between the supporting rod and the circle center of the supporting plate is the same as the distance between the fixing hole and the circle center of the fixing plate; the supporting plates are arranged on the supporting plates, and the supporting rods are uniformly distributed on the supporting plates; the supporting rod corresponds to the fixing hole in position, so that the supporting rod can be inserted into the fixing hole;

the rotary transmission part comprises a rotary transmission shaft, a second transmission plate and a rotary transmission rod, the rotary transmission shaft is embedded on the support bearing, the second transmission plate is arranged on the rotary transmission shaft, and the rotary transmission rod is arranged on the second transmission plate; an axial thread is arranged on the side wall of one end of the rotating transmission shaft, a nut is sleeved on the axial thread, and the nut is matched with the axial thread; a fixing groove is formed in the side wall of the other end of the rotating transmission shaft, the fixing groove is annular, and the axis of the fixing groove is overlapped with the axis of the rotating transmission shaft;

the diameter of the second transmission plate is smaller than the distance between the support rod and the circle center of the support plate, a second transmission through hole is formed in the circle center of the second transmission plate, and the second transmission plate is fixedly sleeved on the rotary transmission shaft through the second transmission through hole; the diameter of the rotary transmission rod is the same as that of the transmission hole, the rotary transmission rod is vertically and fixedly arranged on the second transmission plate, and the distance from the rotary transmission rod to the circle center of the second transmission plate is the same as the distance from the transmission hole to the circle center of the first transmission plate; the rotary transmission rods are arranged in a plurality and are uniformly distributed on the second transmission plate, and the rotary transmission rods correspond to the transmission holes in position, so that the rotary transmission rods can be inserted into the transmission holes.

The invention at least comprises the following beneficial effects:

1) the improved handheld cutting machine adopting the high-frequency power supply has the advantages of reasonable structural design, high output power, high electric energy utilization rate, good cutting quality and capability of quickly replacing the multifunctional joint piece, the length of the handheld piece can be adjusted according to the requirement, the holding comfort of workers can be improved, the working efficiency is improved, and the labor intensity is reduced;

2) the improved handheld cutting machine adopting the high-frequency power supply is provided with the handheld piece, the handheld piece comprises a front handheld piece and a rear handheld piece, the front handheld piece comprises a front handheld shell, the rear handheld piece comprises a rear handheld shell, the front handheld shell is provided with a first external thread, the rear handheld shell is provided with a first internal thread, the first internal thread is matched with the first external thread, the rear handheld shell is sleeved on the front handheld shell through the first internal thread, and the length of the handheld piece is adjusted through the first internal thread and the first external thread, so that the use requirement is met, the holding comfort of workers is improved, the working efficiency is improved, and the labor intensity is reduced;

3) the improved handheld cutting machine adopting the high-frequency power supply is provided with the quick mounting connecting piece and the multifunctional joint, wherein the quick mounting connecting piece comprises a power transmission piece and a fixing piece, the power transmission piece comprises a transmission pipe, and the fixing piece comprises a fixing buckling piece, a fastening buckling piece and a locking pipe; the multifunctional joint piece comprises a rotary transmission piece, the rotary transmission piece comprises a rotary transmission shaft, and the fastening buckle piece can be used for quickly connecting the rotary transmission shaft to the transmission pipe through the fixing buckle piece so as to realize quick replacement of the multifunctional joint piece.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a schematic diagram of a right perspective view of an improved hand held cutting machine of the present invention employing a high frequency power supply;

FIG. 2 is a schematic left side perspective view of an improved hand held cutting machine of the present invention employing a high frequency power supply;

FIG. 3 is a schematic left-side perspective view of the improved hand-held cutting machine with the high frequency power supply of the present invention with the protective cover removed;

FIG. 4 is a front elevational view of the improved hand-held cutting machine of the present invention with the high frequency power supply removed from the protective cover;

FIG. 5 is a front left view of the improved hand-held cutting machine of the present invention with the high frequency power supply removed from the shield;

FIG. 6 is a sectional view taken along the line F-F in FIG. 5 of the improved hand-held cutting machine of the present invention employing a high frequency power source;

FIG. 7 is a longitudinal cross-sectional view of an improved hand held cutting machine of the present invention employing a high frequency power source;

FIG. 8 is a schematic left side perspective view of a multi-function connector assembly for use in the improved hand held cutting machine of the present invention utilizing a high frequency power source;

FIG. 9 is a schematic diagram of a right perspective view of a multi-function connector assembly for use in the improved hand held cutting machine of the present invention utilizing a high frequency power source;

fig. 10 is a front view of the multi-function connector assembly of the improved hand held cutting machine of the present invention utilizing a high frequency power source.

Wherein: 1-front-end hand-held shell, 2-front-end handle, 3-power switch, 4-power cable, 5-first external thread, 6-rear-end hand-held shell, 7-fastening locking ring, 8-fastening threaded hole, 9-cable fixing piece, 10-rear-end handle, 11-handle rotation adjusting seat, 12-rotating shaft, 13-fixing shaft, 14-compression spring, 15-blocking plate, 16-power motor, 17-transmission shell, 18-rotating bearing, 19-fixing plate, 20-fixing hole, 21-transmission tube, 22-worm wheel, 23-worm, 24-first transmission plate, 25-second external thread, 26-transmission hole, 27-fixing fastening piece, 28-locking tube, 29-protective cover, 30-fastening and fastening round tube, 31-fastening and fastening flared tube, 32-support plate, 33-support rod, 35-rotating transmission shaft, 36-second transmission plate, 37-rotating transmission rod, 38-nut, 39-fixing groove and 40-circular saw.

Detailed Description

Technical solutions of the present invention will be described in detail below by way of embodiments with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, B exists alone, and A and B exist at the same time, and the term "/and" is used herein to describe another association object relationship, which means that two relationships may exist, for example, A/and B, may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.

Referring to fig. 1 to 10, an improved hand-held cutting machine using a high frequency power source includes a hand-held power member, a quick-mount connector provided on the hand-held power member, and a multi-function connector provided on the quick-mount connector. The handheld power piece comprises a handheld piece and a power piece, and the power piece is arranged on the handheld piece.

The hand-held piece includes front end hand-held piece and rear end hand-held piece, the rear end hand-held piece sets up on the front end hand-held piece. The front end handheld piece comprises a front end handheld shell 1 and a front end handle 2, wherein the front end handle 2 is arranged on the front end handheld shell 1. The handheld shell 1 of front end is the tubbiness, the handheld shell 1 of front end one end is sealed, and another terminal surface is open, be provided with switch through hole and cable and wear the hole on the handheld shell 1 one end lateral wall of front end, switch 3 is inlayed to the switch through hole, switch 3 with the power part electricity is connected, it is inlayed and is equipped with power cable 4 in the cable penetration hole, power cable 4 with the power part electricity is connected. And a first external thread 5 is arranged on the outer side wall of the other end of the front-end handheld shell 1. The front end handle 2 is arranged on the side wall of one end of the front end handheld shell 1.

The rear-end handheld piece comprises a rear-end handheld shell 6, a fastening locking ring 7, a cable fixing piece 9 and a rear-end holding piece, wherein the rear-end handheld shell 6 and the fastening locking ring 7 are arranged on the front-end handheld shell 1, the cable fixing piece 9 and the rear-end holding piece are arranged on the rear-end handheld shell 6, the rear-end handheld shell 6 is barrel-shaped, one end face of the rear-end handheld shell 6 is open, the other end face of the rear-end handheld shell is closed, a first internal thread is arranged on the inner side wall of one end of the rear-end handheld shell 6 and matched with the first external thread 5, the rear-end handheld shell 6 is sleeved on the other end of the front-end handheld shell 1 through the first internal thread and is used for adjusting the length of the handheld piece by screwing the length of the first external thread 5, so that the working requirement is met, the holding comfort level of a worker is improved, and the cutting operation efficiency is improved, and the labor intensity of workers is reduced.

Be provided with fastening screw hole 8 on the handheld shell of rear end 6 lateral wall, fastening screw hole 8 is provided with eight, eight fastening screw hole 8 is followed 6 circumference evenly distributed of handheld shell of rear end. The other end face of the rear-end handheld shell 6 is provided with a handle rotating through hole and four handle fixing through holes, the handle rotating through hole is located in the circle center of the other end face of the rear-end handheld shell 6, and the four handle fixing through holes surround the handle rotating through holes and are evenly distributed. The handle rotation through hole and the handle fixation through hole are used for being connected with the rear end gripping member.

The fastening locking ring 7 is in a circular tube shape, a second internal thread is arranged on the inner side wall of the fastening locking ring 7, the second internal thread is matched with the first external thread 5, and the fastening locking ring 7 is sleeved on the front-end handheld shell 1 through the second internal thread. When the length of the hand piece is adjusted to a proper length, the fastening locking ring 7 is screwed to enable the fastening locking ring 7 to be tightly attached to one end face of the rear-end hand-held shell 6, so that the length of the hand piece is locked.

The cable fixing part 9 comprises a fastening screw and a cable clamp, the cable clamp is arranged on the fastening screw, the fastening screw is matched with the fastening threaded hole 8, the fastening screw is embedded in the fastening threaded hole 8, and the cable clamp is used for clamping the power cable 4. When the length of the hand piece is adjusted to a proper length, the cable fixing piece 9 is embedded in the fastening threaded hole 8 at a proper position through the fastening screw, so that the clamped power cable 4 is always positioned on the opposite side of the cutting side, and the safety and the cleanness of the power cable 4 are ensured.

The rear end gripper includes a handle rotation adjuster provided on the rear end hand-held case 6 and a rear end handle 10 provided on the handle rotation adjuster. The handle rotation adjusting piece comprises a handle rotation adjusting seat 11, a rotating shaft 12, a fixed shaft 13 and a compression spring 14, wherein the rotating shaft 12 and the fixed shaft 13 are arranged on the handle rotation adjusting seat 11, and the compression spring 14 is arranged on the rotating shaft 12. The handle rotation adjusting seat 11 is cross, 12 one ends of the rotating shafts are fixedly arranged at the center of the handle rotation adjusting seat 11, the other ends of the rotating shafts 12 are provided with stop plates 15, and the diameter of each stop plate 15 is larger than that of the rotating shaft 12. The number of the fixed shafts 13 is four, and the four fixed shafts 13 are correspondingly arranged at four ends of the handle rotation adjusting seat 11 one by one. The handle rotation adjusting member is disposed on the other end surface of the rear hand-held housing 6 through the rotating shaft 12 and the fixing shaft 13, the rotating shaft 12 is fitted in the handle rotation through hole, and the fixing shafts 13 are fitted in the handle fixing through hole one by one. The compression spring 14 is sleeved on the rotating shaft 12, the compression spring 14 is positioned between the stop plate 15 and the other end face of the rear-end handheld shell 6, and the free length of the compression spring 14 is larger than that of the rotating shaft 12. The handle rotation adjusting seat 11 is tightly fixed on the other end surface of the rear handheld shell 6 through a compression spring 14. The rear end handle 10 is fixedly arranged on the handle rotation adjusting seat 11, when the rear end handle 10 needs to be adjusted to a proper angle, the rear end handle is pulled forcefully along the axis direction of the rear end handheld shell 6, the fixing shaft 13 is pulled out of the handle fixing through hole and then rotates to a proper angle, and then the handle is loosened to enable the fixing shaft 13 to be embedded into a new handle fixing through hole, so that the operation can be completed. The rear end handle 10 angular adjustment can improve the staff and grip comfort level and cutting work efficiency after suitable angle, reduces staff intensity of labour.

The power part comprises a power motor 16 and a power station (not shown in the figure), the power motor 16 is arranged in the front-end handheld shell 1, the power station is arranged independently, and the power station is connected with the power motor 16. The power motor 16 is embedded in the front-end handheld shell 1, the power station is a high-frequency power station, the power station is electrically connected with the power motor 16 through the power cable 4, and the power station can provide a high-frequency power supply for the power motor 16. The power, the electric energy utilization rate, the working efficiency and the processing quality of the handheld cutting machine are improved, and the labor intensity is reduced.

Quick erection joint spare includes driving shell 17, power transmission spare and mounting, driving shell 17 sets up on the handheld shell of front end 1, power transmission spare with the mounting all sets up on the driving shell 17. The transmission shell 17 is in a cylindrical tubular shape, two end faces of the transmission shell 17 are sealed, circle centers of the two end faces of the transmission shell 17 are provided with first rotating through holes, and each first rotating through hole is internally embedded with a rotating bearing 18. Be provided with fixed plate 19 on the driving shell 17 one terminal surface, be provided with fixed through hole and fixed orifices 20 on the fixed plate 19, fixed through hole is located the 19 centre of a circle department of fixed plate, fixed through hole diameter is not less than first rotatory through hole diameter, fixed orifices 20 is provided with two, two fixed orifices 20 evenly distributed is in fixed plate 19 edge. The transmission shell 17 is arranged on one end side wall of the front end handheld shell 1, and the transmission shell 17 is communicated with the front end handheld shell 1.

The power transmission part comprises a transmission pipe 21, a worm wheel 22, a worm 23 and a first transmission plate 24, the transmission pipe 21 is arranged on the transmission shell 17, the worm wheel 22 and the first transmission plate 24 are both arranged on the transmission pipe 21, and the worm 23 is arranged on the power motor 16. The length of the transmission pipe 21 is larger than that of the transmission shell 17, the transmission pipe 21 is embedded in the rotary bearing 18, a second external thread 25 and fastening through holes are formed in one end of the transmission pipe 21, the fastening through holes are rectangular, eight fastening through holes are formed in the fastening through holes, and the fastening through holes surround the transmission pipe 21 and are evenly distributed in the circumferential direction. The worm wheel 22 is sleeved on the transmission pipe 21, the worm wheel 22 is positioned in the transmission shell 17, the worm 23 is fixedly arranged on the rotating shaft of the power motor 16, and the axis of the transmission pipe 21 is overlapped with the axis of the rotating shaft of the power motor 16. The first transmission plate 24 is plate-shaped, a first transmission through hole and a transmission hole 26 are formed in the first transmission plate 24, the first transmission through hole is located in the circle center of the first transmission plate 24, the inner diameter of the first transmission through hole is the same as the outer diameter of the transmission pipe 21, and the first transmission plate 24 is fixedly sleeved at the other end of the transmission pipe 21 through the first transmission through hole. The number of the transmission holes 26 is three, and the three transmission holes 26 are uniformly distributed at the edge of the first transmission plate 24.

The mounting is detained including fixed knot and is put piece 27, fastening, locking pipe 28 and protection casing 29, fixed the knot put the head the fastening detain put the piece with locking pipe 28 all sets up on the transmission pipe 21, protection casing 29 sets up on the transmission shell 17. The fixing buckle piece 27 is in a sheet shape, both ends of the fixing buckle piece 27 are in a round-corner curved surface shape, eight pieces of the fixing buckle piece 27 are arranged on the fixing buckle piece 27, the fixing buckle piece 27 is correspondingly embedded into the fastening through hole one by one, and the fixing buckle piece 27 can move in the fastening through hole along the radial direction of the front-end handheld shell 1. The fastening buckle is put the piece and is put pipe 30 and fastening buckle and put horn pipe 31 including the fastening buckle, the fastening buckle is put pipe 30 and is set up on the driving pipe 21, the fastening buckle is put horn pipe 31 and is set up the fastening buckle is put on pipe 30. The fastening is detained and is provided with the third internal thread in putting pipe 30, the third internal thread with the cooperation of second external thread 25, the fastening is detained and is put pipe 30 and pass through the third internal thread suit is in driving pipe 21 one end, the fastening is detained and is put the bell pipe 31 suit in driving pipe 21 one end, and the fastening is detained and is put the fixed setting of bell pipe 31 microcephaly the fastening is detained and is put pipe 30 one end, and makes fixed knot puts piece 27 and is located the fastening is detained and is put the bell pipe 31. When the fastening detain put the pipe 30 to when 21 one end of driving pipe was removed, the fastening is detained and is put pipe 30 and will drive the fastening detain put horn tube 31 to 21 one end of driving pipe is removed, the fastening is detained and is put 31 inside walls of horn tube and will implement the extrusion to fixed knot 27 one end of detaining, and then makes fixed knot 27 to the handheld shell of front end 1 axis direction removes, finally makes fixed knot 27 other end closely extrudees on the multifunctional joint spare to accomplish the multifunctional joint spare with quick erection joint spare is connected.

Be provided with the fourth internal thread on the locking pipe 28 inside wall, the fourth internal thread with the cooperation of second external thread 25, locking pipe 28 passes through the fourth internal thread suit is in on the driving pipe 21. When the fastening buckle is provided with the horn tube 31, the other end of the fixing buckle sheet 27 is tightly extruded behind the multifunctional joint piece, one end of the locking tube 28 is tightly extruded on the other end of the fastening buckle round tube 30, so that the fastening buckle round tube 30 is locked to move towards the other end of the transmission tube 21, and the multifunctional joint piece is firmly connected with the quick installation connecting piece. The protection casing 29 includes protecting tube and guard plate, protecting tube one end sets up on the other terminal surface of driving shell 17, the guard plate passes through the hinge and the hasp sets up on the protecting tube other end, the protection casing 29 will the mounting wraps up in inside completely, in order to prevent the incident takes place when the mounting is high-speed rotatory.

The multifunctional joint piece comprises a support frame and a rotary transmission piece, the support frame is arranged on the transmission shell 17, and the rotary transmission piece is arranged on the support frame. The support frame includes backup pad 32, bracing piece 33 and support bearing, the bracing piece 33 with support bearing all sets up on the backup pad 32. The supporting plate 32 is plate-shaped, a supporting through hole is formed in the circle center of the supporting plate 32, and the supporting bearing is embedded in the supporting through hole. The diameter of the support rod 33 is the same as that of the fixing hole 20, the support rod 33 is vertically arranged on the support plate 32, and the distance between the support rod 33 and the center of the circle of the support plate 32 is the same as that between the fixing hole 20 and the center of the circle of the fixing plate 19. The number of the support rods 33 is two, and the two support rods 33 are uniformly distributed on the support plate 32. The support rod 33 corresponds to the fixing hole 20 in position, so that the support rod 33 can be inserted into the fixing hole 20.

The rotating transmission part comprises a rotating transmission shaft 35, a second transmission plate 36 and a rotating transmission rod 37, the rotating transmission shaft 35 is embedded on the supporting bearing, the second transmission plate 36 is arranged on the rotating transmission shaft 35, and the rotating transmission rod 37 is arranged on the second transmission plate 36. An axial thread is arranged on the side wall of one end of the rotating transmission shaft 35, a nut 38 is sleeved on the axial thread, and the nut 38 is matched with the axial thread. When it is desired to assemble the circular saw 40, trepan or chain saw, it is only necessary to fit the circular saw 40, trepan or chain saw over the axial thread and to secure the circular saw 40, trepan or chain saw to the rotary drive shaft 35 via the nut 38. The side wall of the other end of the rotating transmission shaft 35 is provided with a fixing groove 39, the fixing groove 39 is annular, and the axis of the fixing groove 39 is overlapped with the axis of the rotating transmission shaft 35. The distance between the fixing groove 39 and the second transmission plate 36 is the same as the distance between the fixing buckle piece 27 and the first transmission plate 24, and the other end of the fixing buckle piece 27 is tightly extruded in the fixing groove 39 to realize the connection between the quick mounting connector and the multifunctional connector.

The diameter of the second transmission plate 36 is smaller than the distance between the circle centers of the support rods 33 and the support plate 32, a second transmission through hole is formed in the circle center of the second transmission plate 36, and the second transmission plate 36 is fixedly sleeved on the rotating transmission shaft 35 through the second transmission through hole. The diameter of the rotary transmission rod 37 is the same as that of the transmission hole 26, the rotary transmission rod 37 is vertically and fixedly arranged on the second transmission plate 36, and the distance between the circle centers of the rotary transmission rod 37 and the second transmission plate 36 is the same as that between the circle centers of the transmission hole 26 and the first transmission plate 24. The number of the rotation transmission rods 37 is three, and the three rotation transmission rods 37 are uniformly distributed on the second transmission plate 36. The rotation transmission rod 37 corresponds to the transmission hole 26 in position, so that the rotation transmission rod 37 can be inserted into the transmission hole 26.

The multifunctional handheld cutting machine is at least provided with three sets of multifunctional joint pieces, and a circular saw 40, a circular saw and a long chain saw are sleeved on the transmission shaft on the multifunctional joint pieces one by one correspondingly. When it is desired to perform concrete cutting using the circular saw 40, first, the circular saw 40 is fitted over one end of the rotary drive shaft 35 of the multi-function joint member and fastened by the nut 38. Next, the other end of the rotary transmission shaft 35 is inserted into the transmission pipe 21, while the support rod 33 is inserted into the fixing hole 20 and the rotary transmission rod 37 is inserted into the transmission hole 26. And thirdly, screwing the fastening and buckling piece to move towards one end of the transmission pipe 21, so that the fastening and buckling flared pipe 31 extrudes one end of the fixing and buckling piece 27, and the other end of the fixing and buckling piece 27 is extruded tightly in the fixing groove 39, thereby completing the fastening of the multifunctional joint piece. When the cutting machine head needs to be replaced, only the multifunctional connector piece needs to be replaced.

The invention has the following beneficial effects:

the improved handheld cutting machine adopting the high-frequency power supply has the advantages of reasonable structural design, high output power, high electric energy utilization rate, good cutting quality and capability of quickly replacing the multifunctional joint piece, and the length of the handheld piece can be adjusted as required, so that the holding comfort of workers can be improved, the working efficiency is improved, and the labor intensity is reduced.

The improved handheld cutting machine adopting the high-frequency power supply is provided with the handheld piece, the handheld piece comprises a front handheld piece and a rear handheld piece, the front handheld piece comprises a front handheld shell, the rear handheld piece comprises a rear handheld shell, the front handheld shell is provided with a first external thread, the rear handheld shell is provided with a first internal thread, the first internal thread is matched with the first external thread, the rear handheld shell is sleeved on the front handheld shell through the first internal thread, and the length of the handheld piece is adjusted through the first internal thread and the first external thread, so that the use requirement is met, the holding comfort of workers is improved, the working efficiency is improved, and the labor intensity is reduced.

The improved handheld cutting machine adopting the high-frequency power supply is provided with the quick mounting connecting piece and the multifunctional joint, wherein the quick mounting connecting piece comprises a power transmission piece and a fixing piece, the power transmission piece comprises a transmission pipe, and the fixing piece comprises a fixing buckling piece, a fastening buckling piece and a locking pipe; the multifunctional joint piece comprises a rotary transmission piece, the rotary transmission piece comprises a rotary transmission shaft, and the fastening buckle piece can be used for quickly connecting the rotary transmission shaft to the transmission pipe through the fixing buckle piece so as to realize quick replacement of the multifunctional joint piece.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (10)

1. An improved hand-held cutting machine employing a high frequency power supply, comprising:

a hand-held power member comprising a hand-held member and a power member, the power member being disposed on the hand-held member; the hand-held piece comprises a front end hand-held piece and a rear end hand-held piece, and the rear end hand-held piece is arranged on the front end hand-held piece; the front end handpiece comprises a front end handpiece shell;

the quick mounting connecting piece is arranged on the handheld power piece and comprises a transmission shell, a power transmission piece and a fixing piece, the transmission shell is arranged on the front-end handheld shell, and the power transmission piece and the fixing piece are both arranged on the transmission shell; the power transmission part comprises a transmission pipe, the fixing part comprises a fixing buckling piece, a fastening buckling piece and a locking pipe, and the fixing buckling head, the fastening buckling piece and the locking pipe are all arranged on the transmission pipe;

the multifunctional joint piece is arranged on the quick mounting connecting piece and comprises a supporting frame and a rotary transmission piece, the supporting frame is arranged on the transmission shell, and the rotary transmission piece is arranged on the supporting frame; the fastening buckling piece is tightly extruded on the rotary transmission piece through the fixing buckling piece so as to realize the quick connection of the multifunctional joint piece and the quick installation connecting piece.

2. The improved hand-held cutting machine with high frequency power supply of claim 1, wherein said front end handpiece further comprises a front end handle, said front end handle being disposed on said front end handpiece; the front-end handheld shell is barrel-shaped, one end face of the front-end handheld shell is closed, the other end face of the front-end handheld shell is open, a switch through hole and a cable penetrating hole are formed in the side wall of one end of the front-end handheld shell, a power switch is embedded in the switch through hole and electrically connected with the power part, a power cable is embedded in the cable penetrating hole and electrically connected with the power part; a first external thread is arranged on the outer side wall of the other end of the front-end handheld shell.

3. The improved handheld cutter using high frequency power supply of claim 2, wherein said rear hand piece comprises a rear hand piece housing, a fastening locking ring, a cable fixture and a rear grip piece, said rear hand piece housing and said fastening locking ring being disposed on said front hand piece housing, said cable fixture and said rear grip piece being disposed on said rear hand piece housing; the rear-end handheld shell is barrel-shaped, one end face of the rear-end handheld shell is open, the other end face of the rear-end handheld shell is closed, a first internal thread is arranged on the inner side wall of one end of the rear-end handheld shell, the first internal thread is matched with the first external thread, and the rear-end handheld shell is sleeved on the other end of the front-end handheld shell through the first internal thread; the outer side wall of the rear-end handheld shell is provided with a plurality of fastening threaded holes, and the plurality of fastening threaded holes are uniformly distributed along the circumferential direction of the rear-end handheld shell; a plurality of handle rotating through holes and a plurality of handle fixing through holes are formed in the other end face of the rear-end handheld shell, and are uniformly distributed around the handle rotating through holes;

the fastening locking ring is in a circular tube shape, a second internal thread is arranged on the inner side wall of the fastening locking ring, the second internal thread is matched with the first external thread, and the fastening locking ring is sleeved on the front-end handheld shell through the second internal thread; the cable fixing part comprises a fastening screw and a cable clamp, the cable clamp is arranged on the fastening screw, the fastening screw is matched with the fastening threaded hole, the fastening screw is embedded in the fastening threaded hole, and the cable clamp is used for clamping the power cable.

4. The improved hand-held cutting machine using a high frequency power supply according to claim 3, wherein said rear end grip member includes a handle rotation adjusting member provided on said rear end hand-held housing and a rear end handle provided on said handle rotation adjusting member; the handle rotation adjusting piece comprises a handle rotation adjusting seat, a rotating shaft, a fixed shaft and a compression spring, wherein the rotating shaft and the fixed shaft are both arranged on the handle rotation adjusting seat, and the compression spring is arranged on the rotating shaft; one end of the rotating shaft is fixedly arranged at the center of the handle rotation adjusting seat, the other end of the rotating shaft is provided with a blocking plate, and the diameter of the blocking plate is larger than that of the rotating shaft; the fixed shafts are uniformly arranged on the handle rotation adjusting seat; the handle rotation adjusting piece is arranged on the other end face of the rear-end handheld shell through the rotating shaft and the fixing shaft, the rotating shaft is embedded in the handle rotation through hole, and the fixing shaft is embedded in the handle fixing through hole one by one; the compression spring is sleeved on the rotating shaft and is positioned between the stop plate and the other end surface of the rear-end handheld shell, and the free length of the compression spring is greater than the length of the rotating shaft; the rear end handle is fixedly arranged on the handle rotation adjusting seat.

5. The improved handheld cutter adopting a high-frequency power supply as claimed in claim 3, wherein the power member comprises a power motor and a power station, the power motor is arranged in the front-end handheld shell, the power station is arranged independently, and the power station is connected with the power motor; the power motor is embedded in the front-end handheld shell, the power station is a high-frequency power station, the power station is electrically connected with the power motor through the power cable, and the power station can provide a high-frequency power supply for the power motor.

6. The improved handheld cutter adopting the high-frequency power supply as claimed in claim 5, wherein the transmission housing is in a cylindrical tube shape, two end faces of the transmission housing are both closed, a first rotation through hole is arranged at the circle center of each of the two end faces of the transmission housing, and a rotation bearing is embedded in each first rotation through hole; a fixing plate is arranged on one end face of the transmission shell, a fixing through hole and a plurality of fixing holes are formed in the fixing plate, the fixing through hole is located in the circle center of the fixing plate, the diameter of the fixing through hole is not smaller than that of the first rotating through hole, and the plurality of fixing holes are uniformly distributed in the edge of the fixing plate; the transmission shell is arranged on one end side wall of the front-end handheld shell, and the transmission shell is communicated with the front-end handheld shell.

7. The improved handheld cutter adopting the high-frequency power supply as claimed in claim 6, wherein the power transmission member further comprises a worm wheel, a worm and a first transmission plate, the transmission tube is arranged on the transmission shell, the worm wheel and the first transmission plate are both arranged on the transmission tube, and the worm is arranged on the power motor; the length of the transmission pipe is greater than that of the transmission shell, the transmission pipe is embedded in the rotary bearing, one end of the transmission pipe is provided with a second external thread and a plurality of fastening through holes, and the plurality of fastening through holes are uniformly distributed around the circumference of the transmission pipe; the worm gear is sleeved on the transmission pipe and is positioned in the transmission shell, the worm is fixedly arranged on a rotating shaft of the power motor, and the axis of the transmission pipe is superposed with the axis of the rotating shaft of the power motor; the first transmission plate is plate-shaped, a first transmission through hole and a transmission hole are formed in the first transmission plate, the first transmission through hole is located in the circle center of the first transmission plate, the inner diameter of the first transmission through hole is the same as the outer diameter of the transmission pipe, and the first transmission plate is fixedly sleeved at the other end of the transmission pipe through the first transmission through hole; the transmission holes are arranged in a plurality and are uniformly distributed on the edge of the first transmission plate.

8. The improved handheld cutter adopting the high-frequency power supply as claimed in claim 7, wherein both ends of the fixing fastening piece are in the shape of a rounded curved surface, the fixing fastening piece is provided with a plurality of fixing fastening pieces, the fixing fastening pieces are correspondingly embedded in the fastening through hole one by one, and the fixing fastening pieces can move in the fastening through hole along the radial direction of the front-end handheld shell; the fastening and buckling piece comprises a fastening and buckling circular tube and a fastening and buckling flared tube, the fastening and buckling circular tube is arranged on the transmission tube, and the fastening and buckling flared tube is arranged on the fastening and buckling circular tube; the fastening is detained and is provided with the third internal thread in putting the pipe, the third internal thread with the cooperation of second external screw thread, the fastening is detained and is put the pipe and pass through the third internal thread suit is in driving tube one end, the fastening is detained and is put the horn pipe box-packed and be in driving tube one end, and the fastening is detained and is put the fixed setting of horn pipe microcephaly the fastening is detained and is put pipe one end, and makes fixed knot is put the piece and is located the fastening is detained and is put the horn pipe.

9. The improved handheld cutter adopting the high-frequency power supply as claimed in claim 7, wherein a fourth internal thread is arranged on the inner side wall of the locking pipe, the fourth internal thread is matched with the second external thread, and the locking pipe is sleeved on the transmission pipe through the fourth internal thread; the mounting still includes the protection casing, the protection casing includes protecting tube and guard plate, protecting tube one end sets up on another terminal surface of driving shell, the guard plate passes through the hinge and the setting of hasp is in on the protecting tube other end.

10. The improved handheld cutter adopting the high-frequency power supply as claimed in claim 7, wherein the supporting frame comprises a supporting plate, a supporting rod and a supporting bearing, and the supporting rod and the supporting bearing are both arranged on the supporting plate; a supporting through hole is formed in the circle center of the supporting plate, and the supporting bearing is embedded in the supporting through hole; the diameter of the supporting rod is the same as that of the fixing hole, the supporting rod is vertically arranged on the supporting plate, and the distance between the supporting rod and the circle center of the supporting plate is the same as the distance between the fixing hole and the circle center of the fixing plate; the supporting plates are arranged on the supporting plates, and the supporting rods are uniformly distributed on the supporting plates; the supporting rod corresponds to the fixing hole in position, so that the supporting rod can be inserted into the fixing hole;

the rotary transmission part comprises a rotary transmission shaft, a second transmission plate and a rotary transmission rod, the rotary transmission shaft is embedded on the support bearing, the second transmission plate is arranged on the rotary transmission shaft, and the rotary transmission rod is arranged on the second transmission plate; an axial thread is arranged on the side wall of one end of the rotating transmission shaft, a nut is sleeved on the axial thread, and the nut is matched with the axial thread; a fixing groove is formed in the side wall of the other end of the rotating transmission shaft, the fixing groove is annular, and the axis of the fixing groove is overlapped with the axis of the rotating transmission shaft;

the diameter of the second transmission plate is smaller than the distance between the support rod and the circle center of the support plate, a second transmission through hole is formed in the circle center of the second transmission plate, and the second transmission plate is fixedly sleeved on the rotary transmission shaft through the second transmission through hole; the diameter of the rotary transmission rod is the same as that of the transmission hole, the rotary transmission rod is vertically and fixedly arranged on the second transmission plate, and the distance from the rotary transmission rod to the circle center of the second transmission plate is the same as the distance from the transmission hole to the circle center of the first transmission plate; the rotary transmission rods are arranged in a plurality and are uniformly distributed on the second transmission plate, and the rotary transmission rods correspond to the transmission holes in position, so that the rotary transmission rods can be inserted into the transmission holes.

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