A protective cover, a machine head shell and a cutting machine adopting the machine head shell

Abstract

The present application relates to the field of cutting machine, specifically a protective cover, a machine head shell and a cutting machine using the machine head shell, the cutting machine comprises a cutting machine body, the end of the cutting machine body is connected with a cutting machine blade, the end of the cutting machine body is connected with a machine head shell for isolating the cutting machine blade, the machine head shell comprises a protective shell for isolating the cutting machine blade;The protective shell comprises a protective shell body, a placing groove for placing the cutting machine blade is arranged on the protective shell body;The protective shell body is connected with the cutting machine body through a connecting part.The protective shell provided by the present application can play a good isolation effect, can well avoid the scattering of mud or soil, and avoid excessive mud scattering when the cutting machine is used.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cutting machines, in particular to a protective cover, a machine head shell and a cutting machine using the machine head shell. BACKGROUND

[0002] At present, in the process of hidden engineering construction in offices and home rooms, circuit pipe lines, water and gas pipe laying, television and communication line pipe laying are needed, and wall cutting machines are generally used to groove on the ground or walls. Since the wall cutting machine has high grooving efficiency, its working speed is several times that of manual electric pick grooving, and therefore it is very popular among users. However, when the cutting blade of the cutting machine cuts the wall or the ground, a large amount of mud or mud blocks will be formed. Since the cutting blade of the cutting machine has a high rotating speed, the cut mud or mud blocks will be scattered, which affects the working environment of the operator. Therefore, a machine head shell capable of being assembled on the cutting machine to reduce or prevent the excessive scattering of mud or mud blocks is needed. SUMMARY

[0003] The present application aims to overcome the shortcomings of the prior art and provide a new cutting machine capable of effectively preventing the wide scattering of mud, mud water or mud blocks caused by the cutting blade of the cutting machine.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0005] A multifunctional cutting machine, comprising a cutting machine body, wherein an end of the cutting machine body is connected with a cutting blade, and the end of the cutting machine body is connected with a machine head shell used for isolating the cutting blade, and the machine head shell comprises a protective shell used for isolating the cutting blade; the protective shell comprises a protective shell body, and a placing groove for placing the cutting blade is arranged on the protective shell body; and the protective shell body is connected with the cutting machine body through a connecting component.

[0006] A spraying assembly for heat dissipation of the cutting blade is arranged on the protective shell body, and the spraying assembly comprises a spraying pipe arranged on the protective shell body, a spraying port is arranged on one side of the end of the spraying pipe facing the cutting blade, and a water supply pipeline for water supply is connected with the spraying pipe.

[0007] The spraying pipes are arranged in pairs, and the pairs of spraying pipes are arranged on opposite sides of the protective shell body.

[0008] A control valve for adjusting the water supply flow is arranged on the water supply pipeline.

[0009] A backflow component for blocking the rapid loss of cooling water is further arranged on the protective shell, and the backflow component comprises a blocking plate arranged on the protective shell body, the blocking plate is arranged at the end of the placing groove, and the blocking plate extends from the outer side of the protective shell body to the direction of the placing groove.

[0010] The blocking plate is connected with the protective shell body through a rotating part.

[0011] The rotating part comprises a rotating sleeve connected with the blocking plate, and the rotating sleeve is movably connected with the protective shell body, and the blocking plate can rotate relative to the protective shell body.

[0012] A reset spring for resetting the blocking plate is arranged between the blocking plate and the protective shell body.

[0013] The protective cover is movably connected with the end of the protective shell body, and the protective cover comprises a protective cover body, and a transition groove for avoiding affecting the rotation of the cutting machine blade is arranged on the side of the protective cover body close to the cutting machine blade.

[0014] The protective cover body comprises a base plate, and a blocking block for blocking mud is arranged on the side of the base plate close to the cutting machine blade, and the transition groove is arranged through the blocking block.

[0015] A first drainage groove is arranged on the blocking block, and the first drainage groove is in communication with the transition groove; and the first drainage groove is arranged vertically to the cutting machine blade.

[0016] A second drainage groove is arranged on the end of the blocking block close to the protective shell body, and the second drainage groove is in communication with the first drainage groove through the transition groove.

[0017] A drainage baffle is arranged in the second drainage groove; and the drainage baffle extends towards the cutting machine blade.

[0018] The length of the blocking block is less than the length of the base plate, and the distance between the end of the base plate away from the protective shell body and the protective shell body is greater than the distance between the end of the blocking block away from the protective shell body and the protective shell body.

[0019] The protective cover is connected with the protective shell through a linkage part.

[0020] The linkage part comprises a first positioning pin arranged on the protective shell and a second positioning pin arranged on the protective cover, and the first positioning pin and the second positioning pin are connected through a spring.

[0021] The end of the protective cover body is further provided with a rubber gasket for blocking the scattering of mud and water, the rubber gasket is arranged at the end of the base plate in the protective cover body, and a cutting gap for avoiding the movement interference between the cutting machine blade and the blocking rubber gasket is arranged on the blocking rubber gasket.

[0022] A material reducing groove is arranged on the protective shell body, and the opening of the material reducing groove corresponds to the connecting shaft connected with the cutting machine body and the cutting machine blade.

[0023] The protective shell body is provided with a communication hole corresponding to the spraying port of the spraying pipe.

[0024] The cutting machine further comprises a handle connected to the cutting machine body.

[0025] The handle is in an arc structure and is hollow, and a wire group for supplying power to the motor is arranged in the handle.

[0026] The handle comprises a transverse handle rod, one end of the transverse handle rod is provided with a longitudinal handle rod, and the other end of the transverse handle rod is connected to the cutting machine body through an arc handle rod.

[0027] The present application has the following advantages:

[0028] The protective shell can well play an isolation role, can well avoid the scattering of mud or soil, and avoid the excessive scattering of mud during use of the cutting machine. BRIEF DESCRIPTION OF DRAWINGS

[0029] The following is a brief description of the contents expressed by each drawing of the present application and the marks in the drawings:

[0030] Figure 1 It is a structural schematic diagram of the present application.

[0031] Figure 2 It is a structural schematic diagram of the machine head shell in the present application.

[0032] Figure 3 It is a right view of the protective cover in the machine head shell of the present application.

[0033] Figure 4 It is a structural schematic diagram of the return flow component in the working position in the present application.

[0034] Figure 5 It is a structural schematic diagram of the return flow component in the opening position in the present application.

[0035] Figure 6 It is a structural schematic diagram of the handle of the present application.

[0036] The marks in the above drawings are as follows:

[0037] 1, protective shell body, 2, return flow component, 3, protective shell body, 4, water supply pipeline. DETAILED DESCRIPTION

[0038] The specific embodiments of the present application will be further described in detail by comparing the drawings and by describing the optimal embodiments.

[0039] The utility model provides a multifunctional cutting machine, the cutting machine includes cutting machine body, cutting machine body end connects cutting machine blade, cutting machine body end is connected with the nose shell for isolating cutting machine blade, the nose shell includes the protective shell for isolating blade, the protective shell includes protective shell body 1, is equipped with the placement slot 101 for placing cutting machine blade 7 on protective shell body 1, the protective shell body 1 is connected with cutting machine through connecting component, cutting machine is the tool commonly used for traditional wall cutting, traditional cutting machine appearance is various, and in order to protect cutting machine's blade from hurting people and in order to reduce the distance of mud or soil scattering, need nose shell to solve such problems, so the utility model also provides a multifunctional cutting machine with nose shell, the nose shell of the utility model includes protective shell, and the protective shell is a plate structure, and in order to make cutting machine blade 7 can be placed in protective shell body 1, so in the utility model, the protective shell body is equipped with a placement slot 101, and the placement slot 101 is used for the placement of cutting machine blade 7, and of course, in order to not influence the rotation of cutting machine blade 7, the protective shell body 1 is equipped with a through hole, which facilitates the transmission shaft of cutting machine blade 7 to pass through, and as greater optimization, the protective shell of the utility model includes protective shell body 1, and the protective shell body 1 can be designed into various shapes according to needs, and is specifically set according to actual needs, and in the utility model, the protective shell body 1 is generally designed into a sector structure, and such setting is for subsequent cutting convenience, and the protective shell body 1 in the utility model is a sector structure with a right angle, and the placement slot 101 is communicated with the side of the protective shell body 1, which facilitates the placement of the cutting piece, and also facilitates the subsequent end face to be attached to the wall or ground, avoids the interference of the protruding structure with the cutting surface, and simultaneously in order to facilitate the connection of the protective shell with the cutting machine body 6, the connecting component of the utility model is connected with the cutting machine body 6, and in the utility model, the connecting component can be a fastening ring, a welded flange or a bolt, as long as the protective shell can be connected with the cutting machine body 6, and simultaneously as preferred, the connecting component in the utility model includes a connecting ring arranged on the side of the protective shell body 1, the end of the connecting ring is connected through a bolt, the connecting ring actually consists of two semicircles, the end is provided with a flange, the flange is provided with a threaded hole, the bolt passes through the threaded hole on the flange, so that the area surrounded by the inner diameter of the connecting ring is reduced, and the cutting machine head is bound.

[0040] As preferred, the protective shell body 1 in the application is provided with a spraying assembly for cutting machine blade 7 heat dissipation, the spraying assembly comprises a spraying pipe 41 arranged on the protective shell body 1, the spraying pipe 41 is provided with a spraying port on the side facing the cutting blade, and the spraying pipe 41 is connected with a water supply pipeline 4 for water supply; the water supply pipeline 4 is a known technology, as long as it can supply water to the spraying assembly; through the arrangement of the above structure, the cooling of the cutting machine blade 7 can be basically realized, and as a greater preference, the spraying pipe 41 is parallel to the side of the protective shell body 1, that is, when the cutting machine is placed horizontally, the spraying pipe 41 is arranged transversely, which facilitates the connection with the blocking plate 21, and the spraying pipe 41 functions as a rotating shaft at this time, which reduces the use of parts in the subsequent backflow assembly to a certain extent, and as a greater preference, the spraying pipe 41 is arranged in pairs, and the spraying pipes 41 arranged in pairs are distributed on the opposite sides of the protective shell body 1, and the ends of the spraying pipes 41 close to the tail of the cutting machine are connected together, which makes the spraying pipes 41 form a structure similar to a harpoon, and the purpose of such arrangement is to ensure the uniform cooling of the two sides of the cutting machine blade 7, so that the cutting machine blade 7 has better use effect; meanwhile, the water supply pipeline 4 is provided with a control valve 42 for adjusting the water flow, and through the arrangement of the control valve 42, the water supply amount of the water supply pipeline 4 to the spraying pipe 41 is controlled, so that the cooling of the cutting machine blade 7 is better realized.

[0041] As preferred, the backflow component 2 for blocking the rapid loss of cooling water is further arranged on the protective shell in the present application; the backflow component 2 comprises a blocking plate 21 arranged on the protective shell body 1, the blocking plate 21 is arranged at the end of the placing groove 101, the blocking plate 21 extends from the outer side of the protective shell body 1 to the direction of the placing groove 101, by arranging the blocking plate 21, the width of the placing groove 101 is reduced, and then the time of the cooling water flowing in the protective shell is increased, that is, the arrangement of the blocking plate 21 can slow down the speed of the cooling water leaving the protective shell, at the same time, the blocking plate 21 in the present application can be arranged on the edge of the placing groove 101, in other words, on the basis of ensuring the size between the cutting machine blade 7 and the inner wall of the placing groove 101, the opening size of the placing groove 101 is reduced, such arrangement can reduce the outflow speed of the cooling water in the protective shell, and better ensure the cooling of the cutting machine blade 7, in actual production, in order to avoid larger production cost, the conventional blocking plate 21 is generally arranged near one end of the spray pipe 41, such arrangement can basically realize the above-mentioned function, and can also reduce the cost, of course, if the cost is not considered, the blocking plate 21 can also be arranged along the opening of the placing groove 101; the arrangement of the blocking plate 21 in the backflow component 2 makes the spray pipe 41 spray cooling water to the cutting machine blade 7, because of the existence of the blocking plate 21, the cooling water can be well limited to avoid rapid loss, at the same time, the blocking plate 21 also has the function of collecting the cooling water splashed out due to the rotation of the cutting machine blade 7, the blocking plate 21 can partially splash out the cooling water, and then play the role of collection, of course, in actual use, the arrangement of the blocking plate 21 in the present application can be intermittent, that is, one backflow component 2 can comprise a plurality of blocking plates 21, and the plurality of blocking plates 21 extend along the same side of the placing groove 101; of course, the specific arrangement is arranged according to actual needs, at the same time, the blocking plate 21 can be fixedly connected with the protective shell body, or the blocking plate 21 can be movably connected with the protective shell body 1, the movable connection can facilitate the assembly of the cutting machine blade 7 and reduce the trouble of the assembly of the cutting machine blade 7; therefore, as a greater preference, the blocking plate 21 in the present application is connected with the protective shell body through a rotating component;The rotating part is arranged only to ensure that the blocking plate 21 rotates around the protective shell body, and the rotating angle of the blocking plate 21 is not required to be large, and the rotating part can be a hinge or a bolt, and is arranged according to actual requirements, and the optimized structure in the application is a hinge structure, the rotating part comprises a rotating sleeve 22 connected with the blocking plate 21, the rotating sleeve 22 is movably connected with the protective shell body 1, and the blocking plate 21 can rotate relative to the protective shell body 1; in the actual installation process, the rotating sleeve 22 is sleeved on the spray pipe 41, and of course, the rotating sleeve 22 can not be sleeved on the spray pipe 41, and a rotating shaft can be further arranged on the protective shell body 1; in any case, the arrangement of the rotating sleeve 22 provides a basis for the rotation of the blocking plate 21, the blocking plate 21 can rotate, the installation of the cutter blade 7 is simple, and the installation interference between the cutter blade 7 and the blocking plate 21 is avoided.

[0042] Preferably, the blocking plate 21 and the protective shell body 1 are provided with a reset spring 23 for resetting the blocking plate 21 in the application, the reset spring 23 is arranged, so that the blocking plate 21 is in a working position for a long time, when the blocking plate 21 is subjected to an external force, the blocking plate 21 rotates, and when the external force is removed, the blocking plate 21 quickly returns to the original position under the action of the reset spring 23, and the use of manpower is reduced.

[0043] Preferably, the protective shell body 1 is movably connected with a protective cover at one end in the application, the protective cover comprises a protective cover body 3, a transition groove 35 for avoiding affecting the rotation of the cutter blade 7 is arranged on one side of the protective cover body 3 close to the cutter blade 7, the protective cover is arranged, can be used to block the scattering of mud or soil, that is, has a good blocking effect, so that the scattering range of the soil cut by the cutter blade 7 is reduced, and the working environment of the cutter is well reduced, and meanwhile, the transition groove 35 is arranged, and the interference between the protective cover and the cutter blade 7 is well avoided.

[0044] Preferably, the protective cover body 3 comprises a base plate 31 in the application, a blocking block 32 for blocking mud is arranged on one side of the base plate 31 close to the cutter blade 7, and the transition groove 35 penetrates through the blocking block 32; the blocking block 32 plays a role in filtering large mud blocks, because in use, an edge of the cutter blade 7 is partly in the transition groove 35, when the cutter blade 7 continuously rotates along the transition groove 35, the blocking block 32 is relatively static relative to the cutter blade 7, when the cutter blade 7 cuts a wall body or other components, large mud blocks are inevitably scattered and rotated with the cutter blade 7 due to inertia, the blocking block 32 is arranged and can play a role in preliminary blocking, so that the large mud blocks are prevented from entering the protective shell with the cutter blade 7, and the repeated accumulation of the mud blocks is also avoided, and the subsequent cutting operation is affected.

[0045] As preferred, the blocking block in the application is provided with a first drainage groove 33, which is communicated with the transition groove 35; the first drainage groove 33 is vertically arranged with the cutter blade 7; the setting of the first drainage groove 33 can make the sludge in the transition groove 35 from the front end of the blocking block 32 flow out quickly through the first drainage groove 33, so that the relatively large sludge can flow out through the first drainage groove 33, and better sludge can enter the protective shell along the cutter blade 7, avoiding the repeated accumulation of sludge and affecting the subsequent cutting operation.

[0046] As preferred, the blocking block 32 in the application is provided with a second drainage groove 36 near one end of the protective shell body 1, which is communicated with the first drainage groove 33 through the transition groove 35; the second drainage groove 36 plays a role of third deslagging, which basically can ensure that most of the sludge entering the placing groove 101 along the cutter blade 7 is cooling water, reducing the problem of blocking caused by the accumulation of sludge; at the same time, the application discloses a three-layer structure equivalent to a filter, which can better block the sludge following the rotation of the cutter blade 7, so that the cutting machine provided with the head shell of the application has a better use environment.

[0047] As preferred, the second drainage groove 36 in the application is provided with a drainage baffle 37; the drainage baffle 37 extends towards the cutter blade 7; the drainage baffle 37 plays a blocking role, which can be used to collect the flying cooling water, and also plays a similar deslagging role as the blocking plate 21.

[0048] As preferred, the length of the blocking block 32 in the application is less than the length of the base plate 31; the distance between the base plate 31 away from the protective shell body 1 and the protective shell body 1 is greater than the distance between the blocking block 32 away from the protective shell and the protective shell body 1; such setting makes the end of the blocking block 32 have a certain space, so that a reserved space is formed between the end of the base plate 31 and the blocking plate 21; such setting is more convenient for blocking the large sludge, and at the same time of blocking, it can also better achieve protection, avoiding the flying of the blocked sludge along the vertical direction of the base plate 31 and polluting the surrounding wall.

[0049] As preferred, the protective cover in the application is connected with the protective shell through linkage components, the linkage components are arranged to improve the connection between the protective shell and the protective cover, so that the cutting machine head shell is more integral; in the application, the linkage components include a first positioning pin 51 arranged on the protective shell and a second positioning pin 52 arranged on the protective cover, the first positioning pin 51 and the second positioning pin 52 are connected through a spring 53; such arrangement makes the protective shell can rotate around the rotating component, at the same time, the linkage components play a role in fixing the position of the protective cover, avoiding the problem that the protective cover is easy to shake when it is turned up or down, at the same time, the existence of the linkage components makes the protective cover be subjected to the force exerted by the linkage components when it is opened or closed, which makes the protective cover tend to close or open when the external force pulling the protective cover is manually released, that is, when other external force releases the protective cover, the linkage components pull the free end of the protective cover to move towards the protective shell, when the protective cover contacts with the protective shell, because the force is relatively large, that is, the collision between the two occurs, the collision between the two makes the sludge stored in the protective shell or the protective cover can be separated from the protective shell or the protective cover due to the collision, which has a good effect of removing impurities, at the same time, in the application, the first positioning pin 51 and the second positioning pin 52 are on the same side of the head shell, such arrangement can better realize the relative movement between the protective shell and the protective cover, at the same time, as a greater optimization, the connection between the protective cover and the protective shell in the application is provided with at least two linkage components, the two linkage components are respectively distributed on the opposite sides of the protective cover and the protective shell, such arrangement makes the protective cover be subjected to a relatively uniform force, better realizing the connection between the protective cover and the protective shell.

[0050] As preferred, the protective cover body 3 in the application is further provided with a rubber gasket 34 for blocking the scattering of mud and water, the rubber gasket 34 is arranged at the end of the base plate 31 in the protective cover body 3, and the blocking rubber gasket 34 is provided with a cutting gap 38 for avoiding the movement interference between the cutting machine blade 7 and the blocking rubber gasket 34; such arrangement can well avoid the rotation interference between the rubber gasket 34 and the cutting machine blade 7, and better play a sealing role, avoiding the mud and water driven by the cutting machine blade 7 having a large scattering range, that is, the arrangement of the rubber gasket 34 can well avoid the pollution of scattered mud and water to the surrounding articles of the cutting surface.

[0051] As preferred, the protective shell body 1 in the application is provided with a material reducing groove 102, the opening of the material reducing groove 102 corresponds to the connecting shaft connected with the cutting machine body 6 and the cutting machine blade 7; such arrangement makes the connecting shaft of the cutting machine body 6 and the cutting machine blade 7 exposed, facilitating the fastening of the connecting components such as appliance fastening bolts, when it is necessary to replace the cutting machine blade 7, the cutting machine blade 7 can be replaced without disassembling the head shell.

[0052] As preferred, the shell of the protective shell is provided with a communication hole corresponding to the spray opening of the spray pipe 41, which is convenient for the cooling water sprayed from the spray pipe 41 to quickly enter the cutting machine blade 7, mainly plays a good communication role, and avoids that the cooling water cannot be quickly sprayed on the cutting machine blade 7 due to the blocking of the protective shell.

[0053] As preferred, the cutting machine further comprises a handle 10 connected to the cutting machine body; the handle 10 is convenient for hand holding, and a handrail assembly is connected to the handle 10, the handrail assembly comprises an arc-shaped handrail 8, a positioning hole 1014 is arranged on the handle 10, the arc-shaped handrail 8 is connected to the positioning hole of the handle 10 through a bolt, firstly, the handle 10 is arranged on the cutting machine body, the handle 10 comprises a transverse handle 1011, one end of the transverse handle 1011 close to the cutting machine blade is provided with a longitudinal handle 1012, the other end of the transverse handle 1011 is connected to the cutting machine body through an arc-shaped handle 1013; the arc-shaped handrail 8 is arranged on the handle 10, the positioning hole 1014 is arranged on the handle 10, the arc-shaped handrail 8 is connected to the positioning hole 1014 of the handle 10 through a bolt, the arc-shaped handrail 8 comprises an arc-shaped handrail 8 body and a support frame 9, the arc-shaped handrail 8 body is connected to the cutting machine body through the support frame 9, the support frame 9 plays a good supporting role, and the above connection makes the cutting machine disclosed by the application have a wider application range; the length of the arc-shaped handrail 8 is relatively long, and the specific length is set according to needs, and when in use, the operator holds the arc-shaped handrail 8, and places the cutting machine downward, so that the device disclosed by the application can be pushed like a cart; meanwhile, through the above structure, the cutting machine disclosed by the application can work more conveniently, the operator can operate the top surface of the wall by standing on the ground, the trouble of using stairs is avoided, meanwhile, the device disclosed by the application lengthens the length of the handrail, so that the operator is away from the cutting blade, which is beneficial to improving the safety factor during work and reducing the influence of the cutting machine on the operator; as further preferred, the handle 10 comprises a transverse handle 1011, one end of the transverse handle 1011 close to the cutting machine blade is provided with a longitudinal handle 1012, and the other end of the transverse handle 1011 is connected to the cutting machine body through an arc-shaped handle 1013, which is convenient for hand holding; meanwhile, as preferred, the transverse handle 1011, the longitudinal handle 1012 and the arc-shaped handle 1013 can be connected through a detachable connection mode, for example, a bolt, a buckle or the like, so that the connection between the three is convenient for disassembly and replacement.

[0054] As preferred, the handle 10 in the application is in an arc structure, the handle 10 is hollow, and a wire set for supplying power to the motor is arranged inside; the hollow handle 10 is designed so that the wire can be routed inside the handle 10, avoiding the wire harness from being routed outside the motor, so that the motor and the wire connection are inside the handle 10, playing a protective role, avoiding the motor and the wire connection being exposed outside the machine body.

[0055] Obviously, the specific implementation of the application is not limited by the above-mentioned manner, as long as various non-essential improvements are made by adopting the method concept and technical scheme of the application, which are within the protection scope of the application.

Claims

1. A guard for a cutting machine, characterised in that, The protective cover comprises a protective cover body provided with a transition groove; the protective cover body comprises a base plate provided with a blocking block, and the transition groove penetrates through the blocking block; The blocking block is provided with a first drainage groove in communication with the transition groove; In use, the protective cover is closed; a part of the cutting blade edge is in the transition groove; When the cutting blade continuously rotates along the transition groove, the blocking block is stationary, and the arrangement of the blocking block can prevent large mud blocks from entering the protective shell of the cutting machine along with the cutting blade; The blocking block is provided with a second drainage groove in communication with the first drainage groove through the transition groove.

2. A guard for a cutting machine according to claim 1, characterised in that The first drainage groove is perpendicular to the cutting blade.

3. A guard for a cutting machine according to claim 1, wherein The second drainage groove is provided with a drainage baffle extending towards the cutting blade.

4. A guard for a cutting machine according to claim 1, wherein The length of the blocking block is less than the length of the base plate.

5. A guard for a cutting machine according to claim 4, wherein The distance between the end of the base plate away from the protective shell body and the protective shell body is greater than the distance between the end of the blocking block away from the protective shell body and the protective shell body.

6. A head housing for a cutting machine, characterized in that The head shell comprises a protective shell; the protective shell comprises a protective shell body provided with a placing groove; the protective shell is connected with the protective cover of any one of claims 1-5.

7. A handpiece housing for a cutting machine according to claim 6, wherein The end of the protective shell body is provided with a reflux component; the reflux component comprises a blocking plate provided on the protective shell body, the blocking plate is arranged at the end of the placing groove, and the blocking plate extends from the outer side of the protective shell body towards the direction of the placing groove.

8. A cutting machine structure employing the handpiece shell of claim 6, wherein, The cutting machine body is connected with the head shell at the end.

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