CN213531036U

CN213531036U - Cutting machine

Info

Publication number: CN213531036U
Application number: CN202022285148.8U
Authority: CN
Inventors: 朱其刚
Original assignee: Yongkang Yahang Industry And Trade Co Ltd
Current assignee: Yongkang Yahang Industry And Trade Co Ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-06-25
Anticipated expiration: 2030-10-14

Abstract

The utility model discloses a cutting machine, which aims at overcoming the problem of poor antiskid effect of a protective cover in the prior art, and comprises a casing, a rotatable saw blade is arranged on the casing, a protective cover is arranged on the saw blade, the protective cover comprises a first cover body and a second cover body, the first cover body is fixedly arranged on the casing, the second cover body is hinged on the first cover body through a rotating shaft, a torsional spring which is used between the second cover body and the first cover body is sleeved on the rotating shaft, the torsional spring forces the second cover body to keep the cover on the saw blade, the second cover body is rotated, the second cover body can be opened on the saw blade, when the cutting machine is used, along with the increase of the cutting depth, the second cover body can be lifted on the saw blade by the object cut by the saw blade, the cover body can be covered on the saw blade in all directions, and the cover body can not influence the cutting of the saw blade to the object, and after the external force is removed, the torsion spring can automatically reset the second cover body.

Description

Cutting machine

Technical Field

The utility model belongs to an electric tool, in particular to a cutting machine.

Background

The cutting machine is an electric tool for sawing objects such as wood, and the cutting machines on the market at present are mainly divided into handheld type, floor type and large-scale cutting machines, and are widely applied to places such as production, construction and the like.

Current hand-held type cutting machine mainly includes the casing, be provided with the motor in the casing, the transmission connection has the circular saw blade on the motor, the motor during operation, the circular saw blade is rotatory, rotatory circular saw blade can be used to cut the object, in order to improve the safety of using, install the protection casing on the current casing usually, the protection casing interval is between circular saw blade and user's hand, avoid the user to touch the circular saw blade carelessly, also play and prevent that the dust from directly splashing to the user on one's body.

However, the prior art is not perfect enough, the protective cover is fixed on the machine shell, the wrapping size of the protective cover is short in order to avoid the influence of the protective cover on the cutting depth, and therefore the protective effect and the dust prevention effect of the protective cover are poor.

SUMMERY OF THE UTILITY MODEL

For overcoming the not enough and problem that exists of prior art, the utility model provides a structure is retrencied, the protective effect is good and prevent the effectual cutting machine of dust.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a cutting machine, which comprises a housing, be provided with rotatable saw bit on the casing, the saw bit upper shield is equipped with the guard shield, the guard shield includes the first cover body and the second cover body, the first cover body is fixed to be set up on the casing, the second cover body articulates on the first cover body through the pivot, the cover is equipped with the torsional spring that is used for between the second cover body and the first cover body in the pivot, the torsional spring forces the second cover body to keep covering and establish on the saw bit, rotate the second cover body, the second cover body can be lifted on the saw bit, when using this cutting machine, the object that is cut by the saw bit can be lifted the second cover body on the saw.

Preferably, the first cover is located on a rotation path of the second cover, the first cover defines a rotation angle of the second cover, the first cover includes a first arc-shaped plate, the second cover includes a second arc-shaped plate, and the first arc-shaped plate and the second arc-shaped plate respectively surround the outer side of the saw blade.

Preferably, a first protrusion is formed on the outer side of the first arc-shaped plate, and when the second cover body is lifted on the saw blade, the first protrusion can abut against the second arc-shaped plate.

Preferably, the rotating shaft is arranged at one end of the second arc-shaped plate, and the other end of the second arc-shaped plate is provided with the guide sliding block.

Preferably, a second protrusion is formed on the inner side of the second arc-shaped plate, and the torsion spring forces the second protrusion to abut against one end of the first arc-shaped plate.

Preferably, the bottom plate is hinged to the machine shell, the bottom plate is rotated, the maximum cutting depth of the saw blade can be adjusted through the bottom plate, a locking piece is detachably arranged between the bottom plate and the machine shell, and the bottom plate can be fixedly arranged on the machine shell through the locking piece.

Preferably, the bottom plate is provided with a folded plate, the folded plate is provided with a strip-shaped hole, the shell is provided with a threaded hole, the locking piece is a bolt, and the bolt penetrates through the strip-shaped hole and is connected in the threaded hole.

Preferably, the casing is fixedly provided with an auxiliary handle, the auxiliary handle is provided with a switch for controlling the rotating speed of the saw blade, the auxiliary handle and the casing enclose a region, and the switch is arranged in the region.

Preferably, the auxiliary handle comprises a first handle and a second handle, the first handle, the second handle and the machine shell are sequentially and fixedly arranged together, a slot is formed in the second handle, the first handle is inserted into the slot, a key block is fixedly arranged in the slot, a key groove is formed in the first handle, the key block is arranged in the key groove, the second handle comprises a first handle shell and a second handle shell, the first handle shell is fixedly arranged on the second handle shell, the first handle shell and the second handle shell are matched to form the first handle and the slot, and the switch is arranged between the first handle shell and the second handle shell.

Preferably, the auxiliary handle is provided with at least one pair of elastic buckles, the pair of elastic buckles is used for fixedly arranging the wrench on the auxiliary handle, the auxiliary handle is provided with a positioning hole, and when the tool is arranged between the pair of elastic buckles, one end of the wrench can be inserted into the positioning hole.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

(1) when the cutting machine is used, the second cover body can be abutted to an object cut by the saw blade, the object cut by the saw blade can be lifted on the saw blade by the second cover body along with the increase of the cutting depth, the cover body can be covered on the saw blade in an all-around manner in the cutting process, and the cover body can not influence the cutting of the saw blade on the object, after the external force is removed, the torsion spring can automatically reset the second cover body, so the cutting machine has the advantages of simple structure, compact structure, good protection effect and convenience in use.

(2) The first cover body limits the rotation angle of the second cover body, the problem that the saw blade cuts the second cover body and exceeds the elastic limit of the torsion spring due to the fact that the rotation angle of the second cover body is too large is avoided, and the working reliability of a product is improved.

(3) The second arc has been injectd and has been rotated between the one end of first arc and the first arch, and structural design is reasonable, and when the second arc rotated extreme position, first arc was more stable to the support of second arc, and in addition, when the protruding butt of second when the one end of first arc, the second arc plate part piles up on first arc, avoids the piece of cutting outwards to splash from between first arc and the second arc.

(4) When the cutting machine is used, a user can firstly disassemble the locking piece according to actual requirements, then adjust the position of the bottom plate on the shell and finally install the locking piece, so that quantitative adjustment of cutting depth is realized, and the cutting machine has the advantages of adjustable cutting depth, high cutting precision, wide application range and convenience in use.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic diagram of the explosion structure of the present invention;

fig. 3 is an exploded view of a second handle of the present invention;

fig. 4 is a schematic structural diagram of a second cover body of the present invention;

in the figure: 1-machine shell, 2-saw blade, 3-first cover body, 4-second cover body, 5-rotating shaft, 6-torsion spring, 7-bottom plate, 8-auxiliary handle, 91-locking piece, 92-switch, 11-threaded hole, 31-first arc plate, 32-first projection, 41-second arc plate, 42-second projection, 43-guide sliding block, 71-folded plate, 72-strip-shaped hole, 81-first handle, 82-second handle, 811-key groove, 821-first handle shell, 822-second handle shell, 823-slot, 824-key block, 825-positioning hole, 826-positioning groove and 827-elastic buckle.

Detailed Description

To facilitate understanding of those skilled in the art, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 4, a cutting machine is a handheld cutting machine, which includes a housing 1, the housing 1 is hollow, a motor (not shown in the figure) can be installed in the housing 1, a rotatable saw blade 2 is provided at the front end of the housing 1, the saw blade 2 is circular, the saw blade 2 can be connected to the motor in a transmission manner, when the cutting machine is used, the motor can drive the saw blade 2 to rotate on the housing 1, and the rotating saw blade 2 can be used for cutting objects.

Saw bit 2 upper shield is equipped with the guard shield, and during the use of this cutting machine, the guard shield interval is between saw bit 2 and hand, and the guard shield plays the guard action, avoids user's hand direct touch to saw bit 2, also avoids the piece to directly splash to user's upper reach.

The guard shield includes the first cover body 3 and the second cover body 4, the first cover body 3 is fixed to be set up on casing 1, the second cover body 4 articulates on the first cover body 3, concretely, the second cover body 4 articulates on the first cover body 3 through pivot 5, the direction of rotation of the second cover body 4 on the first cover body 3 is unanimous with the direction of rotation of saw bit 2 on casing 1, the second cover body 4 is located the side rotation of saw bit 2, the cover is equipped with torsional spring 6 on the pivot 5, torsional spring 6 acts on between the second cover body 4 and the first cover body 3, the one end butt of torsional spring 6 is on the first cover body 3, the other end butt of torsional spring 6 is on the second cover body 4, torsional spring 6 forces the second cover body 4 to keep covering on saw bit 2, rotate the second cover body 4, the second cover body 4 can be lifted on saw bit 2.

When using this cutting machine, but the second cover body 4 butt is on the object by 2 cutting of saw bit, along with depth of cut's grow, the object by 2 cutting of saw bit can be opened the second cover body 4 on saw bit 2, in the cutting process, the cover body can all-roundly cover and establish on saw bit 2, and the cover body can not influence the cutting of saw bit 2 to the object yet, remove external force after, the second cover body 4 that can automatic re-setting of torsional spring 6, therefore this cutting machine has the advantage that the structure is retrencied, compact structure, the protecting effect is good, high durability and convenient use.

The first cover body 3 is positioned on the rotating path of the second cover body 4, the first cover body 3 limits the rotating angle of the second cover body 4, the problem that the saw blade 2 cuts the second cover body 4 and exceeds the elastic limit of the torsion spring 6 due to the fact that the rotating angle of the second cover body 4 is too large is avoided, and the working reliability of a product is improved.

The first cover body 3 comprises a first arc-shaped plate 31, the second cover body 4 comprises a second arc-shaped plate 41, the first arc-shaped plate 31 and the second arc-shaped plate 41 respectively encircle the outer sides of the saw blades 2, the first arc-shaped plate 31 and the second arc-shaped plate 41 are sequentially arranged on the outer sides of the saw blades 2, and the first arc-shaped plate 31 and the second arc-shaped plate 41 directly block the splash of the scraps.

The first arc-shaped plate 31 is formed with a first protrusion 32 on its outside, the first protrusion 32 being able to abut on the second arc-shaped plate 41 when the second cover 4 is opened on the saw blade 2, the first protrusion 32 defining the maximum opening angle of the second cover 4.

The inboard of second arc 41 is formed with second arch 42, and torsional spring 6 forces second arch 42 to abut in the one end of first arc 31, and consequently second arc 41 has been injectd and has rotated between the one end of first arc 31 and first arch 32, and structural design is reasonable, and when second arc 41 rotated to extreme position, first arc 31 was more stable to the support of second arc 41 to, and, when second arch 42 abutted in the one end of first arc 31, second arc 41 partially piled up on first arc 31, avoid the piece of cutting outwards to splash from between first arc 31 and second arc 41.

The pivot 5 sets up the one end at second arc 41, and the other end of second arc 41 is provided with direction slider 43, and when using this cutting machine, direction slider 43 and the object direct contact who is cut by saw bit 2 play the effect of direction, have improved the rotation ride comfort of the second cover body 4, and specifically, direction slider 43 can be the gyro wheel, and direction slider 43 rotationally sets up the other end at second arc 41 to reduce friction and noise, improved the life of product.

Articulated on the casing 1 have bottom plate 7, bottom plate 7 is located the one end of saw bit 2, the direction of rotation of saw bit 2 on casing 1 is unanimous with the direction of rotation of bottom plate 7 on casing 1, bottom plate 7 rotates in the one end of saw bit 2, when using this cutting machine, when bottom plate 7 butt is on being cut the object, saw bit 2 reaches the maximum depth of cut, bottom plate 7 rotates, the adjustable saw bit 2's of bottom plate 7 maximum depth of cut, can dismantle between bottom plate 7 and the casing 1 and be provided with locking piece 91, locking piece 91 can be with the fixed setting on casing 1 of bottom plate 7.

When using this cutting machine, the user can dismantle locking piece 91 earlier according to the actual demand, adjusts the position of bottom plate 7 on casing 1 again, installs locking piece 91 at last to the realization is adjusted cutting depth's ration, and consequently this cutting machine has that cutting depth is adjustable, cutting accuracy is high, application scope is wide and convenient to use's advantage.

Be formed with folded plate 71 on the bottom plate 7, seted up bar hole 72 on the folded plate 71, set up threaded hole 11 on the casing 1, threaded hole 11 is towards bar hole 72, locking piece 91 is the bolt, the bolt is worn to locate bar hole 72 and is connected in threaded hole 11, when using this cutting machine, through screwing up or unscrewing locking piece 91, can realize bottom plate 7 free rotation and bottom plate 7 switching between fixing on casing 1, the convenience of using has further been improved.

An auxiliary handle 8 is fixedly arranged on the machine shell 1, the first cover body 3 is positioned between the auxiliary handle 8 and the saw blade 2, and the first cover body 3 is fixed and plays a role in real-time protection.

The auxiliary handle 8 is provided with a switch 92, the switch 92 is connected to the motor, and a user can control the rotating speed of the motor through the switch 92, so that the rotating speed of the saw blade 2 can be adjusted.

The integral structure of the auxiliary handle 8 is rod-shaped, the auxiliary handle 8 and the machine shell 1 enclose into an area, the switch 92 is arranged in the area, and a hand grasping the auxiliary handle 8 can press the switch 92 at the same time, so that the cutting machine is further convenient to use.

The auxiliary handle 8 comprises a first handle 81 and a second handle 82, the first handle 81, the second handle 82 and the casing 1 are sequentially and fixedly arranged together, specifically, the first handle 81 can be fixed on the casing 1 through a bolt, the first handle 81 can be fixed on the second handle 82 through a bolt, and the second handle 82 can be connected on the casing 1 through a thread, so that the auxiliary handle 8 and the casing 1 can be conveniently disassembled and assembled, and the assembly cost is reduced.

The slot 823 has been seted up on the second handle 82, and the one end of first handle 81 is inserted and is established in slot 823, still is formed with key block 824 on the second handle 82, and key block 824 is located slot 823, has seted up keyway 811 on the first handle 81, and key block 824 sets up in keyway 811 to the fastness that first handle 81 and second handle 82 are connected has been improved.

The second handle 82 comprises a first handle shell 821 and a second handle shell 822, the first handle shell 821 is fixedly arranged on the second handle shell 822, the first handle shell 821 can be fixed on the second handle shell 822 through bolts, the first handle shell 821 and the second handle shell 822 are matched to form the second handle 82 and an insertion groove 823, and the switch 92 is arranged between the first handle shell 821 and the second handle shell 822, so that the cutting machine is further convenient to assemble and disassemble.

Be provided with at least a pair of elasticity buckle 827 on the auxiliary handle 8, a pair of elasticity buckle 827 symmetry sets up on auxiliary handle 8, and a pair of elasticity buckle 827 is used for fixing the setting on auxiliary handle 8 with the spanner (not shown in the figure) to conveniently carry spanner and this cutting machine together.

Specifically, the elastic buckle 827 is integrally formed on the second handle 82, so that the number of parts is reduced, and the production cost is reduced.

Still seted up locating hole 825 on the auxiliary handle 8, locating hole 825 is located one side of a pair of elasticity buckle 827, and when installing the spanner between a pair of elasticity buckle 827, the one end of spanner can be pegged graft and is established in locating hole 825 to further improved the fastness of this cutting machine to the spanner connection, avoided the spanner to rock on auxiliary handle 8.

Still seted up constant head tank 826 on the auxiliary handle 8, the both sides of a pair of elasticity buckle 827 all are provided with constant head tank 826, and when the spanner was installed between a pair of elasticity buckle 827, the spanner can set up in constant head tank 826, and constant head tank 826 has improved the fastness that this cutting machine was connected the spanner, avoids the spanner to take place to rock on auxiliary handle 8.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a cutting machine, including casing (1), be provided with rotatable saw bit (2) on casing (1), a serial communication port, saw bit (2) upper shield is equipped with the guard shield, the guard shield includes the first cover body (3) and the second cover body (4), the first cover body (3) is fixed to be set up on casing (1), the second cover body (4) articulates on the first cover body (3) through pivot (5), the cover is equipped with torsional spring (6) that are used in between the second cover body (4) and the first cover body (3) on pivot (5), torsional spring (6) force the second cover body (4) keep covering and establish on saw bit (2), rotate the second cover body (4), the second cover body (4) can be lifted on saw bit (2), when using this cutting machine, the object that is cut by saw bit (2) can be lifted the second cover body (4) on saw bit (2).

2. A cutting machine according to claim 1, characterized in that the first housing (3) is located in the path of rotation of the second housing (4), the first housing (3) defining the angle of rotation of the second housing (4), the first housing (3) comprising a first arc (31), the second housing (4) comprising a second arc (41), the first arc (31) and the second arc (41) each encircling the outside of the saw blade (2).

3. Cutting machine according to claim 2, characterized in that the first arc (31) is formed with a first projection (32) on its outside, the first projection (32) being able to abut against the second arc (41) when the second cover (4) is lifted on the saw blade (2).

4. A cutting machine according to claim 2, characterized in that the shaft (5) is arranged at one end of a second arc-shaped plate (41), and the other end of the second arc-shaped plate (41) is provided with a guide slide (43).

5. A cutting machine according to any one of claims 2-4, characterized in that the second arc-shaped plate (41) is formed with a second projection (42) on its inside, the torsion spring (6) forcing the second projection (42) against one end of the first arc-shaped plate (31).

6. A cutting machine according to claim 1 or 2 or 3 or 4, characterized in that the housing (1) is hinged with a bottom plate (7), the bottom plate (7) is rotated, the bottom plate (7) can adjust the maximum cutting depth of the saw blade (2), a locking member (91) is detachably arranged between the bottom plate (7) and the housing (1), and the locking member (91) can fix the bottom plate (7) on the housing (1).

7. The cutting machine according to claim 6, characterized in that the bottom plate (7) is formed with a folded plate (71), the folded plate (71) is provided with a strip-shaped hole (72), the housing (1) is provided with a threaded hole (11), the locking member (91) is a bolt, and the bolt is inserted into the strip-shaped hole (72) and connected to the threaded hole (11).

8. A cutting machine according to claim 1 or 7, characterized in that the housing (1) is fixedly provided with an auxiliary handle (8), the auxiliary handle (8) is provided with a switch (92) for controlling the rotation speed of the saw blade (2), the auxiliary handle (8) and the housing (1) enclose an area, and the switch (92) is arranged in the area.

9. A cutting machine according to claim 8, characterized in that the auxiliary handle (8) comprises a first handle (81) and a second handle (82), the first handle (81), second handle (82) and casing (1) are in the same place fixed setting in proper order, slot (823) have been seted up on second handle (82), first handle (81) are inserted and are established in slot (823), slot (823) internal fixation is provided with key piece (824), keyway (811) have been seted up on first handle (81), key piece (824) set up in keyway (811), second handle (82) include first handle shell (821) and second handle shell (822), first handle shell (821) are fixed to be set up on second handle shell (822), first handle shell (821) and second handle shell (822) cooperation form first handle (81) and slot (823), switch (92) set up between first handle shell (821) and second handle shell (822).

10. The cutting machine according to claim 8, characterized in that the auxiliary handle (8) is provided with at least a pair of elastic buckles (827), the pair of elastic buckles (827) is used for fixedly arranging the wrench on the auxiliary handle (8), the auxiliary handle (8) is provided with a positioning hole (825), and when the tool is installed between the pair of elastic buckles (827), one end of the wrench can be inserted into the positioning hole (825).