CN214978163U

CN214978163U - Cutting equipment

Info

Publication number: CN214978163U
Application number: CN202121207206.3U
Authority: CN
Inventors: 郑少阳
Original assignee: Shanghai Chuanyu Technology Co ltd
Current assignee: Shanghai Chuanyu Technology Co ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2021-12-03
Anticipated expiration: 2031-06-01

Abstract

The utility model provides a cutting device, which comprises a dust suction cavity, a motor cavity and a cutting cavity, wherein a rotor penetrates through the dust suction cavity, the motor cavity and the cutting cavity; a driving motor is arranged in the motor cavity and connected with the rotor to drive the rotor to rotate; an impeller assembly is arranged on the rotor and comprises a first impeller in the dust suction cavity and a second impeller arranged in the motor cavity; the rotor rotates to drive the impeller assembly to rotate so as to form negative pressure in the dust suction cavity, and the cutting cavity is communicated with the dust suction cavity through a dust suction pipeline; one side of the dust suction cavity far away from the cutting cavity or the dust suction pipeline can be detachably connected with a dust collection channel, a filter screen is arranged in the dust collection channel, and air sucked in the cutting cavity passes through the dust collection channel to be discharged and dust is blocked by the filter screen to be left in the dust collection channel, so that the cutting equipment has the dust suction function and the dust collection function.

Description

Cutting equipment

Technical Field

The utility model relates to an electric tool technical field especially relates to a cutting equipment.

Background

Although the conventional electric saws can be classified into various types according to the size, the application and the like, the structural differences are different. The existing electric saw generally comprises a shell, a power device and a saw blade, wherein the power device generally adopts a motor and is arranged at the shell, and the power device is used for driving the saw blade to rotate so as to cut materials.

Among the prior art, for preventing that the saw bits that produce from splashing among the saw bit cutting process, can set up the saw bit cover in the saw bit outside usually, through setting up the saw bit cover, can block the saw bits better and splash to user's department and then realize the protection to the user. However, the saw blade cover in the prior art has the function of preventing sawdust from splashing, and only changes the direction of the sawdust splashing to protect a user; it still causes the sawdust to spread into the working environment, which is a severe working environment.

Cutting machines in the current market are mainly classified into two categories: the traditional cutting machine and the dust-free cutting machine externally connected with a dust collector. The traditional cutting machine has the main advantages of low price and simple operation; has the disadvantages of serious pollution, serious air pollution in the using process and environmental protection. The dust-free cutting machine externally connected with the dust collector has the advantages that the air pollution generated in the using process can be reduced; the disadvantage is that the price is high, and the dust collection function can be realized only by matching with a dust collector; inconvenient operation, limited working conditions, etc.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical defects, the utility model aims to provide a cutting device integrating dust collection and dust collection.

The utility model discloses a cutting device, which comprises a dust suction cavity, a motor cavity and a cutting cavity, wherein a rotor penetrates through the dust suction cavity, the motor cavity and the cutting cavity; a driving motor is arranged in the motor cavity and connected with the rotor to drive the rotor to rotate; an impeller assembly is arranged on the rotor, the impeller assembly comprises a first impeller and a second impeller, and the rotor sequentially penetrates through the centers of the first impeller and the second impeller and is fixedly connected with the first impeller and the second impeller; the first impeller is arranged in the dust collection cavity, and the second impeller is arranged in the motor cavity; the rotor rotates to drive the impeller assembly to rotate so as to form negative pressure in the dust suction cavity, and the cutting cavity is communicated with the dust suction cavity through a dust suction pipeline; one side of the dust suction cavity, which is far away from the cutting cavity, or the dust suction pipeline can be detachably connected with a dust collection channel, a filter screen is arranged in the dust collection channel, and air sucked in the cutting cavity is discharged through the dust collection channel while dust is blocked by the filter screen and is left in the dust collection channel.

Preferably, the dust collecting channel comprises a dust collecting space and an air outlet space, the dust collecting space is arranged between the dust suction cavity and the air outlet space, and the filter screen is arranged in the dust collecting space; the dust collecting space is detachably connected with the dust suction cavity; the air sucked from the cutting cavity passes through the dust collecting space and is discharged from the air outlet space, and the dust is blocked by the filter screen and is left in the dust collecting space.

Preferably, a fixing plate is arranged between the motor cavity and the dust suction cavity, a plurality of connecting pieces are arranged on the fixing plate, and the shell of the motor cavity, the fixing plate and the shell of the dust suction cavity are connected through the plurality of connecting pieces; the shapes and the sizes of the radial sections of the fixed plate, the motor cavity and the dust suction cavity are consistent; the fixed plate comprises a middle opening area and a circular ring connecting area, the rotor is penetrated through the opening area, and the connecting area is provided with a plurality of connecting pieces.

Preferably, the casing of the motor cavity is circumferentially provided with a plurality of heat dissipation holes, and the positions of the heat dissipation holes correspond to the positions of the impellers.

Preferably, the driving motor is connected with a power supply, and the power supply comprises an external power line and a built-in battery.

Preferably, the dust suction duct is disposed along a surface of a housing of the cutting apparatus and penetrates the fixing plate.

Preferably, a first handle is arranged on a shell of the cutting cavity, and a second handle is arranged on a shell of the motor cavity; the first handle is arranged along the radial direction of the cutting cavity; the first handle includes a support plate disposed toward a cutting opening of the cutting cavity.

Preferably, the second handle is arranged along the radial direction of the motor cavity, and both ends of the second handle are connected with the shell; the second handle comprises two holding pieces which are axially arranged, and the distance between the two holding pieces is larger than one fourth of the axial size of the motor cavity.

Preferably, the first impeller and the second impeller are respectively arranged on two sides or the same side of the motor; the first impeller comprises a first wheel disc and first blades, and the first blades are circumferentially arranged on the first wheel disc at equal intervals; the first blade is arc-shaped or spiral, and when the rotor rotates, the first impeller sucks ambient air to circulate along the radial direction of the rotor; the second impeller comprises a second wheel disc and second blades, and the second blades are circumferentially arranged on the second wheel disc at equal intervals; one or two surfaces of the second wheel disc are provided with the second blades; the second blades are linear, arc or spiral, and the contact area between the rotor and air is enlarged by connecting the second radiating blades, the second wheel disc and the rotor.

After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:

1. compared with the cutting machine with the external dust collector in the prior art, the utility model has the dust collection function and the dust collection function, does not need to be matched with the external dust collector, has more convenient operation and wider application range, and is not limited by the use working condition; the economical efficiency is far higher than that of a cutting machine externally connected with a dust collector;

2. the filter screen avoids the influence of dust entering the motor on the equipment;

3. the dust collection function and the motor heat dissipation function are realized through the first impeller and the second impeller respectively;

4. compared with a cutting machine externally connected with a dust bag, the dust bag cutting machine has no risk of dust leakage caused by damage of the dust bag.

Drawings

Fig. 1 is an exploded view of a cutting apparatus provided by the present invention;

fig. 2 is a perspective view of the cutting apparatus provided by the present invention;

fig. 3 is a cross-sectional view of a cutting apparatus provided by the present invention;

fig. 4 is an internal structure diagram of the cutting apparatus provided by the present invention.

Wherein: 1-cutting cavity, 2-motor cavity, 3-dust suction cavity wall plate, 4-driving motor, 5-first impeller, 6-dust collection part, 7-air outlet part, 8-fixing plate, 9-first handle, 10-second handle, 11-dust suction pipeline, 12-power wire sleeve, 13-carbon brush, 14-bearing, 15-bottom plate, 16-cutting depth adjusting module, 17-switch, 18-saw blade, 19-filter screen and 20-second impeller.

Detailed Description

The advantages of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the following description, suffixes such as "module", "part", or "unit" used to indicate elements are used only for the convenience of description of the present invention, and have no specific meaning in itself. Thus, "module" and "component" may be used in a mixture.

Referring to the accompanying drawings 1-4, the utility model discloses a cutting device, including dust absorption chamber, motor chamber 2 and cutting chamber 1, the rotor runs through and locates between dust absorption chamber, motor chamber 2 and cutting chamber 1. Be equipped with driving motor 4 and switch 17 in the motor chamber 2, driving motor 4 is connected in order to drive the rotor rotation with the rotor, is equipped with impeller subassembly and saw bit 18 on the rotor, and cutting chamber 1 includes the cutting cut, and 18 parts of saw bit are located and are arranged in cutting chamber 1, and another part exposes outside the cutting cut for cut the object. The saw blade 18 placed in the cutting chamber 1 can be protected completely, and the risk of safety accidents caused by breakage of the saw blade 18 is reduced.

The impeller assembly comprises a first impeller 5 and a second impeller 20, and the rotor sequentially penetrates through the centers of the first impeller 5 and the second impeller 20 and is fixedly connected with the first impeller 5 and the second impeller 20. The first impeller 5 is arranged in the dust suction cavity, and the second impeller 20 is arranged in the motor cavity.

The rotor rotates to drive the saw blade 18 to rotate for cutting and drive the impeller 5 to rotate, so that a wind power is formed in the cavity, the pointing end of the wind power in the cavity is negative pressure, and the dust collection effect is achieved inside the cutting equipment.

The cutting cavity 1 is communicated with the dust suction cavity through a dust suction pipeline 11 and is used for sucking cutting debris in the cutting cavity 1. The dust suction cavity comprises a dust suction cavity dust suction port and a dust suction cavity dust outlet, the cutting cavity 1 comprises a cutting cavity 1 dust suction port, one end of the dust suction pipeline 11 is connected with the cutting cavity 1 dust suction port, and the other end of the dust suction pipeline is connected with the dust suction cavity dust suction port. The cutting debris enters the dust suction pipe from the dust suction port of the cutting cavity 1, then enters the dust suction cavity from the dust suction port of the dust suction cavity, and then enters the dust collection channel through the dust outlet of the dust suction cavity to be discharged. When the saw blade 18 cuts objects, the generated dust and flying chips are absorbed by the first impeller 5, so that the dust and flying chips are prevented from being absorbed into the body of a user to cause harm, and the working environment of the cutting equipment is clean.

The cutting machine also comprises a dust collecting channel for collecting dust generated in the cutting process. The utility model provides an in the preferred embodiment, the dust collection passageway can be dismantled and locate the dust absorption chamber and keep away from one side of cutting chamber 1, is equipped with filter screen 19 in the dust collection passageway, from cutting the air that is absorb in the chamber 1 through the dust collection passageway discharged, and the dust is blockked by filter screen 19 and stays in the dust collection passageway.

When the cutting machine works, the motor drives the first impeller 5 to rotate, and negative pressure suction is generated. Dust can enter the dust suction pipeline 11 from the dust suction opening of the dust suction cavity; the dust suction pipeline 11 is connected with an air inlet of the dust collection channel, and air with dust enters the dust collection channel; the filter screen 19 is installed in the dust collecting channel to prevent dust particles from entering the dust collecting cavity.

In another preferred embodiment, a dust collection passage may also be provided on the dust suction duct 11.

The cutting machine works to generate polluted air with dust, the cutting machine generates suction force through the first impeller 5, the air can flow from the cutting cavity 1 to the dust collection channel and then is discharged through the filter screen 19, the dust can be remained on the filter screen 19 when passing through the dust collection channel, and the filtered and purified air can be discharged.

In a preferred embodiment, the first impeller 5 and the second impeller 20 are respectively disposed on two sides of the motor, but in other embodiments, the first impeller 5 and the second impeller 20 may be disposed on the same side of the motor, and the present invention is not limited thereto.

Preferably, the dust collection cavity is the accommodation space formed by the combination of two dust collection cavity wallboards 3, the dust collection channel comprises a dust collection part 6 and an air outlet part 7, the dust collection part 6 is arranged between the dust collection cavity and the air outlet part 7, and a filter screen 19 is arranged in the dust collection part 6.

The air sucked from the cutting chamber 1 passes through the dust collecting part 6 and is discharged from the air outlet part 7, while the dust is blocked by the filter net 19 and remains in the dust collecting part 6.

The dust collecting part 6 is detachably connected with the dust suction cavity, and when more dust is attached to the filter screen 19, the dust collecting part 6 is detached for cleaning.

The size of the dust collecting part 6 is affected by the power of the motor, and the larger the motor power, the larger the size of the dust collecting part 6.

The preferred is equipped with fixed plate 8 between motor chamber 2 and the dust absorption chamber, is equipped with a plurality of connecting piece on fixed plate 8, and the casing in motor chamber 2, fixed plate 8 and the dust absorption chamber is connected through a plurality of connecting piece for power transmission between dust absorption chamber and the motor chamber 2 passes through fixed plate 8, and the warp the enhancement of fixed plate 8 makes motor chamber 2 with connection between the dust absorption chamber is more stable. The fixing plate 8 is mainly contacted with the first bearing 14 in the motor cavity 2, and the motor can be protected by stabilizing and protecting the bearing 14.

The fixed plate 8 is unanimous with the radial cross-section's of motor chamber 2, dust absorption chamber shape, size, and fixed plate 8 includes middle part trompil district and ring joining region, and the rotor is worn to establish in the trompil district, is equipped with a plurality of connecting piece on the joining region for the power transmission between dust absorption chamber and the motor chamber 2 is strengthened through fixed plate 8 completely, further reduces shake and noise when equipment operation.

Preferably, still circumference is equipped with a plurality of louvre on the casing in motor chamber 2, and the position of a plurality of louvre is corresponding with first impeller 5's position, and the air can get into the fuselage through the motor louvre inside dispels the heat to the motor.

Preferably, the driving motor 4 is connected to a power source, which includes an external power line and a built-in battery.

The utility model provides a pair of in the preferred embodiment, the power is external power supply, including external power cord, external power cord is equipped with power cord cover 12 outward. In other embodiments, the lithium battery power supply can be separately arranged, or the lithium battery power supply and the external power line are arranged together, so that the equipment can be provided with a power supply, and can also be powered by an external power supply in a plugging mode.

Preferably, the dust suction duct 11 is disposed along the surface of the housing of the cutting device and penetrates the fixing plate 8, so that the dust suction duct 11 is also fixed by the fixing plate 8 to prevent large vibration and noise of the dust suction duct 11. The cutting device further comprises a base plate 15 for supporting purposes.

Preferably, the first handle 9 is arranged on the casing of the cutting cavity 1, and when cutting, pressure can be more easily applied to the ground or a wall body by the first handle 9, so that the cutting work can be smoothly carried out. The first in command 9 is along the radial setting of cutting chamber 1, and the first in command 9 includes the backup pad, and the backup pad sets up towards the cutting opening, when the cutting, can directly press the backup pad in order to realize the application of force to the first in command 9, and is more convenient and humanized.

Be equipped with second handle 10 on the casing in motor chamber 2, second handle 10 sets up along motor chamber 2 radial, and both ends all set up on the casing in motor chamber 2, and second handle 10 is handheld main application of force handle promptly for the operator is portable and grips.

In this embodiment, the second handle 10 comprises only one grip. However, in other embodiments, the second handle 10 may further include two grip pieces axially arranged, a left grip portion and a right grip portion are formed on the motor cavity 2, a distance between the two grip pieces is greater than one fourth of an axial dimension of the motor cavity 2, a force application range is wide, and position and force application direction switching is facilitated.

Preferably, the first impeller 5 comprises a first wheel disc and first blades, and the first blades are circumferentially and equidistantly arranged on the first wheel disc. The first blade is arc-shaped, and when the rotor rotates, the first impeller 5 sucks surrounding air to circulate along the radial direction of the rotor.

In other embodiments, the first blade may also be helical, here with the aim of creating the wind at the first impeller 5, without limiting the shape of the blade.

The second impeller 20 includes a second wheel disc and a second blade, the second blade being circumferentially equidistant on the second wheel disc. One side of the second wheel disc is provided with a second blade which is linear, and the contact area between the rotor and the air is enlarged by connecting the plurality of second radiating blades, the second wheel disc and the rotor.

In other embodiments, the second wheel disc can be provided with second blades on two sides, so that the heat dissipation area is enlarged. The second blade may also be circular or helical.

Preferably, the rotor is further provided with carbon brushes 13, the carbon brushes 13 are arranged in the motor cavity 2, and the two carbon brushes 13 are oppositely arranged on the rotor. The shell of the motor cavity 2 is also provided with carbon brush 13 holes, and the carbon brush 13 is exposed out of the shell of the motor cavity 2 through the carbon brush 13 holes.

The shell of the cutting cavity 1 is also provided with a cutting depth adjusting module 16 and a cutting angle adjusting module which respectively comprise a depth adjusting module and an angle adjusting switch, and the cutting depth and the cutting angle of the saw blade 18 can be adjusted through the cutting depth adjusting module 16 and the cutting angle adjusting module.

It should be noted that the embodiments of the present invention have better practicability and are not intended to limit the present invention in any way, and any person skilled in the art may change or modify the technical contents disclosed above to equivalent effective embodiments, but all the modifications or equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A cutting device is characterized by comprising a dust suction cavity, a motor cavity and a cutting cavity, wherein a rotor penetrates through the dust suction cavity, the motor cavity and the cutting cavity; a driving motor is arranged in the motor cavity and connected with the rotor to drive the rotor to rotate;

an impeller assembly is arranged on the rotor, the impeller assembly comprises a first impeller and a second impeller, and the rotor sequentially penetrates through the centers of the first impeller and the second impeller and is fixedly connected with the first impeller and the second impeller; the first impeller is arranged in the dust collection cavity, and the second impeller is arranged in the motor cavity;

the rotor rotates to drive the impeller assembly to rotate so as to form negative pressure in the dust suction cavity, and the cutting cavity is communicated with the dust suction cavity through a dust suction pipeline;

one side of the dust suction cavity, which is far away from the cutting cavity, or the dust suction pipeline can be detachably connected with a dust collection channel, a filter screen is arranged in the dust collection channel, and air sucked in the cutting cavity is discharged through the dust collection channel while dust is blocked by the filter screen and is left in the dust collection channel.

2. The cutting device according to claim 1, wherein the dust collecting channel comprises a dust collecting space and an air outlet space, the dust collecting space is arranged between the dust suction chamber and the air outlet space, and the filter screen is arranged in the dust collecting space; the dust collecting space is detachably connected with the dust suction cavity;

the air sucked from the cutting cavity passes through the dust collecting space and is discharged from the air outlet space, and the dust is blocked by the filter screen and is left in the dust collecting space.

3. The cutting device according to claim 1, wherein a fixing plate is arranged between the motor cavity and the dust suction cavity, a plurality of connecting pieces are arranged on the fixing plate, and a housing of the motor cavity, the fixing plate and a housing of the dust suction cavity are connected through the plurality of connecting pieces;

the shapes and the sizes of the radial sections of the fixed plate, the motor cavity and the dust suction cavity are consistent;

the fixed plate comprises a middle opening area and a circular ring connecting area, the rotor is penetrated through the opening area, and the connecting area is provided with a plurality of connecting pieces.

4. The cutting device according to claim 1, wherein a plurality of heat dissipation holes are circumferentially formed in a housing of the motor cavity, and the positions of the heat dissipation holes correspond to the positions of the impeller.

5. The cutting apparatus of claim 1, wherein the drive motor is connected to a power source comprising an external power cord and a built-in battery.

6. The cutting apparatus according to claim 3, wherein the dust suction duct is provided along a surface of a housing of the cutting apparatus and passes through the fixing plate.

7. The cutting apparatus of claim 1, wherein a first handle is provided on the housing of the cutting chamber and a second handle is provided on the housing of the motor chamber;

the first handle is arranged along the radial direction of the cutting cavity; the first handle includes a support plate disposed toward a cutting opening of the cutting cavity.

8. The cutting apparatus according to claim 7, wherein the second handle is disposed in a radial direction of the motor cavity and both ends are connected to the housing;

the second handle comprises two holding pieces which are axially arranged, and the distance between the two holding pieces is larger than one fourth of the axial size of the motor cavity.

9. The cutting apparatus according to claim 1, wherein the first impeller and the second impeller are respectively provided on both sides or on the same side of the motor;

the first impeller comprises a first wheel disc and first blades, and the first blades are circumferentially arranged on the first wheel disc at equal intervals; the first blade is arc-shaped or spiral, and when the rotor rotates, the first impeller sucks ambient air to circulate along the radial direction of the rotor;

the second impeller comprises a second wheel disc and second blades, and the second blades are circumferentially arranged on the second wheel disc at equal intervals; one or two surfaces of the second wheel disc are provided with the second blades; the second blades are linear, arc or spiral, and the contact area between the rotor and air is enlarged by connecting the second radiating blades, the second wheel disc and the rotor.

10. The cutting apparatus according to claim 1, wherein the rotor further comprises carbon brushes disposed in the motor cavity, and the carbon brushes are disposed opposite to each other on the rotor; the motor cavity is characterized in that a carbon brush hole is further formed in the shell of the motor cavity, and the carbon brush is exposed out of the shell of the motor cavity through the carbon brush hole.