CN111570912A

CN111570912A - Cutting saw and casing

Info

Publication number: CN111570912A
Application number: CN202010555519.1A
Authority: CN
Inventors: 托马斯·阿诺尔; 王海滨
Original assignee: Globe Jiangsu Co Ltd
Current assignee: Globe Jiangsu Co Ltd
Priority date: 2020-06-15
Filing date: 2020-06-17
Publication date: 2020-08-25

Abstract

The invention provides a dicing saw and a case, the dicing saw comprising: sawing a cutter; the driving component drives the saw blade to operate so that the saw blade realizes the cutting function of the cutting saw; and a housing, the drive assembly being at least partially mounted within the housing; the shell is provided with an air inlet and a magnetic element positioned on the lateral edge of the air inlet. Compared with the prior art, the cutting saw provided by the invention has the advantages that the magnetic element is arranged at the air inlet to adsorb the metal residues in the air inlet, so that the metal residues are effectively prevented from entering the cutting saw, the prime motor, the control circuit board and the like are prevented from being damaged by the metal residues, and the service life of the cutting saw is further effectively prolonged.

Description

Cutting saw and casing

Technical Field

The present invention relates to a dicing saw and a housing for the dicing saw.

Background

The cutting saw is a cutting tool using electricity, gasoline and the like as power, is usually used for cutting timber, stone, steel, concrete and the like, effectively saves time, manpower and the like consumed by cutting materials, and further improves the working efficiency of users. However, the existing cutting saws generate a large amount of abrasive residues when cutting concrete, such as: concrete residues, metal residues, and the like. If these abrasive residues are sucked into the interior of the dicing saw, they may cause damage to the prime mover, control circuit board, etc. located inside the dicing saw, and even cause the dicing saw to malfunction, rendering the dicing saw useless.

In view of the above, there is a need for a new dicing saw to solve the above problems.

Disclosure of Invention

The invention aims to provide a dicing saw, which is characterized in that a magnetic element is arranged at an air inlet to adsorb metal residues in air inlet, so that the metal residues are effectively prevented from entering the inside of the dicing saw, a prime motor, a control circuit board and the like are prevented from being damaged by the metal residues, and the service life of the dicing saw is further effectively prolonged.

To achieve the above object, the present invention provides a dicing saw comprising: sawing a cutter; the driving assembly is connected with the saw blade to drive the saw blade to operate; and a housing, the drive assembly being at least partially mounted within the housing; the shell is provided with an air inlet and a magnetic element positioned on the lateral edge of the air inlet.

As a further improvement of the present invention, the housing is provided with an accommodating cavity, and the driving assembly is at least partially located in the accommodating cavity; the magnetic element is positioned on one side of the shell, which deviates from the accommodating cavity.

As a further improvement of the present invention, the housing is provided with a fixing groove to fix the magnetic member.

As a further improvement of the present invention, the housing is further provided with a ferromagnetic part, and the magnetic element is fixed to the ferromagnetic part by attraction.

As a further improvement of the present invention, the ferromagnetic component is a self-tapping screw, a head of the self-tapping screw is in a flat plate shape, the self-tapping screw is provided on the housing, and the head of the self-tapping screw is flush with the housing at a periphery thereof.

As a further improvement of the invention, the shell is provided with a groove formed by inwards recessing from the side wall of the shell, and the air inlet is arranged on the bottom wall of the groove.

As a further improvement of the present invention, the magnetic element is disposed on the bottom wall of the groove and located on a side of the air inlet facing away from the saw blade.

As a further improvement of the invention, the bottom wall of the groove is outwards protruded to form a reinforcing rib; the reinforcing rib forms a fixing groove to fix the magnetic element.

As a further improvement of the invention, the shell is also provided with an air inlet cover plate matched with the air inlet, and an air inlet channel is formed between the air inlet cover plate and the shell; the air inlet channel comprises an air inlet end communicated with the outside and an air outlet end communicated with the air inlet; the air inlet end is positioned on one side of the air inlet cover plate, which is away from the saw blade.

As a further improvement of the invention, the magnetic element is positioned between the air inlet end and the air outlet end.

As a further improvement of the present invention, a positioning column is further disposed on a side of the air inlet cover facing the magnetic element, and the positioning column abuts against the magnetic element to assist in fixing the magnetic element.

As a further improvement of the present invention, the magnetic element is a magnet or an electromagnetic coil.

As a further improvement of the invention, the shell is also provided with an air inlet cover plate matched with the air inlet; the magnetic element is fixedly arranged on one side, facing the air inlet, of the air inlet cover plate.

As a further improvement of the invention, the cutting saw also comprises a battery assembly for supplying power to the driving assembly, and the battery assembly is a single-voltage battery pack or a multi-voltage battery pack.

The present invention also provides a housing for a power tool, comprising: the air conditioner comprises a shell, a fan and a controller, wherein the shell is provided with an air inlet and an air outlet; and the magnetic element is arranged on the side edge of the air inlet so as to filter out metal residues in the air entering the air inlet.

As a further improvement of the present invention, a ferromagnetic part is further disposed on the housing, and the magnetic element is fixed to the ferromagnetic part by adsorption.

As a further improvement of the invention, the side wall of the shell is outwards protruded to form a reinforcing rib; the reinforcing rib forms a fixing groove to fix the magnetic element.

The invention has the beneficial effects that: according to the cutting saw, the magnetic element is arranged at the air inlet to adsorb the metal residues in the air inlet, so that the metal residues are effectively prevented from entering the cutting saw, the metal residues are prevented from damaging a prime motor, a control circuit board and the like, and the service life of the cutting saw is effectively prolonged.

Drawings

Fig. 1 is a perspective view of the dicing saw of the present invention.

Fig. 2 is a perspective view of another angle of the dicing saw of fig. 1.

Fig. 3 is a perspective view of the saw of fig. 1 with the second housing removed.

Fig. 4 is an exploded perspective view of the chassis.

FIG. 5 is a schematic cross-sectional view of the housing, the magnetic element, and the flap plate after being assembled.

Fig. 6 is an enlarged partial schematic view of the air inlet of fig. 4.

Fig. 7 is a partially enlarged schematic view of fig. 5.

Fig. 8 is a perspective view of the vent cover plate.

Fig. 9 is a perspective view of the shroud assembly and the light assembly.

Fig. 10 is a perspective view of the shroud assembly of fig. 9.

Fig. 11 is an exploded perspective view of the lighting assembly.

Fig. 12 is a schematic diagram showing the relationship between the light emitted by the first and second illuminating lamps and the saw blade.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, 2 and 3, the present invention discloses a dicing saw 100, which includes a housing 10, a driving assembly 20 mounted on the housing 10, a saw blade 30 engaged with the driving assembly 20, a guard assembly 40 engaged with the saw blade 30, an illumination assembly 50 and a battery assembly 60.

Referring to fig. 1, 2 and 4, the housing 10 includes a housing 11, an auxiliary handle 12 disposed at a front end of the housing 11, a main handle 13 disposed at a rear end of the housing 11, a magnetic element 14 mounted on the housing 11, a flap 15, and a mounting arm 16 disposed at a front end of the housing 11. Referring to fig. 5, the housing 11 includes a first housing 111, a second housing 112 opposite to the first housing 111, and a receiving cavity 113, where the receiving cavity 113 is formed by the first housing 111 and the second housing 112.

Referring to fig. 6 and 7, the first housing 111 is provided with a groove 1110, an air inlet 1111, a fixing groove 1112 and a ferromagnetic member 1113. The groove 1110 is formed by being recessed inward from a side of the first housing 111 away from the receiving cavity 113. The air inlet 1111 is disposed on the bottom wall of the groove 1110, so that the external air can enter the accommodating cavity 113 through the air inlet 1111. The fixing groove 1112 is disposed on the bottom wall of the groove 1110 and located on a side of the air inlet 1111 facing away from the saw blade 30. The fixing groove 1112 is engaged with the magnetic member 14 to fix the magnetic member 14. In this embodiment, the bottom wall of the trough 1110 protrudes upward to form a plurality of ribs 1116, so as to enhance the strength of the bottom wall of the trough 1110; the fixing groove 1112 is formed by the reinforcing rib 1116; with such an arrangement, on the premise that the strength of the first housing 111 is not reduced, a containing space can be made for metal residues, and meanwhile, the overall volume of the housing 11 is not increased. In the present embodiment, the fixing groove 1112 is formed by four reinforcing ribs 1116, but it is understood that in other embodiments, the number of the reinforcing ribs 1116 forming the fixing groove 1112 may be set as required. The ferromagnetic part 1113 is disposed in the fixing groove 1112 to fix the magnetic element 14, and the ferromagnetic part 1113 is fixedly mounted on the first housing 111. The magnetic element 14 is fixed to the ferromagnetic part 1113 by attraction. The arrangement is convenient for the user to remove the magnetic element 14, and the magnetic element 14 is convenient to mount and dismount, so that the user can remove the metal residues adsorbed on the magnetic element 14. In this embodiment, the ferromagnetic member 1113 is a self-tapping screw 1114. The head of the tapping screw 1114 is flat. Referring to fig. 7, after the self-tapping screw 1114 is fixedly mounted in the fixing groove 1112, the head of the self-tapping screw 1114 is flush with the housing 1115 at the periphery thereof, so that the magnetic element 14 and the head of the self-tapping screw 1114 have the largest contact area, and the magnetic element 14 can be fixedly attached to the self-tapping screw 1114. Of course, it is understood that in other embodiments, the ferromagnetic part 1113 may also be an iron sheet, a cobalt sheet, or the like. Referring to fig. 2, the second housing 112 is provided with an air outlet 1121 matching with the air inlet 1111, so that the air in the accommodating cavity 113 can be discharged from the air outlet 1121. In this embodiment, the air inlet 1111 and the air outlet 1121 are all louvered air inlets, but in other embodiments, the patterns of the air inlet 1111 and the air outlet 1121 may be set according to needs, and the invention is not limited thereto. The receiving cavity 113 is used for receiving the driving assembly 20 and the battery assembly 60. The assist handle 12 is provided at the front end of the housing 11, is substantially U-shaped, and has one end fixedly attached to the first housing 111 and the other end fixedly attached to the second housing 112. The main handle 13 is disposed at a rear end of the housing 11 and is engaged with the auxiliary handle 12 such that an operator can hold the main handle 13 with one hand and the auxiliary handle 12 with the other hand, thereby allowing the operator to better manipulate the dicing saw 100. The magnetic element 14 is fixedly installed at a side edge of the air inlet 1111 and is located at a side of the first housing 111 facing away from the receiving cavity 113. Since the dicing saw 100 may generate metal residue particles when cutting metal and reinforced concrete, the metal residue particles may be sucked into the housing 11 of the dicing saw 100 along with the air flow, thereby damaging the motor, the circuit control board, and the like, and further affecting the service life of the dicing saw 100. Because the magnetic element 14 is disposed at the side edge of the air inlet 1111, the magnetic element 14 is convenient to adsorb the metal residues in the air entering the air inlet 1111, so that the metal residue particles are effectively prevented from entering the housing 11 to damage the motor, the circuit control board and the like, and the service life of the dicing saw 100 is further effectively prolonged.

Referring to fig. 1, 5 and 8, the air inlet cover 15 is coupled to the air inlet 1111 and detachably mounted on the first housing 111. An air inlet channel 151 is formed between the air inlet cover plate 15 and the first shell 111. The air inlet channel 151 comprises an air inlet end 152 communicated with the outside and an air outlet end 153 communicated with the air inlet 1111. The magnetic element 14 is located between the air inlet end 152 and the air outlet end 153. The air inlet end 151 is located on one side of the air inlet cover plate 15 departing from the saw blade 30. So set up for metal residue, dust particle, water droplet etc. must turn 180 degrees before can get into the inside of casing 11 (as shown by the arrow line in fig. 1), thereby greatly reduced metal residue, dust particle, water droplet etc. and inhaled the risk in the casing 11, and then effectively promoted the life of slitting saw 100. In the present embodiment, the air inlet channel 151 is substantially linear, but in other embodiments, the air inlet channel 151 may be spiral to further filter out metal residues, dust particles, water drops, etc. in the wind by centrifugal force. Preferably, a positioning post 154 abutting against the magnetic element 14 is further disposed on a side of the air inlet cover plate 15 facing the magnetic element 14 to assist in fixing the magnetic element 14.

In the present embodiment, the magnetic element 14 is disposed at one side of the air inlet 1111, but in other embodiments, the magnetic element 14 may also be disposed along the periphery of the air inlet 1111. In this embodiment, the magnetic element 14 is disposed on the bottom wall of the groove 1110, but in other embodiments, the magnetic element 14 may also be disposed on the side wall of the groove 1110. In the present embodiment, the magnetic element 14 is a magnet, but in other embodiments, the magnetic element 14 may be an electromagnetic coil. In the present embodiment, the magnetic element 14 is fixedly installed on the first housing 111, but in other embodiments, the magnetic element 14 may also be fixedly installed on a side of the air inlet cover 15 facing the air inlet 1111.

Referring to fig. 3, the driving assembly 20 is configured to drive the saw blade 30 to operate, so that the saw blade 30 performs a cutting function of the dicing saw 100. The driving assembly 20 is at least partially disposed in the receiving cavity 113, and includes a motor 21 installed in the receiving cavity 113 and an output shaft assembly (not shown) coupled to the motor 21. In the present embodiment, the prime mover 21 is an electric motor, but in other embodiments, the prime mover 21 may be other machines, such as a gasoline engine. The prime mover 21 is provided with a heat dissipating blade 211 so as to draw external wind during operation of the prime mover 21, such that the wind enters from the wind inlet 1111 and is discharged from the wind outlet 1121, thereby dissipating heat of the prime mover 21. The output shaft assembly is used for driving the saw blade 30 to operate. The saw blade 30 is pivotally mounted to the mounting arm 16. In the present embodiment, the saw blade 30 is a circular saw blade, but in other embodiments, the saw blade 30 may be a rectangular saw blade or a chain saw. The present embodiment is not limited to the specific form of the saw blade 30. In this embodiment, the driving element 20 is partially disposed in the receiving cavity 113, but in other embodiments, the driving element 20 may be disposed entirely in the receiving cavity 113.

Referring to fig. 9 and 10, the shield assembly 40 includes a shield 41 and a positioning mechanism 42 cooperating with the shield 41. The shroud 41 is at least partially positioned above the saw blade 30 and surrounds at least a portion of the saw blade 30 to prevent splashing of metal residue, concrete residue, etc. generated during cutting from injuring a person. The shield 41 is pivotally mounted to the mounting arm 16 such that the shield 41 can pivot about the mounting arm 16 to facilitate a user in adjusting the position of the shield 41 as desired. The guard 41 includes a first guard wall 411 and a second guard wall 412 disposed in parallel with the saw blade 30, and a connecting arm 413 connecting the first guard wall 411 and the second guard wall 412. The first and

second protection walls

411, 412 are located on both sides of the saw blade 30. The positioning mechanism 42 includes a first positioning member 421 disposed on the first protection wall 411 and a second positioning member 422 pivotally mounted on the mounting arm 16, and the first positioning member 421 and the second positioning member 422 cooperate to fix the shield 41. In this embodiment, the first positioning elements 421 are a plurality of positioning slots. The second positioning member 422 includes a push button 4221 pivotally mounted on the mounting arm 16 and cooperating with the positioning slot, and an elastic element 4222 cooperating with the push button 4221. One end of the elastic element 4222 is fixedly mounted on the push button 4221, and the other end is fixedly mounted on the mounting arm 16. When in use, the push button 4221 is pushed first, so that the push button 4221 is separated from the positioning groove, the elastic element 4222 is elastically deformed under the action of the push button 4221, and at this time, the shield 41 can be rotated to adjust the relative position relationship between the shield 41 and the mounting arm 16; the push button 4221 is then released, at which time the push button 4221 is reset by the resilient member 4222 and cooperates with the detent to secure the shield 41.

Referring to fig. 11 and 12, and fig. 1 and 2, the lighting assembly 50 is used for illuminating an area 70 to be cut, and includes a first lighting lamp 51, a second lighting lamp 52, and a lamp holder 53. The first illuminating lamp 51 and the second illuminating lamp 52 are respectively positioned on two sides of a plane where the saw blade 30 is located, so that light rays emitted by the first illuminating lamp 51 and light rays emitted by the second illuminating lamp 52 form an overlapping area 71 under the saw blade 30, a double-light effect is achieved, a cutting line is effectively illuminated, and a user can conveniently cut. The first illuminating lamp 51 and the second illuminating lamp 52 are LED lamps and are fixedly mounted at two ends of the lamp holder 53. The lamp holder 53 is straddled and fixed on the connecting wall 413, so that the first illuminating lamp 51 and the second illuminating lamp 52 are respectively positioned on two sides of the plane where the saw blade 30 is positioned. The lamp holder 53 is further provided with a reflector 531 and a dust cover 532 which are matched with the first illuminating lamp 51 and the second illuminating lamp 52. In this embodiment, the first and

second illumination lamps

51 and 52 are fixedly mounted on the shroud 41 through the lamp sockets 53. However, in other embodiments, the first illuminating lamp 51 and the second illuminating lamp 52 can also be fixedly installed on the auxiliary handle 12; referring to fig. 4, the auxiliary handle 12 includes a first portion 121 located on one side of the plane of the saw blade 30 and a second portion 122 located on the other side of the plane of the saw blade 30; the first illumination lamp 51 is fixedly mounted to the first portion 121, and the second illumination lamp 52 is fixedly mounted to the second portion 122. So configured, the dual light effect can be achieved as well. Preferably, the cutting saw 100 is further provided with a spiral retractable wire (not shown), one end of the spiral retractable wire is connected to the lighting assembly 50, and the other end of the spiral retractable wire is connected to the battery assembly 60, so that the battery assembly 60 supplies power to the lighting assembly 50. The battery assembly 60 is used for supplying power to the driving assembly 20. In the present embodiment, the battery assembly 60 is a single-voltage battery pack. Of course, it is understood that the battery assembly 60 may be a multi-voltage battery pack in other embodiments. So set up, can be so that multiple electric tool sharing same battery package to be convenient for the user to maintain the battery package, reduce use cost.

Compared with the prior art, the dicing saw 100 provided by the invention has the advantages that the magnetic element 14 is arranged at the air inlet 1111 to adsorb the metal residues in the inlet air, so that the metal residues are effectively prevented from entering the inside of the dicing saw 100, the prime mover 21, the control circuit board and the like are prevented from being damaged by the metal residues, and the service life of the dicing saw 100 is further effectively prolonged.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.

Claims

1. A dicing saw, comprising:

sawing a cutter;

the driving assembly is connected with the saw blade to drive the saw blade to operate; and

the driving assembly is at least partially installed in the shell, and the shell is provided with an air inlet and a magnetic element positioned on the side edge of the air inlet.

2. The dicing saw of claim 1, wherein: the shell is provided with an accommodating cavity, at least part of the driving assembly is located in the accommodating cavity, and the magnetic element is located on one side of the shell, which deviates from the accommodating cavity.

3. The dicing saw of claim 1, wherein: the housing is provided with a fixing groove to fix the magnetic member.

4. The dicing saw of claim 1, wherein: the shell is further provided with a ferromagnetic part, and the magnetic element is fixed on the ferromagnetic part in an adsorption mode.

5. The dicing saw of claim 4, wherein: the ferromagnetic part is a self-tapping screw, the head of the self-tapping screw is in a flat plate shape, the self-tapping screw is arranged on the shell, and the head of the self-tapping screw is flush with the shell at the periphery of the self-tapping screw.

6. The dicing saw of claim 1, wherein: the casing is provided with certainly the inside sunken recess that forms of casing lateral wall, the air intake set up in on the diapire of recess.

7. The dicing saw of claim 6, wherein: the magnetic element is arranged on the bottom wall of the groove and is positioned on one side of the air inlet, which deviates from the saw blade.

8. The dicing saw of claim 7, wherein: the bottom wall of the groove protrudes outwards to form a reinforcing rib, and the reinforcing rib forms a fixing groove to fix the magnetic element.

9. The dicing saw of claim 1, wherein: the casing still be provided with air intake matched with wind gap apron, wind gap apron with form inlet air channel between the casing, inlet air channel include with external air inlet end that is linked together and with the air-out end that the air intake is linked together, the inlet air end is located wind gap apron dorsad leaves one side of saw sword.

10. The dicing saw of claim 9, wherein: the magnetic element is positioned between the air inlet end and the air outlet end.

11. The dicing saw of claim 9, wherein: and one side of the air inlet cover plate facing the magnetic element is also provided with a positioning column which is abutted against the magnetic element so as to assist in fixing the magnetic element.

12. The dicing saw of claim 1, wherein: the magnetic element is a magnet or an electromagnetic coil.

13. The dicing saw of claim 1, wherein: the shell is further provided with an air inlet cover plate matched with the air inlet, and the magnetic element is fixedly installed on one side, facing the air inlet, of the air inlet cover plate.

14. The dicing saw of claim 1, wherein: the cutting saw still includes for the battery pack of drive assembly power supply, battery pack is single-pressure battery package or many voltage battery package.

15. A housing for a power tool, comprising:

the air conditioner comprises a shell, a fan and a controller, wherein the shell is provided with an air inlet and an air outlet; and

the magnetic element is arranged on the side edge of the air inlet to filter out metal residues in the air entering the air inlet.

16. The enclosure of claim 15, wherein: the shell is further provided with a ferromagnetic part, and the magnetic element is fixed on the ferromagnetic part in an adsorption mode.

17. The enclosure of claim 16, wherein: the ferromagnetic part is a self-tapping screw, the head of the self-tapping screw is in a flat plate shape, the self-tapping screw is arranged on the shell, and the head of the self-tapping screw is flush with the shell at the periphery of the self-tapping screw.

18. The enclosure of claim 15, wherein: the side wall of the shell protrudes outwards to form a reinforcing rib, and the reinforcing rib forms a fixing groove to fix the magnetic element.