CN217668182U

CN217668182U - Dust collecting device

Info

Publication number: CN217668182U
Application number: CN202221043469.XU
Authority: CN
Inventors: 高辉; 印春阳; 贺斌
Original assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Current assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-10-28
Anticipated expiration: 2032-04-29

Abstract

A dust collecting device is arranged on an electric tool and comprises a shell, a dust collecting box inserted in the shell and a telescopic component supported on the shell; the dust collecting box comprises a box body with an opening facing one end, a cover plate connected with the opening end of the box body and a filter connected with the cover plate; a collecting cavity is formed by the filter and the box body in a surrounding manner, and an air inlet channel communicated with the collecting cavity is formed in the telescopic assembly; be equipped with the gas vent on the apron, the filter shelters from the gas vent, and the collection chamber communicates with each other with the external world through the filter, and the apron is equipped with the protruding a pair of guide rail of stretching of orientation box body, and the filter both sides are equipped with the guide part of being connected with the guide rail, and the filter passes through guide part sliding insertion apron to realize the convenient installation of filter.

Description

Dust collecting device

[ technical field ]

The utility model relates to a collection dirt technical field, in particular to a dust collecting device for use with hand-held type electric tool together.

[ background art ]

The existing hand-held drilling tools (such as electric hammers) generate dust and debris during operation, which not only affect working efficiency and environment, but also have certain harm to the health of operators, so that the dust collecting device is more and more widely applied to the drilling tools, especially the hand-held drilling tools with impact. However, after the dust collecting device is used for a period of time, the filter in the dust collecting device is blocked by dust, which affects the filtering effect, and the above situation usually needs to be realized by removing the filter, cleaning the filter or replacing the filter.

For example, chinese patent application publication No. CN102189531a discloses a dust collecting device for an electric power tool, in which a filter is held between a cover body and a mounting plate, an engaging projection is provided on an upper surface of the mounting plate, a mounting hole into which the engaging projection is inserted is provided in the cover body, and the engaging projection is engaged with the mounting hole. In this scheme, complex operation when the filter is installed in dust collecting device, and when dismantling the filter, because mounting panel and lid buckle are connected, the operator need exert oneself and separate mounting panel and lid, just can the detachable filter, not only hard still can lead to the part to damage.

Accordingly, there is a need for an improved dust collecting device that overcomes the shortcomings of the prior art.

[ contents of utility model ]

To the not enough of prior art, the utility model aims to provide a convenient dust collecting device of filter dismouting.

The utility model provides a technical scheme that prior art problem adopted is: a dust collecting device is arranged on an electric tool and comprises a shell, a dust collecting box inserted in the shell and a telescopic component supported on the shell; the dust collecting box comprises a box body with an opening facing one end, a cover plate connected with the opening end of the box body and a filter connected with the cover plate; a collecting cavity is defined by the filter and the box body, and an air inlet channel communicated with the collecting cavity is arranged in the telescopic assembly; the cover plate is provided with an air outlet, the filter covers the air outlet, the collecting cavity is communicated with the outside through the filter, the cover plate is provided with a pair of guide rails protruding towards the box body, two sides of the filter are provided with guide parts connected with the guide rails, and the filter is inserted into the cover plate through the guide parts in a sliding mode.

The further improvement scheme is as follows: the guide rail is provided with a first wall protruding towards the box body along the cover plate and a second wall turning inwards along the first wall, the cover plate, the first wall and the second wall are enclosed to form a guide groove, and the guide part protrudes towards the periphery of the filter and is inserted into the guide groove.

The further improvement scheme is as follows: the filter is provided with a first sealing ring protruding from the surface of the guide part towards one end face of the cover plate, and the first sealing ring surrounds the exhaust port and is attached to the cover plate.

The further improvement scheme is as follows: and a second sealing ring which protrudes outwards around the exhaust port is arranged on the other end face of the cover plate.

The further improvement scheme is as follows: the dust collecting device comprises a connecting part which is connected with the second sealing ring and the electric tool, the connecting part is fixedly arranged in the shell and is connected with the second sealing ring in a pressing mode, an exhaust passage is arranged in the connecting part, and the exhaust passage is communicated with the collecting cavity through a filter.

The further improvement scheme is as follows: the apron has the air inlet adjacent with the gas vent, flexible subassembly connect in the air inlet, inlet channel passes through air inlet and collection chamber intercommunication.

The further improvement scheme is as follows: the cover plate is connected to one side wall of the box body through a pin so as to be pivoted to be opened and closed.

The further improvement scheme is as follows: one end of the cover plate opposite to the pin is provided with a first buckling part extending towards the box body, and the first buckling part is clamped on the box body.

The further improvement scheme is as follows: the other two side walls of the cover plate are provided with a pair of second buckling parts extending towards the box body, and the dust collection box is buckled and held on the shell through the second buckling parts.

The further improvement scheme is as follows: the telescopic component comprises a telescopic pipe, a sliding pipe, a switching pipe and a collector, the sliding pipe is slidably supported on the shell, the collector is fixedly arranged at the front end of the sliding pipe, the switching pipe is fixedly arranged in the shell and is in sealing connection with the air inlet, and the telescopic pipe is partially accommodated in the sliding pipe and is connected with the collector and the switching pipe.

The further improvement scheme is as follows: the electric tool comprises a tool body, a motor arranged in the tool body and a dust collecting fan driven by the motor, wherein the dust collecting fan is communicated with an exhaust passage of the dust collecting device.

Compared with the prior art, the utility model discloses following beneficial effect has: the apron is equipped with the protruding a pair of guide rail of stretching of orientation box body, the filter both sides be equipped with the guide part that the guide rail is connected, the filter passes through guide part sliding insertion the apron for the filter installation is convenient, when follow-up filter maintenance dismantlement, directly presses down the dismantlement that the filter can relax along the guide rail slip, has avoided dismantling the phenomenon that the spare part damaged to appear in the filter.

[ description of the drawings ]

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:

fig. 1 is a perspective view of a dust collecting device mounted on a power tool according to a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a perspective view of the dirt collection bin of FIG. 1;

FIG. 4 is a perspective view of the dust box of FIG. 3 with the cover plate open;

fig. 5 is an exploded view of the cover plate shown in fig. 4.

[ detailed description of the invention ]

The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Words such as "upper," "lower," "front," "rear," and the like, which indicate orientation or positional relationships, are used solely to facilitate the description of the invention and to simplify the description, and do not indicate or imply that the referenced devices/elements must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Referring to fig. 1 to 5, the present invention discloses a dust collecting device 200 for being mounted on an electric tool, in the present embodiment, the electric tool 100 is shown as an electric hammer, and of course, the dust collecting device 200 can be connected to other electric tools with drilling or impact functions. The output direction of the electric tool 100 is defined as a front-back direction, and the direction perpendicular to the front-back direction is defined as a vertical direction, and the impact tool 100 includes a tool body 10, a grip portion 12 connected to the lower side of the tool body 10, a motor 13 installed in the tool body 10, a dust collecting fan 14 and a cooling fan 15 driven by the motor 13, a transmission assembly 16 driven by the motor 13, and an impact assembly 17 driven by the transmission assembly 16 and causing the electric tool to vibrate.

As shown in fig. 2, the grip 12 includes a switch trigger 120 installed near a lower side of the tool body 10, the dust collecting fan 14 and the cooling fan 15 are installed on a motor shaft 130 of the motor 13, the dust collecting fan 14 provides a driving force for the dust collecting device 200 to suck dust and debris generated by drilling, the cooling fan 15 dissipates heat from the motor 13 to ensure stable operation of the power tool 100, and the striking assembly 17 includes a cylinder 172, a hammer 170 located in the cylinder 172, and a striking rod 171 struck by the hammer 170 in a front-rear direction.

In actual use, the operator grips the grip portion 12, presses the trigger 120 with a hand, starts the motor 13, and drives the transmission assembly 16 and the impact assembly 17 to operate. Specifically, the hammer 170 reciprocates in the front-rear direction in the cylinder 172 and strikes the striking rod 171, and the striking rod 171 strikes the drill 110 mounted on the working head 11 at the front end of the tool body 10.

The upper end of the dust collecting device 200 is connected to the tool body 10, and the dust collecting device 200 is provided with a lock 24 which is disconnected from the tool body 10. The dust collecting device 200 includes a housing 20, a dust collecting box 21 inserted into the housing 20, and a telescopic assembly 22 supported on the housing 20. The dust collecting box 21 comprises a box body 210 with one end open, a cover plate 211 connected with the open end of the box body 210 and a filter 212 connected with the cover plate 211; a collecting cavity 60 is defined by the filter 212 and the box body 210, and an air inlet channel 50 communicated with the collecting cavity 60 is arranged in the telescopic assembly 22; the cover plate 211 is provided with an exhaust port 2112, the filter 212 shields the exhaust port 2112, and the collection chamber 60 is communicated with the outside through the filter 212, so as to filter the gas in the collection chamber 60.

As shown in fig. 5, the cover 211 has a pair of guide rails 2111 protruding toward the box body 210, specifically, the guide rails 2111 have a first wall protruding toward the box body 210 along the cover 211 and a second wall turning inward along the first wall, and the cover 211, the first wall and the second wall enclose a guide groove; the two sides of the filter 212 are provided with guide parts 2121 connected with the guide rails 2111, the guide parts 2121 are inserted into the guide grooves along the outward Zhou Tushen of the filter 212, and the filter 212 is slidably inserted into the cover plate 211 through the guide parts 2121, so that the filter 212 is convenient to assemble and disassemble.

As shown in fig. 3 and 5, the filter 212 has a first sealing ring 2122 protruding from the surface of the guiding portion 2121 toward one end of the cover 211, and the first sealing ring 2122 surrounds the air outlet 2112 and is attached to the lower surface of the cover 211, so as to connect the periphery of the filter 212 to the air outlet 2112 in a sealing manner. The upper end surface of the cover plate 211 is provided with a second sealing ring 2113 protruding upward around the exhaust port 2112. The dust collecting device 200 includes a connecting portion 23 connecting the second sealing ring 2113 and the power tool 100, and the connecting portion 23 is fixedly disposed in the housing 20 and is connected to the second sealing ring 2113 in a pressing manner, so as to connect the connecting portion 23 and the cover plate 211 in a sealing manner. An exhaust passage 70 is arranged in the connecting part 23, the exhaust passage 70 is communicated with the collecting cavity 60 through a filter 212, and the gas in the collecting cavity 60 is filtered and then exhausted through the exhaust passage 70.

Referring to fig. 2 and 3, the cover plate 211 has an air inlet 2114 adjacent to an air outlet 2112, the telescopic assembly 22 is connected to the air inlet 2114, the air inlet passage 50 is communicated with the collection chamber 60 through the air inlet 2114, the telescopic assembly 22 includes a telescopic tube 221, a sliding tube 222, an adapter tube 223 and a collector 224, the sliding tube 222 is slidably supported on the housing 20, the collector 224 is fixedly disposed at the front end of the sliding tube 222, the adapter tube 223 is fixedly disposed in the housing 20 and is in sealed connection with the air inlet 2114, the telescopic tube 221 is partially housed in the sliding tube 212 and is connected to the collector 210 and the adapter tube 213, and the adapter tube 213 is in sealed connection with the air inlet 2114.

Referring to fig. 2, the collector 210 is attached to the surface to be perforated, and dust and debris generated by the perforation pass through the collector 210, the extension tube 221 and the adapter tube 223 and are finally sucked into the collection chamber 60 of the dust box 21. The dust collecting fan 14 communicates with the exhaust passage 70, and when the power tool 100 is operated, the dust collecting fan 14 in the power tool 100 rotates to form a negative pressure, causing dust and debris generated by drilling to be sucked and guided to the collection chamber 60. The direction of the arrow shown in fig. 2 is the air flowing direction, and after the dust or debris flowing together with the air flows into the air intake passage 50 and the collection chamber 60, the filter 212 receives the dust or debris in the collection chamber 60, and the air filtered by the filter 212 flows into the dust collection fan 14 through the air exhaust passage 70 and is exhausted.

Referring to fig. 3 and 4, the cover 211 is connected to a side wall of the box 210 by a pin to pivot open and close, a first locking portion 2115 extending toward the box 210 is disposed at an end of the cover 211 opposite to the pin, the first locking portion 2115 is locked to the box 210, a pair of second locking portions 2116 extending toward the box 210 are disposed on two remaining side walls of the cover 211, and the dust collecting box 21 is locked to the housing 20 by the second locking portions 2116. When the dust in the collecting chamber 60 needs to be poured out, the dust collecting box 21 can be taken down only by pressing the second buckling part 2116, then the first buckling part 2115 is pressed, the cover plate 211 is pivoted and opened, and finally the dust in the collecting chamber 60 is poured out. After the dust is poured out, the dust box 21 is inserted into the housing 20 from the bottom to the top, and the second locking portion 2116 is locked to the housing 20, so that the dust box 21 is fixed in the dust collecting apparatus.

The utility model discloses in, apron 211 is equipped with the protruding a pair of guide rail 2111 that stretches towards box body 210, filter 212 both sides be equipped with guide 2121 that guide rail 2111 connects, filter 212 passes through guide 2121 sliding insertion apron 211 for filter 212 installs conveniently, when follow-up filter 212 maintenance dismantlement, directly presses down the dismantlement that filter 212 slides along guide rail 2111 and can relax, has avoided dismantling the phenomenon that filter 212 appears spare part and damages.

Claims

1. A dust collecting device is arranged on an electric tool and comprises a shell, a dust collecting box inserted in the shell and a telescopic component supported on the shell; the dust collecting box comprises a box body with an opening facing one end, a cover plate connected with the opening end of the box body and a filter connected with the cover plate; a collecting cavity is defined by the filter and the box body, and an air inlet channel communicated with the collecting cavity is arranged in the telescopic assembly; be equipped with the gas vent on the apron, the filter shelters from the gas vent, it passes through to collect the chamber the filter communicates with each other with the external world, its characterized in that: the cover plate is provided with a pair of guide rails protruding towards the box body, guide parts connected with the guide rails are arranged on two sides of the filter, and the filter is inserted into the cover plate in a sliding mode through the guide parts.

2. The dust collecting apparatus of claim 1, wherein: the guide rail is provided with a first wall protruding towards the box body along the cover plate and a second wall turning inwards along the first wall, the cover plate, the first wall and the second wall are enclosed to form a guide groove, and the guide part protrudes towards the periphery of the filter and is inserted into the guide groove.

3. The dust collecting device according to claim 2, wherein: the filter is provided with a first sealing ring protruding from the surface of the guide part towards one end face of the cover plate, and the first sealing ring surrounds the exhaust port and is attached to the cover plate.

4. A dust collecting device according to claim 3, wherein: and the other end face of the cover plate is provided with a second sealing ring which protrudes outwards around the exhaust port.

5. The dust collecting apparatus of claim 4, wherein: the dust collecting device comprises a connecting part which is connected with the second sealing ring and the electric tool, the connecting part is fixedly arranged in the shell and is connected with the second sealing ring in a pressing mode, an exhaust passage is arranged in the connecting part, and the exhaust passage is communicated with the collecting cavity through a filter.

6. The dust collecting apparatus of claim 5, wherein: the cover plate is provided with an air inlet adjacent to the air outlet, the telescopic assembly is connected to the air inlet, and the air inlet channel is communicated with the collection cavity through the air inlet.

7. The dust collecting device according to claim 6, wherein: the cover plate is connected to one side wall of the box body through a pin so as to be pivoted to be opened and closed.

8. The dust collecting device according to claim 7, wherein: one end of the cover plate opposite to the pin is provided with a first buckling part extending towards the box body, and the first buckling part is clamped on the box body.

9. The dust collecting apparatus of claim 8, wherein: the other two side walls of the cover plate are provided with a pair of second buckling parts extending towards the box body, and the dust collection box is buckled and held on the shell through the second buckling parts.

10. The dust collecting apparatus of claim 9, wherein: the telescopic component comprises a telescopic pipe, a sliding pipe, a switching pipe and a collector, the sliding pipe is slidably supported on the shell, the collector is fixedly arranged at the front end of the sliding pipe, the switching pipe is fixedly arranged in the shell and is in sealing connection with the air inlet, and the telescopic pipe is partially accommodated in the sliding pipe and is connected with the collector and the switching pipe.

11. The dust collecting apparatus of claim 10, wherein: the electric tool comprises a tool body, a motor arranged in the tool body and a dust collecting fan driven by the motor, wherein the dust collecting fan is communicated with an exhaust passage of the dust collecting device.