CN113071542B

CN113071542B - Working cart with built-in dust collection system

Info

Publication number: CN113071542B
Application number: CN202010006009.9A
Authority: CN
Inventors: 陈邦和
Original assignee: Xpole Precision Tools Inc
Current assignee: Xpole Precision Tools Inc
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2023-04-28
Anticipated expiration: 2040-01-03
Also published as: CN113071542A

Abstract

The invention relates to a working trolley with a built-in dust collection system, which comprises a dust collection system and a trolley body. The dust collection system is directly assembled with the trolley body, so that the dust collection system can reduce useless structures, and the dust collection system can be assembled with the trolley body in a simpler structure. Meanwhile, the dust collection system is directly assembled with the trolley body, so that the trolley body breaks a nest of the old use mode, and the trolley body is not only a bearing tool of a dust collector, thereby greatly increasing the use benefit of the trolley body. On the other hand, the invention further enables a dust storage barrel on the dust collection system to have the characteristic of independent disassembly, so that an operator does not need to additionally disassemble other components when replacing the dust storage barrel, thereby being convenient for the operator to operate.

Description

Working cart with built-in dust collection system

Technical Field

The invention relates to a working cart, in particular to a working cart with a built-in dust collection system.

Background

In cutting (cutting), grinding (polishing), polishing (polishing) and other operations of materials such as woodworking, sheet metal, stone countertops, building decoration, glass fiber and the like, tool machines such as cutting tools (cutting tools), grinding machines (grinders), polishing machines (polishers) and the like are often used. For example, when the grinding operation is performed by using a grinding machine, the grinding machine is firstly used from a rotary grinding machine (Rotation grinding machine) with the coarsest grinding particle size, then an eccentric grinding machine (Orbital grinding machine) with the medium grinding is used, and finally a random motion eccentric grinding machine (Random Orbital Sander) with the finest grinding particle size is used, and the thickness of grinding consumables is also from #24, #60, #100, to #1000, #2000, #5000, which are coarsest. In order to respond to different materials of different objects to be polished, the materials used for polishing consumables are different. In this way, the operator is equipped with a plurality of tools and various consumables in the Working area, and a Working cart (Working Trolley) for placing the tools and consumables is a necessary device. Further, when the processing operation is performed, a large amount of dust is raised in the air, so that the health of operators is endangered, and therefore, the existing working trolley is provided with a dust collector and the like, so that the operators can increase the convenience of the work during the processing operation, and can maintain the health of the operators at the same time.

The existing working trolleys can be roughly divided into the following categories according to the structural configuration mode, wherein wheels are directly arranged at the bottom of the dust collector, the dust collector is placed on the working trolleys, and the internal system of the dust collector is directly combined with the working trolleys. First, a working cart of the type in which wheels are directly attached to the bottom of the cleaner is described, such as Mobile Dust Extractor CTL E AC CLEANTEX, mobile VacuumCleaner CTM E and WCR 1000WORK CENTRE from FESTOOL, dust extract 1025L PC 230V from MIRKA and MOBILE 35260 EN from RUPES, which provide the technical teaching of the removability of the cleaner, but which require the removal of the power cord, compressed air tube, dust tube, housing and cleaner one by one to replace the Dust collection tub, so that the cleaner can be opened to replace the Dust collection tub. Furthermore, this type of work trolley is not provided with a work platform, which is inconvenient for the operator to place the machine tool during the work.

On the other hand, the type in which the vacuum cleaner is directly placed on the work cart is shown in Trolley for dust extractor of chinese patent No. CN207786208U, MIRKA, MULTIPURPOSE TROLLEY FOR PROFESSIONAL VACUUN CLEANERS of RUPES, and the like. In view of the foregoing, it has been found that this type of work cart is of the type in which the vacuum cleaner is additionally placed on the work cart, with the vacuum system obviously not being integrated with the work cart. Because the dust collector and the working trolley are respectively provided with the shell and other structures, when the dust collector is taken into the working trolley, only the shell of the working trolley can play a role in protecting the internal device, and the shell of the dust collector cannot function, so that the shell of the dust collector is similar to a dummy shell, and the cost of the working trolley is increased. In addition, when the dust collection barrel is replaced, the dust collection barrel can be taken out only by detaching the dust collector from the working cart and then sequentially detaching the structure on the dust collector, so that the dust collection barrel is inconvenient for operators to replace.

Disclosure of Invention

The invention mainly aims to solve the problems that the existing dust collection system is not completely combined with a working trolley and cannot be independently disassembled to be derived from a dust collection barrel.

The invention provides a working cart with a built-in dust collection system, which comprises a dust collection system and a cart body, wherein the dust collection system comprises a cyclone dust separation device, an exhaust motor, an air pipe connected with the cyclone dust separation device and the exhaust motor, and a dust storage barrel, the cart body is provided with a frame, an assembly space defined by the frame and a bearing plate arranged in the assembly space and connected with the frame, the bearing plate separates the assembly space into a top area and a bottom area, the bearing plate is provided with a perforation, the top area provides the cyclone dust separation device and the exhaust motor, a dust discharge outlet of the cyclone dust separation device is arranged corresponding to the perforation, and the bottom area provides the dust storage barrel, and is hung on one side of the bearing plate facing the bottom area and can be independently taken out from the cart body.

In one embodiment, the air tube is formed by a channel provided in the side of the carrier plate facing the top region.

In one embodiment, the dust collection system includes a power module disposed in the top area or the bottom area and electrically connected to at least the suction motor.

In one embodiment, the cart body has a working platform disposed at a top end of the frame.

In an embodiment, the cart body has a plurality of first external decorative plates respectively disposed corresponding to the top regions.

In one embodiment, at least one of the first external decorative plates and the working platform is provided with a plurality of vent holes.

In one embodiment, one of the first external decorative plates is provided with a power supply socket for plugging an external device.

In one embodiment, the cart body has at least one storage drawer disposed in the bottom region.

In one embodiment, the dust collection system comprises a high efficiency air particulate filter (HEPA) disposed between the cyclonic dust separation device and the suction motor, wherein the high efficiency air particulate filter has a filtration efficiency of 90% or more.

In addition, the invention provides a working cart with a dust collection system, comprising a dust collection system and a cart body, wherein the dust collection system comprises a cyclone dust separation device, an exhaust motor, an air pipe connecting the cyclone dust separation device with the exhaust motor, and a dust storage barrel, the cart body is provided with a frame, an assembly space defined by the frame and a support plate arranged in the assembly space and connected with the frame, the support plate divides the assembly space into a top area and a bottom area, the support plate is provided with an air passing hole communicated with the air pipe and a perforation, the top area is provided with the cyclone dust separation device, a dust discharge outlet of the cyclone dust separation device is arranged corresponding to the perforation, the bottom area is provided with the exhaust motor and the dust storage barrel, the exhaust motor and the dust storage barrel are respectively hung on one side of the support plate facing the bottom area, the exhaust motor corresponds to the air passing hole, and the dust storage barrel corresponds to the perforation and can be independently taken out from the cart body.

In one embodiment, the support plate is provided with the air pipe on one side facing the top area, and the air pipe is respectively communicated with the air suction motor and the air passing hole.

In an embodiment, the cart body has a plurality of first external decorative plates respectively corresponding to the top area and a plurality of second external decorative plates respectively corresponding to the bottom area.

In one embodiment, at least one of the second external decorative plates and the working platform is provided with a plurality of vent holes.

In one embodiment, the cart body has at least one storage drawer disposed in the bottom region and spaced apart from the suction motor.

In one embodiment, the dust collection system comprises a high efficiency air particulate filter (HEPA) in communication with the air duct and in front of the suction motor, the HEPA having a filtration efficiency of 90% or more.

Compared with the prior art, the invention has the following characteristics: the invention breaks through the use habit of the old working cart, so that the dust collection system can be directly assembled in the assembly space. In addition, the dust storage barrel is directly hung on one side of the bearing plate facing the bottom area and can be independently taken out from the trolley body.

Drawings

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

Fig. 2 is a schematic drawing showing a dust bucket according to a first embodiment of the present invention.

Fig. 3 is an exploded view of a portion of the components of a first embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of a first embodiment of the present invention.

Fig. 5 is a schematic airflow diagram in the implementation of the first embodiment of the present invention.

Fig. 6 is a schematic diagram of a unit according to a first embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view of a second embodiment of the present invention.

Symbol description

100,............. Working cart

10,............. Dust collection system

11,............. Cyclone dust separating device

111,............. Air inlet

112,............. Dust outlet

12,............. Exhaust motor

121,............. Electric motor

122,............. Wind barrel

123,............. Wind inlet side

124,............. Auxiliary support rod

13,............. Air pipe

131,............. Air inlet end

132,............. Air outlet end

133,............. Passage

14,............. Dust storage barrel

141,............. Openings

142,............. Diameter

15,........... High efficiency air corpuscle filter screen

16,............. Air duct

17,............. Exhaust motor

171,............. Electric motor

172,............. Wind barrel

174,............. Auxiliary supporting rod

20,............. Cart body

21,............. Frame

211,............. Wheel

212,............. Cart handle

22,............. Assembly space

221,............. Top region

222,............. Bottom region

23,............. Carrier plate

231,............. Perforation

232,............. Air passing hole

24,............. Working platform

25,............. First outer decorative plate

251,............. Vent

252,............. Dust-absorbing pipe base

253,............. Tracheal tube connector

254,............. Power supply socket

255,............. Plaque handle

256,............. Operating knob

257,............. Manifold

258,............. Power switch

26,............. Separator

27,............. Vias

28,............. Hook

29,............. Power supply module

291,............. Working power

30,............. Hook

301,............. Pitch

31,............. Storage drawer

311,............. Drawer handle

32,............. Second external decorative board

321,............. Vent

33,............. Air source inlet

34,............. Air supply outlet

70,............. Dust-to-be-filtered air flow

71.............. Descending cyclone

72.............. Rising swirl flow

73.............. Airflow after dust separation

74.............. High pressure air flow

75.............. Radiating air flow

80,............. Dust

200,............. Hand tool machine

Detailed Description

The detailed description and technical content of the invention are described below with reference to the drawings:

the terms "first" and "second" used herein with respect to components are intended to distinguish between the components and are not intended to limit the order in which the components are ordered. In addition, hereinafter, "top", "bottom", and "bottom" are referred to as,

Spatially relative terms such as "upward" and "downward" are based on the directions depicted in the drawings herein, it being understood that the spatially relative terms may vary as the directions depicted in the drawings vary, for example, the original "top" and "bottom" may vary to the left and right, respectively, once the drawings are traversed.

Referring to fig. 1 to 5, the present invention provides a working cart 100 with a dust collection system, wherein the working cart 100 comprises a dust collection system 10 and a cart body 20, and the dust collection system 10 comprises a cyclone dust separating device 11, an air suction motor 12, an air pipe 13 and a dust storage barrel 14. Specifically, the cyclone dust separating apparatus 11 is connected to the suction motor 12 through the air pipe 13, the cyclone dust separating apparatus 11 has an air inlet 111 connected to the outside, and the cyclone dust separating apparatus 11 is acted by the suction motor 12 when the suction motor 12 is started, so that the air inlet 111 sucks a dust airflow to be filtered 70, and the dust airflow to be filtered 70 is introduced into the dust collecting system 10 for dust separation. In addition, the suction motor 12 used in the present invention is a motor that can be used in a dry and wet environment, so the dust airflow 70 to be filtered extracted by the cyclone dust separating apparatus 11 can be a humid air or an air containing less moisture (commonly called dry air). In one embodiment, the air suction motor 12 includes an electric motor 121 and a wind barrel 122 connected to the electric motor 121, and when the electric motor 121 is started, air is sucked into the wind barrel 122 by a wind inlet side 123, so that the air is converted into a high pressure air flow 74 by the wind barrel 122, and then the high pressure air flow 74 is discharged toward the direction facing the electric motor 121 and simultaneously dissipates heat of the electric motor 121. In addition, the suction motor 12 is stably assembled on the cart body 20, the suction motor 12 includes at least one auxiliary support bar 124 connected to the air tub 122, and each auxiliary support bar 124 is located outside the suction motor 12, thereby fixing the suction motor 12 on the cart body 20. On the other hand, the air pipe 13 has an air inlet end 131 connected to the cyclonic dust separation device 11 and an air outlet end 132 connected to the air inlet side 123 of the suction motor 12, and the air inlet end 131 receives the air flow exhausted from the cyclonic dust separation device 11 and enables the air flow in the air pipe 13 to flow from the air outlet end 132 toward the air inlet side 123 of the suction motor 12, which will be described in detail later. In addition, the dust storage barrel 14 is disposed below the cyclone dust separating apparatus 11, and the dust storage barrel 14 is configured to receive a dust 80 filtered by the cyclone dust separating apparatus 11 from the dust airflow 70 to be filtered.

On the other hand, the cart body 20 of the present invention is provided for the dust collection system 10 to be disposed therein, and the cart body 20 has a frame 21, an assembling space 22 defined by the frame 21, and a carrier plate 23 disposed in the assembling space 22 and connected to the frame 21. The frame 21 includes a plurality of wheels 211 respectively disposed at the bottom and a cart handle 212. The support plate 23 is horizontally disposed in the assembly space 22, so that the support plate 23 divides the assembly space 22 into a top area 221 and a bottom area 222, the top area 221 is provided for the cyclone dust separating device 11 and the suction motor 12 to be disposed thereon, the bottom area 222 is provided for the dust storage barrel 14, and the height of the top area 221 and the height of the bottom area 222 can be adjusted according to the size of the internal device. Further, the carrier plate 23 has a through hole 231, wherein the through hole 231 is disposed corresponding to a dust outlet 112 of the cyclone dust separating device 11 on a side facing the top region 221, and the through hole 231 is disposed corresponding to an opening 141 of the dust storage barrel 14 on a side facing the bottom region 222, i.e. the through hole 231 is used for communicating the cyclone dust separating device 11 with the dust storage barrel 14.

Next, referring back to fig. 3 to 5, an embodiment of the working cart 100 will now be described. It is first assumed that the work cart 100 of the present invention does not initially begin the machining operation, i.e., the suction motor 12 does not begin to operate. When the suction motor 12 is controlled to start operating, the suction motor 12 draws the dust-to-be-filtered air flow 70 containing the dust 80 to the outside through the cyclone dust separating apparatus 11. After the dust airflow 70 to be filtered enters the cyclone dust separating device 11 through the air inlet 111, the dust airflow 70 to be filtered forms a descending cyclone 71 along the inner wall of the cyclone dust separating device 11, and because the pipe diameter of the cyclone dust separating device 11 is gradually reduced, the rotation speed of the descending cyclone 71 is gradually increased in the descending process, and the dust 80 is centrifugally moved to the outer edge of the descending cyclone 71, and then the dust 80 is moved along the inner wall of the cyclone dust separating device 11 along the descending cyclone 71 towards the direction facing the dust storage barrel 14 through the through holes 231. Then, when the descending cyclone 71 is moved to the position in the dust storage barrel 14, the rotational speed of the descending cyclone 71 is reduced due to the pipe diameter of the dust storage barrel 14 being larger than that of the cyclone dust separating apparatus 11, and the dust 80 is centrifugally deposited in the dust storage barrel 14, and the descending cyclone 71 is converted into an ascending cyclone 72 by the air suction motor 12. The rising cyclone 72 is then displaced towards the suction motor 12 to become a relatively clean dust separated air flow 73, and the dust separated air flow 73 enters the air tub 122 of the suction motor 12 along the air pipe 13, and the dust separated air flow 73 is pressurized by the air tub 122 to be converted into the high pressure air flow 74. The high-pressure air flow 74 is guided by the air tub 122, so that the high-pressure air flow 74 flows towards the direction facing the electric motor 121, the high-pressure air flow 74 is discharged out of the air tub 122 to be converted into a heat dissipation air flow 75, and the heat dissipation air flow 75 dissipates heat of the electric motor 121 while discharging the air suction motor 12.

Therefore, compared with the prior art, the invention breaks through the nest socket of the old working cart, namely the dust collection system 10 is directly combined with the cart body 20, so that the dust collection system 10 has a simpler structure. In addition, the dust storage barrel 14 of the present invention has the characteristic of being detachable independently, so that the operator does not need to detach other components when replacing the dust storage barrel 14, thereby facilitating the replacement of the operator. In addition, the working cart 100 of the present invention is implemented with a hand machine tool 200, and the hand machine tool 200 may be an electric hand machine tool (not shown) or a pneumatic hand machine tool (not shown). When the hand tool machine 200 is used as the pneumatic hand tool machine, the working cart 100 may be externally connected with an air pump (not shown), and the air pump is used as a power source of the pneumatic hand tool machine by means of an air source inlet 33 on the cart body 20 and an air supply outlet 34 connected with the pneumatic hand tool machine.

Referring back to fig. 3 to 5, in one embodiment of the present invention, the air pipe 13 is formed by a channel 133 disposed on the side of the support plate 23 facing the top area 221, two ends of the channel 133 are respectively connected to the cyclonic dust separation device 11 and the suction motor 12, and the channel 133 receives the airflow 73 after dust separation discharged from the cyclonic dust separation device 11 and guides the airflow 73 after dust separation to flow toward the suction motor 12. On the other hand, in one embodiment, the dust collection system 10 includes a high efficiency air particulate filter (HEPA) 15 disposed between the cyclonic dust separation device 11 and the suction motor 12, the high efficiency air particulate filter 15 is in communication with the channel 133 and is located in front of the suction motor 12, the high efficiency air particulate filter 15 receives the dust separated air flow 73 from the cyclonic dust separation device 11, and intercepts the fine dust 80 contained in the dust separated air flow 73, so that the dust separated air flow 73 passing through the high efficiency air particulate filter 15 can be cleaner. In one embodiment, the high-efficiency air microparticle filter 15 has a filtration efficiency of 90% or more. Further, the dust collection system 10 may further comprise an air duct 16 connecting the high efficiency air particulate filter 15 and the cyclonic dust separation apparatus 11.

In an embodiment, referring to fig. 2 to 5 again, the cart body 20 has a working platform 24 disposed at the top end of the frame 21 and a plurality of first external decorative plates 25 disposed corresponding to the top area 221 respectively, the working platform 24 provides for the operator to grind thereon, the first external decorative plates 25 are connected to the working platform 24, and the first external decorative plates 25 and the working platform 24 jointly shield the cyclone dust separating device 11 and the air suction motor 12. In one embodiment, at least one of the first exterior trim panels 25 may be provided with at least one trim panel handle 255 for operator operation, the trim panel handle 255 allowing an operator to selectively close or release the top region 221. In addition, at least one of the first external decorative plates 25 may be provided with at least one hinge (not shown) for allowing at least one of the first external decorative plates 25 to pivot and open relative to the cart body 20. In still another aspect, the cart body 20 has a partition 26 disposed in the top area 221 for separating the suction motor 12 from the cyclone dust separating device 11, and an airflow channel 27 formed on the partition 26, at least one of the first external decorative plates 25 and the working platform 24 has a plurality of ventilation holes 251, the ventilation holes 251 are in communication with the airflow channel 27, the ventilation holes 251 allow the heat dissipation airflow 75 discharged from the suction motor 12 to flow into the top area 221 corresponding to the ventilation holes 251 through the airflow channel 27, and then be discharged out of the cart body 20 through the ventilation holes 251. In addition, at least one operation knob 256 for controlling the rotation speed of the suction motor 12 may be further disposed on one of the first exterior trim panels 25.

In another embodiment, the cart body 20 has at least one hook 28 disposed on at least one of the first external decorative plates 25, and the hook 28 is configured to be hung on a dust suction pipe of the hand tool 200. In addition, in another embodiment, one of the first external decorative plates 25 is provided with at least one dust suction pipe base 252, and the dust suction pipe base 252 is provided with an air pipe joint 253 connected with the air inlet 111. In practice, the dust suction pipe base 252 allows the dust airflow 70 to be filtered to flow into the cyclone dust separating apparatus 11 through the air pipe connector 253, and then the dust airflow 70 to be filtered is introduced into the cyclone dust separating apparatus 11 for dust filtering operation. Further, if the dust suction pipe bases 252 are provided in plurality, the air pipe connectors 253 provided on each dust suction pipe base 252 are connected to the cyclone dust separating device 11, and the air pipe connectors 253 are respectively connected to the cyclone dust separating device 11 through a manifold 257.

Referring to fig. 4 to 6, in an embodiment, the dust collection system 10 includes a power supply module 29 electrically connected to at least the suction motor 12, the power supply module 29 may be disposed in the top area 221 or the bottom area 222, specifically, when the power supply module 29 is disposed in the top area 221, the power supply module 29 is assembled on the partition 26, and the power supply module 29 transmits an operating power 291 to the suction motor 12 after being operated, so that the suction motor 12 starts to operate after receiving the operating power 291. When the power supply module 29 is disposed in the bottom area 222, the support plate 23 may be provided with at least one threading hole (not shown) for threading a wire (not shown) of the power supply module 29 from the bottom area 222 toward the top area 221, so as to connect the wire with the suction motor 12. Further, one of the first exterior trim panels 25 is provided with a power switch 258 electrically connected to the power module 29, and the power switch 258 can be used to control the on/off of the power module 29. In one embodiment, one of the first external decorative boards 25 may further be provided with a power socket 254 electrically connected to the power switch 258, and the power socket 254 is controlled by the power switch 258 and provides a plug for an external device (not shown) to supply power to the external device.

In addition, referring to fig. 2 to 4 again, in order to make the dust storage tank 14 hang on the support plate 23, the cart body 20 has two hooks 30 disposed on a side of the support plate 23 facing the bottom region 222, the two hooks 30 are used for hanging the dust storage tank 14 thereon, and a space 301 between the two hooks 30 is set corresponding to the tank diameter 142 of the dust storage tank 14, so that the dust storage tank 14 can be assembled with the two hooks 30 to hang on the support plate 23. In this embodiment, the two hooks 30 enable the dust storage barrel 14 to be placed in the space between the two hooks 30 in a transverse manner, so that the dust storage barrel 14 is assembled with the two hooks 30, for example, when the dust storage barrel 14 is to be taken out from the cart body 20, the dust storage barrel 14 can be easily detached from the cart body 20 only by being moved transversely relative to the two hooks 30. On the other hand, in an embodiment, the cart body 20 has at least one storage drawer 31 disposed in the bottom area 222, the storage drawer 31 is connected to the carrier 23 and disposed corresponding to the dust storage barrel 14, and further, at least one drawer handle 311 may be disposed on the storage drawer 31.

In addition to the foregoing embodiments, the present invention also provides another embodiment of the work cart 100. The basic structure of the working cart 100 of the present embodiment is the same as that of the working cart 100 of the previous embodiment, and the working cart 100 of the present embodiment is different from the working cart 100 of the previous embodiment in the manner in which the suction motor 12 is disposed. However, in order to distinguish between the two embodiments, the suction motor 17 in this embodiment will be identified with different reference numerals.

Referring back to fig. 7, in the present embodiment, the suction motor 17 is not disposed on the support plate 23 facing the top area 221, but is disposed on the bottom area 222. Further, referring to fig. 3 and 5, in addition to the through hole 231, the carrier plate 23 further has an air passing hole 232 communicating with the air pipe 13, and the suction motor 17 is disposed corresponding to the air passing hole 232 so as to communicate with the high efficiency air particulate filter 15. In operation of the cart body 20, the suction motor 17 is similarly acted on to draw the dust to be filtered airflow 70 from the air inlet 111, the dust to be filtered airflow 70 is filtered out of the dust 80 by the cyclone dust separating device 11 and then is converted into the dust separated airflow 73, the dust separated airflow 73 is further introduced into the suction motor 17 through the air pipe 13 and the air passing hole 232, the dust separated airflow 73 is pressurized after entering the suction motor 17, and finally is converted into the heat dissipation airflow 75 and is discharged from the air barrel 172 towards the direction facing the electric motor 171.

In addition, in this embodiment, the power module 29 is electrically connected to the suction motor 17, and the power module 29 may be disposed in the top area 221 or the bottom area 222. By way of further example, the power module 29 may be disposed on a side of the carrier plate 23 facing the bottom region 222. On the other hand, referring back to fig. 7, in one embodiment, the cart body 20 further includes a plurality of second exterior panels 32 corresponding to the bottom region 222 in addition to the first exterior panels 25 corresponding to the top region 221. The second exterior decoration plates 32 do not cover the dust storage barrel 14 but only cover the air suction motor 17, so that the dust storage barrel 14 is exposed to the outside for convenient taking out. Further, in one embodiment, at least one of the second external decoration plates 32 or the working platform 24 is provided with a plurality of ventilation holes 321, and the ventilation holes 321 allow the air exhausted by the air suction motor 17 to flow out of the cart body 20. In addition, in the present embodiment, the storage drawer 31 is also disposed in the bottom region 222. Specifically, the placement drawer 31 is positioned below the suction motor 17 and is spaced apart from the suction motor 17.

Claims

1. A work cart with a built-in dust collection system, comprising:

a dust collection system comprising a cyclone dust separating device, an exhaust motor, an air pipe connecting the cyclone dust separating device and the exhaust motor, and a dust storage barrel; and

the cart body is provided with a frame, an assembling space defined by the frame, a bearing plate arranged in the assembling space and connected with the frame, and a working platform arranged at the top end of the frame, wherein the bearing plate separates the assembling space into a top area and a bottom area, the bearing plate is provided with a perforation, the top area is provided with a dust suction pipe connecting seat connected with a dust suction pipe of a hand tool machine, a dust discharge outlet of the dust suction pipe separating device is arranged corresponding to the perforation, the bottom area is provided with a dust storage barrel, and the dust storage barrel is hung on one side of the bearing plate facing the bottom area and can be independently taken out from the cart body.

2. The work cart of claim 1, wherein the air duct is formed by a channel provided in a side of the carrier plate facing the top area.

3. The cart of claim 2, wherein the vacuum system comprises a power module disposed in the top area or the bottom area and electrically connected to at least the suction motor.

4. The work cart of claim 1, wherein the cart body has a plurality of first exterior panels disposed respectively corresponding to the top regions.

5. The work cart of claim 4, wherein at least one of the first exterior panels and the work platform is provided with a plurality of ventilation holes.

6. The work cart of claim 5, wherein one of the first exterior panels is provided with a power socket for plugging an external device.

7. The work cart of claim 1, wherein the cart body has at least one storage drawer disposed in the bottom region.

8. The cart of claim 1, wherein the dust collection system comprises a high-efficiency air particulate filter disposed between the cyclonic dust separator and the suction motor, the high-efficiency air particulate filter having a filtration efficiency of 90% or more.

9. A work cart with a built-in dust collection system, comprising:

the cart body is provided with a cart frame, an assembling space defined by the cart frame, a bearing plate arranged in the assembling space and connected with the cart frame, and a working platform arranged at the top end of the cart frame, wherein the bearing plate is divided into a top area and a bottom area by the assembling space, the bearing plate is provided with an air passing hole communicated with the air pipe and a perforation, the top area is provided with a dust collecting pipe connecting seat connected with a dust collecting pipe of a hand tool, a dust discharging outlet of the cyclone dust separating device is arranged corresponding to the perforation, the bottom area is provided with an air suction motor and a dust storage barrel, the air suction motor and the dust storage barrel are respectively hung on one side of the bearing plate facing the bottom area, the air suction motor corresponds to the air passing hole, and the dust storage barrel corresponds to the perforation and can be independently taken out from the cart body.

10. The work cart of claim 9, wherein the carrier plate is provided with the air pipe on a side facing the top area, the air pipe being respectively communicated with the suction motor and the air passing hole.

11. The cart of claim 9, wherein the vacuum system comprises a power module disposed in the top area or the bottom area and electrically connected to at least the suction motor.

12. The work cart of claim 9, wherein the cart body has a plurality of first exterior panels respectively corresponding to the top region and a plurality of second exterior panels respectively corresponding to the bottom region.

13. The work cart of claim 12, wherein at least one of the second exterior panels and the work platform is provided with a plurality of ventilation holes.

14. The work cart of claim 13, wherein one of the first exterior panels is provided with a power socket for plugging an external device.

15. The cart of claim 9, wherein the cart body has at least one storage drawer disposed in the bottom region and spaced apart from the suction motor.

16. The cart of claim 9, wherein the suction system comprises a high efficiency air particulate filter having a filter efficiency of 90% or more in communication with the air duct and positioned in front of the suction motor.