TWI731480B - In-line two stage dust collector - Google Patents

Abstract

An in-line two stage dust collector comprising a base unit, an air extracting unit, a filter unit and a dust collecting unit, the air extracting unit having a blower body, the filter unit comprising a filter body and a coarse particle disposed in the filter body a dust filter cartridge and a fine particle dust filter disposed in the coarse particle dust filter cartridge. The fine particle dust filter core is coaxially sleeved in the coarse particle dust filter cylinder, and the dust collecting air can be filtered by the fine particle dust filter to perform secondary dust collection. By the combination of the above structures, in addition to the secondary dust collecting effect, the machine space can be saved and convenient use.

Description

In-line secondary dust collector

The invention relates to a dust collector, in particular to an in-line secondary dust collector with more than one in-line way to install each machine body, thereby saving machine space and having a convenient use effect.

Referring to Figure 1, there is a conventional primary dust collector 10, which mainly includes a base 11, an exhaust fan body 12 arranged on the base 11, a filter cartridge 13 erected on the side of the exhaust fan body 12, and a filter cartridge 13 connected to the filter. The dust bag 14 below the body 13 is provided with an air inlet 121 that can introduce outside air on the outside of the exhaust fan body 12, and an air duct 122 connected to the filter cylinder 13 is connected to the side, and the exhaust fan body 12 is provided with an inside A blower that can generate suction (not shown). After the blower is started, the outside air can be sucked into the filter cartridge 13 through the air inlet 121. The filter body 13 is a filter material with a predetermined pore size on the surface. When the outside air enters the filter cartridge 13 After that, the impurities and dust in the air are filtered by the filter cartridge 13, and will naturally fall downward into the dust bag 14, and the filtered air will directly diffuse to the outside through the pores of the filter cartridge 13, thereby achieving One-time dust collection effect; although the structure of the dust collector 10 is simple, the machine occupies a small space, and the operation is very convenient, but the dust collector 10 can only filter out the coarser particles in the air according to the pore size of the filter cylinder 13 Dust, and the finer particles in the air will still be emitted through the filter body 13, so the overall filtering effect is not good. If the user uses the filter cartridge 13 filter material with smaller pores, the dust collector 10 will be used After a period of time, the filter cartridge 13 will block the pores due to large and small particles of dust, which will reduce the filtering efficiency. The user must regularly clean the dust attached to the filter cartridge 13, which will cause trouble in use.

Therefore, some manufacturers have improved the dust collector 10 for the above-mentioned primary dust collection action to produce a dust collector with a secondary dust collection action. Referring to Figure 2, the conventional secondary dust collector 20 mainly includes a base 21 and a base 21. The filter body 22 on the 21, an air duct 23 erected and fixed inside the filter body 22, a blower 24 arranged above the filter body 22, a first dust collecting cylinder 25 arranged below the filter body 22, a A filter cartridge 26 arranged at the side of the base 21 and connected to the filter body 22, and a second dust collecting cartridge 27 arranged below the filter cartridge 26, a cavity 221 is formed in the interior of the filter body 22, The outside is provided with an air inlet channel 222 that can introduce outside air into the chamber 221, and at the lower end is provided a cone 223 communicating with the chamber 221 and facing directly above the first dust collecting cylinder 25. The guide The air duct 23 is a hollow upright cylinder, and its outer peripheral wall is just right at the position of the air inlet passage 222. After the blower 24 is operated, a suction force will be generated to allow the outside air to be sucked into the chamber 221 through the air inlet passage 222. When it hits the outer wall of the air duct 23, it will turn into the cone part 223. When the air is in contact with the walls of the air duct 23 and the cone part 223, the coarser particles of dust will naturally fall to the first set due to its own weight. In the dust cylinder 25, a dust collection is achieved. The air after a dust collection is attracted by the blower 24 and will continue to pass upward through the air guide tube 23 and be pushed into the filter cylinder 26. The filter cylinder 26 is It is composed of a filter material with tiny pores on the surface. The finer particles in the air will fall into the second dust collection tube 27 for collection after being filtered by the filter tube 26, thereby achieving secondary dust collection. After the second dust collection action, the secondary dust collector 20 can filter out the coarse and fine particles in the air, which can effectively improve the overall filtering effect; the structure of the above-mentioned secondary dust collector 20 can indeed make the air quality more filterable and clean. However, it still has its shortcomings. The conventional secondary dust collector 20 is a combination of the filter body 22 with the first dust collection tube 25, and the filter tube 26 with the second dust collection tube 27. The two filter mechanisms are separate As a result, the entire secondary dust collector 20 needs to take up a considerable amount of space and area. For a plant environment with limited space, it is a big problem to accommodate the secondary dust collector 20, and because of the size of the machine If the amount is too large, it is quite troublesome to transport or assemble, and the cleaning work of the first and second dust collecting cylinders 25 and 27 also need to be handled separately, which is time-consuming and laborious for the user.

In view of this, how to solve the problem of the conventional secondary dust collector 20 that the machine is too large and the usability is not good is the primary problem to be solved by the present invention.

One of the objectives of the present invention is to provide an in-line secondary dust collector, which installs the suction unit, the filter unit and the dust collection unit in an up-and-down in-line manner, so that the volume of the whole machine is minimized, and the present invention is in a narrow space. It can also be applied, and it has its convenience in installation, transportation, operation and use.

The second object of the present invention is to provide an in-line secondary dust collector, which utilizes a coarse particle dust filter cartridge and a fine particle dust filter element coaxially arranged inside the filter body, so that the dust collection action of coarse and fine particle dust can be in a single filter body All are completed, and the coarse and fine particles of dust can also be collectively processed by a single dust collector, which can save the cost of the machine body and achieve the effect of convenient cleaning and use.

The third object of the present invention is to provide an in-line secondary dust collector, which utilizes a filter element cleaning mechanism provided above the filter body, and the user can directly and manually operate the fine particle dust filter element to pat and clean the fine particle dust filter element at the front of the machine. This achieves the effect of facilitating cleaning of the filter element.

The fourth object of the present invention is to provide an in-line secondary dust collector, which utilizes a first quick-release mechanism at the middle of the column to quickly and conveniently disassemble and install the filter unit, thereby facilitating the installation of the fine particle dust filter element Replacement job.

The fifth object of the present invention is to provide an in-line secondary dust collector, which utilizes a second quick release mechanism at a position below the column to quickly and conveniently disassemble and install the dust collection unit, thereby facilitating the installation of the dust bag Replacement job.

In order to achieve the foregoing objective, the present invention provides an in-line secondary dust collector, which mainly includes a base unit, an exhaust unit, a filter unit, and a dust collection unit, wherein: the base unit includes a base and two erected on the base The uprights on the left and right sides; the exhaust unit includes an exhauster body arranged at the upper end of the two uprights, and a blower arranged in the exhauster body. The bottom of the exhauster body is provided with a suction channel at the position corresponding to the blower, Starting the operation of the blower can cause the suction channel to generate a negative pressure suction; the filter unit includes a filter body arranged between the two columns and directly below the suction fan body, and a coarse particle dust filter cartridge arranged in the filter body , And a fine particle dust filter element arranged in the coarse particle dust filter cartridge, the filter body is hollowed with a first chamber formed inside, and an air inlet communicating with the first chamber for introducing outside air is provided on the outside, the The coarse particle dust filter cartridge is erected and fixed in the filter body, and its lower end is provided with a cylindrical part extending into the first chamber. A second chamber is formed in the hollow of the cylindrical part, and a hole is provided on the outer peripheral surface of the cylindrical part. Many filter holes penetrate into the second chamber. A hole is recessed at the center of the upper end of the coarse particle dust filter cartridge. The upper part of the hole is connected with the suction channel of the exhaust fan body. The fine particle dust filter element is coaxial It is sleeved in the seat hole, the outer periphery of which is covered with a filter material, and a core hole is formed in the hollow. The lower part of the core hole is connected with the second chamber; the dust collection unit includes a dust collecting unit which is arranged between two uprights and is opposite to The dust collecting cylinder at the position below the filter body is recessed with a dust collecting chamber inside the dust collecting cylinder corresponding to the lower position of the first and second chambers.

Preferably, the filter unit further includes a filter element cleaning mechanism having a ring seat arranged at the upper end of the filter body, a shaft arranged at the center of the ring seat and extending downward into the hole of the fine particle dust filter element The shaft, a clean paddle fixed at the bottom of the shaft and in contact with the inner surface of the filter material, a set of one-way bearings arranged at the upper end of the shaft, and a set of one-way bearings combined on the one-way bearings and extending laterally The manual lever on the outside of the ring seat.

Preferably, the ring seat is a ring-shaped seat body, and a through hole in the shape of a 3/4 arc angle is opened through the inside of the ring seat, and the through hole is connected with the suction channel and the seat hole up and down, respectively. The inner part of the ring seat is additionally provided with a solid part in the shape of a 1/4 arc angle. The central corner end of the solid part is provided with a shaft hole for the shaft to pass through, and the outer periphery of the solid part is provided with a The manual shift lever is extended to make a slot that swings at an angle greater than 45 degrees.

Preferably, the filter body is fixedly connected to the inner wall of the first chamber with a deflector in a spiral direction, and the filter holes on the cylindrical part of the coarse particle dust filter cylinder are distributed in a spiral manner according to the direction of the deflector. shape.

Preferably, the coarse particle dust filter cartridge is further provided with a flared oblique cone portion at the lower end of the cylindrical portion.

Preferably, the coarse particle dust filter cartridge is provided with an intermediate through hole connected to the second chamber at the center of the bottom of the seat hole.

Preferably, the coarse particle dust filter cartridge is protrudingly provided at the bottom of the seat hole with a positioning flange which can be used as an airtight sleeve for the bottom end of the fine particle dust filter element.

Preferably, the fine particle dust filter element includes a filter element frame and a fixed plate, the filter material is arranged around the outer periphery of the filter element frame, so that the fine particle dust filter element forms a hollow core hole inside, and the fixed disc is locked to the filter element frame At the upper end, the upper end of the core hole can be made closed, and the fine particle dust filter element is locked and fixed on the coarse particle dust filter cartridge by the fixing disc.

Preferably, two ears are provided on the left and right sides of the filter body, and the base unit further includes a first quick-release mechanism. The first quick-release mechanism has two uprights fixed on the inner side of the two uprights corresponding to the height of the filter body. The first slide rail at the position, the two first slide sleeves which are respectively sleeved on the first slide rail and can be moved up and down, and the two are respectively connected to the inner side of the first slide sleeve to embed the two ears of the filter body The first convex The shaft and two are respectively sleeved on the first sliding rail and can provide the first elastic member with resilience to the first sliding sleeve, and a first elastic member which extends outward to the outside of the filter body and is pivotally connected with the first sliding sleeve on both sides. A hand pressing rod and two first connecting rods connected between the first slide rail and the first hand pressing rod.

Preferably, two ears are provided on the left and right sides of the dust collecting cylinder, the base unit further includes a second quick release mechanism, and the second quick release mechanism has two uprights fixed inside the two uprights corresponding to the dust collecting The second slide rail at the height of the drum, two second slide sleeves which are respectively sleeved on the second slide rail and can move up and down, and the two are respectively connected to the inner side of the second slide sleeve to have two ears for the dust collecting tube The second convex shaft which is embedded as a part, two second elastic members which are respectively sleeved on the second slide rail and can provide resilience to the second slide sleeve, and one extends outward to the outside of the dust collecting tube, and the two sides are respectively connected to the second The sliding sleeve is pivotally connected with a second hand pressing rod, and two second connecting rods connected between the second sliding rail and the second hand pressing rod.

It is not difficult to obtain an in-depth understanding of the above-mentioned objects and advantages of the present invention from the detailed description of the selected embodiments and the accompanying drawings.

Conventional components

10: One-time dust collector

11: Base

12: Exhaust fan body

121: air inlet

122: air duct

13: filter cartridge

14: Dust bag

20: Secondary dust collector

21: Pedestal

22: Filter body

221: Room

222: intake channel

223: Cone Bucket

23: Air duct

24: Blower

25: The first dust collector

26: filter cartridge

27: The second dust collector

Elements of the invention

30: base unit

31: Base

311: Wheel

32: Column

321: The first fixed seat

322: second fixed seat

33: The first quick release mechanism

331: first slide

332: first sliding sleeve

333: The first convex shaft

334: The first elastic part

335: First-hand pressure bar

336: first link

34: The second quick release mechanism

341: second slide

342: second sliding sleeve

343: second convex shaft

344: second elastic part

345: second hand pressure bar

346: second link

40: Ventilation unit

41: Exhaust fan body

411: Vent

412: Inhalation Channel

42: Blower

50: filter unit

51: filter body

511: first chamber

512: Air inlet

513: Ear

514: Deflector

52: Coarse particle dust filter cartridge

521: Flange

522: Cylinder

523: The Second Chamber

524: filter hole group

525: oblique cone

526: Seat Hole

527: middle through hole

528: positioning flange

53: Fine particle dust filter element

531: filter frame

532: filter

533: fixed disk

534: Core Hole

535: rib

54: Filter element cleaning mechanism

541: ring seat

5411: Through Hole

5412: Entity Department

5413: Shaft hole

5414: Slotting

542: Axle

543: Clean Pick

544: One-way bearing

545: Manual lever

60: Dust collection unit

61: Dust Collector

611: Ear

612: Wheel

613: Dust Room

62: Dust bag

63: ring frame

Figure 1 is a schematic structural diagram of a conventional primary dust collector; Figure 2 is a combined cross-sectional view of a conventional secondary dust collector; Figure 3 is a combined perspective view of a preferred embodiment of the present invention, explaining that the present invention is mainly composed of a base unit, A suction unit, a filter unit, and a dust collection unit; Figure 4 is an exploded perspective view of the above-mentioned embodiment of the present invention, illustrating that the base unit includes a base, two columns, a first quick release mechanism and a second quick release Demolition agency Figure 5 is an exploded perspective view of the above embodiment of the present invention, illustrating the disassembled state of the first and second quick release mechanisms; Figure 6 is a combined cross-sectional view of the above embodiment of the present invention, illustrating the exhaust unit, filter unit and dust collection of the present invention The unit is arranged in an up-and-down in-line manner; Figure 7 is an exploded perspective view of the above-mentioned embodiment of the present invention, illustrating that the filter unit includes a filter body, a coarse particle dust filter cartridge, a fine particle dust filter element and a filter element cleaning mechanism; Figure 8 is an exploded perspective view of Figure 7 from another perspective, illustrating the shape of the bottom end of the coarse particle dust filter cartridge and the fine particle dust filter element, as well as an inhalation channel at the bottom of the exhaust unit; Figure 9 is this The combined cross-sectional view of the above-mentioned embodiment of the present invention illustrates the internal configuration of the combined exhaust unit, filter unit and dust collection unit; Figure 10 is an enlarged cross-sectional view of the inside of the filter unit of the above-mentioned embodiment of the present invention, illustrating that the bottom end of the fine particle dust filter element is airtight It fits inside the coarse particle dust filter cartridge; Figure 11 is a combined cross-sectional view of Figure 9 along line 11-11, illustrating that the filter element cleaning mechanism has a shaft and a manual dial that can swing back and forth to drive the shaft to rotate. Figure 12 is a combined cross-sectional view of Figure 9 along line 12-12, explaining that the filter element cleaning mechanism has a cleaning paddle set on the shaft, and rotating the shaft can drive the cleaning paddle to the fine particle dust filter element The action of flapping and cleaning the surface of the layer; Figure 13 is an action diagram of the above-mentioned embodiment of the present invention, which illustrates that the filter body can introduce outside air into it, collect the dust once through the coarse particle dust filter cartridge, and then enter the fine particle dust filter element. The second dust collection is carried out in the interior, and finally the filtered air is discharged by the exhaust unit; Figure 14 is a schematic diagram of the combination of the above-mentioned embodiment of the present invention, and illustrates that the filter unit is supported by the first quick-release mechanism as a fitting support, and the The dust collection unit is supported by the second quick release mechanism; Figure 15 is a schematic diagram of the combination of the above-mentioned embodiment of the present invention, illustrating that the second quick release mechanism can quickly separate the dust collection unit from the base unit and the filter unit; and Figure 16 is a schematic diagram of the combination of the above-mentioned embodiment of the present invention , To explain the situation that the filter unit and the exhaust unit can be separated quickly by operating the first quick-release mechanism.

Referring to Figures 3 and 4, in a preferred embodiment of the in-line secondary dust collector of the present invention, it mainly includes a base unit 30, a suction unit 40, a filter unit 50 and a dust collection unit 60. Next, the composition structure and combination space type of the above-mentioned units will be described in detail later.

The base unit 30 includes a base 31, two uprights 32 erected on the left and right sides of the base 31, a first quick release mechanism 33 arranged at the middle position of the two uprights 32, and a first quick release mechanism 33 arranged at a position below the two uprights 32. The second quick release mechanism 34 at the place, please refer to Figure 5 and Figure 6 at the same time, the base 31 is a slightly ㄇ-shaped seat body, and its bottom is provided with several rollers 311, which can be easily moved by the user. The machine; the column 32 is a straight beam with a predetermined height, the inner side of each column 32 is provided with two sets of first fixing seats 321 at the upper position, and two sets of second fixing seats 322 at the lower position The first quick release mechanism 33 includes two first slide rails 331 set upright on the inner side of the two uprights 32, two first slide sleeves 332 respectively sleeved on the first slide rail 331, and two first slide sleeves 332 respectively connected to the first The first protruding shafts 333 and the two first convex shafts 333 inside the sliding sleeve 332 are respectively sleeved on the first sliding rail 331 and can provide elastic recovery force to the first sliding sleeve 332, and one is opposite to the first sliding sleeve 332. A first hand pressing rod 335 that is connected in series and extends outward to the outside of the filter unit 50, and two first connecting rods 336 connected between the first sliding rail 331 and the first hand pressing rod 335, the first sliding rail 331 The upper and lower ends are respectively sleeved on the first fixing seat 321 and locked and fixed, and their positions correspond to the height position of the filter unit 50. The first sliding sleeve 332 is sleeved on the first sliding rail 331 along the first The sliding rail 331 moves up and down, the first convex shaft 333 is locked on the first sliding sleeve 332 to form a linkage, and the first convex shafts 333 on the left and right sides can be aligned downward. The two ears 513 of the filter body 51 are embedded and supported. The first hand pressing rod 335 is a slightly ㄇ-shaped rod body, and its left and right ends are pivotally connected to the first sliding sleeves 332 on the two sides, and the first connecting rod 335 is pivotally connected to the two first sliding sleeves 332. The two ends of the rod 336 are respectively pivotally connected to the first slide rail 331 and the first hand pressing rod 335, so that when the first hand pressing rod 335 is pulled up and down, the first sliding sleeve 332 can be moved up and down in a lever manner with less effort. The second quick release mechanism 34 has two second slide rails 341 erected on the inner side of the two uprights 32, two second slide sleeves 342 respectively sleeved on the second slide rails 341, and two second slides respectively connected to the second slide The second protruding shafts 343 and two on the inner side of the sleeve 342 are respectively sleeved on the second sliding rail 341, and the second elastic member 344 that can provide the second sliding sleeve 342 with a resilience force, one is connected with the second sliding sleeve 342 And extend outward to the second hand pressing rod 345 at the outside of the dust collection unit 60, and two second connecting rods 346 connected between the second sliding rail 341 and the second hand pressing rod 345, the second sliding rail 341 is up and down The two ends are respectively sleeved on the second fixing seat 322 and locked and fixed, and their positions are just corresponding to the height position of the dust collection unit 60. The second sliding sleeve 342 is sleeved on the second sliding rail 341 and can follow the second sliding rail 341. The sliding rail 341 moves up and down, the second convex shaft 343 is locked on the second sliding sleeve 342 to form a linkage, and the second convex shafts 343 on the left and right sides can just be inserted into the two ears 611 of the following dust collecting cylinder 61 Support, the second hand pressing lever 345 is a slightly ㄇ-shaped lever body, the middle section of its left and right sides are respectively pivotally connected with the second sliding sleeves 342 on the two sides, and the two ends of the second connecting rod 346 are respectively pivotally connected to the second The sliding rail 341 and the second hand pressing rod 345 are provided so that when the second hand pressing rod 345 is pushed up and down, the second sliding sleeve 342 can be driven to move up and down in a lever manner with less effort.

Referring to Figures 8 and 9 at the same time, the exhaust unit 40 includes an exhaust fan body 41 arranged at the upper end of the two uprights 32, and a blower 42 arranged in the exhaust fan body 41. The top hole of the exhaust fan body 41 is provided with a plurality of There are two ventilation holes 411, and a suction channel 412 is penetrated at the bottom corresponding to the position of the blower 42. Starting the operation of the blower 42 can cause the suction channel 412 to generate a negative pressure suction.

Referring to Figures 7 to 10, the filter unit 50 includes a filter body 51 arranged between the two uprights 32 and directly below the exhaust fan body 41, and a coarse particle dust arranged in the filter body 51 The filter cartridge 52, a fine particle dust filter element 53 arranged in the coarse particle dust filter cartridge 52, and a filter element cleaning mechanism 54 arranged at the upper end of the filter body 51, wherein a first chamber is formed in the hollow of the filter body 51 511, an air inlet 512 connected to the first chamber 511 for introducing outside air is provided on the exterior, and two ears 513 are provided on the left and right sides of the exterior, and the two ears 513 can be used for the first quick release mechanism The first convex shaft 333 of 33 is embedded to support the entire filter body 51. The filter body 51 is fixedly connected to the inner wall of the first chamber 511 with a spiral deflector 514. The deflector 514 can The air sucked into the first chamber 511 is brought into contact along the outer peripheral wall of the coarse particle dust filter cartridge 52 in a spiral direction; the coarse particle dust filter cartridge 52 is a cylindrical body with two layers of inner and outer layers, and a convex surface is provided at the upper end. Flange 521, the flange 521 can be erected and fixed at the top end of the filter body 51, and the coarse particle dust filter cartridge 52 has a cylindrical portion 522 extending downwardly from its outer periphery, and the cylindrical portion 522 is coaxially sleeved in the first chamber 511 There is a certain distance between its outer periphery and the inner wall of the filter body 51. The cylindrical portion 522 is hollowed to form a second chamber 523. The outer peripheral surface of the cylindrical portion 522 at the lower end is provided with a plurality of holes that penetrate to The filter hole groups 524 in the second chamber 523 are spirally distributed according to the direction of the deflector 514, so that the air entering the first chamber 511 is in contact with the outer peripheral wall of the cylindrical portion 522 During the process, the coarse particles of dust will be filtered by the filter hole group 524, and fall down due to its own weight. The lower end of the cylindrical portion 522 is provided with a flared beveled cone 525, which is a beveled cone. The part 525 prevents the coarse dust falling from being sucked into the second chamber 523. The center of the upper end of the coarse dust filter cartridge 52 is recessed with a seat hole 526 communicating with the suction channel 412, and is located at the bottom of the seat hole 526 A middle through hole 527 connected to the second chamber 523 is opened in the center, and a ring-shaped positioning flange 528 is protruded on the bottom wall of the seat hole 526; the fine particle dust filter element 53 has a filter element frame 531 , A filter material 532 surrounding the outer circumference of the filter element frame 531, and a fixed plate 533 locked at the upper end of the filter element frame 531, the filter element frame 531 is coaxially sleeved into the seat hole 526 of the coarse particle dust filter cartridge 52, and The bottom end can be quickly airtightly fitted with the positioning flange 528, and the top end is locked and fixed to the flange 521 of the coarse particle dust filter cartridge 52 through the fixing plate 533. Above, the filter material 532 adopts a high-efficiency particulate air filter (HEPA), which can effectively filter out fine dust in the air. The fine particle dust filter element 53 is surrounded by the filter material 532 to form a hollow core hole 534. The core hole 534 forms a communication shape with the second chamber 523 through the middle through hole 527. In addition, a rib portion 535 is transversely provided at the center of the bottom end of the filter element frame 531, and the fixed plate 533 is locked on the upper end of the filter element frame 531 to be opposite to each other. The upper end of the core hole 534 is made closed, so that the air entering the core hole 534 can only enter the seat hole 526 by penetrating the filter material 532; at the same time, referring to Figures 11 and 12, the filter element cleaning mechanism 54 has a The ring seat 541 at the upper end of the filter body 51, a shaft 542 located in the center of the ring seat 541 and extending downward to the core hole 534 of the fine particle dust filter element 53, and a shaft 542 fixedly connected under the shaft 542 and connected to the filter material The cleaning paddle 543 in contact with the inner surface of the 532, a set of one-way bearings 544 arranged at the upper end of the shaft 542, and a set of manual shifting rods 545 fitted on the one-way bearing 544 and extending laterally from the outer side of the ring seat 541 The ring seat 541 is a ring-shaped seat body, and a through hole 5411 with a slightly 3/4 rounded shape is opened inside the ring seat 541. The through hole 5411 is mutually formed with the suction channel 412 and the seat hole 526 up and down. The ring seat 541 is provided with a solid part 5412 having a slightly 1/4 rounded shape inside the ring seat 541. The central corner end of the solid part 5412 is provided with a shaft hole 5413 through which the shaft 542 can pass. The outer periphery of the portion 5412 is provided with a slot 5414 for the manual shift lever 545 to extend and swing at an angle greater than 45 degrees. The lower end of the shaft 542 extends to the rib portion 535 of the fine particle dust filter element 53 and is formed as a shaft connection. The swinging manual lever 545 can drive the shaft 542 and the cleaning paddle 543 to rotate at the same time. Since the cleaning paddle 543 is in contact with the surface of the filter material 532, rotating the cleaning paddle 543 can remove the dust attached to the inner surface of the filter material 532. The manual shift lever 545 can drive the shaft 542 to rotate to a certain angle when the manual shift lever 545 rotates in the reverse direction. The one-way bearing 544 will not drive the shaft 542 to rotate when the manual shift lever 545 rotates in the reverse direction. After several times of forward and reverse rotation, the cleaning paddle 543 can complete a 360-degree round of cleaning the inner surface of the filter material 532.

Referring to Figures 4 and 9, the dust collection unit 60 includes a dust collection tube 61 arranged between the two uprights 32 and directly below the filter body 51. The dust collection tube 61 is provided on the left and right sides. There are two ears 611, the bottom of which is equipped with several rollers 612 to facilitate the transportation and movement of the entire dust collection tube 61 on the ground. The inside of the dust collection tube 61 corresponds to the position below the first and second chambers 511 and 523. A dust collecting chamber 613 for collecting coarse and fine particles of dust is recessed. In order to facilitate cleaning and collecting dust, a dust collecting bag 62 can be inserted into the dust collecting chamber 613. A ring frame 63 can be inserted into the dust collecting bag 62. The dust bag 62 can be expanded quickly so that the mouth of the dust bag 62 is just below the first and second compartments 511 and 523, so that the coarse and fine particles of dust can be removed smoothly Drop into the dust bag 62 for collection.

The above is the overall composition structure and combined space type of the in-line secondary dust collector of the present invention, and then the action of the present invention and the technical problem to be solved are described in detail later.

Referring to Figures 12 and 13, when the user wants to use the present invention, the blower 42 is first activated to generate suction. The outside air will be sucked into the first chamber 511 through the air inlet 512 of the filter body 51, using the spiral shape The air will follow the spiral path to the lower end of the coarse dust filter cartridge 52. The coarser dust particles in the air will fall into contact with the outer wall of the cylinder 522 due to their own weight. In the dust collecting cylinder 61 below, the filter hole group 524 on the cylindrical part 522 will first filter out the coarser particles of dust, and the air sucked into the first chamber 511 will pass through the filter hole group 524 first. Through the second filtration, a dust collection action is completed, and the filtered air enters the second chamber 523 through the filter hole group 524, and then reaches the core hole 534 inside the fine particle dust filter element 53 from the second chamber 523. Time air will filter out finer particles of dust through the filter material 532, and the fine particles of dust will fall into the dust collecting cylinder 61 below through the second chamber 523, thereby completing the secondary dust collection action. The dusted air will pass through the through hole 5411 of the ring seat 541 upward from the seat hole 526, enter the suction channel 412 of the exhaust fan body 41, and finally be discharged from the ventilation hole 411 of the exhaust fan body 41. At this point, all the filter collections are completed. Dust action.

Referring to Figure 14, in the combined state, the filter body 51 of the filter unit 50 is supported by the first quick-release mechanism 33. At this time, the first hand lever 335 of the first quick-release mechanism 33 is in a pressed state. The first convex shaft 333 will push upward the filter body 51 and the lower end of the exhaust unit 40 to be combined. The dust collection tube 61 of the dust collection unit 60 is supported by the second quick release mechanism 34, and the second quick release connection mechanism 34 The second hand pressing lever 345 is in a downward pressing state, and the second convex shaft 343 pushes the dust collecting tube 61 upward to be combined with the lower end of the filter body 51.

Referring to Figure 15, when the user wants to replace the dust bag 62 in the dust collecting cylinder 61, firstly, he only needs to pull up the second hand lever 345 of the second quick release mechanism 34, and the second sliding sleeve 342 is pushed downward by the second elastic member 344, which will drive the second convex shaft 343 to move downward. The downward movement of the second convex shaft 343 will cause the entire dust collecting cylinder 61 and the filter body 51 to separate from each other, when the dust collecting cylinder 61 After the bottom roller 612 touches the ground, the entire dust collecting cylinder 61 can be moved away from the base 31, and the user can quickly take out the dust bag 62 in the dust collecting cylinder 61 to facilitate the replacement operation.

Referring to Figure 16, when the user wants to replace the fine particle dust filter element 53 in the filter body 51, first, the dust collecting cylinder 61 and the base 31 should be separated first, and then the user only needs to pull upwards The first hand lever 335 of the first quick release mechanism 33, the first sliding sleeve 332 is pushed down by the first elastic member 334, and will drive the first convex shaft 333 to move downward, and the first convex shaft 333 will move downward. The filter body 51 and the exhaust fan body 41 are separated from each other, at this time, the entire filter unit 50 can be separated from the column 32, and then the user can replace the filter element inside the filter unit 50.

To sum up, the in-line secondary dust collector of the present invention is mainly to solve the problem of excessively large volume of the conventional secondary dust collector 20, which causes space occupation and inconvenience in operation and use. The technical means used in the present invention is to combine the exhaust unit 40 and filter The unit 50 and the dust collection unit 60 are installed and combined in an up-and-down in-line manner, which can minimize the volume of the entire machine, so that the present invention can be properly placed in a small space, and has its advantages in installation, transportation, and operation. Convenience, in addition, in order to achieve the secondary dust collection effect Therefore, the composition structure and air passage of the filter unit 50 are a major focus of the present invention, that is, the filter body 51 is provided with a coarse particle dust filter cartridge 52 and a fine particle dust filter element 53 in a coaxial manner, so that the inhaled air can be sequentially From the coarse particle dust filter cartridge 52, the first filter dust collection is performed, and then the filtered air is guided to the fine particle dust filter element 53 for secondary filtration dust collection. In this way, the present invention allows the inhaled air to be collected in a single filter body. Within 51, the dust collection of coarse and fine particle dust can be completed, and the coarse and fine particle dust can also be collectively processed by a single dust collector 61, which can effectively save the cost of the machine body and achieve convenient cleaning. Use effect; In addition, the present invention has a quick and convenient cleaning effect on the fine particle dust filter element 53. The filter element 50 is provided with a filter element cleaning mechanism 54 on the filter unit 50. The filter element cleaning mechanism 54 is provided with a one-way drive cleaning paddle 543 to rotate The user only needs to stand in front of the body to operate the manual lever 545, and after repeatedly swinging the manual lever 545 several times, the internal cleaning paddle 543 can complete the 360-degree rotation to flap and clean the fine particle dust filter element 53. In this way, the fine particle dust filter element 53 can be maintained at the best filtering quality; finally, the present invention is equipped with the first quick release mechanism 33 and the second quick release mechanism 34 on the two columns 32, and the user operates the second quick release mechanism. The second hand pressing lever 345 of the disassembly mechanism 34 can control the dust collecting cylinder 61 to be quickly separated from the filter body 51, so that when the user wants to replace and clean the dust bag 62, he can quickly take out the dust bag 62 for cleaning. The user operates the first hand lever 335 of the first quick-release mechanism 33 to control the filter body 51 to be quickly separated from the exhaust fan body 41, so that when the user replaces and installs the fine-particle dust filter element 53, it also has Convenient use effect of disassembly and assembly.

However, the disclosure of the above embodiments is only used to illustrate the present invention, not to limit the present invention. Therefore, all changes in numerical values or replacement of equivalent elements should still belong to the scope of the present invention.

In summary, when people who are familiar with this technique can understand that this invention can clearly achieve the aforementioned purpose, it has actually complied with the provisions of the Patent Law, so they file an application according to the law.

30‧‧‧Base unit

31‧‧‧Base

311‧‧‧wheel

32‧‧‧Column

33‧‧‧The first quick release organization

34‧‧‧Second quick release mechanism

40‧‧‧Ventilation unit

41‧‧‧Exhaust fan body

411‧‧‧Vent

50‧‧‧Filter unit

51‧‧‧Filter body

512‧‧‧Air inlet

54‧‧‧Filter element cleaning mechanism

545‧‧‧Manual lever

60‧‧‧Dust collection unit

61‧‧‧Dust Collector

612‧‧‧wheel

Claims (9)

An in-line secondary dust collector includes: a base unit including a base and two uprights erected at the left and right sides of the base; an exhaust unit including an exhaust fan body set at the upper end of the two uprights, and A blower arranged in the exhaust fan body, the bottom of the exhaust fan body is provided with a suction channel at the position corresponding to the blower, and the operation of the blower can cause the suction channel to generate a negative pressure suction; a filter unit including one arranged on two uprights In between and directly to the filter body at the position below the exhaust fan body, a coarse particle dust filter cartridge arranged in the filter body, and a fine particle dust filter element arranged in the coarse particle dust filter cartridge, the filter body is hollowed out There is a first chamber, and an air inlet connected to the first chamber for introducing outside air is provided on the outside. The filter body is fixedly connected with a spiral guide plate on the wall of the first chamber. The coarse particles The filter hole group on the cylindrical part of the dust filter cartridge is spirally distributed according to the direction of the deflector. The coarse particle dust filter cartridge is erected and fixed in the filter body, and a circle extending into the first chamber is provided at its lower end. A second chamber is formed in the hollow of the cylindrical part. A plurality of filter hole groups penetrating into the second chamber are provided on the outer peripheral surface of the cylindrical part, and the center of the upper end of the coarse particle dust filter tube is recessed A seat hole, the upper part of the seat hole is connected with the suction channel of the exhaust fan body, the fine particle dust filter element is coaxially sleeved in the seat hole, and the outer periphery is covered with a filter material, and a core hole is formed in the hollow of the filter material. The lower part of the hole is connected with the second chamber; and a dust collecting unit includes a dust collecting tube arranged between the two uprights and directly facing the position below the filter body. The inside of the dust collecting tube corresponds to the first and second A dust collection chamber is recessed in the lower part of the second chamber. The in-line secondary dust collector according to claim 1, wherein the filter unit further includes a filter element cleaning mechanism having a ring seat provided at the upper end of the filter body, and a shaft provided at the center of the ring seat and directed toward The shaft extending down to the hole of the fine particle dust filter element, one is fixed under the shaft A cleaning paddle located at a square and in contact with the inner surface of the filter material, a set of one-way bearings arranged at the upper end of the shaft, and a set of manual paddles fitted on the one-way bearing and extending laterally out of the outer side of the ring seat. The in-line secondary dust collector according to claim 2, wherein the ring seat is a ring-shaped seat body, and the inside of the ring seat is opened with a through hole slightly in the shape of a 3/4 arc angle, and the through hole is up and down Connected with the suction channel and the seat hole respectively, the inner part of the ring seat is additionally provided with a solid part in the shape of a 1/4 arc angle, and the central corner end of the solid part is provided with a shaft through which the shaft can pass. The outer circumference of the solid part is provided with a slot for the manual shift lever to extend and swing at an angle greater than 45 degrees. The in-line secondary dust collector according to claim 1, wherein the coarse particle dust filter cartridge is further provided with a flared oblique cone portion at the lower end of the cylindrical portion. The in-line secondary dust collector according to claim 1, wherein the coarse particle dust filter cartridge is provided with an intermediate through hole connected to the second chamber at the center of the bottom of the seat hole. The in-line secondary dust collector according to claim 1, wherein the coarse particle dust filter cartridge is protrudingly provided at the bottom of the seat hole with a positioning flange that can be used as an airtight sleeve for the bottom end of the fine particle dust filter element. The in-line secondary dust collector according to claim 1, wherein the fine particle dust filter element includes a filter element frame and a fixed plate, and the filter material is arranged around the outer periphery of the filter element frame, so that the fine particle dust filter element forms a hollow core inside The fixed disc is locked and connected to the upper end of the filter element frame, and the upper end of the core hole can be closed. The fine particle dust filter element is locked and fixed on the coarse particle dust filter cartridge by the fixed disc. The in-line secondary dust collector according to claim 1, wherein the filter body is provided with two ears on the left and right sides of the filter body, the base unit further includes a first quick release mechanism, and the first quick release mechanism has two upright fixed A first sliding rail arranged on the inner side of the two uprights corresponding to the height of the filter body, two first sliding sleeves respectively sleeved on the first sliding rail and capable of moving up and down, and two respectively connected to the inner side of the first sliding sleeve The first convex shaft that can be embedded in the two ears of the filter body, and the two are respectively sleeved on the first slide rail, and the A first elastic member that provides resilience, a first hand lever extending outward to the outside of the filter body and having two sides respectively pivotally connected to the first sliding sleeve, and two first hand pressure rods connected to the first sliding rail and the first hand pressure The first link between the rods. The in-line secondary dust collector according to claim 1, wherein two ears are provided on the left and right sides of the dust collector, the base unit further includes a second quick release mechanism, and the second quick release mechanism has two upright A second sliding rail fixed on the inner side of the two uprights corresponding to the height of the dust collector, two second sliding sleeves respectively sleeved on the second sliding rail and capable of moving up and down, and two connected to the second sliding At the inner side of the sleeve, a second convex shaft that can be embedded into the two ears of the dust collector, two second elastic members that are respectively sleeved on the second slide rail and can provide resilience to the second slide sleeve, and one extends outward to A second hand pressing rod at the outer side of the dust collecting cylinder and on both sides thereof is pivotally connected with the second sliding sleeve, and two second connecting rods connected between the second sliding rail and the second hand pressing rod.

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