WO2017092425A1 - 一种用于多级过滤装置的螺旋结构、过滤装置、除尘设备 - Google Patents

一种用于多级过滤装置的螺旋结构、过滤装置、除尘设备 Download PDF

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Publication number
WO2017092425A1
WO2017092425A1 PCT/CN2016/096824 CN2016096824W WO2017092425A1 WO 2017092425 A1 WO2017092425 A1 WO 2017092425A1 CN 2016096824 W CN2016096824 W CN 2016096824W WO 2017092425 A1 WO2017092425 A1 WO 2017092425A1
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Prior art keywords
dust collecting
spiral
collecting chamber
filter
dust
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PCT/CN2016/096824
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English (en)
French (fr)
Inventor
胡国海
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胡国海
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Publication of WO2017092425A1 publication Critical patent/WO2017092425A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours

Definitions

  • the present invention relates to the field of dust removal technology, and more particularly to a spiral structure for a multi-stage filtration device. Furthermore, the invention relates to a filter device and a dust removal device.
  • the vacuum cleaner generally uses a motor to rotate at a high speed to generate air negative pressure in the sealed casing to absorb dust.
  • FIG. 1 is a schematic structural view of a typical filtering device, wherein the direction indicated by the arrow in the figure is the moving direction of the dust when the filtering device operates.
  • the power motor communicates with the filter 11, the air in the dust collecting chamber 12 is extracted, and a negative pressure is formed in the dust collecting chamber 12,
  • the air and the dust are sequentially passed through the dust suction pipe 13 and the air passage under the action of the power motor, enter the dust collecting chamber 12, rotate around the filter 11, and gradually gather in the dust collecting chamber 12 according to the tendency of the spiral to achieve vacuuming. purpose.
  • FIG. 2 is a schematic structural view of another typical filtering device, wherein the direction indicated by the arrow is the moving direction of the dust.
  • FIG. 2 is a schematic structural view of a filter device improved on the basis of FIG. 1, and the air passage entering the dust collecting chamber 12 is changed into a spiral air passage, so that the dust enters the dust collecting chamber 12 and is on the outer periphery of the filter 11.
  • the spiral wind is formed as shown in FIG. 2, so that the dust is sent as far as possible to the end of the dust collecting chamber 12, away from the filter 11, to extend the service life of the filter, reduce the noise and power consumption of the vacuum cleaner, and reduce the suction. The cost of dust.
  • the filter device of Fig. 2 extends the service life of the filter 11 to a certain extent and improves the dust removal efficiency. However, in the case where there is a lot of dust, the filtering device shown in Fig. 2 is also difficult to meet the dust collecting requirements.
  • the present invention provides a spiral structure for a multi-stage filtration apparatus comprising a cylinder and a spiral plate, the spiral plate surrounding the circumference of the cylinder being larger than one week; at the cylinder a direction in which the spiral plates overlap in the axial direction; a side of the baffle, a side of the spiral plate forms a spiral air passage; and the other side of the baffle, the cylinder
  • the side wall is provided with an opening, the end of the side of the cylinder is provided with an end plate, and the other side of the spiral plate forms another spiral air passage.
  • the present invention also provides a filtering device comprising a dust suction pipe, a first dust collecting chamber and a first filter located inside the first dust collecting chamber, wherein the bottom of the first filter has a spiral outside the cylinder a plate, wherein the spiral plate overlaps a baffle, and both ends of the baffle are connected to the spiral plate;
  • a side wall of the first dust collecting chamber on one side of the baffle is provided with an air inlet communicating with the dust suction pipe, such that an upper side of the spiral plate forms a first spiral entering the first dust collecting chamber Wind tunnel
  • a rear side of the first filter is provided with a second dust collecting chamber and a second filter, and a side wall of the cylinder on the other side of the baffle is provided with an opening through which the opening passes
  • the inside of the barrel is in communication with the first filter such that a lower side of the spiral plate forms a second spiral duct entering the second dust collecting chamber, and the second filter is in communication with the air outlet.
  • the other side of the baffle is provided with a wind deflector such that the airflow flowing from the opening has a tendency to flow along the second spiral duct.
  • the spiral plate surrounds the cylinder for more than one week.
  • a spiral partition is disposed on an outer side of the top of the first filter, and a spiral direction of the spiral partition is the same as a spiral direction of the spiral plate.
  • a sidewall of the second dust collecting chamber is provided with a dust collecting port, the dust collecting port is tangential to a sidewall of the second dust collecting chamber, and a dust collecting chamber is disposed outside the dust collecting port .
  • the dust collection chamber is detachably connected to the second dust collection chamber, or the dust collection chamber is provided with a ash cleaning port.
  • the first dust collecting chamber and the second dust collecting chamber have the same cross section.
  • a rear side of the second dust collecting chamber is provided with a third dust collecting chamber and a third filter, and the third filter is in communication with the air outlet.
  • the present invention also provides a dust removing apparatus comprising a power component and the filtering device according to any one of the above, wherein the power component is located in the air outlet, and the airflow enters the filter of the filtering device and flows to the power component.
  • the spiral structure for a multi-stage filtering device comprises a cylinder and a spiral plate, the spiral plate surrounding the circumference of the cylinder is larger than one week; in the axial direction of the cylinder, the spiral plate is overlapped at a position with a baffle One side of the baffle, the side of the spiral plate forms a spiral air passage; the other side of the baffle, the side wall of the cylinder is provided with an opening, the end of the side of the cylinder is provided with an end plate, and the other side of the spiral plate The side forms another spiral duct.
  • the spiral structure is applied in a filtering device, and a filter is installed at both ends of the cylinder so that the air inlet is located at one side of the baffle, and the airflow entering from the air inlet enters the dust collecting chamber along the spiral air passage on one side of the spiral plate, After removing some dust, enter the filter in the dust collecting chamber, then flow to the other side of the baffle through the opening of the inside of the cylinder and the side wall of the cylinder, and then enter the other set along the spiral air passage on the other side of the spiral plate. In the dust chamber, perform a second filtration.
  • the spiral structure can form a spiral air inlet passage of the two dust collecting chambers, which not only improves the dust removing effect but also saves space.
  • the filter device provided by the present invention comprises a dust suction pipe, a first dust collecting chamber and a first filter located inside the first dust collecting chamber, and a spiral plate is arranged outside the cylinder extending at the bottom of the first filter, and the spiral plate overlaps
  • the position is provided with a baffle, and both ends of the baffle are connected with the spiral plate; the first set of the baffle side
  • the side wall of the dust chamber is provided with an air inlet communicating with the dust suction pipe, such that the upper side of the spiral plate forms a first spiral air passage entering the first dust collecting chamber; and the rear side of the first filter is provided with a second dust collecting chamber
  • a second filter the side wall of the cylinder on the other side of the baffle is provided with an opening, and the opening communicates with the first filter through the inside of the cylinder such that the lower side of the spiral plate forms into the second dust collecting chamber
  • the second spiral air duct is connected to the air outlet.
  • the filtering device When the filtering device is working, under the action of the power component, a negative pressure is generated in the first dust collecting chamber and the second dust collecting chamber, and the gas with the dust enters the first dust collecting chamber through the dust collecting pipe first, and the gas passes through the first After filtering, the filter enters the second dust collecting chamber, is filtered by the second filter, enters the inside of the second filter, flows out through the air outlet, and flows out through the power component.
  • the filter device has two filters capable of two-stage filtration.
  • the dust suction pipe inhales the airflow carrying the dust, enters the first spiral air passage through the air inlet, and the airflow enters the first dust collecting chamber according to the movement of the spiral, and acts in the centrifugal force in the first dust collecting chamber.
  • Part of the dust is removed; then, the gas enters the inside of the first filter, enters the second spiral duct through the inside of the cylinder and the opening, and the airflow continues to enter the second dust collecting chamber in a spiral manner, continuing in the second dust collecting chamber.
  • Part of the dust is removed; then, the airflow enters the second filter and flows out through the air outlet.
  • the filter device can not only perform two-stage filtration, but also in the two-stage filtration process, the air flow flows in the dust collecting chamber in a spiral manner, and the spiral air inlet passages of the two dust collecting chambers are formed by one spiral plate, and the same block is used.
  • the upper side and the lower side of the spiral plate respectively form two spiral inlet passages of the dust collecting chamber, which not only improves the dust removing effect but also saves space.
  • the filtering device is capable of two-stage filtration, further improving the dust removal efficiency, improving the cleanliness of the airflow, improving work efficiency and dust removal efficiency, and prolonging the service life of the power component.
  • the outer side of the top of the first filter is provided with a spiral partition, and the spiral direction of the spiral partition is the same as the spiral direction of the spiral plate.
  • the spiral partition divides the first dust collecting chamber into a cyclone working chamber and a dust collecting chamber, and one end of the first spiral air passage is a cyclone working chamber, and the other end is a dust collecting chamber.
  • the dust can be carried into the dust collection chamber through the opening of the spiral partition, and the dust is thrown to the end of the dust collection chamber away from the spiral partition to realize the separation of the dust and the gas, and the dust is continuously in the dust collection room.
  • the inside gathers and the gas enters the first filter under the action of the power component.
  • the present invention also provides a dust removing apparatus comprising a power component, further comprising the filtering device according to any one of the above, wherein the power component is located in the air outlet, and the airflow enters the filter of the filtering device and flows to the power component.
  • the filtering device has the above technical effects, and therefore the dust removing device having the filtering device also has a corresponding technical effect.
  • Figure 1 is a schematic view showing the structure of a typical filtering device
  • FIG. 2 is a schematic structural view of another typical filtering device
  • FIG. 3 is a schematic structural view of a specific embodiment of a spiral structure provided by the present invention.
  • FIG. 4 is a schematic structural view of a specific embodiment of a filtering device provided by the present invention.
  • Figure 5 is a partial structural view of the filter device shown in Figure 4 and a schematic diagram of the airflow trajectory;
  • Fig. 6 is a schematic view showing another perspective of the partial structure shown in Fig. 5.
  • Dust collecting pipe 1 first dust collecting chamber 21; first filter 22; spiral partition 23; cylinder 3; spiral plate 4; baffle 5; second dust collecting chamber 61; second filter 62; ; air deflector 8; dust collection chamber 9.
  • FIG. 3 is a schematic structural view of a specific embodiment of a spiral structure provided by the present invention.
  • the present invention provides a spiral structure for a multi-stage filtration apparatus comprising a cylinder 3 and a spiral plate 4, the spiral plate 4 surrounding the circumference of the cylinder 3 for more than one week;
  • a baffle 5 is provided at a position where the spiral plate 4 overlaps; one side of the baffle 5, a side of the spiral plate 4 forms a spiral air passage; the other side of the baffle 5, the side of the cylinder 3
  • the wall is provided with an opening 7, the end of the side of the cylinder 3 is provided with an end plate, and the other side of the spiral plate 4 forms another snail Cyclone.
  • the spiral structure is applied in a filtering device, and a filter is installed at both ends of the cylinder 3 so that the air inlet is located at one side of the baffle 5, and the airflow entering from the air inlet can enter along the spiral air passage on the side of the spiral plate 4
  • the spiral air passage on the other side enters another dust collecting chamber for a second filtration.
  • the spiral structure can form the spiral air inlet passages of the two dust collecting chambers, which not only improves the dust removing effect, but also saves space, enables the filtering device to perform multi-stage filtering, and has high dust removing efficiency and working efficiency.
  • FIG. 4 is a schematic structural diagram of a specific embodiment of a filtering device according to the present invention.
  • FIG. 5 is a partial structural diagram and a schematic diagram of a flow trajectory of the filtering device illustrated in FIG. 4 , and
  • the present invention provides a filtering device comprising a dust suction pipe 1, a first dust collecting chamber 21, and a first filter 22 located inside the first dust collecting chamber 21, the first filter a spiral plate 4 is disposed outside the cylinder 3 extending at the bottom of the bottom portion 22, and a baffle plate 5 is disposed at a position where the spiral plate 4 overlaps, and both ends of the baffle plate 5 are connected to the spiral plate 4;
  • the side wall of the first dust collecting chamber 21 on one side of the baffle 5 is provided with an air inlet communicating with the dust suction pipe 1, so that the upper side surface of the spiral plate 4 forms a first spiral air passage entering the first dust collecting chamber 21;
  • the rear side of the first filter 22 is provided with a second dust collecting chamber 61 and a second filter 62, and the side wall of the cylinder 3 on the other side of the baffle 5 is provided with an opening 7 through which the opening 7 passes
  • the inside is in communication with the first filter 22 such that the lower side of the spiral plate 4 forms a second spiral duct entering the second dust collecting chamber 61, and the second filter 62 communicates with the air outlet.
  • the filtering device When the filtering device is in operation, under the action of the power component, a negative pressure is generated in the first dust collecting chamber 21 and the second dust collecting chamber 61, and the dust-bearing gas first enters the first dust collecting chamber 21 through the dust suction pipe 1. After being filtered by the first filter 22, the gas enters the second dust collecting chamber 61, is filtered by the second filter 62, enters the inside of the second filter 62, flows out through the air outlet, and flows out through the power component.
  • the filter device has two filters capable of two-stage filtration.
  • the dust suction pipe 1 inhales the airflow carrying the dust, enters the first spiral air passage through the air inlet, and the airflow enters the first dust collecting chamber 21 according to the movement of the spiral, and the part is removed by the centrifugal force. Dust; then, the gas enters the interior of the first filter 22 and passes through the interior of the cylinder 3 And the opening 7 of the side wall of the cylinder 3 enters the second spiral duct, the airflow continues to enter the second dust collecting chamber 61 in a spiral manner, and further dust is removed in the second dust collecting chamber 61; The second filter 62 flows out through the air outlet.
  • the specific flow of the airflow can be seen in Figures 4 to 6.
  • the filtering device can not only perform two-stage filtration, but also in the two-stage filtration process, the airflow flows in the dust collecting chamber in a spiral manner.
  • the internal dust has a certain centrifugal force, and the dust is in the dust. Under the action of centrifugal force, it is close to the side wall of the dust collecting chamber and moves along the side wall. During this process, the dust is away from the filter, and during the process of pushing the dust by the airflow, the dust is easily discharged from the airflow, leaving In the dust collection room.
  • the spiral inlet passages of the two dust collecting chambers are formed by a spiral plate 4, and the spiral inlets of the two dust collecting chambers are respectively formed by the upper side and the lower side of the same block spiral plate 4.
  • the channel not only improves the dust removal effect, but also saves space.
  • the filtering device is capable of two-stage filtration, further improving the dust removal efficiency, improving the cleanliness of the airflow, improving work efficiency and dust removal efficiency, and prolonging the service life of the power component.
  • the first-stage filter is a pore-shaped filter, and the filtering effect is good.
  • the second-stage filter can be a pore-shaped filter or a strip-shaped filter, and the filtering effect of the two filters is similar, and the strip filter is convenient for processing.
  • the second stage filter is a strip filter.
  • the other side of the baffle 5 is provided with a wind deflector 8 such that the airflow flowing from the opening 7 has a tendency to flow along the second spiral duct.
  • the gas sucked from the dust suction pipe 1 enters the air inlet, it is blocked by the baffle 5, and the first spiral air passage formed along the upper side of the spiral plate 4 enters the first dust collecting chamber 21, in the first dust collecting chamber.
  • the gas enters the first filter 22; then flows through the inside of the cylinder 3 and the opening 7 of the side wall of the cylinder 3 to the second dust collecting chamber 61, on the other side of the baffle 5
  • the air deflector 8 is provided at the opening 7, and the air deflector 8 has a guiding surface, which can serve as an auxiliary guide, so that the airflow has a tendency to flow along the lower side of the spiral plate 4 toward the second dust collecting chamber 61.
  • the spiral plate 4 surrounds the cylinder 3 for more than one week.
  • the two sides of the spiral plate 4 respectively form two inlet passages of the two dust collecting chambers, and when the spiral plate 4 surrounds the cylinder 3 for more than one week, the two spiral passages formed can be formed around the cylinder 3 One week less, the longer the spiral channel, the stronger the guiding effect on the airflow, the higher the centrifugal force of the airflow and its internal dust, and the easier it is to remove the dust.
  • the second filter 62 is mounted at the other end of the cylinder 3.
  • Two sides of the spiral plate 4 surrounding the cylinder 3 respectively form two spiral air inlet passages of the two dust collecting chambers, and the second filter 62 may be installed at the end surface of the second dust collecting chamber 61, or may be installed At the other end of the cylinder 3, one end of the second filter 62 may be attached to the end surface of the cylinder 3, and the other end may abut against the end surface of the second dust collecting chamber 61.
  • the specific structure is as shown in Fig. 4.
  • the diameter of the cylinder 3 is the same as the diameter of the two filters, which is convenient for processing and manufacturing, and saves space. Save production costs.
  • the outer side of the top of the first filter 22 is provided with a spiral partition 23, and the spiral direction of the spiral partition 23 is the same as the spiral direction of the spiral plate 4.
  • the spiral partition 23 divides the first dust collecting chamber 21 into a cyclone working chamber and a dust collecting chamber, and one end of the first spiral air passage is a cyclone working chamber, and the other end is a dust collecting chamber.
  • the remote push, the dust and the like are deposited away from the end of the dust collecting chamber away from the spiral partition 23 to realize separation from the gas, and the gas enters the first filter 22 under the action of the power component, so that the impurities entering the first filter 22 are large.
  • the amplitude is reduced, and the dust removal pressure of the first filter 22 can be effectively reduced, and the service life of the first filter 22 is prolonged.
  • the opening of the spiral partition 23 may be larger than the air inlet of the first dust collecting chamber 21, and the dust moves along the spiral path after the airflow enters the first dust collecting chamber 21 along the first spiral air passage, under the action of centrifugal force, The dust will be scattered, and the spread will be larger than the size of the air inlet. Therefore, the opening is larger than the air inlet, which is beneficial to throw dust into the dust collection chamber to improve the dust-removing ability.
  • the side wall of the second dust collecting chamber 61 is provided with a dust collecting port, the dust separating port is tangential to the side wall of the second dust collecting chamber 61, and a dust collecting chamber 9 is disposed outside the dust collecting port.
  • the airflow After the airflow enters the second dust collecting chamber 61 through the second spiral air passage, the airflow still moves in the second dust collecting chamber 61 according to the movement of the spiral.
  • the impurities in the gas have a far away from the center under the action of the centrifugal force. Movement trend, near the side wall of the second dust collecting chamber 61, through the side wall When the dusting port is cut, it can be taken out from the dust collecting port along the side wall and enter the dust collecting chamber 9, and the dust removing effect is good.
  • the dust collecting port of the side wall of the second dust collecting chamber 61 may be smaller than the inlet of the second dust collecting chamber 61. After being filtered by the first dust collecting chamber 21, only a small amount of dust enters the second dust collecting chamber 61. Therefore, the smaller dust collecting port can also remove the dust, and the smaller dust collecting port can also avoid being The dust that is pulled out flows back.
  • the dust collection chamber 9 is detachably connected to the second dust collection chamber 61, or the dust collection chamber 9 is provided with a ash cleaning port.
  • the dust collecting chamber 9 and the second dust collecting chamber 61 may be detachably connected, and the dust collecting chamber 9 may be selected according to the working condition of the filtering device, and the dust collecting port is sealed when the dust collecting chamber 9 is not installed; When there is a large amount of accumulated dust in the dust collecting chamber 9, the dust can be removed to clean the dust; the dust collecting chamber 9 and the second dust collecting chamber 61 can also be fixedly connected, and the dust collecting chamber 9 can be provided with dust. When the dust in the dust collection chamber 9 is large, the dust cleaning port can be opened to clean the dust.
  • the first dust collecting chamber 21 and the second dust collecting chamber 61 have the same cross section.
  • the two dust collecting chambers can share the same housing and can be processed by one mold, which saves cost, is easy to manufacture and easy to install.
  • the third dust collecting chamber 61 and the third filter are disposed on the rear side of the second dust collecting chamber 61, and the third filter communicates with the air outlet.
  • the filtering device may be connected with a filter in series behind the second filter 62, and a third-stage filter or a plurality of filters may be arranged in a manner similar to the second filter 62 to multi-stage the gas to further improve dust removal. effectiveness.
  • the number of stages filtered by the filter device can be set according to the needs of actual use, and when the dust removal efficiency is high, a filter device having a multi-stage filter is used.
  • the present invention also provides a dust removing apparatus comprising a power component and the filtering device according to each of the above embodiments, the power component being in communication with a filter of the filtering device in an air outlet.
  • the filtering device has the above technical effects, and therefore the dust removing device having the filtering device also has a corresponding technical effect. Please refer to the prior art for the structure of other parts of the dust removal equipment, and will not be repeated here.

Abstract

一种用于多级过滤装置的螺旋结构，包括圆筒（3）和螺旋板（4），螺旋板（4）环绕圆筒（3）的周部大于一周；在圆筒（3）的轴向方向上，螺旋板（4）重叠的位置设有挡板（5）；挡板（5）的一侧，螺旋板（4）的侧面形成一个螺旋风道；挡板（5）的另一侧，圆筒（3）的侧壁设有开口（7），圆筒（3）此侧的端部设有端板，螺旋板（4）的另一侧面形成另一个螺旋风道。

Description

一种用于多级过滤装置的螺旋结构、过滤装置、除尘设备
本申请要求于2015年11月30日提交中国专利局、申请号为201510861494.7、发明名称为“一种用于多级过滤装置的螺旋结构、过滤装置、除尘设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及除尘技术领域，特别是涉及一种用于多级过滤装置的螺旋结构。此外，本发明还涉及过滤装置和除尘设备。
背景技术
随着经济建设的快速发展，对环境的要求也越来越高，各种各样的过滤装置应运而生，吸尘器一般利用电动机高速旋转，在密封的壳体内产生空气负压，吸取尘屑。
请参考图1，图1为一种典型的过滤装置的结构示意图，其中，图中箭头所示的方向为过滤装置工作时尘屑的运动方向。
从图1中箭头所示的方向可以看出，在现有技术的过滤装置中，动力电机与过滤器11连通，将集尘室12中的空气抽出，在集尘室12中形成负压，使空气和尘屑在动力电机的作用下，依次经过吸尘管13和风道，进入集尘室12，绕过滤器11旋转并按螺旋的趋势逐渐在集尘室12内汇聚，达到吸尘的目的。
但是，随着尘屑的增多，收集到集尘室12里的尘屑容易受动力电机的影响，产生向过滤器11移动的趋势，使尘屑粘附在过滤器11上，阻塞过滤器11的滤网。这样不仅会增加动力电机的电耗，增大除尘设备的噪音，降低除尘效率；而且会影响过滤器11的使用寿命，增加过滤器11的维护频次，并增加清洁成本。
请参考图2，图2为另一种典型的过滤装置的结构示意图，其中，箭头所指方向为尘屑的运动方向。
图2为在图1基础上改进的一种过滤装置的结构示意图，将进入集尘室12的风道改为螺旋风道，使尘屑进入集尘室12后，在过滤器11的外周 形成如图2所示的螺旋风，从而使尘屑尽可能远送至集尘室12的端部，远离过滤器11，以延长过滤器的使用寿命，降低吸尘器的噪音和电耗，降低吸尘的成本。
图2中的过滤装置在一定程度上延长了过滤器11的使用寿命，并提高了除尘效率。但是，在一些尘屑较多的场合，图2所示的过滤装置也很难满足吸尘要求。
因此，如何提高过滤装置的除尘效率，是本领域技术人员目前需要解决的技术问题。
发明内容
本发明的目的是提供一种用于多级过滤装置的螺旋结构，该螺旋结构能够使过滤装置进行多级过滤，且具有较高的除尘效率和工作效率。本发明的另一个目的是提供一种具有上述螺旋结构的过滤装置。本发明的第三个目的是提供一种除尘设备。
为实现上述发明目的，本发明提供了一种用于多级过滤装置的螺旋结构，包括圆筒和螺旋板，所述螺旋板环绕所述圆筒的周部大于一周；在所述圆筒的轴向方向上，所述螺旋板重叠的位置设有挡板；所述挡板的一侧，所述螺旋板的侧面形成一个螺旋风道；所述挡板的另一侧，所述圆筒的侧壁设有开口，所述圆筒此侧的端部设有端板，所述螺旋板的另一侧面形成另一个螺旋风道。
本发明还提供了一种过滤装置，包括吸尘管、第一集尘室及位于第一集尘室内部的第一过滤器，所述第一过滤器的底部延伸的圆筒外侧设有螺旋板，所述螺旋板重叠的位置设有挡板，所述挡板的两端均与所述螺旋板相连；
所述挡板一侧所述第一集尘室的侧壁设有与所述吸尘管连通的进风口，使得所述螺旋板的上侧面形成进入所述第一集尘室的第一螺旋风道；
所述第一过滤器的后侧设有第二集尘室和第二过滤器，位于所述挡板的另一侧的所述圆筒的侧壁设有开口，所述开口通过所述圆筒的内部与所述第一过滤器连通，使得所述螺旋板的下侧面形成进入所述第二集尘室的第二螺旋风道，所述第二过滤器与出风口连通。
可选的，所述挡板的另一侧设有导风板，使得从所述开口流过来的气流具有沿所述第二螺旋风道流动的趋势。
可选的，所述螺旋板环绕所述圆筒大于一周。
可选的，所述第一过滤器的顶部的外侧设有螺旋隔板，所述螺旋隔板的螺旋方向与所述螺旋板的螺旋方向相同。
可选的，所述第二集尘室的侧壁设有析尘口，所述析尘口与所述第二集尘室的侧壁相切，所述析尘口外侧设有粉尘收集腔。
可选的，所述粉尘收集腔与所述第二集尘室可拆卸连接，或者，所述粉尘收集腔设有清灰口。
可选的，所述第一集尘室和所述第二集尘室的横截面相同。
可选的，所述第二集尘室的后侧设有第三集尘室及第三过滤器，所述第三过滤器与所述出风口连通。
本发明还提供了一种除尘设备，包括动力部件和上述任一项所述的过滤装置，所述动力部件位于出风口内，气流进入所述过滤装置的过滤器后流向所述动力部件。
本发明提供的用于多级过滤装置的螺旋结构，包括圆筒和螺旋板，螺旋板环绕圆筒的周部大于一周；在圆筒的轴向方向上，螺旋板重叠的位置设有挡板；挡板的一侧，螺旋板的侧面形成一个螺旋风道；挡板的另一侧，圆筒的侧壁设有开口，圆筒此侧的端部设有端板，螺旋板的另一侧面形成另一个螺旋风道。
该螺旋结构应用在过滤装置中，在圆筒的两端安装过滤器，使进风口位于挡板的一侧，从进风口进入的气流沿螺旋板一侧的螺旋风道进入集尘室，甩掉部分尘屑后进入该集尘室内的过滤器，然后经圆筒内部和圆筒侧壁的开口流到挡板的另一侧，然后沿螺旋板另一侧的螺旋风道进入另一个集尘室，进行第二次过滤。该螺旋结构能够形成两个集尘室的螺旋进风通道，既提高了除尘效果，又节省了空间。
本发明提供的过滤装置，包括吸尘管、第一集尘室及位于第一集尘室内部的第一过滤器，第一过滤器的底部延伸的圆筒外侧设有螺旋板，螺旋板重叠的位置设有挡板，挡板的两端均与螺旋板相连；挡板一侧的第一集 尘室的侧壁设有与吸尘管连通的进风口，使得螺旋板的上侧面形成进入第一集尘室的第一螺旋风道；第一过滤器的后侧设有第二集尘室和第二过滤器，位于挡板的另一侧的圆筒的侧壁设有开口，开口通过圆筒的内部与第一过滤器连通，使得螺旋板的下侧面形成进入第二集尘室的第二螺旋风道，第二过滤器与出风口连通。
过滤装置工作时，在动力部件的作用下，在第一集尘室和第二集尘室内产生负压，带着尘屑的气体经吸尘管先进入第一集尘室，气体经第一过滤器过滤后进入第二集尘室，经第二过滤器过滤后，进入第二过滤器的内部，经出风口流出，并经动力部件流出。
与现有技术相比，该过滤装置具有两个过滤器，能够进行两级过滤。在动力部件的作用下，吸尘管吸入携带尘屑的气流，通过进风口进入第一螺旋风道，气流按照螺旋的运动方式进入第一集尘室，在第一集尘室内在离心力的作用下甩掉部分尘屑；然后，气体进入第一过滤器内部，通过圆筒内部和开口进入第二螺旋风道，气流继续按照螺旋的方式进入第二集尘室，在第二集尘室内继续甩掉部分尘屑；然后，气流进入第二过滤器，经出风口流出。
该过滤装置不但能够进行两级过滤，而且在两级过滤过程中，气流均以螺旋的方式在集尘室内流动，两个集尘室的螺旋进风通道由一块螺旋板形成，利用同一个块螺旋板的上侧面和下侧面分别形成了两个集尘室的螺旋进风通道，既提高了除尘效果，又节省了空间。
该过滤装置能够进行两级过滤，进一步提高了尘屑的清除效率，提高气流的干净程度，提高工作效率和除尘效率，并且能够延长动力部件的使用寿命。
一种优选的方式中，第一过滤器的顶部的外侧设有螺旋隔板，螺旋隔板的螺旋方向与螺旋板的螺旋方向相同。
螺旋隔板将第一集尘室分成了旋风工作室和粉尘收集室，靠近第一螺旋风道的一端为旋风工作室腔，另一端为粉尘收集室。螺旋气流运动时能够携带尘屑通过螺旋隔板的开口进入粉尘收集室，将尘屑抛向粉尘收集室中远离螺旋隔板的一端，实现尘屑与气体的分离，尘屑不断在粉尘收集室 内聚集，气体在动力部件的作用下进入第一过滤器。
本发明还提供了一种除尘设备，包括动力部件，还包括上述任一项所述的过滤装置，动力部件位于出风口内，气流进入过滤装置的过滤器后流向动力部件。该过滤装置具有上述技术效果，故具有该过滤装置的除尘设备也具有相应的技术效果。
附图说明
下面附图和实施例对本发明进一步说明。
图1为一种典型的过滤装置的结构示意图；
图2为另一种典型的过滤装置的结构示意图；
图3为本发明所提供的螺旋结构的一种具体实施方式的结构示意图；
图4为本发明所提供的过滤装置一种具体实施方式的结构示意图；
图5为图4所示的过滤装置的局部结构示意图及气流轨迹示意图；
图6为图5所示的局部结构另一种视角的示意图。
其中，图1和图2中的附图标记和部件名称之间的对应关系如下：
过滤器11，集尘室12，吸尘管13；
图3至图6中的附图标记和部件名称之间的对应关系如下：
吸尘管1；第一集尘室21；第一过滤器22；螺旋隔板23；圆筒3；螺旋板4；挡板5；第二集尘室61；第二过滤器62；开口7；导风板8；粉尘收集腔9。
具体实施方式
下面结合附图，对本发明实施例的技术方案进行清楚、完整地描述。
请参考图3，图3为本发明所提供的螺旋结构的一种具体实施方式的结构示意图。
在一种具体的实施方式中，本发明提供了一种用于多级过滤装置的螺旋结构，包括圆筒3和螺旋板4，螺旋板4环绕圆筒3的周部大于一周；在圆筒3的轴向方向上，螺旋板4重叠的位置设有挡板5；挡板5的一侧，螺旋板4的侧面形成一个螺旋风道；挡板5的另一侧，圆筒3的侧壁设有开口7，圆筒3此侧的端部设有端板，螺旋板4的另一侧面形成另一个螺 旋风道。
该螺旋结构应用在过滤装置中，在圆筒3的两端安装过滤器，使进风口位于挡板5的一侧，则从进风口进入的气流能够沿螺旋板4一侧的螺旋风道进入集尘室，在集尘室中，气流甩掉部分尘屑后进入过滤器，然后经圆筒3内部和圆筒3侧壁的开口7流到挡板的另一侧，然后沿螺旋板4另一侧的螺旋风道进入另一个集尘室，进行第二次过滤。该螺旋结构能够形成两个集尘室的螺旋进风通道，既提高了除尘效果，又节省了空间，能够使过滤装置进行多级过滤，且具有较高的除尘效率和工作效率。
请参考图4至图6，图4为本发明所提供的过滤装置一种具体实施方式的结构示意图，图5为图4所示的过滤装置的局部结构示意图及气流轨迹示意图，图6为图5所示的局部结构另一种视角的示意图。
在一种具体的实施方式中，本发明提供了一种过滤装置，包括吸尘管1、第一集尘室21及位于第一集尘室21内部的第一过滤器22，第一过滤器22的底部延伸的圆筒3外侧设有螺旋板4，螺旋板4重叠的位置设有挡板5，挡板5的两端均与螺旋板4相连；
挡板5一侧的第一集尘室21的侧壁设有与吸尘管1连通的进风口，使得螺旋板4的上侧面形成进入第一集尘室21的第一螺旋风道；
第一过滤器22的后侧设有第二集尘室61和第二过滤器62，位于挡板5的另一侧的圆筒3的侧壁设有开口7，开口7通过圆筒3的内部与第一过滤器22连通，使得螺旋板4的下侧面形成进入第二集尘室61的第二螺旋风道，第二过滤器62与出风口连通。
过滤装置工作时，在动力部件的作用下，在第一集尘室21和第二集尘室61内产生负压，带着尘屑的气体经吸尘管1先进入第一集尘室21，气体经第一过滤器22过滤后进入第二集尘室61，经第二过滤器62过滤后，进入第二过滤器62的内部，经出风口流出，并经动力部件流出。
与现有技术相比，该过滤装置具有两个过滤器，能够进行两级过滤。在动力部件的作用下，吸尘管1吸入携带尘屑的气流，通过进风口进入第一螺旋风道，气流按照螺旋的运动方式进入第一集尘室21，在离心力的作用下甩掉部分尘屑；然后，气体进入第一过滤器22内部，通过圆筒3内部 和圆筒3侧壁的开口7进入第二螺旋风道，气流继续按照螺旋的方式进入第二集尘室61，在第二集尘室61内继续甩掉部分尘屑；然后，气流进入第二过滤器62，经出风口流出。具体的气流流动的轨迹可参见附图4至附图6。
该过滤装置不但能够进行两级过滤，而且在两级过滤过程中，气流均以螺旋的方式在集尘室内流动，气流螺旋运动的过程中，其内部的尘屑具有一定的离心力，尘屑在离心力的作用下靠近集尘室的侧壁，并沿着侧壁运动，在此过程中，尘屑远离过滤器，并且在气流推送尘屑的过程中，很容易将尘屑甩出气流，留在集尘室中。
另外，如附图所示，两个集尘室的螺旋进风通道由一块螺旋板4形成，利用同一个块螺旋板4的上侧面和下侧面分别形成了两个集尘室的螺旋进风通道，既提高了除尘效果，又节省了空间，
该过滤装置能够进行两级过滤，进一步提高了尘屑的清除效率，提高气流的干净程度，提高工作效率和除尘效率，并且能够延长动力部件的使用寿命。
另外，第一级过滤器为孔状过滤器，过滤效果较好，第二级过滤器可以为孔状过滤器，也可以条状过滤器，二者的过滤效果相近，条状过滤器便于加工制造，优选第二级过滤器为条状过滤器。
具体的，挡板5的另一侧设有导风板8，使得从开口7流过来的气流具有沿第二螺旋风道流动的趋势。
从吸尘管1吸入的气体，进入进风口后，受到挡板5的阻挡，沿着螺旋板4的上侧面形成的第一螺旋风道进入第一集尘室21，在第一集尘室21内甩掉部分尘屑后，气体进入第一过滤器22；然后经圆筒3的内部和圆筒3侧壁的开口7流向第二集尘室61，在挡板5的另一侧的开口7处设置导风板8，导风板8具有导向面，能够起到辅助导向的作用，使得气流具有沿螺旋板4的下侧面向第二集尘室61流动的趋势。
一种优选的实施方式中，螺旋板4环绕圆筒3大于一周。
螺旋板4的两个侧面分别形成了两个集尘室的两个进风通道，螺旋板4环绕圆筒3大于一周时，能够使得形成的两个螺旋通道能够绕圆筒3至 少一周，螺旋通道越长，起到的对气流的导向作用越强，能够增大气流及其内部尘屑的离心力，越容易将尘屑甩出气流。
进一步的，第二过滤器62安装在圆筒3的另一端。
环绕在圆筒3上的螺旋板4的两个侧面分别形成了两个集尘室的两个螺旋进风通道，第二过滤器62可以安装在第二集尘室61的端面，也可以安装在圆筒3的另一端，还可以使第二过滤器62一端安装在圆筒3的端面，另一端抵顶第二集尘室61的端面，具体结构如附图4所示。
第二过滤器62安装在圆筒3的另一端时，由一个圆筒3直接安装两个过滤器，圆筒3的直径与两个过滤器的直径相同，便于加工制造，既节省空间，又节省生产成本。
上述各具体的实施方式中，第一过滤器22的顶部的外侧设有螺旋隔板23，螺旋隔板23的螺旋方向与螺旋板4的螺旋方向相同。
螺旋隔板23将第一集尘室21分成了旋风工作室和粉尘收集室，靠近第一螺旋风道的一端为旋风工作室，另一端为粉尘收集室。进入第一集尘室21的气流通过第一螺旋风道后，继续按照螺旋的方式运动，气流带着尘屑通过螺旋隔板23的开口进入粉尘收集室，尘屑等杂质在旋转过程中向远处推送，尘屑等向粉尘收集室中远离螺旋隔板23一端沉积，实现与气体的分离，气体在动力部件的作用下进入第一过滤器22，使进入第一过滤器22的杂质大幅度减少，可以有效减小第一过滤器22的除尘压力，延长第一过滤器22的使用寿命。
螺旋隔板23的开口可以大于第一集尘室21的进风口，尘屑随着气流沿第一螺旋风道进入第一集尘室21后，按照螺旋的轨迹运动，在离心力的作用下，尘屑会有一定的分散，其散布的范围会大于进风口的大小。因此，开口大于进风口，有利于将尘屑抛入粉尘收集腔，提高析尘能力。
另一种具体的实施方式中，第二集尘室61的侧壁设有析尘口，析尘口与第二集尘室61的侧壁相切，析尘口外侧设有粉尘收集腔9。
气流通过第二螺旋风道进入第二集尘室61后，气流仍然按照螺旋的运动方式在第二集尘室61内运动，气体旋转时，气体中的杂质在离心力的作用下具有远离中心的运动趋势，靠近第二集尘室61的侧壁，经过与侧壁相 切的析尘口时，能够沿着侧壁从析尘口甩出，进入粉尘收集腔9，除尘效果好。
粉尘收集腔9中没有动力源，杂质进入粉尘收集腔9中，其离心力逐渐减小，最后汇集在一起，实现除尘的目的。
第二集尘室61的侧壁的析尘口的可以小于第二集尘室61的入口。经过第一集尘室21过滤后，只有较小的尘屑进入第二集尘室61，所以，较小的析尘口也可以将尘屑甩出，较小的析尘口还可以避免被甩出的尘屑回流。
进一步的，所述粉尘收集腔9与所述第二集尘室61可拆卸连接，或者，所述粉尘收集腔9设有清灰口。
粉尘收集腔9与第二集尘室61之间可以为可拆卸连接，可以根据过滤装置的工作情况，选择是否安装粉尘收集腔9，不安装粉尘收集腔9时，将析尘口封住；粉尘收集腔9内的聚集的灰尘较多时，可以将其拆下，清理灰尘；粉尘收集腔9与第二集尘室61之间也可以为固定连接，粉尘收集腔9上可以设有清灰口，粉尘收集腔9内的灰尘较多时，可以开启清灰口清理灰尘。
上述各具体的实施方式中，第一集尘室21和第二集尘室61的横截面相同。两个集尘室可以共用同一个壳体，可以通过一个模具加工，节省成本，既便于制造，又便于安装。
上述各具体的实施方式中，第二集尘室61的后侧设有第三集尘室及第三过滤器，第三过滤器与出风口连通。
该过滤装置可以在第二过滤器62后面串联过滤器，按照与第二过滤器62类似的方式设置第三级过滤器，或更多级的过滤器，对气体进行多级过滤，进一步提高除尘效率。
具体的，可以根据实际使用的需要，设定过滤装置过滤的级数，在除尘效率要求较高的场合，使用具有多级过滤器的过滤装置。
除了上述过滤装置，本发明还提供了一种除尘设备，包括动力部件和上述各实施例所述的过滤装置，所述动力部件在出风口内与所述过滤装置的过滤器连通。
该过滤装置具有上述技术效果，故具有该过滤装置的除尘设备也具有相应的技术效果。除尘设备其他各部分的结构请参考现有技术，本文不再赘述。
以上对本发明所提供的螺旋结构、过滤装置及除尘设备进行了详细介绍。本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。

Claims (10)

  1. 一种用于多级过滤装置的螺旋结构，其特征在于，包括圆筒(3)和螺旋板(4)，所述螺旋板(4)环绕所述圆筒(3)的周部大于一周；在所述圆筒(3)的轴向方向上，所述螺旋板(4)重叠的位置设有挡板(5)；所述挡板(5)的一侧，所述螺旋板(4)的侧面形成一个螺旋风道；所述挡板(5)的另一侧，所述圆筒(3)的侧壁设有开口(7)，所述圆筒(3)此侧的端部设有端板，所述螺旋板(4)的另一侧面形成另一个螺旋风道。
  2. 一种过滤装置，包括吸尘管(1)、第一集尘室(21)及位于第一集尘室(21)内部的第一过滤器(22)，其特征在于，所述第一过滤器(22)的底部延伸的圆筒(3)外侧设有螺旋板(4)，所述螺旋板(4)重叠的位置设有挡板(5)，所述挡板(5)的两端均与所述螺旋板(4)相连；
    所述挡板(5)一侧的所述第一集尘室(21)的侧壁设有与所述吸尘管(1)连通的进风口，使得所述螺旋板(4)的上侧面形成进入所述第一集尘室(21)的第一螺旋风道；
    所述第一过滤器(22)的后侧设有第二集尘室(61)和第二过滤器(62)，位于所述挡板(5)的另一侧的所述圆筒(3)的侧壁设有开口(7)，所述开口(7)通过所述圆筒(3)的内部与所述第一过滤器(21)连通，使得所述螺旋板(4)的下侧面形成进入所述第二集尘室(61)的第二螺旋风道，所述第二过滤器(62)与出风口连通。
  3. 如权利要求2所述的过滤装置，其特征在于，所述挡板(5)的另一侧设有导风板(8)，使得从所述开口(7)流过来的气流具有沿所述第二螺旋风道流动的趋势。
  4. 如权利要求3所述的过滤装置，其特征在于，所述螺旋板(4)环绕所述圆筒(3)大于一周。
  5. 如权利要求2至4任一项所述的过滤装置，其特征在于，所述第一过滤器(22)的顶部的外侧设有螺旋隔板(23)，所述螺旋隔板(23)的螺旋方向与所述螺旋板(4)的螺旋方向相同。
  6. 如权利要求2至4任一项所述的过滤装置，其特征在于，所述第二集尘室(61)的侧壁设有析尘口，所述析尘口与所述第二集尘室的侧壁相 切，所述析尘口外侧设有粉尘收集腔(9)。
  7. 如权利要求6所述的过滤装置，其特征在于，所述粉尘收集腔(9)与所述第二集尘室(61)可拆卸连接，或者，所述粉尘收集腔(9)设有清灰口。
  8. 如权利要求2至4任一项所述的过滤装置，其特征在于，所述第一集尘室(21)和所述第二集尘室(61)的横截面相同。
  9. 如权利要求2至4任一项所述的过滤装置，其特征在于，所述第二集尘室(61)的后侧设有第三集尘室及第三过滤器，所述第三过滤器与所述出风口连通。
  10. 一种除尘设备，包括动力部件，其特征在于，还包括如权利要求2至9任一项所述的过滤装置，所述动力部件位于出风口内，气流进入所述过滤装置的过滤器后流向所述动力部件。
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