Abstract: An upright two-stage dust collector includes a base unit, a suction blower unit, a filter unit and a dust collecting unit. The suction blower unit has a suction blower body. The filter unit includes a filter body, a coarse particle dust filter cartridge disposed in the filter body, and a fine particle dust filter element disposed in the coarse particle dust filter cartridge. The fine particle dust filter element is coaxially inserted in the coarse particle dust filter cartridge. The air after the first dust collection is filtered by the fine particle dust filter element to perform the second dust collection. Through the combination of the above units, in addition to a two-stage dust collecting effect, the dust collector occupies less space and can be used conveniently.

Abstract: A dust collector with convenient loading and unloading dust collecting barrel includes a base plate fixed on an outer periphery of a bottom of an air guide cylinder, an operation unit whose end is pivotally arranged on the base plate, linking members disposed on said operation unit and connected to a dust collecting barrel lid located under the air guide tube. Accordingly, when a user lifts up the operation unit, the linking members move the dust collecting barrel lid upwards. The upward movement separates the dust collecting barrel lid from the dust collecting barrel, so the dust collecting barrel is easily detached. The action of swinging the operation unit swings down allows the linking members to move the dust collecting barrel lid downwards, so the dust collecting barrel lid closes the dust collecting barrel. Therefore, the user loads and unloads the dust collecting barrel quickly and conveniently.

Abstract: An assembled air cleaner includes an air blowing box, a plurality of first filter boxes that is stacked in a vertical direction and disposed above the air blowing box, and an air inlet box disposed on top of the topmost first filter box. At least one filter is provided inside the first filter boxes. Each first filter box has a bottom wall and a flange protruding upwardly around a peripheral edge of the bottom wall. The flange is configured to hold against a bottom of the filter in an airtight manner. A plurality of airtight members is provided on each first filter box and can be pressed against the filter, thereby improving filtering and dust collection effects greatly.

Abstract: A dust collector with convenient loading and unloading dust collecting barrel includes a base plate fixed on an outer periphery of a bottom of an air guide cylinder, an operation unit whose end is pivotally arranged on the base plate, linking members disposed on said operation unit and connected to a dust collecting barrel lid located under the air guide tube. Accordingly, when a user lifts up the operation unit, the linking members move the dust collecting barrel lid upwards. The upward movement separates the dust collecting barrel lid from the dust collecting barrel, so the dust collecting barrel is easily detached. The action of swinging the operation unit swings down allows the linking members to move the dust collecting barrel lid downwards, so the dust collecting barrel lid closes the dust collecting barrel. Therefore, the user loads and unloads the dust collecting barrel quickly and conveniently.

Abstract: An upright two-stage dust collector includes a base unit, a suction blower unit, a filter unit and a dust collecting unit. The suction blower unit has a suction blower body. The filter unit includes a filter body, a coarse particle dust filter cartridge disposed in the filter body, and a fine particle dust filter element disposed in the coarse particle dust filter cartridge. The fine particle dust filter element is coaxially inserted in the coarse particle dust filter cartridge. The air after the first dust collection is filtered by the fine particle dust filter element to perform the second dust collection. Through the combination of the above units, in addition to a two-stage dust collecting effect, the dust collector occupies less space and can be used conveniently.

Abstract: An assembled air cleaner comprises an air blowing box, a plurality of first filter boxes that are stacked in a vertical direction and disposed above the air blowing box, and an air inlet box disposed on top of the topmost first filter box. At least one filter is provided inside the first filter boxes. Each first filter box has a bottom wall and a flange protruding upwardly around a peripheral edge of the bottom wall. The flange is configured to hold against a bottom of the filter in an airtight manner A plurality of airtight members are provided on each first filter box and can be pressed against the filter, thereby improving filtering and dust collection effects greatly.

Abstract: A fixing device for the dust bag of a dust collector includes a dust collector provided with a wind guide box having its lower side formed with a stuff falling opening, which extends downward to form a ring body. The wind guide box has its outer circumference provided with two tightening units, and an annular frame is connected between the two tightening units and positioned beneath the ring body. The two tightening units can adjust the annular frame to be at a first position or at a second position able to quickly fix or disassemble the dust bag of a dust collector.

Abstract: A transverse secondary dust collector is to have a sealable housing transversely provided therein with a blower set, an air intake barrel and an air guide barrel. Thus, after outside dust is sucked into the air intake barrel, the dust will produce helical airflow at the inner wall of the air guide barrel. In the process of sucking in dust, heavy dust will reduce kinetic energy and naturally fall into the dust collecting barrel, while light dust will be attracted by the blower set and guided to get into the filter barrel, and after filtration, clean air will be exhausted to the outside. The blower set, the air intake barrel, the air guide barrel and the dust collecting barrel of the transverse secondary dust collector can be collectively installed in the housing, able to diminish the volume of the dust collector and lower noise.

Abstract: A fixing device for the dust bag of a dust collector includes a dust collector provided with a wind guide box having its lower side formed with a stuff falling opening, which extends downward to form a ring body. The wind guide box has its outer circumference provided with two tightening units, and an annular frame is connected between the two tightening units and positioned beneath the ring body. The two tightening units can adjust the annular frame to be at a first position or at a second position able to quickly fix or disassemble the dust bag of a dust collector.

Abstract: A transverse secondary dust collector is to have a sealable housing transversely provided therein with a blower set, an air intake barrel and an air guide barrel. Thus, after outside dust is sucked into the air intake barrel, the dust will produce helical airflow at the inner wall of the air guide barrel. In the process of sucking in dust, heavy dust will reduce kinetic energy and naturally fall into the dust collecting barrel, while light dust will be attracted by the blower set and guided to get into the filter barrel, and after filtration, clean air will be exhausted to the outside. The blower set, the air intake barrel, the air guide barrel and the dust collecting barrel of the transverse secondary dust collector can be collectively installed in the housing, able to diminish the volume of the dust collector and lower noise.

Abstract: A filter cylinder having a dust cleaning device of a dust collector is provided. The filter cylinder has a cylindrical outer frame. An HEPA filter is provided inside the filter cylinder. The inner wall of the filter is provided with a collar. A cleaning device is disposed in the filter cylinder. The cleaning device includes a bracket. Two ends of the bracket are each provided with a flap member corresponding to the inner wall of the collar. The cleaning device is rotatable in the filter cylinder, with the flap member to flap the collar and further to vibrate the filter, so that the dust adsorbed to the filter drops from the filter to enhance the structural strength of the filter and to prolong the service life of the filter.

Abstract: A dust collector provided with a shunt guide plate includes a main body, a filter drum, a dust collecting barrel and an induced draft device. A cover plate is fixed between the main body and the dust collecting barrel, having a central portion bored with an insert hole corresponding to the main body, and a guide plate is transversely disposed under the cover plate. Thus, the induced draft device is started to absorb airflow with dust into the main body and, when passing through the insert hole of the cover plate, the airflow will be stopped by the guide plate and forced to flow through two sides of the guide plate to form a shunt effect. Thus, when airflow gets into the dust collecting barrel, the dust in the dust collecting barrel will not be affected to rise, enhancing dust collecting effect of the dust collecting barrel.

Abstract: A handle having an airtightness function used for a casing of a negative pressure type dust collector is provided. Two pivot seats are fixed to a door of the casing and vertically aligned with each other. A rotating shaft is pivotally connected to the pivot seats. Two ends of the rotating shaft are provided with eccentric blocks, respectively. Two engaging blocks are located close to the outer periphery of the door and vertically aligned with each other. The eccentric blocks are engaged with the engaging blocks to exert a force to the door so that the door is closely attached to the casing, thereby enhancing the airtight effect of the casing and preventing the door from being deformed due to backwash and preventing the dust from flowing out through the gap between the door and the casing to cause secondary environmental pollution.

Abstract: A buckle mechanism of a dust collecting barrel of a two-stage dust collector is provided. The buckle mechanism is disposed on the two-stage dust collector, and includes a first retaining seat and a second retaining seat corresponding to one side of the dust collector, and a support unit is disposed on a barrel cover. The first retaining seat is pivotally connected with a linking unit. One end of the linking unit is connected to the support unit. The second retaining seat is pivotally connected with a control unit. The linking unit is driven to actuate through two connecting members. The control unit drives the linking unit to actuate. By the lever principle, the linking unit drives the barrel cover to move up and down so as to assemble and disassemble the dust collecting barrel quickly and conveniently.

Abstract: A buckle mechanism of a dust collecting barrel of a bag-type dust collector includes a first retaining seat and a second retaining seat. Two sides of the first retaining seat are provided with two first linking members. Two sides of the second retaining seat are provided with two second linking members. The first linking members and the second linking members are connected through two connecting rods. An operating rod is provided between the second linking members. A support unit is provided between the first linking members. The support unit is fixed to a barrel cover. The second linking members are driven to swing by the operating rod and the first linking members are linked so that the barrel cover is moved up and down to quickly complete the assembly and disassembly of a dust collecting barrel.

Abstract: A dust collector capable of recollecting the particulate dust is disclosed. The dust collector comprises a collector body having a dust collection tube, a dust collection barrel, a filter barrel which comprises a filter net and an air conduit with one end connected to the inner portion of the filter barrel and another end formed into an air outlet adaptor, a dust clean device and an air suction unit which drives the air with particulate dust to pass the filter net and a cover used to either close or open the air outlet adaptor. When the particulate dust has been accumulated on the filter net more than a preset volume, the dust collector will start to operate its clean maintenance process. The cover will be uncovered from the air outlet adaptor and one end of the dust collection tube will be fixed onto the air outlet adaptor.

Abstract: A filter cylinder having a dust cleaning device of a dust collector is provided. The filter cylinder has a cylindrical outer frame. An HEPA filter is provided inside the filter cylinder. The inner wall of the filter is provided with a collar. A cleaning device is disposed in the filter cylinder. The cleaning device includes a bracket. Two ends of the bracket are each provided with a flap member corresponding to the inner wall of the collar. The cleaning device is rotatable in the filter cylinder, with the flap member to flap the collar and further to vibrate the filter, so that the dust adsorbed to the filter drops from the filter to enhance the structural strength of the filter and to prolong the service life of the filter.

Abstract: A filter cylinder having a dust cleaning device of a dust collector is provided. The filter cylinder has a cylindrical outer frame. An HEPA filter is provided inside the filter cylinder. The inner wall of the filter is provided with a plurality of tabs arranged annularly. A cleaning device is disposed in the filter cylinder. The cleaning device includes a bracket. Two ends of the bracket are each provided with a flap member. The cleaning device is rotatable in the filter cylinder, with the flap member to flap the tab and further to vibrate the filter, so that the dust adsorbed to the filter drops from the filter to enhance the structural strength of the filter and to prolong the service life of the filter.

Abstract: A dust collector provided with a shunt guide plate includes a main body, a filter drum, a dust collecting barrel and an induced draft device. A cover plate is fixed between the main body and the dust collecting barrel, having a central portion bored with an insert hole corresponding to the main body, and a guide plate is transversely disposed under the cover plate. Thus, the induced draft device is started to absorb airflow with dust into the main body and, when passing through the insert hole of the cover plate, the airflow will be stopped by the guide plate and forced to flow through two sides of the guide plate to form a shunt effect. Thus, when airflow gets into the dust collecting barrel, the dust in the dust collecting barrel will not be affected to rise, enhancing dust collecting effect of the dust collecting barrel.