CN111844480B

CN111844480B - Dust collecting device

Info

Publication number: CN111844480B
Application number: CN202010647124.4A
Authority: CN
Inventors: 徐红菲; 周斌; 靳建超; 崔仲义; 王刚
Original assignee: Shandong Anhe Safety Technology Institute Co ltd
Current assignee: Shandong Anhe Safety Technology Institute Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-12-28
Anticipated expiration: 2040-07-07
Also published as: CN111844480A

Abstract

The invention discloses a dust collecting device, which comprises a shell, wherein two sliding grooves are formed in one side of the shell, cutting pieces for cutting raw stones are respectively arranged at the two sliding grooves, an angle adjusting piece is connected to one side of each cutting piece, the angle adjusting piece is connected into the shell, a driving piece is connected to the top of the angle adjusting piece in a propping and moving mode, the driving piece is connected with the shell, a collecting piece for collecting raw stone dust is connected to the top of the shell, and two ends of the collecting piece are positioned at the tops of the two cutting pieces. The jade dust is absorbed in time, so that the jade dust is prevented from adhering to the cutting piece.

Description

Dust collecting device

Technical Field

The invention relates to the technical field of dust collecting devices, in particular to a jade raw stone cutting dust collecting device.

Background

The jade raw stone is jade which is not processed and carved, has larger conception, design and creation space, generally speaking, the jade raw stone can be roughly divided into jade seed materials, mountain flowing water and the like, the interior of the jade is opened, a felt-shaped fiber structure and a plush-shaped fiber structure are mostly shown, no cavity exists, the identification points of the jade raw stone are density and hardness, and the size of the shape and flaws and the like, after the jade raw stone is mined, the raw stone needs to be cut for mining the jade from the raw stone, and the raw stone part on the surface of the jade raw stone is cut out.

When the existing jade raw stone is cut, a cutting machine is adopted for cutting, the existing cutting machine for cutting the jade raw stone in the market is a single cutting piece, when the single cutting piece is adopted for cutting, the cutting damage of the jade is easily caused due to large cutting area, in the cutting process, the cutting pieces of the single piece are contacted with the raw stone, the dust of the cut raw stone is easily adhered to the cutting pieces of the single piece, the cutting area of the cutting pieces of the single piece is overlarge, meanwhile, the raw stone dust is scattered at the cutting gap, so that the single cutting piece is blocked, when the jade raw stone is cut by the single cutting piece, the cutting gap is enlarged, the surface damage of the jade is caused, meanwhile, the cutting of the single cutting piece needs to completely cut the cutting piece into the jade, so that the contact area between the cutting piece adhered with the original stone dust and the cut jade section is too large, and the protection of the surface of the jade is not facilitated.

Disclosure of Invention

The present invention is directed to a dust collecting device to solve the above problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme: dust collection device, which comprises a housin, be equipped with two spouts on casing one side, and two spout punishments do not are equipped with the cutting piece of the former stone of cutting, cutting piece one side is connected with the angle modulation piece of adjusting cutting piece position, and in the angle modulation piece joint casing, the driving piece that the angle modulation piece top is moved and is connected with the motion of drive cutting piece, and the driving piece is connected with the casing, the casing top is connected with the collection piece of collecting the former stone dust, and collects a both ends and be located two cutting piece tops respectively, is favorable to cutting the former stone through two angularly adjustable cutting pieces, reduces the cutting area to the former stone, is convenient for in time absorb the former stone dust after the cutting through the collection piece of establishing simultaneously.

Preferably, angle modulation spare is including connecting the roll axis on the cutting piece, roll axis one end slides and runs through the spout, and roll axis one end department is connected with the fixed block, the fixed block bottom is connected with the rotation motor, the inside bottom of casing is equipped with two arcs, and two arc inside walls departments of arcs are connected with the tooth's socket, the inside rotating gear that is equipped with of arc, and rotating gear and tooth's socket meshing, the last carriage release lever that is connected with of rotating gear, carriage release lever one end is connected with the rotation motor output, and carriage release lever other end sliding connection is inside the arc, the fixed block top is connected with the mounting panel, and the mounting panel is connected with the driving piece, is convenient for adjust the contained angle position between two cutting pieces.

Preferably, the driving piece is including installing the driving motor at the casing top, driving motor output connection has the drive shaft, and the drive shaft slides and runs through the casing top, two drive gears have been cup jointed in the drive shaft outside, and all are equipped with the driving chain in two drive gear outsides, drive gear and driving chain meshing, the driving chain is kept away from drive gear one end meshing and is had driven gear, and is connected with the pivot on the driven gear, the mounting panel is connected in the pivot outside, the pivot is connected with first helical gear, the roll axis outside is connected with the second helical gear, and second helical gear and first helical gear intermeshing, is convenient for drive two cutting pieces simultaneously through driving motor and cuts the rotation.

Preferably, collect the piece including installing the collection shell at the casing top, and collect the shell and be located driving motor one side, it has the hose to collect the shell both sides respectively intercommunication, and hose one end intercommunication has the aspiration pump, aspiration pump one end intercommunication has the hard tube, the one end that the hose was kept away from to the hard tube is connected with the separation shell, and the separation shell parcel is in the cutting piece outside, the separation shell bottom is connected with the roll axis, the hard tube is connected with the guide ring with separation shell intercommunication department, is convenient for adsorb the former stone dust under less cutting environment.

Preferably, collect the shell outside and be connected with the spray bottle, and the intercommunication has two raceway on the spray bottle, the raceway slides and runs through and collects the conch wall, and the intercommunication has the shower nozzle on the raceway, is convenient for adsorb the former stone dust in collecting the shell through water.

Preferably, it is connected with agitator motor to collect shell one side, the agitator motor output is connected with the axis of rotation, and axis of rotation one end is connected in collecting shell inner wall department, the rolling disc is connected to axis of rotation both ends department, and two rolling discs are located and collect the shell, two be connected with a plurality of puddlers between the rolling disc, be favorable to stirring the former stone dust of collecting in collecting the shell, make former stone dust and water carry out the intensive contact and mix.

Preferably, two sliding grooves are formed in the top end of the inside of the shell, and one ends of the two rotating shafts are respectively connected to the insides of the two sliding grooves in a sliding mode, so that the sliding stability of the tops of the rotating shafts is improved conveniently.

Preferably, the arc wall bottom is equipped with spacing recess, the carriage release lever bottom is connected with the stopper, and stopper sliding connection is in spacing recess department. The stability of sliding of the bottom of the movable rod is improved.

Compared with the prior art, the invention has the beneficial effects that:

when the jade raw stone is cut, the shell is placed at the position of the jade to be cut, the cutting angle between the two cutting pieces is adjusted through the angle adjusting piece, so that a smaller cutting area can be conveniently selected, the two cutting pieces are simultaneously driven through the driving piece, the two cutting pieces are conveniently driven to cut the jade raw stone, the jade dust cut off from the tops of the two cutting pieces is adsorbed by starting the collecting piece arranged in the cutting process, the cutting area of the existing cutting machine is reduced, meanwhile, the jade dust at the cutting position is timely absorbed, the jade dust is prevented from adhering to the cutting pieces, and the cut jade surface is conveniently protected.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the backside structure of the present invention;

FIG. 3 is a schematic view of the present invention in partial cutaway configuration;

FIG. 4 is a schematic view of the structure of FIG. 3 after the cutting blade is removed;

FIG. 5 is a schematic structural view of FIG. 4 with the drive motor removed;

FIG. 6 is a schematic view of an angle adjustment member according to the present invention;

FIG. 7 is a schematic view of the structure of the arc-shaped slot of the present invention;

FIG. 8 is a schematic view of the present invention at the drive shaft;

FIG. 9 is a schematic view of the collector of the present invention;

FIG. 10 is a schematic view of the internal structure of the collecting case according to the present invention;

FIG. 11 is a schematic view of the overall cutting position according to the present invention;

fig. 12 is a partial sectional structure view of fig. 11.

In the figure: 1-a shell; 2-a chute; 3-cutting the slices; 4-an angle adjustment member; 5-a driving member; 6-a collecting member; 7-a roll axis; 8, fixing blocks; 9-rotating the motor; 10-an arc-shaped groove; 11-gullet; 12-a rotating gear; 13-a moving rod; 14-a support plate; 15-driving the motor; 16-a drive shaft; 17-a drive gear; 18-a drive chain; 19-a driven gear; 20-a rotating shaft; 21-collecting the shell; 22-a hose; 23-an air pump; 24-hard pipe; 25-a separation housing; 26-a guide ring; 27-spraying water bottle; 28-water conveying pipe; 29-a spray head; 30-a stirring motor; 31-a rotating shaft; 32-a rotating disc; 33-a stirring rod; 34-a sliding groove; 35-a limiting groove; 36-a limiting block; 37-a first bevel gear; 38-second bevel gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-12, the present invention provides a technical solution: the dust collecting device is mainly designed in the scheme aiming at solving the problems that when the jade raw stone is cut, the cutting area of the existing cutting piece 3 is large, the generated dust is inconvenient to absorb, the cutting piece 3 and the cut jade surface are adhered to each other, and the damage to the cut jade surface is easily caused, the design in the scheme comprises a shell 1, wherein the shell 1 is designed to be semicircular, so that the friction between the shell 1 and the raw stone is reduced in the cutting process, meanwhile, a curved handle is arranged at the back of the shell 1, when a person cuts the jade raw stone, the shell 1 can be lifted by holding the handle, two sliding grooves 2 are arranged on one side of the shell 1, because one side of the shell 1 in the scheme is semicircular, the sliding grooves 2 are arc-shaped surfaces, the cutting pieces 3 for cutting the raw stone are respectively arranged at the two sliding grooves 2, one side of each cutting piece 3 is connected with an angle adjusting piece 4 for adjusting the positions of the cutting pieces 3, and in angle modulation 4 connects

casing

1, 4 tops of angle modulation move driving piece 5 that is connected with the motion of drive cutting piece 3, and driving piece 5 is connected with

casing

1, 1 top of casing is connected with the collection piece 6 of collecting the former stone dust, and collects 6 both ends and lie in two cutting pieces 3 tops respectively.

When cutting the jade raw stone, a cutting person can select a cutting angle, the cutting angle is adjusted by driving the angle adjusting piece 4 arranged, meanwhile, one end of the angle adjusting piece 4 is connected with the cutting blade 3, the cutting blade 3 is convenient to drive to rotate and adjust together during the adjusting process of the angle adjusting piece 4, the two cutting blades 3 are convenient to adjust to proper angle positions, the jade raw stone is convenient to cut by the cutting person from the adjusted angle positions, after the angle of the cutting blade 3 is adjusted, the arranged driving piece 5 is started at the moment to conveniently drive the arranged cutting blade 3 to cut the jade raw stone, meanwhile, when cutting, the condensed collecting piece 6 is started, because the two ends of the collecting piece 6 are respectively positioned at the top positions of the two cutting blades 3, the dust of the cut raw stone is convenient to absorb from the top positions of the cutting blades 3, reduce former stone dust and adhere in cutting piece 3 department, avoid simultaneously that the former stone dust causes the destruction to the jade face of cutting.

In the scheme, the angle adjusting part 4 comprises a rolling shaft 7 connected to the cutting blade 3, wherein the cutting blade 3 is used for cutting the surface of jade, a cutting tool bit is arranged on the outer ring part of the cutting blade 3, meanwhile, the inner ring part can be made of stainless steel, so that the service life of the cutting blade 3 is prolonged, one end of the rolling shaft 7 is slidably penetrated through the chute 2, one end of the rolling shaft 7 is connected with a fixed block 8, the fixed block 8 is arranged in the shell 1, the fixed block 8 is used for connecting the rolling shaft 7 with the moving rod 13 and can be made of injection molding materials, the forming of the cutting blade is convenient, the scheme is designed into a square shape, the stability of the fixed block 8 is mainly improved, the bottom of the fixed block 8 is connected with a rotating motor 9, the bottom end in the shell 1 is provided with two arc-shaped grooves 10, the inner walls of the two arc-shaped grooves 10 are connected with tooth grooves 11, a rotating gear 12 is arranged in the arc-shaped grooves 10, the rotating gear 12 is meshed with the tooth socket 11, the rotating gear 12 is connected with a moving rod 13, one end of the moving rod 13 is connected with the output end of a rotating motor 9, the other end of the moving rod 13 is connected inside the arc-shaped groove 10 in a sliding manner, the top of the fixed block 8 is connected with a support plate 14, the support plate 14 is connected with the driving piece 5, the support plate 14 is an L-shaped plate, one end of the support plate is connected with the top of the fixed block 8, the other end of the support plate 14 is in a ring sleeve shape, the outer side of the rotating shaft 20 is provided with a concave shape, the ring sleeve shape is conveniently sleeved at the concave position of the rotating shaft 20, the ring sleeve is conveniently and stably sleeved at the outer side of the rotating shaft 20, the driving piece 5 comprises a driving motor 15 arranged at the top of the shell 1, the output of the driving motor 15 is connected with a driving shaft 16, the driving shaft 16 penetrates through the top of the shell 1 in a sliding manner, and the outer side of the driving shaft 16 is sleeved with two driving gears 17, and two drive gear 17 outsides all are equipped with drive chain 18, drive gear 17 and drive chain 18 meshing, drive gear 17 one end meshing is kept away from to drive gear 18 has driven gear 19, and is connected with pivot 20 on the driven gear 19, the mounting panel 14 is connected in the pivot 20 outside, pivot 20 is connected with first helical gear 37, the roll shaft 7 outside is connected with second helical gear 38, and second helical gear 38 and first helical gear 37 intermeshing, is convenient for drive two cutting pieces 3 simultaneously through driving motor 15 and cuts the rotation.

The specific working process is as follows: when cutting the jade stone, at this time, the cutting personnel selects a smaller cutting angle according to the cutting requirement, the cutting personnel can start the rotating motor 9, the moving rod 13 starts to rotate under the rotating action of the rotating motor 9, the rotating gear 12 is connected to the outer side of the moving rod 13, under the rotating action of the moving rod 13, the rotating gear 12 rotates along the tooth socket 11, and simultaneously, the limiting action of the arc-shaped groove 10 is provided, so that the moving rod 13 can be rotated by a corresponding angle, after the two moving rods 13 are adjusted to an included angle, at this time, by stopping the rotation of the rotating motor 9, under the meshing action of the tooth socket 11 and the rotating gear 12, the moving rod 13 is convenient to be limited at a required angle, when the angle position is adjusted by rotating the motor 9, because the support plate 14 is connected with the fixed block 8, after the fixed block 8 is moved, the support plate 14 drives the rotating shaft 20 connected with the support plate to move at an appropriate angle position, here, the rotating shaft 20 is connected with a driven gear 19, the driven gear 19 passes through the transmission chain 18 and the driving shaft 16, after the rotating motor 9 drives the support plate 14 to rotate, at this time, the transmission chain 18 is adjusted to a corresponding angle position, after the angle adjustment is finished, at this time, by starting the driving motor 15, under the driving action of the driving motor 15, the driving shaft 16 starts to rotate, at the same time, because the driving gear 17 is sleeved outside the driving shaft 16, under the rotating action of the driving shaft 16, the driving gear 17 is conveniently driven to rotate, under the action of the driving gear 17, the transmission chain 18 drives the driven gear 19 to rotate, at the same time, the rotating shaft 20 is connected to the driven gear 19, under the driving of the driven gear 19, the rotating shaft 20 starts to rotate, at the same time, because the first helical gear 37 is sleeved outside the rotating shaft 20, under the action of the rotating shaft 20, the first helical gear 37 drives the second helical gear 38 engaged therewith to start to rotate, because second helical gear 38 is connected at roll shaft 7, be convenient for drive roll shaft 7 and rotate to rotate when realizing two cutting blades 3, two cutting blades 3 are convenient for adjust to suitable cutting angle department under rotating motor 9 adjustment simultaneously, reduce the cutting area, avoid the influence of the former stone dust of cutting to great cutting blade 3.

In the scheme, the collecting part 6 comprises a collecting shell 21 arranged at the top of the shell 1, the collecting shell 21 is positioned on one side of the driving motor 15, two sides of the collecting shell 21 are respectively communicated with a hose 22, one end of the hose 22 is communicated with an air suction pump 23, one end of the air suction pump 23 is communicated with a hard tube 24, one end of the hard tube 24, far away from the hose 22, is connected with a separating shell 25, the separating shell 25 is wrapped on the outer side of the cutting blade 3, the bottom of the separating shell 25 is connected with a rolling shaft 7, a guide ring 26 is connected at the communication position of the hard tube 24 and the separating shell 25, in the cutting process, by starting the air suction pump 23, under the pumping action of the air suction pump 23, negative pressure is formed at the position of the hard tube 24, when the cutting blade 3 cuts the raw stone, the cut raw stone dust is guided into the position of the separating shell 25 along with the cutting blade 3, and the contact between the raw stone dust and the cut jade surface is reduced, at the same time, after the negative pressure is formed in the hard pipe 24, the cut raw stone dust is guided into the hard pipe 24 from the guide ring 26, and simultaneously, the raw stone dust is guided into the collecting shell 21 from the hose 22 for collection.

In this scheme the collection shell 21 outside is connected with spray bottle 27, and the intercommunication has two raceway 28 on spray bottle 27, raceway 28 slides and runs through collection shell 21 wall, and the intercommunication has shower nozzle 29 on raceway 28, when aspiration pump 23 twitches former stone dust, former stone dust falls into and collects shell 21 department, because the former stone dust under the cutting has certain aridity, former stone dust floats easily, pass through spray bottle 27 this moment, 27 inside liquid that is equipped with at spray bottle, import to raceway 28 department with liquid through spray bottle 27, spray shell 21 department with liquid through shower nozzle 29 simultaneously, be convenient for adsorb dry former stone dust, be convenient for absorb more former stone dust.

In the scheme, one side of the collecting shell 21 is connected with a stirring motor 30, the output end of the stirring motor 30 is connected with a rotating shaft 31, and one end of the rotating shaft 31 is connected to the inner wall of the collecting case 21, the rotating discs 32 are connected to both ends of the rotating shaft 31, and two rotating disks 32 are positioned in the collecting case 21, a plurality of agitating bars 33 are connected between the two rotating disks 32, when the raw stone dust is pumped to the position of the collecting shell 21 by the air pump 23, the raw stone dust and the liquid are mixed and adsorbed, at this time, in order to avoid excessive adhesion of the adsorbed raw stone dust, by starting the stirring motor 30, under the power output by the stirring motor 30, the rotating shaft 31 starts to drive the two rotating discs 32 to rotate, and simultaneously, as the plurality of stirring rods 33 are connected on the rotating discs 32, under the condition that the rotating disc 32 rotates, the adsorbed raw stone is convenient to stir, and excessive bonding formed after the dust of the raw stone and water are adsorbed is avoided.

In the present embodiment, two sliding grooves 34 are formed at the top end inside the housing 1, and one ends of the two rotating shafts 20 are respectively slidably connected inside the two sliding grooves 34, so that when the cutting angle is adjusted, the rotating shafts 20 slide along the sliding grooves 34, which is convenient for maintaining the sliding stability of the rotating shafts 20.

In this scheme arc wall 10 bottom is equipped with spacing recess 35, carriage release lever 13 bottom is connected with stopper 36, and stopper 36 sliding connection is in spacing recess 35 department, and stopper 36 at this place can design for the circular sheet, and the stopper 36 of being convenient for rotates in spacing recess 35 department, through the limiting displacement who designs spacing recess 35 and stopper 36 in this scheme, is convenient for keep the rotation stability of carriage release lever 13.

In the scheme, the rotating motor 9 is preferably YDW0.45KW-4, the driving motor 15 is preferably YE2-112M-4, the air suction pump 23 is preferably PYP520B, and the stirring motor 30 is preferably FT-300-FA.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Dust collection device, including casing (1), its characterized in that: the cutting device is characterized in that two sliding grooves (2) are formed in one side of the shell (1), cutting blades (3) for cutting raw stones are respectively arranged at the two sliding grooves (2), one side of each cutting blade (3) is connected with an angle adjusting piece (4) for adjusting the position of each cutting blade (3), the angle adjusting pieces (4) are connected into the shell (1), the tops of the angle adjusting pieces (4) are connected with driving pieces (5) for driving the cutting blades (3) to move, the driving pieces (5) are connected with the shell (1), each angle adjusting piece (4) comprises a rolling shaft (7) connected onto the cutting blades (3), one end of each rolling shaft (7) penetrates through the corresponding sliding groove (2) in a sliding mode, one end of each rolling shaft (7) is connected with a fixing block (8), the bottom of each fixing block (8) is connected with a rotating motor (9), two arc-shaped grooves (10) are formed in the bottom inside the shell (1), and the inner walls of the two arc-shaped grooves (10) are connected with tooth grooves (11), rotating gears (12) are arranged in the arc-shaped grooves (10), the rotating gears (12) are meshed with the tooth grooves (11), moving rods (13) are connected to the rotating gears (12), one ends of the moving rods (13) are connected with the output end of a rotating motor (9), the other ends of the moving rods (13) are connected to the inner parts of the arc-shaped grooves (10) in a sliding manner, support plates (14) are connected to the tops of the fixed blocks (8), the support plates (14) are connected with a driving piece (5), the top of the shell (1) is connected with a collecting piece (6) for collecting crude stone dust, the two ends of the collecting piece (6) are respectively located at the tops of the two cutting pieces (3), the collecting piece (6) comprises a collecting shell (21) arranged at the top of the shell (1), and the two sides of the collecting shell (21) are respectively communicated with hoses (22), and one end of the hose (22) is communicated with the air pump (23), one end of the air pump (23) is communicated with the hard pipe (24), one end of the hard pipe (24), which is far away from the hose (22), is connected with the separating shell (25), the separating shell (25) is wrapped outside the cutting blade (3), the bottom of the separating shell (25) is connected with the rolling shaft (7), the communicating part of the hard pipe (24) and the separating shell (25) is connected with the guide ring (26), the outer side of the collecting shell (21) is connected with the water spraying bottle (27), the water spraying bottle (27) is communicated with two water conveying pipes (28), the water conveying pipes (28) slidably penetrate through the wall of the collecting shell (21), the water conveying pipes (28) are communicated with the spray head (29), one side of the collecting shell (21) is connected with the stirring motor (30), the output end of the stirring motor (30) is connected with the rotating shaft (31), and one end of the rotating shaft (31) is connected to the inner wall of the collecting shell (21), the rotating shafts (31) are connected with the rotating discs (32) at two ends, the two rotating discs (32) are located in the collecting shell (21), and a plurality of stirring rods (33) are connected between the rotating discs (32).

2. A dust collecting device according to claim 1, wherein: the driving piece (5) comprises a driving motor (15) arranged at the top of the shell (1), a collecting shell (21) is positioned on one side of the driving motor (15), the output of the driving motor (15) is connected with a driving shaft (16), the driving shaft (16) penetrates through the top of the shell (1) in a sliding manner, two driving gears (17) are sleeved on the outer side of the driving shaft (16), a transmission chain (18) is arranged on the outer sides of the two driving gears (17), the driving gears (17) are meshed with the transmission chain (18), one end, far away from the driving gears (17), of the transmission chain (18) is meshed with a driven gear (19), the driven gear (19) is connected with a rotating shaft (20), the support plate (14) is connected on the outer side of the rotating shaft (20), the rotating shaft (20) is connected with a first helical gear (37), and the outer side of the rolling shaft (7) is connected with a second helical gear (38), and the second bevel gear (38) and the first bevel gear (37) are meshed with each other.

3. A dust collecting device according to claim 2, wherein: two sliding grooves (34) are formed in the top end of the interior of the shell (1), and one ends of the two rotating shafts (20) are respectively connected to the interiors of the two sliding grooves (34) in a sliding mode.

4. A dust collecting device according to claim 1, wherein: arc wall (10) bottom is equipped with spacing recess (35), carriage release lever (13) bottom is connected with stopper (36), and stopper (36) sliding connection is in spacing recess (35) department.