Dust remover

Abstract

The utility model relates to the field of industrial dust collecting machinery, in particular to a dust remover which comprises a box body and a dust collecting mechanism, a bottom plate is arranged at the bottom of the inner side of the box body, and the bottom plate is basically a plane; the dust collecting mechanism comprises a dust scraping device arranged above the bottom plate, the dust scraping device comprises a scraping plate, a limiting block and a driver, and the driver drives the scraping plate to move forwards and backwards on the bottom plate; when the scraping plate moves forwards, the limiting block limits the scraping plate to be in a first state, and dust can be pushed to move forwards; when the scraping plate moves backwards, the limiting block limits the scraping plate to be in a second state, and a gap through which dust can pass is formed between the scraping plate and the bottom plate. Through the arrangement of the bottom flat plate and the cooperation of the dust pushing mechanism, the overall height of the dust remover is reduced, and the dust discharging efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of industrial dust collecting machinery, in particular to a dust collector. Background Art

[0002] Industrial dust collectors are industrial dust collection equipment used for industrial purposes to collect and absorb medium particles, dust smoke, oil and water, etc. generated during production, operation, and transportation. Dust removal equipment is very important for manufacturing industries that produce waste particles or fiber materials. When the dust collector is in use, a bag is usually used to block the dust in the dust collector and collect it. In order to improve the dust removal effect and efficiency, the density and length of the bag setting are very important. Due to the long bag setting of the existing dust removal equipment, a dust suction device must be set above the bag, and a dust storage and dust collection structure must be set below the bag. The appearance setting of the dust collector is very large. For example, the "lightweight dust special dust collector" disclosed in the Chinese appearance design CN306580111S is generally more than 4m high and difficult to transport on roads with a height limit of 5m. Therefore, the transportation and installation of the dust collector are very inconvenient.

[0003] The applicant found that the existing dust collector, such as the "a dust removal device" disclosed in the Chinese invention patent CN112535916A, has a V-shaped storage bin A16 at the bottom of the dust collector housing A1, and a screw conveying device A17 is provided at the bottom of the V-shaped storage bin A16. Although the V-shaped storage bin can collect materials well and can convey dust well in conjunction with the screw conveying device, it increases the overall height of the dust collector. Moreover, the V-shaped storage bin can only be effectively conveyed after a certain amount of dust is accumulated, and the dust is soft and easily causes dusting, which reduces the overall efficiency of the dust collector. Utility Model Content

[0004] In view of one or more problems existing in the above-mentioned existing dust collectors, the utility model provides a dust collector, which reduces the overall height of the dust collector and improves the dust removal efficiency through the setting of a bottom flat plate and the cooperation of a dust pushing mechanism.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A dust collector comprises a box body and a dust collecting mechanism, wherein a bottom plate is provided at the bottom of the inner side of the box body, and the bottom plate is basically flat; the dust collecting mechanism comprises a dust scraping device arranged above the bottom plate, and the dust scraping device comprises a scraper, a limit block and a driver, and the driver drives the scraper to move forward and backward on the bottom plate; when the scraper moves forward, the limit block limits the scraper to a first state, which can push the dust to move forward; when the scraper moves backward, the limit block limits the scraper to a second state, and there is a gap between the scraper and the bottom plate through which dust can pass.

[0007] In the utility model, the bottom plate is set to be a basic plane, replacing the V-shaped storage bin in the existing design, so that the overall height of the dust collector can be reduced by 40-60 cm, greatly reducing the height of the dust collector box, which is convenient for transportation and installation. The dust is effectively gathered by the cooperation of the dust scraping device and the bottom plate. Compared with the spiral conveying device, the scraper has a higher efficiency in conveying dust and can effectively gather the dust in the box.

[0008] Preferably, the first state is that the scraper is substantially perpendicular to the bottom plate or the lower end of the scraper is substantially perpendicular to the bottom plate; the second state is that the angle between the scraper and the bottom plate is an acute angle, or the end of the scraper is substantially parallel to the bottom plate.

[0009] The utility model has a scraper that pushes materials alternately in two states, has a good dust transfer effect, and occupies a small vertical space. The two states are limited by a limit block, the structure is simple, and the problems of failure caused by the dust environment are avoided. In the first state, the scraper is vertical or the end is vertical, which can be more efficient and can be set to scrape the bottom plate to move the dust, and the second state allows the scraper to avoid or avoid as much of the dust as possible when returning.

[0010] Preferably, a driving shaft is provided on the upper part of the scraper, rollers are provided at both ends of the driving shaft, a lever is provided opposite to the scraper, the driver drives the lever to move the scraper to rotate around the driving shaft, and the rotation angle is limited by a limit block.

[0011] In the utility model, the arrangement of the driving shaft increases the structural strength of the scraper as a whole, and the scraper is arranged on one side of the driving shaft for easy rotation. Rollers are arranged at both ends of the driving shaft to drive the material to be pushed or returned. The arrangement of the lever utilizes the principle of a lever to drive the scraper to rotate around the driving shaft at a certain angle. It can also serve as a connecting structure of the driver.

[0012] Preferably, the dust scraping device comprises an upper connecting rod and a plurality of the scraping plates arranged at intervals, and the upper connecting rod is hingedly connected to the shifting rods corresponding to the plurality of the scraping plates.

[0013] In the utility model, a plurality of scrapers are arranged at intervals, so that the moving distance of each scraper is reduced, the driving is more convenient, and the utility model can adapt to a longer dust collector box. The connection of the upper connecting rod enables the plurality of scrapers to move synchronously, thereby increasing the coordination of the scrapers.

[0014] Preferably, the lever is extended to form a connecting arm, the driver is hingedly connected to the connecting arm, driving the connecting arm to drive the upper connecting rod and the scraper to move, and the limit block is arranged on the upper connecting rod, located on one side of the connecting arm.

[0015] In the utility model, the connecting arm can increase the lever effect and can drive the entire upper connecting rod to rotate and move, and the upper connecting rod drives a plurality of scrapers to rotate and move. The limit block is arranged on the upper connecting rod to respectively contact the connecting arm and the lever to limit the rotation angle of the scraper. The limit block is simple to arrange and has a stable limiting effect. The lever is extended to form the connecting arm, which can be an integral structure or can be formed by fastening, welding, etc.

[0016] Preferably, the roller is a silicone rubber roller. The silicone rubber roller has a suitable friction force, so that the scraper can be turned over with the roller as a fulcrum, and can roll to drive the scraper to move, and is not affected by the dust environment.

[0017] Preferably, the driver comprises a cylinder and a piston rod, the cylinder is hingedly fixed on the box, and the extended end of the piston rod is hingedly connected to the connecting arm. In the utility model, the driver selects an existing drive such as a cylinder, an oil cylinder, an electromagnetic cylinder, etc., and can work in a dusty environment. The driver is hingedly fixed to the box, can rotate upward, and has a good coordination with the connecting arm, so as to facilitate the rotation and forward and backward movement of the scraper.

[0018] Preferably, the lever and the scraper form an angle A, and the angle A is 165°~135°, preferably 150°; a plastic plate is provided at the lower end of the scraper, and the plastic plate and the upper end of the scraper have an angle B, and the angle B is 10°~20°, preferably 15°. In the utility model, the scraper and the lever are arranged at an angle so that when the scraper is in two states, the hinges of the lever are at the same height, that is, the lever is symmetrical on the vertical direction line passing through the center of the circle, and at this time, the distance between the scraper and the bottom plate is the smallest or largest. When the angle is set at the lower end of the scraper, a tail lift can occur during the return journey, that is, the plastic plate is basically parallel to the bottom plate, and the distance is the largest at this time. The plastic plate can scrape dust more cleanly and can also avoid collision of the scraper caused by blockage or foreign matter.

[0019] Preferably, the driver, the upper connecting rod and the connecting arm are symmetrically arranged on both sides of the box body, guide rails are respectively arranged under the rollers, and the guide rails are respectively fixed on the side walls and / or the bottom plate of the box body, and the two ends of the driving shaft are rotatably connected to the lower connecting rod, and a support rod is arranged between the lower connecting rod or the upper connecting rod, the lower connecting rod or the upper connecting rod and the support rod form a rectangular structure, and the lower connecting rod, the upper connecting rod and the shift rod form a connecting rod structure.

[0020] In the utility model, the upper connecting rod and the lower connecting rod are arranged to make the structure more stable and the scraper actions are synchronized.

[0021] Preferably, the dust collection mechanism also includes a dust discharge device and a dust collecting trough arranged at the bottom front end of the box body, the dust discharge device includes a dust collecting auger and a dust outlet, the dust collecting auger includes positive auger blades and reverse auger blades arranged on both sides of the main shaft, and a stirring blade in the middle of the main shaft, the dust collecting auger is arranged on the upper side of the dust collecting trough, and the dust outlet is arranged on the upper side of the stirring blade, the positive auger blades and reverse auger blades gather the dust pushed by the scraper to the stirring blade, the stirring blade raises the dust to the dust outlet, and the dust is sent out of the box through the dust outlet.

[0022] In the utility model, the scraper pushes the dust into the dust collecting trough, collects it through the dust collecting auger, and sends it out through the dust outlet. The dust collecting auger is arranged at the end of the box body, and the dust collecting trough is arranged at the bottom front end of the box body. The dust collecting trough does not need to be designed to be very deep, as long as part of the auger blades are deeply inserted. Therefore, the dust collecting auger and the dust collecting trough of the patent cooperate, and the height of the box body will not be increased. At the end of the box body, the side wall of the box body can be used at the same time, and the dust collecting and dust discharging effects are good. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the side cross-sectional structure of a dust collector in the utility model in the state of scraping dust the farthest;

[0024] Figure 2 is a schematic structural diagram of the first state of the dust scraping device;

[0025] Figure 3 The side section structure of the dust collector box in the dust scraping reset state;

[0026] Figure 4 is a schematic diagram of the structure of the dust scraping device in the second state;

[0027] Figure 5 for Figure 1 A schematic diagram of the partially enlarged structure of the middle C part;

[0028] Figure 6 for Figure 1 The schematic diagram of the partial enlarged structure of the middle D part; Figure 7 It is a schematic diagram of the side view of the scraper and the matching structure;

[0029] Figure 8 It is a schematic diagram of the local structure of the scraper and the bottom plate;

[0030] Fig. 9 A schematic diagram of the front end cross-sectional structure of a dust collector box;

[0031] Fig.10 It is a schematic diagram of the structure when looking down at the bottom of the box.

[0032] The numbers in the figure are as follows:

[0033] 10-box body 11-air inlet channel, 111-air inlet inner port, 12-outlet channel, 121-air outlet inner port, 13-bottom plate, 14-guide rail;

[0034] 20-dust filter, 21-filter bag, 22-pulse valve air distributor;

[0035] 30-dust collecting mechanism, 31-dust scraping device, 311-scraper, 312-driving shaft, 313-roller, 314-limiting block, 315-plastic plate, 32-dust discharging device, 321-dust collecting auger, 3211-positive auger blade, 3212-reverse auger blade, 3213-main shaft, 3214-mixing blade, 322-dust outlet, 33-dust collecting tank, 34-driver, 341-cylinder body, 342-piston rod, 343-articulated seat, 344-bracket, 35-shift lever, 351-connecting arm, 36-upper connecting rod, 37-articulated shaft, 38-support rod, 39-lower connecting rod;

[0036] 4-First state;

[0037] 5-Second state. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more, unless otherwise clearly defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. Example

[0043] like Figure 1 ,3,As shown in 10, a dust collector comprises a relatively sealed dust removal box 10, a dust filter 20 arranged in the box 10, and a dust collection mechanism 30 arranged at the bottom of the inner side of the box 10. The box 10 is provided with an air inlet channel 11 for dusty air to enter and an outlet channel 12 for purified air. The air inlet channel 11 and the outlet channel 12 are respectively provided with an air inlet inner port 111 and an air outlet inner port 121 in the box. A dust filter 20 is arranged between the air inlet inner port 111 and the air outlet inner port 121. Dust air passes through the air inlet inner port 111 - dust filter 20 - air outlet inner port 121, and the purified air is discharged. Dust is filtered by the dust filter 20. Common industrial dust filters 20 include a number of evenly distributed filter bags 21. Dust is filtered by the bags 21 and adheres to the outside of the bags 21 or falls into the bottom of the box 10. Part of the attached dust is blown off the bag through the pulse valve air distributor 22 and finally falls into the bottom of the box body 10.

[0044] The bottom of the inner side of the box body 10 is provided with a bottom plate 13, which is basically a plane, but there is no high requirement for flatness and inclination angle. The dust collection mechanism 30 can collect dust on it, and the plane setting can save a large space relative to the V-shaped bottom surface, especially in terms of height. The dust collection mechanism 30 includes a dust scraping device 31 and a dust discharge device 32. The dust scraping device 31 includes a scraper 311, which is arranged above the bottom plate 13, and scrapes the dust on the bottom plate 13 into the dust collecting groove 33 provided at the front end of the dust scraping device 31 through reciprocating motion. The dust collecting groove 33 is a groove-shaped structure that is arranged horizontally and concave downward. Generally, at the end of the box body 10 that is far away from the air inlet inner port 111, the air flow in this area is relatively stable. Of course, another embodiment is that the dust collecting groove 33 is also arranged in the middle position of the bottom of the box body 10, and the dust scraping device 31 is arranged on both sides of the dust collecting groove 33, and the scraper scrapes the dust into the dust collecting groove 33. The dust removal device 32 sends the accumulated dust to the outside of the box 10 for collection, and commonly used methods include auger dust removal, fan-centrifuge dust removal, etc. The front and rear in this article are relative directional words, generally referring to the front and rear end directions of the box, the rear end direction is the side of the air inlet channel 11, and the front end is the end where the dust removal device 32 is set, the dust removal side.

[0045] like Figure 1 As shown, a dust discharge device 32 is provided on one side of the dust collecting trough 33, and the dust discharge device 32 transports the dust out of the dust collecting trough 33 to the outside of the box body 10 for collection and treatment. In one embodiment, the dust discharge device 32 includes a dust collecting auger 321 and a dust outlet 322, and the dust collecting auger 321 is arranged above the dust collecting trough 33, at least a part of which penetrates into the dust collecting trough 33, and transfers and concentrates the dust, and the dust is concentrated to the dust outlet 322, and is sucked into the dust outlet 322 and then sent out.

[0046] like Figure 9-10 As shown, the dust collecting auger 321 includes a main shaft 3213 and a positive auger blade 3211 and a reverse auger blade 3212 arranged on the main shaft 3213. The positive auger blade 3211 and the reverse auger blade 3212 are arranged opposite to each other on the left and right sides of the dust collecting auger 321, and the dust in the dust collecting tank 33 is gathered toward the dust outlet 322 in coordination with the rotation direction, and the dust is sucked into the dust outlet 322, and the dust is sent out of the box body 10 through the dust outlet. The auger blade is a spiral blade with a certain angle, and can be a continuous spiral blade, or a plurality of intermittent auger blades arranged in sequence at intervals.

[0047] The dust outlet 322 can be arranged near the two ends of the dust collecting trough 33. In a more preferred manner, the dust outlet 322 is above the middle of the dust collecting trough 33, the dust collecting trough 33 is arranged at one end of the housing 10, and the dust outlet 322 is arranged on the housing 10. The positive auger blades 3211 and the reverse auger blades 3212 gather the dust at the left and right ends of the dust collecting trough 33 to the middle part. A stirring blade 3214 is arranged in the middle position of the main shaft 3213, and the stirring blade 3214 lifts up the gathered dust to facilitate being sucked into the dust outlet 322. The dust collecting auger 321 can be driven directly by a motor, or by other means such as a chain or a belt, and any conventional method of driving the main shaft 3213 to rotate is acceptable.

[0048] like Figure 1-4 As shown, the dust scraping device 31 also includes a scraper 311 and a driver 34, and the scraper 311 is arranged above the bottom plate 13. A driving shaft 312 is provided at the upper part (above the middle part) or the upper end (top) of the scraper 311, and a stopper 314 is provided to limit the rotation angle of the driving shaft 312. The driving shaft 312 is an axis that runs through the scraper 311 or an axis structure that protrudes at both ends of the scraper 311. Rollers 313 are installed at both ends of the driving shaft 312, and the rollers 313 move forward and backward to drive the scraper 311 to move forward and backward. When the roller 313 moves toward the dust collecting tank 33, the stopper 33 limits the scraper 311 to be basically in a vertical state. When returning, the stopper 314 releases the limit, and the scraper 311 flips to form an angle with the bottom plate 13, thereby generating a gap to avoid the exiting dust. The limit block 314 can be a separately set block or a part of the connection structure. For example, in the case of a hinged connection, a structure that can limit the rotation angle is set on the hinge shaft or the hinge, such as a protrusion, groove, rod, hole, etc., as long as it can limit the rotation angle of the scraper.

[0049] like Figure 8 As shown, guide rails 14 are provided on the two side walls or the bottom plates 13 on both sides of the box body 10. The guide rails 14 can be profiles (such as rectangular steel pipes) or structures with guide rail grooves that can be supported by rollers. The rollers 313 are silicone rubber rollers.

[0050] In other embodiments, the cooperation between the roller and the guide rail can be replaced by the cooperation between the slide bar and the guide rail. The cooperation between the slide bar and the guide rail requires more frequent maintenance and is prone to dust accumulation, which increases friction.

[0051] like Fig.10As shown, in the front and rear directions of the box 10, that is, in the direction of dust movement, a plurality of scrapers 311 are spaced apart, and the distance that the scrapers 311 move is greater than the distance that the scrapers 311 are spaced apart. The latter scraper 311 scrapes the dust into the moving range of the former scraper 311, and the dust is moved into the dust collecting trough 33 in sequence. Of course, the frontmost scraper 311 can be at a certain distance from the dust collecting trough 33, and the dust can be pushed into the dust collecting trough 33 by utilizing dust accumulation. Due to the design of the spacing between the plurality of scrapers 311, the drive 34 only needs to complete a distance slightly greater than the spacing between one scraper 311.

[0052] Connected to the scraper 311 or the drive shaft 312, levers 35 are provided at both ends of the scraper 311 and the drive shaft 312. The levers 35 can drive the scraper 311 to rotate and drive the drive shaft 312 to move. When a plurality of scrapers 311 are provided, in order to drive the levers 35 at the same time, the levers 35 in the same row are hingedly connected to the upper connecting rod 36 through the hinge shaft 37, and the driver 34 drives the upper connecting rod 36, and the upper connecting rod 36 drives the plurality of levers 35 to rotate forward or backward.

[0053] like Figure 1 As shown in ,2,6, the limit block 314 is arranged on the upper connecting rod 36, and is located on one side or both sides of the lever 35. When the driver 34 pushes the driving shaft 312 to move forward, the limit block 314 blocks the side of the lever 35 to limit the scraper 311 to be basically vertical, and the gap with the bottom plate 13 is the smallest (smaller) or in contact with the bottom plate 13. At this time, the scraper 311 is in the first state 4. Specifically, the limit block 314 is located behind the lever 35 and below the hinge shaft 37, or in front of the lever 35 and above the hinge shaft 37. When pulling back, the upper end of the lever 35 rotates backward and then translates, and the upper connecting rod 36 moves backward. The limit block 314 blocks the side of the lever 35 to limit the scraper 311 to maintain a certain rotation angle, and there is a large gap between the end of the scraper 311 and the bottom plate 13. At this time, the scraper 311 is in the second state 5.

[0054] like Figure 7As shown, the driver 34 is a cylinder, including a cylinder body 341 and a piston rod 342. The lever 35 forms a certain angle α with the scraper 311. The preferred angle A is 165°~135°. In this embodiment, the angle A is selected to be 150°. A plastic plate 315 is provided at the lower end of the scraper 311. The plastic plate 315 is a plastic plate or a rubber plate, etc., or other plates with certain flexibility. The plastic plate 315 and the upper end of the scraper 311 have an angle B, and the angle B is 10°~20°. In this embodiment, the angle B is selected to be 15°. The setting of the plastic plate 315 causes the lower end of the scraper 311 to form a tail. When the scraper 311 retreats, there is a large gap between the lower end of the scraper 311 and the bottom plate 13.

[0055] Among the plurality of levers 35, at least one lever 35 extends a connecting arm 351 from the upper connecting rod 36, and the connecting arm 351 is hingedly connected to the end of the piston rod 342. The piston rod 342 pushes the connecting arm 351, and the connecting arm 351 drives the upper connecting rod 36 to move, and the scraper 311 rotates. As a preferred embodiment, the upper connecting rod 36 is provided with

[0056] The limiting block 314 includes a first limiting portion 3141 and a second limiting portion 3142 which are at right angles to the contact surface of the lever 35. The first limiting portion 3141 and the second limiting portion 3142 are substantially on the same horizontal plane as the hinge shaft 37.

[0057] Preferably, two drivers 34 are provided, which are fixed on both sides of the box 10. Specifically, the tail end of the cylinder 341 is fixed on the side wall of the box 10 or the bottom plate 13 through a hinge seat 343, and the cylinder 341 can rotate up and down around the hinge. A bracket 344 is provided at the head end of the cylinder 341, and the bracket 344 supports the cylinder 341 from the bottom of the cylinder 341 to be basically horizontally arranged, and the cylinder 341 can rotate upward at an angle to limit its downward rotation.

[0058] The dust collection mechanism 30 includes a lower connecting rod 39, which is symmetrically arranged on both sides. The lower connecting rod 39 is respectively connected to the two ends of the drive shaft 312 or connected to the fixed roller 313. Through the arrangement of the lower connecting rod 39, the rollers 313 on both sides of the dust collection mechanism 30 can roll synchronously, and have high stability. The lower connecting rod 39 is set as a flat steel and is arranged on the outside of the roller 313, which can save installation space. A support rod 38 is directly set on the lower connecting rod 39. Two or more support rods 38 are set, which can evenly connect the lower connecting rod 39. Preferably, the support rod 38 can also be fixed at the front and rear ends of the lower connecting rod 39 respectively, and the two support rods 38 and the two lower connecting rods 39 are connected to form a rectangle, so that the structure is more solid.

[0059] In some embodiments, the support rod 38 can also be fixed to the front and rear ends of the upper connecting rod 36 respectively, and the two support rods 38 and the two upper connecting rods 36 are connected to form a rectangle, making the structure more solid. The upper connecting rod 36, the lower connecting rod 39 and the plurality of levers 35 arranged between the upper connecting rod 36 and the lower connecting rod 39 form a parallelogram "four-link" structure. With the cooperation of the driver 34 and the limit block 314, the scraper 311 moves forward and backward in the dust scraping and avoidance positions, thereby achieving dust gathering forward.

[0060] The dust collection process of this dust collector:

[0061] The gas containing dust enters the box body 10 from the air inlet passage 11 and is discharged from the outlet passage through the dust filter; the dust is filtered by the filter bag 21 and shaken off onto the bottom plate 13 of the box body 10 .

[0062] The dust scraping device is in the second state at the rear end of the box (close to the air inlet channel 11), the cylinder is pushed out, and the connecting arm hinged with the piston rod rotates, driving the upper connecting rod, the lever and the scraper to the limit block, which is the first state;

[0063] The cylinder continues to be pushed out to the front end, and under the action of the upper and lower connecting rods, the scraper moves forward and pushes the dust to move.

[0064] The cylinder is retracted, and the scraper changes from the first state to the second state. There is a large gap between the bottom of the scraper and the bottom plate, and the cylinder continues to retract and returns to the rear end.

[0065] The piston rod is repeatedly pushed out and retracted, and the dust is gradually pushed into the dust collecting tank.

[0066] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, which is not limited thereto. Therefore, if a person skilled in the art is inspired by the present invention and creatively designs methods and embodiments similar to the technical solution without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A dust collector, comprising a housing (10) and a dust collecting mechanism (30), characterized in that: A bottom plate (13) is provided at the bottom of the inner side of the box body (10), and the bottom plate (13) is substantially flat. The dust collection mechanism (30) comprises a dust scraping device (31) arranged above the bottom plate (13), and the dust scraping device (31) comprises a scraper (311), a limit block (314) and a driver (34). The driver (34) drives the scraper (311) to move forward and backward on the bottom plate (13). When the scraper (311) moves forward, the limit block (314) limits the scraper (311) to a first state (4), and is capable of pushing dust to move forward. When the scraper (311) moves backward, the limit block (314) limits the scraper (311) to a second state (5), and a gap is provided between the scraper (311) and the bottom plate (13) for dust to pass through.

2. The dust collector according to claim 1, characterized in that: The first state (4) is that the scraper (311) is substantially perpendicular to the bottom plate (13) or the lower end of the scraper (311) is substantially perpendicular to the bottom plate (13); the second state (5) is that the angle between the scraper (311) and the bottom plate (13) is an acute angle or the end of the scraper (311) is substantially parallel to the bottom plate (13).

3. The dust scraping device of the dust collector according to claim 1, characterized in that: A driving shaft (312) is provided on the upper part of the scraper (311), rollers (313) are provided at both ends of the driving shaft (312), a lever (35) is provided opposite to the scraper (311), the driver (34) drives the lever (35) to move the scraper (311) to rotate around the driving shaft (312), and the rotation angle is limited by the limit block (314).

4. The dust collector according to claim 3, characterized in that: The dust scraping device (31) comprises an upper connecting rod (36) and a plurality of scraping plates (311) arranged at intervals, wherein the upper connecting rod (36) is hingedly connected to the shifting rods (35) corresponding to the plurality of scraping plates (311).

5. The dust collector according to claim 4, characterized in that: The lever (35) extends to form a connecting arm (351); the driver (34) is hingedly connected to the connecting arm (351) and drives the connecting arm (351) to drive the upper connecting rod (36) and the scraper (311) to move; the limit block (314) is arranged on the upper connecting rod (36) and is located on one side of the connecting arm (351).

6. The dust collector according to claim 3, characterized in that: The roller (313) is a silicone rubber roller.

7. The dust collector according to claim 5, characterized in that: The driver (34) comprises a cylinder body (341) and a piston rod (342); the cylinder body (341) is hingedly fixed on the box body (10); and a protruding end of the piston rod (342) is hingedly connected to the connecting arm (351).

8. The dust collector according to claim 7, characterized in that: The lever (35) and the scraper form an angle A, and the angle A is 165° to 135°; a plastic plate (315) is provided at the lower end of the scraper (311), and the plastic plate (315) and the upper end of the scraper (311) form an angle B, and the angle B is 10° to 20°.

9. The dust collector according to claim 8, characterized in that: The angle A is 150°; the angle B is 15°.

10. The dust collector according to claim 7, characterized in that: The driver (34), the upper connecting rod (36) and the connecting arm (351) are symmetrically arranged on both sides of the box body (10); guide rails (14) are respectively arranged below the roller (313); the guide rails (14) are respectively fixed on the side walls and / or the bottom plate (13) of the box body (10); both ends of the driving shaft (312) are rotatably connected to the lower connecting rod (39); a support rod (38) is arranged between the lower connecting rod (39) or the upper connecting rod (36); the lower connecting rod (39) or the upper connecting rod (36) and the support rod (38) form a rectangular structure; the lower connecting rod (39), the upper connecting rod (36) and the shifting rod (35) form a connecting rod structure.

11. The dust collector according to any one of claims 1 to 6, characterized in that: The dust collecting mechanism (30) further comprises a dust discharge device (32) and a dust collecting groove (33) arranged at the front end of the bottom of the box body (10); the dust discharge device (32) comprises a dust collecting auger (321) and a dust outlet (322); the dust collecting auger (321) comprises positive auger blades (3211) and reverse auger blades (3212) arranged on both sides of the main shaft (3213), and a stirring blade (3211) in the middle of the main shaft (3213). 4), the dust collecting auger (321) is arranged on the upper side of the dust collecting groove (33), the dust outlet (322) is arranged on the upper side of the stirring blade (3214), the positive auger blade (3211) and the reverse auger blade (3212) gather the dust pushed by the scraper (311) toward the stirring blade (3214), the stirring blade (3214) lifts the dust to the dust outlet (322), and the dust is sent out of the box (10) through the dust outlet (322).

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