Dust collection device and dust exchange method thereof

Abstract

The invention provides a dust collection device and a dust exchange method thereof, relates to the technical field of laser cutting, and can effectively solve the technical problem of dust leakage during dust collection and replacement in a thin-film solar photovoltaic cell laser process. A dust collecting device comprises a dust collector, a dust collecting funnel, a dust collecting bag, a first locking mechanism, a second locking mechanism, a first tightening mechanism, a second tightening mechanism and a dust collecting barrel. Wherein the dust collecting funnel is arranged at a dust outlet in the bottom of the dust collector, and an upper port of the dust collecting funnel is connected with the dust outlet; the bag opening of the dust collection bag is sleeved on the lower end opening of the dust collection funnel; the first locking mechanism and the second locking mechanism are arranged on the periphery of the bag opening up and down and used for locking the bag opening to the lower end opening. The first tightening mechanism and the second tightening mechanism are arranged on the periphery of a non-contact area of the bag opening and the lower port up and down and are used for tightening the bag opening; the opening of the dust collection barrel is detachably connected to the lower port, and the dust collection bag is arranged in the dust collection barrel.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting, and particularly relates to a dust collection device and a dust replacement method thereof. Background Art

[0002] In the manufacturing process of thin-film solar photovoltaic cells, laser scribing, film removal, and edge cleaning are essential processes. The main purpose is to locally laser burn the coating layer of the thin-film solar photovoltaic cells. Inevitably, coating dust will be generated during the laser treatment process. Among them, some coating raw materials, such as cadmium telluride in the cadmium telluride thin-film power generation glass film layer, can cause irritation and harm to the skin, eyes, respiratory system, etc. Therefore, it is urgent to set up a special dust collection device in the laser process to avoid the harm caused by dust spreading.

[0003] Most of the existing dust collection devices place a dust collection bucket or a dust collection bag at the dust outlet of the dust collector, and the bucket mouth or the bag mouth is connected to the dust outlet of the dust collector. Although the method of placing a dust collection bucket or a dust collection bag at the dust outlet of the dust collector is simple, since the dust collection bucket or the dust collection bag needs to be replaced after being filled with dust, dust leakage and personnel contact with dust cannot be avoided during the replacement process. Although the method of manually wearing protective clothing for replacement can, to a certain extent, avoid direct contact between personnel and dust, it cannot solve the dust leakage during the replacement of the dust collection device, and cannot avoid the risk that the leaked toxic dust is contacted by personnel during normal production. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a dust collection device and a dust replacement method thereof, which can effectively solve the technical problem of dust leakage during dust collection replacement in the laser process of thin-film solar photovoltaic cells.

[0005] According to a dust collection device of the first aspect embodiment of the present invention, it includes:

[0006] A dust collector;

[0007] A dust collection funnel, the dust collection funnel is arranged at the dust outlet at the bottom of the dust collector, and the upper port of the dust collection funnel is connected to the dust outlet;

[0008] A dust collection bag, the bag mouth of the dust collection bag is sleeved on the lower port of the dust collection funnel;

[0009] A first locking mechanism and a second locking mechanism, the first locking mechanism and the second locking mechanism are arranged above and below the periphery of the bag mouth for locking the bag mouth on the lower port;

[0010] A first tightening mechanism and a second tightening mechanism, the first tightening mechanism and the second tightening mechanism are disposed above and below the periphery of the area where the bag mouth does not contact the lower port, and are used to tighten the bag mouth;

[0011] A dust collection bucket, the opening of the dust collection bucket is detachably connected to the lower port, and the dust collection bag is disposed inside the dust collection bucket.

[0012] According to some embodiments of the present invention, a valve device is connected to the lower port of the dust collection funnel, the bag mouth is connected to the lower port through the valve device, and the opening of the dust collection bucket is detachably connected to the valve device.

[0013] According to some embodiments of the present invention, the valve device includes:

[0014] A mounting flange, the mounting flange is connected to the lower port of the dust collection funnel;

[0015] A valve, the valve is disposed inside the mounting flange, and one end thereof is connected to the mounting flange;

[0016] A driving motor, the driving motor is connected to the outside of the mounting flange, and the output end of the driving motor is connected to the valve to drive the valve to open and close.

[0017] According to some embodiments of the present invention, a tubular interface is connected to the lower port of the mounting flange, the bag mouth is connected to the interface, and the opening of the dust collection bucket is detachably connected to the interface.

[0018] According to some embodiments of the present invention, the first locking mechanism and the second locking mechanism lock the bag mouth on the interface above and below.

[0019] According to some embodiments of the present invention, the first tightening mechanism and the second tightening mechanism are disposed above and below the periphery of the bag mouth below the interface.

[0020] According to some embodiments of the present invention, the dust collection bucket includes:

[0021] A bucket body, the top of the bucket body forms the opening;

[0022] A cover, the bottom end of the cover is detachably connected to the opening, and the top end of the cover is detachably connected to the interface.

[0023] According to some embodiments of the present invention, the cover includes a left cover and a right cover that can be joined together,

[0024] After the left cover and the right cover are joined together, a first mating interface is formed at the bottom end, and the first mating interface is connected to the opening;

[0025] After the left cover and the right cover are joined together, a second mating port is formed at the top, and the second mating port is connected to the port.

[0026] According to some embodiments of the present invention, a baffle is further connected to the left cover or the right cover. The baffle is pivotally connected to the outer end of the left cover or the right cover, and the baffle is used to block the second mating port.

[0027] According to some embodiments of the present invention, rollers are further provided at the bottom of the barrel body.

[0028] A handle is further connected to the side of the baffle away from the pivoting end.

[0029] A dust changing method for a dust collecting device according to an embodiment of the second aspect of the present invention is applied to the dust collecting device according to any one of the embodiments of the first aspect, and includes the following steps:

[0030] S1, the dust collector operates to collect the dust generated in the equipment, and the collected dust is introduced into the dust collecting bag through the dust collecting funnel;

[0031] S2, until the dust collecting bag is full of dust, the first tightening mechanism is used to tighten the area where the mouth of the dust collecting bag does not contact the lower port of the dust collecting funnel, that is, the mouth of the bag is tightened once;

[0032] S3, the second tightening mechanism below the first tightening mechanism is used to tighten the area where the mouth of the dust collecting bag does not contact the lower port of the dust collecting funnel, that is, the mouth of the bag is tightened twice. At this time, the dust collecting bag forms three mutually isolated areas: the upper layer, the middle layer, and the lower layer;

[0033] S4, cut the middle area of the dust collecting bag. At this time, the dust collecting bag is divided into two upper and lower sealed first bag bodies and second bag bodies. The first bag body is sleeved on the lower port of the dust collecting funnel through the first locking mechanism and the second locking mechanism, and the second bag body falls into the dust collecting barrel;

[0034] S5, disassemble and separate the opening of the dust collecting barrel from the lower port, and remove the dust collecting barrel to transfer the dust in the second bag body;

[0035] S6, after transferring the dust in the second bag body, a new dust collecting bag is sleeved in the dust collecting barrel, and the dust collecting barrel is moved to the lower port of the dust collecting funnel;

[0036] S7, loosen the first locking mechanism, turn down the upper half of the remaining first bag body, leave a bag-sleeving area on the lower port, and sleeve the new dust collecting bag in the dust collecting barrel on the bag-sleeving area. At this time, the second locking mechanism still locks the remaining first bag body, and the first bag body is wrapped by the new dust collecting bag;

[0037] S8. Use the first locking mechanism to lock the mouth of the new dust collection bag at the bagging area, and loosen the second locking mechanism. At this time, the second locking mechanism and the remaining first bag body fall into the new dust collection bag together;

[0038] S9. Take a new second locking mechanism and lock the mouth of the new dust collection bag at the locking position corresponding to the original second locking mechanism, and socket the opening of the dust collection bucket with the lower port to perform the next dust collection work.

[0039] The dust collection device according to the embodiment of the present invention has at least the following beneficial effects:

[0040] For the dust collection device according to the embodiment of the present invention, the first locking mechanism and the second locking mechanism are used to lock the mouth of the dust collection bag and the lower port of the dust collection funnel respectively from above and below, which can effectively ensure the sealing performance of the dust collection bag when collecting dust. In addition, a first tightening mechanism and a second tightening mechanism are respectively sleeved on the upper and lower peripheries of the mouth of the dust collection bag. After the dust collection bag is filled with dust, the mouth of the dust collection bag can be tightened from above and below respectively, so that the dust collection bag is divided into three mutually isolated upper, middle and lower layers. Then cut the dust collection bag from the middle area, so that the dropped part of the dust collection bag falls into the dust collection bucket and is sealed and transported away, and the remaining part at the lower port of the dust collection funnel keeps the lower port sealed, effectively ensuring that the dust will not leak when the dust collection bag filled with dust is separated from the dust collection funnel and replaced, and maximizing the avoidance of the risk that the operator contacts the dust in the working environment.

[0041] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. Description of the Drawings

[0042] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0043] Figure 1 is a schematic structural diagram of the dust collection device according to the embodiment of the present invention;

[0044] Figure 2 is a schematic structural diagram of the connection between the dust collection bag and the dust collection funnel in the dust collection device according to the embodiment of the present invention;

[0045] Figure 3 is a schematic structural diagram of the connection between the valve device and the dust collection funnel in the dust collection device according to the embodiment of the present invention;

[0046] Figure 4 is a three-dimensional schematic diagram of the connection between the baffle and the cover in the dust collection device according to the embodiment of the present invention;

[0047] Figure 5 The front view of the connection between the baffle and the cover in the dust collection device according to the embodiment of the present invention;

[0048] Figure 6 The connection schematic diagram of the locking mechanism in the dust collection device according to the embodiment of the present invention;

[0049] Figure 7 The connection schematic diagram of the tightening mechanism in the dust collection device according to the embodiment of the present invention;

[0050] Figure 8 The schematic diagram when cutting the dust collection bag in the dust collection method of the dust collection device according to the embodiment of the present invention.

[0051] Reference numerals:

[0052] Dust collector 10, dust collection funnel 20, sealing gasket 21, dust collection bag 30, first locking mechanism 40, second locking mechanism 50, first tightening mechanism 60, second tightening mechanism 70, dust collection barrel 80, barrel body 81, cover 82, left cover 821, right cover 822, roller 83, baffle 84, handle 85, hinge 86, magnet 87, valve device 90, mounting flange 91, drive motor 92, interface 93. Detailed embodiments

[0053] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention fall within the scope of protection of the present invention.

[0054] Unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those of ordinary skill in the art belonging to the field of the present invention. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0055] First, the dust collection device according to the embodiment of the present invention will be specifically described below with reference to the accompanying drawings.

[0056] The dust collection device according to the first aspect embodiment of the present invention, as Figure 1 AndFigure 2 As shown, it may include: a dust collector 10, a dust collection funnel 20, a dust collection bag 30, a first locking mechanism 40 and a second locking mechanism 50, a first tightening mechanism 60 and a second tightening mechanism 70, and a dust collection bucket 80.

[0057] Among them, the dust collection funnel 10 is arranged at the dust outlet at the bottom of the dust collector 10, and the upper port of the dust collection funnel 10 is connected to the dust outlet. The bag mouth of the dust collection bag 30 is sleeved on the lower port of the dust collection funnel 10. The dust collection funnel 10 is used to guide the dust falling at the dust outlet at the bottom of the dust collector 10 and introduce it into the dust collection bag 30 for collection. Preferably, a layer of sealing gasket 21 is also attached to the upper port of the dust collection funnel 10 to ensure the close connection between the upper port of the dust collection funnel 10 and the dust outlet of the dust collector 10.

[0058] The first locking mechanism 40 and the second locking mechanism 50 are arranged above and below the periphery of the bag mouth and are used to lock the bag mouth on the lower port. The first locking mechanism 40 and the second locking mechanism 50 are arranged above and below to lock the bag mouth of the dust collection bag 30 on the lower port of the dust collection funnel 10, ensuring the tightness of the connection between the dust collection bag 30 and the dust collection funnel 10, realizing the primary and secondary sealing of the bag mouth of the dust collection bag 30, and preventing dust leakage at this connection.

[0059] The first tightening mechanism 60 and the second tightening mechanism 70 are arranged above and below the periphery of the area where the bag mouth does not contact the lower port and are used to tighten the bag mouth. Specifically, the first tightening mechanism 60 and the second tightening mechanism 70 are used to tighten the part of the bag mouth of the dust collection bag 30 that does not contact the lower port of the dust collection funnel 10 after the dust collection bag 30 is filled with dust, so that the entire dust collection bag 30 after tightening is divided into three completely isolated and independent upper, middle, and lower layers for the isolation function inside the dust collection bag 30, facilitating the prevention of dust leakage after the dust collection bag 30 is filled with dust and removed.

[0060] The opening of the dust collection bucket 80 is detachably connected to the lower port, and the dust collection bag 30 is arranged inside the dust collection bucket 80. That is to say, the dust collection bucket 80 is detachably connected to the lower port. On the one hand, it is used to carry the dust collection bag 30 when the dust collection bag 30 is connected to the lower port of the dust collection funnel 10, playing a role in protecting the dust collection bag 30. On the other hand, it can also be used to conveniently transport and replace the dust collection bag 30 when the dust collection bag 30 is filled with dust. In addition, the dust collection bucket 80 also has the function of isolating the dust collection bag 30 from the outside (i.e., isolating the dust inside the dust collection bag 30).

[0061] Specifically, the dust collection device of the embodiment of the present invention, as Figure 6 shown, by respectively locking the bag mouth of the dust collection bag 30 and the lower port of the dust collection funnel 20 by the first locking mechanism 40 and the second locking mechanism 50 above and below, the tightness of the dust collection bag 30 when collecting the dust exported by the dust collection funnel 20 can be effectively guaranteed. In addition, as Figure 7As shown, a first tightening mechanism 60 and a second tightening mechanism 70 are respectively sleeved on the outer periphery of the mouth of the dust collection bag 30 from top to bottom. Among them, the first tightening mechanism 60 and the second tightening mechanism 70 are located below the first locking mechanism 40 and the second locking mechanism 50. After the dust collection bag 30 is filled with dust, they can respectively tighten the mouth of the dust collection bag 30 from top to bottom, so that the dust collection bag 30 is divided into three mutually isolated upper, middle and lower layers, and the dust collection bag 30 is cut off from the middle area, so that the dropped part of the dust collection bag 30 falls into the dust collection bucket 80 and is sealed and transported away, and the remaining part at the lower port of the dust collection funnel 20 keeps the lower port sealed, effectively ensuring that the dust will not leak when the dust collection bag 30 filled with dust is separated and replaced from the dust collection funnel 20, and maximizing the avoidance of the risk of operators contacting dust in the working environment.

[0062] Referring to Figure 1 and Figure 2 As shown, in some embodiments of the present invention, a valve device 90 is connected to the lower port of the dust collection funnel 20, the mouth of the bag is connected to the lower port through the valve device 90, and the opening of the dust collection bucket 80 is detachably connected to the valve device 90.

[0063] That is to say, the mouth of the dust collection bag 30 is connected to the lower port of the dust collection funnel 20 through the valve device 90. Thus, the on-off at the lower port of the dust collection funnel 20 is controlled through the valve device 90 to ensure controllability and safety in the dust collection operation.

[0064] Referring to Figure 3 As shown, in some embodiments of the present invention, the valve device 90 may include: a mounting flange 91, a valve (not shown), and a driving motor 92. Among them, the mounting flange 91 is connected to the lower port of the dust collection funnel 20. The valve is arranged inside the mounting flange 91, and one end of it is connected to the mounting flange 91. The driving motor 92 is connected to the outside of the mounting flange 91, and the output end of the driving motor 92 is connected to the valve to drive the valve to open and close.

[0065] That is to say, by controlling the opening and closing of the valve in the mounting flange 91 through the driving motor 92, the on-off of the lower port of the dust collection funnel 20 is realized, which is convenient, efficient, and has a high degree of automation.

[0066] Referring to Figure 3 As shown, in some embodiments of the present invention, a tubular interface 93 is connected to the lower port of the mounting flange 91, the mouth of the bag is connected to the interface 93, and the opening of the dust collection bucket 80 is detachably connected to the interface 93.

[0067] That is to say, a tubular interface 93 extending downward is connected to the lower port of the mounting flange 91 to facilitate connecting the mouth of the dust collection bag 30 and the opening of the dust collection bucket 80. In addition, the interface 93 is detachable from the mounting flange 91, which is convenient for loss replacement.

[0068] Reference Figure 2 As shown, in some embodiments of the present invention, the first locking mechanism 40 and the second locking mechanism 50 lock the bag opening on the interface 93 from above and below. That is to say, the bag opening of the dust collection bag 30 is locked on the interface 93 at the lower port of the mounting flange 91 from above and below by the first locking mechanism 40 and the second locking mechanism 50, which is convenient for installation and easy to disassemble and replace.

[0069] Reference Figure 2 As shown, in some embodiments of the present invention, the first tightening mechanism 60 and the second tightening mechanism 70 are disposed above and below the periphery of the bag opening below the interface 93. That is to say, the first tightening mechanism 60 and the second tightening mechanism 70 are used for the areas where the bag opening of the dust collection bag 30 does not contact the interface 93 from above and below, so that after the dust collection bag 30 is filled with dust and disassembled, the first tightening mechanism 60 and the second tightening mechanism 70 are tightened respectively, so that the dust collection bag 30 is divided into three completely isolated upper, middle and lower regions.

[0070] Reference Figure 1 As shown, in some embodiments of the present invention, the dust collection bucket 80 may include: a bucket body 81 and a cover 82. Among them, an opening is formed at the top of the bucket body 81. The bottom end of the cover 82 is detachably connected to the opening, and the top end of the cover 82 is detachably connected to the interface 93.

[0071] That is to say, the dust collection bucket 80 is provided with a bucket body 81 and a cover 82 detachably connected to the opening of the bucket body 81, and the opening of the bucket body 81 is detachably connected to the interface 93 on the lower port of the mounting flange 91 through the cover 82, which is convenient for installation and disassembly, making it more efficient to replace the dust collection bag 30.

[0072] Reference Figure 1 As shown, in some embodiments of the present invention, the cover 82 includes a left cover 821 and a right cover 822 that can be joined together. After the left cover 821 and the right cover 822 are joined together, a first mating interface is formed at the bottom end, and the first mating interface is connected to the opening. After the left cover 821 and the right cover 822 are joined together, a second mating interface is formed at the top end, and the second mating interface is connected to the interface 93.

[0073] That is to say, the cover 82 includes a left cover 821 and a right cover 822 that can be detachably joined together. For example, both the left cover 821 and the right cover 822 are semi-circular arcs, and after being joined together, a complete cover 82 is formed, which not only connects the bucket body 81 to the interface 93, but also realizes the sealing of the inside of the bucket body 81.

[0074] In some embodiments of the present invention, a baffle 84 is further connected to the left cover 821 or the right cover 822. The baffle 84 is pivotally connected to the outer end of the left cover 821 or the right cover 822, and the baffle 84 is used to block the second mating interface.

[0075] As an example, such asFigure 4 and Figure 5 As shown in Figure 5 , a baffle 84 is rotatably connected to the outer end of the right cover 822 through a hinge 86. When the baffle 84 is in the P2 position, it is in an open state. At this time, the cover 82 connecting the lower port of the dust collection funnel 20 is in a dust collection state. When the baffle 84 is in the P1 position, it is used to block the second pair of interfaces at the top formed by the left cover 821 and the right cover 822. At this time, when the dust collection bucket 80 is being transported, the dust collection bag 30 is isolated from the outside.

[0076] Referring to Figure 1 、 Figure 4 and Figure 5 As shown in Figure 5 , in some embodiments of the present invention, rollers 83 are further provided at the bottom of the barrel body 81, and a handle 85 is also connected to the side of the baffle 84 away from the flipping end.

[0077] Thus, when the dust collection bucket 80 transports the dust collection bag 30, the baffle 84 blocks the second pair of interfaces at the top of the cover 82. By manually pushing and pulling the handle 85, under the action of the rollers 83 at the bottom of the barrel body 81, the transfer of the dust collection bag 30 is conveniently realized.

[0078] In addition, a plurality of magnets 87 can be provided on the side of the baffle 84 close to the second pair of interfaces, so as to be magnetically connected to the cover 82 when covering the cover 82, which is convenient, reliable and fast.

[0079] According to the dust collection bag replacement method of the dust collection device according to the second aspect embodiment of the present invention, which is applied to the dust collection device according to any one of the above first aspect embodiments, it includes the following steps:

[0080] S1, the dust collector works to collect the dust generated in the equipment, and the collected dust is introduced into the dust collection bag through the dust collection funnel.

[0081] S2, until the dust in the dust collection bag is full, the mouth of the dust collection bag is tightened by the first tightening mechanism in the area where it does not contact the lower port of the dust collection funnel, that is, the mouth of the bag is tightened for the first time.

[0082] S3, the mouth of the dust collection bag is tightened by the second tightening mechanism below the first tightening mechanism in the area where it does not contact the lower port of the dust collection funnel, that is, the mouth of the bag is tightened for the second time. At this time, the dust collection bag forms three mutually isolated areas: the upper layer, the middle layer, and the lower layer.

[0083] S4, cut the middle area of the dust collection bag. At this time, the dust collection bag is divided into two sealed first bag bodies and second bag bodies, the first bag body is sleeved on the lower port of the dust collection funnel through the first locking mechanism and the second locking mechanism, and the second bag body falls into the dust collection bucket; specifically, referring to Figure 8As shown in the figure, through the tightening of the first tightening mechanism 60 and the second tightening mechanism 70, the dust collection bag 30 is formed into three mutually isolated regions: upper layer, middle layer, and lower layer. By cutting the middle region of the dust collection bag 30, that is, the position P3, the dust collection bag can be divided into two sealed first bag bodies (the remaining part above the first tightening mechanism 60) and a second bag body (the part below the second tightening mechanism 70), thereby realizing the sealing of dust during full-dust bag removal.

[0084] S5, disassemble and separate the opening of the dust collection bucket from the lower port, and remove the dust collection bucket to transfer the dust in the second bag body;

[0085] S6, after transferring the dust in the second bag body, put a new dust collection bag on the dust collection bucket, and move the dust collection bucket to the lower port of the dust collection funnel;

[0086] S7, loosen the first locking mechanism, turn down the upper half of the remaining first bag body, leave a bag-sleeving area on the lower port, and put the new dust collection bag in the dust collection bucket on the bag-sleeving area. At this time, the second locking mechanism still locks the remaining first bag body, and the first bag body is wrapped by the new dust collection bag;

[0087] S8, use the first locking mechanism to lock the bag mouth of the new dust collection bag at the bag-sleeving area, and loosen the second locking mechanism. At this time, the second locking mechanism and the remaining first bag body together fall into the new dust collection bag;

[0088] S9, take a new second locking mechanism and lock the bag mouth of the new dust collection bag at the locking position corresponding to the original second locking mechanism, and socket the opening of the dust collection bucket with the lower port to carry out the next dust collection work.

[0089] According to the dust collection bag replacement method of the dust collection device according to the embodiment of the present invention, it is possible to ensure that during the entire process of replacing the dust collection bag, the operator is completely not in contact with the dust. And during the process of disassembling and transporting the dust collection bag filled with dust and the dust collection bucket, both the dust collection bag and the dust collection bucket are in a sealed state, and no dust leakage will occur, and the personnel will not be in contact with the dust during the transportation process.

[0090] The above is the preferred implementation manner of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle described in the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A dust collecting device, characterized in that: include: Dust collector; A dust collecting funnel, the dust collecting funnel is arranged at the dust outlet at the bottom of the dust collector, and the upper end of the dust collecting funnel is connected to the dust outlet; A dust collecting bag, the bag opening of which is sleeved on the lower port of the dust collecting funnel; a first locking mechanism and a second locking mechanism, wherein the first locking mechanism and the second locking mechanism are disposed at the periphery of the bag opening and at the bottom thereof, and are used to lock the bag opening on the lower end port; A first tightening mechanism and a second tightening mechanism, wherein the first tightening mechanism and the second tightening mechanism are arranged at the periphery of the area where the bag opening and the lower end port do not contact each other, and are used to tighten the bag opening; A dust collecting bucket, the opening of which is detachably connected to the lower port, and the dust collecting bag is arranged in the dust collecting bucket.

2. The dust collecting device according to claim 1, characterized in that: The lower port of the dust collecting hopper is connected with a valve device. The bag opening is connected to the lower port through the valve device, The opening of the dust collecting bucket is detachably connected to the valve device.

3. The dust collecting device according to claim 2, characterized in that: The valve device comprises: A mounting flange connected to a lower port of the dust collecting hopper; A valve, wherein the valve is arranged inside the mounting flange and one end of the valve is connected to the mounting flange; A driving motor is connected to the outside of the mounting flange, and an output end of the driving motor is connected to the valve to drive the valve to open and close.

4. The dust collecting device according to claim 3, characterized in that: The lower end of the mounting flange is connected with a tubular interface. The bag opening is connected to the interface, The opening of the dust collecting bucket is detachably connected to the interface.

5. The dust collecting device according to claim 4, characterized in that: The first locking mechanism and the second locking mechanism lock the bag opening on the interface at the top and bottom.

6. The dust collecting device according to claim 4, characterized in that: The first tightening mechanism and the second tightening mechanism are arranged on the periphery of the bag opening below the interface.

7. The dust collecting device according to claim 4, characterized in that: The dust collecting bucket comprises: A barrel body, the top of which is formed with the opening; A cover, wherein the bottom end of the cover is detachably connected to the opening, and the top end of the cover is detachably connected to the interface.

8. The dust collecting device according to claim 7, characterized in that: The cover comprises a left cover and a right cover which can be matched. After the left cover and the right cover are joined, a first pair of interfaces are formed at the bottom ends, and the first pair of interfaces are connected to the opening; After the left cover and the right cover are matched, a second pair of interfaces is formed at the top, and the second pair of interfaces is connected to the interface.

9. The dust collecting device according to claim 8, characterized in that: The left cover or the right cover is also connected with a blocking piece, and the blocking piece is flipably connected to the outer end of the left cover or the right cover, and the blocking piece is used to cover the second pair of interfaces.

10. The dust collecting device according to claim 9, characterized in that: The bottom of the barrel is also provided with a roller. A handle is also connected to the side of the blocking piece away from the flipping end.

11. A dust replacement method for a dust collecting device, characterized in that: The steps include: S1, the dust collector works to collect dust generated in the equipment, and the collected dust is introduced into the dust bag through the dust collecting funnel; S2, until the dust in the dust bag is full, tighten the area where the bag opening of the dust bag does not contact the lower end of the dust collecting funnel by a first tightening mechanism, that is, tighten the bag opening once; S3, tightening the area where the bag opening of the dust bag does not contact the lower end of the dust collecting funnel by a second tightening mechanism below the first tightening mechanism, i.e., tightening the bag opening twice, at which time the dust bag forms three mutually isolated areas of an upper layer, a middle layer, and a lower layer; S4, cutting off the middle area of ​​the dust bag, at which time the dust bag is divided into two sealed upper and lower first bag bodies and second bag bodies, the first bag body is sleeved on the lower port of the dust collecting funnel through the first locking mechanism and the second locking mechanism, and the second bag body falls into the dust collecting bucket; S5, disassembling and separating the opening of the dust collecting bucket from the lower port, and removing the dust collecting bucket to transfer the dust in the second bag body; S6, after the dust in the second bag body is transferred, a new dust bag is put into the dust collecting bucket, and the dust collecting bucket is moved to the lower end of the dust collecting funnel; S7, loosen the first locking mechanism, turn down the upper half of the remaining first bag body, leave a bagging area on the lower port, put the new dust bag in the dust bucket on the bagging area, and the second locking mechanism still locks the remaining first bag body, and the first bag body is wrapped by the new dust bag; S8, locking the bag opening of the new dust bag at the bagging area with the first locking mechanism, and releasing the second locking mechanism, so that the second locking mechanism and the remaining first bag body fall into the new dust bag together; S9, take a new second locking mechanism to lock the bag opening of the new dust bag corresponding to the locking position of the original second locking mechanism, and connect the opening of the dust bucket with the lower port to carry out the next dust collection work.

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