A dust handling device for indoor decoration

Abstract

The present invention relates to the technical field of dust treatment devices, and specifically relates to a dust treatment device for interior decoration, which includes a frame, an upper cylinder, a lower cylinder, and a filter screen. An embedding groove is formed in the lower cylinder, and the filter screen is nested in the embedding groove and is arranged in a conical shape. The lower cylinder located on both the inner and outer sides of the filter screen is respectively called the inner cylinder and the outer cylinder. A cavity is defined between the outer cylinder and the filter screen, and a blocking member is arranged in the cavity. The dust treatment device for interior decoration of the present invention embeds the filter screen on the lower cylinder and arranges the blocking member. Using the filter screen as the front end of cyclone separation dust removal, before performing dust removal by the cyclone separation method, the filter screen is first used for preliminary filtration, and the filtered smoke and dust can be directly sent into the upper cylinder for secondary dust removal, greatly reducing the treatment pressure of the dust treatment device for interior decoration.

Description

Technical Field

[0001] The present invention relates to the technical field of dust treatment devices, and particularly to a dust treatment device for indoor decoration. Background Art

[0002] With the continuous development of the construction industry and the improvement of people's living standards, indoor decoration activities have become increasingly frequent. However, a large amount of smoke and dust is generated during indoor decoration. These smoke and dust not only pose a serious threat to the physical health of construction workers, but also pollute the indoor environment, affecting the decoration quality and subsequent living experience.

[0003] As a common treatment device, a cyclone separator can separate smoke and dust to a certain extent, and is an important tool to ensure a clean decoration environment. However, when actually applied to indoor decoration scenarios, many problems have emerged in the existing cyclone separators.

[0004] The smoke and dust generated during indoor decoration are characterized by large quantity and complex composition. This makes the existing cyclone separators face a sharp increase in processing pressure when dealing with a large amount of smoke and dust. Its processing capacity often fails to meet the high-intensity smoke and dust generation volume at the decoration site, resulting in poor separation effect. A large amount of smoke and dust cannot be effectively separated and is discharged into the air, which may also cause equipment failures and affect the normal progress of the decoration project. Summary of the Invention

[0005] The present invention provides a dust treatment device for indoor decoration to solve the problem of poor separation effect when the existing cyclone separator treats a large amount of smoke and dust.

[0006] A dust treatment device for indoor decoration of the present invention adopts the following technical solution: A dust treatment device for indoor decoration includes a frame, an upper cylinder, a lower cylinder and a filter screen; the upper cylinder and the lower cylinder are arranged in sequence in the first direction, and the first direction is the vertical direction; the upper cylinder is cylindrical, an air outlet pipe is arranged at the upper end of the upper cylinder, the lower cylinder is conical, a dust collection port is opened on the lower cylinder, and the lower cylinder is fixedly connected to the frame; the upper cylinder is located at the upper end of the lower cylinder, and the lower end of the upper cylinder is fixedly connected to the large end of the lower cylinder; an embedding groove is opened on the lower cylinder, the embedding groove is coaxially arranged with the lower cylinder, and the filter screen is nested in the embedding groove and is conical; the filter screen is used for filtering the soot with a diameter greater than a preset value; the inner and outer sides of the lower cylinder located inside and outside the filter screen are respectively called the inner cylinder and the outer cylinder, and the side close to the vertical central axis of the lower cylinder along the second direction is called the inner side, and the side far from the vertical central axis of the lower cylinder is called the outer side, and the second direction is the radial direction of the lower cylinder; an inner cavity is defined between the inner cylinder and the filter screen, and an outer cavity is defined between the outer cylinder and the filter screen; an air inlet is opened on the outer cylinder, the air inlet is communicated with the outer cavity, a blocking member is arranged in the outer cavity, the blocking member divides the outer cavity into a filtering cavity and a transition cavity, and the filtering cavity and the transition cavity are independent of each other. In the initial state, the filtering cavity faces the air inlet, and a communication groove is opened on the upper cylinder, the communication groove is spiral, and the communication groove communicates the upper cylinder and the transition cavity.

[0007] Further, the blocking member includes two blocking blocks, both of the two blocking blocks are arranged in the outer cavity and are arranged in sequence around the first direction in the outer cavity, and the two blocking blocks are slidably sealed with the filter screen.

[0008] Further, the filter screen is rotatably arranged around the first direction, a scraper is arranged at the inner end of the blocking block, and a dust collection chamber is arranged on the outer cylinder, and the dust collection chamber is communicated with the filtering cavity.

[0009] Further, an inner runner is arranged in the inner cavity, an outer runner is arranged in the outer cavity, both the inner runner and the outer runner are in contact with the filter screen, both the inner runner and the outer runner are rotatably arranged around the first direction, and the rotation directions of the inner runner and the outer runner are opposite.

[0010] Further, the filter screen has elasticity, a driving member is arranged on the frame, and the driving member can drive the filter screen to move along the second direction; a collection chamber is arranged on the outer cylinder, and the collection chamber and the driving member are on the same side.

[0011] Further, the driving member and the air inlet are oppositely arranged in the second direction.

[0012] Further, the driving member is a hydraulic telescopic rod, the hydraulic telescopic rod passes through the outer cylinder along the second direction, and the movement of the hydraulic telescopic rod along the second direction can be in contact with the filter screen, so that the filter screen can move along the second direction.

[0013] Further, an insertion block is provided at the lower end of the upper cylinder body. The insertion block is inserted into the embedding groove and abuts against the upper end of the filter screen, so as to seal the upper end of the inner cavity; the lower end of the filter screen abuts against the inner bottom wall of the embedding groove.

[0014] Further, two limiting blocks are fixedly connected in the inner cavity. The two limiting blocks are arranged in sequence around the first direction in the inner cavity, and air channels are formed in both of the two limiting blocks; the two blocking blocks are arranged in one-to-one correspondence with the two limiting blocks. The blocking block and the corresponding limiting block are respectively located on the inner and outer sides of the filter screen, and both are slidably sealed with the filter screen.

[0015] Further, a plurality of first limiting blocks are arranged in the inner cavity. The plurality of first limiting blocks are evenly distributed around the first direction in the inner cavity. A plurality of second limiting blocks are arranged in the outer cavity. The plurality of second limiting blocks are evenly distributed around the first direction in the outer cavity. The plurality of first limiting blocks and the plurality of second limiting blocks are arranged in one-to-one correspondence. The first limiting block and the corresponding second limiting block are respectively located on the inner and outer sides of the filter screen, and a gap is left between both and the filter screen.

[0016] The beneficial effects of the present invention are as follows: In a dust treatment device for indoor decoration of the present invention, a filter screen is embedded on the lower cylinder body and a blocking member is provided. During use, air is introduced from the air inlet by an air pump. After the air enters the filter cavity of the outer cavity from the air inlet, since the blocking member restricts the flow of dust from the filter cavity to the transition cavity in the outer cavity, the dust will move from outside to inside, pass through the filter screen corresponding to the filter cavity and enter the inner cavity. During this process, the filter screen corresponding to the filter cavity filters out dust with a diameter greater than a preset value, and dust with a diameter less than the preset value will pass through the filter screen and come to the inner cavity. After passing through the inner cavity, the dust will continue to move from inside to outside and come to the transition cavity of the outer cavity again, and enter the upper cylinder body from the communication groove in the transition cavity. The internal structure of the upper cylinder body and the internal structure of the lower cylinder body are the same as the structure of a cyclone separator in the prior art. After the dust enters the upper cylinder body tangentially along the communication groove, the dust will rotate downward in a spiral manner. The solid particles are thrown onto the inner wall of the upper cylinder body under the action of centrifugal force and fall into the dust collection port under the action of gravity. The purified gas is discharged from the air outlet pipe. Using the filter screen as the front end of cyclone separation dust removal, before performing dust removal by the cyclone separation method, the filter screen is first used for preliminary filtration to filter out dust with a diameter greater than a preset value, and the filtered dust can be directly sent into the upper cylinder body for secondary dust removal, greatly reducing the processing pressure of the dust treatment device for indoor decoration. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of the overall structure of an embodiment of a dust treatment device for indoor decoration according to the present invention;

[0019] Figure 2 Front view of the overall structure of an embodiment of a dust treatment device for indoor decoration according to the present invention;

[0020] Figure 3 For Figure 2 Cross-sectional view along A-A in

[0021] Figure 4 For Figure 3 Enlarged view at C in

[0022] Figure 5 For Figure 3 Enlarged view at D in

[0023] Figure 6 For Figure 2 Cross-sectional view along B-B in

[0024] Figure 7 For Figure 6 Enlarged view at E in

[0025] Figure 8 For Figure 6 Enlarged view at F in

[0026] Figure 9 For Figure 6 Enlarged view at G in

[0027] In the figure: 100, frame; 200, upper cylinder; 210, air outlet pipe; 220, communication groove; 230, insertion block; 300, lower cylinder; 301, dust collection port; 310, inner cylinder; 320, outer cylinder; 321, air inlet; 322, dust collection chamber; 323, collection chamber; 330, inner cavity; 331, inner runner; 332, limit block; 333, first limiting block; 334, first flow channel; 340, outer cavity; 341, filter cavity; 342, transition cavity; 343, outer runner; 344, second limiting block; 400, filter screen; 500, plugging block; 600, hydraulic telescopic rod. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] An embodiment of a dust treatment device for indoor decoration according to the present invention is as Figures 1 to 9 shown.

[0030] A dust treatment device for indoor decoration includes a frame 100, an upper cylinder 200, a lower cylinder 300, and a filter screen 400. The upper cylinder 200 and the lower cylinder 300 are arranged in sequence in a first direction, and the first direction is the vertical direction. The upper cylinder 200 is cylindrical, and an air outlet pipe 210 is provided at the upper end of the upper cylinder 200. The lower cylinder 300 is conical, and a dust collection port 301 is provided on the lower cylinder 300. The lower cylinder 300 is fixedly connected to the frame 100. The upper cylinder 200 is located at the upper end of the lower cylinder 300, and the lower end of the upper cylinder 200 is fixedly connected to the large end of the lower cylinder 300. An embedding groove is provided on the lower cylinder 300, and the embedding groove is coaxially arranged with the lower cylinder 300. The filter screen 400 is nested in the embedding groove and is conical. The filter screen 400 is used to filter the soot with a diameter greater than a preset value.

[0031] The lower cylinder 300 on both the inner and outer sides of the filter screen 400 is respectively called the inner cylinder 310 and the outer cylinder 320. The side close to the vertical central axis of the lower cylinder 300 along the second direction is called the inner side, and the side far from the vertical central axis of the lower cylinder 300 is called the outer side. That is, the inner cylinder 310 is located inside the filter screen 400, and the outer cylinder 320 is located outside the filter screen 400. The second direction is the radial direction of the lower cylinder 300.

[0032] An inner cavity 330 is defined between the inner cylinder 310 and the filter screen 400, and an outer cavity 340 is defined between the outer cylinder 320 and the filter screen 400. An air inlet 321 is provided on the outer cylinder 320, and the air inlet 321 is communicated with the outer cavity 340 for introducing soot. A blocking member is provided in the outer cavity 340, and the blocking member divides the outer cavity 340 into a filtering cavity 341 and a transition cavity 342, and the filtering cavity 341 and the transition cavity 342 are independent of each other. That is, after the soot enters the outer cavity 340, it can only flow in the filtering cavity 341, and the flow of the soot in the outer cavity 340 from the filtering cavity 341 to the transition cavity 342 or from the transition cavity 342 to the filtering cavity 341 is restricted. In the initial state, the filtering cavity 341 faces the air inlet 321, and a connecting groove 220 is provided on the upper cylinder 200. The connecting groove 220 is spiral, and the connecting groove 220 connects the upper cylinder 200 and the transition cavity 342.

[0033] In this embodiment, a filter screen 400 is embedded in the lower cylinder body 300 and a sealing member is provided. During use, a gas is introduced from the air inlet 321 by an air pump. After the gas enters the filtering chamber 341 of the outer chamber 340 from the air inlet 321, due to the restriction of the sealing member on the flow of soot from the filtering chamber 341 to the transition chamber 342 in the outer chamber 340, the soot will move from outside to inside, pass through the filter screen 400 corresponding to the filtering chamber 341 and enter the inner chamber 330. During this process, the filter screen 400 corresponding to the filtering chamber 341 filters the soot with a diameter larger than a preset value, and the soot with a diameter smaller than the preset value will pass through the filter screen 400 and come to the inner chamber 330. After the soot passes through the inner chamber 330, it will continue to move from inside to outside and come to the transition chamber 342 of the outer chamber 340 again, and enter the upper cylinder body 200 from the communication groove 220 in the transition chamber 342.

[0034] The internal structure of the upper cylinder body 200 and the internal structure of the lower cylinder body 300 are the same as the structure of the cyclone separator in the prior art. After the soot enters the upper cylinder body 200 tangentially along the communication groove 220, the soot will rotate downward in a spiral manner. The solid particles are thrown onto the inner wall of the upper cylinder body 200 under the action of centrifugal force and fall into the dust collecting port 301 under the action of gravity. The purified gas is discharged from the air outlet pipe 210.

[0035] That is, in this embodiment, the filter screen 400 is used as the front end of cyclone separation and dust removal. Before using the cyclone separation method for dust removal, the filter screen 400 is first used for preliminary filtration to filter the soot with a diameter larger than a preset value, and the filtered soot can be directly sent into the upper cylinder body 200 for secondary dust removal, greatly reducing the processing pressure of the dust treatment device for indoor decoration.

[0036] In this embodiment, the sealing member includes two sealing blocks 500. The two sealing blocks 500 are both arranged in the outer chamber 340 and are arranged in sequence around the first direction in the outer chamber 340. The two sealing blocks 500 are in sliding seal with the filter screen 400.

[0037] By providing two sealing blocks 500, during use, when the soot enters between the two sealing blocks 500 from the air inlet 321, that is, when it enters the filtering chamber 341, it will be blocked by the two sealing blocks 500 and basically cannot pass through. Thus, the soot can only enter the inner chamber 330 from outside to inside through the filter screen 400 corresponding to the filtering chamber 341, and then enter the transition chamber 342 of the outer chamber 340 from inside to outside of the inner chamber 330. And due to the restriction of the sealing blocks 500, the soot in the transition chamber 342 cannot return to the filtering chamber 341 either.

[0038] Furthermore, an insertion block 230 is provided at the lower end of the upper cylinder body 200. The insertion block 230 is inserted into the embedding groove and abuts against the upper end of the filter screen 400, so as to seal the upper end of the inner cavity 330. The lower end of the filter screen 400 abuts against the inner bottom wall of the embedding groove.

[0039] By providing the insertion block 230, the inner cavity 330 is relatively sealed, so that the soot can only flow from the inner cavity 330 to the outer cavity 340 through the filter screen 400 from the inside to the outside. That is, after the soot enters the inner cavity 330, it will not disperse everywhere.

[0040] In this embodiment, the filter screen 400 is rotatably arranged around the first direction, a scraping plate is provided at the inner end of the blocking block 500, and a dust collecting chamber 322 is provided on the outer cylinder 320. The dust collecting chamber 322 communicates with the filtering cavity 341.

[0041] Specifically, an inner runner 331 is provided in the inner cavity 330, an outer runner 343 is provided in the outer cavity 340. Both the inner runner 331 and the outer runner 343 abut against the filter screen 400. Two motors are provided in the lower cylinder body 300. The inner runner 331 and the outer runner 343 are respectively installed on the motors, so that both the inner runner 331 and the outer runner 343 can be rotatably arranged around the first direction, and the rotation directions of the inner runner 331 and the outer runner 343 are opposite.

[0042] Furthermore, there are two inner runners 331. The two inner runners 331 are sequentially arranged around the first direction in the inner cavity 330 and both abut against the filter screen 400. By providing two inner runners 331, the transmission stability is increased.

[0043] By enabling the filter screen 400 to rotate around the first direction, when it is necessary to clean the filter screen 400 corresponding to the filtering cavity 341, the motors are started to drive the inner runner 331 and the outer runner 343 to rotate. The rotation of the inner runner 331 and the outer runner 343 will drive the filter screen 400 to rotate through friction, so that the filter screen 400 and the scraping plate on the blocking block 500 generate relative rotation. Furthermore, the scraping plate can compact and scrape the soot attached to the filter screen 400 to a certain extent. The scraped soot will fall into the dust collecting chamber 322, which is convenient for manual cleaning.

[0044] In this embodiment, the filter screen 400 is elastic, a driving member is provided on the frame 100, and the driving member can drive the filter screen 400 to move along the second direction. A collecting chamber 323 is provided on the outer cylinder 320, and the collecting chamber 323 is on the same side as the driving member. There are two collecting chambers 323.

[0045] Specifically, there are two driving members. The two driving members are sequentially arranged on the frame 100 along the first direction, and the two driving members are respectively located on the upper and lower sides of the filter screen 400. By providing two driving members, the force on the filter screen 400 is more uniform.

[0046] Furthermore, the driving member and the air inlet 321 are oppositely arranged in the second direction.

[0047] In this embodiment, the driving member is a hydraulic telescopic rod 600. The hydraulic telescopic rod 600 passes through the outer cylinder 320 in the second direction. The movement of the hydraulic telescopic rod 600 in the second direction can abut against the filter screen 400, so that the filter screen 400 can move in the second direction.

[0048] Furthermore, the air inlet 321 is close to the upper side of the filter screen 400. In the initial state, the distance from the hydraulic telescopic rod 600 above to the filter screen 400 in the second direction is less than the distance from the hydraulic telescopic rod 600 below to the filter screen 400 in the second direction. That is, the hydraulic telescopic rod 600 above contacts the filter screen 400 first.

[0049] In this embodiment, by setting the driving member, as the filter screen 400 rotates, the hydraulic telescopic rod 600 is started, and the filter screen 400 is pushed inward by the hydraulic telescopic rod 600. When the filter screen 400 (the filter screen 400 corresponding to the filter chamber 341) containing soot rotates to the position where the hydraulic telescopic rod 600 is located, the soot in the transition chamber 342 corresponding to the hydraulic telescopic rod 600 will be pressurized at this time, so that the soot can be extruded through the filter screen 400, the soot on the filter screen 400 is backflushed, and the soot falls. On the basis of the scraping and cleaning, the soot is further cleaned. The cleaned soot will fall into the collection chamber 323, which is convenient for manual treatment, realizing the self-cleaning of the filter screen 400. After the hydraulic telescopic rod 600 retracts, the filter screen 400 will automatically reset based on its own elasticity.

[0050] Alternatively, an elastic member is arranged between the inner cylinder 310 and the filter screen 400. The elastic member is fixedly connected to the inner cylinder 310 and abuts against the filter screen 400, so that the filter screen 400 can be reset under the drive of the elastic member.

[0051] And making the driving member and the air inlet 321 oppositely arranged in the second direction can increase the convection effect of the soot, and further increase the backwashing force on the filter screen 400 after the filter screen 400 moves inward. That is, when the soot enters the inner cavity 330 from the outside through the filter screen 400 from the filter chamber 341, it will be shunted in the inner cavity 330. See the appendix Figure 6 As shown, a part of the soot goes to the left and another part of the soot goes to the right, and finally converges at the position where the driving member is located, generating a certain counterflush, thereby increasing the backwashing force on the filter screen 400.

[0052] Moreover, since the air inlet 321 is close to the upper side of the filter screen 400, more soot adheres to the upper side of the filter screen 400 (compared to the lower side of the filter screen 400). Therefore, the hydraulic telescopic rod 600 above can be made to contact the filter screen 400 first, so as to clean the filter screen 400 from top to bottom, causing the backwash effect of the soot in the inner cavity 330 to gather on the upper side of the filter screen 400, improving the cleaning effect on the filter screen 400.

[0053] In this embodiment, two limiting blocks 332 are fixedly connected in the inner cavity 330. The two limiting blocks 332 are arranged in sequence around the first direction in the inner cavity 330, and air channels are formed in both of the two limiting blocks 332. The two plugging blocks 500 are arranged in one-to-one correspondence with the two limiting blocks 332. The plugging block 500 and the corresponding limiting block 332 are respectively located on the inner and outer sides of the filter screen 400, and both are in sliding seal with the filter screen 400.

[0054] Furthermore, a plurality of first limiting blocks 333 are arranged in the inner cavity 330. The plurality of first limiting blocks 333 are evenly distributed around the first direction in the inner cavity 330, and first flow channels 334 are formed in all of the plurality of first limiting blocks 333. A plurality of second limiting blocks 344 are arranged in the outer cavity 340. The plurality of second limiting blocks 344 are evenly distributed around the first direction in the outer cavity 340. The plurality of first limiting blocks 333 and the plurality of second limiting blocks 344 are arranged in one-to-one correspondence. The first limiting block 333 and the corresponding second limiting block 344 are respectively located on the inner and outer sides of the filter screen 400, and there is a gap between both and the filter screen 400.

[0055] By arranging the limiting blocks 332 and the plugging blocks 500, the position of the filter screen 400 in direct contact with the limiting blocks 332 and the plugging blocks 500 is relatively fixed, that is, the volume of the filtering cavity 341 is relatively fixed, and thus the filter screen 400 corresponding to the filtering cavity 341 is more stable.

[0056] By arranging the first limiting blocks 333 and the second limiting blocks 344, when the hydraulic telescopic rod 600 drives the filter screen 400 to move along the second direction, the filter screen 400 can move between the first limiting block 333 and the second limiting block 344 corresponding to the first limiting block 333, and forming the first flow channels 334 in the first limiting blocks 333 can facilitate the flow of the soot that has been preliminarily filtered in the inner cavity 330.

[0057] Combined with the above embodiments, the specific working process is as follows:

[0058] In use, air is introduced from the air inlet 321 by means of an air pump. After the air enters the filter chamber 341 of the outer chamber 340 from the air inlet 321, it will be blocked by two blocking blocks 500 and can hardly pass through. As a result, the soot can only enter the inner chamber 330 from the outside to the inside through the filter screen 400 corresponding to the filter chamber 341. In this process, the filter screen 400 corresponding to the filter chamber 341 filters out the soot with a diameter larger than the preset value, and the soot with a diameter smaller than the preset value will pass through the filter screen 400 and come to the inner chamber 330. In the inner chamber 330, it passes through the first flow channel 334 opened on the first limiting block 333, and then enters the transition chamber 342 of the outer chamber 340 from the inside to the outside of the inner chamber 330, and enters the upper cylinder 200 from the communication groove 220 in the transition chamber 342.

[0059] The internal structure of the upper cylinder 200 and the internal structure of the lower cylinder 300 are both the same as the structure of the cyclone separator in the prior art. After the soot enters the upper cylinder 200 tangentially along the communication groove 220, the soot will rotate downward in a spiral manner. The solid particles are thrown onto the inner wall of the upper cylinder 200 under the action of centrifugal force and fall into the dust collection port 301 under the action of gravity. The purified gas is discharged from the air outlet pipe 210.

[0060] When it is necessary to clean the filter screen 400 corresponding to the filter chamber 341, start the motor to drive the inner runner 331 and the outer runner 343 to rotate. The rotation of the inner runner 331 and the outer runner 343 will drive the filter screen 400 to rotate through friction, so that the filter screen 400 and the scraper on the blocking block 500 generate relative rotation. As a result, the scraper can compact and scrape the soot attached to the filter screen 400 to a certain extent. The scraped soot will fall into the dust collection chamber 322, which is convenient for manual cleaning.

[0061] As the filter screen 400 rotates, start the hydraulic telescopic rod 600 and push the filter screen 400 inward through the hydraulic telescopic rod 600. When the filter screen 400 containing soot (the filter screen 400 corresponding to the filter chamber 341) rotates to the position of the hydraulic telescopic rod 600, the soot in the transition chamber 342 corresponding to the hydraulic telescopic rod 600 at this time will be compressed. As a result, the soot can be squeezed through the filter screen 400, and the soot on the filter screen 400 is backflushed, so that the soot falls. On the basis of the scraper cleaning, the soot is further cleaned. The cleaned soot will fall into the collection chamber 323, which is convenient for manual handling.

[0062] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dust treatment device for indoor decoration, characterized in that: It includes a frame, an upper cylinder, a lower cylinder and a filter screen; the upper cylinder and the lower cylinder are arranged in sequence in the first direction, and the first direction is the vertical direction; the upper cylinder is cylindrical, an air outlet pipe is arranged at the upper end of the upper cylinder, the lower cylinder is conical, a dust collection port is opened on the lower cylinder, and the lower cylinder is fixedly connected to the frame; the upper cylinder is located at the upper end of the lower cylinder, and the lower end of the upper cylinder is fixedly connected to the large end of the lower cylinder; an embedding groove is opened on the lower cylinder, the embedding groove is coaxially arranged with the lower cylinder, and the filter screen is nested in the embedding groove and is conical; the filter screen is used to filter the soot with a diameter greater than a preset value; the lower cylinders on both the inner and outer sides of the filter screen are respectively called the inner cylinder and the outer cylinder, the side close to the vertical central axis of the lower cylinder along the second direction is called the inner side, and the side far from the vertical central axis of the lower cylinder is called the outer side, and the second direction is the radial direction of the lower cylinder; an inner cavity is defined between the inner cylinder and the filter screen, and an outer cavity is defined between the outer cylinder and the filter screen; an air inlet is opened on the outer cylinder, the air inlet is communicated with the outer cavity, a blocking member is arranged in the outer cavity, the blocking member divides the outer cavity into a filtering cavity and a transition cavity, and the filtering cavity and the transition cavity are independent of each other. In the initial state, the filtering cavity faces the air inlet, and a communicating groove is opened on the upper cylinder, the communicating groove is spiral, and the communicating groove communicates the upper cylinder and the transition cavity; the blocking member includes two blocking blocks, both of the two blocking blocks are arranged in the outer cavity and are arranged in sequence around the first direction in the outer cavity, and the two blocking blocks are in sliding seal with the filter screen; the filter screen is rotatably arranged around the first direction, and a scraping plate is arranged at the inner end of the blocking block, and a dust collection chamber is arranged on the outer cylinder, and the dust collection chamber is communicated with the filtering cavity; an inner runner is arranged in the inner cavity, and an outer runner is arranged in the outer cavity, both the inner runner and the outer runner are in contact with the filter screen, both the inner runner and the outer runner are rotatably arranged around the first direction, and the rotation directions of the inner runner and the outer runner are opposite.

2. The dust treatment device for interior decoration according to claim 1, wherein: The filter screen is elastic, a driving member is arranged on the frame, and the driving member can drive the filter screen to move along the second direction; a collection chamber is arranged on the outer cylinder, and the collection chamber and the driving member are on the same side.

3. The dust treatment device for indoor decoration according to claim 2, wherein: The driving member and the air inlet are oppositely arranged in the second direction.

4. The dust treatment device for interior decoration according to claim 2, wherein: The driving member is a hydraulic telescopic rod, the hydraulic telescopic rod passes through the outer cylinder along the second direction, and the movement of the hydraulic telescopic rod along the second direction can be in contact with the filter screen, so that the filter screen can move along the second direction.

5. The dust treatment device for indoor decoration according to claim 1, characterized in that: An insertion block is arranged at the lower end of the upper cylinder, the insertion block is inserted into the embedding groove and abuts against the upper end of the filter screen to seal the upper end of the inner cavity; the lower end of the filter screen abuts against the inner bottom wall of the embedding groove.

6. The dust treatment device for interior decoration according to claim 1, characterized in that: Two limiting blocks are fixedly connected in the inner cavity, the two limiting blocks are arranged in sequence around the first direction in the inner cavity, and air channels are opened on both of the two limiting blocks; the two blocking blocks are arranged in one-to-one correspondence with the two limiting blocks, the blocking block and the corresponding limiting block are respectively located on the inner and outer sides of the filter screen, and both are in sliding seal with the filter screen.

7. An indoor decoration dust treatment device according to claim 6, characterized in that: A plurality of first limiting blocks are arranged in the inner cavity, and the plurality of first limiting blocks are evenly distributed in the inner cavity around a first direction. A plurality of second limiting blocks are arranged in the outer cavity, and the plurality of second limiting blocks are evenly distributed in the outer cavity around the first direction. The plurality of first limiting blocks and the plurality of second limiting blocks are arranged in one-to-one correspondence. The first limiting block and the corresponding second limiting block are respectively located on the inner and outer sides of the filter screen, and there is a gap between each of them and the filter screen.

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