Ventilation and dust removal device for house building construction

Abstract

The invention discloses a ventilation and dust removal device for house building construction, and relates to the technical field of house building construction, the ventilation and dust removal device comprises a base, a fixing frame is arranged on the base, a collecting device is arranged above the fixing frame, an air suction part I is arranged below the collecting device, and a filtering structure I is arranged on the side, close to the base, of the air suction part I; the first filtering structure is connected with the base, a second filtering structure connected with the first filtering structure is arranged above the first filtering structure, and a second air suction piece is arranged on the second filtering structure. Dust gas generated by construction in a house is extracted through the first air suction structure, large-particle dust in air is adsorbed through the first filter part in the collection frame, dust removal treatment is conducted on the dust gas through the first filter structure and the second filter structure, and then the filtered air is fed into a room through the second air suction part. Therefore, the concentration of dust generated by house construction is gradually reduced, and indoor air is ventilated and dedusted.

Description

Technical Field

[0001] The present application relates to the technical field of housing construction, and in particular to a ventilation and dust removal device for housing construction. Background Art

[0002] Dust is always inevitable during indoor construction. Working in a dusty environment for a long time will cause extremely serious harm to human health.

[0003] Most existing dust removal devices transport dusty gases to filters through pipes for filtration. However, excessive dust is generated during house construction, and the dust particles are large. The filter element of the filter is easily clogged by dust, making ventilation and dust removal difficult.

[0004] With respect to the above-mentioned related technologies, the inventor believes that the dust particles in the indoor air during the house construction process are relatively large, and it is difficult to ventilate and remove dust through filters. Summary of the invention

[0005] The purpose of this application is to provide a ventilation and dust removal device for house construction, so as to improve the problem of excessive dust generated during house construction and difficulty in ventilation and dust removal.

[0006] The present application provides a ventilation and dust removal device for house construction, which adopts the following technical solution: A ventilation and dust removal device for house construction comprises a base, a fixing frame is arranged on the base, a collecting device is arranged above the fixing frame, an air suction piece is arranged below the collecting device, a filter structure 1 is arranged on the side of the air suction piece 1 close to the base, the filter structure 1 is connected to the base, a filter structure 2 connected to the filter structure 1 is arranged above the filter structure 1, and an air suction piece 2 is arranged on the filter structure 2.

[0007] By adopting the above technical scheme, the collecting device is arranged on the fixed frame on the base, the dust gas generated by the construction in the house is sucked and collected by the suction piece one connected to the collecting device, the air is preliminarily dust-removed by the collecting frame and the filter structure one, the dust gas is further dust-removed by the filter structure two connected to the filter structure one, and then the filtered air is sent into the room by the suction piece two, thereby gradually reducing the dust concentration generated by the house construction while ensuring the fluidity of the air.

[0008] Optionally, the collecting device includes a collecting frame, which is arranged on the fixed frame, a connecting groove 1 is provided on the side wall of the collecting frame, a connecting pipe 1 communicating with the connecting groove 1 is provided on the inner wall of the collecting frame, a mounting groove 1 is provided on the side of the connecting groove 1 away from the collecting frame, a ventilation plate is provided in the mounting groove 1, a filter element 1 is provided on the side of the ventilation plate close to the collecting frame, the filter element 1 is in contact with the inner wall of the connecting pipe 1, a connecting groove 2 is provided at the bottom of the collecting frame, a connecting pipe 2 communicating with the connecting pipe 1 is provided in the connecting groove 2, and the suction element 1 is connected to the connecting pipe 2.

[0009] By adopting the above technical scheme, a connecting groove 1 is opened on the side wall of the collection frame, a ventilation plate and a filter element 1 are arranged in the connecting groove 1, and each connecting groove is connected with a connecting pipe 1, and the dust gas in the room is sucked into the collection frame through an air suction structure 1 connected to the connecting pipe 1 to collect the dust gas. At the same time, the filter element 1 connected to the ventilation plate performs preliminary filtration on the dust gas to block large dust particles in the filter element 1, thereby reducing the dust concentration of the dust gas and preventing large dust particles from damaging the suction element 1 and clogging the next-level filtration structure.

[0010] Optionally, a support frame is provided on the base and is abutted against the bottom of the suction member one, a connecting pipe three is provided on the side of the suction member one close to the filtering structure one, a pneumatic member is provided on the side of the connecting pipe three away from the suction member one, the pneumatic member is connected to an end of the support frame away from the suction member one, a connecting pipe four is provided on the side of the pneumatic member away from the suction member one, and the connecting pipe four is connected to the filtering structure one.

[0011] By adopting the above technical solution, a support frame is set on the base to support the suction member 1 to prevent the suction member 1 from being separated from the connecting pipe 2 during operation. The pneumatic member is connected to the connecting pipe 4 on the suction member 1, and the pneumatic member is used to pressurize the air sent from the suction member 1 to the filter structure 1, so that the air can pass through the filter structure 1 faster to complete the filtration, and prevent the air pressure from being too low, so that the air cannot enter the filter structure 1, thereby completing the filtration of small and medium-sized dust in the air.

[0012] Optionally, the filtering structure one includes a liquid tank, and a connecting groove three corresponding to a connecting pipe four is provided at one end of the liquid tank close to the pneumatic component, and the connecting pipe four passes through the connecting groove three and contacts the bottom of the liquid tank, and a connecting groove four is provided above the liquid tank, and the connecting groove four corresponds to the filtering structure two, and a water outlet pipe is provided on the side of the bottom of the liquid tank away from the connecting pipe four, and a water inlet pipe is provided on the end of the top of the liquid tank away from the connecting groove four.

[0013] By adopting the above technical solution, the connecting pipe four is passed through the connecting groove three on the side wall of the liquid tank, so that the connecting pipe four is located below the liquid level in the liquid tank and contacts the bottom of the liquid tank, so that the air input by the connecting pipe four contacts the water, and the small and medium-sized dust in the air is adsorbed and processed, and the air is further filtered to reduce the concentration of dust in the air.

[0014] Optionally, the filtering structure 2 includes a filter box, which is arranged on an end of the fixed frame away from the collecting frame, a connecting groove 5 is opened at one end of the filter box, a connecting pipe 5 is arranged on the connecting groove 5, and the connecting pipe 5 is connected to the connecting groove 4 on the liquid tank, a filter element 2 is arranged at the end of the filter box away from the connecting groove 5, the filter element 2 is in contact with the inner wall of the filter box, and a connecting groove 6 is arranged at the end above the filter box away from the connecting groove 5, and the connecting groove 6 is connected to the air suction element 2.

[0015] By adopting the above technical scheme, the filter box is arranged on one end of the fixed frame away from the collecting frame, and the air adsorbed and filtered by the liquid tank is sent into the filter box. A second filter element is arranged in the filter box, and the air is filtered by the second filter element in the filter box. The second air suction element arranged on the filter box draws the air in the filter box out and transports it into the room, while increasing the filtering speed of the air in the filter box and accelerating the dust removal process of the air.

[0016] Optionally, a connecting tube six connected to the connecting groove six is ​​provided below the second air suction member, an air outlet is provided on the side of the second air suction member away from the collecting frame, a baffle is rotatably provided in the connecting tube six, a support rod is rotatably provided on the side of the baffle close to the second air suction member, and an elastic member is provided between the support rod and the connecting tube six.

[0017] By adopting the above technical solution, a baffle is arranged in the connecting pipe six between the suction member two and the filter box, and the unfiltered air outside the suction member two is blocked by the baffle. When the suction member two is working, the suction member two draws out the air in the filter box, the baffle turns to the suction member two, the elastic member contracts, and the air passes through the connecting pipe six smoothly. After the suction member two stops working, the elastic member returns to its original position, and the baffle cuts off the connecting pipe six to block the air outside the suction member two, thereby preventing the unfiltered and dust-removed air from flowing into the filter box and damaging the filter member two.

[0018] Optionally, an isolation member 1 is provided on the inner side wall of the installation groove 1 of the collection frame, and the isolation member 1 is abutted against the side of the ventilation plate close to the installation groove 1. A card slot is provided on the side of the ventilation plate close to the filter 1, and the card slot is in contact with the side wall of the filter 1.

[0019] By adopting the above technical solution, an isolation member is provided in the installation groove 1 of the collection frame, and the air outside the ventilation plate is isolated by the isolation member 1 to prevent the air that has not been filtered by the filter member 1 connected to the ventilation plate from directly entering the connecting pipe 1. Through the slot provided on the ventilation plate, the filter member 1 can be directly connected to the ventilation plate through the slot, which facilitates the disassembly and replacement of the filter member 1.

[0020] Optionally, a one-way valve is provided on the connecting pipe four between the air pressure part and the liquid tank, a dispersion pipe is provided at the pipe opening of the connecting pipe four below the liquid surface in the liquid tank, and a plurality of dispersion grooves are opened on the dispersion pipe.

[0021] By adopting the above technical solution, a one-way valve is arranged on the connecting pipe four to prevent the water in the liquid tank from flowing back into the air pressure part and the air suction part one, thereby preventing the air pressure part and the air suction part from causing damage thereto. The air entering the liquid tank is dispersed through a dispersion pipe connected to the pipe mouth of the connecting pipe four, so that the air and the water in the liquid tank are in more complete contact, thereby facilitating the adsorption and filtration of dust in the air.

[0022] Optionally, a second installation groove is provided on the side of the filter box away from the collecting frame, a door panel is rotatably provided on the second installation groove, a guide block is provided on the inner wall of the filter box, a guide groove corresponding to the second filter element is provided on the guide block, an isolation piece second is provided in the guide groove and fits with the side wall of the second filter element, and an isolation piece three is provided on the door panel and fits with the second installation groove.

[0023] By adopting the above technical scheme, the air outside the filter box is blocked by the isolation member 3 arranged on the door panel, and a guide block is arranged on the inner wall of the filter box. The filter element 1 is connected to the filter box through the guide groove on the guide block, which is convenient for the installation and disassembly of the filter element 2. The air in the filter box is blocked by the isolation member 2 arranged on the guide groove, so that the filter element 2 can effectively filter the air, preventing the air from being directly discharged by the suction member 2 without being filtered.

[0024] Optionally, a groove corresponding to the second filter element is provided on one side of the door panel close to the second filter element, a sealing element fitted with the second filter element is provided in the groove, and the sealing element fits with the guide block.

[0025] By adopting the above technical solution, a groove is arranged on one side of the door panel close to the filter element 2, which fits with the side wall of the filter element 2, so that the seal in the groove blocks the air on both sides of the filter element 2, preventing unfiltered air from being drawn out from the gap by the suction element 2 and transported into the room.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The collecting device is arranged on a fixed frame on the base, and the dust gas generated by the construction in the house is collected by suction through the suction piece 1 connected to the collecting device, and the air is preliminarily dust-removed through the collecting frame and the filtering structure 1, and the dust gas is further dust-removed through the filtering structure 2 connected to the filtering structure 1, and then the filtered air is sent into the room through the suction piece 2, so as to gradually reduce the dust concentration generated by the house construction and ensure the fluidity of the air; 2. A connecting groove 1 is provided on the side wall of the collecting frame, a ventilation plate and a filter 1 are arranged in the connecting groove 1, and each connecting groove is connected with a connecting pipe 1. The dust gas in the room is sucked into the collecting frame through an air suction structure 1 connected to the connecting pipe 1, and the dust gas is collected. At the same time, the filter 1 connected to the ventilation plate performs preliminary filtering on the dust gas, blocks large dust particles in the filter 1, reduces the dust concentration of the dust gas, and prevents large dust particles from damaging the air suction member 1 and clogging the next-level filter structure; 3. The filter box is arranged on one end of the fixed frame away from the collecting frame, and the air after being adsorbed and filtered by the liquid tank is sent into the filter box. A filter element 2 is arranged in the filter box, and the air is filtered through the filter element 2 in the filter box. The air suction element 2 arranged on the filter box draws the air in the filter box out and transports it into the room, while increasing the filtering speed of the air in the filter box and accelerating the dust removal process of the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The present invention is an overall schematic diagram of a ventilation and dust removal device for building construction.

[0028] Figure 2 The present invention is a partial cross-sectional view of a ventilation and dust removal device for building construction.

[0029] Figure 3 yes Figure 2 A partial enlarged view of middle A.

[0030] Figure 4 yes Figure 2 A partial enlarged view of B.

[0031] Figure 5 It is a partial cross-sectional view of the second filtering structure.

[0032] In the figure, 1, base; 11, fixing frame; 12, supporting frame; 2, collecting device; 21, collecting frame; 211, connecting slot 1; 212, connecting pipe 1; 213, mounting slot 1; 214, connecting slot 2; 215, connecting pipe 2; 216; isolating element 1; 22, ventilation plate; 221, card slot; 23, filtering element 1; 3, air suction element 1; 31, connecting pipe 3; 32, air pressure element; 321, connecting pipe 4; 33, one-way valve; 34, dispersion pipe; 341, dispersion slot; 4, filtering structure 1; 41, liquid tank; 411, connecting Slot three; 412, connecting slot four; 42, water outlet pipe; 43, water inlet pipe; 5, filter structure two; 51, filter box; 511, connecting slot five; 512, connecting pipe five; 513, connecting slot six; 514, installation slot two; 52, door panel; 521, isolation piece three; 522, groove; 523, sealing piece; 53, guide block; 531, guide slot; 532, isolation piece two; 54, filter piece two; 6, air suction piece two; 61, connecting pipe six; 611, baffle plate; 612, support rod; 613, elastic piece; 62, air outlet. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1 -Attached Figure 5 , further details of this application are given.

[0034] A ventilation and dust removal device for housing construction, referring to Figure 1 and Figure 2 , including a base 1, a metal fixing frame 11 is welded above the base 1, a collecting frame 21 is fixed above the fixing frame 11 with bolts, a connecting groove 211 is opened on the side wall of the collecting frame 21, a connecting pipe 212 communicating with the connecting groove 211 is fixed in the collecting frame 21 with bolts, the connecting pipe 212 is a plastic pipe fitting, a pipe mouth of the connecting pipe 212 is provided with a sealant, a mounting groove 213 is provided on a side of the connecting groove 211 away from the mounting groove 213, an isolating piece 216 is pasted on the mounting groove 213, the isolating piece 216 is a rubber sealing strip, the ventilation plate 22 is fixed in the mounting groove 213 with bolts, and the ventilation plate 22 is fixed in the mounting groove 213 with bolts. A card slot 221 is provided on the wind plate 22, and a filter element 23 is arranged in the card slot 221 and connected to the ventilation plate 22. The filter element 23 is a filter bag with a metal frame, which contacts the inner wall of the connecting pipe 212 to filter large particles of dust in the air. A connecting slot 214 is provided below the collecting frame 21, and a plastic connecting pipe 215 is passed through the connecting slot 214 and connected to the connecting pipe 212 by bolts and sealant. The suction element 3 is connected to the connecting pipe 215 by sealing bolts. The suction element 3 is a centrifugal exhaust fan driven by a motor and connected to a power supply. The suction element 3 is fixed to the support frame 12 welded on the base 1 by bolts.

[0035] Reference Figures 1 to 4 The liquid tank 41 is fixed to the base 1 by bolts, the side of the air suction piece 3 close to the liquid tank 41 is fixed with a sealing bolt to the plastic connecting pipe 31, and the air pressure piece 32 is fixed to the pipe mouth of the plastic connecting pipe 31 by a sealing bolt. The air pressure piece 32 is an air compressor, and the connecting pipe 4 321 connected to the air compressor contacts the bottom of the liquid tank 41 through the connecting groove 3 411 opened on the liquid tank 41. The connecting pipe 4 321 is a plastic pipe fitting with a threaded pipe mouth, which is connected to the connecting groove 3 411 by a sealant. A one-way valve 33 is installed on the connecting pipe 4 321 to prevent water from flowing back into the air pressure The pipe mouth of the connecting pipe 4321 is connected to the dispersion pipe 34 through a thread. The dispersion pipe 34 is provided with a dispersion groove 341 to divide the gas entering the liquid tank 41 so that the air and water can contact more fully. A connecting groove 412 is provided on the top of the liquid tank 41 to seal the connecting pipe 512 sealed in the connecting groove 511 provided on the filter box body 51. The water outlet pipe 42 is sealed on the side of the liquid tank 41 away from the connecting pipe 4321. The water inlet pipe 43 is sealed on the top of the liquid tank 41. Water stop valves are installed on the water outlet pipe 42 and the water inlet pipe 43.

[0036] Reference Figures 1 to 5 The filter box 51 is fixed to the end of the fixing frame 11 away from the collecting frame 21 with bolts, and a second installation groove 514 is provided on the side of the filter box 51 away from the collecting frame 21. The door panel 52 is connected to the second installation groove 514 by hinge rotation, and the third isolation piece 521 corresponding to the second installation groove 514 is pasted on the door panel 52. The third isolation piece 521 is a sealing strip to seal the filter box 51. A guide block 53 is fixed to the inner wall of the filter box 51 with a bee bolt, and a guide groove 531 is provided on the guide block 53 An isolating member 532 is arranged in the guide groove 531, and the isolating member 532 is a sealing rubber pad. The filtering member 54 is arranged in the guide groove 531 and fits with the sealing member 523, so as to facilitate the replacement of the filtering member 54. The filtering member 54 is a dust filter element. A groove 522 corresponding to the filtering member 54 is provided on the door panel 52. The sealing member 523 is pasted in the groove 522 and fits with the filtering member 54 and the guide block 53, so as to block the gas on both sides of the filtering member 54 and prevent the gas from being discharged into the room without being filtered.

[0037] Reference Figures 1 to 5A connection groove 6 513 is provided at one end of the filter box 51 away from the connection groove 5 511, and a plastic connection pipe 61 is sealed and connected to the connection groove 6 513. The suction piece 2 6 is fixed to the filter box 51 with a sealing bolt. The suction piece 2 6 is an air pump. The suction piece 2 6 is connected to an air outlet 62 by bolts to deliver the filtered air in the filter box 51 into the room. A baffle plate 611 is rotatably arranged in the connection pipe 6 61 through a rotating shaft. A support rod 612 is rotatably arranged on the side of the baffle plate 611 close to the air pump. A support rod 612 is arranged on the support rod 612. There is an elastic member 613, which is a spring. The unfiltered air outside the suction member 2 6 is blocked by the baffle plate 611. When the suction member 2 6 is working, the suction member 2 6 draws out the air in the filter box 51, and the baffle plate 611 turns to the suction member 2 6. The spring contracts, and the air passes smoothly through the connecting pipe 61. After the suction member 2 6 stops working, the spring is reset, and the baffle plate 611 cuts off the connecting pipe 61 to block the air outside the suction member 2 6, thereby preventing the unfiltered and dust-removed air from flowing into the filter box 51 and damaging the filter member 2 54.

[0038] The implementation principle of the embodiment of the present application is: The filter element 23 is connected to the ventilation plate 22 and is set in the installation groove 213 of the collection frame 21. The filter element 2 54 is set in the filter box 51 through the guide block 53 set in the filter box 51 and is sealed to the inner wall of the filter box 51. The door panel 52 is closed to seal the filter box 51. The worker puts the device into the construction house and starts the air suction element 3 to draw the indoor air into the connecting pipe 212 in the collection frame 21 through the ventilation plate 22. The filter element 23 connected to the ventilation plate 22 blocks the large particles of dust in the air. The indoor air is preliminarily filtered by the filter element 23 set on the ventilation plate 22 to prevent excessive dust from clogging the subsequent filtration. The filter element 23 is snapped in The ventilation plate 22 is convenient for disassembling the filter element 23 and cleaning the dust on the filter element 23. Then the suction element 3 sends the air into the connecting pipe 31, and the air pressure element 32 pressurizes and transports it into the liquid tank 41. It is dispersed through the dispersion pipe 34 and fully contacts with the water in the liquid tank 41, and the small and medium-sized particles of dust in the air are dissolved and filtered. Then it enters the filter box 51, and the suction element 2 6 draws the air in the filter box 51, so that the air passes through the filter element 2 54 in the filter box 51 to complete the filtration. The baffle plate 611 is opened under the action of the suction element 2 6, and then the filtered air passes through the baffle plate 611 and is transported to the room by the suction element 2 6, gradually reducing the dust concentration in the indoor air, and ventilating and dust removing the construction house.

[0039] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A ventilation and dust removal device for building construction, comprising a base (1), characterized in that: A fixing frame (11) is arranged on the base (1), a collecting device (2) is arranged above the fixing frame (11), an air suction member (3) is arranged below the collecting device (2), a filtering structure (4) is arranged on a side of the air suction member (3) close to the base (1), the filtering structure (4) is connected to the base (1), a filtering structure (5) connected to the filtering structure (4) is arranged above the filtering structure (4), and an air suction member (6) is arranged on the filtering structure (5).

2. A ventilation and dust removal device for building construction according to claim 1, characterized in that: The collecting device (2) comprises a collecting frame (21), the collecting frame (21) being arranged on the fixing frame (11), a connecting groove (211) being provided on a side wall of the collecting frame (21), a connecting pipe (212) being provided on an inner side wall of the collecting frame (21) and communicating with the connecting groove (211), a mounting groove (213) being provided on a side of the connecting groove (211) away from the collecting frame (21), and a connecting pipe (212) being provided on the inner side wall of the collecting frame (21) and communicating with the connecting groove (211). A ventilation plate (22) is provided, and a filter element (23) is provided on one side of the ventilation plate (22) close to the collecting frame (21), and the filter element (23) is in contact with the inner wall of the connecting pipe (212). A connecting groove (214) is provided below the collecting frame (21), and a connecting pipe (215) communicating with the connecting pipe (212) is provided in the connecting groove (214), and the air suction element (3) is connected to the connecting pipe (215).

3. A ventilation and dust removal device for housing construction according to claim 2, characterized in that: The base (1) is provided with a support frame (12) which abuts against the lower side of the suction member (3); a connecting pipe (3) is provided on the side of the suction member (3) close to the filtering structure (4); a pneumatic component (32) is provided on the side of the connecting pipe (31) away from the suction member (3); the pneumatic component (32) is connected to an end of the support frame (12) away from the suction member (3); a connecting pipe (321) is provided on the side of the pneumatic component (32) away from the suction member (3); and the connecting pipe (321) is connected to the filtering structure (4).

4. A ventilation and dust removal device for building construction according to claim 3, characterized in that: The filtering structure one (4) comprises a liquid tank (41), and a connecting groove three (411) corresponding to the connecting pipe four (321) is provided at one end of the liquid tank (41) close to the air pressure part (32), and the connecting pipe four (321) passes through the connecting groove three (411) and contacts the bottom of the liquid tank (41), and a connecting groove four (412) is provided at the top of the liquid tank (41), and the connecting groove four (412) corresponds to the filtering structure two (5), and a water outlet pipe (42) is provided at a side of the bottom of the liquid tank (41) away from the connecting pipe four (321), and a water inlet pipe (43) is provided at an end of the top of the liquid tank (41) away from the connecting groove four (412).

5. A ventilation and dust removal device for housing construction according to claim 4, characterized in that: The second filtering structure (5) comprises a filtering box (51), the filtering box (51) being arranged on one end of the fixing frame (11) away from the collecting frame (21), a connecting groove (511) being provided at one end of the filtering box (51), a connecting pipe (512) being provided on the connecting groove (511), the connecting pipe (512) being connected to the connecting groove (412) on the liquid tank (41), a filtering element (54) being provided at one end of the filtering box (51) away from the connecting groove (511), the filtering element (54) being in contact with the inner wall of the filtering box (51), a connecting groove (6) being provided at one end of the upper part of the filtering box (51) away from the connecting groove (511), the connecting groove (6) being connected to the second air suction element (6).

6. A ventilation and dust removal device for building construction according to claim 5, characterized in that: A connecting pipe six (61) connected to the connecting groove six (513) is arranged below the second air suction member (6); an air outlet (62) is arranged on the side of the second air suction member (6) away from the collecting frame (21); a baffle plate (611) is rotatably arranged in the connecting pipe six (61); a support rod (612) is rotatably arranged on the side of the baffle plate (611) close to the second air suction member (6); and an elastic member (613) is arranged between the support rod (612) and the connecting pipe six (61).

7. A ventilation and dust removal device for building construction according to claim 2, characterized in that: An isolation piece (216) is provided on the inner side wall of the installation groove (213) of the collection frame (21), and the isolation piece (216) abuts against a side of the ventilation plate (22) close to the installation groove (213). A retaining groove (221) is provided on a side of the ventilation plate (22) close to the filter element (23), and the retaining groove (221) contacts the side wall of the filter element (23).

8. A ventilation and dust removal device for building construction according to claim 4, characterized in that: A one-way valve (33) is provided on the connecting pipe four (321) between the air pressure part (32) and the liquid tank (41), and a dispersion pipe (34) is provided at the pipe opening of the connecting pipe four (321) below the liquid surface in the liquid tank (41), and a plurality of dispersion grooves (341) are provided on the dispersion pipe (34).

9. A ventilation and dust removal device for building construction according to claim 5, characterized in that: A second installation groove (514) is provided on a side of the filter box (51) away from the collecting frame (21); a door panel (52) is rotatably provided on the second installation groove (514); a guide block (53) is provided on the inner side wall of the filter box (51); a guide groove (531) corresponding to the second filter element (54) is provided on the guide block (53); a second isolation element (532) abutting against the side wall of the second filter element (54) is provided in the guide groove (531); and a third isolation element (521) abutting against the second installation groove (514) is provided on the door panel (52).

10. A ventilation and dust removal device for building construction according to claim 9, characterized in that: A groove (522) corresponding to the second filter element (54) is provided on one side of the door plate (52) close to the second filter element (54), a sealing member (523) in contact with the second filter element (54) is provided in the groove (522), and the sealing member (523) is in contact with the guide block (53).

Images