CN118442660A - A building curtain wall indoor ventilation device for engineering decoration - Google Patents

Abstract

The present invention relates to the technical field of ventilation devices, and specifically to an indoor ventilation device for a building curtain wall used for engineering decoration, comprising a mobile base, an air extraction mechanism, a first filter mechanism and a second filter mechanism; the mobile base; the air extraction mechanism is placed on the mobile base; the first filter mechanism comprises a first filter component and a first connecting structure, the first filter component is horizontally arranged on the mobile base, the first connecting structure is arranged at one end of the first filter component, and one end of the first connecting structure is connected to the air extraction mechanism; the second filter mechanism comprises a second filter component and a third connecting structure, the second filter component is vertically arranged on the mobile base, the third connecting structure is arranged at the lower end of the second component, and the third connecting structure is connected to the other end of the first connecting structure; the present invention arranges the first filter mechanism and the second filter mechanism, thereby accelerating the efficiency of exhausting indoor air of the building curtain wall to the outdoors, and improving the comfort of staff working indoors in the building curtain wall.

Description

A building curtain wall indoor ventilation device for engineering decoration

Technical Field

The invention relates to the technical field of ventilation devices, and in particular to an indoor ventilation device of a building curtain wall for engineering decoration.

Background technique

Curtain wall is the outer wall of the building, which is non-load-bearing and is hung like a curtain, so it is also called "curtain wall". It is a lightweight wall with decorative effect commonly used in modern large and high-rise buildings. It is composed of panels and supporting structure systems, which can have a certain displacement ability relative to the main structure or a certain deformation ability itself, and is not subject to the action of the main structure. Since the facades of high-rise buildings now almost all adopt the architectural method of integral glass curtain walls, most offices are designed as closed window spaces, which is mainly to reduce the energy loss caused by opening windows, in order to achieve the effect of keeping warm in winter and cooling in summer. However, during the decoration process, the ventilation equipment inside the floor has not been installed, and the harmful gases and dust generated during the decoration process cannot be discharged, which will affect the health of the construction workers.

Chinese patent CN216716475U discloses an indoor ventilation device for building curtain walls used for engineering decoration, and its working principle is: a negative pressure environment is provided for an indoor unit through an outdoor unit so that dust can be absorbed by the indoor unit, a grid plate in the indoor unit is used to block debris, and a water pump and a sprinkler pipe are used to continuously sprinkle water on a water storage sponge, and the water is filtered through the water storage sponge so that the water can be recycled, and the water storage sponge is used as a medium for absorbing harmful substances in the air, so that the exhausted air will not pollute the environment.

The above scheme still has the following problems:

1. The indoor space of the building curtain wall is large. If the indoor unit is placed horizontally, the indoor unit has a higher efficiency in absorbing the air at the height layer where it is located, and a lower efficiency in absorbing the air at the height layer higher than the indoor unit. If the indoor unit is set vertically, there are more debris in the air at the lower part of the building curtain wall due to the effect of gravity on the debris in the air, and the indoor unit has a lower efficiency in absorbing the air at the lower part of the building curtain wall.

2. When the outdoor unit is working, the air pressure inside the indoor unit is also different. More air will enter the indoor unit from the place with lower air pressure, causing part of the indoor unit to be overly involved in the filtering process.

Summary of the invention

In view of the above problems, a building curtain wall indoor ventilation device for engineering decoration is provided. The present invention is provided with a first filtering mechanism and a second filtering mechanism, thereby accelerating the efficiency of exhausting indoor air of the building curtain wall to the outside and improving the comfort of workers working indoors in the building curtain wall.

In order to solve the problems of the prior art, the present invention provides an indoor ventilation device for a building curtain wall for engineering decoration, comprising a mobile base, an exhaust mechanism, a first filter mechanism and a second filter mechanism; a mobile base; the exhaust mechanism is placed on the mobile base, and when the ventilation device is used, the exhaust mechanism can be removed from the mobile base and installed at a ventilation location of the building curtain wall; the first filter mechanism comprises a first filter component and a first connecting structure, the first filter component is horizontally arranged on the mobile base, the first connecting structure is arranged at one end of the first filter component, and one end of the first connecting structure is connected to the exhaust mechanism; the second filter mechanism comprises a second filter component and a third connecting structure, the second filter component is vertically arranged on the mobile base, the third connecting structure is arranged at the lower end of the second component, and the third connecting structure is connected to the other end of the first connecting structure.

Preferably, the first filtering mechanism also includes a second connecting structure, the second connecting structure and the first connecting structure are respectively arranged at two ends of the first filtering assembly, the second connecting structure is connected to the air extraction mechanism, and the second filtering mechanism also includes a docking adjustment structure, the docking adjustment structure is arranged on the mobile base, and the docking adjustment structure is arranged at the lower end of the second connecting structure.

Preferably, the first connection structure includes a second filter assembly and a first annular cover; the second filter assembly is arranged on one side of the first filter assembly; the first annular cover is arranged on one side of the second filter assembly, and the first annular cover is connected to the air extraction mechanism.

Preferably, the first connecting structure further comprises a first cleaning assembly, and the first cleaning assembly is arranged inside the first annular cover.

Preferably, the first filtering mechanism further includes two first solenoid valves, and the two first solenoid valves correspond to the first connecting structure and the second connecting structure respectively.

Preferably, the first filtering mechanism further includes an air guiding structure, which connects the first connecting structure, the second connecting structure and the air extraction mechanism.

Preferably, the third connecting structure includes a fourth filter assembly, a second annular cover and a second cleaning assembly; the fourth filter assembly is arranged on one side of the third filter assembly; the second annular cover is arranged on one side of the fourth filter assembly, and the second annular cover corresponds to the first solenoid valve; the second cleaning assembly is arranged inside the second annular cover.

Preferably, the docking adjustment structure includes a first L-shaped plate and a linear moving structure; the first L-shaped plate is connected to the second annular cover; and the linear moving structure is arranged on the moving base.

Preferably, the docking adjustment structure further includes an abutment structure, and the abutment structure is arranged on the first L-shaped plate.

Preferably, the docking adjustment structure also includes a supporting structure, which includes a second L-shaped plate, a third screw sleeve, a third screw rod, a guide rebound structure and a support block assembly; the second L-shaped plate is connected to one side of the first L-shaped plate; the third screw sleeve is arranged on the second L-shaped plate; the third screw rod is threadedly connected to the third screw sleeve; the guide rebound structure is arranged on the second L-shaped plate; and the support block assembly is slidably arranged on the second L-shaped plate.

Compared with the prior art, the present invention has the following beneficial effects:

1. The present invention is provided with a first filtering mechanism and a second filtering mechanism, and the third connecting structure is connected to the first connecting structure. The low pressure of the first connecting structure will generate suction to the third connecting structure and the air of the second square box, and the air at a high place in the building curtain wall room will be sucked in by the second square box. The second filter element filters the sucked air to prevent dust and other impurities from entering the exhaust mechanism. Through the cooperation of the first filtering mechanism and the second filtering mechanism, the air at a low place and a high place in the building curtain wall room is attracted, thereby accelerating the efficiency of exhausting the air in the building curtain wall room to the outside and improving the comfort of the staff working in the building curtain wall room.

2. The present invention is provided with a second connection structure and a docking adjustment structure. After the first connection structure has been working for a period of time, the docking adjustment structure adjusts the third connection structure to dock with the second connection structure. The exhaust mechanism forms low pressure inside the first square box and the second square box respectively through the second connection structure and the third connection structure. A large amount of air around the first square box is sucked into the first direction box from the end of the first square box away from the first connection structure, so that the filtering capacity of the other end of the first filter element is fully utilized, so that all parts of the first filter element can be in contact with the air sucked into the first square box, avoiding clogging of the first filter element due to a large number of impurities filtered locally.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of an indoor ventilation device for a building curtain wall used for engineering decoration.

FIG. 2 is a perspective view of a first filtering mechanism in an indoor ventilation device for a building curtain wall used for engineering decoration.

FIG. 3 is an exploded view of a first filter assembly and a first connection structure in an indoor ventilation device for a building curtain wall used for engineering decoration.

FIG. 4 is a front view of a second filter mechanism in an indoor ventilation device for a building curtain wall used for engineering decoration.

FIG5 is a cross-sectional view taken along line A-A in FIG4.

FIG. 6 is a stereoscopic view of a second filter assembly and a first cleaning assembly in an indoor ventilation device for a building curtain wall used for engineering decoration.

FIG. 7 is a three-dimensional diagram of a first connection structure, a second connection structure and an air guide structure in an indoor ventilation device for a building curtain wall used for engineering decoration.

FIG. 8 is an exploded view of a third connection structure in an indoor ventilation device for a building curtain wall used for engineering decoration.

FIG. 9 is a stereoscopic view of a second annular cover and a docking adjustment structure in an indoor ventilation device for a building curtain wall used for engineering decoration.

FIG. 10 is a three-dimensional diagram of a second annular cover, a first L-shaped plate, a linear moving structure and abutting structure in an indoor ventilation device for a building curtain wall used for engineering decoration.

FIG. 11 is a three-dimensional diagram of a second annular cover, a first L-shaped plate and abutment structure in an indoor ventilation device for a building curtain wall used for engineering decoration.

FIG. 12 is a three-dimensional view of a second annular cover and a supporting structure in an indoor ventilation device for a building curtain wall used for engineering decoration.

The numbers in the figure are: 1, mobile base; 2, air extraction mechanism; 3, first filtering mechanism; 31, first filtering assembly; 311, first square box; 3111, first grille; 312, first filter element; 32, first connecting structure; 321, second filtering assembly; 3211, first dust collecting bin; 3212, first filter; 322, first annular cover; 323, first cleaning assembly; 3231, first mounting bracket; 3232, first rotating shaft; 3233, first cleaning brush; 3234, first fan blade; 33, second connecting structure; 34, first solenoid valve; 35, air guide structure; 351, main pipe; 352, auxiliary pipe; 353, second solenoid valve; 354, hose; 4, second filtering mechanism; 41, third filtering assembly; 411, second square box; 4111, second grille; 412, second filter element; 42, third connecting structure; 421 , fourth filter assembly; 4211, second dust collection bin; 4212, second filter screen; 422, second annular cover; 423, second cleaning assembly; 4231, second mounting bracket; 4232, second rotating shaft; 4233, second cleaning brush; 4234, second fan blade; 43, docking adjustment structure; 431, first L-shaped plate; 432, linear moving structure; 4321, first rectangular frame; 4322, first screw; 432 3. First guide cross bar; 4324. First screw sleeve; 4325. Moving block; 433. Abutment structure; 4331. Connecting shaft; 4332. U-shaped plate; 4333. Second screw sleeve; 4334. Second screw rod; 4335. First spring; 434. Support structure; 4341. Second L-shaped plate; 4342. Third screw sleeve; 4343. Third screw rod; 4344. Guide rebound structure; 4345. Support block assembly.

Detailed ways

In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

Referring to Figures 1 to 12: an indoor ventilation device for a building curtain wall for engineering decoration, comprising a mobile base 1, an exhaust mechanism 2, a first filter mechanism 3 and a second filter mechanism 4; a mobile base 1; the exhaust mechanism 2 is placed on the mobile base 1, and when the ventilation device is used, the exhaust mechanism 2 can be removed from the mobile base 1 and installed at a ventilation location of the building curtain wall; the first filter mechanism 3 comprises a first filter assembly 31 and a first connecting structure 32, the first filter assembly 31 is horizontally arranged on the mobile base 1, the first filter assembly 31 comprises a first square box 311 and a plurality of first filter elements 312, the first square box 311 is horizontally arranged, and a first grille 3111 is arranged on the side wall of the first square box 311, and a plurality of first filter elements 312 are arranged on the side wall of the first square box 311. 12 is arranged in the first square box 311, the first connecting structure 32 is arranged at one end of the first filter component 31, and one end of the first connecting structure 32 is connected to the exhaust mechanism 2; the second filter mechanism 4 includes a second filter component 321 and a third connecting structure 42, the second filter component 321 is vertically arranged on the mobile base 1, the second filter component 321 includes a second square box 411 and a plurality of second filter elements 412, the second square box 411 is vertically arranged, and a second grid net 4111 is arranged on the side wall of the second square box 411, and a plurality of second filter elements 412 are arranged in the second square box 411, and the third connecting structure 42 is arranged at the lower end of the second component, and the third connecting structure 42 is connected to the other end of the first connecting structure 32.

The staff first places the exhaust mechanism 2 on the mobile base 1, and the staff pushes the mobile base 1 to move to the site where the engineering decoration is carried out indoors in the building curtain wall, so as to reduce the difficulty of the staff to transfer the ventilation device. Then the staff removes the exhaust mechanism 2 from the mobile base 1 and fixes the exhaust mechanism 2 at the vent of the building curtain wall. When the exhaust mechanism 2 is working, the exhaust mechanism 2 discharges the air in the first square box 311 toward the outside of the building curtain wall through the first connecting structure 32, so that low pressure appears inside the first square box 311, and the air at the low point of the building curtain wall is sucked into the first square box 311. The first grille 3111 isolates larger debris outside the first square box 311 and is sucked into the first square box 311. The air inside is filtered by the first filter element 312 and then discharged from the building curtain wall. If the height of the dust in the building curtain wall is high, the staff will connect the third connecting structure 42 and the first connecting structure 32. The low pressure from the first connecting structure 32 will generate suction on the third connecting structure 42 and the air in the second square box 411. The air at a high place in the building curtain wall will be sucked in by the second square box 411. The second filter element 412 filters the sucked air to prevent dust and other impurities from entering the exhaust mechanism 2. Through the cooperation of the first filtering mechanism 3 and the second filtering mechanism 4, the air at the low and high places in the building curtain wall can be attracted, thereby accelerating the efficiency of exhausting the air in the building curtain wall to the outside and improving the comfort of the staff working in the building curtain wall.

Referring to Figures 1, 2, 4 and 5: the first filtering mechanism 3 also includes a second connecting structure 33, the second connecting structure 33 and the first connecting structure 32 are respectively arranged at both ends of the first filtering assembly 31, the second connecting structure 33 is connected to the air exhaust mechanism 2, the second connecting structure 33 and the first connecting structure 32 have the same structure, the second filtering mechanism 4 also includes a docking adjustment structure 43, the docking adjustment structure 43 is arranged on the mobile base 1, and the docking adjustment structure 43 is arranged at the lower end of the second connecting structure 33.

Since the first connecting structure 32 is arranged at one end of the first square box 311, the suction force at the end of the first square box 311 close to the first connecting structure 32 is relatively large, and a large amount of air sucked into the first square box 311 will pass through the end of the first filter element 312 close to the first connecting structure 32, so that one end of the first filter element 312 will be overused, while the filtering capacity of the other end of the first filter element 312 is not fully utilized. By setting the second connecting structure 33 and the docking adjustment structure 43, after the first connecting structure 32 has been involved in the work for a period of time, the docking adjustment structure 43 adjusts the third connecting structure 42 When docking with the second connecting structure 33, the exhaust mechanism 2 forms low pressure inside the first square box 311 and the second square box 411 respectively through the second connecting structure 33 and the third connecting structure 42, and a large amount of air around the first square box 311 is sucked into the first direction box from the end of the first square box 311 away from the first connecting structure 32, so that the filtering capacity of the other end of the first filter element 312 is fully utilized, so that all parts of the first filter element 312 can be in contact with the air sucked into the first square box 311, avoiding clogging of the first filter element 312 due to a large number of impurities filtered locally.

Referring to Figures 3 and 6: the first connecting structure 32 includes a second filter component 321 and a first annular cover 322; the second filter component 321 is arranged on one side of the first filter component 31, and the second filter component 321 includes a first dust collecting bin 3211 and a first filter screen 3212, one end of the first dust collecting bin 3211 is connected to one end of the first square box 311, and the first filter screen 3212 is arranged on a side of the first dust collecting bin 3211 away from the first square box 311; the first annular cover 322 is arranged on one side of the second filter component 321, and the first annular cover 322 is connected to the exhaust mechanism 2, and the inner cavity of the first annular cover 322 is connected to the inner cavity of the first dust collecting bin 3211.

Since the first filter element 312 needs to be replaced frequently, the fit between the first filter element 312 and the first square box 311 is not tight, and the suction force at the first connecting structure 32 is relatively large, which may cause some debris to be sucked into the first connecting structure 32 and enter the air suction mechanism 2, causing damage to the air suction mechanism 2. By setting the second filter assembly 321 and the first annular cover 322, suction is generated in the first annular cover 322. Therefore, the air in the first square box 311 passes through the first dust collecting bin 3211 and enters the first annular cover 322. The first filter net 3212 filters the air entering the first dust collecting bin 3211 again, thereby preventing some debris from passing through the first filter element 312 and entering the air suction mechanism 2, thereby further protecting the air suction mechanism 2.

Referring to Figures 3 and 6: the first connecting structure 32 also includes a first cleaning component 323, which is arranged inside the first annular cover 322. The first cleaning component 323 includes a first mounting frame 3231, a first rotating shaft 3232, a first cleaning brush 3233 and a first fan blade 3234. The first mounting frame 3231 is arranged on the side wall of the first dust collecting bin 3211, the middle part of the first rotating shaft 3232 is connected to the middle part of the first mounting frame 3231 through a bearing, and one end of the first rotating shaft 3232 passes through the first filter 3212 and extends into the inner cavity of the first dust collecting bin 3211. The first cleaning brush 3233 is arranged at one end of the first rotating shaft 3232, the first cleaning brush 3233 is tightly pressed against the first filter 3212, and the first fan blade 3234 is arranged at the other end of the first rotating shaft 3232.

The suction force in the first annular cover 322 causes the debris to be adsorbed on the first filter screen 3212. As the amount of debris attached to the first filter screen 3212 increases, the permeability of the first filter screen 3212 decreases. By setting the first cleaning component 323, the suction mechanism 2 generates suction force on the air in the first annular cover 322, and the air in the first annular cover 322 therefore flows toward the suction mechanism 2. The flow of air drives the first fan blade 3234 to rotate, and the first fan blade 3234 drives the first rotating shaft 3232 to rotate around its own axis. The first rotating shaft 3232 drives the first cleaning brush 3233 to rotate, and the first cleaning brush 3233 cleans the surface of the first filter screen 3212. As long as the suction mechanism 2 works to make the air in the first annular cover 322 flow, the first cleaning brush 3233 can continuously clean the first filter screen 3212, thereby achieving the goal of continuously maintaining the permeability of the first filter screen 3212 during the operation of the ventilation device.

As shown in Figure 2: the first filtering mechanism 3 also includes two first solenoid valves 34, which correspond to the first connecting structure 32 and the second connecting structure 33 respectively, and are connected to the first annular cover 322 in the first connecting structure 32 and the first annular cover 322 in the second connecting structure 33 respectively.

When the first connection structure 32 and the third connection structure 42 are docked, the second connection structure 33 is in an open state, and the suction force generated in the first square box 311 will suck the debris into the second connection structure 33, resulting in that when the third connection structure 42 and the second connection structure 33 are docked, the debris inside the second connection structure 33 will be sucked away by the exhaust mechanism 2. By setting two first solenoid valves 34, the first solenoid valve 34 at the first connection structure 32 is in an open state when the first connection structure 32 and the third connection structure 42 are docked, and the first solenoid valve 34 at the second connection structure 33 is in a closed state, so that one end of the first square box 311 is closed to avoid the formation of low pressure at the second connection structure 33. Similarly, when the second connection structure 33 and the third connection structure 42 are docked, the first solenoid valve 34 at the first connection structure 32 is closed to avoid the formation of low pressure at the first connection structure 32, thereby preventing debris from being sucked into the first connection structure 32 and the second connection structure 33.

Referring to Figures 2 and 7: the first filtering mechanism 3 also includes an air guide structure 35, which connects the first connecting structure 32, the second connecting structure 33 and the air extraction mechanism 2. The air guide structure 35 includes a main pipe 351, two sub-pipes 352, two second solenoid valves 353 and a hose 354. The two sub-pipes 352 are respectively arranged at the two ends of the main pipe 351, and the two second solenoid valves 353 are respectively arranged between the two sub-pipes 352 and the main pipe 351. One end of the hose 354 is connected to the main pipe 351, and the other end of the hose 354 is connected to the air extraction mechanism 2.

The first connecting structure 32 has three connecting ports, which are respectively connected to the air extraction mechanism 2, the first square box 311 and the first solenoid valve 34. The second connecting structure 33 is similar. When the first connecting structure 32 participates in ventilation, the air extraction mechanism 2 is connected to a connecting port of the first connecting structure 32, and the connecting port of the second connecting structure 33 and the air extraction mechanism 2 is opened, which will cause external air to enter the second connecting structure 33 from the connecting port. When replacing the second connecting structure 33 to participate in ventilation, the staff needs to first separate the air extraction mechanism 2 from the first connecting structure 32, and then connect the air extraction mechanism 2 to the connecting port of the second connecting structure 33. At this time, the connecting port at the first connecting structure 32 is in an open state. By setting the air guide structure 35, the main pipe 351 and the two auxiliary pipes 352 connects the first connecting structure 32 with the connecting port of the exhaust mechanism 2 and the second connecting structure 33 with the connecting port of the exhaust mechanism 2, so that the two connecting ports are merged into one connecting port connected to the exhaust mechanism 2. When the first connecting structure 32 participates in ventilation, the first solenoid valve 34 and the second solenoid valve 353 on both sides of the first connecting structure 32 are in an open state, and the first solenoid valve 34 and the second solenoid valve 353 on both sides of the second connecting structure 33 are in a closed state. Similarly, when the second connecting structure 33 participates in ventilation, the first solenoid valve 34 and the second solenoid valve 353 on both sides of the second connecting structure 33 are in an open state, and the first solenoid valve 34 and the second solenoid valve 353 on both sides of the first connecting structure 32 are in a closed state, thereby eliminating the need for staff to change the connection object of the exhaust mechanism 2.

4, 5 and 8: the third connecting structure 42 includes a fourth filter assembly 421, a second annular cover 422 and a second cleaning assembly 423; the fourth filter assembly 421 is arranged on one side of the third filter assembly 41, the fourth filter assembly 421 includes a second integrated bin and a second filter screen 4212, the second dust collecting bin 4211 is connected to the second square box 411, and the second filter screen 4212 is arranged on a side of the second dust collecting bin 4211 away from the second square box 411; the second annular cover 422 is arranged on one side of the fourth filter assembly 421, the second annular cover 422 corresponds to the first solenoid valve 34, and the inner cavity of the second annular cover 422 is aligned with the inner cavity of the second dust collecting bin 4211 Connected; the second cleaning component 423 is arranged inside the second annular cover 422, and the second cleaning component 423 includes a second mounting frame 4231, a second rotating shaft 4232, a second cleaning brush 4233 and a second fan blade 4234, the second mounting frame 4231 is connected to the outer wall of the second dust collecting bin 4211, the middle part of the second rotating shaft 4232 is connected to the middle part of the second mounting frame 4231 through a bearing, and one end of the second rotating shaft 4232 passes through the middle part of the second filter 4212, the second cleaning brush 4233 is installed at one end of the second rotating shaft 4232, the second fan blade 4234 is arranged in the second annular cover 422, and the second fan blade 4234 is connected to the other end of the second rotating shaft 4232.

The second annular cover 422 is connected to the first annular cover 322, and the suction force in the first annular cover 322 draws out the air in the second annular cover 422, forming a low pressure in the second annular cover 422. Therefore, the air in the second square box 411 is linked to the second annular cover 422, and the debris in the air that is not filtered by the second filter element 412 will be blocked by the second filter net 4212. At the same time, the flow of gas in the second annular cover 422 drives the second fan blades 4234 to rotate, and the second fan blades 4234 drive the second cleaning brush 4233 to clean the second filter net 4212 through the second rotating shaft 4232, thereby preventing debris from entering the ventilation device from the third connecting structure 42.

4, 5, 9 and 10: the docking adjustment structure 43 includes a first L-shaped plate 431 and a linear moving structure 432; the first L-shaped plate 431 is connected to the second annular cover 422; the linear moving structure 432 is arranged on the mobile base 1, and the linear moving structure 432 includes a first rectangular frame 4321, a first screw 4322, two first guide cross bars 4323, a first screw sleeve 4324 and a moving block 4325, and the first rectangular frame 4321 is mounted on the mobile base 1 On, the two ends of the first rectangular frame 4321 correspond to the two first solenoid valves 34 respectively, the two ends of the first screw 4322 are respectively connected to the two ends of the first rectangular frame 4321, the two first guide cross bars 4323 are respectively arranged in parallel on both sides of the first screw 4322, the first screw sleeve 4324 is transmission-connected to the first screw 4322, the two ends of the moving block 4325 are respectively slidingly connected to the two first guide cross bars 4323, and the first screw sleeve 4324 is connected to the middle part of the moving block 4325.

The third filter assembly 41 and the third connecting structure 42 are installed on the first L-shaped plate 431. When changing the object corresponding to the third connecting structure 42, the staff rotates the first screw 4322, and the first screw 4322 drives the first screw sleeve 4324 to move along the first screw 4322. The first screw sleeve 4324 drives the moving block 4325 to move along the first guide cross bar 4323. The moving block 4325 drives the third filter assembly 41 and the third connecting structure 42 to move along the first screw 4322 through the first L-shaped plate 431. When the third connecting structure 42 is docked with the first connecting structure 32, the moving block 4325 drives the third connecting structure 42 to move to align with the first connecting structure 32. When the third connecting structure 42 is docked with the second connecting structure 33, the moving block 4325 drives the third connecting structure 42 to move to align with the second connecting structure 33, thereby realizing automatic adjustment of the position of the third connecting structure 42 and avoiding manual carrying of the third filter assembly 41 and the third connecting structure 42 by the staff.

9 and 11, the docking adjustment structure 43 also includes an abutment structure 433, which is arranged on the first L-shaped plate 431. The abutment structure 433 includes a connecting shaft 4331, a U-shaped plate 4332, a second screw 4334, a second screw sleeve 4333 and a first spring 4335. One end of the connecting shaft 4331 is connected to the second annular cover 422, and the other end of the connecting shaft 4331 extends out of the first L-shaped plate 431. The U-shaped plate 4332 is arranged on the connecting shaft. The other end of the connecting shaft 4331, and both ends of the U-shaped plate 4332 are connected to the first L-shaped plate 431, the second screw sleeve 4333 is set in the middle of the U-shaped plate 4332, the second screw rod 4334 is threadedly connected to the first screw sleeve 4324, and one end of the second screw rod 4334 is abutted against the connecting shaft 4331, the first spring 4335 is sleeved on the connecting shaft 4331, and the two ends of the first spring 4335 are respectively abutted against the end of the connecting shaft 4331 and the first L-shaped plate 431.

The second annular cover 422 and the first solenoid valve 34 need to be tightly connected to avoid leakage at the connection between the two. Therefore, when the second annular cover 422 is moved between them, friction will occur between the second annular cover 422 and the first solenoid valve 34, resulting in wear on the interface between the two. By setting the abutment structure 433, before moving the second annular cover 422, the staff rotates the second screw 4334, and the second screw 4334 moves toward the end away from the second annular cover 422. The first spring 4335 pushes the connecting shaft 4331 to move along the axis of the connecting shaft 4331 toward the direction away from the second annular cover 422. The connecting cover drives the second annular cover 422 to separate from the first solenoid valve 34. Then the staff rotates the first screw 4322 again to drive the second annular cover 422 to move. The second annular cover 422 moves to another first solenoid valve 34, and then the second annular cover 422 is connected to the first solenoid valve 34 through the abutment structure 433, thereby avoiding friction between the second annular cover 422 and the first solenoid valve 34 when moving.

9 and 12, the docking adjustment structure 43 also includes a support structure 434, which includes a second L-shaped plate 4341, a third screw sleeve 4342, a third screw rod 4343, a guide rebound structure 4344 and a support block assembly 4345; the second L-shaped plate 4341 is connected to one side of the first L-shaped plate 431; the third screw sleeve 4342 is arranged on the second L-shaped plate 4341; the third screw rod 4343 is threadedly connected to the third screw sleeve 4342; the guide rebound structure 4344 is arranged on the second L-shaped plate 4341, and the guide rebound structure 4344 includes a push plate, two second guide cross bars and two second springs, and the third screw sleeve One end of 4342 abuts against the middle part of the push plate, two second guide cross bars are arranged in parallel on both sides of the third screw 4343, one end of the second guide cross bar is connected to one end of the push plate, and the other end of the second guide cross bar is slidably connected to the second L-shaped plate 4341, and the two second springs are respectively mounted on the two second guide cross bars, and the two ends of the second springs abut against the second L-shaped plate 4341 and the end of the second guide cross bar respectively; the support block assembly 4345 is slidably arranged on the second L-shaped plate 4341, and the support block assembly 4345 includes a second rectangular frame and a plurality of rollers, the second rectangular frame is connected to the push plate, and the plurality of rollers are installed on the second rectangular frame at equal intervals.

When transferring the ventilation device, the staff rotates the third filter assembly 41 and the third connecting structure 42 90 degrees around the axis of the connecting shaft 4331, so that the second square box 411 is in a horizontal state, which is convenient for the staff to transfer the ventilation device. When using the ventilation device, the second square box 411 is erected. During the operation of the ventilation device, the rapid flow of air will cause the device to vibrate, which will cause the second square box 411 to fall over. By setting the supporting structure 434, the staff erects the second square box 411 and then rotates the third screw 4343. The screw 4343 pushes the push plate along its own axial direction to move toward the first L-shaped plate 431, the second spring is compressed, and the push plate drives the support block assembly 4345 to be located directly below the second annular cover 422. Then, when the staff connects the second annular cover 422 with the first solenoid valve 34, the second annular cover 422 and several rollers have rolling friction, which reduces the wear of the second annular cover 422. Several rollers apply a vertical upward supporting force to the second annular cover 422, thereby achieving that the second square box 411 remains in a vertical state during the operation of the ventilation device.

The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims (10)

1. An indoor ventilation device for a building curtain wall for engineering decoration, characterized by comprising a movable base (1), an air extraction mechanism (2), a first filtering mechanism (3) and a second filtering mechanism (4); Mobile base (1); The air extraction mechanism (2) is placed on the mobile base (1). When the ventilation device is used, the air extraction mechanism (2) can be removed from the mobile base (1) and installed at a ventilation location of a building curtain wall; The first filtering mechanism (3) comprises a first filtering assembly (31) and a first connecting structure (32); the first filtering assembly (31) is horizontally arranged on the movable base (1); the first connecting structure (32) is arranged at one end of the first filtering assembly (31); and one end of the first connecting structure (32) is connected to the air extraction mechanism (2); The second filtering mechanism (4) comprises a second filtering component (321) and a third connecting structure (42); the second filtering component (321) is vertically arranged on the mobile base (1); the third connecting structure (42) is arranged at the lower end of the second component; and the third connecting structure (42) is connected to the other end of the first connecting structure (32). 2. An indoor ventilation device for a building curtain wall for engineering decoration according to claim 1, characterized in that the first filtering mechanism (3) further comprises a second connecting structure (33), the second connecting structure (33) and the first connecting structure (32) are respectively arranged at two ends of the first filtering component (31), the second connecting structure (33) is connected to the exhaust mechanism (2), and the second filtering mechanism (4) further comprises a docking adjustment structure (43), the docking adjustment structure (43) is arranged on the mobile base (1), and the docking adjustment structure (43) is arranged at the lower end of the second connecting structure (33). 3. The indoor ventilation device for building curtain wall for engineering decoration according to claim 2, characterized in that the first connecting structure (32) comprises a second filter assembly (321) and a first annular cover (322); The second filter assembly (321) is arranged on one side of the first filter assembly (31); The first annular cover (322) is arranged on one side of the second filter assembly (321), and the first annular cover (322) is connected to the air extraction mechanism (2). 4. The indoor ventilation device for a building curtain wall for engineering decoration according to claim 3, characterized in that the first connecting structure (32) further comprises a first cleaning component (323), and the first cleaning component (323) is arranged inside the first annular cover (322). 5. The indoor ventilation device for building curtain wall for engineering decoration according to claim 2, characterized in that the first filtering mechanism (3) further comprises two first solenoid valves (34), and the two first solenoid valves (34) correspond to the first connecting structure (32) and the second connecting structure (33), respectively. 6. An indoor ventilation device for a building curtain wall for engineering decoration according to claim 5, characterized in that the first filtering mechanism (3) further comprises an air guiding structure (35), and the air guiding structure (35) connects the first connecting structure (32), the second connecting structure (33) and the air extraction mechanism (2). 7. The indoor ventilation device for building curtain wall for engineering decoration according to claim 1, characterized in that the third connecting structure (42) comprises a fourth filter component (421), a second annular cover (422) and a second cleaning component (423); The fourth filter assembly (421) is arranged on one side of the third filter assembly (41); The second annular cover (422) is arranged on one side of the fourth filter assembly (421), and the second annular cover (422) corresponds to the first solenoid valve (34); The second cleaning assembly (423) is arranged inside the second annular cover (422). 8. The indoor ventilation device for building curtain wall for engineering decoration according to claim 2, characterized in that the docking adjustment structure (43) comprises a first L-shaped plate (431) and a linear moving structure (432); The first L-shaped plate (431) is connected to the second annular cover (422); The linear moving structure (432) is arranged on the moving base (1). 9. An indoor ventilation device for a building curtain wall for engineering decoration according to claim 8, characterized in that the docking adjustment structure (43) further comprises an abutment structure (433), and the abutment structure (433) is arranged on the first L-shaped plate (431). 10. The indoor ventilation device for building curtain wall for engineering decoration according to claim 9, characterized in that the docking adjustment structure (43) further comprises a supporting structure (434), and the supporting structure (434) comprises a second L-shaped plate (4341), a third screw sleeve (4342), a third screw rod (4343), a guide rebound structure (4344) and a supporting block assembly (4345); The second L-shaped plate (4341) is connected to one side of the first L-shaped plate (431); The third screw sleeve (4342) is arranged on the second L-shaped plate (4341); The third screw rod (4343) is threadedly connected to the third screw sleeve (4342); The guide rebound structure (4344) is arranged on the second L-shaped plate (4341); The support block assembly (4345) is slidably disposed on the second L-shaped plate (4341).