Integrated ceiling ventilation equipment with filtering function

Abstract

The invention discloses integrated ceiling ventilation equipment with a filtering function, and belongs to the technical field of ventilation devices.The integrated ceiling ventilation equipment comprises an air pipe installed above a ceiling, a panel is installed at the bottom of the air pipe, an exhaust outlet is formed in the panel, a plurality of frameworks are arranged at the position, close to the bottom end, in the air pipe, and every two adjacent frameworks are hinged to each other; a filter screen is fixedly arranged in the framework; according to the device, when the filter screen is replaced, the panel does not need to be dismantled, the frameworks and the filter screen can be pulled out by pulling the pulling plate downwards, in the installation process, the multiple frameworks can be rearranged on the supporting strips stably and orderly through assistance of the pressing blocks, and therefore installation of the filter screen is completed, in the whole process, the deflection height of the frameworks is limited, and the installation efficiency is improved. Interference between the framework and an air pipe or a fan in the deflection process can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of ventilation devices, and in particular to integrated ceiling ventilation equipment with filtering. Background Art

[0002] The integrated ceiling is a combination of metal square panels and electrical appliances. It is divided into panel modules, heating modules, lighting modules, and ventilation modules. It is easy to install, flexible in layout, and convenient in maintenance, making it the mainstream of bathroom and kitchen ceilings.

[0003] Chinese patent CN220567415U discloses a ventilation structure of an integrated ceiling panel. Through the cooperation of a filter screen and an adsorption plate, dust and oil in the air can be purified, thereby avoiding direct discharge of dust and oil into the air. Through the cooperation of a fixing block, the filter screen and the adsorption plate can be easily installed and disassembled, thereby facilitating cleaning or replacement.

[0004] The above-mentioned device installs the grid on the panel by means of snap-on connection, which makes the actual disassembly process inconvenient. Moreover, during the process of replacing the filter, the entire grid needs to be disassembled. Since the ventilation equipment is installed on the ceiling, the disassembly process is relatively laborious. In summary, there is still room for improvement in the above-mentioned device.

[0005] Therefore, it is necessary to provide an integrated ceiling ventilation device with filtering to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide an integrated ceiling ventilation device with filtering, so as to solve the problem that the existing device proposed in the above background technology installs the grid on the panel by means of snap-on connection, which is inconvenient in the actual disassembly process. Moreover, in the process of replacing the filter, the entire grid needs to be disassembled. Since the ventilation equipment is installed on the ceiling, the disassembly process is more laborious.

[0007] Based on the above ideas, the present invention provides the following technical solutions: an integrated ceiling ventilation device with filtering, comprising an air duct installed above the ceiling, a panel installed at the bottom of the air duct, an exhaust port opened on the panel, a plurality of frames are arranged near the bottom of the air duct, two adjacent frames are hinged to each other, a filter is fixedly arranged inside the frame, support bars are fixedly arranged on both the front and rear side walls of the air duct, a pull plate is hinged on one side of the frame at the end, a through slot is opened on the panel, and the pull plate is in a vertical state and passes through the through slot; Straight grooves are provided on the front and rear side walls of the air duct cavity, and the straight grooves are in a vertical state. An arc-shaped guide groove is connected to the top of the straight groove, and an arc-shaped groove is connected to the end of the guide groove away from the straight groove. Guide blocks are elastically installed on the front and rear side surfaces of the skeleton, and a driving component that cooperates with the guide blocks is provided at the arc-shaped groove. When the guide block on the skeleton slides from the guide groove to the inside of the arc-shaped groove, the driving component can deflect along the arc-shaped groove. In this process, the thrust of the driving component on the guide block can drive the skeleton to deflect to a horizontal state and fall onto the support bar.

[0008] As a further solution of the present invention: the driving assembly includes a support rod arranged on the outside of the air duct, a connecting shaft is fixedly arranged at a position near the bottom end of the support rod, a sleeve is fixedly arranged at the outer side surface of the air duct, one end of the connecting shaft is inserted into the sleeve and rotates with the sleeve, and a coil spring is arranged between the connecting shaft and the sleeve, a slider is fixedly arranged at a position near the top of the support rod, the slider is slidably arranged in an arc groove, and a pressure block is elastically installed at the end of the slider away from the support rod, and one side of the pressure block is arranged as an inclined surface.

[0009] As a further solution of the present invention: a slot is provided at the end surface of the sliding block away from the support rod, a pressure block is slidably arranged at the slot, a clamping block is elastically installed on the outer surface of the sliding block, a clamping slot matching the clamping block is provided at the top wall inside the arc-shaped slot, a reel is rotatably installed at the top wall inside the slot, and a second gear is provided at the outer side of the reel near the bottom end through a second one-way bearing sleeve, a second pull rope is wound around the outer side of the reel, and the end of the second pull rope away from the reel is fixedly connected to the clamping block, a notch is provided on the outer side of the pressure block and at the end close to the reel, and a second rack meshing with the second gear is fixedly provided at the notch.

[0010] As a further solution of the present invention: a rotating shaft is rotatably installed in the air duct, a first gear is sleeved on the outside of the rotating shaft, and the first gear is sleeved on the outside of the rotating shaft through a first one-way bearing, a first rack meshing with the first gear is fixedly provided on the top surface of the skeleton, and the rotating shaft passes through one end of the air duct and cooperates with the connecting shaft for transmission.

[0011] As a further solution of the present invention: baffles are provided on both sides of the bottom of the through groove, a vertical plate is fixedly provided on the side of the baffle away from the through groove, a screw is rotatably installed on the outer side of the vertical plate through a tapered roller bearing, a boss is fixedly provided on the bottom surface of the panel, and the screw passes through the boss and cooperates with its thread.

[0012] As a further solution of the present invention: plug blocks are installed on both sides of the pull plate, and a slot matching with the plug block is provided on the side of the baffle close to the pull plate.

[0013] As a further solution of the present invention: an inclined block is fixedly provided at the inner bottom end of the arc-shaped groove.

[0014] As a further solution of the present invention: a groove for slidingly cooperating with the guide block is provided on the frame, and a first spring is fixedly arranged between the inner end surface of the groove and the guide block.

[0015] As a further solution of the present invention: a positioning groove is provided on the inner wall of the groove, and a positioning block matching with the positioning groove is elastically mounted on one side of the guide block close to the positioning groove.

[0016] As a further solution of the present invention: a gap is left between the right side surface of the support strip and the inner wall of the air duct.

[0017] Compared with the prior art, the beneficial effects of the present invention are: this device does not need to remove the panel when replacing the filter, and the frame and the filter can be pulled out by pulling the pull plate down, and during the installation process, with the assistance of the pressing block, multiple frames can be stably and orderly rearranged on the support bar to complete the installation of the filter. During the whole process, the deflection height of the frame is limited, which can avoid the frame from interfering with the air duct or fan during the deflection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the present invention; Figure 3 The present invention Figure 2 A schematic diagram of the enlarged structure at point A; Figure 4 It is a schematic diagram of the guide block connection structure of the present invention; Figure 5 is a schematic diagram of the skeleton of the present invention being located above the support bars; Figure 6 The present invention Figure 5 A schematic diagram of the enlarged structure at B; Figure 7 It is a schematic diagram of the support bar structure of the present invention; Figure 8 The present invention Figure 7 A schematic diagram of the enlarged structure at C; Fig. 9 It is a schematic diagram of the through slot structure of the present invention; Fig.10 is a schematic diagram of the second rack structure of the present invention; Fig.11 It is a schematic diagram of the structure of the pressing block and the clamping block of the present invention; Fig.12 It is a schematic diagram of the coil spring structure of the present invention.

[0020] In the figure: 1, air duct; 101, straight groove; 102, guide groove; 103, arc groove; 1301, clamping groove; 104, oblique block; 2, panel; 201, exhaust port; 202, through groove; 3, coil spring; 4, skeleton; 401, filter screen; 402, first rack; 5, belt; 6, rotating shaft; 601, first gear; 7, support rod; 701, connecting shaft; 8, sleeve; 9, positioning groove; 10, guide block; 1001, positioning block; 11, first pull rope; 12, support bar; 13, slider; 14, pressure block; 1401, inclined plane; 1402, second rack; 15, second pull rope; 16, clamping block; 17, pull plate; 1701, plug block; 18, vertical plate; 1801, screw; 19, baffle; 20, scroll. DETAILED DESCRIPTION

[0021] like Figure 1-Figure 10 As shown, an integrated ceiling ventilation device with filtering includes an air duct 1 installed above the ceiling, and a panel 2 is installed at the bottom of the air duct 1. Figure 1 As shown, the panel 2 is provided with an exhaust port 201, so that the heated gas can be discharged through the panel 2. In actual use, the panel 2 can be fixedly matched with the air duct 1 and installed at the bottom of the ceiling. As for the fan in the air duct 1, since it is a mature technical means, the installation and working principle of the fan are not elaborated here.

[0022] A plurality of frames 4 are arranged near the bottom of the air duct 1, and two adjacent frames 4 are hinged to each other. A filter 401 is fixedly arranged inside the frame 4, and the filter 401 is arranged to facilitate filtering of the external air. Figure 5 As shown, in order to support the multiple frames 4, in this solution, support bars 12 are fixedly arranged on both the front and rear side walls inside the air duct 1, referring to Figure 5 As shown, a gap is left between the side of the support bar 12 and the inner wall of the air duct 1, and the frame 4 is arranged on the support bar 12, combined with Figure 7-Figure 9 As shown, a pull plate 17 is provided on one side of the frame 4 at the end, and the frame 4 at the end is hinged to the pull plate 17, referring to Fig. 9 As shown, a through slot 202 is provided on the panel 2, and the pull plate 17 is in a vertical state and passes through the through slot 202. Through this structure, when the filter 401 in the air duct 1 needs to be cleaned, the pull plate 17 can be pulled downward to pull out multiple skeletons 4 one by one through the through slot 202. Since two adjacent skeletons 4 are hinged to each other, in the process of pulling out multiple skeletons 4, the height of the skeleton 4 after deflection is limited, thereby avoiding interference between the skeleton 4 and the air duct 1 when deflected (the commonly used air duct 1 is generally an L-shaped bend pipe, so that one end of the air duct 1 can extend to the outside of the wall).

[0023] In order to install the frame 4, the present solution has straight grooves 101 on both the front and rear side walls of the inner cavity of the air duct 1, the straight grooves 101 are in a vertical state, the inner wall of the air duct 1 is provided with an arc-shaped guide groove 102 at the top of the straight groove 101, and the inner wall of the air duct 1 is provided with an arc-shaped groove 103 at the end of the guide groove 102 away from the straight groove 101, the straight groove 101, the arc-shaped groove 103 and the guide groove 102 are interconnected, and the straight groove 101, the arc-shaped groove 103 and the guide groove 102 are all in a through state. , guide blocks 10 are elastically installed at the front and rear sides of the frame 4, and the guide blocks 10 are located near the top of the frame 4. During the installation process, the frame 4 at the head end can be inserted upward into the air duct 1, so that the guide block 10 on the frame 4 at the head end is in the straight groove 101. After that, as the frame 4 is pushed upward, the guide block 10 on the frame 4 at the head end will move to the guide groove 102. The limit of the guide block 10 by the guide groove 102 can cause the frame 4 at the head end to gradually deflect toward the direction close to the support bar 12; Furthermore, a driving assembly that cooperates with the guide block 10 is provided at the arc groove 103. When the guide block 10 on the skeleton 4 slides from the guide groove 102 to the inside of the arc groove 103, the driving assembly can deflect along the arc groove 103. During this process, the thrust of the driving assembly on the guide block 10 can drive the skeleton 4 to deflect to a horizontal state and fall onto the support bar 12. During actual operation, the center of the arc groove 103 and the deflection center of the skeleton 4 can be in a colinear state.

[0024] The driving assembly includes a support rod 7 arranged on the outside of the air duct 1, a connecting shaft 701 is fixedly arranged at a position near the bottom end of the support rod 7, and a sleeve 8 is fixedly arranged on the outer side of the air duct 1, one end of the connecting shaft 701 is inserted into the sleeve 8 and rotates with the sleeve 8, and a coil spring 3 is sleeved on the outer side of the connecting shaft 701, and the two ends of the coil spring 3 are respectively fixedly connected to the outer wall of the connecting shaft 701 and the inner wall of the sleeve 8, and a slider 13 is fixedly arranged at a position near the top of the support rod 7, and the slider 13 is slidably arranged in the arc groove 103, and a pressure block 14 is elastically installed at one end of the slider 13 away from the support rod 7, refer to Fig.11 As shown, one side of the pressing block 14 is provided with an inclined surface 1401. When the guide block 10 slides from the guide groove 102 to the inside of the arc groove 103, the guide block 10 will contact the inclined surface 1401 on the pressing block 14, thereby squeezing the pressing block 14 into the slider 13; Combination Figure 10-12As shown, a notch is provided at the end face of the slider 13 away from the support rod 7, and the pressure block 14 is slidably arranged at the notch. A clamping block 16 is elastically installed on the outer surface of the slider 13, and a reel 20 is rotatably installed at the top wall inside the notch, and a second gear is sleeved at the outer side of the reel 20 near the bottom end, and the second gear cooperates with the reel 20 through a second one-way bearing. A second pull rope 15 is wound around the outer side of the reel 20, and one end of the second pull rope 15 is fixedly matched with the reel 20, and the other end of the second pull rope 15 is fixedly connected with the clamping block 16 after passing through the slider 13, and the second pull rope 15 is slidably matched with the slider 13, and the outer side of the pressure block 14 is close to the bottom end of the reel 20. A notch is provided at one end of the near reel 20, and a second rack 1402 meshing with the second gear is fixedly arranged at the notch. When the guide block 10 on the skeleton 4 passes over the pressure block 14, the pressure block 14 can pop out, so that the reel 20 can be driven to rotate and the second pull rope 15 can be wound through the meshing of the second rack 1402 and the second gear. During this process, the second pull rope 15 can pull the card block 16 to retract into the slider 13. A card slot 1301 matching with the card block 16 is provided on the top wall inside the arc groove 103. When the card block 16 is in a pop-up state and inserted into the card slot 1301, the slider 13 can be locked in the arc groove 103.

[0025] In order to drive the support rod 7 to rotate around the connecting shaft 701, in this scheme, a rotating shaft 6 is rotatably installed in the air duct 1, and a first gear 601 is sleeved on the outside of the rotating shaft 6, and the first gear 601 is sleeved on the outside of the rotating shaft 6 through a first one-way bearing. The top surface of the skeleton 4 is fixedly provided with a first rack 402 meshing with the first gear 601. During the process of the skeleton 4 being inserted into the air duct 1, the rotating shaft 6 can be driven to rotate through the meshing of the first gear 601 and the first rack 402. The rotating shaft 6 passes through one end of the air duct 1 and is in transmission cooperation with the above-mentioned connecting shaft 701. Through this structure, the support rod 7 can be driven to deflect.

[0026] In actual use, when the filter 401 needs to be replaced, the pull plate 17 can be pulled downward. Since the right end of the support bar 12 does not contact the inner wall of the air duct 1, during the process of pulling the pull plate 17, the frame 4 at the end will deflect and tilt around the side edge on the right side of the top of the support bar 12. As the end frame 4 deflects, the frame 4 will gradually contact the side edge of the through slot 202 and rotate around the side edge of the through slot 202 and finally be in a vertical state. Continue to pull the pull plate 17 downward, and multiple frames 4 from right to left can be pulled out through the through slot 202. By providing multiple frames 4 and hingedly connecting two adjacent frames 4, the deflection height of the frame 4 can be effectively controlled, so that the frame 4 can be prevented from interfering with the air duct 1 or the fan during the process of pulling out the frame 4. In addition, the first gear 601 cooperates with the rotating shaft 6 through the first one-way bearing. Therefore, during the process of pulling out the frame 4, the first gear 601 will only be driven to rotate in one direction through the first rack 402. When the filter screen 401 needs to be installed after cleaning, the multiple frames 4 can be reinserted into the air duct 1. Specifically, when the frame 4 at the head end is inserted into the air duct 1, the guide block 10 on the frame 4 can be inserted into the straight groove 101, and the first rack 402 on the outer side of the frame 4 will mesh with the first gear 601. When the frame 4 at the head end continues to move upward, the first rack 402 can drive the first gear 601 and the rotating shaft 6 to rotate, and then the rotating shaft 6 drives the connecting shaft 701 and the support rod 7 to deflect. When the first gear 601 is staggered with the first rack 402, the slider 13 moves along the straight groove 101. The arc groove 103 slides to the card groove 1301, so that the card block 16 on the slider 13 can pop out and insert into the card groove 1301, so as to lock the support rod 7. When the guide block 10 on the head end frame 4 slides from the straight groove 101 to the inside of the arc-shaped guide groove 102, the guide groove 102 squeezes the guide block 10 to cause the head end frame 4 to deflect toward the direction close to the support bar 12. When the guide block 10 on the head end frame 4 slides from the guide groove 102 to the inside of the arc groove 103, the guide block 10 will contact the inclined surface 1401 on the pressing block 14 and compress the pressing block 14. The bearing cooperates with the reel 20. Therefore, during the contraction of the pressure block 14, the second rack 1402 on the pressure block 14 can drive the second gear to rotate independently. When the guide block 10 passes over the pressure block 14, the pressure block 14 can pop out. In this process, the second rack 1402 can drive the second gear and the reel 20 to rotate synchronously. During the rotation of the reel 20, the second pull rope 15 can be reeled in, so that the clamping block 16 is moved out of the clamping slot 1301, so as to release the lock of the support rod 7. At this time, the support rod 7 can be driven to deflect in the direction away from the support bar 12 through the coil spring 3. Since the pressure block 14 and the guide block 10 are in They can overlap in the vertical direction, therefore, the pressure block 14 can further push the guide block 10 to slide along the arc groove 103, which is conducive to driving the skeleton 4 at the head end to deflect to a horizontal state and fall onto the support bar 12. In the process of inserting the second skeleton 4 into the air duct 1, according to the above analysis, the support rod 7 can be reset and re-locked. Although the skeleton 4 at the head end will be deflected during the insertion of the second skeleton 4 into the air duct 1, the skeleton 4 at the head end is still in an inclined state as a whole, so that it can be deflected to a horizontal state with the second skeleton 4. Repeat the above steps to install the filter 401 in the air duct 1.

[0027] To sum up, this device does not need to remove the panel 2 when replacing the filter 401. The frame 4 and the filter 401 can be pulled out by pulling down the pull plate 17. During the installation process, with the assistance of the pressing block 14, multiple frames 4 can be stably and orderly rearranged on the support bar 12 to complete the installation of the filter 401. During the whole process, the deflection height of the frame 4 is limited, which can prevent the frame 4 from interfering with the air duct 1 or the fan during the deflection process.

[0028] like Figure 1-Figure 3 As shown, hinges are installed on opposite sides of the two frames 4, and the rotational cooperation between the two frames 4 can be achieved through this structure.

[0029] The ends of the connecting shaft 701 and the rotating shaft 6 are both fixedly sleeved with pulleys, and the two pulleys are connected by a belt 5 to drive the connecting shaft 701 and the supporting rod 7 to rotate.

[0030] Reference Figure 4 As shown, the frame 4 is provided with a groove that is slidably matched with the guide block 10, a first spring is fixedly arranged between the inner end surface of the groove and the guide block 10, a positioning groove 9 is provided on the inner wall of the groove, and a mounting groove is provided on a side of the guide block 10 close to the positioning groove 9, a positioning block 1001 is slidably arranged in the mounting groove, a spring is fixedly arranged between the inner end surface of the mounting groove and the positioning block 1001, and the spring is fixedly arranged between the inner end surface of the mounting groove and the positioning block 1001. Figure 7 As shown, an inclined block 104 is fixedly provided at the inner bottom end of the arc groove 103, and the outer side surface of the inclined block 104 is inclined. Through this structure, when the skeleton 4 deflects to a horizontal state and falls to the top of the support bar 12, the guide block 10 on the skeleton 4 is squeezed by the inclined block 104 and retracted into the skeleton 4, which is conducive to moving the guide block 10 out of the arc groove 103, and when the positioning block 1001 is aligned with the positioning groove 9, the positioning block 1001 can pop out and insert into the positioning groove 9, so that the guide block 10 is locked in the groove, which is conducive to avoiding interference between the guide block 10 and structures such as the arc groove 103 during the process of removing the skeleton 4. Furthermore, a pull block can be slidably assembled on the end face of the guide block 10 away from the skeleton 4, and a first pull rope 11 is fixedly provided between the pull block and the positioning block 1001. The first pull rope 11 passes through the guide block 10 and slidably cooperates with it. Through this structure, it is conducive to driving the positioning block 1001 to retract through the first pull rope 11, thereby releasing the lock of the guide block 10.

[0031] like Figure 6 As shown, the outer side surface of the slider 13 is provided with a mounting hole that is slidably matched with the clamping block 16 , and a second spring is fixedly arranged between the inner end surface of the mounting hole and the clamping block 16 .

[0032] Reference Figure 8As shown, baffles 19 are provided on both sides of the bottom of the through groove 202, and a vertical plate 18 is fixedly provided on the side of the baffle 19 away from the through groove 202. A screw 1801 is rotatably installed on the outer side of the vertical plate 18 through a tapered roller bearing, and a boss is fixedly provided on the bottom surface of the panel 2, and the screw 1801 passes through the boss and cooperates with its thread. In addition, plug blocks 1701 can be installed on both sides of the pull plate 17, and the plug block 1701 can be assembled on the pull plate 17 by elastic cooperation, and a slot that cooperates with the plug block 1701 can be provided on the side of the baffle 19 close to the pull plate 17. In actual use, this structure is conducive to locking the pull plate 17, and in the process of inserting the frame 4 into the air duct 1, the baffle 19 can be driven to fit with the frame 4, so as to improve the stability of the movement of the frame 4. Of course, the top end face of the plug block 1701 can be tilted so that the plug block 1701 can be quickly inserted between the two baffles 19.

[0033] Reference Fig.10 As shown, the outer peripheral surface of the reel 20 is provided with an annular groove for winding up the second pull rope 15 .

[0034] A limit spring is fixedly arranged between the inner end surface of the notch and the pressing block 14 .

Claims

1. An integrated ceiling ventilation device with filtering, comprising an air duct installed above the ceiling, a panel installed at the bottom of the air duct, an exhaust port opened on the panel, and a plurality of frames arranged near the bottom of the air duct, characterized in that: Two adjacent frames are hinged to each other, a filter is fixedly arranged inside the frame, support bars are fixedly arranged on both the front and rear side walls inside the air duct, a pull plate is hinged on one side of the frame at the end, a through slot is opened on the panel, and the pull plate is in a vertical state and passes through the through slot; Straight grooves are provided on the front and rear side walls of the air duct cavity, and the straight grooves are in a vertical state. An arc-shaped guide groove is connected to the top of the straight groove, and an arc-shaped groove is connected to the end of the guide groove away from the straight groove. Guide blocks are elastically installed on the front and rear side surfaces of the skeleton, and a driving component that cooperates with the guide blocks is provided at the arc-shaped groove. When the guide block on the skeleton slides from the guide groove to the inside of the arc-shaped groove, the driving component can deflect along the arc-shaped groove. In this process, the thrust of the driving component on the guide block can drive the skeleton to deflect to a horizontal state and fall onto the support bar.

2. The integrated ceiling ventilation device with filtering according to claim 1, characterized in that: The driving assembly includes a support rod arranged on the outside of the air duct, a connecting shaft is fixedly arranged at a position near the bottom end of the support rod, a sleeve is fixedly arranged at the outer side surface of the air duct, one end of the connecting shaft is inserted into the sleeve and rotates with the sleeve, and a coil spring is arranged between the connecting shaft and the sleeve, a slider is fixedly arranged at a position near the top of the support rod, the slider is slidably arranged in an arc groove, and a pressure block is elastically installed at one end of the slider away from the support rod, and one side of the pressure block is arranged as an inclined surface.

3. The integrated ceiling ventilation device with filtering according to claim 2 is characterized in that: A slot is provided at the end surface of the sliding block away from the support rod, and a pressure block is slidably arranged in the slot, a clamping block is elastically installed on the outer surface of the sliding block, a clamping slot matching the clamping block is provided on the top wall inside the arc-shaped slot, a reel is rotatably installed on the top wall inside the slot, and a second gear is provided at a position near the bottom end of the outer side of the reel through a second one-way bearing sleeve, a second pull rope is wound around the outer side of the reel, and the end of the second pull rope away from the reel is fixedly connected to the clamping block, a notch is provided on the outer side surface of the pressure block and close to the end of the reel, and a second rack meshing with the second gear is fixedly provided at the notch.

4. The integrated ceiling ventilation device with filtering according to claim 3 is characterized in that: A rotating shaft is rotatably installed in the air duct, a first gear is sleeved on the outside of the rotating shaft, and the first gear is sleeved on the outside of the rotating shaft through a first one-way bearing, a first rack meshing with the first gear is fixedly provided on the top surface of the skeleton, and the rotating shaft passes through one end of the air duct and cooperates with the connecting shaft for transmission.

5. The integrated ceiling ventilation device with filtering according to claim 4, characterized in that: Baffles are provided on both sides of the bottom of the through slot, a vertical plate is fixedly provided on one side of the baffle away from the through slot, a screw is rotatably mounted on the outer side of the vertical plate through a tapered roller bearing, a boss is fixedly provided on the bottom surface of the panel, and the screw passes through the boss and cooperates with its thread.

6. The integrated ceiling ventilation device with filtering according to claim 5, characterized in that: Insertion blocks are installed on both sides of the pull plate, and slots matched with the insertion blocks are arranged on the side of the baffle plate close to the pull plate.

7. The integrated ceiling ventilation device with filtering according to claim 1, characterized in that: An inclined block is fixedly arranged at the inner bottom end of the arc-shaped groove.

8. The integrated ceiling ventilation device with filtering according to claim 1, characterized in that: The frame is provided with a groove which is slidably matched with the guide block, and a first spring is fixedly arranged between the inner end surface of the groove and the guide block.

9. The integrated ceiling ventilation device with filtering according to claim 8, characterized in that: A positioning groove is provided on the inner wall of the groove, and a positioning block matching with the positioning groove is elastically mounted on one side of the guide block close to the positioning groove.

10. The integrated ceiling ventilation device with filtering according to claim 1, characterized in that: A gap is left between the right side surface of the support strip and the inner wall of the air duct.

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