An integrated ceiling ventilation device with filtration

Abstract

The present invention discloses an integrated ceiling ventilation device with filtration, belonging to the technical field of ventilation devices, including an air duct installed above the ceiling. A panel is installed at the bottom of the air duct, and an air outlet is formed on the panel. A plurality of skeletons are arranged at a position close to the bottom end inside the air duct, and adjacent two skeletons are hinged to each other. A filter screen is fixedly arranged inside the skeleton; when replacing the filter screen of this device, it is not necessary to remove the panel. The skeleton and the filter screen can be pulled out by pulling down the pull plate. And during the installation process, with the assistance of the pressing block, a plurality of skeletons can be stably and orderly rearranged on the support strip, so as to complete the installation of the filter screen. During the whole process, the deflection height of the skeleton is limited, and it can avoid the interference between the skeleton and the air duct or the fan during the deflection process.

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;

[0008] On the front and rear side walls of the inner cavity of the air duct, straight grooves are provided. The straight grooves are in a vertical state. An arc-shaped guiding groove is connected to the top end of the straight groove. One end of the guiding groove away from the straight groove is connected to an arc-shaped groove. On the front and rear side surfaces of the framework, guiding blocks are elastically installed. At the arc-shaped groove, a driving component matching with the guiding block is provided. When the guiding blocks on the framework slide from the guiding groove into the arc-shaped groove, the driving component can deflect along the arc-shaped groove. During this process, the driving force of the driving component on the guiding block can drive the framework to deflect to a horizontal state and fall onto the support bars.

[0009] As a further scheme of the present invention: The driving component includes a support rod arranged on the outer side of the air duct. At a position near the bottom end of the support rod, a connecting shaft is fixedly arranged. On the outer side surface of the air duct, a sleeve is fixedly arranged. One end of the connecting shaft is inserted into the sleeve and is rotationally matched with the sleeve. And a coil spring is arranged between the connecting shaft and the sleeve. At a position near the top end of the support rod, a slider is fixedly arranged. The slider is slidably arranged in the arc-shaped groove. And at one end of the slider away from the support rod, a pressing block is elastically installed. One side of the pressing block is set as an inclined surface.

[0010] As a further scheme of the present invention: At the end surface of one end of the slider away from the support rod, a notch is provided. The pressing block is slidably arranged at the notch. On the outer side surface of the slider, a clamping block is elastically installed. At the top wall inside the arc-shaped groove, a clamping groove matching with the clamping block is provided. At the top wall inside the notch, a winding shaft is rotationally installed. And near the bottom end of the outer side of the winding shaft, a second gear is sleeved through a second one-way bearing. A second pulling rope is wound around the outer side of the winding shaft. One end of the second pulling rope away from the winding shaft is fixedly connected with the clamping block. At one end of the outer side surface of the pressing block near the winding shaft, a notch is provided. At the notch, a second rack meshing with the second gear is fixedly arranged.

[0011] As a further scheme of the present invention: A rotating shaft is rotationally installed in the air duct. A first gear is sleeved on the outer side of the rotating shaft. And the first gear is sleeved on the outer side of the rotating shaft through a first one-way bearing. On the top surface of the framework, a first rack meshing with the first gear is fixedly arranged. One end of the rotating shaft passing through the air duct is in transmission cooperation with the connecting shaft.

[0012] As a further scheme of the present invention: On both sides of the bottom of the through groove, baffles are provided. On the side of the baffle away from the through groove, a vertical plate is fixedly arranged. On the outer side surface of the vertical plate, a screw rod is rotationally installed through a tapered roller bearing. On the bottom surface of the panel, a convex platform is fixedly arranged. The screw rod passes through the convex platform and is in threaded cooperation with it.

[0013] As a further scheme of the present invention: Plug blocks are installed on both side surfaces of the pulling plate. On the side surface of the baffle near the pulling plate, a slot matching with the plug block is provided.

[0014] As a further scheme of the present invention: An inclined block is fixedly arranged at the bottom end inside the arc-shaped groove.

[0015] As a further solution of the present invention: a groove slidably engaged with the guide block is provided on the skeleton, and a first spring is fixedly arranged between the inner end face of the groove and the guide block.

[0016] As a further solution of the present invention: a positioning groove is provided on the inner wall of the groove, and a positioning block elastically mounted on one side of the guide block close to the positioning groove is engaged with the positioning groove.

[0017] As a further solution of the present invention: a gap is left between the right side surface of the support bar and the inner wall of the air duct.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: When replacing the filter screen, it is not necessary to remove the panel of this device. By pulling down the pull plate, the skeleton and the filter screen can be pulled out. And during the installation process, with the assistance of the pressing block, multiple skeletons can be stably and orderly rearranged on the support bar, thus completing the installation of the filter screen. During the whole process, the height of deflection of the skeleton is limited, which can avoid interference between the skeleton and the air duct or the fan during the deflection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the drawings and embodiments.

[0020] Figure 1 is the schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is the three-dimensional structure diagram of the present invention;

[0022] Figure 3 is the present invention Figure 2 magnified schematic diagram of the structure at A;

[0023] Figure 4 is the schematic diagram of the connection structure of the guide block of the present invention;

[0024] Figure 5 is the schematic diagram of the skeleton above the support bar of the present invention;

[0025] Figure 6 is the present invention Figure 5 magnified schematic diagram of the structure at B;

[0026] Figure 7 is the schematic diagram of the support bar structure of the present invention;

[0027] Figure 8 is the present invention Figure 7 magnified schematic diagram of the structure at C;

[0028] Figure 9 is the schematic diagram of the through groove structure of the present invention;

[0029] Figure 10 It is a schematic diagram of the second rack structure of the present invention;

[0030] Figure 11 It is a schematic diagram of the pressing block and the clamping block structure of the present invention;

[0031] Figure 12 It is a schematic diagram of the volute spring structure of the present invention.

[0032] In the figure: 1, air duct; 101, straight groove; 102, guiding groove; 103, arc groove; 1301, clamping groove; 104, inclined block; 2, panel; 201, air outlet; 202, through groove; 3, volute spring; 4, framework; 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, guiding block; 1001, positioning block; 11, first pull rope; 12, support bar; 13, slider; 14, pressing block; 1401, inclined plane; 1402, second rack; 15, second pull rope; 16, clamping block; 17, pull plate; 1701, inserting block; 18, vertical plate; 1801, screw rod; 19, baffle; 20, reel. Detailed implementation manners

[0033] As Figures 1 - 10 shown, an integrated ceiling ventilation device with filtration includes an air duct 1 installed above the ceiling. A panel 2 is installed at the bottom of the air duct 1. Referring to Figure 1 shown, an air outlet 201 is formed on the panel 2, so that the heated gas can be discharged through the panel 2. In actual use, the panel 2 can be fixedly combined with the air duct 1 and installed at the bottom of the ceiling. Since the fan in the air duct 1 is a mature technical means, the installation and working principle of the fan will not be elaborated here.

[0034] A plurality of frameworks 4 are arranged at a position close to the bottom end inside the air duct 1, and adjacent two frameworks 4 are hinged to each other. A filter screen 401 is fixedly arranged inside the framework 4. By arranging the filter screen 401, it is beneficial to filter the external air. Referring to Figure 5 shown, in order to support the plurality of frameworks 4, support bars 12 are fixedly arranged on the front and rear side walls inside the air duct 1 in this solution. Referring to Figure 5 shown, a gap is left between the side surface of the support bar 12 and the inner wall of the air duct 1, and the above-mentioned frameworks 4 are arranged on the support bars 12. Combining Figures 7 - 9 shown, a pull plate 17 is arranged on one side of the framework 4 at the end, and the framework 4 at the end is hinged to the pull plate 17. Referring to Figure 9As shown in the figure, a through groove 202 is formed in the panel 2, and the pull plate 17 is in a vertical state and passes through the through groove 202. With this structure, when it is necessary to clean the filter screen 401 in the air duct 1, the pull plate 17 can be pulled downward to extract the plurality of skeletons 4 one by one through the through groove 202. Since two adjacent skeletons 4 are hinged to each other, during the process of extracting the plurality of skeletons 4, the height of the deflected skeleton 4 is limited, so that the interference between the skeleton 4 and the air duct 1 during deflection can be avoided (the commonly used air duct 1 is generally an L-shaped elbow to facilitate one end of the air duct 1 to extend outside the wall).

[0035] In order to install the skeleton 4, straight grooves 101 are formed on the front and rear side walls of the inner cavity of the air duct 1. The straight grooves 101 are in a vertical state. An arc-shaped guiding groove 102 is formed at the top end of the straight groove 101 on the inner wall of the air duct 1. An arc-shaped groove 103 is formed at one end of the guiding groove 102 away from the straight groove 101 on the inner wall of the air duct 1. The straight groove 101, the arc-shaped groove 103 and the guiding groove 102 communicate with each other, and the straight groove 101, the arc-shaped groove 103 and the guiding groove 102 are all in a through state. Guiding blocks 10 are elastically installed on the front and rear side surfaces of the skeleton 4. The guiding blocks 10 are near the top end of the skeleton 4. During the installation process, the first skeleton 4 can be inserted upward into the air duct 1 so that the guiding blocks 10 on the first skeleton 4 are in the straight grooves 101. Then, as the skeleton 4 is pushed upward, the guiding blocks 10 on the first skeleton 4 will move to the guiding groove 102. The limiting of the guiding blocks 10 by the guiding groove 102 can cause the first skeleton 4 to gradually deflect towards the direction close to the support bar 12;

[0036] Further, a driving component matching with the guiding block 10 is arranged at the arc-shaped groove 103. When the guiding block 10 on the skeleton 4 slides from the guiding groove 102 into the arc-shaped groove 103, the driving component can deflect along the arc-shaped groove 103. During this process, the thrust of the driving component on the guiding 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-shaped groove 103 and the deflection center of the skeleton 4 can be in a collinear state.

[0037] The above driving component includes a support rod 7 arranged outside the air duct 1. A connecting shaft 701 is fixedly arranged at a position near the bottom end of the support rod 7. A sleeve 8 is fixedly arranged on the outer side surface of the air duct 1. One end of the connecting shaft 701 is inserted into the sleeve 8 and is rotationally matched with the sleeve 8. A coil spring 3 is sleeved outside the connecting shaft 701. Two ends of the coil spring 3 are fixedly connected between the outer wall of the connecting shaft 701 and the inner wall of the sleeve 8 respectively. A slider 13 is fixedly arranged at a position near the top end of the support rod 7. The slider 13 is slidably arranged in the arc-shaped groove 103. A pressing block 14 is elastically installed at one end of the slider 13 away from the support rod 7. Refer to Figure 11As shown, one side of the pressing block 14 is provided with an inclined surface 1401. During the process of the guiding block 10 sliding from the guiding groove 102 to the inside of the arc-shaped groove 103, the guiding block 10 will contact the inclined surface 1401 of the pressing block 14, thereby squeezing the pressing block 14 into the slider 13;

[0038] Combined with Figures 10 - 12 As shown, a notch is formed at the end face of the slider 13 away from the support rod 7. The above-mentioned pressing block 14 is slidably arranged at the notch. A clamping block 16 is elastically installed on the outer side surface of the slider 13. A reel 20 is rotatably installed at the top wall inside the notch, and a second gear is sleeved at a position near the bottom end on the outer side of the reel 20. The second gear is matched with the reel 20 through a second one-way bearing. A second pulling rope 15 is wound around the outer side of the reel 20. One end of the second pulling rope 15 is fixedly matched with the reel 20, and the other end of the second pulling rope 15 passes through the slider 13 and is fixedly connected to the clamping block 16, and the second pulling rope 15 is slidably matched with the slider 13. A notch is formed at one end of the outer side surface of the pressing block 14 close to the reel 20, and a second rack 1402 meshing with the second gear is fixedly arranged at the notch. When the guiding block 10 on the skeleton 4 passes over the pressing block 14, the pressing block 14 can pop out, so that the rotation of the reel 20 can be driven through the meshing of the second rack 1402 and the second gear and the second pulling rope 15 can be wound. During this process, the clamping block 16 can be pulled by the second pulling rope 15 to contract into the slider 13. A clamping groove 1301 matched with the clamping block 16 is formed at the top wall inside the arc-shaped groove 103. When the clamping block 16 is in the popped state and inserted into the clamping groove 1301, the slider 13 can be locked in the arc-shaped groove 103.

[0039] In order to drive the support rod 7 to rotate around the connecting shaft 701, a rotating shaft 6 is rotatably installed in the air duct 1 in this solution. A first gear 601 is sleeved on the outer side of the rotating shaft 6, and the first gear 601 is sleeved on the outer side of the rotating shaft 6 through a first one-way bearing. A first rack 402 meshing with the first gear 601 is fixedly arranged on the top surface of the skeleton 4. During the process of the skeleton 4 being inserted into the air duct 1, the rotation of the rotating shaft 6 can be driven through the meshing of the first gear 601 and the first rack 402. One end of the rotating shaft 6 passing through the air duct 1 is in transmission cooperation with the above-mentioned connecting shaft 701. Through this structure, the support rod 7 can be driven to deflect.

[0040] In actual use, when the filter screen 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 skeleton 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 skeleton 4 deflects, this skeleton 4 will gradually contact the side edge of the through groove 202 and rotate around the side edge of the through groove 202 and finally be in a vertical state. Continuously pulling the pull plate 17 downward, multiple skeletons 4 from right to left can all be pulled out through the through groove 202. By arranging multiple skeletons 4 and hinging adjacent two skeletons 4, the deflection height of the skeleton 4 can be effectively controlled, so that during the process of pulling out the skeleton 4, the skeleton 4 can be prevented from interfering with the air duct 1 or the fan. Moreover, the first gear 601 is matched with the rotating shaft 6 through the first one-way bearing. Therefore, during the process of pulling out the skeleton 4, the first gear 601 will only be driven to rotate in one direction by the first rack 402;

[0041] 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.

[0042] In summary, when replacing the filter screen 401, it is not necessary to remove the panel 2. By pulling down the pull plate 17, the framework 4 and the filter screen 401 can be pulled out. And during the installation process, with the assistance of the pressing block 14, multiple frameworks 4 can be stably and orderly rearranged on the support bars 12, thus completing the installation of the filter screen 401. During the whole process, the height of deflection of the framework 4 is limited, which can avoid interference between the framework 4 and the air duct 1 or the fan during the deflection process.

[0043] As Figures 1 - 3 shown, hinges are installed on the opposite sides of the two frameworks 4, and through this structure, rotational cooperation between the two frameworks 4 can be achieved.

[0044] End sleeves are fixedly sleeved on the ends of the connecting shaft 701 and the rotating shaft 6, and the two end sleeves are connected by a belt 5 to drive the connecting shaft 701 and the support rod 7 to rotate.

[0045] Referring to Figure 4 shown, grooves that are slidably matched with the guide blocks 10 are formed on the framework 4. A first spring is fixedly arranged between the inner end face of the groove and the guide block 10. A positioning groove 9 is formed on the inner wall of the groove, and an installation groove is formed on one side face of the guide block 10 close to the positioning groove 9. A positioning block 1001 is slidably arranged in the installation groove, and a spring is fixedly arranged between the inner end face of the installation groove and the positioning block 1001. Combining Figure 7 shown, an inclined block 104 is fixedly arranged at the inner bottom end of the arc-shaped groove 103, and the outer side face of the inclined block 104 is inclined. Through this structure, when the framework 4 deflects to the horizontal state and falls onto the top of the support bar 12, the guide block 10 on the framework 4 is squeezed by the inclined block 104 and contracts into the framework 4, which is beneficial to moving the guide block 10 out of the arc-shaped groove 103. When the positioning block 1001 is aligned with the positioning groove 9, the positioning block 1001 can pop out and be inserted into the positioning groove 9, so that the guide block 10 is locked in the groove, which is beneficial to avoiding interference between the guide block 10 and structures such as the arc-shaped groove 103 during the process of taking out the framework 4. Further, a pull block can be slidably assembled on the end face of the guide block 10 far from the framework 4, and a first pull rope 11 is fixedly arranged between the pull block and the positioning block 1001. The first pull rope 11 passes through the guide block 10 and is slidably matched with it. Through this structure, it is beneficial to drive the positioning block 1001 to contract through the first pull rope 11 to release the lock on the guide block 10.

[0046] As Figure 6 shown, an installation hole that is slidably matched with the clamping block 16 is formed on the outer side face of the slider 13, and a second spring is fixedly arranged between the inner end face of the installation hole and the clamping block 16.

[0047] Referring to Figure 8As shown, baffles 19 are provided on both sides of the bottom of the through groove 202. A vertical plate 18 is fixedly provided on the side of the baffle 19 away from the through groove 202. A screw rod 1801 is rotatably installed on the outer side surface of the vertical plate 18 through a tapered roller bearing. A boss is fixedly provided on the bottom surface of the panel 2. The screw rod 1801 passes through the boss and is in threaded cooperation with it. In addition, insertion blocks 1701 can be installed on both side surfaces of the pull plate 17, and the insertion blocks 1701 can be assembled on the pull plate 17 by an elastic cooperation method. Slots matching the insertion blocks 1701 can be opened on the side surface of the baffle 19 close to the pull plate 17. In actual use, this structure is beneficial to locking the pull plate 17. Moreover, during the process of inserting the skeleton 4 into the air duct 1, the baffle 19 can be driven to fit with the skeleton 4, so as to improve the stability of the movement of the skeleton 4. Of course, the top end face of the insertion block 1701 can be inclined so that the insertion block 1701 can be quickly inserted between the two baffles 19.

[0048] Refer to Figure 10 As shown, an annular groove for winding the second pull rope 15 is provided on the outer peripheral surface of the reel 20.

[0049] A limiting spring is fixedly provided between the inner end face of the notch and the pressing block 14.

Claims

1. An integrated ceiling ventilation device with filtration, comprising an air duct installed above the ceiling, a panel is installed at the bottom of the air duct, an air outlet is formed on the panel, and a plurality of skeletons are arranged at a position close to the bottom end inside the air duct, and it is characterized in that: Two adjacent skeletons are hinged to each other. A filter screen is fixedly arranged inside the skeleton. Support bars are fixedly arranged on the front and rear side walls inside the air duct. A pull plate is hinged to one side of the skeleton at the end. Through slots are formed in the panel, and the pull plate is in a vertical state and passes through the through slots; Vertical straight slots are formed on the front and rear side walls inside the cavity of the air duct. The arc-shaped guide slots are communicated with the top ends of the straight slots. The arc-shaped guide slots are communicated with arc-shaped slots at the ends far away from the straight slots. Guide blocks are elastically installed on the front and rear side surfaces of the skeleton. A driving component matched with the guide blocks is arranged at the arc-shaped slots. When the guide blocks on the skeleton slide from the guide slots into the arc-shaped slots, the driving component can deflect along the arc-shaped slots. During this process, the guide blocks can be driven by the thrust of the driving component to deflect to a horizontal state and fall onto the support bars; The driving component includes a support rod arranged outside the air duct. A connecting shaft is fixedly arranged at a position close to the bottom end of the support rod. A sleeve is fixedly arranged on the outer side surface of the air duct. One end of the connecting shaft is inserted into the sleeve and is rotationally matched with the sleeve. A coil spring is arranged between the connecting shaft and the sleeve. A slider is fixedly arranged at a position close to the top end of the support rod. The slider is slidably arranged in the arc-shaped slot. A pressing block is elastically installed at one end of the slider far away from the support rod. One side of the pressing block is set as an inclined surface; A notch is formed at the end face of the slider far away from the support rod. The pressing block is slidably arranged at the notch. A clamping block is elastically installed on the outer side surface of the slider. A clamping groove matched with the clamping block is formed at the top wall inside the arc-shaped slot. A scroll is rotatably installed at the top wall inside the notch. A second gear is sleeved on the outer side of the scroll close to the bottom end through a second one-way bearing. A second pull rope is wound around the outer side of the scroll. One end of the second pull rope far away from the scroll is fixedly connected with the clamping block. A notch is formed at one end of the outer side surface of the pressing block close to the scroll. A second rack meshed with the second gear is fixedly arranged at the notch; A rotating shaft is rotatably installed inside the air duct. A first gear is sleeved on the outer side of the rotating shaft. The first gear is sleeved on the outer side of the rotating shaft through a first one-way bearing. A first rack meshed with the first gear is fixedly arranged on the top surface of the skeleton. One end of the rotating shaft passing through the air duct is in transmission cooperation with the connecting shaft.

2. The integrated ceiling ventilation device with filtration according to claim 1, characterized in that: Baffles are arranged on both sides at the bottom of the through slot. Vertical plates are fixedly arranged on the sides of the baffles far away from the through slot. A screw rod is rotatably installed on the outer side surface of the vertical plate through a tapered roller bearing. A boss is fixedly arranged on the bottom surface of the panel. The screw rod passes through the boss and is in threaded cooperation with the boss.

3. The integrated ceiling ventilation device with filtration according to claim 2, characterized in that: Insert blocks are installed on both side surfaces of the pull plate. Insert slots matched with the insert blocks are formed on the side surfaces of the baffles close to the pull plate.

4. The integrated ceiling ventilation device with filtration according to claim 1, characterized in that: An inclined block is fixedly arranged at the bottom end inside the arc-shaped slot.

5. The integrated ceiling ventilation device with filtration according to claim 1, wherein: A groove slidably matched with the guide block is formed on the skeleton. A first spring is fixedly arranged between the inner end face of the groove and the guide block.

6. The integrated ceiling ventilation device with filtration according to claim 5, characterized in that: A positioning groove is formed on the inner wall of the groove. A positioning block matched with the positioning groove is elastically installed on one side of the guide block close to the positioning groove.

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

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