Air purification device capable of replacing filter element in sealed mode

Abstract

The air purification device comprises a shell, a filtering device, an air inlet and outlet and an exhaust fan, an opening is formed in the middle of the top end of the shell, the filtering device is arranged in the opening, a folding cover is movably arranged on the outer side of the filtering device in a sleeved mode through a transmission mechanism, and the folding cover is provided with an air inlet and an air outlet. The transmission mechanism is in transmission connection with a driving mechanism arranged at the top end of the shell, and a limiting mechanism is further arranged at the top end of the shell. The driving mechanism drives the folding cover to ascend in a threaded transmission mode through the transmission mechanism, so that the filter plate is sealed, the sealed filter plate is taken out, the filter plate cannot be in contact with air, pollutant leakage is not prone to being caused, and secondary pollution cannot be caused.

Description

Technical Field

[0001] The utility model relates to a medical air purification device, in particular to an air purification device with a sealed replaceable filter element, belonging to the technical field of air purification. Background Art

[0002] An air purification device is a device that can filter the air. It is commonly used in operating rooms. Through the air purification device, it can filter out carbon dioxide exhaled by surgeons and patients in the operating room, carbon monoxide produced by surgical instruments, and some pathogens in the air.

[0003] After use, the current air purification equipment needs to remove and replace the filter element, that is, the filter plate. However, during the process of removing the filter plate, the filter plate is directly exposed to the outside and comes into contact with the air, which can easily cause pollutants to leak and cause secondary pollution. Utility Model Content

[0004] In order to solve the above technical problems, the utility model aims to provide an air purification device with a sealed replaceable filter element, and its technical solution is as follows:

[0005] An air purification device with a sealed replaceable filter element comprises a shell, a filter device, an air inlet and outlet, and an exhaust fan. An opening is provided in the middle of the top end of the shell, and the filter device is provided in the opening. A folding cover is provided on the outside of the filter device using a transmission mechanism movable set. The transmission mechanism is transmission-connected to a driving mechanism provided on the top end of the shell, and a limiting mechanism is also provided on the top end of the shell.

[0006] Furthermore, the filtering device includes a fixing plate, a filter plate and a sealing plate. The bottom of the filter plate is provided with a fixing plate, the fixing plate is connected to the bottom inner wall of the shell, and the top of the filter plate is provided with a sealing plate, the size of the sealing plate matches the size of the top opening of the shell.

[0007] Furthermore, the bottom end of the folding cover is connected to the fixed plate, and the top end is provided with a movable ring, and the movable ring is connected to the transmission mechanism arranged on both sides of the folding cover.

[0008] Furthermore, the transmission mechanism includes a slider and a threaded rod, the threaded rod is arranged on both sides of the folding cover, the two ends of the threaded rod are rotatably connected to the fixed plate and the sealing plate respectively, the movable ring is connected to the slider, and the slider is threadedly connected to the threaded rod.

[0009] Furthermore, the limiting mechanism includes a limiting block and a clamping rod, wherein the limiting block is arranged on the upper surface of the sealing plate, the upper end of the threaded rod passes through the sealing plate and extends above it, the clamping rod is radially protruded and arranged at the upper end of the threaded rod, and a clamping groove is radially arranged on one side of the limiting block close to the threaded rod, and the clamping groove matches the size of the clamping rod.

[0010] Furthermore, the upper end of the threaded rod is rotatably connected to the sealing plate via a sealing bearing.

[0011] Furthermore, the driving mechanism includes a vertical rod, a first gear and a second gear. The vertical rod is rotatably arranged on the top of the sealing plate, the first gear is set on the vertical rod, the second gear is set on the top of the threaded rod, and the first gear is meshed and connected with the second gear.

[0012] Furthermore, a rotating wheel is arranged at the top end of the vertical rod.

[0013] Furthermore, an ultraviolet sterilization lamp is arranged on the inner wall of the top of the shell.

[0014] Furthermore, the air inlet and outlet include an air inlet and an air outlet, which are respectively arranged on both sides of the shell, the exhaust fan is connected to the air outlet, and an air inlet pipe is arranged inside the air inlet.

[0015] Compared with the prior art, the utility model has the beneficial effect that the driving mechanism drives the folding cover to rise by means of threaded transmission through the transmission mechanism, thereby completing the sealing of the filter plate, and taking out the sealed filter plate. The filter plate will not come into contact with the air, is not easy to cause leakage of pollutants, and will not cause secondary pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the middle part A is enlarged;

[0019] Figure 3 for Figure 2 A three-dimensional diagram of the middle limit block;

[0020] Figure 4 This is a schematic diagram of the structure when the filter plate is half wrapped;

[0021] In the figure: 1, shell; 2, air inlet pipe; 3, exhaust fan; 4, fixing plate; 5, filter plate; 6, folding cover; 7, threaded rod; 8, movable ring; 9, slider; 10, clamping rod; 11, limit block; 12, second gear; 13, vertical rod; 14, first gear; 15, sealing plate; 16 ultraviolet germicidal lamp. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings. Example

[0023] Reference Figure 1-3 An air purification device with a sealed replaceable filter element comprises a shell 1, a filter device, an air inlet, an air outlet and an exhaust fan 3, wherein the air inlet and the air outlet are arranged on both sides of the shell 1, the exhaust fan 3 is connected with the air outlet, an air inlet pipe 2 is arranged inside the air inlet, and an ultraviolet sterilization lamp 16 is arranged on the top inner wall of the shell 1, which can perform ultraviolet sterilization on the air flowing through the shell.

[0024] An opening is provided at the top of the shell 1, and a filter plate 5 is inserted in the opening. A fixing plate 4 is provided at the bottom of the filter plate 5, and the fixing plate 4 is connected to the bottom inner wall of the shell 1. A sealing plate 15 is provided on the top of the filter plate 5, and a limiting mechanism for limiting the sealing plate 15 is provided on the top of the sealing plate 15.

[0025] A folding cover 6 is provided on the outer movable set of the filter plate 5, the bottom end of the folding cover 6 is connected to the fixed plate 4, a movable ring 8 is provided on the top of the folding cover 6, threaded rods 7 are provided on both sides of the folding cover 6, and the two ends of the threaded rod 7 are respectively rotatably connected to the corresponding fixed plate 4 and the sealing plate 15, the slider 9 is threadedly provided on the threaded rod 7, and the movable ring 8 is connected to the slider 9. Example

[0026] Reference Figure 1-3 The limiting mechanism includes a limiting block 11 and a clamping rod 10. The two limiting blocks 11 are arranged on both sides of the upper surface of the shell 1. The upper ends of the two threaded rods 7 penetrate the sealing plate 15 and extend above it. The upper ends of the two threaded rods 7 are rotatably connected to the sealing plate 15 through a sealing bearing to improve the sealing between the threaded rod 7 and the sealing plate 15 without affecting the rotation of the threaded rod 7. The clamping rod 10 is radially protruding at the upper end of the threaded rod 7. A clamping groove is radially arranged on one side of the limiting block 11 close to the threaded rod 7, and the size of the clamping groove matches the size of the two clamping rods 10.

[0027] A vertical rod 13 is rotatably provided on the upper surface of the sealing plate 15, a first gear 14 is sleeved on the vertical rod 13, a second gear 12 is sleeved on the top of the threaded rod 7, the first gear 14 is meshedly connected with the second gear 12, the first gear 14 can simultaneously drive the two gears 12 to rotate, thereby rotating the two threaded rods 7, and a rotating wheel is fixedly sleeved on the top of the vertical rod 13 to facilitate the rotation of the vertical rod 13. Example

[0028] like Figure 4As shown, when in use, the vertical rod 13 is rotated so that the first gear 14 drives the two second gears 12 to rotate, thereby rotating the two threaded rods 7. Under the action of the threaded transmission, the slider 9 moves downward, and drives the folding cover 6 to gradually fold to the bottom of the filter plate 5 through the movable ring 8. At the same time, the threaded rod 7 drives the clamping rod 10 to be clamped in the radial clamping groove of the limit block 11, completing the limiting of the sealing plate 15. At this time, the power of the exhaust fan 3 is turned on, and the air purification work can be carried out normally.

[0029] After use, the vertical rod 13 is rotated in the opposite direction, so that the first gear 14 drives the two second gears 12 to rotate, and then the two threaded rods 7 are rotated in the opposite direction. Under the action of the threaded transmission, the slider 9 moves upward, and the folding cover 6 is driven to gradually extend through the movable ring 8 until the filter plate 5 is wrapped. At the same time, the threaded rod 7 drives the clamping rod 10 to leave the radial clamping groove of the limit block 11, and the limit on the sealing plate 15 is released.

[0030] Through the transmission of the first gear 14 and the second gear 12, the two threaded rods 7 rotate in opposite directions, so that the slider 9 drives the movable ring 8 to move upward, so that the filter plate 5 can be wrapped. At the same time, the threaded rod 7 drives the two clamping rods 10 to leave the corresponding clamping grooves, and then the wrapped filter plate 5 is taken out from the opening at the upper end of the shell 1, which can reduce the leakage of pollutants when taking out the filter plate 5.

[0031] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An air purification device with a sealed replaceable filter element, comprising a housing (1), a filter device, an air inlet and outlet, and an exhaust fan (3), characterized in that: An opening is provided in the middle of the top end of the shell (1), a filter device is provided in the opening, a folding cover (6) is provided on the outside of the filter device using a transmission mechanism movable set, the transmission mechanism is in transmission connection with a driving mechanism provided at the top end of the shell (1), and a limiting mechanism is also provided at the top end of the shell (1).

2. An air purification device with a sealed replaceable filter element according to claim 1, characterized in that: The filtering device comprises a fixing plate (4), a filtering plate (5) and a sealing plate (15); the fixing plate (4) is arranged at the bottom of the filtering plate (5); the fixing plate (4) is connected to the inner wall of the bottom of the housing (1); the sealing plate (15) is arranged at the top of the filtering plate (5); the size of the sealing plate (15) matches the size of the top opening of the housing (1).

3. The air purification device with a sealed replaceable filter element according to claim 1, characterized in that: The bottom end of the folding cover (6) is connected to the fixed plate (4), and the top end is provided with a movable ring (8), and the movable ring (8) is connected to the transmission mechanism arranged on both sides of the folding cover (6).

4. The air purification device with a sealed replaceable filter element according to claim 3, characterized in that: The transmission mechanism comprises a slider (9) and a threaded rod (7), wherein the threaded rod (7) is arranged on both sides of the folding cover (6), and the two ends of the threaded rod (7) are rotatably connected to the fixed plate (4) and the sealing plate (15) respectively, and the movable ring (8) is connected to the slider (9), and the slider (9) is threadedly connected to the threaded rod (7).

5. The air purification device with a sealed replaceable filter element according to claim 4, characterized in that: The limiting mechanism comprises a limiting block (11) and a clamping rod (10), wherein the limiting block (11) is arranged on the upper surface of the sealing plate (15), the upper end of the threaded rod (7) penetrates the sealing plate (15) and extends to the upper part thereof, the clamping rod (10) is radially protruding and arranged on the upper end of the threaded rod (7), and a clamping groove is radially arranged on a side of the limiting block (11) close to the threaded rod (7), and the size of the clamping groove matches that of the clamping rod (10).

6. An air purification device with a sealed replaceable filter element according to claim 5, characterized in that: The upper end of the threaded rod (7) is rotatably connected to the sealing plate (15) via a sealing bearing.

7. The air purification device with a sealed replaceable filter element according to claim 1, characterized in that: The driving mechanism comprises a vertical rod (13), a first gear (14) and a second gear (12); the vertical rod (13) is rotatably arranged on the top of a sealing plate (15); the first gear (14) is sleeved on the vertical rod (13); the second gear (12) is sleeved on the top of a threaded rod (7); and the first gear (14) is meshingly connected with the second gear (12).

8. An air purification device with a sealed replaceable filter element according to claim 7, characterized in that: A rotating wheel is arranged at the top end of the vertical rod (13).

9. The air purification device with a sealed replaceable filter element according to claim 1, characterized in that: An ultraviolet sterilization lamp (16) is arranged on the inner wall of the top of the housing (1).

10. The air purification device with a sealed replaceable filter element according to claim 1, characterized in that: The air inlet and outlet comprise an air inlet and an air outlet, which are respectively arranged on both sides of the housing (1); the exhaust fan (3) is connected to the air outlet; and an air inlet pipe (2) is arranged inside the air inlet.

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