An air sterilization device

Abstract

The present invention relates to the technical field of sterilization equipment, and in particular to an air sterilization device, comprising a machine base, an ultraviolet lamp and a first drive assembly, wherein the ultraviolet lamp is rotatably arranged on the machine base, the first drive assembly is connected between the ultraviolet lamp and the machine base, and the first drive assembly is used to drive the ultraviolet lamp to switch between a horizontal irradiation mode and a vertical irradiation mode. The present invention is provided with an ultraviolet lamp and a first drive assembly, and when the ultraviolet lamp is in the vertical irradiation mode, the ultraviolet light emitted by the ultraviolet lamp radiates to the surroundings of the disinfection area, and when the ultraviolet lamp is in the horizontal irradiation mode, the ultraviolet lamp faces downwards from the disinfection area so as to improve the sterilization efficiency of the area below the disinfection area, and by reciprocatingly switching the ultraviolet lamp between the horizontal irradiation mode and the vertical irradiation mode, the irradiation range of the ultraviolet lamp is expanded and the blind spots of the disinfection area are eliminated.

Description

Technical Field

[0001] The present invention relates to the technical field of sterilization equipment, in particular to an air sterilization device. Background Art

[0002] Hospitals are places where patients gather. Many patients may carry various infectious pathogens. These pathogens are suspended in the air and spread throughout the hospital. In order to reduce the pathogen content in the hospital air, the air needs to be sterilized.

[0003] Common air sterilization methods typically combine chemical and physical sterilization. Chemical sterilization methods typically involve spraying disinfectants, while physical sterilization methods typically involve ultraviolet irradiation. Ultraviolet irradiation sterilization requires the use of ultraviolet light emitted by ultraviolet sterilization equipment. Existing ultraviolet sterilization equipment includes a frame, a lamp stand, and ultraviolet lamps. The lamp stand is vertically mounted on the frame, and the ultraviolet lamps are mounted on the lamp stand. However, the presence of the frame in existing ultraviolet equipment results in a permanent blind spot below the frame during ultraviolet irradiation, hindering the thorough sterilization of all locations within the sterilization area. Summary of the Invention

[0004] Based on this, it is necessary to provide an air sterilization device to address the problems existing in the current ultraviolet sterilization equipment, so as to solve the problem that there are always dead corners in the sterilization area during the ultraviolet irradiation process.

[0005] The above purpose is achieved through the following technical solutions:

[0006] An air sterilization device comprises:

[0007] base;

[0008] Ultraviolet lamp, rotatably mounted on the machine base;

[0009] The first driving component is connected between the ultraviolet lamp and the base, and is used to drive the ultraviolet lamp to switch between the horizontal irradiation mode and the vertical irradiation mode.

[0010] Preferably, the first drive assembly includes a first drive source, a connecting seat, a first bevel gear and a second bevel gear, the first drive source is arranged on the machine base, the connecting seat is rotatably arranged on the machine base, the ultraviolet lamp is arranged on the connecting seat, the ultraviolet lamp and the connecting seat can rotate synchronously, the first bevel gear is coaxially fixedly connected to the output shaft of the first drive source, the second bevel gear is arranged on the side of the connecting seat, the axis of the second bevel gear is perpendicular to the axis of the first bevel gear, and the second bevel gear is meshed with the first bevel gear.

[0011] Preferably, the ultraviolet lamp includes an intermediate support, a lamp tube rack and an ultraviolet lamp tube, the intermediate support is connected to the connecting seat, the lamp tube rack is mounted on the intermediate support, and the lamp tube rack can move relative to the intermediate support along its length direction, the ultraviolet lamp tube is arranged on the lamp tube rack, and the axis of the ultraviolet lamp tube extends along the length direction of the lamp tube rack.

[0012] Preferably, the ultraviolet lamp includes an intermediate support, a lamp tube rack and an ultraviolet lamp tube. The intermediate support is connected to the connecting seat. There are two lamp tube racks and two ultraviolet lamp tubes. The two lamp tube racks are spaced apart from each other and are arranged on the intermediate support. The two lamp tube racks can approach or move away synchronously along their length directions. The two ultraviolet lamp tubes are connected to the two lamp tube racks one by one, and the axes of the ultraviolet lamps extend along the length direction of the lamp tube racks connected to them.

[0013] Preferably, a second driving assembly is connected between the lamp tube holder and the intermediate support, and the second driving assembly is used to drive the lamp tube holder to move relative to the intermediate support along its length direction.

[0014] Preferably, the second drive assembly includes a second drive source, a first drive gear and a first rack, the second drive source is arranged on the intermediate support, the first drive gear is fixedly connected to the output shaft of the second drive source, the first rack is arranged on the side of the lamp tube holder, and the first rack extends along the length direction of the lamp tube holder, and the first rack and the first drive gear are engaged with each other.

[0015] Preferably, a third driving assembly is provided between the lamp tube holder and the intermediate support, and the third driving assembly is used to drive the lamp tube holder to swing back and forth around the axis of the ultraviolet lamp within a preset angle range when the lamp tube holder moves along its length direction relative to the intermediate support.

[0016] Preferably, the third driving assembly includes a guide column and a guide rail, the guide column is arranged on the side of the lamp tube holder, and the guide column is located on one side of the rack, the guide rail is arranged on the side of the middle support, and the guide rail extends along the length direction of the lamp tube holder, and a guide groove is opened on one side of the guide rail toward the guide column, the guide groove is a wavy line, and the guide column is slidably connected in the guide groove.

[0017] Preferably, a fourth driving assembly is provided between the intermediate support and the connecting seat, and the fourth driving assembly is used to drive the intermediate support to move along its length direction.

[0018] Preferably, the fourth drive assembly includes a third drive source, a second drive gear and a second rack, the third drive source is arranged on the connecting seat, the second drive gear is fixedly connected to the output shaft of the third drive source, the second rack is arranged on the intermediate support, and the second rack extends along the length direction of the intermediate support, and the second rack is engaged with the second drive gear.

[0019] The beneficial effects of the present invention are:

[0020] The present invention is provided with an ultraviolet lamp and a first driving component. When the ultraviolet lamp is in a vertical irradiation mode, the ultraviolet light emitted by the ultraviolet lamp radiates to the surrounding areas of the disinfection area. When the ultraviolet lamp is in a horizontal irradiation mode, the ultraviolet lamp is directed toward the bottom of the disinfection area to facilitate sterilization of the bottom of the disinfection area. By switching the ultraviolet lamp back and forth between the horizontal irradiation mode and the vertical irradiation mode, the irradiation range of the ultraviolet lamp is expanded, and the irradiation blind spots of the disinfection area are eliminated, so that the ultraviolet lamp can better disinfect the disinfection area. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an overall schematic diagram of an air sterilization device of the present invention;

[0022] Figure 2 A side view of an air sterilizing device according to the present invention;

[0023] Figure 3 This is a cross-sectional view of an air sterilization device according to the present invention;

[0024] Figure 4 This is a schematic diagram of the position of a first drive assembly in an air sterilization device of the present invention;

[0025] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 6 This is a schematic diagram of the position of the fourth drive assembly in an air sterilization device of the present invention;

[0027] Figure 7 for Figure 6 Schematic diagram of the enlarged structure at B in the middle;

[0028] Figure 8 This is an exploded view of an ultraviolet lamp in an air sterilization device of the present invention;

[0029] Figure 9 for Figure 8 Schematic diagram of the enlarged structure at C in the middle;

[0030] Figure 10 for Figure 8 Front view of

[0031] Figure 11 for Figure 10 Axonal view of the middle DD half section;

[0032] Figure 12 for Figure 11 Schematic diagram of the enlarged structure at E in the middle;

[0033] Figure 13 This is a schematic diagram of a vertical irradiation mode of an ultraviolet lamp in an air sterilization device of the present invention;

[0034] Figure 14 Schematic diagram of the horizontal irradiation mode of the ultraviolet lamp in an air sterilization device of the present invention Figure 1 ;

[0035] Figure 15 Schematic diagram of the horizontal irradiation mode of the ultraviolet lamp in an air sterilization device of the present invention Figure 2 ;

[0036] Figure 16 Schematic diagram of the horizontal irradiation mode of the ultraviolet lamp in an air sterilization device of the present invention Figure 3 .

[0037] in:

[0038] 100, machine base; 110, dust cover; 120, wire;

[0039] 200, ultraviolet lamp; 210, intermediate support; 211, first limiting groove; 220, lamp holder; 230, ultraviolet lamp;

[0040] 300, first drive assembly; 310, first drive source; 320, connecting seat; 321, limit block; 330, first bevel gear; 340, second bevel gear;

[0041] 400, second drive assembly; 410, second drive source; 420, first drive gear; 430, first rack;

[0042] 500, third drive assembly; 510, guide post; 520, guide rail; 521, guide groove; 522, second limiting groove; 530, wire guide groove;

[0043] 600, fourth drive assembly; 610, third drive source; 620, second drive gear; 630, second rack. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0045] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or component being referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0046] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0047] like Figures 1 to 16 As shown, an air sterilization device includes a base 100, an ultraviolet lamp 200 and a first drive assembly 300. The ultraviolet lamp 200 is rotatably arranged on the base 100. The ultraviolet lamp 200 has a horizontal irradiation mode and a vertical irradiation mode. The first drive assembly 300 is connected between the ultraviolet lamp 200 and the base 100. The first drive assembly 300 is used to drive the ultraviolet lamp 200 to switch between the horizontal irradiation mode and the vertical irradiation mode.

[0048] When in use, the staff moves the machine base 100 into the disinfection area. After the staff leaves the disinfection area, the first driving component 300 and the ultraviolet lamp 200 are started by remote control, so that the first driving component 300 drives the ultraviolet lamp 200 to switch between the horizontal irradiation mode and the vertical irradiation mode. In the initial state, the ultraviolet lamp 200 is in the vertical irradiation mode. At this time, the ultraviolet light emitted by the ultraviolet lamp 200 radiates to the surroundings of the disinfection area for radiation sterilization around the disinfection area. Under the driving action of the first driving component 300, the ultraviolet lamp 200 is switched from the horizontal irradiation mode to the vertical irradiation mode. The vertical irradiation mode gradually rotates to the horizontal irradiation mode. At this time, the ultraviolet rays emitted by the ultraviolet lamp 200 are directed toward the bottom of the disinfection area, and the lower part of the disinfection area is radiated and disinfected. Compared with the ultraviolet lamp 200 vertically set on the machine base 100, when the ultraviolet lamp 200 is rotated to the horizontal irradiation mode, the ultraviolet rays emitted by the ultraviolet lamp 200 can be directed toward the lower part of the disinfection area for radiant disinfection. In this way, the radiation sterilization range of the ultraviolet lamp 200 can be expanded, and the dead corner area below the machine base 100 can be eliminated, so that the ultraviolet lamp 200 can better disinfect the disinfection area.

[0049] It should be added that the reason why the staff starts the ultraviolet lamp 200 through remote control after leaving the disinfection area is that the ultraviolet rays generated by the ultraviolet lamp 200 are harmful to the human body if the irradiation time is too long.

[0050] In a further embodiment, Figure 6 and Figure 7 As shown, the first drive assembly 300 includes a first drive source 310, a connecting seat 320, a first bevel gear 330 and a second bevel gear 340. The first drive source 310 is arranged on the machine base 100. The first drive source 310 is specifically a motor. The connecting seat 320 is rotatably set on the machine base 100. The ultraviolet lamp 200 is arranged on the connecting seat 320. The ultraviolet lamp 200 and the connecting seat 320 can rotate synchronously. The first bevel gear 330 is coaxially fixedly connected to the output shaft of the first drive source 310. The second bevel gear 340 is arranged on the side of the connecting seat 320. The axis of the second bevel gear 340 is perpendicular to the axis of the first bevel gear 330, and the second bevel gear 340 is engaged with the first bevel gear 330.

[0051] When it is necessary to drive the ultraviolet lamp 200 to switch between the vertical irradiation mode and the horizontal irradiation mode, the staff starts the first driving source 310. At this time, the first driving source 310 drives the first bevel gear 330 to rotate synchronously. The first bevel gear 330 drives the second bevel gear 340 to rotate through gear meshing. The second bevel gear 340 drives the connecting seat 320 to rotate synchronously. The connecting seat 320 drives the ultraviolet lamp 200 to rotate synchronously by ninety degrees. In this way, the switching of the ultraviolet lamp 200 between the vertical irradiation mode and the horizontal irradiation mode is completed.

[0052] In order to improve the radiation range of the ultraviolet lamp 200, in a further embodiment, as Figure 7 、 Figure 8 and Figure 14 As shown, the ultraviolet lamp 200 includes an intermediate support 210, a lamp tube rack 220 and an ultraviolet lamp tube 230. The intermediate support 210 is connected to the connecting seat 320. The lamp tube rack 220 is arranged on the intermediate support 210, and the lamp tube rack 220 can move relative to the intermediate support 210 along its length direction. The ultraviolet lamp tube 230 is arranged on the lamp tube rack 220, and the axis of the ultraviolet lamp tube 230 extends along the length direction of the lamp tube rack 220.

[0053] When the ultraviolet lamp 200 is rotated to the horizontal irradiation mode, Figure 14 As shown, the staff moves the lamp tube rack 220 along its length direction away from the side of the machine base 100. At this time, the lamp tube rack 220 drives the ultraviolet lamp tube 230 to move synchronously, so that the lower position of the disinfection area directly irradiated by the ultraviolet lamp tube 230 is changed, thereby increasing the downward radiation range of the ultraviolet lamp tube 230 to enhance the disinfection effect of ultraviolet rays on the lower part of the disinfection area.

[0054] In order to further improve the radiation range of the ultraviolet lamp 200, in a further embodiment, as Figure 7 、 Figure 8 and Figure 16 As shown, the ultraviolet lamp 200 includes an intermediate support 210, a lamp tube rack 220 and an ultraviolet lamp tube 230. The intermediate support 210 is connected to the connecting seat 320. There are two lamp tube racks 220 and two ultraviolet lamp tubes 230. The two lamp tube racks 220 are spaced apart from each other and are arranged on the intermediate support 210. The two lamp tube racks 220 can approach or move away synchronously along their length directions. The two ultraviolet lamp tubes 230 are connected to the two lamp tube racks 220 in a one-to-one correspondence, and the axes of the ultraviolet lamp tubes 230 extend along the length direction of the lamp tube rack 220 connected thereto.

[0055] When the ultraviolet lamp 200 is rotated to the horizontal irradiation mode, the staff makes the two lamp tube racks 220 move synchronously along their length direction toward the side away from the machine base 100. At this time, the lamp tube racks 220 drive the corresponding ultraviolet lamp tubes 230 to move synchronously, thereby changing the lower position of the disinfection area directly irradiated by the two ultraviolet lamp tubes 230. Since there are two ultraviolet lamp tubes 230 and since the two ultraviolet lamp tubes 230 are located on both sides of the middle support 210, compared with setting only one ultraviolet lamp tube 230, the purpose of further improving the radiation range of the ultraviolet lamp tube 230 is achieved.

[0056] In a further embodiment, Figure 7As shown, a second drive assembly 400 is connected between the lamp tube rack 220 and the intermediate support 210. The second drive assembly 400 is used to drive the lamp tube rack 220 to move relative to the intermediate support 210 along its length direction. The second drive assembly 400 includes a second drive source 410, a first drive gear 420 and a first rack 430. The second drive source 410 is arranged on the intermediate support 210, and the first drive gear 420 is fixedly connected to the output shaft of the second drive source 410. The first rack 430 is arranged on the side of the lamp tube rack 220, and the first rack 430 extends along the length direction of the lamp tube rack 220. The first rack 430 and the first drive gear 420 are engaged with each other.

[0057] When the lamp tube rack 220 needs to move along its length relative to the middle support 210, the staff starts the second driving source 410, which is specifically a motor. At this time, the first driving gear 420 is driven to rotate by the second driving source 410, and the first driving gear 420 drives the first rack 430 to move along its length through gear engagement. Since the first rack 430 is set on the side of the lamp tube rack 220, the first rack 430 drives the lamp tube rack 220 to move synchronously, so that the lamp tube rack 220 moves along its length relative to the middle support 210.

[0058] It should be noted that when there are two lamp tube racks 220, there are also two corresponding second drive assemblies 400. The two second drive assemblies 400 are correspondingly connected to the two lamp tube racks 220 so that the corresponding lamp tube racks 220 can be driven closer to or away from each other by the two second drive assemblies 400.

[0059] In a further embodiment, Figure 8 As shown, a third driving assembly 500 is provided between the lamp tube holder 220 and the intermediate support 210. The third driving assembly 500 is used to drive the lamp tube holder 220 to swing back and forth around the axis of the ultraviolet lamp tube 230 within a preset angle range when the lamp tube holder 220 moves relative to the intermediate support 210 along its length direction.

[0060] It can be understood that when the lamp tube rack 220 moves relative to the intermediate support 210 along its length direction, the third driving assembly 500 drives the lamp tube rack 220 to swing back and forth within a preset range around the axis of the ultraviolet lamp 230, in order to further increase the irradiation range of the ultraviolet lamp 200, so as to improve the sterilization effect of ultraviolet rays on the air.

[0061] In a further embodiment, Figure 8 、 Figure 9 and Figure 12As shown, the third driving assembly 500 includes a guide column 510 and a guide rail 520. The guide column 510 is arranged on the side of the lamp tube holder 220, and the guide column 510 is located on one side of the rack. The guide rail 520 is arranged on the side of the intermediate support 210, and the guide rail 520 extends along the length direction of the lamp tube holder 220. The guide rail 520 is provided with a guide groove 521 on one side of the guide column. The guide groove 521 is a wavy line shape, and the guide column 510 is slidably connected in the guide groove 521.

[0062] It should be added that, if Figure 7 and Figure 12 As shown, in order to enable the lamp tube holder 220 to swing around its axis while the first rack 430 and the first driving gear 420 can remain engaged, specifically, the first rack 430 has a fan-shaped tooth surface, and the first rack 430 is coaxial with the ultraviolet lamp tube 230. In order to adapt to the shape and movement trajectory of the first rack 430, a second limiting groove 522 is opened on the guide rail 520. The second limiting groove 522 is arc-shaped, and the arc length of the second limiting groove 522 is greater than the arc length of the fan-shaped surface of the first rack 430, and the first rack 430 is slidably connected in the second limiting groove 522.

[0063] When the lamp tube rack 220 moves along its length direction relative to the middle support 210, the guide column 510 moves along the guide groove 521. Since the guide groove 521 is wavy, the guide column 510 swings left and right under the guidance of the guide groove 521. Since the guide column 510 is arranged on the side of the lamp tube rack 220, the guide column 510 drives the lamp tube rack 220 to swing synchronously. In addition, since the first rack 430 is slidably connected in the second limiting groove 522, the lamp tube rack 220 swings back and forth around the axis of the ultraviolet lamp tube 230 within a preset range.

[0064] In a further embodiment, Figure 6 and Figure 7 As shown, a fourth driving assembly 600 is provided between the intermediate support 210 and the connecting seat 320 , and the fourth driving assembly 600 is used to drive the intermediate support 210 to move along its length direction.

[0065] It should be noted that the top of the base 100 is open, and a dust cover 110 is detachably installed at the opening position. In the initial state, the dust cover 110 is installed at the opening position at the top of the base 100, and the connecting seat 320 and the lamp tube holder 220 are both located inside the base 100.

[0066] During use, the staff first removes the dust cover 110 from the base 100. At this time, the connecting seat 320 and the upper part of the lamp tube holder 220 are exposed. Next, the staff starts the fourth drive assembly 600, and drives the intermediate support 210 to move upward along its length direction through the fourth drive assembly 600. When the lower end of the intermediate support 210 moves to a position where it is no longer interfered with by the base 100, the connecting seat 320 can be rotated around the axis of the second bevel gear 340. At this time, the connecting seat 320 can drive the intermediate support 210 to rotate synchronously.

[0067] It should also be noted that if Figure 6 and Figure 7 As shown, in order to enable relative sliding between the connecting seat 320 and the intermediate support 210, and when the connecting seat 320 rotates, the connecting seat 320 can drive the intermediate support 210 to rotate synchronously, specifically, a first limiting groove 211 is opened on the intermediate support 210, the first limiting groove 211 is a through groove, and the first limiting groove 211 extends along the length direction of the intermediate support 210, and a limiting block 321 is provided on the side of the connecting seat 320 facing the first limiting groove 211, the limiting block 321 is T-shaped, the short end part of the limiting block 321 is slidably connected in the first limiting groove 211, and the long end part of the limiting block 321 slides and abuts against the side of the intermediate support 210.

[0068] In a further embodiment, Figure 7 As shown, the fourth drive assembly 600 includes a third drive source 610, a second drive gear 620 and a second rack 630. The third drive source 610 is arranged on the connecting seat 320, the second drive gear 620 is fixedly connected to the output shaft of the third drive source 610, the second rack 630 is arranged on the intermediate support 210, and the second rack 630 extends along the length direction of the intermediate support 210, and the second rack 630 is engaged with the second drive gear 620.

[0069] When the intermediate support 210 needs to move along its length, the staff starts the third driving source 610, and the output shaft of the third driving source 610 drives the second driving gear 620 to rotate. The second driving gear 620 drives the second rack 630 to move along its length through gear meshing. Since the second rack 630 is set on the intermediate support 210, the intermediate support 210 follows the second rack 630 and moves synchronously along its length.

[0070] In a further embodiment, Figure 15 and Figure 16 As shown, when the two ultraviolet lamps 230 need to be moved away synchronously, in order to balance the force on the middle support 210, the limit block 321 should be moved to the middle position of the first limit groove 211. Figure 15As shown, the two ultraviolet lamps 230 are then moved away from each other synchronously until the two ultraviolet lamps reach the position shown in FIG. Figure 16 The state shown in FIG. 1 can enhance the stability of the entire device and prevent the device from tipping over.

[0071] In a further embodiment, a fan is provided at the bottom of the base 100, and the fan is used to dissipate heat and cool the ultraviolet lamp 230 when the ultraviolet lamp 200 is in the vertical irradiation mode, so as to avoid large heat loss when the ultraviolet lamp 230 is powered on for a long time.

[0072] In a further embodiment, Figure 12 As shown, a wire groove 530 is provided on the side of the guide rail 520, for the wire 120 connected to the ultraviolet lamp tube 230 to pass through the wire groove 530. This is to prevent the wire 120 from being arranged in a messy manner when the ultraviolet lamp tube 230 moves with the lamp tube rack 220, thereby affecting the sterilization effect of the ultraviolet lamp tube 230 on the disinfection area.

[0073] Working process: When in use, the staff first removes the dust cover 110 from the machine base 100, and then starts the third driving source 610 through remote control. The output shaft of the third driving source 610 drives the second driving gear 620 to rotate, and the second driving gear 620 drives the second rack 630 to move upward. When the intermediate support 210 moves upward to its lower end and is no longer interfered with by the machine base 100, the first driving source 310 can be started. The output shaft of the first driving source 310 drives the first bevel gear 330 to rotate, and the first bevel gear 330 drives the second bevel gear 340 to rotate, and the second bevel gear 340 drives the connecting seat 320 to rotate. The connecting seat 320 drives the intermediate support 210 to rotate synchronously through the limit block 321, so that the intermediate support 210 rotates from the vertical irradiation mode to the horizontal irradiation mode. After the intermediate support 210 rotates from the vertical irradiation mode to the horizontal irradiation mode, the second driving source 410 is started. The second driving source 410 drives the first driving gear 420 to rotate, and the first driving gear 420 drives the first rack 430 to move, so that the first rack 430 moves relative to the intermediate support 210 along its length direction, and the first rack 430 drives the lamp tube holder 220 to move synchronously. At the same time, under the guiding cooperation of the guide column 510 and the guide groove 521, the lamp tube holder 220 follows the movement of the intermediate support 210 while also swinging back and forth around the axis of the ultraviolet lamp tube 230 within a preset range to increase the irradiation range of the ultraviolet lamp tube 230 in the horizontal irradiation mode and improve the sterilization effect on the disinfection area. After a certain period of time after the lamp tube holder 220 rotates to the horizontal irradiation mode, the lamp tube holder 220 drives the ultraviolet lamp tube 230 to rotate in the opposite direction again to the vertical irradiation mode, and switches back and forth in this way. When the sterilization time reaches the set time, the lamp tube holder 220 drives the ultraviolet lamp tube 230 to return to the initial position.

[0074] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An air sterilization device, characterized in that: include: base; The ultraviolet lamp is rotatably mounted on the machine base, and has a horizontal irradiation mode and a vertical irradiation mode; The first drive assembly is connected between the ultraviolet lamp and the machine base, and is used to drive the ultraviolet lamp to switch between the horizontal irradiation mode and the vertical irradiation mode; the first drive assembly includes a first drive source, a connecting seat, a first bevel gear and a second bevel gear, the first drive source is arranged on the machine base, the connecting seat is rotatably arranged on the machine base, the ultraviolet lamp is arranged on the connecting seat, the ultraviolet lamp and the connecting seat can rotate synchronously, the first bevel gear is coaxially fixedly connected to the output shaft of the first drive source, the second bevel gear is arranged on the side of the connecting seat, the axis of the second bevel gear is perpendicular to the axis of the first bevel gear, and the second bevel gear is meshed with the first bevel gear; the ultraviolet lamp includes an intermediate support The intermediate support is connected to the connecting seat, the lamp tube holder is arranged on the intermediate support, and the lamp tube holder can move relative to the intermediate support along its length direction, the ultraviolet lamp tube is arranged on the lamp tube holder, and the axis of the ultraviolet lamp tube extends along the length direction of the lamp tube holder; a second driving assembly is connected between the lamp tube holder and the intermediate support, and the second driving assembly is used to drive the lamp tube holder to move relative to the intermediate support along its length direction; a third driving assembly is provided between the lamp tube holder and the intermediate support, and the third driving assembly is used to drive the lamp tube holder to swing back and forth around the axis of the ultraviolet lamp tube within a preset angle range when the lamp tube holder moves relative to the intermediate support along its length direction.

2. An air sterilization device according to claim 1, characterized in that: The ultraviolet lamp includes an intermediate support, a lamp tube rack and an ultraviolet lamp tube. The intermediate support is connected to the connecting seat. There are two lamp tube racks and two ultraviolet lamp tubes. The two lamp tube racks are spaced apart from each other and are arranged on the intermediate support. The two lamp tube racks can approach or move away synchronously along their length directions. The two ultraviolet lamp tubes are connected to the two lamp tube racks in a one-to-one correspondence, and the axes of the ultraviolet lamps extend along the length directions of the lamp tube racks connected thereto.

3. An air sterilization device according to claim 2, characterized in that: The second drive assembly includes a second drive source, a first drive gear and a first rack. The second drive source is arranged on the intermediate support. The first drive gear is fixedly connected to the output shaft of the second drive source. The first rack is arranged on the side of the lamp tube holder and extends along the length direction of the lamp tube holder. The first rack and the first drive gear are engaged with each other.

4. The air sterilizing device according to claim 1, characterized in that: The third driving assembly includes a guide column and a guide rail. The guide column is arranged on the side of the lamp tube holder, and the guide rail is arranged on the side of the intermediate support. The guide rail extends along the length direction of the lamp tube holder. A guide groove is opened on one side of the guide rail toward the guide column. The guide groove is a wavy line shape, and the guide column is slidably connected in the guide groove.

5. The air sterilizing device according to claim 1, characterized in that: A fourth driving assembly is provided between the intermediate support and the connecting seat, and the fourth driving assembly is used to drive the intermediate support to move along its length direction.

6. An air sterilizing device according to claim 5, characterized in that: The fourth drive assembly includes a third drive source, a second drive gear and a second rack. The third drive source is arranged on a connecting seat. The second drive gear is fixedly connected to the output shaft of the third drive source. The second rack is arranged on an intermediate support and extends along the length direction of the intermediate support. The second rack is engaged with the second drive gear.

Images