Sterilizing and purifying system for clean rooms

Abstract

The present application relates to the field of clean room purification technology, and specifically discloses a sterilization and purification system for a clean room, comprising a walking unit, a position adjusting unit, a position setting unit and a sterilization unit. The walking unit moves smoothly on the double-layer track through the motor driving wheels, so as to realize the accurate positioning of the system on the top of the clean room. The position adjusting unit adopts bevel gear transmission and multi-link amplification mechanism to convert the rotary motion into stable vertical lifting motion. The position setting unit realizes the multi-degree-of-freedom attitude adjustment of the sterilization unit through the double-motor driving mechanism arranged orthogonally. The sterilization unit integrates the dual sterilization mode of dry mist hydrogen peroxide spraying and UV-C ultraviolet irradiation, so as to improve the sterilization efficiency and catalyze the decomposition of residues. At the same time, the centrifugal fan and the filter can actively suck and purify the residual pollutants, forming a complete closed-loop purification process. The present application realizes the contactless and residue-free sterilization operation, and effectively solves the dead angle problem and the secondary pollution risk existing in the traditional sterilization mode.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of clean room purification technology, in particular to a sterilization and purification system for clean room. BACKGROUND

[0002] A clean room refers to a space with good airtightness, in which air cleanliness, temperature, humidity, pressure, noise and other parameters are controlled according to needs. A biological laboratory or a hospital operating room not only needs the basic conditions of a clean room, but also needs to control microorganisms, i.e., a biological clean room has higher requirements than a general clean room.

[0003] At present, Chinese patent application No. CN201920834555.4 discloses a sterilization and purification system for clean room, which comprises a sterilization unit arranged in the clean room, a hoisting purification unit arranged on the top plate of the clean room, and a connecting air pipe connecting the sterilization unit and the hoisting purification unit. The system has the functions of killing microorganisms in the environment and purifying air.

[0004] However, the sterilization and purification system for clean room in the prior art is usually fixedly installed, and the effective range is limited. It is easy to be blocked by indoor equipment layout and generate sterilization dead angles. When a chemical fumigation method is used, the work site needs to be cleared, and there is a risk of residue, which may contaminate precision products. It is not convenient to achieve precise and safe sterilization under the uninterrupted production of the clean room. SUMMARY

[0005] The present application aims to provide a sterilization and purification system for clean room to solve the problems raised in the background.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a sterilization and purification system for clean room, comprising a walking unit, a positioning unit, a positioning unit, a positioning seat and a sterilization unit, the walking unit is installed below the positioning unit, the positioning unit is fixedly connected with the positioning unit at the bottom, the positioning unit is tightly fixed with the positioning seat at the bottom, and the positioning seat is fixedly connected with the sterilization unit at the bottom, the walking unit comprises an outer runway ring, the first supporting frame and the second supporting frame are fixedly connected on the left and right sides of the outer runway ring, and the first supporting frame and the second supporting frame are used for locking and fixing on the inner top side of the clean room, the first supporting frame and the second supporting frame are longitudinally arranged with upper and lower runway rings of the same structure and size on the inner side, the upper runway ring is located above the lower runway ring, and the upper runway ring is connected with a driving structure on the outer side, the lower runway ring and the outer runway ring are located on the same horizontal plane, and the driving structure penetrates and slides between the lower runway ring and the outer runway ring, and the driving structure is tightly fixed with the positioning unit at the bottom.

[0007] Preferably, the driving structure comprises a rectangular cover, a first motor is locked and fixed in the middle of the top of the rectangular cover, and the output shaft of the bottom of the first motor is inserted into the middle of the inside of the rectangular cover and connected with a driving gear, the driving gear is meshed with a first driven gear and a second driven gear on the left and right sides respectively, the first driven gear is rotatably penetrated into the bottom side of the rectangular cover at the bottom rotating shaft and connected with a first driving wheel, the second driven gear is rotatably penetrated into the bottom side of the rectangular cover at the bottom rotating shaft and connected with a second driving wheel, the rear sides of the first driving wheel and the second driving wheel are in contact with the upper runway ring, and the bottoms are connected with a rectangular spacer, the top middle side of the rectangular spacer is fixed with the rectangular cover, and the vertical rod at the bottom middle side is rotatably arranged in the middle of the supporting wheel, the front and rear sides of the supporting wheel are in contact with the outer runway ring and the lower runway ring respectively, the bottom end of the vertical rod is fixed with a rectangular plate, and the bottom of the rectangular plate is fastened with the positioning unit.

[0008] Preferably, the first driven gear and the second driven gear are the same in structure and size, and the top middle sides thereof are rotatably connected with the rectangular cover.

[0009] Preferably, the positioning unit comprises a carrier fixed with the walking unit at the top, a supporting block is fixedly connected to the right lower side of the inside of the carrier, a second motor is locked and fixed to the right side of the supporting block, a first bevel gear is connected with the left side output end of the second motor, the first bevel gear is rotatably penetrated into the middle of the inside of the supporting block, the bottom left side of the first bevel gear is meshed with a second bevel gear, and the inside middle side of the second bevel gear is rotatably penetrated and fixed with a threaded sleeve, the threaded sleeve is threadedly connected with a screw rod, the bottom end of the screw rod is connected with a folding structure, the top four sides of the folding structure are rotatably connected with the carrier, and the bottom of the folding structure is fixed with the positioning unit.

[0010] Preferably, the folding structure comprises a push plate connected with the bottom end of the screw rod, an X-shaped rotating rod rotatably connected with the middle of the side edge of the push plate, two first rotating rods rotatably connected with the top two sides of the X-shaped rotating rod respectively, two second rotating rods rotatably connected with the bottom two sides of the X-shaped rotating rod respectively, and a bottom plate rotatably connected with the bottoms of the two second rotating rods, the top of the two first rotating rods is rotatably connected with the carrier, and the bottom of the bottom plate is fixed with the positioning unit.

[0011] Preferably, the X-shaped rotating rod, the two first rotating rods and the two second rotating rods are provided with four groups, and the four groups are arranged on the four sides of the push plate respectively.

[0012] Preferably, the positioning unit comprises a bearing frame fixed to the top plate and the bottom plate, a third motor is fixedly connected to the right bottom of the bearing frame, a U-shaped rod is connected to the left output shaft of the third motor, a column block is rotatably connected to the inner side of the U-shaped rod away from the third motor, a first inclined rod is rotatably connected to the left middle of the column block, a second inclined rod is rotatably connected to the top of the first inclined rod, the second inclined rod penetrates through the rear side of the bearing frame, a fourth motor is connected to the rear end of the second inclined rod, and the fourth motor is fixedly connected to the bottom rear side of the bearing frame.

[0013] Preferably, the axis of the U-shaped rod and the column block connection and the axis of the first inclined rod and the column block connection are located on the same horizontal plane, and the two axes are perpendicular.

[0014] Preferably, the sterilization unit comprises a housing fixed to the middle side of the top, a partition is embedded in the middle side of the housing, a hydrogen peroxide tank is embedded in the partition, a feeding port is formed in the upper left rear of the hydrogen peroxide tank, a micro air pump is connected to the discharge port of the hydrogen peroxide tank, an ultraviolet sterilization module is installed at the bottom of the partition, the ultraviolet sterilization module is rectangular and located outside the dry mist nozzle, a rectangular inner frame is fixedly connected between the partition and the inner wall of the housing, filters are embedded in the two short sides of the rectangular inner frame, a flow guide cover is installed on the top of each filter, the top of the flow guide cover is connected to the air inlet of a centrifugal fan, and the two centrifugal fans are fixed to the left and right sides of the housing, respectively, and the air outlet of the rear side of the centrifugal fan penetrates through the rear of the housing.

[0015] Preferably, the ultraviolet sterilization module is a UV-C LED array, and the filter is a high-efficiency particulate air filter or a chemical filter.

[0016] Compared with the prior art, the beneficial effects of the present application are:

[0017] The present application realizes the full-range accurate positioning and attitude adjustment of the sterilization unit in three-dimensional space through the cooperation of the walking unit, the positioning unit and the positioning unit. The walking unit enables the system to reach the upper side of the multiple area positions in the clean room along the preset track. The positioning unit realizes stable vertical positioning of large stroke through the multi-link lifting mechanism. The positioning unit adjusts two orthogonal degrees of freedom, so that the sterilization unit can accurately align complex surfaces and hidden corners. The multi-degree-of-freedom positioning capability solves the problem of sterilization blind area of the traditional fixed sterilization system, and significantly improves the comprehensiveness and reliability of sterilization coverage.

[0018] The present application adopts a multi-modal cooperative operation mode of dry fog chemical sterilization combined with ultraviolet radiation sterilization, and integrates a filter system of negative pressure recovery, forming a complete closed-loop purification process, which not only greatly improves the sterilization efficiency through the synergistic effect of chemical and physical methods, but more importantly, can actively suck and filter the residual sterilizing agent and airborne pollutants, effectively prevent the secondary pollution of the clean room environment and products caused by chemical residues, at the same time, ensure the safety of the operating personnel, and realize the truly safe and non-toxic operation.

[0019] The modular layout of each functional unit of the present application, the stable and reliable motion mechanism, the double-layer track and symmetric driving design of the walking unit ensure the stability and precision of long-distance movement; the multi-linkage amplification mechanism is adopted in the positioning unit to realize stable lifting function with compact structure; all executing components are driven by motors to realize complete automatic control, which not only improves the reliability and service life of the system, but also reduces the need for manual intervention, reduces the operation and maintenance cost, and meets the strict requirements of clean environment on high reliability and automatic operation of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present application;

[0021] Figure 2 It is a structural schematic diagram of the walking unit of the present application;

[0022] Figure 3 It is a structural schematic diagram of the inside of the rectangular cover of the present application;

[0023] Figure 4 It is a structural schematic diagram of the positioning unit of the present application;

[0024] Figure 5 It is a front view of the connection of the positioning unit and the positioning unit of the present application;

[0025] Figure 6 It is a structural schematic diagram of the connection of the first inclined rod and the second inclined rod of the present application;

[0026] Figure 7 It is a structural schematic diagram of the sterilization unit of the present application.

[0027] In the figure: walking unit-1, position adjusting unit-2, positioning unit-3, positioning socket-4, sterilization unit-5, outer runway ring-11, first supporting frame-12, second supporting frame-13, upper runway ring-14, lower runway ring-15, displacement structure-16, rectangular cover-161, first motor-162, driving gear-163, first driven gear-164, second driven gear-165, first driving wheel-166, second driving wheel-167, supporting wheel-168, rectangular plate-169, carrier-21, supporting block-22, second motor-23, first bevel gear-24, second bevel gear-25, inner threaded sleeve-26, screw-27, folding structure-28, push plate-281, X-shaped rotating rod-282, first rotating rod-283, second rotating rod-284, bottom plate-285, bearing frame-31, third motor-32, U-shaped rod-33, column block-34, first inclined rod-35, second inclined rod-36, warehouse cover-51, partition-52, hydrogen peroxide warehouse-53, filling port-54, micro air pump-55, dry mist nozzle-56, ultraviolet sterilization module-57, rectangular inner frame-58, filter-59, flow guide cover-510, centrifugal fan-511. DETAILED DESCRIPTION

[0028] In order to further explain the technical scheme of the present application, the following specific embodiments are described in detail.

[0029] Please refer to Figure 1 , the present application provides a sterilization and purification system for clean room, comprising walking unit 1, position adjusting unit 2, positioning unit 3, positioning socket 4 and sterilization unit 5, position adjusting unit 2 is carried and positioned by walking unit 1, position adjusting unit 2 is fixedly connected with positioning unit 3 at the bottom, so that the lifting movement of position adjusting unit 2 is transmitted to positioning unit 3, positioning unit 3 is fastened with positioning socket 4 at the bottom, and positioning socket 4 is fixedly connected with sterilization unit 5 at the bottom, through the posture adjustment action of positioning unit 3, the accurate transmission to the end sterilization unit 5 is realized, and the multidirectional adjustment function of sterilization unit 5 is realized.

[0030] Please refer to Figure 1 , Figure 2 and Figure 3 , the present application provides a sterilization and purification system for clean room, walking unit 1 comprises outer runway ring 11, outer runway ring 11 is fixedly connected with first supporting frame 12 and second supporting frame 13 on the left and right sides respectively, and first supporting frame 12 and second supporting frame 13 are used for locking and fixing on the top side inside the clean room, first supporting frame 12 and second supporting frame 13 are arranged with upper runway ring 14 and lower runway ring 15 of the same structure and size on the inner side in the longitudinal direction, and the track frame is firmly fixed in the clean room through first supporting frame 12 and second supporting frame 13, so as to ensure the stability and reliability of the whole moving system.

[0031] The upper runway ring 14 is located above the lower runway ring 15, the outer side of the upper runway ring 14 is connected with the driving structure 16, the lower runway ring 15 and the outer runway ring 11 are located at the same horizontal plane, and the driving structure 16 penetrates and slides between the lower runway ring 15 and the outer runway ring 11, the lower runway ring 15 and the outer runway ring 11 jointly construct a complete and flat supporting track plane, so as to ensure that the driving structure 16 can smoothly pass through the track plane, the bottom of the driving structure 16 is fastened with the positioning unit 2, a double-layer track structure is formed through the upper runway ring 14 and the lower runway ring 15, and driving force is applied to the upper runway ring 14, so as to drive the whole device through friction, thereby driving the positioning unit 2 and the unit components below the positioning unit 2 to move along the track and change the position.

[0032] The driving structure 16 comprises a rectangular cover 161, a first motor 162 for providing power required for walking is locked and fixed at the top middle side of the rectangular cover 161, the bottom output shaft of the first motor 162 is inserted into the middle side of the interior of the rectangular cover 161 and connected with a driving gear 163, the driving gear 163 is meshed with a first driven gear 164 and a second driven gear 165 on the left and right sides respectively, the first driven gear 164 and the second driven gear 165 are the same in structure and size, and the top middle sides of the first driven gear 164 and the second driven gear 165 are rotationally connected with the rectangular cover 161, so as to enable the two driven gears to stably rotate and ensure the balance of transmission and the straightness of movement through the symmetrical design, the bottom rotating shaft of the first driven gear 164 penetrates and rotates at the bottom side of the rectangular cover 161 and is connected with a first driving wheel 166, the bottom rotating shaft of the second driven gear 165 penetrates and rotates at the bottom side of the rectangular cover 161 and is connected with a second driving wheel 167, and the single power source is synchronously and symmetrically distributed to the left and right sides through the rotation of the driving gear 163 driven by the first motor 162, so as to ensure that the rotation speeds of the driving wheels on the left and right sides are consistent.

[0033] The rear sides of the first driving wheel 166 and the second driving wheel 167 are in contact with the upper runway ring 14 and the bottoms are connected with a rectangular partition, friction is generated through the pressing contact of the two driving wheels with the upper runway ring 14, the top middle side of the rectangular partition is fixed with the rectangular cover 161, the vertical rod at the bottom middle side of the rectangular partition is arranged in the middle part of a supporting wheel 168, the vertical rod connects the upper structure with the supporting wheel 168 below, and transmits the overall weight to the supporting wheel 168, the front and rear sides of the supporting wheel 168 are in contact with the outer runway ring 11 and the lower runway ring 15 respectively, so that the supporting wheel 168 is constrained in the groove formed by the double tracks, plays a supporting and guiding role, prevents the device from overturning, and bears the main weight, the bottom end of the vertical rod is fixed with a rectangular plate 169, the bottom of the rectangular plate 169 is fastened with the positioning unit 2, and finally the driving structure 16 is rigidly connected with the positioning unit 2, so as to complete the transmission of power and support.

[0034] Please refer to Figure 1 , Figure 4 , Figure 5 andFigure 6 The application provides a clean room sterilization and purification system, and a positioning unit 2 comprises a carrier 21 fixed to the top of a walking unit 1 to bear the weight of the whole unit, a supporting block 22 is fixedly connected to the right lower side in the carrier 21, a second motor 23 is locked and fixed to the right side of the supporting block 22, a first bevel gear 24 is connected to the left side output end of the second motor 23, the first bevel gear 24 penetrates and rotates in the middle side in the supporting block 22, the bottom left side of the first bevel gear 24 is engaged with a second bevel gear 25, and a threaded sleeve 26 penetrates and is fixed in the middle side in the second bevel gear 25, the threaded sleeve 26 is screw-connected with a screw rod 27 in the inside, the bottom end of the screw rod 27 is connected with a folding structure 28, the rotation of the threaded sleeve 26 is converted into the linear lifting movement of the screw rod 27 through the threaded pair, and the linear thrust is transmitted to the folding structure 28, the top four sides of the folding structure 28 are rotationally connected with the carrier 21, the bottom of the folding structure 28 is fixed with a positioning unit 3, the upper end of the folding structure 28 is hinged to the carrier 21, and the lower end pushes the positioning unit 3 to move, so that the vertical lifting function is realized, and the stability during lifting is ensured.

[0035] The folding structure 28 comprises a push plate 281 connected to the bottom end of the screw rod 27, an X-shaped rotating rod 282 rotationally connected to the middle of the side edge of the push plate 281, two first rotating rods 283 rotationally connected to the top two sides of the X-shaped rotating rod 282 respectively, two second rotating rods 284 rotationally connected to the bottom two sides of the X-shaped rotating rod 282 respectively and a bottom plate 285 rotationally connected to the bottom of the two second rotating rods 284, the multi-link hinged structure is adopted, the small vertical displacement of the screw rod 27 is amplified to the larger lifting stroke of the bottom plate 285, the structure is compact, and the operation is stable.

[0036] The top of the two first rotating rods 283 is rotationally connected with the carrier 21, the bottom of the bottom plate 285 is fixed with the positioning unit 3, the fixed point and the power output point of the structure are determined, so that the movement transmission from the push plate 281 to the bottom plate 285 is completed, the X-shaped rotating rod 282, the two first rotating rods 283 and the two second rotating rods 284 are provided with four groups, and the four groups are arranged on the four sides of the push plate 281, the four groups of symmetrically arranged connecting rods greatly improve the stability and carrying capacity during lifting, and prevent the bottom plate 285 from tilting or being stuck during lifting.

[0037] The positioning unit 3 comprises a bearing frame 31 fixed to the top plate 285, a third motor 32 fixedly locked to the bottom of the right side of the bearing frame 31, a U-shaped rod 33 connected to the left side output shaft of the third motor 32, a column block 34 rotatably connected to the inside of the U-shaped rod 33 away from the third motor 32, a new rotation axis formed on the U-shaped rod 33 to provide the possibility of the next degree of freedom, a first inclined rod 35 rotatably connected to the left side middle part of the column block 34, a second inclined rod 36 rotatably connected to the top of the first inclined rod 35, the second inclined rod 36 penetratingly rotatably connected to the rear side of the bearing frame 31, and a fourth motor connected to the rear end of the second inclined rod 36 and fixedly locked to the rear bottom side of the bearing frame 31, wherein the third motor 32 drives the U-shaped rod 33 to rotate to drive the column block 34 to complete the pitch adjustment function in the front-rear direction, and the first inclined rod 35 and the second inclined rod 36 drive the column block 34 to complete the pitch adjustment function in the left-right direction under the action of the fourth motor.

[0038] The axis at the connection between the U-shaped rod 33 and the column block 34 and the axis at the connection between the first inclined rod 35 and the column block 34 are located on the same horizontal plane, and the two axes are perpendicular to each other, and the bottom of the column block 34 is fastened to the positioning seat 4, and the orthogonal axis design realizes the decoupling of the two rotation degrees of freedom, so as to transmit the finally adjusted posture to the positioning seat 4 and the sterilization unit 5, and ensure that the sterilization unit 5 can be accurately positioned.

[0039] Please refer to Figure 1 and Figure 7 The application provides a sterilization and purification system for a clean room, and the sterilization unit 5 comprises a warehouse cover 51 fixed to the top middle side of the positioning seat 4, a partition 52 embedded in the inside middle side of the warehouse cover 51, a hydrogen peroxide warehouse 53 embedded in the inside of the partition 52, a feeding port 54 formed in the upper left rear part of the hydrogen peroxide warehouse 53, so as to supplement the liquid hydrogen peroxide solution in the inside of the hydrogen peroxide warehouse 53 through the feeding port 54, and a micro air pump 55 connected to a dry mist nozzle 56 through the discharge port of the bottom of the hydrogen peroxide warehouse 53, wherein the micro air pump 55 provides power to deliver the hydrogen peroxide solution to the dry mist nozzle 56 and atomize it into micron-level dry mist to realize chemical sterilization.

[0040] The bottom of the partition 52 is provided with an ultraviolet sterilization module 57, and the ultraviolet sterilization module 57 is rectangular and located outside the dry mist nozzle 56. The ultraviolet sterilization module 57 is arranged around the dry mist nozzle 56 so as to immediately irradiate the sprayed dry mist and the surface to be sterilized, realize the synergistic sterilization of ultraviolet and chemical agents, improve the efficiency and catalyze the decomposition of residues. The partition 52 is fixedly connected with a rectangular inner shelf 58 between the inner wall of the warehouse cover 51, forming a return air duct, providing structural support and air flow channel for negative pressure recovery. The two sides of the short side of the rectangular inner shelf 58 are embedded with filters 59, and the top side of the two filters 59 is provided with a flow guide cover 510. The top of the flow guide cover 510 is connected with the suction side of the centrifugal fan 511. The two centrifugal fans 511 are respectively fastened to the left and right sides inside the warehouse cover 51, and the rear side of the centrifugal fan 511 is penetrated through the rear part of the warehouse cover 51. The centrifugal fan 511 actively sucks the undeposited residual dry mist and polluted air, so that the airflow is introduced into the filter 59 for filtration and adsorption of harmful microorganisms, chemical particles and other pollutants in the airflow, preventing secondary pollution, and directly discharging the filtered clean air back to the clean room environment, completing the complete closed loop of “generation-recovery-filtration-discharge”.

[0041] The ultraviolet sterilization module 57 is a UV-C LED array, which uses UV-C band LED, has the strongest damage to microbial DNA, and has the advantages of instant-on, long service life and high intensity. The filter 59 is a high-efficiency particulate air filter or a chemical filter. The high-efficiency particulate air filter is used for filtering particulate matter. The chemical filter is filled with activated carbon inside to adsorb chemical gas. According to the needs, the chemical filter is selected to ensure the absolute safety of the discharged air.

[0042] The working principle of the sterilization and purification system for clean room is as follows:

[0043] Firstly, the system realizes the movement and accurate positioning on the predetermined track at the top of the clean room through the walking unit 1: firstly, the first motor 162 drives the driving gear 163 to rotate, and then drives the two symmetrical first driven gears 164 and the second driven gears 165 to rotate synchronously, so that the first driving wheel 166 and the second driving wheel 167 connected therewith roll on the upper track ring 14, thereby generating a friction force to drive the whole device to move; the weight of the whole driving structure 16 is transmitted to the flat support track plane composed of the outer track ring 11 and the lower track ring 15 through the supporting wheel 168, so as to ensure the stability and smoothness during movement, and there is no risk of overturning. The walking unit 1 finally drives the positioning unit 2, the positioning unit 3 and the sterilization unit 5 below to move to the top of the target area, so as to prepare the position for the subsequent directional sterilization operation.

[0044] Second, when the system reaches the target position, the positioning unit 2 starts to work to realize the height adjustment of the sterilization unit 5: the second motor 23 starts, and through the meshing of the first bevel gear 24 and the second bevel gear 25, the power is converted into the rotation of the inner threaded sleeve 26, and the threaded rod 27 which is in threaded cooperation with the inner threaded sleeve 26 immediately generates a vertical linear motion, pushing the push plate 281 in the folding structure 28 downward, and the downward movement of the push plate 281 forces the four sets of symmetrically arranged X-shaped rotating rods 282, the first rotating rod 283 and the second rotating rod 284 to synchronously act, amplifying the small linear displacement of the threaded rod 27 to the larger lifting stroke of the bottom plate 285, and the linkage mechanism ensures the lifting process to be stable and strong in carrying capacity, and finally the bottom plate 285 drives the whole positioning unit 3 and the sterilization unit 5 to descend to the appropriate working height.

[0045] Third, on the basis of height positioning, the positioning unit 3 starts to accurately adjust the attitude of the sterilization unit 5 through two degrees of freedom: the third motor 32 drives the U-shaped rod 33 to rotate in the front-back direction, driving the column block 34 at the end and the sterilization unit 5 to swing and position in the front-back direction; at the same time, the fourth motor drives the second inclined rod 36 to swing, pulling or pushing the column block 34 through the first inclined rod 35, to realize the adjustment of the pitch angle of the sterilization unit 5 in the left-right direction; since the connection axis of the U-shaped rod 33 and the column block 34 and the connection axis of the first inclined rod 35 and the column block 34 are orthogonal to each other, the two degrees of freedom are independent and do not interfere with each other, so that the sterilization unit 5 can be quickly and accurately adjusted to the best working angle, directly facing the complex surface or dead angle that needs to be sterilized.

[0046] Fourth, after the position and attitude adjustment is completed, the sterilization unit 5 performs the final sterilization and purification operation: the miniature air pump 55 delivers the solution in the hydrogen peroxide tank 53 to the dry mist nozzle 56, generates and sprays micron-level hydrogen peroxide dry mist, and covers the target area for chemical sterilization, at the same time, the UV-C LED ultraviolet sterilization module 57 arranged around the nozzle starts to emit short-wave ultraviolet rays which can not only directly destroy the genetic material of microorganisms, but also can have a synergistic reaction with the hydrogen peroxide dry mist to catalyze the generation of hydroxyl radicals to greatly improve the sterilization efficiency and accelerate the decomposition of residual hydrogen peroxide; in this process, the centrifugal fan 511 located on both sides of the tank cover 51 continuously works to form a local negative pressure below the sterilization area, sucking the residual dry mist and contaminated air that may spread into the area, guiding them through the flow guide cover 510 and filtering them through the high-efficiency particulate air filter or chemical filter to adsorb all harmful microorganisms and chemical particles, and finally safely discharging the purified clean air back to the clean room environment, thereby completing a safe, efficient and residue-free closed-loop sterilization and purification cycle.

[0047] The above merely describes the preferred examples of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that modifications can be made to the foregoing embodiments, or some of the technical features thereof can be equivalently replaced, without departing from the spirit and principle of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sterilization and purification system for cleanrooms, characterized in that: Its structure includes a walking unit (1), a positioning unit (2) installed below the walking unit (1), a positioning unit (3) fixedly connected to the bottom of the positioning unit (2), a positioning seat (4) tightly attached to the bottom of the positioning unit (3), and a sterilization unit (5) fixedly connected to the bottom of the positioning seat (4). The walking unit (1) includes an outer raceway ring (11), and a first support frame (12) and a second support frame (13) are fixedly connected to the left and right sides of the outer raceway ring (11), respectively. The first support frame (12) and the second support frame (13) are used to lock and fix it in the clean room. On the inner top side, the first support frame (12) and the second support frame (13) have an upper runway ring (14) and a lower runway ring (15) of the same structure and size arranged longitudinally on the inner side. The upper runway ring (14) is located above the lower runway ring (15), and a drive structure (16) is connected to the outer side of the upper runway ring (14). The lower runway ring (15) and the outer runway ring (11) are located on the same horizontal plane, and the drive structure (16) slides through between the lower runway ring (15) and the outer runway ring (11). The bottom of the drive structure (16) is fastened to the adjustment unit (2). The adjustment unit (2) includes a base (21) that is fastened to the top of the walking unit (1). A support block (22) is fixedly connected to the lower right side inside the base (21). A second motor (23) is locked and fixed to the right side of the support block (22). The output end of the second motor (23) is connected to the first bevel gear (24). The first bevel gear (24) rotates through the middle side inside the support block (22). The bottom left side of the first bevel gear (24) meshes with the second bevel gear (25). An internal thread sleeve (26) is fixed through the middle side inside the second bevel gear (25). A screw (27) is threaded inside the internal thread sleeve (26). The bottom end of the screw (27) is connected to the folding structure (28). The top four sides of the folding structure (28) are rotatably connected to the base (21). The bottom of the folding structure (28) is fixed to the positioning unit (3). The folding structure (28) includes a push plate (281) connected to the bottom end of the screw (27), an X-shaped rotating rod (282) rotatably connected to the middle of the side of the push plate (281), two first rotating rods (283) rotatably connected to the top two sides of the X-shaped rotating rod (282), two second rotating rods (284) rotatably connected to the bottom two sides of the X-shaped rotating rod (282), and a base plate (285) rotatably connected to the bottom of the two second rotating rods (284). The tops of the two first rotating rods (283) are rotatably connected to the carrier (21), and the bottom of the base plate (285) is fixed to the positioning unit (3). The positioning unit (3) includes a support frame (31) whose top is fixed to the base plate (285). A third motor (32) is locked and fixed to the bottom right side of the support frame (31). The output shaft of the third motor (32) on the left side is connected to a U-shaped rod (33). A column block (34) is rotatably connected to the side of the U-shaped rod (33) away from the third motor (32). A first inclined rod (35) is rotatably connected to the middle left side of the column block (34). A second inclined rod (36) is rotatably connected to the top of the first inclined rod (35). The rear part of the second inclined rod (36) passes through and rotates to the rear side of the support frame (31). A fourth motor is connected to the rear end of the second inclined rod (36). The fourth motor is locked and fixed to the bottom rear side of the support frame (31). The bottom of the column block (34) is fastened to the positioning seat (4).

2. The sterilization and purification system for cleanrooms according to claim 1, characterized in that: The driving structure (16) includes a rectangular cover (161). A first motor (162) is locked and fixed to the top center of the rectangular cover (161). The bottom output shaft of the first motor (162) is inserted into the center of the rectangular cover (161) and connected to the driving gear (163). The driving gear (163) has a first driven gear (164) and a second driven gear (165) meshing on its left and right sides, respectively. The bottom shaft of the first driven gear (164) passes through and rotates on the bottom side of the rectangular cover (161) and is connected to the first drive wheel (166). The bottom shaft of the second driven gear (165) passes through... The first drive wheel (166) rotates around the bottom side of the rectangular cover (161) and is connected to the second drive wheel (167). The rear sides of the first drive wheel (166) and the second drive wheel (167) are in contact with the upper runway ring (14) and the bottom is connected to a rectangular partition. The top middle side of the rectangular partition is fixed to the rectangular cover (161), and the upright on the bottom middle side is inserted through the middle of the support wheel (168). The front and rear sides of the support wheel (168) are in contact with the outer runway ring (11) and the lower runway ring (15) respectively. The bottom end of the upright is fixed to the rectangular plate (169), and the bottom of the rectangular plate (169) is fastened to the adjustment unit (2).

3. The sterilization and purification system for cleanrooms according to claim 2, characterized in that: The first driven gear (164) and the second driven gear (165) have the same structure and size, and their top middle sides are rotatably connected to the rectangular cover (161).

4. The sterilization and purification system for cleanrooms according to claim 1, characterized in that: The X-shaped rotating rod (282), the two first rotating rods (283) and the two second rotating rods (284) are each provided in four sets, and the four sets are respectively provided on the four sides of the push plate (281).

5. The sterilization and purification system for cleanrooms according to claim 1, characterized in that: The axis at the connection between the U-shaped rod (33) and the column block (34) is on the same horizontal plane as the axis at the connection between the first diagonal rod (35) and the column block (34), and the two axes intersect perpendicularly.

6. The sterilization and purification system for cleanrooms according to claim 1, characterized in that: The sterilization unit (5) includes a chamber cover (51) fixed to the positioning base (4) on the top center side. A partition (52) is embedded in the center side of the chamber cover (51). A hydrogen peroxide chamber (53) is embedded inside the partition (52). A feeding port (54) is opened at the upper left rear part of the hydrogen peroxide chamber (53). The discharge port at the bottom of the hydrogen peroxide chamber (53) is connected to the dry fog nozzle (56) through a micro air pump (55). An ultraviolet sterilization module (57) is installed at the bottom of the partition (52). The ultraviolet sterilization module (57) is rectangular and located at the dry fog nozzle. Outside the mouth (56), a rectangular inner frame (58) is fixedly connected between the partition (52) and the inner wall of the hood (51). Filters (59) are embedded in the short sides of both sides of the rectangular inner frame (58). A guide hood (510) is installed on the top side of both filters (59). The top of the guide hood (510) is connected to the air intake of the centrifugal fan (511). The two centrifugal fans (511) are respectively fastened to the left and right sides inside the hood (51), and the air outlet of the centrifugal fan (511) is installed through the rear of the hood (51).

7. The sterilization and purification system for cleanrooms according to claim 6, characterized in that: The ultraviolet sterilization module (57) is a UV-C LED array, and the filter (59) is a high-efficiency particulate air filter or a chemical filter.

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