A clean operating room air purification system

Abstract

The present invention relates to the technical field of air purification devices, and specifically to an air purification system for a clean operating room, including an air supply duct, a circulation filter mechanism and two return air ducts, wherein the circulation filter mechanism is connected to the air supply duct and the two return air ducts, the two return air ducts are used to recycle the air in the room, the air supply duct is used to supply filtered air into the room, the circulation filter mechanism is used to filter the air, and the circulation filter mechanism includes a shell. In the present invention, by setting a filter element assembly, the filter element assembly is driven to rotate regularly by an intermittent rotating assembly, so that the filter module switches between multiple docking positions, thereby realizing "backwashing" of the filter module, realizing self-cleaning of the filter module, avoiding long-term accumulation of dust on the filter module to cause blockage, thereby affecting the air supply to the room and the filtering and purification effect of the air, facilitating stable filtering of the air, and improving the filtering effect.

Description

Technical Field

[0001] The invention relates to the technical field of air purification devices, in particular to an air purification system for a clean operating room. Background Art

[0002] The operating room is an important place for hospitals to perform surgical treatment on patients. The quality of surgery often reflects the treatment level of a hospital. The important guarantee for the success of surgery is to establish a strict aseptic concept, attach importance to aseptic technical operations during surgery, and prevent surgical infection. The main source of pollution from the outside is the fresh air sent to the operating room. Therefore, an air purification system is required to filter and purify the fresh air before inputting it into the operating room. In general, the indoor air needs to be purified a few hours before the operation. The existing air purification device mainly uses a filter element to filter the air. After a period of use, dust accumulates on the filter element, which affects the filtering effect and the ventilation volume. The filter element needs to be replaced regularly or cleaned manually, which is troublesome. Summary of the invention

[0003] The object of the present invention is to provide an air purification system for a clean operating room to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A clean operating room air purification system, comprising an air supply pipeline, a circulation filtering mechanism and two return air pipelines, wherein the circulation filtering mechanism is connected to the air supply pipeline and the two return air pipelines, the two return air pipelines are used to recycle the air in the room, the air supply pipeline is used to supply filtered air into the room, and the circulation filtering mechanism is used to filter the air;

[0006] The circulation filtering mechanism includes a shell, a docking assembly is arranged in the shell, a circulation air duct, an output pipe and a fresh air duct are fixedly installed at one end of the shell, a filter element assembly is arranged above the docking assembly, the filter element assembly is rotatably connected to the shell, the circulation air duct and the fresh air duct supply air to the docking assembly, one end of the circulation air duct is connected with the return air duct, one end of the output pipe is connected with the air supply duct, the docking assembly includes four annularly arranged internal and external seats, a plurality of internal seats and a plurality of external seats correspond to each other one to one, and docking positions are arranged between the internal seats and the corresponding external seats, an intermittent rotating assembly is installed in the shell, the intermittent rotating assembly drives the filter element assembly to rotate, the filter element assembly includes four annularly distributed filter modules, the intermittent rotating assembly drives the filter element assembly to rotate, thereby driving the filter module to move between the four docking positions.

[0007] Furthermore, the four internal seats are sequentially internal seat one, internal seat two, internal seat three, and internal seat four; the four external seats are sequentially external seat one, external seat two, external seat three, and external seat four; the external seat three is connected to the circulating air duct; one end of the internal seat three is fixedly connected to an exhaust pipe; the fresh air duct is connected to the internal seat four; one end of the external seat four is fixedly connected to a connecting pipe; one end of the connecting pipe is connected to the internal seat one and the internal seat two; one end of the external seat one and the external seat two is connected to the other end of the output pipe.

[0008] Further, the filter element assembly further comprises:

[0009] Fixed frame: rotatably connected to the housing;

[0010] Frame: There are four frames, and the four frames are arranged in a ring with equal angles. The frames are fixedly connected to the fixing frame. An annular cavity is opened in the middle of the frame, and the annular cavity is used to fix the filter module. A reinforcement frame is fixedly connected between two adjacent frames.

[0011] Furthermore, the side walls of the inner seat and the corresponding outer seat at one end close to each other are both arc-shaped surfaces, the side walls of both sides of the frame are both arc-shaped surfaces, and the central axes of the arc-shaped surfaces on the plurality of inner seats, the outer seats and the frame coincide with each other.

[0012] Furthermore, a mixing box is fixedly connected to the inside of the outer shell, one end of the fresh air duct is fixedly connected to the mixing box, one end of the mixing box is fixedly connected to an air inlet duct, one end of the air inlet duct is fixedly connected to an internal connecting seat four, the other end of the circulating air duct is fixedly connected to branch pipe one and branch pipe two, one end of the branch pipe two is fixedly connected to one end of an external connecting seat three, and one end of the branch pipe one is fixedly connected to the mixing box.

[0013] Further, the intermittent rotation component comprises:

[0014] Axle rod three: one end is rotatably connected to the housing, and the other end of the axle rod three is fixedly sleeved to the fixing frame;

[0015] Driving motor: fixedly mounted on the inner top surface of the housing, the output end of the driving motor is fixedly connected to a driving plate, and the outer edge of one side wall of the driving plate is fixedly connected to a cylinder;

[0016] Limiting plate: fixedly sleeved on shaft rod three, one side wall of the limiting plate is provided with four limiting grooves equidistantly in an annular manner, the driving plate limits the limiting plate, and the cylinder drives the limiting plate to rotate by cooperating with the limiting grooves.

[0017] Furthermore, a knocking assembly is disposed on each of the external seat three and the external seat four, and the knocking assembly is used to vibrate the filter module in the adjacent position.

[0018] Further, the striking component comprises:

[0019] Axle rod 1: rotatably connected to the external seat at the corresponding position, the bottom end of the shaft rod 1 extends to the inside of the external seat, the bottom end of the shaft rod 1 is fixedly connected with a plurality of hemispherical leaves at equal angles, and the top end of the shaft rod 1 is fixedly sleeved with gear 1;

[0020] Shaft rod 2: The bottom end is rotatably connected to the outer side wall of the adjacent external seat, the top end of the shaft rod 2 is fixedly sleeved with gear 2, and gear 2 is meshingly transmitted with gear 1, and the top end of the shaft rod 2 is located above gear 2 and is fixedly sleeved with a knocking wheel, and the knocking wheel is used to contact the filter module.

[0021] Furthermore, the filter module includes a shell, the shell is fixed to the inner wall of the corresponding annular cavity, the inner wall of the shell is fixedly connected with a filter screen, the outer wall of the shell is fixedly connected with a fixed cylinder, the fixed cylinder and the frame are fixedly sleeved, the outer wall of the shell is fixedly connected with a vibration tube, the vibration tube is located on the inner side of the fixed cylinder and a gap is set between the fixed cylinder, and the fixed cylinder is used for contact between the knocking wheels.

[0022] Furthermore, an electric-controlled throttle valve is fixedly installed in the middle position of the branch pipe 2, and an air pump is connected and installed in the middle position of the circulating air duct, and the air pump is fixedly connected to the housing.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Through the setting of the filter element assembly, the intermittent rotating assembly drives the filter element assembly to rotate regularly, so that the filter module switches between multiple docking positions, thereby realizing the "backwashing" of the filter module, realizing the self-cleaning of the filter module, avoiding the long-term accumulation of dust on the filter module and causing blockage, thereby affecting the air supply to the room and the filtering and purification effect of the air, and at the same time reducing the frequency of replacement and inspection of the filter module, while facilitating the stable filtration of the air and improving the filtering effect;

[0025] 2. Through the setting of the knocking component, when the airflow passes through the bottom end of shaft one, the hemispherical blade is blown to drive shaft one to rotate, and shaft one drives the knocking wheel to rotate through shaft two, so that the knocking wheel continuously knocks the vibration tube in the adjacent position, and transmits the vibration to the shell through the vibration tube, thereby making the filter vibrate. By vibrating the filter and blowing the airflow, the cleaning effect of the filter module is improved. The intermittent rotation component drives the filter element component to rotate and switch, which can be performed when each cycle filter mechanism is just started. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure of the return air duct and the air supply duct in the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the circulating filtration mechanism in the present invention;

[0029] Figure 4 It is a schematic diagram of the top view of the internal structure of the housing in the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the gap rotating assembly in the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the filter element assembly in the present invention;

[0032] Figure 7 It is a schematic diagram of the docking assembly structure in the present invention;

[0033] Figure 8 It is a schematic diagram of the structure of the knocking component in the present invention.

[0034] In the figure: 100, circulation filtering mechanism; 110, circulation air duct; 111, air pump; 112, branch pipe 1; 113, branch pipe 2; 114, electric control throttle valve; 120, mixing box; 121, air inlet pipe; 130, fresh air pipe; 140, exhaust pipe; 150, output pipe; 160, docking assembly; 161, inner seat 1; 1611, docking position 1; 1612, docking position 2; 1613, docking position 3; 1614, docking position 4; 162, outer seat 1; 163, inner seat 2; 164, outer seat 2; 165, inner seat 3; 166, outer seat 3; 167, inner seat 4; 168, outer seat 4; 169, Connecting pipe; 170, knocking assembly; 171, shaft rod one; 172, gear one; 173, gear two; 174, shaft rod two; 175, hemispherical leaf; 176, knocking wheel; 180, filter element assembly; 181, fixing frame; 182, frame; 183, reinforcement frame; 184, annular cavity; 185, filter module; 1851, shell; 1852, filter screen; 1853, fixing cylinder; 1854, vibration tube; 190, intermittent rotation assembly; 191, driving motor; 192, limiting plate; 193, limiting groove; 194, shaft rod three; 195, driving plate; 196, cylinder; 200, return air duct; 300, air supply duct. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 7 In an embodiment of the present invention, a clean operating room air purification system includes an air supply duct 300, a circulation filter mechanism 100 and two return air ducts 200. The circulation filter mechanism 100 is connected to the air supply duct 300 and the two return air ducts 200. The two return air ducts 200 are used to recycle the air in the room. The air supply duct 300 is used to supply filtered air into the room. The circulation filter mechanism 100 is used to filter the air. The circulation filter mechanism 100 includes a shell, and a docking assembly 160 is arranged in the shell. A circulation air duct 110, an output pipe 150, and a fresh air duct 130 are fixedly installed at one end of the shell. A filter element assembly 180 is arranged above the docking assembly 160. The filter element assembly 180 rotates between the filter element assembly 180 and the shell. The circulating air duct 110 and the fresh air duct 130 supply air to the docking assembly 160. One end of the circulating air duct 110 is connected to the return air duct 200, and one end of the output pipe 150 is connected to the air supply duct 300. The docking assembly 160 includes four annularly arranged internal and external seats, and there is a one-to-one correspondence between the multiple internal seats and the multiple external seats, and docking positions are arranged between the internal seats and the corresponding external seats. An intermittent rotating assembly 190 is installed in the outer shell, and the intermittent rotating assembly 190 drives the filter element assembly 180 to rotate. The filter element assembly 180 includes four annularly distributed filter modules 185. The intermittent rotating assembly 190 drives the filter element assembly 180 to rotate, thereby driving the filter module 185 to move between the four docking positions.

[0037] Specifically, the intermittent rotating component 190 drives the filter element component 180 to rotate periodically, so that the filter module 185 switches between multiple docking positions, thereby realizing "backwashing" of the filter module 185 and self-cleaning of the filter module 185, avoiding long-term accumulation of dust on the filter module 185 and causing blockage, thereby affecting the air supply to the room and the filtering and purification effect of the air, and at the same time reducing the frequency of replacement and inspection of the filter module 185, while facilitating stable filtering of the air and improving the filtering effect.

[0038] Embodiment 1

[0039] like Figures 6-7As shown, in this embodiment, the four internal seats are sequentially an internal seat 161, an internal seat 2 163, an internal seat 3 165, and an internal seat 4 167, and the four external seats are sequentially an external seat 162, an external seat 2 164, an external seat 3 166, and an external seat 4 168. The external seat 3 166 is connected to the circulating air duct 110, one end of the internal seat 3 165 is fixedly connected to the exhaust pipe 140, the fresh air duct 130 is connected to the internal seat 4 167, and the external seat 168 is connected to the circulating air duct 110. One end of the seat four 168 is fixedly connected with a connecting pipe 169, one end of the connecting pipe 169 is connected with the inner seat one 161 and the inner seat two 163, one end of the outer seat one 162 and the outer seat two 164 is connected with the other end of the output pipe 150, the filter element assembly 180 also includes a fixing frame 181 and a frame 182, the fixing frame 181 is rotatably connected to the outer shell, the number of frames 182 is four, and the four frames 182 are arranged in a ring with equal angles, the frame 182 is fixedly connected to the fixing frame 181, an annular cavity 184 is opened in the middle position of the frame 182, the annular cavity 184 is used for fixing and installing the filter module 185, and a reinforcement frame 183 is fixedly connected between two adjacent frames 182, the side walls of the inner seat and the corresponding outer seat at one end close to each other are both arc-shaped surfaces, the side walls of both sides of the frame 182 are both arc-shaped surfaces, and the central axes of the arc-shaped surfaces on multiple inner seats, outer seats and frames 182 coincide, and a mixing The mixing box 120, one end of the fresh air duct 130 is fixedly connected to the mixing box 120, one end of the mixing box 120 is fixedly connected to the air inlet duct 121, one end of the air inlet duct 121 is fixedly connected to the internal seat four 167, the other end of the circulating air duct 110 is fixedly connected to the branch pipe one 112 and the branch pipe two 113, one end of the branch pipe two 113 is fixedly connected to one end of the external seat three 166, and one end of the branch pipe one 112 is fixedly connected to the mixing box 120.

[0040] In the present embodiment, for the convenience of clear description, four docking positions are arranged in a ring shape as docking position 1 1611, docking position 2 1612, docking position 3 1613, and docking position 4 1614, wherein indoor air enters the circulating air duct 110 through the return air duct 200, is introduced into the mixing box 120 through the branch pipe 1 12 through part of the circulating air, and is mixed with the new air introduced from the new air duct 130, and the mixed gas is guided by the air inlet pipe 121 from the outside to the inside through the docking position 4 1614, and then passes through the docking position 1 1611 and the docking position 2 1612 again. When the filter module 185 is located at the docking position 1 1611 and the docking position 2 1612, the airflow passes through the filter module 185 from the inside to the outside, and the filter module 185 filters the passing airflow, so that the dust is mainly gathered on the inner side of the filter module 185. When the filter module 185 moves to the docking position 3 1613, the circulating air enters the outside through the branch pipe 2 113. Connecting seat three 166, the airflow flows from the external connecting seat three 166 to the internal connecting seat three 165, so that the airflow passes through the filter module 185 from the outside to the inside, thereby "backwashing" the filter module 185 to blow off the dust accumulated on the inside of the filter module 185, and the airflow carries the dust and is discharged from the exhaust pipe 140. When the filter module 185 moves to the docking position four 1614, the airflow flows from the internal connecting seat four 167 to the external connecting seat four 168, so that the airflow passes through the filter module 185 from the inside to the outside, thereby cleaning the dust contaminated on the outside of the filter module 185 at the docking position three 1613, and the airflow carrying dust passes through the filter module 185 located at the docking position one 1611 and the docking position two 1612 for two times through the connecting pipe 169, thereby realizing self-cleaning of the filter module 185 through the airflow, reducing the continuous accumulation of dust on the filter module 185, thereby reducing the blockage of the filter module 185, and facilitating the continuous and stable supply of clean air to the room.

[0041] Embodiment 2

[0042] On the basis of the first embodiment, in order to improve the cleaning effect of the filter module 185.

[0043] like Figures 5 to 8As shown, in this embodiment, a knocking assembly 170 is provided on the external seat three 166 and the external seat four 168. The knocking assembly 170 is used to vibrate the filter module 185 at the adjacent position. The knocking assembly 170 includes a shaft rod 171 and a shaft rod 2 174. The shaft rod 171 is rotatably connected to the external seat at the corresponding position. The bottom end of the shaft rod 171 extends to the inside of the external seat. A plurality of hemispherical leaves 175 are fixedly connected to the bottom end of the shaft rod 171 at equal angles. The top end of the shaft rod 171 is fixedly sleeved with a gear 172; the shaft rod 2 174: the bottom end is rotatably connected to the outer side wall of the external seat at the adjacent position, the top end of the shaft rod 2 174 is fixedly sleeved with a gear 2 173, the gear 2 173 is meshed with the gear 172 for transmission, and the top end of the shaft rod 2 174 is located above the gear 2 173 and is fixedly sleeved A knocking wheel 176 is connected, and the knocking wheel 176 is used to contact the filter module 185. The filter module 185 includes a shell 1851, and the shell 1851 is fixedly installed on the inner wall of the corresponding annular cavity 184. The inner wall of the shell 1851 is fixedly connected with a filter screen 1852, and the outer wall of the shell 1851 is fixedly connected with a fixed cylinder 1853. The fixed cylinder 1853 and the frame 182 are fixedly sleeved. The outer wall of the shell 1851 is fixedly connected with a vibration tube 1854, and the vibration tube 1854 is located on the inner side of the fixed cylinder 1853 and a gap is set between the fixed cylinder 1853. The fixed cylinder 1853 is used for contact between the knocking wheel 176, and an electric-controlled throttle valve 114 is fixedly installed in the middle position of the branch pipe 113. The middle position of the circulating air duct 110 is connected and installed with an air pump 111, and the air pump 111 is fixedly connected to the outer shell. The intermittent rotation component 190 includes a driving motor 191, a limiting plate 192, and a shaft rod 194. One end of the shaft rod 194 is rotatably connected to the outer shell, and the other end of the shaft rod 194 is fixedly sleeved with the fixing frame 181. The driving motor 191 is fixedly installed on the inner top surface of the outer shell. The output end of the driving motor 191 is fixedly connected to a driving plate 195, and the outer edge of one side wall of the driving plate 195 is fixedly connected to a cylinder 196. The limiting plate 192 is fixedly sleeved on the shaft rod 194, and four limiting grooves 193 are equidistantly arranged in a ring on one side wall of the limiting plate 192. The driving plate 195 limits the limiting plate 192, and the cylinder 196 drives the limiting plate 192 to rotate by cooperating with the limiting groove 193.

[0044] During specific implementation, the driving motor 191 drives the driving plate 195 to rotate. When the driving plate 195 rotates, the limiting plate 192 is driven to rotate intermittently through the cylinder 196, so that the driving plate 195 rotates one circle, and the limiting plate 192 rotates ninety degrees. The limiting plate 192 drives the fixing frame 181 to rotate through the shaft rod three 194. Through the intermittent rotation method, when the filter element assembly 180 rotates, the filter module 185 stops when it moves to the corresponding docking position, which facilitates the alignment and limiting of the filter module 185 with the docking position. Through the setting of the knocking assembly 170, when the airflow passes through the bottom end of the shaft rod one 171, the shaft rod one 171 is driven to rotate by blowing the hemispherical leaf 175. The first shaft 171 drives the knocking wheel 176 to rotate through the second shaft 174, so that the knocking wheel 176 continuously knocks the vibration tube 1854 in the adjacent position, and transmits the vibration to the shell 1851 through the vibration tube 1854, so that the filter 1852 vibrates, and the setting of the fixed cylinder 1853 avoids direct contact between the vibration tube 1854 and the frame 182, which facilitates the transmission of the vibration of the vibration tube 1854, and improves the cleaning effect of the filter module 185 by vibrating the filter 1852 and blowing the airflow. The intermittent rotation component 190 drives the filter element component 180 to rotate and switch, which can be performed when each cycle filter mechanism 100 is just started.

[0045] In the present invention, in order to improve the control of the air entering the room, a temperature regulating device and a humidity regulating device can be installed between the circulation filtering mechanism 100 and the air supply pipe 300. The devices for regulating the temperature and humidity of the air are all existing technologies and will not be described in detail here.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A clean operating room air purification system, comprising an air supply duct (300), a circulation filtering mechanism (100) and two return air ducts (200), wherein the circulation filtering mechanism (100) is connected to the air supply duct (300) and the two return air ducts (200), the two return air ducts (200) are used to recycle indoor air, the air supply duct (300) is used to supply filtered air into the room, and the circulation filtering mechanism (100) is used to filter air; It is characterized in that The circulation filtering mechanism (100) comprises a shell, a docking assembly (160) is arranged in the shell, a circulation air duct (110), an output pipe (150), and a fresh air duct (130) are fixedly mounted on one end of the shell, a filter element assembly (180) is arranged above the docking assembly (160), the filter element assembly (180) is rotatably connected to the shell, the circulation air duct (110) and the fresh air duct (130) supply air to the docking assembly (160), one end of the circulation air duct (110) is connected to a return air duct (200), and one end of the output pipe (150) is connected to an air supply duct (200). (300), the docking assembly (160) comprises four annularly arranged internal seats and external seats, the multiple internal seats correspond to the multiple external seats one by one, and docking positions are arranged between the internal seats and the corresponding external seats, an intermittent rotating assembly (190) is installed in the housing, the intermittent rotating assembly (190) drives the filter element assembly (180) to rotate, the filter element assembly (180) comprises four annularly distributed filter modules (185), and the intermittent rotating assembly (190) drives the filter element assembly (180) to rotate, thereby driving the filter module (185) to move between the four docking positions.

2. A clean operating room air purification system according to claim 1, characterized in that: The four internal seats are, in sequence, an internal seat one (161), an internal seat two (163), an internal seat three (165), and an internal seat four (167); the four external seats are, in sequence, an external seat one (162), an external seat two (164), an external seat three (166), and an external seat four (168); the external seat three (166) is connected to the circulating air duct (110); one end of the internal seat three (165) is fixedly connected to an exhaust air duct (140); the fresh air duct (130) is connected to the internal seat four (167); one end of the external seat four (168) is fixedly connected to a connecting pipe (169); one end of the connecting pipe (169) is connected to the internal seat one (161) and the internal seat two (163); one end of the external seat one (162) and the external seat two (164) is connected to the other end of the output pipe (150).

3. A clean operating room air purification system according to claim 2, characterized in that: The filter element assembly (180) further includes: Fixed frame (181): rotatably connected to the housing; Frames (182): There are four frames (182) and the four frames (182) are arranged at equal angles in a ring. The frames (182) are fixedly connected to the fixing frame (181). An annular cavity (184) is provided in the middle of the frame (182). The annular cavity (184) is used to fix and install the filter module (185). A reinforcement frame (183) is fixedly connected between two adjacent frames (182).

4. A clean operating room air purification system according to claim 3, characterized in that: The side walls of the inner seat and the corresponding outer seat at one end close to each other are both arc-shaped surfaces, the side walls on both sides of the frame (182) are both arc-shaped surfaces, and the central axes of the arc-shaped surfaces on the plurality of inner seats, the outer seats and the frame (182) coincide.

5. A clean operating room air purification system according to claim 3, characterized in that: A mixing box (120) is fixedly connected to the inside of the shell, one end of the fresh air duct (130) is fixedly connected to the mixing box (120), one end of the mixing box (120) is fixedly connected to an air inlet duct (121), one end of the air inlet duct (121) is fixedly connected to an internal connection seat four (167), the other end of the circulating air duct (110) is fixedly connected to a branch pipe one (112) and a branch pipe two (113), one end of the branch pipe two (113) is fixedly connected to one end of an external connection seat three (166), and one end of the branch pipe one (112) is fixedly connected to the mixing box (120).

6. A clean operating room air purification system according to claim 5, characterized in that: The intermittent rotation assembly (190) comprises: Axle rod three (194): one end of the shaft rod three (194) is rotatably connected to the housing, and the other end of the shaft rod three (194) is fixedly sleeved to the fixing frame (181); A driving motor (191) is fixedly mounted on the inner top surface of the housing, the output end of the driving motor (191) is fixedly connected to a driving plate (195), and a cylinder (196) is fixedly connected to an outer edge of a side wall of the driving plate (195); The limiting plate (192) is fixedly sleeved on the shaft rod (194). A side wall of the limiting plate (192) is provided with four limiting grooves (193) at equal intervals in an annular shape. The driving plate (195) limits the limiting plate (192). The cylinder (196) drives the limiting plate (192) to rotate by cooperating with the limiting grooves (193).

7. A clean operating room air purification system according to claim 5, characterized in that: A knocking assembly (170) is disposed on each of the external seat three (166) and the external seat four (168), and the knocking assembly (170) is used to vibrate the filter module (185) in an adjacent position.

8. A clean operating room air purification system according to claim 7, characterized in that: The striking component (170) comprises: Axle rod one (171): rotatably connected to an external seat at a corresponding position, the bottom end of the shaft rod one (171) extends to the inside of the external seat, a plurality of hemispherical leaves (175) are fixedly connected to the bottom end of the shaft rod one (171) at equal angles, and a gear one (172) is fixedly sleeved on the top end of the shaft rod one (171); Axle rod 2 (174): The bottom end is rotatably connected to the outer side wall of the adjacent external seat, the top end of the shaft rod 2 (174) is fixedly sleeved with gear 2 (173), the gear 2 (173) and gear 1 (172) are meshed for transmission, the top end of the shaft rod 2 (174) is located above gear 2 (173) and is fixedly sleeved with a knocking wheel (176), the knocking wheel (176) is used to contact the filter module (185).

9. A clean operating room air purification system according to claim 8, characterized in that: The filter module (185) comprises a shell (1851), the shell (1851) being fixedly mounted on the inner wall of the corresponding annular cavity (184), the inner wall of the shell (1851) being fixedly connected to a filter screen (1852), the outer wall of the shell (1851) being fixedly connected to a fixed cylinder (1853), the fixed cylinder (1853) being fixedly sleeved with the frame (182), the outer wall of the shell (1851) being fixedly connected to a vibration tube (1854), the vibration tube (1854) being located on the inner side of the fixed cylinder (1853) and having a gap between the fixed cylinder (1853), and the fixed cylinder (1853) being used for contact between the knocking wheels (176).

10. The clean operating room air purification system according to claim 8, characterized in that: An electric-controlled throttle valve (114) is fixedly installed in the middle of the branch pipe 2 (113), and an air pump (111) is installed in the middle of the circulating air pipe (110), and the air pump (111) is fixedly connected to the housing.

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