Cleanness-adjustable purification air-conditioning system for operating room

Abstract

The utility model discloses a cleanliness-adjustable purification air-conditioning system for an operating room, which belongs to the technical field of air purification and comprises a fresh air handling unit and a circulating unit, and a filter unit is connected with an air outlet of the circulating unit through a pipeline; the filter unit comprises a filter box, a filter assembly is installed in the filter box, the filter assembly comprises a rotating block, a limiting ring used for limiting the filter assembly is installed at the upper end of an inner cavity of the filter box, the rotating block is movably installed in the limiting ring, and an air inlet hole is formed in the upper end of the limiting ring; a plurality of filter elements are mounted in the rotating block, a plurality of ventilation holes are formed in the upper end of the rotating block, and a sealing ring is mounted at the upper end of the rotating block; a motor I for driving the rotating block to rotate is mounted at the bottom of the filter box. According to the utility model, a new filter element can be quickly switched, the operation is simple, the replacement period is prolonged, and the labor cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of air purification technology and relates to a clean air conditioning system for operating rooms with adjustable cleanliness. Background Technology

[0002] Operating rooms have extremely high requirements for air quality and must be maintained in a sterile environment at all times. Even the slightest contamination can increase the risk of surgical infection, necessitating timely filter replacement to ensure optimal filtration. During surgery, the ventilation system typically needs to provide higher airflow to maintain a positive pressure environment, which also accelerates filter aging and clogging. Therefore, ensuring timely filter replacement is crucial for maintaining air quality in the operating room and protecting the health of patients and medical staff.

[0003] To ensure a safe operating environment, the filters in existing operating room air conditioning systems need to be removed and replaced before surgery. For example, the operating room air conditioning system disclosed in patent application number 201921469455.2 is difficult to replace with new filters quickly, is cumbersome, increases labor costs, and affects surgical scheduling. Summary of the Invention

[0004] To address the aforementioned issues, this invention provides an operating room air purification system with adjustable cleanliness, which allows for rapid replacement of filters, simplifies operation, extends the replacement cycle, and reduces labor costs.

[0005] The technical solution adopted by this utility model is a clean air conditioning system for operating rooms with adjustable cleanliness, including a fresh air unit and a circulation unit for purifying the air in the operating room. The operating room is equipped with a filter unit for filtering the fresh air, and the filter unit is connected to the air outlet of the circulation unit through a pipe.

[0006] The filtration unit includes a filter box, inside which a filter assembly for filtering fresh air is installed. The filter assembly includes a rotating block. A limiting ring for limiting the position of the filter assembly is installed at the upper end of the inner cavity of the filter box. The rotating block is movably installed inside the limiting ring. An air inlet is opened at the upper end of the limiting ring. Multiple filter elements are installed inside the rotating block. Multiple ventilation holes are machined at the upper end of the rotating block. A sealing ring is installed at the upper end of the rotating block. A motor for driving the rotating block to rotate is installed at the bottom of the filter box.

[0007] Furthermore, the bottom of the filter box is machined with a first ventilation slot, a second ventilation slot, a third ventilation slot, and a fourth ventilation slot for supplying fresh air;

[0008] The filter box is equipped with an elastic windproof cloth for opening and closing the first ventilation slot, the second ventilation slot, the third ventilation slot and the fourth ventilation slot.

[0009] The filter box is equipped with a limiting component for pulling the elastic windproof cloth.

[0010] Furthermore, the operating room is equipped with a circulation pipe for connecting to the circulation unit.

[0011] Furthermore, a connecting shaft is installed at the upper end of the motor.

[0012] Furthermore, the inner wall of the filter box is equipped with multiple limiting rails, and a limiting rod is installed inside the limiting rail. A limiting slider for limiting the elastic windproof cloth is sleeved on the rod body of the limiting rod, and a spring is sleeved on the lower end of the rod body of the limiting rod.

[0013] Furthermore, multiple limiting rails are installed at the bottom of the inner cavity of the filter box. A reciprocating screw for controlling the movement of the limiting component is installed inside the limiting rail. A motor for controlling the rotation of the reciprocating screw is installed at one end of the reciprocating screw.

[0014] Furthermore, the limiting component includes a lead screw nut, a connecting block is mounted on the upper end of the lead screw nut, and a first threaded hole is machined on the top of the connecting block.

[0015] Furthermore, arc-shaped plates are installed at both ends of the first threaded hole, and multiple second threaded holes are machined on the upper end of the arc-shaped plates, while multiple third threaded holes are machined on the sidewalls of the arc-shaped plates.

[0016] The beneficial effects of this utility model are:

[0017] This utility model's filter box contains multiple filter elements, which are rotated by a motor-driven rotating block, allowing for quick switching between different filter elements to ensure air quality in the operating room. Operation is simple; when surgery is required, a clean filter element is used, and after surgery, it is switched back to the normally used filter element. This flexible adjustment based on the required cleanliness of the operating room reduces filter consumption costs. When a clean filter element is unavailable, it is disassembled and replaced with a new one, improving the cleanliness of the surgical environment while extending the replacement cycle and reducing labor costs.

[0018] This invention further enables the use of elastic windproof cloth to sequentially cover different ventilation slots, thereby adjusting the amount of fresh air delivered to the operating room and thus regulating the cleanliness to meet different surgical needs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0021] Figure 2 This is a schematic diagram of the filter unit in an embodiment of the present invention.

[0022] Figure 3 for Figure 2 Cross-sectional view at point aa.

[0023] Figure 4 for Figure 2 Enlarged view of point A.

[0024] Figure 5 for Figure 2 Enlarged view of point B.

[0025] Figure 6 This is a schematic diagram of the limiting component in an embodiment of the present invention.

[0026] Figure 7 for Figure 2 Enlarged view of point C.

[0027] In the diagram: 10-Operating room, 11-Air outlet, 12-Circulation pipe, 20-Fresh air handling unit, 30-Circulation unit; 01-Filter unit; 1-First ventilation duct, 2-Second ventilation duct, 3-Third ventilation duct, 4-Fourth ventilation duct, 40-Elastic windbreak cloth, 100-Filter box, 110-Motor 1, 111-Connecting shaft, 120-Limit rail 1, 121-Limit rod, 122-Spring, 130-Limit slider, 140 -Limiting rail 2, 141-Reciprocating screw, 142-Motor 2, 150-Limiting assembly, 151-Screw nut, 152-Connecting block, 153-First threaded hole, 154-Arc plate, 155-Second threaded hole, 156-Third threaded hole, 160-Limiting ring, 161-Air inlet; 200-Filter assembly, 210-Rotating block, 211-Sealing ring, 212-Ventilation hole, 220-Filter element, 221-Bolt. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] An example of an adjustable cleanliness air conditioning system for operating rooms, such as... Figure 1 As shown, the system includes a fresh air handling unit 20 and a recirculation unit 30, both located outside the operating room 10. The air outlet of the fresh air handling unit 20 is connected to the air inlet of the recirculation unit 30, and the air inlet of the fresh air handling unit 20 is open to the outside atmosphere. Air from the operating room 10 is transported through a recirculation pipe 12 to the recirculation unit 30 for circulation, and then to the fresh air handling unit 20 for further purification. A filter unit 01 is installed inside the operating room 10, and the filter unit 01 is connected to the air outlet of the recirculation unit 30 via a pipe for filtering the fresh air.

[0030] like Figure 2 As shown, the filter unit 01 includes a filter box 100, and a filter assembly 200 is installed inside the filter box 100. The filter assembly 200 includes a rotating block 210, which is movably installed on the upper end of the inner cavity of the filter box 100. Multiple filter elements 220 evenly distributed circumferentially are installed inside the rotating block 210. Bolts 221 are installed at the lower end of each filter element 220 to fix it to the rotating block 210. Multiple ventilation holes 212 are machined on the upper end of the rotating block 210, and the ventilation holes 212 correspond to the positions of the filter elements 220.

[0031] A limiting ring 160 for limiting the position of the filter assembly 200 is installed at the upper end of the inner cavity of the filter box 100, and a rotating block 210 is movably installed inside the limiting ring 160. The rotating block 210 can rotate inside the limiting ring 160. A cavity for the rotating block 210 to rotate is provided inside the limiting ring 160. The limiting ring 160 is fixedly installed at the upper end of the inner cavity of the filter box 100.

[0032] The upper end of the limiting ring 160 is provided with an air inlet 161 to facilitate the supply of fresh air to the filter element 220. There is one air inlet 161, and the air inlet 161 and a ventilation hole 212 are aligned. The bottom end of the limiting ring 160 is provided with a through hole, the diameter of which is smaller than the diameter of the rotating block 210, so that fresh air can enter the lower end of the filter box 100.

[0033] A sealing ring 211 is installed on the outside of the ventilation hole 212 at the upper end of the rotating block 210. An annular groove is provided at the top of the limiting ring 160. The sealing ring 211 extends into the annular groove and is slidably sealed to the annular groove to prevent fresh air from being delivered to the operating room 10 without filtration.

[0034] A motor 110 is installed at the bottom of the filter box 100 to drive the filter assembly 200 to rotate. A connecting shaft 111 is installed at the upper end of the motor 110. The connecting shaft 111 is fixedly installed at the bottom center of the rotating block 210. The motor 110 controls the rotation of the connecting shaft 111 to facilitate switching between different filter assemblies 200 for filtration. When surgery is not required, the filter is switched to the daily-use filter 220. When surgery is required, a clean (or unused) filter 220 is used for filtration. After the surgery, the filter is switched back to the daily-use filter 220. This flexible adjustment is based on the cleanliness requirements of the operating room, reducing the consumption cost of the filter 220. When there is no clean (or unused) filter, it is removed and replaced with a new filter for use in the next surgery, improving the cleanliness of the surgical environment and extending the replacement cycle, thus reducing labor costs.

[0035] In some embodiments, a plurality of vertically arranged limiting rails 120 are fixedly installed on the inner cavity sidewall of the filter box 100. A limiting rod 121 is fixedly installed inside the limiting rail 120. A limiting slider 130 is sleeved on the rod body of the limiting rod 121. The middle part of the elastic windproof cloth 40 is fixed to one side of the limiting slider 130 by bolts. A spring 122 is sleeved on the lower end of the rod body of the limiting rod 121.

[0036] The bottom of the filter box 100 is machined with a first ventilation slot 1, a second ventilation slot 2, a third ventilation slot 3 and a fourth ventilation slot 4 for the circulation of fresh air. The diameter of the circle formed by the first ventilation slot 1, the second ventilation slot 2, the third ventilation slot 3 and the fourth ventilation slot 4 increases sequentially.

[0037] The filter box 100 is equipped with an elastic windbreak cloth 40 for opening and closing the first ventilation slot 1, the second ventilation slot 2, the third ventilation slot 3, and the fourth ventilation slot 4. The elastic windbreak cloth 40 forms a cone-shaped cylinder when fully expanded. The filter box 100 is also equipped with multiple limiting components 150 for pulling the elastic windbreak cloth 40.

[0038] The limiting component 150 includes a lead screw nut 151, a connecting block 152 fixedly installed at the upper end of the lead screw nut 151, a first threaded hole 153 machined on the top of the connecting block 152, an arc plate 154 fixedly installed at both ends of the first threaded hole 153, a plurality of second threaded holes 155 machined on the upper end of the arc plate 154, and a plurality of third threaded holes 156 machined on the side wall of the arc plate 154. The lower end of the elastic windbreak cloth 40 is fixed to the first threaded hole 153, the second threaded hole 155 and the third threaded hole 156 respectively by bolts, so as to drive the elastic windbreak cloth 40 to move. The lead screw nut 151 drives the arc plate 154 to move, so as to drive the elastic windbreak cloth 40 to open and close the first ventilation slot 1, the second ventilation slot 2, the third ventilation slot 3 and the fourth ventilation slot 4, thereby controlling the air volume. The adjacent limiting components 150 are staggered, and the stress points of the elastic windbreak cloth 40 are increased by the arc plate 154, reducing stress concentration; the arc length of the arc plate 154 is less than the arc length of the distance between the adjacent first ventilation slots 1, so as to avoid interfering with the ventilation slots.

[0039] Multiple limiting rails 140 are installed at the bottom of the inner cavity of the filter box 100. The limiting rails 140 are arranged radially along the bottom of the filter box 100. A reciprocating screw 141 for controlling the movement of the limiting component 150 is installed inside the limiting rail 140. The screw nut 151 is sleeved on the reciprocating screw 141. A motor 142 for controlling the rotation of the reciprocating screw 141 is installed at one end of the reciprocating screw 141. When the motor 142 is started, the reciprocating screw 141 is driven to rotate, which drives the screw nut 151 to move on the reciprocating screw. This causes the limiting component 150 to pull the elastic windproof cloth 40 toward the connecting shaft 111. At this time, the limiting slider 130 slides downward and presses down the spring 122, so that the elastic windproof cloth 40 sequentially opens and closes the fourth ventilation slot 4, the third ventilation slot 3, the second ventilation slot 2 and the first ventilation slot 1 to adjust the air volume delivered into the operating room 10. When the limiting component 150 moves toward the inner wall of the filter box 100, the spring 122 resets and pushes the limiting slider 130 upward, so as to drive the elastic windproof cloth 40 to reset.

[0040] In some embodiments, the limiting track 140 and the limiting component 150 are disposed inside the bottom wall of the filter box 100, so that the elastic windbreak cloth 40 moves close to the inner bottom wall of the filter box 100 to prevent fresh air from entering the unopened ventilation slots. The elastic windbreak cloth 40 opens to the first ventilation slot 1 for ventilation volume of a Class I cleanroom; it opens to the first and second ventilation slots 1 and 2 for ventilation volume of a Class II cleanroom; it opens to the first, second, and third ventilation slots 1 and 2 for ventilation volume of a Class III cleanroom; and it opens to the first, second, third, and fourth ventilation slots 3 for ventilation volume of a Class IV cleanroom. Cleanliness is adjusted by regulating the airflow. The operating room 10 is equipped with an air outlet 11 for discharging air to the outside of the operating room 10, which can be closed or opened as needed.

[0041] The various embodiments in this specification are described in a related manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A cleanable air conditioning system for operating rooms, comprising a fresh air unit (20) and a circulation unit (30) for air cleaning in an operating room (10), characterized in that: The operating room (10) is internally provided with a filtering unit (01) for filtering fresh air, and the filtering unit (01) is connected to an air outlet of a circulating unit (30) through a pipeline; The filtering unit (01) comprises a filtering box (100), and a filtering assembly (200) for filtering fresh air is internally arranged in the filtering box (100); the filtering assembly (200) comprises a rotating block (210); a limiting ring (160) for limiting the filtering assembly (200) is arranged at an upper end of an inner cavity of the filtering box (100); the rotating block (210) is movably arranged in the limiting ring (160); and an air inlet hole (161) is formed in an upper end of the limiting ring (160); a plurality of filter elements (220) are arranged in the rotating block (210); a plurality of ventilation holes (212) are formed in an upper end of the rotating block (210); and a sealing ring (211) is arranged on the upper end of the rotating block (210); and a motor one (110) for driving the rotating block (210) to rotate is arranged at the bottom of the filtering box (100).

2. The cleanability adjustable clean room air conditioning system according to claim 1, wherein: First, second, third and fourth ventilation grooves (1, 2, 3 and 4) for the circulation of fresh air are formed in the bottom of the filtering box (100). Elastic windproof cloth (40) for opening and closing the first, second, third and fourth ventilation grooves (1, 2, 3 and 4) is arranged in the filtering box (100). A limiting assembly (150) for pulling the elastic windproof cloth (40) is arranged in the filtering box (100).

3. The cleanability adjustable clean room air conditioning system according to claim 1, wherein: The operating room (10) is internally provided with a circulating pipeline (12) for being connected to the circulating unit (30).

4. The cleanability adjustable clean room air conditioning system according to claim 1, wherein: A connecting shaft (111) is arranged at the upper end of the motor one (110).

5. The cleanability adjustable clean room air conditioning system according to claim 1, wherein: A plurality of limiting rails one (120) are arranged on the side wall of the inner cavity of the filtering box (100); a limiting rod (121) is arranged in the limiting rail one (120); a limiting sliding block (130) for limiting the elastic windproof cloth (40) is sleeved on the rod body of the limiting rod (121); and a spring (122) is sleeved on the lower end of the rod body of the limiting rod (121).

6. The cleanability adjustable clean room air conditioning system according to claim 1, wherein: A plurality of limiting rails two (140) are arranged at the bottom of the inner cavity of the filtering box (100); a reciprocating screw (141) for controlling the movement of the limiting assembly (150) is arranged in the limiting rail two (140); and a motor two (142) for controlling the rotation of the reciprocating screw (141) is arranged at one end of the reciprocating screw (141).

7. The cleanability adjustable clean room air conditioning system according to claim 2, wherein: The limiting assembly (150) comprises a screw nut (151); a connecting block (152) is arranged at the upper end of the screw nut (151); and a first threaded hole (153) is formed in the top of the connecting block (152).

8. The cleanability adjustable clean room air conditioning system according to claim 7, wherein: Arc-shaped plates (154) are arranged at both ends of the first threaded hole (153); a plurality of second threaded holes (155) are formed in the upper end of the arc-shaped plate (154); and a plurality of third threaded holes (156) are formed in the side wall of the arc-shaped plate (154).

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