Negative pressure microenvironment cleaning device

Abstract

The invention discloses a negative pressure microenvironment cleaning device which comprises a machine box and a ventilation hood arranged on the machine box, a box body is arranged at the position, below the ventilation hood, in the machine box, a first filter, a second filter, a splitter plate and a draught fan are sequentially arranged in the box body from top to bottom, and an ultraviolet sterilization lamp is arranged between the first filter and the second filter; an air purification sterilizer is also arranged in the box body; a first pipeline and a second pipeline are arranged at the top of the machine box, the first pipeline and the second pipeline are communicated with the interior of the machine box and are arranged in parallel, a plurality of air outlet holes are formed in the first pipeline and the second pipeline, and a spherical air outlet is formed in each air outlet hole; under the action of the fan, gas exhaled by a patient is disinfected by the first filter, the ultraviolet sterilizing lamp, the second filter and the air purification disinfector. The technical problem that patients in the same ward are prone to cross infection in the prior art can be effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of negative pressure microenvironment purification for hospitals, and in particular to a negative pressure microenvironment cleaning device. Background Art

[0002] With the continuous improvement of surgical technology, the clean conditions and functional requirements for surgery are becoming higher and higher. In medical environments such as operating rooms, intensive care units, and infectious disease isolation wards, negative pressure microenvironment clean disinfection units are needed to control air flow, prevent the spread of pathogens, and ensure the safety of medical staff and patients.

[0003] The negative pressure microenvironment clean disinfection unit is a comprehensive whole with multiple professional functions. The clean operating room adopts air purification measures to filter dust ions in the air, so that bacteria can be transmitted without carriers, which can effectively prevent and control the occurrence of infection.

[0004] Multiple beds need to be placed in the existing wards. However, in actual use, since the conditions of each patient are different, especially those with colds, fevers or viral infections generally need to be isolated and treated. However, due to the limitations of actual conditions such as beds, the current wards still have cross-infection caused by patients through breathing and air.

[0005] The invention patent with the authorization announcement number: CN112161346B discloses an air purification device for hospitals that can purify the air in hospital wards, avoid cross-infection of infectious diseases, and provide fresh air for wards. The air purification device for hospitals includes a cyclone ultraviolet sterilization box and an exhaust pipe connected to the ward, a disinfection box, an activated carbon filter, a liquid filter box, and a drying filter; a box connected to the drying filter is arranged above the drying filter; a bipolar ion generator is arranged in the box; a third fan is arranged on the box; an air supply pipe is arranged on the third fan; the air outlet pipe is connected to the drying filter; the air supply pipe is connected to the air inlet pipe of the ward; and the exhaust pipe is connected to the exhaust pipe. The use of the air purification device for hospitals can avoid cross-infection between different wards and provide a comfortable space for patients.

[0006] Although the above invention can achieve air purification in actual use, it still cannot solve the technical problem of cross infection among patients in the same ward. Summary of the invention

[0007] The object of the present invention is to provide a negative pressure microenvironment cleansing device, which can effectively solve the technical problem in the prior art that patients in the same ward are prone to cross infection.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0009] A negative pressure micro-environment cleansing device, comprising a chassis and a ventilation hood arranged on the chassis, a box body is arranged in the chassis below the ventilation hood, a first filter, a second filter, a diverter plate and a fan are arranged in the box body from top to bottom, and an ultraviolet sterilization lamp is arranged between the first filter and the second filter;

[0010] An air purifier and disinfector is also provided in the box; a first pipe and a second pipe are provided on the top of the box, the first pipe and the second pipe are connected to the inside of the box and are arranged parallel to each other, a plurality of air outlets are provided on the first pipe and the second pipe, and a spherical air outlet is provided at each air outlet; under the action of the fan, the gas exhaled by the patient passes through the first filter, the ultraviolet sterilization lamp, the second filter and the air purifier and disinfector for disinfection, and then enters the first pipe and the second pipe, and after flowing out from the spherical air outlet, a negative pressure area for placing the bed is formed in front of the box.

[0011] Among them, the first filter and the second filter are respectively a primary filter and a high efficiency filter.

[0012] Furthermore, the cross section of the splitter plate is a V-shaped structure.

[0013] Preferably, the first pipe and the second pipe both include a fixed pipe and a movable pipe, the fixed pipe is fixedly mounted on the chassis and communicated with the chassis, the movable pipe is slidingly and sealingly mounted on the fixed pipe, and the air outlet is arranged on the sliding pipe.

[0014] Furthermore, the fixed tube and the movable tube are square tubes, and at least one sliding sealing ring is provided between the movable tube and the fixed tube.

[0015] Furthermore, the movable tube and the fixed tube are connected via a telescopic rod.

[0016] Wherein, the telescopic rod is an electric telescopic rod, a pneumatic telescopic rod or a hydraulic telescopic rod.

[0017] Furthermore, self-locking moving wheels are provided at the bottom of the chassis.

[0018] In some preferred implementation cases, support feet are provided at the four corners of the bottom of the chassis through threads.

[0019] Furthermore, inspection doors are provided on both sides of the chassis near the air purifier and disinfector.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In actual use, the present invention realizes the filtration of air by setting the first filter, the second filter, the ultraviolet sterilization lamp and the air purifier and disinfector. In use, the present invention is set at the bedside of the hospital bed. Since the ventilation hood is close to the bedside, the air exhaled by the patient can be sucked into the box at the first time under negative pressure conditions to filter the air, purify the air, and filter and disinfect the air multiple times; the purified air enters the first pipe and the second pipe, and then blows out from the spherical air outlets set on the first pipe and the second pipe. In actual use, the air outlet angle of the spherical air outlet can be adjusted according to the size of the bed to ensure that the air outlet direction of the spherical air outlet can form a wind curtain around the bed to avoid the leakage of the air exhaled by the patient. At the same time, under the effect of the formed wind curtain, it can also reduce the bacteria outside the bed from approaching the bed. In actual use, the present invention can effectively solve the technical problem of cross infection among patients in the same ward in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the connection relationship between the box body and the chassis of the present invention.

[0025] Figure 3 It is a schematic diagram of the installation relationship between the first and second filters and the box body of the present invention.

[0026] Figure 4 For the present invention Figure 3 main view.

[0027] Figure 5 It is a cross-sectional view of the AA surface in the present invention 4.

[0028] Reference numerals:

[0029] 101 chassis, 102 ventilation hood, 103 box body, 104 primary filter, 105 high efficiency filter, 106 diverter plate, 107 fan, 108 ultraviolet sterilization lamp, 109 air purifier and disinfector, 110 first pipeline, 111 second pipeline, 112 self-locking moving wheel, 113 supporting foot, 114 inspection door, 115 cover plate, 116 LCD screen, 117 filter pressing sheet, 118 filter flap, 119 primary filter fixing plate, 120 frame, 121 filter partition, 122 filter baffle, 123 wind shelter assembly, 124 connector, 125 hydraulic rod, 126 supporting beam, 127 hinge, 128 acrylic plate, 129 spherical air outlet. DETAILED DESCRIPTION

[0030] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0031] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0034] In the embodiments of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] The disclosure below provides many different embodiments or examples to implement different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present invention. In addition, the embodiments of the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0036] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0037] See also Figure 1-Figure 5 , this embodiment discloses a negative pressure microenvironment clean device, including a chassis 101 and a ventilation hood 102 arranged on the chassis 101, a box body 103 is arranged below the ventilation hood 102 in the chassis 101, a first filter, a second filter, a diverter plate 106 and a fan 107 are arranged in the box body 103 from top to bottom, and an ultraviolet sterilization lamp 108 is arranged between the first filter and the second filter;

[0038] Among them, an air purifier and disinfector 109 is also arranged in the box body 103; a first pipe 110 and a second pipe 111 are arranged on the top of the chassis 101, the first pipe 110 and the second pipe 111 are connected to the inside of the chassis 101 and are arranged parallel to each other, and a plurality of air outlets are arranged on the first pipe 110 and the second pipe 111, and a spherical air outlet 129 is arranged at each air outlet; under the action of the fan 107, the gas exhaled by the patient passes through the first filter, the ultraviolet sterilization lamp 108, the second filter and the air purifier and disinfector 109 for disinfection, and then enters the first pipe 110 and the second pipe 111, and after flowing out from the spherical air outlet 129, a negative pressure area for placing a bed is formed in front of the chassis 101.

[0039] In actual use, the present invention realizes the filtration of air by setting the first filter, the second filter, the ultraviolet sterilization lamp 108 and the air purifier and disinfector 109. In use, the present invention is set at the bedside position of the hospital bed. Since the ventilation hood 102 is close to the bedside position, the air exhaled by the patient can be sucked into the box 103 at the first time under negative pressure conditions, and the air is filtered to achieve air purification, and the air is filtered and sterilized multiple times; the purified air enters the first pipe 110 and the second pipe 111, and then blows out from the spherical air outlet 129 set on the first pipe 110 and the second pipe 111. In actual use, the air outlet angle of the spherical air outlet 129 can be adjusted according to the size of the bed to ensure that the air outlet direction of the spherical air outlet 129 can form a wind curtain around the bed to avoid the leakage of the air exhaled by the patient. At the same time, under the effect of the formed wind curtain, it can also reduce the bacteria from approaching the bed. In actual use, the present invention can effectively solve the technical problem of cross infection of patients in the same ward in the prior art.

[0040] Furthermore, in actual use, the first filter and the second filter are respectively a primary filter 104 and a high efficiency filter 105. By setting the first filter and the second filter, the filtering effect can be effectively improved to ensure the cleanliness of the air.

[0041] In this embodiment, the ultraviolet sterilization lamp 108 is provided to achieve ultraviolet sterilization of the air.

[0042] The cross section of the diverter plate 106 is a V-shaped structure.

[0043] Furthermore, in some preferred implementation cases, the first pipe 110 and the second pipe 111 both include a fixed pipe and a movable pipe, the fixed pipe is fixedly mounted on the chassis 101 and is connected to the chassis 101, the movable pipe is slidingly sealed on the fixed pipe, and the air outlet is arranged on the sliding pipe.

[0044] In this way, the overall length of the first duct 110 and the second duct 111 can be adjusted, and the air curtain can be adjusted in coordination with the air outlet direction of the spherical air outlet 129, thereby adjusting the size of the negative pressure area.

[0045] Furthermore, the fixed tube and the movable tube are square tubes, and at least one sliding seal ring is arranged between the movable tube and the fixed tube. In actual use, a triangular or quadrilateral shape can be adopted so that the fixed tube and the movable tube can be adjusted.

[0046] The movable tube and the fixed tube are connected via a telescopic rod. In actual use, the telescopic rod is a pneumatic, electric or hydraulic telescopic rod.

[0047] Furthermore, in actual use, self-locking moving wheels 112 are provided at the bottom of the chassis 101 to facilitate the movement of the entire device.

[0048] Among them, support feet 113 are provided at the four corners of the bottom of the chassis 101 through threads. After being moved to a suitable position, the support feet 113 are rotated to achieve the purpose of support.

[0049] Among them, inspection doors 114 are provided on both sides of the chassis 101 near the air purifier and disinfector 109 .

[0050] Furthermore, in some preferred implementation cases, due to the different sizes of the bed, in order to ensure the formation of the optimal negative pressure area, it is necessary to adjust the air outlet direction of the spherical air outlet 129. Therefore, in actual use, a laser emitter is provided at the adjustment part of each spherical air outlet 129. When adjusting, the laser emitter is turned on and the air outlet direction of the spherical air outlet 129 is confirmed by the position of the light spot emitted by the laser emitter.

[0051] Furthermore, in some preferred implementation cases, a wind shelter assembly 123 is installed between the first pipe 110 and the second pipe 111, and the wind shelter assembly 123 is composed of a connecting piece 124, a hydraulic rod 125, a support beam 126, a hinge 127, an acrylic plate 128 and a frame 120.

[0052] The connecting member 124 is fixedly mounted on the frame 120, one end of the hydraulic rod 125 is hinged to the first pipe or the second pipe, and the other end is hinged to the connecting member 123, the support beam 126 is installed between the first pipe and the second pipe, and is hinged to the frame 120 through a hinge 127, and the acrylic plate 128 is hinged to the frame 120 through a hinge.

[0053] The frame 120 can be turned more smoothly by extending and retracting the hydraulic rod 125. The support beam 126 is connected to the frame 120 by a hinge 127, so that the wind shelter can be turned 90 degrees. The acrylic plate 128 and the frame 120 are hinged, and in actual use, they are connected by interference fit, which is convenient for adjusting the overall turning angle of the acrylic plate 128, which can effectively reduce the impact of the wind discharged from the spherical air outlet 129 on the patient, and promote the formation of a stable clean negative pressure state around the bed.

[0054] When in use, the angle of each spherical air outlet 129 is determined according to the specifications of the hospital beds on the market;

[0055] The specific steps are as follows:

[0056] Step 1: Confirm the length, width and height of the bed;

[0057] Step 2: confirming the position information of the spherical air outlet 129, specifically including the height information and the inclination angle information of the spherical air outlet 129 installed on the first pipe 110 and the second pipe.

[0058] Step 3, using finite element analysis, the airflow direction is changed by adjusting the tilt angle of the spherical air outlet 129 to confirm the outlet angle value of the spherical air outlet 129, and light spot information is formed on the ground through light simulation.

[0059] In this way, it can be confirmed that in the case of each bed of different specifications, each spherical air outlet 129 corresponds to an air outlet angle. When adjusting the inclination angle of the spherical air outlet 129, it is only necessary to find the light spot information corresponding to the bed of the corresponding specification to adjust the angle of the spherical air outlet 129.

[0060] In actual use, the spherical air outlet

[0061] In order to facilitate those skilled in the art to further understand the present invention, the present invention is further described below in conjunction with specific implementation cases.

[0062] This implementation case mainly provides a hospital negative pressure micro-environment clean device, which specifically includes a chassis 101 and a ventilation hood 102 , and the ventilation hood 102 is fixedly connected to a cover plate 115 on the box body 103 .

[0063] After passing through the ventilation hood 102, the air enters the box body 103 disposed inside the chassis 101, and is purified for the first time by the primary filter 104 disposed inside the box body 103;

[0064] An ultraviolet sterilization lamp 108 and a high-efficiency filter 105 are installed below the primary filter 104. The ultraviolet sterilization lamp 108 and the high-efficiency filter 105 perform secondary purification on the inhaled air, and then after being diverted by the diverter plate 106 below the high-efficiency filter 105, the air enters the fan 107 arranged in the box 103. Under the action of the fan 107, the air is respectively transported to the air purifiers and disinfectors 109 on the left and right sides for a third purification. Finally, the purified air enters the first pipe 110 and the second pipe 111, and is discharged into the room through the spherical air outlet 129, forming a wind curtain on the bed.

[0065] This implementation case adopts a 2+1+1 layer filtration design, that is, two layers of filter screens (primary filter 104 and high efficiency filter 105), a layer of ultraviolet sterilization and an air purifier and disinfector 109 to purify the air, which can ensure that harmful substances in the air are fully filtered and improve the air purification function.

[0066] Furthermore, in actual use, a plurality of flow meters are arranged inside the box 103 .

[0067] In actual use, this case is connected to a 220V power supply, in which the edge of the chassis 101 has an arc shape, which is more beautiful when combined with the arc-shaped cover.

[0068] In actual use, the primary filter 104 is located under the cover plate 115. The primary filter 104 is fixed to the filter flap 118 and the primary filter fixing plate 119 through a filter screen pressing plate 117. The filter screen pressing plate 117 and the filter flap 118 are connected by threads. The primary filter 104 can be taken out and replaced by loosening the filter screen pressing plate 117. The primary filter 104 is equipped with a handle for easy removal.

[0069] Furthermore, in actual use, the filter flap 118 is connected via a hinge 127 , and the filter flap 118 can be opened via the hinge 127 . An ultraviolet sterilization lamp 108 is installed below the filter flap 118 .

[0070] The filter flap 118 is mounted on a primary filter fixing plate 119, the primary filter fixing plate 119 is connected to the side plate of the box body 103, and the cover plate 115 is hinged on the chassis so that the cover plate 115 can be freely flipped upward.

[0071] The high efficiency filter 105 is installed on the filter screen partition 121, and the filter screen retaining bar 122 is used to fix the high efficiency filter 105 through threaded connection. The filter screen partition 121 is connected to the side plate of the box body 103. The high efficiency filter 105 and the ultraviolet sterilization lamp 108 work together to effectively purify the incoming air.

[0072] Below the high-efficiency filter 105 is a guide plate, which helps the airflow to better enter the fan 107. The fan 107 is installed on the bottom plate of the box 103. On the left and right sides of the fan 107 are air purifiers and disinfectors 109, which will disinfect and sterilize the gas delivered by the fan 107 again. An inspection door 114 is set on the side chassis 101 of the air purifier and disinfector 109. The air purifier and disinfector 109 can be cleaned by opening the inspection door 114.

[0073] Furthermore, in actual use, the LCD screen 116 is installed on the chassis 101 , and the LCD screen 116 is used to control the switch of the fan 107 and the air purifier and disinfector 109 and adjust the wind speed of the fan 107 .

[0074] Furthermore, in actual use, sound insulation cotton is arranged in the chassis 101 and the box body 103 to effectively reduce the noise generated by the negative pressure micro-environment cleaning device.

[0075] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A negative pressure microenvironment cleaning device, characterized in that: It includes a chassis and a ventilation hood arranged on the chassis, wherein a box body is arranged in the chassis below the ventilation hood, and a first filter, a second filter, a diverter plate and a fan are arranged in the box body from top to bottom, and an ultraviolet sterilization lamp is arranged between the first filter and the second filter; An air purifier and disinfector is also provided in the box; a first pipe and a second pipe are provided on the top of the box, the first pipe and the second pipe are connected to the inside of the box and are arranged parallel to each other, a plurality of air outlets are provided on the first pipe and the second pipe, and a spherical air outlet is provided at each air outlet; under the action of the fan, the gas exhaled by the patient passes through the first filter, the ultraviolet sterilization lamp, the second filter and the air purifier and disinfector for disinfection, and then enters the first pipe and the second pipe, and after flowing out from the spherical air outlet, a negative pressure area for placing the bed is formed in front of the box.

2. A negative pressure microenvironment cleaning device according to claim 1, characterized in that: The first filter and the second filter are a primary filter and a high efficiency filter respectively.

3. A negative pressure microenvironment cleaning device according to claim 1, characterized in that: The cross section of the manifold is V-shaped.

4. A negative pressure microenvironment cleaning device according to claim 1, characterized in that: The first pipeline and the second pipeline both include a fixed pipe and a movable pipe. The fixed pipe is fixedly mounted on the chassis and communicated with the chassis. The movable pipe is slidably and sealably mounted on the fixed pipe. The air outlet is arranged on the sliding pipe.

5. A negative pressure microenvironment cleaning device according to claim 4, characterized in that: The fixed tube and the movable tube are square tubes, and at least one sliding sealing ring is arranged between the movable tube and the fixed tube.

6. A negative pressure microenvironment cleaning device according to claim 4, characterized in that: The movable tube and the fixed tube are connected via a telescopic rod.

7. A negative pressure microenvironment cleaning device according to claim 6, characterized in that: The telescopic rod is an electric telescopic rod, a pneumatic telescopic rod or a hydraulic telescopic rod.

8. A negative pressure microenvironment cleaning device according to any one of claims 1 to 7, characterized in that: Self-locking moving wheels are arranged at the bottom of the chassis.

9. The negative pressure microenvironment cleaning device according to claim 1, characterized in that: Support feet are provided at the four corners of the bottom of the chassis through threads.

10. The negative pressure microenvironment cleaning device according to claim 1, characterized in that: Inspection doors are provided on both sides of the chassis near the air purifier and disinfector.

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