CN219540333U - Negative pressure working cabinet - Google Patents
Negative pressure working cabinet Download PDFInfo
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- CN219540333U CN219540333U CN202320338047.3U CN202320338047U CN219540333U CN 219540333 U CN219540333 U CN 219540333U CN 202320338047 U CN202320338047 U CN 202320338047U CN 219540333 U CN219540333 U CN 219540333U
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- purifying
- air outlet
- plug
- air inlet
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Abstract
The utility model discloses a negative pressure working cabinet which comprises a shell, a fan assembly and a purifying assembly. A placing cavity is formed in the shell and is suitable for placing a medicine configuration instrument containing medicine, at least one air inlet and at least one air outlet are correspondingly formed in the front side part and the top of the shell, the air outlet is arranged close to the front side part of the shell relative to the medicine configuration instrument, a placing opening communicated with the placing cavity is formed in the front side part of the shell, and the placing opening is located between the air outlet and the air inlet. The fan assembly is arranged on the shell and is respectively communicated with the air inlet and the air outlet. The purification assembly is arranged between the air outlet and the air inlet and is used for purifying air when the air is sucked to the air outlet from the air inlet, and the purified air flows out from the air outlet and is suitable for flowing back to the air inlet through the area where the placement opening is located. The utility model is beneficial to ensuring that the working environment of the experimenter is not polluted, ensuring the physical health of the experimenter, and not affecting the experimenter to operate the medicine configuration instrument.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to a negative pressure working cabinet for medical configuration.
Background
In the field of medicine, when laboratory staff adopts a medicine configuration instrument to configure medicines, the medicines can volatilize pungent odor or toxic and harmful substances, and when the air containing the toxic and harmful substances is released to the working environment of the laboratory staff, the air can generate great harm to human bodies, so that the physical health of the laboratory staff is not facilitated.
At present, although some medicine purifying boxes with good sealing performance exist in the market, toxic and harmful substances generated in the medicine preparing process can be sufficiently purified, after the medicine preparing instrument is placed in the medicine purifying boxes, experimenters are inconvenient to operate the medicine preparing instrument again, and medicine preparing is inconvenient to carry out again.
Disclosure of Invention
The utility model has the advantages that the negative pressure working cabinet can prevent toxic and harmful air generated by the drug configuration from being emitted into the working environment of the experimenter through the placement port in the process of configuring the drug by the drug configuration instrument, is beneficial to ensuring that the working environment of the experimenter is not polluted, ensures the physical health of the experimenter, and does not influence the experimenter to operate the drug configuration instrument.
Another advantage of the utility model is to provide a negative pressure working cabinet with an air pressure difference detection assembly capable of detecting air pressure of an air inlet and air pressure of an air outlet, which is beneficial to ensuring working reliability of the negative pressure working cabinet.
The utility model further has the advantages of providing the negative pressure working cabinet, being convenient for disassembly and assembly of the purifying component and long in service life.
To achieve at least one of the above advantages, one advantage of the present utility model is to provide a negative pressure working cabinet, comprising: the device comprises a shell, wherein a placing cavity is formed in the shell and is suitable for placing a medicine configuration instrument containing medicines, at least one air inlet and at least one air outlet are correspondingly formed in the front side part and the top of the shell, the air outlet is arranged close to the front side part of the shell relative to the medicine configuration instrument, a placing opening communicated with the placing cavity is formed in the front side part of the shell, and the placing opening is positioned between the air outlet and the air inlet; the fan assembly is arranged on the shell, is respectively communicated with the air inlet and the air outlet, and is used for conveying air extracted from the air inlet to the air outlet and enabling the air pressure at the air inlet to be lower than the air pressure at the air outlet; and the purifying component is arranged in the shell and is positioned between the air outlet and the air inlet and used for purifying air when the air is extracted, and the purified air flows out from the air outlet and is suitable for flowing back to the air inlet through the area where the placing opening is positioned.
According to an embodiment of the utility model, the two groups of air inlets are arranged at two sides of the placing opening at intervals along the transverse direction, the plurality of air inlets of each group are arranged at intervals along the height direction of the placing opening, the air outlet is strip-shaped and is arranged between the two groups of air inlets, and the length of the air outlet along the transverse direction is greater than or equal to the length of the placing opening along the transverse direction.
According to an embodiment of the utility model, the fan assembly is configured as a blower or air compressor, the suction opening of which communicates with the air inlet, and the discharge opening of which communicates with the air outlet.
According to an embodiment of the utility model, the purification assembly is detachably connected to the housing.
According to an embodiment of the utility model, the purifying assembly comprises a first purifying member arranged between the fan assembly and the air intake for purifying air as it flows from the air intake to the fan assembly.
According to an embodiment of the utility model, the purifying assembly comprises a second purifying member arranged between the fan assembly and the air outlet for purifying air when the air flows from the fan assembly to the air outlet.
According to an embodiment of the utility model, the purifying assembly comprises a first purifying part and a second purifying part, the first purifying part is arranged between the fan assembly and the air inlet for purifying air when air flows from the air inlet to the fan assembly, and the second purifying part is arranged between the fan assembly and the air outlet for purifying air when air flows from the fan assembly to the air outlet.
According to an embodiment of the present utility model, a first filtering and adsorbing cavity suitable for placing a filter material is formed in the first purifying component, a first insertion and extraction buckle is disposed on one end wall of the first purifying component, a first purification alignment hole communicated with the first filtering and adsorbing cavity is formed on two side walls, a first insertion and extraction slot and a first insertion and extraction opening communicated with the first insertion and extraction slot are formed in the housing, a first card interface is disposed on a side wall of the first insertion and extraction slot facing the first insertion and extraction opening, the first insertion and extraction slots are distributed on two side walls on two sides of the first insertion and extraction opening to form two first alignment slots respectively communicated with the fan assembly and the air inlet, and when the first purifying component is inserted into the first insertion and extraction slot through the first insertion and extraction opening, the first insertion and extraction buckle is correspondingly inserted into the first card interface, and the two first purification alignment holes are respectively aligned with the two first alignment slots, and when the first purifying component passes through the first insertion and extraction opening are correspondingly inserted into the first insertion and extraction slot.
According to an embodiment of the present utility model, a second filter adsorption cavity suitable for placing a filter material is formed in the second purifying component, a second insertion and extraction buckle is disposed on an end wall of the second purifying component, a second purification alignment hole communicating with the second filter adsorption cavity is formed on two side walls, a second insertion and extraction slot and a second insertion and extraction opening communicating with the second insertion and extraction slot are formed on the housing, a second card interface is disposed on a side wall of the second insertion and extraction slot facing the second insertion and extraction opening, the second insertion and extraction slots are distributed on two side walls on two sides of the second insertion and extraction opening to form two second alignment slots respectively communicating with the fan assembly and the air outlet, and when the second purifying component is inserted into the second insertion and extraction slot through the second insertion and extraction opening, the second insertion and extraction buckle is correspondingly inserted into the second card interface, and the two second purification alignment holes are respectively aligned with the two second alignment slots when the second purifying component passes through the second insertion and extraction opening and extraction slot are correspondingly inserted into the second insertion and extraction slot.
According to an embodiment of the present utility model, the air conditioner further includes a first air pressure sensor and a second air pressure sensor, the first air pressure sensor is disposed at the air inlet, the second air pressure sensor is disposed at the air outlet, and the first air pressure sensor and the second air pressure sensor are used for detecting an air pressure difference between the air outlet and the air inlet.
Drawings
Fig. 1 shows a schematic structural diagram of a negative pressure working cabinet according to an embodiment of the present utility model.
Fig. 2 shows an exploded view of the negative pressure working cabinet according to the embodiment of the present utility model without the partition.
Fig. 3 shows an exploded view of an embodiment of the utility model at an angle between the first and second decontamination components and the housing.
Fig. 4 shows a schematic view of the device of fig. 3 at another angle.
Fig. 5 shows a functional block diagram of a differential air pressure detecting assembly according to an embodiment of the present utility model.
Reference numerals
100. A negative pressure working cabinet; 900. a drug deployment instrument;
10. a housing; 101. a placement cavity; 102. an air inlet; 103. an air outlet; 104. a placement port; 105. a first insertion groove; 1051. a first card interface; 1052. a first alignment slot; 106. a first plug port; 107. a second insertion groove; 1071. a second card interface; 1072. a second alignment slot; 108. a second plug port; 11. a partition;
20. a fan assembly;
30. a purification assembly; 31. a first purifying member; 311. the first plug buckle; 3101. a first purge alignment aperture; 32. a second purifying member; 321. the second plug buckle; 3201. a second purge alignment aperture;
40. an air pressure difference detection assembly; 41. a first air pressure sensor; 42. a second air pressure sensor.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments described below are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 and 2, a negative pressure working cabinet 100 according to a preferred embodiment of the present utility model will be described in detail below. The negative pressure working cabinet 100 includes a housing 10, a blower assembly 20, and a purge assembly 30.
A placement cavity 101 is formed in the housing 10 and is suitable for placing a drug dispensing device 900 containing a drug, at least one air inlet 102 and one air outlet 103 are correspondingly formed on the front side and the top of the housing 10, and the air outlet 103 is disposed close to the front side of the housing 10 relative to the drug dispensing device 900. The front side of the housing 10 is provided with a placement opening 104 communicated with the placement cavity 101, and the placement opening 104 is located between the air outlet 103 and the air inlet 102.
The fan assembly 20 is disposed in the housing 10, and the fan assembly 20 is respectively communicated with the air inlet 102 and the air outlet 103, and is configured to convey air extracted from the air inlet 102 to the air outlet 103, and make the air pressure at the air inlet 102 lower than the air pressure at the air outlet 103.
The purifying component 30 is disposed between the air outlet 103 and the air inlet 102, and is used for purifying air when the air is drawn from the air inlet 102 to the air outlet 103, and the purified air flows out from the air outlet 103 and is suitable for flowing back to the air inlet 102 through the area where the placement port 104 is located.
In other words, when using the negative pressure working cabinet 100 of the present utility model, an experimenter may first place the medicine preparing apparatus 900 in the placing cavity 101 through the placing port 104, and the fan assembly 20 will draw the air around the air inlet 102 (i.e. the air in the external working environment and dissipated to the placing port 104 from the medicine preparing apparatus 900) from the air inlet 102 to the air outlet 103 when the medicine preparing apparatus is opened to prepare medicines. In this process, the air will be purified by the purifying component 30, and because the air pressure at the air inlet 102 is lower than the air pressure at the air outlet 103 during the operation of the fan component 20, and the placement opening 104 is located between the air outlet 103 and the air inlet 102, the purified air flowing out from the air outlet 103 will flow into the air inlet 102 through the area where the placement opening 104 is located under the action of the air pressure difference, and the purified air will cover the area where the placement opening 104 is located when flowing. Therefore, the negative pressure working cabinet 100 of the utility model can prevent toxic and harmful air from being emitted into the working environment of the experimenter through the placing port 104 by the adsorption of the fan assembly 20 and the covering of the purified air, thereby being beneficial to ensuring that the working environment of the experimenter is not polluted and ensuring the physical health of the experimenter. And the experimenter can conveniently operate the medicine configuration instrument through the placement port 104 to adjust the medicine configuration process. Therefore, the negative pressure working cabinet 100 of the utility model does not influence the operation of the drug configuration instrument by the experimenter, and is beneficial to ensuring that the working environment of the experimenter is not polluted and ensuring the physical health of the experimenter.
According to some preferred embodiments of the present utility model, referring to fig. 1, a partition 11, such as a partition plate, is provided in the placement cavity 101 of the housing 10, for dividing the placement cavity 101 into two chambers for placing two drug dispensing instruments 900. In this way, the negative pressure working cabinet 100 of the present utility model can simultaneously purify the harmful substances generated when the two drug dispensing apparatuses 900 dispense drugs, which is beneficial to improving the drug dispensing efficiency of the experimenters without affecting the health.
According to some preferred embodiments of the present utility model, referring to fig. 1 and 2, the air inlets 102 are two groups, the two groups of air inlets 102 are disposed at two sides of the placement opening 104 at intervals along a transverse direction, and the plurality of air inlets 102 of each group are disposed at intervals along a height direction of the placement opening 104, the air outlets 103 are elongated and disposed between the two groups of air inlets 102, and an extension length of the air outlets 103 along the transverse direction is greater than or equal to a length of the placement opening 104 along the transverse direction. In this way, in the process that the purified air flows into the air inlet 102 through the area where the placement opening 104 is located under the action of the air pressure difference, an air wall which can completely cover the placement opening 104 is formed at the placement opening 104, so that toxic and harmful air generated by medicine configuration can be better prevented from being emitted to the working environment where the experimenter is located, and the purifying and isolating effects on the working environment of the experimenter are good.
According to some preferred embodiments of the present utility model, referring to fig. 1 and 2, the blower assembly 20 is configured as a blower or air compressor having its intake in communication with the intake 102 and its exhaust in communication with the exhaust 103. When the air blower or the air compressor works, air is sucked in from an air suction port of the air blower or the air compressor, an air exhaust port is exhausted, the air suction port is in a negative pressure state, and the air exhaust port is in a positive pressure state, so that the air inlet 102 communicated with the air suction port and the air outlet 103 communicated with the air exhaust port can be in a negative pressure state and a positive pressure state respectively when the air blower or the air compressor is started, and the air pressure at the air inlet 102 is lower than the air pressure at the air outlet 103.
According to some preferred embodiments of the present utility model, referring to fig. 2, the decontamination module 30 includes a first decontamination member 31 and a second decontamination member 32. The first purifying means 31 is arranged between the fan assembly 20 and the air intake 102 for purifying air as it flows from the air intake 102 to the fan assembly 20. The second purifying member 32 is disposed between the blower assembly 20 and the air outlet 103 for purifying air as the air flows from the blower assembly 20 to the air outlet 103. In this way, in the process that the fan draws air from the air inlet 102 to the air outlet 103, the purifying component 30 performs double purification on the air, and the air purifying effect is good.
Of course, it is understood that the purification assembly 30 of the present utility model may also include only the first purification member 31 disposed between the fan assembly 20 and the air inlet 102 or only the second purification member 32 disposed between the fan assembly 20 and the air outlet 103, which are all within the scope of the present utility model.
Further, the first purifying member 31 and the second purifying member 32 are detachably connected to the housing 10, respectively. In this way, when the purifying assembly 30 has reached the service life, and no longer has the purifying function, the experimenter can detach the old first purifying member 31 and second purifying member 32, and correspondingly replace the new first purifying member 31 and second purifying member 32, so that the negative pressure working cabinet 100 can have a longer service cycle.
Further, referring to fig. 3 and 4, a first filter adsorption cavity suitable for placing the filter material is formed in the first purifying member 31, a first plug buckle 311 is provided on one end wall of the first purifying member 31, and a first purifying alignment hole 3101 communicating with the first filter adsorption cavity is formed on both side walls. The housing 10 forms a first insertion slot 105 and a first insertion opening 106 communicating with the first insertion slot 105, a first card interface 1051 is disposed on a side wall of the first insertion slot 105 facing the first insertion opening 106, the first insertion slots 105 are distributed on two side walls of two sides of the first insertion opening 106 to form two first alignment slots 1052 respectively communicating with the fan assembly 20 and the air inlet 102, and when the first purifying component 31 is inserted into the first insertion slot 105 through the first insertion opening 106, the first insertion buckle 311 is correspondingly inserted into the first card interface 1051, and the two first purifying alignment holes 3101 are respectively aligned with the two first alignment slots 1052, and when the first purifying component 31 is pulled out of the first insertion slot 105 through the first insertion opening 106, the first insertion buckle 311 is correspondingly pulled out of the first card interface 1051.
Further, referring to fig. 3 and 4, a second filter adsorption cavity suitable for placing the filter material is formed in the second purifying member 32, a second insertion buckle 321 is provided on one end wall of the second purifying member 32, and second purifying alignment holes 3201 communicating with the second filter adsorption cavity are formed on both side walls. The casing 10 forms a second insertion slot 107 and a second insertion opening 108 communicating with the second insertion slot 107, a second fastening opening 1071 is disposed on a side wall of the second insertion slot 107 facing the second insertion opening 108, two second alignment slots 1072 respectively communicating with the fan assembly 20 and the air outlet 103 are formed on two side walls of the second insertion slot 107, and when the second purifying component 32 is inserted into the second insertion slot 107 through the second insertion opening 108, the second insertion buckle 321 is correspondingly inserted into the second fastening opening 1071, and the two second purifying alignment holes 3201 are respectively aligned with the two second alignment slots 1072, and when the second purifying component 32 is pulled out of the second insertion slot 107 through the second insertion opening 108, the second insertion buckle 321 is correspondingly pulled out of the second fastening opening 1052.
In this way, when the filter media in the first purifying member 31 and the second purifying member 32 are saturated in adsorption, an experimenter can insert and withdraw the filter media into and from the first inserting and withdrawing groove 105 and the second inserting and withdrawing groove 107, respectively, so as to detach and mount the first purifying member 31 and the second purifying member 32, and then replace the first purifying member 31 and the second purifying member 32.
Further, a gasket may be further provided between the first purifying member 31 and the first inserting/extracting groove 105 and between the second purifying member 32 and the second inserting/extracting groove 107, for increasing the air tightness after the first purifying member 31 and the second purifying member 32 are mounted. The filter material may be activated carbon or the like.
According to some preferred embodiments of the present utility model, referring to fig. 2 and 5, the negative pressure working cabinet 100 further includes a differential air pressure detecting assembly 40, and the differential air pressure detecting assembly 40 includes a first air pressure sensor 41 and a second air pressure sensor 42. The first air pressure sensor 41 is disposed at the air inlet 102, and is configured to detect air pressure at the air inlet 102. The second air pressure sensor 42 is disposed at the air outlet 103, and is configured to detect air pressure at the air outlet 103, so that the air pressure difference detecting assembly 40 can determine the air pressure difference between the air outlet 103 and the air inlet 102 through the difference detected by the first air pressure sensor 41 and the second air pressure sensor 42.
In this way, when the blower assembly 20 works, an experimenter can determine whether the blower assembly 20 can form sufficient air pressure difference between the air inlet 102 and the air outlet 103 according to the detection result of the air pressure difference detection assembly 40, so that the experimenter can repair, adjust or replace the blower assembly 20 in time when the measured air pressure difference is smaller or the air pressure difference is not measured, the sufficient air pressure difference can be always provided in the working process of the blower assembly 20, and the working reliability of the negative pressure working cabinet 100 is improved.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The advantages of the present utility model have been fully and effectively realized. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.
Claims (10)
1. Negative pressure work cabinet, its characterized in that includes:
the device comprises a shell, wherein a placing cavity is formed in the shell and is suitable for placing a medicine configuration instrument containing medicines, at least one air inlet and at least one air outlet are correspondingly formed in the front side part and the top of the shell, the air outlet is arranged close to the front side part of the shell relative to the medicine configuration instrument, a placing opening communicated with the placing cavity is formed in the front side part of the shell, and the placing opening is positioned between the air outlet and the air inlet;
the fan assembly is arranged on the shell, is respectively communicated with the air inlet and the air outlet, and is used for conveying air extracted from the air inlet to the air outlet and enabling the air pressure at the air inlet to be lower than the air pressure at the air outlet; the method comprises the steps of,
the purification assembly is arranged between the air outlet and the air inlet and is used for purifying air when the air is extracted, and the purified air flows out of the air outlet and then flows back to the air inlet through the area where the placement opening is located.
2. The negative pressure working cabinet according to claim 1, wherein the air inlets are two groups, the two groups of air inlets are arranged at two sides of the placing opening at intervals along the transverse direction, the plurality of air inlets of each group are arranged at intervals along the height direction of the placing opening, the air outlets are strip-shaped and are arranged between the two groups of air inlets, and the length of the extension of the air outlets along the transverse direction is greater than or equal to the length of the placing opening along the transverse direction.
3. The negative pressure working cabinet of claim 1, wherein the fan assembly is configured as a blower or air compressor having an intake port in communication with the air intake port and an exhaust port in communication with the air outlet port.
4. The negative pressure working cabinet of claim 1, wherein the purge assembly is removably attached to the housing.
5. The negative pressure working cabinet of claim 1, wherein the purge assembly includes a first purge component disposed between the blower assembly and the air intake for purging air as it flows from the air intake to the blower assembly.
6. The negative pressure working cabinet of claim 1, wherein the purifying assembly includes a second purifying member disposed between the blower assembly and the air outlet for purifying air as it flows from the blower assembly to the air outlet.
7. The negative pressure working cabinet of claim 1, wherein the purifying assembly includes a first purifying member disposed between the blower assembly and the air intake for purifying air as it flows from the air intake to the blower assembly and a second purifying member disposed between the blower assembly and the air outlet for purifying air as it flows from the blower assembly to the air outlet.
8. The negative pressure working cabinet according to claim 7, wherein a first filter adsorption cavity suitable for placing filter materials is formed in the first purifying component, a first plug buckle is arranged on one end wall of the first purifying component, first purification alignment holes communicated with the first filter adsorption cavity are formed on two side walls of the first purifying component, a first plug slot and a first plug hole communicated with the first plug slot are formed in the shell, a first clamping interface is arranged on the side wall of the first plug slot, the first plug slot is distributed on two side walls of the two sides of the first plug hole, two first alignment slots respectively communicated with the fan assembly and the air inlet are formed on two side walls of the first plug slot, and when the first purifying component is inserted into the first plug slot through the first plug slot, the first plug buckle is correspondingly inserted into the first clamping interface, and the two first alignment holes are respectively aligned with the two first alignment slots, and when the first purifying component passes through the first plug buckle and is correspondingly inserted into the first plug slot through the first plug slot.
9. The negative pressure working cabinet according to claim 7, wherein a second filter adsorption cavity suitable for placing filter materials is formed in the second purifying component, a second plug buckle is arranged on one end wall of the second purifying component, second purification alignment holes communicated with the second filter adsorption cavity are formed on two side walls of the second purifying component, a second plug slot and a second plug hole communicated with the second plug slot are formed in the shell, a second clamping interface is arranged on the side wall, facing the second plug hole, of the second plug slot, two second alignment slots respectively communicated with the fan assembly and the air outlet are formed on two side walls of the second plug hole, and when the second purifying component is inserted into the second plug slot through the second plug hole, the second plug buckle is correspondingly inserted into the second clamping interface, and the two second alignment holes are respectively aligned with the two second purification alignment slots, when the second purifying component is inserted into the second plug slot through the second plug hole, and when the second purifying component is inserted into the second plug slot through the second plug hole.
10. The negative pressure working cabinet of claim 1, further comprising a first air pressure sensor and a second air pressure sensor, wherein the first air pressure sensor is disposed at the air inlet, the second air pressure sensor is disposed at the air outlet, and the first air pressure sensor and the second air pressure sensor are configured to detect a difference in air pressure between the air outlet and the air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320338047.3U CN219540333U (en) | 2023-02-28 | 2023-02-28 | Negative pressure working cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320338047.3U CN219540333U (en) | 2023-02-28 | 2023-02-28 | Negative pressure working cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219540333U true CN219540333U (en) | 2023-08-18 |
Family
ID=87738120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320338047.3U Active CN219540333U (en) | 2023-02-28 | 2023-02-28 | Negative pressure working cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219540333U (en) |
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2023
- 2023-02-28 CN CN202320338047.3U patent/CN219540333U/en active Active
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