CN210613735U - Negative pressure isolating device for laboratory - Google Patents
Negative pressure isolating device for laboratory Download PDFInfo
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- CN210613735U CN210613735U CN201921488259.XU CN201921488259U CN210613735U CN 210613735 U CN210613735 U CN 210613735U CN 201921488259 U CN201921488259 U CN 201921488259U CN 210613735 U CN210613735 U CN 210613735U
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Abstract
The utility model relates to a negative pressure isolating device is used in laboratory. The test box comprises a box body, wherein the box body is provided with a test space, the front side of the box body is provided with an opening, the opening is hinged with a cabin door, the box body is provided with a vent groove, the vent groove is communicated with the test space, the right side wall of the test space is provided with a T-shaped concave hole, the T-shaped concave hole comprises a guide section and an introduction section, the inlet of the vent groove is positioned in the middle of the guide section, and a sliding block is arranged; the upper side wall and the lower side wall of the guide section are respectively provided with an upper guide groove and a lower guide groove, and the upper end and the lower end of the sliding block are respectively inserted into the upper guide groove and the lower guide groove; the sliding block is connected with a main fixed block, and the main fixed block is connected with a main hook block; the cabin door is connected with an auxiliary fixed block, and the auxiliary fixed block is connected with an auxiliary hook block; an intermediate connecting piece is arranged between the main hook block and the auxiliary hook block. The sliding block which can control the communication of the vent groove is arranged on one side wall of the test space, the sliding block can be in linkage connection with the cabin door, when the cabin door is opened, the external negative pressure air exhaust system exhausts air to the test space, and the test space and a laboratory are kept relatively isolated.
Description
Technical Field
The utility model relates to a laboratory test technical field especially relates to a negative pressure isolating device is used in laboratory.
Background
Tests with higher risk, such as biological tests and chemical tests, are often carried out in laboratories; some tests produce harmful gases or bacteria, etc.; in order to prevent harmful gas and bacteria from entering a laboratory, a plurality of laboratories at present adopt a negative pressure isolation device, a negative pressure filtering and air extracting system is adopted in the negative pressure isolation device to directly extract air to a test space, so that the test space is kept in a negative pressure state, and once the harmful gas and the bacteria are generated, the harmful gas and the bacteria are directly extracted out of the laboratory and are filtered and disinfected. However, the negative pressure isolation device is inaccurate for detection or observation in the test process; in order to avoid the situation, a switch is arranged in the conventional negative pressure isolation device, after the test is completed, the switch is turned on, the negative pressure filtering and air exhausting system performs negative pressure air exhausting on the test space, and meanwhile, a cabin door of the test space is opened, and the result is tested or observed. However, in such a situation, the situation that the cabin door is opened by mistake often occurs, and the cabin door is opened before the switch is not opened, so that the negative pressure filtering and air-extracting system does not extract air into the test space, and toxic gas or harmful bacteria are exposed in a laboratory.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve prior art not enough, provide a negative pressure isolating device is used in laboratory, this negative pressure isolating device can be when opening the hatch door, and the implementation negative pressure that bleeds to experimental space is kept apart.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted does:
a negative pressure isolation device for a laboratory comprises a box body, wherein a test space is arranged on the left side of the box body, an opening communicated with the test space is formed in the front side of the box body, a cabin door is hinged to the right side of the opening, an air channel is arranged on the right side face of the box body and is communicated with the test space, a T-shaped concave hole is formed in the right side wall of the test space and comprises a guide section and an introduction section, an inlet of the air channel is located in the middle of the side wall of the guide section, a sliding block is arranged in the guide section, the upper width and the lower width of the introduction section are larger than the width of the sliding block, and the front length and the rear length of; the upper side wall and the lower side wall of the guide section are respectively provided with an upper guide groove and a lower guide groove, and the upper end and the lower end of the sliding block are respectively inserted into the upper guide groove and the lower guide groove; the side surface of the sliding block is connected with a main fixing block, and the main fixing block is connected with a main hook block; the inner side surface of the cabin door is connected with an auxiliary fixed block, and the auxiliary fixed block is connected with an auxiliary hook block; an intermediate connecting piece is arranged between the main hook block and the auxiliary hook block, and two ends of the intermediate connecting piece are respectively movably connected with the main hook block and the auxiliary hook block.
Furthermore, the middle connecting piece comprises a main connecting part, an auxiliary connecting part and a middle connecting part, wherein a main clamping ring connected with the main hook block is arranged at the end part of the main connecting part, and an auxiliary clamping ring connected with the auxiliary hook block is arranged at the auxiliary connecting part; the two ends of the middle connecting part are respectively connected with the main connecting part and the auxiliary connecting part.
Still further, one end of the main connecting portion is provided with a main thread section, one end of the auxiliary connecting portion is provided with an auxiliary thread section, the intermediate connecting portion is a sleeve, two ends of the sleeve are respectively provided with internal threads, the rotating directions of the internal threads at the two ends are opposite, and the sleeve is respectively in threaded connection with the main thread section and the auxiliary thread section.
Furthermore, the front end face of the box body is provided with an annular groove matched with the cabin door, the middle of the bottom surface of the annular groove is provided with an inwards-concave annular sealing groove, and the cabin door is provided with a flexible annular sealing lug matched with the annular sealing groove.
Furthermore, the hatch door is provided with an observation window, and transparent glass is installed on the observation window.
Furthermore, a plurality of mounting holes are formed in the upper end face of the box body, a plurality of T-shaped fixing frames used for mounting functional modules are mounted in the mounting holes, and the functional modules comprise primary filters, high-efficiency filters, ultraviolet lamps or fans; the upper end face of the box body is provided with a concave hole matched with the upper end of the T-shaped fixing frame.
Still further, the lower extreme of T shape mount is equipped with the through-hole, functional module is fixed in the through-hole.
The utility model has the advantages that: a sliding block capable of controlling the communication of the vent groove is arranged on one side wall of the test space, the sliding block can be in linkage connection with the cabin door, when the cabin door is opened, the vent groove is also opened by the sliding block, the external negative pressure air exhaust system exhausts air to the test space, and the test space is kept relatively isolated from a laboratory.
Drawings
Fig. 1 is a schematic diagram of the present embodiment.
Fig. 2 is a schematic diagram of the present embodiment.
Fig. 3 is an enlarged schematic view of a point a in fig. 2.
Fig. 4 is a partially exploded view of the present embodiment.
Fig. 5 is a schematic view of an intermediate connector.
Reference numerals:
1-a box body; 2-a pipeline; 3-negative pressure air extraction system; 4-a cabin door; 5-transparent glass; 6-intermediate connecting piece; 7-a slide block; 8-annular seal groove; 9-annular groove; 10-main fixed block; 11-main hook block; 12-an inlet; 13-test space; 14-an introduction section; 15-guide section; 16-T-shaped concave hole; 17-vent groove; 18-mounting hole; 19-concave hole; 20-T-shaped fixing frame; 21-functional module; 61-main connection; 611 — primary snap ring; 612-main thread section; 63-intermediate connection; 62-secondary connection; 621-minor thread segment; 622-secondary snap ring; 41-Flexible annular sealing lug.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Example (b): see fig. 1-5.
A negative pressure isolation device for a laboratory comprises a box body 1, wherein a test space 13 is arranged on the left side of the box body 1, an opening communicated with the test space 13 is formed in the front side of the box body 1, a cabin door 4 is hinged to the right side of the opening, a vent groove 17 is formed in the right side face of the box body 1, the vent groove 17 is communicated with the test space 13, a T-shaped concave hole 16 is formed in the right side wall of the test space 13, the T-shaped concave hole 16 comprises a guide section 15 and an introduction section 14, an inlet 12 of the vent groove 17 is located in the middle of the side wall of the guide section 15, a sliding block 7 is arranged in the guide section 15, the upper and lower width of the introduction section 14 is larger than the width of the sliding block 7, and the front and; the upper side wall and the lower side wall of the guide section 15 are respectively provided with an upper guide groove and a lower guide groove, and the upper end and the lower end of the sliding block 7 are respectively inserted into the upper guide groove and the lower guide groove; the side surface of the sliding block 7 is connected with a main fixing block 10, and the main fixing block 10 is connected with a main hook block 11; the inner side surface of the cabin door 4 is connected with an auxiliary fixed block (not shown in the figure), and the auxiliary fixed block is connected with an auxiliary hook block (not shown in the figure); an intermediate connecting piece 6 is arranged between the main hook block 11 and the auxiliary hook block, and two ends of the intermediate connecting piece 6 are respectively movably connected with the main hook block 11 and the auxiliary hook block.
When the device is used specifically, the outlet of the vent groove 17 is connected with an external negative pressure air extraction system 3 through the pipeline 2, and under normal conditions, the vent groove 17 and the test space 13 are in a negative pressure state; during the test, the cabin door 4 is closed, and the cabin door 4 rotates to drive the intermediate connecting piece 6 to move and push the main fixing block 10 and the sliding block 7 to move along the upper guide groove and the lower guide groove; the sliding block 7 is gradually close to the inlet 12 of the vent groove 17 and gradually shields the vent groove, when the cabin door 4 is closed, the sliding block 7 completely shields the vent groove 17, at the moment, the test space 13 is separated from the vent groove 17, and the test space 13 is relatively independent and is not interfered by the outside. When hatch door 4 is opened, vice fixed block drives middle connecting piece 6 through vice colluding the piece and removes to box 1 is outer, middle connecting piece 6 drives main piece 11 that colludes, main fixed block 10 and slider 7 remove to hatch door 4 direction, slider 7 separates with vent groove 17's entry 12 gradually, vent groove 17 and test space 13 intercommunication, gas in the test space 13 is taken out by the negative pressure at once, make test space 13 still keep a relative isolated state with the laboratory air, gas in the test space 13 can not spread in the laboratory. The structures of the auxiliary fixing blocks and the auxiliary hook blocks can be the same as the structures of the main fixing blocks 10 and the main hook blocks 11.
In the specific design, in order to facilitate the installation and the disassembly of the sliding block 7, a T-shaped concave hole is arranged on the right side wall of the test space 13, and the sliding block 7 is firstly placed in the leading-in section 14 and then gradually enters the guide section 15 from the leading-in section 14. In the working process, the vent groove 17 can be always kept in a negative pressure state, when the cabin door 4 is opened, the sliding block 7 moves, and the vent groove 17 is immediately communicated with the test space 13 to exhaust the test space 13.
Further, the intermediate connecting member 6 includes a main connecting portion 61, an auxiliary connecting portion 62 and an intermediate connecting portion 63, the end of the main connecting portion 61 is provided with a main snap ring 611 connected with the main hook block 11, and the auxiliary connecting portion 62 is provided with an auxiliary snap ring 622 connected with the auxiliary hook block; the intermediate connection portion 63 has both ends connected to the main connection portion 61 and the sub connection portion 62, respectively.
The middle connecting piece 6 is respectively movably connected with the main hook block 11 and the auxiliary hook block through the main snap ring 611 and the auxiliary snap ring 622 on the two sides, and has simple structure and convenient connection. The intermediate connecting member 6 may be integrally formed.
Still further, one end of the main connection portion 61 is provided with a main thread section 612, one end of the auxiliary connection portion 62 is provided with an auxiliary thread section 621, the intermediate connection portion 63 is a sleeve, two ends of the sleeve are respectively provided with internal threads, the screwing directions of the internal threads at the two ends are opposite, and the sleeve is respectively in threaded connection with the main thread section 612 and the auxiliary thread section 621.
Set up 6 middle connecting pieces into 3 parts that connect gradually, and can adjust length, facilitate the use and install. Because the screwing directions of the internal threads at the two ends are opposite, the connecting length of the sleeve to the main thread section 612 and the auxiliary thread end can be adjusted simultaneously by rotating the sleeve, and the adjustment is convenient. The sleeve can also be removed, and when negative pressure is required to be kept all the time, the sliding block 7 can be kept away from the inlet 12 of the vent groove 17 all the time, and the vent groove 17 is kept communicated with the test space 13.
Furthermore, the front end face of the box body 1 is provided with an annular groove 9 matched with the cabin door 4, the middle of the bottom surface of the annular groove 9 is provided with an inwards concave annular sealing groove 8, and the cabin door 4 is provided with a flexible annular sealing bump 41 matched with the annular sealing groove 8.
In a specific design, the area of the cabin door 4 is larger than that of the opening, or the cabin door 4 completely covers the opening; when the hatch door 4 is closed, the flexible annular sealing lug 41 is inserted into the annular groove 9, so that the hatch door 4 has good sealing performance; when in test, the leakage of the hatch 4 can be avoided, and the safety is improved. The flexible annular sealing projection 41 may be made of silicone or the like. The silica gel is fixed to the cabin door 4 by adhesion.
Further, the cabin door 4 is provided with an observation window, and the observation window is provided with transparent glass 5.
For convenient observation, this technical scheme is provided with the observation window in order to make things convenient for the observation test to change.
Further, a plurality of mounting holes 18 are formed in the upper end face of the box body 1, a plurality of T-shaped fixing frames 20 which can be used for mounting functional modules 21 are mounted in the mounting holes 18, and the functional modules 21 include primary filters, high-efficiency filters, ultraviolet lamps or fans; the upper end surface of the box body 1 is provided with a concave hole 19 matched with the upper end of the T-shaped fixing frame 20.
Still further, the lower end of the T-shaped fixing frame 20 is provided with a through hole, and the functional module 21 is fixed in the through hole.
When the test is carried out, special treatment may need to be carried out on the gas, so the technical scheme is provided with the mounting hole 18 and the T-shaped fixing frame 20, the T-shaped fixing frame 20 is inserted into the mounting hole 18, the vent groove 17 penetrates through the middle part of the mounting hole 18, when the functional module 21 needs to be mounted, the functional module 21 is fixed on the T-shaped fixing frame 20, then the T-shaped fixing frame 20 is inserted into the mounting hole 18, and the upper end of the T-shaped fixing frame is positioned in the concave hole 19. When installation is not required, the T-shaped mounting bracket is inserted directly into the mounting hole 18. If the negative pressure caused by the outside is insufficient, a fan or a blower can be arranged to improve the negative pressure.
Having described the invention in detail, it will be apparent to those skilled in the art that modifications and equivalents may be made to the disclosed embodiments without departing from the spirit and scope of the disclosed embodiments.
Claims (7)
1. The utility model provides a laboratory is with negative pressure isolating device, its includes the box, and the left side of box is equipped with experimental space, and the front side of box be equipped with the opening of experimental space intercommunication, and the open-ended right side articulates there is the hatch door, the right flank of box is equipped with the air channel, air channel and experimental space intercommunication, its characterized in that: the right side wall of the test space is provided with a T-shaped concave hole, the T-shaped concave hole comprises a guide section and an introduction section, an inlet of the vent groove is positioned in the middle of the side wall of the guide section, a sliding block is arranged in the guide section, the upper and lower width of the introduction section is greater than that of the sliding block, and the front and rear length of the introduction section is greater than that of the sliding block; the upper side wall and the lower side wall of the guide section are respectively provided with an upper guide groove and a lower guide groove, and the upper end and the lower end of the sliding block are respectively inserted into the upper guide groove and the lower guide groove; the side surface of the sliding block is connected with a main fixing block, and the main fixing block is connected with a main hook block; the inner side surface of the cabin door is connected with an auxiliary fixed block, and the auxiliary fixed block is connected with an auxiliary hook block; an intermediate connecting piece is arranged between the main hook block and the auxiliary hook block, and two ends of the intermediate connecting piece are respectively movably connected with the main hook block and the auxiliary hook block.
2. The negative pressure isolation device for the laboratory according to claim 1, wherein: the middle connecting piece comprises a main connecting part, an auxiliary connecting part and a middle connecting part, a main clamping ring connected with the main hook block is arranged at the end part of the main connecting part, and an auxiliary clamping ring connected with the auxiliary hook block is arranged at the auxiliary connecting part; the two ends of the middle connecting part are respectively connected with the main connecting part and the auxiliary connecting part.
3. The negative pressure isolation device for the laboratory according to claim 2, wherein: the one end of main connecting portion is equipped with main screw thread section, and the one end of vice connecting portion is equipped with vice screw thread section, and intermediate junction is the sleeve, and telescopic both ends are equipped with the internal thread respectively, and the internal thread of both ends revolves to opposite, and the sleeve respectively with main screw thread section, vice screw thread section threaded connection.
4. The negative pressure isolation device for the laboratory according to claim 1, wherein: the front end face of the box body is provided with an annular groove matched with the cabin door, the middle of the bottom surface of the annular groove is provided with an inwards-concave annular sealing groove, and the cabin door is provided with a flexible annular sealing lug matched with the annular sealing groove.
5. The negative pressure isolation device for the laboratory according to claim 1, wherein: the hatch door is equipped with the observation window, and transparent glass is installed to the observation window.
6. The negative pressure isolation device for the laboratory according to claim 1, wherein: the upper end surface of the box body is provided with a plurality of mounting holes, a plurality of T-shaped fixing frames which can be used for mounting functional modules are mounted in the mounting holes, and the functional modules comprise primary filters, high-efficiency filters, ultraviolet lamps or fans; the upper end face of the box body is provided with a concave hole matched with the upper end of the T-shaped fixing frame.
7. The negative pressure isolation device for the laboratory according to claim 6, wherein: the lower end of the T-shaped fixing frame is provided with a through hole, and the functional module is fixed in the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921488259.XU CN210613735U (en) | 2019-09-09 | 2019-09-09 | Negative pressure isolating device for laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921488259.XU CN210613735U (en) | 2019-09-09 | 2019-09-09 | Negative pressure isolating device for laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210613735U true CN210613735U (en) | 2020-05-26 |
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ID=70753153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921488259.XU Active CN210613735U (en) | 2019-09-09 | 2019-09-09 | Negative pressure isolating device for laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210613735U (en) |
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2019
- 2019-09-09 CN CN201921488259.XU patent/CN210613735U/en active Active
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