CN212301600U

CN212301600U - Descending airflow velocity detection tool of array type biosafety cabinet

Info

Publication number: CN212301600U
Application number: CN202021303980.XU
Authority: CN
Inventors: 何文旭; 陈财
Original assignee: Suzhou Xinyi Detection Technology Research Co ltd
Current assignee: Suzhou Xinyi Detection Technology Research Co ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-01-05
Anticipated expiration: 2030-07-06

Abstract

The utility model discloses a descending current velocity of flow detection instrument of array biosafety cabinet has solved the measurement personnel and has need the range finding to draw a little, causes the not accurate problem of measuring result, and its technical scheme main points are: including the mount that is used for fixed anemoscope, still including the location structure who is used for fixing a position the mount, location structure includes first locating rack and the second locating rack that forms sliding connection structure each other, is equipped with first slide rail on the first locating rack, and the bottom sliding connection of mount is on first slide rail, and the array is equipped with a plurality of location mouths on the first slide rail, is equipped with on the mount to be used for with location mouth complex joint structure, the utility model discloses a set up first locating rack and locating rack, the location mouth is seted up to the array on first locating rack to the array sets up limit structure on the second locating rack, makes the mount fix a position according to location mouth and limit structure, makes the inspector need not to find distance and draws the point, thereby makes to detect more convenient and more accurate.

Description

Descending airflow velocity detection tool of array type biosafety cabinet

Technical Field

The utility model relates to a biosafety cabinet's detection instrument, more specifically say, it relates to an array biosafety cabinet's downwash velocity of flow detection instrument.

Background

Biological Safety Cabinets (BSC), also known as negative pressure filtration fume hoods, are used mainly to prevent operators and the environment from being exposed to bioaerosols generated during the experiment, and such devices need to be checked for their airflow rate and airflow pattern during use.

At present, when the air flow velocity and the air flow mode of a biological safety cabinet and a clean workbench are inspected, the distance is measured by an inspector on the working area table top of the biological safety cabinet by using a steel ruler according to the inspection standard requirement, the position of an inspection point is marked after line drawing, and then the inspection is carried out by using a fixed frame clamping anemograph with a clamping function. The hand is required to move the mounting bracket each time a point is inspected and then the next point is inspected, and then the inspection of the next inspection position is continued. However, when the inspector performs the measurement each time, the operator needs to manually measure the distance and draw the point each time, and there is an error at this time, thereby affecting the measurement result.

The utility model provides a technical scheme has solved the measurement personnel and has need range finding drawing point, causes the not accurate problem of measuring result.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a descending current velocity of flow detection instrument of array biosafety cabinet has solved the measurement personnel and has need the range finding to draw a little, causes the inaccurate problem of measuring result.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides an array biosafety cabinet's downdraft velocity of flow detects instrument, is including the mount that is used for fixed anemoscope, still including the location structure who is used for fixing a position the mount, location structure is including first locating rack and the second locating rack that forms sliding connection structure each other, be equipped with first slide rail on the first locating rack, the bottom sliding connection of mount is on first slide rail, the array is equipped with a plurality of location mouths on the first slide rail, be equipped with on the mount be used for with location mouth complex joint structure.

Adopt above-mentioned technical scheme, through setting up first locating rack and second locating rack, make the mount remove in the first slide rail on first locating rack, a plurality of location mouths have been seted up to the array on first slide rail, through the joint structure, make the mount slide when suitable position fix with the location mouth, detect afterwards, make the staff need not to carry out range finding in the biological safety cabinet and draw some measurements, avoid drawing some in-process and producing the error, make to measure more conveniently, it is more accurate.

The utility model discloses further set up to: the clamping structure comprises an elastic piece and a positioning piece, a first cavity is arranged at the bottom of the fixing frame, the positioning piece is connected with the inner wall of the first cavity through the elastic piece, and the elastic piece is used for pushing the positioning piece to be inserted into the positioning opening.

Adopt above-mentioned technical scheme, through setting up the joint structure, a plurality of location mouths have been seted up in display on first slide rail, and when the mount moved relevant position on first slide rail, the elastic component promoted the locating piece through the elasticity of self and inserted in the location mouth for the mount is fixed.

The utility model discloses further set up to: one side of the locating piece is fixedly connected with a pushing block, the pushing block extends out of the fixing block, and a sliding groove used for sliding of the pushing block is formed in the fixing block.

Adopt above-mentioned technical scheme, through setting up the ejector pad, promote the ejector pad and drive the locating piece and remove, when needs more change position, promote the ejector pad rebound, the elastic component receives external force to influence and produces deformation, drives the locating piece and keeps away from the location mouth, just can easily remove the mount this moment.

The utility model discloses further set up to: the push block is provided with anti-skid lines.

By adopting the technical scheme, the friction force is increased by arranging the anti-skidding lines, so that the push block is more convenient to move.

The utility model discloses further set up to: the first positioning frame is further provided with fixing rods, the fixing rods are fixedly connected to two ends of the first positioning frame, and the fixing rods are sleeved with the fixing frames.

By adopting the technical scheme, the fixing rod is arranged, and the fixing frame is sleeved on the fixing rod, so that the fixing frame can move more conveniently.

The utility model discloses further set up to: a sliding cavity is arranged in the second positioning frame, second sliding rails are arranged on the inner walls of the upper side and the lower side of the sliding cavity, a moving block in sliding connection with the sliding cavity is fixedly connected to one end of the first positioning frame, and a sliding block matched with the second sliding rails in a sliding mode is fixedly connected to the moving block.

By adopting the technical scheme, the first positioning frame can slide more than the second positioning frame by arranging the sliding cavity and the moving block, and the moving of the sliding block is more stable by arranging the second sliding rail and the sliding block, so that the moving of the first positioning frame is more stable.

The utility model discloses further set up to: the movable block is characterized in that a plurality of limiting structures used for fixing the movable block are arranged on the second positioning frame in an array mode, each limiting structure comprises an expansion spring and a pull rod, a through hole for the pull rod to penetrate through is formed in the second positioning frame, the pull rods are connected with the inner wall of the through hole through the expansion springs, a limiting hole matched with the pull rod is formed in the movable block, and the expansion springs are used for pushing the pull rod to be inserted into the limiting hole.

Adopt above-mentioned technical scheme, according to measuring standard, set up limit structure, through the pulling pull rod for the pull rod breaks away from spacing hole, expanding spring receives external force and influences and produces deformation, makes the pull rod break away from spacing hole, thereby can easily remove the movable block, when the movable block removes relevant position, loosens the pull rod, and expanding spring promotes the pull rod through the elasticity of self and inserts spacing downthehole, makes first locating rack and second locating rack fixed, makes the measurement more stable.

The utility model discloses further set up to: and anti-skid grains are arranged at one end of the pull rod extending out of the second positioning frame.

By adopting the technical scheme, the friction force is increased by arranging the anti-skidding lines, so that the pull rod is more convenient to pull.

To sum up, the utility model discloses following beneficial effect has:

through setting up first locating rack and second locating rack, make the mount remove in the first slide rail on first locating rack, a plurality of location mouths have been seted up to the array on first slide rail, through the joint structure, make the mount slide to fix with the location mouth when in the suitable position, detect afterwards, make the staff need not to carry out range finding in the biosafety cabinet and draw some measurements, avoid drawing some in-process and producing the error, make the measurement more convenient, it is more accurate.

Drawings

Fig. 1 is a schematic structural diagram of a downdraft flow velocity detection tool of an array type biosafety cabinet, which is mainly used for representing the external structure of the utility model;

FIG. 2 is a cross-sectional view of a descending air flow velocity detection tool of the array type biosafety cabinet, which is mainly used for representing the internal structure of the invention;

FIG. 3 is an enlarged view of portion A in FIG. 2, which is mainly used to show the internal structure of the fixing frame of the present invention;

fig. 4 is an enlarged view of a portion B in fig. 2, which is mainly used to show the internal structure of the second positioning frame of the present invention.

In the figure: 1. a fixed mount; 2. a first positioning frame; 3. a second positioning frame; 4. a first slide rail; 5. positioning the opening; 6. an elastic member; 7. positioning blocks; 8. a first chamber; 9. a push block; 10. a chute; 11. fixing the rod; 12. a slide chamber; 13. a second slide rail; 14. a moving block; 15. a slider; 16. a tension spring; 17. a pull rod; 18. a through hole; 19. and a limiting hole.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

A downdraft flow velocity detection tool of an array type biosafety cabinet is shown in figures 1-2 and comprises a fixing frame 1 for fixing an anemoscope and a positioning structure for positioning the fixing frame 1, wherein the positioning structure comprises a first positioning frame 2 and a second positioning frame 3 which form a sliding connection structure, and the fixing frame 1 is connected to the first positioning frame 2 in a sliding mode.

As shown in fig. 1-3, a first slide rail 4 is disposed on a first positioning frame 2, the bottom of the fixing frame 1 is slidably connected to the first slide rail 4, the fixing frame 1 is sleeved on a fixing rod 11, so that the fixing frame 1 can be moved more conveniently, a plurality of positioning ports 5 are disposed on the first slide rail 4 according to a measurement standard array, a clamping structure for matching with the positioning ports 5 is disposed on the fixing frame 1, the clamping structure includes an elastic member 6 and a positioning block 7, a first cavity 8 is disposed at the bottom of the fixing frame 1, the positioning block 7 is connected to an inner wall of the first cavity 8 through the elastic member 6, the elastic member 6 is used for pushing the positioning block 7 to be inserted into the positioning port 5, a push block 9 is fixedly connected to one side of the positioning block 7 and extends out of the fixing block, a sliding groove 10 for the push block 9 to slide is disposed on the fixing block, and an anti-slip pattern is disposed on the push block 9, the fixing rods 11 are connected to both ends of the first positioning frame 2 by screw threads.

As shown in fig. 2 and 4, a sliding cavity 12 is formed in the second positioning frame 3, a moving block 14 is integrally connected to the first positioning frame 2, the moving block 14 is inserted into the sliding cavity 12 to form a sliding connection structure, the inner walls of the upper side and the lower side of the sliding cavity 12 are both provided with a second sliding rail 13, a sliding block 15 which is matched with the second sliding rail 13 in a sliding way is welded on the moving block 14, and still install a plurality of limit structure according to measuring standard array on second locating rack 3, limit structure includes expanding spring 16 and pull rod 17, set up the through-hole 18 that supplies pull rod 17 to pass on the second locating rack 3, pull rod 17 passes through expanding spring 16 and the inner wall connection of through-hole 18, set up the spacing hole 19 with pull rod 17 matched with on the movable block 14, expanding spring 16 is used for promoting in pull rod 17 inserts spacing hole 19, the one end that pull rod 17 stretches out second locating rack 3 has seted up anti-skidding line, so that more convenient pulling pull rod 17.

The working principle is as follows: when in measurement, the first positioning frame 2 and the second positioning frame 3 are placed in a biological safety cabinet, according to the measurement standard, the positioning opening 5 is arranged on the first positioning frame 2 in an array manner, the limiting structure is arranged on the second positioning frame 3 in an array manner, the pull rod 17 is pulled, the pull rod 17 is separated from the limiting hole 19 by pulling the pull rod 17, the expansion spring 16 is influenced by external force to deform, the pull rod 17 is separated from the limiting hole 19, so that the moving block 14 can be easily moved, when the moving block 14 moves to a corresponding position, the pull rod 17 is loosened, the expansion spring 16 pushes the pull rod 17 to be inserted into the limiting hole 19 through the elasticity of the expansion spring 16, the first positioning frame 2 and the second positioning frame 3 are fixed, the push block 9 is pushed to drive the positioning block 7 to move, when the position needs to be changed, the push block 9 is pushed to move upwards, the elastic piece 6 is influenced by external force to deform, the positioning block 7 is driven to be far away, just can easily remove mount 1 this moment, when mount 1 removed the relevant position, unclamped ejector pad 9, elastic component 6 does not receive external force to influence, promotes locating piece 7 through the elasticity of self and inserts in locating hole 5 for mount 1 is fixed on first locating rack 2, makes and does not need surveyor's range finding drawing point also can measure, makes to measure more stably, and is more convenient.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an array biosafety cabinet's downwash velocity of flow detection instrument, includes mount (1) that is used for fixed anemoscope, its characterized in that: still including the location structure who is used for fixing a position mount (1), location structure is including first locating rack (2) and the second locating rack (3) that form sliding connection structure each other, be equipped with first slide rail (4) on first locating rack (2), the bottom sliding connection of mount (1) is on first slide rail (4), the array is equipped with a plurality of location mouthful (5) on first slide rail (4), be equipped with on mount (1) and be used for with location mouthful (5) complex joint structure.

2. The tool for detecting the descending airflow velocity of an array-type biosafety cabinet according to claim 1, wherein: the clamping structure comprises an elastic piece (6) and a positioning block (7), a first cavity (8) is arranged at the bottom of the fixing frame (1), the positioning block (7) is connected with the inner wall of the first cavity (8) through the elastic piece (6), and the elastic piece (6) is used for pushing the positioning block (7) to be inserted into the positioning opening (5).

3. The tool for detecting the descending airflow velocity of an array-type biosafety cabinet according to claim 2, wherein: one side fixedly connected with ejector pad (9) of locating piece (7), ejector pad (9) stretch out the fixed block, be equipped with on the fixed block and be used for gliding spout (10) of ejector pad (9).

4. The tool for detecting the descending airflow velocity of an array-type biosafety cabinet according to claim 3, wherein: the push block (9) is provided with anti-skid lines.

5. The tool for detecting the descending airflow velocity of an array-type biosafety cabinet according to claim 4, wherein: still be equipped with dead lever (11) on first locating rack (2), dead lever (11) fixed connection is at the both ends of first locating rack (2), mount (1) cover is established on dead lever (11).

6. The tool for detecting the descending airflow velocity of an array-type biosafety cabinet according to claim 1, wherein: a sliding cavity (12) is arranged in the second positioning frame (3), second sliding rails (13) are arranged on the inner walls of the upper side and the lower side of the sliding cavity (12), a moving block (14) which is connected with the sliding cavity (12) in a sliding mode is fixedly connected to one end of the first positioning frame (2), and a sliding block (15) which is matched with the second sliding rails (13) in a sliding mode is fixedly connected to the moving block (14).

7. The tool for detecting the descending airflow velocity of an array-type biosafety cabinet according to claim 6, wherein: the movable block is characterized in that a plurality of limiting structures used for fixing the movable block (14) are arranged on the second positioning frame (3) in an array mode and comprise telescopic springs (16) and pull rods (17), through holes (18) for the pull rods (17) to penetrate through are formed in the second positioning frame (3), the pull rods (17) are connected with the inner walls of the through holes (18) through the telescopic springs (16), limiting holes (19) matched with the pull rods (17) are formed in the movable block (14), and the telescopic springs (16) are used for pushing the pull rods (17) to be inserted into the limiting holes (19).

8. The tool for detecting the descending airflow velocity of an array-type biosafety cabinet according to claim 7, wherein: and anti-skid grains are arranged at one end of the pull rod (17) extending out of the second positioning frame (3).