CN210221437U - Auxiliary detection device for biological safety cabinet filter - Google Patents

Abstract

The utility model discloses a biological safety cabinet filter auxiliary detection device, including two parallel arrangement's longitudinal rail, and support two the gliding crossbeam of longitudinal rail can be followed on the longitudinal rail, crossbeam and longitudinal rail mutually perpendicular, the crossbeam upside has the photometer fixing base of vertical setting, and the photometer fixing base can be followed crossbeam length direction and slided. The integrity of the leakage detection of the high-efficiency filter of the biological safety cabinet can be improved, namely, the detection precision and the detection efficiency are improved, and meanwhile, the labor intensity of operators is reduced and misoperation is avoided.

Description

Auxiliary detection device for biological safety cabinet filter

Technical Field

The utility model relates to a biological detection equipment field, concretely relates to biosafety cabinet filter auxiliary detection device.

Background

According to the industry standard of the entry and exit inspection and quarantine of the people's republic of China: as mentioned in the biological safety cabinet use and management standard, the high-efficiency filter at the top of the safety cabinet needs to be periodically subjected to leak detection in the use process so as to ensure that the high-efficiency filter is in a normal working state.

Point out in the standard uses, among the air supply high efficiency filter leak hunting process, the photometer probe that uses should be apart from the position of the about 20mm of air supply face, scan the leak hunting, its scanning path is circuitous straight line, the comprehensive principle that covers, and should keep even scanning speed, and in current operation, rely on artifical handheld photometer to stretch into in the safety cabinet usually, and carry out artifical removal scanning behind the confirmed position roughly, the condition of speed inhomogeneous or hourglass inspection often appears, lead to the testing result inaccurate, and detection efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a biosafety cabinet filter auxiliary detection device to improve high efficiency filter's leak hunting efficiency, ensure the reliability of testing result simultaneously.

In order to achieve the above purpose, the utility model discloses technical scheme as follows:

the utility model provides a supplementary detection device of biological safety cabinet filter which the key lies in: including two parallel arrangement's longitudinal rail to and support two on the longitudinal rail and can follow the gliding crossbeam of longitudinal rail, crossbeam and longitudinal rail mutually perpendicular, the crossbeam upside has the photometer fixing base of vertical setting, the photometer fixing base can be followed crossbeam length direction and slided.

Structure more than adopting, during the leak hunting, place the device on the bottom plate of safety cabinet, and ensure that longitudinal rail and crossbeam remove the area of coverage and be greater than high efficiency filter's exit area, then fix the photometer on the photometer fixing base vertically, move the crossbeam to longitudinal rail's one end, then start the photometer and accomplish a horizontal line and detect thereupon, then with the crossbeam along longitudinal rail removal unit distance after, with the backward slip of photometer fixing base again, and it is reciprocal with this, can accomplish high efficiency filter's quick leak hunting, and because do not need direct handheld photometer, be favorable to reducing personnel's manipulation strength and personnel misoperation, be convenient for better control leak hunting speed simultaneously, leak hunting efficiency and precision are improved.

Preferably, the method comprises the following steps: the crossbeam includes at least one interlude, and the bottom of this interlude sets firmly has the drive dolly to the drive the crossbeam slides. By adopting the scheme, the driving trolley drives the beam to move, so that the moving scanning speed is controlled better, the leakage detection precision is further improved, and the labor intensity and errors of personnel operation are reduced.

Preferably, the method comprises the following steps: the crossbeam still includes left linkage segment and the right linkage segment that is located the interlude both ends respectively, the distal end of left linkage segment and right linkage segment has with corresponding longitudinal rail sliding fit's guide pulley A. By adopting the scheme, the size of most of biological safety cabinets can be met through the basic three-section structure, and the assembly is convenient.

Preferably, the method comprises the following steps: left side linkage segment and right linkage segment all are fixed with the interlude joint to the joint structure at interlude both ends adapts to each other. By adopting the scheme, the length of the cross beam can be extended through the middle section, and the size requirements of more biological safety cabinets can be met.

Preferably, the method comprises the following steps: the photometer fixing seat is movably supported on the cross beam through a guide rail trolley, and the guide rail trolley is in sliding fit with the cross beam and can drive the photometer fixing seat to slide along the length direction of the cross beam. Scheme more than adopting, drive the photometer fixing base through the guide rail dolly and slide, the lateral sliding speed of the automatic control photometer fixing base of being convenient for better, further improve leak hunting efficiency and precision promptly.

Preferably, the method comprises the following steps: the driving trolley and the guide rail trolley both adopt a mobile power supply structure. By adopting the mobile power supply, the limitation of the length of the power line can be avoided, the actual leakage detection area of the device is influenced, and the device is suitable for safety cabinets with more models.

Preferably, the method comprises the following steps: the photometer fixing seat comprises a vertical rod and a cross rod movably arranged on the vertical rod, and a clamping opening is formed in the end portion of the cross rod. Scheme more than adopting, accomplish through the centre gripping mouth and fix to the vertical centre gripping of photometer, and the horizontal pole activity sets up in the pole setting, can adjust its height as required, makes photometer and high efficiency filter's interval suitable.

Preferably, the method comprises the following steps: and the front end and the rear end of the longitudinal guide rail are respectively provided with a dovetail groove B and a wedge block B which are matched with each other. By adopting the scheme, the length of the longitudinal guide rail can be extended according to the requirement, so that the longitudinal guide rail is adaptive to high-efficiency filters with different longitudinal lengths.

Compared with the prior art, the beneficial effects of the utility model are that:

adopt the utility model provides a biological safety cabinet filter auxiliary detection device can improve the integrality of biological safety cabinet high efficiency filter leak hunting detection, improves detection precision and detection efficiency promptly, reduces operating personnel intensity of labour and avoids misoperation simultaneously.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an isometric view of FIG. 1;

FIG. 3 is a schematic diagram of a middle section;

FIG. 4 is a schematic view of the structure of the left connecting segment;

fig. 5 is a schematic diagram of a moving trace of a photometer during leak detection.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

Referring to fig. 1 to 4, the biosafety cabinet filter auxiliary detection device mainly includes two parallel and horizontally disposed longitudinal guide rails 1 and a cross beam 2 movably supported on the two longitudinal guide rails 1, as shown in fig. 1, two ends of the cross beam 2 are respectively in sliding fit with the two longitudinal guide rails 1, that is, the cross beam 2 can slide along the length direction of the longitudinal guide rails 1 to change the longitudinal position thereof, and the axial direction of the cross beam 2 is perpendicular to the axial direction of the longitudinal guide rails 1, and meanwhile, a photometer fixing seat 3 is movably disposed on the cross beam 2, that is, the photometer fixing seat 3 can move along the length direction of the cross beam 2 to change the transverse position thereof.

Referring to fig. 1 and 2, in this embodiment, the photometer fixing base 3 is movably supported on the cross beam 2 through a rail trolley 5, the upper portion of the cross beam 2 is provided with a guide rail a arranged along the length direction of the cross beam, the rail trolley 5 is provided with a rail wheel a in sliding fit with the guide rail a, meanwhile, the rail trolley 5 is provided with a mobile power supply a and a driving motor a, the driving motor a is connected with the rail wheel a through a transmission mechanism, the mobile power supply a is used for supplying power to the driving motor a, when the driving motor a works, the rail trolley 5 can move along the length direction of the cross beam 2, meanwhile, the transverse position of the photometer fixing base 3 is changed, the moving speed of the rail trolley 5 is adjustable, and common modes such as gear switch adjustment or remote control adjustment in the market.

As shown in the figure, photometer fixing base 3's structure is similar with the structure of beaker iron stand, its pole setting 30 that mainly includes vertical setting, and the horizontal pole 31 that the level set up, horizontal pole 31 is still just setting up with crossbeam 2 from top to bottom simultaneously, locking hoop 300 and pole setting 30 fixed connection are passed through to the one end of horizontal pole 31, and after locking hoop 300 loosens, the high position of adjustable horizontal pole 31, establish high mark in the pole setting 30, can acquire the high position of horizontal pole 31 fast, the one end that pole setting 30 was kept away from to horizontal pole 31 has centre gripping mouth 32, the mouth opening size of centre gripping mouth 32 is adjustable, with the grab handle that is used for the fixed photometer of centre gripping.

The bottom of the crossbeam 2 is provided with a driving trolley 4, the driving trolley 4 is fixedly connected with the crossbeam 2, the driving trolley is mainly used for driving the crossbeam 2 to move along the length direction of the longitudinal guide rail 1, the structure of the driving trolley is similar to that of the guide rail trolley 5, a power supply driving structure of a mobile power supply is also adopted, and the wheels of the driving trolley can be common rollers.

In the application, in order to make the lengths of the longitudinal guide rails 1 and the cross beams 2 adapt to different types of biosafety cabinets, both the longitudinal guide rails 1 and the cross beams 2 are arranged to be of extensible structures, as shown in fig. 1 and 2, the front ends and the rear ends of the longitudinal guide rails 1 are provided with the extensible structures B matched with each other, the extensible structures B mainly comprise dovetail grooves B10 and wedge blocks B11 which are respectively arranged at the front end and the rear end of the longitudinal guide rails 1, when the length of a single longitudinal guide rail 1 is insufficient, two or more longitudinal guide rails 1 can be connected, and the wedge block B11 of the rear longitudinal guide rail 1 is embedded into the dovetail groove B10 of the front wedge block B11.

Meanwhile, in order to ensure the connection reliability, the wedge block B11 is arranged at the lower side of the longitudinal guide rail 1, namely, is flush with the lower surface of the longitudinal guide rail 1, the wedge block B11 protrudes outwards along the length direction of the longitudinal guide rail 1, the far end of the wedge block is wider than the near end of the wedge block, and meanwhile, the longitudinal guide rail 1 is provided with length dimension marks so as to better observe or control the moving distance of the cross beam 2 in the longitudinal direction.

The upper portion of longitudinal rail 1 has the guide rail B who sets up along its length direction, and the both ends of crossbeam 2 are equipped with respectively and correspond guide rail B complex rail wheel B2 d, and to crossbeam 2's structure, this application gives three kinds of different implementation structures, and first structure is only a interlude 20, corresponding driving trolley 4 and interlude 20 fixed connection, and two rail wheel B2 d are located the both ends of interlude 20 respectively.

The second structure comprises a middle section 20, a left connecting section 21 and a right connecting section 22 which are positioned at the left end and the right end of the middle section 20, the left connecting section 21 is connected with the middle section 20, the middle section 20 is connected with the right connecting section 22, as shown in the figure, the upper sides of the two ends of the middle section 20 are provided with dovetail grooves A2B, the openings of the dovetail grooves A2B face upwards, the end parts of the dovetail grooves are open, the right end of the corresponding left connecting section 21 is correspondingly arranged, the left end of the right connecting section 22 is provided with a wedge block A2c matched with the corresponding dovetail groove A2B, the structure of the wedge block A2c is similar to that of the wedge block B11, and the bottoms of the left end of the left connecting section 21 and the right end of the right connecting section 22 are provided with rail wheels B2 d matched with the guide rails B.

The third kind of structure includes a plurality of interlude 20 to and the left linkage segment 21 and the right linkage segment 22 at both ends, and left linkage segment 21 and right linkage segment 22 are fixed with 20 joints of adjacent interlude, and the joint structure at interlude 20 both ends matches each other simultaneously, enough becomes extension structure A for a plurality of interlude 20 can be fixed by the joint each other, thereby realize the unlimited extension of crossbeam 20 length, drive dolly 4 and be in the 20 fixed connection of interlude at 2 middle parts of crossbeam.

Of course, the beam 2 may also be subjected to size marking to determine the lateral movement displacement length of the rail trolley 5, and the movement speed of the rail trolley 5 is also conveniently adjusted to meet the detection regulations.

Referring to fig. 1-5, in accordance with the inspection requirements, a leak detection scan trace 7 is shown in fig. 5. for the purpose of full coverage, the scan trace 7 is comprised of a plurality of transverse scan segments 70 and linear motion segments 71 connected in a straight "S" configuration, with the length of the linear motion segments 71 being less than twice the width of the photometric probe.

During the use at first according to waiting to examine the wind gap size of waiting to examine biological safety counter and going up high efficiency filter, confirm the length of longitudinal rail 1 and crossbeam 2 to accomplish its equipment after, put to biological safety counter, it is fixed with the vertical centre gripping of photometer through centre gripping mouth 32, the photometer probe is vertical upwards, adjustment photometer probe position is parallel with longitudinal rail 1, and the position of adjustment crossbeam 2 and guide rail dolly 5 ensures that the photometer is located initial position 7a department of removal orbit 7.

And then adjusting the moving speed gear of the guide rail trolley 5 to enable the guide rail trolley 5 to slide along the length direction of the cross beam 2 at a constant speed, sliding from one end of the cross beam 2 to the other end to complete a transverse scanning section 70, then controlling the driving trolley 4 to move to enable the cross beam 2 to integrally move forwards for a certain distance, wherein the distance is smaller than the width of a probe of a photometer, so as to ensure that a missed detection area cannot appear when the photometer transversely scans again, locking the driving trolley 4, controlling the guide rail trolley 5 again to enable the guide rail trolley 5 to move reversely, completing track scanning of another transverse scanning section 70, repeating the steps until the probe of the photometer finally reaches a termination position 7b, and completing the leak detection of the whole high.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims (8)

1. The utility model provides a supplementary detection device of biological safety cabinet filter which characterized in that: longitudinal rail (1) including two parallel arrangement to and support two on longitudinal rail (1) and can follow gliding crossbeam (2) of longitudinal rail (1), crossbeam (2) and longitudinal rail (1) mutually perpendicular, crossbeam (2) upside has photometer fixing base (3) of vertical setting, photometer fixing base (3) can be followed crossbeam (2) length direction and slided.

2. The biosafety cabinet filter-aided detection device of claim 1, wherein: the cross beam (2) comprises at least one middle section (20), and a driving trolley (4) is fixedly arranged at the bottom of the middle section (20) to drive the cross beam (2) to slide.

3. The biosafety cabinet filter auxiliary detection device according to claim 2, wherein: crossbeam (2) still including being located left linkage segment (21) and right linkage segment (22) at interlude (20) both ends respectively, the distal end of left linkage segment (21) and right linkage segment (22) has with corresponding longitudinal rail (1) sliding fit's guide pulley A (2 a).

4. The biosafety cabinet filter auxiliary detection device according to claim 3, wherein: left side linkage segment (21) and right linkage segment (22) all are fixed with interlude (20) joint to the joint structure at interlude (20) both ends adapts to each other.

5. The biosafety cabinet filter auxiliary detection device according to any one of claims 2 to 4, wherein: photometer fixing base (3) pass through guide rail dolly (5) activity support in on crossbeam (2), guide rail dolly (5) and crossbeam (2) sliding fit to can drive photometer fixing base (3) slide along the length direction of crossbeam (2).

6. The biosafety cabinet filter auxiliary detection device according to claim 5, wherein: the driving trolley (4) and the guide rail trolley (5) both adopt a power supply structure of a mobile power supply.

7. The biosafety cabinet filter auxiliary detection device according to any one of claims 1 to 4, characterized in that: photometer fixing base (3) are including pole setting (30) to and activity set up horizontal pole (31) on this pole setting (30), horizontal pole (31) tip has centre gripping mouth (32).

8. The biosafety cabinet filter-aided detection device of claim 1, wherein: the front end and the rear end of the longitudinal guide rail (1) are respectively provided with a dovetail groove B (10) and a wedge block B (11) which are matched with each other.

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