Biological safety cabinet detection device

Abstract

The utility model discloses a biosafety cabinet detection device which comprises a first fixing support, a fixing support is fixedly connected to the top end of the first fixing support, connecting frames are fixedly installed at the top end and the bottom end of the fixing support, and a second fixing plate is fixedly installed at the top end of the front side of the fixing support. The front side of the second fixing plate is connected with a connecting plate through a bolt, a threaded hole is formed in the connecting plate, the front side of the connecting plate is fixedly connected with a loading device, the end, away from the connecting plate, of the loading device is connected with a force measuring assembly, and a horizontal support is installed in the middle of the front side of the fixing support. A safety cabinet body is arranged on the front side of the fixing support. The biological safety cabinet detection device is stable in overall structure, reliable in detection precision and convenient to carry, force in the horizontal direction and the vertical direction can be quantitatively applied, the distance between the horizontal support and the safety cabinet body can be conveniently adjusted, and safety cabinet bodies of different specifications can be conveniently detected.

Description

Technical Field

[0001] The utility model relates to the technical field of biological safety cabinet detection devices, in particular to a biological safety cabinet detection device. Background Art

[0002] As people's awareness of biosafety continues to improve, the use of biosafety cabinets is becoming more and more widespread. During use, biosafety cabinets can protect the safety of personnel, experimental materials and the environment. In order to avoid biological hazards, the quality inspection of biosafety cabinets is particularly important. During the stability inspection of biosafety cabinets, loads of 12kg and 110kg need to be loaded. Using weights for loading is inconvenient, and using other loading methods requires a specific biosafety cabinet inspection device.

[0003] Referring to Chinese patent authorization publication number CN217877777U, with an authorization publication date of November 22, 2022, a biosafety cabinet quality inspection device is disclosed, which mainly includes a host, a sampler, an interference cylinder, a first bracket, a second bracket, etc. The host is detachably placed on the first bracket, a first fixing mechanism is provided between the host and the first bracket, the second bracket is detachably mounted on the host, a second fixing mechanism is provided between the host and the second bracket, multiple samplers are provided on the second bracket, and the interference cylinder is detachably mounted on the second bracket. The interference cylinder is retractable. The biosafety cabinet quality inspection device is easy to store and can be packaged and transported using a single packaging box, while also enabling convenient installation.

[0004] However, the overall structure of the existing biosafety cabinet detection device is unstable, and the wheels are prone to slight movement, resulting in large errors in the detection results; therefore, we propose a biosafety cabinet detection device to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a biosafety cabinet detection device to solve the problem in the above background art that the overall structure of the existing biosafety cabinet detection device is unstable and the wheels are prone to slight movement, which leads to large errors in the detection results.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A biological safety cabinet detection device, comprising a first fixed support, the top of the first fixed support is fixedly connected to a fixed bracket, the top and bottom ends of the fixed bracket are fixedly installed with a connecting bracket, a wall column is provided in the connecting bracket, a second fixed plate is fixedly installed on the top of the front side of the fixed support, the front side of the second fixed plate is connected to the connecting plate by bolts, a threaded hole is provided in the connecting plate, a loading device is fixedly connected to the front side of the connecting plate, the end of the loading device away from the connecting plate is connected to a force measuring assembly, a horizontal bracket is installed in the middle of the front side of the fixed support, a safety cabinet body is provided on the front side of the fixed support, the bottom of the safety cabinet body is connected to the second fixed support by a connecting block and bolts, and a displacement detection device is provided at the end of the safety cabinet body away from the fixed support.

[0007] Preferably, the connecting frame includes a frame body, a fixing screw and a pad, the frame body is fixedly installed on the top and bottom ends of the fixing bracket, threaded holes are opened on the left and right sides of the frame body, and the fixing screws are threadedly connected in the threaded holes.

[0008] Preferably, a pad is fixedly connected to the inner side of the fixing screw, and a wall column is provided on the inner side of the pad.

[0009] Preferably, the horizontal bracket includes a first loading frame, a first fixed plate and a second loading frame, the second loading frame is fixedly connected to the left and right sides of the fixed bracket, the end of the second loading frame away from the fixed bracket is connected to the first loading frame, and the end of the first loading frame away from the second loading frame is fixedly installed with the first fixed plate.

[0010] Preferably, the first loading frame, the first fixing plate and the second loading frame are each provided with a plurality of pairs of threaded holes.

[0011] Preferably, a plurality of pairs of threaded holes are provided in the first fixing support, the second fixing support and the second fixing plate.

[0012] Compared with the existing technology, the beneficial effects of the present invention are: the overall structure of the biological safety cabinet detection device is stable, the detection accuracy is reliable, it is easy to carry, it can quantitatively apply horizontal and vertical forces, it is convenient to adjust the distance between the horizontal bracket and the safety cabinet body, and it is convenient to detect safety cabinet bodies of different specifications.

[0013] 1. A first fixing support, a fixing bracket, a connecting bracket, a second fixing support, and a connecting block are provided. The fixing brackets are connected with bolts. The displacement detection device is an independent device connected by a support rod, making the device light and easy to carry. The fixing bracket is firmly connected to the wall column by the connecting bracket, thereby improving the overall stability of the force measuring device.

[0014] Furthermore, the second fixing support is fixed to the safety cabinet body by means of a connecting block and bolts, and the first fixing support is fixed to the second fixing support by means of bolts, thereby connecting the fixing support and the safety cabinet body, thereby improving the detection accuracy;

[0015] 2. A second fixing plate and a horizontal bracket are provided. The second fixing plate is fixedly installed on the top of the front side of the fixing bracket. The force measuring direction of the force measuring component is aligned with the side of the safety cabinet body. The force measuring component can apply force to the safety cabinet body. A displacement detection device is provided on the other side of the safety cabinet body to record the displacement data, so that the force measuring component can perform horizontal detection of the safety cabinet body.

[0016] Furthermore, a horizontal bracket is installed in the middle of the fixed bracket, and the connecting plate is connected to the first fixed plate using bolts, and is connected to the top or bottom end of the first fixed plate, so that the force measuring component can measure the horizontal plate inside the safety cabinet;

[0017] 3. Threaded holes are provided. Multiple pairs of threaded holes are provided in the second fixing plate, the first loading frame, the first fixing plate, the second loading frame, the first fixing support and the second fixing support. The corresponding threaded holes are selected for connection according to the specifications of the safety cabinet body and the position to be detected, so as to facilitate the detection of safety cabinet bodies 11 of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the first three-dimensional structure of the force measuring device of the utility model;

[0019] Figure 2 This is a second three-dimensional structural diagram of the force measuring device of the present invention;

[0020] Figure 3 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the force measuring component and the safety cabinet body of the utility model;

[0022] Figure 5 This is a schematic diagram of the level detection structure of the utility model.

[0023] In the figure: 1. First fixed support; 2. Fixed bracket; 3. Connecting frame; 301. Frame body; 302. Fixed screw; 303. Pad; 4. Horizontal bracket; 401. First loading frame; 402. First fixed plate; 403. Second loading frame; 5. Threaded hole; 6. Second fixed plate; 7. Connecting plate; 8. Loading device; 9. Force measuring assembly; 10. Displacement detection device; 11. Safety cabinet body; 12. Wall column; 13. Second fixed support; 14. Connecting block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 5 , the utility model provides the following technical solutions:

[0026] Example 1: The existing biosafety cabinet detection device has an unstable structure, low detection accuracy, and is inconvenient to carry. To solve this technical problem, this embodiment discloses the following technical content:

[0027] A biological safety cabinet detection device includes a first fixed support 1, the top of the first fixed support 1 is fixedly connected to a fixed bracket 2, the top and bottom of the fixed bracket 2 are fixedly installed with a connecting bracket 3, the top of the first fixed support 1 is fixedly connected to the fixed bracket 2, the top and bottom of the fixed bracket 2 are fixedly installed with the connecting bracket 3, a wall column 12 is arranged in the connecting bracket 3, a second fixed plate 6 is fixedly installed on the top of the front side of the fixed bracket 2, the front side of the second fixed plate 6 is connected to a connecting plate 7 by bolts, a threaded hole 5 is provided in the connecting plate 7, a loading device 8 is fixedly connected to the front side of the connecting plate 7, the end of the loading device 8 away from the connecting plate 7 is connected to a force measuring component 9, a horizontal support 4 is installed in the middle of the front side of the fixed bracket 2, a safety cabinet cabinet 11 is arranged on the front side of the fixed bracket 2, the bottom of the safety cabinet cabinet 11 is connected to the second fixed support 13 by a connecting block 14 and bolts, and a displacement detection device 10 is arranged on the end of the safety cabinet cabinet 11 away from the fixed bracket 2.

[0028] like Figure 1-Figure 5 As shown, the force measuring device as a whole is connected by a fixed bracket 2 and a bolt. The displacement detection device 10 is an independent device, which is connected by a support rod, so that the device is light in weight and easy to carry. The fixed bracket 2 is connected to the wall column 12 by a connecting frame 3. The connecting frame 3 includes a frame body 301, a fixing screw 302 and a pad 303. The frame body 301 is fixedly installed at the top and bottom of the fixed bracket 2. Threaded holes 5 are opened on the left and right sides of the frame body 301. The fixing screw 302 is threadedly connected to the threaded hole 5. , a pad 303 is fixedly connected to the inner side of the fixing screw 302, and the pad 303 is aligned with the wall column 12, so that a part of the wall column 12 is located between the pads 303 on both sides, and the fixing screw 302 is manually rotated toward the wall column 12. The fixing screw 302 drives the pad 303 to move toward the wall column 12, so that the pads 303 on both sides are against the wall column 12, and the same operation is performed on the upper and lower ends, so that the fixing bracket 2 is fixed to the outside of the wall column 12, thereby improving the overall stability of the force measuring device;

[0029] The top of the second fixing support 13 is provided with multiple pairs of threaded holes 5 on the left and right sides. The top of the second fixing support 13 is provided with a safety cabinet body 11. The connecting block 14 is an "L"-shaped plate. The threaded holes 5 are provided in the horizontal rod and the vertical rod. The connecting block 14 is fixed to the top of the second fixing support 13 through the threaded holes 5 by bolts, and is provided on the left and right sides of the supporting legs of the safety cabinet body 11. The top of the vertical rod is connected with bolts to fix the safety cabinet body 11. The bottom of the fixing bracket 2 is fixedly connected to the first fixing bracket 1. The front and rear ends of the rod on the front side of the first fixing bracket 1 and the front and rear ends of the second fixing bracket 13 are provided with threaded holes 5. The required position is adjusted, the threaded holes 5 of the first fixing bracket 1 and the second fixing bracket 13 are aligned, and fixed with bolts to connect the fixing bracket 2 and the safety cabinet body 11, thereby improving the detection accuracy;

[0030] Example 2: The existing biosafety cabinet detection device is not convenient for quantitatively applying horizontal and vertical forces. To solve this technical problem, this embodiment discloses the following technical content:

[0031] like Figure 1-Figure 5 As shown, a second fixing plate 6 is fixedly installed on the top front side of the fixing bracket 2, and a connecting plate 7 is connected to the front side of the second fixing plate 6 by bolts. A loading device 8 is fixedly connected to the front side of the connecting plate 7, and a force measuring component 9 is fixedly connected to the end of the loading device 8 away from the connecting plate 7. The force measuring direction of the force measuring component 9 is aligned with the side of the safety cabinet body 11. The force measuring component 9 can apply force to the safety cabinet body 11. A displacement detection device 10 is provided on the other side of the safety cabinet body 11 to record the displacement data so that the force measuring component 9 can perform a horizontal detection on the safety cabinet body 11;

[0032] A horizontal bracket 4 is installed in the middle of the fixed bracket 2. The horizontal bracket 4 includes a first loading frame 401, a first fixing plate 402, and a second loading frame 403. The second loading frame 403 is fixedly connected to the left and right sides of the fixed bracket 2. The end of the second loading frame 403 away from the fixed bracket 2 is connected to the first loading frame 401, and the end of the first loading frame 401 away from the second loading frame 403 is fixedly installed with the first fixing plate 402. When performing a vertical test on the safety cabinet body 11, the bolts of the second fixing plate 6 and the connecting plate 7 are unscrewed, the connecting plate 7 is removed, and the connecting plate 7 is connected to the first fixing plate 402 with bolts. The connecting plate 7 is connected to the top or bottom end of the first fixing plate 402, so that the force measuring component 9 can detect the horizontal plate of the safety cabinet body 11, thereby performing a vertical test;

[0033] Embodiment 3: The technical content disclosed in this embodiment is a further improvement based on the above-mentioned embodiment 1. The existing biological safety cabinet detection device is not convenient for adjusting the distance between the horizontal support 4 and the safety cabinet cabinet 11, and is not convenient for detecting safety cabinet cabinets 11 of different specifications. To solve this technical problem, this embodiment discloses the following technical content:

[0034] like Figure 1-Figure 5 As shown, multiple pairs of threaded holes 5 are provided in the second fixing plate 6, the first loading frame 401, the first fixing plate 402, the second loading frame 403, the first fixing support 1 and the second fixing support 13. The threaded holes 5 of the second fixing plate 6 can adjust the height of the force measuring component 9. According to the height of the safety cabinet body 11 and the height to be detected, the threaded holes 5 of the connecting plate 7 are aligned with the threaded holes 5 of the corresponding height on the second fixing plate 6. The threaded holes 5 of the first loading frame 401 and the second loading frame 403 can adjust the length of the force measuring component 9. According to the height of the safety cabinet body 11 and the height to be detected, the threaded holes 5 of the connecting plate 7 are aligned with the threaded holes 5 of the corresponding height on the second fixing plate 6. Align the threaded holes 5 of corresponding lengths on the first loading frame 401 and the second loading frame 403. The threaded holes 5 of the first fixing plate 402 can be used to fine-tune the position of the force measuring assembly 9. According to the specifications of the safety cabinet body 11 and the position to be tested, align the threaded holes 5 of the connecting plate 7 with the threaded holes 5 at the corresponding positions on the first fixing plate 402. The threaded holes 5 of the first fixing support 1 and the second fixing support 13 can fix safety cabinet bodies 11 of different specifications. The above are all fixed by bolts, which facilitates the testing of safety cabinet bodies 11 of different specifications.

[0035] Working Principle: After adjusting and fixing according to the above-mentioned embodiments 1, 2, and 3, the anti-deformation test of the safety cabinet body 11 is carried out. The load device 8 is used to load the force measuring component 9 with 110kg, so that the top back of the safety cabinet body 11 is subjected to an external force of 110kg. The deformation displacement of the top front is measured using the dial micrometer of the displacement detection device 10. The direction of the safety cabinet body 11 is changed and fixed, and the same operation is performed on the other side. The displacement detection device 10 measures the data that should not exceed 2mm. If it exceeds 2mm, it is unqualified.

[0036] Change the direction of the safety cabinet body 11 and the position of the force measuring component 9 and fix them, and perform an anti-deformation test on its work surface. Measure the distance from the center of the front edge of the work surface to the ground. Use the force measuring component 9 to apply a 23kg pressure to the center of the work surface. After unloading the pressure, measure the distance from the center of the front edge of the work surface to the ground again. Compare the before and after data. If the data changes, it means that the work surface has permanent deformation and is unqualified. If the data changes, it is qualified.

[0037] Change the position of the force measuring component 9 and fix it, apply a force of 11 kg to the front edge of the front window operating port of the safety cabinet body 11, and measure the distance between the rear bottom of the safety cabinet body 11 and the ground. If the distance between the rear bottom of the safety cabinet body 11 and the ground exceeds 2 mm, it is unqualified; otherwise, it is qualified.

[0038] The above completes a series of operations of the biosafety cabinet detection device. Contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0039] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A biosafety cabinet detection device, comprising a first fixing support (1), characterized in that: The top of the first fixing support (1) is fixedly connected to a fixing bracket (2), the top and bottom of the fixing bracket (2) are fixedly installed with a connecting bracket (3), a wall column (12) is arranged in the connecting bracket (3), a second fixing plate (6) is fixedly installed on the top of the front side of the fixing bracket (2), the front side of the second fixing plate (6) is connected to a connecting plate (7) by bolts, a threaded hole (5) is provided in the connecting plate (7), a loading device (8) is fixedly connected to the front side of the connecting plate (7), the end of the loading device (8) away from the connecting plate (7) is connected to a force measuring assembly (9), a horizontal bracket (4) is installed in the middle of the front side of the fixing bracket (2), a safety cabinet body (11) is arranged on the front side of the fixing bracket (2), the bottom of the safety cabinet body (11) is connected to the second fixing support (13) by a connecting block (14) and bolts, and a displacement detection device (10) is arranged on the end of the safety cabinet body (11) away from the fixing bracket (2).

2. A biosafety cabinet detection device according to claim 1, characterized in that: The connecting frame (3) comprises a frame body (301), a fixing screw (302) and a pad (303); the frame body (301) is fixedly mounted on the top and bottom ends of the fixing bracket (2); threaded holes (5) are provided on the left and right sides of the frame body (301); the fixing screw (302) is threadedly connected to the threaded holes (5).

3. A biosafety cabinet detection device according to claim 2, characterized in that: A backing plate (303) is fixedly connected to the inner side of the fixing screw (302), and a wall column (12) is provided on the inner side of the backing plate (303).

4. A biosafety cabinet detection device according to claim 1, characterized in that: The horizontal support (4) comprises a first loading frame (401), a first fixing plate (402) and a second loading frame (403), wherein the second loading frame (403) is fixedly connected to the left and right sides of the fixing support (2), an end of the second loading frame (403) away from the fixing support (2) is connected to the first loading frame (401), and an end of the first loading frame (401) away from the second loading frame (403) is fixedly installed with the first fixing plate (402).

5. A biosafety cabinet detection device according to claim 4, characterized in that: Multiple pairs of threaded holes (5) are provided in the first loading frame (401), the first fixing plate (402) and the second loading frame (403).

6. A biosafety cabinet detection device according to claim 1, characterized in that: Multiple pairs of threaded holes (5) are provided in the first fixing support (1), the second fixing support (13) and the second fixing plate (6).

Images