Safety cabinet with high safety

By introducing a gas disturbance prevention mechanism and a real-time monitoring system into the biosafety cabinet, the problem of harmful gas escape caused by gas disturbance was solved, and the stability of the gas inside the cabinet and the accuracy of experimental results were achieved.

CN223915432UActive Publication Date: 2026-02-17DONGGUAN BINHAI BAY CENT HOSPITAL
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Patent Information

Application Number
CN202520500928.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-02-17
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

Existing biosafety cabinets lack mechanisms to prevent internal gas disturbances, which could lead to the escape of harmful gases or the spread of contaminants, affecting the accuracy of experimental results and the health of personnel.

Method used

A gas disturbance prevention mechanism was designed, including components such as telescopic rods, fixed truncated cones, square fixing blocks, hollow curved columns, and springs. By limiting the range of motion of the operator's arms, the gas inside the cabinet is kept stable, and an airflow detection display and temperature control knob are provided for real-time monitoring and adjustment.

Benefits of technology

It effectively prevents harmful gases from escaping, reduces the risk of inhalation for laboratory personnel, and improves the accuracy and safety of experimental results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of safety cabinets, and discloses a safety cabinet with high safety, which comprises a shell mechanism, a support frame and two gas disorder prevention mechanisms, one end of a telescopic rod close to the shell mechanism is fixedly connected with a fixed circular truncated cone, the other end of the telescopic rod is fixedly connected with a square fixed block, and the surface of the fixed circular truncated cone is fixedly connected with four second springs. First springs are fixedly connected to the bottom faces of the four hollow curved opening columns, connecting blocks are fixedly connected to one ends of the four first springs, curved surface fixing blocks are fixedly connected to one ends of the four connecting columns, and the four second springs are fixedly connected to the interior of the trapezoidal shell. According to the safety cabinet, when an operator uses the safety cabinet, the hands of the operator are inserted into the two rubber gloves, so that the hands of the operator can flexibly move, and the swinging amplitude of the hands during operation is greatly reduced, so that gas in the safety cabinet is in a stable state, and the risks that an experimenter inhales harmful gas and the external environment is polluted are reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the safety cabinet field especially safety cabinet of high security. BACKGROUND

[0002] When the experiment personnel is doing the experiment in the laboratory, infectious aerosol and splash may be produced in the experiment operation process, which is extremely harmful to the health of the body, therefore the experiment personnel needs to be protected by the biosafety cabinet with high security, the biosafety cabinet is a protective equipment for protecting the experiment personnel, laboratory environment and experimental sample from the harm of biological hazardous substances, the biosafety cabinet can effectively prevent the spread and diffusion of biological hazardous substances and reduce the risk of the experiment personnel contacting pathogenic bacteria.

[0003] Most of the existing biosafety cabinets do not have the mechanism for preventing internal gas turbulence, and unstable airflow may cause pollutants to enter the biosafety cabinet from the outside or the internal pollutants to escape to the external environment, thereby increasing the risk of the experiment personnel inhaling toxic gas and the external environment being contaminated, without the mechanism for preventing internal gas turbulence, the gas in the biosafety cabinet may be disturbed by external factors, and the instability of the gas may also affect the experimental conditions, resulting in the decrease of the accuracy and reliability of the experimental results.

[0004] Therefore, the technical personnel in the art provides a safety cabinet with high security to solve the problems in the background art. CONTENT OF THE UTILITY MODEL

[0005] The utility model discloses a safety cabinet with high security, which can effectively prevent the harmful gas or aerosol from escaping to the outside due to the internal gas turbulence caused by the excessive operation range of the experiment personnel, thereby protecting the operating personnel and the external environment.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A safety cabinet with high security, comprising a shell mechanism, a support frame, two gas turbulence prevention mechanisms, the gas turbulence prevention mechanism comprises a telescopic rod, one end of the telescopic rod close to the shell mechanism is fixedly connected with a fixed circular table, the other end is fixedly connected with a square fixed block, the surface of the fixed circular table is fixedly connected with four No.

[0008] Further, the shell mechanism comprises a trapezoidal shell, a first connecting plate is fixedly connected to the front side of the trapezoidal shell, and a second connecting plate is fixedly connected to the lower end surface of the first connecting plate.

[0009] Further, the second connecting plate is fixedly connected to the front side of the trapezoidal shell, airflow detection displays, temperature displays and temperature adjusting knobs are fixedly connected to the front side of the second connecting plate, and a first groove is formed in the lower position of the inside of the two sides of the trapezoidal shell.

[0010] Further, the second connecting plate is fixedly connected to the front side of the trapezoidal shell, airflow detection displays, temperature displays and temperature adjusting knobs are fixedly connected to the front side of the second connecting plate, and a first groove is formed in the lower position of the inside of the two sides of the trapezoidal shell.

[0011] Further, the second connecting plate is fixedly connected to the front side of the trapezoidal shell, airflow detection displays, temperature displays and temperature adjusting knobs are fixedly connected to the front side of the second connecting plate, and a first groove is formed in the lower position of the inside of the two sides of the trapezoidal shell.

[0012] Further, the second connecting plate is fixedly connected to the front side of the trapezoidal shell, airflow detection displays, temperature displays and temperature adjusting knobs are fixedly connected to the front side of the second connecting plate, and a first groove is formed in the lower position of the inside of the two sides of the trapezoidal shell.

[0013] Further, the second connecting plate is fixedly connected to the front side of the trapezoidal shell, airflow detection displays, temperature displays and temperature adjusting knobs are fixedly connected to the front side of the second connecting plate, and a first groove is formed in the lower position of the inside of the two sides of the trapezoidal shell.

[0014] The utility model has the advantages of the following beneficial effects:

[0015] 1. The safety cabinet with high safety degree, when the operator uses the safety cabinet, inserts hands into the two rubber gloves, avoids the contact between the limbs and the gas in the cabinet, then inserts the hands into the fixed block, the hollow curved mouth connecting column is internally provided with the spring, one end of the connecting column is fixedly connected with the curved fixed block, the fixed circular table is clamped in the trapezoidal shell and is fixedly connected with the four second springs on the fixed circular table, so that the hands of the operator can be flexibly moved while the operation range is reduced, so that the gas in the safety cabinet is in a stable state, and the risk of inhaling harmful gas and the risk of the external environment being polluted are greatly reduced.

[0016] 2. The safety cabinet with high safety degree, the airflow detection displays, the temperature displays and the temperature adjusting knobs are arranged on the second connecting plate, so that the flow rate and the temperature of the gas in the trapezoidal shell are monitored in real time, the temperature adjusting knobs can be used to adjust the gas in the trapezoidal shell when the temperature is too high or too low, so that the experimental results are more accurate and more persuasive. DRAWINGS

[0017] Figure 1 It is the front view schematic diagram of the utility model;

[0018] Figure 2 It is the side view schematic diagram of the utility model;

[0019] Figure 3 It is the shell mechanism axial side schematic diagram of the utility model;

[0020] Figure 4 It is the Figure 3 Enlarged schematic diagram of A in the utility model;

[0021] Figure 5 It is the Figure 3 Enlarged schematic diagram of B in the utility model;

[0022] Figure 6 It is the glass plate axial side schematic diagram of the utility model;

[0023] Figure 7 It is the gas disorder prevention mechanism axial side schematic diagram of the utility model;

[0024] Figure 8 It is the hollow curved mouth column sectional view schematic diagram of the utility model;

[0025] Figure 9 It is the square fixed block axial side schematic diagram of the utility model.

[0026] Legend:

[0027] 1, shell mechanism, 2, support frame, 3, gas disorder prevention mechanism, 101, trapezoidal shell, 102, No. 1 connecting plate, 103, No. 2 connecting plate, 104, air flow detection display, 105, temperature display, 106, temperature knob, 107, No. 1 recess, 108, No. 2 recess, 109, No. 1 round hole, 110, gas purifier, 111, object slot, 112, hook, 113, glass plate, 114, rubber glove, 115, handle, 301, telescopic rod, 302, square fixed block, 303, hollow curved mouth column, 304, connecting column, 305, curved surface fixed block, 306, No. 1 spring, 307, connecting block, 308, fixed circular table, 309, No. 2 spring, 310, No. 2 round hole. DETAILED DESCRIPTION

[0028] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0029] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application. Figures 7-9 The present application provides an embodiment:

[0030] The safe cabinet has high safety, and comprises a shell mechanism 1, a support frame 2 and two gas turbulence prevention mechanisms 3.

[0031] Specifically, the arms of the experimenter can move left and right during operation by fixing the square fixed block 302 to the telescopic rod 301, the arms of the experimenter can move forward and backward during operation by fixing the fixed circular table 308 and the trapezoidal shell 101 to the second spring 309, the square fixed block 302 is fixed to the four hollow curved mouth columns 303, the four hollow curved mouth columns 303 are fixed to the first spring 306 inside, the first spring 306 is fixed to the connecting block 307 at one end, the connecting block 307 is fixed to the curved fixed block 305 at the other end, so that the wrist of the experimenter can move flexibly during operation, and the curved fixed block 305 has a certain massage effect on the wrist during movement.

[0032] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application. Figures 1-6, the shell mechanism 1 includes trapezoidal shell 101, trapezoidal shell 101 is fixedly connected with a connecting plate 102 on the front side, the lower end surface of the first connecting plate 102 is fixedly connected with the second connecting plate 103, the second connecting plate 103 is fixedly connected on the front side of the trapezoidal shell 101, the front side of the second connecting plate 103 is fixedly connected with airflow detection display 104, temperature display 105 and temperature knob 106 respectively, the lower position of the two sides of the trapezoidal shell 101 is provided with a first recess 107, the front position of the two sides of the trapezoidal shell 101 is provided with a second recess 108, a plurality of first circular holes 109 are formed in the bottom of the trapezoidal shell 101, the top of the trapezoidal shell 101 is fixedly connected with a gas purifier 110, the bottom of the trapezoidal shell 101 is slidably connected with a object slot 111, the lower end surface of the second connecting plate 103 is hingedly provided with a hook 112, the trapezoidal shell 101 is slidably connected with a glass plate 113, the glass plate 113 is in the second recess 108, the front side of the glass plate 113 is fixedly connected with two rubber gloves 114, the front side of the glass plate 113 is fixedly connected with a handle 115, the lower end surface of the trapezoidal shell 101 is fixedly connected with the upper end surface of the support frame 2, the fixed circular table 308 is connected in the trapezoidal shell 101, and the four second springs 309 are fixedly connected in the trapezoidal shell 101.

[0033] Specifically, by setting airflow detection display 104, temperature display 105 and temperature knob 106 on the second connecting plate 103, the gas in the trapezoidal shell 101 can be monitored in real time, and the temperature can be adjusted by temperature knob 106 when the temperature is too high or too low. By setting the second recess 108 in the two sides of the trapezoidal shell 101, the glass plate 113 can be pulled up and pulled down during use. By setting the first recess 107 in the trapezoidal shell 101, the fixed circular table 308 can slide to drive the telescopic rod 301 to move forward and backward. By hingedly setting the hook 112 on the bottom center of the second connecting plate 103, the handle 115 can be hung on the hook 112 after the glass plate 113 is pulled up, so that the experimental personnel can put the experimental articles into the trapezoidal shell 101.

[0034] Working principle: when using, the experimenter pulls the glass plate 113 upwards through the handle 115 and then hangs the handle 115 on the hook 112, and then puts the experimental articles into the trapezoidal shell 101 and then puts down the glass plate 113 to isolate the gas inside the trapezoidal shell 101 from the outside, and then the experimenter inserts his hands into the rubber gloves 114 and passes through the square fixing block 302 to hold the experimental articles to operate, when operating, the experimenter can move his arms back and forth and can gather or spread out, so that the amplitude of the experimenter's arm swing when operating will not be large to affect the stability of the internal gas, and provides a support for the experimenter, reduces the degree of arm soreness, and the airflow detection display 104 and the temperature display 105 are used to monitor the flow rate and temperature of the internal gas in real time, and when the internal gas of the trapezoidal shell 101 is too high or too low, the temperature inside is adjusted again through the temperature adjusting knob 106.

[0035] Finally, it should be noted that: the above only for the preferred embodiments of the present application and does not limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A safe cabinet with high safety, comprising a shell mechanism (1), a support frame (2), two gas turbulence prevention mechanisms (3), characterized in that: The gas disorder prevention mechanism (3) includes a telescopic rod (301), one end of which is fixedly connected with a fixed circular table (308) close to the shell mechanism (1), and the other end is fixedly connected with a square fixed block (302), the surface of the fixed circular table (308) is fixedly connected with four second springs (309), and the surface of the square fixed block (302) is provided with four second circular holes (310); Four hollow curved mouth columns (303) are fixedly connected in the four second circular holes (310), and the bottom surfaces of the four hollow curved mouth columns (303) are fixedly connected with first springs (306), one ends of the four first springs (306) are fixedly connected with connecting blocks (307), one ends of the four hollow curved mouth columns (303) are fixedly connected with connecting columns (304), and one ends of the four connecting columns (304) are fixedly connected with curved surface fixed blocks (305).

2. The safety cabinet according to claim 1, wherein: The shell mechanism (1) includes a trapezoidal shell (101), and the trapezoidal shell (101) is fixedly connected with a first connecting plate (102) on the front side.

3. The safe cabinet of claim 2, wherein: The second connecting plate (103) is fixedly connected on the front side of the trapezoidal shell (101), and the front side of the second connecting plate (103) is fixedly connected with an airflow detection display (104), a temperature display (105) and a temperature adjusting knob (106) respectively.

4. The safe cabinet of claim 2, wherein: The trapezoidal shell (101) is provided with a first recess (107) on the lower position of the inner side of the two sides, and is provided with a second recess (108) on the front position of the inner side of the two sides.

5. The safe cabinet of claim 2, wherein: The trapezoidal shell (101) is provided with a plurality of first circular holes (109) on the bottom surface of the inner side, and is fixedly connected with a gas purifier (110) on the top.

6. The safe cabinet of claim 5, wherein: The trapezoidal shell (101) is slidably connected with a object groove (111) on the bottom surface, and the second connecting plate (103) is hingedly provided with a hook (112) on the lower end surface.

7. The safe cabinet of claim 2, wherein: The trapezoidal shell (101) is slidably connected with a glass plate (113) in the inner side. The glass plate (113) is fixedly connected with two rubber gloves (114) on the front side surface of the glass plate (113) penetrating the glass plate (113), and is fixedly connected with a handle (115) on the front side surface of the glass plate (113) at the lower position of the middle. The trapezoidal shell (101) is fixedly connected on the upper end surface of the support frame (2), and the fixed circular table (308) is clamped in the inner side of the trapezoidal shell (101).