Biosafety cabinet capable of preventing hands from being pinched by front window

Abstract

The utility model discloses a biological safety cabinet capable of preventing a front window from pinching hands, which comprises a cabinet body, a lifting component arranged above the cabinet body, a protection component fixed at one end of the lifting component, a limiting component connected with one end of the lifting component, and an adjusting component arranged below the cabinet body. The lifting assembly is arranged on the cabinet body and can be matched with the lifting assembly, so that the biological safety cabinet has double guarantees, the glass front window is further ensured not to slide down accidentally when encountering an obstacle, the risk of a hand clamping accident is effectively avoided, and more reliable protection is provided for an operator; the cabinet body can be kept stable on the uneven ground, the situation that the cabinet body inclines due to the uneven ground, and then the accuracy and safety of laboratory operation are affected is avoided, and through the lifting assembly arranged on the cabinet body, lifting treatment and auxiliary anti-pinch treatment can be conducted on the glass front window.

Description

Technical Field

[0001] This utility model relates to the field of biosafety cabinet technology, specifically to a biosafety cabinet that prevents hands from being pinched by the front window. Background Technology

[0002] Biosafety cabinets designed to prevent hand pinching from the front window are specifically designed to improve laboratory safety, particularly to prevent users from being pinched during operation. These biosafety cabinets are typically equipped with intelligent sensing systems or mechanical guards to prevent hand pinching accidents when the front window is moved.

[0003] However, when the glass front window of a biosafety cabinet encounters obstacles or abnormal resistance during lifting, the lack of an effective stopping and locking mechanism causes the front window to continue moving, increasing the risk of hand pinching accidents and threatening the safety of operators. At the same time, when the biosafety cabinet is placed on an uneven ground, the cabinet body in the existing technology may not be able to keep level, resulting in poor overall stability of the equipment and affecting the accuracy and safety of laboratory operations.

[0004] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in related technologies, this utility model proposes a biosafety cabinet that prevents the front window from pinching the hand, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A biosafety cabinet with anti-hand-pinch front window includes a cabinet body. A lifting assembly is installed on the top of the cabinet body. A protective assembly is fixed to one end of the lifting assembly. A limiting assembly is connected to one end of the lifting assembly. The limiting assembly includes a counterweight plate fixedly connected to one end of the lifting assembly. A limiting groove is opened on one side of the cabinet body. Multiple slide rails are installed on the inner wall of the limiting groove. The inner walls of the multiple slide rails contact the two sides of the counterweight plate. Multiple limiting holes are opened on both sides of the counterweight plate. A miniature electric telescopic rod is installed on the inner wall of the limiting hole. A limiting block is fixed to one end of the miniature electric telescopic rod. A rack is contacted at one end of the limiting block. One side of the rack is fixedly connected to the inner wall of the slide rail. An adjustment assembly is installed at the bottom of the cabinet body.

[0008] Furthermore, to better adjust the height of the front window and assist in preventing pinching, the lifting assembly includes a fixed base fixedly installed on the top of the cabinet. A fixed frame is fixed at one end of the fixed base. A reduction motor is installed on one side of the fixed frame. An adjusting synchronous wheel is installed through the fixed frame at one end of the reduction motor. An adjusting synchronous belt is meshed with the adjusting synchronous wheel. Multiple adjusting pulleys are in contact with one side of the adjusting synchronous belt. One adjusting pulley is connected to the inner wall of the fixed frame via a rotating rod. Another adjusting pulley is connected to a mounting frame via a rotating rod. The lower part of the mounting frame is fixedly connected to the upper part of the fixed base. One end of the adjusting synchronous belt is fixedly connected to a counterweight plate.

[0009] Furthermore, in order to better assist in the protection of the glass front window, the protective component includes a glass front window that is fixedly connected to one end of an adjusting timing belt, and slide rails on both sides of the glass front window. One side of slide rail is fixedly connected to one side of the cabinet, and a protective cover is connected to one side of slide rail via a hinge.

[0010] Furthermore, in order to better assist in adjusting and leveling the biosafety cabinet and improve its stability, the adjustment component includes multiple support cylinders fixedly installed at the bottom of the cabinet. The inner wall of the support cylinders is threaded with an adjustment screw, and one end of the adjustment screw is fixed with a support plate.

[0011] Furthermore, in order to better control and use the biosafety cabinet, a controller is installed on one side of the protective cover, and multiple connecting frames are fixed on one side of the inner wall of the protective cover, with support rods connected to the connecting frames.

[0012] Furthermore, in order to better support the protective cover, one end of the support rod contacts a support seat, and one side of the support seat is fixed to one side of the slide rail.

[0013] Furthermore, in order to better restrict the glass front window, a limiting platform is fixed on one side of the cabinet. The two sides of the limiting platform are fixedly connected to the opposite side of the slide rail, and the upper part of the limiting platform is opposite to the lower part of the glass front window.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) By setting a limiting component in the lifting assembly, it can cooperate with the lifting assembly to give the biosafety cabinet double protection, further ensuring that the glass front window will not slide down unexpectedly when it encounters an obstacle, effectively avoiding the risk of hand pinching accidents, and providing more reliable protection for operators. At the same time, the adjustment component set in the cabinet can ensure that the cabinet can remain stable on uneven ground, avoiding the cabinet tilting due to uneven ground, which would affect the accuracy and safety of laboratory operations.

[0016] (2) The lifting components installed in the cabinet can be used to lift the glass front window and provide anti-pinch protection, avoiding friction and collision between the glass front window and the cabinet or other components caused by deviation of the lifting trajectory, thus improving the stability and reliability of the equipment. At the same time, the protective components installed in the lifting components can effectively cover the slide rail area to prevent foreign objects from entering, ensuring the smoothness and safety of the glass front window during lifting. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the main structure of a biosafety cabinet that prevents hand pinching from the front window, according to an embodiment of the present utility model.

[0019] Figure 2 This is a side structural diagram of a biosafety cabinet that prevents hand pinching from the front window according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the protective and adjustment components of a biosafety cabinet that prevents hand pinching from the front window, according to an embodiment of the present utility model.

[0021] Figure 4 This is a schematic diagram of the lifting assembly structure of a biosafety cabinet with anti-hand pinching front window according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the limiting component structure of a biosafety cabinet that prevents hand pinching from the front window, according to an embodiment of the present invention.

[0023] In the picture:

[0024] 1. Cabinet; 2. Lifting assembly; 201. Fixed base; 202. Fixed frame; 203. Gear motor; 204. Adjustable synchronous pulley; 205. Adjustable synchronous belt; 206. Adjustable pulley; 207. Mounting frame; 3. Protective assembly; 301. Glass front window; 302. Slide rail one; 303. Protective cover; 4. Limiting assembly; 401. Counterweight plate; 402. Slide rail two; 403. Miniature electric telescopic rod; 404. Limiting block; 405. Rack; 5. Adjusting assembly; 501. Support cylinder; 502. Adjusting screw; 503. Support plate; 6. Controller; 7. Connecting frame; 8. Support rod; 9. Support base; 10. Limiting platform. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1:

[0027] like Figures 1-5 As shown, a biosafety cabinet for preventing hand pinching in the front window according to an embodiment of the present invention includes a cabinet body 1. A lifting assembly 2 is provided above the cabinet body 1. The lifting assembly 2 includes a fixed base 201 fixedly provided above the cabinet body 1. A fixed frame 202 is fixed at one end of the fixed base 201. A reduction motor 203 is provided on one side of the fixed frame 202. When the front window is lowered electrically, if the glass front window 301 presses on a person's hand, the downward movement is blocked, and the current of the reduction motor 203 will increase beyond the normal current. At this time, the controller 6 immediately stops the rotation of the reduction motor 203 and briefly reverses the rotation, so that the glass front window 301 rises slightly to prevent further injury to the person's hand.

[0028] One end of the geared motor 203 passes through the fixed frame 202 and is equipped with an adjusting synchronous pulley 204. An adjusting synchronous belt 205 is meshed on the adjusting synchronous pulley 204. One side of the adjusting synchronous belt 205 contacts multiple adjusting pulleys 206. One adjusting pulley 206 is connected to the inner wall of the fixed frame 202 via a rotating rod. Another adjusting pulley 206 is connected to a mounting frame 207 via a rotating rod. The lower part of the mounting frame 207 is fixedly connected to the upper part of the fixed base 201.

[0029] One end of the lifting component 2 is fixed with a protective component 3. The protective component 3 includes a glass front window 301 fixedly connected to one end of the adjusting synchronous belt 205. The two sides of the glass front window 301 are in contact with the slide rail 302. One side of the slide rail 302 is fixedly connected to one side of the cabinet 1. One side of the slide rail 302 is connected to a protective cover 303 via a hinge.

[0030] A controller 6 is provided on one side of the protective cover 303. Multiple connecting frames 7 are fixed on one side of the inner wall of the protective cover 303. There are two connecting frames 7. A support rod 8 is connected to the connecting frame 7. One end of the support rod 8 contacts a support seat 9. One side of the support seat 9 is fixed to one side of the slide rail 302.

[0031] A limiting platform 10 is fixed on one side of the cabinet 1. The two sides of the limiting platform 10 are fixedly connected to the opposite side of the slide rail 302. The top of the limiting platform 10 is opposite to the bottom of the glass front window 301.

[0032] Example 2:

[0033] like Figures 1-5 As shown, a biosafety cabinet for preventing hand pinching in the front window according to an embodiment of the present utility model has a limiting component 4 connected to one end of the lifting component 2. The limiting component 4 includes a counterweight plate 401 fixedly connected to one end of the lifting component 2, and one end of the adjusting synchronous belt 205 fixedly connected to the counterweight plate 401. A limiting groove is opened on one side of the cabinet body 1, and multiple slide rails 402 are installed on the inner wall of the limiting groove. The number of slide rails 402 is two.

[0034] The inner walls of multiple slide rails 402 are in contact with the two sides of the counterweight plate 401. Multiple limiting holes are opened on both sides of the counterweight plate 401. Every four limiting holes are located on one side of the counterweight plate 401. A miniature electric telescopic rod 403 is installed on the inner wall of the limiting hole. A limiting block 404 is fixed to one end of the miniature electric telescopic rod 403. A rack 405 is in contact with one end of the limiting block 404. One side of the rack 405 is fixedly connected to the inner wall of the slide rail 402.

[0035] The mini electric telescopic pole 403, the geared motor 203 and the controller 6 are electrically connected. The mini electric telescopic pole 403, the geared motor 203 and the controller 6 are electrically connected to a sensor (such as an infrared sensor). The sensor is existing technology, so it will not be described in detail. The sensor, the mini electric telescopic pole 403, the geared motor 203 and the controller 6 are electrically connected to an external power supply.

[0036] An adjustment assembly 5 is provided at the bottom of the cabinet 1. The adjustment assembly 5 includes multiple support cylinders 501 fixedly installed at the bottom of the cabinet 1. There are four support cylinders 501. The inner wall of the support cylinder 501 is threaded with an adjustment screw 502. One end of the adjustment screw 502 is fixed with a support plate 503.

[0037] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0038] In summary, with the help of the above-mentioned technical solution of this utility model, when in use, the geared motor 203 drives the adjusting synchronous wheel 204 to rotate, and the adjusting synchronous belt 205 drives the counterweight plate 401 to move vertically under the guidance of the adjusting pulley 206. The counterweight plate 401 is connected to the glass front window 301 through the adjusting synchronous belt 205, so as to realize the lifting and lowering control of the glass front window 301 along the slide rail 302.

[0039] The counterweight plate 401 is embedded in the slide rail 402 on both sides. The inner wall of the slide rail 402 is fixed with a rack 405. When the glass front window 301 needs to be fixed or the glass front window 301 accidentally slides down, the controller 6 receives the signal from the sensor such as the infrared sensor and monitors the movement status of the front window in real time. If an obstacle or abnormal resistance is detected, the deceleration motor 203 will immediately stop rotating and reverse its rotation in a short time, so that the glass front window 301 rises slightly. The micro electric telescopic rod 403 set on the counterweight plate 401 is activated to push the limiting block 404 to mesh with the rack 405 and lock the position of the counterweight plate 401, thereby preventing the glass front window 301 from accidentally sliding down and pinching the hand. This provides double protection for operation safety. The controller 6 triggers the micro electric telescopic rod 403 to retract and unlock it, and the deceleration motor 203 resumes operation.

[0040] The glass front window 301 is slidably connected to the cabinet 1 on both sides via slide rail 302 to ensure stable lifting trajectory. The protective cover 303 is closed by hinges to cover the slide rail area to prevent foreign objects from entering. The limiting platform 10 is located below the front window to limit its lowest position and avoid excessive descent.

[0041] When the cabinet 1 is not in a stable position, the adjusting screw 502 connected by the internal thread of the support cylinder 501 can be rotated to adjust the height, causing the support plate 503 to contact the ground, adjusting the level of the cabinet 1, and ensuring the overall stability of the equipment.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A biological safety cabinet with a front window hand guard, characterized in that, The application relates to a cabinet, which comprises a cabinet body (1), a lifting assembly (2) arranged above the cabinet body (1), a protection assembly (3) fixed to one end of the lifting assembly (2), a limiting assembly (4) connected to one end of the lifting assembly (2), a counterweight plate (401) fixedly connected to one end of the lifting assembly (2), a limiting groove formed in one side of the cabinet body (1), a plurality of slide rails two (402) mounted on the inner wall of the limiting groove, the inner walls of the plurality of slide rails two (402) being in contact with the two sides of the counterweight plate (401), a plurality of limiting holes formed in the two sides of the counterweight plate (401), a micro electric telescopic rod (403) mounted on the inner wall of the limiting hole, a limiting block (404) fixed to one end of the micro electric telescopic rod (403), a rack (405) in contact with one end of the limiting block (404), and an adjusting assembly (5) arranged below the cabinet body (1).

2. The biosafety cabinet of claim 1, wherein, The lifting assembly (2) comprises a fixed seat (201) fixedly arranged above the cabinet body (1), a fixed frame (202) fixed to one end of the fixed seat (201), a speed reducer motor (203) arranged on one side of the fixed frame (202), an adjusting synchronous wheel (204) mounted on one end of the speed reducer motor (203) and penetrating through the fixed frame (202), an adjusting synchronous belt (205) in meshing connection with the adjusting synchronous wheel (204), a plurality of adjusting pulleys (206) in contact with one side of the adjusting synchronous belt (205), one adjusting pulley (206) being connected to the inner wall of the fixed frame (202) through a rotating rod, another adjusting pulley (206) being connected with a mounting frame (207) through a rotating rod, the lower side of the mounting frame (207) being fixedly connected with the upper side of the fixed seat (201), and one end of the adjusting synchronous belt (205) being fixedly connected with the counterweight plate (401).

3. The biosafety cabinet of claim 2, wherein, The protection assembly (3) comprises a glass front window (301) fixedly connected to one end of the adjusting synchronous belt (205), slide rails one (302) in contact with the two sides of the glass front window (301), and a protection cover (303) connected to one side of the slide rails one (302) through a hinge.

4. The biosafety cabinet of claim 3, wherein, The adjusting assembly (5) comprises a plurality of supporting barrels (501) fixedly arranged below the cabinet body (1), and an adjusting screw (502) threadedly connected to the inner wall of the supporting barrel (501), and a supporting plate (503) fixed to one end of the adjusting screw (502).

5. The biosafety cabinet of claim 4, wherein, One side of the protection cover (303) is provided with a controller (6), one side of the inner wall of the protection cover (303) is fixedly provided with a plurality of connecting frames (7), and a supporting rod (8) is connected to the connecting frame (7).

6. A biological safety cabinet according to claim 5, wherein, One end of the supporting rod (8) is in contact with a supporting seat (9), and one side of the supporting seat (9) is fixed to one side of the slide rails one (302).

7. A biosafety cabinet according to claim 6, wherein, One side of the cabinet (1) is fixed with a limiting table (10), two sides of the limiting table (10) are fixedly connected with opposite sides of the slide rail (302), and the upper side of the limiting table (10) is opposite to the lower position of the glass front window (301).

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