Ventilation cabinet

Abstract

The utility model relates to the technical field of ventilation cabinets, and discloses a ventilation cabinet which comprises a cabinet body, fixing plates are fixedly connected to the left inner side wall and the right inner side wall of the cabinet body, reciprocating pipes are rotationally connected to the back faces of the two fixing plates and the inner rear wall of the cabinet body through bearings, and a cleaning box is fixedly communicated between the two reciprocating pipes close to each other. According to the ventilation cabinet, incomplete teeth are meshed with gears to rotate in the rotating process, and reset of torsional springs is matched, so that the purpose that a cleaning box and a high-pressure nozzle turn over in a reciprocating mode in the water flow spraying process can be achieved, and the effect of automatically and evenly flushing a polluted liquid area in the cabinet body is achieved; according to the operating platform pollution source disinfection device, the possibility that a user makes contact with a pollution source is avoided, the purpose that the atomizing nozzle turns over in a reciprocating mode in the disinfectant spraying process can be achieved through the arranged disinfection pipe and the atomizing nozzle, the purpose that the operating platform pollution source is disinfected and covered is achieved, and the pollution source treatment efficiency is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of fume hoods, and in particular to a fume hood. Background Art

[0002] Fume hoods are an important part of the local exhaust system. Its efficiency has a very important impact on the technical and economic performance of the entire exhaust system. A well-designed fume hood can achieve the best control effect with a smaller air volume and ensure that the concentration of harmful substances in the working area meets the requirements of national health standards. With the rapid development of science and technology, fume hoods have been widely used in hospitals, disease prevention and control centers and other health care institutions and scientific research departments.

[0003] The existing patent (publication number: CN214022536U) discloses a multifunctional fume hood for the laboratory, including a fume hood main body, an operating platform, and a ventilation device. A socket is provided on the left side of the front of the fume hood main body, a control panel and a hook are provided on the right side of the fume hood main body, a glass window, a storage cabinet, and a wastewater treatment pipeline are provided at the lower end of the fume hood main body, and a constant temperature lamp and a sterilization lamp are provided above the operating platform. By adding the constant temperature lamp and the sterilization lamp, the environment in the fume hood is made more comfortable and clean, and it is effectively prevented from being contaminated by germs during use; by adding the air supply device, the ventilation effect is greatly improved, and the air quality in the fume hood and the discharge of toxic gases are guaranteed; by adding the socket and the hook, the use of medical electronic equipment and the placement of medical supplies are facilitated; by installing the faucet and the wastewater treatment pool and the wastewater treatment pipeline, the probability of contamination in the fume hood is reduced; by using the simple operation panel, the difficulty of using the fume hood is reduced.

[0004] When the above-mentioned fume hood encounters sudden pollution, the contaminated liquid can be quickly rinsed off with a faucet. The liquid will flow into the wastewater treatment tank and then into the sewer along the wastewater treatment pipe. After the flushing is completed, the faucet is closed. However, the faucet is located above the wastewater treatment tank. When sudden pollution occurs, workers are required to open the movable glass window and constantly adjust the faucet angle to clean the operating platform. Users are very likely to come into contact with the contaminated liquid, causing safety hazards. Utility Model Content

[0005] In response to the shortcomings of the prior art, the present application provides a fume hood with advantages such as automatic cleaning. It solves the problem that when the faucet is located above the wastewater treatment tank, when sudden contamination occurs, workers are required to open the movable glass window and constantly adjust the faucet angle to clean the operating platform, and users are very likely to come into contact with contaminated liquids, posing a safety hazard.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a fume hood, comprising a cabinet body, wherein the left and right inner walls of the cabinet body are fixedly connected with fixed plates, the back sides of the two fixed plates and the inner rear wall of the cabinet body are rotatably connected with reciprocating tubes through bearings, two adjacent reciprocating tubes are fixedly connected with the same cleaning box, the adjacent sides of the two cleaning boxes are fixedly connected with multiple high-pressure nozzles, the inner bottom wall of the cabinet body is provided with multiple waste discharge grooves, the bottom end of the inner rear wall of the cabinet body is fixedly connected with a waste discharge pipe, and a valve is installed inside the waste discharge pipe.

[0007] The upper surfaces of the two cleaning boxes are fixedly connected to two brackets, the upper surfaces of each two adjacent brackets are fixedly connected to a disinfection tube, the outer surfaces of the two disinfection tubes are fixedly connected to multiple atomizing nozzles, a delivery pipe is fixedly embedded between the left and right inner walls of the cabinet, the outer surface of the delivery pipe is fixedly connected to two corrugated pipes, and the other ends of the two corrugated pipes are fixedly connected to the disinfection pipes adjacent to them.

[0008] Through the above scheme, the incomplete teeth are arranged to engage the gears during rotation, and cooperate with the resetting of the torsion spring, so that the cleaning box and the high-pressure nozzle can be turned back and forth during the water jetting process, thereby achieving the effect of automatically and evenly flushing the contaminated liquid area inside the cabinet, avoiding the possibility of user contact with the pollution source, and through the disinfection tube and atomizing nozzle, the atomizing nozzle can be turned back and forth during the spraying of the disinfectant, thereby achieving the purpose of disinfecting and covering the pollution source of the operating platform, and effectively improving the pollution source treatment efficiency.

[0009] Furthermore, the rear ends of the two reciprocating tubes are fixedly connected to gears, the front ends of the two gears are fixedly connected to torsion springs, and the other ends of the two torsion springs are fixedly connected to the back of the cabinet.

[0010] Through the above scheme and the provision of the torsion spring, the purpose of automatic resetting of the reciprocating tube can be achieved.

[0011] Furthermore, the back side of the cabinet is rotatably connected to two power shafts via bearings, the rear ends of the two power shafts are fixedly connected with incomplete teeth, each of the incomplete teeth is meshed with a gear adjacent to it, and the rear ends of the two power shafts are fixedly connected to the external motor output end.

[0012] Through the above solution, by setting up an external motor, it is possible to provide power for the rotation of the power shaft.

[0013] Furthermore, a storage box is fixedly connected to the right side of the cabinet, a pump body is fixedly installed on the right side of the cabinet, an output end of the pump body is fixedly connected to the storage box, and an output end of the pump body is fixedly connected to the delivery pipe.

[0014] Through the above scheme and the setting of the pump body, the purpose of conveying disinfectant can be achieved.

[0015] Furthermore, a ventilation duct is fixedly connected to the upper surface of the cabinet, a fan is installed inside the ventilation duct, and a filter element is installed at the top of the ventilation duct.

[0016] Through the above scheme, impurities in the air can be filtered through the cooperation of the fan and the filter element.

[0017] Furthermore, a plurality of constant temperature lamps are fixedly mounted on the inner rear wall of the cabinet.

[0018] Through the above scheme, by setting the constant temperature lamp, the ventilation pipe can be kept at a constant temperature during the experiment.

[0019] Furthermore, a plurality of LED lamps are fixedly mounted on the inner top wall of the cabinet.

[0020] Through the above scheme, by setting the LED lamp, it is possible to illuminate the inside of the cabinet, making it convenient for users to conduct experiments.

[0021] Furthermore, a cover plate is hingedly connected to the front of the cabinet through a hinge, and the cover plate is made of a transparent material.

[0022] According to the above solution, the cover is made of transparent material, which makes it convenient for users to observe the experimental status.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] The fume hood can achieve the purpose of reciprocating flipping of the cleaning box and the high-pressure nozzle during the process of spraying water by means of the incomplete teeth arranged to engage the gears during the rotation and cooperate with the resetting of the torsion spring, thereby achieving the effect of automatically and evenly flushing the contaminated liquid area inside the cabinet body and avoiding the possibility of contact between the user and the pollution source. The disinfection tube and the atomizing nozzle can be arranged to achieve the purpose of reciprocating flipping of the atomizing nozzle during the process of spraying the disinfectant, thereby achieving the purpose of disinfecting and covering the pollution source of the operating platform and effectively improving the pollution source treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a cross-sectional view of the overall structure of this application;

[0026] Figure 2 For this application Figure 1 A schematic diagram of the structure enlargement in the middle;

[0027] Figure 3 This is the front view of the overall structure of this application;

[0028] Figure 4 This is the right view of the overall structure of this application;

[0029] Figure 5 This is the rear view of the overall structure of this application.

[0030] In the figure:

[0031] 1. Cabinet; 2. Fixed plate; 3. Reciprocating pipe; 4. Cleaning box; 5. High-pressure nozzle; 6. Waste discharge trough; 7. Waste discharge pipe; 8. Valve; 9. Bracket; 10. Disinfection tube; 11. Atomizing nozzle; 12. Delivery pipe; 13. Bellows; 14. Gear; 15. Torsion spring; 16. Power shaft; 17. Incomplete teeth; 18. Storage box; 19. Pump body; 20. Ventilation pipe; 21. Fan; 22. Filter element; 23. Constant temperature lamp; 24. LED lamp; 25. Cover plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 A fume hood in this embodiment includes a cabinet 1, and the left and right inner walls of the cabinet 1 are fixedly connected with fixed plates 2, and the backs of the two fixed plates 2 and the inner rear wall of the cabinet 1 are rotatably connected with reciprocating tubes 3 through bearings, and the rear ends of the two reciprocating tubes 3 are fixedly connected with gears 14, and the fronts of the two gears 14 are fixedly connected with torsion springs 15, and the other ends of the two torsion springs 15 are fixedly connected to the back of the cabinet 1. Through the setting of the torsion springs 15, the purpose of automatic resetting of the reciprocating tubes 3 can be achieved, and the back of the cabinet 1 is rotatably connected with two power shafts 16 through bearings, and the rear ends of the two power shafts 16 are fixedly connected with incomplete teeth 17, and each incomplete tooth 17 is meshed with the gear 14 close to it, and the rear ends of the two power shafts 16 are fixedly connected to the output end of the external motor. Through the setting of the external motor, power can be provided for the rotation of the power shafts 16.

[0034] See also Figure 1 , Figure 2 and Figure 3A cleaning box 4 is fixedly connected between two adjacent reciprocating tubes 3, and a plurality of high-pressure nozzles 5 are fixedly connected to the mutually adjacent sides of the two cleaning boxes 4. A plurality of waste discharge grooves 6 are provided on the inner bottom wall of the cabinet 1, and a waste discharge pipe 7 is fixedly connected to the bottom end of the inner rear wall of the cabinet 1, and a valve 8 is installed inside the waste discharge pipe 7. A cover plate 25 is hingedly connected to the front of the cabinet 1 through a hinge, and the cover plate 25 is made of a transparent material, which facilitates the user to observe the experimental status.

[0035] See also Figure 1 , Figure 2 and Figure 3 Two brackets 9 are fixedly connected to the upper surfaces of the two cleaning boxes 4, and a disinfection tube 10 is fixedly connected to the upper surfaces of every two adjacent brackets 9. The outer surfaces of the two disinfection tubes 10 are fixedly connected with a plurality of atomizing nozzles 11. A delivery tube 12 is fixedly inlaid between the left and right inner walls of the cabinet 1, and the outer surface of the delivery tube 12 is fixedly connected with two corrugated tubes 13, and the other ends of the two corrugated tubes 13 are fixedly connected with the disinfection tubes 10 adjacent to them. A storage box 18 is fixedly connected to the right side surface of the cabinet 1, and a pump body 19 is fixedly installed on the right side surface of the cabinet 1, and the output end of the pump body 19 is fixedly connected to the storage box 18, and the output end of the pump body 19 is fixedly connected to the delivery tube 12. By setting the pump body 19, the purpose of conveying disinfectant can be achieved.

[0036] See also Figure 1 , Figure 2 and Figure 3 A ventilation duct 20 is fixedly connected to the upper surface of the cabinet 1, a fan 21 is installed inside the ventilation duct 20, and a filter element 22 is installed at the top of the ventilation duct 20. Through the cooperation of the fan 21 and the filter element 22, impurities in the air can be filtered. A plurality of constant temperature lamps 23 are fixedly installed on the inner rear wall of the cabinet 1. Through the setting of the constant temperature lamps 23, the ventilation duct 20 can maintain a constant temperature during the experiment. A plurality of LED lamps 24 are fixedly installed on the inner top wall of the cabinet 1. Through the setting of the LED lamps 24, the interior of the cabinet 1 can be illuminated, which is convenient for users to conduct experiments.

[0037] A fume hood in the present embodiment, by means of the incomplete teeth 17 engaged with the gear 14 during rotation, and in cooperation with the resetting of the torsion spring 15, can achieve the purpose of reciprocating flipping of the cleaning box 4 and the high-pressure nozzle 5 during the water jetting process, thereby achieving the effect of automatically and evenly flushing the contaminated liquid area inside the cabinet 1, avoiding the possibility of user contact with the pollution source, and by means of the disinfection tube 10 and the atomizing nozzle 11, the purpose of reciprocating flipping of the atomizing nozzle 11 during the spraying of the disinfectant can be achieved, thereby achieving the purpose of disinfecting and covering the pollution source of the operating platform, and effectively improving the pollution source treatment efficiency.

[0038] It should be noted that the rear ends of the two rear reciprocating pipes 3 are both connected to the external water pump output end.

[0039] The working principle of the above embodiment is as follows: during use, when the contaminated liquid leaks, by starting the external motor and the pump body 19, the motor drives the incomplete teeth 17 to rotate, and when the incomplete teeth 17 are engaged with the gear 14, the gear 14 is driven to rotate, and the gear 14 drives the reciprocating tube 3 to rotate, and the reciprocating tube 3 drives the cleaning box 4, the high-pressure nozzle 5 and the atomizing nozzle 11 to rotate. When the incomplete teeth 17 are disengaged from the meshing of the gear 14, the gear 14 drives the cleaning box 4 to reset under the reset of the torsion spring 15, thereby achieving the purpose of automatic reciprocating and uniform scrubbing of the fume hood operating platform by the high-pressure nozzle 5, effectively improving the convenience of the user, and at the same time, during the scrubbing process, through the setting of the atomizing nozzle 11, the contaminated liquid can be disinfected and covered, and the cleaned waste water enters the bottom through the waste discharge trough 6, and at the same time, the valve 8 is opened to flow out from the waste discharge pipe 7 to the inside of the external sealed container, which is convenient for subsequent processing.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0041] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fume hood, comprising a hood body (1), characterized in that: The left and right inner side walls of the cabinet (1) are fixedly connected to fixed plates (2); the backs of the two fixed plates (2) and the inner rear wall of the cabinet (1) are rotatably connected to reciprocating tubes (3) via bearings; the two adjacent reciprocating tubes (3) are fixedly connected to a cleaning box (4); the adjacent sides of the two cleaning boxes (4) are fixedly connected to a plurality of high-pressure nozzles (5); the inner bottom wall of the cabinet (1) is provided with a plurality of waste discharge grooves (6); the bottom end of the inner rear wall of the cabinet (1) is fixedly connected to a waste discharge pipe (7); a valve (8) is installed inside the waste discharge pipe (7); The upper surfaces of the two cleaning boxes (4) are fixedly connected to two brackets (9), the upper surfaces of each of the two adjacent brackets (9) are fixedly connected to a disinfection tube (10), the outer surfaces of the two disinfection tubes (10) are fixedly connected to a plurality of atomizing nozzles (11), a delivery tube (12) is fixedly embedded between the left and right inner walls of the cabinet (1), the outer surface of the delivery tube (12) is fixedly connected to two bellows (13), and the other ends of the two bellows (13) are fixedly connected to the adjacent disinfection tube (10).

2. A fume hood according to claim 1, characterized in that: The rear ends of the two reciprocating tubes (3) are fixedly connected to gears (14), the front ends of the two gears (14) are fixedly connected to torsion springs (15), and the other ends of the two torsion springs (15) are fixedly connected to the back of the cabinet (1).

3. A fume hood according to claim 1, characterized in that: The back of the cabinet (1) is rotatably connected to two power shafts (16) via bearings, and the rear ends of the two power shafts (16) are fixedly connected to incomplete teeth (17), each of the incomplete teeth (17) is meshed with a gear (14) adjacent thereto, and the rear ends of the two power shafts (16) are fixedly connected to an external motor output end.

4. A fume hood according to claim 1, characterized in that: The right side surface of the cabinet (1) is fixedly connected to a storage box (18), the right side surface of the cabinet (1) is fixedly installed with a pump body (19), the output end of the pump body (19) is fixedly connected to the storage box (18), and the output end of the pump body (19) is fixedly connected to the delivery pipe (12).

5. A fume hood according to claim 1, characterized in that: The upper surface of the cabinet (1) is fixedly connected to a ventilation pipe (20), a fan (21) is installed inside the ventilation pipe (20), and a filter element (22) is installed at the top end of the ventilation pipe (20).

6. A fume hood according to claim 1, characterized in that: A plurality of constant temperature lamps (23) are fixedly mounted on the inner rear wall of the cabinet (1).

7. A fume hood according to claim 1, characterized in that: A plurality of LED lamps (24) are fixedly mounted on the inner top wall of the cabinet (1).

8. A fume hood according to claim 1, characterized in that: A cover plate (25) is hingedly connected to the front of the cabinet body (1) via a hinge, and the cover plate (25) is made of a transparent material.

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