A multi-layered fume hood

Abstract

The utility model discloses a multilayer shunt ventilation cabinet relates to ventilation cabinet technical field, include: cabinet, the front end middle part of cabinet is equipped with the accommodation chamber, and the bottom of cabinet is equipped with the ventilation basepiece of ventilation and exchange of accommodation chamber, and the bottom surface of ventilation basepiece has a slot, and the inner wall of the top surface of this slot is fixedly embedded with multifunctional locating seat, and the bottom surface center of multifunctional locating seat is equipped with the connecting pipe, and the left and right two departments of multifunctional locating seat all are equipped with a ventilation auxiliary mechanism, and this ventilation auxiliary mechanism realizes dry or humidification work when ventilation and exchange through the mode of stretching into the connecting pipe, after the end of conventional ventilation and exchange, if need dry or humidification, can control ventilation auxiliary mechanism operation output heat or water mist, and the airflow of input connecting pipe mixes with heat or water mist, and the mixed airflow formed enters the accommodation chamber to carry out dry or humidification work, effectively improve dry or humidification efficiency, and effectively prevent the original airflow organization of ventilation cabinet from being interfered with, thereby leading to airflow uneven or vortex.

Description

Technical Field

[0001] This utility model relates to the field of fume hood technology, and more specifically to a multi-layer diversion fume hood. Background Technology

[0002] A fume hood is a ventilation device used in laboratories. It is primarily used to control, remove, and dilute harmful gases, vapors, dust, and fumes generated during experiments, protecting the health and safety of laboratory personnel and preventing environmental contamination. It is a key piece of equipment for laboratory safety and is widely used in fields such as chemistry, biology, medicine, and environmental protection.

[0003] Existing multi-level fume hoods use a method of directly installing the drying structure inside the hood for drying. This can easily interfere with the original airflow organization of the fume hood, leading to uneven airflow or the generation of eddies, thereby affecting the removal of harmful substances. Utility Model Content

[0004] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0005] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a multi-layer diversion fume hood.

[0006] To achieve the above objectives, the technical solution of this utility model is: a multi-layer diversion fume hood, comprising: a cabinet body, a storage chamber located in the middle of the front end of the cabinet body, a ventilation base for ventilating the storage chamber located at the bottom of the cabinet body, a groove on the bottom surface of the ventilation base, a multi-functional positioning seat fixedly embedded in the inner wall of the top surface of the groove, a connecting pipe located at the center of the bottom surface of the multi-functional positioning seat, and a ventilation auxiliary mechanism located in both the left and right sides of the multi-functional positioning seat, which achieves drying or humidification during ventilation by extending into the connecting pipe.

[0007] As a preferred option, in order to achieve a concealed design and prevent interference with normal ventilation operations, the ventilation auxiliary mechanism includes a telescopic groove located on the inner wall of one side of the connecting pipe, an extension block movable within the telescopic groove, a mixing channel penetrating the upper and lower end faces of the extension block, an output module located within the mixing channel, and a drive motor located within a multi-functional positioning seat. The output end of the drive motor is horizontally oriented towards the telescopic groove, and the output end of the drive motor is connected to a transmission screw threadedly connected to the extension block.

[0008] Preferably, the output module is a heating element for drying operations.

[0009] Preferably, for humidification, the output module is an atomizing nozzle, and a water supply pipe connected to the atomizing nozzle is provided on the outside of the multi-functional positioning base.

[0010] Preferably, in order to ensure the proper operation of the heating element, a battery is provided inside the insert to supply power to the heating element.

[0011] Preferably, for threaded transmission, the extension block is provided with an internal threaded hole that matches the transmission lead screw.

[0012] Preferably, for closed positioning, the opening of the storage chamber is hinged and closed with a cabinet door, and the bottom surface of the storage chamber has a hole that communicates with the connecting pipe. Above the hole, several guide plates are arranged at intervals, either inclined or horizontally.

[0013] As a preferred option, for ease of operation, the outer wall of the cabinet is equipped with a control panel for controlling the operation of the ventilation auxiliary mechanism.

[0014] As a preferred option, an external fan is also included for ventilation, and the fan is sealed to the connecting pipe via a duct.

[0015] The beneficial effects of this utility model are as follows: After the conventional ventilation is completed, if drying or humidification is required, the ventilation auxiliary mechanism can be controlled to output heat or water mist. The airflow in the input connecting pipe is mixed with the heat or water mist, and the resulting mixed airflow enters the receiving chamber to carry out drying or humidification work, effectively improving the drying or humidification efficiency, and effectively preventing interference with the original airflow organization of the fume hood, thereby causing uneven airflow or the generation of eddies. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a multi-layer diversion fume hood according to the present invention;

[0017] Figure 2 This is a bottom view sectional structural diagram of a multi-layer diversion fume hood according to the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the output module, which is an extension block for heating elements.

[0019] Figure 4 This is a schematic diagram of the structure of the output module, which is an extension block for the atomizing nozzle.

[0020] Attached reference numerals: Cabinet - 1, Storage chamber - 11, Ventilation base - 12, Multifunctional positioning seat - 13, Connecting pipe - 14, Telescopic groove - 131, Extension block - 132, Penetrating extension block - 132, Mixing channel - 133, Output module - 134, Drive motor - 135, Transmission screw - 136, Internal threaded hole - 137, Guide plate - 111. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] Please see Figure 1-4 This utility model provides a multi-layer diversion fume hood, including: a cabinet body 1, a storage chamber 11 in the middle of the front end of the cabinet body 1, a ventilation base 12 for ventilating the storage chamber 11 at the bottom of the cabinet body 1, a groove on the bottom surface of the ventilation base 12, a multi-functional positioning seat 13 fixedly embedded in the inner wall of the top surface of the groove, a connecting pipe 14 in the center of the bottom surface of the multi-functional positioning seat 13, and a ventilation auxiliary mechanism in both the left and right parts of the multi-functional positioning seat 13. The ventilation auxiliary mechanism achieves drying or humidification during ventilation by extending into the connecting pipe 14.

[0024] According to some embodiments of this application, optionally, in order to achieve a concealed design and prevent interference with normal ventilation operations, the ventilation auxiliary mechanism includes a telescopic groove 131 located on the inner wall of one side of the connecting pipe 14, an extension block 132 movably located in the telescopic groove 131, a mixing channel 133 penetrating the upper and lower end faces of the extension block 132, an output module 134 located in the mixing channel 133, and a drive motor 135 located in the multi-functional positioning seat 13. The output end of the drive motor 135 is horizontally oriented towards the telescopic groove 131, and the output end of the drive motor 135 is connected to a transmission screw 136 threadedly connected to the extension block 132.

[0025] The outer end face of the insert block 132 is flush with the inner wall of the connecting pipe 14.

[0026] After the regular ventilation is completed, if drying or humidification is required, the drive motor 135 can be controlled to operate. The drive motor 135 drives the transmission screw 136 to rotate. The transmission screw 136 drives the threaded extension block 132 to extend into the connecting pipe 14 along the telescopic groove 131, so that the mixing channel 133 is vertically exposed in the connecting pipe 14. As the output module 134 operates, it outputs heat or water mist. The airflow input into the connecting pipe 14 mixes with the heat or water mist, and the resulting mixed airflow enters the receiving chamber 11 to perform drying or humidification.

[0027] According to some embodiments of this application, optionally, in order to perform drying or humidification, the output module 134 in one of the ventilation auxiliary mechanisms can be set as a heating element, and the output module 134 in the other ventilation auxiliary mechanism can be set as an atomizing nozzle. The multi-functional positioning seat 13 is provided with a water supply pipe connected to the atomizing nozzle. This method helps to make reasonable switching according to experimental needs.

[0028] However, this utility model is not limited to this. The output module 134 in both ventilation auxiliary mechanisms can also be set as heating elements with different output powers. Alternatively, the output module 134 in both ventilation auxiliary mechanisms can be set as atomizing nozzles with different output diameters.

[0029] According to some embodiments of this application, optionally, in order to enable the heating element to operate normally, a storage battery for powering the heating element is provided inside the insert block 132.

[0030] According to some embodiments of this application, optionally, in order to perform threaded transmission, the extension block 132 is provided with an internal threaded hole 137 adapted to the transmission screw 136.

[0031] According to some embodiments of this application, optionally, in order to achieve closed positioning, the opening of the storage chamber 11 is hinged to be closed with a cabinet door, and the bottom surface of the storage chamber 11 has a hole communicating with the connecting pipe 14, and a number of flow guide plates 111 are arranged at intervals or horizontally above the hole.

[0032] According to some embodiments of this application, optionally, for ease of operation, the outer wall of the cabinet 1 is provided with a control panel for controlling the operation of the ventilation auxiliary mechanism.

[0033] Preferably, for ventilation purposes, an external fan is also included, which is sealed to the connecting pipe 14 via a duct.

[0034] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0035] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0036] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A multi-layer flow distribution fume hood, characterized in that, include: Cabinet (1), with a storage chamber (11) in the middle of the front end of the cabinet (1), and a ventilation base (12) for ventilation of the storage chamber (11) at the bottom of the cabinet (1). The bottom surface of the ventilation base (12) has a groove, and a multi-functional positioning seat (13) is fixedly embedded in the inner wall of the top surface of the groove. A connecting pipe (14) is provided in the center of the bottom surface of the multi-functional positioning seat (13). A ventilation auxiliary mechanism is provided in both the left and right sides of the multi-functional positioning seat (13). The ventilation auxiliary mechanism achieves drying or humidification during ventilation by extending into the connecting pipe (14).

2. The multi-layer diversion fume hood according to claim 1, characterized in that, The ventilation auxiliary mechanism includes a telescopic groove (131) located on the inner wall of one side of the connecting pipe (14), an extension block (132) movable in the telescopic groove (131), a mixing channel (133) penetrating the upper and lower end faces of the extension block (132), an output module (134) located in the mixing channel (133), and a drive motor (135) located in the multi-functional positioning seat (13). The output end of the drive motor (135) is horizontally oriented towards the telescopic groove (131), and the output end of the drive motor (135) is connected to a transmission screw (136) that is threadedly connected to the extension block (132).

3. A multi-layer diversion fume hood according to claim 2, characterized in that, The output module (134) is specifically a heating element.

4. A multi-layer diversion fume hood according to claim 2, characterized in that, The output module (134) is specifically an atomizing nozzle, and the multi-functional positioning seat (13) is provided with a water supply pipe connected to the atomizing nozzle.

5. A multi-stage fume hood according to claim 3, wherein, A battery is provided inside the insert (132) to power the heating element.

6. A multi-layer flow distribution fume hood according to claim 1, characterized in that, The extension block (132) is provided with an internal threaded hole (137) that is compatible with the transmission screw (136).

7. A multi-layer diversion fume hood according to claim 1, characterized in that, The opening of the storage chamber (11) is hinged and closed with a cabinet door. The bottom surface of the storage chamber (11) has a hole that communicates with the connecting pipe (14). Several flow guide plates (111) are arranged at intervals or horizontally above the hole.

8. A multi-layer diversion fume hood according to claim 1, characterized in that, The cabinet (1) has a control panel on its outer wall for controlling the operation of the ventilation auxiliary mechanism.

9. A multi-layer diversion fume hood according to claim 1, characterized in that, It also includes an external fan, which is sealed to the connecting pipe (14) via a pipe.

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