Ventilation cabinet with baffles

Abstract

The ventilation cabinet comprises a ventilation cabinet body, a working table top is arranged on the side wall of the ventilation cabinet body, a fixing sleeve is installed on the side wall of the ventilation cabinet body, the transparent partition is installed in the fixing sleeve in a sliding mode, the transparent partition comprises a main partition plate, an auxiliary partition plate, an operation hole, a ring body and an air outlet, and the main partition plate is installed in the fixing sleeve in a sliding mode. The lower wall of the main partition plate is hinged to an auxiliary partition plate, an operation hole is formed in the side wall of the auxiliary partition plate, a ring body is installed on the side wall of the auxiliary partition plate and located on the outer side of the operation hole, an air outlet is formed in the side wall of the ring body, and an externally-hung draught fan is installed on the side wall of the ventilation cabinet body. Air is conveyed into the ring body through the externally-hung draught fan and then blown out through the air outlet, so that airflow blowing inwards is formed at the operation hole, the situation that irritant gas escapes through the operation hole is avoided, and the health of workers is fully protected.

Description

Technical Field

[0001] This patent relates to the technical field of fume hoods, specifically a fume hood with partitions. Background Art

[0002] A fume hood is a cabinet used in laboratories, with a workbench on top. During the experiment, the fume hood can extract the irritating gas generated by the experiment, purify it through the internal filter element, and then discharge it, effectively protecting the health of the staff;

[0003] Existing fume hoods generally have a transparent partition in front of the workbench, which separates the workbench from the worker. By opening holes in the partition, the worker can put his hands into the fume hood to operate. However, the gas in the partition with holes can easily escape through the holes, causing the worker to inhale it, affecting the worker's health.

[0004] Patent content

[0005] The purpose of this patent is to provide a fume hood with a partition to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, this patent provides the following technical solutions: a fume hood with a baffle, comprising a fume hood body, the side wall of the fume hood body is provided with a work surface, the side wall of the fume hood body is installed with a fixed sleeve, and a transparent baffle is slidably installed in the fixed sleeve;

[0007] The transparent partition includes a main partition, a secondary partition, an operation hole and a ring body, wherein the main partition is slidably installed in the fixed sleeve, the lower wall of the main partition is hinged with the secondary partition, the side wall of the secondary partition is provided with an operation hole, the side wall of the secondary partition is provided with a ring body, the ring body is located outside the operation hole, and the side wall of the ring body is provided with an air outlet;

[0008] An external fan is installed on the side wall of the fume hood body, and the external fan is electrically connected to an external power supply. One end of an air pipe is installed on the output end of the external fan, and the other end of the air pipe passes through the side wall of the ring body and communicates with the inner cavity of the ring body.

[0009] Preferably, an air flow channel is opened in the inner cavity of the fume hood body, a filter element is installed in the air flow channel, a fan is installed inside the fume hood body, the input end of the fan is communicated with the air flow channel, an air duct is installed at the output end of the fan, and the air duct runs through the side wall of the fume hood body.

[0010] Preferably, a positioning pin is inserted into the side wall of the fixing sleeve, a positioning hole is opened on the side wall of the main partition, the positioning pin can be inserted into the positioning hole, a hanging ring is installed on the side wall of the auxiliary partition, a protruding rod is installed on the side wall of the fixing sleeve, and the hanging ring can be hung on the outside of the protruding rod.

[0011] Preferably, a rotating shaft is installed on the side wall of the main partition, a fixing ring is installed on the side wall of the rotating shaft, a scraper is installed on the side wall of the fixing ring, a rubber strip is installed on the side wall of the scraper, and the rubber strip is in contact with the side wall of the main partition.

[0012] Preferably, a motor seat is installed on the side wall of the main partition, a micro motor is inserted into the side wall of the motor seat, the micro motor is electrically connected to an external power source, and an output end of the micro motor is connected to a rotating shaft.

[0013] Preferably, a side wall of the fixing sleeve is provided with a clearance groove, and the micro motor can be inserted into the clearance groove.

[0014] Compared with the prior art, the beneficial effects of this patent are:

[0015] The device sets a ring body outside the operation hole, delivers air into the ring body through an external fan, and then blows it out through the air outlet, so that an inward blowing airflow is formed at the operation hole, thereby preventing irritating gas from escaping through the operation hole and fully protecting the health of the staff;

[0016] In addition, the device is also provided with a scraper and a rubber strip on the main partition for cleaning the main partition, so that the sight of the staff will not be blocked by the liquid splashed on the main partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of this patent.

[0018] Figure 2 This is a schematic diagram of the internal structure of the main body of the fume hood of this patent.

[0019] Figure 3 This is a schematic diagram of the transparent barrier structure of this patent.

[0020] In the figure: 1 fume hood body, 2 work table, 3 fixing sleeve, 4 transparent baffle, 41 main partition, 42 auxiliary partition, 43 operation hole, 44 ring body, 5 external fan, 6 air pipe, 7 air flow channel, 8 filter element, 9 fan, 10 air duct, 11 positioning pin, 12 positioning hole, 13 hanging ring, 14 protruding rod, 15 rotating shaft, 16 fixing ring, 17 scraper, 18 rubber strip, 19 motor seat, 20 micro motor, 21 make way slot. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of this patent to clearly and completely describe the technical solutions in the embodiments of this patent. Obviously, the described embodiments are only part of the embodiments of this patent, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0022] See also Figure 1-3 This patent provides a technical solution: a fume hood with a baffle, comprising a fume hood body 1, a side wall of the fume hood body 1 is provided with a work surface 2, a fixed sleeve 3 is installed on the side wall of the fume hood body 1, and a transparent baffle 4 is slidably installed in the fixed sleeve 3;

[0023] The transparent partition 4 can separate the work surface 2 from the staff, thereby further protecting the staff;

[0024] The transparent baffle 4 includes a main baffle 41, a secondary baffle 42, an operation hole 43 and a ring body 44. The main baffle 41 is slidably installed in the fixed sleeve 3. The lower wall of the main baffle 41 is hinged with the secondary baffle 42. The side wall of the secondary baffle 42 is provided with an operation hole 43. The side wall of the secondary baffle 42 is provided with a ring body 44. The ring body 44 is located outside the operation hole 43. The side wall of the ring body 44 is provided with an air outlet.

[0025] The operation hole 43 is provided so that the operator can insert his hand to operate the experimental instrument on the work surface 2. At the same time, the external fan 5 delivers air into the ring body 44, and then forms an inward blowing airflow at the operation hole 43 through the air outlet, thereby preventing irritating gas from escaping through the operation hole 43, and fully protecting the health of the operator.

[0026] An external fan 5 is installed on the side wall of the fume hood body 1, and the external fan 5 is electrically connected to an external power supply. One end of an air pipe 6 is installed on the output end of the external fan 5, and the other end of the air pipe 6 passes through the side wall of the ring body 44 and communicates with the inner cavity of the ring body 44.

[0027] Specifically, an air flow channel 7 is provided in the inner cavity of the fume hood body 1, a filter element 8 is installed in the air flow channel 7, a fan 9 is installed inside the fume hood body 1, the input end of the fan 9 is communicated with the air flow channel 7, and an air duct 10 is installed at the output end of the fan 9, and the air duct 10 runs through the side wall of the fume hood body 1;

[0028] The fan 9 is also electrically connected to an external power supply. A plurality of air inlets are provided on the inner wall of the fume hood body 1 proposed in the present device, and the air inlets are all communicated with the air flow channel 7, so that after the fan 9 is started, the gas can be sucked in through the air inlet, purified through the filter element 8, and then discharged through the air duct 10.

[0029] Specifically, a positioning pin 11 is inserted into the side wall of the fixing sleeve 3, a positioning hole 12 is opened on the side wall of the main partition 41, and the positioning pin 11 can be inserted into the positioning hole 12, a hanging ring 13 is installed on the side wall of the auxiliary partition 42, and a convex rod 14 is installed on the side wall of the fixing sleeve 3, and the hanging ring 13 can be hung on the outside of the convex rod 14;

[0030] The positioning pin 11 can be used to fix the position of the transparent baffle 4 when the transparent baffle 4 is retracted into the fixing sleeve 3, so that the staff can put the experimental tools on the work surface 2 conveniently;

[0031] Furthermore, the auxiliary partition 42 proposed in this article can be convenient for staff to operate when the newspaper is in a folded state through the cooperation of the hanging ring 13 and the protruding rod 14.

[0032] Specifically, a rotating shaft 15 is installed on the side wall of the main partition 41, a fixing ring 16 is installed on the side wall of the rotating shaft 15, a scraper 17 is installed on the side wall of the fixing ring 16, a rubber strip 18 is installed on the side wall of the scraper 17, and the rubber strip 18 is in contact with the side wall of the main partition 41;

[0033] In order to prevent the splashed liquid from adhering to the main partition 41 and affecting the sight of the staff during the experiment, the device is provided with a rotatable scraper 17 and a rubber strip 18 on its main partition 41, so that the liquid within a certain range can be scraped off to avoid affecting the sight of the staff.

[0034] Specifically, a motor seat 19 is installed on the side wall of the main partition 41 , a micro motor 20 is inserted into the side wall of the motor seat 19 , the micro motor 20 is electrically connected to an external power source, and an output end of the micro motor 20 is connected to the rotating shaft 15 .

[0035] Specifically, a side wall of the fixing sleeve 3 is provided with a clearance groove 21 , and the micro motor 20 can be inserted into the clearance groove 21 .

[0036] Working principle: During the experiment, the staff first places the experimental tools on the work surface 2, and then pulls out the positioning pin 11 to make the transparent baffle 4 slide out of the fixed sleeve 3 to cover the work surface 2. During the experiment, the internal fan 9 and the external fan 5 of the fume hood body 1 are started. After the fan 9 is started, the gas can be sucked in through the air inlet, purified through the filter element 8, and then discharged through the air duct 10. The external fan 5 transports air into the ring body 44 and then blows it out through the air outlet, so that an inward blowing airflow is formed at the operating hole 43, thereby preventing irritating gas from escaping through the operating hole 43 and fully protecting the health of the staff;

[0037] At the same time, the micro motor 20 drives the rotating shaft 15 to rotate, so that the rubber strip 18 on the scraper 17 cleans the liquid attached to the main partition 41 to avoid affecting the sight of the staff.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fume hood with a partition, comprising a fume hood body (1), characterized in that: The side wall of the fume hood body (1) is provided with a work surface (2), the side wall of the fume hood body (1) is installed with a fixed sleeve (3), and a transparent baffle (4) is slidably installed in the fixed sleeve (3); The transparent partition (4) comprises a main partition (41), a secondary partition (42), an operating hole (43) and a ring body (44); the main partition (41) is slidably mounted in the fixing sleeve (3); the lower wall of the main partition (41) is hingedly connected with the secondary partition (42); the side wall of the secondary partition (42) is provided with an operating hole (43); the side wall of the secondary partition (42) is provided with a ring body (44); the ring body (44) is located outside the operating hole (43); and the side wall of the ring body (44) is provided with an air outlet; An external fan (5) is installed on the side wall of the fume hood body (1), and the external fan (5) is electrically connected to an external power supply. One end of an air pipe (6) is installed on the output end of the external fan (5), and the other end of the air pipe (6) passes through the side wall of the ring body (44) and communicates with the inner cavity of the ring body (44).

2. A fume hood with a partition according to claim 1, characterized in that: The inner cavity of the fume hood body (1) is provided with an air flow channel (7), a filter element (8) is installed in the air flow channel (7), a fan (9) is installed inside the fume hood body (1), an input end of the fan (9) is communicated with the air flow channel (7), an output end of the fan (9) is installed with an air duct (10), and the air duct (10) runs through the side wall of the fume hood body (1).

3. A fume hood with a partition according to claim 1, characterized in that: A positioning pin (11) is inserted into and installed on the side wall of the fixing sleeve (3); a positioning hole (12) is opened on the side wall of the main partition (41); the positioning pin (11) can be inserted into the positioning hole (12); a hanging ring (13) is installed on the side wall of the auxiliary partition (42); a convex rod (14) is installed on the side wall of the fixing sleeve (3); and the hanging ring (13) can be hung on the outside of the convex rod (14).

4. A fume hood with a partition according to claim 3, characterized in that: A rotating shaft (15) is installed on the side wall of the main partition (41), a fixing ring (16) is installed on the side wall of the rotating shaft (15), a scraper (17) is installed on the side wall of the fixing ring (16), a rubber strip (18) is installed on the side wall of the scraper (17), and the rubber strip (18) is in contact with the side wall of the main partition (41).

5. A fume hood with a partition according to claim 4, characterized in that: A motor seat (19) is installed on the side wall of the main partition (41), a micro motor (20) is inserted into the side wall of the motor seat (19), the micro motor (20) is electrically connected to an external power source, and an output end of the micro motor (20) is connected to a rotating shaft (15).

6. A fume hood with a partition according to claim 5, characterized in that: The side wall of the fixing sleeve (3) is provided with a clearance groove (21), and the micro motor (20) can be inserted into the clearance groove (21).

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