Air supplement type ventilation cabinet

Abstract

The utility model relates to the technical field of ventilation cabinets, and provides an air supplement type ventilation cabinet which comprises an operation table, a transverse block, a top cover, an air inlet pipe, an exhaust pipe, a water pipe and a rotating assembly. Through an air inlet pipe and an air inlet ring, external air enters the operation table, a motor is controlled to drive a rotating shaft to rotate in a ring block, and due to the fact that a limiting block is located in a ring groove, the rotating shaft cannot deviate in the ring block and cannot be disengaged from the ring block; the rotation of the rotating shaft can synchronously drive the fan blade connecting block and the flapping ring to rotate, and the air transmitted into the operation table by the air inlet pipe can be fully diffused in the operation table along with the rotation of the fan blade connecting block and the flapping ring, so that the external air is quickly and uniformly diffused in the operation table; and then air in the operation table can be sucked out and transmitted to the outside through the exhaust ring and the exhaust pipe, so that the problem that the air cannot be quickly and uniformly diffused in the ventilation cabinet when the air is supplemented to the ventilation cabinet is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fume hoods, and specifically to an air supply type fume hood. Background Art

[0002] Cabinet exhaust hoods are commonly known as fume hoods, which are similar to closed hoods. Small parts spray paint cabinets and chemical laboratory fume hoods are typical structures of cabinet exhaust hoods. Large room fume hoods have one side completely open, and operators work inside the cabinet. They are mainly used for large-scale painting, powder bagging, etc. The working opening of the fume hood has a great influence on the airflow distribution in the cabinet, and the airflow distribution directly affects the working efficiency of the cabinet exhaust hood.

[0003] The patent specification with announcement number CN213793385U discloses an air-supplementing fume hood, which is provided with a hollow table top, an air-supplementing duct, an air guide duct, a folding plate and an exhaust duct. Air can be blown into the air-supplementing duct through the air inlet duct, and the clean airflow can be blown toward the hollow table top, and then discharged from one end of the hollow table top. The airflow is guided to the top of the table through the folding plate, thereby effectively improving the adequacy of air exchange. The airflow is guided by the guide plate to improve the uniformity of air exchange, and finally discharged from the exhaust duct.

[0004] However, in the implementation of relevant technologies, it was found that the above technical solution has the following problems: when the above device is used to replenish air inside the fume hood, after the outside air is sucked into the fume hood, the replenished air cannot be quickly and evenly diffused inside the fume hood, so further improvement is needed. Utility Model Content

[0005] The utility model provides an air supply type fume hood, which solves the problem in the related art that the air cannot be quickly and evenly diffused inside the fume hood when the fume hood is supplied with air.

[0006] The technical solution of the utility model is as follows:

[0007] A wind-supplementing fume hood comprises an operating table, a horizontal block is fixedly connected to the inner wall of the operating table, a top cover is fixedly connected to the upper end of the operating table, an air inlet pipe and an exhaust pipe are penetrated and connected to the upper end of the top cover, a water pipe is connected to one side of the operating table, and a rotating component is arranged inside the operating table.

[0008] One end of the top cover is fixedly connected with an air inlet ring and an air exhaust ring, the air inlet ring is connected with the air inlet pipe, and the exhaust ring is connected with the exhaust pipe. The rotating assembly includes a cross-shaped connecting rod fixedly connected to the inner wall of the air inlet ring, one end of the cross-shaped connecting rod is fixedly connected with a ring block, and an annular groove is opened on the inner wall of the ring block.

[0009] Preferably, a plurality of water outlets are evenly arranged on one side of the horizontal block, and the water pipe passes through the operating table and the interior of the horizontal block to be connected with the water outlets.

[0010] Preferably, the lower end of the ring block is fixedly connected to a motor, a rotating shaft is rotatably connected to the inside of the ring block, and the lower end of the rotating shaft is connected to the motor.

[0011] Preferably, a limiting block is fixedly connected to the outer surface of the rotating shaft, and the limiting block is rotatably connected to the annular groove.

[0012] Preferably, a fan blade connecting block is fixedly connected to the outer surface of the rotating shaft, and a fanning ring is fixedly connected to one end of the fan blade connecting block.

[0013] The working principle and beneficial effects of the utility model are:

[0014] 1. In the utility model, the outside wind enters the interior of the operating table through the air inlet pipe and the air inlet ring, and the control motor drives the rotating shaft to rotate inside the ring block. Because the limit block is located inside the ring groove, the rotating shaft will not deviate inside the ring block, and the rotating shaft will not separate from the ring block. The rotation of the rotating shaft will synchronously drive the fan blade connecting block and the fan ring to rotate. With the rotation of the fan blade connecting block and the fan ring, the wind transmitted from the air inlet pipe to the inside of the operating table can be fully diffused inside the operating table, so that the outside wind can be quickly and evenly diffused inside the operating table, and then the wind inside the operating table can be sucked out and transmitted to the outside through the exhaust ring and the exhaust pipe, which solves the problem that the wind cannot be quickly and evenly diffused inside the fume hood when it is inconvenient to replenish air in the fume hood.

[0015] 2. In the utility model, when air is supplied inside the operating table, dust is easily driven into the inside of the operating table. At this time, the staff can control the water outlet through the water pipe to evenly spray a small amount of water into the inside of the operating table. The water will adhere to the dust, so that the dust falls on the inner wall of the operating table, and cannot float in the air inside the operating table, thereby facilitating the cleaning of the dust inside the operating table. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the top cover structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the rotating shaft structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the air inlet ring structure of the utility model.

[0021] In the figure: 1, operating table; 2, horizontal block; 21, water outlet; 3, top cover; 31, air inlet ring; 32, exhaust ring; 4, air inlet pipe; 5, exhaust pipe; 6, water pipe; 7, rotating assembly; 71, cross-shaped connecting rod; 72, ring block; 721, ring groove; 73, motor; 74, rotating shaft; 741, limit block; 75, fan blade connecting block; 76, fan ring. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1 and Figure 2 As shown, this embodiment proposes an air-supplementing fume hood, including an operating table 1, a horizontal block 2 is fixedly connected to the inner wall of the operating table 1, a top cover 3 is fixedly connected to the upper end of the operating table 1, an air inlet pipe 4 and an exhaust pipe 5 are penetrated and connected to the upper end of the top cover 3, a water pipe 6 is connected to one side of the operating table 1, and a rotating component 7 is arranged inside the operating table 1.

[0024] like Figure 1 As shown, a plurality of water outlets 21 are evenly arranged on one side of the horizontal block 2, and the water pipe 6 passes through the interior of the operating table 1 and the horizontal block 2 and is connected to the water outlet 21. The water outlet 21 can spray water into the interior of the operating table 1, so that the dust inside the operating table 1 is attached to the dust.

[0025] like Figure 2 As shown, one end of the top cover 3 is fixedly connected with an air inlet ring 31 and an air exhaust ring 32, the air inlet ring 31 is connected with the air inlet pipe 4, and the air exhaust ring 32 is connected with the exhaust pipe 5, the air inlet pipe 4 is used to supply air to the inside of the operating table 1, and the exhaust pipe 5 is used to exhaust the air inside the operating table 1.

[0026] like Figure 3 As shown, a rotating shaft 74 is rotatably connected to the interior of the ring block 72, the lower end of the rotating shaft 74 is connected to the motor 73, a limit block 741 is fixedly connected to the outer surface of the rotating shaft 74, the limit block 741 is rotatably connected to the annular groove 721, a fan blade connecting block 75 is fixedly connected to the outer surface of the rotating shaft 74, one end of the fan blade connecting block 75 is fixedly connected to a fanning ring 76, the fan blade connecting block 75 and the fanning ring 76 are used to diffuse the wind to the interior of the operating table 1.

[0027] like Figure 4 As shown, the rotating assembly 7 includes a cross-shaped connecting rod 71 fixedly connected to the inner wall of the air inlet ring 31, one end of the cross-shaped connecting rod 71 is fixedly connected to a ring block 72, the inner wall of the ring block 72 is provided with a ring groove 721, the lower end of the ring block 72 is fixedly connected to a motor 73, the motor 73 is used to drive the rotating shaft 74 to rotate, and the ring groove 721 is used to limit the limit block 741 to prevent the rotating shaft 74 from escaping from the inside of the ring block 72.

[0028] The working principle and use instructions of the utility model are as follows: when it is necessary to replenish air for the fume hood, first the staff needs to allow the outside air to enter the interior of the operating table 1 through the air inlet pipe 4 and the air inlet ring 31, and then the staff can control the motor 73 to start, so that the motor 73 drives the rotating shaft 74 to rotate inside the ring block 72. Because the limit block 741 is located inside the ring groove 721, the rotating shaft 74 will not deviate inside the ring block 72, and the rotating shaft 74 will not separate from the ring block 72. The rotation of the rotating shaft 74 will synchronously drive the fan blade connecting block 75 and the fan ring 76 to rotate, and as the fan blade connecting block 75 and the fan ring 76 rotate, the air inlet can be The wind transmitted to the inside of the operating table 1 by the pipe 4 is fully diffused inside the operating table 1, so that the outside wind is quickly and evenly diffused inside the operating table 1, and then the wind inside the operating table 1 can be sucked out and transmitted to the outside through the exhaust ring 32 and the exhaust pipe 5. When the air is replenished inside the operating table 1, it is easy to drive dust into the inside of the operating table 1. At this time, the staff can control the water outlet 21 through the water pipe 6 to evenly spray a small amount of water into the inside of the operating table 1. The water will adhere to the dust, so that the dust falls on the inner wall of the operating table 1, and cannot float in the air inside the operating table 1, so as to facilitate the cleaning of the dust inside the operating table 1.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air supply type fume hood, comprising an operating table (1), a horizontal block (2) is fixedly connected to the inner wall of the operating table (1), a top cover (3) is fixedly connected to the upper end of the operating table (1), an air inlet pipe (4) and an air exhaust pipe (5) are connected through the upper end of the top cover (3), and a water pipe (6) is connected to one side of the operating table (1), characterized in that: A rotating assembly (7) is arranged inside the operating table (1); An air inlet ring (31) and an air exhaust ring (32) are fixedly connected to one end of the top cover (3); the air inlet ring (31) is connected to an air inlet pipe (4); and the air exhaust ring (32) is connected to an air exhaust pipe (5); the rotating assembly (7) comprises a cross-shaped connecting rod (71) fixedly connected to the inner wall of the air inlet ring (31); one end of the cross-shaped connecting rod (71) is fixedly connected to a ring block (72); and an annular groove (721) is provided on the inner wall of the ring block (72).

2. The air supply type fume hood according to claim 1, characterized in that: A plurality of water outlets (21) are evenly arranged on one side of the transverse block (2), and the water pipe (6) passes through the interior of the operating table (1) and the transverse block (2) and is connected to the water outlets (21).

3. The air supply type fume hood according to claim 2, characterized in that: The lower end of the ring block (72) is fixedly connected to a motor (73), and a rotating shaft (74) is rotatably connected to the interior of the ring block (72), and the lower end of the rotating shaft (74) is connected to the motor (73).

4. The air supply type fume hood according to claim 3, characterized in that: A limit block (741) is fixedly connected to the outer surface of the rotating shaft (74), and the limit block (741) is rotatably connected to the annular groove (721).

5. The air supply type fume hood according to claim 3, characterized in that: A fan blade connection block (75) is fixedly connected to the outer surface of the rotating shaft (74), and a fanning ring (76) is fixedly connected to one end of the fan blade connection block (75).

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