Integrated closed chamber ventilation system

Abstract

The utility model relates to the technical field of closed chamber ventilation, in particular to an integrated closed chamber ventilation system which comprises a cabinet base, a negative pressure cavity set is fixedly installed at the edge of the upper end of the cabinet base, and an air exhaust assembly is placed at the upper end of the negative pressure cavity set. When the device is used, the conical cavity is separated from the front part and the rear part through the negative pressure cavity plate, so that the negative pressure at the top is converted into suction through the negative pressure air inlet hole, and the exhaust gas of an experiment on an open counter is more favorably extracted.

Description

Technical Field

[0001] The utility model relates to the technical field of closed room ventilation, in particular to an integrated closed room ventilation system. Background Art

[0002] In the prior art, not much attention has been paid to the ventilation of closed rooms. Some people who are more careful will use fresh air systems to make the indoor air cleaner. However, for chemical reactions in many laboratories, the waste gas generated needs to be discharged outdoors in a timely manner to prevent harmful air from causing long-term damage to the upper respiratory tract of workers.

[0003] The ventilation system used in the closed room is mostly a fume hood. Since the common fume hood is a ceiling fan, it is easy to cause the problem of escape during the extraction process. Therefore, those skilled in the art provide an integrated closed room ventilation system to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an integrated closed room ventilation system, including a cabinet seat, a negative pressure chamber group is fixedly installed along the edge of the upper end of the cabinet seat, and an exhaust assembly is placed on the upper end of the negative pressure chamber group;

[0005] The negative pressure chamber group includes an open counter, a conical cavity, a baffle, a lighting tube, a negative pressure outlet, a stand, a negative pressure chamber plate, a negative pressure air inlet and a positioning ring. The open counter is a front-open cabinet cavity, a conical cavity is opened in the middle of the upper end of the open counter, a stand is placed on the countertop of the open counter, a positioning ring is sleeved on the stand, a negative pressure chamber plate is fixedly installed at the rear end of the positioning ring, the conical cavity is divided into front and back by the negative pressure chamber plate, a plurality of negative pressure air inlets are opened at the upper end of the negative pressure chamber plate, the negative pressure chamber plate will rotate on the stand through the positioning ring, so that the cavity between the negative pressure chamber plate and the open counter is increased, and the top cavity is transformed into the negative pressure at the side end of the open counter, which makes it easier to negatively pressure the exhaust gas generated during the experiment.

[0006] Preferably, a baffle is fixedly mounted on the upper front end of the open counter, and a lighting tube is fixedly mounted on the inner end surface of the baffle.

[0007] Preferably, the upper end of the conical cavity is a negative pressure outlet.

[0008] Preferably: the exhaust assembly includes a sliding seat, a sliding cavity, a damping strip, an air outlet, a negative pressure fan and an aluminum foil exhaust pipe, a sliding cavity is opened in the middle of the sliding seat, an air outlet is opened in the middle of the upper end of the sliding seat, and the air outlet is connected to the sliding cavity.

[0009] Preferably, a plurality of damping strips are symmetrically installed on the inner wall of the sliding cavity, and a negative pressure fan is arranged in the sliding cavity. The negative pressure fan can be rubbed by the damping strips to ensure the lifting and lowering of the negative pressure fan in the sliding cavity.

[0010] Preferably, the negative pressure fan is provided with aluminum foil pipes at both upper and lower ends, the upper aluminum foil pipe is connected to the air outlet, and the lower aluminum foil pipe is connected to the negative pressure outlet.

[0011] Technical effects and advantages of the utility model:

[0012] 1. When the utility model is used, the conical cavity is divided into front and rear parts by the negative pressure cavity plate, so that the negative pressure at the top is transformed into air suction through the negative pressure air inlet hole, which is more conducive to extracting the waste gas tested on the open counter.

[0013] 2. When the utility model is used, the negative pressure fan is pulled downward in the sliding cavity, so that the negative pressure fan can stably extract pressure in the conical cavity to ensure the negative pressure exhaust efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure provided by this application;

[0015] Figure 2 It is a structural schematic diagram of the negative pressure chamber group provided by the present application;

[0016] Figure 3 It is a structural schematic diagram of the air extraction assembly provided in this application;

[0017] In the figure: 1. cabinet base; 2. negative pressure chamber group; 3. exhaust assembly;

[0018] 21. Open counter; 22. Cone cavity; 23. Baffle; 24. Lighting tube; 25. Negative pressure outlet; 26. Stand; 27. Negative pressure cavity plate; 28. Negative pressure air inlet; 29. ​​Positioning ring;

[0019] 31. Sliding seat; 32. Sliding cavity; 33. Damping strip; 34. Air outlet; 35. Negative pressure fan; 36. Aluminum foil exhaust pipe. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0021] See also Figures 1 to 3 In this embodiment, an integrated closed room ventilation system is provided, including a cabinet base 1, a negative pressure chamber group 2 is fixedly installed along the edge of the upper end of the cabinet base 1, and an exhaust assembly 3 is placed on the upper end of the negative pressure chamber group 2;

[0022] The negative pressure chamber group 2 comprises an open counter 21, a conical cavity 22, a baffle 23, a lighting tube 24, a negative pressure outlet 25, a stand 26, a negative pressure cavity plate 27, a negative pressure air inlet 28 and a positioning ring 29. The open counter 21 is a front-opening cabinet cavity. The baffle 23 is fixedly installed on the upper front end of the open counter 21, and the lighting tube 24 is fixedly installed on the inner end surface of the baffle 23. The middle part of the upper end of the open counter 21 is provided with a conical cavity 22, and the upper end of the conical cavity 22 is a negative pressure outlet 25. A stand 26 is placed on the table of the open counter 21. A positioning collar 29 is sleeved on the frame 26, and a negative pressure cavity plate 27 is fixedly installed at the rear end of the positioning collar 29. The conical cavity 22 is separated into front and rear parts by the negative pressure cavity plate 27. A plurality of negative pressure air inlet holes 28 are provided at the upper end of the negative pressure cavity plate 27. The negative pressure cavity plate 27 is rotated on the frame 26 through the positioning collar 29, so that the cavity between the negative pressure cavity plate 27 and the open counter 21 is increased, and the top cavity is transformed into the negative pressure at the side end of the open counter 21, which makes it easier to negatively inhale and discharge the waste gas generated during the experiment;

[0023] The exhaust assembly 3 includes a sliding seat 31, a sliding cavity 32, a damping strip 33, an air outlet 34, a negative pressure fan 35 and an aluminum foil row pipe 36. The sliding seat 31 is provided with a sliding cavity 32 in the middle, and an air outlet 34 is provided in the middle of the upper end of the sliding seat 31. The air outlet 34 is connected to the sliding cavity 32. A plurality of damping strips 33 are symmetrically installed on the inner wall of the sliding cavity 32. A negative pressure fan 35 is arranged in the sliding cavity 32. The negative pressure fan 35 can be rubbed by the damping strip 33 to ensure that the negative pressure fan 35 rises and falls in the sliding cavity 32. Aluminum foil row pipes 36 are provided at both upper and lower ends of the negative pressure fan 35. The upper aluminum foil row pipe 36 is connected to the air outlet 34, and the lower aluminum foil row pipe 36 is connected to the negative pressure outlet 25.

[0024] The working principle of the utility model is:

[0025] When the utility model is used, the conical cavity 22 is separated into front and rear parts by the negative pressure cavity plate 27, so that the negative pressure at the top is transformed to be sucked in through the negative pressure air inlet hole 28, which is more conducive to extracting the waste gas tested on the open counter 21. At the same time, the negative pressure fan 35 is pulled downward in the sliding cavity 32, so that the negative pressure fan 35 can stably extract the pressure in the conical cavity 22 to ensure the negative pressure exhaust efficiency.

[0026] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. An integrated closed room ventilation system, comprising a cabinet (1), characterized in that: A negative pressure chamber group (2) is fixedly mounted along the edge of the upper end of the cabinet seat (1), and an air extraction component (3) is placed on the upper end of the negative pressure chamber group (2); The negative pressure chamber group (2) comprises an open counter (21), a conical cavity (22), a baffle (23), a lighting tube (24), a negative pressure outlet (25), a stand (26), a negative pressure chamber plate (27), a negative pressure air inlet (28) and a positioning collar (29); the open counter (21) is a front-opening chamber, a conical cavity (22) is provided in the middle of the upper end of the open counter (21), a stand (26) is placed on the table top of the open counter (21), a positioning collar (29) is sleeved on the stand (26), and a negative pressure chamber plate (27) is fixedly mounted on the rear end of the positioning collar (29).

2. An integrated closed room ventilation system according to claim 1, characterized in that: A baffle (23) is fixedly mounted on the upper front end of the open counter (21), and a lighting tube (24) is fixedly mounted on the inner end surface of the baffle (23).

3. An integrated closed room ventilation system according to claim 2, characterized in that: The upper end of the conical cavity (22) is a negative pressure outlet (25).

4. The integrated closed room ventilation system according to claim 1, characterized in that: The air extraction component (3) comprises a sliding seat (31), a sliding cavity (32), a damping strip (33), an air outlet (34), a negative pressure fan (35) and an aluminum foil pipe (36); the sliding seat (31) has a sliding cavity (32) in the middle, the sliding seat (31) has an air outlet (34) in the middle of the upper end, and the air outlet (34) is connected to the sliding cavity (32).

5. An integrated closed room ventilation system according to claim 4, characterized in that: A plurality of damping strips (33) are symmetrically mounted on the inner wall of the sliding cavity (32), and a negative pressure fan (35) is arranged in the sliding cavity (32).

6. An integrated closed room ventilation system according to claim 5, characterized in that: Aluminum foil pipes (36) are provided at both upper and lower ends of the negative pressure fan (35); the upper aluminum foil pipe (36) is connected to the air outlet (34), and the lower aluminum foil pipe (36) is connected to the negative pressure outlet (25).

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