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CN-224215503-U - Exhaust box for clean room

CN224215503UCN 224215503 UCN224215503 UCN 224215503UCN-224215503-U

Abstract

The utility model relates to an exhaust box for a clean room, which comprises a shell, wherein the bottom of the shell is connected with a first air inlet through a trapezoid frame, a first filter frame is inserted into the first air inlet, an air pump is arranged at the top of the shell, an air outlet is arranged on the air pump, rotating shafts are symmetrically arranged on the left side of the inner wall of the shell, an upper baffle plate is arranged on the left side of the rotating shaft, a lower baffle plate is arranged on the right side of the rotating shaft, second filter frames are arranged at the tops of the upper baffle plate and the lower baffle plate, and second air inlets are arranged on the left side and the right side of the shell in a penetrating manner. According to the utility model, through the rotation of the upper baffle plate and the lower baffle plate, the relative positions of the second filter frame and the second air inlet can be adjusted, so that the air inlet area can be flexibly controlled, the design can flexibly adjust the filter mode according to the actual operation requirement of the clean room, adapt to the pollutant types and concentration differences of different process stages, ensure the stability of the filter effect, avoid repeated circulating purification caused by insufficient filter capacity, and reduce the energy consumption and the operation cost.

Inventors

  • SU JIANHAI

Assignees

  • 东莞雅宁净化科技有限公司

Dates

Publication Date
20260508
Application Date
20250418

Claims (5)

  1. 1. The utility model provides an exhaust box for toilet, includes the shell, the shell bottom is connected with first air intake through trapezoidal frame, peg graft in the first air intake has first filter frame, the air pump is installed at the shell top, install the air outlet on the air pump, its characterized in that, shell inner wall bilateral symmetry is equipped with the pivot, the left side install the overhead gage in the pivot, the right side install down the baffle in the pivot, overhead gage and lower baffle top all are equipped with the second filter frame, the shell left and right sides link up and are equipped with the second air intake.
  2. 2. The exhaust box for a clean room according to claim 1, wherein the outer sides of the bottoms of the upper baffle plate and the lower baffle plate are respectively provided with a fixed block, the rear side of the inner wall of the trapezoid frame is positioned at the position below the inner side of the fixed block, the inner side of the bottom of the rotating block is provided with a first shaft, the outer side of the bottom of the rotating block is provided with a second shaft, and the bottom of the rear side of the trapezoid frame is rotatably provided with a swinging block.
  3. 3. The exhaust box for a clean room according to claim 2, wherein a first swing rod is connected between two ends of the swing block and the first shaft, respectively, and a second swing rod is connected between each of the fixed blocks and the adjacent second shaft.
  4. 4. The exhaust box for a clean room according to claim 2, wherein a driving member is rotatably provided at the rear side of the inner wall of the trapezoid frame, and a driving rod of the driving member is connected to the lower end of the swing block.
  5. 5. The exhaust box for a clean room according to claim 1, wherein the rear sides of the upper baffle plate and the lower baffle plate are respectively provided with a positioning plate, and the rear side of the inner wall of the shell is provided with a positioning block.

Description

Exhaust box for clean room Technical Field The utility model belongs to the technical field of exhaust purification, and particularly relates to an exhaust box for a clean room. Background In a clean room environment, an exhaust system is a key device for maintaining air cleanliness and controlling pollutant emission, and a main core component of the exhaust system is an exhaust box, and is mainly used for efficiently filtering and then exhausting indoor polluted air, so that the clean room meets the requirement of the particulate matter concentration of an ISO standard (such as ISO 14644). The traditional exhaust box generally adopts a fixed filtering structure (such as a single-layer HEPA/ULPA filter screen or an active carbon adsorption layer), has limited filtering efficiency and air quantity adjusting capability, and cannot flexibly adjust the filtering mode when the operation requirements of a clean room change, such as the types and concentration differences of pollutants in different process stages, so that the filtering effect is unstable, and when part of pollutants penetrate through the filter screen, repeated circulating purification is required, so that the energy consumption and the operation cost are inevitably increased. Disclosure of utility model The utility model aims to provide an exhaust box for a clean room, which solves the problems in the prior art. In order to achieve the purpose, the air exhaust box for the clean room comprises a shell, wherein the bottom of the shell is connected with a first air inlet through a trapezoid frame, a first filter frame is inserted into the first air inlet, an air pump is arranged at the top of the shell, an air outlet is arranged on the air pump, rotating shafts are symmetrically arranged on the inner wall of the shell left and right, an upper baffle is arranged on the rotating shaft on the left side, a lower baffle is arranged on the rotating shaft on the right side, second filter frames are arranged at the tops of the upper baffle and the lower baffle, and second air inlets are arranged on the left side and the right side of the shell in a penetrating manner. Preferably, the upper baffle and the outer side of the bottom of the lower baffle are both provided with fixed blocks, the rear side of the inner wall of the trapezoid frame is positioned at the position below the inside of the fixed blocks and is provided with rotating blocks, the inner side of the bottom of the rotating blocks is provided with a first shaft, the outer side of the bottom of the rotating blocks is provided with a second shaft, and the bottom of the rear side of the inside of the trapezoid frame is rotationally provided with a swinging block. Preferably, a first swing rod is connected between the two ends of the swing block and the first shaft respectively, and a second swing rod is connected between each fixed block and the adjacent second shaft. Preferably, a driving piece is rotatably arranged on the rear side of the inner wall of the trapezoid frame, and a driving rod of the driving piece is connected with the lower end of the swing block. Preferably, the rear sides of the upper baffle plate and the lower baffle plate are respectively provided with a positioning plate, and the rear side of the inner wall of the shell is provided with a positioning block. Compared with the prior art, the utility model has the beneficial effects that the design of the trapezoid frame can play a role in uniformly guiding airflow to filter, improving the filtering effect, reducing turbulence and pressure loss and prolonging the service life of the first filter frame; According to the utility model, through the rotation of the upper baffle plate and the lower baffle plate, the relative positions of the second filter frame and the second air inlet can be adjusted, so that the air inlet area can be flexibly controlled, the design can flexibly adjust the filter mode according to the actual operation requirement of the clean room, adapt to the pollutant types and concentration differences of different process stages, ensure the stability of the filter effect, avoid repeated circulating purification caused by insufficient filter capacity, and reduce the energy consumption and the operation cost; The exhaust box adopts the multi-layer filtering structure of the first filtering frame and the second filtering frame, can effectively filter pollutants with different particle diameters in air, improves the filtering efficiency, and ensures that a clean room meets the requirement of the concentration of the particles in an ISO standard (such as ISO 14644). Drawings FIG. 1 is a schematic perspective view of the present utility model; FIG. 2 is a partial exploded view of the present utility model; FIG. 3 is a cross-sectional view of the present utility model; fig. 4 is a schematic view of a partial perspective structure of the present utility model. In the figure, the reference numerals comprise a shell 1, a