Clean room airborne particle detection apparatus

Abstract

The utility model relates to the field of suspended particle detection, concretely relates to a clean room suspended particle detection device, including the placement seat and the detection box, the inside end of placement seat is arranged with the detection box, the upper end surface of detection box installs the air extractor, the upper end surface of air extractor installs the lower position pipe, the outside wall of lower position pipe is installed with the upper position pipe through the way of sliding fit, the upper end surface of upper position pipe installs the air inlet, the upper end surface of detection box installs the right position cavity, the inside wall of right position cavity is installed with the right position screw through the thread rotation, the outside wall of right position screw is rotatably installed with the right position ring, the outside wall of right position ring is connected with the lower position pipe through the right position rod, the upper end surface of air inlet is installed with the sealing cover through the way of screwing, the right position screw structure is used in the utility model, thereby driving the upper position pipe to move up and down and adjusting, can carry out the detection processing to the position of indoor different height, makes the detection data more diversified and accurate.

Description

Technical Field

[0001] This utility model relates to the field of suspended particle detection, specifically to a device for detecting suspended particles in a cleanroom. Background Technology

[0002] A cleanroom is a well-sealed space where parameters such as air cleanliness, temperature, humidity, pressure, and noise are controlled as needed. The development of cleanrooms is closely linked to modern industry and cutting-edge technology. Environmental requirements in industries such as precision machinery (e.g., gyroscope and miniature bearing manufacturing) and semiconductors (e.g., large-scale integrated circuit production) have spurred the development of cleanroom technology. Therefore, the testing of cleanrooms often requires the use of particulate matter detection.

[0003] Chinese patent discloses a cleanroom suspended particle detection device (authorization announcement number CN 216208402U). This patented technology can solve the problems of most existing suspended particle detection devices, such as large size, inconvenience in disassembly and use, lack of unidirectional air intake structure, frequent gas leakage, and abnormal detection data. Furthermore, most existing suspended particle detection devices have poor air intake capacity, making them inconvenient to use. However, this patent still has the following problems:

[0004] The air intake pipe in this patent is a fixed pipe structure, which cannot be adjusted in height according to the testing requirements, resulting in a lack of experimental data. When adjusting the height of the air intake pipe, it is impossible to accurately control the movement height of the air intake pipe. When the testing box is pushed through the placement frame, the testing box is prone to sliding back and forth, and there is a lack of a limiting structure for it. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a cleanroom suspended particle detection device, including a placement seat and a detection box. The detection box is arranged on the inner end of the placement seat. An air extractor is installed on the upper end face of the detection box. A lower tube is installed on the upper end face of the air extractor. An upper tube is installed on the outer wall of the lower tube by a sliding fit. An air intake is installed on the upper end face of the upper tube. A right cavity is installed on the upper end face of the detection box. A right screw is rotatably installed on the inner wall of the right cavity by a thread. A right ring is rotatably installed on the outer wall of the right screw by a bearing. The right ring is connected to the outer wall of the lower tube by a right rod. A sealing cover is installed on the upper end face of the air intake by a screw connection.

[0006] Preferably, a fixed base is installed on the upper end face of the detection box, a through hole is opened on the left end face of the fixed base, a scale is installed on the right end face of the fixed base, and a right position frame is installed on the outer end of the right position ring, with the right position frame passing through the through hole.

[0007] Preferably, the upper end face of the detection box is equipped with a fixed cavity, an adjusting screw is installed at the bottom of the fixed cavity, a handle is installed on the upper end face of the adjusting screw, a first slider is screwed to the outer side wall of the adjusting screw, a positioning plate is installed on the front end face of the first slider, and a right positioning frame is arranged above the positioning plate.

[0008] Preferably, a left cavity is arranged to the left of the right cavity, and a push rod is installed on the inner wall of the left cavity in a sliding fit manner. A left frame is installed on the upper end face of the push rod, and the left frame is installed on the outer wall of the upper tube.

[0009] Preferably, the bottom of the placement seat is screwed to the detection box by fixing bolts, the fixing bolts are arranged symmetrically on the left and right, the bottom of the placement seat is equipped with moving wheels near the four corners, and the rear end face of the placement seat is equipped with a handle.

[0010] Preferably, the left and right side walls of the placement seat are fitted with C-shaped seats by sliding fit, and straight racks are symmetrically installed on the upper end face of the C-shaped seats. Adjusting gears are rotatably installed on the upper end of the straight racks by meshing, and the adjusting gears are rotatably installed on the left and right side walls of the placement seat by bearings.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. This utility model adopts a right-side screw structure, which drives the upper tube to move up and down for adjustment, enabling the detection and processing of positions at different heights indoors, making the detection data more diverse and accurate.

[0013] 2. This utility model adopts a right-side frame and scale structure, which can accurately control the adjustment height of the upper tube, thereby further improving the accuracy of the test results. Attached Figure Description

[0014] Figure 1 This is a front view of the structure of a cleanroom suspended particle detection device provided in an embodiment of this application;

[0015] Figure 2 This is a right view of the structure of a cleanroom suspended particle detection device provided in an embodiment of this application;

[0016] Figure 3 This is a cross-sectional front view of a cleanroom suspended particle detection device provided in an embodiment of this application;

[0017] Figure 4 This is a right-section view of a cleanroom suspended particle detection device provided in an embodiment of this application;

[0018] Figure 5 This application provides a cleanroom suspended particle detection device. Figure 4 A magnified view of a portion of region A in the middle;

[0019] In the diagram: 1. Placement seat; 2. Detection box; 11. Evacuator; 12. Lower tube; 13. Upper tube; 14. Inlet; 15. Right cavity; 16. Right screw; 17. Right ring; 18. Right rod; 19. Fixing seat; 21. Scale; 22. Right frame; 23. Fixing cavity; 24. Adjusting screw; 25. Positioning plate; 26. Left cavity; 27. Left frame; 28. Fixing bolt; 29. ​​Caster wheel; 291. Sealing cover; 292. C-shaped seat; 293. Straight rack; 294. Adjusting gear. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0021] Please see Figures 1-5 This embodiment provides a cleanroom suspended particle detection device, including a placement seat 1 and a detection box 2. The detection box 2 is arranged on the inner end of the placement seat 1. An exhaust fan 11 is installed on the upper end of the detection box 2. A lower tube 12 is installed on the upper end of the exhaust fan 11. An upper tube 13 is installed on the outer wall of the lower tube 12 through a sliding fit. An air intake 14 is installed on the upper end of the upper tube 13. A right cavity 15 is installed on the upper end of the detection box 2. A right screw 16 is installed on the inner wall of the right cavity 15 through a threaded rotation. The outer wall of the right screw 16 is connected by a bearing. A right-position ring 17 is rotatably installed, and the right-position ring 17 is connected to the outer wall of the lower tube 12 via a right-position rod 18. A sealing cover 291 is installed on the upper end face of the air intake 14 by screw connection. During operation, the air pump 11 is started, and the suspended particles in the room enter through the air intake 14, and then pass through the upper tube 13 and the lower tube 12 to enter the detection box 2 for detection and processing. Rotating the right-position screw 16 drives the upper tube 13 to move up and down for adjustment, which can detect and process positions at different heights in the room, making the detection data more diverse and accurate.

[0022] A fixed base 19 is installed on the upper end face of the detection box 2. A through hole is opened on the left end face of the fixed base 19. A scale 21 is installed on the right end face of the fixed base 19. A right position frame 22 is installed on the outer end of the right position ring 17. The right position frame 22 passes through the through hole. When the upper tube 13 moves up and down for adjustment during operation, the right position frame 22 moves accordingly and points to the scale 21, thereby accurately controlling the adjustment height of the upper tube 13.

[0023] The upper end face of the detection box 2 is equipped with a fixed cavity 23. An adjusting screw 24 is installed at the bottom of the fixed cavity 23. A handle is installed on the upper end face of the adjusting screw 24. A first slider is screwed to the outer wall of the adjusting screw 24. A positioning plate 25 is installed on the front end face of the first slider. A right position bracket 22 is arranged above the positioning plate 25. During operation, the adjusting screw 24 is rotated by the handle, which drives the positioning plate 25 to move up and down, thereby fixing the adjustment height of the upper tube 13 in advance. When rotating the right position screw 16, there is no need to observe the position of the scale line while rotating, thus reducing the difficulty of operation.

[0024] A left cavity 26 is arranged to the left of the right cavity 15. A push rod is installed on the inner wall of the left cavity 26 in a sliding fit manner. A left frame 27 is installed on the upper end face of the push rod. The left frame 27 is installed on the outer wall of the upper tube 13. With the left cavity 26 structure, the push rod supports the upper tube 13 and ensures the stability of the upper tube 13 when it moves up and down.

[0025] The bottom of the placement seat 1 is screwed to the detection box 2 by fixing bolts 28. The fixing bolts 28 are arranged symmetrically on the left and right. The bottom of the placement seat 1 is equipped with moving wheels 29 near the four corners. The rear end face of the placement seat 1 is equipped with a handle. During operation, the moving wheels 29 make it easy to push the placement seat 2 to move the detection box 2 in the clean room. The fixing bolts 28 are used to limit and fix the detection box 2, preventing the detection box 2 from sliding back and forth.

[0026] The left and right side walls of the placement seat 1 are fitted with C-shaped seats 292 by sliding fit. Spur racks 293 are symmetrically installed on the upper surface of the C-shaped seats 292. Adjusting gears 294 are rotatably installed on the upper end of the spur racks 293 by meshing. The adjusting gears 294 are rotatably installed on the left and right side walls of the placement seat 1 by bearings. During operation, the C-shaped seats 292 limit the bottom of the fixing bolts 28 to prevent them from loosening and falling off. By rotating the adjusting gears 294, the spur racks 293 are driven to move back and forth, and the C-shaped seats 292 move back and forth, which facilitates the disassembly of the fixing bolts 28.

[0027] In actual operation, the air extractor 11 is started, and the suspended particles in the room enter through the air intake 14. They then pass through the upper tube 13 and the lower tube 12 and enter the detection box 2 for detection and processing. Rotating the right screw 16 drives the upper tube 13 to move up and down for adjustment, which can detect and process positions at different heights in the room, making the detection data more diverse and accurate.

[0028] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A cleanroom suspended particle detection device, comprising a placement base (1) and a detection box (2), characterized in that, The inner end of the placement seat (1) is provided with a detection box (2). An air pump (11) is installed on the upper end of the detection box (2). A lower tube (12) is installed on the upper end of the air pump (11). An upper tube (13) is installed on the outer wall of the lower tube (12) by means of sliding fit. An air inlet (14) is installed on the upper end of the upper tube (13). A right cavity (15) is installed on the upper end of the detection box (2). A right screw (16) is installed on the inner wall of the right cavity (15) by means of thread rotation. A right ring (17) is installed on the outer wall of the right screw (16) by means of bearing rotation. The right ring (17) is connected to the outer wall of the lower tube (12) by means of right rod (18).

2. The cleanroom suspended particle detection device according to claim 1, characterized in that... The upper end face of the detection box (2) is equipped with a fixed seat (19). A through hole is opened on the left end face of the fixed seat (19). A scale (21) is installed on the right end face of the fixed seat (19). A right position frame (22) is installed on the outer end of the right position ring (17). The right position frame (22) passes through the through hole.

3. The cleanroom suspended particle detection device according to claim 1, characterized in that, The upper end face of the detection box (2) is equipped with a fixed cavity (23), and an adjusting screw (24) is installed at the bottom of the fixed cavity (23). A handle is installed on the upper end face of the adjusting screw (24). A first slider is screwed to the outer wall of the adjusting screw (24). A positioning plate (25) is installed on the front end face of the first slider. A right position frame (22) is arranged above the positioning plate (25).

4. The cleanroom suspended particle detection device according to claim 1, characterized in that, A left cavity (26) is arranged to the left of the right cavity (15). A push rod is installed on the inner wall of the left cavity (26) in a sliding fit manner. A left frame (27) is installed on the upper end face of the push rod. The left frame (27) is installed on the outer wall of the upper tube (13).

5. A cleanroom suspended particle detection device according to claim 4, characterized in that, The bottom of the placement seat (1) is screwed to the detection box (2) by fixing bolts (28). The fixing bolts (28) are arranged symmetrically on the left and right. The bottom of the placement seat (1) is equipped with moving wheels (29) near the four corners. The rear end face of the placement seat (1) is equipped with a handle.

6. The cleanroom suspended particle detection device according to claim 1, characterized in that, A sealing cap (291) is installed on the upper end face of the air intake (14) by means of screw connection.

7. The cleanroom suspended particle detection device according to claim 1, characterized in that, The left and right side walls of the placement seat (1) are fitted with a U-shaped seat (292) by sliding fit. A straight rack (293) is symmetrically installed on the upper surface of the U-shaped seat (292). An adjusting gear (294) is installed on the upper end of the straight rack (293) by meshing and rotating. The adjusting gear (294) is rotatably installed on the left and right side walls of the placement seat (1) by bearing.

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