Dust particle counter

Abstract

The utility model belongs to the field of particle counters, and particularly relates to a dust particle counter which comprises a counter body, an exhaust pipe is fixedly connected to the middle of the upper end of the counter body, a protective cover is connected to the outer side of the exhaust pipe in a sliding mode, a dismounting mechanism is arranged at the upper end of the counter body, and a displayer is fixedly installed on the upper portion of the front face of the counter body. A button is installed on the lower portion of the front face of the counter, and a sealing ring is fixedly connected to the upper end of the counter. According to the utility model, the overturning frame, the extension pipe, the screw rod and other structures are additionally arranged on the counter, so that a holding part can be extended through damping hinge between the overturning frame and the counter as well as between the overturning frame and the extension pipe in the use process; and meanwhile, the positions of the handle and the extension pipe can be adjusted again through thread fit between the screw rod and the internal thread pipe, so that the use height of the counter can be adjusted in a variety of ways, and the collection range can be effectively widened.

Description

Technical Field

[0001] This utility model relates to the field of particle counter technology, specifically a dust particle counter. Background Technology

[0002] A dust particle counter is a precision instrument used to measure the quantity and size distribution of suspended particulate matter (such as dust, microorganisms, and aerosols) in the air. It is widely used in cleanrooms, pharmaceutical manufacturing, electronics industry, and environmental monitoring. However, the counting process requires changing specific suction heads. Connecting the suction head to the counter's suction tube involves a long thread, resulting in low replacement efficiency and making it inconvenient to collect air samples from higher altitude areas, thus affecting the counter's practicality. Therefore, improvements to the existing technology are needed. Utility Model Content

[0003] The purpose of this invention is to provide a dust particle counter that solves the problems of inconvenient disassembly of the protective cover and suction head and poor practicality due to the low collection range.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a dust particle counter, comprising a counter, an exhaust pipe fixedly connected to the upper middle part of the counter, a protective cover slidably connected to the outer side of the exhaust pipe, a disassembly and assembly mechanism provided at the upper end of the counter, a display fixedly mounted on the upper front of the counter, a button mounted on the lower front of the counter, a sealing ring fixedly connected to the upper end of the counter, a flip frame mounted on the back of the counter via a damping shaft, an extension tube mounted inside the flip frame via a damping shaft, a connecting strip fixedly connected to the bottom inner side of the extension tube, an internally threaded tube fixedly connected inside the connecting strip, a screw connected inside the internally threaded tube via a Luwen, a knob fixedly connected to the lower end of the screw, a handle mounted on the lower end of the knob via a bearing, and a hemispherical locking block fixedly connected to the lower end of the counter.

[0005] Preferably, the sealing ring is fixedly connected to the suction pipe and slidably connected to the protective cover, and the sealing ring can seal the connection between the suction pipe and the counter.

[0006] Preferably, a rubber disc is fixedly connected to the upper end of the screw, and the rubber disc is movably connected to the inner wall of the extension tube. The rubber disc can increase the rotational resistance of the screw.

[0007] Preferably, the hemispherical locking block engages with the handle, the handle contacts the counter, and the knob contacts the extension tube. The hemispherical locking block can lock and limit the handle.

[0008] Preferably, the disassembly and assembly mechanism includes positioning columns. Two positioning columns symmetrically distributed front and back are fixedly connected to the upper end of the counter. A mounting plate is fixedly connected to the upper end of the counter. A connecting pin is slidably connected inside the mounting plate. A limit bracket is fixedly connected to the end of the connecting pin near the protective cover. A spring positioning column is provided on the outside of the connecting pin to limit the movement of the protective cover.

[0009] Preferably, the positioning post is slidably connected to the protective cover, the limiting frame is slidably connected to the counter, and the limiting frame is slidably connected to the protective cover, wherein the limiting frame can limit the movement of the protective cover.

[0010] Preferably, one end of the spring is fixedly connected to the mounting plate, and the other end of the spring is fixedly connected to the limiting frame. The spring can automatically reset the limiting frame through its elastic force.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model adds a flip frame, extension tube and screw to the counter. During use, the holding part can be extended by the damping hinge between the flip frame and the counter and the flip frame and extension tube. At the same time, the position of the handle and extension tube can be readjusted by the threaded engagement between the screw and the internal thread tube. Thus, the height of the counter can be adjusted in multiple ways, which can effectively improve the collection range.

[0013] 2. This utility model adds a limiting frame, connecting nails, and positioning posts to the counter. During use, the protective cover is slid to the outside of the suction pipe, and then the spring force drives the limiting frame to slide to the outside of the protective cover, thus limiting the protective cover. When disassembly and replacement are required, simply remove the limiting frame from the protective cover to release the limitation on the protective cover, thereby making the installation and disassembly of the protective cover and the suction head more convenient. Attached Figure Description

[0014] Figure 1 The overall structure of this utility model is three-dimensional. Figure 1 ;

[0015] Figure 2 The overall structure of this utility model is three-dimensional. Figure 2 ;

[0016] Figure 3 For the present utility model Figure 1 A three-dimensional sectional view;

[0017] Figure 4 For the present utility model Figure 2 A front sectional view;

[0018] Figure 5 For the present utility model Figure 3 Enlarged view of the structure of part A.

[0019] In the diagram: 1. Counter; 2. Suction pipe; 3. Protective cover; 4. Disassembly and assembly mechanism; 5. Display; 6. Button; 7. Sealing ring; 8. Flip frame; 9. Extension pipe; 10. Connecting strip; 11. Internally threaded pipe; 12. Screw; 13. Rubber disc; 14. Knob; 15. Handle; 16. Hemispherical locking block; 41. Positioning post; 42. Mounting plate; 43. Connecting pin; 44. Limiting bracket; 45. Spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 A dust particle counter includes a counter 1, an exhaust pipe 2 fixedly connected to the upper middle part of the counter 1, a protective cover 3 slidably connected to the outer side of the exhaust pipe 2, a disassembly and assembly mechanism 4 provided at the upper end of the counter 1, a display 5 fixedly mounted on the upper front of the counter 1, a button 6 mounted on the lower front of the counter 1, a sealing ring 7 fixedly connected to the upper end of the counter 1, a flip frame 8 mounted on the back of the counter 1 via a damping shaft, an extension tube 9 mounted inside the flip frame 8 via a damping shaft, a connecting strip 10 fixedly connected to the bottom inner side of the extension tube 9, an internally threaded tube 11 fixedly connected inside the connecting strip 10, a screw 12 connected inside the internally threaded tube 11 via a lug, a knob 14 fixedly connected to the lower end of the screw 12, a handle 15 mounted on the lower end of the knob 14 via a bearing, and a hemispherical locking block 16 fixedly connected to the lower end of the counter 1.

[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4The sealing ring 7 is fixedly connected to the suction pipe 2 and slidably connected to the protective cover 3. The sealing ring 7 can seal the connection between the suction pipe 2 and the counter 1. The upper end of the screw 12 is fixedly connected to the rubber disc 13. The rubber disc 13 is movably connected to the inner wall of the extension pipe 9. The rubber disc 13 can increase the rotation resistance of the screw 12. The hemispherical locking block 16 is engaged with the handle 15. The handle 15 is in contact with the counter 1. The knob 14 is in contact with the extension pipe 9. The hemispherical locking block 16 can engage and limit the handle 15.

[0023] Please see Figure 1 , Figure 3 , Figure 5 The disassembly and assembly mechanism 4 includes positioning posts 41. Two positioning posts 41 are fixedly connected to the upper end of the counter 1, which are symmetrically distributed front and back. A mounting plate 42 is fixedly connected to the upper end of the counter 1. A connecting pin 43 is slidably connected inside the mounting plate 42. A limit frame 44 is fixedly connected to one end of the connecting pin 43 near the protective cover 3. A spring 45 is provided on the outside of the connecting pin 43. The positioning posts 41 can limit the protective cover 3. The positioning posts 41 are slidably connected to the protective cover 3. The limit frame 44 is slidably connected to the counter 1 and the protective cover 3. The limit frame 44 can limit the protective cover 3. One end of the spring 45 is fixedly connected to the mounting plate 42, and the other end of the spring 45 is fixedly connected to the limit frame 44. The spring 45 can automatically reset the limit frame 44 through its elastic force.

[0024] The specific implementation process of this utility model is as follows: When in use, pull the limiting frame 44. The limiting frame 44 moves the connecting pin 43 and compresses the spring 45. When the limiting frame 44 is separated from the protective cover 3, the limiting of the protective cover 3 can be released. Then the protective cover 3 is removed. After removal, the suction head is slid to the outside of the suction pipe 2. After the connection is completed, the limiting frame 44 is released and the spring 45 is reset. The spring 45 can drive the limiting frame 44 to slide to the outside of the protective cover 3 through the elastic force, so that the replacement of the protective cover 3 can be easily completed.

[0025] Then pull the handle 15. The handle 15 drives the extension tube 9 and the flipping frame 8 to flip. During the flipping process, the angle of the extension tube 9 and the flipping frame 8 can be adjusted by the damping shaft. After the angle of the extension tube 9 and the flipping frame 8 is adjusted, turn the knob 14. The knob 14 drives the screw 12 to rotate. The screw 12 drives the knob 14 to move through the threaded engagement with the internal thread tube 11. During the movement, the knob 14 can move in the direction away from the extension tube 9. When the movement distance is appropriate, the counter 1 can be lifted to the predetermined height by holding the handle 15, thereby effectively increasing the sampling height.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust particle counter, comprising a counter (1), characterized in that: A suction pipe (2) is fixedly connected to the upper middle part of the counter (1), and a protective cover (3) is slidably connected to the outside of the suction pipe (2). A disassembly and assembly mechanism (4) is provided at the upper end of the counter (1). A display (5) is fixedly installed on the upper front of the counter (1). A button (6) is installed on the lower front of the counter (1). A sealing ring (7) is fixedly connected to the upper end of the counter (1). A flipping frame (8) is installed on the back of the counter (1) through a damping shaft. An extension tube (9) is installed inside the counter (8) via a damping shaft. A connecting strip (10) is fixedly connected to the bottom of the inner side of the extension tube (9). An internal threaded tube (11) is fixedly connected inside the connecting strip (10). A screw (12) is connected inside the internal threaded tube (11) via a luwen. A knob (14) is fixedly connected to the lower end of the screw (12). A handle (15) is installed at the lower end of the knob (14) via a bearing. A hemispherical locking block (16) is fixedly connected to the lower end of the counter (1).

2. A dust particle counter according to claim 1, characterized in that: The sealing ring (7) is fixedly connected to the air extraction pipe (2), and the sealing ring (7) is slidably connected to the protective cover (3).

3. A dust particle counter according to claim 1, characterized in that: A rubber disc (13) is fixedly connected to the upper end of the screw (12), and the rubber disc (13) is movably connected to the inner wall of the extension tube (9).

4. A dust particle counter according to claim 1, characterized in that: The hemispherical locking block (16) engages with the handle (15), the handle (15) contacts the counter (1), and the knob (14) contacts the extension tube (9).

5. A dust particle counter according to claim 1, characterized in that: The disassembly and assembly mechanism (4) includes positioning columns (41). Two positioning columns (41) are fixedly connected to the upper end of the counter (1) and are symmetrically distributed in front and behind. A mounting plate (42) is fixedly connected to the upper end of the counter (1). A connecting pin (43) is slidably connected inside the mounting plate (42). A limit frame (44) is fixedly connected to one end of the connecting pin (43) near the protective cover (3). A spring (45) is provided on the outside of the connecting pin (43).

6. A dust particle counter according to claim 5, characterized in that: The positioning post (41) is slidably connected to the protective cover (3), the limiting frame (44) is slidably connected to the counter (1), and the limiting frame (44) is slidably connected to the protective cover (3).

7. A dust particle counter according to claim 5, characterized in that: One end of the spring (45) is fixedly connected to the mounting plate (42), and the other end of the spring (45) is fixedly connected to the limiting frame (44).

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