Dust particle counter

Abstract

The invention provides a dust particle counter. Relates to the technical field of environment detection, in particular to a dust particle counter which comprises two connecting plates and two fixed protection plates which are detachably mounted at the top of a box body, the two connecting plates are both located between the two fixed protection plates, and a dust particle counter body is fixedly mounted at the tops of the two connecting plates; the device comprises a box body, two rotating rods are rotationally installed in the box body, the two ends of each rotating rod extend out of the box body, protective U-shaped plates are fixedly installed on the two rotating rods respectively, a double-shaft motor is fixedly installed in the box body, and worms are fixedly installed on two output shafts of the double-shaft motor respectively. The dust particle counter has the advantages of being convenient to use, easy to operate and capable of preventing damage caused by collision of external objects.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental detection, and in particular to a dust particle counter. Background Art

[0002] The dust particle counter is an instrument used to measure the number and size distribution of dust particles per unit volume in the environment. Its working principle is: the light from the light source is focused into the measuring cavity by the lens group, and the dust particle collection tube quickly sucks the air from the external environment into the measuring cavity. When the dust particles in the air pass through the measuring cavity quickly, they scatter the incident light once, forming a light pulse signal. This light signal is sent to the photodetector after passing through the lens group, and is proportionally converted into an electrical pulse signal. After amplification and screening by the electronic circuit of the instrument, the required signal is picked out and displayed through the counting system to obtain the number of dust particles in the air.

[0003] After searching, the patent document with the authorization publication number CN214539155U3D proposes a dust particle counter, which includes a counter body and a dust particle collection tube connected to the counter body. A support frame is arranged under the counter body, and the support frame includes a center rod, a support rod connected to the outer wall of the center rod in a circular shape, and a universal wheel arranged at the bottom of the support rod; however, the existing dust particle counter is directly exposed to the external environment and lacks protective devices, resulting in foreign objects often colliding with the dust particle counter when people carry it, causing damage to the dust particle counter and affecting its service life.

[0004] Therefore, it is necessary to provide a dust particle counter to solve the above technical problems.

[0005] Practical Invention Content The technical problem solved by the invention is to provide a dust particle counter which is easy to use, simple to operate and can prevent collision and damage caused by external objects.

[0006] In order to solve the above technical problems, the dust particle counter provided by the present invention includes: two connecting plates and two fixed protective plates detachably installed on the top of the box body, and the two connecting plates are located between the two fixed protective plates, and the dust particle counter body is fixedly installed on the top of the two connecting plates, two rotating rods are rotatably installed in the box body, and both ends of the two rotating rods extend outside the box body, and protective U-shaped plates are respectively fixedly installed on the two rotating rods, and a dual-axis motor is fixedly installed in the box body, and worms are respectively fixedly installed on the two output shafts of the dual-axis motor, and the two worms are rotatably connected to the inner walls on both sides of the box body, and worm wheels are respectively fixedly sleeved on the two rotating rods, and the two worm wheels are respectively meshed with the two worms.

[0007] Preferably, a fixed baffle is fixedly installed on the top of the dust particle counter body.

[0008] Preferably, a level is fixedly mounted on an outer wall of one side of the fixed baffle.

[0009] Preferably, two threaded rods are respectively threadedly installed on the two protective U-shaped plates, and rotating handles are respectively fixedly installed on the top ends of the four threaded rods, and pads are respectively fixedly installed on the bottom ends of the four threaded rods.

[0010] Preferably, two lubricating oil tanks are fixedly mounted on the inner wall of the bottom of the box body, and sponge smear rollers are rotatably mounted in the two lubricating oil tanks, and the two sponge smear rollers are in contact with the two worm gears respectively.

[0011] Preferably, two refueling pipes are fixedly mounted on the box body, and the two refueling pipes are respectively located directly above the two worm gears, rubber pistons are respectively slidably sealed in the two refueling pipes, and pick-up handles are respectively fixedly mounted on the two rubber pistons.

[0012] Preferably, four universal wheels are fixedly mounted on the bottom of the box, and the four universal wheels are distributed in a rectangular array.

[0013] Preferably, rotation grooves are respectively opened on the inner walls on both sides of the box body, the two worms extend into the two rotation grooves respectively and are respectively fixedly sleeved with bearings, and the outer rings of the two bearings are respectively fixedly connected to the inner walls of the rotation grooves.

[0014] Preferably, a carrying handle is fixedly mounted on the top of the fixed baffle.

[0015] Compared with the related art, the dust particle counter provided by the present invention has the following beneficial effects: The present invention provides a dust particle counter. A protective device is formed by two protective U-shaped plates, a fixed protective plate and a fixed baffle to protect the dust particle counter body, so as to prevent external objects from colliding with the dust particle counter body when people carry the device, thereby causing damage to the dust particle counter body and affecting the service life. The protective U-shaped plate is rotated by a double-axis motor to rotate from a vertical upward state to a vertical downward state to support the dust particle counter body, so that the dust particle counter body is exposed, and the staff can use the dust particle counter body to detect dust. At the same time, the worm rotates to rotate the sponge smear roller to lubricate the lubricant in the lubricating oil tank. The oil is continuously applied to the worm and the worm wheel, and the wear between the worm and the worm wheel is reduced by the lubricating oil, thereby increasing the service life of the worm and the worm wheel. By turning the rotating handle located at a low position, the pad is driven to move downward to raise the device located at a low position, so that the device can maintain a horizontal state during operation, so that the air path system inside the dust particle counter body can run more smoothly, and the sampling airflow is made more uniform and stable. Therefore, when sampling dust particles in the environment, particles in all directions and positions can be captured more accurately, avoiding excessive or insufficient particle sampling in certain areas due to uneven airflow, thereby improving the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the main structure of the dust particle counter provided by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of section A is shown; Figure 3 A working state diagram of the dust particle counter provided by the present invention; Figure 4 for Figure 1 An enlarged schematic diagram of portion B is shown; Figure 5 for Figure 1 A three-dimensional diagram of the protective U-shaped plate shown; Figure 6 This is a front view of the dust particle counter provided by the present invention.

[0017] Numbers in the figure: 1. Dust particle counter body; 2. Box body; 3. Connecting plate; 4. Dual-axis motor; 5. Worm; 6. Rotating rod; 7. Protective U-shaped plate; 8. Worm gear; 9. Lubricating oil tank; 10. Sponge applicator roller; 11. Filling pipe; 12. Rubber piston; 13. Pick-up handle; 14. Fixed baffle; 15. Level; 16. Carrying handle; 17. Pad; 18. Threaded rod; 19. Rotating handle; 20. Fixed protective plate. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0019] Please refer to Figure 1-Figure 6 In the present invention, the dust particle counter includes: two connecting plates 3 and two fixed protective plates 20 detachably mounted on the top of the box body 2. In order to make people more labor-saving and convenient when carrying the device, four universal wheels are fixedly mounted on the bottom of the box body 2, and the four universal wheels are distributed in a rectangular array. A fixed baffle 14 is fixedly mounted on the top of the dust particle counter body 1. In order to make it convenient for people to carry the device, a carrying handle 16 is fixedly mounted on the top of the fixed baffle 14, and the two connecting plates 3 are both located between the two fixed protective plates 20. The dust particle counter body 1 is fixedly mounted on the top of the two connecting plates 3. Two rotating rods 6 are rotatably mounted in the box body 2, and both ends of the two rotating rods 6 extend outside the box body 2. Protective U-shaped plates 7 are fixedly mounted on the two rotating rods 6, respectively. Through the two protective U-shaped plates 7, the fixed protective plates 20 and The fixed baffle 14 forms a protective device to protect the dust particle counter body 1 to prevent foreign objects from colliding with the dust particle counter body 1 when people are carrying the device, causing damage to the dust particle counter body 1 and affecting its service life. A dual-axis motor 4 is fixedly installed in the box body 2, and worms 5 are fixedly installed on the two output shafts of the dual-axis motor 4, and the two worms 5 are rotatably connected to the inner walls of the two sides of the box body 2. In order to rotatably install the worm 5 on the box body 2, rotation grooves are respectively opened on the inner walls of the two sides of the box body 2. The two worms 5 extend into the two rotation grooves and are respectively fixedly sleeved with bearings, and the outer rings of the two bearings are respectively fixedly connected to the inner walls of the rotation grooves. The bearings make the worm 5 rotate more stably in the box body 2, and worm wheels 8 are respectively fixedly sleeved on the two rotating rods 6, and the two worm wheels 8 are respectively meshed with the two worms 5.

[0020] In order to allow people to quickly know whether the dust particle counter body 1 is in a horizontal state and then adjust the position of the dust particle counter body 1 , a level meter 15 is fixedly installed on the outer wall of one side of the fixed baffle 14 .

[0021] In order to keep the dust particle counter body 1 in a horizontal state during operation and make the sampling airflow more uniform and stable, so as to more accurately capture particles in various directions and positions when sampling dust particles in the environment, avoid excessive or insufficient sampling of particles in certain areas due to uneven airflow, and improve the accuracy of the detection results, two threaded rods 18 are respectively threadedly installed on the two protective U-shaped plates 7, and rotating handles 19 are respectively fixedly installed on the top ends of the four threaded rods 18, and pads 17 are respectively fixedly installed on the bottom ends of the four threaded rods 18.

[0022] In order to reduce the wear between the worm wheel 8 and the worm 5 and to increase the service life of the worm wheel 8 and the worm 5, two lubricating oil tanks 9 are fixedly installed on the inner wall of the bottom of the housing 2, and sponge smear rollers 10 are rotatably installed in the two lubricating oil tanks 9 respectively, and the two sponge smear rollers 10 are in contact with the two worms 5 respectively. The rotation of the worm 5 drives the sponge smear rollers 10 to rotate through friction, so that the lubricating oil in the lubricating oil tank 9 is continuously applied to the worm 5, and then the lubricating oil is also applied to the worm wheel 8 through the worm 5.

[0023] In order to make it convenient for people to add lubricating oil into the lubricating oil tank 9, two filling pipes 11 are fixedly installed on the box body 2, and the two filling pipes 11 are respectively located directly above the two worm gears 8. Rubber pistons 12 are respectively installed in the two filling pipes 11 in a sliding seal, and handles 13 are respectively fixedly installed on the two rubber pistons 12.

[0024] The working principle of the dust particle counter provided by the present invention is as follows; in the initial state, the lubricating oil tank 9 is filled with lubricating oil, the sponge smear roller 10 is in close contact with the worm 5, and a protective device is formed by two protective U-shaped plates 7, a fixed protective plate 20 and a fixed baffle 14 to protect the dust particle counter body 1 to prevent external objects from colliding with the dust particle counter body 1 when people carry the device, causing damage to the dust particle counter body 1 and affecting its service life. When the device needs to be used for dust detection, the dual-axis motor 4 is started, and the dual-axis motor 4 rotates to drive the two worms 5 to rotate, and the two worms 5 rotate to drive the worm gear 8 to rotate, and the worm gear 8 rotates to drive the rotating rod 6 to rotate, and the rotating rod 6 rotates to drive the protective U-shaped plate 7 to rotate 180° from a vertical upward state to a vertical downward state to support the dust particle counter, so that the dust particle counter body 1 appears, and the staff can use the dust particle counter body 1 to detect dust, and at the same time, the worm 5 rotates through The friction force drives the sponge smearing roller 10 to rotate, and the lubricating oil in the lubricating oil tank 9 is continuously applied to the worm 5, and then the lubricating oil is also applied to the worm wheel 8 through the worm 5, so that the worm wheel 8 and the worm 5 are coated with lubricating oil, and the wear between the worm wheel 8 and the worm 5 is reduced by the lubricating oil, and the service life of the worm wheel 8 and the worm 5 is increased. When the ground is uneven, the rotating handle 19 located in a low position is turned, and the rotating handle 19 is turned to drive the threaded rod 18 to rotate and move downward. The threaded rod 18 moves downward and drives the pad 17 to move downward to tiptoe the device located in a low position, so that the device is kept in a horizontal state during operation, so that the air path system inside the dust particle counter body 1 can run more smoothly, and the sampling airflow is more uniform and stable. When sampling dust particles in the environment, particles in all directions and positions can be captured more accurately, avoiding excessive or insufficient particle sampling in certain areas due to uneven airflow, thereby improving the accuracy of the detection results.

[0025] Compared with the related art, the dust particle counter provided by the present invention has the following beneficial effects: The present invention provides a dust particle counter, which is composed of two protective U-shaped plates 7, a fixed protective plate 20 and a fixed baffle 14 to form a protective device to protect the dust particle counter body 1, so as to prevent people from colliding with the dust particle counter body 1 with external objects when carrying the device, thereby causing damage to the dust particle counter body 1 and affecting the service life. The protective U-shaped plate 7 is rotated 180 degrees by a dual-axis motor 4 from a vertically upward state to a vertically downward state to support the dust particle counter, so that the dust particle counter body 1 is visible, and the staff can use the dust particle counter body 1 to detect dust, and at the same time, the worm 5 rotates to rotate the sponge smear roller 10 to rotate the lubricating oil tank The lubricating oil in 9 is continuously applied to the worm 5 and the worm wheel 8, and the wear between the worm wheel 8 and the worm 5 is reduced by the lubricating oil, thereby increasing the service life of the worm wheel 8 and the worm 5. By turning the rotating handle 19 located at a low position, the pad 17 is driven to move downward to raise the device located at a low position, so that the device can remain in a horizontal state during operation, so that the air path system inside the dust particle counter body 1 can run more smoothly, and the sampling airflow can be more uniform and stable. Therefore, when sampling dust particles in the environment, particles in all directions and positions can be captured more accurately, avoiding excessive or insufficient particle sampling in certain areas due to uneven airflow, thereby improving the accuracy of the detection results.

[0026] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A dust particle counter, comprising two connecting plates and two fixed protective plates detachably mounted on the top of a box, wherein the two connecting plates are located between the two fixed protective plates, characterized in that: A dust particle counter body is fixedly installed on the top of the two connecting plates, two rotating rods are rotatably installed in the box body, and both ends of the two rotating rods extend outside the box body, and protective U-shaped plates are fixedly installed on the two rotating rods, and a double-axis motor is fixedly installed in the box body, and worms are fixedly installed on the two output shafts of the double-axis motor, and the two worms are rotatably connected to the inner walls on both sides of the box body, and worm wheels are fixedly mounted on the two rotating rods, and the two worm wheels are respectively meshed with the two worms.

2. The dust particle counter according to claim 1, characterized in that: A fixed baffle is fixedly installed on the top of the dust particle counter body.

3. The dust particle counter according to claim 2, characterized in that: A level is fixedly mounted on an outer wall of one side of the fixed baffle.

4. The dust particle counter according to claim 3, characterized in that: Two threaded rods are respectively threadedly installed on the two protective U-shaped plates, and rotating handles are respectively fixedly installed on the top ends of the four threaded rods, and pads are respectively fixedly installed on the bottom ends of the four threaded rods.

5. The dust particle counter according to claim 4, characterized in that: Two lubricating oil tanks are fixedly mounted on the inner wall of the bottom of the box body, and sponge smearing rollers are rotatably mounted in the two lubricating oil tanks respectively, and the two sponge smearing rollers are in contact with the two worm gears respectively.

6. The dust particle counter according to claim 5, characterized in that: Two refueling pipes are fixedly installed on the box body, and the two refueling pipes are respectively located directly above the two worm gears. Rubber pistons are respectively installed in the two refueling pipes in a sliding and sealing manner, and pick-up handles are respectively fixedly installed on the two rubber pistons.

7. The dust particle counter according to claim 6, characterized in that: Four universal wheels are fixedly installed on the bottom of the box, and the four universal wheels are distributed in a rectangular array.

8. The dust particle counter according to claim 7, characterized in that: Rotation grooves are respectively opened on the inner walls of both sides of the box body, the two worms extend into the two rotation grooves respectively and are respectively fixedly sleeved with bearings, and the outer rings of the two bearings are respectively fixedly connected to the inner walls of the rotation grooves.

9. The dust particle counter according to claim 8, characterized in that: A carrying handle is fixedly mounted on the top of the fixed baffle.

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