Portable dust concentration detector

Abstract

The utility model discloses a portable dust concentration detector, which relates to the technical field of dust concentration detectors and comprises a detector main body, a lifting unit is arranged on the bottom surface of the detector main body, a dustproof component is arranged on the top surface of the lifting unit, and a movable damping component is arranged on the bottom surface of the lifting unit. The dustproof assembly comprises a motor, the motor is arranged on the bottom surface of the detector main body, the output end of the motor is fixedly connected with a gear, one side of the gear is engaged with a rack, the inner side of the rack is provided with a second sliding groove, and the inner side of the second sliding groove is slidably clamped with a second limiting groove. One side of the second limiting groove is fixedly connected to one side of the dustproof assembly. Through the mutual cooperation of the motor, the gear, the rack, the sliding groove II and the limiting groove II, the detector main body can be sealed when the detector main body is not used, the influence of dust in the detector on a test result is avoided, and meanwhile, the accuracy of subsequent detection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust concentration detectors, in particular to a portable dust concentration detector. Background Art

[0002] Dust concentration detectors mainly include capacitance method, β-ray method, light scattering method, light absorption method, triboelectric method, ultrasonic method, microwave method and other online dust concentration measurement methods. The measurement principle of the capacitance method is simple, but there is not a one-to-one linear relationship between the capacitance measurement value and the concentration. The capacitance measurement value is easily affected by the phase distribution and flow pattern changes, resulting in large measurement errors; although the B-ray method is accurate, it requires sampling and comparative measurement of dust, and it is difficult to achieve online monitoring of dust concentration; the ultrasonic method and microwave method for measuring dust concentration are still in the experimental research stage, and there are few finished products on the market.

[0003] At present, publication number CN209471016U discloses a portable dust concentration detector, including: a main unit and a detection rod, the main unit and the detection rod are connected by a connecting line; the detection rod is used to collect dust-laden air, and the dust particles in the dust-laden air are irradiated by a laser light source in the detection rod to generate reflected light, and the reflected light is converted into an electrical signal after signal processing and transmitted to the circuit board mainboard in the main unit through the connecting line, and the circuit board mainboard chip processes the signal and calculates the dust concentration value through internal software.

[0004] In order to solve the detection problem, the existing technology is to separate the sampling section from the data analysis section, eliminate the vacuum pump and filter membrane, and use the light reflection method to detect the dust concentration. The measurement accuracy is high, and it can detect the dust concentration values ​​of different materials for processing. However, external dust can easily enter the instrument when not in use, which will lead to inaccurate instrument detection after it is used again. Utility Model Content

[0005] The purpose of the utility model is to provide a portable dust concentration detector to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A portable dust concentration detector comprises a detector body, wherein a lifting unit is arranged on the bottom surface of the detector body, a dustproof component is arranged on the top surface of the lifting unit, and a movable shock-absorbing component is arranged on the bottom surface of the lifting unit.

[0008] The dustproof component includes a motor, which is arranged on the bottom surface of the detector body. The output end of the motor is fixedly connected with a gear, one side of the gear is meshingly connected with a rack, the inner side of the rack is provided with a second slide groove, the inner side of the second slide groove is slidably engaged with a second limiting groove, one side of the second limiting groove is fixedly connected to one side of the dustproof component, and one end of the second slide groove is provided with a fixing unit.

[0009] A further improvement of the technical solution of the utility model is that the lifting unit includes a fixed frame, the fixed frame is arranged on the bottom surface of the detector body, an electric telescopic rod is arranged on the inner side of the fixed frame, the telescopic end of the electric telescopic rod is fixedly connected to a fixed plate, and one end of the fixed plate is rotatably connected to a guide rod.

[0010] By adopting the above technical solution, the electric telescopic rod and the fixed plate cooperate with each other, so as to provide power for the lifting and lowering of the detector body on the top surface of the top plate.

[0011] A further improvement of the technical solution of the utility model lies in that: the inner side of one end of the guide rod 1 is rotatably connected to the inner side of the fixed frame, the inner side of the guide rod 1 is rotatably connected to the guide rod 2, one end of the guide rod 2 is rotatably connected to the limiting groove 1, one end of the guide rod 2 is rotatably connected to the inner side of the fixed frame, one side of the limiting groove 1 is fixedly connected to a top plate, and a sealing groove is provided on the top surface of the top plate.

[0012] By adopting the above technical solution, through the mutual cooperation of the fixed frame, the electric telescopic rod, the fixed plate, the guide rod one, the guide rod two, the limit groove one and the top plate, the effect of detecting and adjusting the dust in the air at different heights according to the detection needs is achieved.

[0013] A further improvement of the technical solution of the utility model is that the fixing unit includes a protection groove, the protection groove is arranged at one end of the second slide groove, a sealing block is arranged on the bottom surface of the protection groove, and the inner side of the surface of the sealing block is sleeved on the inner side of the sealing groove.

[0014] By adopting the above technical solution, the sealing block and the sealing groove cooperate with each other to achieve the effect of sealing the detector body inside the protective groove, thereby preventing external gas from entering the detector body and affecting subsequent detection.

[0015] A further improvement of the technical solution of the utility model lies in that: a bidirectional threaded rod is penetrated through the inner thread of the protective groove, a movable plate is threadedly connected to the inner surface of the bidirectional threaded rod, a sliding rod is penetrated through the inner surface of the movable plate, a spring 1 is arranged on the outer surface of the sliding rod, and one end of the spring 1 is fixedly connected to an anti-slip bonding plate.

[0016] By adopting the above technical solution, the detector body is fixed by the mutual cooperation of the bidirectional threaded rod, the movable plate, the sliding rod, the spring 1 and the anti-slip bonding plate.

[0017] A further improvement of the technical solution of the utility model is that the mobile shock absorbing assembly includes a connecting plate, the connecting plate is arranged on the bottom surface of the fixed frame, the bottom surface of the connecting plate is fixedly connected to a connecting rod, the bottom surface of the connecting plate is provided with a fixing groove, a limiting groove three is provided on the inner side of the fixing groove, the inner side of the limiting groove three is slidably engaged with the inner side of the surface of the connecting rod, a spring two is fixedly connected to the inner side of the fixing groove, and one end of the spring two is fixedly connected to the bottom surface of the connecting plate.

[0018] By adopting the above technical solution, through the mutual cooperation of the connecting plate, the connecting rod, the fixing groove, the limit groove three and the spring two, the effect of damping the vibration generated during transportation is achieved, and the main body of the detector is protected at the same time.

[0019] A further improvement of the technical solution of the utility model is that a universal wheel is fixedly connected to the bottom surface of the fixing groove.

[0020] By adopting the above technical solution and setting the universal wheels, it is convenient for workers to move the device.

[0021] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0022] 1. The utility model provides a portable dust concentration detector. Through the mutual cooperation of a motor, a gear, a rack, a slide groove 2 and a limit groove 2, the main body of the detector can be sealed when not in use, thereby avoiding the influence of dust inside the instrument on the test results and improving the accuracy of subsequent detection. Through the mutual cooperation of a bidirectional threaded rod, a movable plate, a slide rod, a spring 1 and a non-slip bonding plate, the main body of the detector is fixed. Through the mutual cooperation of a fixed frame, an electric telescopic rod, a fixed plate, a guide rod 1, a guide rod 2, a limit groove 1 and a top plate, the effect of detecting and adjusting the dust in the air at different heights according to the needs of detection is achieved.

[0023] The utility model provides a portable dust concentration detector, which achieves the effect of sealing the detector body inside the protective groove through the mutual cooperation of the sealing block and the sealing groove, thereby preventing external gas from entering the detector body and affecting subsequent detection. Through the mutual cooperation of the connecting plate, the connecting rod, the fixing groove, the limiting groove three and the spring two, the effect of damping the vibration generated during transportation is achieved, and the detector body is protected at the same time. The provision of universal wheels makes it convenient for workers to move the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the utility model;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the lifting unit of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the dustproof component of the utility model;

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the fixing unit of the utility model;

[0028] Figure 5 It is a structural schematic diagram of the mobile shock absorbing assembly of the utility model.

[0029] In the figure: 1. detector body; 2. lifting unit; 21. fixed frame; 22. electric telescopic rod; 23. fixed plate; 24. guide rod 1; 25. guide rod 2; 26. limit slot 1; 27. top plate; 28. sealing slot; 3. dustproof component; 31. motor; 32. gear; 33. rack; 34. slide slot 2; 35. limit slot 2; 36. fixed unit; 361. protective slot; 362. sealing block; 363. two-way threaded rod; 364. moving plate; 365. slide rod; 366. spring 1; 367. anti-skid bonding plate; 4. mobile shock absorbing component; 41. connecting plate; 42. connecting rod; 43. fixed slot; 44. limit slot 3; 45. spring 2; 46. universal wheel. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the embodiments:

[0031] Example 1

[0032] like Figure 1 , 3As shown, the utility model provides a portable dust concentration detector, including a detector body 1, a lifting unit 2 is arranged on the bottom surface of the detector body 1, a dustproof component 3 is arranged on the top surface of the lifting unit 2, a mobile shock absorbing component 4 is arranged on the bottom surface of the lifting unit 2, and the dustproof component 3 includes a motor 31, the motor 31 is arranged on the bottom surface of the detector body 1, a gear 32 is fixedly connected to the output end of the motor 31, a rack 33 is meshedly connected to one side of the gear 32, a slide groove 34 is opened on the inner side of the rack 33, and the inner side of the slide groove 34 is slidably engaged with a limiting groove 35, and the limiting groove 35 is slidably engaged with the limiting groove 35. One side of 5 is fixedly connected to one side of the dustproof component 3, and a fixing unit 36 ​​is provided at one end of the slide groove 2 34. The motor 31 is controlled to drive the gear 32 and the rack 33 to engage with each other, thereby driving the slide groove 2 34 to slide downward on the inner side of the limit groove 2 35, and driving the fixing unit 36 ​​on the top surface to move upward, so that the detector body 1 is in contact with the external air. After use, the motor 31 is controlled to flip, and the protective groove 361 seals the detector body 1 to prevent dust in the external air from entering the detector body 1 and affecting the detected data.

[0033] like Figure 2 , 4As shown, the utility model provides a technical solution: preferably, the lifting unit 2 includes a fixed frame 21, the fixed frame 21 is arranged on the bottom surface of the detector body 1, an electric telescopic rod 22 is arranged on the inner side of the fixed frame 21, the telescopic end of the electric telescopic rod 22 is fixedly connected to a fixed plate 23, one end of the fixed plate 23 is rotatably connected to a guide rod 1 24, one end of the guide rod 1 24 is rotatably connected to the inner side of the fixed frame 21, the inner side of the guide rod 1 24 is rotatably connected to a guide rod 25, one end of the guide rod 25 is rotatably connected to a limiting groove 1 26, one end of the guide rod 25 is rotatably connected to the inner side of the fixed frame 21, a top plate 27 is fixedly connected to one side of the limiting groove 1 26, a sealing groove 28 is provided on the top surface of the top plate 27, and a mobile shock absorbing component 4 includes a connecting plate 41, the connecting plate 41 is arranged on the bottom surface of the fixed frame 21, the bottom surface of the connecting plate 41 is fixedly connected to a connecting rod 42, and a fixing groove 43 is provided on the bottom surface of the connecting plate 41. A limiting groove three 44 is provided on the inner side of the fixing groove 43, and the inner side of the limiting groove three 44 is slidably engaged with the inner side of the surface of the connecting rod 42. A spring two 45 is fixedly connected to the inner side of the fixing groove 43, and one end of the spring two 45 is fixedly connected to the bottom surface of the connecting plate 41. A universal wheel 46 is fixedly connected to the bottom surface of the fixing groove 43, and the device is moved to the working area through the universal wheel 46. At the same time, the vibration generated during the movement is damped by the mutual cooperation between the gear 32, the rack 33, the slide groove two 34 and the limiting groove two 35, so as to protect the electronic components inside the detector body 1. During the detection process, the electric telescopic rod 22 is controlled to be extended and retracted, thereby driving the guide rod one 24 at one end of the fixing plate 23 to move on the inner side of the fixing frame 21. At the same time, the guide rod one 24 and the guide rod two 25 cooperate with each other to drive the top plate 27 on the top surface of the limiting groove one 26 to rise, thereby detecting dust in the air at different heights.

[0034] like Figure 5 As shown, the utility model provides a technical solution: preferably, the inner thread of the protective groove 361 is penetrated by a two-way threaded rod 363, the inner surface of the two-way threaded rod 363 is threadedly connected to a movable plate 364, the inner surface of the movable plate 364 is penetrated by a sliding rod 365, the outer surface of the sliding rod 365 is provided with a spring 366, one end of the spring 366 is fixedly connected to an anti-skid bonding plate 367, and in the process of transporting the detector body 1, the two-way threaded rod 363 is controlled to rotate to drive the anti-skid bonding plate 367 to fit the side of the detector body 1, and the two-way threaded rod 363 is continuously rotated to drive the spring 366 on the outer side of the sliding rod 365 to be compressed, and at the same time, through the elastic action of the spring 366, it drives the anti-skid bonding plate 367 to fit more closely with the side of the detector body 1, thereby completing the fixation of the detector body 1.

[0035] The following is a detailed description of the working principle of the portable dust concentration detector.

[0036] like Figure 1-5 As shown, the device is moved to the working area by the universal wheel 46. At the same time, the vibration generated during the movement is damped by the mutual cooperation between the gear 32, the rack 33, the second slide 34 and the second limit slot 35. The motor 31 is controlled to drive the gear 32 and the rack 33 to engage with each other, thereby driving the second slide 34 to slide downward on the inner side of the second limit slot 35, and driving the fixing unit 36 ​​on the top surface to move upward, so that the detector body 1 is in contact with the external air. During the detection process, the electric telescopic rod 22 is controlled to extend and retract, thereby driving the guide rod 1 24 at one end of the fixed plate 23 to move on the inner side of the fixed frame 21, and at the same time, the guide rod 1 24 and the guide rod 2 25 are mutually engaged. They cooperate with each other to drive the top plate 27 on the top surface of the limit groove 26 to rise, and then detect the dust in the air at different heights. After use, the control motor 31 is turned over, and then the protective groove 361 seals the detector body 1. In the process of transporting the detector body 1, the two-way threaded rod 363 is controlled to rotate, driving the anti-skid bonding plate 367 to fit the side of the detector body 1, and continuously rotating the two-way threaded rod 363 drives the spring 366 on the outside of the sliding rod 365 to be compressed. At the same time, through the elastic action of the spring 366, it drives the anti-skid bonding plate 367 to fit more closely with the side of the detector body 1, thereby completing the fixation of the detector body 1.

[0037] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A portable dust concentration detector, comprising a detector body (1), characterized in that: The bottom surface of the detector body (1) is provided with a lifting unit (2), the top surface of the lifting unit (2) is provided with a dustproof component (3), and the bottom surface of the lifting unit (2) is provided with a movable shock absorbing component (4); The dustproof component (3) comprises a motor (31), the motor (31) being arranged on the bottom surface of the detector body (1), the output end of the motor (31) being fixedly connected with a gear (32), one side of the gear (32) being meshingly connected with a rack (33), the inner side of the rack (33) being provided with a second slide groove (34), the inner side of the second slide groove (34) being slidably engaged with a second limit groove (35), one side of the second limit groove (35) being fixedly connected with one side of the dustproof component (3), and one end of the second slide groove (34) being provided with a fixing unit (36).

2. A portable dust concentration detector according to claim 1, characterized in that: The lifting unit (2) comprises a fixed frame (21), the fixed frame (21) being arranged on the bottom surface of the detector body (1), an electric telescopic rod (22) being arranged inside the fixed frame (21), the telescopic end of the electric telescopic rod (22) being fixedly connected to a fixed plate (23), and one end of the fixed plate (23) being rotatably connected to a guide rod (24).

3. A portable dust concentration detector according to claim 2, characterized in that: One end of the guide rod 1 (24) is rotatably connected to the inner side of the fixed frame (21); the inner side of the guide rod 1 (24) is rotatably connected to the guide rod 2 (25); one end of the guide rod 2 (25) is rotatably connected to the limiting groove 1 (26); one end of the guide rod 2 (25) is rotatably connected to the inner side of the fixed frame (21); one side of the limiting groove 1 (26) is fixedly connected to a top plate (27); a sealing groove (28) is provided on the top surface of the top plate (27).

4. A portable dust concentration detector according to claim 1, characterized in that: The fixing unit (36) comprises a protection groove (361), the protection groove (361) being arranged at one end of the second slide groove (34), a sealing block (362) being arranged on the bottom surface of the protection groove (361), and the inner side of the surface of the sealing block (362) being sleeved on the inner side of the sealing groove (28).

5. A portable dust concentration detector according to claim 4, characterized in that: A bidirectional threaded rod (363) is passed through the inner thread of the protective groove (361); a movable plate (364) is threadedly connected to the inner surface of the bidirectional threaded rod (363); a sliding rod (365) is passed through the inner surface of the movable plate (364); a spring (366) is provided on the outer surface of the sliding rod (365); one end of the spring (366) is fixedly connected to an anti-slip bonding plate (367).

6. A portable dust concentration detector according to claim 1, characterized in that: The mobile shock absorbing assembly (4) comprises a connecting plate (41), the connecting plate (41) being arranged on the bottom surface of the fixed frame (21), the bottom surface of the connecting plate (41) being fixedly connected to a connecting rod (42), the bottom surface of the connecting plate (41) being provided with a fixing groove (43), the inner side of the fixing groove (43) being provided with a limiting groove three (44), the inner side of the limiting groove three (44) being slidably engaged with the inner side of the surface of the connecting rod (42), the inner side of the fixing groove (43) being fixedly connected to a spring two (45), one end of the spring two (45) being fixedly connected to the bottom surface of the connecting plate (41).

7. A portable dust concentration detector according to claim 6, characterized in that: A universal wheel (46) is fixedly connected to the bottom surface of the fixing groove (43).

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