Multifunctional portable air quality detector

Abstract

A multifunctional portable air quality detector relates to the technical field of air detection equipment, and is characterized in that a push mechanism pushes a pressing plate to move, the pressing plate pushes a supporting rod to move towards a probe cavity, after the supporting rod enters the probe cavity, a brush on the supporting rod can scrape a detection probe in the probe cavity, and meanwhile, a cleaning pinching handle is pressed to clean the detection probe in the probe cavity. The cleaning pinching handle drives the rack to move, the rack pushes the gear ring to rotate, the gear ring moves to drive the collecting pipe to rotate in one direction through the one-way ratchet wheel, the collecting pipe drives the supporting rod and the brush to integrally move around the axis of the collecting pipe, the brush moves in the probe cavity to scrape the detection probe, and dust on the probe is cleaned. The detector does not need to be disassembled in the cleaning process, and operation is easy.

Description

Technical Field

[0001] The invention relates to the technical field of air detection equipment, and in particular to a multifunctional portable air quality detector. Background Art

[0002] Air quality detector is an instrument for detecting the concentration of air pollutants. It uses the built-in detection probe in the instrument to detect the concentration of specified pollutants in the air. When the detector is in use, dust in the air will inevitably enter the detection cavity of the detector. The dust accumulates on the detection probe in the detection cavity, which will affect the sensitivity of the detection probe and thus cause measurement errors. The existing air quality detector is not convenient for cleaning the dust on the detection probe in the detection cavity. During the cleaning process, the detector needs to be disassembled, which is troublesome. Summary of the invention

[0003] The present invention aims to overcome the problem that the existing air quality detector is inconvenient to clean the dust on the detection probe in the detection cavity, and aims to provide a multifunctional portable air quality detector.

[0004] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions: A multifunctional portable air quality detector, comprising an outer shell, a pushing mechanism, a probe cavity, and a cleaning handle; The probe cavity is a pipe pile structure, with a probe installation section with a thinner inner diameter in the middle and connecting sections with a thicker inner diameter at both ends; The outer shell is provided with a collection port at the top, a collection tube is rotatably installed in the collection port, the pushing mechanism is installed inside the outer shell, a pressing plate is rotatably installed on the moving part of the pushing mechanism, and support guide grooves are arranged in a matrix at equal angles on the outer ring side of the collection tube, a support rod is slidably installed in the support guide groove, the upper end of the support rod is fixed on the pressure plate, a brush is installed on the support rod, and when the pushing mechanism pushes the pressure plate to move downward, the support rod connected to the pressure plate can push the brush into the probe installation section of the probe cavity; The cleaning handle is hingedly mounted on the outer shell, one end of the cleaning handle away from the hinge point is connected with a rack, a one-way ratchet is mounted on the collection tube, an outer fixed ring of the one-way ratchet has a toothed ring, and the rack is meshed with the toothed ring.

[0005] Furthermore, the pushing mechanism includes a supporting sleeve, a guide sleeve, a pressure sleeve, a cooperative sleeve, and a pressure spring. The guide sleeve is fixedly mounted on the supporting sleeve. The guide sleeve is provided with pushing guide grooves in an equiangular matrix. The pressure sleeve is slidably mounted on the pushing guide groove. The cooperative sleeve is provided with an external convex rod, which can be inserted into the pushing guide groove. A limiting ring is fixed on the collection tube, the cooperative sleeve is located on the upper part of the limiting ring, and the pressure spring is located between the limiting ring and the cooperative sleeve.

[0006] Furthermore, an adjusting slide is provided on the outer shell, a sliding switch is provided in the adjusting slide, a lever is fixed on the sliding switch, and the lever is connected to the top pressure sleeve.

[0007] Furthermore, a first sawtooth is provided at the lower end of the guide sleeve, one side of the first sawtooth is a vertical surface set along the axis of the guide sleeve, and the other side is an inclined surface, there is a complete first sawtooth between two adjacent pushing guide grooves, and one side of the pushing guide groove coincides with the vertical surface of the first sawtooth at its end, and a second sawtooth is provided at the lower end of the top pressure sleeve, and both sides of the second sawtooth are guide inclined surfaces, one side of the guide inclined surface is parallel to the inclined surface of the first sawtooth, and the side guide inclined surface intersects with the section through the axis of the guide sleeve where the end point of the first sawtooth is located, and the upper end of the outer protruding rod is provided with a beveled surface parallel to the inclined surface on the first sawtooth, and the upper end of the outer protruding rod can contact the first sawtooth and the second sawtooth.

[0008] Furthermore, the pressure plate is located between the top pressure spring and the cooperative sleeve, and a support bearing is arranged between the pressure plate and the cooperative sleeve.

[0009] Furthermore, the support sleeve, the top pressure sleeve and the cooperative sleeve are all coaxial with the collection pipe, and the annular sleeve is installed on the collection pipe.

[0010] Furthermore, a fan is installed at the bottom of the outer shell, an air duct is provided on the upper part of the fan, the lower end of the probe cavity is inserted into the air duct, a connecting ring is provided on the upper end of the air duct, a first rubber ring is installed at the lower end of the probe cavity, and a first shock-absorbing spring is provided between the connecting ring and the first rubber ring.

[0011] Furthermore, a second rubber ring is provided at the lower end of the collection tube, the second rubber ring is located inside the upper connecting section of the probe cavity, and the support rod passes through the second rubber ring and is connected to a pressure ring pad.

[0012] Furthermore, a second shock-absorbing spring is installed between the second rubber ring and the upper end of the probe cavity.

[0013] Furthermore, a support arc plate is installed on the outer ring of the probe installation section of the probe cavity, and a damping rod is connected between the support arc plate and the outer shell.

[0014] The beneficial effects of the present invention are: The pressing plate is pushed to move by the pushing mechanism, and the pressing plate pushes the support rod to move into the probe cavity. After the support rod enters the probe cavity, the brush on it can scrape the detection probe in the probe cavity. At the same time, by pressing the cleaning handle, the cleaning handle drives the rack to move, and the rack drives the gear ring to rotate. The gear ring moves through the one-way ratchet to drive the collection tube to rotate in one direction. The collection tube drives the support rod and the brush as a whole to move around the axis of the collection tube. The brush is used to move in the probe cavity to scrape the detection probe to clean the dust on the probe. During the cleaning process, there is no need to disassemble the detector, and the operation is simple. After cleaning, the brush can be retracted and will not stay in the probe wall, reducing the impact of the brush on the detection probe when the detector is in use; The first shock absorbing spring, the second shock absorbing spring, the first rubber ring, the second rubber ring, the top pressure spring and the support rod form support for the probe cavity. When the outer shell is impacted along the axis of the probe cavity, the impact force can be buffered to a certain extent, thereby reducing the vibration of the probe cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the installation of the probe cavity of the present invention; Figure 3 It is a schematic diagram of rack installation of the present invention; Figure 4 It is a schematic diagram of the structure of the push mechanism of the present invention; Figure 5 It is a structural diagram of the guide sleeve, top pressure sleeve and cooperative sleeve of the present invention.

[0016] In the figure: 1, outer shell; 2, push mechanism; 3, probe cavity; 4, cleaning handle; 12, collection port; 13, collection tube; 14, pressure plate; 15, support guide groove; 16, support rod; 17, brush; 18, rack; 19, one-way ratchet; 20, gear ring; 31, support sleeve; 32, guide sleeve; 33, top pressure sleeve; 34, cooperative sleeve; 35, top pressure spring; 36, sliding switch; 37, push guide groove; 38, connecting protrusion; 39, first sawtooth ; 40. second serration; 101. vertical surface; 102. inclined surface; 103. guiding inclined surface; 41. outer protruding rod; 104. chamfered surface; 42. limiting ring; 43. adjusting slide; 44. lever; 51. supporting bearing; 52. fan; 53. air duct; 54. connecting ring; 55. first rubber ring; 56. first shock absorbing spring; 57. second rubber ring; 58. pressure ring pad; 59. second shock absorbing spring; 60. supporting arc plate; 61. damping rod. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams. Example 1

[0018] like Figure 1-Figure 3 As shown, a multifunctional portable air quality detector comprises an outer shell 1, a pushing mechanism 2, a probe cavity 3, and a cleaning handle 4; The probe cavity 3 is a pipe pile structure, with a probe installation section with a thinner inner diameter in the middle and connecting sections with a thicker inner diameter at both ends; A collection port 12 is provided at the upper part of the outer shell 1, a collection tube 13 is rotatably installed in the collection port 12, a pushing mechanism 2 is installed inside the outer shell 1, a pressing plate 14 is rotatably installed on the moving part of the pushing mechanism 2, and a support guide groove 15 is provided in a matrix at equal angles on the outer ring side of the collection tube 13, a support rod 16 is slidably installed in the support guide groove 15, the upper end of the support rod 16 is fixed on the pressing plate 14, and a brush 17 is installed on the support rod 16. When the pushing mechanism 2 pushes the pressing plate 14 to move downward, the support rod 16 connected to the pressing plate 14 can push the brush 17 into the probe installation section of the probe cavity 3; The cleaning handle 4 is hingedly mounted on the outer shell 1, and one end of the cleaning handle 4 away from the hinge point is connected to a rack 18. A torsion spring is installed at the hinge point between the cleaning handle 4 and the outer shell 1, and the torsion spring applies a torsion force to deflect the cleaning handle 4 away from the outer shell. A limiting groove is provided on the cleaning handle 4, and one end of the rack 18 is located in the limiting groove. A limiting block is provided on the rack 18, and the limiting block is located inside the outer shell 1 to prevent the rack 18 from being separated from the outer shell 1. A one-way ratchet 19 is installed on the collection tube 13, and a toothed ring 20 is provided on the outer ring fixing ring of the one-way ratchet 19, and the rack 18 is meshed with the toothed ring 20; The detection probe is installed at the probe installation section position in the probe cavity 3. When the detection probe needs to be cleaned, the pushing mechanism 2 pushes the pressure plate 14 to move, and the pressure plate 14 pushes the support rod 16 to move into the probe cavity 3. After the support rod 16 enters the probe cavity 3, the brush 17 thereon can scrape the detection probe in the probe cavity 3. At the same time, by pressing the cleaning handle 4, the cleaning handle 4 drives the rack 18 to move, and the rack 18 drives the gear ring 20 to rotate. The gear ring 20 moves through the one-way ratchet 19 to drive the collection tube 13 to rotate unidirectionally. The collection tube 13 drives the support rod 16 and the brush 17 to move as a whole around the axis of the collection tube 13. The brush 17 is used to move in the probe cavity 3 to scrape the detection probe to clean the dust on the probe. There is no need to disassemble the detector during the cleaning process, and the operation is simple. Example 2

[0019] On the basis of Example 1, Figure 1-Figure 5As shown, the pushing mechanism 2 includes a supporting sleeve 31, a guiding sleeve 32, a pressing sleeve 33, a coordinating sleeve 34, a pressing spring 35, and a sliding switch 36. The supporting sleeve 31 is fixed on the outer shell 1, the guiding sleeve 32 is fixedly mounted on the supporting sleeve 31, the pressing sleeve 33 is located inside the guiding sleeve 32, and a pushing guide groove 37 is arranged in a matrix at equal angles on the guiding sleeve 32. The pushing guide groove 37 is arranged along the axis of the guiding sleeve 32, and the lower end of the pushing guide groove 37 is open. A connecting protrusion 38 is arranged on the outer ring side of the pressing sleeve 33, and the connecting protrusion 38 is located in the pushing guide groove 37. A first sawtooth 39 is arranged in a matrix at equal angles on the lower end of the guiding sleeve 32, and one side of the first sawtooth 39 is a vertical surface 101 arranged along the axis of the guiding sleeve 32, and the other side is an inclined surface 102. There is a complete first sawtooth 39 between two adjacent pushing guide grooves 37, and there is a first sawtooth 39 and an end of the pushing guide groove 37. When overlapped, the vertical side of the first sawtooth 39 overlaps with the side wall of the push guide groove 37, and the second sawtooth 40 is arranged in a matrix at an equal angle at the lower end of the top pressure sleeve 33. The two sides of the second sawtooth 40 are guide slopes 103 respectively, wherein the guide slope 103 on one side is parallel to the inclined surface 102 of the first sawtooth 39, and the side guide slope 103 intersects with the section through the axis of the guide sleeve 32 where the end point of the first sawtooth 39 is located, and the outer ring of the cooperative sleeve 34 is provided with an outer convex rod 41 corresponding to the push guide groove 37, and the upper end of the outer convex rod 41 is provided with a beveled surface 104 parallel to the upper inclined surface 102 of the first sawtooth 39, and the outer convex rod 41 can be inserted into the push guide groove 37 by moving upward, and the upper end of the outer convex rod 41 can contact the first sawtooth 39 and the second sawtooth 40, and a limiting ring 42 is fixed on the collection tube 13, and the cooperative sleeve 34 is located at the upper part of the limiting ring 42, and the top pressure spring 35 is located between the limiting ring 42 and the cooperative sleeve 34; An adjusting slide 43 is provided on the outer shell 1, and the adjusting slide 43 is parallel to the axis of the top pressing sleeve 33. The sliding switch 36 is installed in the adjusting slide 43. A lever 44 is fixed on the sliding switch 36, and the lever 44 is connected to the top pressing sleeve 33. The support sleeve 31, the top pressure sleeve 33, and the cooperative sleeve 34 are all coaxial with the collection pipe 13, and the ring sleeve is installed on the collection pipe 13; The pressure plate 14 is located between the top pressure spring 35 and the cooperative sleeve 34. A support bearing 51 is arranged between the pressure plate 14 and the cooperative sleeve 34. The support bearing 51 is used to reduce the friction between the pressure plate 14 and the cooperative sleeve 34. The pressing spring 35 applies an upward thrust to the cooperative sleeve 34, so that the outer protruding rod 41 on the cooperative sleeve 34 presses the first sawtooth 39 or the second sawtooth 40 upward. By pushing the sliding switch 36 downward in the adjusting slide 43, the sliding switch 36 drives the lever 44 to move downward along the axis direction of the pressing sleeve 33, thereby driving the pressing sleeve 33 to move downward. The pressing sleeve 33 moves downward, and the second sawtooth 40 at the lower end thereof contacts the outer protruding rod 41 on the cooperative sleeve 34. The pressing sleeve 33 is restricted by the vertical surface 101 of the first sawtooth 39 and the guiding inclined surface 103 of the second sawtooth 40, and the pressing sleeve 33 is pushed downward. The movable cooperative sleeve 34 moves along the axis. When the end of the outer convex rod 41 moves to the end of the first saw tooth 39, the outer convex rod 41 is no longer restricted by the vertical surface 101 of the first saw tooth 39. As the second saw tooth 40 continues to move downward, the outer convex rod 41 is completely separated from the first saw tooth 39. At the same time, under the pressure of the top pressure spring 35 and the guide inclined surface 103 on the second saw tooth 40, the outer convex rod 41 moves along the guide inclined surface 103 of the second saw tooth 40, thereby making the outer convex rod 41 enter the adjacent first saw tooth 39. When the outer protruding rod 41 moves to the first serration 39 between two adjacent pushing guide grooves 37, it is supported by the first serration 39. At this time, the cooperative sleeve 34 is located at the lowermost end of the guide sleeve 32, and the cooperative sleeve 34 presses the pressure plate 14 downward to push the brush 17 on the support rod 16 into the probe cavity 3. When the outer protruding rod 41 moves to the first serration 39 that coincides with the pushing guide groove 37, the outer protruding rod 41 on the cooperative sleeve 34 is completely inserted into the pushing guide groove 37. At this time, the cooperative sleeve 34 and the pressure plate 14 move upward together under the action of the pressing spring 35, thereby driving the support rod 16 and the brush 17 to move upward, thereby completing the retraction of the brush 17 to avoid the brush 17 contacting the detection probe and affecting the accuracy when the detector is in use. Example 3

[0020] On the basis of Example 1, Figure 1-Figure 5 As shown, a fan 52 is installed at the bottom of the outer shell 1, an air duct 53 is provided on the upper part of the fan 52, the lower end of the probe cavity 3 is inserted into the interior of the air duct 53, a connecting ring 54 is provided on the upper end of the air duct 53, a first rubber ring 55 is installed at the lower end of the probe cavity 3, and a first shock-absorbing spring 56 is provided between the connecting ring 54 and the first rubber ring 55; A second rubber ring 57 is provided at the lower end of the collection tube 13. The second rubber ring 57 is located inside the upper connecting section of the probe cavity 3. The support rod 16 passes through the second rubber ring 57 and is connected to a pressure ring pad 58. When the support rod 16 is completely retracted into the support guide groove 15, the top pressure spring 35 acts on the pressure plate 14 to pull the support rod 16, so that the support rod 16 pulls the pressure ring pad 58 to always maintain an upward pulling force on the second rubber ring 57, so that the second rubber ring 57 is close to the notch of the support guide groove 15, thereby closing the notch of the support guide groove 15 and reducing the influence of the brush 17 on the probe in the probe cavity 3 during the detection process; A second damping spring 59 is installed between the second rubber ring 57 and the upper end of the probe cavity 3; The first damping spring 56, the second damping spring 59, the first rubber ring 55, the second rubber ring 57, the top pressure spring 35, and the support rod 16 form a support for the probe cavity 3. When the outer shell 1 is hit along the axis of the probe cavity 3, the impact force can be buffered to a certain extent, thereby reducing the vibration of the probe cavity 3. A supporting arc plate 60 is installed on the outer ring of the probe mounting section of the probe cavity 3, and a damping rod 61 is connected between the supporting arc plate 60 and the outer shell 1. Two damping rods 61 are connected to each supporting arc plate 60, and a triangular structure is formed between the two damping rods 61 and the outer shell 1, thereby achieving buffering of the radial impact force of the probe cavity 3.

[0021] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multifunctional portable air quality detector, characterized in that: Outer shell, pushing mechanism, probe cavity, cleaning handle; The probe cavity is a pipe pile structure, with a probe installation section with a thinner inner diameter in the middle and connecting sections with a thicker inner diameter at both ends; The outer shell is provided with a collection port at the top, a collection tube is rotatably installed in the collection port, the pushing mechanism is installed inside the outer shell, a pressing plate is rotatably installed on the moving part of the pushing mechanism, and support guide grooves are arranged in a matrix at equal angles on the outer ring side of the collection tube, a support rod is slidably installed in the support guide groove, the upper end of the support rod is fixed on the pressure plate, a brush is installed on the support rod, and when the pushing mechanism pushes the pressure plate to move downward, the support rod connected to the pressure plate can push the brush into the probe installation section of the probe cavity; The cleaning handle is hingedly mounted on the outer shell, one end of the cleaning handle away from the hinge point is connected with a rack, a one-way ratchet is mounted on the collection tube, an outer fixed ring of the one-way ratchet has a toothed ring, and the rack is meshed with the toothed ring.

2. A multifunctional portable air quality detector according to claim 1, characterized in that: The pushing mechanism includes a supporting sleeve, a guiding sleeve, a pressing sleeve, a cooperating sleeve and a pressing spring. The guiding sleeve is fixedly mounted on the supporting sleeve. The guiding sleeve is provided with pushing guide grooves in a matrix at equal angles. The pressing sleeve is slidably mounted on the pushing guide grooves. The cooperating sleeve is provided with an external convex rod which can be inserted into the pushing guide groove. A limiting ring is fixed on the collecting tube. The cooperating sleeve is located on the upper part of the limiting ring. The pressing spring is located between the limiting ring and the cooperating sleeve.

3. A multifunctional portable air quality detector according to claim 2, characterized in that: An adjusting slide is arranged on the outer shell, a sliding switch is arranged in the adjusting slide, a shifting rod is fixed on the sliding switch, and the shifting rod is connected to the top pressing sleeve.

4. A multifunctional portable air quality detector according to claim 2, characterized in that: A first sawtooth is provided at the lower end of the guide sleeve, one side of the first sawtooth is a vertical surface set along the axis of the guide sleeve, and the other side is an inclined surface. There is a complete first sawtooth between two adjacent pushing guide grooves, and one side of the pushing guide groove coincides with the vertical surface of the first sawtooth at its end. A second sawtooth is provided at the lower end of the top pressure sleeve, and both sides of the second sawtooth are guide inclined surfaces, one side of which is parallel to the inclined surface of the first sawtooth, and the side guide inclined surface intersects with the section through the axis of the guide sleeve where the end point of the first sawtooth is located. The upper end of the outer convex rod is provided with a beveled surface parallel to the inclined surface on the first sawtooth, and the upper end of the outer convex rod can contact the first sawtooth and the second sawtooth.

5. A multifunctional portable air quality detector according to claim 2, characterized in that: The pressure plate is located between the top pressure spring and the cooperative sleeve, and a supporting bearing is arranged between the pressure plate and the cooperative sleeve.

6. A multifunctional portable air quality detector according to claim 2, characterized in that: The support sleeve, the top pressure sleeve and the cooperative sleeve are all coaxial with the collection pipe, and the ring sleeve is installed on the collection pipe.

7. A multifunctional portable air quality detector according to claim 1, characterized in that: A fan is installed at the bottom of the outer shell, an air duct is provided on the upper part of the fan, the lower end of the probe cavity is inserted into the air duct, a connecting ring is provided on the upper end of the air duct, a first rubber ring is installed at the lower end of the probe cavity, and a first shock-absorbing spring is provided between the connecting ring and the first rubber ring.

8. A multifunctional portable air quality detector according to claim 1, characterized in that: A second rubber ring is provided at the lower end of the collection tube, and the second rubber ring is located inside the upper connecting section of the probe cavity. The support rod passes through the second rubber ring and is connected to a pressure ring pad.

9. A multifunctional portable air quality detector according to claim 8, characterized in that: A second shock-absorbing spring is installed between the second rubber ring and the upper end of the probe cavity.

10. A multifunctional portable air quality detector according to claim 1, characterized in that: A supporting arc plate is installed on the outer ring of the probe installation section of the probe cavity, and a damping rod is connected between the supporting arc plate and the outer shell.

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