Portable handheld VOC detector for environmental protection monitoring

Abstract

The utility model discloses a portable hand-held VOC detector for environmental protection monitoring, which comprises a testing device shell, a placing groove is arranged inside the testing device shell, a second pull block is slidably connected inside the testing device shell and above the placing groove, one side of the second pull block is fixedly connected with a baffle plate, and the other side of the second pull block is fixedly connected with a baffle plate. A second filter plate and a first filter plate are slidably connected to the position, located on one side of the containing groove, in the testing device shell. According to the portable handheld VOC detector for environmental protection monitoring, dirt can be filtered by a second filter plate, the dirt is prevented from entering the interior of the testing device shell through an air inlet rod to influence a detection result, and external dust can be prevented from entering the interior of the testing device shell through an exhaust pipe by a first filter plate; the phenomenon of dust accumulation in the shell of the testing device is avoided, and the service life of the detector is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of detectors, in particular to a portable handheld VOC detector for environmental monitoring. Background Art

[0002] As the name suggests, a VOC gas detector is an instrument that detects the VOC content in the air. VOC is a volatile organic compound that can cause harm and is relatively dangerous. It is commonly found in factory workshops that produce exhaust gas. In order to have a better air environment, a VOC gas detector is needed to detect the air in such factory workshops to determine whether their exhaust gas emissions meet the standards so that timely rectification can be carried out.

[0003] The utility model patent application number CN202222070998.5 proposes a handheld VOC gas detector. This device incorporates a protective sleeve and a fixed tube. The fixed tube's shape makes it easier for the user to hold. The first rubber ring attached to its outer wall also provides a certain degree of anti-slip properties, reducing the likelihood of the user accidentally removing the detector and preventing it from falling and being damaged. The protective sleeve, which fits over the exterior of the detector body, cushions the impact of a drop, further reducing the likelihood of damage.

[0004] When the detector in the above patent is in use, it does not filter impurities in the VOC gas detector. Dust in the air can easily enter the interior of the detector body through the exhaust hole and accumulate on the circuit board inside the detector body. In addition, due to the presence of the sampling rod, the space occupied by the entire VOC detector will be relatively large, and the storage box for storing the VOC detector is not very large, which makes the VOC detector inconvenient to store. Therefore, a portable handheld VOC detector for environmental monitoring is provided to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the present invention provides a portable handheld VOC detector for environmental monitoring to solve the problems raised in the above background technology:

[0006] When the detector is in use, it does not filter out impurities in the VOC gas detector. Dust in the air can easily enter the interior of the detector body through the exhaust holes and accumulate on the circuit board inside the detector body. Due to the presence of the sampling rod, the entire VOC detector occupies a relatively large space, and the storage boxes for the VOC detectors are not very large, making the VOC detector inconvenient to store.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A portable handheld VOC detector for environmental monitoring includes a test device shell, a placement slot is provided inside the test device shell, a second pull block is slidably connected to the inside of the test device shell and above the placement slot, a baffle is fixedly connected to one side of the second pull block, a second filter plate and a first filter plate are slidably connected to the inside of the test device shell and on one side of the placement slot, a mounting plate is provided on the outside of the test device shell, the second filter plate and the first filter plate are fixedly connected to the mounting plate, a slider is slidably connected to the inside of the test device shell, a block is fixedly connected to one side of the slider, and the mounting plate is provided inside There is a card slot used in conjunction with the card block, and the second filter plate filters dirt to prevent dirt from entering the interior of the test device shell through the air intake rod and affecting the test results. The first filter plate can prevent external dust from entering the interior of the test device shell through the exhaust pipe, avoiding dust accumulation inside the test device shell, extending the service life of the detector, and improving the detection accuracy. When the device is finished using, the air intake rod is rotated in the opposite direction to separate it from the test device shell. The separated air intake rod is placed in the placement slot for storage. The second pull block pushes the baffle to move under the elastic force of the third spring, and the baffle blocks and limits the air intake rod, thereby achieving the effect of easy storage.

[0009] Preferably, a connecting rod is slidably connected to the inside of the testing device housing, and the connecting rod is fixedly connected to the slider. The bottom of the connecting rod is fixedly connected to a first pull block, and a second spring is sleeved on the outside of the connecting rod and on one side of the slider. When the mounting plate needs to be disassembled, the first pull block is pulled to move the slider through the connecting rod, and the slider squeezes the second spring, and the slider drives the card block to slide inside the card slot.

[0010] Preferably, a limiting groove is provided inside the shell of the testing device, and a limiting plate is slidably connected inside the limiting groove. The limiting plate is fixedly connected to the mounting plate, so as to facilitate limiting the mounting plate and prevent the mounting plate from shifting during movement.

[0011] Preferably, a first spring is fixedly connected to the inside of the placement slot, a slide is fixedly connected to the top of the first spring, the slide is slidingly connected to the placement slot, and a third spring is symmetrically fixedly connected to the side of the second pull block away from the baffle. Under the elastic force of the first spring, the slide pushes the air intake rod to be exposed from the inside of the placement slot, and the user will take out the air intake rod.

[0012] Preferably, a battery is fixedly connected to the inside of the testing device shell, and an air intake rod is threadedly connected to the inside of the testing device shell and above the battery. The battery is electrically connected to the PID sensor and the air pump, thereby providing power to the device and can be used outdoors or without an external power supply.

[0013] Preferably, the interior of the outer shell of the test device is fixedly connected to an inner shell, the interior of the inner shell is fixedly connected to an air pump and a PID sensor, the air outlet of the air pump is connected to the PID sensor through a pipe, and the interior of the outer shell of the test device is equidistantly fixedly connected to an exhaust pipe. When it is necessary to detect the gas, the air pump is started to suck the gas to be detected into the air inlet rod. The gas to be detected in the air inlet rod is filtered through the second filter plate and then enters the connecting pipe through the air pump, and then enters the PID sensor for detection, and the detection result is displayed on the display screen.

[0014] This utility model provides a portable handheld VOC detector for environmental monitoring. Compared with the existing technology, it has the following advantages:

[0015] 1. The portable handheld VOC detector for environmental monitoring, through the arrangement of the second filter plate, the first filter plate and the mounting plate, can enable the second filter plate to filter dirt, preventing dirt from entering the interior of the test device housing through the air intake rod and affecting the test results. The first filter plate can prevent external dust from entering the interior of the test device housing through the exhaust pipe, avoiding the accumulation of dust inside the test device housing, extending the service life of the detector, and improving the detection accuracy.

[0016] 2. The portable handheld VOC detector for environmental monitoring can separate the air intake rod from the test device housing and place it in the placement slot for storage through the placement of the placement slot and the baffle. The baffle limits and fixes the air intake rod, thereby achieving the effect of easy storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the enlarged three-dimensional structure at point A;

[0020] Figure 4 This is a schematic diagram of the enlarged three-dimensional structure at point B.

[0021] In the figure: 1. Test device housing; 2. Baffle; 3. Exhaust pipe; 4. Inlet rod; 5. Mounting plate; 6. Placement slot; 7. Air pump; 8. Slide plate; 9. First spring; 10. First filter plate; 11. Battery; 12. Limiting slot; 13. Limiting plate; 14. Second filter plate; 15. Inner shell; 16. PID sensor; 17. Second spring; 18. Block; 19. Slot; 20. First pull block; 21. Connecting rod; 22. Slider; 23. Second pull block; 24. Third spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 The utility model provides a technical solution: a portable handheld VOC detector for environmental monitoring, comprising a test device housing 1, a placement slot 6 is provided inside the test device housing 1, a second pull block 23 is slidably connected to the inside of the test device housing 1 and above the placement slot 6, a baffle 2 is fixedly connected to one side of the second pull block 23, a second filter plate 14 and a first filter plate 10 are slidably connected to the inside of the test device housing 1 and on one side of the placement slot 6, a mounting plate 5 is provided on the outside of the test device housing 1, the second filter plate 14 and the first filter plate 10 are fixedly connected to the mounting plate 5, a slider 22 is slidably connected to the inside of the test device housing 1, a block 18 is fixedly connected to one side of the slider 22, the inside of the mounting plate 5 A card slot 19 is provided for use with the card block 18, and the second filter plate 14 filters dirt to prevent dirt from entering the interior of the test device housing 1 through the air intake rod 4 and affecting the test results. The first filter plate 10 can prevent external dust from entering the interior of the test device housing 1 through the exhaust pipe 3, avoiding the accumulation of dust inside the test device housing 1, extending the service life of the detector, and improving the detection accuracy. When the device is finished using, the air intake rod 4 is rotated in the opposite direction to separate it from the test device housing 1. The separated air intake rod 4 is placed in the placement slot 6 for storage. The second pull block 23 pushes the baffle 2 to move under the elastic force of the third spring 24, and the baffle 2 blocks and limits the air intake rod 4, thereby achieving the effect of facilitating storage.

[0024] Furthermore, a connecting rod 21 is slidably connected to the inside of the test device housing 1, and the connecting rod 21 is fixedly connected to the slider 22. The bottom of the connecting rod 21 is fixedly connected to the first pull block 20, and a second spring 17 is sleeved on the outside of the connecting rod 21 and on one side of the slider 22. When the mounting plate 5 needs to be disassembled, the first pull block 20 is pulled to move the slider 22 through the connecting rod 21, and the slider 22 squeezes the second spring 17, and the slider 22 drives the card block 18 to slide inside the card slot 19.

[0025] Furthermore, a limiting groove 12 is opened inside the test device housing 1, and a limiting plate 13 is slidably connected inside the limiting groove 12. The limiting plate 13 is fixedly connected to the mounting plate 5, which is convenient for limiting the mounting plate 5 and preventing the mounting plate 5 from shifting during movement.

[0026] Furthermore, a first spring 9 is fixedly connected to the inside of the placement slot 6, a slide 8 is fixedly connected to the top of the first spring 9, the slide 8 is slidingly connected to the placement slot 6, and a third spring 24 is symmetrically fixedly connected to the side of the second pull block 23 away from the baffle 2. Under the elastic force of the first spring 9, the slide 8 pushes the air intake rod 4 to be exposed from the inside of the placement slot 6, and the user will take out the air intake rod 4.

[0027] Furthermore, a battery 11 is fixedly connected to the inside of the test device housing 1, and an air intake rod 4 is threadedly connected to the inside of the test device housing 1 and above the battery 11. The battery 11 is electrically connected to the PID sensor 16 and the air pump 7, thereby providing power to the device and can be used outdoors or without an external power supply.

[0028] Furthermore, the interior of the test device shell 1 is fixedly connected to an inner shell 15, and the interior of the inner shell 15 is fixedly connected to an air pump 7 and a PID sensor 16. The air outlet of the air pump 7 is connected to the PID sensor 16 through a pipe, and the interior of the test device shell 1 is equidistantly fixed with an exhaust pipe 3. When it is necessary to detect the gas, the air pump 7 is started to suck the gas to be detected into the air inlet rod 4. The gas to be detected in the air inlet rod 4 is filtered through the second filter plate 14 and then enters the connecting pipe through the air pump 7, and then enters the PID sensor 16 for detection. The detection result is displayed on the display screen.

[0029] During operation, the user pulls the second pull block 23 to drive the baffle 2 to squeeze the third spring 24. The slide plate 8 pushes the air intake rod 4 out from the inside of the placement slot 6 under the elastic force of the first spring 9. The user takes out the air intake rod 4, rotates the air intake rod 4 and fixes it with threads on the test device housing 1, pushes the mounting plate 5 to contact the test device housing 1, and makes the second filter plate 14 and the first filter plate 10 enter the interior of the test device housing 1. The battery 11 is electrically connected to the PID sensor 16 and the air pump 7, which can provide power for the device and can be used outdoors or without an external power supply. When gas detection is required, the air pump 7 is started to suck the gas to be detected into the air intake rod 4. The gas to be detected in the air intake rod 4 is filtered through the second filter plate 14 and then enters the connecting pipe through the air pump 7, and then enters the PID sensor 16 for detection. The results are displayed on the display screen, and the detected gas is blown to the first filter plate 10 through the connecting pipe. The air passing through the first filter plate 10 is discharged from the detector through the exhaust pipe 3. The second filter plate 14 filters the dirt to prevent the dirt from entering the inside of the test device housing 1 through the air intake rod 4 and affecting the test results. The first filter plate 10 can prevent external dust from entering the inside of the test device housing 1 through the exhaust pipe 3, avoiding the accumulation of dust inside the test device housing 1, extending the service life of the detector, and improving the detection accuracy. When the device is finished using, the air intake rod 4 is rotated in the opposite direction to separate it from the test device housing 1. The separated air intake rod 4 is placed in the placement groove 6 for storage. The second pull block 23 pushes the baffle 2 to move under the elastic force of the third spring 24, and the baffle 2 blocks and limits the air intake rod 4, thereby achieving the effect of easy storage.

[0030] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0032] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable handheld VOC detector for environmental monitoring, comprising a test device housing (1), characterized in that: A placement slot (6) is provided inside the test device housing (1), a second pull block (23) is slidably connected inside the test device housing (1) and located above the placement slot (6), a baffle (2) is fixedly connected to one side of the second pull block (23), a second filter plate (14) and a first filter plate (10) are slidably connected inside the test device housing (1) and located on one side of the placement slot (6), a mounting plate (5) is provided on the outside of the test device housing (1), the second filter plate (14) and the first filter plate (10) are both fixedly connected to the mounting plate (5), a slider (22) is slidably connected inside the test device housing (1), a clamping block (18) is fixedly connected to one side of the slider (22), and a clamping slot (19) for use with the clamping block (18) is provided inside the mounting plate (5).

2. The portable handheld VOC detector for environmental monitoring according to claim 1, characterized in that: A connecting rod (21) is slidably connected to the interior of the test device housing (1), the connecting rod (21) is fixedly connected to the slider (22), the bottom of the connecting rod (21) is fixedly connected to a first pull block (20), and a second spring (17) is sleeved on the outside of the connecting rod (21) and on one side of the slider (22).

3. The portable handheld VOC detector for environmental monitoring according to claim 1, characterized in that: A limiting groove (12) is provided inside the testing device housing (1), a limiting plate (13) is slidably connected inside the limiting groove (12), and the limiting plate (13) is fixedly connected to the mounting plate (5).

4. The portable handheld VOC detector for environmental monitoring according to claim 1, characterized in that: A first spring (9) is fixedly connected to the interior of the placement groove (6), a slide plate (8) is fixedly connected to the top of the first spring (9), and the slide plate (8) is slidably connected to the placement groove (6), and a third spring (24) is symmetrically fixedly connected to the side of the second pull block (23) away from the baffle (2).

5. The portable handheld VOC detector for environmental monitoring according to claim 1, characterized in that: A battery (11) is fixedly connected to the interior of the test device housing (1), and an air intake rod (4) is threadedly connected to the interior of the test device housing (1) and above the battery (11).

6. The portable handheld VOC detector for environmental monitoring according to claim 1, characterized in that: The interior of the test device housing (1) is fixedly connected to an inner housing (15), the interior of the inner housing (15) is fixedly connected to an air pump (7) and a PID sensor (16), the air outlet of the air pump (7) is connected to the PID sensor (16) via a pipeline, and the interior of the test device housing (1) is fixedly connected to an exhaust pipe (3) at equal intervals.

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