Device for detecting VOC gas exhaled by human body

Abstract

The utility model discloses a human body exhaled VOC gas detection device relates to VOC gas detection technical field, including gas detector and detection probe, the detection probe is provided the top end of gas detector, the top end of gas detector is provided with the protection subassembly outside the detection probe, and the protection subassembly is provided with the detection probe. The protection assembly comprises a transparent box and a plastic joint, and the transparent box and the plastic joint are welded with each other; the detection probe disclosed by the utility model can be in full contact with gas in the transparent box for detection, so that the gas in the transparent box is prevented from being influenced by the gas outside the transparent box, the transparent box does not need to be held for a long time, and keys of the gas detector are convenient to operate; when the detection probe pushes the limiting sleeve to move, external gas entering the sliding plate can be reduced, the gas concentration in the transparent box can be increased, and VOC trace gas in the transparent box can be detected more easily.

Description

Technical Field

[0001] The utility model relates to the technical field of VOC gas detection, in particular to a device for detecting VOC gas exhaled by a human body. Background Art

[0002] VOC gas detection is used for VOCs monitoring in petrochemical industry, printing industry, pharmaceutical industry, electronics industry, automobile industry and other places. Some workers working in VOC gas will affect their health. By detecting the VOC gas exhaled by people, we can know their physical condition.

[0003] The existing human exhaled VOC gas detection devices have certain drawbacks. The detection probe cannot fully contact the exhaled gas. In addition, the VOC gas exhaled by the human body is easily dissipated in the external air. Direct detection of the exhaled gas will cause large errors in the detection results. The concentration of the exhaled gas will also be affected by the external gas. Utility Model Content

[0004] The purpose of the utility model is to provide a device for detecting VOC gases exhaled by a human body, so as to solve the problems raised in the above-mentioned background technology.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A device for detecting VOC gas exhaled by a human body comprises a gas detector and a detection probe, wherein the detection probe is arranged at the top of the gas detector, and a protective component is provided at the top of the gas detector and located on the outside of the detection probe, wherein the protective component comprises a transparent box and a plastic joint, wherein the transparent box and the plastic joint are fused to each other, and a clamping block is provided at the edge of the plastic joint, and a fixing plate is fixedly installed at the top of the gas detector, and a matching slot is fused to the edge of the fixing plate, and the matching slot of the fixing plate is connected to the clamping block of the plastic joint, and the detection probe passes through the interior of the plastic joint.

[0007] As a preferred technical solution of the utility model, the middle of the fixing plate is adapted to the middle of the plastic joint, and the plastic joint is connected to the fixing plate via threads, and a rubber plug is detachably installed in the middle of the plastic joint.

[0008] As a preferred technical solution of the utility model, the cylindrical surface of the detection probe is matched with the interior of the fixing plate and the interior of the plastic joint, and a sealing ring is provided in the middle of the plastic joint and at a position matched with the detection probe.

[0009] As a preferred technical solution of the utility model, a clamping structure is arranged inside the transparent box, and the clamping structure includes a sliding plate, which is slidably connected to the inside of the transparent box, a limiting sleeve is welded in the middle of the sliding plate, a ventilation groove is opened on the cylindrical surface of the limiting sleeve, and a limiting block is arranged on the inner wall of the transparent box, and the position of the limiting block corresponds to the position where the end of the detection probe is inserted into the transparent box.

[0010] As a preferred technical solution of the utility model, the inner wall of the transparent box and the edge of the sliding plate are provided with matching sliding grooves, and the edge of the sliding plate is slidably connected with the sliding groove of the transparent box.

[0011] As a preferred technical solution of the present invention, the end of the detection probe is plugged into the interior of the limiting sleeve, and the interior of the limiting sleeve is in detachable contact with the end of the detection probe.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] A protective component is provided to store the exhaled VOC gas inside the transparent box. The detection probe can fully contact and detect the gas inside the transparent box to prevent the gas inside the transparent box from being affected by the gas outside the transparent box. In addition, there is no need to hold the transparent box for a long time, which makes it convenient to operate the buttons of the gas detector.

[0014] A clamping structure is provided, and when the detection probe pushes the limit sleeve to move, it can not only reduce the external gas from entering the interior of the sliding plate, but also increase the gas concentration inside the transparent box, which is more conducive to detecting the VOC trace gas inside the transparent box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the separation of the detection probe and the protection component of the utility model;

[0017] Figure 2 It is a schematic diagram of the protection component of the utility model;

[0018] Figure 3 This is a schematic diagram of a rubber plug of the utility model;

[0019] Figure 4 It is a schematic diagram of the compression structure of the utility model.

[0020] In the figure: 1. Gas detector; 2. Detection probe; 3. Protection component; 4. Compression structure; 31. Transparent box; 32. Plastic joint; 33. Clamping block; 34. Fixing plate; 35. Matching slot; 36. Rubber plug; 37. Sealing ring; 41. Sliding plate; 42. Limiting sleeve; 43. Ventilation groove; 44. Limiting block. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1:

[0023] See also Figure 1 - Figure 4 As shown, a human exhaled VOC gas detection device includes a gas detector 1 and a detection probe 2. The detection probe 2 is arranged at the top of the gas detector 1, and can be in contact with the VOC gas exhaled by the human body through the detection probe 2, so that the detection probe 2 can know some gas components in the VOC exhaled by the human body. The top of the gas detector 1 and the outer sleeve of the detection probe 2 are provided with a protective component 3, and the protective component 3 includes a transparent box 31 and a plastic joint 32. The transparent box 31 and the plastic joint 32 are fused to each other, and the exhaled gas can be collected inside the transparent box 31 and the plastic joint 32, so that the transparent box 31 and the plastic joint 32 are inserted into the position of the detection probe 2, and the edge of the plastic joint 32 is opened. A clamping block 33 is provided, and a fixing plate 34 is fixedly installed on the top of the gas detector 1. A matching slot 35 is fused to the edge of the fixing plate 34. The matching slot 35 of the fixing plate 34 is connected to the clamping block 33 of the plastic joint 32. The detection probe 2 passes through the interior of the plastic joint 32. The detection probe 2 is inserted into the middle of the plastic joint 32, and then the plastic joint 32 is threadedly connected to the fixing plate 34, so that the clamping block 33 of the plastic joint 32 is engaged with the matching slot 35 of the fixing plate 34 to prevent the tightened plastic joint 32 from loosening. At this time, the collected exhaled gas is stored in the transparent box 31 to prevent the exhaled VOC gas from being affected by other gases and causing inaccurate exhaled gas.

[0024] In this embodiment, the middle of the fixing plate 34 is adapted to the middle of the plastic joint 32, and the plastic joint 32 is connected to the fixing plate 34 through threads. A rubber plug 36 is detachably installed in the middle of the plastic joint 32. The rubber plug 36 can be pulled out of the plastic joint 32, and then the detection probe 2 is inserted into the interior of the plastic joint 32, and the plastic joint 32 and the fixing plate 34 are screwed together.

[0025] In this embodiment, the cylindrical surface of the detection probe 2 is adapted to the interior of the fixing plate 34 and the interior of the plastic joint 32. A sealing ring 37 is provided in the middle of the plastic joint 32 and at the position adapted to the detection probe 2. When the detection probe 2 is inserted into the middle of the plastic joint 32, the gas can be blocked by the sealing ring 37, thereby reducing the gas from entering the interior of the transparent box 31.

[0026] In this embodiment, a clamping structure 4 is provided inside the transparent box 31, and the clamping structure 4 includes a sliding plate 41, which is slidably connected to the inside of the transparent box 31, and a limiting sleeve 42 is fused in the middle of the sliding plate 41. The end of the detection probe 2 is against the limiting sleeve 42, so that the limiting sleeve 42 and the sliding plate 41 slide along the inside of the transparent box 31, and the cylindrical surface of the limiting sleeve 42 is provided with a ventilation groove 43, which can compress the gas in the transparent box 31 and discharge it from the ventilation groove 43, and also reduce the external gas from entering the sliding plate 41. A limiting block 44 is provided on the inner wall of the transparent box 31, and the position of the limiting block 44 corresponds to the position where the end of the detection probe 2 is inserted into the transparent box 31. When the detection probe 2 is fully extended into the interior of the transparent box 31, the sliding plate 41 is in contact with the limiting block 44, so as to prevent the sliding plate 41 from continuing to slide along the inside of the transparent box 31.

[0027] In this embodiment, the inner wall of the transparent box 31 and the edge of the sliding plate 41 are provided with matching sliding grooves, the edge of the sliding plate 41 is slidably connected to the sliding groove of the transparent box 31, and the sliding plate 41 slides along the sliding groove, which can ensure that the sliding plate 41 slides along the inside of the transparent box 31.

[0028] In this embodiment, the end of the detection probe 2 is plugged into the interior of the limit sleeve 42, and the interior of the limit sleeve 42 is in detachable contact with the end of the detection probe 2. When the end of the detection probe 2 is engaged with the interior of the limit sleeve 42, it can be simultaneously pushed into the interior of the transparent box 31. When the detection probe 2 is pulled out, the sliding plate 41 can be pulled outward, and finally the detection probe 2 can be pulled out of the limit sleeve 42.

[0029] When the utility model is in use, the exhaled gas is collected through the transparent box 31. If it is necessary to detect the VOC gas present in the exhaled gas, the transparent box 31 storing the VOC gas is placed into the end of the detection probe 2. Specifically, the rubber plug 36 at the transparent box 31 is taken out, and then the detection probe 2 is inserted into the middle position of the plastic joint 32 until the plastic joint 32 is screwed with the fixing plate 34, and the clamping block 33 is in contact with the matching slot 35, so as to reduce the loosening caused by the relative rotation of the plastic joint 32 and the fixing plate 34, and there is no need to hold the transparent box 31 for a long time, so it is convenient to operate the buttons of the gas detector 1. The end of the detection probe 2 is located inside the transparent box 31, so that the gas inside the transparent box 31 is less affected by the gas outside the transparent box 31, and the VOC gas detection The measurement result is more accurate. In order to prevent external gas from entering the interior of the transparent box 31, when the detection probe 2 is inserted into the interior of the transparent box 31, the end of the detection probe 2 contacts the limiting sleeve 42 of the sliding plate 41, and the end of the detection probe 2 is clamped inside the limiting sleeve 42. The sliding plate 41 can be pushed along with the detection probe 2, and the gas in the transparent box 31 can be pressed into the end of the detection probe 2, so that the detection probe 2 can detect a higher concentration of gas, and some VOC gases with a relatively good content can be detected. After the detection is completed, the detection probe 2 is pulled out from the interior of the transparent box 31. At this time, due to the interference fit between the end of the detection probe 2 and the interior of the limiting sleeve 42, the sliding plate 41 can be moved back together until the detection probe 2 is pulled out from the interior of the limiting sleeve 42.

[0030] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A VOC gas detection device exhaled by a human body, comprising a gas detector (1) and a detection probe (2), wherein the detection probe (2) is arranged at the top of the gas detector (1); characterized in that: A protective component (3) is provided at the top of the gas detector (1) and located outside the detection probe (2). The protective component (3) includes a transparent box (31) and a plastic joint (32). The transparent box (31) and the plastic joint (32) are fused to each other. A clamping block (33) is provided at the edge of the plastic joint (32). A fixing plate (34) is fixedly installed at the top of the gas detector (1). A matching slot (35) is fused to the edge of the fixing plate (34). The matching slot (35) of the fixing plate (34) is connected to the clamping block (33) of the plastic joint (32). The detection probe (2) passes through the interior of the plastic joint (32).

2. A human exhaled VOC gas detection device according to claim 1, characterized in that: The middle of the fixing plate (34) is matched with the middle of the plastic joint (32), and the plastic joint (32) is connected to the fixing plate (34) through threads, and a rubber plug (36) is detachably installed in the middle of the plastic joint (32).

3. A human exhaled VOC gas detection device according to claim 2, characterized in that: The cylindrical surface of the detection probe (2) is compatible with the interior of the fixing plate (34) and the interior of the plastic joint (32), and a sealing ring (37) is provided in the middle of the plastic joint (32) at a position compatible with the detection probe (2).

4. A human exhaled VOC gas detection device according to claim 3, characterized in that: A clamping structure (4) is arranged inside the transparent box (31), and the clamping structure (4) comprises a sliding plate (41), the sliding plate (41) is slidably connected to the inside of the transparent box (31), a limiting sleeve (42) is welded in the middle of the sliding plate (41), and a venting groove (43) is provided on the cylindrical surface of the limiting sleeve (42), and a limiting block (44) is arranged on the inner wall of the transparent box (31), and the position of the limiting block (44) corresponds to the position of the end of the detection probe (2) inserted into the transparent box (31).

5. A human exhaled VOC gas detection device according to claim 4, characterized in that: The inner wall of the transparent box (31) and the edge of the sliding plate (41) are provided with matching sliding grooves, and the edge of the sliding plate (41) is slidably connected with the sliding groove of the transparent box (31).

6. A human exhaled VOC gas detection device according to claim 5, characterized in that: The end of the detection probe (2) is plugged into the interior of the limiting sleeve (42), and the interior of the limiting sleeve (42) is in detachable contact with the end of the detection probe (2).

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