VOC detector with telescopic probe

Abstract

The utility model relates to a VOC (volatile organic compound) detector with a telescopic probe, which comprises a machine body, a lifting component and an air inlet pipe, the machine body comprises an outer shell, a detector and a filter, both the detector and the filter are arranged in an inner cavity of the outer shell, and the filter is connected with the input end of the detector; one end of the air inlet pipe is connected and communicated with the filter, and the position state of the other end of the air inlet pipe is adjusted by utilizing a lifting assembly mounted in the outer shell, so that the end part of the air inlet pipe can be moved into or out of the outer shell. Through cooperative arrangement of the lifting assembly and the air inlet pipe, when the equipment is carried or not used, the hard pipe can be adjusted to be stored in the outer shell through the lifting assembly, and the influence of accumulation of dust and impurities in the outer shell on detection is reduced; and when the hard pipe is stored in the outer shell, the dustproof cover can be used for assisting in shielding the notch in the outer shell and the hard pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of VOC detectors, in particular to a VOC detector with a retractable probe. Background Art

[0002] VOC detection equipment is used to continuously measure toxic and harmful organic VOC gases in dangerous or industrial environments. During detection, VOC gas enters the detection equipment from the air intake port of the detection equipment. When the VOC detection equipment is not working, there is no obstruction in the air intake pipe used for air intake, and it is easier for debris to enter the port, which will affect the normal use of the VOC equipment next time.

[0003] In order to solve the above problems, a VOC detection device with a detachable closed structure for an air inlet is proposed in a utility model patent such as Chinese patent publication number CN216696219U. When the VOC device is not in use, the inlet plug is inserted into the air inlet pipe to prevent debris from entering the air inlet.

[0004] However, in order to adapt to the inner diameter of the intake pipe and seal it, the inlet plug used needs to be made of elastic materials such as elastic rubber. When the inlet plug and the inner diameter of the intake pipe are closely matched, it is more difficult to insert the inlet plug into the intake pipe or to pull it out from the intake pipe port; when the inlet plug and the inner diameter of the intake pipe are poorly matched, there will be a gap between the inlet plug and the inner wall of the intake pipe, resulting in poor sealing effect of the inlet plug on the intake pipe. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a VOC detector with a retractable probe, which solves the problem that the air intake pipe of the VOC detector is inconvenient to block the entry of debris when the VOC detector is not used for detection.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a VOC detector with a retractable probe, comprising a body, wherein the body comprises an outer shell, a detector and a filter, wherein the detector and the filter are both installed in the inner cavity of the outer shell, and the filter is connected to the input end of the detector, and further comprises a lifting assembly and an air intake pipe, wherein one end of the air intake pipe is connected to the filter, and the other end of the air intake pipe is adjusted in position by using the lifting assembly installed in the outer shell, so that the end of the air intake pipe can be moved into or out of the outer shell.

[0009] Among them, the air intake pipe includes a soft tube and a hard tube, the adjacent ends of the soft tube and the hard tube are connected and fixed to each other, and the inner cavities of the two are connected, the other end of the soft tube is connected and fixed to the filter, the lifting assembly drives the hard tube to be connected, the hard tube is set to be a stainless steel tube, and the soft tube is set to be a rubber hose or a corrugated tube.

[0010] Preferably, the lifting assembly includes a connecting frame, a guide rod and a screw rod, the middle part of the connecting frame is sleeved and fixed on the lower end of the outer wall of the hard tube, and the two ends of the connecting frame are sleeved on the guide rod and the screw rod respectively, the connecting frame is slidingly connected to the guide rod, the connecting frame is threadedly connected to the screw rod, the top end of the guide rod is fixed on the top inner wall of the outer shell, the top end of the screw rod passes through to the outside of the outer shell, and the screw rod is rotatably connected to the outer shell.

[0011] In a further embodiment, a notch is formed on the top of the outer shell towards the hard tube, a dust cover is pivotally connected in the notch, the dust cover covers the notch on the outer shell, the dust cover comprises a cover body, a positioning shaft and a torsion spring, the positioning shaft passes through the cover body and is fixedly connected to the outer shell, so that the cover body is movably arranged in the notch of the outer shell by means of the positioning shaft, the torsion spring is sleeved on the positioning shaft, and the end of the torsion spring is fixedly connected to the cover body.

[0012] In a further embodiment, a limiting ring is fixedly connected to the top inner wall of the outer shell, the limiting ring is located below the cover body, and the inner diameter of the limiting ring is smaller than the width of the cover body and larger than the outer diameter of the hard tube.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a VOC detector with a retractable probe, which has the following beneficial effects:

[0015] 1. In the utility model, the lifting assembly and the air inlet pipe are arranged in coordination, so that when the device is carried or not in use, the lifting assembly can be used to adjust the hard pipe to be stored in the outer shell, thereby reducing the influence of dust and impurities accumulated in the outer shell on the detection, and reducing the deformation and damage of the hard pipe caused by accidental collision.

[0016] 2. In the utility model, by using the dust cover in conjunction with the air inlet pipe, when the hard tube is put into the outer shell, the dust cover can be used to assist in covering the gap on the outer shell, thereby reducing the entry of dust and impurities into the outer shell, and when the hard tube is removed from the outer shell for inspection, the cover can be pushed and deflected to open, making the operation and use of the equipment more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1is a schematic diagram of the overall structure of a VOC detector with a retractable probe according to the implementation scheme;

[0018] Figure 2 for Figure 1 A schematic diagram of the internal structure of a VOC detector with a retractable probe;

[0019] Figure 3 Schematic diagram of the structure of a dust cover according to an embodiment.

[0020] In the figure: 10, machine body; 11, outer shell; 12, detector; 13, filter; 20, dust cover; 21, cover body; 22, positioning shaft; 23, torsion spring; 30, lifting assembly; 31, connecting frame; 32, guide rod; 33, screw rod; 40, air inlet pipe; 41, soft pipe; 42, hard pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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] See also Figure 1 and Figure 2 A VOC detector with a retractable probe may include a body 10, a dust cover 20, a lifting assembly 30 and an air inlet pipe 40. The body 10 is used to detect VOC gas; the lifting assembly 30 installed in the outer shell 11 is used to adjust the position of the air inlet pipe 40 so that the top end of the air inlet pipe 40 can be moved into the body 10 for storage or removed from the body 10 for detection; the dust cover 20 assists in shielding the air inlet pipe 40 when it is retracted into the body 10.

[0023] In this embodiment, the body 10 may include an outer shell 11, a detector 12, a filter 13, and a display screen and operation buttons installed on the front of the outer shell 11. The detector 12 and the filter 13 are both installed in the inner cavity of the outer shell 11, and the filter 13 is connected to the input end of the detector 12, so that during detection, the drawn-in gas can be first filtered to remove larger impurities and then detected by the detector 12. One end of the air intake pipe 40 is connected to the filter 13, so that the collected gas can flow through the air intake pipe 40 and the filter 13 into the detector 12. The detector 12 and the filter 13 used in the VOC detector are both known technologies and will not be repeated here. A notch is opened at the top of the outer shell 11, so that the air intake pipe 40 can be moved in or out through the notch, and the dust cover 20 is pivotally connected in the notch so that it is used to cover the notch. A limiting ring is fixedly connected to the inner wall of the top of the outer shell 11, and the limiting ring is located below the cover 21. The inner diameter of the limiting ring is smaller than the width of the cover 21, so that the limiting ring is used to limit the dust cover 20. The inner diameter of the limiting ring is larger than the outer diameter of the hard tube 42 in the intake pipe, so that the hard tube 42 can move through the limiting ring.

[0024] See also Figure 3 The dust cover 20 includes a cover body 21, a positioning shaft 22, and a torsion spring 23. The positioning shaft 22 passes through the cover body 21 and is fixedly connected to the outer shell 11, so that the cover body 21 is movably arranged in the notch of the outer shell 11 by the positioning shaft 22. The torsion spring 23 is sleeved on the positioning shaft 22, and the end of the torsion spring 23 is fixedly connected to the cover body 21, so that when the cover body 21 is pushed and deflected by the intake pipe 40, the torsion spring 23 can be deformed. When the intake pipe 40 is received in the outer shell 11, the cover body 21 can contact the limit ring and cover the notch under the elastic deformation of the torsion spring 23.

[0025] In this embodiment, the lifting assembly 30 may include a connecting frame 31, a guide rod 32 and a screw rod 33. The middle part of the connecting frame 31 is sleeved and fixed on the lower end of the outer wall of the hard tube 42 in the air intake pipe 40, and the two ends of the connecting frame 31 are sleeved on the guide rod 32 and the screw rod 33 respectively, the connecting frame 31 and the guide rod 32 are slidably connected, and the connecting frame 31 and the screw rod 33 are threadedly connected. When the connecting frame 31 moves axially along the guide rod 32, the hard tube 42 in the air intake pipe 40 can be driven to move accordingly. The top end of the guide rod 32 is fixed on the top inner wall of the outer shell 11, the top end of the screw rod 33 passes through the outer shell 11, and the screw rod 33 is rotatably connected to the outer shell 11, so that the user can hold the screw rod 33 to rotate it, and use the threaded fit between the screw rod 33 and the connecting frame 31, and the guide limit of the guide rod 32 to the connecting frame 31, so that the connecting frame 31 can move axially along the guide rod 32. It should be understood that the lifting assembly 30 can also be implemented by using known structures that can implement lifting and moving, such as an electric push rod, a hydraulic push rod, a pneumatic push rod, and a gear rack matching structure.

[0026] In this embodiment, the air inlet pipe 40 includes a soft pipe 41 and a hard pipe 42, and the hard pipe 42 is made of a stainless steel pipe, and the soft pipe 41 is made of a rubber hose or a corrugated pipe, so that the hard pipe 42 can remain vertical when it is extended out of the outer shell 11 for use, and the soft pipe 41 can be deformed with the movement of the hard pipe 42. The adjacent ends of the soft pipe 41 and the hard pipe 42 are connected and fixed to each other, so that the inner cavities of the two are connected. The other end of the soft pipe 41 is connected and fixed to the filter 13, and the lifting assembly 30 drives the hard pipe 42 to be connected, so that the top end can move through the notch on the outer shell 11 to adjust the in or out.

[0027] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A VOC detector with a retractable probe, comprising a body (10), wherein the body (10) comprises an outer shell (11), a detector (12) and a filter (13), wherein the detector (12) and the filter (13) are both installed in the inner cavity of the outer shell (11), and the filter (13) is connected to the input end of the detector (12), characterized in that: It also includes a lifting assembly (30) and an air intake pipe (40), one end of the air intake pipe (40) being connected to and in communication with the filter (13), and the other end of the air intake pipe (40) being adjusted in position by means of the lifting assembly (30) installed in the outer shell (11), so that the end of the air intake pipe (40) can be moved into or out of the outer shell (11). The air intake pipe (40) comprises a soft pipe (41) and a hard pipe (42), the adjacent ends of the soft pipe (41) and the hard pipe (42) are connected and fixed to each other, and the inner cavities of the two are in communication, the other end of the soft pipe (41) and the filter (13) are connected and fixed to each other, and the lifting component (30) drives the connection of the hard pipe (42).

2. A VOC detector with a retractable probe according to claim 1, characterized in that: The lifting assembly (30) comprises a connecting frame (31), a guide rod (32) and a screw rod (33); the middle part of the connecting frame (31) is sleeved and fixed on the lower end of the outer wall of the hard tube (42), and the two ends of the connecting frame (31) are sleeved on the guide rod (32) and the screw rod (33) respectively; the connecting frame (31) and the guide rod (32) are slidably connected; the connecting frame (31) and the screw rod (33) are threadedly connected; the top end of the guide rod (32) is fixed on the top inner wall of the outer shell (11); the top end of the screw rod (33) passes through the outer shell (11), and the screw rod (33) is rotatably connected to the outer shell (11).

3. A VOC detector with a retractable probe according to claim 2, characterized in that: A notch is formed on the top of the outer shell (11) and faces the hard tube (42). A dust cover (20) is pivotally connected in the notch, and the dust cover (20) covers the notch on the outer shell (11).

4. A VOC detector with a retractable probe according to claim 3, characterized in that: The dust cover (20) comprises a cover body (21), a positioning shaft (22) and a torsion spring (23); the positioning shaft (22) passes through the cover body (21) and is fixedly connected to the outer shell (11), so that the cover body (21) is movably arranged in the notch of the outer shell (11) by means of the positioning shaft (22); the torsion spring (23) is sleeved on the positioning shaft (22), and the end of the torsion spring (23) is fixedly connected to the cover body (21).

5. A VOC detector with a retractable probe according to claim 4, characterized in that: A limiting ring is fixedly connected to the top inner wall of the outer shell (11), the limiting ring is located below the cover body (21), and the inner diameter of the limiting ring is smaller than the width of the cover body (21) and larger than the outer diameter of the hard tube (42).

6. A VOC detector with a retractable probe according to any one of claims 1 to 5, characterized in that: The hard tube (42) is configured as a stainless steel tube, and the soft tube (41) is configured as a rubber hose or a corrugated tube.

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