Four-in-one intelligent handheld terminal for gas detection

Abstract

The utility model relates to the technical field of gas detection, in particular to a four-in-one intelligent handheld terminal for gas detection, which comprises a casing, a display screen and a control panel, one side of the casing is provided with a probe groove, the inner side of the probe groove is provided with a probe, the probe is covered with a probe cap, and the probe cap is provided with an air hole; a probe groove is formed in the machine shell, a conversion frame corresponding to the probe groove is arranged on the machine shell, the conversion frame is in an 8 shape, a protective cover and a remote detection cover are arranged on the conversion frame, a telescopic pipe is arranged on one side of the remote detection cover, the remote detection cover comprises a cavity, an air film, an air inlet valve and an exhaust valve, and the air inlet valve and the exhaust valve are embedded in the two sides of the cavity respectively. When gas detection is carried out on a detection point which is inconvenient to approach, gas collection can be remotely completed through the gas film pump and the telescopic pipe, the gas exchange efficiency is improved, the detection waiting time is shortened, meanwhile, it is ensured that the probe carries out detection in a closed environment, external interference is avoided, and the detection reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to a four-in-one gas detection intelligent handheld terminal. Background Art

[0002] The four-in-one gas detector can detect oxygen, hydrogen sulfide, carbon monoxide and combustible gas at the same time, among which hydrogen sulfide and carbon monoxide gases can be matched with other gases according to the detection requirements of the site. In the prior art, the four-in-one gas detector still has some disadvantages. When using the traditional four-in-one gas detector, the body needs to be close to the gas to be detected, because the probe is generally protected by a probe cap and is not directly exposed to the air. Therefore, there is a lag in the flow of gas near the probe, and it takes a certain amount of time to wait for the gas to flow evenly and replace the air near the probe. The probe begins to contact the gas to be detected before the detection process can be completed. The efficiency is low and the reliability of gas concentration detection is affected. At the same time, the handheld device needs to be close to the point to be detected, which is inconvenient to use. If the detection location is dangerous, this detection method also has safety hazards. Utility Model Content

[0003] The utility model aims to solve the shortcomings of low detection efficiency and potential safety hazards in the use process of the existing four-in-one gas detector, and proposes a four-in-one gas detection intelligent handheld terminal.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A four-in-one gas detection intelligent handheld terminal comprises a casing, a display screen and a control panel, wherein a probe slot is provided on one side of the casing, a probe is provided inside the probe slot, a probe cap is buckled on the probe cover, and an air hole is opened on the probe cap; a conversion frame corresponding to the probe slot is provided on the casing, the conversion frame is in an 8-shape, a protective cover and a remote detection cover are provided on the conversion frame, a telescopic tube is provided on one side of the remote detection cover, the remote detection cover comprises a cavity, an air film, an air inlet valve and an exhaust valve, and the air inlet valve and the exhaust valve are respectively embedded on both sides of the cavity.

[0006] Preferably, the probe is provided in plurality, and an oxygen sensor, a hydrogen sulfide sensor, a carbon monoxide sensor and a combustible gas sensor are respectively provided inside, and the probe cap is detachably connected to the probe slot.

[0007] Preferably, the middle portion of the conversion frame is rotatably connected to the housing, a round hole adapted to the probe slot is provided on the conversion frame, and the protective cover and the remote detection cover are both arranged corresponding to the probe slot.

[0008] Preferably, the protective cover is detachably connected to the conversion frame, the remote detection cover is rotatably connected to the conversion frame, and one end of the telescopic tube is rotatably connected to the remote detection cover.

[0009] Preferably, a connecting seat is provided at one end of the telescopic tube, the connecting seat is connected to the intake valve, and a jet nozzle is provided on one side of the exhaust valve.

[0010] Preferably, a gas sampling chamber is provided between the cavity and the air film. The telescopic tube communicates with the gas sampling chamber through the intake valve, and the jet nozzle communicates with the gas sampling chamber through the exhaust valve.

[0011] The beneficial effects of the present utility model are as follows:

[0012] Compared with the prior art, a conversion frame is provided on the casing of the present utility model, which can switch the protective cover and the remote detection cover to realize two detection modes. During traditional detection, the protective cover is used to protect the probe. When gas detection needs to be performed on a detection point that is not easily accessible, air flow can be pumped through the air film, and the telescopic tube can complete gas collection over a long distance, improving the ventilation efficiency, reducing the detection waiting time, and at the same time ensuring that the probe is detected in a closed environment, avoiding external interference, and improving the detection reliability. Description of the Drawings

[0013] Figure 1 It is a three-dimensional overall assembly structure schematic diagram of a four-in-one gas detection intelligent handheld terminal proposed by the present utility model;

[0014] Figure 2 It is a three-dimensional partial sectional structure schematic diagram of a four-in-one gas detection intelligent handheld terminal proposed by the present utility model;

[0015] Figure 3 It is a sectional structure schematic diagram of the remote detection cover of a four-in-one gas detection intelligent handheld terminal proposed by the present utility model.

[0016] Marking description: 1. Casing; 2. Display screen; 3. Control board; 4. Protective cover; 5. Conversion frame; 6. Remote detection cover; 61. Cavity; 62. Air film; 63. Handle; 64. Intake valve; 65. Exhaust valve; 66. Jet nozzle; 7. Telescopic tube; 71. Connecting seat; 8. Probe slot; 81. Probe; 82. Probe cap. Detailed Embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restricts the present invention and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0018] Referring to Figures 1-3 , an intelligent handheld terminal for four-in-one gas detection, includes a housing 1, a display screen 2 and a control board 3. On one side of the housing 1, there is a probe slot 8. Inside the probe slot 8, there is a probe 81. There are multiple probes 81, and an oxygen sensor, a hydrogen sulfide sensor, a carbon monoxide sensor and a combustible gas sensor are respectively arranged inside to detect the type and concentration of gas, improving the practicability and convenience of use of the device. A probe cap 82 is buckled on the probe 81 to protect the probe 81. The probe cap 82 is detachably connected to the probe slot 8. Air holes are opened on the probe cap 82 to facilitate the flow of gas and ensure the reliability of detection;

[0019] Furthermore, a conversion frame 5 corresponding to the probe slot 8 is arranged on the housing 1. A round hole adapted to the probe slot 8 is opened on the conversion frame 5. The conversion frame 5 is in an 8-shaped configuration. The middle part of the conversion frame 5 is rotatably connected to the housing 1. A protective cover 4 and a remote detection cover 6 are arranged on the conversion frame 5. When the conversion frame 5 rotates, the positions of the protective cover 4 and the remote detection cover 6 are switched, cooperating with the probe 81 in the probe slot 8 to realize different detection modes. The protective cover 4 and the remote detection cover 6 are both arranged corresponding to the probe slot 8 to ensure the sealing effect therebetween and avoid the influence of air flow on the detection reliability. The protective cover 4 is detachably connected to the conversion frame 5 for easy disassembly and maintenance;

[0020] Moreover, a telescopic tube 7 is arranged on one side of the remote detection cover 6. The remote detection cover 6 is rotatably connected to the conversion frame 5 to facilitate adjusting the direction of the telescopic tube 7. One end of the telescopic tube 7 is rotatably connected to the remote detection cover 6, improving the operation convenience;

[0021] It should be noted that the remote detection cover 6 includes a cavity 61, a gas film 62, an intake valve 64 and an exhaust valve 65. The intake valve 64 and the exhaust valve 65 are respectively embedded on both sides of the cavity 61. One end of the telescopic tube 7 is provided with a connecting seat 71. The connecting seat 71 is rotatably connected to the intake valve 64. A jet nozzle 66 is arranged on one side of the exhaust valve 65. The air holes of the jet nozzle 66 are inclined. A gas sampling chamber is arranged between the cavity 61 and the gas film 62. The telescopic tube 7 is communicated with the gas sampling chamber through the intake valve 64, and the jet nozzle 66 is communicated with the gas sampling chamber through the exhaust valve 65 to realize the one-way inlet and outlet of gas;

[0022] In addition, as needed, the air film 62 can be made of an elastic metal sheet or a rubber sleeve. After being subjected to an external force, the volume of the air extraction chamber is changed, thereby pumping gas. When using the rubber sleeve air film 62, a return spring needs to be arranged inside, and a handle 63 is arranged on the air film 62 to improve the operation comfort.

[0023] In this embodiment, when performing gas detection under normal conditions, the protective cover 4 is selected to engage with the probe slot 8. The protective cover 4 is provided with a gas nozzle for gas exchange, and the gas is detected by the probe 81. The oxygen sensor, hydrogen sulfide sensor, carbon monoxide sensor and combustible gas sensor determine the gas type and concentration.

[0024] When the detection space is narrow, there is a certain danger or the distance is far away, the detection personnel cannot approach with the equipment in hand. The conversion frame 5 can be rotated to switch to the remote detection cover 6, which engages with the probe slot 8. At the same time, the telescopic tube 7 is stretched, and the direction of the telescopic tube 7 is adjusted to contact the point to be detected, improving the detection safety. By pressing the air film 62, the volume of the air extraction chamber is changed, and in cooperation with the intake valve 64 and the exhaust valve 65, two one-way valves, the one-way pumping of gas is completed, replacing the air inside the air extraction chamber with the gas to be detected, ensuring that the probe 81 can complete gas detection in a closed environment and avoiding the influence of the environment on the gas.

[0025] After the detection is completed, the telescopic tube 7 is moved away from the point to be detected, and the air film 62 is repeatedly pressed to replace the detected gas. Re-detection can be carried out as needed, or the next group of detections can be carried out.

[0026] In addition, since a jet nozzle 66 is provided on one side of the exhaust valve 65 and the air holes of the jet nozzle 66 are inclined, during maintenance, the protective cover 4 is engaged with the probe slot 8, the protective cover 4 is removed to expose the probe slot 8, the cavity 61 is rotated, the jet nozzle 66 is aligned with the probe slot 8, and the air film 62 is pressed to pump air, so that the probe 81 in the probe slot 8 can be blown by the air flow to complete dust cleaning or dehumidification.

[0027] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] Unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that for the sake of convenience in description, the dimensions of the various parts shown in the drawings are not drawn according to actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

Claims

1. A four-in-one gas detection intelligent handheld terminal, comprising a housing, a display screen and a control panel, characterized in that: A probe groove is provided on one side of the housing, a probe is provided inside the probe groove, a probe cap is buckled on the probe, and an air hole is opened on the probe cap; The casing is provided with a conversion frame corresponding to the probe slot, the conversion frame is in the shape of an 8, the conversion frame is provided with a protective cover and a remote detection cover, a telescopic tube is provided on one side of the remote detection cover, the remote detection cover includes a cavity, an air film, an air intake valve and an exhaust valve, and the air intake valve and the exhaust valve are respectively embedded in both sides of the cavity.

2. According to claim 1, a four-in-one gas detection intelligent handheld terminal is characterized in that: There are multiple probes, each of which is provided with an oxygen sensor, a hydrogen sulfide sensor, a carbon monoxide sensor and a combustible gas sensor. The probe cap is detachably connected to the probe slot.

3. The four-in-one gas detection intelligent handheld terminal according to claim 1, characterized in that: The middle part of the conversion frame is rotatably connected with the casing, a round hole adapted to the probe slot is opened on the conversion frame, and the protective cover and the remote detection cover are both arranged corresponding to the probe slot.

4. The four-in-one gas detection intelligent handheld terminal according to claim 3, characterized in that: The protective cover is detachably connected to the conversion frame, the remote detection cover is rotatably connected to the conversion frame, and one end of the telescopic tube is rotatably connected to the remote detection cover.

5. The four-in-one gas detection intelligent handheld terminal according to claim 4, characterized in that: A connecting seat is provided at one end of the telescopic tube, the connecting seat is connected to the air inlet valve, and an air jet nozzle is provided at one side of the exhaust valve.

6. The four-in-one gas detection intelligent handheld terminal according to claim 5, characterized in that: An air collection chamber is arranged between the cavity and the air film, the telescopic tube is communicated with the air collection chamber through an air inlet valve, and the air jet nozzle is communicated with the air collection chamber through an air exhaust valve.

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