Space environment detector for limited space operation

Abstract

The utility model relates to the technical field of limited space operation, and particularly discloses a space environment detector for limited space operation, which comprises a detector main body, a plurality of control keys arranged at the top of the detector main body, a display screen arranged in the detector main body, and an alarm green light arranged at the top of the detector main body. The top of the detector body is provided with an alarm red light. The interior of the detector body is fixedly connected with an air pump. The output end of the air pump is fixedly connected with a connecting cylinder. The exterior of the connecting cylinder is fixedly connected with a first sealing ring. The interior of the connecting cylinder is slidably connected with an insertion cylinder. When the gas sampling device is used, the arc-shaped clamping plates are matched with the clamping grooves to be pressed and clamped with the first sealing ring and the second sealing ring, and then the arc-shaped clamping plates are fastened outside the two arc-shaped clamping plates through the reinforcing assemblies, so that the connecting cylinder and the inserting cylinder are tightly attached, the sealing performance of the gas sampling channel is further enhanced, and the stability and the accuracy in the sampling process are ensured.

Description

Technical Field

[0001] This utility model relates to the field of confined space operation technology, specifically a space environment detector for confined space operations. Background Technology

[0002] With the continuous development of the economy, opportunities for confined space operations are gradually increasing in various industries. Confined space refers to a closed or partially closed space with narrow and limited entrances and exits, which is not designed as a fixed workplace, has poor natural ventilation, and is prone to the accumulation of toxic, harmful, flammable and explosive substances or insufficient oxygen content. Confined space operations refer to work activities carried out by workers entering a confined space. Confined space work sites generally contain gases such as hydrogen sulfide, carbon monoxide, carbon dioxide, ammonia, methane (marsh gas), and hydrogen cyanide, among which asphyxiating gases, mainly hydrogen sulfide and carbon monoxide, are particularly prominent.

[0003] Then, the ambient gas inside the confined space is detected by a space environment detector. First, the detector and the detection tube need to be connected, and then the detection tube is inserted into the space to be detected.

[0004] However, during the testing process, the telescopic tube may shake when it is extended into the testing space, which may cause gaps at the connection between the detector and the telescopic tube, resulting in poor sealing. This will prevent the gas to be tested from effectively entering the interior of the detector, causing the test results to be inaccurate. To address this, we propose a confined space environment detector for confined space operations. Utility Model Content

[0005] The purpose of this invention is to provide a space environment detector for confined space operations, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a space environment detector for confined space operations, comprising a detector body, multiple control buttons mounted on the top of the detector body, a display screen mounted inside the detector body, an alarm green light mounted on the top of the detector body, an alarm red light mounted on the top of the detector body, an air pump fixedly connected inside the detector body, a connecting cylinder fixedly connected to the output end of the air pump, a sealing ring I fixedly connected to the outside of the connecting cylinder, an insertion cylinder slidably connected inside the connecting cylinder, a sealing ring II fixedly connected to the outside of the insertion cylinder, a connecting pipe fixedly connected to the outside of the insertion cylinder, two arc-shaped clamps mounted outside the sealing ring I, a telescopic tube fixedly connected to the outside of the connecting pipe, and an external tube fixedly connected to the outside of the telescopic tube.

[0007] The arc-shaped clamp has a slot inside, and a lever is fixedly connected to the outside of the slot. The lever has a threaded groove on the outside.

[0008] Among them, the two arc-shaped clamps are externally threaded with reinforcing components, and the reinforcing components are externally fixed with pulling blocks.

[0009] The external tube is fixedly connected to a filter element, and the filter element has multiple filter holes on its exterior.

[0010] Among them, the outer side of sealing ring one is in contact with the outer side of sealing ring two, and the outer side of the insertion cylinder is slidably connected to the inside of sealing ring one.

[0011] The inside of the slot is in contact with the outside of the first sealing ring, and the inside of the slot is in contact with the outside of the second sealing ring.

[0012] The green alarm light and the detector body are electrically connected. The red alarm light and the detector body are also electrically connected.

[0013] This utility model has at least the following beneficial effects:

[0014] In use, the arc-shaped clamping plate engages with the slot and sealing rings one and two, and is then secured to the outside of the two arc-shaped clamping plates by a reinforcing component. This ensures a tight fit between the connecting cylinder and the insertion cylinder, further enhancing the sealing of the gas sampling channel and guaranteeing the stability and accuracy of the sampling process. Simultaneously, the air pump generates suction after startup, drawing air samples from the confined space through the connecting cylinder and the insertion cylinder. The sealing ring one at the connection between the connecting cylinder and the insertion cylinder, and the sealing ring two at the contact point between the insertion cylinder and the external environment, effectively prevent gas leakage and the mixing of outside air during the gas extraction process. This ensures that the collected gas samples are real and accurate from within the confined space, providing a reliable data foundation for subsequent detection and analysis. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the telescopic tube structure of this utility model;

[0017] Figure 3 This is an exploded view of the insertion tube structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the filter structure of this utility model;

[0019] In the diagram: 1. Detector body; 2. Control buttons; 3. Display screen; 4. Alarm green light; 401. Alarm red light; 5. Air pump; 501. Connecting cylinder; 502. Sealing ring one; 6. Insertion cylinder; 601. Sealing ring two; 602. Connecting pipe; 7. Arc-shaped clamp; 701. Slot; 702. Paddle; 703. Threaded groove; 8. Reinforcing component; 801. Pulling block; 9. Telescopic tube; 901. External tube; 902. Filter plate; 903. Filter hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Please see Figures 1 to 4 This utility model provides a technical solution: a confined space environment detector, comprising a detector body 1, multiple control buttons 2 mounted on the top of the detector body 1, a display screen 3 installed inside the detector body 1, an alarm green light 4 mounted on the top of the detector body 1, an alarm red light 401 mounted on the top of the detector body 1, an air pump 5 fixedly connected inside the detector body 1, a connecting cylinder 501 fixedly connected to the output end of the air pump 5, a sealing ring 502 fixedly connected to the outside of the connecting cylinder 501, an insertion cylinder 6 slidably connected inside the connecting cylinder 501, and an insertion cylinder 6 externally connected to the outside of the insertion cylinder 6. A second sealing ring 601 is fixedly connected, and a connecting pipe 602 is fixedly connected to the outside of the insertion cylinder 6. Two arc-shaped clamps 7 are installed on the outside of the first sealing ring 502. A telescopic pipe 9 is fixedly connected to the outside of the connecting pipe 602, and an external pipe 901 is fixedly connected to the outside of the telescopic pipe 9. The slots 701 on the arc-shaped clamps 7 are pressed and engaged with the second sealing ring 601 and the first sealing ring 502. The operator operates the reinforcing component 8 by pulling the pulling block 801 to fasten the reinforcing component 8 to the outside of the two arc-shaped clamps 7, so that the connecting cylinder 501 and the insertion cylinder 6 fit tightly together, enhancing the sealing of the connection.

[0023] The arc-shaped clamp 7 has a slot 701 inside, and a lever 702 is fixedly connected to the outside of the slot 701. The lever 702 has a threaded groove 703 on its outside. The two arc-shaped clamps 7 are threadedly connected to a reinforcing component 8. A pulling block 801 is fixedly connected to the outside of the reinforcing component 8. A filter 902 is fixedly connected to the outside of the external tube 901. The filter 902 has multiple filter holes 903 on its outside. The filter holes 903 on the filter 902 can filter the gas sample entering the detector body 1 and remove any impurities such as dust and hair. If these impurities enter the inside of the detector body 1, they may damage the detection element and affect the accuracy of the detection results. Through the filtering effect of the filter 902, the detection element inside the detector body 1 can be protected, the service life of the detector can be extended, and the reliability of the detection results can be ensured.

[0024] The outer side of sealing ring 502 contacts the outer side of sealing ring 601. The outer side of insertion cylinder 6 is slidably connected to the inside of sealing ring 502. The inside of slot 701 contacts the outer side of sealing ring 502, and the inside of slot 701 contacts the outer side of sealing ring 601. Alarm green light 4 is electrically connected to detector body 1, and alarm red light 401 is electrically connected to detector body 1. Alarm green light 4 and alarm red light 401 are installed on the top of detector body 1. Both alarm green light 4 and alarm red light 401 are electrically connected to detector body 1. Alarm green light 4 and alarm red light 401 are used to indicate whether environmental parameters are within the normal range. When environmental parameters are within the safe range, alarm green light 4 lights up. Once environmental parameters exceed the preset safety threshold, alarm red light 401 lights up immediately and may trigger an alarm device to remind operators of potential dangers.

[0025] The working principle of this utility model is as follows: Control buttons 2 are installed on the surface of the detector body 1, facilitating operators to set the detector's functions and start the detection process. The display screen 3 is used to display the detected environmental parameter values ​​in real time, intuitively presenting the environmental conditions within the space. After the air pump 5 is started, it generates suction, drawing air samples from the confined space through the connecting tube 501. The connecting tube 501 is connected to the insertion tube 6. A sealing ring 502 is installed at the connection between the connecting tube 501 and the insertion tube 6 to ensure that no air leakage occurs during gas extraction, guaranteeing the accuracy of sampling. The insertion tube 6 is used to penetrate deep into the confined space for gas sampling. A second sealing ring 601 is installed at the part of the insertion tube 6 that contacts the external environment, further preventing outside air from mixing into the sampling airflow and ensuring the accuracy of the sample collection. The sample obtained is a real gas sample from a confined space. The collected gas sample is transported to the detection element inside the detector body 1 through the connecting tube 602 for analysis and detection. Then, the alarm green light 4 and the alarm red light 401 are used to indicate whether the environmental parameters are within the normal range. When the environmental parameters are within the safe range, the alarm green light 4 lights up; once the environmental parameters exceed the preset safety threshold, the alarm red light 401 lights up immediately, and may trigger the alarm device to remind the operator to pay attention to potential dangers. The arc-shaped clamp 7 is provided with a slot 701. The arc-shaped clamp 7 and the slot 701 can press and engage with the sealing ring 601 and the sealing ring 502. Then, it is fastened to the outside of the two arc-shaped clamps 7 by the reinforcing component 8, so that the connecting cylinder 501 and the insertion cylinder 6 fit tightly together.

[0026] Example 2

[0027] Please see Figure 4In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that the filter 902 is installed outside the external tube 901. The filter 902 is provided with filter holes 903, which can filter the gas sample entering the detector body 1, remove any possible impurity particles, and protect the detection elements inside the detector body 1.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A space environmental detector for use in a confined space operation, comprising a detector main body (1), characterized by: The top of the detector body (1) is provided with a plurality of control buttons (2), the inside of the detector body (1) is provided with a display screen (3), the top of the detector body (1) is provided with an alarm green light (4), the top of the detector body (1) is provided with an alarm red light (401), the inside of the detector body (1) is fixedly connected with an air pump (5), the output end of the air pump (5) is fixedly connected with a connecting barrel (501), the outside of the connecting barrel (501) is fixedly connected with a sealing ring one (502), the inside of the connecting barrel (501) is slidably connected with an insertion barrel (6), the outside of the insertion barrel (6) is fixedly connected with a sealing ring two (601), the outside of the insertion barrel (6) is fixedly connected with a connecting pipe (602), the outside of the sealing ring one (502) is provided with two arc clamping plates (7), the outside of the connecting pipe (602) is fixedly connected with a telescopic pipe (9), the outside of the telescopic pipe (9) is fixedly connected with an external pipe (901).

2. The space environmental detector for use in a limited space according to claim 1, characterized by: The inside of the arc clamping plate (7) is provided with a clamping groove (701), the outside of the clamping groove (701) is fixedly connected with a pulling piece (702), and the outside of the pulling piece (702) is provided with a threaded groove (703).

3. The space environmental detector for use in a limited space according to claim 1, characterized by: The outside of the two arc clamping plates (7) is threadedly connected with a reinforcing assembly (8), and the outside of the reinforcing assembly (8) is fixedly connected with a pulling block (801).

4. The space environmental detector for use in a limited space according to claim 1, characterized by: The outside of the external pipe (901) is fixedly connected with a filter piece (902), and the outside of the filter piece (902) is provided with a plurality of filter holes (903).

5. The space environmental detector for use in a limited space according to claim 1, characterized by: The outside of the sealing ring one (502) is in contact with the outside of the sealing ring two (601), and the outside of the insertion barrel (6) is slidably connected in the inside of the sealing ring one (502).

6. The space environmental detector for use in a limited space according to claim 2, characterized by: The inside of the clamping groove (701) is in contact with the outside of the sealing ring one (502), and the inside of the clamping groove (701) is in contact with the outside of the sealing ring two (601).

7. The space environmental detector for limited space work according to claim 1, characterized by: The alarm green light (4) and the detector body (1) are electrically connected, and the alarm red light (401) and the detector body (1) are electrically connected.

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