Gas detector with fast-assembly gas inlet structure

Abstract

The utility model relates to the technical field of gas detectors, and discloses a gas detector with a quick-assembly gas inlet structure, which comprises a shell, and a quick-assembly gas inlet component is arranged at the top of the shell and is used for butting a flexible hose; the quick-mounting air inlet assembly comprises a quick-mounting connector mounted on the shell, a nut for locking the quick-mounting connector on the shell, and a connecting plug matched with the quick-mounting connector for sealing and inserting; when the plug connector and the quick connector are disassembled in a matched mode, a lifting plate on the pressing side pushing piece is pressed, side pushing rods on the pressing side pushing piece translate outwards under the limiting and guiding effects of guiding channels on the two sides of the lifting plate, and then the plug connector is ejected out, so that the force used for manually pulling out the plug connector is relieved, the operation difficulty is lowered, and the plug connector is convenient to disassemble and assemble. And the use convenience is improved, and the operation efficiency is improved for the working scene of frequent connection and disassembly of the flexible hose.

Description

Technical Field

[0001] This utility model belongs to the technical field of gas detectors, specifically relating to a gas detector with a quick-installation air inlet structure. Background Technology

[0002] Gas detection is crucial in many fields, including industrial production, environmental monitoring, and safety inspection. For example, in the petrochemical industry, it is necessary to monitor the concentration of combustible and toxic gases in real time to prevent accidents such as explosions and poisoning. In environmental monitoring, it is necessary to detect the content of various pollutant gases in the air to provide data support for environmental protection.

[0003] Existing gas detectors have played a role in meeting these detection needs, but with the increasing complexity and diversification of practical applications, higher demands are being placed on the performance and functionality of gas detectors. The connection between the inlet and flexible hose of traditional gas detectors is often complex and difficult to insert and remove. In practice, manually removing the connector requires considerable force, and improper operation can easily lead to damage to the connector or gas leakage, affecting the normal progress of detection work and increasing operating costs and safety risks.

[0004] In view of this, we propose a gas detector with a quick-release air inlet structure that is easy to remove. Utility Model Content

[0005] The present invention aims to solve the technical problem in the prior art that requires considerable force and is inconvenient to operate when manually removing the air intake pipe interface.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A gas detector with a quick-connect air inlet structure includes a housing, and a quick-connect air inlet assembly is provided on the top of the housing for connecting to a flexible hose.

[0008] The quick-connect air intake assembly includes a quick-connect connector mounted on the housing, a nut that locks the quick-connect connector onto the housing, and a connector that fits into the quick-connect connector for a sealing connection.

[0009] The quick-connect connector is equipped with a downward pusher. When the plug and quick-connect connector are disassembled, the lifting plate on the downward pusher is pressed. The side push rod on the downward pusher moves outward under the limiting and guiding action of the guide channels on both sides of the lifting plate, thereby pushing out the plug and reducing the force required to manually remove the plug.

[0010] Preferably, the housing consists of a front shell and a rear shell that are sealed together and then fixed together with screws. A circuit board and a battery are installed inside the front shell, and an air pump and a gas detection sensor module that are electrically connected to the circuit board are installed inside the rear shell. The air pump's inlet end is connected to a quick-release air inlet assembly through an air inlet pipe A, and its outlet end is connected to the gas detection sensor module through an air inlet pipe B. The gas detection sensor module's outlet end is connected to the outlet through an outlet pipe.

[0011] Preferably, both the air outlet and the quick-release air inlet assembly are installed at the top of the rear housing, which is also equipped with a temperature and humidity detection head.

[0012] As a preferred embodiment, the quick-connect fitting includes an external threaded part inserted into the rear housing, a connecting nozzle A that communicates with the end of the external threaded part and is fitted with an air intake pipe A for sealing, a limiting sleeve that communicates with the front end of the external threaded part and is limited above the rear housing, a guide sleeve fixed to the front end of the limiting sleeve, and a cover plate fixed to the outer side of the guide sleeve by screws.

[0013] The guide sleeve is provided with vertical guide grooves on both sides to guide the lifting plate and horizontal guide grooves to guide the side push rod. The guide rods at both ends of the side push rod extend into the guide channel.

[0014] Preferably, the top of the lifting plate is provided with a pressing block, which is fixedly connected to the limiting sleeve of the guide sleeve by a spring.

[0015] Preferably, the nut is screwed into the external thread to lock the quick-connect fitting onto the rear housing.

[0016] Preferably, the connector includes a plug-in nozzle B that is plugged into the flexible hose and a sealing tube that is connected to and sealed inside the guide sleeve. The outer side of the sealing tube is fitted with several sealing rings arranged at equal intervals, and a top plate is provided on the outer side of the connection between the sealing tube and the plug-in nozzle B.

[0017] Preferably, the integrated display module and button module on the circuit board are displayed and operated through the front cover.

[0018] Preferably, the back cover has a back clip on the back and the bottom of the front cover has a charging port for charging the battery.

[0019] Compared with the prior art, the technical effects and advantages of this utility model are as follows: The gas detector with the quick-connect air inlet structure is equipped with a quick-connect air inlet component. The quick-connect connector is provided with a downward pusher. When disassembling the connector, pressing the lifting plate causes the pusher rod to move outward under the guidance of the guide channel, which greatly reduces the force required to manually remove the connector, reduces the difficulty of operation, and improves the ease of use. For work scenarios involving frequent connection and disassembly of flexible hoses, the connector disassembly operation can be completed in a short time. Compared with the traditional tight-fitting method, it saves time and improves operational efficiency.

[0020] During normal use, the plug and quick-connect fitting fit tightly, with a sealing ring ensuring a tight seal. When disassembling, the quick-connect mechanism smoothly pushes out the plug, preventing damage to the connection structure that could affect subsequent connections, and avoiding gas leakage, thus ensuring the reliability and stability of the gas detection system. Spring cushioning and a side push rod guide ensure a smooth and safe plug removal process, reducing the risk of equipment damage due to improper operation and extending the equipment's lifespan. Attached Figure Description

[0021] Figure 1 This is a first-view diagram of the present invention;

[0022] Figure 2 This is a second-view diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the quick-install air inlet assembly of this utility model;

[0024] Figure 4 This is an exploded view of the quick-connect coupling of this utility model;

[0025] Figure 5 This is a schematic diagram of the connector structure of this utility model.

[0026] In the diagram: 1. Rear shell; 2. Quick-release air inlet assembly; 3. Quick-release connector; 31. External thread; 32. Connecting nozzle A; 33. Limiting sleeve; 34. Guide sleeve; 35. Cover plate; 36. Spring; 37. Vertical guide groove; 38. Horizontal guide groove; 39. Pressing block; 4. Nut; 5. Plug; 51. Plug nozzle B; 52. Sealing tube; 53. Sealing ring; 54. Top plate; 6. Downward pusher; 7. Lifting plate; 8. Side push rod; 9. Guide channel; 10. Front shell; 11. Air outlet; 12. Temperature and humidity detection head; 13. Back clip; 14. Charging port; 15. Guide rod. Detailed Implementation

[0027] 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.

[0028] The following combination Figures 1 to 5 This application will be described in further detail.

[0029] This application discloses a gas detector with a quick-connect air inlet structure, including a housing. The top of the housing is provided with a quick-connect air inlet assembly 2 for connecting to a flexible hose. The housing is sealed and fastened together by screws by a front shell 10 and a rear shell 1. A circuit board and a battery are installed inside the front shell 10. An air pump and a gas detection sensor module electrically connected to the circuit board are installed inside the rear shell 1. The air pump's air inlet end is connected to the quick-connect air inlet assembly 2 through an air inlet pipe A, and its air outlet end is connected to the gas detection sensor module through an air inlet pipe B. The gas detection sensor module's air outlet end is connected to the air outlet 11 through an air outlet pipe.

[0030] The air outlet 11 and the quick-release air inlet assembly 2 are both mounted on the top of the rear shell 1, and the top of the rear shell 1 is also equipped with a temperature and humidity sensor 12. The integrated display module and button module on the circuit board are displayed and operated via the front shell 10. A back clip 13 is provided on the back of the rear shell 1, and a charging port 14 for charging the battery is provided at the bottom of the front shell 10.

[0031] The temperature and humidity sensor 12 is connected to the circuit board. The advantage is that it can detect the temperature and humidity values ​​of the environment in real time and transmit this data to the data processing module on the circuit board. The data processing module processes this temperature and humidity data and then displays it through the display module, allowing users to easily understand the temperature and humidity conditions at the testing site.

[0032] The gas detection sensor module adopts a design that can be flexibly configured with multiple gas sensors, supporting up to 4 types of gas sensors, and can detect a variety of gases such as carbon dioxide, combustible gas, hydrogen sulfide, carbon monoxide, oxygen, toxic gases, benzene series compounds, organochlorides, petroleum hydrocarbons, and TVOC.

[0033] The display module is equipped with a 2.4-inch full-view IPS industrial-grade color screen with a resolution of 320x240. It can clearly display the concentration value of the detected gas, date and time, temperature (optional), humidity (optional), unit and other information. It supports 4-channel display and has multiple display modes such as 2-in-1 interface, 3-in-1 interface, 4-in-1 interface and single gas detection interface.

[0034] The data processing module on the circuit board adopts the latest semiconductor nanotechnology ultra-low power 32-bit microprocessor and 24-bit ADC data acquisition chip, which has high-precision data acquisition and processing capabilities, and can view and export historical data. It also has the function of displaying historical data curves and real-time curves.

[0035] The air pump can operate in a slightly negative pressure environment, and the reasonable air chamber design ensures that the sensor is not affected by pressure, thus ensuring the accuracy of the detection.

[0036] The quick-connect air inlet assembly 2 includes a quick-connect connector 3 mounted on the housing, a nut 4 that locks the quick-connect connector 3 onto the housing, and a plug connector 5 that seals and inserts with the quick-connect connector 3.

[0037] The quick-connect connector 3 is equipped with a downward pusher 6. When the plug connector 5 is disassembled from the quick-connect connector 3, the lifting plate 7 on the downward pusher 6 is pressed. The side pusher 8 on the downward pusher 6 moves outward under the limiting and guiding action of the guide channels 9 on both sides of the lifting plate 7, thereby pushing out the plug connector 5 to reduce the force required to manually pull out the plug connector 5.

[0038] The quick-connector 3 includes an external threaded part 31 inserted into the rear housing 1, a connecting nozzle A 32 connected to the end of the external threaded part 31 and fitted with an air intake pipe A for sealing, a limiting sleeve 33 connected to the front end of the external threaded part 31 and limited above the rear housing 1, a guide sleeve 34 fixed to the front end of the limiting sleeve 33, and a cover plate 35 fixed to the outer side of the guide sleeve 34 by screws.

[0039] The guide sleeve 34 has vertical guide grooves 37 on both sides to guide the lifting plate 7 in lifting and lowering, and horizontal guide grooves 38 to guide the side push rod 8 in pushing and lowering. The guide rods 15 at both ends of the side push rod 8 extend into the guide channel 9. The top of the lifting plate 7 is provided with a pressing block 39, which is fixedly connected to the limiting sleeve 33 of the guide sleeve 34 by a spring 36. The nut 4 is screwed into the external thread part 31 to lock the quick-connect connector 3 onto the rear shell 1.

[0040] The connector 5 includes a connector B51 that connects to the flexible hose and a sealing tube 52 that is connected to and sealed within the guide sleeve 34. A plurality of sealing rings 53 arranged at equal intervals are fitted around the outer side of the sealing tube 52. A top plate 54 is provided on the outer side of the connection between the sealing tube 52 and the connector B51. When the connector 5 is inserted into the quick-connect connector 3, the top plate abuts against the surface of the cover plate 35.

[0041] When the plug 5 is pulled out relative to the quick-connect connector 3, the pressing block 39 is pressed, the spring 36 is compressed, the lifting plate 7 moves down, the side push rod 8 moves outward, and then pushes the top plate 54 outward and away from the cover plate 35, thereby pushing the plug 5 out of the quick-connect connector 3.

[0042] In practical use, when it is necessary to separate the connector 5 from the quick-connect connector 3, without this quick-connect structure, manually pulling out the connector 5 may require a lot of force, and improper operation may also lead to problems such as damage to the connector 5 or gas leakage.

[0043] This quick-release air inlet structure allows the connector 5 to be easily ejected by pressing down the lifting plate 7 on the side pusher 6, utilizing the elasticity of the spring 36 and the translational movement of the side push rod 8 within the guide channel 9. This design significantly reduces the force required to manually remove the connector 5, lowers the operational difficulty, and improves ease of use.

[0044] For work scenarios that frequently require connecting and disconnecting flexible hoses, such as quickly changing testing positions or adjusting testing equipment at different testing locations, the ability to quickly and easily disconnect the connector 5 is crucial. This quick-connect structure allows for the disassembly of the connector 5 in a short time, significantly improving operational efficiency and saving time costs compared to traditional tight-fitting methods that require more time and effort to disassemble.

[0045] During normal use, the plug 5 and quick-connect connector 3 fit tightly together, and the sealing of the gas detection system is ensured by sealing measures such as the sealing ring 53. When disassembly is required, this quick-connect structure, composed of the pressing block 39, spring 36, and side push rod 8, can smoothly push out the plug 5. This prevents damage to the connection structure between the plug 5 and quick-connect connector 3 due to excessive force, which could affect subsequent reconnection, and also ensures that gas leakage will not occur due to improper operation during disassembly, thus guaranteeing the reliability and stability of the gas detection system.

[0046] Traditional plugging and unplugging methods may damage the connector 5 or quick-connect connector 3 due to uneven or excessive force, increasing equipment maintenance costs. This quick-connect air inlet structure, through ingenious mechanical design, utilizes the buffering effect of spring 36 and the guiding effect of side push rod 8 to make the plug-in 5 removal process smoother and safer, reducing the risk of equipment damage due to improper operation and extending the service life of the equipment.

[0047] This gas detector with a quick-connect air inlet structure uses a gas detection sensor module connected to a flexible hose via the quick-connect air inlet assembly 2 to detect gases in the environment. The detected gas concentration signal is transmitted to a data processing module, which analyzes and processes the data, then displays the relevant information on a display module. The module also allows for data storage and curve display. An air pump module is responsible for drawing in the gas to ensure smooth detection.

[0048] Capable of simultaneously detecting multiple gases, it meets the diverse gas detection needs of various fields. Its high-precision data acquisition and processing capabilities, along with rich data storage and display functions, facilitate user management and analysis of detection data. This handheld gas detector's portable design and well-designed pump module make it suitable for various field environments, ensuring accuracy and stability in detection.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas detector with a quick-install inlet structure, comprising a housing, characterized in that: The top of the housing is equipped with a quick-connect air inlet assembly (2) for docking with a flexible hose; The quick-connect air inlet assembly (2) includes a quick-connect connector (3) mounted on the housing, a nut (4) that locks the quick-connect connector (3) onto the housing, and a plug connector (5) that seals the quick-connect connector (3) together. The quick-connect connector (3) is provided with a downward pusher (6). When the plug connector (5) is disassembled with the quick-connect connector (3), the lifting plate (7) on the downward pusher (6) is pressed. The side push rod (8) on the downward pusher (6) moves outward under the limiting and guiding action of the guide channels (9) on both sides of the lifting plate (7), thereby pushing out the plug connector (5) to reduce the force required to manually remove the plug connector (5).

2. The gas detector with a quick-installation air inlet structure according to claim 1, characterized in that: The housing consists of a front shell (10) and a rear shell (1) that are sealed together and then fixed together with screws. A circuit board and a battery are installed inside the front shell (10). An air pump and a gas detection sensor module that are electrically connected to the circuit board are installed inside the rear shell (1). The air pump's inlet end is connected to the quick-release air inlet assembly (2) through the air inlet pipe A. The air outlet end is connected to the gas detection sensor module through the air inlet pipe B. The gas detection sensor module's outlet end is connected to the outlet (11) through the outlet pipe.

3. A gas detector with a quick-installation air inlet structure according to claim 2, characterized in that: The air outlet (11) and the quick-release air inlet assembly (2) are both installed on the top of the rear shell (1), and the top of the rear shell (1) is also equipped with a temperature and humidity detection head (12).

4. A gas detector with a quick-installation air inlet structure according to claim 2, characterized in that: The quick-connector (3) includes an external threaded part (31) inserted into the rear shell (1), a connecting nozzle A (32) connected to the end of the external threaded part (31) and fitted with the air inlet pipe A for sealing, a limiting sleeve (33) connected to the front end of the external threaded part (31) and limited above the rear shell (1), a guide sleeve (34) fixed to the front end of the limiting sleeve (33), and a cover plate (35) fixed to the outer side of the guide sleeve (34) by screws; The guide sleeve (34) has vertical guide grooves (37) on both sides for lifting and lowering guides to cooperate with the lifting plate (7) and horizontal guide grooves (38) for pushing and lowering guides to cooperate with the side push rod (8). The guide rods (15) at both ends of the side push rod (8) extend into the guide channel (9).

5. A gas detector with a quick-installation air inlet structure according to claim 4, characterized in that: The top of the lifting plate (7) is provided with a pressing block (39), which is fixedly connected to the limiting sleeve (33) of the guide sleeve (34) by a spring (36).

6. A gas detector with a quick-installation air inlet structure according to claim 4, characterized in that: The nut (4) is screwed into the external thread (31) to lock the quick-connect connector (3) onto the rear shell (1).

7. A gas detector with a quick-installation air inlet structure according to claim 1, characterized in that: The connector (5) includes a plug-in nozzle B (51) that is plugged into a flexible hose and a sealing tube (52) that is connected to and sealed inside the guide sleeve (34). A number of sealing rings (53) are arranged at equal intervals on the outside of the sealing tube (52). A top plate (54) is provided on the outer side of the connection between the sealing tube (52) and the plug-in nozzle B (51).

8. A gas detector with a quick-installation air inlet structure according to claim 2, characterized in that: The integrated display module and button module on the circuit board are displayed and operated via the front cover (10).

9. A gas detector with a quick-installation air inlet structure according to claim 2, characterized in that: The back of the rear shell (1) is provided with a back clip (13), and the bottom of the front shell (10) is provided with a charging port (14) for charging the battery.

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