Replaceable sensor module for multi-gas detector

Abstract

The utility model relates to gas detection equipment technical field, concretely, it relates to the replaceable sensing module of multi -gas detector, including multi -gas detector main part and the inner processing host computer of setting in multi -gas detector main part, and a plurality of electric connection sockets of passing out multi -gas detector main part are fixedly installed on the inner processing host computer, the head of multi -gas detector main part is fixedly installed with the detection pipe, is provided with detection channel in the detection pipe, and the detection pipe is fixedly installed with the assembly box, and a plurality of gas detection sensors of inserting into detection channel are detachably installed in the assembly box part, and the electric connection plug is connected with electric connection socket through the cable on the gas detection sensor, and the electric connection plug and electric connection socket are inserted and cooperate, and the tail of detection pipe is fixedly installed with the outlet pipe, and the head pipe body of detection pipe is provided with micro - fan. The utility model is convenient for the individual replacement operation of sensor, saves the cost, and is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of gas detection equipment technology, and more specifically, to a replaceable sensor module for multiple gas detectors. Background Technology

[0002] Multi-gas detectors integrate multiple gas sensors to simultaneously detect the concentrations of various gases such as formaldehyde, carbon monoxide, and hydrogen sulfide, making them a key device for ensuring safety in production and daily life.

[0003] Chinese Patent Application Publication No. CN112782353A discloses a sensor assembly comprising a substrate and a disk for providing parallel gas flow to a plurality of sensing dies. The substrate defines a plurality of openings and an inlet conduit. The plurality of openings are adapted to receive at least one of the plurality of sensing dies. The inlet conduit is defined between a first end and a second end of the substrate. The first end of the substrate is adapted to receive the inflow of gas. The disk is adapted to be positioned below the substrate such that a top portion of the disk is exposed to the second end of the inlet conduit, and the disk defines a channel for the gas to flow uniformly from the second end to the sensor head of the at least one sensing die.

[0004] While the aforementioned technical solutions offer corresponding advantages, existing detector sensing structures still have some shortcomings in use: For example, they suffer from low module integration and are difficult to replace. Most sensors are welded or fixedly packaged with the detector body; if a single sensor fails, the entire detector must be replaced, or specialized tools are required for disassembly, welding, and replacement, making the operation cumbersome, prone to damaging the main circuitry, and resulting in high maintenance costs. Furthermore, most multi-gas detectors rely primarily on the flow of the gas itself for detection, lacking corresponding gas introduction components, which can easily lead to gas difficulty entering the detection channel for timely detection, affecting performance. Therefore, we propose a replaceable sensing module for multi-gas detectors. Utility Model Content

[0005] The purpose of this invention is to provide a replaceable sensing module for multi-gas detectors to address the deficiencies mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A replaceable sensor module for a multi-gas detector includes a multi-gas detector body and an internal processing host disposed within the multi-gas detector body. Multiple electrical connection sockets extending out of the multi-gas detector body are fixedly installed on the internal processing host. A detection tube is fixedly installed at the head of the multi-gas detector body, and a detection channel is provided within the detection tube. An assembly box is fixedly installed on the detection tube, and multiple gas detection sensors inserted into the detection channel are detachably installed on the assembly box. Electrical connection plugs are connected to the gas detection sensors via cables, and the electrical connection plugs are plugged into the electrical connection sockets. An outlet pipe is fixedly installed at the tail of the detection tube, and a miniature fan is disposed within the head of the detection tube.

[0007] Preferably, the multi-gas detector body consists of a lower cover and an upper cover that is detachably mounted on the top surface of the lower cover, and the electrical connection socket extends through the upper cover.

[0008] Preferably, the vent pipe is located below the detection tube, and the gas in the detection channel is discharged from the vent pipe. This setting ensures that the incoming detection gas can be discharged normally after being detected.

[0009] Preferably, an arc-shaped drainage surface is provided on the rear side wall of the detection channel, and the arc-shaped drainage surface guides the gas to be discharged along the gas outlet pipe. This feature allows the gas to be discharged more smoothly through the outlet pipe.

[0010] Preferably, the gas detection sensor is inserted into the top plate of the assembly box, and a fixed support is fixedly installed at the top of the gas detection sensor. The fixed support is detachably installed on the top surface of the assembly box by multiple fastening screws. This feature allows for easy installation, removal, and replacement of the gas detection sensor.

[0011] Preferably, a threaded cylinder is detachably installed on the air inlet end of the detection tube, and a dustproof and breathable mesh is provided on the inner wall of the threaded cylinder; This setup allows for both ventilation and dust protection using a dustproof and breathable mesh.

[0012] Preferably, a threaded sleeve is fixedly installed on the air inlet end of the detection tube, and the threaded cylinder and the threaded sleeve are threadedly connected. This feature makes it easier to load and unload the threaded cylinder.

[0013] Preferably, a cable clip is fixedly installed at the end of the top cover. The cable clip is used for cable storage. The top of the cable clip has a snap-in gap that runs along the length of the cable clip. This setting allows for the concealment of exposed cables. Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the detachable plug-in structure of the assembly box and the gas detection sensor, combined with the fastening screw connection of the fixed support and the plug-in cooperation of the electrical connection plug and electrical connection socket, enables the independent replacement of a single gas detection sensor, thereby reducing maintenance costs and improving operational convenience. When a sensor fails, there is no need to disassemble the detector body or perform soldering operations; simply remove the screws of the fixed support to remove the old sensor, replace it with a new sensor, and reconnect the circuit, avoiding the waste of replacing the entire detector.

[0014] 2. This utility model achieves active and rapid gas introduction and smooth gas discharge by setting a miniature fan at the head of the detection tube, combined with the arc-shaped flow guide surface and the layout of the gas outlet pipe in the detection channel, thereby improving the timeliness and accuracy of detection. The miniature fan can actively draw external gas into the detection channel, solving the detection delay problem caused by relying on natural gas flow. The arc-shaped flow guide surface guides the gas to flow evenly through each gas detection sensor before being discharged from the gas outlet pipe.

[0015] 3. This utility model, by setting up a detachable multi-gas detector body consisting of an upper and lower cover, a threaded cylinder with a dustproof and breathable mesh, and a cable clamping sleeve, achieves flexible maintenance and standardized storage of the device, thereby extending equipment life and optimizing the user experience. The separation of the upper and lower covers facilitates the maintenance of the internal processing unit; the threaded cylinder is detachable via the threaded sleeve, making it easy to clean or replace the dustproof and breathable mesh to maintain unobstructed air intake; and the cable clamping sleeve can hold cables by snapping them into the gaps, preventing tangled cables from affecting operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 2 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the structure of the wire clip of this utility model; The meanings of the labels in the diagram are as follows: 1. Multi-gas detector body; 10. Top cover; 11. Bottom cover; 12. Internal processing unit; 13. Electrical connection socket; 14. Detection tube; 141. Detection channel; 142. Arc-shaped drainage surface; 15. Assembly box; 16. Gas detection sensor; 161. Fixing support; 17. Electrical connection plug; 18. Gas outlet pipe; 19. Miniature fan; 2. Threaded sleeve; 20. Threaded cylinder; 21. Dustproof and breathable mesh; 3. Cable clip; 30. Clip into the gap. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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. Please see Figures 1-3 This utility model provides a technical solution: a replaceable sensor module for a multi-gas detector, including a multi-gas detector body 1 and an internal processing host 12 disposed within the multi-gas detector body 1. Multiple electrical connection sockets 13 extending out of the multi-gas detector body 1 are fixedly installed on the internal processing host 12. A detection tube 14 is fixedly installed at the head of the multi-gas detector body 1. A detection channel 141 is provided inside the detection tube 14. An assembly box 15 is fixedly installed on the detection tube 14. Multiple gas detection sensors 16 are detachably installed on the assembly box 15 and inserted into the detection channel 141, allowing multiple gas detection sensors 16 to be inserted into the detection channel 141, providing a reasonable installation and detection space for simultaneous detection of multiple gases. An electrical connection plug 17 is connected to the gas detection sensor 16 via a cable. The electrical connection plug 17 and the electrical connection socket 13 are plugged in and connected, enabling the gas detection sensor 16 to achieve circuit connection through the electrical connection plug 17, providing a stable hardware foundation for the transmission and processing of detection data.

[0018] like Figure 1 As shown, an exhaust pipe 18 is fixedly installed at the tail of the detection tube 14, and a miniature fan 19 is installed inside the head tube of the detection tube 14, so that external gas can be actively drawn into the detection channel 141, which solves the detection delay problem caused by relying on natural gas flow; the exhaust pipe 18 can prevent gas from stagnating in the channel and affecting the subsequent detection accuracy.

[0019] like Figure 1 As shown, the multi-gas detector body 1 consists of a lower cover 11 and an upper cover 10 that is detachably mounted on the top surface of the lower cover 11. The electrical connection socket 13 extends through the upper cover 10, making the maintenance of the internal processing host 12 more convenient, and at the same time facilitating the docking of the electrical connection socket 13 and the electrical connection plug 17.

[0020] like Figure 1 As shown, the exhaust pipe 18 is located below the detection pipe 14. The gas in the detection channel 141 is discharged from the exhaust pipe 18, so that the incoming detection gas can be discharged downward and outward normally after detection, avoiding the gas from being discharged to one side of the face.

[0021] like Figure 1As shown, an arc-shaped drainage surface 142 is provided on the rear side wall of the detection channel 141. The arc-shaped drainage surface 142 guides the gas to be discharged along the gas outlet pipe 18, so that the gas can be discharged along the arc-shaped surface and the gas outlet pipe 18, further improving the smoothness of gas discharge.

[0022] In this embodiment, the gas detection sensor 16 is inserted into the top plate of the assembly box 15. A fixed support 161 is fixedly installed at the top of the gas detection sensor 16. The fixed support 161 is detachably installed on the top surface of the assembly box 15 by multiple fastening screws, making it easier to install and remove the gas detection sensor 16 and facilitating the replacement operation after a single sensor fails.

[0023] like Figure 1 and Figure 2 As shown, a threaded cylinder 20 is detachably installed on the air inlet end of the detection tube 14. A dustproof and breathable mesh 21 is provided on the inner wall of the threaded cylinder 20, so that the device can block dust from entering the detection channel 141 while conducting air permeation detection, thus avoiding dust from affecting the sensor detection effect.

[0024] In addition, a threaded sleeve 2 is fixedly installed on the air inlet end of the detection tube 14, and the threaded sleeve 20 is threadedly connected to the threaded sleeve 2, making it easier to install and remove the threaded sleeve 20 and to clean or replace the dustproof and breathable mesh 21.

[0025] like Figure 1 and Figure 3 As shown, a cable clip 3 is fixedly installed at the end of the upper cover 10. The cable clip 3 is used for cable storage. The top of the cable clip 3 is provided with a snap-in gap 30 along the length of the cable clip 3, so that the cable connected to the gas detection sensor 16 can be stored through the snap-in gap 30, avoiding the cable from being messy and tangled and affecting the operation.

[0026] It is worth noting that the gas detection sensor 16 is connected to the electrical connector 17 via a cable. After the electrical connector 17 and the electrical connector 13 are plugged in, a closed circuit is formed. When the gas detection sensor 16 detects gas, it generates an electrical signal, which is transmitted to the internal processing host 12 via the cable, electrical connector 17, and electrical connector 13. The host analyzes and processes the signal to realize gas concentration detection. The plug-in connection also facilitates sensor replacement.

[0027] Finally, it should be noted that the internal processing host 12, electrical connection socket 13, gas detection sensor 16, electrical connection plug 17, corresponding control circuit, control system, and built-in mobile power supply involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and adapted controllers and power supplies, are connected by wires. The specific connection method should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0028] When using the replaceable sensor module of the multi-gas detector of this utility model, insert the gas detection sensor 16 into the assembly box 15 and fix it with the fastening screw of the fixing support 161 so that it extends into the detection channel 141. Then, plug the electrical connection plug 17 into the electrical connection socket 13. The cable is stored through the insertion gap 30 of the cable clip sleeve 3. Screw the threaded cylinder 20 into the threaded sleeve 2 of the detection tube 14 and use the dustproof and breathable mesh 21 to block dust. During testing, the device is activated, and the miniature fan 19 at the head of the detection tube 14 actively draws in external gas. The gas enters the detection channel 141 through the dustproof and breathable mesh 21. Each gas detection sensor 16 generates an electrical signal after detection, which is transmitted to the internal processing host 12 via cable, electrical connector 17, and electrical connector socket 13. After analysis and processing by the host, the concentration data is obtained. The detected gas is guided along the arc-shaped drainage surface 142 to the lower outlet pipe 18 for discharge, avoiding it from facing the face. When the test is completed or maintenance is required, if the sensor fails, it can be replaced by removing the screws of the fixing bracket 161. The electrical connection plug 17 is plugged in and out to complete the circuit connection. The threaded sleeve 20 is unscrewed periodically to clean the dustproof and breathable mesh 21.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A replaceable sensor module for a multi-gas detector, comprising a multi-gas detector body (1) and an internal processing host (12) disposed within the multi-gas detector body (1), characterized in that: Multiple electrical connection sockets (13) extending out of the multi-gas detector body (1) are fixedly installed on the internal processing host (12). A detection tube (14) is fixedly installed at the head of the multi-gas detector body (1). A detection channel (141) is provided inside the detection tube (14). An assembly box (15) is fixedly installed on the detection tube (14). Multiple gas detection sensors (16) inserted into the detection channel (141) are detachably installed on the assembly box (15). An electrical connection plug (17) is connected to the gas detection sensor (16) via a cable. The electrical connection plug (17) is plugged into the electrical connection socket (13). An exhaust pipe (18) is fixedly installed at the tail of the detection tube (14). A miniature fan (19) is provided inside the head tube of the detection tube (14).

2. The replaceable sensor module for a multi-gas detector according to claim 1, characterized in that: The multi-gas detector body (1) consists of a lower cover (11) and an upper cover (10) that is detachably mounted on the top surface of the lower cover (11), and the electrical connection socket (13) extends through the upper cover (10).

3. The replaceable sensor module for a multi-gas detector according to claim 1, characterized in that: The vent pipe (18) is located below the detection pipe (14), and the gas in the detection channel (141) is discharged from the vent pipe (18).

4. The replaceable sensor module for a multi-gas detector according to claim 1, characterized in that: An arc-shaped drainage surface (142) is provided on the rear side wall of the detection channel (141), and the arc-shaped drainage surface (142) guides the gas to be discharged along the gas outlet pipe (18).

5. The replaceable sensor module for a multi-gas detector according to claim 1, characterized in that: The gas detection sensor (16) is inserted into the top plate of the assembly box (15). A fixed support (161) is fixedly installed at the top of the gas detection sensor (16). The fixed support (161) is detachably installed on the top surface of the assembly box (15) by multiple fastening screws.

6. The replaceable sensor module for a multi-gas detector according to claim 1, characterized in that: A threaded cylinder (20) is detachably installed on the air inlet end of the detection tube (14), and a dustproof and breathable mesh (21) is provided on the inner wall of the threaded cylinder (20).

7. The replaceable sensor module for a multi-gas detector according to claim 6, characterized in that: A threaded sleeve (2) is fixedly installed on the air inlet end of the detection tube (14), and the threaded cylinder (20) is threadedly connected to the threaded sleeve (2).

8. The replaceable sensor module for a multi-gas detector according to claim 2, characterized in that: A cable clip (3) is fixedly installed at the end of the top cover (10). The cable clip (3) is used for cable storage. The top of the cable clip (3) is provided with a snap-in gap (30) along the length direction of the cable clip (3).

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