Multi-gas synchronous detection pipeline gas detector

CN224609075UActive Publication Date: 2026-08-07LIHONG (SHENZHEN) ENVIRONMENTAL TESTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIHONG (SHENZHEN) ENVIRONMENTAL TESTING CO LTD
Filing Date
2025-06-11
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0005]为了弥补以上不足,本实用新型提供了一种多气体同步检测管道气体检测仪,旨在解决了现有技术中对复杂结构设备更换过滤网时,不仅需整体拆卸模块,单次更换耗时较长,会严重影响监测连续性,而且在拆卸泵盖或管路时,因需避免拉扯线路,对操作人员精细度要求极高,新手操作极易造成线路损坏或接触不良的问题

Benefits of technology

[0023]1、本实用新型中,该装置通过设置拨出组件,当需要更换过滤网时,操作人员仅需先旋出螺栓解除固定,再向外拨出拨块使其与限位块接触,即可轻松省力地将更换件从连接头中拨出,并对过滤网进行更换,相较于传统方式,避免了繁琐的拆卸过程,减少了维护操作时间,显著提高了过滤网更换效率,降低了维护成本,保障了检测工作的连续性。

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Abstract

The utility model relates to gas detection instrument technical field discloses a kind of multi-gas synchronous detection pipeline gas detection instrument, including detector, the outer surface bottom of detector is fixedly connected with connecting shell, the outer surface of connecting shell is fixedly connected with connector, the outer surface of connector is hinged with replacement part, the outer surface of replacement part is inserted with the middle part inner surface of connector. In the utility model, when the filter screen needs to be replaced, the operator only needs to rotate out the bolt to release the fixation, then push out the push block to make it contact with the limiting block, and the replacement part can be easily and labor-savingly pushed out from the connector, and the filter screen is replaced. Compared with the traditional way, the tedious disassembly process is avoided, the maintenance operation time is reduced, the filter screen replacement efficiency is significantly improved, the maintenance cost is reduced, and the continuity of detection work is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of gas detector technology, and in particular to a multi-gas synchronous detection pipeline gas detector. Background Technology

[0002] When detecting gases in industrial pipelines, since the gases in industrial pipelines are often multi-component mixtures, such as methane and carbon monoxide in gas pipelines and chlorine and ammonia in chemical pipelines, a single test cannot comprehensively assess the risks. Therefore, a multi-gas synchronous detection pipeline gas detector is usually used to monitor the concentration and composition of multiple gases in the pipeline in real time and accurately obtain the specific parameters of each gas.

[0003] When using the device, first install it at points where gas is prone to accumulate or leak, or in areas requiring close monitoring. Then, set the threshold values ​​for each gas to the specified limits so that the detector's alarm can respond promptly. During daily use, it is necessary to replace consumables such as the sampling pump filter and desiccant to ensure that the gas sampling path is unobstructed. When replacing these items, carefully remove the pump cover after unscrewing the pump housing screws, taking care not to pull on the internal wiring. Then, insert the new filter into the pump chamber or pipeline in its original direction, ensuring that the sealing rings are intact to prevent leaks. Finally, tighten the pump cover screws or reconnect the pipeline to ensure airtightness.

[0004] Considering that replacing the filter screen of complex equipment requires the complete disassembly of the module, and each replacement takes a long time, which will greatly affect the continuity of monitoring, and that care must be taken to avoid pulling the wires when disassembling the pump cover or pipeline, the operator's precision is required. Novices are prone to damaging the wires or causing poor contact. Therefore, a multi-gas synchronous detection pipeline gas detector is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multi-gas synchronous detection pipeline gas detector, which aims to solve the problem that in the prior art, when replacing the filter screen of complex structure equipment, not only is it necessary to completely disassemble the module, but each replacement takes a long time, which will seriously affect the continuity of monitoring. Moreover, when disassembling the pump cover or pipeline, it is necessary to avoid pulling the wires, which requires a high degree of precision from the operator. Novice operators are very likely to cause damage to the wires or poor contact.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multi-gas synchronous detection pipeline gas detector, comprising a detector, a connecting shell fixedly connected to the bottom of the outer surface of the detector, a connecting head fixedly connected to the outer surface of the connecting shell, a replacement component hinged to the outer surface of the connecting head, the outer surface of the replacement component being inserted into the middle of the inner surface of the connecting head, a filter screen being inserted into the inner surface of the replacement component, and a pull-out component being provided on the outer surface of the replacement component;

[0007] The push-out assembly includes a push block, the outer surface of which is inserted into the outer surface of the replacement part, a rotating shaft is fixedly connected through and fixed to the left side of the inner surface of the push block, the outer surface of the rotating shaft is rotatably connected to the inner surface of the replacement part, the top of the outer surface of the rotating shaft is elastically connected to the inner surface of the replacement part through a spiral spring, a limit block is fixedly connected to the outer surface of the replacement part, and the outer surface of the push block is in contact with the outer surface of the limit block.

[0008] As a further description of the above technical solution:

[0009] A fixing member A is fixedly connected to the right side of the outer surface of the replacement part, and a fixing member B is fixedly connected to the middle of the outer surface of the connector. The outer surface of the fixing member A is inserted into the inner surface of the fixing member B.

[0010] As a further description of the above technical solution:

[0011] The inner surface of the fastener B and the inner surface of the fastener A are connected together and a bolt is inserted therein. The top of the outer surface of the fastener B is fixedly connected to a threaded sleeve. The top of the outer surface of the bolt is connected to the inner surface of the threaded sleeve through and threaded.

[0012] As a further description of the above technical solution:

[0013] The outer surface of the replacement part is provided with a sealing groove, and a sealing ring is fixedly connected to the middle of the inner surface of the connector. The inner surface of the sealing groove is inserted into the outer surface of the sealing ring.

[0014] As a further description of the above technical solution:

[0015] The outer surface of the replacement part has an easy-to-pull groove, which is crescent-shaped.

[0016] As a further description of the above technical solution:

[0017] A display screen is fixedly connected to the front end of the outer surface of the detector.

[0018] As a further description of the above technical solution:

[0019] A warning light is fixedly connected to the top of the outer surface of the detector.

[0020] As a further description of the above technical solution:

[0021] A mounting plate is fixedly connected to the rear of the outer surface of the detector.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the device is equipped with a pull-out component. When the filter screen needs to be replaced, the operator only needs to unscrew the bolt to release the fixation, and then pull out the pull-out block to make it contact the limit block. The replacement part can be easily and effortlessly pulled out of the connector and the filter screen can be replaced. Compared with the traditional method, it avoids the cumbersome disassembly process, reduces maintenance operation time, significantly improves the filter screen replacement efficiency, reduces maintenance costs, and ensures the continuity of testing work.

[0024] 2. In this utility model, the lever in the lever assembly is embedded in the outer surface of the replacement part when not in use. The spiral spring provides elastic restoring force, and the limiting block restricts its rotation range. This design not only avoids accidental contact, but also ensures that the lever is within the specified range during operation, ensuring stable force during the disassembly and installation of the replacement part, and preventing damage to the connector or replacement part due to improper operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the main structure of a multi-gas synchronous detection pipeline gas detector proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the flip-out structure of a multi-gas synchronous detection pipeline gas detector proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the pull-out component structure of a multi-gas synchronous detection pipeline gas detector proposed in this utility model;

[0028] Figure 4 This is a cross-sectional structural diagram of the connector of a multi-gas synchronous detection pipeline gas detector proposed in this utility model.

[0029] Legend:

[0030] 1. Detector; 2. Display screen; 3. Warning light; 4. Mounting plate; 5. Connecting shell; 6. Connector; 7. Replacement parts; 8. Pull-out assembly; 801. Pull block; 802. Rotating shaft; 803. Scroll spring; 804. Limit block; 9. Filter screen; 10. Fixing part A; 11. Bolt; 12. Fixing part B; 13. Threaded sleeve; 14. Sealing groove; 15. Sealing ring. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1-2 , Figure 4 This utility model provides an embodiment of a multi-gas synchronous detection pipeline gas detector, including a detector 1. The detector 1 is used to detect the gas input into it. A connecting shell 5 is fixedly connected to the bottom of the outer surface of the detector 1. The connecting shell 5 connects the detector 1 to multiple sets of connecting heads 6. Connecting heads 6 are fixedly connected to the outer surface of the connecting shell 5. The connecting heads 6 are key components for realizing the quick connection between the detector 1 and the external pipeline, and can easily dock with the pipeline interface to ensure the stability of the gas flow path. A replacement part 7 is hinged to the outer surface of the connecting head 6. 7 is hinged to the connector 6, facilitating the disassembly and replacement of its internal components and providing convenience for maintenance. The outer surface of the replacement part 7 is inserted into the middle of the inner surface of the connector 6. This insertion method ensures a tight connection between the replacement part 7 and the connector 6, ensuring gas flow while preventing gas leakage and ensuring the accuracy of the test data. A filter screen 9 is inserted into the inner surface of the replacement part 7. The filter screen 9 can filter out impurities, particles and other substances in the gas, preventing these impurities from entering the detector 1 and preventing damage to the detection elements of the detector 1, thus ensuring the service life and detection accuracy of the detector 1.

[0033] Reference Figure 3 The outer surface of the replacement part 7 is provided with a pull-out component 8. The pull-out component 8 is designed to make it easier and more convenient to remove the replacement part 7 from the connector 6 when replacing the filter screen 9. The pull-out component 8 includes a lever 801, the outer surface of which is inserted into the outer surface of the replacement part 7. When not in use, the lever 801 can be embedded in the outer surface of the replacement part 7 to prevent accidental activation. A rotating shaft 802 is passed through and fixedly connected to the left side of the inner surface of the lever 801. The outer surface of the rotating shaft 802 is rotatably connected to the inner surface of the replacement part 7. The rotating shaft 802 provides a support point for the rotation of the lever 801, allowing the lever 801 to... The rotating shaft 802 has an outward flipping effect along the inner surface of the replacement part 7. The top of the outer surface of the rotating shaft 802 is elastically connected to the inner surface of the replacement part 7 through a spiral spring 803. The elastic action of the spiral spring 803 enables the lever 801 to automatically reset when not in use, always maintaining the effect of fitting with the outer surface of the replacement part 7. A limit block 804 is fixedly connected to the outer surface of the replacement part 7. The outer surface of the lever 801 is in contact with the outer surface of the limit block 804. The limit block 804 restricts the rotation range of the lever 801, preventing the lever 801 from rotating excessively and leaving the normal working position, ensuring that the lever 801 functions within the specified range.

[0034] Reference Figures 2-3A fastener A10 is fixedly connected to the right side of the outer surface of the replacement part 7. The fastener A10 is used to cooperate with the fastener B12 on the connector 6 to fix the replacement part 7, ensuring that the replacement part 7 will not loosen or fall off during operation. A fastener B12 is fixedly connected to the middle of the outer surface of the connector 6. The outer surface of the fastener A10 is inserted into the inner surface of the fastener B12. The fastener B12 and the fastener A10 cooperate with each other. Then, the replacement part 7 is firmly fixed to the connector 6 by bolts 11 and other connecting parts, ensuring the overall stability. For structural stability, the inner surface of fastener B12 and the inner surface of fastener A10 are connected together and bolts 11 are inserted, so that the two fasteners can always be kept on the same vertical line through the insertion of bolts 11. The top of the outer surface of fastener B12 is fixedly connected to a threaded sleeve 13, which provides a fixed base for bolts 11. The top of the outer surface of bolt 11 is connected to the inner surface of threaded sleeve 13 through and threaded, so that bolt 11 can always maintain the effect of being inserted with the two sets of fasteners through the threaded connection with threaded sleeve 13.

[0035] Reference Figure 2 , Figure 4 The outer surface of the replacement part 7 is provided with a sealing groove 14, and a sealing ring 15 is fixedly connected to the middle of the inner surface of the connector 6. The inner surface of the sealing groove 14 is inserted into the outer surface of the sealing ring 15. The sealing ring 15 is inserted into the sealing groove 14 of the replacement part 7, which can effectively fill the connection gap, enhance the sealing effect, ensure that the gas detected by the detector 1 is the gas to be tested that enters from the pipeline, avoid interference from external gases, and ensure the accuracy of the test results.

[0036] Reference Figure 1 , Figure 3 The outer surface of the replacement part 7 has an easy-pull groove in the shape of a crescent moon. The easy-pull groove is designed to facilitate the removal of the prying block 801 embedded in the surface of the replacement part 7. The crescent shape is designed to better fit the fingers or tools. The front end of the outer surface of the detector 1 is fixedly connected to a display screen 2. The display screen 2 is used to display the concentration, composition and other data of various gases detected by the detector 1 in real time, so that the operator can intuitively understand the detection results. The top of the outer surface of the detector 1 is fixedly connected to a warning light 3. When the gas concentration is detected to exceed the preset threshold or an abnormal situation occurs, the warning light 3 can emit a clear light signal to remind the operator to pay attention to potential dangers and take appropriate measures in time. The rear of the outer surface of the detector 1 is fixedly connected to a mounting plate 4. The mounting plate 4 provides a fixed position for the detector 1, so that the detector 1 can be installed on the wall, bracket or other position near the pipeline, so that the detector 1 can stably perform gas detection.

[0037] Working principle: When the filter screen 9 inside the connector 6 needs to be replaced, first unscrew the bolt 11 to release the fixing part A10 on the replacement part 7. Then, first push the lever 801 outward to contact the limiting block 804, so that the replacement part 7 can be pushed out of the connector 6 more easily and effortlessly by moving the lever 801. After the replacement part 7 is flipped out to the designated position, take out the filter screen 9 from the inside of the replacement part 7, and then put the new filter screen 9 into the inside of the replacement part 7. Then push the replacement part 7 into the connector 6 so that the fixing part A10 on the replacement part 7 is inserted into the fixing part B12. Then, use the bolt 11 to pass through the fixing part A10 and the fixing part B12 at the same time, and then thread it into the threaded sleeve 13 on the top of the fixing part B12. This way, the replacement part 7 will always be inserted into the inside of the connector 6 because the fixing part A10 is fixed in the designated position, so that the filter screen 9 can be kept in the designated position.

[0038] 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 multi-gas synchronous detection pipeline gas detector, comprising a detector (1), characterized in that: The detector (1) has a connecting shell (5) fixedly connected to the bottom of its outer surface. The connecting shell (5) has a connecting head (6) fixedly connected to its outer surface. The connecting head (6) has a replacement part (7) hinged to its outer surface. The outer surface of the replacement part (7) is inserted into the middle of the inner surface of the connecting head (6). The inner surface of the replacement part (7) has a filter screen (9) inserted into it. The outer surface of the replacement part (7) is provided with a pull-out component (8). The push-out assembly (8) includes a push block (801), the outer surface of which is inserted into the outer surface of the replacement part (7). A rotating shaft (802) is fixedly connected through the left side of the inner surface of the push block (801). The outer surface of the rotating shaft (802) is rotatably connected to the inner surface of the replacement part (7). The top of the outer surface of the rotating shaft (802) is elastically connected to the inner surface of the replacement part (7) through a spiral spring (803). A limiting block (804) is fixedly connected to the outer surface of the replacement part (7). The outer surface of the push block (801) is in contact with the outer surface of the limiting block (804).

2. The multi-gas synchronous detection pipeline gas detector according to claim 1, characterized in that: The replacement part (7) is fixedly connected to the right side of the outer surface of the fastener A (10), and the connector (6) is fixedly connected to the middle of the outer surface of the fastener B (12). The outer surface of the fastener A (10) is inserted into the inner surface of the fastener B (12).

3. The multi-gas synchronous detection pipeline gas detector according to claim 2, characterized in that: The inner surface of the fastener B (12) and the inner surface of the fastener A (10) are connected together and a bolt (11) is inserted therein. A threaded sleeve (13) is fixedly connected to the top of the outer surface of the fastener B (12). The top of the outer surface of the bolt (11) is connected to the inner surface of the threaded sleeve (13) through and threaded.

4. The multi-gas synchronous detection pipeline gas detector according to claim 1, characterized in that: The outer surface of the replacement part (7) is provided with a sealing groove (14), and a sealing ring (15) is fixedly connected to the middle of the inner surface of the connector (6). The inner surface of the sealing groove (14) is inserted into the outer surface of the sealing ring (15).

5. A multi-gas synchronous detection pipeline gas detector according to claim 1, characterized in that: The outer surface of the replacement part (7) is provided with an easy-to-pull groove, which is crescent-shaped.

6. A multi-gas synchronous detection pipeline gas detector according to claim 1, characterized in that: The detector (1) has a display screen (2) fixedly connected to the front end of its outer surface.

7. A multi-gas synchronous detection pipeline gas detector according to claim 1, characterized in that: A warning light (3) is fixedly connected to the top of the outer surface of the detector (1).

8. A multi-gas synchronous detection pipeline gas detector according to claim 1, characterized in that: The outer surface of the detector (1) is fixedly connected to a mounting plate (4).