Pipeline gas detector with rotatable probe

By designing a pipeline gas detector with a rotatable probe, the problem of incorrect probe orientation was solved, achieving high-precision gas detection and providing effective protection for the detector.

CN224245962UActive Publication Date: 2026-05-15LIHONG (SHENZHEN) ENVIRONMENTAL TESTING CO LTD
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Patent Information

Application Number
CN202521396804.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-04
Publication Date
2026-05-15
Estimated Expiration
2035-07-04

AI Technical Summary

Technical Problem

The probes of existing pipeline gas detectors can only be pointed vertically, which leads to incorrect orientation or gas flow deviation during gas testing, affecting detection accuracy.

Method used

A pipeline gas detector with a rotatable probe was designed. Through adjustment mechanisms and auxiliary mechanisms, including movable pipes, bent probes, limit rods and other components, the probe can be flexibly adjusted to ensure that it is aligned with the airflow direction and adapts to different pipe sizes.

Benefits of technology

It improves the accuracy and comprehensiveness of detection, is suitable for various complex pipeline scenarios, and protects the main body of the detector with a protective cover to prevent dust contamination and ensure that data observation is not affected.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of gas detection equipment, and discloses a pipeline gas detector with a rotatable probe, which comprises a support and a pipeline butt joint, the pipeline butt joint is fixedly connected to the outer wall of the bottom of the support, an adjusting mechanism is arranged on the support, an auxiliary mechanism is arranged on the support, the adjusting mechanism comprises a movable pipeline, and the movable pipeline is fixedly connected with the pipeline butt joint. The movable pipeline is slidably connected to the inner wall of the bottom of the support, a bent detection head is fixedly connected to the bottom end of the movable pipeline, an adjusting hole is formed in the outer wall of the side face of the movable pipeline, a movable plate is slidably connected to the inner wall of the rear side of the support, and a limiting rod is fixedly connected to the outer wall of the right side of the movable plate. According to the utility model, through mutual cooperation of the movable pipeline, the bent detection head, the adjusting hole and other parts of the adjusting mechanism, the position and angle of the detection head can be flexibly adjusted according to the actual condition of the pipeline. The detection head can directly face the airflow direction of the pipeline, and the influence of airflow deflection on the detection precision is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of gas detection equipment technology, and in particular to a pipeline gas detector with a rotatable probe. Background Technology

[0002] A pipeline gas detector is a detection device used to detect the gas flow in pipelines. It can detect gas concentration in real time and output current signals so that workers can detect gas leaks in pipelines in a timely manner and avoid situations that affect normal work. It is widely used in industries such as petroleum, chemical, gas, metallurgy, power, municipal, and mining.

[0003] A search revealed Chinese Patent Publication No. CN213398452U, which discloses a portable pipeline gas detector. The detector includes a main body, a connector, a limiting mechanism, a support rod, and a telescopic adjustment mechanism. The connector has a mounting groove on its lower end face. The upper end of the support rod is movably installed into the mounting groove. Slots are provided on both sides of the support rod within the mounting groove. Limiting mechanisms are located on both sides of the connector, and these mechanisms can be inserted into the slots to fix the end of the support rod within the mounting groove. A telescopic adjustment mechanism is located at the lower end of the support rod. This allows for quick assembly and disassembly of the support rod and the main body of the detector according to usage requirements, and also allows for convenient and quick adjustment of the extended length of the main body, improving the practicality of the equipment.

[0004] The above-mentioned device has the following defects: after the pipeline internal detector is installed, the probe can only be oriented vertically, which leads to incorrect probe orientation or gas flow deviation during gas testing, affecting the detection accuracy of the probe. Therefore, a pipeline gas detector with a rotatable probe is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a pipeline gas detector with a rotatable probe, which aims to improve the problem in the prior art where the probe of the pipeline internal detector can only face the vertical direction after installation, resulting in incorrect probe orientation or gas flow deviation during gas testing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a pipeline gas detector with a rotatable probe, comprising a bracket and a pipeline connector, the pipeline connector being fixedly connected to the bottom outer wall of the bracket, an adjustment mechanism being provided on the bracket, an auxiliary mechanism being provided on the bracket, the adjustment mechanism comprising a movable pipeline, the movable pipeline being slidably connected to the bottom inner wall of the bracket, a bent probe being fixedly connected to the bottom end of the movable pipeline, an adjustment hole being provided on the side outer wall of the movable pipeline, a movable plate being slidably connected to the rear inner wall of the bracket, a limit rod being fixedly connected to the right outer wall of the movable plate, a gas detector body being fixedly connected to the top end of the movable pipeline, and a compression spring being fixedly connected to the left outer wall of the movable plate.

[0007] As a further description of the above technical solution: the auxiliary mechanism includes a T-slot, which is formed on the top inner wall of the bracket. T-shaped frames are slidably connected to the left and right inner walls of the T-slot. A protective cover is fixedly connected to the right outer wall of the T-shaped frame. A lever is slidably connected to the top inner wall of the T-shaped frame. An insert plate is fixedly connected to the front outer wall of the lever. A telescopic spring is fixedly connected to the rear outer wall of the lever.

[0008] As a further description of the above technical solution: there are several adjustment holes, which are arranged in a ring on the outer side wall of the movable pipe, and the adjustment holes are arranged vertically on the outer side wall of the movable pipe in sequence.

[0009] As a further description of the above technical solution: frosted pads are fixedly connected to the outer walls of the left and right sides of the movable plate, the limiting rod passes through the inner wall of one side of the bracket, and a steel sleeve is fixedly connected to the outer wall of the side of the limiting rod.

[0010] As a further description of the above technical solution: the limiting rod is snapped into the inner side wall of the adjustment hole, and a directional mark is fixedly connected to the bottom outer wall of the bracket.

[0011] As a further description of the above technical solution: transparent glass is fixedly connected to the inner walls of both the front and rear sides of the protective cover.

[0012] As a further description of the above technical solution: silicone pads are fixedly connected to the outer walls of the left and right sides of the lever, and the insert plate penetrates the front outer wall of the T-shaped frame.

[0013] As a further description of the above technical solution: a wear-resistant pad is fixedly connected to the outer side wall of the insert plate, and the insert plate is snapped into the inner side wall of the front side of the T-slot.

[0014] As a further description of the above technical solution: the left and right outer walls of the bracket are provided with hand grip grooves, and the inner side walls of the hand grip grooves are fixedly connected with reflective strips.

[0015] As a further description of the above technical solution: the end of the telescopic spring away from the lever is fixedly connected to the rear inner wall of the T-shaped frame, the inner diameter of the protective cover is larger than the length and width of the gas detector body, and the protective cover contacts the bottom inner wall of the bracket.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, the movable pipe of the adjustment mechanism, the bent probe, the adjustment hole, the movable plate, the limiting rod, and other components work together to flexibly adjust the position and angle of the probe according to the actual situation of the pipeline. This ensures that the probe is directly facing the airflow direction in the pipeline, avoiding the impact of airflow deviation on detection accuracy, and also allows the probe to be moved up and down to a relatively centered position according to the size of the pipeline, ensuring comprehensiveness and accuracy of the detection. It is suitable for various complex pipeline inspection scenarios.

[0018] 2. In this utility model, the protective and unfolding switching of the gas detector body can be easily realized through the cooperation of components such as the lever, the insert plate, the telescopic spring, and the protective cover. The protective cover can prevent the detector body from being contaminated by dust, and its transparent glass does not affect the observation of data. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall front view of a pipeline gas detector with a rotatable probe proposed in this utility model.

[0020] Figure 2 This is a side view of the overall structure of a pipeline gas detector with a rotatable probe proposed in this utility model.

[0021] Figure 3 This is a cross-sectional schematic diagram of a pipeline gas detector with a rotatable probe according to the present invention.

[0022] Figure 4 This is a schematic diagram of the auxiliary mechanism of a pipeline gas detector with a rotatable probe proposed in this utility model.

[0023] Legend:

[0024] 1. Bracket; 2. Pipe joint; 3. Hand grip groove; 4. Adjustment mechanism; 41. Movable pipe; 42. Bent probe; 43. Adjustment hole; 44. Movable plate; 45. Limiting rod; 46. Gas detector body; 47. Compression spring; 48. Pointing mark; 5. Auxiliary mechanism; 51. T-slot; 52. T-frame; 53. Protective cover; 54. Transparent glass; 55. Paddle; 56. Insert plate; 57. Telescopic spring. Detailed Implementation

[0025] 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.

[0026] Reference Figures 1-3 This utility model provides an embodiment of a pipeline gas detector with a rotatable probe, comprising a support 1 and a pipeline connector 2. The pipeline connector 2 is fixedly connected to the bottom outer wall of the support 1. The support 1 serves as the basic support structure for the entire detector, providing an installation carrier for other components and ensuring the overall structural stability of the detector. The pipeline connector 2 is used to connect the detector to the pipeline. Fixing it to the bottom outer wall of the support 1 ensures a stable connection and facilitates subsequent detection of gas in the pipeline. The support 1 is equipped with an adjustment mechanism 4 and an auxiliary mechanism 5. The adjustment mechanism 4 includes a movable pipe 41, which is slidably connected to the bottom inner wall of the support 1. A curved probe 42 is fixedly connected to the bottom end of the movable pipe 41. The probe 42 is used to penetrate deep into the pipeline for gas detection. It is fixed to the bottom of the movable pipeline 41. The position and detection angle of the probe can be adjusted by moving and rotating the movable pipeline 41 to adapt to different detection scenarios. The outer side wall of the movable pipeline 41 has an adjustment hole 43. The inner rear wall of the bracket 1 is slidably connected to a movable plate 44. The right outer wall of the movable plate 44 is fixedly connected to a limit rod 45. The limit rod 45 cooperates with the adjustment hole 43 to limit the movement and rotation of the movable pipeline 41, ensuring the stability of the position and angle of the movable pipeline 41 during the detection process and ensuring the accuracy of the detection results. The top of the movable pipeline 41 is fixedly connected to the gas detector body 46, and the left outer wall of the movable plate 44 is fixedly connected to a compression spring 47.

[0027] Reference Figures 2-4There are several adjustment holes 43, which are arranged in a ring on the outer side wall of the movable pipe 41. The multiple adjustment holes 43 are distributed in a ring, which allows the movable pipe 41 to be adjusted at multiple angles in the horizontal direction to meet the detection needs in different directions and improve the applicability of the detector. The adjustment holes 43 are arranged vertically on the outer side wall of the movable pipe 41. The left and right outer walls of the movable plate 44 are fixedly connected with frosted pads. The limiting rod 45 passes through the inner wall of one side of the bracket 1. The outer side wall of the limiting rod 45 is fixedly connected with a steel sleeve. The limiting rod 45 is snapped into the inner side wall of the adjustment hole 43. The bottom outer wall of the bracket 1 is fixedly connected with a directional mark 48. The left and right outer walls of the bracket 1 are provided with hand grip grooves 3. The design of the hand grip grooves 3 is ergonomic, which makes it convenient for the operator to hold the bracket 1, making the operation more comfortable and stable and reducing fatigue during operation. The inner side wall of the hand grip grooves 3 is fixedly connected with reflective strips, which make it easier for personnel to find the detector device in dim areas.

[0028] Reference Figures 3-4 The auxiliary mechanism 5 includes a T-slot 51, which is located on the top inner wall of the support 1. T-frames 52 are slidably connected to the left and right inner walls of the T-slot 51. A protective cover 53 is fixedly connected to the right outer wall of the T-frame 52. The slidable connection between the T-frame 52 and the T-slot 51 allows the T-frame 52 to move flexibly on the top of the support 1, thereby adjusting the position of the protective cover 53 and switching between protection and exposure states for the gas detector body 46. A lever 55 is slidably connected to the top inner wall of the T-frame 52. A plate 56 is fixedly connected to the front outer wall of the lever 55, and a telescopic spring 57 is fixedly connected to the rear outer wall of the lever 55. Transparent glass 54 is fixedly connected to both the front and rear inner walls of the protective cover 53. The transparent glass 54 protects the gas detector body 46 without obstructing the operator's view of the displayed data on the detector body, facilitating real-time acquisition of detection information. The lever 55... Silicone pads are fixedly connected to the outer walls on both sides of the device. The silicone pads increase the friction on the surface of the lever 55, making it easier and more stable for the operator to pull the lever 55, thus improving the convenience of operation. The insert plate 56 penetrates the front outer wall of the T-shaped frame 52. Wear-resistant pads are fixedly connected to the side outer wall of the insert plate 56. The wear-resistant pads increase the wear resistance of the insert plate 56, extend its service life, and ensure that the fixing function of the protective cover 53 is stable and reliable during long-term use. The insert plate 56 is snapped into the front inner wall of the T-slot 51. The end of the telescopic spring 57 away from the lever 55 is fixedly connected to the rear inner wall of the T-shaped frame 52. The inner diameter of the protective cover 53 is larger than the length and width of the gas detector body 46. The protective cover 53 contacts the bottom inner wall of the bracket 1. When the protective cover 53 is lowered to protect the gas detector body 46, it contacts the bottom inner wall of the bracket 1, ensuring the stable placement of the protective cover 53 and enhancing the protective effect.

[0029] Working principle: By threadedly connecting the pipe connector 2 to the pipe installation port, the movable plate 44 is pulled to move the limiting rod 45, separating the limiting rod 45 from the adjusting hole 43. Then, when the gas detector body 46 is rotated, the movable pipe 41 rotates, which drives the bent probe 42 to rotate, so that the airflow of the detected pipe is directly facing the bent probe 42, preventing the airflow from being deflected and affecting the accuracy. At the same time, due to the different sizes of the test pipes, the movable pipe 41 is moved up and down by moving the gas detector body 46. The movement of the movable pipe 41 drives the bent probe 42 to move up and down, adjusting the bent probe 42 to a relatively centered position on the test pipe, avoiding the bent probe 42 being too high or too low, which would affect the detection accuracy. At the same time, by pulling the lever 55, the insert plate 56 is moved, separating the insert plate 56 from the T-slot 51. Then, the protective cover 53 is pressed to wrap the gas detector body 46, preventing the gas detector body 46 from being exposed to the outside for a long time and being easily contaminated by external dust.

[0030] 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 pipeline gas detector with a rotatable probe, comprising a support (1) and a pipeline connector (2), characterized in that: The pipe connector (2) is fixedly connected to the bottom outer wall of the bracket (1), the bracket (1) is provided with an adjustment mechanism (4), and the bracket (1) is provided with an auxiliary mechanism (5); The adjustment mechanism (4) includes a movable pipe (41), which is slidably connected to the bottom inner wall of the support (1). A curved probe (42) is fixedly connected to the bottom end of the movable pipe (41). An adjustment hole (43) is provided on the outer side wall of the movable pipe (41). A movable plate (44) is slidably connected to the rear inner wall of the support (1). A limit rod (45) is fixedly connected to the right outer wall of the movable plate (44). A gas detector body (46) is fixedly connected to the top end of the movable pipe (41). A compression spring (47) is fixedly connected to the left outer wall of the movable plate (44).

2. The pipeline gas detector with a rotatable probe according to claim 1, characterized in that: The auxiliary mechanism (5) includes a T-slot (51), which is opened on the top inner wall of the bracket (1). T-frames (52) are slidably connected to the left and right inner walls of the T-slot (51). A protective cover (53) is fixedly connected to the right outer wall of the T-frame (52). A lever (55) is slidably connected to the top inner wall of the T-frame (52). A plug plate (56) is fixedly connected to the front outer wall of the lever (55). A telescopic spring (57) is fixedly connected to the rear outer wall of the lever (55).

3. A pipeline gas detector with a rotatable probe according to claim 1, characterized in that: There are several adjustment holes (43), and several adjustment holes (43) are circumferentially opened on the outer side wall of the movable pipe (41), and the adjustment holes (43) are sequentially and vertically opened on the outer side wall of the movable pipe (41).

4. A pipeline gas detector with a rotatable probe according to claim 1, characterized in that: The movable plate (44) has frosted pads fixedly connected to the outer walls on both sides. The limiting rod (45) passes through the inner wall of one side of the bracket (1). The limiting rod (45) has a steel sleeve fixedly connected to the outer wall of its side.

5. A pipeline gas detector with a rotatable probe according to claim 1, characterized in that: The limiting rod (45) is engaged with the inner side wall of the adjustment hole (43), and the bottom outer wall of the bracket (1) is fixedly connected with a pointing mark (48).

6. A pipeline gas detector with a rotatable probe according to claim 2, characterized in that: The protective cover (53) has transparent glass (54) fixedly connected to the inner walls of both the front and rear sides.

7. A pipeline gas detector with a rotatable probe according to claim 2, characterized in that: Silicone pads are fixedly connected to the outer walls of the left and right sides of the lever (55), and the insert plate (56) penetrates the front outer wall of the T-shaped frame (52).

8. A pipeline gas detector with a rotatable probe according to claim 2, characterized in that: The side outer wall of the insert plate (56) is fixedly connected with a wear-resistant pad, and the insert plate (56) is snapped into the front inner wall of the T-slot (51).

9. A pipeline gas detector with a rotatable probe according to claim 1, characterized in that: The bracket (1) has hand grip grooves (3) on its left and right outer walls, and reflective strips are fixedly connected to the inner side walls of the hand grip grooves (3).

10. A pipeline gas detector with a rotatable probe according to claim 2, characterized in that: The end of the telescopic spring (57) away from the lever (55) is fixedly connected to the rear inner wall of the T-shaped frame (52). The inner diameter of the protective cover (53) is larger than the length and width of the gas detector body (46). The protective cover (53) contacts the bottom inner wall of the bracket (1).