An easy-to-install gas sensor

Abstract

This utility model discloses an easy-to-install gas sensor, relating to the field of gas sensor technology. It includes a gas sensor body with a base threaded to its lower end. A first side-tightening mechanism and a second side-tightening mechanism are fixedly connected to both sides of the base. In this utility model, a spring, after being compressed, generates elastic force. The pawl of the pawl engages with the ratchet tooth, further pushing the plastic strip to slide in the through-groove. The pawl then engages with the next tooth of the ratchet tooth, causing the annular area formed by the base and the plastic strip to gradually shrink until the second side-tightening mechanism is fixed to the outside of the pipe. The first and second side-tightening mechanisms are located on both sides of the gas sensor body. Within a certain range, the gas sensor body can be installed on pipes of different diameters and materials, improving its applicability and making installation more convenient. It also ensures that the gas sensor body is stably installed on the outside of the pipe for leak monitoring.

Description

Technical Field

[0001] This utility model relates to the field of gas sensor technology, and in particular to a gas sensor that is easy to install. Background Technology

[0002] In the fields of petrochemicals, urban gas, and industrial pipeline transportation, pipeline leaks pose a significant threat to safe production and environmental safety. Compared to traditional internal pipeline detection, external pipeline leak monitoring, which does not require interruption of media transportation or damage to the pipeline's structural integrity, is increasingly in demand for use in the maintenance of aging pipeline networks and the monitoring of pipelines transporting high-risk media. As the core component of leak monitoring, the ease of installation, environmental adaptability, and detection reliability of gas sensors directly affect the overall effectiveness of the monitoring system.

[0003] Traditional external gas sensors often use magnetic, snap-on, or clamp-type fixing methods, but their adaptability to different pipe diameters and surface morphologies (smooth metal pipes, insulated pipes, and non-metallic composite pipes) is poor. Magnetic sensors rely on the magnetic conductivity of the pipe material and cannot be used on non-metallic pipes such as plastic and fiberglass. Clamp-type structures require custom-made clamps according to the pipe diameter, and multiple people are needed to adjust the tightness during installation. For pipes installed at heights or buried deep underground (such as heating insulation pipes), the insulation layer needs to be peeled off or excavation work is required, which results in a long construction period and easily damages the pipe's protective layer. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a gas sensor that is easy to install.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a gas sensor that is easy to install, comprising a gas sensor body, a base threadedly connected to the lower end of the gas sensor body, a first side-tightening mechanism and a second side-tightening mechanism fixedly connected to both sides of the base respectively, the first side-tightening mechanism and the second side-tightening mechanism having the same structure and being mirror-symmetrical, the second side-tightening mechanism comprising a metal shaft, a pawl strip, a plastic strip, a reference seat and a spring, the lower end of the reference seat being rotatably connected to one end of the plastic strip, a ratchet tooth being provided on the outer side of the plastic strip, a through groove being provided inside the reference seat, the other end of the ratchet tooth sliding against the through groove, and the pawl at the end of the pawl strip engaging with the ratchet tooth.

[0006] Preferably, a notch is provided on the upper side of the reference seat, one end of the spring is fixedly connected to the inner wall of the notch, and the other end of the spring is fixedly connected to the inclined surface of the other end of the pawl bar.

[0007] Preferably, the metal shaft is rotatably connected at one-third of the position of the pawl bar and away from the end pawl of the pawl bar.

[0008] Preferably, the two ends of the metal shaft are rotatably connected to the inner wall of the notch.

[0009] Preferably, the through groove is arc-shaped, and the notch and the through groove are connected.

[0010] Preferably, the lower end of the reference base is arc-shaped.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the spring generates elastic force after being compressed. This elastic force reacts on the inclined end of the pawl strip, forcing the pawl strip to return to its initial state, that is, the pawl strip pawl locks the ratchet tooth. Since the plastic strip is made of plastic, it can deform. The plastic strip continues to slide in the through groove, and the pawl strip locks the next tooth of the ratchet tooth. Thus, the annular area formed by the reference seat and the plastic strip gradually shrinks until the second side clamping mechanism is fixed on the outside of the pipe. The first side clamping mechanism and the second side clamping mechanism have the same structure and are operated in the same way. The first side clamping mechanism and the second side clamping mechanism are located on both sides of the gas sensor body. Within a certain range, the gas sensor body can be installed on pipes of different diameters and materials, improving the applicability and making the installation more convenient. It also ensures that the gas sensor body is stably installed on the outside of the pipe for leak monitoring.

[0013] 2. In this utility model, the bottom end of the reference base is designed to be arc-shaped to fit the pipe and ensure stable installation. After the plastic strip passes through the through groove, the plastic strip deforms and wraps around the outside of the pipe. The through groove is designed to be arc-shaped so as not to affect the rotation of the pawl strip and to ensure the locking state of the first side tightening mechanism and the second side tightening mechanism. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a gas sensor that is easy to install is provided for this utility model;

[0015] Figure 2 A partial three-dimensional structural diagram of a gas sensor that is easy to install is provided for this utility model;

[0016] Figure 3 A plan view of the second side clamping mechanism in a gas sensor that is easy to install is provided for this utility model;

[0017] Figure 4 This invention presents a three-dimensional structural diagram of the disassembled second side clamping mechanism in a gas sensor that is easy to install.

[0018] Legend: 1. Gas sensor body; 2. First side clamping mechanism; 3. Base; 4. Second side clamping mechanism; 41. Metal shaft; 42. Pawl strip; 43. Racket tooth; 44. Plastic strip; 45. Reference seat; 46. Through groove; 47. Spring; 48. Notch. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a gas sensor that is easy to install, including a gas sensor body 1. The lower end of the gas sensor body 1 is threadedly connected to a base 3. A first side-tightening mechanism 2 and a second side-tightening mechanism 4 are respectively fixedly connected to both sides of the base 3. The first side-tightening mechanism 2 and the second side-tightening mechanism 4 have the same structure and are mirror-symmetrical. The second side-tightening mechanism 4 includes a metal shaft 41, a pawl 42, a plastic strip 44, a reference seat 45, and a spring 47. The lower end of the reference seat 45 is rotatably connected to one end of the plastic strip 44. The outer side of the plastic strip 44... A ratchet 43 is provided on the side, and a through groove 46 is provided inside the reference seat 45. The other end of the ratchet 43 slides against the through groove 46. The pawl at the end of the pawl bar 42 engages with the ratchet 43. A notch 48 is provided on the upper side of the reference seat 45. One end of the spring 47 is fixedly connected to the inner wall of the notch 48, and the other end of the spring 47 is fixedly connected to the inclined surface at the other end of the pawl bar 42. A metal shaft 41 is rotatably connected at one-third of the position of the pawl bar 42 and away from the pawl at the end of the pawl bar 42. Both ends of the metal shaft 41 are rotatably connected to the inner wall of the notch 48.

[0022] The specific settings and functions of this embodiment are described below: A survey is conducted on the pipeline network where the gas sensor needs to be installed, and the installation location is selected. Initially, the end of the plastic strip 44 does not pass through the through groove 46. Holding the handle of the reference base 45, the lower arc-shaped part of the reference base 45 is pressed against the outer wall of the pipeline. After adjusting the angle and position of the gas sensor body 1, the plastic strip 44 is passed through the through groove 46. The plastic strip 44 slides against the through groove 46, and its external ratchet 43 begins to contact the end of the pawl strip 42, lifting the pawl at the end of the pawl strip 42. After being subjected to force, the pawl strip 42 moves in an arc around the metal shaft 41. The pawl end of the pawl strip 42 moves obliquely upward, causing the oblique end of the pawl strip 42 to move obliquely downward, thereby squeezing the spring 47. The spring 47, after being compressed, generates elastic force. This elastic force reacts on the oblique end of the pawl strip 42, forcing the pawl strip 42 to return to its initial state, i.e., the pawl... The pawl 42 engages with the ratchet 43. Since the plastic strip 44 is made of plastic, it can deform. The plastic strip 44 continues to slide in the through groove 46. The pawl 42 engages with the next tooth of the ratchet 43. As a result, the annular area formed by the reference base 45 and the plastic strip 44 gradually shrinks until the second side clamping mechanism 4 is fixed on the outside of the pipe. The first side clamping mechanism 2 and the second side clamping mechanism 4 have the same structure and are operated in the same way. The first side clamping mechanism 2 and the second side clamping mechanism 4 are located on both sides of the gas sensor body 1. Within a certain range, the gas sensor body 1 can be installed on pipes of different diameters and materials, which improves the applicability and makes the installation more convenient. It also ensures that the gas sensor body 1 is stably installed on the outside of the pipe for leak monitoring. The lower end of the gas sensor body 1 is screwed into the base 3 by threads, which facilitates partial replacement later and saves costs.

[0023] Example 2: Figure 1 - Figure 4 As shown, the through groove 46 is arc-shaped, the notch 48 is connected to the through groove 46, the lower end of the reference seat 45 is arc-shaped, and the lower end of the reference seat 45 is rotatably connected to one end of the plastic strip 44.

[0024] The overall effect of this embodiment is that, from the perspective of thickness, the plastic strip 44 is divided into a gradient section and a smooth section. The maximum end of the gradient section is rotatably connected to the lowest end of the reference seat 45. The ratchet 43 is set in the smooth section. The lowest end of the reference seat 45 is designed to be arc-shaped to fit the pipe and ensure stable installation. After passing through the through groove 46, the plastic strip 44 deforms and wraps around the outside of the pipe. The through groove 46 is designed to be arc-shaped so as not to affect the rotation of the pawl strip 42 and to ensure the locking state of the first side tightening mechanism 2 and the second side tightening mechanism 4.

[0025] The usage and working principle of this device are as follows: Survey the pipeline network where the gas sensor needs to be installed and select the installation location. Initially, the end of the plastic strip 44 does not pass through the through groove 46. Hold the handle of the reference base 45 and place the arc-shaped part of the lower end of the reference base 45 against the outer wall of the pipeline. After adjusting the angle and position of the gas sensor body 1, pass the plastic strip 44 through the through groove 46. The plastic strip 44 slides against the through groove 46, and its external ratchet 43 begins to contact the end of the pawl strip 42, pushing up the pawl at the end of the pawl strip 42. After being subjected to force, the pawl strip 42 moves in an arc around the metal shaft 41. The pawl end of the pawl strip 42 moves obliquely upward, causing the oblique end of the pawl strip 42 to move obliquely downward, thereby compressing the spring 47. When the spring 47 is compressed, it generates elastic force, which reacts on the inclined end of the pawl strip 42, forcing the pawl strip 42 to return to its initial state, that is, the pawl strip 42 pawl locks the ratchet tooth 43. Since the plastic strip 44 is made of plastic, it can deform. Continue to push the plastic strip 44 to slide in the through groove 46, and the pawl strip 42 locks the next tooth of the ratchet tooth 43. Thus, the annular area formed by the reference seat 45 and the plastic strip 44 gradually shrinks until the second side clamping mechanism 4 is fixed on the outside of the pipe. The first side clamping mechanism 2 and the second side clamping mechanism 4 have the same structure and are operated in the same way. Under the double limiting action of the first side clamping mechanism 2 and the second side clamping mechanism 4, the gas sensor body 1 is stably installed on the outside of the pipe for leak monitoring.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A gas sensor that is easy to install, comprising a gas sensor body (1), characterized in that: The lower end of the gas sensor body (1) is threadedly connected to a base (3). The base (3) is fixedly connected to a first side clamping mechanism (2) and a second side clamping mechanism (4) on both sides. The first side clamping mechanism (2) and the second side clamping mechanism (4) have the same structure and are mirror symmetrical. The second side clamping mechanism (4) includes a metal shaft (41), a pawl bar (42), a plastic strip (44), a reference seat (45), and a spring (47). The lower end of the reference seat (45) is rotatably connected to one end of the plastic strip (44). A ratchet (43) is provided on the outer side of the plastic strip (44). A through groove (46) is provided inside the reference seat (45). The other end of the ratchet (43) slides against the through groove (46). The pawl at the end of the pawl bar (42) engages with the ratchet (43).

2. The gas sensor that is easy to install according to claim 1, characterized in that: A notch (48) is provided on the upper side of the reference base (45). One end of the spring (47) is fixedly connected to the inner wall of the notch (48), and the other end of the spring (47) is fixedly connected to the inclined surface of the other end of the pawl bar (42).

3. The gas sensor that is easy to install according to claim 2, characterized in that: The metal shaft (41) is rotatably connected to one-third of the position of the pawl bar (42) and away from the end pawl of the pawl bar (42).

4. A gas sensor that is easy to install according to claim 3, characterized in that: The two ends of the metal shaft (41) are rotatably connected to the inner wall of the notch (48).

5. A gas sensor that is easy to install according to claim 4, characterized in that: The through groove (46) is arc-shaped, and the notch (48) is connected to the through groove (46).

6. A gas sensor that is easy to install according to claim 5, characterized in that: The lower end of the reference base (45) is arc-shaped.

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