Anti-loosening device for use and installation of sensor

Abstract

The utility model relates to the technical field of sensor installation, and discloses an anti-loosening device for use and installation of a sensor, which comprises two groups of probe rod bases, gas sensors are movably installed at the tops of the two groups of probe rod bases, and the two groups of gas sensors are respectively installed on the two groups of probe rod bases in a welding and inserting mode. And the outer surface of one of the two groups of gas sensors is sleeved with a thickened sensor protection outer cover. According to the utility model, the gas sensor is naturally compressed by skillfully utilizing the elastic force of the columnar stainless steel bullet, and the gas sensor does not need to be fastened by manual welding and other technological means; the failure risk that four corners of the gas sensor in the diffusion type probe are not in contact well after the gas sensor is subjected to external force and the potential quality hazard caused by the fact that secondary welding cannot be effectively recognized in the welding process are reduced to a great extent, and manpower and material resource cost of production is saved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of sensor installation, in particular to a sensor installation anti-loosening device. Background Art

[0002] At present, gas sensors are fixed by welding any one pin to prevent the gas sensor from loosening due to external factors, or by plugging and unplugging. Gas sensors can be divided into diffusion type and pump suction type.

[0003] When the pump-suction probe is in use, current flows through the gas sensor pins when the product is working normally. If one pin is soldered and the product is affected by external forces, the other three pins of the gas sensor may become suspended. If the gas sensor operates in this state for a long time, the service life of the gas sensor will be greatly shortened.

[0004] Diffusion sensors add a welding process during the production process, which increases manpower and material costs; if employees sometimes perform welding operations improperly, it will also increase the risk of product failure. Utility Model Content

[0005] The purpose of the utility model is to provide a sensor installation anti-loosening device to solve the problem of insufficient use of the probe structure installation structure proposed in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution, which discloses a sensor installation anti-loosening device, comprising: two sets of probe bases, the tops of the two sets of probe bases are movably mounted with gas sensors, and the two sets of gas sensors are respectively mounted on the two sets of probe bases by welding and plugging, the outer surface of one of the two sets of gas sensors is sleeved with a thickened sensor protection cover, and the thickened sensor protection cover is threadedly connected to the outer surface of the probe base;

[0007] The outer surface of the other gas sensor in the two groups of gas sensors is sleeved with a visual sensor protection cover, and the top of the inner wall of the visual sensor protection cover is fixedly installed with a white waterproof and breathable membrane;

[0008] The tops of the two groups of probe rod bases are movably installed with columnar stainless steel springs and tower-type stainless steel springs, and the columnar stainless steel springs and tower-type stainless steel springs are respectively sleeved on the outer surface of the gas sensor. The columnar stainless steel springs are located inside the thickened sensor protective cover, and the tower-type stainless steel springs are located inside the visual sensor protective cover.

[0009] As a preferred technical solution of the present invention, a first O-shaped sealing ring is fixedly installed on the bottom of the visual sensor protection cover, and a second O-shaped sealing ring is fixedly installed on the top of the visual sensor protection cover.

[0010] As a preferred technical solution of the present invention, a Luer metal connector is provided on the top of the second O-ring, and the visual sensor protection cover and the second O-ring are both threadedly connected to the outer surface of the Luer metal connector.

[0011] As a preferred technical solution of the present invention, a PCB small circular plate assembly is provided at the bottom of the gas sensor, and the PCB small circular plate assembly is engaged and connected to the inside of the probe base.

[0012] As an optimal technical solution of the utility model, it includes a diffusion probe, and the pump suction probe includes: a probe base, a gas sensor, a thickened sensor protection cover, a probe base, a PCB small circular plate assembly and a cylindrical stainless steel spring.

[0013] As an optimal technical solution of the utility model, it includes a pump-suction probe, and the diffusion probe includes: a probe base, a gas sensor, a visual sensor protective cover, a PCB small circular plate assembly and a tower-type stainless steel spring, a first O-ring, a second O-ring, a Luer metal connector and a white waterproof and breathable membrane.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model cleverly uses the elastic force of the columnar stainless steel spring to naturally compress the gas sensor, eliminating the need for manual welding or other process methods to tighten the gas sensor. This greatly reduces the failure risk of the gas sensor in the diffusion probe due to poor contact of the four corners after being subjected to external force, and the inability to effectively identify the quality risks of the primary welding caused by the secondary welding during the welding process, thereby saving production manpower and material costs to a certain extent.

[0016] 2. The utility model cleverly uses the elastic force of the tower-shaped stainless steel spring to naturally compress the gas sensor, thereby solving the failure problem and risk caused by the loosening and poor contact of the gas sensor in the pump-suction probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural stereogram of the pump-suction probe of the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the diffusion probe structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the second form structure of the pump-suction probe of the utility model;

[0020] Figure 4 This is a schematic diagram of the second form structure of the diffusion probe of the present utility model;

[0021] Figure 5 This is a schematic cross-sectional view of the structure of the protective cover of the visual sensor of the present invention;

[0022] Figure 6 This is a schematic cross-sectional view of the structure of the thickened sensor protection cover of the present invention.

[0023] In the figure: 1. Probe base; 2. Gas sensor; 3. PCB small circular plate assembly; 4. Columnar stainless steel spring; 5. Thickened sensor protection cover; 6. Visual sensor protection cover; 7. First O-ring; 8. Second O-ring; 9. Luer metal connector; 10. White waterproof and breathable membrane; 11. Tower-type stainless steel spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , a sensor uses an anti-loosening device installed:

[0026] It comprises: two groups of probe rod bases 1: gas sensors 2 are movably installed on the tops of the two groups of probe rod bases 1, and the two groups of gas sensors 2 are installed on the two groups of probe rod bases 1 by welding and plugging respectively; the outer surface of one group of gas sensors 2 in the two groups of gas sensors 2 is sleeved with a thickened sensor protection cover 5, and the thickened sensor protection cover 5 is threadedly connected to the outer surface of the probe rod base 1; the outer surface of the other group of gas sensors 2 in the two groups of gas sensors 2 is sleeved with a visual sensor protection cover 6, and a white waterproof breathable membrane 10 is fixedly installed on the top of the inner wall of the visual sensor protection cover 6; a columnar stainless steel spring 4 and a tower-shaped stainless steel spring 11 are movably installed on the tops of the two groups of probe rod bases 1, and the columnar stainless steel spring 4 and the tower-shaped stainless steel spring 11 are respectively sleeved on the outer surfaces of the gas sensors 2, the columnar stainless steel spring 4 is located inside the thickened sensor protection cover 5, and the tower-shaped stainless steel spring 11 is located inside the visual sensor protection cover 6;

[0027] The gas sensor 2 in the pump-suction probe is installed by plugging, while the gas sensor 2 in the diffusion probe is installed by welding.

[0028] The probe base 1 is designed to accommodate different spring structures and the outer surface structure of the gas sensor 2, allowing it to be used as a pump-suction probe and a diffusion probe. A cylindrical stainless steel spring 4 is placed inside a thickened sensor protection cover 5 on the gas sensor 2 in the pump-suction probe. The compressed spring 4 exerts a downward pressure on the gas sensor 2, ensuring good contact and uniform force on its four corners. Furthermore, the pins of the gas sensor 2 do not need to be welded.

[0029] A tower-shaped stainless steel spring 11 is placed inside the visual sensor protection cover 6 of the gas sensor 2 in the diffusion probe. The gas sensor 2 is naturally pressed by the rebound force after the elastic force of the tower-shaped stainless steel spring 11 is compressed, thereby greatly avoiding the risk of the sensor loosening.

[0030] See also Figure 5 and Figure 6 ;

[0031] A first O-ring 7 is fixedly mounted on the bottom of the visual sensor protection cover 6, a second O-ring 8 is fixedly mounted on the top of the visual sensor protection cover 6, a Luer metal connector 9 is provided on the top of the second O-ring 8, and both the visual sensor protection cover 6 and the second O-ring 8 are threadedly connected to the outer surface of the Luer metal connector 9;

[0032] By disposing the first O-ring 7 and the second O-ring 8 , the sealing performance of the upper and lower connections of the visual sensor protection cover 6 can be enhanced, thereby assisting the installation of the visual sensor protection cover 6 to protect the internal gas sensor 2 .

[0033] A PCB small circular plate assembly 3 is provided at the bottom of the gas sensor 2, and the PCB small circular plate assembly 3 is embedded and connected to the inside of the probe base 1;

[0034] The PCB small circular plate assembly 3 is provided as a connecting structure between the gas sensor 2 and the probe base 1 to assist in the installation of the gas sensor 2.

[0035] See also Figure 3 、 Figure 4 、 Figure 5 and Figure 6 :

[0036] The diffusion probe includes: a probe base 1, a gas sensor 2, a thickened sensor protection cover 5, a probe base 1, a PCB small circular plate assembly 3, and a cylindrical stainless steel spring 4; the pump-suction probe includes: a probe base 1, a gas sensor 2, a visual sensor protection cover 6, a PCB small circular plate assembly 3, a tower-shaped stainless steel spring 11, a first O-ring 7, a second O-ring 8, a Luer metal connector 9, and a white waterproof and breathable membrane 10.

[0037] The difference between the pump-suction probe and the diffusion probe is due to their different composition structures. The internal thickened sensor protection cover 5 and the visual sensor protection cover 6 are different in structure, and the anti-loosening spring structure used inside is different. A columnar stainless steel spring 4 and a tower stainless steel spring 11 structure are used to protect the gas sensor 2 respectively.

[0038] Working principle;

[0039] The diffusion probe is placed in a potentially leaking methane or other fuel gas environment. The probe is then moved manually or by natural means, allowing the gas surrounding the visual sensor protective cover 6 to contact the gas sensor 2 inside the cover through the air holes. Software is then used to calculate and identify the gas composition and concentration. During this process, the gas sensor 2 must maintain good contact, otherwise it will not function.

[0040] The pump-suction probe is a product where the probe part of the product is placed in a gas such as methane that may leak. The gas around the probe is quickly sucked into the thickened sensor protection cover 5 by pumping, so that it contacts the gas sensor 2. The software then calculates and identifies the contact gas composition and concentration. During this process, the gas sensor 2 must maintain good contact status, otherwise it will not work.

[0041] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A sensor installation anti-loosening device, comprising: A diffusion probe, a pump-suction probe, and two groups of probe bases (1), characterized in that: a gas sensor (2) is movably mounted on the top of each of the two groups of probe bases (1), and the two groups of gas sensors (2) are mounted on the two groups of probe bases (1) by welding and plugging, respectively; a thickened sensor protection cover (5) is sleeved on the outer surface of one of the two groups of gas sensors (2), and the thickened sensor protection cover (5) is threadedly connected to the outer surface of the probe base (1); The outer surface of the other gas sensor (2) in the two groups of gas sensors (2) is sleeved with a visual sensor protection cover (6), and a white waterproof breathable membrane (10) is fixedly installed on the top of the inner wall of the visual sensor protection cover (6); The tops of the two groups of probe bases (1) are movably mounted with a columnar stainless steel spring (4) and a tower-shaped stainless steel spring (11), and the columnar stainless steel spring (4) and the tower-shaped stainless steel spring (11) are respectively sleeved on the outer surface of the gas sensor (2), the columnar stainless steel spring (4) is located inside the thickened sensor protection cover (5), and the tower-shaped stainless steel spring (11) is located inside the visual sensor protection cover (6).

2. The sensor installation anti-loosening device according to claim 1, characterized in that: A first O-shaped sealing ring (7) is fixedly mounted on the bottom of the visual sensor protective cover (6), and a second O-shaped sealing ring (8) is fixedly mounted on the top of the visual sensor protective cover (6).

3. The sensor installation anti-loosening device according to claim 2, characterized in that: A Luer metal connector (9) is provided on the top of the second O-ring (8), and the visual sensor protection cover (6) and the second O-ring (8) are both threadedly connected to the outer surface of the Luer metal connector (9).

4. The sensor installation anti-loosening device according to claim 1, characterized in that: A PCB small circular plate assembly (3) is provided at the bottom of the gas sensor (2), and the PCB small circular plate assembly (3) is engaged and connected to the interior of the probe base (1).

5. The sensor installation anti-loosening device according to claim 1, characterized in that: The diffusion probe comprises a probe base (1), a gas sensor (2), a thickened sensor protection cover (5), a probe base (1), a PCB small circular plate assembly (3) and a columnar stainless steel spring (4).

6. The sensor installation anti-loosening device according to claim 1, characterized in that: The pump-suction probe comprises a probe base (1), a gas sensor (2), a visual sensor protective cover (6), a PCB small circular plate assembly (3), a tower-shaped stainless steel spring (11), a first O-type sealing ring (7), a second O-type sealing ring (8), a Luer metal connector (9) and a white waterproof breathable membrane (10).

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