A corrosion-resistant sensor housing for toxic gases

Abstract

This invention provides a corrosion-resistant sensor enclosure for toxic gases, belonging to the field of sensor packaging technology. The enclosure includes a sensor body, an inner layer, a connector, and an outer layer. The inner and outer layers are sequentially fitted around the sensor body from the inside out, with the outer layer covering the inner layer. The outer layer has a cuboid structure. The inner layer includes a first upper shell and a first lower shell, and the outer layer includes a second upper shell and a second lower shell. The first upper shell and the first lower shell are connected by threads, and the second upper shell and the second lower shell are fixedly connected by the connector. The inner layer prevents the sensor body from contacting external toxic gases, while the outer layer provides additional protection and structural strength to the inner layer. This invention solves the problem of corrosion caused by easy contact with toxic gases in traditional sensors.

Description

Technical Field

[0001] This utility model belongs to the field of sensor packaging technology, and more specifically, relates to a corrosion-resistant sensor packaging shell for toxic gases. Background Technology

[0002] The dual drivers of industrialization and urbanization, while bringing prosperity and convenience to human society, have also increasingly highlighted the risk of toxic gas leaks. Such accidents not only directly threaten human lives but also severely damage the ecological environment upon which we depend. Real-time and accurate monitoring of toxic gases is crucial in fields such as petrochemicals, metallurgy, mining, and environmental protection. However, these industrial environments often involve extreme conditions such as high temperature, high humidity, and strong corrosion, posing serious challenges to the stability and lifespan of sensors.

[0003] Traditional sensor packaging materials are unable to meet the requirements for long-term corrosion resistance, leading to sensor failure and data distortion. This not only fails to provide reliable early warnings but may also mislead decision-making, causing more serious consequences, such as delaying rescue time, causing wider environmental pollution, or even triggering safety accidents. Utility Model Content

[0004] In view of this, the present invention provides a corrosion-resistant sensor packaging shell for toxic gases, which can solve the problem of corrosion caused by easy contact with toxic gases in traditional sensors.

[0005] This utility model is implemented as follows: This utility model provides a corrosion-resistant sensor enclosure for toxic gases, comprising a sensor body, an inner layer, a connector, and an outer layer. The inner and outer layers are sequentially fitted onto the outside of the sensor body from the inside out, with the outer layer fitted over the inner layer. The outer layer has a cuboid structure. The inner layer includes a first upper shell and a first lower shell, and the outer layer includes a second upper shell and a second lower shell. The first upper shell and the first lower shell are connected by threads, and the second upper shell and the second lower shell are fixedly connected by the connector. The inner layer is used to prevent the sensor body from contacting external toxic gases, and the outer layer is used to provide additional protection and structural strength for the inner layer.

[0006] Based on the above technical solution, the corrosion-resistant sensor packaging shell for toxic gases of this utility model can be further improved as follows: The inner layer is made of polytetrafluoroethylene.

[0007] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: using PTFE with extremely strong corrosion resistance can avoid the sensor body from directly contacting toxic gases, ensuring the sealing and corrosion resistance of the sensor probe.

[0008] Furthermore, the outer layer is made of high-strength engineering plastics.

[0009] The beneficial effect of adopting the above-mentioned improvement scheme is that the outer layer provides mechanical protection.

[0010] Furthermore, the outer surface is coated with a nano-corrosion-resistant coating.

[0011] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the nano-coating can significantly improve the material's resistance to various corrosive media, extending the product's service life. The nano-coating can improve surface hardness and wear resistance, reducing the risk of scratches or damage. The nano-coating can improve electrical insulation performance, further protecting the internal components of the sensor.

[0012] Furthermore, both the first upper shell and the first lower shell are cylindrical structures. An extension plate is fixed to the bottom of the first upper shell. The extension plate has an annular structure and external threads on its outer side. Internal threads are provided on the inner wall of the first lower shell. The extension plate is adapted to the first lower shell.

[0013] The beneficial effects of adopting the above-mentioned improved solution are as follows: the combination of threaded connection and sealing ring can effectively prevent gas and liquid leakage, ensuring the reliability of the sensor in harsh environments. The robust threaded connection mechanism can reduce the risk of loosening caused by vibration and enhance the overall stability of the equipment.

[0014] Furthermore, an O-ring is provided at the connection between the extension plate and the first upper housing.

[0015] Furthermore, foam rubber is used to fill the space between the inner and outer layers.

[0016] The beneficial effects of adopting the above-mentioned improvement scheme are: foam rubber is used to prevent the sensor from being impacted.

[0017] Furthermore, the connector includes a sliding groove, a locking block, a recess, and a protrusion. The sliding groove includes a first sliding groove and a second sliding groove, and the locking block includes a first locking block and a second locking block. The sliding groove has an L-shaped structure and is disposed on the lower bottom surface of the second upper housing. The locking block is fixedly connected to the upper top surface of the second lower housing, and the locking block is adapted to the sliding groove. The recess is disposed on the lower bottom surface of the second upper housing, and the protrusion is fixedly connected to the upper top surface of the second lower housing. The recess is adapted to the protrusion.

[0018] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the connector design allows for assembly only, not disassembly, ensuring a tighter connection and reducing the risk of gas leakage. The connectors are less prone to loosening or damage during transportation and use, thus protecting internal components. It prevents users from arbitrarily opening the outer layer, reducing potential safety hazards caused by misoperation, especially in environments with toxic gases.

[0019] Furthermore, the first slide is connected to the second slide, and the first locking block is fixedly connected to the second locking block. The first locking block has a cuboid structure, and the second locking block has an obtuse triangular structure.

[0020] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the triangular structure can lock more effectively, improve the stability of the connector during use, and reduce the risk of loosening. When force is applied, the inclined surface of the triangle can more effectively resist the separation force, thereby keeping the snap-fit ​​tightly fixed, while the planar structure may slide to some extent.

[0021] Furthermore, there are two slides and two slides, which are symmetrically distributed, and two locking blocks are symmetrically distributed; the minimum straight-line distance between the two first locking blocks is the same as the minimum proximity distance between the two first slides; the first locking blocks are made of rigid elastic plastic.

[0022] Compared with existing technologies, the beneficial effects of the corrosion-resistant sensor packaging shell for toxic gases provided by this utility model are: 1. The outer layer can buffer external shocks and vibrations, protect the sensitive internal sensor components, and improve the reliability and stability of the sensor.

[0023] 2. It eliminates the need for the entire housing to be made of expensive corrosion-resistant materials. Using only a corrosion-resistant inner layer and a lower-cost structural material for the outer layer achieves overall protection, reducing manufacturing costs. Simultaneously, it provides good mechanical strength, protecting the internal sensors from external physical damage. The combined design of the inner and outer layers ensures a better seal, further preventing the leakage of toxic gases.

[0024] 3. The connector design eliminates the need for screws or other complex tools, allowing for quick assembly and improving work efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A cross-sectional view of a corrosion-resistant sensor housing for a toxic gas. Figure 2 This is a schematic diagram of the outer layer of a corrosion-resistant sensor enclosure for a toxic gas. The attached diagram lists the components represented by each number as follows: 10. Sensor body; 20. Inner layer; 21. First upper housing; 22. First lower housing; 30. Connector; 31. Slide groove; 311. First slide groove; 312. Second slide groove; 32. Locking block; 321. First locking block; 322. Second locking block; 33. Groove; 34. Protrusion; 40. Outer layer; 41. Second upper housing; 42. Second lower housing. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0028] like Figure 1-2 The image shows an embodiment of a corrosion-resistant sensor enclosure for toxic gases provided by this utility model. In this embodiment, it includes a sensor body 10, an inner layer 20, a connector 30, and an outer layer 40. The inner layer 20 and the outer layer 40 are sequentially fitted onto the outside of the sensor body 10 from the inside out. The outer layer 40 is fitted over the inner layer 20 and has a cuboid structure. The inner layer 20 includes a first upper shell 21 and a first lower shell 22. The outer layer 40 includes a second upper shell 41 and a second lower shell 42. The first upper shell 21 and the first lower shell 22 are connected by threads, and the second upper shell 41 and the second lower shell 42 are fixedly connected by the connector 30. The inner layer 20 is used to prevent the sensor body 10 from contacting external toxic gases, and the outer layer 40 is used to provide additional protection and structural strength for the inner layer 20.

[0029] In use, first insert the selected sensor body 10 into the slot of the first lower housing 22. A sealing ring is fitted onto the extension plate of the first upper housing 21. Tighten the first upper housing 21 and the first lower housing 22 with threads and press the sealing ring to ensure a tight seal. Place the inner layer 20 inside the outer layer 40 and fill it with foam rubber for fixation. Align the sliding groove 31 with the locking block 32 and the groove 33 with the protrusion 34 to achieve the splicing of the second upper housing 41 and the second lower housing 42.

[0030] Due to the presence of the second locking block 322, the slide groove 31 undergoes elastic deformation upon insertion, changing from two parallel linear structures to a figure-eight shape. When the second locking block 322 engages at the intersection of the second slide groove 312 and the first slide groove 311, the first locking block 321 returns to its parallel state. At this point, the second upper housing 41 and the second lower housing 42 are fully connected and cannot be disassembled after installation.

[0031] In the above technical solution, the inner layer 20 is made of polytetrafluoroethylene.

[0032] Furthermore, in the above technical solution, the outer layer 40 is made of high-strength engineering plastic.

[0033] Furthermore, in the above technical solution, the surface of the outer layer 40 is coated with a nano-corrosion resistant coating.

[0034] Furthermore, in the above technical solution, both the first upper shell 21 and the first lower shell 22 are cylindrical structures. An extension plate is fixed at the bottom of the first upper shell 21. The extension plate has an annular structure and external threads are provided on the outer side of the extension plate. Internal threads are provided on the inner wall of the first lower shell 22. The extension plate is adapted to the first lower shell 22.

[0035] Furthermore, in the above technical solution, an O-ring is provided at the connection between the extension plate and the first upper housing 21.

[0036] Furthermore, in the above technical solution, foam rubber is filled between the inner layer 20 and the outer layer 40.

[0037] Furthermore, in the above technical solution, the connector 30 includes a sliding groove 31, a locking block 32, a groove 33, and a protrusion 34. The sliding groove 31 includes a first sliding groove 311 and a second sliding groove 312. The locking block 32 includes a first locking block 321 and a second locking block 322. The sliding groove 31 has an L-shaped structure and is disposed on the lower bottom surface of the second upper housing 41. The locking block 32 is fixedly connected to the upper top surface of the second lower housing 42, and the locking block 32 is adapted to the sliding groove 31. The groove 33 is disposed on the lower bottom surface of the second upper housing 41, and the protrusion 34 is fixedly connected to the upper top surface of the second lower housing 42, and the groove 33 is adapted to the protrusion 34.

[0038] Furthermore, in the above technical solution, the first slide groove 311 is connected to the second slide groove 312, the first locking block 321 is fixedly connected to the second locking block 322, the first locking block 321 is a cuboid structure, and the second locking block 322 is an obtuse triangular structure.

[0039] Furthermore, in the above technical solution, there are two slides 31 and two first locking blocks 32, which are symmetrically distributed. The minimum straight-line distance between the two first locking blocks 321 is the same as the minimum proximity distance between the two first slides 311. The first locking blocks 321 are made of rigid elastic plastic.

[0040] In use, first insert the selected sensor body 10 into the slot of the first lower housing 22. A sealing ring is fitted onto the extension plate of the first upper housing 21. Tighten the first upper housing 21 and the first lower housing 22 with threads and press the sealing ring to ensure a tight seal. Place the inner layer 20 inside the outer layer 40 and fill it with foam rubber for fixation. Align the sliding groove 31 with the locking block 32 and the groove 33 with the protrusion 34 to achieve the splicing of the second upper housing 41 and the second lower housing 42.

[0041] Due to the presence of the second locking block 322, the slide groove 31 undergoes elastic deformation upon insertion, changing from two parallel linear structures to a figure-eight shape. When the second locking block 322 engages at the intersection of the second slide groove 312 and the first slide groove 311, the first locking block 321 returns to its parallel state. At this point, the second upper housing 41 and the second lower housing 42 are fully connected and cannot be disassembled after installation. Specifically, the principle of this invention is as follows: the entire device is designed to provide comprehensive protection for the sensor, including gas isolation, mechanical strength, and corrosion resistance, to ensure reliable operation in harsh environments. The main function of the inner layer is to prevent the infiltration of toxic gases, typically employing corrosion-resistant materials or a sealed design to ensure the sensor's operational stability in harsh environments. The outer layer provides mechanical strength and structural support, resisting external impacts and pressures, protecting the inner layer and the sensor from damage.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A corrosion-resistant sensor package for toxic gases, characterized by The sensor body comprises an inner layer, a connector, and an outer layer. The inner and outer layers are sequentially fitted around the sensor body from the inside out, with the outer layer fitted over the inner layer. The outer layer has a cuboid structure. The inner layer includes a first upper housing and a first lower housing, and the outer layer includes a second upper housing and a second lower housing. The first upper housing and the first lower housing are connected by threads, and the second upper housing and the second lower housing are fixedly connected by the connector. The inner layer is used to prevent the sensor body from contacting external toxic gases, and the outer layer is used to provide additional protection and structural strength to the inner layer.

2. A corrosion-resistant sensor package for toxic gases according to claim 1, characterized in that, The inner layer is made of polytetrafluoroethylene.

3. A corrosion-resistant sensor package for toxic gases according to claim 2, wherein The outer layer is made of high-strength engineering plastic.

4. A corrosion-resistant sensor package for toxic gases according to claim 3, wherein The outer surface is coated with a nano-corrosion-resistant coating.

5. A corrosion-resistant sensor package for toxic gases according to claim 4, wherein Both the first upper shell and the first lower shell are cylindrical structures. An extension plate is fixed to the bottom of the first upper shell. The extension plate has a ring structure and external threads on the outside. The inner wall of the first lower shell has internal threads. The extension plate is adapted to the first lower shell.

6. A corrosion-resistant sensor package for toxic gases according to claim 5, wherein An O-ring is provided at the connection between the extension plate and the first upper housing.

7. A corrosion-resistant sensor package for toxic gases according to claim 6, characterized in that, Foam rubber is used to fill the space between the inner and outer layers.

8. A corrosion-resistant sensor package for toxic gases according to claim 7, characterized in that, The connector includes a sliding groove, a locking block, a recess, and a protrusion. The sliding groove includes a first sliding groove and a second sliding groove. The locking block includes a first locking block and a second locking block. The sliding groove has an L-shaped structure and is located on the bottom surface of the second upper housing. The locking block is fixedly connected to the top surface of the second lower housing and is adapted to the sliding groove. The recess is located on the bottom surface of the second upper housing, and the protrusion is fixedly connected to the top surface of the second lower housing and is adapted to the protrusion.

9. A corrosion-resistant sensor package for toxic gases according to claim 8, characterized in that, The first slide is connected to the second slide, and the first locking block is fixedly connected to the second locking block. The first locking block has a cuboid structure, and the second locking block has an obtuse triangular structure.

10. A corrosion-resistant sensor package for toxic gases according to claim 9, characterized in that, There are two slides and two slides, which are symmetrically distributed, and two locking blocks are symmetrically distributed; the minimum straight-line distance between the two first locking blocks is the same as the minimum adjacent distance between the two first slides; the first locking blocks are made of rigid elastic plastic.

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