A marine gas detector housing and a marine gas detector

Abstract

This utility model provides a marine gas detector housing and a marine gas detector, relating to the field of detection equipment technology. The housing includes a base, an upper shell, and a sealing ring. The surface of the base facing the upper shell has a circumferentially surrounding groove. The upper shell is used to mount the base to form a cavity structure for accommodating the marine gas detector body. The upper shell includes a first shell, which includes a side wall and a top cover. The side wall is perpendicular to the top cover, and the end of the side wall away from the top cover has a flange that engages with the groove. The side wall has a first through hole for at least a portion of the marine gas detector body to extend out and a second through hole corresponding to the gas sensing part of the marine gas detector body. The sealing ring is embedded in the first through hole, and a flow guiding structure corresponding to the second through hole is provided on the inner side of the side wall. The surface of the flow guiding structure is coated with a hydrophobic coating. This utility model can effectively protect the gas detector inside the ship's cabin.

Description

Technical Field

[0001] This utility model relates to the field of detection equipment technology, and more specifically, to a marine gas detector housing and a marine gas detector. Background Technology

[0002] Gas detectors are widely used devices in various industrial environments to monitor the presence and concentration of specific gases. They are crucial for workplace safety, especially in environments where there may be leaks of toxic or flammable gases. Traditionally, these detectors have been designed for various scenarios, such as chemical plants, mines, and laboratories. By accurately measuring the composition and concentration of gases in the air, gas detectors can issue timely alerts, reminding workers to take necessary safety measures, thereby effectively preventing potential hazards.

[0003] Existing gas detectors have certain limitations when dealing with the complex environment inside ship cabins. The extremely high humidity inside ship cabins easily leads to condensation, which can seep into the gas detector, causing short circuits or other electrical malfunctions. Furthermore, the high salinity of the sea air can easily form salt spray inside the cabin, posing a corrosive threat to the metal components and electronic parts of the gas detector. Utility Model Content

[0004] The problem this invention addresses is how to effectively protect gas detectors inside a ship's cabin.

[0005] To address the aforementioned problems, in a first aspect, this utility model provides a marine gas detector housing, comprising a base, an upper shell, and a sealing ring. The surface of the base facing the upper shell has a circumferentially surrounding groove. The upper shell is mounted on the base to form a cavity structure for accommodating the marine gas detector body. The upper shell includes a first housing, which includes a side wall and a top cover. The side wall is perpendicular to the top cover. One end of the side wall away from the top cover has a flange that engages with the groove. The side wall has a first through hole for at least a portion of the marine gas detector body to extend out and a second through hole corresponding to the gas sensing portion of the marine gas detector body. The sealing ring is embedded in the first through hole. The inner side of the side wall has a flow guiding structure corresponding to the second through hole, and the surface of the flow guiding structure is coated with a hydrophobic coating.

[0006] Optionally, the upper shell further includes a second shell, which is formed by extending a portion of the upper cover in a direction away from the sidewall.

[0007] Optionally, the marine gas detector housing further includes a lampshade and a display cover, the side wall includes a first side wall, the top cover and the first side wall are connected by a first opening, the lampshade is embedded in the first opening, the top of the second housing is provided with a second opening, and the display cover is embedded in the second opening.

[0008] Optionally, the marine gas detector housing further includes a button device, which includes a button, a support base, and a connecting rod structure. One end of the button passes through the first through hole, and the sealing ring is disposed between the button and the first through hole. The other end of the button is connected to one end of the connecting rod structure, and the other end of the connecting rod structure is used to abut against the power contact of the marine gas detector body. The top surface of the support base is connected to the top cover, and the bottom surface of the support base has a sliding groove, in which the connecting rod structure is disposed.

[0009] Optionally, the linkage structure includes a first horizontal bar, a second horizontal bar, and a first vertical bar. The first horizontal bar and the second horizontal bar are parallel and vertically spaced apart. The first horizontal bar is fixedly connected to the second horizontal bar through the first vertical bar. The support base includes a first component and a second component. The top surface of the first component is connected to the upper cover. The bottom surface of the first component has the sliding groove. One end of the sliding groove is provided with an elastic mechanism. The first horizontal bar is disposed in the sliding groove. One end of the first horizontal bar is connected to the button, and the other end of the first horizontal bar is connected to the elastic mechanism. The second component is perpendicular to the first component. The second component has a fourth through hole, and the second horizontal bar passes through the fourth through hole.

[0010] Optionally, one end of the antenna and / or grounding device of the marine gas detector body passes through the first through hole, and the sealing ring is disposed between the antenna and the first through hole, and / or between the grounding device and the first through hole.

[0011] Optionally, the sidewall includes a second sidewall, which has a plurality of strip-shaped and parallel second through holes. The inner side of the second sidewall is provided with a plurality of corresponding flow guiding structures, each flow guiding structure including a first flow guiding plate and a second flow guiding plate. The first flow guiding plate is parallel to the second through hole and is fixedly connected to the second through hole through the second flow guiding plate.

[0012] Optionally, the surface array of the first guide plate facing the second through hole is provided with a plurality of protrusions, the radial dimension of the protrusions gradually decreasing from the direction of the first guide plate towards the second through hole, and / or, one end of the second guide plate away from the first guide plate extends to the flange.

[0013] Optionally, the flow guiding structure is provided with a filter screen, the pore size of which ranges from 1 μm to 50 μm.

[0014] Secondly, this utility model provides a marine gas detector, including a marine gas detector body and a marine gas detector housing as described above.

[0015] The beneficial effects of this utility model regarding a marine gas detector housing and the marine gas detector itself are as follows: The base surface has a groove, and one end of the upper shell sidewall has a flange. The base and upper shell are fixedly connected by the groove and flange, forming a cavity structure for accommodating the marine gas detector body. This marine gas detector housing effectively protects the marine gas detector body from direct damage from external factors (such as impact from foreign objects, moisture intrusion, and salt spray corrosion). The sidewall of the upper shell has two through holes: the first through hole is used to install a sealing ring, suitable for situations where some components of the marine gas detector body (such as antennas, grounding devices, etc.) need to be exposed to the external environment. By sealing the gap between this component and the first through hole with the sealing ring, salt spray can be prevented from entering the marine gas detector housing and corroding the marine gas detector body, while also reducing the risk of short circuits or other electrical faults caused by moisture intrusion into the marine gas detector body. The second through hole allows air from the external environment to enter the gas sensing area of ​​the marine gas detector body, ensuring that the gas detection function is not affected. A hydrophobic flow-guiding structure is installed at the second through-hole location. By altering the flow path of salt spray and moisture, it can prevent some of the salt spray and moisture from directly affecting the marine gas detector body. This provides a safe and stable operating environment for the marine gas detector body, improving its reliability and service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the marine gas detector housing in an embodiment of this utility model; Figure 2 This is a schematic diagram of the upper shell structure in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the marine gas detector body and the marine gas detector housing in an embodiment of this utility model; Figure 4 This is a schematic diagram of the button device and the upper shell in an embodiment of this utility model; Figure 5 This is a schematic diagram of the upper shell structure in another embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Base; 3. Sealing ring; 2. Upper shell; 21. First shell; 22. Second shell; 211. Side wall; 212. Top cover; 213. Lampshade; 221. Display cover; 2111. First through hole; 2112. Second through hole; 2113. First side wall; 2114. Second side wall; 2115. Third side wall; 2116. Airflow guiding structure; 4. Button device; 41. Button; 42. Support base; 43. Linkage structure; 421. First component; 422. Second component; 431. First crossbar; 432. Second crossbar; 433. First vertical bar. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0019] It should be understood that the steps described in the method embodiments of this utility model may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this utility model is not limited in this respect.

[0020] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0021] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0022] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0023] like Figure 1 and 2 As shown in the figure, a marine gas detector housing provided by this utility model includes a base 1, an upper shell 2, and a sealing ring 3. The surface of the base 1 facing the upper shell 2 is provided with a circumferentially surrounding groove. The upper shell 2 is used to install on the base 1 to form a cavity structure for accommodating the marine gas detector body. The upper shell 2 includes a first shell 21, which includes a side wall 211 and a top cover 212. The side wall 211 is perpendicular to the top cover 212. One end of the side wall 211 away from the top cover 212 is provided with a flange that is adapted to engage with the groove. The side wall 211 has a first through hole 2111 for at least a portion of the marine gas detector body to extend out and a second through hole 2112 corresponding to the gas sensing part of the marine gas detector body. The sealing ring 3 is embedded in the first through hole 2111. The inner side of the side wall 211 is provided with a flow guiding structure 2116 corresponding to the second through hole 2112. The surface of the flow guiding structure 2116 is provided with a hydrophobic coating.

[0024] Specifically, the base 1 is a plate-like structure and can be made of rigid plastic. The upper surface edge of the base 1 has an annular groove (e.g., the groove is 5mm wide and 3mm deep), pre-coated with waterproof silicone grease or equipped with a sealing strip to accommodate the flange of the upper shell 2. When the base 1 and the upper shell 2 are connected, the waterproof silicone grease and sealing strip seal the connection gap. The base 1 has bolt holes at its four corners (e.g., four bolt holes with a diameter of 8mm), which match the corresponding holes on the upper shell 2. These are then fixed together with bolts (e.g., M8×25 bolts, performance grade A4-80) to form a spatial cavity structure for housing the marine gas detector body. Simultaneously, the bolt holes at the four corners of the base 1, matching the corresponding holes on the upper shell 2, are used to fix the marine gas detector housing to the hull. Nuts are embedded in the base 1, and the marine gas detector body is fixed to the base with bolts.

[0025] In some embodiments, the groove is widened and the sealing strip is thickened.

[0026] In other embodiments, the groove has bevels at a certain angle (e.g., 45°) on both sides.

[0027] When installing a marine gas detector inside a ship's cabin, first install the base 1 of the marine gas detector housing, then install the marine gas detector body, and finally install the upper shell 2 of the marine gas detector housing.

[0028] The upper shell 2 is an integrated frame structure, which can be made of rigid plastic, including the first shell 21. A flange (e.g., 5mm wide and 3mm high) extends from the bottom of the side wall 211 of the first shell 21, precisely fitting into the annular groove of the base 1 to form a preliminary sealing interface. The top of the side wall 211 is fixedly connected to the upper cover 212. Two types of through holes are provided on the side wall 211. The first through hole 2111 exposes part of the marine gas detector body to the external environment. A sealing ring 3 is pre-installed inside the first through hole 2111, sealing the gap between the part of the marine gas detector body and the first through hole 2111, preventing moisture and salt spray from entering the interior of the marine gas detector shell, thus ensuring the normal operation of the marine gas detector body. The second through hole 2112 allows air from the external environment to enter the gas sensing area of ​​the marine gas detector body. The position of the second through hole 2112 corresponds to the sensor of the marine gas detector body. A flow guiding structure 2116 is provided between the second through-hole 2112 and the sensor. The flow guiding structure 2116 is fixedly connected to the inner side of the side wall 211 and corresponds to the second through-hole 2112. By changing the original flow path of salt spray and moisture entering from the second through-hole 2112, the flow guiding structure 2116 can block some moisture and salt spray from entering the interior of the marine gas detector housing through inertial separation. When the flow guiding structure 2116 adopts a hydrophobic coating (such as polytetrafluoroethylene or silane coating), due to the low surface energy characteristics of the hydrophobic coating, droplets will form spheres when they come into contact with the flow guiding structure and will quickly slide off under the action of gravity and other forces, and be quickly discharged from the second through-hole 2112. This further reduces the probability of moisture and liquid salt spray entering the interior of the marine gas detector housing and better protects the marine gas detector body.

[0029] The sealing ring 3 is typically made of high-performance, corrosion-resistant, and anti-aging materials (such as silicone or fluororubber), which can be used for a long time without failure in high humidity and high salinity environments. In some embodiments, the sealing ring 3 is T-shaped and made of silicone. In other embodiments, the fluororubber sealing ring 3 (Shore hardness 70±5) in the first through hole 2111 achieves a dynamic seal between the gas detector component and the first through hole 2111 through a 20% compression.

[0030] In this embodiment, the base 1 has a groove on its surface, and the upper shell 2 has a flange at one end of its side wall 211. The base 1 and the upper shell 2 are fixedly connected by the groove and flange, forming a cavity structure for accommodating the marine gas detector body. This marine gas detector housing effectively protects the marine gas detector body from direct damage by external factors (such as impact from foreign objects, moisture intrusion, and salt spray corrosion). The side wall 211 of the upper shell 2 has two through holes: the first through hole 2111 is used to install a sealing ring 3, suitable for situations where some components of the marine gas detector body (such as antennas, grounding devices, etc.) need to be exposed to the external environment. By sealing the gap between this component and the first through hole 2111 with the sealing ring 3, salt spray can be prevented from entering the marine gas detector housing and corroding the marine gas detector body, while also reducing the risk of short circuits or other electrical faults caused by moisture intrusion into the marine gas detector body. The second through hole 2112 allows air from the external environment to enter the gas sensing area of ​​the marine gas detector body, ensuring that the gas detection function is not affected. A hydrophobic flow guiding structure 2116 is installed at the second through-hole 2112. By changing the flow path of salt spray and moisture, it can block some of the salt spray and moisture from directly affecting the marine gas detector body. This provides a safe and stable operating environment for the marine gas detector body, improving the reliability and service life of the marine gas detector.

[0031] Optionally, the upper shell 2 further includes a second shell 22, which is formed by extending a portion of the upper cover 212 in a direction away from the sidewall 211.

[0032] It should be noted that, Figure 3 The direction of the dashed arrow indicates the installation direction.

[0033] Specifically, such as Figure 2 and 3 As shown, a third through hole is provided on the upper cover 212. The position and size of the third through hole are customized according to the actual situation of the display of the marine gas detector body. The area of ​​the third through hole is slightly larger than the area of ​​the display to ensure that the display can pass through smoothly and be exposed. The display passes through the upper cover 212 through the third through hole and is fixedly connected to the third through hole through the second housing 22, which protects the display inside the housing.

[0034] In other words, the overall design of the marine gas detector housing is to fit and protect the entire marine gas detector body, while the second housing 22 is an adapter specifically designed to house and protect the display of the marine gas detector body.

[0035] In this optional embodiment, compared to standardized marine gas detector housings (such as cuboids or cylinders), a customized marine gas detector housing, specifically a customized second housing 22 protecting the display, can improve the utilization of the internal space of the marine gas detector housing, reduce unnecessary material usage, and lower costs.

[0036] Optionally, the marine gas detector housing further includes a lampshade 213 and a display cover 221. The side wall 211 includes a first side wall 2113. A first opening is provided at the junction of the top cover 212 and the first side wall 2113. The lampshade 213 is embedded in the first opening. The top of the second housing 22 is provided with a second opening. The display cover 221 is embedded in the second opening.

[0037] Specifically, such as Figure 2 and 3 As shown, the display cover 221 is made of a transparent material (such as acrylic), and the lampshade 213 is made of a translucent material (such as silicone). Both the display cover 221 and the lampshade 213 are waterproof and corrosion-resistant. The display cover 221 is located at the second opening, corresponding to the display screen (such as an LCD segment display). The area of ​​the display cover 221 is greater than or equal to the area of ​​the display screen, allowing the real-time concentration information of a specific gas (such as carbon monoxide, hydrogen sulfide, or methane) displayed on the screen to be viewed through the display cover 221. The lampshade 213 is located at the first opening, corresponding to the alarm light on the marine gas detector body. The lampshade 213 allows the user to check if the alarm light is on, and when it is on, appropriate safety measures can be taken immediately. The lampshade 213 has an overall L-shaped plate structure. The display cover 221 and the lampshade 213 can be connected to the marine gas detector body respectively, so that the light emitted from the display screen is focused on the display cover 221, and the light emitted from the alarm light is focused on the lampshade 213, facilitating viewing.

[0038] In some embodiments, the display cover 221 is joined to the top cover of the second housing 22 by an adhesive gasket. The lamp cover 213 is joined to the top cover 212 and to the first sidewall 2113 by an adhesive gasket. The display cover 221 and the lamp cover 213 are disposed on the surface of the marine gas detector housing. The adhesive gasket can be a double-sided (VBH, Very High Bond) adhesive gasket, respectively disposed on the inner wall of the display cover 221 and the inner wall of the lamp cover 213, to prevent external moisture and salt spray from entering the marine gas detector housing from the display cover 221 and the lamp cover 213, thereby better protecting the marine gas detector body and extending its service life. When the display cover 221 is circular, the gasket is annular.

[0039] In other embodiments, the lampshade 213 is connected to the upper housing 2 via a recess. The display cover 221 is connected to the upper housing 2 via multiple clips (e.g., three).

[0040] In this optional embodiment, by setting up a display cover 221 and a lamp cover 213, the user can directly view the concentration information of a specific gas (such as carbon monoxide, hydrogen sulfide, methane) and the status of the alarm light without opening the housing, which facilitates the timely detection of potential safety issues.

[0041] Optionally, the marine gas detector housing further includes a button device 4, which includes a button 41, a support base 42, and a connecting rod structure 43. One end of the button 41 passes through the first through hole 2111, and the sealing ring 3 is disposed between the button 41 and the first through hole 2111. The other end of the button 41 is connected to one end of the connecting rod structure 43, and the other end of the connecting rod structure 43 is used to abut against the power contact of the marine gas detector body. The top surface of the support base 42 is connected to the upper cover 212, and the bottom surface of the support base 42 is provided with a sliding groove, in which the connecting rod structure 43 is disposed.

[0042] Specifically, when the marine gas detector body is placed inside the marine gas detector housing, it can be controlled to open or close via infrared remote control technology, or via a button device 4. The button device 4 consists of a button 41, a support base 42, and a connecting rod structure 43. One end of the button 41 passes through the first through hole 2111, partially exposed for user operation. To ensure a good seal between the button 41 and the first through hole 2111, a sealing ring 3 is provided to prevent external moisture and salt spray from entering and causing the marine gas detector body to malfunction. The other end of the button 41 is fixedly connected to one end of the connecting rod structure 43. When the user presses the button 41, the connecting rod structure 43 moves. The other end of the connecting rod structure 43 is used to control the power supply status of the marine gas detector body. When the end face contacts the power contact of the marine gas detector body, the circuit is connected, and the marine gas detector body is in the working state; when the end face does not contact the power contact of the marine gas detector body, the circuit is disconnected, and the marine gas detector body is in the off state. Furthermore, the connecting rod structure 43 is disposed within a groove opened on the bottom surface of the support base 42, and the top surface of the support base 42 is fixed to the inside of the upper cover 212. The support base 42 not only determines the position of the connecting rod structure 43 but also allows the connecting rod structure 43 to move along a preset trajectory.

[0043] In some embodiments, the button 41 is composed of two cylinders whose bottom surfaces are connected. The cylinder with a larger bottom surface area is located inside the first housing 21, and the cylinder with a smaller bottom surface area penetrates the side wall 211 of the first housing 21, so that part of it extends outside the first housing 21.

[0044] In this optional embodiment, by providing a button device 4, the user can turn the marine gas detector on or off by pressing the button 41 without opening the marine gas detector housing, making operation more convenient and improving the user experience. At the same time, it avoids potential sealing problems caused by frequent opening and closing of the marine gas detector housing. Furthermore, the sealing ring 3 embedded in the first through hole 2111 prevents moisture and salt spray from entering the marine gas detector housing through the gap between the button 41 and the first through hole 2111 when the button 41 is pressed, ensuring the normal operation of the marine gas detector body and improving its reliability.

[0045] Optionally, the linkage structure 43 includes a first horizontal bar 431, a second horizontal bar 432, and a first vertical bar 433. The first horizontal bar 431 and the second horizontal bar 432 are parallel and vertically spaced apart. The first horizontal bar 431 is fixedly connected to the second horizontal bar 432 through the first vertical bar 433. The support base 42 includes a first component 421 and a second component 422. The top surface of the first component 421 is connected to the upper cover 212. The bottom surface of the first component 421 has the sliding groove. One end of the sliding groove is provided with an elastic mechanism. The first horizontal bar 431 is disposed in the sliding groove. One end of the first horizontal bar 431 is connected to the button 41, and the other end of the first horizontal bar 431 is connected to the elastic mechanism. The second component 422 is perpendicular to the first component 421. The second component 422 has a fourth through hole, and the second horizontal bar 432 passes through the fourth through hole.

[0046] Specifically, such as Figure 4As shown, the linkage structure 43 consists of a first horizontal bar 431, a second horizontal bar 432, and a first vertical bar 433. The support base 42 consists of a first component 421 and a second component 422. The first component 421 has a groove for the first horizontal bar 431 to move along a preset trajectory. One end of the groove is open, allowing one end of the first horizontal bar 431 to connect to the button 41. The other end of the groove is closed and equipped with an elastic mechanism (such as a spring), and the other end of the first horizontal bar 431 is connected to the elastic mechanism. After the pressure of the button 41 is released, the elastic force generated by the elastic mechanism can quickly reset the first horizontal bar 431. The second horizontal bar 432 is located below the first horizontal bar 431 and is parallel to the first horizontal bar 431. There is a vertical gap between the two horizontal bars, which are connected together by the first vertical bar 433. In addition, the second horizontal bar 432 passes through a fourth through hole opened in the second component 422. When the first horizontal bar 431 moves along the groove, it will drive the second horizontal bar 432 to move. The fourth through hole allows the second crossbar 432 to move along a preset trajectory, that is, to move perpendicular to the second component 422.

[0047] When the marine gas detector is in the off state, pressing button 41 moves the first crossbar 431 along the slide groove in the pressure direction, causing one end of the second crossbar 432 to gradually approach the power contact and eventually contact it, thus turning on the marine gas detector. When the marine gas detector is in the working state, pressing button 41 moves the first crossbar 431 along the slide groove in the opposite pressure direction, causing one end of the second crossbar 432 to gradually move away from the power contact, thus turning off the marine gas detector.

[0048] In this optional embodiment, since the first crossbar 431 is subjected to pressure from the button 41 and elastic force from the elastic element, and the first crossbar 431 and the second crossbar 432 are parallel and vertically spaced, and fixedly connected by the first vertical bar 433, the first crossbar 431 can drive the second crossbar 432 to contact or move away from the power contact via the button 41, thereby controlling the power supply status of the marine gas detector body and making operation more convenient. Furthermore, the first component 421 is provided with a sliding groove and the second component 422 has a fourth through hole, ensuring that the first crossbar 431 and the second crossbar 432 move along a preset trajectory even after multiple presses of the button 41, avoiding poor electrical contact caused by irregular movement.

[0049] Optionally, one end of the antenna and / or grounding device of the marine gas detector body passes through the first through hole 2111, and the sealing ring 3 is disposed between the antenna and the first through hole 2111, and / or between the grounding device and the first through hole 2111.

[0050] Specifically, such as Figure 5As shown, besides button 41 needing to be exposed to the external environment for user pressing, the antenna of the marine gas detector also needs to be exposed to the external environment for wireless signal transmission. This allows for effective monitoring of changes in the concentration of specific gases (such as carbon monoxide, hydrogen sulfide, and methane), facilitating timely implementation of appropriate safety measures. The grounding device of the marine gas detector also needs to be exposed to the external environment to prevent leakage. To ensure a good seal between the antenna, grounding device, and the first through-hole 2111, a sealing ring 3 is provided to prevent external moisture and salt spray from entering through the gaps, which could cause the marine gas detector to malfunction.

[0051] In this optional embodiment, according to various requirements of the marine gas detector, multiple first through holes 2111 are opened on the side wall 211, and a sealing ring 3 is embedded in each first through hole 2111. While ensuring that the marine gas detector body is protected from direct damage by external factors (such as impact from foreign objects, moisture intrusion, and salt spray corrosion), the normal function of the marine gas detector body is not affected.

[0052] Optionally, the sidewall 211 includes a second sidewall 2114, the second sidewall 2114 having a plurality of strip-shaped and parallel second through holes 2112, and the inner side of the second sidewall 2114 having a plurality of corresponding flow guiding structures 2116, the flow guiding structure 2116 including a first flow guiding plate and a second flow guiding plate, the first flow guiding plate being parallel to the second through holes 2112, and the first flow guiding plate being fixedly connected to the second through holes 2112 through the second flow guiding plate.

[0053] Specifically, the second sidewall 2114 has multiple parallel, strip-shaped second through holes 2112. For example, all the second through holes 2112 are rectangles of the same size, arranged side by side, and the spacing between each second through hole 2112 is equal. Each second through hole 2112 is provided with a corresponding flow guiding structure 2116, which includes a first flow guiding plate and a second flow guiding plate. The first and second flow guiding plates can be rectangular plate structures. The first flow guiding plate is parallel to the second sidewall 2114, and its position corresponds to the second through hole 2112. The first flow guiding plate is connected to the second through hole 2112 through the second flow guiding plate. For example, the flow guiding structure 2116 is an L-shaped plate structure, and the side of the second flow guiding plate away from the first flow guiding plate is connected to the second through hole 2112. When air from the external environment enters through the second through hole 2112, it will flow through a Z-shaped path guided by the flow guiding structure 2116 and enter the gas sensing area of ​​the marine gas detector body. Compared to the original flow path, this flow path is more complex. If salt spray and moisture enter the gas sensing area through this path, the difficulty increases significantly. Specifically, because some moisture and salt spray have a large mass, they cannot turn in time when a change of direction is needed due to their greater inertia. This causes them to collide with the guide structure 2116, preventing them from continuing along the flow path and effectively reducing the probability of moisture and salt spray affecting the marine gas detector itself.

[0054] In some embodiments, such as Figure 2 As shown, after installing the marine gas detector housing and body, the second sidewall 2114 is located at the bottom and parallel to the ground. The second sidewall 2114 has a row of three second through holes 2112. The right side of each second through hole 2112 connects to a second guide plate, which in turn connects to a first guide plate, which is parallel to the second through hole 2112. If salt spray and moisture from the external environment enter through the third second through hole 2112, they will first impact the first guide plate of that second through hole 2112, then impact the second guide plate of the second second through hole 2112, and enter the gas sensing area. If salt spray and moisture from the external environment enter through the first second through hole 2112, they will first impact the first guide plate of that second through hole 2112, then impact the third sidewall 2115, and enter the gas sensing area.

[0055] In other embodiments, such as Figure 5As shown, after installing the marine gas detector housing and the marine gas detector body, the second sidewall 2114 is located at the bottom and is parallel to the ground. The second sidewall 2114 has a row of five second through holes 2112. The left side of each second through hole 2112 is connected to a second guide plate, which is connected to a first guide plate, parallel to the second through hole 2112. If salt spray and moisture from the external environment enter through the first second through hole 2112, they will first impact the first guide plate of that second through hole 2112, then impact the second guide plate of the second second through hole 2112, and enter the gas sensing area. If salt spray and moisture from the external environment enter through the fifth second through hole 2112, they will first impact the first guide plate of that second through hole 2112, then impact the third sidewall 2115, and enter the gas sensing area.

[0056] In this optional embodiment, multiple second through holes 2112 are provided on the second sidewall 2114, allowing air from the external environment to reach the gas sensing area of ​​the marine gas detector body. This ensures that the marine gas detector body inside the housing can effectively monitor specific gas concentrations in the external environment. A flow guiding structure 2116 is provided corresponding to the positions of the second through holes 2112, making the original airflow path more complex. This design allows only a small amount of salt spray and moisture to enter the gas sensing area through the complex flow path, improving the reliability of the marine gas detector body.

[0057] Optionally, the surface of the first guide plate facing the second through hole 2112 is provided with a plurality of protrusions, the radial dimension of the protrusions gradually decreasing from the direction of the first guide plate toward the second through hole 2112, and / or, one end of the second guide plate away from the first guide plate extends to the flange.

[0058] Specifically, when the second through-hole 2112 is installed facing downwards, multiple protrusions are provided on the surface of the first guide plate facing the second through-hole 2112. The protrusions can be conical, pyramidal, or other shapes, with their tops facing the second through-hole 2112. The protrusions are arranged according to a certain pattern, such as a matrix or honeycomb arrangement, to maximize the coverage area and ensure uniform distribution. Under the action of the protrusions and gravity, the spherical liquid salt mist and moisture formed upon contact with the hydrophobic guide structure 2116 will slide down the sides of the protrusions and be quickly discharged from the second through-hole 2112. When the base 1 is installed facing downwards, the end of the second guide plate away from the first guide plate extends to the flange, guiding the spherical liquid salt mist and moisture formed upon contact with the hydrophobic guide structure 2116 to the groove.

[0059] In this optional embodiment, by adaptively configuring the flow guiding structure 2116, the probability of moisture and salt spray affecting the marine gas detector body can be further reduced, thereby better protecting the marine gas detector body.

[0060] Optionally, the flow guiding structure 2116 is provided with a filter screen, the pore size of which ranges from 1 μm to 50 μm.

[0061] Specifically, the second through-hole 2112 serves as the inlet of the flow guiding structure 2116, and a filter screen is positioned at the outlet of the flow guiding structure 2116. The filter screen comprises a coarse filter layer and a fine filter layer. The coarse filter layer has a pore size ranging from 10 μm to 50 μm and is used to intercept large droplets and salt crystal agglomerates. The fine filter layer has a pore size ranging from 1 μm to 10 μm and is used to capture small solid salt particles. The filter screen can be made of 316L stainless steel, fiberglass felt, or PTFE membrane. The filter screen surface can be coated with polytetrafluoroethylene for hydrophobic treatment, and an antistatic coating can reduce particle adsorption.

[0062] In this optional embodiment, after the flow guiding structure 2116 blocks some of the moisture and salt spray particles, the remaining moisture and salt spray particles are intercepted by the filter screen. This design can prevent short circuits or other electrical faults caused by moisture entering the marine gas detector body through the second through hole 2112, and can also prevent salt spray from entering the marine gas detector housing through the second through hole 2112, protecting the marine gas detector body from corrosion.

[0063] This utility model provides a marine gas detector, including a marine gas detector body and a marine gas detector housing as described above.

[0064] In this embodiment, the marine gas detector can monitor the concentration of a specific gas in real time and defend against direct damage from external factors (such as impact from foreign objects, moisture intrusion, and salt spray corrosion), thereby improving the reliability and service life of the marine gas detector.

[0065] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A marine gas detector housing, characterized in that, The device includes a base (1), an upper shell (2), and a sealing ring (3). The surface of the base (1) facing the upper shell (2) is provided with a circumferentially surrounding groove. The upper shell (2) is used to install on the base (1) to form a cavity structure for accommodating the body of the marine gas detector. The upper shell (2) includes a first housing (21), which includes a side wall (211) and a top cover (212). The side wall (211) is perpendicular to the top cover (212) and is located away from the top cover (212). One end of the gas detector is provided with a flange that fits into the groove. The sidewall (211) is provided with a first through hole (2111) for at least part of the marine gas detector body to extend out and a second through hole (2112) corresponding to the gas sensing part of the marine gas detector body. The sealing ring (3) is embedded in the first through hole (2111). The inner side of the sidewall (211) is provided with a flow guiding structure (2116) corresponding to the second through hole (2112). The surface of the flow guiding structure (2116) is provided with a hydrophobic coating.

2. The marine gas detector housing according to claim 1, characterized in that, The upper shell (2) also includes a second shell (22), which is formed by extending a portion of the upper cover (212) away from the sidewall (211).

3. The marine gas detector housing according to claim 2, characterized in that, It also includes a lampshade (213) and a display cover (221). The side wall (211) includes a first side wall (2113). The top cover (212) and the first side wall (2113) are connected by a first opening. The lampshade (213) is embedded in the first opening. The top of the second housing (22) is provided with a second opening. The display cover (221) is embedded in the second opening.

4. The marine gas detector housing according to claim 1, characterized in that, It also includes a button device (4), which includes a button (41), a support base (42) and a connecting rod structure (43). One end of the button (41) passes through the first through hole (2111), and the sealing ring (3) is disposed between the button (41) and the first through hole (2111). The other end of the button (41) is connected to one end of the connecting rod structure (43), and the other end of the connecting rod structure (43) is used to abut against the power contact of the marine gas detector body. The top surface of the support base (42) is connected to the top cover (212), and the bottom surface of the support base (42) is provided with a sliding groove. The connecting rod structure (43) is disposed in the sliding groove.

5. The marine gas detector housing according to claim 4, characterized in that, The linkage structure (43) includes a first horizontal bar (431), a second horizontal bar (432), and a first vertical bar (433). The first horizontal bar (431) and the second horizontal bar (432) are parallel and vertically spaced apart. The first horizontal bar (431) is fixedly connected to the second horizontal bar (432) through the first vertical bar (433). The support base (42) includes a first component (421) and a second component (422). The top surface of the first component (421) is connected to the upper cover (212). The first component (421) has a groove on its bottom surface, and an elastic mechanism is provided at one end of the groove. The first crossbar (431) is located in the groove. One end of the first crossbar (431) is connected to the button (41), and the other end of the first crossbar (431) is connected to the elastic mechanism. The second component (422) is perpendicular to the first component (421). The second component (422) has a fourth through hole, and the second crossbar (432) passes through the fourth through hole.

6. The marine gas detector housing according to claim 1, characterized in that, One end of the antenna and / or grounding device of the marine gas detector body passes through the first through hole (2111), the sealing ring (3) is disposed between the antenna and the first through hole (2111), and / or between the grounding device and the first through hole (2111).

7. The marine gas detector housing according to claim 1, characterized in that, The sidewall (211) includes a second sidewall (2114), which has a plurality of strip-shaped and parallel second through holes (2112). The inner side of the second sidewall (2114) is provided with a plurality of corresponding flow guiding structures (2116). The flow guiding structure (2116) includes a first flow guiding plate and a second flow guiding plate. The first flow guiding plate is parallel to the second through hole (2112), and the first flow guiding plate is fixedly connected to the second through hole (2112) through the second flow guiding plate.

8. The marine gas detector housing according to claim 7, characterized in that, The first guide plate has a plurality of protrusions arranged on its surface facing the second through hole (2112). The radial dimension of the protrusions gradually decreases from the direction of the first guide plate toward the second through hole (2112), and / or, one end of the second guide plate away from the first guide plate extends to the flange.

9. The marine gas detector housing according to claim 7, characterized in that, The flow guiding structure (2116) is provided with a filter screen, the pore size of which ranges from 1μm to 50μm.

10. A marine gas detector, characterized in that, It includes a marine gas detector body and a marine gas detector housing as described in any one of claims 1 to 9.

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