Protective cover for outdoor combustible gas alarm
By designing protective components for the protective cover, the problems of corrosion and detection accuracy of outdoor combustible gas detectors in harsh environments have been solved, achieving all-weather protection and convenient maintenance of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中国航空油料有限责任公司
- Filing Date
- 2025-05-16
- Publication Date
- 2026-06-26
Smart Images

Figure CN224419050U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of protective cover technology, specifically a protective cover for an outdoor combustible gas alarm. Background Technology
[0002] Outdoor combustible gas detectors play a crucial role in various scenarios such as the chemical industry, aviation fuel depots, and supply stations. They are used to monitor the concentration of combustible gases in the environment in real time and prevent safety accidents such as fires and explosions. However, outdoor combustible gas detectors are exposed to harsh natural environments for a long time. In areas with frequent rain erosion, the detectors are constantly subjected to rainwater erosion. In areas with severe air pollution, the detectors may even be corroded by acid rain. Under such conditions, the signs and metal casings on the detectors are very prone to rust.
[0003] The corrosion problem makes it difficult for maintenance personnel to judge the working status of the alarm, and also affects the accurate recording of the effective information of the alarm. This adversely affects the progress of regular maintenance and testing of combustible gas alarms, and brings great inconvenience to daily maintenance and periodic testing.
[0004] Currently, the protection of combustible gas alarms relies mainly on regular inspections and maintenance by staff. However, this method has certain delays and cannot promptly address damage caused by sudden severe weather or other unforeseen circumstances. Furthermore, the lack of a protective cover prevents the display screen from becoming blurry, making it difficult for staff to read the data. Existing protective covers also reduce the airflow of the detector probe, affecting the accuracy of combustible gas detection and ultimately impacting the effectiveness of the alarm. Therefore, we propose a protective cover for outdoor combustible gas alarms. Utility Model Content
[0005] The purpose of this invention is to provide a protective cover for an outdoor combustible gas alarm to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A protective cover for an outdoor combustible gas detector includes a combustible gas detector body, a display screen at the front end of the detector body, a probe at the bottom end of the detector body, a mounting plate at the rear end of the detector body, a connector at one end of the detector body near the mounting plate, and a protective component on the outside of the detector body, the protective component including:
[0008] The rear baffle is attached to the rear end of the mounting plate. The rear baffle has a through-hole for locating the alarm. The left baffle and right baffle are fixedly installed on the front sides of the rear baffle, respectively.
[0009] A conduit hole is provided on the left baffle. An arched cover is hinged to the top of the right baffle using a hinge. The arched cover is an inclined arch with a groove. The material thickness of the arched cover is greater than that of the rear baffle, the left baffle, and the right baffle.
[0010] Stainless steel sheets are fixedly installed on both the left and right baffles by screws. There are two sets of stainless steel sheets, and a stainless steel strip is welded between the two sets of stainless steel sheets. The stainless steel strip is in the shape of an inverted "V". The bottom end of the stainless steel strip is provided with an arc-shaped structure, which is located outside the probe. The upper edge of the arc-shaped structure is slightly higher than the upper part of the probe, and the lower edge of the arc-shaped structure is flush with the bottom of the probe.
[0011] In a further embodiment, the mounting plate has a through mounting hole, and the mounting hole is coaxial with the center of the cross-section of the alarm positioning hole. Multiple sets of mounting plates and alarm positioning holes are provided to better install the combustible gas alarm body.
[0012] In a further embodiment, the outer walls at the upper and lower ends of the left and right baffles are inclined.
[0013] In a further embodiment, when the arched cover is closed, the upper edges of the rear baffle, left baffle, and right baffle are embedded in grooves, achieving a seepage prevention effect in rainy environments.
[0014] In a further embodiment, the length of the rear baffle and the height of the left and right baffles are both greater than the length of the combustible gas alarm body above the probe, and the width of the left and right baffles is greater than the width of the combustible gas alarm body above the probe.
[0015] In a further embodiment, an auxiliary component is provided on the outside of the combustible gas alarm body. The auxiliary component includes a hinge, and one end of the front door is hinged to the front end of the left baffle via the hinge. A handle is fixedly installed on the other end of the front door.
[0016] In a further embodiment, the arched cover is closed, causing the upper edge of the front door to be embedded in a groove, thus achieving a seepage prevention effect in rainy environments.
[0017] Compared with the prior art, this utility model provides a protective cover for an outdoor combustible gas alarm, which has the following beneficial effects:
[0018] 1. This outdoor combustible gas alarm uses a protective cover. To better protect the alarm body, a protective component is installed. First, align the alarm positioning hole on the rear baffle with the mounting plate, then install the entire protective cover in the target position. The cover aligns with the conduit hole on the left baffle, which matches the diameter of the combustible gas conduit for subsequent conduit and connector installation. The arched cover on the right baffle allows for 180-degree opening and closing, facilitating viewing the alarm's nameplate and maintenance. The arched cover's tilted shape... The arched design allows rainwater to slide off easily, and the arched cover is thicker than the rear, left, and right baffles. When the arched cover is closed, the upper edges of the rear, left, and right baffles are embedded in the grooves, providing a seepage-proof effect in rainy environments. The upper edge of the stainless steel strip's arc structure is slightly higher than the top of the probe to prevent rainwater from falling onto the probe, while the lower edge of the arc structure is flush with the bottom of the probe, ensuring that it does not block external combustible gases when the wind is crosswind. In summary, this design better protects the combustible gas alarm body.
[0019] 2. The protective cover for this outdoor combustible gas alarm is equipped with auxiliary components to further protect the alarm body. Before closing the arched cover, the front door is closed with the hinges and kept parallel to the rear baffle. Then the arched cover is closed, so that the upper edge of the front door is also embedded in the groove, which has a seepage prevention effect in rainy environments. This further prevents rainwater from eroding the combustible gas alarm body and provides better protection. Conversely, by holding the handle, the front door can be easily opened to view the nameplate and display information of the combustible gas alarm body and facilitate maintenance. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;
[0022] Figure 3 This is a schematic diagram of the connection of some parts of the structure of this utility model;
[0023] Figure 4 This is a schematic diagram of the structural connection of part of this utility model from another perspective;
[0024] Figure 5 This is a partial structural side view of the present utility model;
[0025] Figure 6 This is a schematic diagram of the connection between the stainless steel sheet and stainless steel strip of this utility model.
[0026] Explanation of icon numbers:
[0027] 1. Combustible gas alarm body; 11. Display screen; 12. Probe; 13. Mounting plate; 14. Connector;
[0028] 2. Protective components; 21. Rear baffle; 22. Alarm positioning hole; 23. Left baffle; 24. Right baffle; 25. Conduit hole; 26. Arched cover; 27. Groove; 28. Stainless steel sheet; 29. Screw; 210. Stainless steel strip;
[0029] 3. Auxiliary components; 31. Hinges; 32. Front door; 33. Handles. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated devices, elements, or components to having a specific orientation, or to constructing and operating in a specific orientation. Furthermore, the specific meaning of these terms in this application can be understood according to the specific circumstances.
[0032] Please see Figures 1-6 This utility model provides a technical solution:
[0033] A protective cover for an outdoor combustible gas alarm includes a combustible gas alarm body 1, a display screen 11 at the front end of the combustible gas alarm body 1, a probe 12 at the bottom end of the combustible gas alarm body 1, a mounting plate 13 at the rear end of the combustible gas alarm body 1, and a connector 14 at the end of the combustible gas alarm body 1 near the mounting plate 13.
[0034] In one embodiment of this utility model, a protective component 2 is provided on the outside of the combustible gas alarm body 1. The protective component 2 includes a rear baffle 21, and the rear end of the mounting plate 13 is attached to the rear baffle 21. A through alarm positioning hole 22 is provided on the rear baffle 21. In addition, a through mounting hole is provided on the mounting plate 13, and the mounting hole is coaxial with the center of the cross-section of the alarm positioning hole 22. Three sets of mounting plates 13 and alarm positioning holes 22 are provided to better install the combustible gas alarm body 1. A left baffle 23 and a right baffle 24 are fixedly installed on both sides of the front end of the rear baffle 21, respectively. The outer walls of the upper and lower ends of the left baffle 23 and right baffle 24 are inclined. Furthermore, the length of the rear baffle 21 and the height of the left baffle 23 and right baffle 24 are both greater than the length of the combustible gas alarm body 1 above the probe 12 by a distance a (2 cm in this embodiment). The width of the left baffle 23 and right baffle 24 are both greater than the width of the combustible gas alarm body 1 above the probe 12 by a distance b (in this embodiment). In the embodiment (5 cm), for better rain protection, a through-hole 25 for the wiring tube is provided on the left baffle 23, and an arched cover 26 is hinged to the top of the right baffle 24 using a hinged design. The arched cover 26 is sloping and has a groove 27. The material thickness of the arched cover 26 is greater than that of the rear baffle 21, left baffle 23, and right baffle 24. In addition, when the arched cover 26 is closed, the upper edges of the rear baffle 21, left baffle 23, and right baffle 24 are embedded in the groove. 27. To prevent seepage in rainy environments, stainless steel sheets 28 are fixedly installed on the left baffle 23 and the right baffle 24 by screws 29. There are two sets of stainless steel sheets 28, and stainless steel strips 210 are welded between the two sets of stainless steel sheets 28. The stainless steel strips 210 are in the shape of an inverted "V". The bottom of the stainless steel strips 210 is provided with an arc-shaped structure, and the arc-shaped structure is located outside the probe 12. The upper edge of the arc-shaped structure is slightly higher than the upper part of the probe 12, and the lower edge of the arc-shaped structure is flush with the bottom of the probe 12.
[0035] In this embodiment, firstly, align the alarm positioning hole 22 on the rear baffle 21 with the mounting plate 13 at the rear end of the combustible gas alarm body 1. Since the mounting plate 13 has mounting holes coaxial with the center of the cross-section of the alarm positioning hole 22, and both have three sets, use suitable mounting components (such as screws) to pass through the mounting holes and alarm positioning holes 22 to securely connect the rear baffle 21, mounting plate 13, and the equipment at the target location, completing the initial positioning and installation of the protective cover body and the combustible gas alarm body 1. Next, connect the combustible gas conduit to... The conduit hole 25 on the left baffle 23 is designed to fit the diameter of the combustible gas conduit, allowing the conduit to be easily passed through and connected to the connector 14, thus facilitating the arrangement of the combustible gas transmission line. Then, the arched cover 26, hinged at the top of the right baffle 24, is opened. This arched cover 26 can open and close 180 degrees, allowing operators to easily view the nameplate information on the combustible gas alarm body 1. It also facilitates maintenance in case of equipment malfunction. After completing the relevant checks... After maintenance, the arched cover 26 is closed. The arched cover 26 is sloping and arched, a design that allows rainwater to quickly slide off its surface under gravity, preventing water accumulation. Furthermore, the material thickness of the arched cover 26 is greater than that of the rear baffle 21, left baffle 23, and right baffle 24. When the arched cover 26 is closed, the upper edges of the rear baffle 21, left baffle 23, and right baffle 24 embed into the grooves 27 on the arched cover 26, forming a tight fit that effectively prevents rainwater infiltration, providing excellent waterproofing. Simultaneously, the left baffle 23 and... The stainless steel sheet 28, which is fixedly installed on the right baffle 24 by screws 29, and the stainless steel strip 210, which is welded between the two sets of stainless steel sheets 28 in the shape of an inverted "V", have an arc-shaped structure at the bottom located outside the probe 12. The upper edge of the arc-shaped structure is slightly higher than the upper part of the probe 12, which can effectively block rainwater from falling on the probe 12 and prevent rainwater from affecting the detection performance of the probe 12. The lower edge of the arc-shaped structure is flush with the bottom of the probe 12. When the wind direction is crosswind, it will not block the entry of external combustible gas, ensuring that the probe 12 can detect the concentration of external combustible gas normally.
[0036] In one embodiment of this utility model, an auxiliary component 3 is also provided on the outside of the combustible gas alarm body 1. The auxiliary component 3 includes a hinge 31. The front end of the left baffle 23 is hinged to one end of the front door 32 through the hinge 31. The other end of the front door 32 is fixedly installed with a handle 33. In addition, when the arched cover 26 is closed, the upper edge of the front door 32 is also embedded in the groove 27, which has a seepage prevention effect in rainy environments.
[0037] In this embodiment, before closing the arched cover 26, the front door 32 is closed using the hinge 31 to keep it parallel to the rear baffle 21. Then, the arched cover 26 is closed. At this time, the upper edge of the front door 32 is also embedded in the groove 27 of the arched cover 26, further enhancing the protective cover's impermeability in rainy environments. This forms a protective barrier from multiple directions, more effectively preventing rainwater from eroding the combustible gas alarm body 1 and providing it with more comprehensive protection. When the operator needs to view the nameplate information of the combustible gas alarm body 1, the data information displayed on the display screen 11, or perform maintenance on the equipment, they only need to open the arched cover 26, grasp the handle 33 fixedly installed on the front door 32, and apply force to open the front door 32, providing convenience for operation.
[0038] The rear panel 21, left panel 23, right panel 24, arched cover 26, stainless steel sheet 28, stainless steel strip 210, and front door 32 are all made of stainless steel.
[0039] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A protective cover for an outdoor combustible gas alarm, comprising a combustible gas alarm body (1), wherein a display screen (11) is provided at the front end of the combustible gas alarm body (1), a probe (12) is provided at the bottom end of the combustible gas alarm body (1), a mounting plate (13) is provided at the rear end of the combustible gas alarm body (1), and a connector (14) is provided at one end of the combustible gas alarm body (1) near the mounting plate (13), characterized in that: A protection component (2) is provided outside the combustible gas alarm body (1), and the protection component (2) includes: A rear baffle (21), the rear end of the mounting plate (13) is fitted with the rear baffle (21), a through alarm positioning hole (22) is provided on the rear baffle (21), and a left baffle (23) and a right baffle (24) are respectively and fixedly installed on both sides of the front end of the rear baffle (21); A wire passing pipe hole (25), a through wire passing pipe hole (25) is provided on the left baffle (23), the top end of the right baffle (24) is hinged and installed with an arched cover (26) in the form of a hinge, the arched cover (26) is in an inclined arch shape, a groove (27) is provided on the arched cover (26), and the material thickness of the arched cover (26) is greater than the material thickness of the rear baffle (21), the left baffle (23) and the right baffle (24); Stainless steel sheets (28), stainless steel sheets (28) are respectively and fixedly installed on the left baffle (23) and the right baffle (24) by screws (29), there are two groups of the stainless steel sheets (28), a stainless steel strip (210) is welded between the two groups of the stainless steel sheets (28), the stainless steel strip (210) is in an inverted "V" shape, the bottom end of the stainless steel strip (210) is provided with an arc structure, and this arc structure is located outside the probe (12), and the upper edge of the arc structure is slightly higher than the upper part of the probe (12), and the lower edge of the arc structure is flush with the bottom of the probe (12).
2. The protective cover for an outdoor combustible gas alarm according to claim 1, characterized in that: A through mounting hole is provided on the mounting plate (13), and the center of the cross-section of the mounting hole and the center of the alarm positioning hole (22) are coaxial, and there are multiple groups of the mounting plate (13) and the alarm positioning hole (22).
3. The protective cover for an outdoor combustible gas alarm according to claim 1, characterized in that: The outer walls of the upper and lower ends of the left baffle (23) and the right baffle (24) are inclined.
4. The protective cover for an outdoor combustible gas alarm according to claim 1, characterized in that: When the arched cover (26) is closed, the upper edges of the rear baffle (21), the left baffle (23) and the right baffle (24) are embedded in the groove (27).
5. A protective cover for an outdoor combustible gas alarm according to claim 1, characterized in that: The length of the rear baffle (21) and the heights of the left baffle (23) and the right baffle (24) are both larger than the length of the part of the combustible gas alarm body (1) above the probe (12), and the widths of the left baffle (23) and the right baffle (24) are both larger than the width of the part of the combustible gas alarm body (1) above the probe (12).
6. A protective cover for an outdoor combustible gas alarm according to claim 1, characterized in that: An auxiliary component (3) is further provided outside the combustible gas alarm body (1), and the auxiliary component (3) includes a hinge (31), one end of a front door (32) is hinged and installed on the front end of the left baffle (23) through the hinge (31), and a handle (33) is fixedly installed at the other end of the front door (32).
7. A protective cover for an outdoor combustible gas alarm according to claim 6, characterized in that: Close the arched cover (26) so that the upper edge of the front door (32) is also embedded in the groove (27).