Gas alarm with three-color screen backlight display function

Abstract

The utility model discloses a gas alarm with a three-color screen backlight display function, which comprises an alarm, the alarm comprises a lower shell, a mainboard suite and an upper shell, the upper shell is fixed at the upper end of the lower shell through screws, and the mainboard suite is fixed inside the lower shell and the upper shell through screws; the damage prevention assembly comprises a U-shaped limiting plate, through holes, an insertion rod, a limiting block and a telescopic clamping block, the U-shaped limiting plate is fixed to the middle of the outer side of the lower shell, the through holes are formed in the two side edges of the U-shaped limiting plate, the insertion rod is inserted into the through holes, the limiting block is fixed to one end of the insertion rod, and the telescopic clamping block is movably connected to the side edge of the other end of the insertion rod. The utility model relates to an alarm, and aims to solve the problems that an existing alarm and a cable interface are mounted on the back surface of a lower shell, a cable is usually connected firstly, then the alarm is fixed on a wall surface or a pipeline, the cable is pressed for a long time and is damaged, normal use of the alarm is affected, and even mounting accidents are caused.

Description

Technical Field

[0001] This utility model relates to the field of gas alarm technology, and in particular to a gas alarm with a three-color backlight display function. Background Technology

[0002] A gas alarm with a three-color backlit display is a device used to detect toxic, harmful, or flammable gases and sound an alarm when the gas concentration exceeds the safe level. Depending on the gas concentration, the control unit drives the LCD screen's backlight to emit different colors of light. Typically, green indicates the gas concentration is within a safe range, yellow indicates the gas concentration is approaching a warning value, and red indicates the gas concentration has exceeded the safe threshold and poses a danger.

[0003] Existing alarms have cable interfaces installed on the back of the lower housing. Typically, the cable is connected first, and then the alarm is fixed to the wall or pipe. The cable is subjected to long-term pressure, which can lead to damage, affect the normal use of the alarm, and even cause installation accidents. Therefore, there is a need to provide a gas alarm with a three-color backlit display function to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a gas alarm with a three-color backlight display function to solve the problem mentioned in the background art. In existing alarms, the cable interface is installed on the back of the lower housing. Usually, the cable is connected first and then the alarm is fixed to the wall or pipe. The cable is subjected to long-term pressure, which leads to damage, affects the normal use of the alarm, and may even cause installation accidents.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a gas alarm with a three-color backlit display, comprising:

[0007] An alarm device, comprising a lower housing, a main board assembly, and an upper housing, wherein the upper housing is fixed to the upper end of the lower housing by screws, and the main board assembly is fixed inside the lower housing and the upper housing by screws;

[0008] The damage prevention component includes a U-shaped limiting plate, a through hole, a rod, a limiting block, and a telescopic locking block. The U-shaped limiting plate is fixed to the middle of the outer side of the lower housing. The through hole is opened on both sides of the U-shaped limiting plate. The rod is inserted into the through hole. The limiting block is fixed to one end of the rod. The telescopic locking block is movably connected to the other end of the rod.

[0009] Furthermore, the damage prevention component also includes a mounting plate, which is welded to both sides of the U-shaped limiting plate and fixed to the middle of the outer side of the lower housing by screws.

[0010] Furthermore, the alarm also includes a nameplate, a communication board kit, a sensor module, a sensor compartment, and a connector. The nameplate is fixed to the outside of the lower housing, the communication board kit is fixed to one end inside the lower housing, the sensor compartment is screwed to one end of the lower housing, the sensor module is fixed inside the sensor compartment and plugged into the communication board kit, and the connector is fixed to the middle of the side of the lower housing and electrically connected to the main board kit.

[0011] Furthermore, the U-shaped limiting plate is fitted over the outside of the socket, and the telescopic locking block is movably connected to the side of the through hole.

[0012] Furthermore, it also includes an anti-detachment component, which includes a baffle and a groove. The baffle is movably connected to the inner side of the U-shaped limiting plate, and the groove is formed in the middle of the upper part of the baffle.

[0013] Furthermore, the anti-detachment component also includes a spring post and an anti-slip strip. One end of the spring post is fixed to the inner top surface of the U-shaped limiting plate, and the other end is fixed to both ends of the top of the baffle. The anti-slip strip is fixed to the middle of the lower section of the baffle.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] I. This utility model, through the setting of anti-damage components, fixes the mounting plate on the U-shaped limiting plate to the lower housing, and positions the U-shaped limiting plate outside the socket. The plug of the external cable is inserted into the socket. Then, one hand pulls the cable, and the other hand inserts the plug rod into the two through holes. One end of the limiting block is attached to the side of the U-shaped limiting plate, and the telescopic block is locked on the other side of the U-shaped limiting plate. When the cable is released, the cable is located above the plug rod and inside the U-shaped limiting plate. This setting can avoid the cable plug being compressed at the connection with the socket, reducing the probability of cable breakage at the socket.

[0016] II. This utility model, through the setting of the anti-detachment component, allows one hand to hold the plug of the external cable, and the other hand to be positioned at the anti-slip strip. Pulling down the baffle causes the groove to move downward, exposing the plug. When the plug of the external cable is inserted, the baffle is released, the spring column retracts, and the baffle moves to the side of the external cable plug. This setting can prevent the plug from falling off at the socket and affecting the normal use of the alarm. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0018] Figure 1 This is a rear view of the overall structure of this utility model;

[0019] Figure 2 This is a front view of the overall structure of this utility model;

[0020] Figure 3 This is an exploded view of the alarm structure of this utility model;

[0021] Figure 4 This is a partial structural diagram of the damage prevention component and the anti-detachment component of this utility model;

[0022] Figure 5 This is a schematic diagram of the insertion rod structure of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 10. Lower housing; 11. Mainboard kit; 12. Upper housing; 13. Nameplate; 14. Communication board kit; 15. Sensor module; 16. Sensor compartment; 17. Socket; 20. U-shaped limit plate; 21. Mounting plate; 22. Through hole; 23. Insert rod; 24. Limit block; 25. Telescopic block; 30. Spring post; 31. Baffle; 32. Groove; 33. Anti-slip strip. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

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

[0028] Please see Figure 1-5 As shown, this embodiment is a gas alarm with a three-color backlit display function, including:

[0029] The alarm includes a lower housing 10, a main board assembly 11, and an upper housing 12. The upper housing 12 is fixed to the upper end of the lower housing 10 by screws, and the main board assembly 11 is fixed inside the lower housing 10 and the upper housing 12 by screws.

[0030] The alarm also includes a nameplate 13, a communication board kit 14, a sensor module 15, a sensor compartment 16, and a socket 17. The nameplate 13 is fixed to the outside of the lower housing 10, the communication board kit 14 is fixed to one end inside the lower housing 10, the sensor compartment 16 is screwed to one end of the lower housing 10, the sensor module 15 is fixed inside the sensor compartment 16 and plugged into the communication board kit 14, and the socket 17 is fixed to the middle of the side of the lower housing 10 and electrically connected to the main board kit 11.

[0031] The lower housing 10 and upper housing 12 provide protection and support. The mainboard kit 11 is the core of the alarm, containing the main circuitry and processing unit. It is responsible for controlling all functions of the alarm, including data acquisition, processing, and transmission. The nameplate 13 contains key information such as manufacturer information, model, and specifications, making it easy for users to identify and use the device. The communication board kit 14 connects the sensor module 15 and other external devices, providing data transmission functionality. The sensor module 15 is one of the key components of the alarm, responsible for collecting environmental data. The type of sensor depends on the application of the alarm. The sensor compartment 16 is used to house and protect the sensor module 15. The connector 17 connects to external cables.

[0032] The damage prevention component includes a U-shaped limiting plate 20, a through hole 22, an insert rod 23, a limiting block 24, and a telescopic locking block 25. The U-shaped limiting plate 20 is fixed to the middle of the outer side of the lower housing 10. The through hole 22 is opened on both sides of the U-shaped limiting plate 20. The insert rod 23 is inserted into the through hole 22. The limiting block 24 is fixed to one end of the insert rod 23. The telescopic locking block 25 is movably connected to the other side of the insert rod 23.

[0033] The damage prevention component also includes a mounting plate 21, which is welded to both sides of the U-shaped limiting plate 20 and fixed to the middle of the outer side of the lower housing 10 by screws;

[0034] The U-shaped limiting plate 20 covers the outside of the socket 17, and the telescopic block 25 is movably connected to the side of the through hole 22.

[0035] The U-shaped limiting plate 20 serves a limiting function, the mounting plate 21 serves a fixing function, the through hole 22 serves a connecting function, the insert rod 23 serves a supporting function, the limiting block 24 serves a limiting function, and the telescopic block 25 serves both a connecting and limiting function.

[0036] Working principle:

[0037] Fix the mounting plate 21 on the U-shaped limiting plate 20 to the lower housing 10, and position the U-shaped limiting plate 20 outside the socket 17. Insert the plug of the external cable into the socket 17. Then, pull the cable with one hand and insert the plug rod 23 into the two through holes 22 with the other hand. One end of the limiting block 24 is attached to the side of the U-shaped limiting plate 20, and the telescopic block 25 is locked on the other side of the U-shaped limiting plate 20. Release the cable. At this time, the cable is above the plug rod 23 and inside the U-shaped limiting plate 20.

[0038] This step can prevent the connection between the cable plug and the socket 17 from being compressed, reducing the probability of cable damage at the socket 17.

[0039] Please see Figure 4 This embodiment, based on the above embodiments, further includes:

[0040] The anti-detachment component includes a baffle 31 and a groove 32. The baffle 31 is movably connected to the inner side of the U-shaped limiting plate 20, and the groove 32 is opened in the middle of the upper end of the baffle 31.

[0041] The anti-detachment component also includes a spring post 30 and an anti-slip strip 33. One end of the spring post 30 is fixed to the inner top surface of the U-shaped limiting plate 20, and the other end is fixed to both ends of the top of the baffle 31. The anti-slip strip 33 is fixed to the middle of the lower section of the baffle 31.

[0042] The spring column 30 has a retractable function, the baffle 31 serves as a limit, the groove 32 facilitates the passage of cables, and the anti-slip strip 33 has an anti-slip function.

[0043] Working principle:

[0044] Hold the plug of the external cable in one hand, place the other hand on the anti-slip strip 33, and pull down the baffle 31 to move the groove 32 downward, exposing the socket 17. Plug in the external cable plug, release the baffle 31, the spring column 30 retracts, and the baffle 31 moves to the side of the external cable plug.

[0045] This step prevents the plug at port 17 from coming loose and affecting the normal use of the alarm.

[0046] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gas alarm with a three-color backlit display, characterized in that, include: An alarm device, comprising a lower housing (10), a main board assembly (11), and an upper housing (12), wherein the upper housing (12) is fixed to the upper end of the lower housing (10) by screws, and the main board assembly (11) is fixed inside the lower housing (10) and the upper housing (12) by screws; The damage prevention component includes a U-shaped limiting plate (20), a through hole (22), a rod (23), a limiting block (24), and a telescopic locking block (25). The U-shaped limiting plate (20) is fixed to the middle of the outer side of the lower housing (10). The through hole (22) is opened on both sides of the U-shaped limiting plate (20). The rod (23) is inserted into the through hole (22). The limiting block (24) is fixed to one end of the rod (23). The telescopic locking block (25) is movably connected to the other side of the rod (23).

2. A gas alarm with a three-color backlit display function according to claim 1, characterized in that, The damage prevention component also includes a mounting plate (21), which is welded to both sides of the U-shaped limiting plate (20) and fixed to the middle of the outer side of the lower housing (10) by screws.

3. A gas alarm with a three-color backlit display function according to claim 1, characterized in that, The alarm also includes a nameplate (13), a communication board kit (14), a sensor module (15), a sensor compartment (16), and a socket (17). The nameplate (13) is fixed on the outside of the lower housing (10), the communication board kit (14) is fixed inside one end of the lower housing (10), the sensor compartment (16) is screwed to one end of the lower housing (10), the sensor module (15) is fixed inside the sensor compartment (16) and plugged into the communication board kit (14), and the socket (17) is fixed in the middle of the side of the lower housing (10) and electrically connected to the main board kit (11).

4. A gas alarm with a three-color backlit display function according to claim 1, characterized in that, The U-shaped limiting plate (20) covers the outside of the socket (17), and the telescopic block (25) is movably connected to the side of the through hole (22).

5. A gas alarm with a three-color backlit display function according to claim 1, characterized in that, It also includes an anti-detachment component, which includes a baffle (31) and a groove (32). The baffle (31) is movably connected to the inside of the U-shaped limiting plate (20), and the groove (32) is opened in the middle of the upper end of the baffle (31).

6. A gas alarm with a three-color backlit display function according to claim 5, characterized in that, The anti-detachment component also includes a spring column (30) and an anti-slip strip (33). One end of the spring column (30) is fixed to the inner top surface of the U-shaped limiting plate (20), and the other end is fixed to both ends of the top of the baffle (31). The anti-slip strip (33) is fixed to the middle of the lower section of the baffle (31).

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