Household gas and methane two-in-one detection alarm

Abstract

The utility model relates to the technical field of gas detection alarms, and discloses a household gas and methane two-in-one detection alarm which comprises an upper shell and a bottom shell, the upper shell and the bottom shell are connected in a clamped mode, a main control board is connected in an inner cavity of the upper shell in a clamped mode, a wire is arranged on the main control board, and the wire is connected with the bottom shell in a clamped mode. The top of the bottom shell is provided with a wire slot for a wire to pass through. According to the household gas and methane two-in-one detection alarm, the clamping head end of the PCB fixing buckle penetrates through the PCB and is clamped on the PCB, the PCB is clamped in the upper shell, and the upper shell and the fixing plate can be quickly mounted and fixed through clamping mounting, so that the upper shell is aligned with the bottom shell; the four shell fixing clamping seats correspondingly enter the four shell fixing clamping buckles to be clamped, so that the upper shell and the bottom shell are fixed together, the upper shell and the upper shell and the bottom shell are fixed in a clamping installation mode, the installation procedure of fixing through screws is reduced, the assembly complexity is reduced, and production and assembly are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection alarms, in particular to a two-in-one detection alarm for household gas and methane. Background Art

[0002] With the increasing demand for energy in modern households, coal gas and natural gas are becoming more and more widely used as the main energy supply methods in households. However, while these energy sources bring convenience, they are also accompanied by certain safety hazards. For example, the leakage of coal gas and methane may cause serious accidents such as fire and explosion. Therefore, it is particularly important to develop a home alarm that can detect coal gas and methane leaks at the same time.

[0003] Existing detection alarms mostly use low-cost sensors for detecting a single gas, and there are relatively few two-in-one sensors. It is impossible to use one alarm to detect two gases at the same time. In addition, when the detection alarm is generated, a PCB board needs to be installed inside it. When fixing the PCB board, it is necessary to fix the PCB board with screws, which makes the assembly more complicated and is not conducive to rapid production and assembly.

[0004] For this reason, we propose a two-in-one detection alarm for household gas and methane. Utility Model Content

[0005] The purpose of the utility model is to provide a two-in-one detection alarm for household gas and methane to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A household gas and methane two-in-one detection alarm comprises: an upper shell and a bottom shell, wherein the upper shell and the bottom shell are connected by clamping, a main control board is clamped in the inner cavity of the upper shell, a wire is arranged on the main control board, and a wire groove is provided on the top of the bottom shell for the wire to pass through;

[0008] The main control board includes a PCB board, and sensor 1, sensor 2 and a 4G module are respectively installed on an end surface of the PCB board close to the bottom shell. Sensor 1 is used to detect coal gas, and sensor 2 is used to detect methane.

[0009] As an improved technical solution, two PCB fixing buckles are installed at equal intervals on the annular edge of the inner wall of the upper shell, four buckle grooves corresponding to the two PCB fixing buckles are opened on the peripheral surface of the outer wall of the PCB board, and the PCB fixing buckles pass through the buckle grooves and are clamped on the PCB board.

[0010] As an improved technical solution, four shell fixing sockets are installed at equal intervals on the annular edge of the inner wall of the upper shell, and four shell fixing buckles corresponding to and clamped with the shell fixing sockets are installed at equal intervals on the annular edge of the inner wall of the bottom shell.

[0011] As an improved technical solution, three groups of vertical bars are installed at equal intervals on the annular edge of the inner wall of the bottom shell.

[0012] As an improved technical solution, it also includes a fixing plate, hooks are installed at the upper positions on both sides of the front side of the fixing plate and at the lower position of the entire front side of the fixing plate, and three hook grooves engaged with the hooks are arranged on the back side of the bottom shell.

[0013] As an improved technical solution, fixing holes are provided at the upper and lower positions of the middle portion of the front side of the fixing plate, and adhesive is bonded to an end surface of the fixing plate away from the bottom shell.

[0014] As an improved technical solution, a screen cavity is provided at the center of a circle of an end surface of the upper shell away from the bottom shell, and an acrylic screen is installed inside the screen cavity.

[0015] As an improved technical solution, a button module is installed at a lower position of one end surface of the PCB board away from the bottom shell, a key hole is opened at a position of the upper shell facing the button module, and a button shell engaged with the button module is arranged inside the key hole.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model discloses that when installing the main control board, the end face of the PCB board away from the 4G module is brought close to the upper shell, so that the two symmetrical buckle grooves are aligned with the PCB fixing buckles, and then the PCB board is pushed toward the inside of the upper shell, so that the head end of the PCB fixing buckle passes through the PCB board and is clamped on the PCB board, and the PCB board is clamped inside the upper shell. The clamping installation can quickly realize the installation and fixation between the upper shell and the fixing plate, align the upper shell with the bottom shell, and align the four shell fixing clamping seats with the four shell fixing buckles, and finally make the four shell fixing clamping seats enter the four shell fixing buckles for clamping, so that the upper shell and the bottom shell are fixed together. The clamping installation adopts The upper shell and the upper shell and the bottom shell are fixed in the installation method, which reduces the installation process of fixing with screws, reduces the complexity of assembly, and is conducive to production and assembly; the fixing plate is installed on the wall. One method is to directly bond it to the wall through the adhesive backing to achieve punch-free installation, and the other method is to fix it on the wall through the fixing hole with expansion screws to achieve installation. There are two installation methods for users to choose from. When the detection alarm is installed, the fixing plate is first fixed to the wall, and the detection alarm is installed on the fixing plate by clamping the hook on the fixing plate with the hook groove on the bottom shell. The product can be removed when operation is required without removing the mounting screws or adhesive backing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a two-in-one detection alarm for household gas and methane;

[0019] Figure 2 A schematic diagram of the explosion structure of a two-in-one detection alarm for household gas and methane;

[0020] Figure 3 This is a schematic diagram of the structure of a main control board in a two-in-one detection alarm for household gas and methane;

[0021] Figure 4 This is a schematic diagram of the internal structure of the upper shell of a two-in-one detection alarm for household gas and methane;

[0022] Figure 5 The present invention is a schematic diagram of the internal structure of the bottom shell of a two-in-one detection alarm for household gas and methane.

[0023] In the figure: 1. upper shell; 11. key hole; 12. key shell; 13. acrylic screen; 14. screen cavity; 15. PCB fixing buckle; 16. shell fixing base; 2. bottom shell; 21. wire groove; 22. hook groove; 23. shell fixing buckle; 24. vertical bar; 3. fixing plate; 31. fixing hole; 32. hook; 4. main control board; 41. PCB board; 42. sensor one; 43. buckle groove; 44. sensor two; 45. 4G module; 5. wire. DETAILED DESCRIPTION

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

[0025] See also Figures 1 to 5 The utility model proposes a technical solution, a household gas and methane two-in-one detection alarm, comprising: an upper shell 1 and a bottom shell 2, and the upper shell 1 and the bottom shell 2 are connected by clamping, a main control board 4 is clamped in the inner cavity of the upper shell 1, and a wire 5 is arranged on the main control board 4, and the wire 5 consists of a power line and a manipulator control line, and a wire groove 21 for the wire 5 to pass through is opened on the top of the bottom shell 2;

[0026] The main control board 4 includes a PCB board 41. An NTC thermistor acquisition circuit is added to the PCB board 41 to calculate the ambient temperature and perform temperature compensation. This allows the product to adapt to northern and southern environments and improve accuracy and reliability. A low-power microcontroller, a power-off detection circuit, and a rechargeable battery are used to ensure the accuracy of the product's clock and event records, thereby ensuring long-term and reliable operation of the product. To reduce power consumption and waste of electric power resources, sensor 1 42, sensor 2 44 and 4G module 45 are respectively installed on one end surface of PCB board 41 close to bottom shell 2. Concentration data and abnormal events such as alarm and fault can be intermittently reported through 4G module 45 to report to cloud platform in real time, and users can be notified by phone or SMS. Sensor 1 42 is used to detect coal gas, and sensor 2 44 is used to detect methane. The setting of sensor 1 42 and sensor 2 44 can detect both coal gas and methane at the same time. Sensor 1 42 and sensor 2 44 are semiconductor sensors. Semiconductor sensors with good long-term stability and long service life are used in circuit design. The sensor has good linearity, good response, fast recovery time, good vibration resistance, strong anti-interference and anti-silicon poisoning, and good adaptability to high and low temperature operation.

[0027] The upper shell 1 and the upper shell 1 and the bottom shell 2 are fixed by a snap-fit ​​installation method, which reduces the installation process of screw fixing, reduces the assembly complexity, and facilitates production and assembly.

[0028] Two PCB fixing buckles 15 are installed at equal intervals on the annular edge of the inner wall of the upper shell 1, and four buckle grooves 43 corresponding to the two PCB fixing buckles 15 are opened on the peripheral surface of the outer wall of the PCB board 41, and the PCB fixing buckle 15 passes through the buckle grooves 43 and is clamped on the PCB board 41, and the clamping head end of the PCB fixing buckle 15 passes through the PCB board 41 and is clamped on the PCB board 41, and the PCB board 41 is clamped inside the upper shell 1. The clamping installation can quickly realize the installation and fixation between the upper shell 1 and the fixing plate 3. The setting of the four buckle grooves 43 and the symmetrical two sensors 42 are grouped in pairs corresponding to the two PCB fixing buckles 15. When the staff takes it to the PCB board 41, no matter what state it is in with the PCB board 41, the two buckle grooves 43 can be quickly selected to correspond to the PCB fixing buckles 15 for clamping, thereby improving the efficiency of the assembly.

[0029] Four shell fixing sockets 16 are also installed at equal intervals on the annular edge of the inner wall of the upper shell 1, and four shell fixing buckles 23 corresponding to and engaged with the shell fixing sockets 16 are installed at equal intervals on the annular edge of the inner wall of the bottom shell 2, so that the four shell fixing sockets 16 are aligned with the four shell fixing buckles 23, and finally the four shell fixing sockets 16 are correspondingly inserted into the internal parts of the four shell fixing buckles 23 for engagement, thereby fixing the upper shell 1 and the bottom shell 2 together.

[0030] Three groups of vertical bars 24 are installed at equal intervals on the annular edge of the inner wall of the bottom shell 2 .

[0031] It also includes a fixing plate 3 , hooks 32 are installed at the upper positions on both sides of the front side of the fixing plate 3 and at the lower position of the entire front side of the fixing plate 3 , and three hook grooves 22 engaged with the hooks 32 are arranged on the back side of the bottom shell 2 .

[0032] Fixing holes 31 are provided at the upper and lower positions of the middle of the front side of the fixing plate 3 , and adhesive is bonded to an end surface of the fixing plate 3 away from the bottom shell 2 .

[0033] When the detection alarm is installed, the fixing plate 3 is first fixed on the wall, and the detection alarm is installed on the fixing plate 3 by clamping the hook 32 on the fixing plate 3 with the hook groove 22 on the bottom shell 2. The product can be removed when operation is required without removing the installation screws or the adhesive on the back.

[0034] A screen cavity 14 is formed at the center of one end surface of the upper shell 1 away from the bottom shell 2 , and an acrylic screen 13 is installed inside the screen cavity 14 .

[0035] A button module is installed at a lower position of one end surface of the PCB board 41 away from the bottom shell 2. A key hole 11 is opened at a position of the upper shell 1 facing the button module. A button shell 12 is arranged inside the key hole 11 to be engaged with the button module.

[0036] The working principle of the utility model is:

[0037] When in use, when installing the main control board 4, bring the end surface of the PCB board 41 away from the 4G module 45 close to the upper shell 1, align the two symmetrical buckle grooves 43 with the PCB fixing buckles 15, and then push the PCB board 41 toward the inside of the upper shell 1, so that the head end of the PCB fixing buckle 15 passes through the PCB board 41 and is clamped on the PCB board 41;

[0038] Align the upper shell 1 with the bottom shell 2, and align the four shell fixing seats 16 with the four shell fixing buckles 23, and finally make the four shell fixing seats 16 enter the four shell fixing buckles 23 to be clamped, so as to fix the upper shell 1 with the bottom shell 2;

[0039] The process of installing the fixing plate 3 on the wall is as follows:

[0040] One way is to directly adhere to the wall through the adhesive, realizing punch-free installation, and the other way is to fix it on the wall through the fixing hole 31 with an expansion screw to realize installation. There are two installation ways for users to choose.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A two-in-one household gas and methane detection alarm, characterized by: include: An upper shell (1) and a bottom shell (2), and the upper shell (1) and the bottom shell (2) are connected by clamping, a main control board (4) is clamped in the inner cavity of the upper shell (1), a wire (5) is arranged on the main control board (4), and a wire groove (21) for the wire (5) to pass through is opened on the top of the bottom shell (2); The main control board (4) comprises a PCB board (41), and a sensor 1 (42), a sensor 2 (44) and a 4G module (45) are respectively installed at an end surface of the PCB board (41) close to the bottom shell (2), wherein the sensor 1 (42) is used to detect coal gas, and the sensor 2 (44) is used to detect methane.

2. A household gas and methane two-in-one detection alarm according to claim 1, characterized in that: Two PCB fixing buckles (15) are installed at equal intervals on the annular edge of the inner wall of the upper shell (1), four buckle grooves (43) corresponding to the two PCB fixing buckles (15) are opened on the peripheral surface of the outer wall of the PCB board (41), and the PCB fixing buckles (15) pass through the buckle grooves (43) and are clamped on the PCB board (41).

3. A household gas and methane two-in-one detection alarm according to claim 2, characterized in that: Four shell fixing seats (16) are installed at equal intervals on the annular edge of the inner wall of the upper shell (1), and four shell fixing buckles (23) corresponding to and snapping with the shell fixing seats (16) are installed at equal intervals on the annular edge of the inner wall of the bottom shell (2).

4. A household gas and methane two-in-one detection alarm according to claim 3, characterized in that: Three groups of vertical bars (24) are installed at equal intervals on the annular edge of the inner wall of the bottom shell (2).

5. A household gas and methane two-in-one detection alarm according to claim 4, characterized in that: It also comprises a fixing plate (3), hooks (32) are installed at upper positions on both sides of the front of the fixing plate (3) and at lower positions on the entire front of the fixing plate (3), and the back of the bottom shell (2) is provided with three hook grooves (22) which are engaged with the hooks (32).

6. A household gas and methane two-in-one detection alarm according to claim 5, characterized in that: Fixing holes (31) are provided at the upper and lower positions of the middle of the front side of the fixing plate (3), and a backing adhesive is bonded to an end surface of the fixing plate (3) away from the bottom shell (2).

7. A two-in-one household gas and methane detection alarm according to claim 6, characterized in that: A screen cavity (14) is provided at the center of a circle of one end surface of the upper shell (1) away from the bottom shell (2), and an acrylic screen (13) is installed inside the screen cavity (14).

8. A two-in-one household gas and methane detection alarm according to claim 7, characterized in that: A button module is installed at a lower position of an end surface of the PCB board (41) away from the bottom shell (2), and a key hole (11) is provided at a position of the upper shell (1) facing the button module. A button shell (12) is provided inside the key hole (11) and is engaged with the button module.

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