Household combustible gas alarm

Abstract

The utility model relates to the technical field of combustible gas alarms, in particular to a household combustible gas alarm which comprises a shell, a gas inlet groove, a first clamping plate, a second clamping plate, a conductive column, a fan assembly, a wrapping post, a mounting hole, a first magnetic piece, a fan frame, a fan body, a clamping block, a conductive arc-shaped piece and a second magnetic piece. According to the utility model, the structure is simple, the installation direction of the fan assembly can be flexibly adjusted according to the installation position of the shell, gas is promoted to enter the shell to the greatest extent, the fan body operates to realize efficient heat dissipation, the detection accuracy and the equipment stability are ensured, the fan assembly is convenient to assemble and disassemble, and the conductive column is contacted with the conductive arc-shaped sheet to complete electrical connection. According to the alarm, the problems of gas entering, heat dissipation, installation and maintenance, line arrangement and the like are effectively solved, and the use convenience and safety are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to combustible gas alarm technical field, concretely is a kind of household combustible gas alarm. BACKGROUND

[0002] With the improvement of people's living standards, gas is more and more common in the use of family, but the security risks brought by gas leakage cannot be ignored, and household combustible gas alarm is used to detect combustible gas leakage in the home environment, to protect life and property safety. The existing alarm has poor heat dissipation and gas circulation structure design during use, and the heat generated by the equipment during work is difficult to effectively dissipate, which not only affects the stability and service life of internal components, but also may cause detection delay or inaccuracy due to poor gas circulation, and there are certain deficiencies. UTILITY MODEL CONTENT

[0003] The utility model aims at providing a kind of household combustible gas alarm to solve the technical problems proposed above.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of household combustible gas alarm, including shell, shell is rectangular shell, the upper, lower, left, right four side plates of shell are all set with air inlet groove, the four side plates of shell are all set with clamping piece, the clamping piece is composed of first clamping plate and second clamping plate, the first clamping plate and second clamping plate are all set with clamping groove, the clamping groove of first clamping plate and second clamping plate is all set with electrically conductive column, the first clamping plate and second clamping plate correspond to the two ends of air inlet groove, further including fan assembly clamped in the bracket of first clamping plate and second clamping plate, the fan assembly is composed of fan frame, fan body, clamping block and electrically conductive arc-shaped sheet, the two sides of fan frame are all set with the clamping block compatible with the clamping groove of first clamping plate and second clamping plate, the one side of clamping block is provided with electrically conductive arc-shaped sheet, when clamping block is slidably installed in the clamping groove of first clamping plate and second clamping plate, electrically conductive arc-shaped sheet is in contact with electrically conductive column, the one side of clamping block is provided with arc-shaped groove, electrically conductive arc-shaped sheet is embedded and installed in arc-shaped groove, the fan body is composed of motor and fan blade, the fan blade is installed in the output end of motor, and the fan body is installed at the center of fan frame.

[0005] Preferably, mounting holes for overall installation and fixation of the device are formed on the back plate of the shell, a power connector is installed on one side of the shell, and a winding column is installed at the power interface of the shell for winding of excess power lines.

[0006] Preferably, the electrically conductive column in the first and second clamping plates is electrically connected with the circuit board assembly arranged in the shell, and the circuit board assembly is mainly composed of a PCB board, a chip, a buzzer, a capacitor, a resistor and the like, which is prior art and will not be described in detail, and the circuit board assembly is integrated with a PLC for controlling the on-off and working cycle of the fan assembly.

[0007] Preferably, a first magnetic attraction piece is embedded and mounted at one end of the clamping groove of the first and second clamping plates, and a second magnetic attraction piece is embedded and mounted at one end of the clamping block, and when the clamping block is slidingly mounted in the clamping groove, the second magnetic attraction piece is magnetically attracted to the first magnetic attraction piece.

[0008] Preferably, after the fan assembly is installed, the air inlet direction is inward, and the clamping block of the fan assembly and the clamping groove are provided with fool-proof design, and the purpose of fool-proof is achieved by the different sizes of the clamping groove on the clamping plate and the clamping block.

[0009] Compared with the prior art, the alarm of the utility model has the beneficial effects that:

[0010] The utility model has the advantages of simple structure, flexible adjustment of the installation direction of the fan assembly according to the installation position of the shell, maximum entry of gas into the shell, high-efficiency heat dissipation of the fan body, guarantee of detection accuracy and equipment stability, convenient installation and dismounting of the fan assembly, completion of electrical connection by contact of the electrically conductive column and the electrically conductive arc-shaped piece, simplification of circuit wiring, solution of the problems of gas entry, heat dissipation, installation and maintenance and line arrangement of the alarm, and improvement of use convenience and safety. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0012] Figure 2 It is a bottom view three-dimensional structure schematic view of the utility model;

[0013] Figure 3 It is a rear view three-dimensional structure schematic view of the utility model;

[0014] Figure 4 It is a fan assembly structure schematic view of the utility model;

[0015] Figure 5 It is a main view of the shell of the utility model.

[0016] In the drawing: 1, shell; 2, air inlet groove; 3, first clamping plate; 4, second clamping plate; 5, electrically conductive column; 6, fan assembly; 7, winding column; 8, mounting hole; 9, first magnetic attraction piece; 61, fan frame; 62, fan body; 63, clamping block; 64, electrically conductive arc-shaped piece; 65, second magnetic attraction piece. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary technical personnel in the field without creative labor fall within the protection scope of the utility model.

[0018] Please refer to Figures 1 to 4 The utility model provides technical scheme: a kind of domestic combustible gas alarm, air inlet groove 2 is set on the four side panels of shell 1, clamping piece is arranged on the four side panels of shell 1, clamping piece is made of first clamping plate 3 and second clamping plate 4, clamping groove is set on the first clamping plate 3 and second clamping plate 4, electrically conductive column 5 is arranged in the clamping groove of first clamping plate 3 and second clamping plate 4, first clamping plate 3 and second clamping plate 4 are located at the two ends of air inlet groove 2 correspondingly, further including fan assembly 6 clamped in the bracket of first clamping plate 3 and second clamping plate 4, fan assembly 6 is made of fan frame 61, fan body 62, clamping block 63 and electrically conductive arc piece 64, the two sides of fan frame 61 are provided with the clamping block 63 compatible with the clamping groove of first clamping plate 3 and second clamping plate 4, electrically conductive arc piece 64 is provided on one side of clamping block 63, when clamping block 63 is slidably installed in the clamping groove of first clamping plate 3 and second clamping plate 4, electrically conductive arc piece 64 is in contact with electrically conductive column 5, one side of clamping block 63 is provided with arc groove, electrically conductive arc piece 64 is embedded and installed in arc groove, fan body 62 is made of motor and fan blade, and fan blade is installed on the output end of motor, and fan body 62 is installed at the center of fan frame 61.

[0019] Further, mounting hole 8 for the overall installation of the device is formed on the back plate of shell 1, a power connector is mounted on one side of shell 1, and a winding column 7 is mounted at the power supply interface of shell 1 to arrange the excess power line and avoid winding and keep the appearance clean.

[0020] Further, the electrically conductive column 5 in the first clamping plate 3 and the second clamping plate 4 is electrically connected with the circuit board assembly in the shell 1, the circuit board assembly is prior art and will not be described in detail, and PLC is integrated on the circuit board assembly, the PLC is set with a program to control the on-off of fan assembly 6 and the working cycle.

[0021] Further, a first magnetic attraction piece 9 is embedded and installed at one end of the clamping groove of the first clamping plate 3 and the second clamping plate 4, and a second magnetic attraction piece 65 is embedded and installed at one end of the clamping block 63, and when the clamping block 63 is slidably installed in the clamping groove, the second magnetic attraction piece 65 is magnetically attracted to the first magnetic attraction piece 9.

[0022] Furthermore, after the fan assembly 6 is installed on 1, the air intake direction is to intake air into 1. The card block 63 of the fan assembly 6 and the card slots of 3 and 4 are all equipped with a foolproof design. The foolproof purpose is achieved by the difference in the size of the card slots of the first card plate 3 and the second card plate 4 and the size of 63.

[0023] The working process of this utility model is as follows:

[0024] like Figure 1 - Figure 4 As shown, when using this device, the fan assembly 6 is installed on the side of the housing 1 where air is not easily introduced, according to the installation position of the housing 1. During installation, the locking block 63 slides into the slots of the first locking plate 3 and the second locking plate 4, and is magnetically fixed to the first magnetic locking plate 9 by the second magnetic suction piece 65. The conductive arc-shaped piece 64 contacts the conductive post 5, so that the fan body 62 is energized. When the fan assembly 6 is working, it drives the air to flow. The air enters through the air inlet slot 2 of the side plate of the housing 1, which not only ensures that the combustible gas can fully enter the housing 1 for detection, but also removes the heat inside the housing 1 through the air flow, thus achieving heat dissipation of the housing 1. The installation position of the fan assembly 6 can be selected according to the actual situation to ensure that the gas enters the housing 1 to the maximum extent and effectively dissipates heat inside the device, ensuring the sensitivity of the alarm.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A household combustible gas alarm, characterized in that: Includes a housing (1), and each of the four side plates of the housing (1) is provided with an air inlet groove (2). Each of the four side plates of the housing (1) is provided with a clip, which is composed of a first clip plate (3) and a second clip plate (4). Each of the first clip plate (3) and the second clip plate (4) is provided with a slot. Each of the slots of the first clip plate (3) and the second clip plate (4) is provided with a conductive post (5). The first clip plate (3) and the second clip plate (4) are located at the two ends of the air inlet groove (2). It also includes a fan assembly (6) that is snapped into the brackets of the first card plate (3) and the second card plate (4). The fan assembly (6) consists of a fan frame (61), a fan body (62), a snap block (63) and a conductive arc plate (64). Both sides of the fan frame (61) are provided with snap blocks (63) that are adapted to the slots of the first card plate (3) and the second card plate (4). A conductive arc plate (64) is provided on one side of the snap block (63).

2. The household combustible gas alarm according to claim 1, characterized in that: When the card block (63) is slidably installed in the card slots of the first card plate (3) and the second card plate (4), the conductive arc-shaped piece (64) contacts the conductive post (5).

3. The household combustible gas alarm according to claim 1, characterized in that: The back plate of the housing (1) is provided with mounting holes (8) for overall installation and fixing of the device. A power connector is installed on one side of the housing (1), and a winding post (7) is installed at the power interface of the housing (1).

4. The household combustible gas alarm according to claim 1, characterized in that: The first magnetic piece (9) is embedded in one end of the card slot of the first card plate (3) and the second card plate (4), and the second magnetic piece (65) is embedded in one end of the card block (63). When the card block (63) is slidably installed in the card slot, the second magnetic piece (65) and the first magnetic piece (9) are magnetically attracted together.

5. The household combustible gas alarm according to claim 1, characterized in that: The card block (63) has an arc-shaped groove on one side, and a conductive arc-shaped piece (64) is embedded in the arc-shaped groove. The fan body (62) is composed of a motor and fan blades. The fan blades are installed at the output end of the motor, and the fan body (62) is installed at the center of the fan frame (61).

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