Combustible gas alarm controller convenient to maintain

Abstract

The utility model relates to the technical field of alarm controllers, and discloses a combustible gas alarm controller convenient to maintain, which comprises a front shell, a rear shell and a shell cover, an assembling mechanism is arranged between the front shell and the rear shell, and the shell cover is hinged with the front shell through a hinge; the assembling mechanism comprises a first connecting block, a second connecting block, a clamping frame and a U-shaped clamping plate, the first connecting block and the second connecting block are fixedly installed on one side of the front shell and one side of the rear shell correspondingly, by arranging the assembling mechanism, a worker can disassemble the front shell and the rear shell of the gas alarm controller conveniently, and therefore the worker can maintain the gas alarm controller conveniently, the maintenance efficiency of the worker is improved, and the labor intensity of the worker is reduced. The problems that most of existing gas alarm controller shells are connected through fastening screws, the fastening screws are prone to rusting after being used for a long time, the jamming phenomenon is caused in the disassembling process, a specific wrench tool is needed in the disassembling process of the fastening screws, personnel disassembling is not convenient, and the disassembling cost is high are solved. And the maintenance efficiency of personnel is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of alarm controllers, in particular to a combustible gas alarm controller which is easy to maintain. Background Art

[0002] The combustible gas alarm can be used to detect the concentration of combustible gas in the air in real time. When the combustible gas alarm detects that the combustible gas concentration reaches the alarm value set by the alarm, the combustible gas alarm will send out sound and light alarm signals to remind people to take safety measures such as evacuation, forced exhaust, and equipment shutdown, so as to avoid the occurrence of explosion accidents; the existing gas alarm controller shells are usually connected by fastening screws, and the fastening screws are prone to rust after long-term use, resulting in jamming during disassembly, and special wrench tools are required to disassemble the fastening screws, which is inconvenient for people to disassemble, thereby affecting the maintenance efficiency of people. For this reason, we propose a combustible gas alarm controller that is easy to maintain. Utility Model Content

[0003] The purpose of the utility model is to provide a combustible gas alarm controller that is easy to maintain and solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a combustible gas alarm controller that is easy to maintain, comprising a front shell, a rear shell and a shell cover, an assembly mechanism being provided between the front shell and the rear shell, and the shell cover being hinged to the front shell via a hinge;

[0005] The U-shaped card plate is movably connected to the inner wall of the movable groove, and a limiting groove is provided on the inner wall of the card frame, and the U-shaped card plate movably passes through the inner wall of the movable groove and is inserted into the limiting groove. A connecting rod is fixedly installed on the front side of the U-shaped card plate, and a rod hole is provided between the front side of the connecting block and the inner wall of the movable groove. The connecting rod movably passes through the rod hole, and a spring is surrounded by the outer wall of the connecting rod, and the spring is fixedly installed between the front side of the U-shaped card plate and the inner wall of the movable groove.

[0006] Preferably, a connecting shaft is fixedly installed on the inner wall of the rotating groove, an axis hole is opened at one end of the clamping frame, the connecting shaft movably passes through the axis hole, and a torsion spring is fixedly connected between the outer wall of the connecting shaft and the inner wall of the axis hole. By setting the torsion spring, the clamping frame can automatically reset when it is not subject to force.

[0007] Preferably, the U-shaped card plate is adapted to the limiting groove. By providing the U-shaped card plate, the U-shaped card plate can be inserted into the limiting groove, thereby limiting and fixing the card frame.

[0008] Preferably, the connecting rod is adapted to the rod hole, and a pressing plate is fixedly mounted on one end of the connecting rod. By providing the pressing plate, it is convenient for personnel to press the connecting rod through the pressing plate, thereby facilitating operation.

[0009] Preferably, positioning blocks are fixedly installed on the back of the front shell near the four corners, and positioning grooves are opened on the front of the rear shell near the four corners. The positioning blocks are inserted into the positioning grooves. By setting the positioning blocks and positioning grooves, the front shell and the rear shell can be assisted in assembly and connection, the installation accuracy can be ensured, and the connection strength between the front shell and the rear shell can be improved.

[0010] Preferably, a sealing gasket is fixedly installed on the back of the front shell, and the sealing gasket is tightly fitted with the front of the rear shell. By providing the sealing gasket, the sealing performance of the connection between the front shell and the rear shell can be increased.

[0011] The utility model provides a combustible gas alarm controller that is easy to maintain. The combustible gas alarm controller that is easy to maintain has the following beneficial effects:

[0012] (1) The combustible gas alarm controller that is easy to maintain can be easily disassembled from the front shell and the rear shell of the gas alarm controller by providing an assembly mechanism, thereby facilitating maintenance by personnel and improving maintenance efficiency;

[0013] (2) The combustible gas alarm controller, which is easy to maintain, can assist in the assembly and connection between the front shell and the rear shell by setting the positioning blocks and positioning grooves, thereby ensuring the installation accuracy and improving the connection strength between the front shell and the rear shell. By setting the sealing gasket, the sealing performance of the connection between the front shell and the rear shell can be increased. The structure is simple and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a side sectional structural diagram of the assembly mechanism of the utility model;

[0016] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0017] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle B part;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the positioning block of the utility model.

[0019] In the figure: 1. front shell; 2. rear shell; 3. shell cover; 4. assembly mechanism; 5. positioning block; 6. positioning groove; 7. sealing gasket; 401. connecting block 1; 402. connecting block 2; 403. card frame; 404. rotating groove; 405. connecting shaft; 406. shaft hole; 407. torsion spring; 408. card slot; 409. moving groove; 410. U-shaped card plate; 411. limiting groove; 412. connecting rod; 413. rod hole; 414. spring; 415. pressing plate. DETAILED DESCRIPTION

[0020] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] like Figure 1-5 As shown, the utility model provides a technical solution: a combustible gas alarm controller that is easy to maintain, comprising a front shell 1, a rear shell 2 and a shell cover 3, an assembly mechanism 4 is provided between the front shell 1 and the rear shell 2, and the shell cover 3 is hinged to the front shell 1 through a hinge;

[0024] The assembly mechanism 4 includes a connecting block 1 401, a connecting block 2 402, a card frame 403 and a U-shaped card plate 410. The connecting block 1 401 and the connecting block 2 402 are fixedly mounted on one side of the front shell 1 and the rear shell 2 respectively. A rotation groove 404 is provided at the top of the rear side of the connecting block. One end of the card frame 403 is rotatably connected to the inner wall of the rotation groove 404. A card slot 408 is provided at the top of the front side of the connecting block 1 401. The card frame 403 is clamped in the card slot 408. A movable slot 409 is provided inside the connecting block 1 401. The U-shaped card plate 410 is connected to the movable slot 409. The inner wall of the movable groove 409 is slidably connected, and a limiting groove 411 is provided on the inner wall of the card frame 403. The U-shaped card plate 410 is movable through the inner wall of the movable groove 409 and inserted into the limiting groove 411. A connecting rod 412 is fixedly installed on the front of the U-shaped card plate 410. A rod hole 413 is provided between the front of the connecting block and the inner wall of the movable groove 409. The connecting rod 412 is movable through the rod hole 413. A spring 414 is surrounded by the outer wall of the connecting rod 412. The spring 414 is fixedly installed between the front of the U-shaped card plate 410 and the inner wall of the movable groove 409.

[0025] Specifically, the above technical solution is that when the combustible gas alarm controller that is easy to maintain needs to be disassembled for maintenance, the button 415 is pressed, and the button 415 drives the U-shaped card plate 410 to move into the movable groove 409, so that the U-shaped card plate 410 is disengaged from the limiting groove 411. When the U-shaped card plate 410 is completely disengaged from the limiting groove 411, the card frame 403 will rotate upward under the reset force of the torsion spring 407, so that the card frame 403 is disengaged from the card groove 408, so that the card frame 403 no longer limits the connecting block 401. At this time, the front shell 1 or the rear shell 2 is pulled, and the front shell 1 and the rear shell 2 will be separated and disassembled. Through the above structure, it is convenient for personnel to disassemble the front shell 1 and the rear shell 2 of the gas alarm controller, so as to facilitate personnel to maintain it and improve personnel maintenance efficiency. It solves the problem that most of the existing gas alarm controller shells are connected by fastening screws, and the fastening screws are prone to rust after long-term use, resulting in jamming during disassembly, and a specific wrench tool is required when removing the fastening screws, which is not convenient for personnel to disassemble, thereby affecting the maintenance efficiency of personnel.

[0026] Furthermore, a connecting shaft 405 is fixedly mounted on the inner wall of the rotating groove 404, and a shaft hole 406 is opened at one end of the clamping frame 403. The connecting shaft 405 movably passes through the shaft hole 406, and a torsion spring 407 is fixedly connected between the outer wall of the connecting shaft 405 and the inner wall of the shaft hole 406;

[0027] The torsion spring 407 is provided so that the clamping frame 403 can automatically reset when no force is applied.

[0028] Furthermore, the U-shaped clamping plate 410 is adapted to the limiting groove 411;

[0029] The U-shaped clamping plate 410 is provided so that the U-shaped clamping plate 410 can be inserted into the limiting groove 411 , thereby limiting and fixing the clamping frame 403 .

[0030] Furthermore, the connecting rod 412 is adapted to the rod hole 413, and a pressing plate 415 is fixedly mounted on one end of the connecting rod 412;

[0031] Among them, by providing the pressing plate 415, it is convenient for personnel to press the connecting rod 412 through the pressing plate 415, thereby facilitating personnel operation.

[0032] Furthermore, positioning blocks 5 are fixedly installed near the four corners on the back of the front shell 1, and positioning grooves 6 are opened near the four corners on the front of the rear shell 2, and the positioning blocks 5 are inserted into the positioning grooves 6;

[0033] Among them, by providing the positioning block 5 and the positioning groove 6, the assembly connection between the front shell 1 and the rear shell 2 can be assisted, the installation accuracy can be ensured, and the connection strength between the front shell 1 and the rear shell 2 can be improved.

[0034] Furthermore, a sealing gasket 7 is fixedly mounted on the back of the front housing 1, and the sealing gasket 7 is tightly fitted to the front of the rear housing 2;

[0035] The sealing gasket 7 is provided to enhance the sealing performance of the connection between the front shell 1 and the rear shell 2 .

[0036] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A combustible gas alarm controller that is easy to maintain, comprising a front shell (1), a rear shell (2) and a shell cover (3), characterized in that: An assembly mechanism (4) is provided between the front shell (1) and the rear shell (2), and the shell cover (3) is hingedly connected to the front shell (1) via a hinge; The assembly mechanism (4) comprises a connecting block 1 (401), a connecting block 2 (402), a card frame (403) and a U-shaped card plate (410). The connecting block 1 (401) and the connecting block 2 (402) are fixedly mounted on one side of the front shell (1) and the rear shell (2), respectively. A rotation groove (404) is provided at the top end of the rear side of the connecting block. One end of the card frame (403) is rotatably connected to the inner wall of the rotation groove (404). A card slot (408) is provided at the top end of the front side of the connecting block 1 (401). The card frame (403) is engaged in the card slot (408). A movable slot (409) is provided inside the connecting block 1 (401). The U-shaped card plate (410) is provided on the top end of the front side of the connecting block 1 (401). ) is slidably connected to the inner wall of the movable groove (409), the inner wall of the card frame (403) is provided with a limiting groove (411), the U-shaped card plate (410) is movable through the inner wall of the movable groove (409) and is inserted into the limiting groove (411), a connecting rod (412) is fixedly installed on the front of the U-shaped card plate (410), a rod hole (413) is opened between the front of the connecting block and the inner wall of the movable groove (409), the connecting rod (412) is movable through the rod hole (413), the outer wall of the connecting rod (412) is surrounded by a spring (414), and the spring (414) is fixedly installed between the front of the U-shaped card plate (410) and the inner wall of the movable groove (409).

2. The combustible gas alarm controller that is easy to maintain according to claim 1 is characterized in that: A connecting shaft (405) is fixedly mounted on the inner wall of the rotating groove (404); an axis hole (406) is provided at one end of the clamping frame (403); the connecting shaft (405) movably passes through the axis hole (406); and a torsion spring (407) is fixedly connected between the outer wall of the connecting shaft (405) and the inner wall of the axis hole (406).

3. The combustible gas alarm controller that is easy to maintain according to claim 1 is characterized in that: The U-shaped clamping plate (410) is adapted to the limiting groove (411).

4. The combustible gas alarm controller that is easy to maintain according to claim 1 is characterized in that: The connecting rod (412) is adapted to the rod hole (413), and a pressing plate (415) is fixedly mounted on one end of the connecting rod (412).

5. The combustible gas alarm controller that is easy to maintain according to claim 1 is characterized in that: Positioning blocks (5) are fixedly installed near the four corners of the back of the front shell (1), and positioning grooves (6) are opened near the four corners of the front of the rear shell (2), and the positioning blocks (5) are inserted into the positioning grooves (6).

6. The combustible gas alarm controller that is easy to maintain according to claim 1 is characterized in that: A sealing gasket (7) is fixedly mounted on the back of the front shell (1), and the sealing gasket (7) is tightly fitted to the front of the rear shell (2).

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