Gas leakage alarm device

Abstract

The utility model discloses a gas leakage alarm device, which relates to the technical field of gas monitoring and specifically comprises an alarm device body, a rotatable fixed cylinder is arranged at the center of the lower surface of the alarm device body, and a fixed barrel which can be pulled out and automatically reset is arranged at one end, far away from the alarm device body, of the fixed cylinder. According to the gas leakage alarm device, through the arrangement of structures such as the fixing barrel, the auxiliary mounting plate, the limiting block, the magnet plate and the screw rod, the effects that the gas leakage alarm device is conveniently mounted on a gas pipeline and adapts to different pipe diameters can be achieved, and when the gas pipeline mounting requirement is met, a worker pulls out the fixing barrel firstly, and then the fixing barrel is pulled out; the hinged end of the auxiliary mounting plate can be clamped into the clamping groove of the supporting block, and the tension spring generates tension to stabilize the auxiliary mounting plate. Then the screw rod is rotated, the screw rod converts rotary motion into linear motion, and the limiting blocks are driven to be close to or away from each other.

Description

Technical Field

[0001] This utility model relates to the field of gas monitoring technology, specifically a gas leak alarm device. Background Technology

[0002] Gas, a general term for gaseous fuels, releases heat through combustion and is widely used in daily life and industrial production. Natural gas is the most commonly used gas in daily life; its main component is methane, a colorless, odorless, non-toxic, and non-corrosive combustible gas. When using gas, it is essential to ensure good indoor ventilation, promptly close both the gas valve and the gas hose after use, and ensure the gas hose is tightly tightened. In the event of a gas leak, immediately turn off the gas appliance and do not operate any electrical equipment to avoid potential hazards.

[0003] Given the extreme importance of gas safety in protecting people's lives and property, gas leak alarm devices are commonly installed in homes to quickly alert staff in case of gas leaks and prevent potential risks. However, many gas leak alarm devices currently on the market have significant drawbacks, the most prominent being their extremely limited installation options. Most products only support fixed installation on walls or other surfaces. For example, applications CN202010217946.9 ("A Gas Leak Alarm Device") and CN202321840286.5 ("A Gas Alarm") both employ this conventional installation method.

[0004] In fact, gas pipeline leaks are usually concentrated at the connection points. However, due to the wide variety of building structures, the connection locations of gas pipelines vary during actual installation. Ideally, the alarm device should be able to flexibly adapt to changes in the pipeline connection location to achieve accurate monitoring. However, the devices mentioned above are all installed by directly fixing them to the wall or object with screws. This fixing method not only greatly hinders subsequent disassembly and maintenance work for workers, increasing the difficulty and time cost of operation, but also fails to meet the needs of diverse usage scenarios, resulting in a significant reduction in the convenience of the device in practical application and causing many inconveniences and troubles for users. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a gas leak alarm device that solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a gas leak alarm device, comprising an alarm device body, a rotatable fixed cylinder disposed at the center of the lower surface of the alarm device body, a fixed barrel disposed at the end of the fixed barrel away from the alarm device body that can be pulled outward and automatically reset, a connecting column fixedly connected to a plurality of support blocks on the side away from the alarm device body, an auxiliary mounting plate hinged to each opposite side of the fixed barrel that can be snapped onto the support block, two limiting blocks disposed on the opposite surfaces of the two auxiliary mounting plates that can move closer or further apart from each other, a magnetic plate bonded to the opposite surfaces of the limiting blocks, and an arc groove disposed in the middle of the opposite surfaces of the two magnetic plates.

[0009] Optionally, a connecting post is threadedly connected to the center of the lower surface of the alarm device body, and a rotation limiting circular plate is rotatably connected to the center of the connecting post on the side away from the alarm device body. The end of the fixed cylinder near the alarm device body is fixedly connected to the rotation limiting circular plate.

[0010] Optionally, the fixed bucket is sleeved on the fixed cylinder, and a tension spring with one end penetrating through the fixed cylinder and set on the fixed bucket is fixedly connected to the side of the rotation limiting circular plate away from the alarm device body.

[0011] Optionally, the free end of the auxiliary mounting plate is threaded with a screw, and one end of the screw is rotatably connected to a corresponding limiting block.

[0012] Optionally, the number of support blocks is two, and the support block has a slot adapted to the auxiliary mounting plate on the side away from the connecting column.

[0013] (III) Beneficial Effects

[0014] This utility model provides a gas leak alarm device, which has the following beneficial effects:

[0015] 1. This gas leak alarm device, through its structure consisting of a fixed bucket, auxiliary mounting plate, limiting blocks, magnetic plates, and a screw, achieves convenient installation on gas pipelines and is adaptable to different pipe diameters. When facing gas pipeline installation needs, the worker first pulls the fixed bucket outward, and the hinged end of its auxiliary mounting plate will engage with the slot of the support block. The tension spring generates tension to stabilize the auxiliary mounting plate. Then, the screw is rotated, converting the rotational motion into linear motion, driving the limiting blocks to move closer or further apart. Because the opposing surfaces of the limiting blocks are bonded with magnetic plates, and the magnetic plates have arc grooves, by adjusting the position of the limiting blocks so that the arc grooves are aligned with the gas pipeline, the gas leak alarm device can be quickly and securely installed on gas pipelines of different diameters, greatly improving installation efficiency and applicability. Furthermore, it can be installed at the interface position of the gas pipeline during the actual installation process, thus enabling immediate monitoring and alarm.

[0016] 2. This gas leak alarm device, through its structure including a fixed bucket, auxiliary mounting plate, magnetic plate, and connecting column, achieves convenient installation on iron-cased equipment and easy storage of the alarm device itself. When it is necessary to install the alarm device on equipment with an iron casing, the operator resets the fixed bucket, bringing it close to the alarm device and abutting it against the rotating limit plate. At this point, the auxiliary mounting plate, due to the release of its locking groove, can rotate freely. Rotating the auxiliary mounting plate until the magnetic plate is flush with the horizontal plane, the alarm device is easily attracted to the iron-cased equipment using the magnetism of the magnetic plate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the connecting column of this utility model from the right side.

[0019] In the diagram: 1. Alarm device body; 2. Connecting column; 3. Support block; 4. Rotation limit plate; 5. Fixing barrel; 6. Tension spring; 7. Auxiliary mounting plate; 8. Screw; 9. Limiting block; 10. Magnet plate; 11. Fixing barrel; 12. Arc groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1 to 2 This utility model provides a technical solution: a gas leak alarm device, including an alarm device body 1, wherein the alarm device body 1 is prior art and will not be described in detail. A rotatable fixed cylinder 11 is provided at the center of the lower surface of the alarm device body 1. A fixed barrel 5 that can be pulled out and automatically reset is provided at the end of the fixed cylinder 11 away from the alarm device body 1. A plurality of support blocks 3 are fixedly connected to the side of the connecting column 2 away from the alarm device body 1. An auxiliary mounting plate 7 that can be locked onto the support block 3 is hinged to both sides of the fixed barrel 5. The auxiliary mounting plate 7 is hinged to the fixed barrel 5 by a hinge. Two limiting blocks 9 that can move closer or further away from each other are provided on the opposite surfaces of the two auxiliary mounting plates 7. A magnetic plate 10 is glued to the opposite surfaces of the limiting blocks 9, and an arc groove 12 is provided in the middle of the opposite surfaces of the two magnetic plates 10.

[0022] When installing this gas leak alarm device, operators can manipulate two adjustable blocks 9 that can move closer together or separate to easily install the device onto the gas pipeline. Thanks to the movable nature of the adjustable blocks 9, the gas leak alarm can be adapted to gas pipelines of different diameters, greatly expanding its applicability. Furthermore, the auxiliary mounting plate 7 can rotate flexibly, and in conjunction with the magnetic plate 10, operators can attach the device to equipment with a metal casing. These designs significantly improve installation convenience and greatly simplify operation for operators.

[0023] Please see Figure 2 The lower surface of the alarm device body 1 is threaded with a connecting post 2. The center of the connecting post 2 away from the alarm device body 1 is rotatably connected to a rotation limiting circular plate 4. The end of the fixed cylinder 11 close to the alarm device body 1 is fixedly connected to the rotation limiting circular plate 4.

[0024] Personnel can easily remove the alarm device body 1 by simply twisting the connecting column 2, which greatly facilitates the storage of the alarm device body 1.

[0025] Please see Figure 2 The fixed barrel 5 is fitted onto the fixed cylinder 11, and the fixed barrel 5 can slide up and down on the fixed cylinder 11. A tension spring 6 with one end penetrating the fixed cylinder 11 and set on the fixed barrel 5 is fixedly connected to the side of the rotating limit plate 4 away from the alarm device body 1.

[0026] When operation is required, the fixed bucket 5 is pulled away from the alarm device body 1 by hand, at which time the tension spring 6 is stretched. When the fixed bucket 5 is released, the tension spring 6, due to its elastic properties, immediately provides power for the fixed bucket 5 to reset, pushing it back to its initial position.

[0027] Please see Figure 2 The free end of the auxiliary mounting plate 7 is threaded with a screw 8, and one end of the screw 8 is rotatably connected to the corresponding limit block 9;

[0028] When the operator rotates the two screws 8, the rotational motion of the screws 8 is converted into linear motion, which in turn drives the two limit blocks 9 to move closer or further apart. In this way, the gas leak alarm device can flexibly adapt to gas pipelines of different diameters and is easy to install.

[0029] Please see Figure 2 There are two support blocks 3. The side of the support block 3 away from the connecting column 2 has a slot that is compatible with the auxiliary mounting plate 7.

[0030] When the fixed bucket 5 is pulled outward, the hinged end of the auxiliary mounting plate 7 can engage with the slot. Simultaneously, the tension force generated by the tension spring 6 acts on the fixed bucket 5, firmly supporting the auxiliary mounting plate 7 on the support block 3. At this time, the positions of the two limiting blocks 9 are such that the arc grooves 12 on the two magnet plates 10 are in a relative position. In this situation, personnel can easily install the gas leak alarm device onto the gas pipeline by rotating the screw 8.

[0031] When the fixed bucket 5 is close to the side of the alarm device body 1 and abuts against the rotation limit plate 4, the fixed bucket 5 is positioned between the two support blocks 3. Due to the lack of a locking groove, the auxiliary mounting plate 7 can rotate freely on the fixed bucket 5. At this time, the operator can rotate the auxiliary mounting plate 7 to adjust the two magnetic plates 10 to be flush with the horizontal plane. In this way, the operator can use the magnetism of the magnetic plates 10 to attach the gas leak alarm device to the device with the iron casing.

[0032] In summary, when using this gas leak alarm device, operators can flexibly choose the appropriate installation method according to different actual installation environments. When facing a gas pipeline, first pull the fixing bucket 5 outward so that the hinged end of the auxiliary mounting plate 7 is engaged in the slot of the support block 3, and use the tension of the tension spring 6 to stabilize the auxiliary mounting plate 7. At this time, rotate the screw 8, which drives the limit block 9 to move, so that the arc grooves 12 on the two magnet plates 10 are aligned with the gas pipeline, thereby quickly and stably installing the gas leak alarm device on gas pipelines of different diameters.

[0033] If the gas leak alarm device needs to be installed on equipment with a metal casing, the operator simply needs to reset the fixing bucket 5, bringing it close to the alarm device body 1 and abutting against the rotating limit plate 4. Since the retaining slot loses its limiting function, the auxiliary mounting plate 7 can rotate freely. The operator rotates the auxiliary mounting plate 7 until the magnetic plate 10 is flush with the horizontal plane. Using the magnetism of the magnetic plate 10, the alarm device can be easily attached to the metal casing. Furthermore, when the alarm device body 1 needs to be stored, the operator can easily disassemble it by twisting the connecting column 2, greatly improving storage convenience.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gas leak alarm device comprising an alarm device body (1), characterised in that: The center of the lower surface of the alarm device body (1) is provided with a rotatable fixed cylinder (11), one end of the fixed cylinder (11) away from the alarm device body (1) is provided with a fixed barrel (5) which can be pulled out outward and automatically reset, a plurality of supporting blocks (3) are fixedly connected to one side of the connecting column (2) away from the alarm device body (1), the opposite sides of the fixed barrel (5) are hingedly connected with auxiliary mounting plates (7) which can be clamped on the supporting blocks (3), the opposite sides of the two auxiliary mounting plates (7) are provided with two limiting blocks (9) which can be close to or away from each other, the opposite sides of the limiting blocks (9) are adhered with magnet plates (10), and the middle parts of the opposite sides of the two magnet plates (10) are provided with arc grooves (12).

2. A gas leak alarm device according to claim 1, characterised in that: The lower surface of the alarm device body (1) is threadedly connected with a connecting column (2), and the center of one side of the connecting column (2) away from the alarm device body (1) is rotatably connected with a rotating limiting circular plate (4), and one end of the fixed cylinder (11) close to the alarm device body (1) is fixedly connected to the rotating limiting circular plate (4).

3. A gas leak alarm device according to claim 2, wherein: The fixed barrel (5) is sleeved on the fixed cylinder (11), and one side of the rotating limiting circular plate (4) away from the alarm device body (1) is fixedly connected with a pull spring (6) which penetrates through the fixed cylinder (11) and is arranged on the fixed barrel (5).

4. A gas leak alarm device according to claim 3, wherein: The free end of the auxiliary mounting plate (7) is threadedly connected with a screw rod (8), and one end of the screw rod (8) is rotatably connected to the corresponding limiting block (9).

5. A gas leak alarm device according to claim 4, wherein: The number of the supporting blocks (3) is two, and one side of the supporting block (3) away from the connecting column (2) is provided with a clamping groove matched with the auxiliary mounting plate (7).

Images