Combustible gas leakage alarm device

Abstract

The utility model discloses a combustible gas leakage alarm device which comprises a first fixing shell, a second fixing shell, a locking mechanism, a sealing mechanism, an installation shell, an alarm lamp, an installation mechanism and a glass cover, the second fixing shell is arranged on the upper portion of the first fixing shell, and the locking mechanism is arranged between a first fixing plate and a second fixing plate. The sealing mechanism is arranged at the upper end of the first fixing shell and the lower end of the second fixing shell, and the mounting mechanisms are arranged on the two sides of the mounting shell. Compared with the prior art, the locking mechanism is arranged to drive the threaded sleeve to rotate and move downwards by screwing the knob, the threaded sleeve provides downward force for the second fixing plate, and the threaded rod provides upward force for the first fixing plate, so that the first fixing shell and the second fixing shell are clamped and fixed with each other, mounting and dismounting are more convenient and faster, and the service life is prolonged. Meanwhile, the threaded connection is arranged in the threaded sleeve, and the situation that disassembly is affected by corrosion of the threaded rod caused by rainwater erosion is avoided.

Description

Technical Field

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

[0002] Combustible gas resources refer to various combustible gases that can be utilized, excluding piped natural gas. These include coalbed methane, coke oven gas, smelting tail gas, biogas, straw gas, carbon black gas, refining tail gas, underground coalbed gasification gas, oil shale gas, and associated petroleum gas that cannot be transported externally. During pipeline transportation, combustible gas may leak due to equipment aging and damage. Therefore, combustible gas leak alarm devices are needed to detect and alert to gas leaks.

[0003] The gas pipeline leak warning device disclosed in CN216383641U includes a warning light that illuminates when a gas leak occurs, alerting nearby personnel to the leak and facilitating timely repairs to prevent further damage from excessive gas leakage. A combustible gas sensor also detects a leak, illuminating the warning light for quick location and repair. It is easy to use; the first and second covers are simply fastened to the pipe connection with bolts for installation. However, the existing technology still has shortcomings:

[0004] 1. Existing technology still uses traditional bolts and nuts to connect and fix the equipment. Tools are required for installation and disassembly, which is cumbersome. After long-term use, the bolt and nut connections are prone to corrosion due to rain, which increases the difficulty of disassembly. At the same time, existing technology does not have a protective mechanism for its detection and alarm devices, which is easily affected by the external environment and increases the probability of damage.

[0005] 2. Existing technology only sets sealing strips at the contact points between the first and second covers and the pipes, but there are no sealing devices at the connection points between the first and second covers and the mounting housing. This allows combustible gas to still seep out from these gaps when it leaks, which is not conducive to stopping the continuous leakage of combustible gas in time and can easily lead to greater losses. Utility Model Content

[0006] The technical problem to be solved by this utility model is to address the above-mentioned issues and provide a combustible gas leak alarm device.

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a combustible gas leak alarm device, comprising:

[0008] A fixed housing is provided, and a fixing plate is fixedly connected to the upper ends of both sides of the fixed housing.

[0009] A second fixed housing is disposed on the upper part of the first fixed housing;

[0010] Fixing plate two, the fixing plate two is fixedly connected to the lower ends of both sides of the fixing housing two;

[0011] A locking mechanism is provided between a first fixed plate and a second fixed plate, and includes a limiting groove, a threaded rod, a shaft, a threaded sleeve, and a knob. The limiting groove is located between the first fixed plate and the second fixed plate. The lower end of the threaded rod is located inside the limiting groove in the first fixed plate. The shaft passes through the bottom of the threaded rod and is rotatably connected to the front and rear walls of the limiting groove at its front and rear ends. The threaded sleeve is fitted onto the upper part of the threaded rod, and its inner wall is provided with an internal thread that matches the threaded rod. The knob is fixedly connected to the upper end of the outer side of the threaded sleeve.

[0012] A gas pipeline, wherein the gas pipeline is disposed between a fixed housing one and a fixed housing two;

[0013] A sealing mechanism is provided at the upper end of a fixed housing and the lower end of a fixed housing;

[0014] A through hole is provided in the middle of the upper part of the fixed housing 2;

[0015] Mounting housing, wherein the mounting housing is disposed above the through hole;

[0016] A combustible gas sensor, which is fixedly connected to the lower part of the outer side of the mounting housing and disposed inside the through hole;

[0017] A power supply, wherein the power supply is disposed inside the mounting housing;

[0018] An alarm light is located at the upper center of the outer side of the mounting housing;

[0019] A buzzer, wherein the buzzer is disposed on the upper side of the outer side of the mounting housing;

[0020] The mounting mechanism is located on both sides of the mounting housing.

[0021] As an improvement, the sealing mechanism includes:

[0022] A sealing groove is formed in the middle of the upper ends of one or both sides of the fixed housing;

[0023] A sealing strip is fixedly connected to the middle of the lower ends of both sides of the fixed housing and is snapped into the inside of the sealing groove;

[0024] Sealing gasket one, the sealing gasket one is fixedly connected to the front and rear ends of the upper part of the fixed housing one where it fits against the gas pipeline;

[0025] Sealing gasket two is fixedly connected to the lower front and rear ends of the fixed housing two where it fits against the gas pipeline.

[0026] As an improvement, the mounting mechanism includes:

[0027] Mounting plate, which is fixedly connected to the upper part of the fixed housing two at both sides of the through hole;

[0028] A fixing rod, which passes through the middle of the mounting plate;

[0029] A pull button, wherein the pull button is fixedly connected to one end of a fixed rod that is far apart from each other;

[0030] A spring is sleeved on the outside of the fixed rod and fixedly connected between the pull button and the mounting plate.

[0031] As an improvement, mounting holes are provided at the lower ends of both sides of the mounting housing corresponding to the fixing rods, and the fixing rods are inserted into the mounting holes.

[0032] As an improvement, a threaded ring is fixedly connected to the middle of the upper part of the fixed housing, and a glass cover is sleeved on the outside of the threaded ring. The lower end of the inside of the glass cover is provided with an internal thread that matches the threaded ring. The mounting housing and the mounting mechanism are located inside the glass cover.

[0033] As an improvement, a sealing ring is provided between the upper end of the threaded ring and the glass cover.

[0034] The advantages of this utility model compared with the prior art are as follows: 1. This utility model sets up a locking mechanism by opening a limiting groove between the first fixed plate and the second fixed plate. A threaded rod is rotatably connected to the limiting groove of the first fixed plate through a shaft. A threaded sleeve is sleeved on the upper part of the threaded rod. A knob is set on the threaded sleeve. When the first fixed housing and the second fixed housing are engaged on the gas pipeline, the threaded rod is rotated to a vertical state so that the threaded sleeve is above the second fixed plate. At this time, the knob is turned to drive the threaded sleeve to rotate and move downward. The threaded sleeve provides a downward force to the second fixed plate, and the threaded rod provides an upward force to the first fixed plate, so that the first fixed housing and the second fixed housing clamp and fix each other. Compared with the prior art, installation and disassembly are more convenient and quick. At the same time, the threaded connection is set inside the threaded sleeve to avoid rainwater erosion causing the threaded rod to rust and affect disassembly.

[0035] 2. This utility model features a sealing mechanism with a sealing groove on the upper part of the fixed housing one where it does not contact the gas pipeline, and a corresponding sealing strip on the lower part of the fixed housing two. When the fixed housing one and fixed housing two are engaged, the sealing strip is inserted into the sealing groove. A sealing gasket one is provided at the front and rear ends of the upper part of the fixed housing one where it contacts the gas pipeline, and a sealing gasket two is provided at the front and rear ends of the lower part of the fixed housing two where it contacts the gas pipeline. This ensures good sealing between the fixed housing one and fixed housing two, preventing combustible gas from seeping out from the joint gaps when it leaks, thus helping to stop the continuous leakage of combustible gas in time and reduce losses.

[0036] 3. This utility model has a through hole in the middle of the upper part of the fixed housing two. A combustible gas sensor is set in the lower part of the mounting housing and placed inside the through hole to detect gas leaks. An alarm light and a buzzer are set in the upper part of the mounting housing to issue an alarm to remind the staff. The mounting housing is fixed to the upper part of the fixed housing two by the mounting mechanism. The mounting housing can be quickly installed and disassembled by the cooperation of the mounting plate, fixing rod, pull button, spring and mounting hole, which facilitates timely maintenance and replacement of the detection alarm device. At the same time, the glass cover, together with the threaded ring and sealing ring, completely covers the detection alarm device, which not only facilitates observation, but also protects the internal electronic equipment, avoids damage to the equipment caused by the external environment, and extends the service life. Attached Figure Description

[0037] Figure 1 This is a three-dimensional schematic diagram of a combustible gas leak alarm device according to the present invention.

[0038] Figure 2 This is a schematic diagram of the disassembled structure of the fixed housing 1 and fixed housing 2 of the combustible gas leak alarm device of this utility model.

[0039] Figure 3 This is a schematic diagram of the installation mechanism of a combustible gas leak alarm device according to this utility model.

[0040] Figure 4 This is a three-dimensional front view of a combustible gas leak alarm device according to the present invention.

[0041] Figure 5 This is an enlarged view (A) of a combustible gas leak alarm device according to this utility model.

[0042] Figure 6 This is an enlarged view (B) of a combustible gas leak alarm device according to this utility model.

[0043] As shown in the figure: 1. Fixed housing one; 2. Fixed plate one; 3. Fixed housing two; 4. Fixed plate two; 5. Locking mechanism; 5.1. Limiting groove; 5.2. Threaded rod; 5.3. Shaft; 5.4. Threaded sleeve; 5.5. Knob; 6. Gas pipeline; 7. Sealing mechanism; 7.1. Sealing groove; 7.2. Sealing strip; 7.3. Sealing gasket one; 7.4. Sealing gasket two; 8. Through hole; 9. Mounting housing; 10. Combustible gas sensor; 11. Power supply; 12. Alarm light; 13. Buzzer; 14. Mounting mechanism; 14.1. Mounting plate; 14.2. Fixed rod; 14.3. Pull button; 14.4. Spring; 14.5. Mounting hole; 15. Threaded ring; 16. Glass cover; 17. Sealing ring. Detailed Implementation

[0044] The present invention will now be described in further detail with reference to the accompanying drawings.

[0045] Combined with appendix Figure 1 The present invention is provided with a fixed housing 1, and a fixed housing 2 3 is provided on the upper part of the fixed housing 1. They are symmetrically arranged and each has a semi-circular slot in the middle and a semi-circular clamping plate extending to the front and rear ends to facilitate clamping the gas pipeline 6.

[0046] Combined with appendix Figure 2 Fixed plates 1 and 2 are fixedly connected to the upper ends of both sides of the fixed housing 1, and fixed plates 2 and 4 are fixedly connected to the lower ends of both sides of the fixed housing 3. Fixed plates 1 and 2 are in contact with each other. A locking mechanism 5 is provided between fixed plates 1 and 2 and 4, including a limiting groove 5.1, a threaded rod 5.2, a shaft 5.3, a threaded sleeve 5.4, and a knob 5.5. A limiting groove 5.1 is opened between fixed plates 1 and 2 and fixed plates 4. The lower end of the threaded rod 5.2 is set inside the limiting groove 5.1 in fixed plate 1. The shaft 5.3 passes through the bottom of the threaded rod 5.2 and is rotatably connected to the front and rear walls of the limiting groove 5.1 at its front and rear ends, so that the threaded rod 5.2 can be rotated through the shaft 5.3.

[0047] A threaded sleeve 5.4 is fitted onto the upper part of the threaded rod 5.2, and the inner wall is provided with an internal thread that matches the threaded rod 5.2. A knob 5.5 is fixedly connected to the upper outer end of the threaded sleeve 5.4. During installation, rotate the threaded rod 5.2 to a vertical position so that the threaded sleeve 5.4 is above the second fixing plate 4. At this time, turn the knob 5.5 to drive the threaded sleeve 5.4 to rotate and move downward. The threaded sleeve 5.4 provides a downward force to the second fixing plate 4, and the threaded rod 5.2 provides an upward force to the first fixing plate 2, so that the first fixing housing 1 and the second fixing housing 3 clamp and fix each other. During disassembly, turn the knob 5.5 in the opposite direction to move the threaded sleeve 5.4 to the upper end of the threaded rod 5.2, and then rotate the threaded rod 5.2 to disengage it from the limiting groove 5.1.

[0048] A sealing mechanism 7 is provided at the upper end of the fixed housing 1 and the lower end of the fixed housing 3, including a sealing groove 7.1, a sealing strip 7.2, a sealing gasket 7.3, and a sealing gasket 7.4. A sealing groove 7.1 is opened in the middle of the upper ends of both sides of the fixed housing 1, and a matching sealing strip 7.2 is fixedly connected to the middle of the lower ends of both sides of the fixed housing 3. After the fixed housing 1 and the fixed housing 3 are engaged, the sealing strip 7.2 can be inserted into the sealing groove 7.1 to seal the gap between the fixed housing 1 and the fixed housing 3. A sealing gasket 7.3 is fixedly connected at the front and rear ends of the upper part of the fixed housing 1 where it fits with the gas pipe 6, and a sealing gasket 7.4 is fixedly connected at the front and rear ends of the lower part of the fixed housing 3 where it fits with the gas pipe 6. This ensures good sealing performance inside the fixed housing 1 and the fixed housing 3, so that when combustible gas leaks, it will not seep out from the connection gap, which helps to stop the continuous leakage of combustible gas in time and reduce losses.

[0049] Combined with appendix Figure 4 A through hole 8 is provided in the middle of the upper part of the fixed housing 2 3. A mounting housing 9 is provided above the through hole 8. A combustible gas sensor 10 is fixedly connected to the lower outer side of the mounting housing 9. The combustible gas sensor 10 is snapped into the through hole 8 to monitor the gas leaking inside the fixed housing 1 and the fixed housing 2 3. A power supply 11 is provided inside the mounting housing 9 to provide power. An alarm light 12 is fixedly connected to the middle of the upper outer side of the mounting housing 9 to emit an alarm light. A buzzer 13 is provided on one side of the upper outer side of the mounting housing 9 to emit an alarm sound. The combustible gas sensor 10 is electrically connected to the power supply 11, the alarm light 12, and the buzzer 13.

[0050] Combined with appendix Figure 3 Mounting mechanisms 14 are provided on both sides of the mounting housing 9, including mounting plates 14.1, fixing rods 14.2, pull buttons 14.3, springs 14.4, and mounting holes 14.5. Mounting plates 14.1 are fixedly connected to the upper part of the mounting housing 3 at both sides of the through holes 8. The fixing rods 14.2 are inserted through the middle of the mounting plates 14.1. The pull buttons 14.3 are fixedly connected to the opposite ends of the fixing rods 14.2. Springs 14.4 are sleeved on the outside of the fixing rods 14.2. The springs 14.4 are fixedly connected between the pull buttons 14.3 and the mounting plates 14.1. Mounting holes 14.5 are opened at the lower ends of both sides of the mounting housing 9 corresponding to the fixing rods 14.2. The fixing rods 14.2 are inserted into the mounting holes 14.5 to fix the mounting housing 9. When disassembling, pulling the pull buttons 14.3 will disengage the fixing rods 14.2 from the mounting holes 14.5, allowing the mounting housing 9 to be quickly disassembled.

[0051] A threaded ring 15 is fixedly connected to the middle of the upper part of the fixed housing 2 3. A glass cover 16 is sleeved on the outside of the threaded ring 15. The glass cover 16 is made of transparent glass. The lower end of the glass cover 16 is provided with an internal thread 2 that matches the threaded ring 15. The mounting housing 9 and the mounting mechanism 14 are located inside the glass cover 16, which facilitates observation and protects the internal electronic equipment from damage caused by the external environment. A sealing ring 17 is provided between the upper end of the threaded ring 15 and the glass cover 16 to prevent the leakage of flammable gas.

[0052] In specific implementation of this utility model, such as Figure 1As shown, the first fixed housing 1 and the second fixed housing 3 are engaged on the outside of the gas pipeline 6, aligning the first fixed plate 2 and the second fixed plate 4. The threaded rod 5.2 is rotated to a vertical position, so that the threaded sleeve 5.4 is positioned above the second fixed plate 4. At this time, the knob 5.5 is turned, causing the threaded sleeve 5.4 to rotate and move downward. The threaded sleeve 5.4 provides a downward force to the second fixed plate 4, and the threaded rod 5.2 provides an upward force to the first fixed plate 2, so that the first fixed housing 1 and the second fixed housing 3 are clamped and fixed together, and sealed by the sealing mechanism 7. The mounting housing 9 is placed between the mounting plates 14.1 and locked by the mounting mechanism 14, so that the combustible gas sensor 10 is located inside the through hole 8. The glass cover 16 is screwed onto the outside of the threaded ring 15 through the internal thread 2 to protect the detection alarm device. When combustible gas leaks, the combustible gas sensor 10 will detect it and issue an alarm through the alarm light 12 and the buzzer 13 to remind the staff.

[0053] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and components is omitted in the specific implementation of this disclosure. To ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available devices. The combustible gas sensor 10, power supply 11, alarm light 12, and buzzer 13 are all common devices on the market, and their connection methods are also existing connection methods, which will not be described in detail here.

[0054] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A combustible gas leak alarm device, characterized in that, include: A fixed housing (1) is provided, and fixed plates (2) are fixedly connected to the upper ends of both sides of the fixed housing (1); Fixed housing two (3), the fixed housing two (3) is disposed on the upper part of fixed housing one (1); Fixing plate two (4), the fixing plate two (4) is fixedly connected to the lower ends of both sides of the fixing shell two (3); The locking mechanism (5) is located between the first fixed plate (2) and the second fixed plate (4), and includes a limiting groove (5.1), a threaded rod (5.2), a shaft (5.3), a threaded sleeve (5.4), and a knob (5.5). The limiting groove (5.1) is located between the first fixed plate (2) and the second fixed plate (4). The lower end of the threaded rod (5.2) is located inside the limiting groove (5.1) in the first fixed plate (2). The shaft (5.3) passes through the bottom of the threaded rod (5.2) and is rotatably connected to the front and rear walls of the limiting groove (5.1) at its front and rear ends. The threaded sleeve (5.4) is sleeved on the upper part of the threaded rod (5.2) and has an internal thread that is compatible with the threaded rod (5.2) on its inner wall. The knob (5.5) is fixedly connected to the upper part of the threaded sleeve (5.4). Gas pipeline (6), wherein the gas pipeline (6) is disposed between fixed housing one (1) and fixed housing two (3); A sealing mechanism (7) is provided at the upper end of the first fixed housing (1) and the lower end of the second fixed housing (3); Through hole (8), the through hole (8) is opened in the middle of the upper part of the fixed housing (3); Mounting housing (9) is disposed on the upper part of the through hole (8); Combustible gas sensor (10), the combustible gas sensor (10) is fixedly connected to the lower part of the outer side of the mounting housing (9) and disposed inside the through hole (8); A power supply (11) is disposed inside the mounting housing (9); An alarm light (12) is located at the upper middle of the outer side of the mounting housing (9); A buzzer (13) is disposed on the upper side of the outer side of the mounting housing (9); The mounting mechanism (14) is disposed on both sides of the mounting housing (9).

2. The combustible gas leak alarm device according to claim 1, characterized in that, The sealing mechanism (7) includes: A sealing groove (7.1) is provided at the middle of the upper ends of both sides of the fixed housing (1); The sealing strip (7.2) is fixedly connected to the middle of the lower ends of both sides of the fixed housing (3) and is snapped into the inside of the sealing groove (7.1); Sealing gasket 1 (7.3), the sealing gasket 1 (7.3) is fixedly connected to the front and rear ends of the upper part of the fixed housing 1 (1) where it fits against the gas pipeline (6); Sealing gasket 2 (7.4) is fixedly connected to the front and rear ends of the lower part of the fixed housing 2 (3) where it fits against the gas pipeline (6).

3. The combustible gas leak alarm device according to claim 1, characterized in that, The installation mechanism (14) includes: Mounting plate (14.1), which is fixedly connected to the upper part of the fixed housing (3) located on both sides of the through hole (8); A fixing rod (14.2) is inserted through the middle of the mounting plate (14.1); A pull button (14.3) is fixedly connected to one end of a fixed rod (14.2) that is away from each other; A spring (14.4) is sleeved on the outside of the fixing rod (14.2) and fixedly connected between the pull button (14.3) and the mounting plate (14.1).

4. A combustible gas leak alarm device according to claim 3, characterized in that: The mounting housing (9) has mounting holes (14.5) at the lower ends of both sides corresponding to the fixing rod (14.2), and the fixing rod (14.2) is inserted into the mounting hole (14.5).

5. A combustible gas leak alarm device according to claim 1, characterized in that: A threaded ring (15) is fixedly connected to the middle of the upper part of the fixed housing (3). A glass cover (16) is sleeved on the outside of the threaded ring (15). The lower end of the glass cover (16) is provided with an internal thread that matches the threaded ring (15). The mounting housing (9) and the mounting mechanism (14) are located inside the glass cover (16).

6. A combustible gas leak alarm device according to claim 5, characterized in that: A sealing ring (17) is provided between the upper end of the threaded ring (15) and the glass cover (16).

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