Combustible gas alarm protection device

Abstract

The utility model discloses a combustible gas alarm protection device, which relates to the technical field of fuel gas alarms and comprises a combustible gas pipeline, the top of the combustible gas pipeline is provided with a fuel gas alarm, the outer side of the combustible gas pipeline is connected with an electromagnetic valve, and the outer side of the combustible gas pipeline is provided with a first arc-shaped block. The top of the first arc-shaped block is connected with a second arc-shaped block, so that the problems that only the alarm body can be stored, when combustible gas leaks, the functions of intercepting and protecting a pipeline are lacked, and meanwhile, the alarm body is inconvenient to mount on the gas pipeline are solved; when the combustible gas pipeline is closed, the electromagnetic valve can be controlled to be closed through the PLC, so that the combustible gas pipeline is blocked and intercepted, continuous leakage of the fuel gas is prevented, the protection effect is achieved, and meanwhile the fuel gas alarm can start the alarm effect to remind people around.

Description

Technical Field

[0001] The utility model relates to the technical field of gas alarms, and more specifically to a combustible gas alarm protection device. Background Art

[0002] The gas alarm is a gas leak detection alarm instrument. When gas leaks in an industrial environment, the gas alarm detects that the gas concentration reaches the critical point set by the explosion or poisoning alarm, and the gas alarm will send out an alarm signal to remind the staff to take safety measures. The gas alarm is equivalent to an automatic fire extinguisher. It can be installed to drive the exhaust, cut-off, and sprinkler systems to prevent explosions, fires, and poisoning accidents, thereby ensuring safe production. The gas alarm can measure the concentration of various gases. It is often used in chemical plants, petroleum, gas stations, steel mills and other places where there are gas leaks.

[0003] The utility model patent with authorization announcement number: CN212377643U discloses a portable combustible gas alarm, which involves an alarm body, a sensor, a protective shell, a splint and an adjustment seat. The alarm body can be placed inside the protective shell for storage to protect the alarm, and the splint can be adjusted and used with the adjustment seat to clamp and fix the sensor. When needed, the alarm can be taken out to perform gas detection.

[0004] Regarding the above scheme: The inventor believes that the above reference document uses a protective shell to store and protect the alarm, and the alarm is taken out for gas detection when in use. However, since only the alarm body can be stored, when the combustible gas leaks, it lacks the function of intercepting and protecting the pipeline. At the same time, it is also inconvenient to install the alarm body on the gas pipeline. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a combustible gas alarm protection device, which can effectively solve the problem that when the combustible gas leaks, the alarm body can only be stored, and it lacks the function of intercepting and protecting the pipeline, and it is also inconvenient to install the alarm body on the gas pipeline.

[0006] To solve the above problems, the utility model adopts the following technical solutions: a combustible gas alarm protection device, comprising a combustible gas pipeline, a gas alarm is arranged on the top of the combustible gas pipeline, a solenoid valve is connected to the outside of the combustible gas pipeline, a first arc block is arranged on the outside of the combustible gas pipeline, a second arc block is connected to the top of the first arc block, a connecting rod is connected to the outside of the second arc block, a placement box is connected to the top of the connecting rod, a PLC controller is connected to the inside of the placement box, a fastening mechanism is arranged on the bottom of the gas alarm, and the fastening mechanism can be used to fix the gas alarm to the outside of the combustible gas pipeline.

[0007] In order to facilitate the installation of the combustible gas pipeline, preferably, the fastening mechanism includes a U-shaped rod respectively connected to both sides of the gas alarm, and the outer sides of the two U-shaped rods are respectively connected to a first fixed clamp block and a second fixed clamp block, a first hollow groove is opened on one side of the second fixed clamp block, a first clamp block is arranged inside the first hollow groove, and the first clamp block is connected to one side of the first fixed clamp block, a first spring is connected inside the first hollow groove, a second clamp block is connected to the top of the first spring, and the second clamp block is located at the lower side of the first clamp block.

[0008] In order to facilitate the disassembly of the combustible gas pipeline, preferably, a second hollow groove is opened on the surface of the second fixing clamp block, a pull rod is connected to the inside of the second hollow groove, and the top of the pull rod is connected to the bottom of the second clamp block.

[0009] In order to achieve the effect of not having to pull the pull rod all the time and thus reducing fatigue, preferably, a third hollow groove is opened inside the second fixed clamp block, a second spring is connected inside the third hollow groove, a push plate is provided on one side of the first clamping block, and one side of the push plate is connected to one end of the second spring.

[0010] In order to prevent the first fixing clamp from moving easily in the combustible gas pipeline, preferably, an installation groove is provided on the inner surface of the first fixing clamp, a rubber block is connected to the inside of the installation groove, and the rubber block is located on the outside of the combustible gas pipeline.

[0011] In order to facilitate pulling the pull rod, preferably, a fixing rod is connected to the bottom of the pull rod, and the fixing rod is in a T-shape.

[0012] In order to prevent the second clamping block from rocking back and forth, preferably, a limiting ring block is provided on the outer side of the second fixed clamping block, and the inner surface of the limiting ring block is connected to the outer side of the pull rod.

[0013] In order to make the connection between the first clamping block and the first fixed clamping block more firm and stable, preferably, a reinforcement rod is provided inside the first hollow groove, one end of the reinforcement rod is connected to the bottom of the first clamping block, and the other end of the reinforcement rod is connected to one side of the first fixed clamping block.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] When the gas alarm in the device detects a gas leak, the solenoid valve can be controlled to close through the PLC controller, thereby blocking and intercepting the combustible gas pipeline to prevent further leakage of the gas, thereby playing a protective role. At the same time, the gas alarm can also activate the alarm function to alert people around. The second clamp block can limit the first fixed clamp block through the first clamp block, so that the first fixed clamp block and the second fixed clamp block can be stably connected to the outside of the combustible gas pipeline, so that the gas alarm can be conveniently fixed on the outside of the combustible gas pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic cross-sectional structural diagram of the second fixed clamping block in the embodiment of the utility model;

[0018] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0020] Description of the numbers in the figure:

[0021] 1. Combustible gas pipeline; 21. Gas alarm; 22. Solenoid valve; 23. PLC controller; 24. First arc block; 25. Second arc block; 26. Connecting rod; 27. Placement box; 31. U-shaped rod; 32. First fixed clamp block; 33. Second fixed clamp block; 34. First hollow groove; 35. First clamp block; 36. Second clamp block; 37. First spring; 41. Second hollow groove; 42. Pull rod; 51. Third hollow groove; 52. Second spring; 53. Push plate; 6. Limiting ring block; 7. Fixed rod; 8. Reinforcement rod; 91. Installation groove; 92. Rubber block. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings 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.

[0023] Example:

[0024] See also Figure 1 A combustible gas alarm protection device comprises a combustible gas pipeline 1, a gas alarm 21 is arranged on the top of the combustible gas pipeline 1, a solenoid valve 22 is connected to the outside of the combustible gas pipeline 1, a first arc block 24 is arranged on the outside of the combustible gas pipeline 1, a second arc block 25 is connected to the top of the first arc block 24, a connecting rod 26 is connected to the outside of the second arc block 25, a placement box 27 is connected to the top of the connecting rod 26, a PLC controller 23 is connected to the inside of the placement box 27, a fastening mechanism is arranged at the bottom of the gas alarm 21, the fastening mechanism can be used to fix the gas alarm 21 on the outside of the combustible gas pipeline 1, the inside of the combustible gas pipeline 1 can be used to transport combustible gas, and the solenoid valve 22 can be used to open the combustible gas pipeline 1. Open and close the combustible gas pipeline 1, the PLC controller 23 can connect the gas alarm 21 and the solenoid valve 22. When the gas alarm 21 detects a gas leak, the solenoid valve 22 can be controlled to close through the PLC controller 23, thereby sealing and intercepting the combustible gas pipeline 1 to prevent further leakage of gas to play a protective role. At the same time, the gas alarm 21 can also activate the alarm function to remind people around. The first arc block 24 and the second arc block 25 can be clamped on the outside of the combustible gas pipeline 1, and connected to the placement box 27 through the connecting rod 26, so that the PLC controller 23 can be placed inside the placement box 27, so that the PLC controller 23 can be stabilized on the upper side of the combustible gas pipeline 1.

[0025] The signal access terminal of the gas alarm 21 is connected to the signal input terminal of the PLC controller 23 , and the electric control output terminal of the PLC controller 23 is connected to the power access terminal of the solenoid valve 22 .

[0026] See also Figure 1-3 The fastening mechanism includes a U-shaped rod 31 respectively connected to both sides of the gas alarm 21, and the outer sides of the two U-shaped rods 31 are respectively connected with a first fixed clamp block 32 and a second fixed clamp block 33. The two U-shaped rods 31 can connect the first fixed clamp block 32 and the second fixed clamp block 33, so that the first fixed clamp block 32 and the second fixed clamp block 33 can rotate at the bottom of the gas alarm 21, so that they can be smoothly clamped on the outer side of the combustible gas pipeline 1.

[0027] In addition, a first hollow groove 34 is provided on one side of the second fixing clamp block 33, a first clamp block 35 is provided inside the first hollow groove 34, and the first clamp block 35 is connected to one side of the first fixing clamp block 32, a first spring 37 is connected inside the first hollow groove 34, a second clamp block 36 is connected to the top of the first spring 37, and the second clamp block 36 is located at the lower side of the first clamp block 35, the first hollow groove 34 is T-shaped, and the first clamp block 35 and the second clamp block 36 can be placed inside, and the first clamp block 35 can be driven by the first fixing clamp block 32 to move to the inside of the first hollow groove 34 The first clamping block 35 is L-shaped and can be limited by the second clamping block 36 so as not to be easily separated from the first hollow groove 34. This enables the first fixing clamping block 32 and the second fixing clamping block 33 to be stably connected to the outside of the combustible gas pipeline 1, so that the gas alarm 21 can be conveniently fixed to the outside of the combustible gas pipeline 1. One side of the second clamping block 36 is inclined and can be squeezed by the first clamping block 35 to move automatically. The first spring 37 can support the second clamping block 36, so that the second clamping block 36 is not easily separated from the first clamping block 35, and the first clamping block 35 can be effectively limited.

[0028] See also Figure 3 A second hollow groove 41 is provided on the surface of the second fixed clamp block 33, and a pull rod 42 is connected to the inside of the second hollow groove 41. The top of the pull rod 42 is connected to the bottom of the second clamp block 36. The pull rod 42 can be placed inside the second hollow groove 41, so that the pull rod 42 can be connected to the second clamp block 36, and the pull rod 42 can drive the second clamp block 36 to move together, so that the second clamp block 36 no longer limits the first clamp block 35. At this time, the first clamp block 35 can be moved out from the inside of the first hollow groove 34, so as to facilitate the separation of the first fixed clamp block 32 and the second fixed clamp block 33, and then facilitate the disassembly of the gas alarm 21.

[0029] See also Figure 3 A third hollow groove 51 is provided inside the second fixed clamping block 33, and a second spring 52 is connected inside the third hollow groove 51. A push plate 53 is provided on one side of the first clamping block 35, and one side of the push plate 53 is connected to one end of the second spring 52. The second spring 52 and the push plate 53 can be placed inside the third hollow groove 51. When the first clamping block 35 moves into the first hollow groove 34, the push plate 53 can be used to squeeze the second spring 52 to shrink. Therefore, when people pull the pull rod 42 to drive the second clamping block 36 to move away from the first clamping block 35, the contracted second spring 52 will pop out the first clamping block 35. There is no need to pull the pull rod 42 while moving the first fixed clamping block 32, which is more convenient and simple.

[0030] See also Figure 2 and Figure 4The inner surface of the first fixed clamp block 32 is provided with a mounting groove 91, and the inside of the mounting groove 91 is connected to a rubber block 92, and the rubber block 92 is located on the outside of the combustible gas pipeline 1. The rubber block 92 can be installed inside the mounting groove 91, and the rubber block 92 can be tightly attached to the outside of the combustible gas pipeline 1 and has a large friction force, so that the first fixed clamp block 32 and the second fixed clamp block 33 are more stable on the outside of the combustible gas pipeline 1 and are not easy to move.

[0031] See also Figure 2 The bottom of the pull rod 42 is connected with a fixing rod 7, and the fixing rod 7 is in a T-shape. The fixing rod 7 can prevent people from having difficulty in pulling the pull rod 42 due to the small size of the pull rod 42.

[0032] See also Figure 3 A limiting ring block 6 is provided on the outer side of the second fixed clamp block 33, and the inner surface of the limiting ring block 6 is connected to the outer side of the pull rod 42. The limiting ring block 6 can ensure that when the first spring 37 bounces the second clamping block 36 back to its original position, the second clamping block 36 is not likely to shake all the time, can stabilize quickly, and is not likely to collide with the first clamping block 35.

[0033] See also Figure 3 A reinforcing rod 8 is provided inside the first hollow groove 34, one end of the reinforcing rod 8 is connected to the bottom of the first clamping block 35, and the other end of the reinforcing rod 8 is connected to one side of the first fixed clamping block 32. The reinforcing rod 8 can reinforce the connection between the first clamping block 35 and the first fixed clamping block 32, so that the connection between the first clamping block 35 and the first fixed clamping block 32 is more firm and stable, and is not prone to breakage and damage.

[0034] It should be noted that: the solenoid valve 22 is fixedly connected to the outer side of the combustible gas pipeline 1 through a thread, the first arc block 24 and the second arc block 25 are connected by bolts and clamped to the outer side of the combustible gas pipeline 1, the connecting rod 26 and the outer side of the second arc block 25 are cast as one piece, the bottom of the placement box 27 and the top of the connecting rod 26 are welded, the PLC controller 23 is connected to the inside of the placement box 27 by screws, the U-shaped rod 31 is welded to one side of the bottom of the gas alarm 21, the first fixed clamp block 32 and the second fixed clamp block 33 are both rotatably connected to the outside of the U-shaped rod 31, the first clamp block 35 and the first fixed clamp block 32 are cast as one piece, the second clamp block 36 is slidably connected to the inside of the first hollow groove 34, and is in sliding contact with the inner surface of the first clamp block 35, and the first spring 37 is The bottom is welded to the inside of the first hollow groove 34, the top of the first spring 37 is welded to the bottom of the second block 36, the pull rod 42 is slidably connected to the inside of the second hollow groove 41, and the top of the pull rod 42 is cast as an integral part with the bottom of the second block 36, one end of the second spring 52 is welded to the inside of the third hollow groove 51, and the other end of the second spring 52 is welded to one side of the push plate 53, and the surface of the push plate 53 is in sliding contact with the inside of the third hollow groove 51, the limiting ring block 6 and the surface of the pull rod 42 are cast as an integral part, the top of the fixing rod 7 is connected to the bottom of the pull rod 42 by welding, one end of the reinforcement rod 8 is welded to the bottom of the first block 35, and the other end of the reinforcement rod 8 is welded to one side of the first fixed clamping block 32, and the surface of the rubber block 92 is attached to the inside of the mounting groove 91.

[0035] The working principle and use process of the present invention: when using the present device, the gas alarm 21 can be placed on the outside of the combustible gas pipeline 1, and then the first fixed clamp block 32 and the second fixed clamp block 33 can be rotated and clamped on the outside of the combustible gas pipeline 1, and then the first fixed clamp block 32 will drive the first clamp block 35 to move into the first hollow groove 34, and at the same time, the first clamp block 35 will squeeze the inclined surface of the second clamp block 36 to make it move, and at the same time, the second clamp block 36 will squeeze the first spring 37 to contract, and when the first clamp block 35 continues to move and no longer squeezes the second clamp block 36, the first spring 37 will rebound the second clamp block 36 to its original position and thus limit the first clamp block 35, so that the first clamp block 35 can be stabilized inside the first hollow groove 34, which makes the first fixed clamp block 32 and the second fixed clamp block 33 stable The gas alarm 21 is connected to the outside of the combustible gas pipeline 1, so that the gas alarm 21 can be conveniently fixed on the outside of the combustible gas pipeline 1. Thereafter, the gas alarm 21 can detect the combustible gas pipeline 1. When the combustible gas inside the combustible gas pipeline 1 leaks, the gas alarm 21 can detect it and alarm to remind people around. At the same time, the solenoid valve 22 is controlled to be closed through the PLC controller 23, thereby sealing and intercepting the combustible gas pipeline 1 to prevent further leakage of gas to play a protective role. At this point, the problem that only the gas alarm 21 can be stored, and when the combustible gas leaks, the function of intercepting and protecting the combustible gas pipeline 1 is lacking, and it is also inconvenient to install the gas alarm 21 on the combustible gas pipeline 1.

[0036] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A combustible gas alarm protection device, comprising a combustible gas pipeline (1), characterized in that: A gas alarm (21) is arranged on the top of the combustible gas pipeline (1), a solenoid valve (22) is connected to the outside of the combustible gas pipeline (1), a first arc block (24) is arranged on the outside of the combustible gas pipeline (1), a second arc block (25) is connected to the top of the first arc block (24), a connecting rod (26) is connected to the outside of the second arc block (25), a placement box (27) is connected to the top of the connecting rod (26), a PLC controller (23) is connected to the inside of the placement box (27), and a fastening mechanism is arranged on the bottom of the gas alarm (21), and the fastening mechanism can be used to fix the gas alarm (21) to the outside of the combustible gas pipeline (1).

2. A combustible gas alarm protection device according to claim 1, characterized in that: The fastening mechanism comprises a U-shaped rod (31) respectively connected to both sides of the gas alarm (21); the outer sides of the two U-shaped rods (31) are respectively connected to a first fixing clamp (32) and a second fixing clamp (33); a first hollow groove (34) is provided on one side of the second fixing clamp (33); a first clamping block (35) is arranged inside the first hollow groove (34), and the first clamping block (35) is connected to one side of the first fixing clamp (32); a first spring (37) is connected inside the first hollow groove (34); a second clamping block (36) is connected to the top end of the first spring (37), and the second clamping block (36) is located at the lower side of the first clamping block (35).

3. A combustible gas alarm protection device according to claim 2, characterized in that: A second hollow groove (41) is formed on the surface of the second fixed clamping block (33), a pull rod (42) is connected to the interior of the second hollow groove (41), and the top of the pull rod (42) is connected to the bottom of the second clamping block (36).

4. A combustible gas alarm protection device according to claim 2, characterized in that: A third hollow groove (51) is provided inside the second fixed clamp block (33), and a second spring (52) is connected inside the third hollow groove (51). A push plate (53) is provided on one side of the first clamp block (35), and one side of the push plate (53) is connected to one end of the second spring (52).

5. A combustible gas alarm protection device according to claim 2, characterized in that: The inner surface of the first fixing clamp block (32) is provided with a mounting groove (91), the interior of the mounting groove (91) is connected to a rubber block (92), and the rubber block (92) is located outside the combustible gas pipeline (1).

6. A combustible gas alarm protection device according to claim 3, characterized in that: The bottom of the pull rod (42) is connected to a fixing rod (7), and the fixing rod (7) is in a T-shape.

7. A combustible gas alarm protection device according to claim 3, characterized in that: A limiting ring block (6) is arranged on the outer side of the second fixed clamp block (33), and the inner surface of the limiting ring block (6) is connected to the outer side of the pull rod (42).

8. A combustible gas alarm protection device according to claim 2, characterized in that: A reinforcing rod (8) is arranged inside the first hollow groove (34), one end of the reinforcing rod (8) is connected to the bottom of the first clamping block (35), and the other end of the reinforcing rod (8) is connected to one side of the first fixed clamping block (32).

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