Combustible gas detection alarm

Abstract

The utility model relates to the technical field of alarms, in particular to a combustible gas detection alarm, which comprises an alarm body and a transmission component, the transmission component is arranged in the alarm body and comprises a second fixing frame fixedly connected onto the alarm body, a rotating block is in threaded connection onto the second fixing frame, a transmission rod is fixedly connected onto the rotating block, and the transmission rod is fixedly connected onto the transmission rod. The transmission rod is fixedly connected with a first rotating shaft, the bottom of the first rotating shaft is slidably connected with an inner cylinder, the inner cylinder is slidably connected to the top of the alarm body, and the fixed block is driven to move through an opening groove in the fixed block, so that the damping is elastically deformed, the friction force between the first fixed frame and the second sliding rod is increased, and the alarm is firmly installed; the problem that the device body is blocked due to the fact that the shape of the alarm shell is irregular is avoided, the troubles that workers are difficult to see screw holes clearly and operation is inconvenient are solved, only the first fixing frame needs to be reserved on a ceiling, and follow-up replacement is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of alarm, concretely is combustible gas detection alarm. BACKGROUND

[0002] In the security guarantee system of industrial production, daily life and various places, combustible gas detection alarm occupies the pivotal position. With the rapid development of modern industry, the scale of petroleum, chemical industry, gas, coal and other industries expands unceasingly, and a large amount of combustible gas such as natural gas, liquefied petroleum gas, artificial gas is stored, transported and used in the production process. Once these combustible gases leak, they are extremely easy to cause explosion, fire and poisoning under certain conditions, which poses a great threat to personnel life safety and property;

[0003] The shell of many alarms is irregular in shape, and it is difficult for workers to clearly see the inside of the screw hole when screwing due to the shielding of the device body, so it is not possible to judge in real time whether the screw has been correctly screwed in, whether it is skewed or stuck, and the alarm needs to be regularly maintained and replaced, and since the device is small in size, it is very time-consuming to disassemble. UTILITARIAN CONTENT

[0004] The utility model aims at providing combustible gas detection alarm to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: combustible gas detection alarm, comprising: alarm body;

[0006] Transmission assembly, the transmission assembly is placed in the alarm body, the transmission assembly includes the second fixed frame that is fixedly connected on the alarm body, the second fixed frame is screw threadedly connected with the rotating block, the rotating block is fixedly connected with the transmission rod, the transmission rod is fixedly connected with the first rotating shaft, the first rotating shaft bottom is slidably connected with the inner tube, the inner tube is slidably connected at the top of the alarm body, the second fixed frame is fixedly connected with the fixed rod, the fixed rod is fixedly connected with the second rotating shaft, the second rotating shaft is rotatably connected with the transmission frame, the transmission frame is slidably connected with the sliding shaft, the sliding shaft is fixedly connected with the first sliding rod, the transmission frame bottom is fixedly connected with the universal joint, the universal joint of the transmission frame bottom is fixedly connected with the inner tube, the second fixed frame is slidably connected with the first fixed frame, the first fixed frame bottom is provided with the thread groove, the first fixed frame is provided with the aperture on the side close to the first sliding rod;

[0007] The fixed block is arranged on the top of the alarm body, is slidably connected to the bottom of the first fixed frame, and is fixedly connected with a damper on the fixed block, the damper is fixedly connected in the first fixed frame, a slot is formed in the fixed block, a second sliding rod is slidably connected in the slot on the fixed block, and the second sliding rod is fixedly connected with the sliding shaft.

[0008] Further, a limiting groove is formed in the inner cylinder, and a limiting block is slidably connected in the limiting groove.

[0009] The above technical scheme has the advantages that the limiting groove is formed in the inner cylinder, so that the first rotating shaft can be prevented from being separated from the inner cylinder during use.

[0010] Further, a threaded groove is formed in the second fixed frame and the rotating block.

[0011] The above technical scheme has the advantages that the threaded groove is formed in the second fixed frame and the rotating block, so that the second fixed frame can be displaced on the rotating block by being screwed during use.

[0012] Further, an opening is formed in the alarm body on one side close to the inner cylinder, and the inner cylinder is slidably connected in the opening on the alarm body.

[0013] The above technical scheme has the advantages that the opening is arranged, so that the inner cylinder can be prevented from being pressed and can be conveniently slid on the alarm body.

[0014] Further, an opening is formed in the transmission frame, and the second sliding rod is slidably connected in the opening on the transmission frame.

[0015] The above technical scheme has the advantages that the opening is formed in the transmission frame, so that the second sliding rod can be conveniently slid out of the transmission frame during use.

[0016] Further, the rotating block is slidably connected to the top of the alarm body.

[0017] The above technical scheme has the advantages that when the rotating block is displaced downward on the second fixed frame, the rotating block can contact the top of the alarm body, so that the rotating block can be prevented from being completely separated.

[0018] Compared with the prior art, the alarm body has the advantages and positive effects that:

[0019] In this invention, the first fixed frame is first securely installed on the ceiling. Then, the rotating block is rotated. Since the rotating block and the second fixed frame are connected by a threaded groove, the rotating block will move downward along the second fixed frame when it rotates. The displacement of the rotating block drives the transmission rod fixedly connected to it to move, and the transmission rod in turn drives the first rotating shaft to move downward. The bottom of the first rotating shaft engages with the limiting groove on the inner cylinder through a limiting block, allowing the inner cylinder to slide down into the opening at the top of the alarm body. As the inner cylinder slides down, the universal joint at the bottom drives the transmission frame to rotate on the second rotating shaft. The rotation of the transmission frame causes the first sliding rod to gradually insert into the opening in the first fixed frame. Meanwhile, the second sliding rod is fixedly connected to the sliding shaft, and slides within the opening on the transmission frame. As the transmission frame rotates, the second sliding rod slides out from the opening on the transmission frame and drives the fixed block to move through the slot on the fixed block, causing the damping to undergo elastic deformation and increasing the friction between the first fixed frame and the second sliding rod. This achieves a secure installation of the alarm, bypassing the problem of the device body being obstructed by the irregular shape of the alarm casing, and solving the problem of staff having difficulty seeing the screw holes and the inconvenience of operation. Only the first fixed frame needs to be pre-installed on the ceiling, making subsequent replacements more convenient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a combustible gas detection alarm.

[0021] Figure 2 This is a schematic diagram showing the connection between the rotating block and the second fixed frame of the combustible gas detector alarm.

[0022] Figure 3 This is a schematic diagram showing the positional relationship between the sliding shaft and the second rotating shaft of the combustible gas detector alarm on the transmission frame.

[0023] Figure 4 This is a schematic diagram showing the position of the second sliding rod of the combustible gas detector alarm.

[0024] Figure 5 This is a schematic diagram showing the connection between the inner cylinder and the main body of a combustible gas detection alarm.

[0025] Figure 6 This is a schematic diagram showing the disassembled state of the inner cylinder and the limit block of the combustible gas detector alarm.

[0026] Numbering on the map:

[0027] 1. Alarm unit;

[0028] 2. Transmission assembly; 21. First fixed frame; 22. Rotating block; 23. Second fixed frame; 24. Transmission rod; 25. Inner cylinder; 26. First rotating shaft; 27. Fixed rod; 28. Sliding shaft; 29. ​​Transmission frame; 210. First sliding rod; 211. Second rotating shaft; 212. Second sliding rod;

[0029] 3. Fixed block; 31. Damping;

[0030] 4. Limiting groove; 41. Limiting block. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0032] like Figures 1-6 As shown, this utility model provides a technical solution: a combustible gas detection alarm, including: an alarm body 1;

[0033] Transmission assembly 2 is located inside the alarm body 1. Transmission assembly 2 includes a second fixed frame 23 fixedly connected to the alarm body 1. A rotating block 22 is threaded onto the second fixed frame 23. A transmission rod 24 is fixedly connected to the rotating block 22. A first rotating shaft 26 is fixedly connected to the transmission rod 24. An inner cylinder 25 is slidably connected to the bottom of the first rotating shaft 26 and slidably connected to the top of the alarm body 1. A fixed rod 27 is fixedly connected to the second fixed frame 23. A fixed connection is also fixed to the fixed rod 27. A second rotating shaft 211 is connected, a transmission frame 29 is rotatably connected to the second rotating shaft 211, a sliding shaft 28 is slidably connected to the transmission frame 29, a first sliding rod 210 is fixedly connected to the sliding shaft 28, a universal joint is fixedly connected to the bottom of the transmission frame 29, the universal joint at the bottom of the transmission frame 29 is fixedly connected to the inner cylinder 25, a first fixed frame 21 is slidably connected to the second fixed frame 23, a threaded groove is opened at the bottom of the first fixed frame 21, and an opening is opened on the side of the first fixed frame 21 near the first sliding rod 210;

[0034] Fixed block 3 is placed on the top of the alarm body 1. Fixed block 3 is slidably connected to the bottom of the first fixed frame 21. Damping 31 is fixedly connected to fixed block 3. Damping 31 is fixedly connected inside the first fixed frame 21. A slot is opened on fixed block 3. A second sliding rod 212 is slidably connected in the slot on fixed block 3. The second sliding rod 212 is fixedly connected to the sliding shaft 28.

[0035] The utility model discloses a first fixed frame 21 is firmly installed on the ceiling first, then rotates the rotating block 22, because rotating block 22 is connected through the thread groove with the second fixed frame 23, when rotating block 22 rotates, rotating block 22 will displace along the second fixed frame 23 downward. The displacement of rotating block 22 drives the transmission rod 24 fixedly connected therewith to move, and the transmission rod 24 in turn drives the first rotating shaft 26 to move downward. The first rotating shaft 26 bottom is matched with the limiting slot 4 on the inner cylinder 25 through the limiting block 41, so that the inner cylinder 25 slides downward in the opening on the top of alarm body 1. When the inner cylinder 25 slides downward, the universal joint at the bottom drives the transmission frame 29 to rotate on the second rotating shaft 211, and the rotation of the transmission frame 29 promotes the first sliding rod 210 to gradually insert into the opening in the first fixed frame 21. At the same time, the second sliding rod 212 is fixedly connected with the sliding shaft 28, and the second sliding rod 212 slides in the opening on the transmission frame 29. With the rotation of the transmission frame 29, the second sliding rod 212 slides out of the opening on the transmission frame 29, and drives the fixed block 3 to displace through the slot on the fixed block 3, so that the damping 31 is elastically deformed, the friction between the first fixed frame 21 and the second sliding rod 212 is increased, and the alarm is firmly installed. This transmission mode skillfully bypasses the problem of device body blocking caused by irregular alarm shell shape, completely solves the problem of difficult to see screw hole and inconvenient operation for staff, greatly improves the convenience and accuracy of installation, and only needs to reserve the first fixed frame 21 on the ceiling, which is more convenient for subsequent replacement.

[0036] Further, as shown in Figures 1-6 The inner cylinder 25 is provided with a limiting slot 4, and the limiting block 41 is slidably connected in the limiting slot 4. The limiting block 41 is fixedly connected to the bottom of the first rotating shaft 26, and slides in the limiting slot 4, so that the rotating shaft does not drive the inner cylinder 25 to rotate when rotating.

[0037] The second fixed frame 23 and the rotating block 22 are both provided with thread grooves. When installation is needed, the staff twists the second fixed frame 23. Based on the engagement characteristics between the threads, the second fixed frame 23 can displace along the preset thread track on the rotating block 22, which simplifies the operation process, enables the staff to easily drive a series of subsequent transmission actions by only rotating operation, greatly improves the installation efficiency and reduces the installation difficulty, and also provides convenience for component adjustment during subsequent maintenance.

[0038] An opening is formed on one side of the alarm body 1 close to the inner cylinder 25, and the inner cylinder 25 is slidably connected in the opening on the alarm body 1. The inner cylinder 25 needs to slide flexibly under the drive of the transmission mechanism to drive other components to work cooperatively. The opening reserves a proper movement space for the inner cylinder 25, effectively avoiding the collision, friction or jamming between the inner cylinder 25 and the shell of the alarm body 1.

[0039] An opening is provided on the transmission frame 29, and the second sliding rod 212 is slidably connected in the opening on the transmission frame 29. The second sliding rod 212 needs to flexibly change its position according to the rotation of the transmission frame 29. The opening provides a sliding path for the second sliding rod 212, so that it can slide out of the opening smoothly during the movement of the transmission frame 29, and successfully complete the predetermined action sequence. This ensures that the entire installation process is carried out in an orderly manner and avoids installation failure or equipment failure due to component jamming.

[0040] The above solution also has the problem that the rotating block 22 may fall off the second fixed frame 23, such as Figure 1 , Figure 3 As shown, the rotating block 22 is slidably connected to the top of the alarm body 1, ensuring that even if the rotating block 22 is moved to the bottom, it will still make stable contact with the top of the alarm body 1, limiting it and preventing it from falling off. This not only ensures the smooth progress of the installation process, but also provides a safe basis for subsequent operations such as equipment maintenance and repair.

[0041] like Figures 1-6 As shown, in use, the first fixing frame 21 is first fixed to the ceiling through the threaded hole at the bottom of the first fixing frame 21;

[0042] Place the rotating block 22 below the first fixed frame 21, so that the second sliding rod 212 is aligned with the slot on the fixed block 3. Rotate the rotating block 22, so that the rotating block 22 slides down, so that the first rotating shaft 26 is driven to move downward through the transmission rod 24, so that the inner cylinder 25 slides down through the opening on the alarm body 1, so that the inner cylinder 25 moves the transmission frame 29 through the universal joint, so that the transmission frame 29 drives the first sliding rod 210 to gradually insert into the opening in the first fixed frame 21.

[0043] Continue to rotate the rotating block 22, so that the transmission frame 29 continues to rotate on the second rotating shaft 211, so that the first sliding rod 210 penetrates into the opening on the first fixed frame 21. During this process, the second sliding rod 212 will slide out from the opening on the transmission frame 29, and drive the fixed block 3 to move through the slot on the fixed block 3, so that the damper 31 undergoes elastic deformation, increasing the friction between the first fixed frame 21 and the second sliding rod 212, thus completing the installation of the alarm body 1.

[0044] The above merely describes preferred embodiments of the present application and is not intended to limit the present application in any form, although the present application has been disclosed as above with preferred embodiments, however, it is not intended to limit the present application, any person skilled in the art without departing from the technical scheme of the present application can make some changes or modifications to the above-mentioned technical content for equivalent embodiments, the implementation schemes in the above-mentioned embodiments can be further combined or replaced, as long as it does not deviate from the technical scheme of the present application, any simple modification, equivalent change and modification made to the above-mentioned embodiments according to the technical essence of the present application still belongs to the scope of the present application.

Claims

1. Combustible gas detection alarm, characterized in that, Include: Alarm body (1); Transmission assembly (2), the transmission assembly (2) is placed in the alarm body (1), the transmission assembly (2) includes the second fixed frame (23) fixedly connected on the alarm body (1), the second fixed frame (23) is screw connected with the rotating block (22), the rotating block (22) is fixedly connected with the transmission rod (24), the transmission rod (24) is fixedly connected with the first rotating shaft (26), the first rotating shaft (26) bottom is connected with the inner cylinder (25), the inner cylinder (25) is connected in the alarm body (1) top, the second fixed frame (23) is fixedly connected with the fixed rod (27), the fixed rod (27) is fixedly connected with the second rotating shaft (211), the second rotating shaft (211) is rotatably connected with the transmission frame (29), the transmission frame (29) is slidably connected with the sliding shaft (28), the sliding shaft (28) is fixedly connected with the first sliding rod (210), the transmission frame (29) bottom is fixedly connected with the universal joint, the universal joint of the transmission frame (29) bottom is fixedly connected with the inner cylinder (25), the second fixed frame (23) is slidably connected with the first fixed frame (21), the first fixed frame (21) bottom is provided with a threaded groove, the first fixed frame (21) is provided with a hole on the side close to the first sliding rod (210); Fixed block (3), the fixed block (3) is placed on the top of the alarm body (1), the fixed block (3) is slidably connected on the bottom of the first fixed frame (21), the fixed block (3) is fixedly connected with the damping (31), the damping (31) is fixedly connected in the first fixed frame (21), the fixed block (3) is provided with a slot, the second sliding rod (212) is slidably connected in the slot on the fixed block (3), the second sliding rod (212) is fixedly connected with the sliding shaft (28).

2. The combustible gas detection alarm according to claim 1, characterized in that: The inner cylinder (25) is provided with a limiting groove (4), the limiting groove (4) is slidably connected with a limiting block (41), and the limiting block (41) is fixedly connected on the bottom of the first rotating shaft (26).

3. The combustible gas detection alarm of claim 1, wherein: The second fixed frame (23) and the rotating block (22) are provided with threaded grooves.

4. The combustible gas detection alarm of claim 1, wherein: The alarm body (1) is provided with a hole on the side close to the inner cylinder (25), and the inner cylinder (25) is slidably connected in the hole on the alarm body (1).

5. The combustible gas detection alarm of claim 1, wherein: The transmission frame (29) is provided with a hole, and the second sliding rod (212) is slidably connected in the hole on the transmission frame (29).

6. The combustible gas detection alarm of claim 5, wherein: The rotating block (22) is slidably connected on the top of the alarm body (1).

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