Gas concentration over-standard alarm

Abstract

The utility model relates to the technical field of alarms, in particular to a gas concentration standard exceeding alarm which comprises a supporting frame, a protection block is fixedly connected to the surface of the supporting frame, a driving motor is fixedly connected to the surface of the protection block, a first transmission wheel is fixedly connected to an output shaft of the driving motor, and a second transmission wheel is fixedly connected to the output shaft of the first transmission wheel. And the surface of the first transmission wheel is in transmission connection with a transmission belt, the surface of the transmission belt is in transmission connection with a second transmission wheel, and the surface of the second transmission wheel is fixedly connected with an adjusting rod. According to the utility model, the output shaft of the driving motor drives the first transmission wheel to rotate on the rotating rod, the first transmission wheel drives the second transmission wheel to rotate on the rotating rod through the transmission belt, and the second transmission wheel drives the alarm body to rotate on the support frame through the adjusting rod, so that the detection angle of the alarm body on the support frame is changed; therefore, a detection angle with minimum interference is found for the alarm body, and the accuracy of gas concentration detection is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of alarms, in particular to a gas concentration exceeding alarm Background Technique

[0002] A gas concentration alarm is a safety device for detecting the concentration of a specific gas. When the gas concentration exceeds a preset safety threshold, the alarm will sound an alarm to remind people to take corresponding safety measures

[0003] The existing gas concentration exceeding alarms are used by being fixedly installed on the wall surface. The detection head on the alarm cannot be adjusted in angle by rotation. However, under the interference of air flow and temperature, the angle area detected by the gas concentration exceeding alarm cannot represent the overall gas concentration, reducing the detection accuracy of the gas concentration exceeding alarm Content of the Utility Model

[0004] The purpose of the utility model is to provide a gas concentration exceeding alarm to solve the problem that the detection head on the alarm cannot be adjusted in angle by rotation as mentioned in the above background technique. However, under the interference of air flow and temperature, the angle area detected by the gas concentration exceeding alarm cannot represent the overall gas concentration, reducing the detection accuracy of the gas concentration exceeding alarm

[0005] To achieve the above purpose, the utility model provides the following technical solution, a gas concentration exceeding alarm: including a support frame, a protective block is fixedly connected to the surface of the support frame, a driving motor is fixedly connected to the surface of the protective block, a first transmission wheel is fixedly connected to the output shaft of the driving motor, a transmission belt is connected to the surface of the first transmission wheel in a transmission manner, a second transmission wheel is connected to the surface of the transmission belt in a transmission manner, an adjusting rod is fixedly connected to the surface of the second transmission wheel, the adjusting rod is rotatably connected to the surface of the protective block, an alarm body is fixedly connected to the bottom of the adjusting rod, a detection head is arranged on the surface of the alarm body, a concentration display screen is arranged on the surface of the alarm body, and a buzzer alarm is fixedly installed on the surface of the alarm body

[0006] Preferably, a storage mechanism is arranged on the surface of the support frame. The storage mechanism includes a rotating rod, the rotating rod is rotatably connected to the surface of the support frame, a mounting plate is fixedly connected to the surface of the rotating rod, a fixing block is fixedly connected to the surface of the support frame, and a limiting buckle is fixedly connected to the surface of the fixing block

[0007] Preferably, the support frame is in an "L" shape, the inside of the protective block is a cavity, and the first transmission wheel rotates on the cavity of the protective block through the output shaft of the driving motor

[0008] Preferably, the first driving wheel drives the second driving wheel to rotate through a transmission belt, and the transmission belt and the second driving wheel are also located on the cavity of the protection block.

[0009] Preferably, the bottom of the alarm body is rotatably connected to the surface of the support frame, and the second driving wheel drives the alarm body to rotate on the surface of the support frame through an adjusting rod.

[0010] Preferably, two groups of grooves are respectively formed on both sides of the support frame, and a circular hole is formed between the two groups of grooves. The rotating rod rotates on the circular hole of the support frame, and the mounting plate rotates on the surface of the support frame through the rotating rod. Mounting holes are formed on the surface of the mounting plate.

[0011] Preferably, the limit buckle is made of rubber and consists of a cylinder and a frustum of a cone. The limit buckle restricts the mounting plate on the surface of the fixed block.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. For this alarm, the output shaft of the driving motor drives the first driving wheel to rotate on the rotating rod, the first driving wheel drives the second driving wheel to rotate on the rotating rod through the transmission belt, and the second driving wheel drives the alarm body to rotate on the support frame through the adjusting rod, changing the detection angle of the alarm body on the support frame, thereby finding a detection angle with the least interference for the alarm body and ensuring the accuracy of gas concentration detection.

[0014] 2. The mounting plate of this alarm can rotate on the surface of the support frame through the rotating rod. Rotate the mounting hole of the mounting plate to the limit buckle, and limit the circular hole of the mounting plate with the limit buckle, so that the limit buckle restricts the mounting plate on the surface of the fixed block, thereby completing the folding of the mounting plate on the support frame, saving storage space and facilitating the storage of the entire alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a side partial cross-sectional three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 3 is of the present utility model Figure 2 is an enlarged structural schematic diagram of part A in the present utility model;

[0018] Figure 4 is a front three-dimensional explosion-proof schematic diagram of the support frame structure of the present utility model;

[0019] Figure 5 is of the present utility model Figure 4Schematic diagram of the enlarged structure at B in the [specific context].

[0020] In the figure: 1. Support frame; 11. Alarm body; 12. Detection head; 13. Concentration display screen; 14. Buzzer alarm; 2. Protection block; 21. Driving motor; 22. First transmission wheel; 23. Transmission belt; 24. Second transmission wheel; 25. Adjusting rod; 3. Rotating rod; 31. Mounting plate; 32. Fixed block; 33. Limit buckle. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-5 , an embodiment provided by the present invention:

[0023] A gas concentration exceeding alarm: including a support frame 1, a protection block 2 is fixedly connected to the surface of the support frame 1, a driving motor 21 is fixedly connected to the surface of the protection block 2, a first transmission wheel 22 is fixedly connected to the output shaft of the driving motor 21, a transmission belt 23 is drivingly connected to the surface of the first transmission wheel 22, a second transmission wheel 24 is drivingly connected to the surface of the transmission belt 23, an adjusting rod 25 is fixedly connected to the surface of the second transmission wheel 24, the adjusting rod 25 is rotatably connected to the surface of the protection block 2, an alarm body 11 is fixedly connected to the bottom of the adjusting rod 25, a detection head 12 is arranged on the surface of the alarm body 11, a concentration display screen 13 is arranged on the surface of the alarm body 11, a buzzer alarm 14 is fixedly installed on the surface of the alarm body 11, the alarm body 11 detects the gas concentration through the detection head 12, the concentration display screen 13 displays the gas concentration, the buzzer alarm 14 gives an alarm after the concentration exceeds the standard, and the alarm body 11 can rotate on the surface of the support frame 1 during the detection process, so as to change the detection angle of the alarm body 11 on the support frame 1, thereby finding a detection angle with the least interference for the alarm body 11 and ensuring the accuracy of the concentration detection.

[0024] Further, a storage mechanism is provided on the surface of the support frame 1. The storage mechanism includes a rotating rod 3 which is rotatably connected to the surface of the support frame 1. A mounting plate 31 is fixedly connected to the surface of the rotating rod 3. A fixed block 32 is fixedly connected to the surface of the support frame 1, and a limit buckle 33 is fixedly connected to the surface of the fixed block 32. This storage mechanism can fold the mounting plate 31 on the surface of the support frame 1, reducing the occupied space of the alarm, thus facilitating the user to store the entire alarm.

[0025] Further, the support frame 1 is in an "L" shape. The interior of the protective block 2 is a cavity. The first transmission wheel 22 rotates on the cavity of the protective block 2 through the output shaft of the driving motor 21. The protective block 2 supports the driving motor 21 on the support frame 1 and protects the first transmission wheel 22.

[0026] Further, the first transmission wheel 22 drives the second transmission wheel 24 to rotate through a transmission belt 23. The transmission belt 23 and the second transmission wheel 24 are also located on the cavity of the protective block 2. The diameters of the first transmission wheel 22 and the second transmission wheel 24 are the same, and the rotation directions are also the same. The protective block 2 also protects the transmission belt 23 and the second transmission wheel 24.

[0027] Further, the bottom of the alarm body 11 is rotatably connected to the surface of the support frame 1. The second transmission wheel 24 drives the alarm body 11 to rotate on the surface of the support frame 1 through an adjusting rod 25. The alarm body 11 changes the angle of the detection head 12 on the support frame 1 through rotation, and thus changes the detection angle of the alarm body 11 on the support frame 1, enabling the detection of gas concentrations in different directions.

[0028] Further, two groups of grooves are respectively formed on both sides of the support frame 1, and a circular hole is formed between the two groups of grooves. The rotating rod 3 rotates on the circular hole of the support frame 1. The mounting plate 31 rotates on the surface of the support frame 1 through the rotating rod 3. Two mounting plates 31 are fixedly connected to one group of rotating rods 3. Mounting holes are formed on the surface of the mounting plate 31. The mounting plate 31 mounts the support frame 1 and the alarm body 11 on the wall through the mounting holes.

[0029] Further, the limit buckle 33 is made of rubber. The limit buckle 33 consists of a cylinder and a frustum. The circular hole of the mounting plate 31 presses the frustum region of the limit buckle 33, causing the frustum of the limit buckle 33 to deform. The mounting plate 31 passes through the frustum of the limit buckle 33 through the circular hole, and the circular hole of the mounting plate 31 falls on the cylinder region of the limit buckle 33. At this time, the frustum of the limit buckle 33 restricts the mounting plate 31 on the surface of the fixed block 32. At this time, the mounting plate 31 is folded on the side of the support frame 1, saving storage space and facilitating the storage of the entire alarm.

[0030] Working principle: The output shaft of the driving motor 21 drives the first transmission wheel 22 to rotate on the rotating rod 3. The first transmission wheel 22 drives the second transmission wheel 24 to rotate on the rotating rod 3 through the transmission belt 23. The second transmission wheel 24 drives the alarm body 11 to rotate on the support frame 1 through the adjusting rod 25, changing the detection angle of the alarm body 11 on the support frame 1, so as to find a detection angle with the least interference for the alarm body 11 and ensure the accuracy of gas concentration detection.

[0031] The support frame 1 is installed on the wall surface through the mounting plate 31. The mounting plate 31 can rotate on the surface of the support frame 1 through the rotating rod 3. Rotate the mounting hole of the mounting plate 31 onto the limit buckle 33, and limit the circular hole of the mounting plate 31 with the limit buckle 33, so that the limit buckle 33 restricts the mounting plate 31 on the surface of the fixed block 32, thus completing the folding of the mounting plate 31 on the support frame 1, saving the storage space and facilitating the storage of the entire alarm.

[0032] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A gas concentration excessive alarm, characterized in that: The invention comprises a support frame (1), a protective block (2) is fixedly connected to the surface of the support frame (1), a driving motor (21) is fixedly connected to the surface of the protective block (2), a first transmission wheel (22) is fixedly connected to the output shaft of the driving motor (21), a transmission belt (23) is drivingly connected to the surface of the first transmission wheel (22), a second transmission wheel (24) is drivingly connected to the surface of the transmission belt (23), an adjusting rod (25) is fixedly connected to the surface of the second transmission wheel (24), the adjusting rod (25) is rotatably connected to the surface of the protective block (2), an alarm body (11) is fixedly connected to the bottom of the adjusting rod (25), a detection head (12) is arranged on the surface of the alarm body (11), a concentration display screen (13) is arranged on the surface of the alarm body (11), and a buzzer alarm (14) is fixedly installed on the surface of the alarm body (11).

2. A gas concentration excessive alarm according to claim 1, characterized in that: A storage mechanism is provided on the surface of the support frame (1), the storage mechanism comprising a rotating rod (3), the rotating rod (3) being rotatably connected to the surface of the support frame (1), a mounting plate (31) being fixedly connected to the surface of the rotating rod (3), a fixing block (32) being fixedly connected to the surface of the support frame (1), and a limiting buckle (33) being fixedly connected to the surface of the fixing block (32).

3. A gas concentration excessive alarm according to claim 1, characterized in that: The support frame (1) is in an "L" shape, the interior of the protection block (2) is a cavity, and the first transmission wheel (22) rotates on the cavity of the protection block (2) via the output shaft of the driving motor (21).

4. A gas concentration excessive alarm according to claim 3, characterized in that: The first transmission wheel (22) drives the second transmission wheel (24) to rotate via a transmission belt (23), and the transmission belt (23) and the second transmission wheel (24) are also located in the cavity of the protection block (2).

5. A gas concentration excessive alarm according to claim 4, characterized in that: The bottom of the alarm body (11) is rotatably connected to the surface of the support frame (1), and the second transmission wheel (24) drives the alarm body (11) to rotate on the surface of the support frame (1) through the adjustment rod (25).

6. A gas concentration excessive alarm according to claim 2, characterized in that: Two groups of grooves are respectively provided on both sides of the support frame (1), and a circular hole is provided between the two groups of grooves; the rotating rod (3) rotates on the circular hole of the support frame (1); the mounting plate (31) rotates on the surface of the support frame (1) through the rotating rod (3); and the mounting hole is provided on the surface of the mounting plate (31).

7. A gas concentration excessive alarm according to claim 6, characterized in that: The limiting buckle (33) is made of rubber material and is composed of a cylinder and a frustum. The limiting buckle (33) limits the mounting plate (31) on the surface of the fixing block (32).

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