CN219957567U - Air suction type methane alarm - Google Patents

Abstract

The utility model provides an air suction type methane alarm, which comprises an alarm body and an acquisition and conveying mechanism, wherein a first pump body and a methane sensor are arranged in the alarm body, an air inlet structure is arranged on the alarm body, the air inlet structure is provided with a first acquisition position, the acquisition and conveying mechanism is provided with an acquisition end and an output end, the output end is connected with the air inlet structure, the acquisition end is provided with a second acquisition position, when an operator detects the methane concentration by adopting the air suction type methane alarm, the air suction type methane alarm detects the methane concentration in the environment by holding the acquisition and conveying mechanism, and the acquisition end in the acquisition and conveying mechanism can enable the operator to detect a space at a higher position, so that the air suction type methane alarm can detect the methane concentration in a space which is higher than the maximum height which can be reached by the arm of the operator.

Description

Air suction type methane alarm

Technical Field

The utility model belongs to the technical field of methane detection, and particularly relates to an air suction type methane alarm.

Background

Methane is an organic compound, which is a simple organic substance, and is also a hydrocarbon with the smallest carbon content (largest hydrogen content). Methane is widely distributed in nature, and is a main component of natural gas, biogas, pit gas and the like, commonly known as gas. Because methane belongs to inflammable gas, in places where methane is easy to generate, such as in mines, the concentration of methane needs to be detected so as to prevent safety accidents caused by exceeding the concentration of methane, thereby ensuring the life safety of workers in the mines.

The existing methane detection alarm is usually carried by a detector to detect the methane concentration, when the methane concentration is detected or collected, the detector usually hangs the methane detection alarm between waists, or the methane detection alarm is held by a hand to detect, so that the generated problems are that: by adopting the acquisition mode, the acquisition personnel is required to place the methane detection alarm at the position to be acquired so as to acquire or measure the methane concentration data, and the acquisition personnel is inconvenient to acquire the methane concentration of the high-position acquisition point above the maximum height reached by the arm of the acquisition personnel due to the height of the acquisition personnel and the limited maximum height reached by the arm of the acquisition personnel, so that the acquisition personnel is difficult to acquire the methane concentration data of the high-position acquisition point. If methane leakage generated at the high-position acquisition point cannot be detected in time, potential safety hazards are easily generated, and safety accidents are more easily caused.

Disclosure of Invention

The embodiment of the utility model aims to provide an air suction type methane alarm instrument, which aims to solve the technical problems that the detection height of a methane detection alarm instrument in the prior art is still to be improved and the detection space height is still to be improved.

In order to achieve the above purpose, the utility model adopts the following technical scheme: provided is an air-breathing methane alarm, comprising:

the alarm comprises an alarm body, wherein a first pump body and a methane sensor are arranged in the alarm body, an air inlet structure is arranged on the alarm body, a first air flow channel is arranged between the first pump body and the air inlet structure, the methane sensor is arranged in the first air flow channel, and the air inlet structure is provided with a first collecting position;

the collecting and conveying mechanism is provided with a collecting end and an output end, a second air flow channel is formed between the collecting end and the output end, the output end is connected to the air inlet structure, the second air flow channel is communicated with the first air flow channel, and the collecting end is provided with a second collecting position;

the first collecting position and the second collecting position are arranged at intervals.

Optionally, the collection and conveying mechanism includes:

a hard tube having the collection end;

the hose is provided with the output end, and one end of the hose, which is far away from the output end, is communicated with one end of the hard tube, which is far away from the acquisition end.

Optionally, the collection and conveying mechanism further includes:

the connecting piece is provided with a first connecting end and a second connecting end, the first connecting end is communicated with the second connecting end, one end, far away from the acquisition end, of the hard tube is connected to the first connecting end, and one end, far away from the output end, of the hose is connected to the second connecting end.

Optionally, the collection and conveying mechanism further includes:

the second pump body is arranged in the second airflow channel and is used for conveying target gas of the second airflow channel into the first airflow channel.

Optionally, the air inlet structure includes:

the air tap is connected with the alarm instrument body, a connecting part is arranged on the air tap, and the connecting part is fixedly connected with the air tap;

the connecting part is provided with a through hole, the through hole penetrates through the connecting part along the extending direction of the connecting part, and the through hole is communicated with the first air flow channel;

the output end is connected to the connecting portion.

Optionally, along the connecting portion deviates from one side of air cock is directed to connecting portion is towards one side of air cock's direction, connecting portion is the diameter and increases gradually and set up.

Optionally, the air tap further includes:

the protection piece is connected to the air tap and positioned at the outer side of the connecting part.

Optionally, the lateral wall of air cock is formed with a plurality of anti-skidding grooves, and is a plurality of the anti-skidding groove is followed the circumference of air cock evenly spaced.

Optionally, the air tap is in threaded connection with the alarm body.

The air suction type methane alarm provided by the utility model has the beneficial effects that: compared with the prior art, the air suction type methane alarm provided by the utility model comprises an alarm body and an acquisition and conveying mechanism, wherein a first pump body and a methane sensor are arranged in the alarm body, an air inlet structure is arranged on the alarm body, the air inlet structure is provided with a first acquisition position, the acquisition and conveying mechanism is provided with an acquisition end and an output end, the output end is connected with the air inlet structure, the acquisition end is provided with a second acquisition position, when an operator detects the methane concentration by adopting the air suction type methane alarm, the methane concentration in the environment is detected by holding the acquisition and conveying mechanism, and the acquisition end in the acquisition and conveying mechanism can enable the operator to detect the methane concentration in a space at a higher position, so that the air suction type methane alarm can detect the methane concentration at a space position higher than the maximum height which can be reached by the arm of the operator.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of the utility model for an aspiration methane alarm;

fig. 2 is a schematic structural diagram II of an air-breathing methane alarm provided by an embodiment of the utility model;

FIG. 3 is a schematic structural diagram of an alarm body according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of an alarm body provided by an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of an air tap according to an embodiment of the utility model.

Wherein, each reference sign in the figure:

10. an alarm body; 11. a display screen; 12. a buzzer; 13. an alarm lamp; 14. a key; 141. setting keys; 142. a left key; 143. a right key; 15. a back clip; 20. the collecting and conveying mechanism; 20a, a collection end; 20b, an output; 21. a hard tube; 22. a hose; 23. a connecting piece; 23a, a first connection end; 23b, a second connection end; 231. a switch button; 30. an air intake structure; 31. a first airflow passage; 32. an air tap; 33. a connection part; 331. a through hole; 34. a protective member; 35. an outer sidewall; 351. an anti-skid slot.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 5, an embodiment of the utility model of an air-breathing methane alarm device will be described.

An air suction type methane alarm comprises an alarm body 10 and a collecting and conveying mechanism 20.

The front of the alarm body 10 is provided with a display screen 11, a buzzer 12, an alarm lamp 13 and a key 14, and a first pump body, a methane sensor, a first controller, a first battery and a circuit board are arranged inside the alarm body 10. The back of the alarm body 10 is provided with a back clip 15. The first controller and the methane sensor are arranged on the circuit board, and the display screen 11, the buzzer 12, the alarm lamp 13, the keys 14, the first pump body, the methane sensor and the first battery are electrically connected with the first controller. The alarm instrument body 10 is provided with an air inlet structure 30, a first air flow channel 31 is arranged between the first pump body and the air inlet structure 30, the methane sensor is arranged in the first air flow channel 31, and a part of the air inlet structure 30, which is positioned outside the alarm instrument body 10, is provided with a first collecting position.

After the first pump body is started, air in the target environment is conveyed into a first airflow channel 31 in the alarm body 10 by the air inlet structure 30, so that the methane sensor can collect the concentration of methane gas in the target environment air. The methane sensor converts the collected methane concentration into a concentration electric signal, and transmits the methane concentration electric signal to the first controller, and the first controller controls the display screen 11 to display a concentration digital signal corresponding to the methane concentration electric signal according to the methane concentration electric signal after receiving the methane concentration electric signal so as to facilitate an operator to read methane concentration information.

If the methane concentration value in the air is larger than the preset concentration value set in the first controller, the first controller controls the buzzer 12 to give an alarm sound, and meanwhile, the first controller also controls the alarm lamp 13 to light or flash to inform an operator. The first battery is used for supplying power to the alarm instrument so that an operator carries the air suction type methane alarm instrument to detect the methane concentration of a target environment, and a charging interface is further arranged on the alarm instrument body 10 so as to charge the first battery.

The keys 14 comprise a setting key 141, a left key 142 and a right key 143, wherein the setting key 141 is used for opening and closing the alarm body 10 and adjusting the power of the first pump body, for example, when the alarm body 10 is in a shutdown state, the setting key 141 is pressed for a long time, for example, 4 seconds is pressed for a long time, the alarm body 10 is opened, and the display screen 11 enters a concentration acquisition interface; setting key 141 is pressed for a short time, so that the power of the first pump body can be adjusted, for example, the first body is in four states of low speed (300 mL/min), medium speed (500 mL/min), high speed (700 mL/min), and closing, and when the first body is in the closing state, alarm body 10 is in the closing state.

When the display screen 11 is in the concentration acquisition display interface, the left key 142 is pressed for a long time to enter a function menu interface, and the function menu interface comprises six functions of zero point, calibration, alarm, record, system and return. After one of the function items is selected, the display screen 11 adds an indication frame to the function item to indicate that the function item is currently in a selected state, and when the indication frame is added to the function item, the right key 143 is pressed for short time to enter a corresponding function; short presses of the "left key 142" may toggle function menu options, such as pointing to the next item; pressing the left key 142 multiple times until the instruction box selects the return, at which time the short press of the right key 143 returns to the concentration acquisition display interface.

The collection and conveying mechanism 20 has a collection end 20a and an output end 20b, a second air flow channel is formed between the collection end 20a and the output end 20b, the output end 20b is connected to the air inlet structure 30, the second air flow channel is communicated with the first air flow channel 31, and the collection end 20a has a second collection position. The first collecting position and the second collecting position are arranged at intervals.

When an operator uses the air suction methane alarm, the alarm body 10 can be fixed on the body through the back clamp 15, for example, the alarm body 10 is fixed on the waist through the back clamp 15. The second collecting position where the collecting end 20a is located is higher than the maximum height which can be reached by the arm of the collecting person by holding the collecting and conveying mechanism 20, so that the air suction methane alarm instrument can detect methane concentration in a space with higher height.

Compared with the prior art, the air suction type methane alarm provided by the utility model comprises an alarm body 10 and an acquisition and conveying mechanism 20, wherein a first pump body and a methane sensor are arranged in the alarm body 10, an air inlet structure 30 is arranged on the alarm body 10, the air inlet structure 30 is provided with a first acquisition position, the acquisition and conveying mechanism 20 is provided with an acquisition end 20a and an output end 20b, the output end 20b is connected with the air inlet structure 30, the acquisition end 20a is provided with a second acquisition position, when an operator detects the methane concentration by adopting the air suction type methane alarm, the acquisition and conveying mechanism 20 is held by hand to detect the methane concentration in the environment, and the acquisition end 20a in the acquisition and conveying mechanism 20 can enable the operator to detect a space at a higher position, so that the air suction type methane alarm can detect the methane concentration in a space which is higher than the maximum height which can be reached by the arm of the operator.

In the present utility model, the collection and delivery mechanism 20 includes a hard tube 21, a flexible tube 22, and a connector 23. Wherein. The hard tube 21 has a collection end 20a, the hose 22 has an output end 20b, the connector 23 has a first connection end 23a and a second connection end 23b, the first connection end 23a communicates with the second connection end 23b, one end of the hard tube 21 away from the collection end 20a is connected to the first connection end 23a, and one end of the hose 22 away from the output end 20b is connected to the second connection end 23b. The second air flow path is constituted by the hard tube 21, the connection piece 23, the tubing in the hose 22.

Specifically, when the operator detects the methane concentration in the target environment, the hand-held connector 23 is used to drive the collection end 20a of the hard tube 21 to move in the target space, and the hard tube 21 has a length, so that when the operator holds the connector 23 to drive the hard tube 21 to move, the collection end 20a on the hard tube 21 can move to a space higher than the maximum height reached by the arm of the collector to detect the methane concentration. The connecting piece 23 is connected with the alarm body 10 through the hose 22, so that the connecting piece 23 is convenient for driving the hard tube 21 to move relative to the alarm body 10.

In one embodiment of the present utility model, the collecting and conveying mechanism 20 further includes a second pump body, where the second pump body is disposed in the second airflow channel, and the second pump body is used to convey the target gas of the second airflow channel into the first airflow channel 31.

Preferably, the connecting piece 23 is internally provided with a containing cavity, the second pump body is installed in the containing cavity, the containing cavity is internally provided with a second battery and a second controller, the second pump body is connected in the connecting piece 23 and is electrically connected with the second controller, the second battery is electrically connected with the second controller, the connecting piece 23 is provided with a switch button 231, the switch button 231 is electrically connected with the second controller, the switch button 231 is used for connecting the second controller with the second battery to control the second pump body to work, the second controller is used for disconnecting the second controller from the second battery to control the second pump body to close, and the second pump body is used for conveying methane gas in the hard pipe 21 into the hose 22.

By installing the second pump body in the connecting piece 23, the methane gas collected by the collecting end 20a can be guaranteed to be quickly conveyed into the first air flow channel 31, and meanwhile, when the length sizes of the hard pipe 21 and the hose 22 are large, the second pump body assists the first pump body, so that the methane gas collected by the collecting end 20a can be conveyed into the first air flow channel 31 when the first pump body is in a low-power state.

In the present utility model, the air intake structure 30 includes an air tap 32, and the air tap 32 is screwed to the top end of the alarm body 10, so that the air tap 32 can be detached. The air tap 32 is provided with a connecting part 33, and the connecting part 33 and the air tap 32 are integrally arranged. The connection portion 33 is formed with a through hole 331, the through hole 331 penetrates the connection portion 33 along an extending direction of the connection portion 33, and the through hole 331 communicates with the first air flow passage 31. Along the direction that the one end that connecting portion 33 deviates from air cock 32 points to connecting portion 33 towards the one end of air cock 32, connecting portion 33 is the diameter and increases gradually and set up to make output 20b connect in connecting portion 33, guarantee the gas tightness between output 20b and connecting portion 33.

In the present utility model, the air tap 32 further includes a protecting member 34, the protecting member 34 is integrally disposed with the air tap 32, the protecting member 34 has a ring structure, and the protecting member 34 is located outside the connecting portion 33. Along the direction that the one end of connecting portion 33 deviates from air cock 32 to the one end of connecting portion 33 towards air cock 32, the length dimension of protection piece 34 is greater than or equal to the size of connecting portion 33 to prevent connecting portion 33 from being damaged by external force.

In the present utility model, the outer sidewall 35 of the air tap 32 is formed with a plurality of anti-slip grooves 351, and the plurality of anti-slip grooves 351 are uniformly spaced along the circumferential direction of the air tap 32, so that the air tap 32 can be easily detached from the alarm body 10 by providing the plurality of anti-slip grooves 351 on the outer wall of the air tap 32.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (9)

1. An aspiration methane alarm, comprising:

the alarm device comprises an alarm device body (10), wherein a first pump body and a methane sensor are arranged inside the alarm device body (10), an air inlet structure (30) is arranged on the alarm device body (10), a first air flow channel (31) is arranged between the first pump body and the air inlet structure (30), the methane sensor is arranged in the first air flow channel (31), and the air inlet structure (30) is provided with a first collecting position;

the collection and conveying mechanism (20) is provided with a collection end (20 a) and an output end (20 b), a second air flow channel is formed between the collection end (20 a) and the output end (20 b), the output end (20 b) is connected to the air inlet structure (30), the second air flow channel is communicated with the first air flow channel (31), and the collection end (20 a) is provided with a second collection position;

the first collecting position and the second collecting position are arranged at intervals.

2. The aspiration methane alert according to claim 1, wherein the collection and delivery mechanism (20) comprises:

-a rigid tube (21) having said collection end (20 a);

-a hose (22) having said output end (20 b), the end of said hose (22) remote from said output end (20 b) being in communication with the end of said rigid tube (21) remote from said collection end (20 a).

3. The aspiration methane alert of claim 2, wherein the collection and delivery mechanism (20) further comprises:

the connecting piece (23) is provided with a first connecting end (23 a) and a second connecting end (23 b), the first connecting end (23 a) is communicated with the second connecting end (23 b), one end, far away from the collecting end (20 a), of the hard pipe (21) is connected to the first connecting end (23 a), and one end, far away from the output end (20 b), of the hose (22) is connected to the second connecting end (23 b).

4. The aspiration methane alert device of claim 3, wherein the collection and delivery mechanism (20) further comprises:

the second pump body is arranged in the second airflow channel and is used for conveying target gas of the second airflow channel into the first airflow channel (31).

5. The aspiration methane alert according to claim 1 or 4, wherein the air intake structure (30) comprises:

the air tap (32) is connected to the alarm instrument body (10), a connecting part (33) is arranged on the air tap (32), and the connecting part (33) is fixedly connected with the air tap (32);

the connecting part (33) is provided with a through hole (331), the through hole (331) penetrates through the connecting part (33) along the extending direction of the connecting part (33), and the through hole (331) is communicated with the first air flow channel (31);

the output end (20 b) is connected to the connection portion (33).

6. The aspiration methane tank of claim 5,

the connecting part (33) is gradually increased in diameter along the direction that one side of the connecting part (33) away from the air tap (32) points to one side of the connecting part (33) towards the air tap (32).

7. The aspiration methane alert of claim 6, wherein the air tap (32) further comprises:

and a protector (34) connected to the air tap (32) and located outside the connecting portion (33).

8. The aspiration methane tank of claim 7,

the outer side wall (35) of the air tap (32) is provided with a plurality of anti-skid grooves (351), and the anti-skid grooves (351) are uniformly spaced along the circumferential direction of the air tap (32).

9. The aspiration methane tank of claim 8,

the air tap (32) is in threaded connection with the alarm body (10).