CN213123293U - Explosion-proof combustible gas alarm - Google Patents

Abstract

The utility model provides an explosion-proof combustible gas alarm, including the alarm body, a control cabinet, photoelectric alarm device, the probe, the filter screen, the cleaning brush, the constant head tank, the linked system, be equipped with the installation ear on the alarm body, alarm body bottom is equipped with the probe, the probe bottom is equipped with the filter screen, the central point of filter screen puts and installs the installation department, the installation department is hollow cylindrical structure, its inner wall is equipped with the internal thread, the filter screen bottom is equipped with the cleaning brush, the position that cleaning brush and installation department correspond is equipped with the pivot, the pivot top is equipped with the bearing, the outer wall of bearing is equipped with the external screw thread, the external screw thread of bearing outer wall is connected with the interior screw-thread fit of installation department, the bottom of pivot is equipped with the constant head tank, alarm body top is equipped with. The utility model discloses can report to the police and effectively move as relevant personnel and get rid of the dangerous situation and strive for the certain time in the very first time of discovery dangerous situation.

Description

Explosion-proof combustible gas alarm

Technical Field

The utility model relates to an alarm field especially relates to an explosion-proof combustible gas alarm.

Background

The gas alarm is a gas leakage detection alarm instrument. When gas leaks in industrial environment and the gas alarm detects that the gas concentration reaches the critical point set by the explosion or poison alarm, the gas alarm can send out an alarm signal. The gas alarm is equivalent to an automatic fire extinguisher, and can be provided with a driving exhaust, cutting off and spraying system to prevent explosion, fire and poisoning accidents, thereby ensuring safe production. The gas alarm can measure the concentration of various gases. The gas leakage prevention device is often used in places with gas leakage, such as chemical plants, petroleum, gas stations, steel plants and the like.

The prior combustible gas alarm is generally arranged in a kitchen when in use, the detection port of the prior combustible gas alarm is easy to block under the long-term adhesion of oil smoke stains, so that the detection failure is caused, in addition, the prior combustible gas alarm only has the functions of detection and alarm, so that if combustible gas leakage occurs, the alarm gives an alarm, but the alarm is not timely received by related personnel and eliminates the dangerous case, the danger of explosion caused by naked fire is very easy to occur, therefore, how to design the explosion-proof combustible gas alarm can give an alarm at the first time when the dangerous case is found, and can effectively act as the related personnel to eliminate the dangerous case for a certain time, thus becoming the problem which is urgently needed to be solved in the field.

Disclosure of Invention

According to the technical problems, the utility model provides an explosion-proof combustible gas alarm, which comprises an alarm body, a mounting lug, a control cabinet, a photoelectric alarm device, a probe, a filter screen, a mounting part, a cleaning brush, a rotating shaft, a bearing, a positioning groove and a linkage system, the alarm body is provided with a mounting ear, the bottom of the alarm body is provided with a probe, a sensor is arranged in the probe, the bottom of the probe is provided with a filter screen, the central position of the filter screen is provided with an installation part which is a hollow cylindrical structure, the inner wall of the filter screen is provided with internal threads, the bottom of the filter screen is provided with a cleaning brush, the position of the cleaning brush corresponding to the mounting part is provided with a rotating shaft, the top of the rotating shaft is provided with a bearing, the outer wall of the bearing is provided with external threads, the external threads of the outer wall of the bearing are matched and connected with the internal threads of the mounting part, and the bottom of the rotating shaft is provided with a positioning groove;

the top of the alarm body is respectively provided with a control cabinet and a photoelectric alarm device, the linkage system realizes linkage control with the photoelectric alarm device, a sensor in the probe and the range hood, and the linkage system takes the control cabinet as a hardware carrier.

Furthermore, the cleaning brush is of a long strip-shaped structure, and bristles of the cleaning brush are upwards contacted with the filter screen.

Furthermore, the positioning groove is a straight groove.

The utility model has the advantages that: the utility model relates to an explosion-proof combustible gas alarm, through setting up the cleaning brush, realize the rotation of cleaning brush on the filter screen through the screwdriver card in constant head tank department, thereby avoid detecting the mouth and take place the condition of blockking up under the long-term adhesion of oil smoke spot, in addition, realize alarm body and range hood linkage through linked system, after the alarm body detects contains combustible gas in the air, open range hood immediately and gas outgoing, if take place combustible gas leakage like this, the alarm sends out the police dispatch newspaper, even if not in time received and eliminate the dangerous situation by relevant personnel, because the incessant suction of range hood reduces combustible gas's concentration, avoided meeting the danger of naked light explosion, consequently can report to the police and effectively move and get rid of the dangerous situation for the dead time as relevant personnel in the very first time of discovery dangerous situation.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the probe of the present invention;

FIG. 3 is an enlarged schematic view of point A of the present invention;

fig. 4 is a bottom view of the filter screen of the present invention;

fig. 5 is a schematic diagram of the linkage system of the present invention.

As shown in the figure: the alarm comprises an alarm body-1, a mounting lug-2, a control cabinet-3, a photoelectric alarm device-4, a probe-5, a filter screen-6, a mounting part-7, a cleaning brush-8, a rotating shaft-9, a bearing-10 and a positioning groove-11.

Detailed Description

Example 1:

according to the technical problem, the utility model provides an explosion-proof combustible gas alarm, including alarm body 1, installation ear 2, switch board 3, photoelectric alarm device 4, probe 5, filter screen 6, installation department 7, cleaning brush 8, pivot 9, bearing 10, constant head tank 11, linked system, be equipped with installation ear 2 on the alarm body 1, alarm body 1 bottom is equipped with probe 5, probe 5 embeds there is the sensor, probe 5 bottom is equipped with filter screen 6, the central point of filter screen 6 is put and is installed installation department 7, installation department 7 is hollow cylindrical structure, and its inner wall is equipped with the internal thread, filter screen 6 bottom is equipped with cleaning brush 8, the position that cleaning brush 8 corresponds with installation department 7 is equipped with pivot 9, pivot 9 top is equipped with bearing 10, the outer wall of bearing 10 is equipped with the external screw thread, the external screw thread of bearing 10 outer wall is connected with the internal thread cooperation of installation department 7, a positioning groove 11 is formed at the bottom of the rotating shaft 9;

the top of the alarm body 1 is respectively provided with a control cabinet 3 and a photoelectric alarm device 4, the linkage system realizes linkage control with the photoelectric alarm device 4, a sensor in a probe 5 and the range hood, and the linkage system takes the control cabinet 3 as a hardware carrier.

Further, the cleaning brush 8 is a strip-shaped structure, and the brush bristles of the cleaning brush are upwards contacted with the filter screen 6.

Furthermore, the positioning groove 11 is a straight groove.

Example 2:

the working principle is as follows: the cleaning brush 8 is clamped at the positioning groove 11 through the screwdriver to rotate on the filter screen 6, the brush hair is always in contact with the bottom of the filter screen 6, attached stains and magazines are cleaned, and therefore the situation that a detection port is blocked under the long-term attachment of oil smoke stains is avoided; realize alarm body 1 and range hood linkage through linked system, after alarm body 1 detected to contain combustible gas in the air, linked system control range hood opens immediately, discharge gas, photoelectric alarm device 4 lamp dodges and sends buzzing, report to the police, if take place combustible gas and leak like this, the alarm sends the police dispatch newspaper, even if not in time received and eliminated the dangerous situation by relevant personnel, because the range hood incessantly pumps and reduces combustible gas's concentration, avoided meeting the danger of naked light explosion, consequently can report to the police and effectively move as relevant personnel and get rid of the dangerous situation and strive for the certain time in the very first time of finding the dangerous situation. Wherein, switch board 3 is as linkage system's hardware carrier, can set up the explosion lower limit value and the upper limit value of the sensor in the probe 5, and the range hood starting point is started immediately after the alarm body detects that the air contains combustible gas, rather than start when reaching the explosion lower limit value, the purpose that sets up like this is just discharging indoor air from the very beginning, can effectually prolong the required safe time of staff's removal dangerous situation, and avoid when combustible gas concentration reaches the explosion lower limit value, open the range hood and produce the electric spark thereby arouse the potential safety hazard that the explosion caused.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. The utility model discloses each part that mentions is the common technique in prior art, and the technical personnel of this trade should understand, the utility model discloses do not receive the restriction of above-mentioned embodiment, the description only is the explanation in above-mentioned embodiment and the description the principle of the utility model, under the prerequisite that does not deviate from the spirit and the scope of the utility model, the utility model discloses still can have various changes and improvement, these changes and improvement all fall into the protection of claim the utility model is within the scope. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (3)

1. An explosion-proof combustible gas alarm is characterized by comprising an alarm body, mounting lugs, a control cabinet, a photoelectric alarm device, a probe, a filter screen, a mounting part, a cleaning brush, a rotating shaft, a bearing, a positioning groove and a linkage system, wherein the mounting lugs are arranged on the alarm body;

the top of the alarm body is respectively provided with a control cabinet and a photoelectric alarm device, the linkage system realizes linkage control with the photoelectric alarm device, a sensor in the probe and the range hood, and the linkage system takes the control cabinet as a hardware carrier.

2. An explosion proof combustible gas alarm according to claim 1 wherein the cleaning brush is of elongate configuration with bristles upwardly directed to contact the screen.

3. An explosion proof combustible gas alarm according to claim 1 wherein the locating slot is a straight slot.

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