Explosion-proof combustible gas detector

Abstract

The utility model discloses an explosion-proof combustible gas detector, which is characterized by comprising a detector shell, a wiring groove is arranged on the surface of the detector shell, a transmission gear ring is fixedly connected below the wiring groove, an arc-shaped transmission plate is slidably mounted in the transmission groove, and rolling wheels are rotatably mounted on two sides of the surface of the arc-shaped transmission plate. A detection head is fixedly connected to the tail end of the supporting plate, a detection cavity is formed in the detection head, a sensor is fixedly installed in the detection cavity, a detection fan is fixedly installed on one side of the sensor, and a transmission gear is fixedly connected to a transmission shaft of the transmission motor. The beneficial effects of the utility model are that the detection fan blows air into the detection cavity to improve the air velocity around the detection head, and the transmission motor drives the transmission gear and the detection head to turn and slide on the surface of the detector housing to improve the detection range of the detection head; the detection efficiency and sensitivity of the detection head on combustible gas leakage are effectively improved, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of combustible gas detectors, in particular to an explosion-proof combustible gas detector. Background Art

[0002] Combustible gas detectors are widely used in petrochemical, natural gas transportation, and industrial production environments. They monitor the concentration of combustible gases in the environment in real time. Once the concentration reaches a preset threshold, the detector immediately issues an alarm, thereby preventing fires or explosions. Existing combustible gas detectors are primarily installed in fixed locations, typically in critical areas where leaks are likely to occur.

[0003] However, in practical applications, this fixed installation method has certain limitations. First, because the detector is fixed in position, it can only monitor gas conditions within a certain range around it. This means that if the combustible gas leak point is far away from the detector, the gas needs to diffuse naturally to reach the detector's sensing area, resulting in a longer detection response time. Second, in some complex industrial environments, such as areas with dense pipelines or confined spaces, the gas diffusion path may be obstructed, further slowing the gas's arrival at the detector and increasing safety risks. Currently, no effective solution has been proposed to address the problems in related technologies. Utility Model Content

[0004] In view of the problems in the related technology, the present invention proposes an explosion-proof combustible gas detector to overcome the above technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted in this utility model are as follows:

[0006] A kind of explosion-proof combustible gas detector comprises a detector shell, the surface of the detector shell is provided with a wiring groove, the lower part of the wiring groove is fixedly connected to a transmission gear ring, the surface of the detector shell is provided with transmission grooves on both sides, an arc-shaped transmission plate is slidably installed inside the transmission groove, rolling wheels are rotatably installed on both sides of the surface of the arc-shaped transmission plate, the rolling wheels are rollingly installed on the inner wall of the transmission groove, one end of the arc-shaped transmission plate is fixedly connected to a support plate, the end of the support plate is fixedly connected to a detection head, a detection cavity is provided inside the detection head, a sensor is fixedly installed inside the detection cavity, a detection fan is fixedly installed on one side of the sensor, a transmission motor is fixedly installed on one end of the detection head, a transmission gear is fixedly connected to the transmission shaft of the transmission motor, and the transmission gear is meshed with the transmission gear ring.

[0007] Furthermore, in order to realize automatic control of various electrical components in the detector, a mounting groove is opened inside the detector housing, a control circuit board is fixedly installed inside the mounting groove, and a display screen is fixedly installed on the surface of the detector housing.

[0008] Furthermore, in order to enable the detector to issue an alarm after detecting combustible gas, an alarm is fixedly connected to the surface of one side of the detector housing.

[0009] Furthermore, in order to facilitate the fixed installation of the detector housing, support frames are fixedly installed on both sides of the surface of the detector housing, and positioning holes are opened on the surfaces of the support frames.

[0010] Furthermore, in order to quickly discharge the air blown into the detection cavity by the detection fan, exhaust holes are opened on the surface of the detection head.

[0011] Furthermore, in order to facilitate the control of the switch of the entire detector, an indicator light is fixedly installed on the surface of the detector housing, and a control switch is fixedly installed on one side of the indicator light.

[0012] Furthermore, in order to provide power to the electrical components in the detector, a power interface is provided on one side of the surface of the detector housing.

[0013] The beneficial effects of the present utility model are as follows: through the detection fan fixedly installed at the end of the detection head, the air around the detection head is continuously blown to the sensor in the detection cavity, which can effectively improve the detection efficiency of the sensor and the air flow rate around the detection head, increase the diffusion rate when the combustible gas leaks, and reduce the response time; after the transmission motor drives the transmission gear to rotate, the transmission gear drives the detection head to continuously turn and move on one side of the detector housing, effectively improving the detection range of the detection head, realizing rapid detection and alarm when the combustible gas leaks, and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the surface structure of an explosion-proof combustible gas detector according to an embodiment of the present utility model;

[0016] Figure 2 This is an internal cross-sectional view of a detector housing in an explosion-proof combustible gas detector according to an embodiment of the present utility model;

[0017] Figure 3 This is a side view of an explosion-proof combustible gas detector according to an embodiment of the present utility model;

[0018] Figure 4This is a schematic diagram of the installation structure of a detection head in an explosion-proof combustible gas detector according to an embodiment of the present utility model;

[0019] Figure 5 The figure shows an internal view of a detection cavity in an explosion-proof combustible gas detector according to an embodiment of the present utility model.

[0020] In the picture:

[0021] 1. Detector housing; 2. Wiring slot; 3. Transmission gear ring; 4. Transmission slot; 5. Arc-shaped transmission plate; 6. Roller; 7. Support plate; 8. Detection head; 9. Detection chamber; 10. Sensor; 11. Detection fan; 12. Transmission motor; 13. Transmission gear; 14. Mounting slot; 15. Control circuit board; 16. Display screen; 17. Alarm; 18. Support frame; 19. Positioning hole; 20. Exhaust hole; 21. Indicator light; 22. Control switch; 23. Power interface. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] According to an embodiment of the present utility model, an explosion-proof combustible gas detector is provided.

[0024] Example 1:

[0025] like Figure 1-Figure 5As shown, an explosion-proof combustible gas detector according to an embodiment of the present invention includes a detector housing 1 made of cemented carbide, a wiring groove 2 is opened on one side of the surface of the detector housing 1, a transmission gear ring 3 is fixedly connected to the bottom of the wiring groove 2, a pair of transmission grooves 4 are opened on the upper and lower sides of the surface of the detector housing 1, an arc-shaped transmission plate 5 is slidably installed inside each transmission groove 4, a pair of rolling wheels 6 are rotatably installed on both sides of the surface of the arc-shaped transmission plate 5, and the rolling wheels 6 are rollingly installed on the inner wall of the transmission groove 4 for realizing the sliding of the arc-shaped transmission plate 5 in the transmission groove 4; one end of the arc-shaped transmission plate 5 is fixedly connected to a support plate 7, the end of the support plate 7 is fixedly connected to a detection head 8, and the detection head 8 has a detection cavity 9 opened inside. A sensor 10 is fixedly installed inside the detection cavity 9. The sensor 10 is a semiconductor sensor 10, which detects through the characteristic that the resistance of the metal oxide semiconductor material changes when it comes into contact with the combustible gas; a detection fan 11 is fixedly installed on one side of the sensor 10, which is used to blow the air outside the detection cavity 9 to the surface of the sensor 10 after rotation; a transmission motor 12 is fixedly installed on one end of the detection head 8 close to the support plate 7, and a transmission gear 13 is fixedly connected to the transmission shaft of the transmission motor 12. The transmission gear 13 is meshed with the transmission gear ring 3, and the transmission motor 12 drives the transmission gear 13 to rotate, so that the transmission gear 13 drives the detection head 8 to continuously turn and move along the transmission groove 4 on one side of the detector housing 1.

[0026] like Figure 1-Figure 5 As shown, the detector housing 1 is provided with an installation slot 14, and a control circuit board 15 is fixedly installed inside the installation slot 14. The electrical components in the detection head 8 are electrically connected to the control circuit board 15 through the wiring slot 2, so as to realize automatic control of each electrical component in the detector; a display screen 16 is fixedly installed on the surface of the detector housing 1 for displaying the detected combustible gas concentration; an alarm 17 is fixedly connected to the surface of one side of the detector housing 1, which is used to alarm when the sensor 10 detects a combustible gas leak; support frames 18 are fixedly installed on both sides of the surface of the detector housing 1, and positioning holes 19 are provided on the surface of the support frame 18 for conveniently fixing the detector housing in the area to be detected; an exhaust hole 20 is provided on the surface of the detection head 8 for quickly discharging the air blown into the detection cavity 9 by the detection fan 11; an indicator light 21 is fixedly installed on the surface of the detector housing 1 for indicating the working status of the detector; a control switch 22 is fixedly installed on one side of the indicator light 21 for switching the detector as a whole; a power interface 23 is provided on one side of the surface of the detector housing 1 for connecting the electrical components in the detector to a power supply.

[0027] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process is described in detail below.

[0028] To sum up, with the help of the above-mentioned technical scheme of the present invention, the detector housing 1 is fixedly installed in the area to be detected through the positioning hole 19 on the support frame 18, and the detector is started through the control switch 22 after the power interface 23 is connected to the power. The detection fan 11 fixedly installed at the end of the detection head 8 continuously blows the air around the detection head 8 to the sensor 10 in the detection chamber 9, so that the detector detects the combustible gas in the air, effectively improving the detection efficiency of the sensor 10 and the air flow rate around the detection head 8. After the transmission motor 12 drives the transmission gear 13 to rotate, the arc-shaped transmission plate 5 installed in the transmission groove 4 is slidably installed, so that the transmission gear 13 drives the detection head 8 and the support plate 7 to continuously turn and move along the transmission groove 4 on one side of the detector housing 1, thereby increasing the detection range of the sensor 10 in the detection head 8. When leaked combustible gas is detected in the air, the control circuit board 15 controls the alarm 17 to emit sound and light to alarm.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An explosion-proof combustible gas detector, characterized in that: The invention comprises a detector housing (1), a wiring groove (2) is provided on the surface of the detector housing (1), a transmission gear ring (3) is fixedly connected below the wiring groove (2), transmission grooves (4) are provided on both sides of the surface of the detector housing (1), an arc-shaped transmission plate (5) is slidably installed inside the transmission groove (4), rolling wheels (6) are rotatably installed on both sides of the surface of the arc-shaped transmission plate (5), the rolling wheels (6) are rollingly installed on the inner wall of the transmission groove (4), and one end of the arc-shaped transmission plate (5) is fixedly connected to A support plate (7) is provided, wherein the end of the support plate (7) is fixedly connected to a detection head (8), a detection cavity (9) is provided inside the detection head (8), a sensor (10) is fixedly installed inside the detection cavity (9), a detection fan (11) is fixedly installed on one side of the sensor (10), a transmission motor (12) is fixedly installed on one end of the detection head (8), a transmission gear (13) is fixedly connected to the transmission shaft of the transmission motor (12), and the transmission gear (13) is meshed with the transmission gear ring (3).

2. The explosion-proof combustible gas detector according to claim 1, characterized in that: A mounting groove (14) is provided inside the detector housing (1), a control circuit board (15) is fixedly installed inside the mounting groove (14), and a display screen (16) is fixedly installed on the surface of the detector housing (1).

3. The explosion-proof combustible gas detector according to claim 1, characterized in that: An alarm (17) is fixedly connected to one side surface of the detector housing (1).

4. The explosion-proof combustible gas detector according to claim 1, characterized in that: Support frames (18) are fixedly mounted on both sides of the surface of the detector housing (1), and positioning holes (19) are opened on the surface of the support frames (18).

5. The explosion-proof combustible gas detector according to claim 1, characterized in that: An exhaust hole (20) is provided on the surface of the detection head (8).

6. The explosion-proof combustible gas detector according to claim 1, characterized in that: An indicator light (21) is fixedly mounted on the surface of the detector housing (1), and a control switch (22) is fixedly mounted on one side of the indicator light (21).

7. The explosion-proof combustible gas detector according to claim 1, characterized in that: A power supply interface (23) is provided on one side of the surface of the detector housing (1).

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