Combustible gas detector based on Internet of Things

Abstract

The utility model relates to the technical field of gas detectors, and discloses an Internet of Things combustible gas detector which comprises an installation shell, a combustible gas detector body is fixedly installed in the installation shell, a loudspeaker is fixedly installed at the front end of the combustible gas detector body, a PLC is fixedly installed at the top of the combustible gas detector body, and the PLC is connected with the installation shell. And a power interface is fixedly formed in the bottom of the mounting shell. The filter screen is fixed through the elastic potential energy of the first spring and the two sets of fixing heads, the fixing heads contract towards the interior of the first sliding groove through pressing of the button, the filter screen is further replaced, compared with a traditional device, external gas is filtered through the arrangement of the filter screen, and the filter screen is convenient to replace. The dust and oil smoke are prevented from interfering with the work of the vent holes, the gas detection efficiency is guaranteed, the filter screen can be detached by pressing the button, the filter screen is convenient to replace and clean, and the maintenance burden of the device is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detectors, and more specifically, to an Internet of Things combustible gas detector. Background Art

[0002] A combustible gas detector is a point-type gas detection device installed in an explosive environment. It converts the combustible gas concentration on site into an electrical signal and transmits it to a monitoring device located in a safe area to monitor the combustible gas concentration on site.

[0003] After being installed in the detection environment, the combustible gas detector will fully detect the concentration of combustible gas in the environment. When the combustible gas reaches a certain threshold, the detector will emit a high-frequency sound and light alarm signal to ensure personnel safety.

[0004] At present, in order to ensure the accuracy of detection, combustible gas detectors are usually installed near the gas source and within 1.5 meters from the gas source. When using gas in daily household, cooking will produce a lot of oil smoke, and when using gas industrially, incineration and forging will also increase the dust and impurities in the air. When there are more impurities in the air, the air inlet of the detector will be blocked by impurities, affecting the sensing sensitivity of the detector and making the detection efficiency low. In addition, the air inlet is small and inconvenient to remove, which will increase the difficulty of removing impurities. Therefore, it needs to be improved and optimized. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the utility model provides an Internet of Things combustible gas detector, which has the advantages of high detection efficiency and easy maintenance.

[0006] To achieve the above-mentioned object, the present utility model provides the following technical solution: an Internet of Things combustible gas detector, comprising a mounting housing, wherein a combustible gas detector is fixedly mounted inside the mounting housing, a speaker is fixedly mounted on the front end of the combustible gas detector, a PLC controller is fixedly mounted on the top of the combustible gas detector, and a power supply interface is fixedly opened at the bottom of the mounting housing;

[0007] The left and right inner walls of the mounting shell are both fixedly mounted with air vents, a filter screen is detachably mounted on one side of the air vent, a slide groove 1 is fixedly provided on the front and rear sides of the filter screen, the slide groove 1 is provided on the inner wall of the mounting shell, a driving block is slidably mounted inside the slide groove 1, a notch is fixedly provided in the middle of the driving block, a fixing head is fixedly mounted on one end of the driving block, and the other end of the driving block is elastically connected to the inner wall of the slide groove 1 via a spring 1;

[0008] A second slide groove is fixedly provided on one side of the first slide groove, a button is slidably installed inside the second slide groove, a transmission block is fixedly installed on one end of the prime button, and one end of the button and the inner wall of the second slide groove are elastically connected by a second spring.

[0009] As an optimal technical solution of the present invention, fixed cylinders are fixedly installed on the upper and lower ends of the rear wall of the mounting shell, and sealing chambers are fixedly installed on the rear ends of the two groups of fixed cylinders. Suction cups are fixedly installed on the rear ends of the sealing chambers, and a sealing plate is movably installed inside the sealing chambers.

[0010] As a preferred technical solution of the present invention, holes are provided at the front and rear ends of the filter screen for the movement of the fixed head, and the fixed head and the filter screen are in contact with each other through the elastic potential energy of the spring.

[0011] As a preferred technical solution of the present invention, the shape of the transmission block is a right-angled trapezoid, the inclined surface and the notch of the transmission block fit together, and the transmission block conflicts with the notch through the elastic potential energy of the second spring.

[0012] As an optimal technical solution of the present invention, a sound hole is fixedly opened on the front side of the mounting shell, a status indicator light is fixedly installed above the sound hole, the status indicator light and the PLC controller are connected to each other, and a self-test button is fixedly installed on the top of the combustible gas detector, and one end of the self-test button passes through the outside of the mounting shell.

[0013] As an optimal technical solution of the present invention, a gear ring is rotatably installed on the outer wall of the sealing chamber, the gear ring is located inside the fixed cylinder, the interior of the gear ring is threadedly sleeved with the screw, and one end of the screw is fixedly connected to the sealing plate.

[0014] As a preferred technical solution of the present invention, a control ring is rotatably mounted on the outer wall of the sealing chamber, and teeth are provided on the outer wall of the control ring. The control ring and the gear ring are meshed with each other.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The utility model fixes the filter screen with two sets of fixed heads through the elastic potential energy of the spring 1. By pressing the button, the transmission block moves along the inclined surface of the notch, driving the fixed head to retract into the inside of the slide groove 1, thereby further completing the replacement of the filter screen. Compared with the traditional device, the device filters the external gas through the setting of the filter screen, preventing dust and oil smoke from interfering with the work of the vent hole, thereby ensuring the efficiency of gas detection. By pressing the button, the filter screen can be removed, which is convenient for replacing and cleaning the filter screen, reducing the maintenance burden of the device and making gas detection more accurate.

[0017] 2. The utility model controls the rotation of the ring to drive the screw to drive the sealing plate to move along the sealing chamber, and further the air inside the suction cup is extracted, so that the suction cup and the installation wall fit tightly. Compared with the traditional device, the device fixes the installation shell through the suction cup, realizing lossless installation, and does not need to be fixed to the inside of the wall by bolts, which greatly improves the versatility of the device, avoids damage to the wall, and is simple and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the suction cup structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the filter structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the drive block of the utility model;

[0023] Figure 6 This is a schematic diagram of the sealed chamber structure of the utility model;

[0024] Figure 7 This is a schematic diagram of the gear ring structure of the present utility model.

[0025] In the figure: 1. Installation shell; 2. Combustible gas detector; 3. Speaker; 4. PLC controller; 5. Sound outlet; 6. Status indicator light; 7. Self-test button; 8. Power interface; 9. Vent; 10. Filter; 11. Slide 1; 12. Drive block; 13. Notch; 14. Spring 1; 15. Fixed head; 16. Slide 2; 17. Button; 18. Drive block; 19. Spring 2; 20. Fixed cylinder; 21. Sealing chamber; 22. Suction cup; 23. Sealing plate; 24. Screw; 25. Gear ring; 26. Control ring. DETAILED DESCRIPTION

[0026] 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.

[0027] like Figures 1 to 7As shown, the utility model provides an Internet of Things combustible gas detector, comprising a mounting housing 1, a combustible gas detector 2 fixedly mounted inside the mounting housing 1, a speaker 3 fixedly mounted on the front end of the combustible gas detector 2, a PLC controller 4 fixedly mounted on the top of the combustible gas detector 2, and a power supply interface 8 fixedly opened at the bottom of the mounting housing 1;

[0028] Ventilation holes 9 are fixedly installed on the inner walls on both sides of the mounting shell 1. A filter screen 10 is detachably installed on one side of the vent hole 9. A slide groove 11 is fixedly provided on the front and rear sides of the filter screen 10. The slide groove 11 is provided on the inner wall of the mounting shell 1. A driving block 12 is slidably installed inside the slide groove 11. A notch 13 is fixedly provided in the middle of the driving block 12. A fixing head 15 is fixedly installed on one end of the driving block 12. The other end of the driving block 12 is elastically connected to the inner wall of the slide groove 11 by a spring 14.

[0029] A second slide groove 16 is fixedly provided on one side of the first slide groove 11, and a button 17 is slidably installed inside the second slide groove 16. A transmission block 18 is fixedly installed on one end of the prime button 17, and one end of the button 17 is elastically connected to the inner wall of the second slide groove 16 by a second spring 19.

[0030] After the installation of the housing 1 is completed, the staff connects the power supply through the power interface 8, and then presses the self-test button 7 to start the self-test of the combustible gas detector 2. After normal operation, the combustible gas detector 2 starts to detect. When excessive combustible gas is detected by the combustible gas detector 2 through the vent 9, the PLC controller 4 will control the status indicator 6 to be always on, and the speaker 3 will alert the outside world through the sound hole 5. During long-term detection, the dust and oil smoke contained in the gas will be isolated by the filter 10, making the filtering performance of the filter 10 worse. At this time, the staff presses the button 17 inward, and the button 17 moves inward along the slide groove 16 and The drive transmission block 18 and the slot 13 conflict with each other. At this time, the displacement of the transmission block 18 will squeeze the slot 13, causing the slot 13 to slide along the slide groove 11 toward the inner side of the slide groove 11. The fixed head 15 is further retracted into the inside of the slide groove 11, so that the filter 10 is completely disassembled. After the replacement or cleaning of the filter 10 is completed, the staff pushes the filter 10 back into the side of the mounting shell 1 and releases the button 17. At this time, the elastic potential energy of the spring 2 19 will reset the transmission block 18, and the driving block 12 that has lost the conflict with the transmission block 18 will use the elastic potential energy of the spring 14 to reinsert the fixed head 15 into the front and rear sides of the filter 10 to fix the filter 10.

[0031] Through the elastic potential energy of spring 14, two sets of fixed heads 15 fix the filter 10, and by pressing the button 17, the transmission block 18 moves along the inclined surface of the slot 13, driving the fixed head 15 to shrink into the slide groove 11, further completing the replacement of the filter 10. Compared with the traditional device, the device filters the external gas through the setting of the filter 10, preventing dust and oil smoke from interfering with the operation of the vent 9, thereby ensuring the efficiency of gas detection. By pressing the button 17, the filter 10 can be removed, which is convenient for replacing and cleaning the filter 10, reducing the maintenance burden of the device and making gas detection more accurate.

[0032] Among them, fixed cylinders 20 are fixedly installed at the upper and lower ends of the rear wall of the mounting shell 1, and sealing chambers 21 are fixedly installed at the rear ends of the two groups of fixed cylinders 20. Suction cups 22 are fixedly installed at the rear ends of the sealing chambers 21, and a sealing plate 23 is movably installed inside the sealing chambers 21.

[0033] The staff first determines the installation position of the combustible gas detector, then aligns the suction cup 22 with the installation wall, and presses the installation shell 1 to make the suction cup 22 fit tightly against the wall. At this time, the staff rubs the control ring 26 with their fingers to rotate the control ring 26. The rotation of the control ring 26 drives the gear ring 25 to rotate, and the interior of the gear ring 25 is threadedly connected to the screw 24, so that the screw 24 drives the sealing plate 23 to move along the sealing chamber 21. At this time, the air inside the suction cup 22 is extracted to form a negative pressure environment. The suction cup 22 is further tightly fixed to the wall to complete the installation of the installation shell 1.

[0034] By rotating the control ring 26, the screw 24 drives the sealing plate 23 to move along the sealing chamber 21, and the air inside the suction cup 22 is further extracted, so that the suction cup 22 and the installation wall are closely fitted. Compared with the traditional device, the device fixes the installation shell 1 through the suction cup 22, realizing lossless installation, and does not need to be fixed to the inside of the wall by bolts, which greatly improves the versatility of the device, avoids damage to the wall, and is simple and beautiful.

[0035] Among them, the front and rear ends of the filter screen 10 are provided with holes for the fixed head 15 to move, and the fixed head 15 is in contact with the filter screen 10 through the elastic potential energy of the spring 14.

[0036] The two sets of fixing heads 15 fix the front and rear sides of the filter screen 10 through the elastic potential energy of the spring 14, and the installation is quick.

[0037] The transmission block 18 is in the shape of a right-angled trapezoid, the inclined surface of the transmission block 18 and the notch 13 fit together, and the transmission block 18 contacts the notch 13 through the elastic potential energy of the second spring 19 .

[0038] The button 17 moves inward along the second slide groove 16 and drives the transmission block 18 and the slot 13 to conflict with each other. At this time, the displacement of the transmission block 18 squeezes the slot 13, causing the slot 13 to slide along the first slide groove 11 toward the inner side of the first slide groove 11.

[0039] Among them, a sound hole 5 is fixedly opened on the front side of the mounting shell 1, a status indicator light 6 is fixedly installed above the sound hole 5, the status indicator light 6 and the PLC controller 4 are connected to each other, and a self-test button 7 is fixedly installed on the top of the combustible gas detector 2, and one end of the self-test button 7 passes through the outside of the mounting shell 1.

[0040] When excessive combustible gas is detected by the combustible gas detector 2 through the vent hole 9, the PLC controller 4 will control the status indicator light 6 to be always on, and the speaker 3 will alert the outside world through the sound outlet 5.

[0041] Among them, a gear ring 25 is rotatably installed on the outer wall of the sealing chamber 21. The gear ring 25 is located inside the fixed cylinder 20. The interior of the gear ring 25 is threadedly connected to the screw 24, and one end of the screw 24 is fixedly connected to the sealing plate 23.

[0042] A control ring 26 is rotatably mounted on the outer wall of the sealing chamber 21 . The outer wall of the control ring 26 is provided with teeth, and the control ring 26 and the gear ring 25 are meshed with each other.

[0043] When the gear ring 25 rotates, the interior of the gear ring 25 is threadedly engaged with the screw 24, so that the screw 24 drives the sealing plate 23 to move along the sealing chamber 21, and at this time, the air inside the suction cup 22 is sucked out.

[0044] The working principle and use process of this utility model:

[0045] The staff first determines the installation position of the combustible gas detector, then aligns the suction cup 22 with the installation wall, and presses the installation shell 1 to make the suction cup 22 fit tightly against the wall. At this time, the staff rubs the control ring 26 with their fingers to rotate the control ring 26. The rotation of the control ring 26 drives the gear ring 25 to rotate, and the interior of the gear ring 25 is threadedly connected to the screw 24, so that the screw 24 drives the sealing plate 23 to move along the sealing chamber 21. At this time, the air inside the suction cup 22 is extracted to form a negative pressure environment. The suction cup 22 is further tightly fixed to the wall to complete the installation of the installation shell 1.

[0046] After the installation of the housing 1 is completed, the staff connects the power supply through the power interface 8, and then presses the self-test button 7 to start the self-test of the combustible gas detector 2. After normal operation, the combustible gas detector 2 starts to detect. When excessive combustible gas is detected by the combustible gas detector 2 through the vent 9, the PLC controller 4 will control the status indicator 6 to be always on, and the speaker 3 will alert the outside world through the sound hole 5. During long-term detection, the dust and oil smoke contained in the gas will be isolated by the filter 10, making the filtering performance of the filter 10 worse. At this time, the staff presses the button 17 inward, and the button 17 moves inward along the slide groove 16 and The drive transmission block 18 and the slot 13 conflict with each other. At this time, the displacement of the transmission block 18 will squeeze the slot 13, causing the slot 13 to slide along the slide groove 11 toward the inner side of the slide groove 11. The fixed head 15 is further retracted into the inside of the slide groove 11, so that the filter 10 is completely disassembled. After the replacement or cleaning of the filter 10 is completed, the staff pushes the filter 10 back into the side of the mounting shell 1 and releases the button 17. At this time, the elastic potential energy of the spring 2 19 will reset the transmission block 18, and the driving block 12 that has lost the conflict with the transmission block 18 will use the elastic potential energy of the spring 14 to reinsert the fixed head 15 into the front and rear sides of the filter 10 to fix the filter 10.

[0047] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An Internet of Things combustible gas detector, comprising a mounting housing (1), characterized in that: A combustible gas detector (2) is fixedly installed inside the installation housing (1), a speaker (3) is fixedly installed at the front end of the combustible gas detector (2), a PLC controller (4) is fixedly installed at the top of the combustible gas detector (2), and a power supply interface (8) is fixedly opened at the bottom of the installation housing (1); The left and right inner walls of the mounting shell (1) are both fixedly mounted with vent holes (9), a filter screen (10) is detachably mounted on one side of the vent hole (9), a slide groove (11) is fixedly provided on both the front and rear sides of the filter screen (10), the slide groove (11) is arranged on the inner wall of the mounting shell (1), a driving block (12) is slidably mounted inside the slide groove (11), a notch (13) is fixedly provided in the middle of the driving block (12), a fixed head (15) is fixedly mounted on one end of the driving block (12), and the other end of the driving block (12) and the inner wall of the slide groove (11) are elastically connected via a spring (14); A second slide groove (16) is fixedly provided on one side of the first slide groove (11), a button (17) is slidably installed inside the second slide groove (16), a transmission block (18) is fixedly installed on one end of the prime button (17), and one end of the button (17) and the inner wall of the second slide groove (16) are elastically connected via a second spring (19).

2. The Internet of Things combustible gas detector according to claim 1, characterized in that: The upper and lower ends of the rear wall of the mounting shell (1) are fixedly mounted with fixing cylinders (20), the rear ends of the two groups of fixing cylinders (20) are fixedly mounted with sealing chambers (21), the rear ends of the sealing chambers (21) are fixedly mounted with suction cups (22), and the interior of the sealing chambers (21) is movably mounted with sealing plates (23).

3. The Internet of Things combustible gas detector according to claim 1, characterized in that: The front and rear ends of the filter screen (10) are provided with holes for the fixed head (15) to move, and the fixed head (15) and the filter screen (10) are in conflict with each other through the elastic potential energy of the spring (14).

4. The Internet of Things combustible gas detector according to claim 1, characterized in that: The shape of the transmission block (18) is a right-angled trapezoid, the inclined surface of the transmission block (18) and the notch (13) fit each other, and the transmission block (18) and the notch (13) conflict with each other through the elastic potential energy of the second spring (19).

5. The Internet of Things combustible gas detector according to claim 1, characterized in that: A sound outlet hole (5) is fixedly provided on the front side of the mounting shell (1), a status indicator light (6) is fixedly installed above the sound outlet hole (5), the status indicator light (6) and the PLC controller (4) are interconnected, and a self-test button (7) is fixedly installed on the top of the combustible gas detector (2), one end of the self-test button (7) extends to the outside of the mounting shell (1).

6. The Internet of Things combustible gas detector according to claim 2, characterized in that: A gear ring (25) is rotatably mounted on the outer wall of the sealing chamber (21). The gear ring (25) is located inside the fixed cylinder (20). The interior of the gear ring (25) is threadedly sleeved with a screw rod (24). One end of the screw rod (24) is fixedly connected to the sealing plate (23).

7. The Internet of Things combustible gas detector according to claim 2, characterized in that: A control ring (26) is rotatably mounted on the outer wall of the sealing chamber (21), and teeth are provided on the outer wall of the control ring (26). The control ring (26) and the gear ring (25) are meshed with each other.

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