Anti-interference combustible gas detection device

Abstract

The invention belongs to the technical field of gas detection, provides a gas detection device for preventing particles from blocking through holes through a four-side dredging mechanism and removing particles on a sensor through a sensor cleaning mechanism, and particularly relates to an anti-interference combustible gas detection device. The device mainly comprises a cover body, a transverse through hole, a vertical through hole, a gas sensor, a four-side dredging mechanism and a sensor cleaning mechanism. According to the four-side dredging mechanism, a square plate, a right-angle extension plate, a top block and other components are driven by a motor, transverse and vertical through holes are dredged by a dredging block regularly, particle blockage is prevented, smooth entering of gas is guaranteed, and the sensor cleaning mechanism removes particles on the surface of a sensor through a scraping brush rod and a telescopic air injection rod, especially dredging of the transverse through holes and the vertical through holes, so that the cleaning efficiency is improved. Blockage caused by accumulation of gas particles can be effectively eliminated, so that combustible gas can enter the device through the through holes without being hindered, and a sensitive area of the sensor is prevented from being covered or polluted.

Description

Technical Field

[0001] The present invention belongs to the technical field of gas detection, and provides a gas detection device that prevents particle blockage of perforations through a four-sided dredging mechanism and removes particles on the sensor through a sensor cleaning mechanism, and particularly relates to an anti-interference combustible gas detection device. Background Art

[0002] Combustible gases widely exist in industrial production, daily life and other fields, such as natural gas, coal gas, liquefied petroleum gas, etc. Once these combustible gases leak and mix with air to reach a certain concentration, they may trigger serious accidents such as explosions and fires when encountering a fire source, posing a great threat to the lives and property safety of people. Therefore, it is crucial to accurately and timely detect the leakage of combustible gases, and combustible gas detection devices have also become important equipment for ensuring safety;

[0003] In the actual application environment, combustible gas detection devices are affected by various interference factors. Electromagnetic interference in the industrial environment may come from nearby large motors, transformers, high-frequency equipment, etc. When these devices operate, they generate strong electromagnetic fields that interfere with the electronic components and signal transmission of the detection device, resulting in measurement errors or even false alarms. Changes in environmental temperature and humidity also affect the detection results. The performance of the sensors of combustible gas detectors changes with temperature and humidity. For example, in a high-temperature environment, the sensitivity of the sensor may decrease, and in a high-humidity environment, problems such as signal drift may occur. In addition, impurities such as dust and smoke may adsorb on the surface of the sensor, affecting its adsorption and reaction to combustible gases, thereby reducing the detection accuracy;

[0004] Therefore, in the field of combustible gas detection, it is necessary to continuously explore and develop more effective anti-gas particle interference technologies to improve the stability and reliability of detection devices and ensure that they can accurately detect the leakage of combustible gases in various complex environments. Summary of the Invention

[0005] The present invention proposes an anti-interference combustible gas detection device, and the purpose of the present invention is to provide a gas detection device that prevents particle blockage of perforations through a four-sided dredging mechanism and removes particles on the sensor through a sensor cleaning mechanism.

[0006] The technical solution of the present invention is as follows: an anti-interference combustible gas detection device, including a housing, a horizontal perforation, a vertical perforation, a gas sensor, a four-sided dredging mechanism, and a sensor cleaning mechanism;

[0007] The four-way dredging mechanism includes a square plate, a right-angle extension plate 1, a right-angle extension plate 2, a right-angle extension plate 3, a right-angle extension plate 4, a sealing plate 1, a dredging block 1, a sealing plate 2, a dredging block 2, a sealing plate 3, a dredging block 3, a sealing plate 4, a dredging block 4, a top block 1, a fixing pin 1, a top block 2, a driven shaft, a top block 3, a top block 4, a U-shaped seat, a motor, a plug rod, a fixing pin 2, and a well-shaped four-end telescopic device;

[0008] The motor is installed at the center position of the inner wall of the cover. One end of the driven shaft is fixedly connected to the output end of the motor. The square plate is fixedly inserted at the other end of the driven shaft. Four fixing pins 1 are fixed at the four corners of the square plate. One ends of the right-angle extension plate 1, the right-angle extension plate 2, the right-angle extension plate 3, and the right-angle extension plate 4 are sequentially rotatably installed on the four fixing pins 1. Four fixing pins 2 are sequentially fixed at the bottoms of the top block 1, the top block 2, the top block 3, and the top block 4. The other ends of the right-angle extension plate 1, the right-angle extension plate 2, the right-angle extension plate 3, and the right-angle extension plate 4 are sequentially rotatably installed on the four fixing pins 2. Four U-shaped seats are sequentially fixed at the bottoms of the top block 1, the top block 2, the top block 3, and the top block 4, and are arranged on the same horizontal line as the four fixing pins 2;

[0009] The well-shaped four-end telescopic device is installed between the square plate and the motor. The well-shaped four-end telescopic device is composed of two groups of telescopic rods vertically intersecting. Both groups of telescopic rods output at both ends, and sleeves are fixed on the output ends. Four plug rods are fixedly inserted into the sleeves and penetrate through the U-shaped seats.

[0010] As a preferred solution of the present invention, further, the sealing plate 1, the sealing plate 2, the sealing plate 3, and the sealing plate 4 are sequentially fixed at one ends of the top block 1, the top block 2, the top block 3, and the top block 4. A plurality of dredging blocks 1, dredging blocks 2, dredging blocks 3, and dredging blocks 4 are sequentially fixed on the sealing plate 1, the sealing plate 2, the sealing plate 3, and the sealing plate 4. The dredging blocks 1, dredging blocks 2, dredging blocks 3, and dredging blocks 4 are evenly distributed in an array. The number of the dredging blocks 1 and dredging blocks 3 corresponds to the number of horizontal through holes. The number of the dredging blocks 2 and dredging blocks 4 corresponds to the number of vertical through holes. The lengths of the dredging blocks 1 and dredging blocks 3 are longer than the hole depths of the horizontal through holes. The lengths of the dredging blocks 2 and dredging blocks 4 are longer than the hole depths of the vertical through holes.

[0011] As a preferred solution of the present invention, further, the sensor cleaning mechanism includes a brush rod 1, a telescopic air jet rod 1, a brush rod 2, a telescopic air jet rod 2, a brush rod 3, a telescopic air jet rod 3, a brush rod 4, and a telescopic air jet rod 4;

[0012] The brush rod 1 and the telescopic air jet rod 1 are in a group, the brush rod 2 and the telescopic air jet rod 2 are in a group, the brush rod 3 and the telescopic air jet rod 3 are in a group, and the brush rod 4 and the telescopic air jet rod 4 are in a group. The four groups are fixedly sleeved on the four plug rods, and each group is sleeved on the plug rod in a diagonal manner.

[0013] As a preferred solution of the present invention, further, the number of the gas sensors is four, which are respectively installed at four corners of the inner wall of the cover body;

[0014] Among them, the driving motor drives the output shaft to rotate counterclockwise, the output shaft drives the driven shaft to rotate counterclockwise, the driven shaft drives the square plate to rotate counterclockwise, the square plate drives the right-angle extension plate 1 to move upward, the right-angle extension plate 1 drives the top block 2 to move upward, the top block 2 drives the sealing plate 2 to move upward, the sealing plate 2 drives the dredging block 2 to move upward to dredge the vertical through-holes, the square plate drives the right-angle extension plate 3 to move downward, the right-angle extension plate 3 drives the top block 4 to move downward, the top block 4 drives the sealing plate 4 to move downward, the sealing plate 4 drives the dredging block 4 to move downward to dredge the vertical through-holes, the square plate drives the right-angle extension plate 2 to move left, the right-angle extension plate 2 drives the top block 3 to move left, the top block 3 drives the sealing plate 3 to move left, the sealing plate 3 drives the dredging block 3 to move left to dredge the horizontal through-holes, the square plate drives the right-angle extension plate 4 to move right, the right-angle extension plate 4 drives the top block 1 to move right, the top block 1 drives the sealing plate 1 to move right, and the sealing plate 1 drives the dredging block 1 to move right to dredge the horizontal through-holes;

[0015] The top blocks 1, 2, 3 and 4 move while driving the scraping and brushing rods and the retractable jet rods on the plug rods to move. The scraping and brushing rods are used to dust off gas particles on the gas sensor, and the retractable jet rods are used to blow off the dusted particles.

[0016] As a preferred embodiment of the present invention, further, the surface of the dredging block is provided with an oleophobic and hydrophobic coating to prevent gas particles from adhering and avoid affecting the perforation dredging effect due to particle accumulation.

[0017] As a preferred embodiment of the present invention, further, the transverse holes and vertical holes of the cover body are provided with a one-way structure to prevent water mist from entering the combustible gas, and the telescopic rods of the well-shaped four-end telescopic device are of a multi-stage nested structure, and each stage of the telescopic rods is provided with a precise positioning slot, and adjacent telescopic rods are nested and connected by means of the cooperation of the slots and the blocks.

[0018] As a preferred solution of the present invention, further, a temperature adaptive adjustment layer is provided inside the cover body to reduce the influence of temperature fluctuation on detection accuracy.

[0019] As a preferred embodiment of the present invention, further, the gas sensor is externally wrapped with multiple layers of electromagnetic shielding materials, and internal electrical components such as motors are electromagnetically shielded to block external electromagnetic interference.

[0020] The beneficial effects of the present invention are:

[0021] Through the regular operation of the four-sided dredging mechanism of the present invention, especially the dredging of the horizontal perforations and vertical perforations by the dredging blocks, the blockages caused by the accumulation of gas particles can be effectively removed, enabling the combustible gas to enter the interior of the device unobstructed through the perforations, maintaining a stable and efficient gas flow path. Compared with traditional detection devices, in an environment with a high particle concentration, the timeliness and reliability of detection of this device are significantly improved;

[0022] The adhesion of gas particles on the surface of the sensor will seriously affect its perception of combustible gas. The oil-repellent and water-repellent coating of this device effectively prevents the adhesion of particles on the surface of the dredging blocks and the sensor, avoiding the coverage or contamination of the sensitive area of the sensor;

[0023] Due to gas particle interference, traditional detection devices often require frequent maintenance, such as cleaning the sensor, dredging the air inlet hole, etc. With its effective anti-particle measures, this device greatly reduces the maintenance requirements, not only saving a large amount of labor and material costs, but also increasing the continuous working duration of the detection device, reducing the downtime caused by maintenance, and improving production efficiency;

[0024] Continuous gas particle erosion will damage the internal structure and components of the detection device, such as blocking the perforations and causing abnormal internal pressure of the device, and particle adhesion causing sensor corrosion, etc. By preventing gas particle interference, this device protects the key components of the device, thus significantly extending the service life of the entire combustible gas detection device and reducing the equipment replacement cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0026] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 is a schematic plan view of the internal structure of the present invention;

[0028] Figure 3 is a three-dimensional structure schematic diagram of the internal structure of the present invention;

[0029] Figure 4 is a schematic rear view structure diagram of the four-sided dredging mechanism of the present invention.

[0030] In the figure: 1. Cover body; 2. Horizontal perforation; 3. Vertical perforation; 4. Gas sensor;

[0031] 5. Four-sided dredging mechanism; 501. Square plate; 502. Right-angle extension plate 1; 503. Right-angle extension plate 2; 504. Right-angle extension plate 3; 505. Right-angle extension plate 4; 506. Sealing plate 1; 507. Dredging block 1; 508. Sealing plate 2; 509. Dredging block 2; 510. Sealing plate 3; 511. Dredging block 3; 512. Sealing plate 4; 513. Dredging block 4; 514. Top block 1; 515. Fixed pin 1; 516. Top block 2; 517. Driven shaft; 518. Top block 3; 519. Top block 4; 520. U-shaped seat; 521. Motor; 522. Insert rod; 523. Fixed pin 2; 524. Well-shaped four-end telescopic device

[0032] 6. Sensor cleaning mechanism; 601. Scrubbing rod 1; 602. Telescopic jet rod 1; 603. Scrubbing rod 2; 604. Telescopic jet rod 2; 605. Scrubbing rod 3; 606. Telescopic jet rod 3; 607. Scrubbing rod 4; 608. Telescopic jet rod 4 Detailed implementation mode

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention

[0034] Embodiment 1

[0035] As Figures 1 to 4 shown, this embodiment proposes an anti-interference flammable gas detection device, including a cover body 1, a horizontal through hole 2, a vertical through hole 3, a gas sensor 4, a four-sided dredging mechanism 5, and a sensor cleaning mechanism 6

[0036] The four-sided dredging mechanism 5 includes a square plate 501, a right-angle extension plate 1 502, a right-angle extension plate 2 503, a right-angle extension plate 3 504, a right-angle extension plate 4 505, a sealing plate 1 506, a dredging block 1 507, a sealing plate 2 508, a dredging block 2 509, a sealing plate 3 510, a dredging block 3 511, a sealing plate 4 512, a dredging block 4 513, a top block 1 514, a fixed pin 1 515, a top block 2 516, a driven shaft 517, a top block 3 518, a top block 4 519, a U-shaped seat 520, a motor 521, an insert rod 522, a fixed pin 2 523, and a well-shaped four-end telescopic device 524

[0037] The motor 521 is installed at the central position on the inner wall of the cover 1. One end of the driven shaft 517 is fixedly connected to the output end of the motor 521. The square plate 501 is fixedly inserted at the other end of the driven shaft 517. Four fixing pins one 515 are fixed at the four corners of the square plate 501. One ends of the right-angle extension plate one 502, the right-angle extension plate two 503, the right-angle extension plate three 504 and the right-angle extension plate four 505 are sequentially rotatably installed on the four fixing pins one 515. Four fixing pins two 523 are sequentially fixed at the bottoms of the top block one 514, the top block two 516, the top block three 518 and the top block four 519. The other ends of the right-angle extension plate one 502, the right-angle extension plate two 503, the right-angle extension plate three 504 and the right-angle extension plate four 505 are sequentially rotatably installed on the four fixing pins two 523. Four U-shaped seats 520 are sequentially fixed at the bottoms of the top block one 514, the top block two 516, the top block three 518 and the top block four 519, and are arranged on the same horizontal line as the four fixing pins two 523;

[0038] The well-shaped four-end telescopic device 524 is installed between the square plate 501 and the motor 521. The well-shaped four-end telescopic device 524 is composed of two groups of telescopic rods vertically intersecting, and both groups of telescopic rods output at both ends. Collars are fixed on the output ends. Four insertion rods 522 are all fixedly inserted into the collars and penetrate through the U-shaped seats 520.

[0039] The sealing plate one 506, the sealing plate two 508, the sealing plate three 510 and the sealing plate four 512 are sequentially fixed at one ends of the top block one 514, the top block two 516, the top block three 518 and the top block four 519. A plurality of guiding blocks one 507, guiding blocks two 509, guiding blocks three 511 and guiding blocks four 513 are sequentially fixed on the sealing plate one 506, the sealing plate two 508, the sealing plate three 510 and the sealing plate four 512. The guiding blocks one 507, guiding blocks two 509, guiding blocks three 511 and guiding blocks four 513 are all arranged in an array at equal intervals. The number of the guiding blocks one 507 and the guiding blocks three 511 corresponds to the number of the horizontal through holes 2, and the number of the guiding blocks two 509 and the guiding blocks four 513 corresponds to the number of the vertical through holes 3. The lengths of the guiding blocks one 507 and the guiding blocks three 511 are longer than the hole depths of the horizontal through holes 2, and the lengths of the guiding blocks two 509 and the guiding blocks four 513 are longer than the hole depths of the vertical through holes 3.

[0040] The sensor cleaning mechanism 6 includes a scraping rod one 601, a telescopic air jet rod one 602, a scraping rod two 603, a telescopic air jet rod two 604, a scraping rod three 605, a telescopic air jet rod three 606, a scraping rod four 607 and a telescopic air jet rod four 608;

[0041] The scraping brush rod 1 601 and the retractable jet rod 1 602 form a group, the scraping brush rod 2 603 and the retractable jet rod 2 604 form a group, the scraping brush rod 3 605 and the retractable jet rod 3 606 form a group, the scraping brush rod 4 607 and the retractable jet rod 4 608 form a group, and the four groups are fixedly mounted on the four insertion rods 522, and each group is diagonally mounted on the insertion rod 522.

[0042] There are four gas sensors 4, which are respectively installed at the four corners of the inner wall of the cover body 1;

[0043] Among them, the driving motor 521 drives the output shaft to rotate counterclockwise, the output shaft drives the driven shaft 517 to rotate counterclockwise, the driven shaft 517 drives the square plate 501 to rotate counterclockwise, the square plate 501 drives the right-angle extension plate 1 502 to move upward, the right-angle extension plate 1 502 drives the top block 2 516 to move upward, the top block 2 516 drives the sealing plate 2 508 to move upward, the sealing plate 2 508 drives the dredging block 2 509 to move upward to dredge the vertical through hole 3, the square plate 501 drives the right-angle extension plate 3 504 to move downward, the right-angle extension plate 3 504 drives the top block 4 519 to move downward, the top block 4 519 drives the sealing plate 4 550 to move upward, and the sealing plate 2 508 drives the dredging block 2 509 to move upward to dredge the vertical through hole 3. 12 moves downward, the sealing plate 4 512 drives the dredging block 4 513 to move downward to dredge the vertical through hole 3, the square plate 501 drives the right-angle extension plate 2 503 to move left, the right-angle extension plate 2 503 drives the top block 3 518 to move left, the top block 3 518 drives the sealing plate 3 510 to move left, the sealing plate 3 510 drives the dredging block 3 511 to move left to dredge the horizontal through hole 2, the square plate 501 drives the right-angle extension plate 4 505 to move right, the right-angle extension plate 4 505 drives the top block 1 514 to move right, the top block 1 514 drives the sealing plate 1 506 to move right, and the sealing plate 1 506 drives the dredging block 1 507 to move right to dredge the horizontal through hole 2;

[0044] The top block 1 514, the top block 2 516, the top block 3 518 and the top block 4 519 move while driving the scraping rod and the retractable jet rod on the insertion rod 522 to move. The scraping rod is used to dust off the gas particles on the gas sensor 4, and the retractable jet rod is used to blow off the dusted particles.

[0045] The surface of the dredging block is provided with an oleophobic and hydrophobic coating to prevent gas particles from adhering and to avoid the perforation and dredging effect being affected by particle accumulation.

[0046] The transverse hole 2 and the vertical hole 3 of the cover body 1 are provided with a one-way waterproof fog structure to prevent the intrusion of water fog into the combustible gas. The telescopic rod of the well-shaped four-end telescopic device 524 is a multi-stage nested structure. Each stage of the telescopic rod is provided with a precise positioning slot, and adjacent telescopic rods are nested and connected by means of the cooperation of the slot and the card block.

[0047] A temperature self-adapting regulating layer is provided inside the cover body 1 to reduce the influence of temperature fluctuation on the detection accuracy.

[0048] The gas sensor 4 is externally wrapped with multiple layers of electromagnetic shielding materials, and internal electrical components such as the motor 521 are all provided with electromagnetic shielding measures to block external electromagnetic interference.

[0049] In this embodiment, the cover 1 serves as the outer shell of the entire device and plays a role in protecting the internal components. Its horizontal through-hole 2 and vertical through-hole 3 are channels for combustible gas to enter. The waterproof and mist-proof one-way structure at the through-holes allows combustible gas to enter, while effectively preventing water mist from invading, avoiding damage to the internal circuit and sensors due to water mist, and ensuring the normal operation of the device in a humid environment. The temperature self-adaptive adjustment layer inside the cover 1 can reduce the influence of temperature fluctuations on the detection accuracy and create a relatively stable working environment for the gas sensor 4;

[0050] The horizontal through-hole 2 and the vertical through-hole 3 are key channels for combustible gas to enter the inside of the cover 1, providing necessary conditions for the gas sensor 4 to sense the concentration of combustible gas. Their smoothness directly affects the detection sensitivity of the device to combustible gas;

[0051] The number of gas sensors 4 is four, which are installed at the four corners of the inner wall of the cover 1 to detect the concentration of combustible gas inside the cover 1. The externally wrapped multiple layers of electromagnetic shielding materials can effectively block external electromagnetic interference, ensure the accuracy and stability of the sensor detection data, and avoid misjudgment caused by electromagnetic interference;

[0052] The square plate 501 is connected to the driven shaft 517 and rotates under the drive of the driven shaft 517, providing a power source for the movement of the right-angle extension plate. By its own rotation, it changes the position of the right-angle extension plate, and further realizes the driving of the top block, the sealing plate, and the guiding block;

[0053] One ends of the right-angle extension plate one 502, the right-angle extension plate two 503, the right-angle extension plate three 504, and the right-angle extension plate four 505 are rotatably installed on the fixing pins one 515 at the four corners of the square plate 501, and the other ends are connected to the fixing pins two 523 at the bottom of the top block. When the square plate 501 rotates, the right-angle extension plate rotates around the fixing pin one 515, driving the top block to move in different directions, so that the sealing plate and the guiding block can dredge the horizontal through-hole 2 and the vertical through-hole 3;

[0054] The sealing plate one 506, the sealing plate two 508, the sealing plate three 510, and the sealing plate four 512 are respectively fixed to one ends of the top block one 514, the top block two 516, the top block three 518, and the top block four 519, used to carry the guiding block, and under the drive of the top block, send the guiding block to the horizontal through-hole 2 or the vertical through-hole 3 for dredging operation;

[0055] The guiding blocks 1 (507), 2 (509), 3 (511), and 4 (513) are evenly distributed at equal intervals on the sealing plate. Their quantity corresponds to the quantity of the horizontal through-holes 2 or the vertical through-holes 3, and the length of each block is greater than the depth of the through-hole. By inserting into the through-hole, foreign matters such as dust and particles blocked in the through-hole are removed, ensuring the smoothness of the through-hole, enabling the combustible gas to enter the cover 1 smoothly. The oil-repellent and water-repellent coating on the surface prevents gas particles from adhering, avoiding the influence of particle accumulation on the dredging effect;

[0056] At the bottom of the top blocks 1 (514), 2 (516), 3 (518), and 4 (519), fixing pins 2 (523) are installed and connected to the right-angle extension plate. Driven by the right-angle extension plate, they move, and then drive the sealing plate and the guiding blocks to dredge the through-hole. At the same time, the U-shaped seat at its bottom cooperates with the insertion rod 522, driving the insertion rod 522 to move during the movement, providing power for the sensor cleaning mechanism 6;

[0057] Fixing pins 1 (515) are fixed at the four corners of the square plate 501, used to connect one end of the right-angle extension plate, enabling the right-angle extension plate to rotate around it, realizing the conversion of the rotation of the square plate 501 into the linear motion of the right-angle extension plate and the top block;

[0058] One end of the driven shaft 517 is fixedly connected to the output end of the motor 521, and the other end is fixedly inserted into the square plate 501, transmitting the rotation of the motor 521 to the square plate 501, driving the entire four-sided dredging mechanism 5 to work;

[0059] The U-shaped seat is fixed at the bottom of the top block, arranged on the same horizontal line as the fixing pin 2 (523). The insertion rod 522 passes through it. When the top block moves, the U-shaped seat drives the insertion rod 522 to move synchronously, providing guidance and power transmission for the movement of the sensor cleaning mechanism 6;

[0060] The motor 521 is installed at the central position of the inner wall of the cover 1, serving as the power source of the four-sided dredging mechanism 5. It drives the driven shaft 517 to rotate through the output shaft, and then drives the entire four-sided dredging mechanism 5 to operate, realizing the regular dredging of the through-hole;

[0061] The insertion rod 522 is fixedly inserted into the collar at the output end of the well-shaped four-end telescopic device 524 and passes through the U-shaped seat. When the top block moves, the insertion rod 522 moves synchronously driven by the U-shaped seat, driving the sensor cleaning mechanism 6 installed on it to clean the gas sensor 4;

[0062] The fixing pin 2 (523) is fixed at the bottom of the top block, used to connect the other end of the right-angle extension plate, ensuring that the right-angle extension plate can effectively drive the top block to move;

[0063] The well-shaped four-end telescopic device 524 is composed of two groups of telescopic rods that intersect vertically and output at both ends. It is installed between the square plate 501 and the motor 521. The telescopic rods are of a multi-stage nested structure, and each stage of the telescopic rod is provided with a precise positioning slot. The adjacent telescopic rods are nested and connected through the cooperation of the slot and the block. The collar at the output end fixedly inserts the insertion rod 522, which on the one hand plays a supporting and guiding role for the insertion rod 522, and on the other hand, by adjusting the telescopic length of the telescopic rod, the movement range and position of the four-sided dredging mechanism 5 and the sensor cleaning mechanism 6 can be finely adjusted to adapt to different working requirements;

[0064] The first scraping rod 601, the second scraping rod 603, the third scraping rod 605, and the fourth scraping rod 607 are sleeved on the insertion rod 522. When the insertion rod 522 moves, it approaches the surface of the gas sensor 4 to remove the gas particles attached to the gas sensor 4 and keep the sensor surface clean, ensuring the sensing sensitivity of the sensor to combustible gas;

[0065] The first telescopic jet rod 602, the second telescopic jet rod 604, the third telescopic jet rod 606, and the fourth telescopic jet rod 608 are grouped and cooperated with the scraping rods and are also sleeved on the insertion rod 522. After the scraping rods remove the particles, the telescopic jet rods eject gas to blow the removed particles away from the sensor surface to prevent the particles from adhering again, further improving the cleaning effect of the sensor and ensuring its normal operation.

[0066] More specifically, first, the gas sensor 4 using quantum sensing technology is accurately installed at the four corners of the inner wall of the housing 1 to ensure firm installation and the connection lines follow strict electromagnetic shielding wiring specifications to avoid signal interference;

[0067] Then install the intelligent four-sided dredging mechanism 5. Install multiple micro intelligent drive modules at the connection points of the right-angle extension plate and the top block to ensure the accurate installation position of the sensors of each module and be able to effectively sense the dredging state. When installing the well-shaped four-end telescopic device 524, carefully adjust the initial position of the shape memory alloy telescopic rod to make it coordinated with the movement of the whole mechanism;

[0068] Then install the adaptive sensor cleaning mechanism 6. Sleeve the scraping rods and telescopic jet rods with micro pressure sensors and gas component sensors on the insertion rod 522 in diagonal groups to ensure accurate installation positions and be able to comprehensively and effectively clean the gas sensor 4 when the insertion rod 522 moves;

[0069] Finally, install the nano temperature control fluid system, the intelligent waterproof and fog valve, and the electromagnetic shielding adaptive adjustment system, etc., to ensure that the sensors, controllers and other components of each system are firmly installed, the circuit connections are correct, and seamless communication and collaborative work can be achieved between the systems.

[0070] After the device starts, the micro intelligent drive modules in the distributed intelligent drive system drive the right-angle extension plate and the top block to move in coordination according to the preset program and sensor feedback. When the dredging block approaches the perforation, the drive module automatically adjusts the output torque and rotational speed according to the perforation position and blockage condition detected by the sensor, so that the dredging block accurately inserts into and dredges the perforation. During this process, the shape memory alloy telescopic rod of the well-shaped four-end telescopic device 524 automatically adjusts its length according to the temperature and current changes, dynamically optimizing the movement of the four-sided dredging mechanism 5;

[0071] At the same time, the adaptive sensor cleaning mechanism 6 starts to work. The micro pressure sensor on the scrubbing rod monitors the contact pressure with the surface of the gas sensor 4 in real time and automatically adjusts the scrubbing force to ensure the cleaning effect while protecting the sensor. After the gas composition sensor detects the composition of the particles attached to the sensor surface, the telescopic jet rod adjusts the jet pressure, temperature and gas composition according to the instruction to deeply clean the sensor;

[0072] The gas sensor 4 continuously detects the concentration of combustible gas in the housing 1 and transmits the signal to the subsequent processing circuit through an advanced signal processing system. Throughout the process, the nano temperature control fluid system automatically adjusts the temperature in the housing 1 according to the ambient temperature change, the intelligent waterproof fog valve adjusts the opening and closing degree according to the feedback of the humidity and air pressure sensors, and the electromagnetic shielding adaptive adjustment system monitors and responds to external electromagnetic interference in real time, comprehensively ensuring the stable and accurate operation of the device.

Claims

1. An anti-interference combustible gas detection device, characterized in that, It includes a cover body, a horizontal through-hole, a vertical through-hole, a gas sensor, a four-sided dredging mechanism, and a sensor cleaning mechanism; The four-sided dredging mechanism includes a square plate, a right-angle extension plate 1, a right-angle extension plate 2, a right-angle extension plate 3, a right-angle extension plate 4, a sealing plate 1, a dredging block 1, a sealing plate 2, a dredging block 2, a sealing plate 3, a dredging block 3, a sealing plate 4, a dredging block 4, a top block 1, a fixing pin 1, a top block 2, a driven shaft, a top block 3, a top block 4, a U-shaped seat, a motor, an insertion rod, a fixing pin 2, and a well-shaped four-end telescopic device; The motor is installed at the center position of the inner wall of the cover body. One end of the driven shaft is fixedly connected to the output end of the motor. The square plate is fixedly inserted at the other end of the driven shaft. Four fixing pins 1 are fixed at the four corners of the square plate. One ends of the right-angle extension plate 1, the right-angle extension plate 2, the right-angle extension plate 3, and the right-angle extension plate 4 are sequentially rotatably installed on the four fixing pins 1. Four fixing pins 2 are sequentially fixed at the bottoms of the top block 1, the top block 2, the top block 3, and the top block 4. The other ends of the right-angle extension plate 1, the right-angle extension plate 2, the right-angle extension plate 3, and the right-angle extension plate 4 are sequentially rotatably installed on the four fixing pins 2. Four U-shaped seats are sequentially fixed at the bottoms of the top block 1, the top block 2, the top block 3, and the top block 4, and are arranged on the same horizontal line as the four fixing pins 2; The well-shaped four-end telescopic device is installed between the square plate and the motor. The well-shaped four-end telescopic device is composed of two groups of telescopic rods vertically intersecting. Both groups of telescopic rods output at both ends, and sleeves are fixed on the output ends. Four insertion rods are fixedly inserted into the sleeves and penetrate through the U-shaped seats.

2. The anti-interference combustible gas detection device according to claim 1, characterized in that, The sealing plate 1, the sealing plate 2, the sealing plate 3, and the sealing plate 4 are sequentially fixed at one ends of the top block 1, the top block 2, the top block 3, and the top block 4. A plurality of dredging blocks 1, dredging blocks 2, dredging blocks 3, and dredging blocks 4 are sequentially fixed on the sealing plate 1, the sealing plate 2, the sealing plate 3, and the sealing plate 4. The dredging blocks 1, dredging blocks 2, dredging blocks 3, and dredging blocks 4 are all arranged in an array at equal intervals. The number of the dredging blocks 1 and the dredging blocks 3 corresponds to the number of the horizontal through-holes. The number of the dredging blocks 2 and the dredging blocks 4 corresponds to the number of the vertical through-holes. The lengths of the dredging blocks 1 and the dredging blocks 3 are longer than the hole depths of the horizontal through-holes. The lengths of the dredging blocks 2 and the dredging blocks 4 are longer than the hole depths of the vertical through-holes.

3. The anti-interference combustible gas detection device according to claim 2, characterized in that, The sensor cleaning mechanism includes a scraping rod 1, a telescopic jet rod 1, a scraping rod 2, a telescopic jet rod 2, a scraping rod 3, a telescopic jet rod 3, a scraping rod 4, and a telescopic jet rod 4; The scraping rod 1 and the telescopic jet rod 1 are in a group, the scraping rod 2 and the telescopic jet rod 2 are in a group, the scraping rod 3 and the telescopic jet rod 3 are in a group, and the scraping rod 4 and the telescopic jet rod 4 are in a group. The four groups are fixedly sleeved on the four insertion rods, and each group is sleeved on the insertion rod in a diagonal manner.

4. The anti-interference combustible gas detection device according to claim 3, characterized in that, The number of the gas sensors is four, which are respectively installed at the four corners of the inner wall of the cover body; Among them, the driving motor drives the output shaft to rotate counterclockwise, the output shaft drives the driven shaft to rotate counterclockwise, the driven shaft drives the square plate to rotate counterclockwise, the square plate drives the right-angle extension plate 1 to move upward, the right-angle extension plate 1 drives the top block 2 to move upward, the top block 2 drives the sealing plate 2 to move upward, the sealing plate 2 drives the dredging block 2 to move upward to dredge the vertical through-holes, the square plate drives the right-angle extension plate 3 to move downward, the right-angle extension plate 3 drives the top block 4 to move downward, the top block 4 drives the sealing plate 4 to move downward, the sealing plate 4 drives the dredging block 4 to move downward to dredge the vertical through-holes, the square plate drives the right-angle extension plate 2 to move left, the right-angle extension plate 2 drives the top block 3 to move left, the top block 3 drives the sealing plate 3 to move left, the sealing plate 3 drives the dredging block 3 to move left to dredge the horizontal through-holes, the square plate drives the right-angle extension plate 4 to move right, the right-angle extension plate 4 drives the top block 1 to move right, the top block 1 drives the sealing plate 1 to move right, and the sealing plate 1 drives the dredging block 1 to move right to dredge the horizontal through-holes; The top blocks 1, 2, 3 and 4 move while driving the scraping and brushing rods and the retractable jet rods on the plug rods to move. The scraping and brushing rods are used to dust off gas particles on the gas sensor, and the retractable jet rods are used to blow off the dusted particles.

5. The anti-interference combustible gas detection device according to claim 4, characterized in that, The surface of the dredging block is provided with an oleophobic and hydrophobic coating to prevent gas particles from adhering and avoid affecting the perforation dredging effect due to particle accumulation.

6. The anti-interference combustible gas detection device according to claim 5, characterized in that, The transverse holes and vertical holes of the cover body are provided with a one-way waterproof fog structure to prevent the intrusion of water fog into the combustible gas. The telescopic rods of the well-shaped four-end telescopic device are a multi-level nested structure. Each level of the telescopic rods is provided with a precise positioning slot, and adjacent telescopic rods are nested and connected by means of the cooperation of the slots and the blocks.

7. The anti-interference combustible gas detection device according to claim 6, characterized in that, A temperature self-adapting regulating layer is arranged inside the cover body to reduce the influence of temperature fluctuation on detection accuracy.

8. An anti-interference combustible gas detection device according to claim 7, characterized in that, The gas sensor is wrapped with multiple layers of electromagnetic shielding materials on the outside, and internal electrical components such as motors are shielded by electromagnetic shielding measures to block external electromagnetic interference.

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