Multifunctional gas detection alarm equipment

Abstract

The invention discloses multifunctional gas detection alarm equipment, and relates to the technical field of gas detection, the multifunctional gas detection alarm equipment comprises a gas detector, the upper end of the gas detector is fixedly connected with a connecting port, a pumping sampling pipe is clamped on the connecting port, one end of the pumping sampling pipe far away from the connecting port is fixedly connected with a sampling port, and the sampling port is internally and fixedly connected with a filter plate; the device further comprises a gas continuity detection mechanism and a gas interruption troubleshooting mechanism, the gas continuity detection mechanism comprises an eccentric plate, a driving plate and a rotating shaft which are symmetrically arranged, a worker can be helped to better know the state of a detection process, and once it is found that gas flow is not smooth, measures can be taken immediately for adjustment, so that the work efficiency is improved. Therefore, the whole detection process is optimized, the working efficiency is improved, the continuity of the gas sample in the detection process is ensured, the accuracy of the detection result can be improved, the alarm function of the gas detector is ensured to send out an alarm signal in time when the gas concentration reaches a dangerous level, and the reliability of the alarm function is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of gas detection, in particular to a multifunctional gas detection alarm device. Background Art

[0002] Gas detection alarm equipment is an instrument tool for detecting gas leakage concentration. It can convert the physical or chemical non-electrical signals collected by the gas sensor into electrical signals, and then process these electrical signals through external circuits, and control the corresponding modules according to the processed signals to realize gas detection; In the process of gas detection and alarm equipment detecting gas, the gas sample is usually sucked into the interior for detection. In the process of sucking the gas sample into the gas detection and alarm equipment, affected by some factors (for example, insufficient suction or failure of the sampling pump will cause poor gas sample suction, or the gas detector is usually equipped with a filter to filter impurities and protect the sensor. The filter will be blocked after long-term use, affecting the normal inhalation of the gas), the gas sample will be intermittent during the detection process, and the staff will not be able to understand it in the first time. Not only will the gas sample received by the gas detection and alarm equipment be incomplete or insufficiently representative, resulting in the detection result deviating from the actual gas concentration, misleading the staff's judgment of the gas concentration, and thus affecting the safety production decision, but also if the gas sample is not sucked smoothly, the alarm function will be delayed or completely ineffective, resulting in the gas detection and alarm equipment being unable to send an alarm signal in time when the gas concentration reaches a dangerous level, thereby increasing the risk of accidents, and long-term poor gas sample suction will cause wear and damage to the internal components of the equipment. For example, the sampling pump is accelerated due to continuous operation under high load, and the filter loses its filtering effect due to long-term clogging, which increases the maintenance cost of the gas detection and alarm equipment and shortens the overall service life of the gas detection and alarm equipment.

[0003] Therefore, the present invention proposes a multifunctional gas detection alarm device to solve the above problems. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a multifunctional gas detection alarm device, which can effectively solve the problems in the prior art.

[0005] (II) Technical solution To achieve the above object, the object of the present invention can be achieved by the following technical solutions: A multifunctional gas detection alarm device includes a gas detector, a connecting port is fixedly connected to the upper end of the gas detector, a pump suction sampling tube is clamped on the connecting port, the end of the pump suction sampling tube away from the connecting port is fixedly connected to the sampling port, a filter plate is fixedly connected to the inside of the sampling port, and also includes a gas continuity detection mechanism and a gas intermittent troubleshooting mechanism. The gas continuity detection mechanism includes a symmetrically arranged eccentric plate, a drive plate and a rotating shaft. The gas continuity detection mechanism is used to detect the state of the gas sample when it enters the gas detector, and the gas intermittent troubleshooting mechanism is used to help staff analyze the cause of the fault.

[0006] As a further solution of the present invention: the drive plates are all located inside the connecting port, the opposite sides of the two drive plates are fixedly connected to the rotating shaft, the rotating shafts are rotatably connected to the connecting port, and the eccentric plate is fixedly connected to one end of the rotating shaft passing through the connecting port.

[0007] As a further solution of the present invention: the connection port is fixedly connected to a support block on one side close to the eccentric plate, linkage plates are symmetrically arranged below the support blocks, and the linkage plates are fixedly connected to a side of the eccentric plate close to the rotating shaft.

[0008] As a further solution of the present invention: a fixing plate is arranged under the support block, the fixing plates are fixedly connected to the side walls of the connecting port, buttons are symmetrically fixedly connected to the upper surfaces of the fixing plates, display lights are symmetrically fixedly connected to the side of the fixing plates away from the connecting port, and the buttons are electrically connected to the display lights.

[0009] As a further solution of the present invention: the gas continuity detection mechanism also includes symmetrically arranged dustproof plates, which are all slidably connected to the side wall of the connecting port away from the eccentric plate, and the upper surfaces of the dustproof plates are provided with leakage holes. The dustproof plates are rotatably connected to the side close to the eccentric plate with connecting rods, and the connecting rods on the same side of the eccentric plate away from the dustproof plate are rotatably connected with connecting blocks, and the lower end surfaces of the connecting blocks are symmetrically fixedly connected with lifting columns, and the lifting columns are slidably connected to the support blocks.

[0010] As a further solution of the present invention: the outer surfaces of the lifting columns located below the support blocks are fixedly connected to the limit plates, and the limit plates are initially located on the upper end surface of the linkage plate.

[0011] As a further solution of the present invention: the gas intermittent fault troubleshooting mechanism includes symmetrically arranged gas storage boxes, the gas storage boxes are all located above the filter plate, the gas storage boxes have air inlet holes on the side walls, the gas storage boxes have air outlet holes on the lower end surface, and the air inlet holes and the air outlet holes are both provided with one-way valves.

[0012] As a further solution of the present invention: the inside of the gas storage box is vertically slidably connected with a compression plate, the upper end surface of the compression plate is fixedly connected with a piston rod, the piston rod passes through and is slidably connected to the upper end surface of the gas storage box, and the upper end of the piston rod is fixedly connected with a lifting plate.

[0013] As a further solution of the present invention: sliding columns are fixedly connected to the opposite sides of the two gas storage boxes, and the sliding columns are slidably connected to the sampling port. The ends of the sliding columns away from the gas storage boxes are fixedly connected to pressing plates, and springs are fixedly connected between the pressing plates and the outer wall of the gas storage boxes, and the springs are sleeved on the outer surfaces of the sliding columns.

[0014] As a further solution of the present invention: side panels are provided on both sides of the lifting plate, the side panels are fixedly connected to the sampling port, the side panels close to the lifting plate are symmetrically provided with inclined grooves, the inclined grooves are slidably connected with connecting columns, and the connecting columns are fixedly connected to the side walls of the lifting plate at one end away from the inclined grooves.

[0015] (III) Beneficial effects Compared with the prior art, the present invention provides a multifunctional gas detection alarm device, which has the following beneficial effects: 1. Through the set gas continuity detection mechanism, when the gas sample enters the gas detector through the connection port, the continuity of the gas sample in the connection port during the entry process can be known by observing the swing amplitude of the eccentric plate. This can not only help the staff to better understand the state of the detection process, but also take immediate measures to adjust once the gas flow is found to be poor, thereby optimizing the entire detection process and improving work efficiency. Moreover, by ensuring the continuity of the gas sample during the detection process, the accuracy of the detection results can be improved, and the alarm function of the gas detector can be ensured to send out an alarm signal in time when the gas concentration reaches a dangerous level, thereby enhancing the reliability of the alarm function. In addition, the staff can promptly discover and deal with the problem of poor gas flow, and can immediately conduct maintenance and troubleshooting, thereby reducing the failure rate of the gas detector and the pump suction sampling tube and reducing maintenance costs. Among them, through the setting of linkage plates, buttons and display lights, the display lights can flash synchronously when the eccentric plate shakes, which not only allows the staff to monitor the continuity of gas flow more intuitively, simplifies the operation process and reduces the difficulty of operation, but also the flashing of the display light can be used as an early warning signal of emergency, prompting the staff to take immediate action, which helps to shorten the time from discovering the problem to taking emergency measures, thereby improving the overall emergency response speed.

[0016] 2. By means of the dustproof plate, leak hole, connecting rod, connecting block and lifting column, the dustproof plate can be automatically opened when the gas enters the gas detector. This not only facilitates the gas to smoothly pass through the connecting port into the gas detector for detection, thereby improving the accuracy of the detection results of the gas detector, but also automatically closes the upper end of the connecting port after the gas detection is completed, thereby filtering and blocking dust and impurities at the connecting port, keeping the internal components of the gas detector clean, extending its service life, and reducing measurement errors caused by dust accumulation.

[0017] 3. Through the set gas intermittent troubleshooting mechanism, during the cleaning process of the filter plate inside the sampling port, air can be blown from the end of the filter plate close to the pump suction sampling tube toward the sampling port, which not only helps to blow away the dust and particles attached to the filter holes on the filter plate, thereby cleaning the filter plate more thoroughly, so that the gas sample can smoothly pass through the pump suction sampling tube into the gas detector, but also makes it easy for the staff to check whether the intermittent gas sample entering the gas detector is caused by the blockage of the filter plate, thereby improving the accuracy of troubleshooting.

[0018] 4. The provided pressing plate, sliding column and spring can push the air storage box to move horizontally back and forth on the end surface of the filter plate during the cleaning process of the air storage box. This can not only ensure that the air storage box evenly covers the entire surface of the filter plate, thereby more comprehensively sweeping away the dust and particles attached to the filter plate, avoiding the cleaning dead corners existing in traditional fixed-point cleaning, further improving the cleaning efficiency and effect, but also enable the air storage box to adapt to filter plates of different sizes and shapes, ensuring that the air storage box can achieve stable horizontal reciprocating movement on filter plates of different sizes, thereby improving the versatility and adaptability of the air storage box; Among them, through the set side plates, inclined grooves, connecting columns, lifting plates and piston rods, the compression plate can be automatically driven to reciprocate up and down inside the gas storage box during the horizontal reciprocating movement of the gas storage box, so as to realize the process of sucking gas into the gas storage box and automatically discharging it to clean the filter plate, thereby realizing the automation of the cleaning process. There is no need for manual operation and the use of additional driving sources. The jet cleaning process of the gas storage box is automatically completed by the mechanical structure, which reduces the difficulty and cost of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure of the middle A area; Figure 3This is a schematic diagram of the internal structure of the connection port of the present invention; Figure 4 This is a schematic diagram of the connection between the eccentric plate and the connecting block of the structure of the present invention; Figure 5 This is a schematic diagram of the sampling port connection structure of the present invention; Figure 6 This is a schematic diagram of the interior of the sampling port of the structure of the present invention; Figure 7 This is a schematic diagram of the connection between the lifting plate and the side plate of the structure of the present invention; Figure 8 It is a schematic diagram of the internal structure of the gas storage box of the present invention.

[0021] In the figure: 1. Gas detector; 2. Pump sampling tube; 3. Sampling port; 4. Connection port; 501, eccentric plate; 502, fixing plate; 503, button; 504, display light; 505, dustproof plate; 506, connecting rod; 507, connecting block; 508, lifting column; 509, supporting block; 510, linkage plate; 511, leakage hole; 512, driving plate; 513, rotating shaft; 514, limiting plate; 601, pressing plate; 602, sliding column; 603, spring; 604, air storage box; 605, side plate; 606, lifting plate; 607, piston rod; 608, inclined groove; 609, connecting column; 610, compression plate; 611, air inlet; 612, air outlet; 7. Filter plate. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0023] A multifunctional gas detection alarm device of this embodiment, such as Figure 1 - Figure 8 As shown, it includes a gas detector 1, the upper end of the gas detector 1 is fixedly connected with a connecting port 4, a pump suction sampling tube 2 is clamped on the connecting port 4, the end of the pump suction sampling tube 2 away from the connecting port 4 is fixedly connected with a sampling port 3, the sampling port 3 is fixedly connected with a filter plate 7, and also includes a gas continuity detection mechanism and a gas intermittent troubleshooting mechanism. The gas continuity detection mechanism includes a symmetrically arranged eccentric plate 501, a drive plate 512 and a rotating shaft 513. The gas continuity detection mechanism is used to detect the state of the gas sample when it enters the gas detector 1.

[0024] In this embodiment, Figure 3As shown, the drive plates 512 are all located inside the connecting port 4, and the opposite sides of the two drive plates 512 are fixedly connected to the rotating shaft 513, and the rotating shaft 513 is rotatably connected to the connecting port 4. The eccentric plate 501 is fixedly connected to one end of the rotating shaft 513 that passes through the connecting port 4. When the drive plate 512 is subjected to thrust, the eccentric plate 501 can be driven to rotate in the opposite direction through the arranged rotating shaft 513.

[0025] In this embodiment, Figure 3 As shown, the connection port 4 is fixedly connected to a support block 509 on one side close to the eccentric plate 501, and linkage plates 510 are symmetrically arranged below the support block 509. The linkage plates 510 are fixedly connected to a side of the eccentric plate 501 close to the rotating shaft 513. When the eccentric plate 501 moves, it can drive the linkage plates 510 to rotate synchronously around the rotating shaft 513.

[0026] In this embodiment, Figure 2 As shown, a fixing plate 502 is provided under the support block 509, and the fixing plate 502 is fixedly connected to the side wall of the connecting port 4, and buttons 503 are symmetrically fixedly connected to the upper end surface of the fixing plate 502, and display lights 504 are symmetrically fixedly connected to the side of the fixing plate 502 away from the connecting port 4, and the buttons 503 are electrically connected to the display lights 504. When the buttons 503 are pressed, the display lights 504 can be turned on for operation through the electrical connection between the buttons 503 and the display lights 504.

[0027] In this embodiment, Figure 3 As shown, the gas continuity detection mechanism also includes symmetrically arranged dustproof plates 505, which are all slidably connected to the side wall of the connecting port 4 away from the eccentric plate 501, and the upper end faces of the dustproof plates 505 are provided with leakage holes 511. The dustproof plates 505 are rotatably connected to the side of the eccentric plate 501, and the connecting rods 506 are rotatably connected, and the connecting rods 506 on the same side of the eccentric plate 501 away from the dustproof plates 505 are rotatably connected to the ends, and the lower end faces of the connecting blocks 507 are symmetrically fixedly connected with lifting columns 508, and the lifting columns 508 are slidably connected to the support blocks 509. When the lifting columns 508 are lifted and lowered on the support blocks 509, the dustproof plates 505 can be pulled to move synchronously horizontally on the connecting port 4 through the arranged connecting blocks 507 and the connecting rods 506.

[0028] In this embodiment, Figure 2 and Figure 4 As shown, the outer surface of the lifting column 508 is located below the support block 509 and is fixedly connected to a limiting plate 514. The limiting plate 514 is initially located on the upper end surface of the linkage plate 510. The setting of the limiting plate 514 can limit the upward movement position of the linkage plate 510, and at the same time, the linkage plate 510 can drive the lifting column 508 to move upward through the limiting plate 514.

[0029] In the prior art, affected by some factors, gas samples may be intermittent during the detection process, and the staff cannot understand it in the first time. Not only will the gas samples received by the gas detection alarm device be incomplete or insufficiently representative, causing the detection results to deviate from the actual gas concentration, misleading the staff's judgment of the gas concentration, and thus affecting safe production decisions, but also if the gas sample is not sucked in smoothly, the alarm function will be delayed or completely fail, resulting in the gas detection alarm device being unable to send out an alarm signal in time when the gas concentration reaches a dangerous level, thereby increasing the risk of accidents. In addition, long-term poor gas sample suction will cause wear and damage to the internal components of the device, increase the maintenance cost of the gas detection alarm device, and shorten the overall service life of the gas detection alarm device. Compared with the prior art, When the gas sample enters the gas detector 1 through the connection port 4, the continuity of the gas sample in the connection port 4 during the entry process can be known by observing the swing amplitude of the eccentric plate 501. This can not only help the staff to better understand the state of the detection process, but also take immediate measures to adjust once the gas flow is found to be poor, thereby optimizing the entire detection process and improving work efficiency. Moreover, by ensuring the continuity of the gas sample during the detection process, the accuracy of the detection result can be improved, and the alarm function of the gas detector 1 can be ensured to send out an alarm signal in time when the gas concentration reaches a dangerous level, thereby enhancing the reliability of the alarm function. In addition, the staff can promptly discover and deal with the problem of poor gas flow, and can immediately conduct maintenance and troubleshooting, thereby reducing the failure rate of the gas detector 1 and the pump suction sampling tube 2 and reducing maintenance costs. Among them, by setting the linkage plate 510, button 503 and display light 504, when the eccentric plate 501 shakes, the display light 504 can flash synchronously, which not only allows the staff to monitor the continuity of the gas flow more intuitively, simplifies the operation process and reduces the difficulty of operation, but also the flashing of the display light 504 can be used as an early warning signal of an emergency, prompting the staff to take immediate action, which helps to shorten the time from discovering the problem to taking emergency measures, thereby improving the overall emergency response speed.

[0030] In other aspects, this embodiment also provides a gas intermittent troubleshooting mechanism for helping staff analyze the cause of the fault, such as Figure 5 - Figure 8 As shown, the gas intermittent fault troubleshooting mechanism includes symmetrically arranged gas storage boxes 604, which are all located above the filter plate 7. An air inlet 611 is opened on the side wall of the gas storage box 604, and an air outlet 612 is opened on the lower end surface of the gas storage box 604. Both the air inlet 611 and the air outlet 612 are provided with a one-way valve.

[0031] In this embodiment, Figure 8As shown, the interior of the air storage box 604 is vertically slidably connected with a compression plate 610, the upper end surface of the compression plate 610 is fixedly connected with a piston rod 607, the piston rod 607 penetrates and is slidably connected to the upper end surface of the air storage box 604, and the upper end of the piston rod 607 is fixedly connected with a lifting plate 606. When the lifting plate 606 drives the compression plate 610 to reciprocate up and down in the air storage box 604 through the piston rod 607, the air in the air storage box 604 can be promoted to circulate.

[0032] In this embodiment, Figure 6 As shown, the two gas storage boxes 604 are fixedly connected with sliding columns 602 on the opposite sides, and the sliding columns 602 are all slidably connected to the sampling port 3. The sliding columns 602 are fixedly connected with a pressing plate 601 on the end away from the gas storage box 604. A spring 603 is fixedly connected between the pressing plate 601 and the outer wall of the gas storage box 604. The spring 603 is sleeved on the outer surface of the sliding column 602. When the staff pushes the pressing plate 601 to drive the sliding column 602 to slide into the sampling port 3, the gas storage box 604 can be pushed to move synchronously inside the sampling port 3 and squeeze the spring 603. When the staff releases the pressing plate 601, the rebound force of the spring 603 can push the pressing plate away from the sampling port 3, drive the sliding column 602 to slide out from the inside of the sampling port 3, and pull the gas storage box 604 to move in the opposite direction inside the sampling port 3. This process is repeated to achieve the reciprocating movement of the gas storage box 604 in the sampling port 3.

[0033] In this embodiment, Figure 7 As shown, side plates 605 are provided on both sides of the lifting plate 606, and the side plates 605 are fixedly connected to the sampling port 3. The side plates 605 close to the lifting plate 606 are symmetrically provided with inclined grooves 608, and connecting columns 609 are slidably connected in the inclined grooves 608. The ends of the connecting columns 609 away from the inclined grooves 608 are fixedly connected to the side walls of the lifting plate 606. During the horizontal movement of the lifting plate 606, it is affected by the connecting columns 609 and the inclined grooves 608 and will synchronously perform up and down reciprocating motions.

[0034] In the prior art, in the field of gas detection, the filter inside the gas sample sampling is responsible for filtering out large particle pollutants in the air to ensure that the gas sample entering the gas detection equipment is pure and meets the detection requirements. However, the existing methods of cleaning the filter mostly use manual wiping or water washing. These methods are not only inefficient, but also often cannot thoroughly clean the inside of the filter holes on the filter, resulting in dust and particulate matter residues. These residues will block the filter holes, affecting the smooth passage of the gas sample, and even causing deviations in the detection results of the gas detector 1. In addition, when the gas sample is intermittent when entering the gas detection equipment, the troubleshooting process of the prior art requires staff to check the sample one by one. Tube and pump suction device have multiple parts to determine the problem, which is a time-consuming and laborious process with a high misdiagnosis rate. Compared with the prior art, during the cleaning process of the filter plate 7 inside the sampling port 3, air can be blown from the end of the filter plate 7 close to the pump suction sampling tube 2 toward the sampling port 3, which not only helps to blow away the dust and particulate matter attached to the filter holes on the filter plate 7, thereby more thoroughly cleaning the filter plate 7, so that the gas sample can smoothly pass through the pump suction sampling tube 2 into the gas detector 1, but also makes it easy for the staff to check whether the intermittent gas sample entering the gas detector 1 is caused by the blockage of the filter plate 7, thereby improving the accuracy of troubleshooting.

[0035] The working process and principle involved in the overall content of the above embodiment are as follows: When the staff needs to detect the gas, they first clamp the end of the pump suction sampling tube 2 away from the sampling port 3 to the connecting port 4 installed on the upper end face of the gas detector 1, and then connect the sampling port 3 to the interface that can extract the gas sample. After the sampling port 3 is connected, the staff can open the pump suction sampling tube 2, inhale the gas sample from the sampling port 3, and enter the connecting port 4 through the pump suction sampling tube 2. At this time, as the gas sample enters the connecting port 4, the gas sample will pass through the leakage hole 511 opened on the dustproof plate 505, pass through the dustproof plate 505, and apply a downward thrust to the driving plate 512 under the dustproof plate 505, pushing the rotating shaft 513 connected to the driving plate 512 to rotate on the connecting port 4, driving the eccentric plate 501 connected to the rotating shaft 513 at one end of the connecting port 4 to rotate. When the gas sample is intermittent during the entry process, the thrust applied by the gas sample to the driving plate 512 will also be intermittent. At this time , affected by the fact that one end of the eccentric plate 501 is heavier than the other end, the rotating shaft 513 will be driven to rotate in the opposite direction on the connecting port 4, and so on. In the process of intermittent gas sample, the eccentric plate 501 will reciprocate and shake. By observing the shaking amplitude of the eccentric plate 501, the continuity of the gas sample inside the connecting port 4 during the entry process can be known, which can not only help the staff to better understand the state of the detection process, but also take immediate measures to adjust once the gas flow is found to be poor, thereby optimizing the entire detection process and improving work efficiency. Moreover, by ensuring the continuity of the gas sample during the detection process, the accuracy of the detection result can be improved, ensuring that the alarm function of the gas detector 1 can send out an alarm signal in time when the gas concentration reaches a dangerous level, thereby enhancing the reliability of the alarm function, and the staff can promptly discover and deal with the problem of poor gas flow, and can immediately conduct maintenance and troubleshooting, thereby reducing the failure rate of the gas detector 1 and the pump suction sampling tube 2 and reducing maintenance costs; When the gas sample pushes the eccentric plate 501 to rotate through the driving plate 512 and the rotating shaft 513, the linkage plate 510 connected to the side wall of the eccentric plate 501 will move downward synchronously until it moves to the top of the button 503, and the button 503 is pressed. The button 503 and the display light 504 are electrically connected, and the display light 504 is turned on to work. When the gas sample is intermittent and causes the eccentric plate 501 to reciprocate, the eccentric plate 501 will first drive the linkage plate 510 to reciprocate, first press the button 503 to turn on the display light 504, and then move away from the button 503 to turn off the display light 504, so that the display light 504 can form a flashing state, which not only facilitates the staff to more intuitively monitor the continuity of the gas flow, simplifies the operation process, and reduces the difficulty of operation, but also the flashing of the display light 504 can be used as an early warning signal of an emergency, prompting the staff to take immediate action, which helps to shorten the time from discovering the problem to taking emergency measures, thereby improving the overall emergency response speed; When the linkage plate 510 rotates downward to press the button 503, it will simultaneously separate from the limit plate 514 connected to the outer surface of the lifting column 508. At this time, the lifting column 508 will automatically slide downward on the support block 509 due to the influence of the gravity of the connecting block 507 and the lifting column 508, pulling the connecting block 507 to move vertically downward. As the connecting block 507 descends, since the connecting block 507 and the dustproof plate 505 are rotatably connected with the connecting rod 506, and the dustproof plate 505 is slidably connected to the connecting port 4, the connecting block 507 will drive the upper end of the connecting rod 506 to move downward, changing the inclination state of the connecting rod 506, so that the connecting rod 506 pushes the dustproof plate 505 to slide out of the connecting port 4, thereby facilitating the gas to smoothly pass through the connecting port 4 into the gas detector 1 for detection, thereby improving the accuracy of the detection result of the gas detector 1. When the gas sample enters the gas detector 1 intermittently, the staff needs to immediately stop the detection of the gas sample, then remove the sampling port 3 from the interface for extracting the gas sample, and then press the pressing plates 601 on both sides of the outer surface of the sampling port 3 to push the slide post 602 to slide into the sampling port 3, and squeeze the spring 603 connected to the pressing plate 601 and the outer surface of the sampling port 3. In the process of the slide post 602 sliding into the sampling port 3, it can push the gas storage box 604 to move synchronously horizontally inside the sampling port 3, and fit the filter plate 7 above to enter. The air storage box 604 can then blow air to clean the filter plate 7, which can not only ensure that the air storage box 604 evenly covers the entire surface of the filter plate 7, thereby more comprehensively sweeping away the dust and particles attached to the filter plate 7, avoiding the cleaning dead corners existing in traditional fixed-point cleaning, further improving the cleaning efficiency and effect, but also making the air storage box 604 adaptable to filter plates 7 of different sizes and shapes, ensuring that the air storage box 604 can achieve stable horizontal reciprocating movement on filter plates 7 of different sizes, thereby improving the versatility and adaptability of the air storage box 604; During the horizontal movement of the gas storage box 604, the lifting plate 606 arranged above the gas storage box 604 will drive the connecting columns 609 connected on both sides to slide along the inclined grooves 608 opened on the side walls of the side plates 605. Influenced by the shape of the inclined grooves 608, the connecting columns 609 and the lifting plate 606 will move up and down synchronously during the horizontal movement. During the descent of the lifting plate 606, the piston rod 607 will be pushed to slide into the gas storage box 604, driving the compression plate 610 to slide downward in the gas storage box 604. At this time, the air in the gas storage box 604 is pushed by the compression plate 610 and will be ejected from the air outlet 612 to clean the filter plate 7. On the contrary, when the lifting plate 60 During the rising process of 6, the piston rod 607 can pull the compression plate 610 to rise synchronously. At this time, the external air of the gas storage box 604 will be sucked into the gas storage box 604 from the air inlet hole 611 for storage, so that the gas storage box 604 can clean the filter plate 7 later. This not only realizes the automation of the cleaning process, but also eliminates the need for manual operation and the use of an additional driving source. The jet cleaning process of the gas storage box 604 is automatically completed by the mechanical structure, which reduces the difficulty and cost of operation, and helps to blow away the dust and particles attached to the filter holes on the filter plate 7, thereby cleaning the filter plate 7 more thoroughly, so that the gas sample can smoothly enter the gas detector 1 through the pump suction sampling tube 2; After the staff has finished cleaning the filter plate 7, they can continue to suck the gas sample into the gas detector 1 through the sampling port 3 and the pump suction sampling tube 2 for detection. If the gas sample still appears intermittent, it means that the reason why the gas sample appears intermittent when entering the gas detector 1 is not caused by the blockage of the filter plate 7. Therefore, the accuracy of troubleshooting can be further improved, so that the staff can check the pump suction sampling tube 2 in time. After the gas detector 1 completes the detection of the gas sample, the staff can close the pump suction sampling tube 2 and stop the suction of the gas sample. At this time, due to the influence that one end of the eccentric plate 501 is heavier than the other end, the rotating shaft 513 will be automatically driven to rotate on the connecting port 4, and at the same time, the linkage plate 510 connected to the side wall of the eccentric plate 501 will be driven to move upward. As the linkage plate 510 moves, the linkage plate 510 will contact the limit plate 514 connected to the outer surface of the lifting column 508, and push the limit plate 514 to drive the lifting column 508 to slide upward on the support block 509 synchronously. During the rising process of the lifting column 508, the dustproof plate 505 can be pulled to automatically slide into the connecting port 4 through the arranged connecting rod 506 and connecting block 507, and the upper end of the connecting port 4 is automatically closed, so as to filter and block dust and impurities on the connecting port 4, keep the internal components of the gas detector 1 clean, extend its service life, and reduce the measurement error caused by dust accumulation.

[0036] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multifunctional gas detection alarm device, comprising a gas detector (1), wherein the upper end of the gas detector (1) is fixedly connected to a connection port (4), a pump suction sampling tube (2) is clamped on the connection port (4), the end of the pump suction sampling tube (2) away from the connection port (4) is fixedly connected to a sampling port (3), and a filter plate (7) is fixedly connected inside the sampling port (3), characterized in that: It also includes a gas continuity detection mechanism and a gas intermittent troubleshooting mechanism; The gas continuity detection mechanism comprises an eccentric plate (501), a drive plate (512) and a rotating shaft (513) which are symmetrically arranged, and the gas continuity detection mechanism is used to detect the state of a gas sample when it enters the interior of the gas detector (1); The gas intermittent fault elimination mechanism is used to help the staff analyze the cause of the fault.

2. A multifunctional gas detection alarm device according to claim 1, characterized in that: The drive plates (512) are both located inside the connection port (4); the opposite sides of the two drive plates (512) are both fixedly connected to the rotating shaft (513); the rotating shaft (513) is both rotatably connected to the connection port (4); and the eccentric plate (501) is fixedly connected to one end of the rotating shaft (513) that passes through the connection port (4).

3. A multifunctional gas detection alarm device according to claim 2, characterized in that: A support block (509) is fixedly connected to one side of the connection port (4) close to the eccentric plate (501), and linkage plates (510) are symmetrically arranged below the support blocks (509). The linkage plates (510) are fixedly connected to one side of the eccentric plate (501) close to the rotating shaft (513).

4. A multifunctional gas detection alarm device according to claim 3, characterized in that: A fixing plate (502) is provided below the support block (509); the fixing plate (502) is fixedly connected to the side wall of the connection port (4); buttons (503) are symmetrically fixedly connected to the upper end surface of the fixing plate (502); display lights (504) are symmetrically fixedly connected to the side of the fixing plate (502) away from the connection port (4); and the buttons (503) are electrically connected to the display lights (504).

5. A multifunctional gas detection alarm device according to claim 4, characterized in that: The gas continuity detection mechanism further comprises symmetrically arranged dustproof plates (505), each of the dustproof plates (505) being slidably connected to a side wall of the connection port (4) on a side away from the eccentric plate (501), each of the upper end surfaces of the dustproof plates (505) being provided with a leakage hole (511), each of the dustproof plates (505) being rotatably connected to a connecting rod (506) on a side close to the eccentric plate (501), each of the connecting rods (506) on the same side close to the eccentric plate (501) and on a side away from the dustproof plate (505) being rotatably connected to a connecting block (507), each of the lower end surfaces of the connecting blocks (507) being symmetrically fixedly connected to lifting columns (508), each of the lifting columns (508) being slidably connected to a supporting block (509).

6. A multifunctional gas detection alarm device according to claim 5, characterized in that: The outer surface of the lifting column (508) is located below the support block (509) and is fixedly connected to a limit plate (514). In an initial state, the limit plate (514) is located on the upper end surface of the linkage plate (510).

7. A multifunctional gas detection alarm device according to claim 1, characterized in that: The gas intermittent fault elimination mechanism comprises symmetrically arranged gas storage boxes (604), wherein the gas storage boxes (604) are both located above the filter plate (7), an air inlet hole (611) is provided on a side wall of the gas storage box (604), and an air outlet hole (612) is provided on a lower end surface of the gas storage box (604), and both the air inlet hole (611) and the air outlet hole (612) are provided with a one-way valve.

8. A multifunctional gas detection alarm device according to claim 7, characterized in that: The gas storage box (604) is vertically slidably connected to a compression plate (610) inside, the upper end surface of the compression plate (610) is fixedly connected to a piston rod (607), the piston rod (607) penetrates and is slidably connected to the upper end surface of the gas storage box (604), and the upper end of the piston rod (607) is fixedly connected to a lifting plate (606).

9. A multifunctional gas detection alarm device according to claim 8, characterized in that: A sliding column (602) is fixedly connected to the opposite side of the two gas storage boxes (604), and the sliding column (602) is slidably connected to the sampling port (3). The end of the sliding column (602) away from the gas storage box (604) is fixedly connected to a pressing plate (601), and a spring (603) is fixedly connected between the pressing plate (601) and the outer wall of the gas storage box (604), and the spring (603) is sleeved on the outer surface of the sliding column (602).

10. A multifunctional gas detection alarm device according to claim 8, characterized in that: Side plates (605) are provided on both sides of the lifting plate (606), and the side plates (605) are fixedly connected to the sampling port (3). The side plates (605) are symmetrically provided with inclined grooves (608) on the side close to the lifting plate (606), and connecting columns (609) are slidably connected in the inclined grooves (608). The ends of the connecting columns (609) away from the inclined grooves (608) are fixedly connected to the side walls of the lifting plate (606).

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