A semiconductor gas sensor

Abstract

The present invention discloses a semiconductor gas sensor, the structure of which includes a sensor, a connecting device, a limiting plate, and a pin. When the present invention is used, two extension adjustment pieces are each installed with a connector, and the two connectors are connected in parallel to the left and right sides of the limiting plate. The sensor is vertically installed in the middle position inside the access cavity, and the position of the sensor is subsequently limited by the internal clamping rod. The extension adjustment piece is then used in conjunction with the connector to push the limiting plate downward and press it onto the sensor, effectively maintaining the stability of the sensor. Gas sensing detection is performed by docking the sensor with the docking assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of sensors, and in particular to a semiconductor gas sensor. Background Art

[0002] Semiconductor gas sensors are detection elements made of metal oxides or metal semiconductor oxide materials. When interacting with gases, they produce surface adsorption or reaction, causing carrier movement, which is characterized by conductivity or volt-ampere characteristics or surface potential changes to measure gas concentration. Based on the mechanism of action, they can be divided into surface-controlled type, surface potential type, volume-controlled type, etc. They have many practical advantages such as simple structure, high detection sensitivity, and fast response speed. The use of specific materials can also make the sensor particularly sensitive to certain gases. When using semiconductor gas sensors, areas that need improvement are:

[0003] When using a semiconductor gas sensor, under normal circumstances, the gas sensor is vertically installed inside the protective sleeve, and the pins on the gas sensor can then extend out of the protective sleeve through the through holes, effectively stably installing the gas sensor inside the protective sleeve, and the limiting plate is driven by two extension adjustment pieces to move down and press on top of the gas sensor, effectively maintaining the stability of the gas sensor and achieving good protection performance. The gas to be detected is then conducted to the inside of the gas sensor through the gas guide assembly in conjunction with the protective sleeve, and the odor is detected through the sensor element inside it. When the gas guide assembly is conducting the odor, since the gas guide assembly is installed on the protective sleeve, there is a certain distance between the gas guide assembly and the gas sensor. During the gas conduction process, since the gas is fluid, it enters the protective sleeve and diffuses and flows between the protective sleeve and the gas sensor, and cannot directly enter and flow into the gas sensor, thereby reducing the detection concentration of the gas, making it impossible for the sensor element inside the gas sensor to accurately detect the gas. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention is implemented through the following technical solution: a semiconductor gas sensor, whose structure includes a sensor, a connecting device, a limiting plate, and a pin. The sensor extends into the interior of the connecting device. The pin is provided on the sensor. The pin extends out of the connecting device through the sensor. The connecting device is provided with a limiting plate, and the limiting plate is connected to the top of the sensor.

[0005] As a further optimization of the content of the invention, the connecting device includes a through hole, a clamping rod, a protective sleeve, a joint, an extension adjustment piece, an access cavity, and a docking assembly. The through hole is provided at the lower end of the protective sleeve, and clamping rods are provided on the left and right sides of the protective sleeve. The clamping rod is connected with an extension adjustment piece, and the other end of the extension adjustment piece is connected to the joint, and the joint is connected to the limiting plate. The limiting plate is provided on the access cavity, and the access cavity is provided inside the protective sleeve. A docking assembly is installed on the protective sleeve, a sensor is provided inside the protective sleeve, and a pin is connected to the through hole.

[0006] As a further optimization of the content of the invention, the docking assembly includes a connection kit, an installation frame, a connecting frame, an air guide assembly, and an insert block. There are two connection kits, and the two connection kits are symmetrically set on the left and right sides of the connecting frame. Insert blocks are provided on both sides of the connecting frame, and the other end of the insert block is matched with the installation frame. An air guide assembly is provided in the middle position inside the installation frame, and the other end of the air guide assembly extends through the insert block and connects with the connection kit. The installation frame is installed on the protective sleeve.

[0007] As a further optimization of the content of the invention, the air guide assembly includes a guide outlet, a swinging stopper, a guide channel, a receiving chamber, a filter assembly, a shell, and a flow guide. The guide outlet is connected to the guide channel, and a swinging stopper connected to the guide channel is provided inside the guide channel. The guide channel is installed in the middle position inside the flow guide. The flow guide is provided with a receiving chamber, and the receiving chamber is connected to the shell. The shell is connected to the flow guide, and a filter assembly is installed on the shell. The shell is installed on the mounting frame, and the other end of the guide outlet extends through the plug block and is connected to the connecting kit.

[0008] As a further optimization of the content of the invention, the filter assembly includes a buckle, a receiving plate, a filter screen, a buckle, a rotating shaft, an arc-shaped plate, and a flow hole. The buckle is arranged on the receiving plate, and the receiving plate is provided with a plurality of flow holes connected thereto. The plurality of flow holes are connected to filter screens. A rotating shaft is installed on the receiving plate, and two arc-shaped plates are connected to the rotating shaft and the two are movably connected. A buckle is provided at the other end of the arc-shaped plate, and the buckle is connected to the buckle. The receiving plate is installed on the shell.

[0009] As a further optimization of the content of the invention, the swinging stopper includes an adsorption protrusion, a support plate, a movable shaft, a fitting pad, an auxiliary elastic rod, and a rocker arm. There are multiple adsorption protrusions, and multiple adsorption protrusions are set up on two fitting pads. The two fitting pads are respectively connected to the two support plates. The other end of the support plate is connected to the rocker arm. An auxiliary elastic rod is provided between the rocker arm and the support plate. The other end of the rocker arm is connected to the movable shaft and the two are movably connected. The movable shaft is connected to the inner wall of the guide channel.

[0010] As a further optimization of the content of the invention, the connection kit includes an elastic pressure piece, a pull strip, a sealing gasket, a soft rubber gasket, an outer ring, and a fixed block. The elastic pressure piece is arranged on the fixed block. The fixed block is provided with multiple blocks, and the multiple fixed blocks are equidistantly installed in a ring on the inner wall of the outer ring. Pull strips are provided on the left and right sides of the multiple fixed blocks, and soft rubber gaskets are provided on the pull strips. The left and right sides of the soft rubber gaskets are connected to the side walls of the fixed block. A sealing gasket is connected to the fixed block, and the sealing gasket is in contact with the elastic pressure piece. The outer ring is connected to the guide outlet, and the outer ring is provided on one side of the connecting frame.

[0011] As a further optimization of the invention, the three swing blocks are staggeredly arranged on both sides of the inner wall of the guide channel.

[0012] As a further optimization of the invention, the plurality of sealing gaskets and the plurality of soft rubber gaskets are arranged in an annular structure.

[0013] As a further optimization of the invention, the fitting pad is provided with a plurality of adsorption protrusions, which are made of rubber material. When the auxiliary elastic rod is movable and swinging, the adsorption protrusions at the upper and lower ends of the two auxiliary elastic rods will overlap with each other, effectively playing a blocking role.

[0014] As a further optimization of the content of the invention, the two arc-shaped plates are both semicircular in structure, and can be stably covered on the receiving plate under the action of the buckle and the rotating shaft.

[0015] As a further optimization of the invention, the sealing gasket and the soft rubber gasket are both made of colloid material, and when they come into contact with the outer wall of the outlet, they can be fitted and wrapped around it, so that a relatively closed state can be formed between the outlet and the outer ring.

[0016] Beneficial effects

[0017] The semiconductor gas sensor of the present invention has the following beneficial effects:

[0018] 1. The present invention is configured by combining a through hole, a clamping rod, a protective sleeve, a joint, an extension adjustment piece, an access cavity, and a docking assembly. Joints are installed on both extension adjustment pieces. The two joints are connected in parallel to the left and right sides of the limiting plate. The sensor is vertically installed in the middle position inside the access cavity. The position of the sensor is subsequently limited by the clamping rod inside the sensor. The extension adjustment piece is then used in conjunction with the joint to push the limiting plate downward and press it onto the sensor, effectively maintaining the stability of the sensor. Gas sensing detection is performed by docking the sensor with the docking assembly.

[0019] 2. The present invention is configured by combining a connecting kit, a mounting frame, a connecting frame, a gas guide assembly, and an insert block. The mounting frame and the connecting frame are matched with each other and placed inside a protective sleeve. The sensor is vertically placed into the protective sleeve and extends into the connecting frame. The sensor is docked with the connecting frame. The insert blocks on both sides of the connecting frame are fixedly connected to the mounting frame. The connecting kit is connected between the gas guide assembly and the sensor. Therefore, the gas to be detected can be directly introduced into the sensor through the gas guide assembly, thereby maintaining the gas concentration and allowing the sensor to accurately detect the gas.

[0020] 3. The present invention combines an elastic pressure piece, a pulling strip, a sealing gasket, a soft rubber gasket, an outer ring, and a fixed block. The outer ring is fitted and sleeved with the gas detection head and the guide port on the sensor. Multiple sealing gaskets and soft rubber gaskets are provided inside the outer ring. The multiple sealing gaskets and soft rubber gaskets cooperate with each other to fit and wrap the gas detection head and the guide port on the sensor, so that the two can form a relatively closed state under the action of the outer ring. The guide port can be opposite to the gas detection head on the sensor, effectively introducing the gas diameter into the gas detection head on the sensor, so that the sensor can quickly and accurately sense and detect the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0022] Figure 1 This is a schematic structural diagram of a semiconductor gas sensor according to the present invention;

[0023] Figure 2 Schematic diagram of the internal structure of the connecting device of the present invention.

[0024] Figure 3 Schematic diagram of the internal structure of the docking assembly of the present invention.

[0025] Figure 4 Schematic diagram of the internal structure of the air guide component of the present invention.

[0026] Figure 5 It is a schematic diagram of the top structure of the filter assembly of the present invention.

[0027] Figure 6 It is a schematic cross-sectional structural diagram of the swing stopper of the present invention.

[0028] Figure 7 It is a side view structural schematic diagram of the connection kit of the present invention.

[0029] Figure: sensor 1, connecting device 4, limiting plate 2, pin 3, through hole Q1, clamping rod E3, protective sleeve T5, connector W2, extension adjustment piece R4, access cavity Y6, docking assembly I7, connection kit R11, installation frame I15, connection frame T12, air guide assembly U14, plug block Y13, guide port D21, swing block F23, guide channel J25, receiving cavity G22, filter assembly K26, housing H 24. Flow guide L27, buckle K31, connecting plate Z33, filter screen C35, connecting buckle L32, rotating shaft X34, curved disk B37, flow hole V36, adsorption bump E51, support plate Y54, movable shaft I56, fitting pad T52, auxiliary spring rod U55, rocker arm R53, elastic pressure piece C41, pulling strip N42, sealing gasket V43, soft rubber gasket B46, outer ring Q45, fixing block M44. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0031] Example 1

[0032] See also Figure 1 The present invention provides a technical solution: a semiconductor gas sensor, whose structure includes a sensor 1, a connecting device 4, a limiting plate 2, and a pin 3. The sensor 1 penetrates and extends into the connecting device 4. The pin 3 is provided on the sensor 1. The pin 3 extends out of the connecting device 4 through the sensor 1. The connecting device 4 is provided with a limiting plate 2, and the limiting plate 2 is connected to the top of the sensor 1.

[0033] See also Figure 2 The connecting device 4 includes a through hole Q1, a clamping rod E3, a protective sleeve T5, a joint W2, an extension adjustment piece R4, an access cavity Y6, and a docking assembly I7. The through hole Q1 is provided at the lower end of the protective sleeve T5. Clamping rods E3 are provided on both sides of the protective sleeve T5. The extension adjustment piece R4 is connected to the clamping rod E3. The other end of the extension adjustment piece R4 is connected to the joint W2. The joint W2 is connected to the limiting plate 2. The limiting plate 2 is provided on the access cavity Y6. The access cavity Y6 is provided inside the protective sleeve T5. The docking assembly I7 is installed on the protective sleeve T5. A sensor 1 is provided inside the protective sleeve T5. The through hole Q1 is connected to the pin 3.

[0034] The above-mentioned extension adjuster R4 is used to cooperate with the connector W2. The connector W2 is installed on both extension adjusters R4. The two connectors W2 are connected in parallel on the left and right sides of the limiting plate 2. The sensor 1 is vertically installed in the middle position inside the access cavity Y6. The position of the sensor 1 is limited by the internal clamping rod E3. Then, the extension adjuster R4 is used to cooperate with the connector W2 to push the limiting plate 2 downward and press it on the sensor 1, effectively maintaining the stability of the sensor 1.

[0035] See also Figure 3 The docking assembly I7 includes a connection kit R11, an installation frame I15, a connection frame T12, an air guide assembly U14, and an insert block Y13. Two connection kits R11 are provided, and the two connection kits R11 are symmetrically set on the left and right sides of the connection frame T12. Insert blocks Y13 are provided on both sides of the connection frame T12. The other end of the insert block Y13 is connected to the installation frame I15. An air guide assembly U14 is provided in the middle position inside the installation frame I15. The other end of the air guide assembly U14 extends through the insert block Y13 and connects with the connection kit R11. The installation frame I15 is installed on the protective sleeve T5.

[0036] See also Figure 4 The air guide component U14 includes a guide outlet D21, a swing stopper F23, a guide channel J25, a receiving cavity G22, a filter assembly K26, a shell H24, and a flow guide L27. The guide outlet D21 is connected to the guide channel J25. A swing stopper F23 connected to the guide channel J25 is provided inside the guide channel J25. The guide channel J25 is installed in the middle position inside the flow guide L27. The flow guide L27 is provided with a receiving cavity G22. The receiving cavity G22 is connected to the shell H24. The shell H24 is connected to the flow guide L27. A filter assembly K26 is installed on the shell H24. The shell H24 is installed on the installation frame I15. The other end of the guide outlet D21 extends through the plug block Y13 and connects with the connection kit R11.

[0037] See also Figure 4 The three swing blocks F23 are staggeredly set on both sides of the inner wall of the guide channel J25.

[0038] The above-mentioned flow guide L27 is used to cooperate with the shell H24. The lower end of the shell H24 is matched with the flow guide L27, and the gas received inside the shell H24 will be conducted to the receiving cavity G22 inside the flow guide L27. The lower end of the flow guide L27 is an inverted triangle structure, which effectively concentrates the gas received inside the receiving cavity G22 into the guide channel J25 in the middle position, and then the gas is discharged through the guide channel J25.

[0039] See also Figure 5The filter assembly K26 includes a buckle K31, a connecting plate Z33, a filter screen C35, a buckle L32, a rotating shaft X34, an arc disc B37, and a flow hole V36. The buckle K31 is provided on the connecting plate Z33. The connecting plate Z33 is provided with a plurality of flow holes V36 connected thereto. The plurality of flow holes V36 are all connected to the filter screen C35. The connecting plate Z33 is installed with a rotating shaft X34. Two arc discs B37 are connected to the rotating shaft X34 and the two are movably connected. The other end of the arc disc B37 is provided with a buckle L32. The buckle L32 is connected to the buckle K31. The connecting plate Z33 is installed on the shell H24.

[0040] See also Figure 5 The two arc-shaped disks B37 are both semicircular in structure and can be stably covered on the receiving disk Z33 under the action of the buckle K31 and the rotating shaft X34.

[0041] The above-mentioned filter screen C35 is used to cooperate with the flow hole V36. There are multiple flow holes V36. Multiple large flow holes V36 are set in the middle position of the receiving plate Z33, and small flow holes V36 are set on the outer ring of the receiving plate Z33. A layer of filter screen C35 is provided on the flow holes V36 of different sizes. The filter screen C35 can effectively block and screen out impurities in the gas, preventing impurities from entering the interior of the sensor 1 and causing damage to the components, thereby effectively improving the service life of the sensor 1.

[0042] See also Figure 6 The swing block F23 includes an adsorption protrusion E51, a support plate Y54, an active shaft I56, a fitting pad T52, an auxiliary elastic rod U55, and a rocker arm R53. There are multiple adsorption protrusions E51, and multiple adsorption protrusions E51 are set up on two fitting pads T52. The two fitting pads T52 are respectively connected to the two support plates Y54. The other end of the support plate Y54 is connected to the rocker arm R53. An auxiliary elastic rod U55 is provided between the rocker arm R53 and the support plate Y54. The other end of the rocker arm R53 is connected to the active shaft I56 and the two are movably connected. The active shaft I56 is connected to the inner wall of the guide channel J25.

[0043] See also Figure 6 The fitting pad T52 is provided with a plurality of adsorption protrusions E51, which are made of rubber material. When the auxiliary elastic rod U55 is movable and swinging, the adsorption protrusions E51 at the upper and lower ends of the two auxiliary elastic rods U55 will overlap with each other, effectively playing a blocking role.

[0044] Example 2

[0045] See also Figure 1 , the present invention provides a technical solution: please refer to Figure 1The present invention provides a technical solution: a semiconductor gas sensor, whose structure includes a sensor 1, a connecting device 4, a limiting plate 2, and a pin 3. The sensor 1 penetrates and extends into the connecting device 4. The pin 3 is provided on the sensor 1. The pin 3 extends out of the connecting device 4 through the sensor 1. The connecting device 4 is provided with a limiting plate 2, and the limiting plate 2 is connected to the top of the sensor 1.

[0046] See also Figure 2 The connecting device 4 includes a through hole Q1, a clamping rod E3, a protective sleeve T5, a joint W2, an extension adjustment piece R4, an access cavity Y6, and a docking assembly I7. The through hole Q1 is provided at the lower end of the protective sleeve T5. Clamping rods E3 are provided on both sides of the protective sleeve T5. The extension adjustment piece R4 is connected to the clamping rod E3. The other end of the extension adjustment piece R4 is connected to the joint W2. The joint W2 is connected to the limiting plate 2. The limiting plate 2 is provided on the access cavity Y6. The access cavity Y6 is provided inside the protective sleeve T5. The docking assembly I7 is installed on the protective sleeve T5. A sensor 1 is provided inside the protective sleeve T5. The through hole Q1 is connected to the pin 3.

[0047] The above-mentioned extension adjuster R4 is used to cooperate with the connector W2. The connector W2 is installed on both extension adjusters R4. The two connectors W2 are connected in parallel on the left and right sides of the limiting plate 2. The sensor 1 is vertically installed in the middle position inside the access cavity Y6. The position of the sensor 1 is limited by the internal clamping rod E3. Then, the extension adjuster R4 is used to cooperate with the connector W2 to push the limiting plate 2 downward and press it on the sensor 1, effectively maintaining the stability of the sensor 1.

[0048] See also Figure 3 The docking assembly I7 includes a connection kit R11, an installation frame I15, a connection frame T12, an air guide assembly U14, and an insert block Y13. Two connection kits R11 are provided, and the two connection kits R11 are symmetrically set on the left and right sides of the connection frame T12. Insert blocks Y13 are provided on both sides of the connection frame T12. The other end of the insert block Y13 is connected to the installation frame I15. An air guide assembly U14 is provided in the middle position inside the installation frame I15. The other end of the air guide assembly U14 extends through the insert block Y13 and connects with the connection kit R11. The installation frame I15 is installed on the protective sleeve T5.

[0049] See also Figure 4The air guide component U14 includes a guide outlet D21, a swing stopper F23, a guide channel J25, a receiving cavity G22, a filter assembly K26, a shell H24, and a flow guide L27. The guide outlet D21 is connected to the guide channel J25. A swing stopper F23 connected to the guide channel J25 is provided inside the guide channel J25. The guide channel J25 is installed in the middle position inside the flow guide L27. The flow guide L27 is provided with a receiving cavity G22. The receiving cavity G22 is connected to the shell H24. The shell H24 is connected to the flow guide L27. A filter assembly K26 is installed on the shell H24. The shell H24 is installed on the installation frame I15. The other end of the guide outlet D21 extends through the plug block Y13 and connects with the connection kit R11.

[0050] See also Figure 4 The three swing blocks F23 are staggeredly set on both sides of the inner wall of the guide channel J25.

[0051] The above-mentioned flow guide L27 is used to cooperate with the shell H24. The lower end of the shell H24 is matched with the flow guide L27, and the gas received inside the shell H24 will be conducted to the receiving cavity G22 inside the flow guide L27. The lower end of the flow guide L27 is an inverted triangle structure, which effectively concentrates the gas received inside the receiving cavity G22 into the guide channel J25 in the middle position, and then the gas is discharged through the guide channel J25.

[0052] See also Figure 5 The filter assembly K26 includes a buckle K31, a connecting plate Z33, a filter screen C35, a buckle L32, a rotating shaft X34, an arc disc B37, and a flow hole V36. The buckle K31 is provided on the connecting plate Z33. The connecting plate Z33 is provided with a plurality of flow holes V36 connected thereto. The plurality of flow holes V36 are all connected to the filter screen C35. The connecting plate Z33 is installed with a rotating shaft X34. Two arc discs B37 are connected to the rotating shaft X34 and the two are movably connected. The other end of the arc disc B37 is provided with a buckle L32. The buckle L32 is connected to the buckle K31. The connecting plate Z33 is installed on the shell H24.

[0053] See also Figure 5 The two arc-shaped disks B37 are both semicircular in structure and can be stably covered on the receiving disk Z33 under the action of the buckle K31 and the rotating shaft X34.

[0054] The above-mentioned filter screen C35 is used to cooperate with the flow hole V36. There are multiple flow holes V36. Multiple large flow holes V36 are set in the middle position of the receiving plate Z33, and small flow holes V36 are set on the outer ring of the receiving plate Z33. A layer of filter screen C35 is provided on the flow holes V36 of different sizes. The filter screen C35 can effectively block and screen out impurities in the gas, preventing impurities from entering the interior of the sensor 1 and causing damage to the components, thereby effectively improving the service life of the sensor 1.

[0055] See also Figure 6 The swing block F23 includes an adsorption protrusion E51, a support plate Y54, an active shaft I56, a fitting pad T52, an auxiliary elastic rod U55, and a rocker arm R53. There are multiple adsorption protrusions E51, and multiple adsorption protrusions E51 are set up on two fitting pads T52. The two fitting pads T52 are respectively connected to the two support plates Y54. The other end of the support plate Y54 is connected to the rocker arm R53. An auxiliary elastic rod U55 is provided between the rocker arm R53 and the support plate Y54. The other end of the rocker arm R53 is connected to the active shaft I56 and the two are movably connected. The active shaft I56 is connected to the inner wall of the guide channel J25.

[0056] See also Figure 6 The fitting pad T52 is provided with a plurality of adsorption protrusions E51, which are made of rubber material. When the auxiliary elastic rod U55 is movable and swinging, the adsorption protrusions E51 at the upper and lower ends of the two auxiliary elastic rods U55 will overlap with each other, effectively playing a blocking role.

[0057] See also Figure 7 The connection kit R11 includes an elastic pressure piece C41, a pulling strip N42, a sealing gasket V43, a soft rubber gasket B46, an outer ring Q45, and a fixed block M44. The elastic pressure piece C41 is arranged on the fixed block M44. The fixed block M44 is provided with multiple pieces, and the multiple fixed blocks M44 are equidistantly annularly installed on the inner wall of the outer ring Q45. The left and right sides of the multiple fixed blocks M44 are provided with a pulling strip N42, and the pulling strip N42 is provided with a soft rubber gasket B46. The left and right sides of the soft rubber gasket B46 are connected to the side walls of the fixed block M44. The fixed block M44 is connected with a sealing gasket V43, and the sealing gasket V43 is in contact with the elastic pressure piece C41. The outer ring Q45 is connected to the guide port D21, and the outer ring Q45 is provided on one side of the connecting frame T12.

[0058] See also Figure 7 The plurality of sealing gaskets V43 and the plurality of soft rubber gaskets B46 are arranged in a ring structure.

[0059] See also Figure 7The sealing gasket V43 and the soft rubber gasket B46 are both made of colloid material. When they come into contact with the outer wall of the outlet D21, they can fit and wrap around it, so that a relatively closed state can be formed between the outlet D21 and the outer ring Q45.

[0060] The working principle of the above technical solution is described below:

[0061] When the present invention is in use, the two mounting frames I15 are mounted on the left and right sides of the connecting frame T12 through the insert Y13. The connecting frame T12 and the mounting frame I15 cooperate with each other and are placed inside the protective sleeve T5. The two extension adjustment members R4 are both equipped with connectors W2. The two connectors W2 are connected in parallel to the left and right sides of the limiting plate 2. When the sensor 1 is vertically extended into the protective sleeve T5, it will penetrate into the connecting frame T12, and then extend outward through the connecting frame T12 and move downward. The pin 3 at the lower end of the sensor 1 will penetrate the protective sleeve T5 through the through hole Q1, and the clamping rods on both sides of the internal E3 will be against the left and right sides of sensor 1, effectively limiting its position, and then the extension adjustment piece R4 will be retracted inward and overlapped, and the limiting plate 2 can be pushed down and pressed on the sensor 1 in conjunction with the connector W2, effectively maintaining the stability of the sensor 1. The limiting plate 2 has a breathable mesh structure in the middle, which effectively cooperates with the sensor 1 to play a ventilating role and prevent the accumulation of hot air generated by the operation of the sensor 1. The sensor 1 is vertically placed in the protective sleeve T5 and extends into the connection frame T12. When gas detection is required, the gas detection head on the sensor 1 is inserted into the outer ring Q45, and the other end of the outer ring Q45 is inserted into the outer ring Q45. The end will fit together with the outlet D21. The gas detection head and the outlet D21 on the sensor 1 can fit together under the action of the outer ring Q45. There are multiple sealing gaskets V43 and soft rubber gaskets B46 inside the outer ring Q45. The sealing gaskets V43 and the soft rubber gaskets B46 will retract inward after being pressed by the gas detection head and the outlet D21 on the sensor 1. After retracting inward, the sealing gasket V43 will press the elastic pressure piece C41 at its lower end. After being pressed, the elastic pressure piece C41 will be guided to the fixed block M44. The fixed block M44 is in a tight state, so After being compressed, it is not easy to shrink and deform, so that the elastic pressure piece C41 will generate a rebound force to pop the sealing gasket V43 outward. Under the action of the pulling strip N42, the soft rubber gasket B46 will be limited to a limited extension limit, so that the sealing gasket V43 and the soft rubber gasket B46 can cooperate with each other to fit and wrap the gas detection head and the guide port D21 on the sensor 1. Under the action of the outer ring Q45, the two can form a relatively closed state. The guide port D21 can be opposite to the gas detection head on the sensor 1, effectively guiding the gas diameter into the gas detection head on the sensor 1.

[0062] When monitoring the gas, the two arc-shaped disks B37 are rotated outward and opened through the rotating shaft X34, so that the connecting plate Z33 will appear outside. There are multiple large and small flow holes V36 on the connecting plate Z33. Multiple large flow holes V36 are set in the middle position of the connecting plate Z33, and small flow holes V36 are set on the outer ring of the connecting plate Z33. A layer of filter C35 is provided on the large and small flow holes V36. The gas flows to the connecting plate Z33. The filter C35 can effectively block and filter out impurities in the gas, preventing impurities from entering the interior of the sensor 1 and causing damage to the components, thereby effectively improving the service life of the sensor 1. The connecting plate Z33 is installed at the upper end of the housing H24. , so that the gas received by the flow hole V36 will flow into the shell H24, and the lower end of the shell H24 will be matched with the flow guide L27. The gas received in the shell H24 will be conducted to the receiving cavity G22 inside the flow guide L27. The lower end of the flow guide L27 is an inverted triangle structure, which effectively guides the gas received in the receiving cavity G22 into the guide channel J25 in the middle position. Three staggered rocker rods R53 are provided inside the guide channel J25. After being impacted by the flow of gas, the rocker rod R53 will swing downward under the action of the movable shaft I56, and the support plate Y54 connected to the rocker rod R53 will be driven downward. The three rocker rods R53 will move forward at once. When the gas is swung downward, the gas will flow downward along the channel between the three rocker arms R53 and out of the guide channel J25. The three rocker arms R53 can slow down the flow of the gas, thereby reducing the impact of the gas flow and stably guiding the gas out through the guide channel J25. After the gas conduction is completed, the two arc disks B37 are brought back inward by the rotating shaft X34. After the two arc disks B37 are retracted, the buckle L32 above them will be buckled with the buckle K31 on the connecting plate Z33, so that the arc disk B37 can be stably blocked on the connecting plate Z33, effectively blocking the external gas. After the gas is guided into the interior of the gas detection head through the guide port D21, the rocker arm R53 is under the rebound force of multiple auxiliary spring rods U55. It will swing upward and lift up through the movable shaft I56, and the support plate Y54 will be lifted up by the rocker arm R53. The three rocker arms R53 will swing upward at the same time, and the fitting pads T52 at the upper and lower ends will overlap together. The adsorption bumps E51 on the fitting pads T52 will overlap and adsorb together, effectively blocking the guide channel J25, preventing the gas from entering the sensor 1 one after another, effectively controlling the operation of the sensor 1, and preventing the sensor 1 from overheating and damage due to high-intensity operation. After being discharged, the gas will be guided to the gas detection head through the outlet D21, effectively introducing the gas completely into the gas detection head, thereby maintaining the detection concentration of the gas, so that the sensor 1 can detect the gas quickly and accurately.

[0063] To summarize, the present invention adopts a combination of a sensor, a connecting device, a limiting plate, and a pin to form a new semiconductor gas sensor. Connectors are installed on both extension adjusting parts, and the two connectors are connected in parallel on the left and right sides of the limiting plate. The sensor is vertically installed in the middle position inside the access cavity, and the position of the sensor is limited by the internal clamping rod. The extension adjusting part is then used in conjunction with the connector to push the limiting plate downward and press it onto the sensor, effectively maintaining the stability of the sensor. Gas sensing detection is performed by docking the sensor with the docking assembly.

[0064] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all points of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0065] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A semiconductor gas sensor, comprising a sensor (1), a connecting device (4), a limiting plate (2), and a pin (3), characterized in that: The pin (3) on the sensor (1) extends through the connecting device (4), and the connecting device (4) is provided with a limiting plate (2), and the limiting plate (2) is connected to the top of the sensor (1); The connecting device (4) includes a through hole (Q1), a clamping rod (E3), a protective sleeve (T5), a connector (W2), an extension adjustment piece (R4), an access cavity (Y6), and a docking assembly (I7). The through hole (Q1) is provided on the protective sleeve (T5). The clamping rod (E3) on the protective sleeve (T5) is connected to the extension adjustment piece (R4). The connector (W2) on the extension adjustment piece (R4) is connected to the limiting plate (2). The limiting plate (2) is provided on the access cavity (Y6). The access cavity (Y6) is provided on the protective sleeve (T5). The docking assembly (I7) is installed on the protective sleeve (T5). The protective sleeve (T5) is provided with a sensor (1). The through hole (Q1) is connected to a pin. (3), the docking assembly (I7) includes a connection kit (R11), a mounting frame (I15), a connecting frame (T12), an air guide assembly (U14), and an insert (Y13), wherein the connection kit (R11) is arranged on the connecting frame (T12), the insert (Y13) on the connecting frame (T12) is matched and connected with the mounting frame (I15), the air guide assembly (U14) on the mounting frame (I15) extends through the insert (Y13) and is connected with the connection kit (R11), the mounting frame (I15) is mounted on the protective sleeve (T5), and the air guide assembly (U14) includes a guide outlet (D21), a swing stopper (F23), a flow guide channel (J25), a receiving cavity (G22), a filter assembly (K2 6), housing (H24), flow guide (L27), the guide outlet (D21) is connected to the guide channel (J25), the guide channel (J25) is provided with a swing block (F23), the guide channel (J25) is installed on the flow guide (L27), the receiving cavity (G22) on the flow guide (L27) is connected to the housing (H24), the housing (H24) is connected to the flow guide (L27), a filter assembly (K26) is installed on the housing (H24), the housing (H24) is installed on the installation frame (I15), the guide outlet (D21) extends through the plug (Y13) and is connected to the connection kit (R11), the connection kit (R11) includes an elastic pressure Part (C41), a pulling strip (N42), a sealing gasket (V43), a soft rubber gasket (B46), an outer ring (Q45), and a fixed block (M44), wherein the elastic pressure piece (C41) is arranged on the fixed block (M44), the fixed block (M44) is installed on the outer ring (Q45), a soft rubber gasket (B46) is provided on the pulling strip (N42) on the fixed block (M44), the soft rubber gasket (B46) is connected to the fixed block (M44), the fixed block (M44) is connected to a sealing gasket (V43), the sealing gasket (V43) is fitted with the elastic pressure piece (C41), the outer ring (Q45) is connected to the guide port (D21), and the outer ring (Q45) is arranged on the connection frame (T12).

2. The semiconductor gas sensor according to claim 1, characterized in that: The filter assembly (K26) includes a buckle (K31), a connecting plate (Z33), a filter screen (C35), a connecting buckle (L32), a rotating shaft (X34), an arc-shaped plate (B37), and a flow hole (V36). The buckle (K31) is provided on the connecting plate (Z33). The flow hole (V36) on the connecting plate (Z33) is connected to the filter screen (C35). The rotating shaft (X34) on the connecting plate (Z33) is movably connected to the arc-shaped plate (B37). The arc-shaped plate (B37) is provided with a connecting buckle (L32). The connecting buckle (L32) is connected to the buckle (K31). The connecting plate (Z33) is installed on the housing (H24).

3. The semiconductor gas sensor according to claim 1, wherein: The swing block (F23) includes an adsorption convex point (E51), a support plate (Y54), a movable shaft (I56), a fitting pad (T52), an auxiliary elastic rod (U55), and a rocker arm (R53). The adsorption convex point (E51) is provided on the fitting pad (T52). The support plate (Y54) on the fitting pad (T52) is connected to the rocker arm (R53). An auxiliary elastic rod (U55) is provided between the rocker arm (R53) and the support plate (Y54). The rocker arm (R53) is movably connected to the movable shaft (I56). The movable shaft (I56) is connected to the guide channel (J25).

4. The semiconductor gas sensor according to claim 1, wherein: The three swing blocks (F23) are staggeredly arranged on both sides of the inner wall of the guide channel (J25).

5. The semiconductor gas sensor according to claim 1, wherein: The plurality of sealing gaskets (V43) and the plurality of soft rubber gaskets (B46) are arranged in a ring structure.

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