A detection device for oxygen sensor chip detection

Abstract

This invention discloses a detection device for oxygen sensor chip testing, relating to the technical field of oxygen sensor testing equipment. It includes a testing box mounted on a testing platform. The side wall of the testing box has several mounting holes for plug insertion into the oxygen sensor chips. An adjustment pipe connecting to a factory mixed gas pipeline is located on the side of the testing box, and an oxygen pipeline connecting to a factory oxygen supply pipeline is also located on the side of the testing box. Inside the testing box, partitions are slidably arranged along the height direction of the testing box. This detection device for oxygen sensor chip testing, through the use of partitions, flaps, and telescopic components, flexibly achieves zoned isolation control of the testing box, while ensuring full contact between the test gas and the plug. This facilitates rapid and uniform coverage of the sensitive areas of each oxygen sensor chip by the test gas, shortening the response time and improving the consistency and reliability when multiple chips are tested simultaneously.

Description

Technical Field

[0001] This invention relates to the field of oxygen sensor detection equipment technology, and in particular to a detection device for detecting oxygen sensor chips. Background Technology

[0002] An oxygen sensor is a gas-sensitive device capable of real-time detection and quantitative analysis of the oxygen content in the environment. Its basic function is to convert oxygen concentration or partial pressure into an electrical signal that can be read by instruments, such as changes in voltage, current, or resistance. Based on the sensitive materials used and the working principle, oxygen sensors can be divided into two main categories: high-temperature type and room-temperature type.

[0003] For example, a patent entitled "A Detection Device for Oxygen Sensor Chip Detection" (patent application number: CN202121250576.5) discloses a detection device for oxygen sensor chip detection. It allows multiple oxygen sensors to be connected at one time through several mounting holes and sockets, and the pressure plate driven by the driving cylinder can simultaneously press multiple oxygen sensors to be tested, thus improving detection efficiency. However, in actual use, this device lacks a flexible partitioning and isolation structure. Especially when there are few oxygen sensor chips being tested, there are many empty workstations, which affects the contact effect between the test end and the detection gas and reduces detection efficiency.

[0004] Therefore, it is necessary to propose a detection device for oxygen sensor chip detection to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a detection device for oxygen sensor chip detection, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a detection device for detecting oxygen sensor chips, comprising a detection box installed on a detection platform, a plurality of mounting holes for plug insertion of oxygen sensor chips are provided on the side wall of the detection box, an adjustment pipe connected to a factory mixed gas pipeline is provided on the side of the detection box, and an oxygen pipeline connected to a factory oxygen supply pipeline is provided on the side of the detection box.

[0007] The inside of the test chamber is equipped with partitions that are distributed along the height of the test chamber, and the side of the partitions near the mounting holes is equipped with telescopic components for separating the inner cavity of the test chamber.

[0008] The partition has a square groove, and a through hole is located on the side of the square groove near the mounting hole. The through hole penetrates the outer wall of the partition. A flap is hinged inside the square groove. A stop bar for closing the through hole is hinged on the side of the partition near the mounting hole, and the stop bar has a right angle portion that abuts against the telescopic component.

[0009] Preferably, the telescopic component includes a frame, an extension plate, and a first spring. The frame is fixedly connected to the outer wall of the partition, the extension plate is slidably disposed inside the frame, and the first spring is disposed inside the frame, wherein the right-angle portion abuts against the extension plate.

[0010] Preferably, an electromagnet is provided between the mounting holes of two adjacent columns. The electromagnet is fixedly embedded in the outer wall of the detection box and cooperates with the extension plate.

[0011] Preferably, a bar is fixedly connected to the baffle, and both ends of the bar are rotatably mounted on the outer wall of the partition. A torsion spring is fitted on the bar.

[0012] Preferably, multiple through holes are provided, and the through holes are sequentially engaged with multiple plugs at the same height position.

[0013] Preferably, the swing distance of the flap near the mounting hole is greater than the diameter of the through hole and less than the thickness of the partition.

[0014] Preferably, the maximum extension length of the telescopic member is greater than the width of the stop bar.

[0015] Preferably, the testing box is provided with a driving component that drives the partition to reciprocate along the length of the testing box. The driving component includes an electric push rod and a slide rod.

[0016] Preferably, the width of the square groove is greater than half the width of the partition.

[0017] Preferably, a closing plate is provided at the mounting hole, and the closing plate is attached to the inner wall of the testing box.

[0018] The technical effects and advantages of this invention are as follows:

[0019] 1. By setting up structures such as partitions, flaps and telescopic parts, the present invention can flexibly realize the partition isolation control of the detection box, while ensuring that the test gas is in full contact with the plug. This is beneficial for the test gas to quickly and evenly cover the sensitive areas of each oxygen sensor chip, shorten the response time, and improve the consistency and reliability when multiple chips are detected simultaneously.

[0020] 2. The flap rotates adaptively according to the direction of the partition movement, further ensuring full contact between the test gas and the plug;

[0021] 3. By setting up structures such as baffles and using the extension plate to control the flipping state of the baffles, the effect of partition isolation is ensured;

[0022] 4. The drive unit moves the partition and telescopic parts back and forth inside the detection chamber, agitating the test gas and making the concentration distribution of the test gas inside the detection chamber more uniform. This avoids the impact of local oxygen concentration differences on the consistency of detection results of multiple oxygen sensor chips, thereby improving detection accuracy and repeatability.

[0023] 5. By setting up structures such as sliding plates and inner plates, the opening and closing of the mounting holes can be controlled independently, while the oxygen sensor chip is squeezed and positioned to ensure the stability of the detection.

[0024] 6. External gas is filtered through the filter screen and enters the mounting hole through the air inlet, realizing gas flow at the test end and ensuring the cleaning effect;

[0025] 7. By setting up structures such as rubber sleeves and second springs, the bottom end of the air inlet can be closed, so that there will be no leakage when filling in and sucking out test gas, ensuring stable testing. At the same time, the bottom rod is tightly attached to the slot to prevent loosening. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the detection device for oxygen sensor chip detection according to the present invention.

[0027] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0028] Figure 3 This is a schematic diagram of the detection box and drive component structure of the present invention.

[0029] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at point B.

[0030] Figure 5 For the present invention Figure 3 Enlarged schematic diagram of the structure at point C.

[0031] Figure 6 This is a schematic diagram of the partition and flap structure of the present invention.

[0032] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point D.

[0033] Figure 8 This is a schematic diagram of the partition and through-hole structure of the present invention.

[0034] Figure 9 This is a schematic diagram of the closed plate and inner plate structure of the present invention.

[0035] Figure 10 For the present invention Figure 9 Enlarged schematic diagram of the structure at point E in the middle.

[0036] Figure 11 This is a schematic diagram of the inner plate and sliding plate structure of the present invention.

[0037] In the diagram: 1. Testing platform; 2. Testing box; 201. Mounting hole; 3. Partition plate; 301. Square groove; 4. Flip plate; 5. Through hole; 6. Stop bar; 601. Right angle part; 602. Bar rod; 7. Torsion spring; 8. Frame; 9. Extension plate; 901. First spring; 10. Driving component; 1001. Electric push rod; 1002. Slide rod; 11. Adjusting pipe; 12. Oxygen pipe; 13. Ring sleeve; 1301. Air inlet; 1302. Filter screen; 14. Closing plate; 15. Inner plate; 16. Sliding channel; 17. Slide plate; 18. Top rod; 19. Elastic telescopic rod; 20. Connecting plate; 21. Middle rod; 22. Bottom rod; 23. Fixing rod; 24. Rubber sleeve; 25. Second spring; 26. Slot; 27. Electromagnet; 28. Plug. Detailed Implementation

[0038] This invention provides, for example Figures 1 to 11 The device shown is a detection apparatus for oxygen sensor chip detection, including a detection platform 1 and a detection box 2 for oxygen sensor chip detection mounted on the detection platform 1. Multiple mounting holes 201 are provided on one side of the detection box 2, arranged in a matrix. In actual use, the plug 28 of the oxygen sensor chip is connected to the mounting hole 201. The oxygen sensor chip is a room-temperature type, with its mounting flange abutting against the outside of the detection box 2. The test end extends into the interior of the detection box 2, and the outer diameter of the test end is smaller than the inner diameter of the mounting hole 201 to ensure contact with the detected gas. Furthermore, the oxygen sensor chip achieves stable connection with an external display platform (not shown in the figure) via a shielded data cable. This shielded data cable effectively resists external electromagnetic interference, ensuring stable transmission of electrical signals. The display platform integrates data acquisition, analysis, display, and storage functions, and can present the detection data of the oxygen sensor chip in real time. It also supports the export and traceability of detection results. The oxygen sensor chip detection and its working principle are common existing technologies and will not be elaborated upon here.

[0039] The side of the testing chamber 2 is equipped with an oxygen pipeline 12 that connects to the factory's oxygen supply pipeline. The oxygen pipeline 12 is equipped with a high-precision flow control valve and a pressure monitoring instrument, which can accurately adjust the oxygen input according to different testing conditions. The side of the testing chamber 2 is also equipped with a regulating pipeline 11 that connects to the factory's mixed gas pipeline. The regulating pipeline 11 and the oxygen pipeline 12 are located on the same side of the testing chamber 2. The mixed gas is either nitrogen or carbon dioxide and is used to regulate the oxygen concentration in the testing chamber 2. The regulating pipeline 11 is equipped with a flow regulating valve, a pressure sensor, and a gas mass flow meter, which can accurately control the input flow and pressure of the mixed gas according to testing requirements. In addition, the regulating pipeline 11 is also branched to the factory's negative pressure suction pipeline through a three-way connector. The branch pipeline is equipped with an independent solenoid valve. During the testing preparation stage, the negative pressure suction function can be activated to thoroughly remove residual dust, debris, and external air intrusion into the testing chamber 2, ensuring that the initial environment in the testing chamber meets the testing standards and avoiding impurities and interfering gases from affecting the accuracy of the test results.

[0040] Specifically, after the plug 28 of the oxygen sensor chip is connected to the mounting hole 201, oxygen and mixed gas are introduced to form a test gas, creating a mixed gas environment with different oxygen concentration ratios to test the oxygen sensor chip. After the test, the test gas is extracted and can be recycled.

[0041] By adjusting the coordination between pipe 11 and oxygen pipe 12, a mixed gas environment with different oxygen concentration ratios can be constructed inside the detection chamber 2. This can comprehensively simulate various working conditions of the oxygen sensing chip in practical applications, thereby enabling a comprehensive and multi-dimensional accurate evaluation of the chip's detection performance.

[0042] To achieve zoned isolation control of the testing box 2, a partition 3 is slidably installed inside the testing box 2. The partition 3 is distributed along the height direction of the testing box 2, and the top, bottom and the side away from the mounting hole 201 of the partition 3 are all attached to the inner wall of the testing box 2. The other side forms a gas flow channel between the partition 3 and the inner wall of the testing box 2. A wear-resistant pad is provided at the joint between the partition 3 and the inner wall of the testing box 2 to reduce wear and ensure sealing.

[0043] A telescopic component is provided on the side of the partition 3 near the mounting hole 201. The telescopic component is used to block the gas flow channel, thereby completing the isolation of the inner cavity of the detection box 2.

[0044] In a specific configuration, the telescopic component includes a frame 8, an extension plate 9, and a first spring 901. The frame 8 is fixedly connected to the outer wall of the partition 3 and is L-shaped. The extension plate 9 is slidably disposed inside the frame 8. The first spring 901 is disposed inside the frame 8. One end of the first spring 901 is fixedly connected to the extension plate 9, and the other end of the first spring 901 is fixedly connected to the inner wall of the frame 8.

[0045] Electromagnets 27 are installed between the mounting holes 201 in two adjacent columns. The electromagnets 27 are fixedly embedded in the outer wall of the detection box 2. The electromagnets 27 cooperate with the extension plate 9. The extension plate 9 is made of stainless steel that can withstand magnetic forces, while the frame 8, partition 3, etc., are made of stainless steel that is not affected by magnetic forces, such as high-strength plastic. When the extension plate 9 is positioned opposite one of the electromagnets 27, activating the electromagnet 27 causes the extension plate 9 to slide outward from the inside of the frame 8 and abut against the inner wall of the detection box 2. When the electromagnet 27 is deactivated, the reset force of the first spring 901 causes the extension plate 9 to retract into the inside of the frame 8, thus completing the partitioning and isolation control of the detection box 2. After retraction, the side of the frame 8 and the extension plate 9 closest to the mounting hole 201 is flush with the side of the partition 3 closest to the mounting hole 201. (Refer to...) Figure 3 When a small number of oxygen sensor chips are tested, the control partition 3 and the telescopic component are moved to the space between the two rows of mounting holes 201 on the right. At this time, only the mounting hole 201 at the far right is in use, and test gas can be introduced through the regulating pipe 11 and the oxygen pipe 12.

[0046] The testing box 2 is equipped with a drive component 10 that drives the partition 3 to reciprocate along the length of the testing box 2. The drive component 10 is located on the side of the partition 3 facing away from the regulating pipe 11. The drive component 10 includes an electric push rod 1001 and a slide rod 1002. The electric push rod 1001 is fixedly installed on the outer wall of the testing box 2, and the slide rod 1002 is slidably installed on the side wall of the testing box 2. One end of the slide rod 1002 is fixedly connected to the extension plate 9, and the other end of the slide rod 1002 is fixedly connected to the telescopic end of the electric push rod 1001. The partition 3 is driven to move inside the testing box 2 by the electric push rod 1001 and the slide rod 1002. The electric push rod 1001 is connected to the power supply of the factory.

[0047] To ensure that the plug 28 can fully contact the test gas, especially when testing a large number of oxygen sensor chips, a square groove 301 is provided through the partition 3. The side of the square groove 301 near the mounting hole 201 has a through hole 5, which penetrates the outer wall of the partition 3. Multiple through holes 5 are provided, and multiple plugs 28 at the same height position are sequentially matched with each other. A flap 4 is hinged inside the square groove 301, and a limit block or other structure is provided at the hinge point between the square groove 301 and the flap 4 to control the flap angle. The end of the flap 4 near the mounting hole 201 is always in contact with the inner wall of the square groove 301. Its swing distance is greater than the diameter of the through hole 5 and less than the thickness of the partition 3. When it swings to the maximum angle, it will not block the through hole 5.

[0048] Furthermore, wear-resistant pads can be installed at the joint between the partition 3 and the inner wall of the square groove 301 to ensure sealing and reduce wear.

[0049] When testing a large number of oxygen sensor chips, the drive component 10 moves the partition 3 and the telescopic component back and forth inside the detection chamber 2, agitating the test gas and making the concentration distribution of the test gas inside the detection chamber 2 more uniform. This avoids the impact of local oxygen concentration differences on the consistency of the detection results of multiple oxygen sensor chips, improving detection accuracy and repeatability. Simultaneously, referring to... Figure 3 , Figure 4 When the partition 3 and the telescopic component move from left to right, due to the gas resistance, the end of the flap 4 near the mounting hole 201 swings to the left. The test gas is guided by the inclined surface of the flap 4 into the interior of the through hole 5 and is ejected from the through hole 5. Since the height position of multiple plugs 28 corresponds to that of the through hole 5, the test gas is in full contact with the plugs 28, which is conducive to the test gas quickly and evenly covering the sensitive areas of each oxygen sensor chip and shortening the response time.

[0050] When the partition 3 and the telescopic component move from right to left, due to the gas resistance, the end of the flap 4 near the mounting hole 201 swings to the right. The test gas is guided by the inclined surface of the flap 4 into the interior of the through hole 5 and is ejected from the through hole 5. Since the height position of multiple plugs 28 corresponds to that of the through hole 5, the test gas is in full contact with the plugs 28.

[0051] In summary, by setting up structures such as partition 3, flap 4 and telescopic components, the present invention can flexibly realize the zone isolation control of the detection box 2, while ensuring that the test gas is in full contact with the plug 28. This is beneficial for the test gas to quickly and evenly cover the sensitive areas of each oxygen sensor chip, shorten the response time, and improve the consistency and reliability when multiple chips are detected simultaneously.

[0052] In addition, the flap 4 is adaptively flipped by the direction of movement of the partition 3, which further ensures that the test gas is in full contact with the plug 28.

[0053] The width of the square groove 301 is greater than half the width of the partition plate 3, ensuring that the square groove 301 has sufficient windward area, thereby ensuring the air output at the through hole 5.

[0054] Considering that when the partition plate 3, telescopic components, etc. cooperate to partition and isolate the inner cavity of the test box 2, if the through hole 5 is in the open state, the test gas will be connected through the through hole 5, affecting the partition isolation effect, in order to close the through hole 5, a baffle 6 is provided on the side of the partition plate 3 near the mounting hole 201. A bar rod 602 is fixedly connected to the baffle 6. Both ends of the bar rod 602 are rotatably set on the outer wall of the partition plate 3. A torsion spring 7 is fitted on the bar rod 602. One end of the torsion spring 7 is fixedly connected to the bar rod 602, and the other end of the torsion spring 7 is fixedly connected to the partition plate 3. The through hole 5 is closed by the baffle 6. The elastic support force of the torsion spring 7 is small, and only a small pushing force is needed to complete the flipping of the baffle 6. When no external force is applied, the elastic support force of the torsion spring 7 makes the baffle 6 fit against the outer wall of the partition plate 3, thus closing the through hole 5.

[0055] The baffle 6 has a right-angle portion 601 that abuts against the telescopic member. The right-angle portion 601 abuts against the extension plate 9. (Refer to...) Figure 4 The right-angled part 601 is located at the lower part of the baffle 6 near the telescopic member, while the upper part is arc-shaped. When the extension plate 9 extends outward to its maximum, the maximum extension length is greater than the width of the baffle 6, so the baffle 6 will not contact the inner wall of the detection box 2 when it flips.

[0056] When the extension plate 9 is positioned opposite to one of the electromagnets 27, the electromagnet 27 is activated, and the extension plate 9 slides outward from the inside of the frame 8 to abut against the inner wall of the detection box 2. At the same time, the right angle part 601 abuts against the extension plate 9. At this time, the baffle 6 cannot be flipped, so that the through hole 5 remains closed, ensuring the effect of partition isolation. When the extension plate 9 is retracted, the side of the extension plate 9 near the mounting hole 201 is flush with the side of the partition 3 near the mounting hole 201, without affecting the baffle 6 from flipping to open the through hole 5.

[0057] By setting up structures such as baffles 6 and using the extension plate 9 to control the flipping state of baffles 6, the effect of partition isolation is ensured.

[0058] A ring 13 is provided at the mounting hole 201. The ring 13 is fixed on the outer wall of the test box 2. The inner diameter of the ring 13 is the same as that of the mounting hole 201 and they are connected. A rubber pad or similar material can be placed at the end of the ring 13 away from the test box 2 to reduce wear and ensure sealing.

[0059] To achieve control over the opening and closing of a single mounting hole 201, a closing plate 14 is provided at the mounting hole 201. The closing plate 14 is attached to the inner wall of the detection box 2. The outer diameter of the closing plate 14 is larger than the inner diameter of the mounting hole 201, which can close the mounting hole 201. An inner plate 15 is fixedly connected to the top of the closing plate 14, and a sliding plate 17 is fixedly connected to the upper part of the inner plate 15. The sliding plate 17 and the inner plate 15 are arranged in a T-shape. A sliding channel 16 is provided on the side wall of the detection box 2 for the sliding plate 17 to slide. The sliding channel 16 is located above the mounting hole 201, and the inner plate 15 is provided with a sealing sleeve and other structures, which can keep the sliding channel 16 closed at all times.

[0060] A top rod 18 is rotatably mounted on the end of the slide plate 17 away from the inner plate 15. Both ends of the top rod 18 are fixedly connected to elastic telescopic rods 19. A connecting plate 20 is fixedly connected to the end of the elastic telescopic rod 19 away from the top rod 18. A middle rod 21 is fixedly connected between the top ends of the two connecting plates 20, and a bottom rod 22 is fixedly connected between the bottom ends of the two connecting plates 20. A fixing rod 23 is provided below the mounting hole 201. The fixing rod 23 is fixedly connected to the outer wall of the detection box 2. The upper and lower parts of the fixed rod 23 away from the detection box 2 are provided with slots 26. The upper slot 26 is used to engage the bottom rod 22, and the lower slot 26 is used to engage the middle rod 21. The slots 26 have a certain depth to prevent the middle rod 21 and the bottom rod 22 from slipping off at will.

[0061] Before testing, the middle rod 21 is snapped into the lower slot 26. At this time, the closing plate 14 closes the mounting hole 201 to prevent dust and other contaminants from entering.

[0062] During testing, pull down the middle rod 21 to remove it from the slot 26, flip the connecting plate 20, and move the closing plate 14 upward through the slide plate 17, inner plate 15, etc., so that the mounting hole 201 is opened. Then, connect the plug 28 of the oxygen sensor chip to the mounting hole 201, and its mounting flange abuts against the ring 13, with the test end extending into the interior of the test box 2. Next, snap the bottom rod 22 into the upper slot 26, the slide plate 17 abuts against the top of the sliding channel 16, and the connecting plate 20 presses against the mounting flange to press and position the plug 28 of the oxygen sensor chip.

[0063] By setting up structures such as the slide plate 17 and the inner plate 15, the mounting hole 201 can be opened and closed independently, and the oxygen sensor chip can be squeezed and positioned at the same time to ensure the stability of the detection.

[0064] Considering that dust may accumulate on the plug 28 of the oxygen sensor chip due to long-term storage, an air inlet 1301 is provided at the bottom of the ring 13 to handle the dust. A filter 1302 is fixedly installed inside the air inlet 1301. At the same time, a rubber sleeve 24 is slidably provided on the fixing rod 23. The rubber sleeve 24 abuts against the outer wall of the ring 13. A second spring 25 is fitted on the fixing rod 23. One end of the second spring 25 is fixedly connected to the outer wall of the detection box 2, and the other end of the second spring 25 is fixedly connected to the rubber sleeve 24. When no external force is applied, the rubber sleeve 24 is misaligned with the air inlet 1301 under the elastic support force of the second spring 25.

[0065] After the oxygen sensor chip's plug 28 is connected to the mounting hole 201, and its mounting flange abuts against the ring 13, and the test end extends into the interior of the test chamber 2, it is drawn in by the regulating pipe 11. External gas is filtered through the filter screen 1302 and enters the mounting hole 201 through the air inlet 1301, realizing gas flow at the test end and ensuring the cleaning effect. Then, the bottom rod 22 is snapped into the upper slot 26, and the connecting plate 20 is pressed against the mounting flange. Under the pressing action of the bottom rod 22, the rubber sleeve 24 moves towards the test chamber 2 and adaptably deforms to fit the bottom of the ring 13, closing the bottom end of the air inlet 1301, so that there will be no leakage when the test gas is filled in or sucked out, ensuring stable testing. In addition, under the restoring force of the second spring 25, the rubber sleeve 24 is pressed against the bottom rod 22, and the bottom rod 22 is tightly attached to the slot 26 to prevent loosening.

[0066] By setting up structures such as the rubber sleeve 24 and the second spring 25, the bottom end of the air inlet 1301 can be closed, so that there will be no leakage when the test gas is filled in or sucked out, ensuring stable testing. At the same time, the bottom rod 22 is tightly attached to the slot 26 to prevent loosening.

Claims

1. A detection device for detecting oxygen sensor chips, comprising a detection box (2) mounted on a detection stage (1), characterized in that: The side wall of the test box (2) is provided with a number of mounting holes (201) for plugging in the oxygen sensor chip plug (28). The side of the test box (2) is provided with a regulating pipe (11) that connects to the factory mixed gas pipeline. The side of the test box (2) is provided with an oxygen pipeline (12) that connects to the factory oxygen supply pipeline. The interior of the test box (2) is slidably provided with partitions (3) distributed along the height direction of the test box (2), and the side of the partition (3) near the mounting hole (201) is provided with a telescopic component for separating the interior cavity of the test box (2); The partition (3) has a square groove (301), and the side of the square groove (301) near the mounting hole (201) has a through hole (5). The through hole (5) penetrates the outer wall of the partition (3). A flap (4) is hinged inside the square groove (301). A stop (6) for closing the through hole (5) is hinged on the side of the partition (3) near the mounting hole (201), and the stop (6) has a right angle part (601) that abuts against the telescopic member. The telescopic component includes a frame (8), an extension plate (9) and a first spring (901). The frame (8) is fixedly connected to the outer wall of the partition (3). The extension plate (9) is slidably disposed inside the frame (8). The first spring (901) is disposed inside the frame (8), wherein the right angle portion (601) abuts against the extension plate (9). Electromagnets (27) are provided between the mounting holes (201) of two adjacent columns. The electromagnets (27) are fixedly embedded on the outer wall of the detection box (2). The electromagnets (27) cooperate with the extension plate (9). A bar (602) is fixedly connected to the baffle (6). Both ends of the bar (602) are rotatably set on the outer wall of the partition (3). A torsion spring (7) is fitted on the bar (602). Multiple through holes (5) are provided, and multiple plugs (28) at the same height position are sequentially matched with each other.

2. The detection device for oxygen sensor chip detection according to claim 1, characterized in that: The swing distance of the flap (4) near the mounting hole (201) is greater than the diameter of the through hole (5) and less than the thickness of the partition (3).

3. The detection device for oxygen sensor chip detection according to claim 1, characterized in that: The maximum extension length of the telescopic component is greater than the width of the stop bar (6).

4. The detection device for oxygen sensor chip detection according to claim 1, characterized in that: The detection box (2) is provided with a driving component (10) that drives the partition (3) to reciprocate along the length of the detection box (2). The driving component (10) includes an electric push rod (1001) and a slide rod (1002).

5. The detection device for oxygen sensor chip detection according to claim 1, characterized in that: The width of the square groove (301) is greater than half the width of the partition (3).

6. The detection device for oxygen sensor chip detection according to claim 1, characterized in that: A closing plate (14) is provided at the mounting hole (201), and the closing plate (14) is attached to the inner wall of the detection box (2).

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