Narrow-air-inlet-channel sensitive oxygen sensor chip

Abstract

The utility model discloses a narrow-air-inlet-channel sensitive oxygen sensor chip, which belongs to the technical field of sensor chip installation and comprises a chip main body and an oxygen sensor shell arranged outside the chip main body. According to the narrow-air-inlet-channel sensitive oxygen sensor chip, a telescopic rod is rotated to drive a rotating disc to rotate, the rotating disc enables a driving rod to slide in an arc-shaped hole of the rotating disc, the driving rod drives a sliding rod to slide, the sliding rod drives a clamping plate to get close to a protection box and abut against the protection box, and meanwhile the telescopic rod abuts against a ratchet through a clamping block and is locked; the driving rod, the sliding rod and the clamping plates are locked, the protection box is tightly abutted against the multiple clamping plates, rapid installation is completed, the protection box can be rapidly clamped and fixed, the protection box is stably installed in the oxygen sensor shell, normal work of the chip body in the oxygen sensor shell is guaranteed, and the chip has good performance and stability. And in the whole mounting process, no auxiliary tool is needed, and the chip main body and the oxygen sensor shell can be quickly mounted.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor chip installation technical field especially relates to a narrow air inlet way sensitive oxygen sensor chip. BACKGROUND

[0002] The narrow air inlet way sensitive oxygen sensor chip is a new type chip developed on the basis of traditional oxygen sensor for the working condition that the air inlet way is narrow, gas flow is small and composition is complex, and is widely applied in the fields of automobile exhaust emission control and industrial combustion monitoring.

[0003] However, when the existing narrow air inlet way sensitive oxygen sensor chip is installed into the oxygen sensor, the chip is first installed in the protective cover, and the purpose is to protect the ceramic chip from the influence of the external environment, and then the protective cover is fixed in the oxygen sensor shell by bolts and nuts, and since the internal space of the oxygen sensor is limited and narrow, a screwdriver or other installation tools are needed to assist installation when the bolts are installed, which is extremely inconvenient during installation and reduces the installation efficiency between the narrow air inlet way sensitive oxygen sensor chip and the oxygen sensor. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of narrow air inlet way sensitive oxygen sensor chips to solve the problem of low efficiency and inconvenient operation between the narrow air inlet way sensitive oxygen sensor chip and oxygen sensor in prior art.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of narrow air inlet way sensitive oxygen sensor chip, including chip main body and the oxygen sensor shell being set at the outside of chip main body, the protective box for installing oxygen sensor chip is sleeved at the outside of the chip main body, further including the fixed ring being fixedly connected in the oxygen sensor shell, multiple slide rods are slidably connected on the fixed ring, multiple clamping plates corresponding with protective box are slidably connected on each slide rod, driving rod is fixedly connected on each slide rod, rotating disc is rotatably connected in the fixed ring, multiple arc-shaped holes corresponding with driving rod are formed in the rotating disc.

[0007] Preferably, the chip main body is fixedly installed in the protective box, and the protective box is provided with an air inlet hole.

[0008] Preferably, multiple fixed rods are fixedly connected in the oxygen sensor shell, and the fixed ring is fixedly connected on multiple fixed rods, and spring is sleeved on each slide rod.

[0009] Preferably, two ends of the spring are fixedly connected with the slide rod and the outer wall of the fixed ring respectively, and an annular groove corresponding to the rotating disc is formed in the inner wall of the fixed ring.

[0010] Preferably, each driving rod is slidingly connected in each arc-shaped hole, a circular ring is fixedly connected to the inner wall of the oxygen sensor shell, a rotating groove is formed in the circular ring, and a plurality of ratchet teeth are fixedly connected to the inner wall of the rotating groove.

[0011] Preferably, a telescopic rod is fixedly connected to one side of the rotating disc, one end of the telescopic rod penetrates through the rotating groove, and a clamping block corresponding to the ratchet teeth is hinged to the telescopic rod.

[0012] Preferably, an elastic sheet is fixedly connected between the clamping block and the telescopic rod, and a baffle is fixedly connected to the telescopic rod.

[0013] Compared with the prior art, the narrow air inlet sensitive oxygen sensor chip has the following beneficial effects:

[0014] The narrow air inlet sensitive oxygen sensor chip drives the rotating disc to rotate through the telescopic rod, the driving rod slides in the arc-shaped hole of the rotating disc, the driving rod drives the slide rod to slide, the slide rod drives the clamping plate to approach and abut against the protection box, meanwhile, the telescopic rod abuts against and locks the ratchet teeth through the clamping block, the driving rod, the slide rod and the clamping plate are locked, the protection box is tightly abutted by the plurality of clamping plates, the protection box is clamped and fixed quickly, the protection box is stably installed in the oxygen sensor shell, the chip main body works normally in the oxygen sensor shell, the performance and stability are good, and the installation process does not need to use auxiliary tools, and the chip main body and the oxygen sensor shell can be installed quickly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A front structure schematic view of the narrow air inlet sensitive oxygen sensor chip is provided in the utility model;

[0016] Figure 2 A structure schematic view of the inside of the oxygen sensor shell in the narrow air inlet sensitive oxygen sensor chip is provided in the utility model;

[0017] Figure 3 A structure schematic view of a side view section of the narrow air inlet sensitive oxygen sensor chip is provided in the utility model;

[0018] Figure 4 A structure schematic view of the Figure 3 A structure schematic view of the A part in the utility model is provided;

[0019] Figure 5The utility model provides a kind of structure schematic diagram of telescopic rod in narrow air inlet channel sensitive oxygen sensor chip proposed by the utility model.

[0020] Figure 6 The utility model provides a kind of structure schematic diagram of chip main body in narrow air inlet channel sensitive oxygen sensor chip proposed by the utility model.

[0021] Figure 7 The utility model provides a kind of structure schematic diagram of circular ring, rotating groove, ratchet in narrow air inlet channel sensitive oxygen sensor chip proposed by the utility model.

[0022] Figure 8 The utility model provides Figure 7 The structure schematic diagram of part B in the middle.

[0023] Figure 9 The utility model provides a kind of structure schematic diagram of fixed ring, fixed rod, sliding rod, telescopic rod, protective box in narrow air inlet channel sensitive oxygen sensor chip proposed by the utility model.

[0024] In the drawing: 1, chip main body;2, oxygen sensor shell;3, protective box;4, fixed ring;5, sliding rod;6, clamping plate;7, drive rod;8, rotating disc;9, arc hole;10, air inlet hole;11, fixed rod;12, spring;13, circular ring;14, rotating groove;15, ratchet;16, telescopic rod;17, clamping block;18, elastic sheet;19, baffle. Specific implementation

[0025] The technical scheme in the utility model embodiment will be clearly and completely described below in conjunction with the drawings in the utility model embodiment, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment.

[0026] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and is not indicated or implied that the indicated device or element must have a particular orientation, a particular orientation configuration and operation, so it cannot be understood as the limitation of the utility model.

[0027] Refer to Figures 1-9A narrow-intake oxygen sensor chip includes a chip body 1 and an oxygen sensor housing 2 disposed outside the chip body 1. A protective box 3 for mounting the oxygen sensor chip is fitted outside the chip body 1. The chip body 1 also includes a fixing ring 4 fixedly connected inside the oxygen sensor housing 2. Multiple sliding rods 5 are slidably connected to the fixing ring 4. Multiple clamping plates 6 corresponding to the protective box 3 are slidably connected to each sliding rod 5. A drive rod 7 is fixedly connected to each sliding rod 5. A turntable 8 is rotatably connected inside the fixing ring 4. The turntable 8 has multiple arc-shaped holes 9 corresponding to the drive rods 7. Rotating the turntable... 8 allows the drive rod 7 to slide within the arc-shaped hole 9 of the turntable 8, causing the drive rod 7 to drive the slide rod 5 to slide. The slide rod 5 then drives the clamping plate 6 to move closer to the protective box 3 until the clamping plate 6 abuts against the protective box 3, which can quickly clamp and fix the protective box 3, so that the protective box 3 is stably installed in the oxygen sensor housing 2. This allows the chip body 1 to remain stable in the oxygen sensor housing 2, ensuring that the chip body 1 works normally in the oxygen sensor housing 2, with good performance and stability. Moreover, the entire installation process does not require auxiliary tools and can quickly install the chip body 1 between the chip body 1 and the oxygen sensor housing 2.

[0028] The chip body 1 is fixedly installed inside the protective box 3. The protective box 3 has an air inlet 10. In order to protect the ceramic chip from the influence of the external environment, such as dust, water vapor, mechanical impact, etc., a protective box 3 is installed outside the chip body 1. Through the air inlet 10 on the protective box 3, the gas to be detected can enter the sensor and contact the chip body 1, while preventing large particles of impurities from entering.

[0029] Multiple fixing rods 11 are fixedly connected inside the oxygen sensor housing 2. A fixing ring 4 is fixedly connected to the multiple fixing rods 11. A spring 12 is sleeved on each sliding rod 5. When the sliding rod 5 drives the clamping plate 6 to slide, it will compress the spring 12. When the protective box 3 is disassembled later, the spring 12 helps to quickly separate the clamping plate 6 from the protective box 3.

[0030] The two ends of the spring 12 are fixedly connected to the slide rod 5 and the outer wall of the fixed ring 4, respectively. The inner wall of the fixed ring 4 is provided with an annular groove corresponding to the turntable 8. Through the annular groove on the inner wall of the fixed ring 4, the turntable 8 can rotate stably within the fixed ring 4.

[0031] Each drive rod 7 is slidably connected in each arc-shaped hole 9. A ring 13 is fixedly connected to the inner wall of the oxygen sensor housing 2. A rotating groove 14 is opened on the ring 13. Multiple ratchet teeth 15 are fixedly connected to the inner wall of the rotating groove 14.

[0032] A telescopic rod 16 is fixedly connected to one side of the turntable 8. One end of the telescopic rod 16 passes through the rotating groove 14. A locking block 17 corresponding to the ratchet 15 is hinged on the telescopic rod 16. The telescopic rod 16 can extend and retract. When the telescopic rod 16 rotates, it can drive the turntable 8 to rotate.

[0033] An elastic sheet 18 is fixedly connected between the locking block 17 and the telescopic rod 16. A baffle 19 is fixedly connected to the telescopic rod 16. The elastic sheet 18 can be a sheet-like plate of elastic material. When the locking block 17 rotates, the elastic sheet 18 can deform. The baffle 19 can provide stable support for the locking block 17. The side of the baffle 19 away from the telescopic rod 16 abuts against the locking block 17. By rotating the telescopic rod 16, the turntable 8 can be driven to rotate. The telescopic rod 16 drives the locking block 17 on the surface to slide in the rotating groove 14 of the ring 13. The locking block 17 can automatically rotate towards the direction of the elastic sheet 18 and compress the elastic sheet 18, so that it can smoothly disengage from the ratchet 15. When the clamp 6 abuts against the outer wall of the protective box 3, the telescopic rod 16 is released, and the telescopic rod 16 can then support the locking block 17 with the baffle 19. When the latch 17 abuts against the ratchet 15, the telescopic rod 16 will not rotate in the opposite direction, thus automatically locking the turntable 8. This locks the drive rod 7, slide rod 5, and clamping plate 6, causing the protective box 3 to be tightly abutted by multiple clamping plates 6, thereby completing the quick installation. When disassembling the chip body 1, simply push the telescopic rod 16 into the oxygen sensor housing 2 to disengage the latch 17 from the rotating groove 14 of the ring 13, allowing the latch 17 to easily disengage from the ratchet 15. Then, the telescopic rod 16 can be rotated in the opposite direction to drive the turntable 8 to rotate in the opposite direction. With the help of the spring 12, the clamping plate 6 can quickly disengage from the protective box 3, thereby quickly removing the protective box 3 from the oxygen sensor housing 2, and thus allowing the chip body 1 to be quickly removed from the oxygen sensor housing 2.

[0034] In this invention, when installing the chip body 1 between the oxygen sensor housing 2, after installing the chip body 1 inside the protective box 3, the protective box 3 is inserted between the multiple clamping plates 6 of the oxygen sensor housing 2. Then, simply rotating the telescopic rod 16 will drive the turntable 8 to rotate. The turntable 8 allows the drive rod 7 to slide within the arc-shaped hole 9 of the turntable 8, causing the drive rod 7 to drive the slide rod 5 to slide. The slide rod 5 then drives the clamping plates 6 closer to the protective box 3 until the clamping plates 6 abut against the protective box 3. At the same time, with the support of the baffle 19 on the locking block 17, the locking block 17 abuts against the ratchet 15. This prevents the telescopic rod 16 from rotating in the opposite direction, thus automatically locking the turntable 8, which in turn locks the drive rod 7, slide rod 5, and clamping plate 6. This causes the protective box 3 to be tightly abutted by multiple clamping plates 6, thereby completing the quick installation. It can quickly clamp and fix the protective box 3, ensuring that the protective box 3 is stably installed inside the oxygen sensor housing 2. This, in turn, ensures that the chip body 1 remains stable inside the oxygen sensor housing 2, guaranteeing that the chip body 1 works normally inside the oxygen sensor housing 2. It has good performance and stability, and the entire installation process does not require auxiliary tools, allowing for quick installation between the chip body 1 and the oxygen sensor housing 2.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A narrow air intake sensitive oxygen sensor chip, comprising: The chip body (1) and the oxygen sensor housing (2) disposed outside the chip body (1) are characterized in that a protective box (3) for mounting the oxygen sensor chip is sleeved outside the chip body (1), and further include: A fixing ring (4) is fixedly connected inside the oxygen sensor housing (2). Multiple sliding rods (5) are slidably connected to the fixing ring (4). Multiple clamping plates (6) corresponding to the protective box (3) are slidably connected to each sliding rod (5). A drive rod (7) is fixedly connected to each sliding rod (5). A turntable (8) is rotatably connected inside the fixing ring (4). Multiple arc-shaped holes (9) corresponding to the drive rod (7) are opened on the turntable (8).

2. The narrow intake duct sensitive oxygen sensor chip according to claim 1, characterized in that, The chip body (1) is fixedly installed inside the protective box (3), and the protective box (3) is provided with an air inlet (10).

3. The narrow intake duct sensitive oxygen sensor chip according to claim 1, characterized in that, Multiple fixing rods (11) are fixedly connected inside the oxygen sensor housing (2), and the fixing ring (4) is fixedly connected to the multiple fixing rods (11). Each sliding rod (5) is fitted with a spring (12).

4. The narrow intake duct sensitive oxygen sensor chip according to claim 3, characterized in that, The two ends of the spring (12) are fixedly connected to the outer wall of the slide rod (5) and the fixing ring (4), respectively. The inner wall of the fixing ring (4) is provided with an annular groove corresponding to the turntable (8).

5. The narrow intake duct sensitive oxygen sensor chip according to claim 1, characterized in that, Each of the drive rods (7) is slidably connected in each arc-shaped hole (9). A ring (13) is fixedly connected to the inner wall of the oxygen sensor housing (2). A rotating groove (14) is provided on the ring (13). Multiple ratchet teeth (15) are fixedly connected to the inner wall of the rotating groove (14).

6. The narrow intake duct sensitive oxygen sensor chip according to claim 5, characterized in that, A telescopic rod (16) is fixedly connected to one side of the turntable (8). One end of the telescopic rod (16) passes through the rotating groove (14). A latch (17) corresponding to the ratchet (15) is hinged on the telescopic rod (16).

7. The narrow intake duct sensitive oxygen sensor chip according to claim 6, characterized in that, An elastic sheet (18) is fixedly connected between the locking block (17) and the telescopic rod (16), and a baffle (19) is fixedly connected to the telescopic rod (16).

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