Novel flange type oxygen sensor structure

Abstract

The utility model relates to the technical field of oxygen sensors, and discloses a novel flange type oxygen sensor structure. The novel flange type oxygen sensor structure comprises a columnar shell, a flange plate and an oxygen sensor, the flange plate is fixedly connected to the outer side of the columnar shell, and a fluororubber gasket is arranged on the right wall of an inner cavity of the columnar shell. The utility model has the advantages of preventing water vapor and impurities from entering the shell through a thread gap to damage the sensor, improving the disassembly and assembly speed of the flange plate and the machine body and the like, and solves the problems that when the machine body vibrates, the threaded connection between the sensor and the mounting frame is loosened, and then the water and impurities in the detected gas enter the shell through the loosened thread gap to cause damage to the sensor. And a plurality of bolts are needed for connection of a flange plate used for installing the sensor structure, so that the installation speed is relatively slow.

Description

Technical Field

[0001] This utility model relates to the field of oxygen sensor technology, specifically a novel flange-type oxygen sensor structure. Background Technology

[0002] A flange-type oxygen sensor is a device used to detect the oxygen concentration in an environment. It uses a flange as a mounting interface, allowing it to be securely installed on the wall of a pipe or equipment. The flange design provides a robust connection and is suitable for applications requiring high pressure, high temperature, or long-term stable operation under harsh conditions.

[0003] As proposed in announcement number CN215599125U, a novel flange-type oxygen sensor structure is presented. This device has the advantages of good sealing and reliable installation. However, the sensor and the mounting bracket are connected by threads. When the machine vibrates, the threaded connection between the sensor and the mounting bracket may loosen. Consequently, moisture and impurities in the detected gas can enter the housing through the loose thread gaps, damaging the sensor element inside the housing. Furthermore, the flange used to install the sensor structure requires multiple bolts for connection, resulting in a slow installation speed. Therefore, a novel flange-type oxygen sensor structure is proposed to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a novel flange-type oxygen sensor structure. This structure prevents the threaded connection between the sensor and the housing from loosening, avoids moisture and impurities from entering the housing through threaded gaps and damaging the sensor, and improves the speed of assembly and disassembly of the flange and the machine body. It solves the problems of loosening of the threaded connection between the sensor and the mounting bracket due to machine vibration, allowing moisture and impurities in the detected gas to enter the housing through the loosened threaded gaps and damage the sensor element inside the housing; and the slow installation speed caused by the flange requiring multiple bolts for mounting the sensor structure.

[0006] (II) Technical Solution

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A novel flange-type oxygen sensor structure includes a cylindrical shell, a flange, and an oxygen sensor. The flange is fixedly connected to the outer side of the cylindrical shell. A fluororubber gasket is provided on the right wall of the inner cavity of the cylindrical shell. An oxygen sensor is threadedly connected to the right wall of the inner cavity of the cylindrical shell, which is in close contact with the fluororubber gasket and extends to its right side. A clamping ring is fixedly connected to the outer side of the oxygen sensor. The inner wall of the cylindrical shell has cylindrical cavities arranged in a ring array and communicating with the interior. Each cylindrical cavity is provided with an elastic component extending into the cylindrical shell. The opposite side of each elastic component is provided with the same contact ring adapted to the clamping ring. A connecting component is provided on the left side of the flange, extending to its right side and arranged in a ring array. A transmission component is provided on the outer side of the flange, which meshes with the connecting component. A protective cover located on the left and outside of the transmission component is fixedly connected to the outer side of the cylindrical shell. A bolt head worm gear extending into the interior and meshing with the transmission component is rotatably connected to the front side of the protective cover.

[0008] The beneficial effects of this utility model are:

[0009] 1) This novel flange-type oxygen sensor structure has an oxygen sensor threadedly connected to a cylindrical housing, and the oxygen sensor is tightly fitted with a fluororubber gasket to seal its gaps. At the same time, the clamping ring on the outside of the oxygen sensor is tightly fitted with the contact ring, and the contact ring compresses the elastic component to cause elastic deformation. The elastic force of the elastic component keeps the contact ring and the clamping ring tightly fitted. This structure has the advantage that when the machine vibrates, the friction between the contact ring and the clamping ring can prevent the oxygen sensor from rotating due to vibration, thereby avoiding damage to the oxygen sensor caused by water vapor and impurities entering the cylindrical housing due to loosening of the oxygen sensor.

[0010] 2) This new flange-type oxygen sensor structure, by rotating the worm gear, causes the worm gear to mesh with the transmission component, which in turn drives the transmission component to rotate on the outside of the flange. Since the transmission component and the connecting component are both meshed, the connecting components are driven to rotate synchronously, which has the advantage of improving the speed of disassembly and assembly of the flange and the machine body.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the elastic component includes a spring and a slider. The interior of each cylindrical cavity is provided with a spring, and the left end of each spring is provided with a slider that is slidably connected to the cylindrical cavity. The opposite side of each slider extends into the interior of the cylindrical shell, and the opposite side of each slider is fixedly connected with the same contact ring.

[0013] The beneficial effects of adopting the above-mentioned further solution are that the oxygen sensor is threadedly connected to the cylindrical housing, and the oxygen sensor is tightly fitted to the fluororubber gasket to seal its gaps. At the same time, the clamping ring on the outside of the oxygen sensor is tightly fitted to the contact ring, and the contact ring and the slider compress the spring to cause elastic deformation. Then, the spring force makes the contact ring and the clamping ring fit tightly through the slider. When the machine vibrates, the friction between the contact ring and the clamping ring can prevent the oxygen sensor from rotating due to vibration, thereby preventing water vapor and impurities from entering the cylindrical housing and damaging the oxygen sensor due to loosening of the oxygen sensor.

[0014] Furthermore, the connecting assembly includes a lead screw and gears. The left side of the flange is rotatably connected to a lead screw that extends to its right side and is arranged in a circular array. Gears are fixedly connected to the outer side of the left end of the lead screw.

[0015] Furthermore, the transmission assembly includes a transmission ring, a gear ring, and a worm gear ring. The transmission ring is rotatably connected to the outer side of the flange. The gear ring, located on the left side of the flange and meshing with the gear, is fixedly connected to the inner side of the transmission ring. The worm gear ring, meshing with the bolt head worm, is fixedly connected to the outer side of the transmission ring.

[0016] The beneficial effect of adopting the above-mentioned further solution is that by rotating the bolt head worm, since the bolt head worm meshes with the worm wheel ring, it then drives the gear ring to rotate through the transmission ring. Since the gear ring meshes with the gear, it drives the lead screw to rotate synchronously, which can improve the disassembly and assembly speed of the flange and the outer flange of the machine body.

[0017] Furthermore, the right end of the cylindrical housing is threaded with a filter cover adapted to the oxygen sensor.

[0018] The beneficial effect of adopting the above-mentioned further solution is that the filter cover can intercept dust, particulate matter and other suspended matter in the air, preventing these impurities from entering the oxygen sensor input terminal and affecting the normal operation of the oxygen sensor sensitive element. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the appearance and structure of this utility model;

[0021] Figure 3 This is a left sectional view of the cylindrical cavity of this utility model;

[0022] Figure 4 This is an enlarged schematic diagram of the structure at point a of this utility model;

[0023] Figure 5 This is a left view of the transmission component structure of this utility model;

[0024] Figure 6 This is a right view of the protective cover structure of this utility model.

[0025] In the diagram: 1. Cylindrical housing; 2. Flange; 3. Oxygen sensor; 4. Fluororubber gasket; 5. Compression ring; 6. Cylindrical cavity; 7. Elastic component; 701. Spring; 702. Slider; 8. Contact ring; 9. Connecting component; 901. Lead screw; 902. Gear; 10. Transmission component; 101. Transmission ring; 102. Gear ring; 103. Worm gear ring; 11. Protective cover; 12. Plug head worm gear; 13. Filter cover. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1, by Figure 1-6 This invention discloses a novel flange-type oxygen sensor structure, comprising a cylindrical housing 1, a flange 2, and an oxygen sensor 3. The flange 2 is fixedly connected to the outer side of the cylindrical housing 1. A fluororubber gasket 4 is provided on the right wall of the inner cavity of the cylindrical housing 1. The oxygen sensor 3, which is tightly fitted to the fluororubber gasket 4 and extends to its right side, is threadedly connected to the right wall of the inner cavity of the cylindrical housing 1. A clamping ring 5 is fixedly connected to the outer side of the oxygen sensor 3. The inner wall of the cylindrical housing 1 has cylindrical cavities 6 arranged in a ring array and communicating with the interior. Each of the 6 is provided with an elastic component 7 extending into the cylindrical housing 1. The elastic component 7 has a contact ring 8 on the opposite side that is adapted to the clamping ring 5. The left side of the flange 2 is provided with a connecting component 9 extending to its right side and arranged in a ring array. The outer side of the flange 2 is provided with a transmission component 10 that meshes with the connecting component 9. The outer side of the cylindrical housing 1 is fixedly connected with a protective cover 11 located on the left and outside of the transmission component 10. The front side of the protective cover 11 is rotatably connected with a bolt head worm gear 12 extending into its interior and meshing with the transmission component 10.

[0028] The elastic component 7 includes a spring 701 and a slider 702. The interior of each cylindrical cavity 6 is provided with a spring 701. The left end of each spring 701 is provided with a slider 702 that is slidably connected to the cylindrical cavity 6. The opposite side of each slider 702 extends into the interior of the cylindrical housing 1. The opposite side of each slider 702 is fixedly connected to the same contact ring 8.

[0029] The oxygen sensor 3 is threadedly connected to the cylindrical housing 1, and the oxygen sensor 3 is tightly fitted with the fluororubber gasket 4 to seal its gaps. At the same time, the clamping ring 5 on the outside of the oxygen sensor 3 is tightly fitted with the contact ring 8, and the contact ring 8 and the slider 702 compress the spring 701 to cause elastic deformation. Then, the elastic force of the spring 701, through the slider 702, makes the contact ring 8 and the clamping ring 5 fit tightly. When the machine vibrates, the friction between the contact ring 8 and the clamping ring 5 can prevent the oxygen sensor 3 from rotating due to vibration, thereby preventing water vapor and impurities from entering the cylindrical housing 1 and damaging the oxygen sensor 3 due to loosening of the oxygen sensor 3.

[0030] The right end of the cylindrical housing 1 is threaded with a filter cover 13 that is compatible with the oxygen sensor 3;

[0031] The filter cover 13 can intercept dust, particulate matter and other suspended particles in the air, preventing these impurities from entering the input terminal of the oxygen sensor 3 and affecting the normal operation of the sensitive element of the oxygen sensor 3.

[0032] In Example 2, based on Example 1, the connecting assembly 9 includes a lead screw 901 and a gear 902. The left side of the flange 2 is rotatably connected to a lead screw 901 that extends to its right side and is arranged in a circular array. The outer side of the left end of the lead screw 901 is fixedly connected to a gear 902.

[0033] The transmission assembly 10 includes a transmission ring 101, a gear ring 102, and a worm gear ring 103. The transmission ring 101 is rotatably connected to the outer side of the flange 2. The gear ring 102, located on the left side of the flange 2 and meshing with the gear 902, is fixedly connected to the inner side of the transmission ring 101. The worm gear ring 103, which meshes with the bolt head worm 12, is fixedly connected to the outer side of the transmission ring 101.

[0034] By rotating the bolt head worm gear 12, since the bolt head worm gear 12 meshes with the worm wheel ring 103, it drives the gear ring 102 to rotate through the transmission ring 101. Since the gear ring 102 meshes with the gear 902, it drives the lead screw 901 to rotate synchronously, thereby increasing the speed of disassembly and assembly of the flange 2 and the outer flange of the machine body.

[0035] Working principle:

[0036] Implementation steps for the first innovation point:

[0037] Step 1: The oxygen sensor 3 is threadedly connected to the cylindrical housing 1, and the oxygen sensor 3 is tightly fitted to the fluororubber gasket 4 to seal the gaps.

[0038] Step 2: At the same time, the clamping ring 5 on the outside of the oxygen sensor 3 is tightly fitted with the contact ring 8, and the spring 701 is squeezed by the contact ring 8 and the slider 702 to cause elastic deformation. Then, the elastic force of the spring 701 is used to make the contact ring 8 and the clamping ring 5 fit tightly through the slider 702.

[0039] Step 3: When the machine vibrates, the friction between the contact ring 8 and the clamping ring 5 can prevent the oxygen sensor 3 from rotating due to vibration, thereby preventing water vapor and impurities from entering the cylindrical housing 1 and damaging the oxygen sensor 3 due to loosening of the oxygen sensor 3.

[0040] Implementation steps for the second innovation point:

[0041] Step 1: By rotating the worm gear 12, since the worm gear 12 meshes with the worm wheel ring 103, it then drives the gear ring 102 to rotate through the transmission ring 101;

[0042] Step 2: Since both the gear ring 102 and the gear 902 are meshed, the lead screw 901 is driven to rotate synchronously.

[0043] Step 3: This will increase the speed of disassembly and assembly of flange 2 and the outer flange of the machine body.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new flange type oxygen sensor structure comprising a cylindrical housing (1), a flange (2) and an oxygen sensor (3), characterized in that: The outer side of the cylindrical shell (1) is fixedly connected with a flange plate (2), the right wall of the inner cavity of the cylindrical shell (1) is provided with a fluorine rubber gasket (4), the right wall of the inner cavity of the cylindrical shell (1) is threadedly connected with an oxygen sensor (3) which is closely attached to the right side of the fluorine rubber gasket (4), the outer side of the oxygen sensor (3) is fixedly connected with a compression ring (5), the inner wall of the cylindrical shell (1) is provided with cylindrical cavities (6) which are arranged in an annular array and communicate with the inside, each of the cylindrical cavities (6) is provided with an elastic assembly (7) which extends into the cylindrical shell (1), the opposite side of the elastic assembly (7) is provided with a contact ring (8) which is the same and is adapted to the compression ring (5), the left side of the flange plate (2) is provided with linking assemblies (9) which extend to the right side thereof and are arranged in an annular array, the outer side of the flange plate (2) is provided with transmission assemblies (10) which are engaged with the linking assemblies (9), the outer side of the cylindrical shell (1) is fixedly connected with a protective cover (11) which is located on the left side and the outer side of the transmission assemblies (10), the front side of the protective cover (11) is rotatably connected with a stud worm (12) which extends into the inside thereof and is engaged with the transmission assemblies (10).

2. A novel flange type oxygen sensor structure according to claim 1, characterized in that: The elastic assembly (7) comprises a spring (701) and a sliding block (702), the inside of the cylindrical cavity (6) is provided with a spring (701), the left end of the spring (701) is provided with a sliding block (702) which is slidingly connected with the cylindrical cavity (6), the opposite side of the sliding block (702) extends into the inside of the cylindrical shell (1), and the opposite side of the sliding block (702) is fixedly connected with the same contact ring (8).

3. A novel flange type oxygen sensor structure according to claim 1, characterized in that: The linking assembly (9) comprises a lead screw (901) and a gear (902), the left side of the flange plate (2) is rotatably connected with lead screws (901) which extend to the right side thereof and are arranged in an annular array, and the outer side of the left end of each of the lead screws (901) is fixedly connected with a gear (902).

4. A novel flange type oxygen sensor structure according to claim 3, characterized in that: The transmission assembly (10) comprises a transmission ring (101), a gear ring (102) and a worm wheel ring (103), the outer side of the flange plate (2) is rotatably connected with a transmission ring (101), the inner side of the transmission ring (101) is fixedly connected with gear rings (102) which are located on the left side of the flange plate (2) and are engaged with the gears (902), and the outer side of the transmission ring (101) is fixedly connected with a worm wheel ring (103) which is engaged with the stud worm (12).

5. A novel flange type oxygen sensor structure according to claim 1, characterized in that: The right end of the cylindrical shell (1) is threadedly connected with a filter cover (13) which is adapted to the oxygen sensor (3).

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