Oxygen sensor protection cover

Abstract

The utility model discloses an oxygen sensor protective cover which comprises an oxygen sensor body and a cover body, the oxygen sensor body comprises a base, the base is fixedly connected with a threaded seat, the threaded seat is cylindrical, a probe is arranged on the threaded seat, the cover body is cylindrical, and the probe is arranged on the cover body. A mounting seat is fixedly connected to the edge of the end, close to the opening, of the cover body, a plurality of air holes are formed in the surface of the cover body, a heat insulation cover is mounted in the cover body and is cylindrical, a plurality of air holes are formed in the surface of the heat insulation cover, and a dustproof net is mounted in each air hole; a plurality of pieces of heat insulation cotton are arranged on the surface of the outer wall of the heat insulation cover. The oxygen sensor protective cover is good in heat insulation performance, capable of effectively blocking small particle impurities in external gas, good in air tightness and capable of avoiding the risk of air leakage at the connecting position of the oxygen sensor and the protective cover.

Description

Technical Field

[0001] The utility model belongs to the technical field of protective covers, in particular to an oxygen sensor protective cover. Background Art

[0002] An oxygen sensor is a device used to detect oxygen concentration. By measuring the oxygen content or partial pressure in a specific environment and providing real-time data, it is widely used in various fields, including the automotive industry, industrial control, medical equipment, environmental monitoring, food and beverage, and aerospace. An oxygen sensor protective cover is a structural shell that surrounds and protects the oxygen sensor probe. By providing multiple layers of protection, it enables the oxygen sensor to function properly in harsh environments, thereby extending its service life and ensuring its measurement accuracy and reliability.

[0003] At present, there are some protective cover structures for oxygen sensors on the market, such as a nitrogen oxygen sensor protective cover disclosed on the China Patent Network, with the announcement number CN216449531U. This bacterial culture bottle, however, has some defects and deficiencies that need to be improved: (1) Some existing oxygen sensor protective covers lack a heat insulation structure, making it difficult to effectively isolate heat, thereby causing the oxygen sensor to overheat, which in turn affects its service life and accuracy; (2) Existing oxygen sensor protective covers generally adopt a porous design to allow gas to flow freely while blocking external particulate matter and impurities, but the aperture design of some protective covers is not scientific enough. Although it can ensure smooth air flow, it is difficult to effectively block small particles, thereby affecting the measurement accuracy of the oxygen sensor; (3) Some existing oxygen sensor protective covers have poor air tightness. When installed on the oxygen sensor, a gap is easily formed between the protective cover and the oxygen sensor, resulting in the risk of air leakage at the connection part. Therefore, in response to the above problems, the oxygen sensor protective cover provided by the utility model is of great significance. Utility Model Content

[0004] The utility model provides an oxygen sensor protective cover, which can effectively isolate the external high temperature through the heat insulation cover and various heat insulation cottons, so as to reduce the heat load of the oxygen sensor, thereby avoiding overheating of the oxygen sensor and affecting its service life and accuracy; the various air holes on the surface of the cover body and the various air holes on the surface of the heat insulation cover can ensure smooth passage of air flow, and the dust-proof nets in the various air holes can effectively block small particulate impurities in the external gas, so as to prevent the measurement accuracy of the oxygen sensor from being affected; the sealing ring on the end face of the mounting seat can effectively fill the gap between the protective cover and the oxygen sensor, so as to improve the air tightness of the entire protective cover, thereby avoiding the risk of air leakage at the connection part. In summary, the problems in the background technology are solved.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model provides an oxygen sensor protective cover, comprising an oxygen sensor body and a cover body, the oxygen sensor body comprising a base, a threaded seat fixedly connected to the base, the threaded seat being cylindrical, and a probe being provided on the threaded seat, the cover body being cylindrical, a mounting seat being fixedly connected to the edge thereof near one end of the opening, and a plurality of air holes being provided on the surface of the cover body, a heat insulation cover being installed in the cover body, the heat insulation cover being cylindrical, a plurality of air vents being provided on the surface thereof, a dustproof net being installed in each of the air vents, and a plurality of heat insulation cottons being provided on the outer wall surface of the heat insulation cover.

[0007] Furthermore, the inner diameter of the cover body is equal to the outer diameter of the threaded seat, the inner wall surface near one end of the opening and the surface of the threaded seat are respectively engraved with matching internal and external threads, and the edge of the other end of the cover body is provided with a rounded corner.

[0008] Furthermore, the inner wall of the cover body is fixedly connected to a plurality of fixed blocks, and the fixed blocks are distributed in an equidistant annular array along the circumferential direction of the cover body, and a positioning groove is provided on the surface of each of the fixed blocks. The outer wall of the heat insulation cover is fixedly connected to a plurality of positioning blocks, and the positioning blocks and positioning grooves are both rectangular. The thickness of the positioning block is equal to the width of the positioning groove, and the center of each positioning block corresponds one-to-one to the center of each positioning groove.

[0009] Furthermore, a layer of buffer pad is provided on the outer wall of the end surface of the heat insulation cover away from the opening.

[0010] Furthermore, the air vents are in the shape of long strips and are distributed in an equidistant annular array along the circumference of the heat insulation cover. The heat insulation cotton is in the shape of long strips, and each of the heat insulation cottons is located between two adjacent air vents.

[0011] Furthermore, a sealing ring is provided on the end surface of the mounting seat.

[0012] Furthermore, a guide block is fixedly connected to the inner wall of the end surface of the cover body away from the opening. The guide block is annular, and the surface of the guide block is an inclined end surface.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) When in use, the oxygen sensor protective cover of the utility model can effectively isolate the external high temperature through the heat insulation cover and each heat insulation cotton, so as to reduce the heat load of the oxygen sensor, thereby preventing the oxygen sensor from overheating and affecting its service life and accuracy;

[0015] (2) When the oxygen sensor protective cover of the present invention is in use, the airflow can be ensured to pass smoothly through the various air holes on the surface of the cover body and the various air vents on the surface of the heat insulation cover, and the dustproof nets in the various air vents can effectively block small particles of impurities in the external gas, thereby preventing the measurement accuracy of the oxygen sensor from being affected;

[0016] (3) When the oxygen sensor protective cover in the present invention is in use, the gap between the protective cover and the oxygen sensor can be effectively filled by the sealing ring on the end face of the mounting seat, so as to improve the air tightness of the entire protective cover, thereby avoiding the risk of air leakage at the connection part.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a structural schematic diagram of an oxygen sensor protective cover of the present utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the oxygen sensor body of the utility model;

[0021] Figure 3 This is a schematic structural diagram of the cover body in the present invention;

[0022] Figure 4 This is a front cross-sectional view of the cover body of the present invention;

[0023] Figure 5 It is a side view of the cover body of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the heat insulation cover in the utility model.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 1. Oxygen sensor body; 2. Cover; 3. Base; 4. Threaded seat; 5. Probe; 6. Mounting seat; 7. Air vent; 8. Heat shield; 9. Air vent; 10. Dust screen; 11. Heat insulation cotton; 12. Fixing block; 13. Positioning slot; 14. Positioning block; 15. Cushion; 16. Sealing ring; 17. Guide block. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that terms such as "relative", "one end", "inside", "lateral", "end", "two ends", "both sides", "front", "one end face", "the other end face" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] See also Figure 1-6 As shown, an oxygen sensor protective cover of the present invention includes an oxygen sensor body 1 and a cover body 2. The oxygen sensor body 1 includes a base 3, a threaded seat 4 is fixedly connected to the base 3, the threaded seat 4 is cylindrical, and a probe 5 is provided on the threaded seat 4. The cover body 2 is cylindrical, and a mounting seat 6 is fixedly connected to the edge near one end of the opening, and a plurality of air holes 7 are opened on the surface of the cover body 2. A heat insulation cover 8 is installed in the cover body 2, and the heat insulation cover 8 is cylindrical, and a plurality of air holes 9 are opened on its surface, so that external gas can pass through. The oxygen enters the cover body 2 through the various air holes 7 on the surface of the cover body 2 and contacts the probe 5 through the various air holes 9 on the surface of the heat insulation cover 8, so as to monitor the oxygen concentration in the air or gas mixture in real time through the oxygen sensor body 1. A dustproof net 10 is installed in each air hole 9. When the gas enters through the various air holes 9, the dustproof net 10 can effectively block small particulate impurities in the gas to prevent the measurement accuracy of the oxygen sensor from being affected. A plurality of heat insulation cottons 11 are provided on the outer wall surface of the heat insulation cover 8.

[0030] Among them, the inner diameter of the cover body 2 is equal to the outer diameter of the threaded seat 4, and the inner wall surface near one end of the opening and the surface of the threaded seat 4 are respectively engraved with internal and external threads that match each other. The cover body 2 can be fixed to the threaded seat 4 together with the mounting seat 6 by a threaded connection. At this time, the cover body 2 can cover the outside of the probe 5 to protect the oxygen sensor body 1. The edge of the other end of the cover body 2 is provided with a rounded corner. The rounded corner can reduce the external force on the edge of the cover body 2 to avoid wear at its edge, thereby improving the durability of the cover body 2 and extending its service life.

[0031] Among them, the inner wall of the cover body 2 is fixedly connected with a plurality of fixing blocks 12, and the fixing blocks 12 are distributed in an equidistant annular array along the circumferential direction of the cover body 2, and a positioning groove 13 is opened on the surface of each fixing block 12, and the outer wall of the heat insulation cover 8 is fixedly connected with a plurality of positioning blocks 14, the positioning blocks 14 and the positioning grooves 13 are both rectangular, the thickness of the positioning blocks 14 is equal to the groove width of the positioning grooves 13, and the center of each positioning block 14 corresponds one-to-one with the center of each positioning groove 13, and the positioning blocks 14 can be aligned and inserted into the corresponding positioning grooves 13. At this time, the mutual cooperation between the positioning blocks 14 and the positioning grooves 13 can play a positioning role, so that the heat insulation cover 8 can be installed and fixed in the cover body 2 by plugging, and the heat insulation cover 8 can isolate part of the external heat to achieve a heat insulation effect. The heat insulation cover 8 can be removed from the cover body 2 by pulling out the positioning blocks 14, so that the heat insulation cover 8 can be regularly maintained and replaced.

[0032] Among them, a layer of buffer pad 15 is provided on the outer wall of the end face of the heat insulation cover 8 away from the opening end. The buffer pad 15 can be a round rubber pad and is fixed to the heat insulation cover 8 by glue or other means. When the heat insulation cover 8 is installed in the cover body 2, the buffer pad 15 can separate the heat insulation cover 8 from the end face of the cover body 2 to play a buffering protection role, thereby avoiding direct contact between the heat insulation cover 8 and the cover body 2 to cause collision and wear.

[0033] Among them, the air vents 9 are long strips and are distributed in an equidistant annular array along the circumferential direction of the heat insulation cover 8. The heat insulation cotton 11 is long strips, and each heat insulation cotton 11 is located between two adjacent air vents 9. The heat insulation cotton 11 has strong heat insulation performance and can be fixed to the surface of the heat insulation cover 8 by glue or other means. The heat insulation effect of the protective cover can be further improved by each heat insulation cotton 11, so as to reduce the heat load of the oxygen sensor body 1, thereby avoiding overheating of the oxygen sensor and affecting its service life and accuracy.

[0034] Among them, a sealing ring 16 is provided on the end face of the mounting seat 6. The sealing ring 16 can be an annular rubber ring and is fixed to the end face of the mounting seat 6 by glue or other means. When the cover body 2 is installed on the oxygen sensor body 1, the sealing ring 16 can be attached to the surface of the base 3. At this time, the sealing ring 16 can effectively fill the gap between the cover body 2 and the oxygen sensor body 1, so as to improve the airtightness of the protective cover, thereby avoiding the risk of air leakage at the connection part.

[0035] Among them, a guide block 17 is fixedly connected to the inner wall of the end face of the cover body 2 away from the opening end. The guide block 17 is annular, and the surface of the guide block 17 is an inclined end face. When the gas enters the cover body 2 through each air vent 7, the guide block 17 can play a guiding role so that the airflow is evenly distributed in the cover body 2, thereby preventing the oxygen sensor body 1 from responding slowly or measuring inaccurate data.

[0036] The circuits, electronic components and chip modules involved in the present invention are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0037] The standard parts used in the application documents can all be purchased on the market. All components in this application document can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology. The electrical components appearing in this article are all connected to the external main controller and 220V AC power, and the main controller can be a conventional known device that controls the LED lamp body, etc.

[0038] The working principle of this utility model is:

[0039] When the present invention is in use, the cover body 2 can be fixed together with the mounting base 6 on the threaded seat 4 by means of a threaded connection. At this time, the cover body 2 can cover the outside of the probe 5 to protect the oxygen sensor body 1. A plurality of air holes 7 are provided on the surface of the cover body 2, and a heat insulation cover 8 is installed inside the cover body 2. A plurality of air holes 9 are provided on the surface of the heat insulation cover 8. External gas can enter the cover body 2 through each air hole 7 and contact the probe 5 through each air hole 9, so that the oxygen concentration in the air or gas mixture can be monitored in real time through the oxygen sensor body 1. The heat insulation cover 8 can isolate part of the external heat to achieve a heat insulation effect. The outer wall surface of the heat insulation cover 8 is provided with a plurality of heat insulation cottons 11. The thermal cotton 11 can further improve the thermal insulation effect of the protective cover, so as to reduce the thermal load of the oxygen sensor body 1, thereby preventing the oxygen sensor from overheating and affecting its service life and accuracy. A dustproof net 10 is installed in each air vent 9. When the gas enters through each air vent 9, the dustproof net 10 can effectively block small particulate impurities in the gas to prevent the measurement accuracy of the oxygen sensor from being affected. A sealing ring 16 is provided on the end face of the mounting base 6. When the cover body 2 is installed on the oxygen sensor body 1, the sealing ring 16 can be attached to the surface of the base 3. At this time, the sealing ring 16 can effectively fill the gap between the cover body 2 and the oxygen sensor body 1 to improve the airtightness of the protective cover, thereby avoiding the risk of air leakage at the connection part.

[0040] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An oxygen sensor protective cover, characterized in that: The oxygen sensor comprises an oxygen sensor body and a cover body, wherein the oxygen sensor body comprises a base, a threaded seat is fixedly connected to the base, the threaded seat is cylindrical, and a probe is provided on the threaded seat, the cover body is cylindrical, a mounting seat is fixedly connected to the edge near one end of the opening, and a plurality of air holes are provided on the surface of the cover body, a heat insulation cover is installed in the cover body, the heat insulation cover is cylindrical, and a plurality of air holes are provided on the surface, each of the air holes is installed with a dustproof net, and a plurality of heat insulation cottons are provided on the outer wall surface of the heat insulation cover.

2. The oxygen sensor protective cover according to claim 1, characterized in that: The inner diameter of the cover body is equal to the outer diameter of the threaded seat, and the inner wall surface near one end of the opening and the surface of the threaded seat are respectively engraved with matching internal and external threads, and the edge of the other end of the cover body is provided with a rounded corner.

3. The oxygen sensor protective cover according to claim 1, characterized in that: The inner wall of the cover body is fixedly connected to a plurality of fixing blocks, and the fixing blocks are distributed in an equidistant annular array along the circumferential direction of the cover body, and a positioning groove is provided on the surface of each fixing block. The outer wall of the heat insulation cover is fixedly connected to a plurality of positioning blocks, and the positioning blocks and positioning grooves are both rectangular. The thickness of the positioning block is equal to the width of the positioning groove, and the center of each positioning block corresponds one-to-one to the center of each positioning groove.

4. The oxygen sensor protective cover according to claim 1, characterized in that: A layer of buffer pad is provided on the outer wall of the end surface of the heat insulation cover away from the opening.

5. The oxygen sensor protective cover according to claim 1, characterized in that: The air vents are in the shape of long strips and are distributed in an equidistant annular array along the circumference of the heat insulation cover. The heat insulation cotton is in the shape of long strips, and each of the heat insulation cottons is located between two adjacent air vents.

6. The oxygen sensor protective cover according to claim 1, characterized in that: The end surface of the mounting seat is provided with a sealing ring.

7. The oxygen sensor protective cover according to claim 1, characterized in that: A guide block is fixedly connected to the inner wall of the end surface of the cover body away from the opening. The guide block is annular, and the surface of the guide block is an inclined end surface.

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