Quick-response oxygen sensor

Abstract

The utility model discloses a quick-response oxygen sensor, and relates to the technical field of oxygen sensors. A quick-response oxygen sensor comprises a shell, penetrating holes are symmetrically formed in the shell, a fixing plate is fixedly connected to the interior of the shell, an extrusion rod is slidably connected to the fixing plate, and an extension spring is fixedly connected to the fixing plate; the extrusion rod is provided with a first diagonal plane and a second diagonal plane, and the inclined plane of the first diagonal plane is smaller than that of the second diagonal plane; the second diagonal plane pushes the limiting ball upwards, when the limiting ball reaches the position of the through hole, one part of the limiting ball penetrates through the through hole to be in contact with the limiting diagonal plane on the automobile mounting seat and is limited by the limiting diagonal plane at the same time, and the shell and the whole oxygen sensor of the shell are clamped in the automobile mounting seat. Therefore, quick response can be realized during disassembly and assembly.

Description

Technical Field

[0001] This invention belongs to the field of oxygen sensor technology, specifically, it relates to a fast-response oxygen sensor. Background Technology

[0002] Oxygen sensors are widely used in modern industry and automobiles. In automotive engine control systems, oxygen sensors monitor the oxygen content in exhaust gas, providing crucial information to the engine control unit (ECU) to achieve precise fuel injection control and optimized combustion, thereby improving fuel economy and reducing exhaust emissions. In industrial combustion systems, such as boilers and kilns, oxygen sensors help monitor the oxygen concentration in the combustion environment, ensuring combustion efficiency and safety.

[0003] With the increasing level of industrial automation and the growing number of cars, higher demands are placed on the convenience and efficiency of connecting oxygen sensors to external devices. On the automotive production line, a fast and reliable connection method can improve assembly speed and reduce production time. In after-sales maintenance and equipment upkeep, technicians need to be able to quickly connect and disconnect oxygen sensors from testing instruments or control systems in order to perform fault diagnosis and replacement. In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this invention is to overcome the shortcomings of the prior art and provide a fast-response oxygen sensor that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: a fast-response oxygen sensor, including a housing with symmetrically symmetrically perforated holes; a fixing plate fixedly connected inside the housing; a pressing rod slidably connected to the fixing plate; and a tension spring fixedly connected to the fixing plate; the pressing rod has a first oblique surface and a second oblique surface, the inclination of the first oblique surface being smaller than that of the second oblique surface; a limiting ball, which is rolledly connected to the second oblique surface, the diameter of the limiting ball being larger than the diameter of the perforation; and an automotive mounting bracket, which is inserted into the housing, and the automotive mounting bracket is a "convex" shape that is narrower at the top and wider at the bottom. The vehicle mounting bracket has a limiting bevel. An oxygen sensor is slidably connected to the housing and connected to a pressure rod. When the oxygen sensor is held and the pressure rod is pushed down inside the housing, the first and second bevels move down simultaneously. A limiting ball on the second bevel approaches the center of the first and second bevels and disengages from the perforation. After the housing reaches the inside of the vehicle mounting bracket, the oxygen sensor is released, and the tension spring pushes the pressure rod closer to the oxygen sensor. The second bevel compresses the limiting ball, which rolls through the perforation on the limiting bevel, connecting the housing and the vehicle mounting bracket.

[0006] Furthermore, an upper protective shell is fixedly connected to the outer shell, and the upper protective shell is wider at the top and narrower at the bottom.

[0007] Furthermore, the center of the upper protective shell and the outer shell is hollowed out, and movable compartments are opened inside the upper protective shell and the outer shell.

[0008] Furthermore, the upper protective shell has a first groove and a second groove, the first groove penetrating the upper part of the upper protective shell, and the second groove being formed on the first groove.

[0009] Furthermore, a pin is fixedly connected to the oxygen sensor, and the pin corresponds to the second groove.

[0010] Furthermore, both the compression rod and the limit ball are made of hardened steel.

[0011] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The second oblique surface of the present invention pushes the limiting ball upward. When it reaches the position of the perforation, a part of the limiting ball passes through the perforation and comes into contact with the limiting oblique surface on the car mounting seat. At the same time, it is restricted by the limiting oblique surface, which locks the entire housing and its oxygen sensor inside the car mounting seat so that it can respond quickly when disassembling and installing.

[0012] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0013] In the attached diagram:

[0014] Figure 1 This is a front view schematic diagram of a fast-response oxygen sensor proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the outer shell and upper protective shell structure of a fast-response oxygen sensor proposed in this utility model;

[0016] Figure 3 This is a schematic diagram of the housing and automotive mounting bracket in a fast-response oxygen sensor proposed in this utility model;

[0017] Figure 4 This is a cross-sectional view of the housing structure of a fast-response oxygen sensor proposed in this utility model.

[0018] Figure 5 This is a schematic diagram of the limiting ball and automotive mounting base in a fast-response oxygen sensor proposed in this utility model.

[0019] In the diagram: 1. Outer shell; 11. Upper protective shell; 12. First groove; 13. Second groove; 14. Movable compartment; 15. Perforation; 2. Extrusion rod; 21. Fixing plate; 22. Tension spring; 23. First beveled surface; 24. Second beveled surface; 3. Limiting ball; 4. Automotive mounting bracket; 41. Limiting beveled surface; 5. Oxygen sensor; 51. Pin. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0021] Example: Refer to Figures 1-5 A fast-response oxygen sensor includes a housing 1 with symmetrically symmetrically perforated holes 15. A fixing plate 21 is fixedly connected inside the housing 1, and a compression rod 2 is slidably connected to the fixing plate 21. A tension spring 22 is fixedly connected to the fixing plate 21. The compression rod 2 has a first oblique surface 23 and a second oblique surface 24, the inclination of the first oblique surface 23 being smaller than that of the second oblique surface 24. A limiting ball 3 is rolled on the second oblique surface 24, and the diameter of the limiting ball 3 is larger than the diameter of the perforated holes 15. An automotive mounting base 4 is inserted into the housing 1 and is a U-shaped structure, narrower at the top and wider at the bottom. The automotive mounting base 4 has a limiting oblique surface. Surface 41; An oxygen sensor 5 is slidably connected to the outer shell 1, and the oxygen sensor 5 is connected to the extrusion rod 2; When the hand-held oxygen sensor 5 pushes the extrusion rod 2 to move downward inside the outer shell 1, the first oblique surface 23 and the second oblique surface 24 move downward at the same time, and the limiting ball 3 approaches the center of the first oblique surface 23 and the second oblique surface 24 on the second oblique surface 24, and the limiting ball 3 disengages from the perforation 15; After the outer shell 1 reaches the inside of the car mounting seat 4, the oxygen sensor 5 is released, the tension spring 22 pushes the extrusion rod 2 to approach the oxygen sensor 5, and the second oblique surface 24 squeezes the limiting ball 3 to roll on the limiting oblique surface 41 through the perforation 15, connecting the outer shell 1 and the car mounting seat 4.

[0022] An upper protective shell 11 is fixedly connected to the outer shell 1. The upper protective shell 11 is wider at the top and narrower at the bottom.

[0023] The center of the upper protective shell 11 and the outer shell 1 is hollowed out, and the upper protective shell 11 and the outer shell 1 have movable compartments 14 inside.

[0024] The upper protective shell 11 has a first groove 12 and a second groove 13. The first groove 12 penetrates the upper part of the upper protective shell 11, and the second groove 13 is formed on the first groove 12.

[0025] A pin 51 is fixedly connected to the oxygen sensor 5, and the pin 51 corresponds to the second groove 13.

[0026] Both the compression rod 2 and the limiting ball 3 are made of hard steel.

[0027] In use, pressing the oxygen sensor 5 causes the pin 51 on the oxygen sensor 5 to enter through the first groove 12 on the upper protective shell 11 and reach the interior of the second groove 13, thus connecting the oxygen sensor 5 to the shell 1. Next, when installing the oxygen sensor 5 and the connecting shell 1 onto the automotive mounting bracket 4, gently pushing the oxygen sensor 5 causes the compression rod 2 inside the shell 1 to move downwards. The compression rod 2 compresses the tension spring 22, and the fixing plate 21 is fixedly connected to the shell 1, causing the tension spring 22 to be compressed on the fixing plate 21. Simultaneously, the first and second beveled surfaces 23 and 24 at the bottom of the compression rod 2 move downwards at the same time. The limiting ball 3 disengages from the perforation 15 and reaches the center of the first bevel 23 and the second bevel 24. After placing the bottom of the housing 1 inside the car mounting bracket 4 and releasing the oxygen sensor 5, the compression rod 2 moves upward under the action of the tension spring 22. The second bevel 24 pushes the limiting ball 3 upward. When it reaches the position of the perforation 15, a part of the limiting ball 3 passes through the perforation 15 and comes into contact with the limiting bevel 41 on the car mounting bracket 4. At the same time, it is restricted by the limiting bevel 41, which locks the housing 1 and its oxygen sensor 5 inside the car mounting bracket 4 so that it can respond quickly when disassembling and installing.

[0028] The second oblique surface 24 of this utility model pushes the limiting ball 3 upward. When it reaches the position of the through hole 15, a part of the limiting ball 3 passes through the through hole 15 and wants to contact the limiting oblique surface 41 on the car mounting seat 4. At the same time, it is restricted by the limiting oblique surface 41, which locks the entire housing 1 and its oxygen sensor 5 inside the car mounting seat 4 so that it can respond quickly when disassembling and installing.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. A fast-response oxygen sensor, characterized in that, Includes an outer shell (1), on which symmetrical perforations (15) are provided, and a fixing plate (21) is fixedly connected inside the outer shell (1), and a pressing rod (2) is slidably connected on the fixing plate (21), and a tension spring (22) is fixedly connected on the fixing plate (21); The extrusion rod (2) has a first oblique surface (23) and a second oblique surface (24), and the inclination of the first oblique surface (23) is smaller than that of the second oblique surface (24); A limiting ball (3) is rolled on the second oblique surface (24), and the diameter of the limiting ball (3) is larger than the opening diameter of the perforation (15); The car mounting bracket (4) is inserted into the outer shell (1). The car mounting bracket (4) is a "convex" shape that is narrow at the top and wide at the bottom. The car mounting bracket (4) has a limiting oblique cut surface (41). An oxygen sensor (5) is slidably connected to the outer shell (1), and the oxygen sensor (5) is connected to the extrusion rod (2); When the oxygen sensor (5) is held and the squeezing rod (2) is pushed down inside the housing (1), the first oblique surface (23) and the second oblique surface (24) move down at the same time, and the limiting ball (3) is close to the center of the first oblique surface (23) and the second oblique surface (24) on the second oblique surface (24), and the limiting ball (3) disengages from the perforation (15); After the housing (1) reaches the interior of the vehicle mounting base (4), the oxygen sensor (5) is released, the tension spring (22) pushes the compression rod (2) closer to the oxygen sensor (5), and the second chamfer (24) compresses the limiting ball (3) through the perforation (15) and rolls on the limiting chamfer (41) to connect the housing (1) and the vehicle mounting base (4).

2. The fast-response oxygen sensor according to claim 1, characterized in that, An upper protective shell (11) is fixedly connected to the outer shell (1), and the upper protective shell (11) is wider at the top and narrower at the bottom.

3. The fast-response oxygen sensor according to claim 2, characterized in that, The center of the upper protective shell (11) and the outer shell (1) is hollowed out, and the upper protective shell (11) and the outer shell (1) have an active compartment (14) inside.

4. The fast-response oxygen sensor according to claim 2, characterized in that, The upper protective shell (11) has a first groove (12) and a second groove (13). The first groove (12) penetrates the upper part of the upper protective shell (11), and the second groove (13) is formed on the first groove (12).

5. The fast-response oxygen sensor according to claim 1, characterized in that, A pin (51) is fixedly connected to the oxygen sensor (5), and the pin (51) corresponds to the second groove (13).

6. The fast-response oxygen sensor according to claim 1, characterized in that, Both the extrusion rod (2) and the limiting ball (3) are made of hard steel.

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