Integral type anti-falling probe of automobile oxygen sensor

Abstract

The utility model discloses an integral type anti-falling probe of an automobile oxygen sensor, which comprises an exhaust pipe, a mounting seat is screwed and mounted on the outer wall of the exhaust pipe through a plurality of fastening bolts, and a fixing component is mounted on the inner wall of the mounting seat. According to the integral type anti-falling probe of the automobile oxygen sensor, the hexagonal base drives the connecting base, the sealing ring and the inductive probe to move, the inductive probe enters an exhaust pipe through the passing opening, the good sealing effect and anti-falling performance are achieved, and although an automobile jolts and shakes after being used for a long time, due to the fact that the hexagonal base is limited and fixed, the automobile is prevented from falling off. The hexagonal base cannot drive the connecting base and the screw groove to rotate, the threaded connection state of the thread line and the screw groove is stable, the spring abuts against the anti-disengaging column to enter the inner wall of the positioning opening for positioning and disengaging prevention under the elastic effect, the limiting block enters the limiting groove in the left side for limiting and preventing the cross block from moving, and therefore the stability degree is high after the sensor is installed; and the falling condition is avoided.

Description

Technical Field

[0001] This utility model relates to the field of automotive oxygen sensor technology, specifically an integrated anti-detachment probe for automotive oxygen sensors. Background Technology

[0002] The automotive oxygen sensor is a key feedback sensor in the electronic fuel injection engine control system. It is a crucial component for controlling vehicle exhaust emissions, reducing vehicle pollution, and improving the quality of fuel combustion in automotive engines. Oxygen sensors are installed on the engine exhaust pipe. They utilize ceramic sensitive elements to measure the oxygen potential in various heating furnaces or exhaust pipes, and calculate the corresponding oxygen concentration based on the principle of chemical equilibrium. This allows for the monitoring and control of the air-fuel ratio in the furnace, ensuring product quality and compliance with exhaust emission standards. Oxygen sensors are widely used in atmosphere control of various coal-fired, oil-fired, and gas-fired furnaces. In the feedback control system of electronic fuel injection devices, oxygen sensors detect the oxygen concentration and air-fuel ratio in the exhaust, monitor the combustion at the theoretical air-fuel ratio (14.7:1) within the engine, and transmit feedback signals to the computer.

[0003] The aforementioned technologies have certain shortcomings in their use: automotive oxygen sensors mainly consist of components such as a steel housing, a sensing probe, wiring terminals, a sheath, and a protective tube. During installation, the wiring terminals need to be plugged into the wiring port, and the steel housing is used to drive the sensing probe into the exhaust pipe and screw it in for fixation. However, due to the bumps and vibrations during long-term driving, the screwed connection of the steel housing may loosen.

[0004] Therefore, this utility model provides an integrated anti-detachment probe for automotive oxygen sensors to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an integrated anti-detachment probe for automotive oxygen sensors, solving the aforementioned problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: an integrated anti-detachment probe for an automotive oxygen sensor, comprising an exhaust pipe, wherein a mounting base is screwed onto the outer wall of the exhaust pipe by a plurality of fastening bolts, and a fixing component is installed on the inner wall of the mounting base;

[0007] The fixing assembly includes a connecting seat, a sensing probe fixedly installed on the left side wall of the connecting seat, a threaded groove on the side wall of the mounting seat, a sealing groove on the inner wall of the mounting seat, and through openings on the side walls of both the mounting seat and the exhaust pipe. A sealing ring is fixedly installed on the left side wall of the connecting seat, a threaded wire is provided on the left side of the outer wall of the connecting seat, and a hexagonal seat is fixedly installed on the outer wall of the connecting seat. A cross groove is provided on the top wall of the hexagonal seat, a spring is fixedly installed on the inner side wall of the cross groove, a cross block is slidably installed on the inner wall of the cross groove, an anti-detachment post is fixedly connected to the left side wall of the cross block, an opening is provided on the left side wall of the hexagonal seat corresponding to the position of the anti-detachment post, and positioning openings are provided on the side wall of the mounting seat corresponding to the position of the opening. A sliding block is fixedly installed on the top wall of the cross block, an installation groove is provided on the left side of the rear wall of the sliding block, a limit block is rotatably installed on the inner wall of the installation groove, and limit grooves are provided on both the left and right sides of the top wall of the hexagonal seat.

[0008] With the above technical solution and the setting of the fixing components, the stability of the sensor after installation can be guaranteed to prevent it from falling off.

[0009] Furthermore, the port on the mounting base is matched and connected to the port on the exhaust pipe, the inner wall of the port is in contact with the outer wall of the sensing probe, and the left end of the sensing probe extends into the inner cavity of the exhaust pipe.

[0010] Using the above technical solution, the sensing probe can penetrate deep into the exhaust pipe and detect the gas flowing inside the exhaust pipe.

[0011] Furthermore, the outer wall of the sealing ring fits against the inner wall of the sealing groove, and the outer wall of the connecting seat is fixed to the threaded groove by a threaded connection.

[0012] Through the above technical solution, the outer wall of the sealing ring fits into the inner wall of the sealing groove, resulting in a good sealing effect.

[0013] Furthermore, the right side wall of the cross block is fixedly connected to the spring, the position of the positioning port matches the through port, and the outer wall of the anti-detachment column fits against the inner wall of the through port and the positioning port.

[0014] With the above technical solution, after the anti-detachment column enters the through-hole and positioning hole, it can prevent the hexagonal seat from rotating.

[0015] Furthermore, the outer wall of the limiting block is fitted with the inner wall of the limiting groove located on the left side, and a groove is provided on the rear wall of the limiting block.

[0016] The above technical solution makes it easier for staff to operate the limiting block.

[0017] Furthermore, a steel housing is fixedly installed on the right wall of the connector, and a connection terminal is installed on the side wall of the steel housing via a data connection cable.

[0018] Through the above technical solution, the connection terminal drives the data connection cable to be plugged into the connection port.

[0019] Beneficial effects

[0020] This invention provides an integrated anti-detachment probe for automotive oxygen sensors. Compared with existing technologies, it has the following advantages:

[0021] (1) The integrated anti-detachment probe of the automotive oxygen sensor moves the connecting seat, sealing ring, and sensing probe through the hexagonal seat. The sensing probe enters the exhaust pipe through the port, and the sealing ring enters the sealing groove. The rotation of the hexagonal seat drives the connecting seat and the threaded wire to gradually screw and fix with the threaded groove. The groove drives the limiting block to rotate and disengage from the contact with the limiting groove on the right. The spring pushes the cross block to slide in the inner wall of the cross groove, causing the sliding block and the limiting block to slide to the left. The cross block drives the anti-detachment column to enter the inner wall of the positioning port after passing through the through port and engage with the limiting. The flipping limiting block rotates in the inner wall of the mounting groove and enters the positioning groove. The sensor is secured in the inner wall of the limiting groove on the left side, and the connecting terminal is inserted into the connecting port. After the sensor is installed, it has a good sealing effect and anti-detachment properties. Even when the vehicle is bumpy and shaken during long-term use, the hexagonal seat will not drive the connecting seat and screw groove to rotate due to the hexagonal seat being fixed. The threaded connection of the thread and screw groove is stable. Under the elastic action of the spring, the anti-detachment post is pressed against the inner wall of the positioning port to position and prevent detachment. The limiting block enters the limiting groove on the left side to limit and prevent the cross block from moving, so that the sensor is highly stable after installation and avoids falling off. Attached Figure Description

[0022] Figure 1 This is a front view of the external structure of this utility model;

[0023] Figure 2 This is a front view of the internal structure of this utility model;

[0024] Figure 3 This is an exploded view of the internal structure of the fixing component of this utility model;

[0025] Figure 4 This is an exploded left view of the internal structure of the fixing component of this utility model;

[0026] Figure 5 This is a utility model Figure 4 Enlarged view of the structure at point A;

[0027] Figure 6 This is a schematic diagram of the fixed component assembly of this utility model.

[0028] In the diagram: 1. Exhaust pipe; 2. Mounting base; 3. Connecting terminal; 4. Data connection cable; 5. Steel housing; 6. Fixing component; 61. Sensor probe; 62. Sealing ring; 63. Threaded wire; 64. Through port; 65. Sealing groove; 66. Threaded groove; 67. Connecting base; 68. Hexagonal base; 69. Cross groove; 610. Spring; 611. Cross block; 612. Sliding block; 613. Anti-detachment column; 614. Positioning port; 615. Mounting groove; 616. Limiting block; 617. Limiting groove; 618. Through port. Detailed Implementation

[0029] 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.

[0030] Example 1:

[0031] Please see Figure 1-6 An integrated anti-detachment probe for an automotive oxygen sensor includes an exhaust pipe 1, a mounting base 2 is screwed onto the outer wall of the exhaust pipe 1 by a number of fastening bolts, and a fixing component 6 is installed on the inner wall of the mounting base 2.

[0032] The fixing component 6 includes a connecting seat 67, on which a sensor probe 61 is fixedly installed on the left side wall. A threaded groove 66 is formed on the side wall of the mounting seat 2, and a sealing groove 65 is formed on the inner wall of the mounting seat 2. Both the mounting seat 2 and the exhaust pipe 1 have through-holes 64 on their side walls. A sealing ring 62 is fixedly installed on the left side wall of the connecting seat 67. A threaded wire 63 is formed on the left side of the outer wall of the connecting seat 67. A hexagonal seat 68 is fixedly installed on the outer wall of the connecting seat 67. A cross groove 69 is formed on the top wall of the hexagonal seat 68, and a spring 610 is fixedly installed on the inner side wall of the cross groove 69. A cross block 611 is slidably installed on the inner wall of 69. An anti-detachment column 613 is fixedly connected to the left side wall of the cross block 611. An opening 618 is opened on the left side wall of the hexagonal seat 68 at the position corresponding to the anti-detachment column 613. A positioning opening 614 is opened on the side wall of the mounting seat 2 at the position corresponding to the opening 618. A sliding block 612 is fixedly installed on the top wall of the cross block 611. An installation groove 615 is opened on the left side of the rear wall of the sliding block 612. A limit block 616 is rotatably installed on the inner wall of the installation groove 615. Limit grooves 617 are opened on both the left and right sides of the top wall of the hexagonal seat 68.

[0033] In this embodiment of the utility model, the purpose of this setting is that the setting of the fixing component 6 provides good stability and anti-detachment effect after the oxygen sensor of the car is installed. During long-term use, the vehicle may experience shaking and bumping. The fixing component, through the cooperation of various parts, can prevent the hexagonal seat 68 from rotating and detaching, and has good sealing performance after the sensor is installed.

[0034] Example 2:

[0035] Please see Figure 1-6 This embodiment provides a technical solution based on embodiment one: the through port 64 on the mounting base 2 is matched and connected to the through port 64 on the exhaust pipe 1. The inner wall of the through port 64 is attached to the outer wall of the sensing probe 61. The left end of the sensing probe 61 extends into the inner cavity of the exhaust pipe 1. The outer wall of the sealing ring 62 is attached to the inner wall of the sealing groove 65. The outer wall of the connecting base 67 is screwed to the screw groove 66 by the thread 63. The right side wall of the cross block 611 is fixedly connected to the spring 610. The position of the positioning port 614 matches the through port 618. The outer wall of the anti-detachment column 613 is attached to the inner wall of the through port 618 and the positioning port 614. The outer wall of the limiting block 616 is attached to the inner wall of the limiting groove 617 located on the left side. The rear wall of the limiting block 616 has a groove. A steel housing 5 is fixedly installed on the right wall of the connecting base 67. A connecting terminal 3 is installed on the side wall of the steel housing 5 through the data connection line 4.

[0036] In this embodiment of the utility model, the purpose of this arrangement is that the left end of the sensing probe 61 extends into the inner cavity of the exhaust pipe 1, which can sense the gas flowing inside the exhaust pipe 1. At the same time, after the anti-detachment column 613 enters the inlet 618 and the positioning port 614, it can prevent the hexagonal seat 68 from rotating. The rear wall of the limiting block 616 is provided with a groove to facilitate the operation of the limiting block 616 by the staff.

[0037] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0038] During operation, the sensor is first installed, and preparations are made. The groove drives the limiting block 616 to rotate within the mounting groove 615, bringing the limiting block 616 to a vertical position. The moving limiting block 616 then drives the sliding block 612 and the cross block 611 to slide within the cross groove 69. When the cross block 611 slides within the cross groove 69, the spring 610 is compressed, causing the anti-detachment post 613 to disengage from the opening 618. When the sliding block 612 reaches the limiting groove 617 on the right side, the rotation of the limiting block 616 within the mounting groove 615 causes it to enter the groove. The limiting groove 617 on the right side is fixed in the inner wall. The movable hexagonal seat 68 drives the connecting seat 67, sealing ring 62, and sensing probe 61 to move. The sensing probe 61 enters the exhaust pipe 1 through the through port 64. At the same time, the sealing ring 62 enters the sealing groove 65 and rotates the hexagonal seat 68 to drive the connecting seat 67 and the threaded wire 63 to be screwed and fixed with the threaded groove 66. After the screwing is completed, the hexagonal seat 68 fits against the outer wall of the mounting base 2. At the same time, the positioning port 614 corresponds to the position of the through port 618. The groove drives the limiting block 616 to rotate in the inner wall of the mounting groove 615. Then the limiting block 616 is in a vertical position and disengages from the positioning groove 615. Upon contact with the right-side limiting groove 617, the cross block 611 is pushed to slide within the inner wall of the cross groove 69 under the elastic action of the spring 610. The cross block 611 drives the sliding block 612 and the limiting block 616 to slide to the left. Subsequently, the cross block 611 drives the anti-detachment post 613 through the through port 618 and into the inner wall of the positioning port 614 for locking and limiting. At this time, the sliding block 612 drives the limiting block 616 to move into the inner wall of the left-side limiting groove 617, and flips the limiting block 616 to rotate within the inner wall of the mounting groove 615 and enter the inner wall of the left-side limiting groove 617 for locking and limiting. Data connection is then achieved through the movable connection terminal 3. The movement of line 4 allows the connecting terminal 3 to be inserted into the connection port, thus completing the installation and fixation of the entire sensor. It has a good sealing effect and anti-detachment properties. When the vehicle is in motion, due to the limiting and fixing of the hexagonal seat 68, the hexagonal seat 68 will not drive the connecting seat 67 and the screw groove 66 to rotate. The screw connection of the threaded line 63 and the screw groove 66 is stable. At the same time, under the elastic action of the spring 610, it abuts against the anti-detachment post 613 and enters the inner wall of the positioning port 614 for positioning and anti-detachment. Meanwhile, the limiting block 616 enters the limiting groove 617 on the left side for limiting, so that the stability is sufficient after the entire installation is completed, and it will prevent the device from falling off.

[0039] 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 process, method, article, or apparatus.

[0040] 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. An integrated anti-drop probe for an automotive oxygen sensor, comprising an exhaust pipe (1), characterized in that: The outer wall of the exhaust pipe (1) is screwed with a mounting base (2) by a number of fastening bolts, and the inner wall of the mounting base (2) is fitted with a fixing component (6); The fixing component (6) includes a connecting seat (67), on which a sensing probe (61) is fixedly installed on the left side wall. A threaded groove (66) is provided on the side wall of the mounting seat (2), and a sealing groove (65) is provided on the inner wall of the mounting seat (2). Both the mounting seat (2) and the exhaust pipe (1) have through-holes (64) on their side walls. A sealing ring (62) is fixedly installed on the left side wall of the connecting seat (67). A threaded wire (63) is provided on the left side of the outer wall of the connecting seat (67). A hexagonal seat (68) is fixedly installed on the outer wall of the connecting seat (67). A cross groove (69) is provided on the top wall of the hexagonal seat (68), and a spring (610) is fixedly installed on the inner side wall of the cross groove (69). The cross groove (69) has a cross block (611) slidably installed on its inner wall. The cross block (611) has an anti-detachment column (613) fixedly connected to its left side wall. The hexagonal seat (68) has an opening (618) on its left side wall corresponding to the anti-detachment column (613). The mounting seat (2) has a positioning opening (614) on its side wall corresponding to the opening (618). The cross block (611) has a sliding block (612) fixedly installed on its top wall. The sliding block (612) has an installation groove (615) on its left rear wall. The mounting groove (615) has a limit block (616) rotatably installed on its inner wall. The hexagonal seat (68) has limit grooves (617) on both the left and right sides of its top wall.

2. The integrated anti-drop probe of an automobile oxygen sensor according to claim 1, wherein: The port (64) on the mounting base (2) is matched and connected to the port (64) on the exhaust pipe (1). The inner wall of the port (64) is in contact with the outer wall of the sensor probe (61). The left end of the sensor probe (61) extends into the inner cavity of the exhaust pipe (1).

3. The integrated anti-drop probe of an automotive oxygen sensor according to claim 1, wherein: The outer wall of the sealing ring (62) fits against the inner wall of the sealing groove (65), and the outer wall of the connecting seat (67) is screwed to the threaded groove (66) by the threaded line (63).

4. The integrated anti-drop probe of an automotive oxygen sensor according to claim 1, wherein: The right side wall of the cross block (611) is fixedly connected to the spring (610), the position of the positioning port (614) matches the position of the through port (618), and the outer wall of the anti-detachment column (613) fits against the inner wall of the through port (618) and the positioning port (614).

5. The integrated anti-drop probe of an automotive oxygen sensor according to claim 1, wherein: The outer wall of the limiting block (616) fits against the inner wall of the limiting groove (617) located on the left side, and a groove is provided on the rear wall of the limiting block (616).

6. The integrated anti-drop probe of an automotive oxygen sensor according to claim 1, wherein: A steel housing (5) is fixedly installed on the right wall of the connector (67), and a connection terminal (3) is installed on the side wall of the steel housing (5) through a data connection cable (4).

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