CN217846238U

CN217846238U - Oxygen sensor for vehicle

Info

Publication number: CN217846238U
Application number: CN202221406602.3U
Authority: CN
Inventors: 王小琴; 胡勤
Original assignee: Suzhou Xinzhiming Sensing Electronic Technology Co ltd
Current assignee: Suzhou Xinzhiming Sensing Electronic Technology Co ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-11-18
Anticipated expiration: 2032-06-07

Abstract

The utility model discloses an automobile-used oxygen sensor belongs to automobile-used oxygen sensor technical field. An oxygen sensor for a vehicle, comprising: the oxygen sensor comprises a mounting seat detachably connected to the exhaust pipe and an oxygen sensor main body detachably connected to the mounting seat; the sliding chutes are symmetrically arranged on the mounting seat; the arc-shaped sliding plate is connected in the sliding groove in a sliding manner, and the opposite surface of the arc-shaped sliding plate is provided with a thread groove; the utility model discloses can be through on the arc slide with screw thread post threaded connection, thereby make the arc slide in the mount pad to go up the slip in order to lock locking voussoir and exhaust pipe inner wall counterbalance, can extrude cyclic annular gasbag and sealed pad in the screw thread post threaded connection process simultaneously, thereby carry out fully sealed to the gap between oxygen sensor main part and mount pad and blast pipe, the degree of accuracy of oxygen sensor monitoring has been improved, and be convenient for install the dismantlement to vehicle oxygen sensor, maintenance personal's maintenance efficiency has been improved.

Description

Oxygen sensor for vehicle

Technical Field

The utility model relates to a vehicle oxygen sensor technical field especially relates to a vehicle oxygen sensor.

Background

The vehicle oxygen sensor is a key part which is arranged on an automobile exhaust pipe, is used for detecting the content of oxygen in the tail gas discharged by an automobile, and is used for feeding back the oxygen to an automobile computer so as to adjust the air-fuel ratio in an automobile engine, thereby controlling the emission of the tail gas of the automobile, reducing the environmental pollution of the automobile and improving the fuel combustion quality of the automobile engine.

The mounting seat of the existing oxygen sensor for the vehicle is mostly directly welded on an automobile exhaust pipe in the mounting process, and when the mounting seat of the oxygen sensor for the vehicle is damaged and needs to be replaced in the using process, the oxygen sensor for the vehicle is difficult to mount and dismount, so that great inconvenience is brought to maintenance personnel.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the installation and disassembly are difficult to carry out when its mount pad takes place to damage in the vehicle oxygen sensor use among the prior art, and a vehicle oxygen sensor that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an oxygen sensor for a vehicle, comprising: the oxygen sensor comprises a mounting seat detachably connected to the exhaust pipe and an oxygen sensor main body detachably connected to the mounting seat; the sliding chutes are symmetrically arranged on the mounting seat; the arc-shaped sliding plate is connected in the sliding groove in a sliding mode, a locking wedge block is fixedly connected to the arc-shaped sliding plate, and a thread groove is formed in the opposite surface of the arc-shaped sliding plate; the locking nut is fixedly connected to the oxygen sensor main body, a threaded column is fixedly connected to the locking nut, and the threaded column is matched with the threaded groove; and the through hole is formed in the exhaust pipe and matched with the locking wedge block.

In order to limit the range of the arc-shaped sliding plate sliding up and down in the sliding groove, preferably, a limiting groove is formed in the sliding groove, and a limiting block corresponding to the limiting groove is fixedly connected to the arc-shaped sliding plate.

In order to facilitate the sliding of the arc-shaped sliding plate in the sliding groove for guiding, furthermore, a guide block is fixedly connected to the arc-shaped sliding plate, and a guide groove corresponding to the guide block is formed in the sliding groove.

In order to facilitate sealing of a gap between the mounting seat and the exhaust pipe, preferably, a sealing gasket is fixedly connected to the bottom of the mounting seat, and one side, away from the mounting seat, of the sealing gasket is attached to the surface of the exhaust pipe.

In order to facilitate sealing of a gap between the mounting seat and the oxygen sensor main body, preferably, the bottom of the locking nut is fixedly connected with a retaining ring, the bottom of the retaining ring is fixedly connected with an annular air bag, and one side of the annular air bag, far away from the retaining ring, is attached to the surface of the mounting seat.

In order to facilitate monitoring of tail gas in the exhaust pipe, the bottom of the threaded column is fixedly connected with a monitoring head.

Compared with the prior art, the utility model provides a vehicle oxygen sensor possesses following beneficial effect:

1. this automobile-used oxygen sensor through with sliding connection's in mount pad arc slide block to the through-hole to with screw thread post swivelling joint on the arc slide, can fix locking oxygen sensor main part and mount pad, the installation of this equipment of can being convenient for is used, has improved the efficiency of installation.

2. This automobile-used oxygen sensor through the extrusion to cyclic annular gasbag and sealed pad in oxygen sensor main part and the mount pad installation, has improved the sealed effect of junction between blast pipe, mount pad and the oxygen sensor main part to the degree of accuracy of monitoring in the oxygen sensor use has been improved.

3. This automobile-used oxygen sensor, with the back of removing the spiral on the oxygen sensor main part follow mount pad, support the pressure through the arc slide of bottle opener instrument to sliding connection in the mount pad to be convenient for demolish the mount pad from the blast pipe.

The device does not relate to the part among the equal and can adopt prior art to realize, the utility model discloses can be through with screw thread post threaded connection on the arc slide to make the arc slide upwards slide in the mount pad and lock in order to offset locking voussoir and blast pipe inner wall, can extrude cyclic annular gasbag and sealed the pad simultaneously among the screw thread post threaded connection process, thereby fully seal the gap between oxygen sensor main part and mount pad and blast pipe, the degree of accuracy of oxygen sensor monitoring has been improved, and be convenient for install the dismantlement to vehicle oxygen sensor, maintenance personal's maintenance efficiency has been improved.

Drawings

Fig. 1 is a schematic structural diagram of an oxygen sensor for a vehicle according to the present invention;

fig. 2 is a schematic structural diagram of a vehicular oxygen sensor according to the present invention;

fig. 3 is a schematic structural diagram of a vehicular oxygen sensor according to the present invention;

fig. 4 is a schematic structural diagram of a portion a in fig. 3 of an oxygen sensor for a vehicle according to the present invention.

In the figure: 1. an oxygen sensor body; 11. locking the nut; 12. a baffle ring; 13. an annular air bag; 14. a threaded post; 15. a monitoring head; 2. a mounting base; 21. a gasket; 22. a chute; 23. a limiting groove; 3. an exhaust pipe; 31. a through hole; 4. an arc-shaped sliding plate; 41. locking a wedge block; 42. a limiting block; 43. and a guide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1 to 4, an oxygen sensor for a vehicle includes: a mounting base 2 detachably connected to the exhaust pipe 3 and an oxygen sensor main body 1 detachably connected to the mounting base 2; the sliding chutes 22 are symmetrically arranged on the mounting base 2; the arc-shaped sliding plate 4 is connected in the sliding groove 22 in a sliding mode, a locking wedge block 41 is fixedly connected to the arc-shaped sliding plate 4, and a thread groove is formed in the opposite surface of the arc-shaped sliding plate 4; the locking nut 11 is fixedly connected to the oxygen sensor main body 1, the locking nut 11 is fixedly connected with a threaded column 14, and the threaded column 14 is matched with the threaded groove; a through hole 31 is opened in the exhaust pipe 3, and the through hole 31 is fitted with the locking wedge 41.

A limiting groove 23 is formed in the sliding groove 22, a limiting block 42 corresponding to the limiting groove 23 is fixedly connected to the arc-shaped sliding plate 4, a guide block 43 is fixedly connected to the arc-shaped sliding plate 4, and a guide groove corresponding to the guide block 43 is formed in the sliding groove 22.

The bottom of the mounting seat 2 is fixedly connected with a sealing gasket 21, and one side of the sealing gasket 21, which is far away from the mounting seat 2, is attached to the surface of the exhaust pipe 3.

The bottom of the locking nut 11 is fixedly connected with a retaining ring 12, the bottom of the retaining ring 12 is fixedly connected with an annular air bag 13, one side, far away from the retaining ring 12, of the annular air bag 13 is attached to the surface of the mounting seat 2, and the bottom of the threaded column 14 is fixedly connected with a monitoring head 15.

In the using process of the device, the mounting seat 2 can be placed above the exhaust pipe 3 provided with the through hole 31, the locking wedge 41 and the arc-shaped sliding plate 4 are inserted into the through hole 31, the arc-shaped sliding plate 4 can slide upwards in the sliding groove 22 under the action of resistance in the inserting process, when the bottom of the mounting seat 2 is attached to the surface of the exhaust pipe 3, the arc-shaped sliding plate 4 can be partially inserted into the through hole 31 under the limiting action of the limiting block 42 and the limiting groove 23, the locking wedge 41 can be clamped into the through hole 31 under the action of the inclined surface, the arc-shaped sliding plate 4 has good toughness, the locking wedge 41 can enable the arc-shaped sliding plate 4 to generate elastic deformation with a certain range under the extrusion action of the through hole 31, after the locking wedge 41 is completely clamped into the through hole 31, the arc-shaped sliding plate 4 elastically resets, then the monitoring head 15 end of the oxygen sensor main body 1 is inserted into the mounting seat 2, and the locking nut 11 is rotated by equipment such as a spanner, the oxygen sensor body 1 and the threaded column 14 are driven to rotate, a threaded groove matched with threads on the threaded column 14 is formed in the arc-shaped sliding plate 4, the threaded column 14 can be in threaded connection and locking with the arc-shaped sliding plate 4 in the rotating process, the baffle ring 12 and the annular air bag 13 are gradually close to the top surface of the mounting seat 2 in the gradual locking process of the threaded column 14 and the arc-shaped sliding plate 4, when the annular air bag 13 is in contact with the top surface of the mounting seat 2, the baffle ring 12 and the mounting seat 2 can extrude the annular air bag 13, so that a gap between the baffle ring 12 and the mounting seat 2 is reduced and gradually sealed under the gas reaction force in the annular air bag 13, meanwhile, the reaction force of the gas in the annular air bag 13 can exert an upward force on the oxygen sensor body 1, and the arc-shaped sliding plate 4 is in a threaded connection state with the threaded column 14 at the moment, so that the arc-shaped sliding plate 4 moves upward under the acting force exerted on the oxygen sensor body 1 by the annular air bag 13, until locking voussoir 41 offsets with the inner wall of blast pipe 3, and annular gasbag 13 can exert decurrent effort to mount pad 2 in step to the reverse effort of mount pad 2, thereby can make mount pad 2 and blast pipe 3 closely laminate, so under the sealed effect of sealed pad 21, can fully seal the gap between blast pipe 3 and the mount pad 2, thereby can fully seal the gap between oxygen sensor main part 1 and the mount pad 2 and between mount pad 2 and the blast pipe 3 when being convenient for install, the accuracy of the monitoring result of vehicle oxygen sensor has been improved.

When mount pad 2 takes place to damage and need to be changed, accessible 11 drive screw thread posts 14 of reverse rotation lock nut dismantle from mount pad 2, arc slide 4 slides downwards in mount pad 2 under its dead weight effect this moment, can use relevant instruments such as bottle opener to insert from the gap between mount pad 2 and the blast pipe 3 and support arc slide 4, make it take place slight deformation, and exert ascending pulling force to mount pad 2 in step, make locking wedge 41 break away from in the through-hole 31 and can accomplish the dismantlement to mount pad 2, thereby take place to damage and dismantle in being convenient for this equipment use.

This device can be through with 14 threaded connection of screw post on arc slide 4, thereby make arc slide 4 inwards slide in mount pad 2 and lock in order to offset

locking wedge

41 and 3 inner walls of blast pipe, 14 threaded connection in-process of screw post can extrude cyclic annular gasbag 13 and sealed pad 21 simultaneously, thereby carry out fully sealed to the gap between oxygen sensor main part 1 and mount pad 2 and blast pipe 3, the degree of accuracy of oxygen sensor monitoring has been improved, and be convenient for install the dismantlement to automobile-used oxygen sensor, maintenance personal's maintenance efficiency has been improved.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. An oxygen sensor for a vehicle, comprising:

the oxygen sensor comprises a mounting seat (2) detachably connected to an exhaust pipe (3) and an oxygen sensor main body (1) detachably connected to the mounting seat (2);

the sliding chutes (22) are symmetrically arranged on the mounting seat (2);

the arc-shaped sliding plate (4) is connected in the sliding groove (22) in a sliding mode, a locking wedge block (41) is fixedly connected to the arc-shaped sliding plate (4), and thread grooves are formed in the opposite surfaces of the arc-shaped sliding plate (4);

the locking nut (11) is fixedly connected to the oxygen sensor main body (1), the locking nut (11) is fixedly connected with a threaded column (14), and the threaded column (14) is matched with the thread groove;

and a through hole (31) formed in the exhaust pipe (3), wherein the through hole (31) is matched with the locking wedge block (41).

2. The vehicular oxygen sensor according to claim 1, wherein a limiting groove (23) is formed in the sliding groove (22), and a limiting block (42) corresponding to the limiting groove (23) is fixedly connected to the arc-shaped sliding plate (4).

3. The vehicular oxygen sensor according to claim 2, wherein a guide block (43) is fixedly connected to the arc-shaped sliding plate (4), and a guide groove corresponding to the guide block (43) is formed in the sliding groove (22).

4. The vehicular oxygen sensor according to claim 1, wherein a gasket (21) is fixedly connected to the bottom of the mounting seat (2), and one side of the gasket (21) away from the mounting seat (2) is attached to the surface of the exhaust pipe (3).

5. The oxygen sensor for the vehicle as claimed in claim 1, wherein a baffle ring (12) is fixedly connected to the bottom of the locking nut (11), an annular air bag (13) is fixedly connected to the bottom of the baffle ring (12), and one side of the annular air bag (13) far away from the baffle ring (12) is attached to the surface of the mounting seat (2).

6. The vehicular oxygen sensor according to claim 5, wherein a monitoring head (15) is fixedly connected to the bottom of the threaded column (14).