CN216792161U

CN216792161U - Vehicle oxygen sensor heat insulation connection structure convenient to disassemble and assemble

Info

Publication number: CN216792161U
Application number: CN202220089828.9U
Authority: CN
Inventors: 赖源标
Original assignee: Guangzhou Meiruntao Thermal Electric Co ltd
Current assignee: Guangzhou Meiruntao Thermal Electric Co ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-06-21
Anticipated expiration: 2032-01-13

Abstract

The utility model discloses a vehicle oxygen sensor heat insulation connecting structure convenient to disassemble and assemble, which aims to solve the technical problems that in the prior art, the integral structure is complex, the disassembly and the assembly are inconvenient, a rear-end ceramic piece, a wire end ceramic piece and a fixing jacket are connected in a clamping manner, after repeated disassembly and assembly, a clamping block is easy to wear, a joint is easy to loosen, and the firmness of connection is influenced. The heat insulation connecting structure comprises a middle insulation shell, a rear insulation shell arranged at the right end of the middle insulation shell, a mounting seat arranged at the left end of the middle insulation shell, and a connector and a probe which are sequentially fixed at the left end of the mounting seat. This thermal-insulated connection structure utilizes joint coupling assembling's design, easy dismounting connects through rotatory fastening components's rotation between mount pad and middle insulation shell, the simple structure of dismantlement, and rotatory fastening components and joint coupling assembling are difficult for wearing and tearing, can not cause the junction pine to take off along with the increase of dismouting number of times, play thermal-insulated effect.

Description

Vehicle oxygen sensor heat insulation connection structure convenient to disassemble and assemble

Technical Field

The utility model belongs to the technical field of oxygen sensors, and particularly relates to a vehicle oxygen sensor heat insulation connecting structure convenient to disassemble and assemble.

Background

The oxygen sensor is used for measuring whether oxygen in exhaust gas after combustion of the engine is excessive or not, so that the engine can realize closed-loop control taking an excess air factor as a target, and conversion and purification of the discharged pollutants are performed to the maximum extent.

At present, the utility model patent that patent number is CN201922038432.2 discloses a thermal-insulated connection structure of vehicle oxygen sensor, including rear end ceramic member and line terminal ceramic member, rear end ceramic member central authorities cross-under has the sensing element, it is provided with binding post to correspond the sensing element on the line terminal ceramic member, rear end ceramic member bottom is provided with the location connecting hole, line terminal ceramic member top corresponds the location connecting hole and is provided with the isolation support column, the isolation support column front end corresponds to embolia the location connecting hole, binding post corresponds the laminating with the sensing element, line terminal ceramic member rear end is provided with rubber seal spare, the fixed clamp cover has been cup jointed in the rear end ceramic member and the line terminal ceramic member outside. The rubber sealing piece at the rear end of the wire end ceramic piece is prevented from being aged by heat through the isolation supporting column, but the overall structure of the heat insulation connecting structure of the oxygen sensor is complex, so that the oxygen sensor is inconvenient to disassemble and assemble, the rear end ceramic piece, the wire end ceramic piece and the fixing jacket are connected in a clamping manner, after repeated disassembling and assembling, the clamping block is easy to wear, the joint is easy to loosen and fall off, and the firmness of connection is influenced.

Therefore, in order to solve the above-mentioned inconvenience in assembly and disassembly, it is necessary to improve the application scenario of the thermal insulation connection structure of the oxygen sensor.

SUMMERY OF THE UTILITY MODEL

(1) Technical problem to be solved

Aiming at the defects of the prior art, the utility model aims to provide a vehicle oxygen sensor heat insulation connecting structure convenient to disassemble and assemble, which aims to solve the technical problems that the overall structure is complex and the disassembly and assembly are inconvenient, a rear-end ceramic part, a line-end ceramic part and a fixing jacket are connected in a clamping manner, after repeated disassembly and assembly, a clamping block is easy to wear, a joint is easy to loosen and loose, and the firmness of connection is influenced.

(2) Technical scheme

In order to solve the technical problems, the utility model provides a conveniently-disassembled and assembled heat-insulated connecting structure of an oxygen sensor for a vehicle, which comprises a middle insulating shell, a rear insulating shell arranged at the right end of the middle insulating shell, a mounting seat arranged at the left end of the middle insulating shell, a connector and a probe, wherein the connector and the probe are sequentially fixed at the left end of the mounting seat; wherein, middle insulating casing left end fixedly connected with past the heater that extends in the probe, middle insulating casing right-hand member fixedly connected with past the electrode that the back insulating casing right-hand member extends, the thermal-insulated dustcoat of detachable is installed in middle insulating casing and the back insulating casing outside, be provided with in the thermal-insulated dustcoat and be used for connecting the joint coupling assembling of middle insulating casing and back insulating casing, the logical groove that annular equidistance distributes is seted up to middle insulating casing left end, the mount pad right-hand member install with lead to groove assorted rotation fastening component.

When using this technical scheme's thermal-insulated connection structure, the heater with middle insulating casing left end inserts in the probe, and will lead to the groove and align with rotatory fastening component, rotatory fastening component wears out from leading to the groove, then rotate rotatory fastening component, thereby connect mount pad and middle insulating casing, middle insulating casing and back insulating casing align with thermal-insulated dustcoat, then upwards mention joint coupling assembling, then put into thermal-insulated dustcoat with middle insulating casing and back insulating casing, loosen joint coupling assembling, thereby with middle insulating casing, back insulating casing and thermal-insulated dustcoat are fixed, put into the position that needs the installation to the probe, then the rotating connector, it can to install oxygen sensor well.

Preferably, the clamping connection assembly comprises an insert rod, a limiting plate fixed at the upper end of the insert rod, and an elastic element installed at the lower end of the limiting plate and sleeved outside the insert rod. The limiting plate is pulled inwards through the pulling force of the elastic element, so that the inserted rod is inserted between the middle insulating shell and the rear insulating shell, and the firmness of connection among the middle insulating shell, the rear insulating shell and the heat insulation outer cover is guaranteed.

Preferably, rotatory fastening components include the connecting rod, fix the positioning baffle at the connecting rod right-hand member, install rotatable dwang in positioning baffle right-hand member, fix the limit baffle at dwang right-hand member. Through rotating limit baffle, realize the connection between middle insulating casing and mount pad, easy dismounting.

Preferably, both ends all fixedly connected with sliding block around middle insulating casing and the back insulating casing, the heat-insulating dustcoat inboard seted up with the sliding tray that the sliding block corresponds. Through the design of sliding block and sliding tray, play the effect of location, be convenient for the connection between middle insulating casing, back insulating casing and thermal-insulated dustcoat.

Preferably, the surface of the heat insulation outer cover is provided with annular heat dissipation grooves distributed at equal intervals. Through setting up the radiating groove, the heat of being convenient for outwards disperses.

Preferably, the upper end and the lower end of the heat insulation outer cover are provided with guide through holes which are distributed in bilateral symmetry, and the upper end and the lower end of the middle insulation shell and the upper end and the lower end of the rear insulation shell are provided with positioning holes corresponding to the guide through holes. Through setting up the direction through-hole, when joint coupling assembling reciprocated, joint coupling assembling pegged graft with the locating hole to it is fixed with middle insulating shell, back insulating shell and thermal-insulated dustcoat.

Preferably, the surface of the probe is provided with an induction port. The sensing port is used for detecting oxygen information in the exhaust.

(3) Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that: the heat insulation connecting structure utilizes the design of the clamping connecting assembly, the heat insulation outer cover is convenient to be connected with the middle insulating shell and the rear insulating shell, the assembly and disassembly are convenient, the mounting seat and the middle insulating shell are connected through the rotation of the rotating fastening assembly, the disassembly structure is simple, the rotating fastening assembly and the clamping connecting assembly are not easy to wear, the connection part cannot be loosened along with the increase of the assembly and disassembly times, the connection firmness can be ensured, and a gap is reserved between the middle insulating shell and the rear insulating shell, so that the heat conduction can be isolated, and the heat insulation effect is achieved.

Drawings

FIG. 1 is a schematic perspective view of one embodiment of the thermal insulation connecting structure of the present invention;

FIG. 2 is a schematic front view of an embodiment of the thermal insulation connecting structure of the present invention;

FIG. 3 is a schematic side view of an embodiment of the thermally insulating joint of the present invention;

FIG. 4 is an assembly view of the heat insulating cover and the snap connection assembly according to one embodiment of the heat insulating connection structure of the present invention.

The labels in the figures are: 1. an intermediate insulating case; 2. a rear insulating case; 3. a mounting seat; 4. a connector; 5. a probe; 6. a heater; 7. an electrode; 8. a thermally insulating enclosure; 9. clamping the connecting assembly; 91. inserting a rod; 92. a limiting plate; 93. an elastic element; 10. a through groove; 11. rotating the fastening assembly; 111. a connecting rod; 112. positioning a baffle plate; 113. rotating the rod; 114. a limit baffle; 12. a slider; 13. a sliding groove; 14. a heat sink; 15. a guide through hole; 16. positioning holes; 17. and a sensing port.

Detailed Description

Example 1

The specific embodiment is a conveniently-disassembled and assembled heat-insulating connecting structure of an oxygen sensor for a vehicle, the three-dimensional structure of the structure is schematically shown in fig. 1, the front structure of the structure is schematically shown in fig. 2, the heat-insulating connecting structure comprises a middle insulating shell 1, a rear insulating shell 2 arranged at the right end of the middle insulating shell 1, a mounting seat 3 arranged at the left end of the middle insulating shell 1, a connector 4 and a probe 5 which are sequentially fixed at the left end of the mounting seat 3; 1 left end fixedly connected with of middle insulating casing is toward heater 6 that extends in 5 probes, 1 right-hand member fixedly connected with of middle insulating casing is electrode 7 that 2 right-hand members of insulating casing extend backward, detachable thermal-insulated dustcoat 8 is installed in the 2 outsides of middle insulating casing 1 and back insulating casing, be provided with the joint coupling assembling 9 that is used for connecting middle insulating casing 1 and back insulating casing 2 in the thermal-insulated dustcoat 8, the logical groove 10 that annular equidistance distributes is seted up to 1 left end of middle insulating casing, the rotatory fastening component 11 with logical groove 10 assorted is installed to 3 right-hand members of mount pad.

Wherein, joint coupling assembling 9 includes inserted bar 91, fixes limiting plate 92 in inserted bar 91 upper end, installs at limiting plate 92 lower extreme and cup joints the elastic element 93 in the inserted bar 91 outside, and rotatory fastening subassembly 11 includes connecting rod 111, fixes the location baffle 112 at connecting rod 111 right-hand member, installs at the rotatable dwang 113 of location baffle 112 right-hand member, fixes the limit baffle 114 at dwang 113 right-hand member.

Simultaneously, the equal fixedly connected with sliding block 12 in both ends around middle insulating casing 1 and the rear insulation shell 2, the sliding tray 13 corresponding with sliding block 12 is seted up to thermal-insulated dustcoat 8 inboard, the radiating groove 14 that the annular equidistance distributes is seted up on thermal-insulated dustcoat 8 surface, bilateral symmetry's direction through-hole 15 is all seted up at thermal-insulated dustcoat 8 upper and lower both ends, middle insulating casing 1 and rear insulation shell 2 upper and lower both ends all seted up with the corresponding locating hole 16 of direction through-hole 15.

In addition, the surface of the probe 5 is provided with a sensing port 17.

The side structure of the heat insulation connecting structure is schematically shown in fig. 3, and the assembly of the heat insulation cover 8 and the clamping connecting assembly 9 is schematically shown in fig. 4.

When using this technical scheme's thermal-insulated connection structure, insert the heater 6 of 1 left end of middle insulating casing in the probe 5, and to lead to groove 10 and rotatory fastening component 11 and align, rotatory fastening component 11 is worn out from leading to groove 10, then rotate rotatory fastening component 11, thereby connect mount pad 3 and middle insulating casing 1, middle insulating casing 1 aligns with back insulating casing 2 and thermal-insulated dustcoat 8, then upwards mention joint coupling assembling 9, then put into thermal-insulated dustcoat 8 with middle insulating casing 1 and back insulating casing 2, loosen joint coupling assembling 9, thereby it is fixed with middle insulating casing 1, back insulating casing 2 and thermal-insulated dustcoat 8, put into the position that needs the installation to probe 5, then rotating connector 4, it can to install oxygen sensor.

Claims

1. A vehicle oxygen sensor heat insulation connecting structure convenient to disassemble and assemble comprises a middle insulation shell, a rear insulation shell arranged at the right end of the middle insulation shell, a mounting seat arranged at the left end of the middle insulation shell, a connector and a probe which are sequentially fixed at the left end of the mounting seat; its characterized in that, middle insulating shell left end fixedly connected with past the heater that extends in the probe, middle insulating shell right-hand member fixedly connected with past the electrode that the back insulating shell right-hand member extends, the thermal-insulated dustcoat of detachable is installed in middle insulating shell and the back insulating shell outside, be provided with in the thermal-insulated dustcoat and be used for connecting the joint coupling assembling of middle insulating shell and back insulating shell, the logical groove that annular equidistance distributes is seted up to middle insulating shell left end, the mount pad right-hand member install with lead to groove assorted rotatory fastening components.

2. The vehicular oxygen sensor heat-insulation connecting structure convenient to disassemble and assemble according to claim 1, wherein the clamping connecting assembly comprises an insert rod, a limiting plate fixed at the upper end of the insert rod, and an elastic element installed at the lower end of the limiting plate and sleeved outside the insert rod.

3. The vehicular oxygen sensor heat-insulation connecting structure convenient to disassemble and assemble according to claim 1, wherein the rotary fastening component comprises a connecting rod, a positioning baffle fixed at the right end of the connecting rod, a rotating rod mounted at the right end of the positioning baffle and capable of rotating, and a limit baffle fixed at the right end of the rotating rod.

4. The vehicular oxygen sensor heat-insulation connecting structure convenient to disassemble and assemble according to claim 1, wherein sliding blocks are fixedly connected to the front end and the rear end of the middle insulating shell and the rear insulating shell, and sliding grooves corresponding to the sliding blocks are formed in the inner side of the heat-insulation outer cover.

5. The vehicular oxygen sensor heat-insulating connection structure convenient to disassemble and assemble according to claim 1, wherein the surface of the heat-insulating outer cover is provided with annular heat dissipation grooves distributed at equal intervals.

6. The vehicular oxygen sensor heat-insulating connection structure convenient to disassemble and assemble according to claim 1, wherein the upper end and the lower end of the heat-insulating outer cover are provided with guide through holes which are bilaterally symmetrically distributed, and the upper end and the lower end of the middle insulating shell and the rear insulating shell are provided with positioning holes corresponding to the guide through holes.

7. The vehicular oxygen sensor heat-insulation connecting structure convenient to disassemble and assemble according to claim 1, wherein the surface of the probe is provided with an induction port.