阅读说明：本技术 一种机动车尾气排放egr温度传感器的精度检测装置 (Precision detection device of motor vehicle exhaust emission EGR temperature sensor ) 是由 陈娇蓉 陈国伟 姜振岳 陈乃华 于 2021-08-24 设计创作，主要内容包括：本发明公开了一种机动车尾气排放EGR温度传感器的精度检测装置,包括底座,所述底座的一侧上表面固定连接有工业热风机,所述底座的另一侧上表面固定连接有支撑夹座,所述支撑夹座的内侧表面安装有升降管,所述工业热风机的外端表面通过螺纹连接有第一螺纹凹套,所述第一螺纹凹套的内侧表面挤压固定有活节波纹软管,所述活节波纹软管的另一端通过第二螺纹凹套扭紧固定在升降管的外端表面,所述升降管的另一侧外表面固定有空气流量阀,通过设计模拟尾气排放组件,可调整检测高度,高度不同,空气温度不同,检测时直接取EGR温度传感器插入检测管内检测,对比温度计量标准传感器观察数值,便于测量检测温度检测的精度。(The invention discloses a precision detection device of an EGR (exhaust gas recirculation) temperature sensor for motor vehicle exhaust emission, which comprises a base, wherein an industrial air heater is fixedly connected to the upper surface of one side of the base, a supporting holder is fixedly connected to the upper surface of the other side of the base, a lifting pipe is arranged on the inner side surface of the supporting holder, a first threaded concave sleeve is connected to the outer end surface of the industrial air heater through threads, a movable joint corrugated hose is extruded and fixed to the inner side surface of the first threaded concave sleeve, the other end of the movable joint corrugated hose is tightly fixed to the outer end surface of the lifting pipe through a second threaded concave sleeve, an air flow valve is fixed to the outer surface of the other side of the lifting pipe, an exhaust emission simulation assembly is designed, the detection height can be adjusted, the heights are different, the air temperatures are different, the EGR temperature sensor is directly inserted into a detection pipe for detection during detection, and the numerical value is observed by comparing with a temperature measurement standard sensor, the accuracy of temperature detection is convenient to measure and detect.)

1. The utility model provides a motor vehicle exhaust emissions EGR temperature sensor's precision detection device, includes base (1), its characterized in that: the air heater is characterized in that an industrial air heater (2) is fixedly connected to the upper surface of one side of a base (1), a supporting clamping seat (3) is fixedly connected to the upper surface of the other side of the base (1), a lifting pipe (4) is mounted on the surface of the inner side of the supporting clamping seat (3), a first threaded concave sleeve (5) is connected to the outer end surface of the industrial air heater (2) through threads, a movable joint corrugated hose (6) is fixed to the inner side surface of the first threaded concave sleeve (5) in an extruding mode, the other end of the movable joint corrugated hose (6) is tightly fixed to the outer end surface of the lifting pipe (4) through a second threaded concave sleeve (7) in a screwing mode, an air flow valve (8) is fixed to the outer surface of the other side of the lifting pipe (4), a detection pipe (9) is fixedly connected to the outer surface of the air flow valve (8), a temperature measurement standard sensor (10) is arranged on the upper end surface of the detection pipe (9), the both ends of fall way (4) set up screw thread protruding axle (40), the external fixed surface that supports holder (3) has bar mouth (30), screw thread protruding axle (40) card is gone into in bar mouth (30).

2. The apparatus for detecting the accuracy of an EGR temperature sensor for an automobile exhaust emission according to claim 1, wherein: the outer surface of the threaded convex shaft (40) is connected with a nut (41).

3. The apparatus for detecting the accuracy of an EGR temperature sensor for an automobile exhaust emission according to claim 2, wherein: the outer surface of the nut (40) is fixedly connected with a twisting block (42).

4. The apparatus for detecting the accuracy of an EGR temperature sensor for an automobile exhaust emission according to claim 1, wherein: one end of the movable joint corrugated hose (6) is provided with a conical deformation diameter section (60).

5. The apparatus for detecting the accuracy of an EGR temperature sensor for an automobile exhaust emission according to claim 1, wherein: and an air guide convex opening (11) is arranged on the end surface of the outer end of the detection pipe (9).

6. The apparatus for detecting the accuracy of an EGR temperature sensor for an automobile exhaust emission according to claim 1, wherein: the outer surfaces of the first threaded concave sleeve (5) and the second threaded concave sleeve (7) are provided with grooves (57).

7. The apparatus for detecting the accuracy of an EGR temperature sensor for an automobile exhaust gas emission according to claim 6, wherein: the grooves (57) are uniformly distributed on one circle of surface of the first thread concave sleeve (5) and the second thread concave sleeve (7).

8. The apparatus for detecting the accuracy of an EGR temperature sensor for an automobile exhaust emission according to claim 1, wherein: the lifting pipe (4) is made of stainless steel.

9. The apparatus for detecting the accuracy of an EGR temperature sensor for an automobile exhaust emission according to claim 1, wherein: the detection tube (9) is made of stainless steel.

Technical Field

The invention relates to the field of EGR temperature sensor production, in particular to a precision detection device of an EGR temperature sensor for motor vehicle exhaust emission.

Background

The exhaust emission of the motor vehicle refers to the exhaust emission generated in the running process of the motor vehicle;

along with the development of environmental protection work, automobile exhaust emission detects also more and more strictly, need detect the temperature through EGR temperature sensor during automobile exhaust emission among its prior art, need detect its precision when its production EGR temperature sensor, and traditional approach mostly detects the sensor precision through sealed stoving case, and it is different when detecting environment and exhaust emission, and the precision is low during its detection, and it is not convenient enough during the detection.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a precision detection device of an EGR (exhaust gas recirculation) temperature sensor for motor vehicle exhaust emission, which can adjust the detection height through designing a simulated exhaust emission component, has different heights and different air temperatures, directly inserts the EGR temperature sensor into a detection pipe for detection during detection, compares the values observed by a temperature measurement standard sensor, and is convenient for measuring the precision of temperature detection.

In order to solve the above problems, the present invention adopts the following technical solutions.

The precision detection device of the motor vehicle exhaust emission EGR temperature sensor comprises a base, wherein an industrial air heater is fixedly connected to the upper surface of one side of the base, a supporting clamping seat is fixedly connected to the upper surface of the other side of the base, a lifting pipe is arranged on the inner side surface of the supporting clamping seat, a first threaded concave sleeve is connected to the outer end surface of the industrial air heater through threads, a movable joint corrugated hose is fixed to the inner side surface of the first threaded concave sleeve in an extrusion mode, the other end of the movable joint corrugated hose is fixed to the outer end surface of the lifting pipe through a second threaded concave sleeve in a tightening mode, an air flow valve is fixed to the outer surface of the other side of the lifting pipe, a detection pipe is fixedly connected to the outer surface of the air flow valve, a temperature measurement standard sensor is arranged on the upper end surface of the detection pipe, threaded convex shafts are arranged at the two ends of the detection pipe, and a strip-shaped opening is fixed to the outer surface of the supporting clamping seat, in the bar mouth is gone into to screw thread protruding axle card, through design simulation exhaust emission subassembly, the adjustable height that detects, highly different, air temperature is different, directly gets during the detection that EGR temperature sensor inserts the interior detection of detecting tube, compares temperature measurement standard sensor observation value, is convenient for measure the precision that detects the temperature detection.

Furthermore, the outer surface of the threaded convex shaft is connected with a nut, so that the lifting pipe is convenient to lock and fix.

Furthermore, the outer surface of the nut is fixedly connected with a twisting block, so that the nut is convenient to twist and lock.

Furthermore, one end of the movable joint corrugated hose is provided with a conical deformation diameter section, so that hot air flow guiding is facilitated.

Furthermore, the end face of the outer end of the detection tube is provided with an air guide convex opening, so that air guide is facilitated, and the EGR temperature sensor can be conveniently inserted to detect the temperature.

Furthermore, the outer surfaces of the first threaded concave sleeve and the second threaded concave sleeve are provided with grooves, so that the friction force is increased during twisting.

Furthermore, the grooves are uniformly distributed on the circle of surface of the first thread concave sleeve and the second thread concave sleeve, the distribution is uniform, and the friction force is large during twisting.

Furthermore, the lifting pipe is made of stainless steel, so that the lifting pipe is rust-proof and durable and has the same quality as the tail gas pipe.

Furthermore, the detection tube is made of stainless steel, so that the detection tube is rust-proof and durable and has the same quality as the tail gas tube.

Compared with the prior art, the invention has the advantages that:

(1) through design simulation exhaust emission subassembly, the adjustable height that detects, the high difference, air temperature is different, directly gets EGR temperature sensor and inserts and detect in the detecting tube during the detection, and contrast temperature measurement standard sensor observes numerical value, is convenient for measure the precision that detects the temperature and detect.

(2) The outer surface of the threaded convex shaft is connected with a nut, so that the lifting pipe is convenient to lock and fix.

(3) The outer surface of the nut is fixedly connected with a twisting block, so that the nut can be conveniently twisted to lock.

(4) One end of the movable joint corrugated hose is provided with a conical variable diameter joint, so that hot air flow guiding is facilitated.

(5) The end face of the outer end of the detection pipe is provided with an air guide convex opening, so that air guide is facilitated, and the EGR temperature sensor can be conveniently inserted to detect temperature.

(6) The outer surfaces of the first threaded concave sleeve and the second threaded concave sleeve are provided with grooves, so that the friction force is increased during twisting.

(7) The grooves are uniformly distributed on the circle of surface of the first thread concave sleeve and the second thread concave sleeve, the distribution is uniform, and the friction force is large during twisting.

(8) The lifting pipe is made of stainless steel, is rust-proof and durable and has the same quality as the tail gas pipe.

(9) The detection tube is made of stainless steel, is rust-proof and durable and has the same quality as the tail gas tube.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top view of the elevator tube and support pedestal connection of the present invention;

FIG. 3 is a top view of an elevator tube of the present invention;

FIG. 4 is a side view of a first threaded socket of the present invention.

The reference numbers in the figures illustrate:

the device comprises a base 1, an industrial air heater 2, a supporting clamp holder 3, a lifting pipe 4, a first threaded concave sleeve 5, a corrugated flexible pipe with a movable joint 6, a second threaded concave sleeve 7, an air flow valve 8, a detection pipe 9, a temperature measurement standard sensor 10, a threaded convex shaft 40, a strip-shaped opening 30, a nut 41, a torsion block 42, a tapered diameter section 60, an air guide convex opening 11 and a groove 57.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, a precision detecting device of an EGR temperature sensor for motor vehicle exhaust emission comprises a base 1, an industrial air heater 2 is fixedly connected to an upper surface of one side of the base 1, a supporting holder 3 is fixedly connected to an upper surface of the other side of the base 1, a lifting pipe 4 is installed on an inner side surface of the supporting holder 3, a first threaded concave sleeve 5 is connected to an outer end surface of the industrial air heater 2 through a thread, an eyelet corrugated hose 6 is fixed to an inner side surface of the first threaded concave sleeve 5 in an extruding manner, the other end of the eyelet corrugated hose 6 is tightly fixed to an outer end surface of the lifting pipe 4 through a second threaded concave sleeve 7, an air flow valve 8 is fixed to an outer side surface of the lifting pipe 4, a detecting pipe 9 is fixedly connected to an outer surface of the air flow valve 8, a temperature measuring standard sensor 10 is arranged on an upper end surface of the detecting pipe 9, threaded convex shafts 40 are arranged at two ends of the lifting pipe 4, the outer surface of the supporting holder 3 is fixed with a strip-shaped opening 30, and the threaded convex shaft 40 is clamped in the strip-shaped opening 30.

Referring to fig. 1-4, the outer surface of the threaded male shaft 40 is connected with a nut 41 for locking and fixing the elevator tube 4, the outer surface of the nut 40 is fixedly connected with a twisting block 42 for twisting the nut 41 for locking, one end of the movable joint corrugated hose 6 is provided with a tapered reducer 60 for guiding hot air, the outer end surface of the detection tube 9 is provided with an air guide boss 11 for guiding air and inserting an EGR temperature sensor for detecting temperature, grooves 57 are formed on the outer surfaces of the first threaded female sleeve 5 and the second threaded female sleeve 7 for increasing friction force during twisting, the grooves 57 are uniformly distributed on the surfaces of the first threaded female sleeve 5 and the second threaded female sleeve 7 for uniform distribution, the friction force during twisting is large, the elevator tube 4 is made of stainless steel and is rust-proof and durable, the quality of the detection pipe 9 is the same as that of the tail gas pipe, and the detection pipe is made of stainless steel, so that the detection pipe is rust-proof and durable and has the same quality as that of the tail gas pipe.

When the device is used, an industrial air heater 2 is fixedly connected to the upper surface of one side of a base 1, a supporting holder 3 is fixedly connected to the upper surface of the other side of the base 1, a lifting pipe 4 is installed on the inner side surface of the supporting holder 3, a first thread concave sleeve 5 is connected to the outer end surface of the industrial air heater 2 through threads, a movable joint corrugated hose 6 is fixedly extruded on the inner side surface of the first thread concave sleeve 5, the other end of the movable joint corrugated hose 6 is tightly fixed to the outer end surface of the lifting pipe 4 through a second thread concave sleeve 7, hot air is led in through the industrial air heater 2, the movable joint corrugated hose 6 is led into the lifting pipe 4 for blowing, tail gas emission blowing is simulated, during detection, an air flow valve 8 is fixed to the outer surface of the other side of the lifting pipe 4 for detecting the flow rate of air flow, a detection pipe 9 is fixedly connected to the outer surface of the air flow valve 8, and a temperature measurement standard sensor 10 is arranged on the upper end surface of the detection pipe 9, when the hot air is led out, the temperature value is measured by the temperature measuring standard sensor 10, when in detection, the EGR temperature sensor probe is inserted into the detection pipe 9 for detection, and the detected value is compared with the temperature measuring standard sensor 10 for detection;

the lifting pipe is convenient to use, the two ends of the lifting pipe 4 are provided with the threaded convex shafts 40, the outer surface of the supporting clamp holder 3 is fixed with the strip-shaped opening 30, the threaded convex shafts 40 are clamped in the strip-shaped opening 30, up-and-down movement adjustment can be carried out, the detection height can be adjusted, the environmental temperatures at different heights are different, and the precision is improved;

the outer surface of the threaded protruding shaft 40 is connected with a nut 41, so that the lifting pipe 4 is locked and fixed conveniently, and the outer surface of the nut 40 is fixedly connected with a twisting block 42, so that the nut 41 is twisted and locked conveniently, and the operation is convenient.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.