CN220583673U

CN220583673U - Efficient urea sensor debugging and detecting tool

Info

Publication number: CN220583673U
Application number: CN202322314464.7U
Authority: CN
Inventors: 许俊杰; 张佳明; 郑波
Original assignee: Wuxi Senmic Sensor Technology Co ltd
Current assignee: Wuxi Senmic Sensor Technology Co ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-03-12
Anticipated expiration: 2033-08-28

Abstract

The utility model discloses a high-efficiency urea sensor debugging and detecting tool which comprises a bottom plate, a plurality of T-shaped plates and guide rails, wherein a plurality of groups of fixing strips are arranged on the upper wall of the bottom plate. Firstly, the detection ends of a plurality of urea sensors are inserted into the sensor mounting holes, then the pressing plates are fixed above the fixing strips through the fastening bolts, the urea sensors are positioned, the handles in the push-pull clamps on the two sides are pulled by two hands to drive the clamping rods to move, so that the T-shaped plates and the guide rail sliding blocks are driven to move, in the moving process, the plug connectors are aligned with the plug connectors of the sensors one by one, the electrical connection of the sensors and the control ends is completed, then constant pressure gas is discharged into the ventilation cavity through the air inlet strips, then the gas flows into the sensor mounting holes along the gas channels, corresponding pressure data can be acquired through the sensors at this moment, then the operation of detecting a plurality of sensors once can be realized compared with the data of the control ends, and the working efficiency can be greatly improved.

Description

Efficient urea sensor debugging and detecting tool

Technical Field

The utility model belongs to the technical field of urea sensor detection, and particularly relates to a high-efficiency urea sensor debugging and detecting tool.

Background

As environmental protection demands are increasing, there is a growing demand for exhaust emissions from diesel engines, and Particulates (PM) and nitrogen oxides (NOx) produced by diesel engines are two of the most significant pollutants in emissions. Exhaust aftertreatment is typically employed to reduce pollutant emissions, and urea-SCR selective catalytic reduction is the most realistic approach. The urea pressure sensor is a sensor of an SCR urea injection system for exhaust aftertreatment of a diesel engine, and is used for detecting the urea pressure, so that the urea pressure sensor is helpful for determining the urea injection quantity.

At present, in order to ensure the stability and accuracy of the urea sensor in the subsequent use, after the sensor is produced, the performance of the urea sensor needs to be regulated and detected, the existing calibration and test principle of the urea pressure sensor is that the external wiring is adopted, gas is introduced into the detection end of the sensor, the output obtained electric signal is detected, and compared with preset parameters, the detection operation is finished, and the traditional detection device only can detect one urea sensor at one time, so that the detection efficiency is low; meanwhile, as one sensor is used for detection, the temperature and the pressure of each sensor cannot be guaranteed to be in the same temperature and the same pressure value, so that the accuracy gap of a plurality of sensors is difficult to intuitively know, and the overall detection effect is influenced.

In view of this, a high-efficient urea sensor debugging detects frock is proposed.

Disclosure of Invention

The utility model aims at: in order to solve the problem, a high-efficiency urea sensor debugging and detecting tool is provided.

The technical scheme adopted by the utility model is as follows: the utility model provides a high-efficient urea sensor debugging detects frock, includes bottom plate, a plurality of T shaped plate and guide rail, the upper wall of bottom plate all is equipped with multiunit fixed strip, a plurality of sensor mounting holes have transversely evenly been seted up to fixed strip upper wall;

the side surfaces of the fixing strips are respectively provided with a fixing frame, one side wall, close to the fixing strips, of each fixing frame is fixedly provided with a plug board, the plug boards are fixedly provided with a plurality of plugs, and the plugs correspond to the sensor mounting holes in number and in position one by one;

two ends of the two fixing frames are respectively connected with a T-shaped plate, one end of the T-shaped plate, which is far away from the fixing frames, is fixedly connected with a guide rail sliding block, the guide rail sliding block is connected onto a guide rail in a sliding manner, and one end of the guide rail sliding block is provided with a push-pull clamp;

an air inlet strip is fixedly arranged at the bottom of the bottom plate.

In a preferred embodiment, the inside of the air inlet strip is provided with a ventilation cavity, a plurality of fixing strips are all communicated with the ventilation cavity, a gas channel is arranged in the fixing strips, and air holes reserved at the bottom of the sensor mounting hole are all communicated with the gas channel.

In a preferred embodiment, the guide rails are fixedly arranged on the bottom plate, and the clamping rods in the push-pull clamp are connected with the side walls of the T-shaped plate.

In a preferred embodiment, a support plate is fixedly arranged on the left side of the bottom plate, a PCB integrated board is fixedly arranged on one side of the support plate, and the plugs are electrically connected with the PCB integrated board.

In a preferred embodiment, the upper walls at two ends of the fixing strip are fixedly connected with positioning plates, an auxiliary positioning plate is fixedly arranged on the bottom plate between the two fixing strips, threaded holes are formed in the positioning plate and the auxiliary positioning plate, and a pressing assembly is covered above the two fixing strips.

In a preferred embodiment, the pressing assembly comprises a pressing plate, the pressing plate is provided with a unthreaded hole corresponding to the threaded hole, fastening bolts are arranged on the unthreaded hole, and the pressing plate is fixedly arranged on the positioning plate and the auxiliary positioning plate through a plurality of fastening bolts.

In a preferred embodiment, the fastening bolt has a handle thereon.

In a preferred embodiment, the air inlet strip is provided with an air inlet communicated with the ventilation cavity, and one side of the fixing strip is provided with an air outlet communicated with the air channel.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. according to the utility model, the detection ends in the urea sensors to be detected are inserted into the sensor mounting holes, the urea sensors are positioned by the pressing plates, the handles in the push-pull clamps on the two sides are pulled by two hands to drive the clamping rods to move, the plugs are aligned with the plug-in parts of the sensors one by the pushing force of the clamping rods, so that the electrical connection between the sensors and the control ends is completed, then constant pressure gas is discharged into the ventilation cavity through the air inlet strip, corresponding pressure data are acquired through the sensors, and then compared with the data of the control ends, one-time detection operation can be completed, the urea sensors can be calibrated in batches, the structure is simple, the operation is convenient, and the overall working efficiency can be greatly improved.

2. In the utility model, the pressure in each sensor mounting cavity is consistent, so that the pressure stabilization test can be performed at the temperature of-40 ℃ to 120 ℃, and the use state of the sensor at low temperature and high temperature can be tested.

Drawings

FIG. 1 is a schematic perspective view of the present utility model with the compression assembly removed entirely;

FIG. 2 is an enlarged schematic perspective view of the structure of FIG. 1 at A;

FIG. 3 is a schematic diagram of the overall three-dimensional structure of the present utility model;

fig. 4 is a schematic perspective view of a compression assembly according to the present utility model.

The marks in the figure: 1-fixing frame, 2-plug board, 3-bottom plate, 4-gas vent, 5-locating plate, 6-fixed strip, 7-auxiliary locating plate, 8-sensor mounting hole, 9-guide rail, 10-guide rail slider, 11-gas vent, 12-screw hole, 13-T shaped plate, 14-push-pull fixture, 141-clamping bar, 15-plug, 16-compression component, 161-fastening bolt, 162-clamp plate, 17-PCB integrated plate, 18-air inlet strip.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-4, a high-efficiency urea sensor debugging and detecting tool comprises a bottom plate 3, a plurality of T-shaped plates 13 and a guide rail 9, wherein a plurality of groups of fixing strips 6 are arranged on the upper wall of the bottom plate 3, a plurality of sensor mounting holes 8 are transversely and uniformly formed in the upper wall of the fixing strips 6, urea sensors to be detected can be combined together through the sensor mounting holes 8, 4 fixing strips 6 are preferred, the number of the sensor mounting holes 8 is preferably designed to be 8, 32 sensors can be detected at one time, and the number of the sensor mounting holes can be increased or decreased according to actual conditions.

The size and shape of the sensor mounting hole 8 are the same as the shape and size of the collecting end of the urea sensor, and in order to ensure tightness, an O-shaped sealing ring is mounted in the sensor mounting hole 8.

In this embodiment, the equal fixedly connected with locating plate 5 of both ends upper wall of fixed strip 6, set firmly auxiliary locating plate 7 on bottom plate 3 between two fixed strips 6, screw hole 12 has all been seted up on locating plate 5 and the auxiliary locating plate 7, the top cover of two fixed strips 6 is equipped with compressing tightly subassembly 16, compressing tightly subassembly 16 is including clamp plate 162, clamp plate 162 corresponds screw hole 12 and is equipped with unthreaded hole, all be equipped with fastening bolt 161 on the unthreaded hole, clamp plate 162 passes through a plurality of fastening bolt 161 fixed mounting on locating plate 5 and auxiliary locating plate 7, after the urea sensor is put into sensor mounting hole 8, with clamp plate 162 support directly over the urea sensor, then fix clamp plate 162 in fixed strip 6 top through fastening bolt 161, thereby accomplish the location operation to the urea sensor, when the pressurization, can prevent that the urea sensor from popping out.

In this embodiment, the side of a plurality of fixed strips 6 all is provided with mount 1, mount 1 is close to all has set firmly on the lateral wall of fixed strip 6 and connects plug board 2, connect plug board 2 to have set firmly a plurality of plug 15, and connect plug 15 and the quantity and the position one-to-one of sensor mounting hole 8, the both ends of two mounts 1 link to each other with a T shaped plate 13 respectively, the one end fixedly connected with guide rail slider 10 of mount 1 is kept away from to T shaped plate 13, guide rail slider 10 slides and connects on guide rail 9, the one end of guide rail slider 10 is equipped with push-and-pull anchor clamps 14, when detecting, at first install the sensor on corresponding sensor mounting hole 8, fix a position the sensor through compressing tightly subassembly 16, then both hands pull the handle in the push-and-pull anchor clamps 14 of both sides, alright drive clamp lever 141 and remove, thereby drive T shaped plate 13, can aim at the plug 15 the portion of inserting of sensor one by one, thereby accomplish the electrical connection of sensor and wiring operation this moment.

In this embodiment, the guide rails 9 are fixedly installed on the bottom plate 3, the clamping rods 141 in the push-pull clamp 14 are connected with the side walls of the T-shaped plate 13, and through the cooperation of the guide rails 9 and the guide rail sliding blocks 10, an auxiliary guiding effect can be achieved for the movement of the fixing frame 1, and when the clamping rods 141 move forwards or backwards, the corresponding guide rail sliding blocks 10 and the T-shaped plate 13 are driven to move.

The push-pull clamp 14 is a common element in the prior art, and the specific structure is not specifically described, and the model of the push-pull clamp 14 is preferably CH-305-HM.

It should be noted that, the connection port of the urea sensor and the plug 15 are on the same horizontal line (not shown in the figure, i.e., the connection port is located in a lateral direction), so that the plug 15 can be inserted into the connection port of the urea sensor during the process of moving to one side of the urea sensor, thereby completing the connection operation.

In this embodiment, the bottom of the bottom plate 3 has set firmly the air inlet strip 18, be equipped with the ventilation chamber in the air inlet strip 18, a plurality of fixed strips 6 all are linked together with the ventilation chamber, set up gas passage in the fixed strip 6, the gas pocket 11 that the sensor mounting hole 8 bottom was reserved all is linked together with gas passage, be equipped with the air inlet that is linked together with the ventilation chamber on the air inlet strip 18, the gas vent 4 that is linked together with gas passage has been seted up to one side of fixed strip 6, after the sensor is installed and the wiring, let in the constant pressure gas through air inlet strip 18 to the ventilation chamber, then gas flows into in the sensor mounting hole 8 along gas passage and gas pocket 11, alright gather corresponding pressure data through the sensor this moment, then in transferring the data to the control end, alright compare with the data of control end, thereby accomplish a detection operation.

The gas channels are communicated with the sensor mounting holes 8, so that the same air pressure in the sensor mounting holes 8 can be ensured, the pressure stabilization test can be performed at the temperature of-40 ℃ to 120 ℃, and the use states of a plurality of sensors at low temperature and high temperature can be simultaneously tested.

It should be noted that, one end of the air inlet is connected to an air pump (not shown) with a barometer and a connecting pipe, and air (preferably 9 bar) is discharged into the air inlet bar 18 by the air pump, solenoid valves (not shown) are arranged on one side of the air outlet 4 and on the connecting pipe, and when detecting, the solenoid valves on the air outlet 4 are closed, and the inside is in a sealed state.

In this embodiment, the bottom left side of bottom plate 3 has set firmly the extension board, and one side fixed mounting of extension board has PCB integrated board 17, and plug 15 all is connected with PCB integrated board 17 electricity, and PCB integrated board 17 is connected (not shown in the figure) with the PLC end electricity of external area display screen, can receive the data that urea sensor gathered through PCB integrated board 17, then with the data transmission who gathers to the PLC end, can very audio-visual look over the precision gap of different sensors through the display screen that has to conveniently find OK article and NG article.

In this embodiment, the fastening bolt 161 is provided with a handle, and the fastening bolt 161 can be rotated conveniently by the provided handle.

Firstly, the detection ends of a plurality of urea sensors to be detected are inserted into the sensor mounting holes 8, after the urea sensors are placed in the sensor mounting holes, the pressing plate 162 is propped against the position right above the urea sensors, then the pressing plate 162 is fixed above the fixing strip 6 through the fastening bolts 161, so that the urea sensors are positioned, then the handles in the push-pull clamps 14 on the two sides are pulled by two hands, the clamping rods 141 can be driven to move, the T-shaped plates 13 and the guide rail sliding blocks 10 are driven to move, in the moving process of the T-shaped plates 13, the plug 15 is aligned with the plug-in parts of the sensors one by one, thus the electric connection of the sensors and the control ends is completed, then constant pressure gas is discharged into the ventilation cavity through the air inlet strips 18, then the gas flows into the sensor mounting holes 8 along the gas channels, corresponding pressure data can be acquired through the sensors at this moment, and then the operation of a plurality of sensors can be realized by one-time compared with the data of the control ends, and the working efficiency can be greatly improved.

Meanwhile, the pressure in the cavity of each sensor mounting hole 8 is consistent, so that the pressure stabilizing test can be performed at the temperature of-40 ℃ to 120 ℃, and the use states of a plurality of sensors at low temperature and high temperature can be simultaneously tested.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a high-efficient urea sensor debugging detects frock, includes bottom plate (3), a plurality of T shaped plate (13) and guide rail (9), its characterized in that: the upper wall of the bottom plate (3) is provided with a plurality of groups of fixing strips (6), and a plurality of sensor mounting holes (8) are transversely and uniformly formed in the upper wall of the fixing strips (6);

the side surfaces of the fixing strips (6) are provided with fixing frames (1), one side wall, close to the fixing strips (6), of each fixing frame (1) is fixedly provided with a plug board (2), the plug boards (2) are fixedly provided with a plurality of plugs (15), and the plugs (15) correspond to the sensor mounting holes (8) in number and position one by one;

two ends of the two fixing frames (1) are respectively connected with a T-shaped plate (13), one end, far away from the fixing frames (1), of each T-shaped plate (13) is fixedly connected with a guide rail sliding block (10), each guide rail sliding block (10) is connected onto a guide rail (9) in a sliding manner, and one end of each guide rail sliding block (10) is provided with a push-pull clamp (14);

an air inlet strip (18) is fixedly arranged at the bottom of the bottom plate (3).

2. The efficient urea sensor debugging and detecting tool as set forth in claim 1, wherein: the inside of the air inlet strip (18) is provided with an air ventilation cavity, a plurality of fixing strips (6) are communicated with the air ventilation cavity, an air channel is arranged in the fixing strips (6), and air holes (11) reserved at the bottom of the sensor mounting hole (8) are communicated with the air channel.

3. The efficient urea sensor debugging and detecting tool as set forth in claim 1, wherein: the guide rails (9) are fixedly arranged on the bottom plate (3), and clamping rods (141) in the push-pull clamp (14) are connected with the side walls of the T-shaped plates (13).

4. The efficient urea sensor debugging and detecting tool as set forth in claim 1, wherein: the bottom left side of bottom plate (3) has set firmly the extension board, one side fixed mounting of extension board has PCB integrated board (17), connect plug (15) all with PCB integrated board (17) electricity connection.

5. The efficient urea sensor debugging and detecting tool as set forth in claim 1, wherein: the two ends upper wall of fixed strip (6) all fixedly connected with locating plate (5), two fix a position locating plate (7) on bottom plate (3) between fixed strip (6), threaded hole (12) have all been seted up on locating plate (5) and the locating plate (7), two the top cover of fixed strip (6) is equipped with compression subassembly (16).

6. The efficient urea sensor debugging and detecting tool according to claim 5, wherein: the pressing assembly (16) comprises a pressing plate (162), the pressing plate (162) is provided with a unthreaded hole corresponding to the threaded hole (12), fastening bolts (161) are arranged on the unthreaded hole, and the pressing plate (162) is fixedly arranged on the positioning plate (5) and the auxiliary positioning plate (7) through the fastening bolts (161).

7. The efficient urea sensor debugging and detecting tool as set forth in claim 6, wherein: the fastening bolt (161) is provided with a handle.

8. The efficient urea sensor debugging and detecting tool as set forth in claim 2, wherein: an air inlet communicated with the ventilation cavity is formed in the air inlet strip (18), and an air outlet (4) communicated with the air channel is formed in one side of the fixing strip (6).