CN218412422U

CN218412422U - Nitrogen oxygen sensor distribution frock

Info

Publication number: CN218412422U
Application number: CN202221769255.0U
Authority: CN
Inventors: 闫聪; 倪鹏
Original assignee: Xuzhou Xinyuan Chengda Sensor Technology Co ltd
Current assignee: Xuzhou Xinyuan Chengda Sensor Technology Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2023-01-31
Anticipated expiration: 2032-07-11

Abstract

The utility model discloses a nitrogen oxygen sensor distribution frock, comprising a base plate, be equipped with several detachable cavity on the bottom plate, the inside cavity of every cavity, and the top all is equipped with the probe mounting hole, every cavity both sides are equipped with gaseous plug, gaseous plug between two adjacent cavities passes through the detachable intercommunication of pipe, several cavity one side is equipped with pressure equipment mechanism, adopt and to dismantle independent cavity design, the size is less, the cavity inner space is little, gas can be full of the cavity fast, keep atmospheric pressure's stability, improve efficiency of software testing, the gaseous total amount that uses has reduced 70% in the test, improve gas utilization by a wide margin, and it is more convenient when maintenance and change, to the product of other models, only need to change the cavity that corresponds, can test with the mark simultaneously, compatibility is better.

Description

Nitrogen oxygen sensor distribution frock

Technical Field

The utility model relates to a nitrogen oxygen sensor distribution field specifically relates to a nitrogen oxygen sensor distribution frock.

Background

A nitrogen oxide sensor (NOx sensor), referred to as NOx sensor for short, is a sensor for detecting the content of nitrogen oxides (NOx) such as N2O, NO2, N2O3, N2O4, N2O5, etc. in engine exhaust. NOx sensors can be classified according to their operating principle into electrochemical, optical and other principles. The method comprises the steps of utilizing the conductivity of a solid electrolyte yttria-doped zirconia (YSZ) ceramic material to oxygen ions, the selective catalytic sensitivity of a special NOx sensitive electrode material to NOx gas, combining a special sensor structure to obtain an electrical signal of NOx, and finally utilizing a special weak signal detection and precise electric control technology to detect the NOx gas in automobile exhaust and convert the NOx gas into a standard CAN bus digital signal.

At present, as shown in fig. 1, in the existing gas distribution tool for the nitrogen-oxygen sensor, the cavity 9 is an integrated body, once a local weld of the cavity 9 leaks gas, the whole cavity needs to be taken down for replacement and maintenance, and the disassembly and the replacement are inconvenient; the cavity 9 for storing gas is large, so that the time for filling the cavity 9 with gas is long, the stability of gas pressure is poor, the utilization rate of gas is low, the testing efficiency is low, and in the testing process, only the model of the nitrogen-oxygen sensor with a specific size can be installed, and the compatibility is poor; the PTFE gasket is adopted for sealing, the gap between the PTFE gasket and a sealing surface is large, the sealing effect is poor, and the testing precision is poor.

Disclosure of Invention

An object of the utility model is to provide a nitrogen oxygen sensor distribution frock to nitrogen oxygen sensor distribution frock in solving the background art, the size is great, and the dismouting is inconvenient, and gas utilization is rateed lowly, compatible poor problem.

In order to achieve the purpose, the utility model discloses a nitrogen oxygen sensor distribution frock's specific technical scheme as follows:

the utility model provides a nitrogen oxygen sensor distribution frock, includes the bottom plate, is equipped with several detachable cavity on the bottom plate, every the inside cavity of cavity, and the top all is equipped with probe mounting hole, every the cavity both sides are equipped with gaseous plug, and the gaseous plug between two adjacent cavities passes through the detachable intercommunication of pipe, cavity one side is equipped with pressure equipment and constructs.

Furthermore, a clamping groove is formed in the bottom plate, and the plurality of cavities are arranged in a straight line shape and are clamped in the clamping groove.

Furthermore, a silica gel sealing ring is matched in the probe mounting hole.

Further, the conduit is a rubber hose.

Further, the gas plug is screwed on two sides of the chamber.

Furthermore, the bottom plate is provided with fixing holes close to four corners.

Further, the press-fitting mechanism comprises a fixing block, and clamps which correspond to the plurality of cavities one to one are arranged on the fixing block.

The utility model has the advantages that:

1. this frock is through being provided with several detachable cavity, the cavity both sides are equipped with gaseous plug, and gaseous plug between two adjacent cavities passes through the detachable intercommunication of pipe, adopt and to dismantle independent cavity design, the size is less, the cavity inner space is little, it is gaseous can be full of the cavity fast, keep the stability of atmospheric pressure, improve the efficiency of software testing, the gaseous total amount that uses in the test has reduced 70%, improve gas utilization by a wide margin, and it is more convenient when maintenance and change, to the product of other models, only need to change the cavity that corresponds, can test with the mark simultaneously, the compatibility is better.

2. The probe mounting hole is internally matched with a silica gel sealing ring, and the silica gel sealing ring is used for sealing, so that the elasticity is good, the silica gel sealing ring can be better attached to a sealing surface, the leakage amount of gas is reduced, and the testing precision is improved; the conduit is a rubber hose, and has good flexibility, strong extensibility, low price and cost saving.

Drawings

FIG. 1 is a prior art schematic;

FIG. 2 is a schematic view of the overall structure of the present invention;

in the figure: 1. the device comprises a bottom plate, a cavity 2, a probe mounting hole 3, a gas plug 4, a guide pipe 5, a press-fitting mechanism 6, a fixing block 61, a clamp 62, a silica gel sealing ring 7, a fixing hole 8 and a cavity 9.

The specific implementation mode is as follows:

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

As shown in fig. 2, design a nitrogen oxygen sensor distribution frock, comprising a base plate 1, be equipped with several detachable cavity 2 on the bottom plate 1, cavity 2 is the square, 2 inside hollows in every cavity, and the top all is equipped with

probe mounting hole

3, 2 both sides in every cavity are equipped with gaseous plug 4, gaseous plug 4 between two adjacent cavities 2 passes through the detachable intercommunication of

pipe

5, 2 one side in cavity is equipped with pressure equipment mechanism 6, pressure equipment mechanism 6 effect is used for pressing from both sides tight nitrogen oxygen sensor of holding down, when the probe on the nitrogen oxygen sensor passes through probe mounting hole 3 and inserts to cavity 2 in the test, guarantee that it does not rock, until accomplishing the test.

Wherein, through being provided with several

detachable cavity

2, 2 both sides of cavity are equipped with gaseous plug 4, and gaseous plug 4 between two adjacent cavities 2 passes through the detachable intercommunication of pipe 5, adopt the design of detachable independent cavity 2, and communicate mutually through the pipe 5 is detachable, cavity 2 size is less, the inner space is little, gas can be full of cavity 2 fast, keep atmospheric pressure stable, and the efficiency of software testing is improved, the gaseous total amount that uses has reduced 70% in the test, improve gas utilization by a wide margin, and it is more convenient when maintenance and change, to the product of other models, only need to change corresponding cavity 2, can test the mark with the while, compatibility is better.

As shown in fig. 2, a clamping groove is formed in the bottom plate 1, the plurality of cavities 2 are arranged in a line shape and are all clamped in the clamping groove, and the clamping mode is adopted for installation, so that the disassembly and replacement are convenient, and the time is saved; the silica gel sealing ring 7 is matched in the probe mounting hole 3, and the probe mounting hole is sealed by using the silica gel sealing ring 7, so that the elasticity is good, the probe mounting hole can be better attached to a sealing surface, the leakage amount of gas is reduced, and the testing precision is improved; the conduit 5 is a rubber hose, has good flexibility and strong extensibility, is cheap and saves cost; the gas plug 4 and the cavity 2 are integrally formed, so that the gas tightness is good, but the gas plug 4 is not easy to replace when damaged, preferably, the gas plug 4 is screwed on the two sides of the cavity 2, and when the gas plug 4 needs to be replaced or cleaned, the gas plug is convenient to disassemble, saves the cost and has good gas tightness; fixing holes 8 are formed in the four corners of the bottom plate 1, and bolts are used for fixing the bottom plate 1 through the fixing holes 8, so that the bottom plate is prevented from inclining and shaking to cause test deviation, and reliability is improved; pressure equipment mechanism 6 includes fixed block 61, is equipped with on the fixed block 61 with the anchor clamps 62 of several 2 one-to-one in the cavity, anchor clamps 62 can be dismantled through the bolt and fix on fixed block 61, convenient change, anchor clamps 62 are used for pressing from both sides tightly to push down the nitrogen oxygen sensor, do not rock when guaranteeing its test.

Theory of operation and use flow, at first, according to the model and the quantity of the oxynitride sensor who will test, select cavity 2 of suitable size and quantity, then be linked together cavity 2 through pipe 5 in proper order, then insert the gas distribution pipe from the gas pitcher to the gaseous quick connector 4 at frock both ends, make the quick connector 4 at frock both ends closely laminate with the gas distribution pipeline, toward 2 interior gas injections of cavity, then press from both sides tightly through anchor clamps 62 and push down the oxynitride sensor, insert the probe on the oxynitride sensor to cavity 2 in through probe mounting hole 3, guarantee it and not rock, until accomplishing the test.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. The utility model provides a nitrogen oxygen sensor distribution frock, includes bottom plate (1), its characterized in that, be equipped with several detachable cavity (2), every on bottom plate (1) cavity (2) inside cavity, and the top all is equipped with probe mounting hole (3), every cavity (2) both sides are equipped with gaseous plug (4), and gaseous plug (4) between two adjacent cavities (2) are through the detachable intercommunication of pipe (5), cavity (2) one side is equipped with pressure equipment mechanism (6).

2. The distribution tool of the nitrogen-oxygen sensor according to claim 1, wherein a clamping groove is formed in the bottom plate (1), and the plurality of chambers (2) are arranged in a straight line and are clamped in the clamping groove.

3. The distribution tool of the nitrogen-oxygen sensor as claimed in claim 1, wherein a silica gel sealing ring (7) is adapted in the probe mounting hole (3).

4. A nitrogen oxygen sensor gas distribution tooling as claimed in claim 1, wherein the conduit (5) is a rubber hose.

5. A distribution tool of a nitrogen-oxygen sensor according to claim 1, characterized in that the gas plug (4) is screwed on both sides of the chamber (2).

6. The distribution tool of the nitrogen-oxygen sensor as claimed in claim 1, wherein the bottom plate (1) is provided with fixing holes (8) near four corners.

7. The distribution tool of the nitrogen-oxygen sensor according to claim 1, wherein the press-fitting mechanism (6) comprises a fixing block (61), and clamps (62) corresponding to the plurality of chambers (2) one by one are arranged on the fixing block (61).