CN218180782U

CN218180782U - Nitrogen-oxygen sensor with air inlet protection function

Info

Publication number: CN218180782U
Application number: CN202221758465.XU
Authority: CN
Inventors: 郭宇航
Original assignee: Hubei Bonner Electronics Technology Co ltd
Current assignee: Hubei Bonner Electronics Technology Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-12-30
Anticipated expiration: 2032-07-08

Abstract

The utility model discloses a nitrogen oxygen sensor with protection of admitting air, including the nitrogen oxygen sensor body, nitrogen oxygen sensor body upper end sets up the inlet end, and the inlet end sets up first threaded sleeve, and nitrogen oxygen sensor body top sets up gaseous rose box, and gaseous rose box one side is seted up the air inlet, and the gas outlet is seted up to the opposite side, and gas outlet department installs second threaded sleeve, threaded installation inlet pipe between first threaded sleeve and the second threaded sleeve, and gas inlet department installs the trachea, the utility model discloses structural design is novel, can carry out the edulcoration to the gas that gets into the nitrogen oxygen sensor and filter, prevents to appear blocking phenomenon, realizes the purpose of the protection of admitting air, and then improves and detect the accuracy.

Description

Nitrogen-oxygen sensor with air inlet protection function

Technical Field

The utility model relates to a nitrogen oxygen sensor technical field specifically is a nitrogen oxygen sensor with protection of admitting air.

Background

The nitrogen-oxygen sensor used in the automobile detection industry belongs to consumables in an exhaust gas analyzer, and all domestic manufacturers for producing exhaust gas analyzers adopt the nitrogen-oxygen sensor of CITY company. The product is universally used for 4 and 5 gas waste gas analyzers produced by different manufacturers and 0-degree waste gas analyzers in automobile environmental protection detection.

The existing nitrogen-oxygen sensor contains a large amount of impurity particles in the air intake, which easily causes air pipe blockage and affects the detection precision, so that a nitrogen-oxygen sensor with air intake protection is needed to be designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a nitrogen oxygen sensor with air intake protection to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a nitrogen oxygen sensor with protection of admitting air, includes the nitrogen oxygen sensor body, nitrogen oxygen sensor body upper end sets up the inlet end, and the inlet end sets up first threaded sleeve, nitrogen oxygen sensor body top sets up gas filtration case, gas filtration case sets up the air inlet in one side, and the gas outlet is seted up to the opposite side, gas outlet department installation second threaded sleeve, screw thread installation air inlet pipe between first threaded sleeve and the second threaded sleeve, air inlet department installation trachea.

Preferably, the application provides a nitrogen oxygen sensor with protection of admitting air, wherein, the vertical slot is seted up to gas filter box inner chamber, insert the filter screen subassembly in the vertical slot.

Preferably, the application provides a nitrogen oxygen sensor with protection of admitting air, wherein, the filter screen subassembly includes screen frame, first thin steel wire net, filters cotton layer and the thin steel wire net of second, first thin steel wire net, filter cotton layer and the thin steel wire net of second are installed in proper order in the screen frame.

Preferably, the application provides a nitrogen oxygen sensor with air intake protection, wherein, the air pipe is provided with an opening and closing valve.

Preferably, the nitrogen-oxygen sensor with air inlet protection is provided, wherein a gas flow regulating valve is mounted on the air inlet pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses structural design is novel, can carry out the edulcoration to the gas that gets into the nitrogen oxygen sensor and filter, prevents the blocking phenomenon from appearing, realizes the purpose of the protection of admitting air, and then improves and detect the accuracy.

Drawings

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

FIG. 2 is a schematic view of the filter screen assembly of the present invention;

in the figure: nitrogen oxygen sensor body 1, first threaded sleeve 2, gas filtration case 3, second threaded sleeve 4, intake pipe 5, trachea 6, vertical slot 7, filter screen subassembly 8, screen frame 9, first thin steel wire net 10, filter cotton layer 11, second thin steel wire net 12, switching valve 13, gas flow control valve 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a nitrogen oxygen sensor with protection of admitting air, includes nitrogen

oxygen sensor body

1, 1 upper end of nitrogen oxygen sensor body sets up the inlet end, and the inlet end sets up first threaded

sleeve

2, 1 top of nitrogen oxygen sensor body sets up gas filtration case 3, the gas outlet is seted up to gas filtration case 3 one side, and the gas outlet is seted up to the opposite side, gas outlet department installation second threaded sleeve 4, threaded installation intake pipe 5 between first threaded sleeve 2 and the second threaded sleeve 4, gas inlet department installation trachea 6, trachea 6 department installation switching valve 13, installation gas flow control valve 14 on the intake pipe 5.

In the utility model, a longitudinal slot 7 is arranged in the inner cavity of the gas filtering box 3, and a filtering net component 8 is inserted into the longitudinal slot 7; the filter screen assembly 8 comprises a screen frame 9, a first fine steel wire mesh 10, a filter cotton layer 11 and a second fine steel wire mesh 12, wherein the first fine steel wire mesh 10, the filter cotton layer 11 and the second fine steel wire mesh 12 are sequentially arranged in the screen frame 9.

The working principle is as follows: in the gaseous advanced gaseous filter case that goes into before getting into the nitrogen oxygen sensor, gaseous filter screen subassembly filters and gets into the nitrogen oxygen sensor behind large granule and the tiny particle impurity, can prevent that the foreign particles from blockking up the intake pipe.

To sum up, the utility model discloses structural design is novel, can carry out the edulcoration to the gas that gets into the nitrogen oxygen sensor and filter, prevents blocking phenomenon, realizes the purpose of the protection of admitting air, and then improves and detect the accuracy.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A nitrogen oxygen sensor with intake protection, includes nitrogen oxygen sensor body (1), its characterized in that: the utility model discloses a nitrogen oxygen sensor, including nitrogen oxygen sensor body (1), gas outlet, gas inlet, gas outlet, nitrogen oxygen sensor body (1) upper end sets up the inlet end, and the inlet end sets up first threaded sleeve (2), nitrogen oxygen sensor body (1) top sets up gas filtration case (3), gas filtration case (3) one side is seted up the air inlet, and the gas outlet is seted up to the opposite side, gas outlet department installation second threaded sleeve (4), screw thread installation inlet pipe (5) between first threaded sleeve (2) and second threaded sleeve (4), gas inlet department installation trachea (6).

2. The nitrogen-oxygen sensor with intake protection as claimed in claim 1, wherein: the inner cavity of the gas filtering box (3) is provided with a longitudinal slot (7), and a filter screen component (8) is inserted into the longitudinal slot (7).

3. The nitrogen-oxygen sensor with intake protection as claimed in claim 2, wherein: the filter screen assembly (8) comprises a screen frame (9), a first fine steel wire mesh (10), a filter cotton layer (11) and a second fine steel wire mesh (12), wherein the first fine steel wire mesh (10), the filter cotton layer (11) and the second fine steel wire mesh (12) are sequentially arranged in the screen frame (9).

4. The nitrogen-oxygen sensor with intake protection as claimed in claim 1, wherein: and an opening and closing valve (13) is arranged at the air pipe (6).

5. The nitrogen-oxygen sensor with intake protection as claimed in claim 1, wherein: and the air inlet pipe (5) is provided with an air flow regulating valve (14).