CN219777637U

CN219777637U - Easily-replaced gas sensor probe assembly

Info

Publication number: CN219777637U
Application number: CN202321183981.9U
Authority: CN
Inventors: 魏佳敏; 汪志远; 王增; 厉恺杰
Original assignee: Zhejiang Viewshine Intelligent Meter Co Ltd
Current assignee: Zhejiang Viewshine Intelligent Meter Co Ltd
Priority date: 2023-05-17
Filing date: 2023-05-17
Publication date: 2023-09-29
Anticipated expiration: 2033-05-17

Abstract

The utility model relates to an easily-replaced gas sensor probe assembly, which comprises a shell, a gasket, a clamping ring and a probe, wherein the shell is provided with a plurality of grooves; the clamping ring is assembled in front of the shell, the probe is assembled in front of the gasket, the gasket is assembled in the shell, and the rear end of the shell is connected with the PCB adapter plate; the utility model has simple structure, the socket of the PCB adapter plate can be directly connected with the gauge outfit by connecting the PCB adapter plate at the rear end of the shell, the probe can be replaced only by pulling out the corresponding plug on the socket, the gauge outfit is not required to be opened, and the installation efficiency is improved.

Description

Easily-replaced gas sensor probe assembly

Technical Field

The utility model belongs to the technical field of gas sensors, and particularly relates to an easily-replaced gas sensor probe assembly.

Background

A gas sensor is a transducer that converts a certain gas volume fraction into a corresponding electrical signal. The probe in the gas sensor is electrically connected with the gas detector through a wire to detect the gas sample. The existing gas sensor probe is easy to be extruded and damaged due to external force in the use process, and the service life is greatly reduced due to no good protection measures, so that the gas sensor probe needs to be replaced frequently. And the gauge outfit part needs to be opened when the sensor probe is replaced, and the process is too tedious.

In view of the above-described problems, improvements are needed.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides the gas sensor probe assembly which is simple and reasonable in structure, ingenious in design, convenient and practical and easy to replace.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: an easily replaced gas sensor probe assembly comprises a shell, a gasket, a clamping ring and a probe; the snap ring is assembled in the front of the shell, the probe is assembled in the front of the gasket, the gasket is assembled in the shell, and the rear end of the shell is connected with the PCB adapter plate.

As a preferred mode of the utility model, the clamping ring is in interference fit with the shell.

As a preferable mode of the utility model, a plurality of annular grooves are arranged on the outer wall of the shell, and O-shaped rings are sleeved on the annular grooves.

In a preferred embodiment of the present utility model, the housing and the retainer ring are made of metal.

As a preferable mode of the utility model, the probe is provided with a wire, a first threading hole is formed in the middle of the gasket, a second threading hole is formed in the middle of the shell, and the wire sequentially passes through the first threading hole and the second threading hole to be penetrated out and is used for connecting the PCB adapter plate.

As a preferred mode of the present utility model, the centers of the first threading hole and the second threading hole are relatively coincident.

As a preferable mode of the utility model, a groove is formed in the gasket, a second round hole matched with the groove is formed on the shell, and the groove coincides with the axis of the second round hole.

In a preferred embodiment of the present utility model, the gasket is made of nitrile rubber or silica gel.

As a preferable mode of the utility model, an annular step is arranged at the rear of the shell, and the PCB adapter plate is assembled in the annular step.

As an optimal mode of the utility model, the PCB adapter plate is of a semicircular structure, and a socket is connected to the PCB adapter plate.

The beneficial effects of the utility model are as follows:

1. the utility model has simple structure, the socket of the PCB adapter plate can be directly connected with the gauge outfit by connecting the PCB adapter plate at the rear end of the shell, the probe can be replaced only by pulling out the corresponding plug on the socket, the gauge outfit is not required to be opened, and the installation efficiency is improved.

2. The gas sensor probe assembly is ingenious in design, and the inner part of the center of the gasket is hollowed to relieve the axial external force applied to the probe, so that the probe is axially protected; the shell and the clamping ring are made of metal materials, so that the direct extrusion of the probe is reduced, the protection is performed, and the shell and the clamping ring are in interference fit. The design makes production assembly more convenient, reduces production loss reporting rate, improves process flexibility and improves production efficiency.

Drawings

FIG. 1 is a perspective view of a structure of an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an embodiment of the present utility model;

FIG. 3 is an exploded view of an embodiment of the present utility model;

FIG. 4 is a front view of an embodiment of the present utility model;

FIG. 5 is a top view of an embodiment of the present utility model;

reference numerals in the drawings: the probe comprises a probe 1, a wire 1-A, a clamping ring 2, a gasket 3, a first threading hole 3-A, a groove 3-B, a shell 4, an annular groove 4-A, an annular step 4-B, a first round hole 4-C, a second round hole 4-D, a second threading hole 4-E, a PCB adapter plate 5, a socket 5-A and an O-shaped ring 6.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Examples:

as shown in fig. 1-5, an easily replaceable gas sensor probe assembly comprises a housing 4, a gasket 3, a snap ring 2 and a probe 1; the clamping ring 2 is assembled in front of the shell 4, the probe 1 is assembled in front of the gasket 3, the end face of the probe is guaranteed to be attached, the gasket 3 is assembled in the shell 4, the end faces are aligned, and the inner groove 3-B of the gasket 3 is aligned with the second round hole 4-D on the shell 4; the rear end of the shell 4 is connected with a PCB adapter plate 5; the utility model has simple structure, the rear end of the shell 4 is connected with the PCB adapter plate 5, the socket 5-A of the PCB adapter plate 5 can be directly connected with the gauge outfit, the probe can be replaced only by pulling out the corresponding plug on the socket, the gauge outfit is not required to be opened, and the installation efficiency is improved.

The gas sensor probe assembly can avoid extrusion damage caused by external force in the use process, so that the service life is greatly reduced, and the gas sensor probe needs to be frequently replaced; and the probe needs to be opened for replacing the probe, so that the probe can be replaced without opening the probe through the PCB adapter plate 5.

Specifically, according to the gas sensor probe assembly disclosed by the utility model, the gasket 3 can slow down the axial external force applied to the probe 1, so that the probe is axially protected; the shell 4 and the clamping ring 2 are made of metal materials, so that the direct extrusion of the probe 1 is reduced, the protection is performed, and the shell 4 and the clamping ring 2 are in interference fit; the design makes production assembly more convenient, reduces production loss reporting rate, improves process flexibility and improves production efficiency.

The snap ring 2 is made of metal, so that the outer wall of the shell 4 can be supported when being extruded, direct extrusion of the probe 1 is reduced, and protection is achieved.

Specifically, the internal structure of the gasket 3 is designed to be hollowed, so that the axial external force applied to the probe can be relieved, and the probe is axially protected; meanwhile, the gasket 3 is made of nitrile rubber or silica gel. Has the effects of vibration resistance (can slow down the axial external force applied to the probe, has the function of protecting the probe axially), corrosion resistance and ageing resistance.

The inside of the gasket 3 is provided with a groove 3-B, the shell 4 is provided with a second round hole 4-D which is matched with the groove 3-B, the groove 3-B coincides with the axis of the second round hole 4-D, and the end face of the groove is guaranteed to be attached. The internal pressure of the probe can be balanced, and the phenomenon of inaccurate measurement precision caused by large pressure in the pipeline and extrusion of the probe is reduced.

The outer wall of the shell 4 is provided with a plurality of annular grooves 4-A, the annular grooves 4-A are sleeved with O-shaped rings 6, and the O-shaped rings 6 are placed through the annular grooves 4-A and are used for sealing in a shaft sealing mode with the outer wall.

The probe 1 is provided with a lead 1-A, a first threading hole 3-A is formed in the middle of the gasket 3, a second threading hole 4-E is formed in the middle of the shell 4, and the lead 1-A sequentially passes through the first threading hole 3-A and the second threading hole 4-E and is used for connecting the PCB adapter plate 5, wherein the centers of the first threading hole 3-A and the second threading hole 4-E are relatively coincident; the PCB adapter plate 5 is fixed behind the shell 4 through screws after being connected with the lead 1-A on the probe 1.

An annular step 4-B is arranged at the rear of the shell 4, the PCB adapter plate 5 is assembled in the annular step 4-B, and the PCB adapter plate 5 placed in the annular step 4-B is screwed and fixed by using a fixing screw.

The shell 4 is made of stainless steel, and the stainless steel has the advantages of high strength, difficult deformation and capability of protecting the probe from damage. Has beautiful appearance, and has the effects of corrosion resistance and aging resistance.

A first round hole 4-C is arranged above the shell 4 and is used for hooking out by using a crochet hook when the probe is replaced.

The PCB adapter plate 5 is of a semicircular structure, and the PCB adapter plate 5 is connected with a socket 5-A, wherein the semicircular structure of the PCB adapter plate 5 and the second threading hole 4-E form a notch for pouring glue.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the reference numerals in the figures are used more herein: the probe 1, the lead 1-A, the snap ring 2, the gasket 3, the first threading hole 3-A, the groove 3-B, the shell 4, the annular groove 4-A, the annular step 4-B, the first round hole 4-C, the second round hole 4-D, the second threading hole 4-E, the PCB adapter plate 5, the socket 5-A, the O-shaped ring 6 and other terms are not excluded from the possibility of using other terms; these terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. An easily replaceable gas sensor probe assembly, characterized by: comprises a shell (4), a gasket (3), a clamping ring (2) and a probe (1); the snap ring (2) is assembled in front of the shell (4), the probe (1) is assembled in front of the gasket (3), the gasket (3) is assembled in the shell (4), and the rear end of the shell (4) is connected with the PCB adapter plate (5).

2. An easily replaceable gas sensor probe assembly according to claim 1, wherein: the clamping ring (2) is in interference fit with the shell (4).

3. An easily replaceable gas sensor probe assembly according to claim 2, wherein: a plurality of annular grooves (4-A) are formed in the outer wall of the shell (4), and O-shaped rings (6) are sleeved on the annular grooves (4-A).

4. A readily replaceable gas sensor probe assembly according to claim 3, wherein: the shell (4) and the clamping ring (2) are made of metal materials.

5. An easily replaceable gas sensor probe assembly according to claim 1, wherein: the probe is characterized in that a wire (1-A) is arranged on the probe (1), a first threading hole (3-A) is formed in the middle of the gasket (3), a second threading hole (4-E) is formed in the middle of the shell (4), and the wire (1-A) sequentially penetrates through the first threading hole (3-A) and the second threading hole (4-E) and is used for being connected with the PCB adapter plate (5).

6. An easily replaceable gas sensor probe assembly according to claim 5, wherein: the centers of the first threading hole (3-A) and the second threading hole (4-E) are relatively coincident.

7. An easily replaceable gas sensor probe assembly according to claim 1 or 5, wherein: a groove (3-B) is formed in the gasket (3), a second round hole (4-D) matched with the groove (3-B) is formed in the shell (4), and the groove (3-B) is coincident with the axis of the second round hole (4-D).

8. An easily replaceable gas sensor probe assembly according to claim 7, wherein: the gasket (3) is made of nitrile rubber or silica gel.

9. An easily replaceable gas sensor probe assembly according to claim 5, wherein: an annular step (4-B) is arranged at the rear of the shell (4), and the PCB adapter plate (5) is assembled in the annular step (4-B).

10. An easily replaceable gas sensor probe assembly according to claim 9, wherein: the PCB adapter plate (5) is of a semicircular structure, and the PCB adapter plate (5) is connected with a socket (5-A).