CN112730749A

CN112730749A - Probe safety cover

Info

Publication number: CN112730749A
Application number: CN202011573953.9A
Authority: CN
Inventors: 赵唐铭; 江焕平; 李辉; 钟云波
Original assignee: Shenzhen City Empaer Technology Co ltd
Current assignee: Shenzhen City Empaer Technology Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-04-30

Abstract

The invention relates to the technical field of gas detectors, and in particular designs a probe protective cover. The probe protective cover includes a primary air inlet, a secondary air inlet and an external protective fence. The primary air inlet and the secondary air inlet The air port adopts a stacked porous dislocation design. The technical scheme of the present invention has the advantages of simple structure, good windproof and rainproof effect, and easy installation.

Description

Probe safety cover

Technical Field

The invention relates to the technical field of gas detectors, in particular to a probe protection cover for a gas detector.

Background

The fixed gas detector is generally installed in outdoor open air environment, but the sensor element of the probe cannot be air-permeable and waterproof, that is, the probe does not have a rainproof function, and a protective cover is required to be additionally arranged for rainproof. At present, most probe safety covers on the market all adopt simple rail formula design, and are relatively crude, only can block side rainwater etc. but in practical application, to some gas heavier than air, need install gas detection appearance in the position nearer from ground, consequently inevitable can lead to the probe to intake because of the water droplet that the ground splashes. Meanwhile, the probe needs to collect gas in the environment for analysis processing (referred to as sampling in the industry), and in the sampling process, if the wind speed is high, the gas in the probe can be taken away under the influence of airflow to cause detection errors. To above-mentioned problem, this scheme has solved radial and axial waterproof, gas permeability, prevent wind scheduling problem of probe safety cover under the accurate condition of assurance gas detector probe sensor element detection.

The design of rail formula side trompil is adopted to the probe safety cover, and the safety cover adopts threaded connection with the probe, has built the rail for the probe side in other words to along the side trompil, specifically as shown in figure 1, this probe safety cover only can play the waterproof effect of side direction, and can't block the pollutant and pollute the probe, and is relatively weak to the protectiveness of probe, can't accomplish basically and prevent wind.

Disclosure of Invention

The invention aims to provide a probe protection cover, aiming at solving the problem that a fixed gas detector cannot be used for discharging water and preventing wind outdoors.

The invention is realized by the following steps: the utility model provides a probe safety cover, probe safety cover includes one-level air inlet, second grade air inlet and outside protection rail, one-level air inlet and second grade air inlet adopt the porous dislocation design of range upon range of formula.

Preferably, the one-level air inlet adopts the design of protruding porous dislocation, has four hole sites, and four hole sites are inside to correspond respectively and are equipped with four stands, and the stand keeps parallel arrangement and is equipped with 2MM distance with the hole site, and the one-level air inlet is protruding to be slightly less than outside protection rail.

Preferably, the secondary air inlet adopts a long-distance cylindrical air inlet design, and the secondary air inlet is communicated with the primary air inlet; one side of the secondary air inlet close to the probe and one side of the secondary air inlet far away from the probe are both longer than the primary air inlet.

Preferably, the outer protective fence is in a multi-opening dislocation design, and the positions of fence holes are dislocated with the openings of the first-level air inlet.

Preferably, two side openings are arranged on one side of the secondary air inlet close to the probe.

Preferably, the probe protection cover is provided with a thread for fixedly connecting the probe.

By adopting the technical scheme provided by the invention, the defect that the conventional windproof and rainproof cover cannot have waterproof, breathable and sampling performances is overcome.

Drawings

FIG. 1 is a schematic diagram of a prior art probe cover according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an overall structure of a probe protection cover according to an embodiment of the present invention;

FIG. 3 is another block diagram of a probe cover according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a probe protection cover according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to fig. 1 and an embodiment. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 2, fig. 3 and fig. 4, the air inlet of the probe protection cover provided by the present invention adopts a stacked porous staggered design, and is provided with a primary air inlet 5, a secondary air inlet 1 and an external protection fence 7. One-level air inlet 5 adopts the porous dislocation design of protrusion, and 1 arch of one-level air inlet is slightly less than outside protection rail 7, and is equipped with four hole sites 4, and the inside of four hole sites 4 corresponds respectively and is equipped with four stands 3, and stand 3 keeps parallel arrangement and is equipped with 2MM distance with hole site 4, and such structure can be guaranteed to block the side direction and the axial water droplet and the air current that probably get into the probe in the protective cover gas permeability, has good gas permeability concurrently, waterproof nature and prevent wind the nature.

The secondary air inlet 8 adopts a long-distance cylindrical air inlet design, and the secondary air inlet 8 and the primary air inlet 5 are integrated and communicated with each other; one side of the second-level air inlet 8, which is far away from the probe, is longer than the first-level air inlet 5, and the design purpose is to achieve the purpose of layered sampling through the design of height dislocation with the first-level air inlet 5, so that the sampling accuracy is ensured. The secondary air inlet 8 is also longer than the primary air inlet 5 on the side close to the probe, and the design aims to enable the detected gas to be close to the probe, shorten the time for the sensor element in the probe to contact the detected gas and accelerate the reaction speed. Two-stage air inlet 8 is close to probe one side and is equipped with both sides trompil 1, and cavity in the safety cover can be filled up rapidly through the mode of two-way diffusion to the gas that so structure can make, guarantees the sampling precision.

The outer protection fence 7 adopts a multi-opening dislocation design, and the fence hole positions 6 are dislocated with the primary air inlet openings 4, so that the wind-proof and side-rain-proof effects of the protection fence are enhanced while the air permeability of the protection fence is improved.

In order to facilitate installation, the probe protection cover disclosed by the invention is provided with threads for installing the probe, and of course, other structures can be adopted to be connected with the probe, which is not described herein again.

The technical scheme disclosed by the invention adopts an integrated internal thread structure design, and the effect of simplifying installation is achieved. The design of the air inlet achieves the effects of enhancing the sampling performance, preventing wind, and preventing wind in the axial direction and the lateral direction. The design of the protective fence achieves the effects of enhancing air permeability and preventing wind laterally. In conclusion, the technical scheme disclosed by the invention combines various designs, achieves the performance improvement in various aspects such as waterproofness, air permeability, windproof performance and sampling performance, and overcomes the defect that the conventional windproof and rainproof cover cannot have the waterproof, air permeability and sampling performance.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a probe safety cover, its characterized in that, probe safety cover includes one-level air inlet, second grade air inlet and outside protection rail, one-level air inlet and second grade air inlet adopt the porous dislocation design of range upon range of formula.

2. The probe protection cover of claim 1, wherein the primary air inlet is formed by a convex multi-hole staggered design and has four hole sites, four pillars are correspondingly arranged in the four hole sites respectively, the pillars are parallel to the hole sites and have a distance of 2MM, and the protrusion of the primary air inlet is slightly lower than the outer protection fence.

3. The probe protection cover of claim 1, wherein the secondary air inlet is designed to be a long-distance cylindrical air inlet, and the secondary air inlet is communicated with the primary air inlet; one side of the secondary air inlet close to the probe and one side of the secondary air inlet far away from the probe are both longer than the primary air inlet.

4. The probe guard of claim 2, wherein the outer guard rail is a multi-aperture offset design, the rail aperture position being offset from the primary air inlet aperture.

5. The probe protection cover of claim 3, wherein the secondary air inlet is provided with two side openings on a side close to the probe.

6. The probe protection cover according to claim 1 or 2 or 3 or 4 or 5, wherein a thread for fixedly connecting a probe is provided on the probe protection cover.