CN219121624U

CN219121624U - Outdoor protector of instrument

Info

Publication number: CN219121624U
Application number: CN202223577555.1U
Authority: CN
Inventors: 吴程亮; 刘华; 陈彦彬
Original assignee: Beijing Easpring Material Technology Co Ltd
Current assignee: Beijing Easpring Material Technology Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-02
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses an outdoor protection device for an instrument, in particular to an outdoor protection device for a micro differential pressure instrument. The device comprises a base and a protective cover, wherein the base is provided with an opening for placing a detection end of an instrument; the bottom end of the protective cover is buckled and connected to the base, the top of the protective cover is closed, and the open hole is positioned in the coverage range of the protective cover; the protection cover comprises a plurality of layers of protection cover units which are mutually nested, the side surface of each protection cover unit is provided with a vent hole, and the vent holes on two adjacent layers of protection cover units are alternately arranged. The device can effectively prevent rainwater and wind from entering the pressure guiding pipe, and prevent the change of micro differential pressure values caused by environmental change.

Description

Outdoor protector of instrument

Technical Field

The utility model relates to an outdoor protection device for an instrument, in particular to an outdoor protection device for a micro differential pressure instrument.

Background

The micro differential pressure instrument is an electronic instrument for displaying pressure index, can measure indoor and outdoor pressure, and can obtain the difference value by calculation. The differential pressure gauge adopts a friction-free magnetic component, can rapidly measure micro-pressure-positive pressure, negative pressure (vacuum) or differential pressure of air or non-corrosive gas, has no abrasion, hysteresis and gap, and can not be filled with liquid, vaporized and frozen.

The outdoor measuring part of the micro differential pressure instrument is connected with the instrument and the outside air through a pressure guiding pipe. The pressure guiding pipe is exposed to the air outdoors and is easily affected by environmental changes. For natural weather such as wind, rain and the like, micro differential pressure changes can be caused, so that measurement inaccuracy is caused.

The outdoor protection of micro-differential pressure instrument adopts the common measure in the prior art at present that a single-layer protective cover is added on the instrument or the pressure guiding pipe for preventing rainwater from entering the pressure guiding pipe. But such a protection measure does not protect against the influence of windy weather on the differential pressure.

In view of this, the present utility model has been made to solve the above-mentioned problems.

Disclosure of Invention

In order to solve the technical problems, the utility model provides an outdoor protection device for an instrument, which can effectively prevent rainwater and wind from entering a pressure guiding pipe and prevent micro-differential pressure numerical value change caused by environmental change.

The utility model provides an outdoor protection device for an instrument, which comprises a base and a protection cover, wherein the base is provided with an opening for placing an instrument detection end; the bottom end of the protective cover is buckled and connected to the base, the top of the protective cover is closed, and the open hole is positioned in the coverage range of the protective cover; the protection cover comprises a plurality of layers of protection cover units which are mutually nested, the side surface of each protection cover unit is provided with a vent hole, and the vent holes on two adjacent layers of protection cover units are alternately arranged.

Further, with the open hole of the base as a reference, the orthographic projection of two vent holes on two adjacent layers of protective cover units on the base and the connecting line of the reference form an angle alpha, wherein the value range of the angle alpha is 0-180 degrees.

Preferably, the angle alpha has a value in the range of 90-180 degrees.

Preferably, the distance between two adjacent layers of the protective cover units is 1-10cm.

Preferably, the cross section of the protective cover unit is circular, and the orthographic projections of two vent holes of two adjacent layers of protective cover units on the base are oppositely arranged.

Preferably, the ventilation holes on the protective cover units of each layer are arranged at equal intervals in the orthographic projection of the base.

Preferably, the shape of the vent holes on each layer of the protective cover unit is the same. Optionally, the vent hole is a circular hole or an elongated hole.

Preferably, each layer of the protective cover unit is arranged at equal height, the top of the protective cover unit positioned at the outermost layer is provided with a closed top cover, and the protective cover unit is low in manufacturing cost and simple in structure.

Preferably, the bottom ends of the protective cover units of all layers are buckled and connected with the base.

According to the utility model, through designing the inner and outer multi-layer mutually nested protective cover units, the side surfaces of the adjacent protective cover units are respectively provided with the ventilation holes which are staggered, so that rainwater and wind are effectively prevented from entering the pressure guiding pipe, the micro differential pressure value change caused by environmental change is prevented, and the standard is uniform, so that the construction and maintenance are convenient.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic top view of the outdoor protector of the embodiment 1;

FIG. 2 is a schematic side view of the outdoor protector of the embodiment 1;

FIG. 3 is a cross-sectional view taken along section A-A of FIG. 2;

FIG. 4 is a cross-sectional view of section B-B of FIG. 2;

fig. 5 is a cross-sectional view of section C-C of fig. 2.

Reference numerals illustrate:

1-a base; 2-an inner layer shield unit; 3-an intermediate layer shield unit; 4-an outer protective cover unit; 5-fixing bolts; 6, perforating the pressure guiding pipe; 7-vent holes.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, "a plurality of" a number "means two or more, unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Example 1

An outdoor protection device for an instrument, as shown in fig. 1-3, comprises a base 1 and a protection cover, wherein the base 1 is fixed outdoors by fixing bolts 5. The base 1 is provided with an opening for placing an instrument detection end, in this embodiment, the opening is a pressure guiding pipe opening 6, and the instrument detection end is a pressure guiding pipe; the bottom end of the protective cover is connected to the base 1 in a buckling way, the top of the protective cover is closed, and the pressure guiding pipe opening 6 is positioned in the coverage range of the protective cover; the protection casing includes the protection casing unit of multilayer mutually nested, every layer the air vent 7 has all been seted up to the side of protection casing unit, and the air vent 7 on the adjacent two-layer protection casing unit is crisscross to be seted up. Therefore, after wind enters the protective cover units on the opposite outer layers, the wind can enter the protective cover units on the opposite inner sides only through a tortuous path, and the influence of the wind on the pressure guiding pipe is greatly reduced.

In this embodiment, the multi-layer protective cover unit is a three-layer protective cover unit, which is an inner protective cover unit 2, a middle protective cover unit 3 and an outer protective cover unit 4.

In a preferred embodiment, with the opening of the base 1 as a reference, the orthographic projection of two vent holes 7 on two adjacent protective cover units on the base 1 forms an angle alpha with the connecting line of the reference, wherein the value of the angle alpha ranges from 0 to 180 degrees.

In a more preferred embodiment, the angle α has a value in the range of 90-180 degrees. Within 180 degrees, the larger the angle is, the longer or more tortuous the wind passes through the path, and the better the use effect is.

The cross section of the protective cover unit is circular, and the inner protective cover unit 2, the middle protective cover unit 3 and the outer protective cover unit 4 are shown in fig. 1. The orthographic projections of the two vent holes 7 of the two adjacent layers of protective cover units on the base 1 are oppositely arranged. In a preferred embodiment, the ventilation holes 7 in the protective cover unit of each layer are arranged at equal intervals in the orthographic projection on the base 1. In this embodiment, as shown in fig. 3 to 5, the vent hole 7 on the inner protection cover unit 2 is disposed opposite to the orthographic projection of the vent hole 7 on the middle protection cover unit 3 on the base 1 by 180 degrees, and the orthographic projections of the vent hole 7 on the middle protection cover unit 3 and the vent hole 7 on the outer protection cover unit 4 on the base 1 are also disposed opposite to each other by 180 degrees.

In a preferred embodiment the shape of the vent holes 7 in each layer of the shield unit is the same. The vent 7 may be a circular hole or an elongated hole. In this embodiment, as shown in fig. 3-5, the cross section of the inner protective cover unit 2 is shown in fig. 5, the cross section of the middle protective cover unit 3 is shown in fig. 4, the cross section of the outer protective cover unit 4 is shown in fig. 3, the protective cover units of each layer are equally high, in this embodiment, the distance between two adjacent protective cover units is 1-10cm, and the shape of the vent holes 7 of each protective cover unit is the same, and each protective cover unit is a circular hole.

In this embodiment, as shown in fig. 2 and fig. 3-5, the inner layer protection cover unit 2, the middle layer protection cover unit 3 and the outer layer protection cover unit 4 are arranged at equal heights, and a sealing top cover (not shown in the drawings) is arranged at the top of the outer layer protection cover unit 4, and the sealing top cover can play a role in sealing the inner layer protection cover unit 2, the middle layer protection cover unit 3 and the outer layer protection cover unit 4, so that the manufacturing cost is low and the structure is simple.

In a preferred embodiment, the bottom ends of the inner protective cover unit 2, the middle protective cover unit 3 and the outer protective cover unit 4 are all buckled with the base 1, and in this application, reference is made to fig. 2, the bottom end is the left side of each layer of protective cover unit in fig. 2, and the top end is the right side of each layer of protective cover unit in fig. 2.

Note that the technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be regarded as the scope of the description. The foregoing examples represent only a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims

1. An outdoor protective device for an instrument, comprising:

the base is provided with an opening for placing the instrument detection end;

the bottom end of the protective cover is buckled and connected to the base, the top of the protective cover is closed, and the open hole is located in the coverage range of the protective cover;

the protective cover is characterized by comprising a plurality of layers of protective cover units which are mutually nested, vent holes are formed in the side face of each layer of protective cover unit, and the vent holes in two adjacent layers of protective cover units are formed in a staggered mode.

2. The outdoor protection device of claim 1, wherein, based on the opening of the base, the orthographic projection of two vent holes on two adjacent protective cover units on the base forms an angle α with the line of the base, wherein the angle α has a value ranging from 0 to 180 degrees.

3. The outdoor protection device of claim 2, wherein the angle α has a value in the range of 90-180 degrees.

4. A meter outdoor protection unit according to any of claims 1-3, wherein the spacing between adjacent layers of said protective cover units is 1-10cm.

5. A meter outdoor protection unit as set forth in any one of claims 1-3, wherein the cross section of the protective cover unit is circular, and the orthographic projections of two vent holes of two adjacent protective cover units on the base are disposed opposite to each other.

6. A meter outdoor protection as set forth in any one of claims 1-3, wherein the vent holes in each layer of the protective cover unit are equally spaced in front projection on the base.

7. A meter outdoor protection as set forth in any one of claims 1-3, wherein the vent holes in each of said protective cover units are the same shape.

8. The outdoor protection device of claim 7, wherein the vent is a circular hole or an elongated hole.

9. An outdoor protector according to any one of claims 1-3, wherein the protective cover units of each layer are arranged at equal heights, and a closed top cover is arranged on top of the protective cover unit located at the outermost layer.

10. The outdoor protective device of claim 1, wherein the bottom ends of the protective cover units of each layer are all fastened to the base.