CN220380562U

CN220380562U - Ultrasonic water meter filter screen and mounting structure thereof

Info

Publication number: CN220380562U
Application number: CN202321462281.3U
Authority: CN
Inventors: 沈畅; 陈志明; 沈爽
Original assignee: Chengdu Shengli Deke Technology Co ltd
Current assignee: Chengdu Shengli Deke Technology Co ltd
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2024-01-23
Anticipated expiration: 2033-06-08

Abstract

The utility model relates to the technical field of ultrasonic water meter components, in particular to an ultrasonic water meter filter screen, which comprises a first connecting ring, a second connecting ring, a connecting part, a first network segment and a second network segment, wherein the first connecting ring, the second connecting ring and the connecting part are coaxial; the outer contour of the first network segment and the outer contour of the second network segment are both of cone-shaped structures, and the outer diameter of the small end of the first network segment is larger than that of the large end of the second network segment. The utility model has the advantages that: the structure is firm, the fluid is steady, the resistance is little, can satisfy the grit and the weeds of water pipe and block, also can guarantee the stable accurate measurement of water pipe low discharge, whole product compact structure, intensity large deformation is little, equipment is simple swift.

Description

Ultrasonic water meter filter screen and mounting structure thereof

Technical Field

The utility model relates to the technical field of ultrasonic water meter components, in particular to an ultrasonic water meter filter screen and an installation structure thereof.

Background

The ultrasonic water meter is widely applied to water flow measurement and water flow speed measurement, and a user measures measurement problems such as water charging standards, flow rate control and the like by using the ultrasonic water meter, however, when the ultrasonic water meter is used for measurement, the ultrasonic water meter can be blocked by foreign matters due to poor quality of the measured water body, and the user needs to detach the whole ultrasonic water meter from the whole water flow pipe for cleaning, so that the operation is very troublesome and labor-consuming.

In order to solve the foregoing problems, a filter screen is generally installed in a tube section of an ultrasonic water meter. Chinese patent application No.: 201920991616.8 discloses an ultrasonic water meter for preventing blockage, which comprises a filter screen, wherein the filter screen is fixed with the filter screen by penetrating through a first groove through a screw, and the filter screen structure is in a plane structure. Chinese patent application No.: 202121326802.3 discloses a pipeline filtering structure for an ultrasonic water meter, which comprises two filter screens and is also in a plane structure. Tests prove that the structure has high resistance to fluid, and backflow fluctuation is easy to generate, so that inaccurate metering is caused. Besides the filter holes on the side wall, the cone-cylinder filter screen on the market still has a bottom surface with the filter holes, and when sundries are accumulated on the bottom surface, backflow fluctuation can be generated, so that the metering accuracy is reduced.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the ultrasonic water meter filter screen and the installation structure thereof, which have the advantages of stable structure, stable fluid and small resistance, can meet the requirements of blocking sand and weed of a water pipe, can also ensure stable and accurate metering of small flow of the water pipe, and has the advantages of compact structure, large strength, small deformation and simple and quick assembly.

The aim of the utility model is achieved by the following technical scheme:

the ultrasonic water meter filter screen comprises a first connecting ring, a second connecting ring, a connecting part, a first network section and a second network section, wherein the first connecting ring, the second connecting ring and the connecting part are coaxial, one end of the first network section is connected to the first connecting ring, the other end of the first network section is connected to the second connecting ring, one end of the second network section is connected to the second connecting ring, and the other end of the second network section is connected to the connecting part; the outer contour of the first network segment and the outer contour of the second network segment are both of cone-shaped structures, and the outer diameter of the small end of the first network segment is larger than that of the large end of the second network segment.

Further, a plurality of protruding portions are uniformly arranged on the outer wall of the first connecting ring at intervals.

Further, the protruding part is of a semi-cone structure and gradually reduces along the flow direction of water flow.

Further, the protruding portion and the first connecting ring are of an integrally formed structure.

Further, the number of the protruding parts is 6-10.

The utility model provides an ultrasonic wave water gauge filter screen's mounting structure, includes the pipeline section with ultrasonic wave water gauge filter screen, set up on the tip inner wall of pipeline section with the recess of bellying looks adaptation, ultrasonic wave water gauge filter screen packs into when the pipeline section, bellying and recess joint cooperation.

Further, the inner diameter of the pipe section is equal to the inner diameter of the first connecting ring.

The utility model has the following advantages:

1. the plane through hole of the traditional filter screen is designed into a three-dimensional hole type, and the diameter of the plane through hole is designed into two sections with the same size, so that the water pressure and the flow rate are ensured to enter the main pipe section twice, the fluctuation of water flow is reduced, the whole product is similar to a cone, the water flow is not pressed and impacted with the front surface of the product, the resistance of the water flow rate is reduced, the rebound is avoided, and therefore, the accurate reading can be realized on small metering, and the precision of the product is effectively improved.

2. Even if some meshes are blocked by sundries, the reactive force of the filter screen to the fluid is different from the axial line (water flow) direction of the filter screen due to the two-section conical structure, and backflow fluctuation is not easy to generate.

3. The plurality of protruding parts are arranged on the outer wall of the first connecting ring and are clamped with the grooves on the inner wall of the pipe section, so that the ultrasonic meter is convenient and quick to install, is not easy to loose, fall off and misplace, and cannot influence the ultrasonic meter due to the integral rotation of the filter screen caused by water flow pressure.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic side view of the present utility model;

FIG. 3 is a schematic cross-sectional view of a pipe section of the present utility model;

FIG. 4 is a schematic view of the assembled structure of a pipe section and a screen of the present utility model;

in the figure: 1-first connecting ring, 1 a-protruding part, 2-second connecting ring, 3-connecting part, 4-first net section, 5-second net section, 6-pipe section, 6 a-recess.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following.

As shown in fig. 1 and fig. 2, an ultrasonic water meter filter screen includes a first connecting ring 1, a second connecting ring 2, a connecting portion 3, a first network segment 4 and a second network segment 5, in this embodiment, the first connecting ring 1, the second connecting ring 2, the connecting portion 3, the first network segment 4 and the second network segment 5 are integrally formed into an integral structure, the structure is stable and reliable, the first connecting ring 1, the second connecting ring 2 and the connecting portion 3 are coaxial, the inner diameter of the first connecting ring 1 is larger than the inner diameter of the second connecting ring 2, the size of the connecting portion 3 is as small as possible, the front reaction force of the connecting portion 3 to water flow is reduced, one end of the first network segment 4 is connected to the first connecting ring 1, the other end is connected to the second connecting ring 2, and one end of the second network segment 4 is connected to the connecting portion 3; the outer contour of the first network segment 4 and the outer contour of the second network segment 5 are both in cone structures, and the outer diameter of the small end of the first network segment 4 is larger than the outer diameter of the large end of the second network segment 5. The mesh densities of the first and second segments 4, 5 are adjusted according to actual needs.

Further, a plurality of protruding portions 1a are uniformly arranged on the outer wall of the first connecting ring 1 at intervals, preferably, the protruding portions 1a are of a semi-cone structure, gradually decrease along the flow direction of water flow, and when the impact force of the water flow acts on the filter screen, the more tightly the clamping is, the loosening dislocation is prevented.

Further, the protruding portion 1a and the first connecting ring 1 are of an integrated structure, so that the structural strength is improved, the service life of the filter screen is prolonged, and the protruding portion 1a can be prevented from falling off to cause clamping and loosening.

Further, the number of the protrusions 1a is 6 to 10, preferably 8 in this embodiment, so that the loosening and dislocation of the filter screen can be prevented more effectively, and the fluctuation of water flow caused by unstable installation of the filter screen can be reduced.

As shown in fig. 3 and 4, an installation structure of an ultrasonic water meter filter screen comprises a pipe section 6 and the ultrasonic water meter filter screen, a groove 6a matched with a protruding part 1a is formed in the inner wall of the end part of the pipe section 6, and the protruding part 1a is in clamping fit with the groove 6a when the ultrasonic water meter filter screen is installed in the pipe section 6. When the water flow acts on the filter screen, the filter screen is pushed to move towards the downstream end of the water flow, so that the fit between the filter screen and the pipe section 6 is tighter and tighter, and the filter screen cannot rotate due to the impact of the water flow.

In this embodiment, the inner diameter of the tube section 6 is equal to the inner diameter of the first coupling ring 1.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An ultrasonic water meter filter screen, which is characterized in that: the device comprises a first connecting ring (1), a second connecting ring (2), a connecting part (3), a first network section (4) and a second network section (5), wherein the first connecting ring (1), the second connecting ring (2) and the connecting part (3) are coaxial, one end of the first network section (4) is connected to the first connecting ring (1), the other end is connected to the second connecting ring (2), one end of the second network section (4) is connected to the second connecting ring (2), and the other end is connected to the connecting part (3); the outer contour of the first network section (4) and the outer contour of the second network section (5) are both of cone-shaped structures, and the outer diameter of the small end of the first network section (4) is larger than that of the large end of the second network section (5).

2. An ultrasonic water meter screen as defined in claim 1, wherein: a plurality of protruding parts (1 a) are uniformly arranged on the outer wall of the first connecting ring (1) at intervals.

3. An ultrasonic water meter screen as defined in claim 2, wherein: the protruding part (1 a) is of a semi-cone structure and gradually reduces along the flow direction of water flow.

4. An ultrasonic water meter screen according to claim 3, wherein: the protruding part (1 a) and the first connecting ring (1) are of an integrated structure.

5. An ultrasonic water meter screen as defined in claim 2, 3 or 4, wherein: the number of the protruding parts (1 a) is 6-10.

6. An ultrasonic wave water gauge filter screen's mounting structure, its characterized in that: the ultrasonic water meter filter screen comprises a pipe section (6) and any one of claims 2-5, wherein a groove (6 a) matched with the protruding part (1 a) is formed in the inner wall of the end part of the pipe section (6), and the protruding part (1 a) is in clamping fit with the groove (6 a) when the ultrasonic water meter filter screen is installed in the pipe section (6).

7. The ultrasonic water meter filter screen mounting structure according to claim 6, wherein: the inner diameter of the pipe section (6) is equal to the inner diameter of the first connecting ring (1).