CN214333915U

CN214333915U - High-precision volumetric water meter

Info

Publication number: CN214333915U
Application number: CN202021031052.2U
Authority: CN
Inventors: 韩树屏; 石磊; 王春林
Original assignee: Lianyungang Lianli Foster Watch Industry Co ltd
Current assignee: Lianyungang Lianli Forster Watch Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-10-01
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses a high accuracy positive displacement water gauge, including the water gauge casing, the upside spiro union of water gauge casing has the calibrated scale, the inside downside joint of water gauge casing has the filter screen, the inside joint of filter screen has the sleeve, telescopic internal rotation installs the impeller, the impeller includes the pivot of sleeve internal rotation installation, the upper end of pivot runs through sleeve and the inside gear fixed assembly of calibrated scale, the fixed surface of pivot installs the cylinder, the inserting groove has evenly been seted up to the circumference surface of cylinder, it has the impeller blade to peg graft in the inside of inserting groove, the inboard even fixed mounting of inserting groove has the one end of spring, the other end and the inboard fixed assembly of impeller blade of spring. The device can ensure the real-time contact between the outer ends of the impeller blades and the sleeve, avoid fluid from passing through gaps, and improve the precision of fluid delivery.

Description

High-precision volumetric water meter

Technical Field

The utility model relates to a positive displacement water gauge technical field specifically is a high accuracy positive displacement water gauge.

Background

A positive displacement water meter is a water meter installed in a conduit and consisting of chambers of known volume that are successively filled and drained of fluid and a mechanism driven by the fluid. The commonly used displacement water meter at present can be divided into a shell, a sleeve and an inner core from outside to inside, after an impeller of the inner core is used for a long time, a gap can exist between the outer end and the sleeve to influence the fluid conveying precision, and in order to solve the problems, a high-precision displacement water meter is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high accuracy positive displacement water gauge to solve the problem that proposes among 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 high accuracy positive displacement water gauge, includes the water gauge casing, the upside spiro union of water gauge casing has the calibrated scale, the inside downside joint of water gauge casing has the filter screen, the inside joint of filter screen has the sleeve, telescopic internal rotation installs the impeller, the impeller includes the pivot of sleeve internal rotation installation, the upper end of pivot runs through the fixed assembly of sleeve and the inside gear of calibrated scale, the fixed surface of pivot installs the cylinder, the inserting groove has evenly been seted up to the circumference surface of cylinder, the inside grafting of inserting groove has the impeller blade, the inboard even fixed mounting of inserting groove has the one end of spring, the other end and the inboard fixed assembly of impeller blade of spring.

Preferably, the lower side of the outer surface of the sleeve is uniformly provided with water inlet holes, the upper side of the outer surface of the sleeve is uniformly provided with water outlet holes, and the water inlet holes and the water outlet holes are formed along the tangential direction of the sleeve in an inward inclined manner and are opposite in direction.

Preferably, the inner surface of the sleeve is fixedly provided with a wear-resistant layer.

Preferably, the outer end of the impeller blade is provided with an arc surface matched with the inner surface of the wear-resistant layer, and the arc surface is tightly attached to the wear-resistant layer.

Preferably, the water inlet and the water outlet of the water meter shell are provided with connecting threads.

Compared with the prior art, the beneficial effects of the utility model are that: the high-precision positive displacement water meter can ensure the real-time contact between the outer end of the impeller blade and the sleeve, avoid the fluid from passing through the gap and improve the precision of fluid delivery.

Drawings

Fig. 1 is a schematic cross-sectional view of the structure of the present invention.

Fig. 2 is a schematic plan view of the impeller of the present invention.

In the figure: the water meter comprises a water meter shell 1, a filter screen 2, a sleeve 3, an impeller 4, a cylinder 41, an insertion groove 42, a rotating shaft 43, an impeller blade 44, a spring 45, a wear-resistant layer 5, an arc surface 6, a dial 7, a water inlet hole 8, a water outlet hole 9 and a connecting thread 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: the utility model provides a high accuracy positive displacement water gauge, including water meter case body 1, water meter case body 1's upside spiro union has calibrated scale 7, water meter case body 1's inside downside joint has filter screen 2, filter screen 2's inside joint has sleeve 3, sleeve 3's internal rotation installs impeller 4, impeller 4 includes the pivot 43 of sleeve 3 internal rotation installation, the upper end of pivot 43 runs through sleeve 3 and the inside gear fixed assembly of calibrated scale 7, the fixed surface of pivot 43 installs cylinder 41, inserting groove 42 has evenly been seted up to cylinder 41's circumference surface, inserting groove 42's inside grafting has impeller piece 44, the inboard even fixed mounting of inserting groove 42 has the one end of spring 45, the other end of spring 45 and the inboard fixed assembly of impeller piece 44.

When water flows into the water meter shell 1, the water is filtered by the filter screen 2 and then the impeller 4 is rotated by the sleeve 3, meanwhile, the upper end of the rotating shaft 43 is measured and displayed by the dial 7 through gear transmission, the inserting groove 42 on the column 41 can allow the impeller blades 44 inserted inside to slightly move inside and outside, and the spring 45 can push the impeller blades 44 outwards, so that the outer ends of the impeller blades are tightly attached to the wear-resistant layer 5 during rotation, the sealing performance is improved, and the fluid conveying precision is improved.

The inlet opening 8 has evenly been seted up to sleeve 3's surface downside, and apopore 9 has evenly been seted up to sleeve 3's surface upside, and inlet opening 8, apopore 9 set up along sleeve 3's tangential direction leanin, and opposite direction.

The water inlet hole 8 pushes the impeller 4 to rotate after water enters, the sleeve 3 is filled with the water, and water between the impeller blades 44 opposite to the water outlet of the water meter shell 1 is discharged through the water outlet hole 9.

The inner surface of the sleeve 3 is fixedly provided with a wear-resistant layer 5. The wear resistant layer 5 prevents friction when the impeller blades 44 rotate.

The outer end of the impeller blade 44 is provided with an arc surface 6 matched with the inner surface of the wear-resistant layer 5, and the arc surface 6 is tightly attached to the wear-resistant layer 5. The sealing performance can be improved.

The water inlet and the water outlet of the water meter shell 1 are provided with connecting threads 10. The assembly of the connection with the water pipe is facilitated by the connecting thread 10.

The working principle is as follows: the connecting thread 10 is convenient for connecting and assembling with a water pipe; when water flows through the water meter shell 1, the water is filtered by the filter screen 2 and then the impeller 4 is rotated by the sleeve 3, and meanwhile, the upper end of the rotating shaft 43 is measured and displayed by the dial 7 through gear transmission; the inserting groove 42 on the column 41 can allow the impeller blades 44 inserted inside to slightly move inside and outside, and the spring 45 can push the impeller blades 44 outwards, so that the outer ends of the impeller blades are tightly attached to the wear-resistant layer 5 during rotation, the sealing performance is improved, and the fluid conveying precision is improved; the wear resistant layer 5 prevents friction when the impeller blades 44 rotate.

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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A high accuracy positive displacement water gauge which characterized in that: the water meter comprises a water meter shell (1), wherein a dial (7) is screwed on the upper side of the water meter shell (1), a filter screen (2) is clamped on the lower side in the water meter shell (1), a sleeve (3) is clamped in the filter screen (2), and an impeller (4) is rotatably arranged in the sleeve (3);

impeller (4) include pivot (43) of sleeve (3) internal rotation installation, the gear fixed mounting inside sleeve (3) and calibrated scale (7) is run through to the upper end of pivot (43), the outer fixed surface of pivot (43) installs cylinder (41), inserting groove (42) have evenly been seted up to the circumference surface of cylinder (41), the inside grafting of inserting groove (42) has impeller blade (44), the inboard even fixed mounting of inserting groove (42) has the one end of spring (45), the other end and the inboard fixed mounting of impeller blade (44) of spring (45).

2. A high accuracy positive displacement water meter as set forth in claim 1, wherein: inlet opening (8) have evenly been seted up to the surface downside of sleeve (3), apopore (9) have evenly been seted up to the surface upside of sleeve (3), inlet opening (8), apopore (9) are seted up along the tangential direction leanin of sleeve (3), and opposite direction.

3. A high accuracy positive displacement water meter as set forth in claim 1, wherein: and the inner surface of the sleeve (3) is fixedly provided with a wear-resistant layer (5).

4. A high accuracy positive displacement water meter as set forth in claim 1, wherein: the outer end of the impeller blade (44) is provided with an arc surface (6) matched with the inner surface of the wear-resistant layer (5), and the arc surface (6) is tightly attached to the wear-resistant layer (5).

5. A high accuracy positive displacement water meter as set forth in claim 1, wherein: and the outer sides of the water inlet and the water outlet of the water meter shell (1) are provided with connecting threads (10).