CN216593616U

CN216593616U - Water meter shell

Info

Publication number: CN216593616U
Application number: CN202121769281.9U
Authority: CN
Inventors: 安英子
Original assignee: Suzhou Shanxin International Trade Co ltd
Current assignee: Suzhou Shanxin International Trade Co ltd
Priority date: 2021-08-01
Filing date: 2021-08-01
Publication date: 2022-05-24
Anticipated expiration: 2031-08-01

Abstract

The utility model discloses a water meter shell in the technical field of fluid, which comprises a water meter cavity, and a water inlet pipe and a water outlet pipe which are communicated with two sides of the water meter cavity, wherein the water outlet pipe is provided with a non-return structure, the non-return structure comprises a non-return cavity, a sealing ball is arranged in the non-return cavity, the non-return cavity is connected with a blocking cover which blocks the sealing ball from leaving the non-return cavity, a water outlet channel is arranged in the water outlet pipe, the water outlet channel comprises a first channel communicated with the non-return cavity and a second channel, one end of the second channel is communicated with the non-return cavity, the other end of the second channel is communicated with the water meter cavity, and the sealing ball blocks a communication port between the second channel and the non-return cavity. The water meter shell has the advantages of stable non-return effect, difficult fluctuation, simple structure, relatively simple installation, difficult clamping of up-and-down floating and difficult failure.

Description

Water meter shell

Technical Field

The utility model belongs to the technical field of fluids, and particularly relates to a water meter shell.

Background

The structure of the non-return water meter in the prior art comprises a shell and a non-return device arranged on a water flow channel in the shell, wherein the non-return device adopts a lifting structure and comprises a valve core guide block, a valve core, a valve sleeve and a valve cover; when water flow positively flows into the water meter along the pipeline, the water flow jacks the valve core and then flows out of the connecting port; when the reverse flow occurs, the water flow can automatically press down the valve core to form a closed state. In the water meter, air bubbles exist at the top valve cover of the check structure, so that the problem of inaccurate metering of the water meter is caused.

Patent document No. CN212807205U discloses a non-return device and a water meter case, which are used to solve the technical problem that the non-return water meter case in the prior art is prone to generate vacuum and causes inaccurate measurement of the water meter, but the non-return device in the patent has a complex structure, high cost and is cumbersome to install.

SUMMERY OF THE UTILITY MODEL

Compared with the prior art, the water meter shell has the advantages that the non-return effect is stable, fluctuation is not easy to occur, and a guide structure is not needed, so that the structure is simple, and the installation is relatively simple.

The water meter shell comprises a water meter cavity and a water inlet pipe and a water outlet pipe which are communicated with two sides of the water meter cavity, wherein the water outlet pipe is provided with a non-return structure, the non-return structure comprises a non-return cavity, the non-return cavity is obliquely arranged, a sealing ball is arranged in the non-return cavity, the non-return cavity is connected with a stopper, the sealing ball leaves a stopper cover of the non-return cavity, a water outlet flow channel is arranged in the water outlet pipe and comprises a first flow channel and a second flow channel, one end of the first flow channel is a water outlet end, the other end of the first flow channel is communicated with the non-return cavity, one end of the second flow channel is communicated with the non-return cavity, the other end of the second flow channel is communicated with the water meter cavity, and the sealing ball blocks a communication port between the second flow channel and the non-return cavity.

Further, the second flow passage is disposed obliquely.

Further, the extending direction of the check cavity is perpendicular to the extending direction of the second flow passage.

Furthermore, the sealing ball is made of plastic materials.

Further, the blocking cover is detachably connected with the check cavity.

Further, the baffle cover is provided with a protruding portion, the non-return cavity is provided with an accommodating portion for accommodating the protruding portion, and the protruding portion is detachably connected in the accommodating portion.

Further, the bulge is clamped with the accommodating part and sealed with the check cavity.

Further, the bulge is cylindric and its surface is equipped with the external screw thread, the portion of holding is the round hole, the inner wall of portion of holding is equipped with the internal thread, the bulge with the portion of holding threaded connection.

Further, a sealing glue layer is arranged between the protruding portion and the containing portion.

Further, the first communication port has a larger sectional area than the second communication port.

The beneficial effect of this scheme does: compared with the prior art, this scheme has changed the check structure of spheroidal plastic material with the check valve that the structure is complicated, because spheroidal bottom is cambered surface mechanism, and itself is central symmetry moreover, so the atress is towards the center, and the effect of non return is more stable, is difficult to undulant, does not need the guide structure moreover, so the structure is simple and easy, and the installation is also simple relatively, and the fluctuation is difficult to be blocked moreover, so be difficult to the inefficacy.

Drawings

Fig. 1 is a schematic perspective view of a water meter case according to the present invention.

Fig. 2 is a schematic perspective view of another angle of the water meter case according to the present invention.

Fig. 3 is a front view of a water meter housing of the present invention.

Fig. 4 is a bottom view of the water meter case of the present invention.

Fig. 5 is a cross-sectional view a-a of fig. 3.

Fig. 6 is a sectional view of B-B in fig. 4.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the water meter comprises a water inlet pipe joint 1, a water inlet pipe 2, a water meter cavity 3, a water meter mounting interface 4, a blocking cover 5, a water outlet pipe 6, a water outlet pipe joint 7, a first flow channel 8, a second flow channel 9, a first communicating port 10, a non-return cavity 11, a sealing ball 12 and a second communicating port 13.

The examples are substantially as shown in figures 1 to 6 of the accompanying drawings: the water meter shell body comprises a water meter cavity 3, a water outlet pipe 6 and a water inlet pipe 2 which are integrally cast and formed by stainless steel, wherein the water inlet pipe 2 is communicated with the left water inlet end of the water meter cavity 3, the water inlet pipe 2 is far away from one end of the water meter cavity 3 and is also fixedly connected with a water inlet pipe joint 1 for connecting a tap water pipe and fixedly installing the tap water pipe, the water outlet pipe 6 is communicated with the right water outlet end of the water meter cavity 3, the water outlet pipe 6 is far away from one end of the water meter cavity 3 and is fixedly connected with a water outlet pipe joint 7 for connecting the tap water pipe and fixedly installing the tap water pipe, and tap water passes through the water inlet pipe 2 and flows into the water meter cavity 3 and then passes through the water outlet pipe 6. The top of the water meter cavity 3 is provided with a water meter mounting interface 4, the water meter is mounted in the water meter cavity 3 through the water meter mounting interface 4 and works when water flows through the water meter mounting interface 4 to finish the metering of tap water.

Be equipped with non return structure on outlet pipe 6, non return structure includes non return cavity 11, the sealed ball 12 that is equipped with in the non return cavity 11, the density of this sealed ball 12 is greater than the density of water, and preferred sealed ball 12 is the plastic material. The water outlet pipe 6 is internally provided with a water outlet flow passage, the water outlet flow passage comprises a first flow passage 8 and a second flow passage 9, one end of the first flow passage 8 is a water outlet end, the other end of the first flow passage 8 is communicated with a non-return cavity 11, one end of the second flow passage 9 is communicated with the non-return cavity 11, the other end of the second flow passage 9 is communicated with the water meter cavity 3, tap water flows into the non-return cavity 11 from the first communication port 10 through the second flow passage 9, at the moment, the sealing ball 12 is flushed by the water pressure to move towards the blocking cover 5, so that water outlet work is realized, and then the tap water enters the water outlet pipe 6 through a second communication port 13 between the first flow passage 8 and the non-return cavity 11 to flow out of the water meter shell. The diameter of sealing ball 12 is greater than the diameter of first intercommunication mouth 10, and when the running water refluence, sealing ball 12 blocks under hydraulic effect second flow channel 9 with first intercommunication mouth 10 between the non return cavity 11 to realize the non return effect.

Preferably, the second flow channel 9 is obliquely arranged and used for connecting the water meter cavity with the check cavity 11, specifically, referring to fig. 6, the second flow channel 9 obliquely extends from left to right, so that the obliquely arranged second flow channel can make full use of kinetic potential energy conversion of height difference, thereby ensuring that the forward flowing water pressure is enough to push back the resultant force of the back pressure formed on the sealing ball by the dead weight and the reverse flowing water flow, and enabling the check device to normally exert its own function.

The sectional area of preferred first intercommunication mouth 10 is greater than the sectional area of second intercommunication mouth 13, and the setting can produce effectual rivers acceleration effect to the fluid that positive through out non return cavity 11, has formed the intensification effect of water pressure, has ensured the trafficability characteristic of rivers.

With further reference to the oblique arrangement of the check cavity 11 in fig. 6, preferably, the extending direction of the check cavity 11 is perpendicular to the extending direction of the second flow channel, so that on one hand, the force required by the water flow to push the sealing ball open can be reduced, and on the other hand, the sealing ball 12 can smoothly slide downwards.

Be equipped with on the non return cavity 11 and be used for putting into the opening of sealing ball 12, the opening is connected with and blocks sealing ball 12 leaves the fender lid 5 of non return cavity 11, be equipped with the bellying on the fender lid 5, opening part on the non return cavity 11 is equipped with and holds the portion of holding of bellying, the bellying detachable connect in the portion of holding, just the bellying joint income sealed behind the portion of holding the opening, in this embodiment, the bellying is cylindric and its surface is equipped with the external screw thread, the portion of holding is the round hole, the inner wall of portion of holding is equipped with the internal thread, the bellying with the portion of holding threaded connection, can improve the reliability of keeping off lid 5 connection like this, also can improve sealed effect. In addition, in order to further improve the effect of sealing the opening by the flap 5, a sealant layer may be provided between the protruding portion and the receiving portion.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present invention should be determined by the content of the claims, and the description of the embodiments and the like in the specification should be used to interpret the content of the claims.

Claims

1. The water meter shell comprises a water meter cavity and a water inlet pipe and a water outlet pipe which are communicated with two sides of the water meter cavity, wherein the water outlet pipe is provided with a non-return structure, the non-return structure comprises a non-return cavity, the non-return cavity is obliquely arranged, and the water meter shell is characterized in that: the water meter is characterized in that a sealing ball is arranged in the check cavity, the check cavity is connected with a blocking cover for blocking the sealing ball to leave the check cavity, a water outlet channel is arranged in the water outlet pipe and comprises a first channel and a second channel, one end of the first channel is a water outlet end, the other end of the first channel is communicated with the check cavity, one end of the second channel is communicated with the check cavity, the other end of the second channel is communicated with the water meter cavity, and the sealing ball blocks the second channel and a communication port between the check cavities.

2. The water meter housing of claim 1, wherein: the second flow passage is obliquely arranged.

3. The water meter housing of claim 2, wherein: the extending direction of the check cavity is perpendicular to the extending direction of the second flow passage.

4. The water meter housing of claim 3, wherein: the sealing ball is made of plastic materials.

5. The water meter housing of claim 4, wherein: the blocking cover is detachably connected with the check cavity.

6. The water meter housing of claim 5, wherein: the baffle cover is provided with a protruding part, the non-return cavity is provided with a containing part for containing the protruding part, and the protruding part is detachably connected in the containing part.

7. The water meter housing of claim 6, wherein: the bulge card inserts the portion of holding just seals the non return cavity.

8. The water meter housing of claim 6, wherein: the bulge is cylindric and its surface is equipped with the external screw thread, the portion of holding is the round hole, the inner wall of portion of holding is equipped with the internal thread, the bulge with the portion of holding threaded connection.

9. The water meter housing according to claim 7 or 8, wherein: and a sealing glue layer is arranged between the bulge part and the accommodating part.

10. The water meter housing of claim 1, wherein: the communicating port between the second flow channel and the non-return cavity is a first communicating port, the communicating port between the first flow channel and the non-return cavity is a second communicating port, and the sectional area of the first communicating port is larger than that of the second communicating port.