CN112414521A

CN112414521A - Water meter pressure loss testing device

Info

Publication number: CN112414521A
Application number: CN202011242623.1A
Authority: CN
Inventors: 唐君羿; 刘国庆; 贵焱锋; 伍鹏
Original assignee: Hunan Changde Water Meter Manufacture Co Ltd
Current assignee: Hunan Changde Water Meter Manufacture Co Ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-02-26
Anticipated expiration: 2040-11-09
Also published as: CN112414521B

Abstract

The invention provides a water meter pressure loss testing device, which relates to the field of water meters and comprises a water inlet pipeline, a water outlet pipeline and a connecting part, wherein the central axis of the water inlet pipeline and the central axis of the water outlet pipeline are positioned on the same straight line, the opposite end parts of the water inlet pipeline and the water outlet pipeline are both provided with the connecting part, and the other end of the water inlet pipeline is connected with the water outlet end of a water pump; one end of the test tube is communicated with the water inlet pipeline, and the other end of the test tube is communicated with the water outlet pipeline; the testing part is arranged in the middle of the testing tube and divides the testing tube into a first testing tube and a second testing tube; after the water meter to be measured is connected between the water inlet pipe and the water outlet pipe through the connecting portion, the water pump is started, water of the water inlet pipe enters the water meter to be measured and the first measuring pipe, water flowing out of a water outlet of the water meter enters the water outlet pipe and the second measuring pipe, and the water pressure difference between the first measuring pipe and the second measuring pipe is detected through the testing portion, so that the anti-blocking capacity of the water meter can be quantitatively measured, and a consumer can conveniently choose to purchase the water meter.

Description

Water meter pressure loss testing device

Technical Field

The invention relates to the field of water meters, in particular to a water meter pressure loss testing device.

Background

The water meter is an instrument for measuring water flow, mostly is the accumulated flow measurement of water, and generally is divided into a positive displacement water meter and a speed water meter, wherein the water meter is generally arranged on a main pipe for water inlet of a house, and an anti-blocking structure is generally designed in the water meter to prevent the water meter from being blocked by impurities in water after long-time operation.

The applicant found that: after the water meter is produced, the anti-blocking capacity is difficult to measure quantitatively.

Disclosure of Invention

In view of this, one or more embodiments of the present disclosure provide a pressure loss testing apparatus for a water meter, so as to solve the technical problem in the prior art that it is difficult to measure the strength of the anti-blocking capability after the water meter is produced.

In view of the above, one or more embodiments of the present disclosure provide a water meter pressure loss testing device, including:

the water meter comprises a water inlet pipeline, a water outlet pipeline and a connecting part, wherein the central axis of the water inlet pipeline and the central axis of the water outlet pipeline are positioned on the same straight line, the opposite end parts of the water inlet pipeline and the water outlet pipeline are provided with the connecting part, the connecting part is used for being connected with a water inlet or a water outlet of the water meter, and the other end of the water inlet pipeline is connected with the water outlet end of the water pump;

one end of the test tube is communicated with the water inlet pipeline, and the other end of the test tube is communicated with the water outlet pipeline;

the test part is arranged in the middle of the test tube and divides the test tube into a first test tube and a second test tube;

after the water meter to be tested is connected between the water inlet pipeline and the water outlet pipeline through the connecting part, the water pump is started, water in the water inlet pipeline enters the water meter to be tested and the first testing pipe, water flowing out of a water outlet of the water meter enters the water outlet pipeline and the second testing pipe, and the water pressure difference between the first testing pipe and the second testing pipe is detected through the testing part.

Further, the connection portion includes:

the end plates are fixed at the opposite ends of the water inlet pipeline and the water outlet pipeline, the end plates are provided with through holes penetrating through the two side surfaces of the end plates, and the central axes of the through holes are superposed with the central axis of the water inlet pipeline;

the bell mouth comprises a first end face and a second end face, the outer diameter of the first end face is larger than that of the second end face, the second end face is fixed on the opposite side surface of the end plate, and the central axis of the bell mouth is superposed with that of the through hole;

when the water meter to be detected is detected, the threaded cylinder on one side of the water inlet of the water meter to be detected is directly opposite to the bell mouth on the side of the water inlet pipeline, then the threaded cylinder on one side of the water outlet of the water meter to be detected is directly opposite to the bell mouth on the side of the water outlet pipeline, and then the two threaded cylinders are rotated to enable the outer edge of the end part of the threaded cylinder to abut against the inner side wall of the threaded cylinder.

Furthermore, the outer edge of the end part of the thread cylinder is provided with a rubber ring used for abutting against the inner side wall of the thread cylinder.

Furthermore, the screw thread cylinder comprises an extension rod, one end of which is fixed on the outer side surface of the screw thread cylinder.

Further, the test portion includes movable block and stopper, the test pipe is transparent pipeline, and has one end to be in the horizontal pipeline of horizontality in the test pipe, the movable block is located the horizontal pipeline to with horizontal pipeline sliding connection, the both sides of movable block all are equipped with the stopper, the stopper is fixed in the inside wall of horizontal pipeline.

Further, the test section includes:

a cylindrical block with an inner cavity inside and a rotating shaft positioned in the inner cavity, wherein the central axis of the rotating shaft is superposed with the central axis of the inner cavity, two ends of the rotating shaft are rotatably connected with the end surface of the inner cavity,

the top side surfaces of the partition plates are fixed on the side surfaces of the inner cavity, the front side surfaces and the rear side surfaces of the partition plates are respectively fixed on two end surfaces of the inner cavity, the bottom side surfaces of the partition plates are in contact with the side surfaces of the rotating shaft, and the inner cavity is divided into two independent detection areas through the two partition plates;

the bottom side is fixed in pivot outside surface fixed plate, the front and back side of fixed plate respectively with two end face contacts of inner chamber, the side surface contact of the top side of fixed plate and the side surface of inner chamber, the fixed plate is divided into independent district and the district of aerifing of filling water with the detection zone, be equipped with gas in the district of aerifing, one of them fills water district and first survey pipe intercommunication, another fills water district and second survey pipe intercommunication.

Furthermore, the device comprises a pointer of which the bottom end is fixed on the outer side surface of the rotating shaft, wherein the pointer is close to one end surface of the cylindrical block.

The invention has the beneficial effects that: when the pressure loss testing device for the water meter is used for testing, firstly, the water meter to be tested is connected between the water inlet pipeline and the water outlet pipeline through the connecting part, then the water pump is started, water in the water inlet pipeline enters the water meter to be tested and the first testing pipe, water flowing out of the water outlet of the water meter enters the water outlet pipeline and the second testing pipe, the water pressure of the water inlet pipeline is equal to the water pressure in the first testing pipe, and the water pressure of the water outlet pipeline is equal to the water pressure of the second testing pipe, so that after the water pump continuously and stably supplies water for a period of time, the water pressure difference between the first testing pipe and the second testing pipe can be detected through the testing part, the anti-blocking capacity of the water meter can be quantitatively measured, and consumers can conveniently choose and.

Drawings

In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.

FIG. 1 is a first schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a second schematic structural diagram of an embodiment of the present invention;

FIG. 3 is an enlarged view of a cylindrical block in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a connection portion in the embodiment of the present invention.

Wherein, 2, a water inlet pipeline; 3. a water outlet pipeline; 4. an end plate; 5. a bell mouth; 6. a threaded barrel; 7. an extension rod; 8. a test tube; 9. a movable block; 10. a limiting block; 11. a cylindrical block; 12. an inner cavity; 13. a rotating shaft; 14. a fixing plate; 15. a partition plate; 16. a pointer.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure is further described in detail below with reference to specific embodiments.

It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In view of the above object, a first aspect of the present invention provides an embodiment of a water meter pressure loss testing apparatus, as shown in fig. 1 and 2, including:

the water meter comprises a water inlet pipeline 2, a water outlet pipeline 3 and a connecting part, wherein the central axis of the water inlet pipeline 2 and the central axis of the water outlet pipeline 3 are positioned on the same straight line, the opposite end parts of the water inlet pipeline 2 and the water outlet pipeline 3 are provided with the connecting part, the connecting part is used for being connected with a water inlet or a water outlet of a water meter, and the other end of the water inlet pipeline 2 is connected with the water outlet end of a water pump;

one end of the test tube 8 is communicated with the water inlet pipeline 2, and the other end of the test tube 8 is communicated with the water outlet pipeline 3;

set up in the test portion at test tube 8 middle part, test portion will test tube 8 and divide into first survey pipe and second survey pipe.

In this embodiment, when detecting, at first the water gauge that will await measuring passes through connecting portion and connects between inlet channel 2 and outlet conduit 3, then the water pump starts, inlet channel 2's water gets into during waiting to measure water gauge and the first survey pipe, water that flows from the water gauge delivery port gets into in outlet channel 3 and the second surveys the pipe, the water pressure of inlet channel 2 equals with the water pressure in the first survey pipe this moment, outlet channel 3's water pressure equals with the water pressure of the second survey pipe, therefore the water pump lasts after stablely supplying water for a period, the accessible test portion detects out the water pressure difference of first survey pipe and second survey pipe, make the stifled ability of preventing of water gauge can carry out quantitative measurement, make things convenient for the consumer to choose to purchase. Here, to speed up the progress of the test, substances that easily cause clogging of the water meter may be added to the water under test.

As an embodiment, as shown in fig. 1, 2 and 4, the connection part includes:

the end plate 4 is fixed at the opposite end parts of the water inlet pipeline 2 and the water outlet pipeline 3, the end plate 4 is provided with through holes penetrating through the two side surfaces of the end plate 4, and the central axis of each through hole is superposed with the central axis of the water inlet pipeline 2;

the bell mouth 5 comprises a first end face and a second end face, the outer diameter of the first end face is larger than that of the second end face, the second end face is fixed on the side surface opposite to the end plate 4, and the central axis of the bell mouth 5 coincides with that of the through hole.

And the threaded cylinder 6 is in threaded connection with the outer side surface of the water inlet or the outer side surface of the water outlet of the water meter to be measured.

In this embodiment, when detecting the water meter to be measured, the threaded cylinder 6 on one side of the water inlet of the water meter to be measured is directly opposite to the bell mouth 5 on the side of the water inlet pipe 2, then the threaded cylinder 6 on one side of the water outlet of the water meter to be measured is directly opposite to the bell mouth 5 on the side of the water outlet pipe 3, and then the two threaded cylinders 6 are rotated to enable the outer edge of the end part of the threaded cylinder 6 to be abutted against the inner side wall of the threaded cylinder 6, so that the water meter can be installed between the water inlet pipe 2 and the water outlet pipe 3, and different threaded cylinders 6 can be selected to be matched.

In addition, as shown in fig. 4, the outer edge of the end of the threaded cylinder 6 is provided with a rubber ring for abutting against the inner side wall of the threaded cylinder 6, and the sealing effect between the end of the threaded cylinder 6 and the inner side wall of the bell mouth 5 is better through sealant.

In order to facilitate people to rotate the thread cylinder 6, as shown in fig. 4, an extension rod 7 with one end fixed on the outer side surface of the thread cylinder 6 can be arranged, and the thread cylinder 6 can be conveniently rotated through the extension rod 7.

As an implementation mode, as shown in fig. 1, the testing part includes a movable block 9 and a limiting block 10, the testing pipe 8 is a transparent pipe, and there is a horizontal pipe with one end in a horizontal state in the testing pipe 8, the movable block 9 is located in the horizontal pipe and is connected with the horizontal pipe in a sliding manner, the two sides of the movable block 9 are both provided with the limiting block 10, and the limiting block 10 is fixed on the inner side wall of the horizontal pipe. Here, can set up the scale of pressure differential at the lateral surface of horizontal pipeline, when first survey when surveying and producing pressure differential between the pipe with the second, can promote movable block 9 and slide in horizontal pipeline, after a period of time, movable block 9 is stable in horizontal pipeline, can read out pressure differential at this moment, during stopper 10's effect, prevent that the water inlet and the delivery port of too big or water gauge of pressure differential from connecing conversely, cause movable block 9 to slide the place of testing 8 bendings of pipe, make

movable block

9 and 8 inner wall clashes of testing pipe.

As an embodiment, as shown in fig. 2, the test section includes:

a cylindrical block 11 with an inner cavity 12 inside and a rotating shaft 13 positioned in the inner cavity 12, wherein the central axis of the rotating shaft 13 is superposed with the central axis of the inner cavity 12, two ends of the rotating shaft 13 are rotatably connected with the end surface of the inner cavity 12,

the top side surface of the partition plate 15 is fixed on the side surface of the inner cavity 12, the front side surface and the rear side surface of the partition plate 15 are respectively fixed on two end surfaces of the inner cavity 12, the bottom side surface of the partition plate 15 is in contact with the side surface of the rotating shaft 13, and the inner cavity 12 is divided into two independent detection areas through the two partition plates 15;

the bottom side is fixed in pivot 13 outside surface mounting plate 14, the front and back side of mounting plate 14 contacts with two terminal surfaces of inner chamber 12 respectively, and the top side of mounting plate 14 contacts with the side surface of inner chamber 12, mounting plate 14 is divided into independent water filling district and inflation zone with the detection zone, be equipped with gas in the inflation zone, one of them water filling district and first survey pipe intercommunication, another water filling district and second survey pipe intercommunication.

In this embodiment, during detection, after water enters the water filling region, the rotating shaft 13 is driven to rotate under the action of the pressure difference between the two water filling regions, after the pressure difference is equal to the air pressure of the air filling region, the rotating shaft 13 is kept stable, and after detection, the rotating shaft 13 is restored to the original position under the action of the air pressure in the air filling region.

As an embodiment, as shown in fig. 3, the anti-blocking device comprises a pointer 16 fixed at the bottom end to the outer side surface of the rotating shaft 13, the pointer 16 is close to one end surface of the cylindrical block 11, wherein the pointer 16 is at a position when not tested, and after the test, the strength of the anti-blocking capability is judged according to the position of the pointer 16.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the spirit of the present disclosure, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present description as described above, which are not provided in detail for the sake of brevity.

It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.

Claims

1. The utility model provides a water gauge pressure loss testing arrangement which characterized in that includes:

2. A water meter pressure loss testing device as set forth in claim 1, wherein said connecting portion includes:

3. A water meter pressure loss testing device as claimed in claim 2, wherein a rubber ring is provided at an outer edge of an end portion of the threaded cylinder for abutting against an inner side wall of the threaded cylinder.

4. The pressure drop testing device of the water meter as claimed in claim 2, comprising an extension rod having one end fixed to the outer side surface of the threaded cylinder.

5. The pressure loss testing device of a water meter as claimed in claim 1, wherein the testing portion comprises a movable block and a limiting block, the testing tube is a transparent tube, and a horizontal tube having a horizontal end, the movable block is located in the horizontal tube and slidably connected to the horizontal tube, the limiting block is disposed on both sides of the movable block, and the limiting block is fixed on the inner side wall of the horizontal tube.

6. The pressure drop testing device of the water meter as claimed in claim 1, wherein the testing part comprises:

7. A water meter pressure loss testing device as set forth in claim 6, including a pointer secured at its lower end to the outer surface of the shaft, said pointer being adjacent one end surface of the cylindrical block.