CN218765431U

CN218765431U - Measuring tube and measuring structure for water meter

Info

Publication number: CN218765431U
Application number: CN202222705745.0U
Authority: CN
Inventors: 胡晨; 杨模俊; 林文灿; 杨铭涛; 严渊达; 李泽亮
Original assignee: Ningbo Water Meter Group Co Ltd
Current assignee: Ningbo Water Meter Group Co Ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-03-28
Anticipated expiration: 2032-10-12

Abstract

The utility model discloses a measuring tube for a water meter, which comprises a connecting tube body and a measuring tube body; the connecting pipe body comprises two connecting pipe sections and a connecting piece which is arranged between the two connecting pipe sections and is connected with the two connecting pipe sections; each connecting pipe section is provided with a mounting hole for mounting an external transducer; two ends of the two connecting pipe sections back to each other form a water inlet end and a water outlet end respectively; the side surface of the connecting piece is provided with a clamping hole; the measuring pipe body is arranged between the two connecting pipe sections and is respectively communicated with the two connecting pipe sections in a sealing way; the measuring pipe body is provided with a clamping piece protruding laterally; the clamping piece is tightly matched with the clamping hole. The utility model discloses a survey buret that water gauge was used, its accuracy that can ensure the water gauge and detect. The utility model also discloses a measurement structure that the water gauge was used.

Description

Measuring tube and measuring structure for water meter

Technical Field

The utility model relates to a water gauge field especially relates to a survey buret and measure structure that water gauge was used.

Background

At present, a detection structure of an intelligent small-caliber ultrasonic water meter comprises a measuring tube, a reflector and a transducer, wherein the reflector and the transducer are arranged in the measuring tube, and the flow velocity of fluid in the measuring tube is usually calculated in a mode that the transducer emits and absorbs ultrasonic waves reflected by the reflector; current survey buret adopts split type setting more, specifically, surveys buret including arranging first section, measurement section and second section in proper order, and the both ends of measuring the section are cartridge respectively and are realized connecting to the tip of first section and second section in, and at this moment, the measurement section takes place axial displacement and not hard up easily under the rivers impact, will cause testing result to have an error.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model aims to provide a survey buret and measure structure that water gauge was used, its homoenergetic ensures the accuracy that the water gauge detected.

The purpose of the utility model is realized by adopting the following technical scheme:

a measuring tube for a water meter comprises a connecting tube body and a measuring tube body; wherein:

the connecting pipe body comprises two connecting pipe sections and a connecting piece which is arranged between the two connecting pipe sections and is connected with the two connecting pipe sections; each connecting pipe section is provided with a mounting hole for mounting an external transducer; two ends of the two connecting pipe sections back to each other form a water inlet end and a water outlet end respectively; a clamping hole is formed in the side surface of the connecting piece;

the measuring pipe body is arranged between the two connecting pipe sections and is respectively communicated with the two connecting pipe sections in a sealing way; the measuring pipe body is provided with a clamping piece protruding in the lateral direction; the clamping piece is in clamping fit with the clamping hole.

Furthermore, the number of the clamping pieces is at least two, and the at least two clamping pieces are sequentially arranged at intervals along the axial direction of the measuring pipe body; each clamping piece is correspondingly provided with the clamping hole.

Furthermore, a through hole for the screw rod part to pass through is formed in the shell of the water meter; the clamping piece is provided with a mounting groove which penetrates through the end face of the clamping piece, which is back to the measuring pipe body, and an insert nut is arranged in the mounting groove; the insert nut is capable of aligning with the bore.

Further, the retainer and the insert nut are integrally formed.

Further, the measuring pipe body comprises a first half pipe and a second half pipe, wherein the radial cross-sectional shapes of the first half pipe and the second half pipe are semicircular and are connected with each other; the outer diameter of the second half pipe is larger than that of the first half pipe; the clamping piece is arranged on the first half pipe; the connecting piece is a connecting plate with a semicircular radial section; the connecting plate covers and establishes outside the first half pipe, just the external diameter of connecting plate equals the external diameter of second half pipe.

Further, still including being used for the cover to establish the annular groove of external seal circle, the annular groove set up the connecting plate with on the second half pipe.

Further, the middle part of the inner cavity of the measuring tube body is narrowed.

a measuring structure for a water meter comprises the measuring tube; and a reflector corresponding to the mounting hole is integrally formed in each connecting pipe section.

Further, concave holes are respectively formed at the end parts of the reflectors opposite to each other; each reflector is correspondingly provided with a plug; and the plug corresponds to the forming concave hole.

Furthermore, the outer surface of the plug corresponding to the water inlet end is matched with the outer surface of the reflector to form a flow guide surface; the diversion surface is in a circular arc shape protruding towards the water inlet end.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a connection body of surveying buret that water gauge was used realizes connecting through chucking spare and chucking hole clamping tight fit between the body with measuring, and chucking spare side direction protrusion measures the body, so, and the chucking spare can prevent to measure body axial displacement, and the connection of connecting the body and measuring the body is more firm, and chucking spare and chucking hole tight fit, can eliminate the installation clearance, further avoids measuring the body not hard up to ensure the detection accuracy of the water gauge of surveying buret that uses this water gauge.

The utility model discloses a measurement structure that the water gauge was used is owing to survey buret including foretell water gauge is used, and can ensure the detection accuracy of the water gauge of surveying buret of using this water gauge to use.

Drawings

Fig. 1 is a schematic structural view of a measurement structure for a water meter according to the present invention;

fig. 2 is an exploded view of a measurement structure for a water meter according to the present invention;

fig. 3 is a cross-sectional view of the measurement structure for a water meter according to the present invention.

In the figure: 10. connecting the pipe body; 11. connecting the pipe sections; 111. a water inlet end; 112. a water outlet end; 113. mounting holes; 12. a connecting member; 20. measuring a pipe body; 21. a first half pipe; 22. a second half pipe; 23. measuring the inner cavity of the tube body; 31. a clamping hole; 32. a retainer; 40. an insert nut; 50. an annular groove; 60. a reflector; 70. a plug; 80. and (5) forming concave holes.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1 to 3, the present invention discloses a measuring tube for a water meter, which includes a connecting tube 10 and a measuring tube 20; the connecting pipe body 10 comprises two connecting pipe sections 11 and a connecting piece 12 which is arranged between the two connecting pipe sections 11 and is connected with the two connecting pipe sections 11; each connecting pipe section 11 is provided with a mounting hole 113 for mounting an external transducer; the two ends of the two connecting pipe sections 11, which are back to each other, are respectively formed into a water inlet end 111 and a water outlet end 112; the side surface of the connecting piece 12 is provided with a clamping hole 31; the measuring tube body 20 is arranged between the two connecting tube sections 11 and is respectively communicated with the two connecting tube sections 11 in a sealing way; the measuring tube body 20 is provided with a laterally projecting clamping member 32; the clamping member 32 is tightly fitted with the clamping hole 31, and specifically, the clamping member 32 is tightly fitted with the clamping hole 31.

In above-mentioned structure, through the convex chucking spare 32 of side direction and chucking mouth interference fit, so, can prevent to measure body 20 axial displacement, the connection of connecting pipe body 10 and measuring body 20 is more firm, and chucking spare 32 and 31 tight fits of chucking hole, can eliminate the installation clearance, further avoids measuring body 20 not hard up to ensure the detection accuracy of the water gauge of the survey buret that uses this water gauge.

It is worth mentioning that, above-mentioned through pressing chucking spare 32 to chucking hole 31 in, realize the connection of connecting body 10 and measuring body 20 promptly, it is convenient to install, and required part is few, simple structure, can avoid too much part to cause the hindrance to the assembling process when assembling it to outside water gauge watchcase.

In order to improve the connection strength of the present embodiment, the number of the clamping members 32 of the present embodiment is at least two, and at least two clamping members 32 are sequentially arranged at intervals along the axial direction of the measuring tube body 20; each clamping piece 32 is correspondingly provided with a clamping hole 31.

The meter shell of the water meter of the embodiment is provided with a through hole for the screw rod part to pass through; at least one clamping piece 32 is provided with a mounting groove which penetrates through the end surface of the clamping piece facing away from the measuring pipe body 20, and an insert nut 40 is arranged in the mounting groove; insert nut 40 can be aligned with the through-hole; like this, when installing the survey buret that this water gauge was used to the water gauge watchcase in, aim at insert nut 40 and perforation, adopt outside screw to pass behind the perforation and insert nut 40 spiro union, can realize that location between them is fixed, simple easy operation.

The clamping piece 32 and the insert nut 40 are integrally formed, so that the stability of the clamping piece 32 relative to the insert nut 40 is improved, and the detection accuracy is ensured.

The measuring tube body 20 of the present embodiment includes a first half tube 21 and a second half tube 22 each having a semicircular radial sectional shape and connected to each other; the outer diameter of the second half-pipe 22 is greater than the outer diameter of the first half-pipe 21; the clamping member 32 is arranged on the first half-pipe 21; the connecting piece 12 is a connecting plate with a semicircular radial section; the connecting plate covers and establishes outside first half pipe 21, and the external diameter of connecting plate equals the external diameter of second half pipe 22, and at this moment, the connecting plate levels with second half pipe 22 lateral surface, does benefit to follow-up assembly in the water gauge watchcase.

The embodiment further comprises an annular groove 50 for sleeving the external sealing ring, wherein the annular groove 50 is formed in the connecting plate and the second half pipe 22; when assembled with the meter housing, the annular groove 50 is fitted with an annular seal which reduces the likelihood of water leakage between the meter tube and the external meter housing.

The inner chamber 23 middle part of the measuring tube body of this embodiment narrows, and at this moment, the portion of narrowing plays the rectification effect to the rivers that flow through here, improves and measures the accuracy.

The embodiment also discloses a measuring structure for the water meter, which comprises the measuring pipe; a reflector 60 corresponding to the mounting hole 113 is arranged in each connecting pipe section 11; the measuring structure for the water meter has the same technical effect as the measuring tube; the principle of use of the above-described measuring arrangement for a water meter is known from the prior art and will not be described in detail here.

The connection pipe section 11 and the reflector 60 of the present embodiment are integrally formed, so that the reflector 60 is prevented from shaking, and the stability cavity of the reflector 60 ensures stable reflection angle.

Specifically, the two connecting pipe segments 11, the two reflectors 60, and the connecting member 12 are integrally formed, and the installation step is omitted.

In the embodiment, the ends of the reflectors 60 opposite to each other are respectively injection-molded with the molding concave holes 80, so that the mold is inevitably provided with fixing posts extending into the cavities of the molding reflectors 60 during molding, the fixing posts mold the molding concave holes 80, and at the moment, the fixing posts can conveniently support and fix the reflectors 60 during injection molding; further, the corresponding plug 70 blocks the corresponding forming recess 80 to prevent water from entering the forming recess 80.

In this embodiment, the outer surface of the plug 70 corresponding to the water inlet end 111 and the outer surface of the reflector 60 are matched to form a flow guide surface; it will be appreciated that the water inlet end 111, the plug 70 and the reflector 60 are all disposed on the same connector segment 11; the diversion surface is in the shape of a circular arc protruding towards the water inlet end 111, and at the moment, the resistance to water flow can be reduced.

It should be noted that the two reflectors 60 can be designed to have the same shape to reduce the mold tooling requirements for injection molding the measurement structure for the water meter.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention.

Claims

1. A measuring tube for a water meter, comprising a connecting tube body (10) and a measuring tube body (20); wherein:

the connecting pipe body (10) comprises two connecting pipe sections (11) and a connecting piece (12) which is arranged between the two connecting pipe sections (11) and is connected with the two connecting pipe sections (11); each connecting pipe section (11) is provided with a mounting hole (113) for mounting an external transducer; two ends of the two connecting pipe sections (11) back to each other are respectively formed into a water inlet end (111) and a water outlet end (112); a clamping hole (31) is formed in the side surface of the connecting piece (12);

the measuring pipe body (20) is arranged between the two connecting pipe sections (11) and is respectively communicated with the two connecting pipe sections (11) in a sealing way; the measuring tube body (20) is provided with a clamping piece (32) protruding laterally; the clamping piece (32) is in clamping fit with the clamping hole (31).

2. A measuring tube for a water meter as claimed in claim 1, characterized in that said clamping members (32) are provided in at least two numbers, at least two of said clamping members (32) being arranged in succession at intervals in the axial direction of said measuring tube body (20); each clamping piece (32) is correspondingly provided with the clamping hole (31).

3. The measuring tube for a water meter as recited in claim 1, wherein the meter housing has a through hole for the screw shaft to pass through; the clamping piece (32) is provided with a mounting groove penetrating through the end face of the clamping piece facing away from the measuring pipe body (20), and an insert nut (40) is arranged in the mounting groove; the insert nut (40) is alignable with the perforation.

4. The measuring tube for a water meter as set forth in claim 3, characterized in that said retainer (32) and said insert nut (40) are integrally formed.

5. A measuring tube for a water meter as claimed in claim 1, characterized in that said measuring tube body (20) comprises a first half-tube (21) and a second half-tube (22) which are semicircular in radial cross-section and are connected to each other; the external diameter of the second half-pipe (22) is greater than that of the first half-pipe (21); said clamping member (32) being arranged on said first half-tube (21); the connecting piece (12) is a connecting plate with a semicircular radial section; the connecting plate covers and is established outside first half pipe (21), and the external diameter of connecting plate equals the external diameter of second half pipe (22).

6. The measuring tube for water meters as set forth in claim 5, characterized in that it further comprises an annular groove (50) for housing an external sealing ring, said annular groove (50) opening onto said web and said second half-tube (22).

7. A measuring tube for a water meter as claimed in claim 1, characterized in that the measuring tube body has a narrowing in the middle of its inner chamber (23).

8. A measuring arrangement for a water meter, comprising a measuring tube as claimed in any one of claims 1 to 7; the inside of each connecting pipe section (11) is integrally provided with a reflector (60) corresponding to the mounting hole (113) on the connecting pipe section.

9. A measuring arrangement for a water meter as claimed in claim 8, characterized in that the ends of the reflectors (60) facing away from each other are each formed with a recess (80); each reflector (60) is correspondingly provided with a plug (70); and the forming concave hole (80) is blocked and corresponds to the plug column (70).

10. A measuring structure for a water meter according to claim 9, wherein an outer surface of said plug (70) corresponding to said water inlet end (111) and an outer surface of said reflector (60) cooperate to form a flow guide surface; the flow guide surface is in a circular arc shape protruding towards the water inlet end (111).