Metering pipe section of plastic shell ultrasonic water meter

Abstract

The utility model discloses a metering pipe section of a plastic shell ultrasonic water meter, which comprises an outer sleeve, an inner wall of which is provided with an annular mounting groove; and the embedded pipe is arranged in the annular mounting groove in an embedded mode, and the embedded pipe is made of metal. The utility model has the advantages that the plastic outer sleeve and the metal embedded pipe are combined, so that the strength of the pipe section can be ensured while the cost is reduced; the embedded pipe and the outer sleeve are connected in an embedded mode, so that the inner wall of the pipeline is smoother, and the resistance to water flow is smaller; the first supporting arm and the second supporting arm are arranged, and the first positioning groove and the second positioning groove are formed in the first supporting arm and the second supporting arm, so that the insert pipe section cannot shift in the outer sleeve in the axial direction in the injection molding process and the using process of the embedded pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of water meter pipe sections, in particular to an ultrasonic water meter pipe section with a metering module. Background Art

[0002] Ultrasonic water meters use ultrasonic technology to measure and calculate water flow by measuring the propagation time and speed of ultrasonic waves. They have high precision and accuracy. Compared with traditional mechanical water meters, ultrasonic water meters have smaller measurement errors and can provide more reliable and accurate data.

[0003] Ultrasonic water meters have become an important part of modern water meter technology and are widely used in the field of water resource management and conservation.

[0004] The measurement accuracy of ultrasonic water meters is largely affected by the dimensional stability of the ultrasonic water meter measuring pipe section, that is, the size of the ultrasonic water meter measuring pipe section will not change with the changes in the water temperature and ambient temperature of the ultrasonic water meter, the normal water pressure and instantaneous water hammer pressure, the torsion and bending force caused by the uneven installation pipe during the installation process, etc. In particular, the strength and rigidity of the ultrasonic plastic shell water meter are not as good as the metal ultrasonic water meter measuring pipe section. Therefore, how to ensure the dimensional stability and rigidity of the plastic shell ultrasonic water meter measuring pipe section without increasing the cost, the design and development of this type of structure has become a topic in this field and a hot spot for research and development of various water meter manufacturers in recent years. Utility Model Content

[0005] In order to solve the defects of the above-mentioned prior art, the utility model proposes a plastic shell ultrasonic water meter measuring pipe section, in which the part of the ultrasonic water meter measuring pipe section with metering characteristics requirements adopts a metal insert section with better dimensional stability and higher strength, so that the metal reflector and the metal pipe section with metering characteristics requirements are integrally formed, thereby obtaining a plastic shell ultrasonic water meter measuring pipe section with consistent metering accuracy and stability.

[0006] The technical solution of the utility model is implemented as follows: a plastic shell ultrasonic water meter measuring pipe section, comprising: an outer sleeve, the inner wall of which has an annular installation groove; an embedded pipe, the embedded pipe is embedded in the annular installation groove, and the embedded pipe is metal.

[0007] In one embodiment, a first reflective sheet is fixedly disposed at one end of the embedded tube, and a second reflective sheet is fixedly disposed at the other end of the embedded tube.

[0008] In one embodiment, the first reflective sheet is fixedly connected to the embedded tube via a first arm, and the second reflective sheet is fixed to the embedded tube via a second arm.

[0009] In one embodiment, a first positioning groove is formed on the first arm, and a second positioning groove is formed on the second arm.

[0010] In one embodiment, both the first arm and the second arm are embedded in the inner wall of the outer sleeve.

[0011] In one embodiment, there are two first arms, which are respectively disposed on two sides of the first reflector sheet, and there are two second arms, which are respectively disposed on two sides of the second reflector sheet.

[0012] In one embodiment, a first mounting hole and a second mounting hole are formed on a side wall of the outer sleeve, and the embedded tube is disposed between the first mounting hole and the second mounting hole.

[0013] In one embodiment, the outer sleeve is a plastic part.

[0014] In one embodiment, the embedded tube is copper or stainless steel.

[0015] The advantages of the utility model are:

[0016] (1) The combination of plastic outer sleeve and metal inner tube can reduce costs while ensuring the strength of the pipe section;

[0017] (2) The embedded pipe and the outer sleeve are connected by embedding, making the inner wall of the pipe smoother and reducing the resistance to water flow;

[0018] (3) By providing a first support arm and a second support arm, and opening a first positioning groove and a second positioning groove on the first support arm and the second support arm, the embedded tube section will not be axially offset in the outer sleeve during the injection molding process and during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a plastic shell ultrasonic water meter measuring pipe section provided by the utility model;

[0020] Figure 2 A left view of a plastic shell ultrasonic water meter measuring pipe section provided by the utility model;

[0021] Figure 3 This utility model is based on Figure 2 A cross-sectional view at AA;

[0022] Figure 4 This utility model is based on Figure 2 A cross-sectional view at BB;

[0023] Figure 5 This is a three-dimensional diagram of the embedded tube provided by the utility model.

[0024] In the figure, the outer sleeve 1, the annular mounting groove 11, the first mounting hole 12, the second mounting hole 13, the embedded tube 2, the first reflector 21, the second reflector 22, the first arm 23, the first positioning groove 24, the second arm 25, and the second positioning groove 26. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] like Figures 1 to 5 The plastic shell ultrasonic water meter measuring pipe section comprises: an outer sleeve 1, the inner wall of which has an annular mounting groove 11; an embedded pipe 2, the embedded pipe 2 is embedded in the annular mounting groove 11, and the embedded pipe 2 is made of metal.

[0027] It should be noted that the outer sleeve 1 is injection molded, and the embedded tube 2 is arranged in the annular mounting groove 11 on the inner side of the outer sleeve 1, so as to form an integral pipe section, which makes the pipe section stronger. When there are water temperature and ambient temperature, normal water pressure and instantaneous water hammer pressure, and the installation pipeline is not level, the pipeline has a higher ability to resist deformation, thereby ensuring the accuracy of measurement.

[0028] Preferably, combined Figure 4 As shown, a first reflective sheet 21 is fixedly disposed at one end of the embedded tube 2, and a second reflective sheet 22 is fixedly disposed at the other end.

[0029] Preferably, the first reflective sheet 21 is fixedly connected to the embedded tube 2 via a first support arm 23 , and the second reflective sheet 22 is fixed to the embedded tube 2 via a second support arm 25 .

[0030] Preferably, a first positioning groove 24 is formed on the first supporting arm 23 , and a second positioning groove 26 is formed on the second supporting arm 25 .

[0031] Preferably, Figure 4 As shown, the first support arm 23 and the second support arm 25 are both embedded in the inner wall of the outer sleeve 1 .

[0032] It is worth mentioning that, in the present embodiment, both the first support arm 23 and the second support arm 25 are partially embedded in the inner wall of the outer sleeve 1 .

[0033] Preferably, there are two first arms 23 , which are respectively disposed on two sides of the first reflective sheet 21 , and there are two second arms 25 , which are respectively disposed on two sides of the second reflective sheet 22 .

[0034] It can be understood that the first support arm 23 and the second support arm 25 are both embedded in the outer sleeve 1, and the positioning groove can prevent the insert tube section from axially shifting in the injection-molded tube section during the injection molding process and during use.

[0035] It is worth mentioning that two first positioning grooves 24 are defined on the first supporting arm 23 , and two second positioning grooves 26 are defined on the second supporting arm 25 .

[0036] Preferably, a first mounting hole 12 and a second mounting hole 13 are formed on a side wall of the outer sleeve 1 , and the embedded tube 2 is disposed between the first mounting hole 12 and the second mounting hole 13 .

[0037] It should be noted that the first mounting hole 12 and the second mounting hole 13 are used to connect the transducer.

[0038] Preferably, the outer sleeve 1 is a plastic part.

[0039] In this embodiment, the embedded tube 2 is made of copper. In another embodiment, the embedded tube 2 is made of stainless steel.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic shell ultrasonic water meter measuring pipe section, characterized in that: include: An outer sleeve, the inner wall of which is provided with an annular mounting groove; An embedded tube, the embedded tube is embedded in the annular mounting groove, and the embedded tube is made of metal. A first reflective sheet is fixedly disposed at one end of the embedded tube, and a second reflective sheet is fixedly disposed at the other end of the embedded tube.

2. The plastic shell ultrasonic water meter measuring pipe section according to claim 1 is characterized in that: The first reflective sheet is fixedly connected to the embedded tube via a first support arm, and the second reflective sheet is fixed to the embedded tube via a second support arm.

3. The plastic shell ultrasonic water meter measuring pipe section according to claim 2 is characterized in that: The first arm is provided with a first positioning groove, and the second arm is provided with a second positioning groove.

4. The plastic shell ultrasonic water meter measuring pipe section according to claim 3 is characterized in that: The first support arm and the second support arm are both embedded in the inner wall of the outer sleeve.

5. The plastic shell ultrasonic water meter measuring pipe section according to claim 2, 3 or 4, characterized in that: There are two first arms, which are respectively arranged on both sides of the first reflector sheet; there are two second arms, which are respectively arranged on both sides of the second reflector sheet.

6. The plastic shell ultrasonic water meter measuring pipe section according to claim 1, characterized in that: A first mounting hole and a second mounting hole are formed on the side wall of the outer sleeve, and the embedded tube is arranged between the first mounting hole and the second mounting hole.

7. The plastic shell ultrasonic water meter measuring pipe section according to claim 1, characterized in that: The outer sleeve is a plastic part.

8. The plastic shell ultrasonic water meter measuring pipe section according to claim 1, characterized in that: The embedded tube is made of copper or stainless steel.

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