Ultrasonic water meter with ultra-low pressure loss

Abstract

The utility model relates to water gauge technical field, specifically disclose a kind of ultrasonic water gauge of superlow pressure loss, including water gauge main part and the electric control part and detection part of being arranged in water gauge main body, the water gauge main body includes upper box and the lower pipe body of being arranged in the lower end of upper box, the electric control part is arranged in upper box, the lower pipe body is passed by fluid;The detection part includes flow guide pipe, reflector and transducer, two the transducer is arranged in upper box, three reflector is arranged in flow guide pipe, the ultrasonic wave path formed by transducer and reflector is W shape, the flow guide pipe is detachably arranged in lower pipe body and with lower pipe body intercommunication.The utility model can reduce fluid resistance, thereby reduce pressure loss, ensure the efficient propagation and reception of ultrasonic signal, while enhancing anti-interference.

Description

Technical Field

[0001] This utility model relates to the field of water meter technology, specifically to an ultrasonic water meter with ultra-low pressure loss. Background Technology

[0002] Traditional mechanical water meters use impeller metering, which suffers from excessive pressure loss. Existing ultrasonic water meters reduce obstructions in the pipe section using ultrasonic technology; however, conventional designs often employ a U-shaped reflection principle, with a 45-degree reflective insert at the center of the pipe section. For example, an ultrasonic water meter disclosed in patent number CN117213576A (an earlier application by the applicant) has been found to still have excessive pressure loss during use. Furthermore, the internal flow guide section, i.e., the detection position, is integrally formed with the pipe body, making it difficult to clean, repair, or replace the flow guide section and its reflective insert, thus presenting shortcomings. Utility Model Content

[0003] The purpose of this invention is to provide an ultrasonic water meter with ultra-low pressure loss to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is an ultrasonic water meter with ultra-low pressure loss, including a water meter body and an electronic control unit and a detection unit disposed in the water meter body. The water meter body includes an upper housing and a lower tube disposed at the lower end of the upper housing. The electronic control unit is disposed in the upper housing, and the lower tube is for fluid to pass through. The detection unit includes a guide tube, a reflector, and a transducer. Two transducers are disposed in the upper housing, and three reflectors are disposed in the guide tube. The ultrasonic path formed by the transducers and reflectors is W-shaped. The guide tube is detachably disposed in the lower housing and communicates with the lower housing.

[0005] Furthermore, the guide pipe includes a base pipe and pipe seats disposed at opposite ends of the base pipe. The pipe seats extend axially outward from the bottom wall of the base pipe to form a bottom surface. An outer curved surface and an inner inclined surface are provided at the upper end of the bottom surface. The outer curved surface faces the water inlet or outlet of the lower pipe body, and the inner inclined surface faces the water inlet or outlet of the base pipe.

[0006] Furthermore, the tube seat is generally truncated cylindrical in shape.

[0007] Furthermore, the angle between the inner inclined surface and the bottom surface is less than 45°, and the inner inclined surface is provided with a mounting groove for accommodating the reflector.

[0008] Furthermore, an opening is provided on the outer curved surface of one of the tube seats, the opening extends inward at an incline to form a insertion groove, and the top surface of the insertion groove is arranged parallel to the inner inclined surface.

[0009] Furthermore, the two inner sides of the insertion slot are provided with inwardly recessed positioning grooves.

[0010] Furthermore, a plug-in block is provided protruding on the inner bottom wall of the lower tube body. The plug-in block includes a front inclined surface and a rear inclined surface arranged opposite each other. The front inclined surface and the rear inclined surface are connected to side straight surfaces on both sides. The plug-in block is plugged into the plug-in groove. The rear inclined surface is parallel to and fits against the top surface of the plug-in groove. The front inclined surface closes the opening.

[0011] Furthermore, a positioning block is provided on the side surface, and the positioning block is inserted into the positioning groove.

[0012] Furthermore, the base tube has guide sections extending outward at both ends, the inner end face of the guide section is bent and connected to the inner inclined surface, and an inwardly recessed inner surface is provided between the two guide sections.

[0013] This utility model has the following beneficial effects: This invention uses three reflectors and two transducers to form a W-shaped reflection path. At the same time, the angle of the reflectors is less than 45°, which reduces fluid resistance, thereby reducing pressure loss, ensuring efficient propagation and reception of ultrasonic signals, and enhancing anti-interference capability.

[0014] This utility model features a separate structure for the guide tube and the lower tube, which facilitates the inspection and replacement of the guide tube and its components.

[0015] This invention maintains a stable inflow velocity while reducing pressure loss through a specific structure of the tube seat and guide section. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the ultrasonic water meter in Example 1; Figure 2 for Figure 1 A cross-sectional schematic diagram; Figure 3 This is a schematic diagram of the ultrasonic path of the ultrasonic water meter in Example 1; Figure 4 This is a partially enlarged structure of the upper box in Example 1; Figure 5 for Figure 4 A diagram from another angle; Figure 6 for Figure 5 A locally magnified structure; Figure 7 for Figure 1 Enlarged structure of the central guide tube; Figure 8 for Figure 7 A diagram from another angle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1 like Figures 1-3 As shown, the ultra-low pressure loss ultrasonic water meter in this embodiment is conventionally composed of a water meter body and an electronic control unit and a detection unit disposed within the water meter body. Here, the water meter body includes an upper housing 10 and a lower tube 20 disposed at the lower end of the upper housing 10. The electronic control unit is disposed within the upper housing 10, and the lower tube 20 is for fluid to pass through. The electronic control unit is conventionally composed of electrical components such as a circuit board and a battery. The upper housing 10 and the lower tube 20 are integrally formed to prevent leakage.

[0020] Specifically, the detection unit includes a guide tube 30, a reflector 41, and a transducer 42. Two transducers 42 are disposed in the upper housing 10, and three reflectors 41 are disposed in the guide tube 30. The ultrasonic path formed by the transducers 42 and the reflectors 41 is W-shaped. The guide tube 30 is detachably disposed in the lower housing 20 and is connected to the lower housing 20.

[0021] Combination Figures 4-8 As shown, the guide pipe 30 includes a base pipe 50 and pipe seats 60 disposed at opposite ends of the base pipe 50. The pipe seats 60 extend axially outward from the bottom wall of the base pipe 50 to form a bottom surface. An outer curved surface 61 and an inner inclined surface 62 are provided at the upper end of the bottom surface. The outer curved surface 61 faces the water inlet or outlet of the lower pipe body 20, and the inner inclined surface 62 faces the water inlet or outlet of the base pipe 50. Here, the pipe seat 60 is generally obliquely truncated cylindrical, and the outer curved surface 61 facilitates water inlet and outlet and reduces resistance.

[0022] Furthermore, the angle between the inner inclined surface 62 and the bottom surface is less than 45°. The inner inclined surface 62 is provided with an installation groove 621 for accommodating the reflector 41. Correspondingly, an accommodating groove 501 is provided at the upper end of the base tube 50. The accommodating groove 501 is used to install another reflector 41. The reflector 41 and the base tube 50 can be integrally formed.

[0023] Correspondingly, two slots 101 for mounting transducers 42 are provided on the inner bottom wall of the upper housing 10.

[0024] Additionally, an opening 611 is provided on the outer curved surface 61 of the tube seat 60. The opening 611 extends inward at an inward angle to form a insertion groove 612. The top surface of the insertion groove 612 is parallel to the inner inclined surface 62. The two inner sides of the insertion groove 612 are provided with inwardly recessed positioning grooves 613.

[0025] Correspondingly, a plug-in block 21 is provided protruding on the inner bottom wall of the lower tube body 20. The plug-in block 21 includes a front inclined surface 211 and a rear inclined surface 212 arranged opposite to each other. The front inclined surface 211 and the rear inclined surface 212 are connected to side straight surfaces 213 on both sides. The plug-in block 21 is plugged into the plug-in groove 612. The rear inclined surface 212 is parallel to and fits against the top surface of the plug-in groove 612. The front inclined surface 211 closes the opening 611. A positioning block 214 is provided on the side straight surface 213. The positioning block 214 is plugged into the positioning groove 613.

[0026] In use, the end of the guide tube 30 with the opening 111 is inserted into the lower tube body 20 with the rear inclined surface 212 of the insertion block 21 in the direction of the insertion block 21 until the positioning block 214 is engaged with the positioning groove 613 to complete the insertion and fixing.

[0027] Among them, guide sections 51 are provided at both ends of the base pipe 50. The inner end face 511 of the guide section 51 is bent and connected to the inner inclined surface 62. The inner end face 511 is concave inward. An inwardly concave inner surface 52 is provided between the two guide sections 51 to improve the stability of water inlet and outlet and reduce resistance.

[0028] The main body of the water meter can be made of a composite material of PPS and glass fiber to enhance its pressure resistance and stability, ensure long-term performance under high pressure, and improve environmental protection and water safety.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An ultrasonic water meter with ultra-low pressure loss, comprising a water meter body and an electronic control unit and a detection unit disposed within the water meter body, characterized in that, The water meter body includes an upper housing and a lower pipe body located at the lower end of the upper housing. The electrical control unit is located inside the upper housing, and the lower pipe body is for fluid to pass through. The detection unit includes a guide tube, a reflector, and a transducer. Two transducers are disposed in the upper housing, and three reflectors are disposed in the guide tube. The ultrasonic path formed by the transducers and reflectors is W-shaped. The guide tube is detachably disposed in the lower housing and communicates with the lower housing.

2. The ultrasonic water meter with ultra-low pressure loss according to claim 1, characterized in that: The guide pipe includes a base pipe and pipe seats disposed at opposite ends of the base pipe. The pipe seats extend axially outward from the bottom wall of the base pipe to form a bottom surface. The upper end of the bottom surface is provided with an outer curved surface and an inner inclined surface. The outer curved surface faces the water inlet or outlet of the lower pipe body, and the inner inclined surface faces the water inlet or outlet of the base pipe.

3. The ultrasonic water meter with ultra-low pressure loss according to claim 2, characterized in that: The tube seat is generally truncated cylindrical in shape.

4. The ultrasonic water meter with ultra-low pressure loss according to claim 2, characterized in that: The angle between the inner inclined surface and the bottom surface is less than 45°, and the inner inclined surface is provided with a mounting groove to accommodate the reflector.

5. The ultrasonic water meter with ultra-low pressure loss according to claim 2, characterized in that: An opening is provided on the outer curved surface of one of the tube seats. The opening extends inward at an incline to form a insertion groove. The top surface of the insertion groove is parallel to the inner inclined surface.

6. The ultrasonic water meter with ultra-low pressure loss according to claim 5, characterized in that: The two inner sides of the insertion slot are provided with inwardly recessed positioning grooves.

7. The ultrasonic water meter with ultra-low pressure loss according to claim 6, characterized in that: A plug-in block is provided on the inner bottom wall of the lower tube. The plug-in block includes a front inclined surface and a rear inclined surface arranged opposite each other. The front inclined surface and the rear inclined surface are connected to side straight surfaces on both sides. The plug-in block is plugged into the plug-in groove. The rear inclined surface is parallel to and fits against the top surface of the plug-in groove. The front inclined surface closes the opening.

8. The ultrasonic water meter with ultra-low pressure loss according to claim 7, characterized in that: A positioning block is provided on the side straight surface, and the positioning block is inserted into the positioning groove.

9. The ultrasonic water meter with ultra-low pressure loss according to claim 2, characterized in that: The base tube has guide sections extending outward at both ends. The inner end face of the guide section is bent and connected to the inner inclined surface. An inwardly recessed inner surface is provided between the two guide sections.

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