Universal water meter suitable for various pipe diameters

Abstract

This utility model discloses a universal water meter adaptable to various pipe diameters, including a water meter body. Connecting pipes are provided on both the left and right sides of the water meter body. An adapter plate is connected to the end of each connecting pipe via a flange. The adapter plate includes a fixing ring, an adjusting ring, an outer conical sleeve, and an inner conical sleeve. The fixing ring is connected to the connecting pipe via the flange. The two ends of the adjusting ring are rotatably connected to the fixing ring and the outer conical sleeve, respectively. The inner conical sleeve is composed of three independent sleeve segments joined together. The inner conical sleeve is movably fitted inside the outer conical sleeve, and the mating surface between the inner and outer conical sleeves is a conical surface. A groove is formed along the axial direction of the conical surface on the inner wall of the outer conical sleeve. A slider is provided on the outer wall of the inner conical sleeve, and the slider slides in conjunction with the groove. The inner hole of the adjusting ring is a conical hole matching the end of the inner conical sleeve, and the inner hole of the adjusting ring and the end of the inner conical sleeve form a self-locking helical pair. A stepped hole is formed inside the inner conical sleeve. This utility model can effectively connect the water meter to water pipes of different diameters.

Description

Technical Field

[0001] This utility model relates to the field of water meter technology, specifically to a universal water meter that is compatible with various pipe diameters. Background Technology

[0002] A water meter is an instrument used to measure water flow. Most of them measure the cumulative flow of water. They are generally divided into two categories: volumetric water meters and velocity water meters. Originating in the UK, water meters have been developed for nearly two hundred years. When selecting a water meter, you should first estimate the flow rate and range you usually use, and then choose the water meter with the closest commonly used flow rate as your first choice.

[0003] According to the utility model patent with Chinese patent application number 201922129384.8, a water meter with a buffer stabilization structure is used to facilitate the observation of water consumption and improves stability, thus protecting the water meter and extending its service life. However, the installation of this water meter cannot be adapted to water pipes of different diameters, which reduces the installation and application range of the water meter. Therefore, it is necessary to propose a universal water meter that can be adapted to multiple pipe diameters to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of the prior art, this utility model provides a universal water meter that is compatible with various pipe diameters, thus solving the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A universal water meter adaptable to various pipe diameters includes a water meter body. Connecting pipes are provided on both the left and right sides of the water meter body. An adapter plate is connected to the end of each connecting pipe via a flange. The adapter plate includes a fixed ring, an adjusting ring, an outer conical sleeve, and an inner conical sleeve. The fixed ring is connected to the connecting pipe via the flange. The two ends of the adjusting ring are rotatably connected to the fixed ring and the outer conical sleeve, respectively. The inner conical sleeve is composed of three independent sleeve segments joined together. The inner conical sleeve is movably fitted within the outer conical sleeve, and the mating surface between the inner and outer conical sleeves is a conical surface. A groove is formed along the axial direction of the conical surface on the inner wall of the outer conical sleeve. A slider is provided on the outer wall of the inner conical sleeve, and the slider slides in conjunction with the groove. The inner hole of the adjusting ring is a conical hole matching the end of the inner conical sleeve, and the inner hole of the adjusting ring and the end of the inner conical sleeve form a self-locking helical pair. A stepped hole is formed inside the inner conical sleeve.

[0007] Preferably, the inner conical sleeve has three stepped holes.

[0008] Preferably, the three-stage stepped holes are matched with water pipes of DN15, DN20, and DN25.

[0009] Preferably, the inner wall of the inner conical sleeve is provided with an anti-slip elastic pad.

[0010] Preferably, a waterproof sealing ring is provided at the mating surface of the adjusting ring, the fixing ring, and the outer cone sleeve.

[0011] Preferably, the adjusting ring has a threaded connection hole on its surface.

[0012] Preferably, a diamond-like carbon film is provided on the mating surfaces of the outer conical sleeve and the inner conical sleeve.

[0013] Preferably, the fixing ring port is detachably connected to the metal filter screen.

[0014] Compared with the prior art, the technical solution of this application has the following advantages: simple structure, reasonable design, and can effectively realize the connection between the water meter and water pipes of different diameters. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional view of the adapter disk in this utility model;

[0017] Figure 3 for Figure 2 AA section view in the middle;

[0018] Figure 4 This is a side view of the adapter disk in this utility model.

[0019] In the diagram: 1. Water meter body; 2. Connecting pipe; 3. Flange; 4. Adapter plate; 401. Fixing ring; 402. Adjusting ring; 403. Outer conical sleeve; 404. Inner conical sleeve; 5. Sliding block; 6. Stepped hole; 7. Anti-slip elastic pad; 8. Waterproof sealing ring; 9. Threaded connection hole; 10. Metal filter screen. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-4 A universal water meter adaptable to multiple pipe diameters includes a water meter body 1, with connecting pipes 2 symmetrically arranged on the left and right sides of the water meter body 1, and an adapter plate 4 connected to the end of the connecting pipe 2 via a flange 3.

[0022] The adapter plate 4 includes a fixed ring 401, an adjusting ring 402, an outer conical sleeve 403, and an inner conical sleeve 404. The fixed ring 401 is rigidly connected to the connecting pipe 2 via a flange 3. The two ends of the adjusting ring 402 are rotatably connected to the fixed ring 401 and the outer conical sleeve 403, respectively. The inner conical sleeve 404 is composed of three independent sleeve pieces spliced ​​together. The inner conical sleeve 404 is movably fitted inside the outer conical sleeve 403, and the mating surface between the inner conical sleeve 404 and the outer conical sleeve 403 is a conical surface. A sliding groove is opened on the inner wall of the outer conical sleeve 403 along the axial direction of the conical surface. A slider 5 is provided on the outer wall of the inner conical sleeve 404, and the slider 5 is slidably fitted with the sliding groove. The inner hole of the adjusting ring 402 is a conical hole that matches the end of the inner conical sleeve 404, and the inner hole of the adjusting ring 402 and the end of the inner conical sleeve 404 form a self-locking screw pair. In this embodiment, a conical thread fit is adopted. A stepped hole 6 is opened in the inner conical sleeve 404.

[0023] In this embodiment, the inner tapered sleeve 404 is machined with a precision stepped hole 6. The stepped hole 6 is a three-level stepped hole, which corresponds to water pipes with three standard pipe diameters: DN15 (Φ18mm), DN20 (Φ25mm), and DN25 (Φ32mm).

[0024] This invention drives the inner conical sleeve 404 to move axially by rotating the adjusting ring 402, which forces the three independent sleeves to slide along the inner wall of the outer conical sleeve 404 to generate radial contraction / expansion, thereby achieving adaptive clamping of multi-specification water pipes.

[0025] In this embodiment, the inner wall of the inner conical sleeve 404 is provided with an anti-slip elastic pad 7. A waterproof sealing ring 8 is provided at the mating surface of the adjusting ring 402, the fixing ring 401, and the outer conical sleeve 403. A waterproof sealing ring 8 is provided between the adjusting ring 402 and the inner conical sleeve 404 to prevent leakage.

[0026] As a preferred embodiment, the adjusting ring 402 has six threaded connection holes 9 evenly distributed circumferentially on its surface. An extension rod can be installed through the threaded connection holes 9 to work with a torque wrench to achieve precise control of the preload.

[0027] As a preferred embodiment, a diamond-like carbon film is deposited on the mating surfaces of the outer conical sleeve 403 and the inner conical sleeve 404, thereby reducing the coefficient of friction to 0.08 and the wear rate to 70%.

[0028] As a preferred embodiment, the fixed ring 401 port is detachably connected to the metal filter screen 10, which effectively intercepts impurity particles in the water and avoids damage to the water meter body 1.

[0029] Typical operating condition verification:

[0030] In a smart water management pilot project, the device successfully completed 20,000 on / off cycle tests, with the leakage rate consistently controlled within the range of ≤0.01L / h, far exceeding the 0.1L / h limit requirement of the GB / T 778-2018 standard.

[0031] Table 1. Component Introduction

[0032]

[0033] The process of using this utility model:

[0034] 1. Insert the end of the water pipe into the stepped hole 6 of the inner conical sleeve 404, ensuring that it is completely aligned with the target hole;

[0035] 2. Rotate the adjusting ring 402, and use the tapered thread in its inner hole to push the inner tapered sleeve 404 to move axially along the slide groove;

[0036] 3. Since the mating surfaces of the inner conical sleeve 404 and the outer conical sleeve 403 are designed with a 1:10 taper, the axial movement is converted into radial force, causing the three sleeves to tighten synchronously. The anti-slip elastic pad 7 embedded in the inner wall of the inner conical sleeve 404 is deformed by compression, generating a normal clamping force, which ultimately achieves reliable clamping of the water pipe inserted into the stepped hole 6.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A universal water meter adaptable to various pipe diameters, comprising a water meter body (1), wherein connecting pipes (2) are provided on both the left and right sides of the water meter body (1), characterized in that: The end of the connecting pipe (2) is connected to an adapter plate (4) via a flange (3). The adapter plate (4) includes a fixing ring (401), an adjusting ring (402), an outer conical sleeve (403), and an inner conical sleeve (404). The fixing ring (401) is connected to the connecting pipe (2) via the flange (3). The two ends of the adjusting ring (402) are rotatably connected to the fixing ring (401) and the outer conical sleeve (403) respectively. The inner conical sleeve (404) is composed of three independent sleeve pieces spliced ​​together, and the inner conical sleeve (404) is movably fitted. Inside the outer conical sleeve (403), and the mating surface between the inner conical sleeve (404) and the outer conical sleeve (403) is a conical surface, the inner wall of the outer conical sleeve (403) is provided with a sliding groove along the axial direction of the conical surface, and the outer wall of the inner conical sleeve (404) is provided with a slider (5), the slider (5) is slidably engaged with the sliding groove, the inner hole of the adjusting ring (402) is a conical hole that matches the end of the inner conical sleeve (404), and the inner hole of the adjusting ring (402) and the end of the inner conical sleeve (404) form a self-locking spiral pair, and a stepped hole (6) is provided inside the inner conical sleeve (404).

2. The universal water meter adaptable to multiple pipe diameters according to claim 1, characterized in that: The inner conical sleeve (404) has a three-stage stepped hole.

3. The universal water meter adaptable to multiple pipe diameters according to claim 2, characterized in that: The three-stage stepped holes are matched with DN15, DN20, and DN25 water pipes.

4. The universal water meter adaptable to multiple pipe diameters according to claim 1, characterized in that: The inner wall of the inner conical sleeve (404) is provided with an anti-slip elastic pad (7).

5. The universal water meter adaptable to multiple pipe diameters according to claim 1, characterized in that: A waterproof sealing ring (8) is provided at the mating surface of the adjusting ring (402) with the fixing ring (401) and the outer cone sleeve (403).

6. The universal water meter adaptable to multiple pipe diameters according to claim 1, characterized in that: The surface of the adjusting ring (402) is provided with a threaded connection hole (9).

7. The universal water meter adaptable to multiple pipe diameters according to claim 1, characterized in that: The mating surfaces of the outer conical sleeve (403) and the inner conical sleeve (404) are provided with a diamond-like carbon film.

8. The universal water meter adaptable to multiple pipe diameters according to claim 1, characterized in that: The fixed ring (401) port is detachably connected to the metal filter (10).

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