Long-service-life rotary wing type high-sensitivity wet type water meter

Abstract

The utility model provides a long-life rotor type high-sensitivity wet-type water meter which comprises a water meter shell, the water meter shell is provided with two interfaces in mirror symmetry, and an impeller disc is fixedly installed on the inner side of a water filter screen installed in the water meter shell. An anti-rotation impeller installed on the gear counter is installed on the inner side of the impeller disc, the impeller disc and the gear counter are installed together, the gear counter and the water meter shell are installed together in a threaded meshing mode, and the water meter cover is installed on the gear counter. Wherein the counting dial is mounted at the upper part of the outer part of the water meter shell through thread engagement; according to the anti-rotation mechanism, the ratchet disc is precisely matched with the magnetic pawl, the impeller is automatically locked when water flow is reversed, and complex installation and maintenance of an external one-way valve are avoided. Meanwhile, the blades are of an arc-shaped sheet structure, the distance is gradually reduced, water flow changes are flexibly adapted, stress is even, and rotation stability and metering precision are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary vane water meters, in particular to a long-life rotary vane high-sensitivity wet water meter. Background Art

[0002] In existing water supply systems, rotary vane wet-type water meters, as important metering equipment, are widely used in various water flow measurement applications. However, existing rotary vane wet-type water meters have some obvious design deficiencies. First, this type of water meter usually does not have an impeller anti-rotation mechanism, but instead relies on an external one-way valve to prevent water backflow, thereby preventing the impeller from rotating when the water flow reverses. Although this design method has played a role in preventing the water meter from reversing to a certain extent, the one-way valve, as an independent component, is relatively complicated to install and maintain, and is prone to failure due to long-term use or water quality problems, resulting in inaccurate water meter measurement.

[0003] Furthermore, the impeller blades in traditional rotary vane wet-type water meters are typically constructed with C-shaped or rectangular blades. These blades experience uneven distribution of the impact force exerted by the water flow during rotation, leading to unbalanced force on the blades and compromising the impeller's rotational stability and accuracy. Furthermore, these C-shaped or rectangular blades are susceptible to erosion and wear over time, shortening the water meter's service life.

[0004] Therefore, it is very necessary to invent a long-life rotor-type highly sensitive wet water meter. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a long-life rotor-type high-sensitivity wet water meter, including a water meter housing, an interface, a water filter net, an impeller disc, an anti-rotation impeller, a gear counter, a water meter cover and a counting disk. The water meter housing is provided with two mirror-symmetrical interfaces, the impeller disc is fixedly installed on the inner side of the water filter net installed inside the water meter housing, the anti-rotation impeller installed on the gear counter is installed on the inner side of the impeller disc, the impeller disc and the gear counter are installed together, and the gear counter is threadedly engaged with the water meter housing, and the water meter cover is installed on the gear counter; wherein the counting disk is installed above the outside of the water meter housing by threaded engagement.

[0006] Preferably, the water filter net, impeller disc, anti-rotation impeller, gear counter, water meter cover and counting disc are vertically distributed, and the water filter net and impeller disc are located below the gear counter.

[0007] Preferably, the anti-rotation impeller includes an impeller shaft, an impeller head and impeller blades. The upper end of the impeller shaft is fixed to the input end of the gear counter, and a plurality of impeller blades are installed on the impeller head fixedly installed at the lower end of the impeller shaft.

[0008] Preferably, the impeller blade is an arc-shaped structure, and one end of the impeller blade is tangentially fixed to the impeller head.

[0009] Preferably, there is a spacing between the impeller blades, wherein the spacing between the impeller blades gradually decreases toward the impeller head.

[0010] Preferably, a ratchet disc is fixedly mounted on the upper end of the impeller shaft, an adsorption magnet is provided on the middle outer surface of the ratchet disc facing forward, and the ratchet disc is located above the impeller head.

[0011] Preferably, the ratchet disc is engaged with one end of the magnetic pawl, and the other end of the magnetic pawl is rotatably mounted under the bottom cover of the magnetic pawl, and a spring sheet fixedly mounted on the bottom cover of the magnetic pawl contacts the surface of the magnetic pawl.

[0012] Preferably, one end of the magnetic pawl that engages with the ratchet disc is provided with a magnet that is attracted to the adsorption magnet.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The utility model achieves significant beneficial effects through the built-in anti-rotation mechanism and optimized blade structure design. Specifically, the anti-rotation impeller cleverly set inside the water meter uses the precise coordination of the ratchet disc and the magnetic pawl to automatically lock the impeller when the water flow reverses, effectively avoiding the complex installation and maintenance requirements of the external one-way valve, which not only improves the reliability and stability of the water meter, but also significantly reduces the cost of use. At the same time, the impeller blades adopt an arc-shaped sheet structure and are designed with a gradually decreasing spacing. This innovative design allows the blades to adapt to changes in water flow more flexibly, with uniform force, significantly improving rotational stability and metering accuracy. In addition, the arc-shaped blades also have excellent anti-scouring and wear resistance, further extending the service life of the water meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the explosion structure of the utility model.

[0016] Figure 2 This utility model Figure 1 Another perspective structural diagram of .

[0017] Figure 3 It is a schematic diagram of the anti-rotation impeller structure of the utility model.

[0018] Figure 4 This utility model Figure 2 Schematic diagram of the local enlarged structure at point A.

[0019] In the picture:

[0020] Water meter housing 1, interface 2, water filter 3, impeller disc 4, anti-rotation impeller 5, impeller shaft 51, impeller head 52, impeller blade 53, ratchet disc 54, adsorption magnet 55, magnetic pawl 56, spring sheet 57, gear counter 6, water meter cover 7, counting disc 8. DETAILED DESCRIPTION

[0021] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0022] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0023] As attached Figure 1 To the attached Figure 4 As shown:

[0024] The long-life rotor-type high-sensitivity wet-type water meter provided by the utility model includes a water meter housing 1, an interface 2, a water filter 3, an impeller disc 4, an anti-rotation impeller 5, a gear counter 6, a water meter cover 7 and a counting disk 8. The water meter housing 1 is provided with two mirror-symmetrical interfaces 2, the impeller disc 4 is fixedly installed on the inner side of the water filter 3 installed inside the water meter housing 1, the anti-rotation impeller 5 installed on the gear counter 6 is installed on the inner side of the impeller disc 4, the impeller disc 4 and the gear counter 6 are installed together, and the gear counter 6 is threadedly engaged with the water meter housing 1 and installed together, and the water meter cover 7 is installed on the gear counter 6; wherein the counting disk 8 is installed above the outside of the water meter housing 1 through threaded engagement.

[0025] Furthermore, the water filter net 3 , the impeller disc 4 , the anti-rotation impeller 5 , the gear counter 6 , the water meter cover 7 and the counting disc 8 are vertically distributed, and the water filter net 3 and the impeller disc 4 are located below the gear counter 6 .

[0026] Furthermore, the anti-rotation impeller 5 includes an impeller shaft 51, an impeller head 52, and impeller blades 53. The upper end of the impeller shaft 51 is tightly fixed to the input end of the gear counter 6, ensuring that the rotational energy of the water flow is accurately transmitted to the gear counter 6. The impeller head 52 is fixedly mounted at the lower end of the impeller shaft 51, and a number of impeller blades 53 are carefully arranged on the impeller head 52. These blades are key to the impact of the water flow and drive the impeller rotation.

[0027] Furthermore, the impeller blades 53 employ an arcuate structure. This design not only enables the blades to better adapt to changes in the water flow, improving rotational efficiency, but also enhances the blades' ability to resist erosion. In particular, one end of the impeller blades 53 is fixedly mounted tangentially to the impeller head 52, ensuring the blades' stability and reliability during rotation. Furthermore, the impeller blades 53 are cleverly spaced apart, with these spacings gradually decreasing as they approach the impeller head 52. This design facilitates smoother flow through the gaps between the blades, reducing flow resistance and improving the uniformity of force applied to the blades.

[0028] Furthermore, a ratchet disc 54 is fixedly installed at the upper end of the impeller shaft 51. The ratchet disc 54 not only serves to further fix the impeller shaft, but also realizes the anti-rotation function through its special structure. An adsorption magnet 55 is set forward on the middle outer surface of the ratchet disc 54. This design enables the ratchet disc to reliably engage and lock with the magnetic pawl 56. One end of the magnetic pawl 56 engages with the ratchet disc 54, and the other end is rotatably installed under the bottom cover of the magnetic pawl 56. The spring sheet 57 fixedly installed on the bottom cover contacts the surface of the magnetic pawl 56, providing the necessary reset elastic force for the pawl.

[0029] Furthermore, the end of the magnetic pawl 56 that engages the ratchet disc 54 is equipped with a magnet that matches the attraction magnet 55. This design allows the pawl to more securely lock the ratchet disc 54 when engaged, preventing it from rotating when the water flow reverses. At the same time, the magnetism of the magnetic pawl 56 and the elastic force of the spring plate 57 combine to provide the pawl with sufficient engagement and return force, ensuring the reliability and stability of the anti-rotation mechanism.

[0030] The working principle is as follows: First, water flows into the water meter through one of the interfaces 2 set on the water meter housing 1. The design of these two interfaces ensures that water can flow smoothly and evenly into and out of the water meter, avoiding measurement errors caused by uneven water flow.

[0031] The water then flows through the filter screen 3. The main function of the filter screen 3 is to filter out impurities and particulate matter in the water, preventing them from entering the water meter and causing damage. After being filtered by the filter screen 3, the water becomes purer, which is conducive to accurate measurement of the water meter.

[0032] Next, when the water impacts the impeller blades 53, it drives the impeller head 52 and the impeller shaft 51 to rotate together. Because the impeller blades 53 adopt an arc-shaped structure and the spacing between the blades gradually decreases, the water can flow more smoothly through the gaps between the blades, reducing water flow resistance and improving the uniformity of the force applied to the blades, thereby improving the rotation efficiency and stability of the impeller.

[0033] As the impeller rotates, the impeller shaft 51 drives the input end of the gear counter 6 to rotate. Gear counter 6 incorporates a series of precise gear mechanisms that convert the impeller's rotation into the rotation of the counter disk, thereby accurately measuring the water flow rate. Gear counter 6 is also threadedly mounted to the water meter housing 1, ensuring its stability and reliability within the meter.

[0034] A ratchet disc 54 is fixedly mounted on the upper end of the impeller shaft 51. Its special structure allows it to rotate in only one direction and is locked in the other direction. When water flows normally, the ratchet disc 54 rotates with the impeller shaft 51 and securely engages and locks with the magnetic pawl 56 via the magnet 55. This way, even if the water flow suddenly stops or reverses, the ratchet disc 54 is securely locked by the magnetic pawl 56, preventing the impeller from rotating, thereby ensuring accurate water meter readings.

[0035] Finally, after being measured by gear counter 6, the water continues to flow out of the water meter. Meanwhile, counter disk 8, mounted on the upper portion of the exterior of water meter housing 1, rotates with the rotation of gear counter 6, displaying the current water flow rate. The user can monitor the meter's measurement status by observing the reading on counter disk 8.

[0036] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the scope of protection of the utility model.

Claims

1. Long-life rotor-type high-sensitivity wet-type water meter, characterized by: The invention comprises a water meter housing (1), an interface (2), a water filter net (3), an impeller disc (4), an anti-rotation impeller (5), a gear counter (6), a water meter cover (7) and a counting disk (8); the water meter housing (1) is provided with two mirror-symmetrical interfaces (2); the impeller disc (4) is fixedly mounted on the inner side of the water filter net (3) installed inside the water meter housing (1); the anti-rotation impeller (5) installed on the gear counter (6) is mounted on the inner side of the impeller disc (4); the impeller disc (4) and the gear counter (6) are mounted together, and the gear counter (6) is screw-engaged with the water meter housing (1) and the water meter cover (7) is mounted on the gear counter (6); and the counting disk (8) is screw-engaged and mounted above the outer side of the water meter housing (1).

2. The long-life rotary vane high-sensitivity wet-type water meter according to claim 1, characterized in that: The water filter net (3), impeller disc (4), anti-rotation impeller (5), gear counter (6), water meter cover (7) and counting disc (8) are arranged in a vertical distribution, and the water filter net (3) and impeller disc (4) are located below the gear counter (6).

3. The long-life rotary vane high-sensitivity wet-type water meter according to claim 1, characterized in that: The anti-rotation impeller (5) comprises an impeller shaft (51), an impeller head (52) and impeller blades (53); the upper end of the impeller shaft (51) is fixed to the input end of the gear counter (6); and a plurality of impeller blades (53) are mounted on the impeller head (52) fixedly mounted at the lower end of the impeller shaft (51).

4. The long-life rotary vane high-sensitivity wet-type water meter according to claim 3, characterized in that: The impeller blade (53) is an arc-shaped blade structure, and one end of the impeller blade (53) is tangentially fixedly installed with the impeller head (52).

5. The long-life rotary vane high-sensitivity wet-type water meter according to claim 4, characterized in that: There is a distance between the impeller blades (53), wherein the distance between the impeller blades (53) gradually decreases in a direction approaching the impeller head (52).

6. The long-life rotary vane high-sensitivity wet-type water meter according to claim 3, characterized in that: A ratchet disc (54) is fixedly mounted on the upper end of the impeller shaft (51), and an adsorption magnet (55) is provided on the middle outer surface of the ratchet disc (54) facing forward. The ratchet disc (54) is located above the impeller head (52).

7. The long-life rotary vane high-sensitivity wet-type water meter according to claim 6, characterized in that: The ratchet disc (54) is engaged with one end of the magnetic pawl (56), and the other end of the magnetic pawl (56) is rotatably mounted below the bottom cover of the magnetic pawl (56). A spring sheet (57) fixedly mounted on the bottom cover of the magnetic pawl (56) contacts the surface of the magnetic pawl (56).

8. The long-life rotary vane high-sensitivity wet-type water meter according to claim 7, characterized in that: One end of the magnetic pawl (56) that engages with the ratchet disc (54) is provided with a magnet that is attracted to the adsorption magnet (55).

Images