CN219608112U - Water meter impeller - Google Patents
Water meter impeller Download PDFInfo
- Publication number
- CN219608112U CN219608112U CN202320523247.6U CN202320523247U CN219608112U CN 219608112 U CN219608112 U CN 219608112U CN 202320523247 U CN202320523247 U CN 202320523247U CN 219608112 U CN219608112 U CN 219608112U
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- impeller
- water meter
- cavity
- receiving
- receiving bore
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model discloses a water meter impeller, comprising: the impeller comprises an impeller body, a rotating shaft and a rotating shaft, wherein the impeller body is provided with a containing cavity, and the containing cavity is provided with an opening; the piston assembly is movably arranged in the accommodating cavity, and is matched with the inner wall of the accommodating cavity in a sealing way, so that the accommodating cavity forms a sealing cavity, and the inside of the sealing cavity is filled with gas; and the adjusting channel is formed on the impeller body, one end of the adjusting channel extends to the opening of the accommodating cavity, and the other end of the adjusting channel is communicated with a running water flowing channel, so that running water can flow through the adjusting channel to act on the piston assembly. The utility model can improve the metering precision and the metering stability of the water meter.
Description
Technical Field
The utility model relates to the technical field of water meters, in particular to a water meter impeller.
Background
The water meter is used as an important metering device for water consumption, and the working principle is that when water enters an impeller box from a water meter shell to impact an impeller, the impeller generates a driving moment, and the driving moment of the impeller is larger than the resistance moment of the impeller, the impeller starts to rotate. When the flow is fixed, the driving moment and the resisting moment are balanced, and the impeller keeps rotating at a constant speed. The flow rate and the accumulated flow rate of the water fluid in the pipeline are measured by sensing the rotation speed of the impeller in the water flow.
With the improvement of the metering grade of the water meter, certain deviation and fluctuation can be generated on the flow performance and the smoothness of the flow curve of the water meter under different water pressure conditions. How to ensure the stability of the metering characteristics of the water meter under different water pressure conditions becomes an important subject for designing and developing the water meter in the water meter industry. The design of the water meter metering mechanism directly affects the stability of the metering characteristics of the water meter under different water pressure conditions, wherein the structure of the impeller, particularly the integral density of the impeller, has the greatest influence on the water meter under different water pressure conditions. Therefore, how to optimize the structural design of the water meter impeller, so that the overall density of the water meter impeller can be automatically adjusted along with the water pressure change in the water meter, becomes a breakthrough point of the problem.
Disclosure of Invention
The utility model provides a water meter impeller which can improve the metering accuracy and the metering stability of a water meter.
In order to solve the above technical problems, the present utility model provides a water meter impeller, comprising:
the impeller comprises an impeller body, a rotating shaft and a rotating shaft, wherein the impeller body is provided with a containing cavity, and the containing cavity is provided with an opening;
the piston assembly is movably arranged in the accommodating cavity, and is matched with the inner wall of the accommodating cavity in a sealing way, so that the accommodating cavity forms a sealing cavity, and the inside of the sealing cavity is filled with gas;
and the adjusting channel is formed on the impeller body, one end of the adjusting channel extends to the opening of the accommodating cavity, and the other end of the adjusting channel is communicated with a running water flowing channel, so that running water can flow through the adjusting channel to act on the piston assembly.
As a preferable aspect of the above-described aspect, the impeller body includes a middle shaft portion and impeller blades, and the impeller blades are disposed in an annular array on the middle shaft portion.
As the preferable of the above technical scheme, the piston assembly comprises a piston body and a sealing ring, an annular groove is arranged on the outer surface of the piston body, the sealing ring is arranged in the annular groove, and the sealing ring is in sealing contact with the inner wall of the accommodating cavity.
As the preference of above-mentioned technical scheme, the lower extreme central point of well shaft part puts and is provided with the centre bore, hold the cavity and be located in the centre bore, the water gauge impeller still includes the impeller bush, the impeller bush set up in the centre bore, the adjustment passageway includes at least and forms in the extension groove that just extends along the axial direction of centre bore of the surface of impeller bush, the surface of impeller bush with the interior surface sealing fit of centre bore.
Preferably, in the above technical solution, the extending grooves are distributed on the outer surface of the impeller bushing in an annular array, so that the impeller bushing takes the shape of an external gear.
As the preference of above-mentioned technical scheme, the centre bore is the shoulder hole, the shoulder hole includes first accommodation hole and second accommodation hole, the second accommodation hole is close to the lower extreme of axis portion, the aperture of first accommodation hole is less than the aperture of second accommodation hole, impeller bush install in the second accommodation hole, hold the cavity set up in the first accommodation hole.
As a preferable mode of the above technical scheme, the water meter impeller further comprises a housing cylinder, a first end of the housing cylinder is closed, a second end of the housing cylinder is formed with the opening, the housing cavity is formed in the housing cylinder, the housing cylinder is mounted in the first housing hole, and the opening faces the second housing hole.
As a preferable aspect of the above-mentioned technical solution, the length of the first accommodating hole is greater than the length of the accommodating cylinder so that the second end of the accommodating cylinder is located inside the first accommodating hole, and the adjusting channel further includes a long groove formed on the inner surface of the first accommodating hole, the long groove extends from the position of the second end of the accommodating cylinder to the lower end surface of the first accommodating hole, and the outer surface of the accommodating cylinder is in sealing fit with the inner surface of the first accommodating hole.
Preferably, the elongated grooves are distributed in an annular array on the inner surface of the first accommodation hole so as to form an internal tooth shape on the inner surface of the first accommodation hole.
As a preferable mode of the above technical solution, a central mounting hole is provided at a central position of the impeller bushing, and an impeller bearing is provided in the central mounting hole.
The utility model provides a water meter impeller, which comprises an impeller body, a piston assembly, an adjusting channel and an impeller shaft, wherein the impeller body is provided with an accommodating cavity, the accommodating cavity is provided with an opening, the piston assembly is movably arranged in the accommodating cavity, the piston assembly is matched with the inner wall of the accommodating cavity in a sealing way so as to form a sealing cavity, gas is filled in the sealing cavity, when the water pressure of the impeller body in a water meter is increased, the gas sealed in the sealing cavity is compressed, so that the gas pressure and the water pressure in the sealing cavity are synchronously increased, the sealed gas volume is reduced due to the movement of the piston assembly, water in the water meter enters a space below a piston from the adjusting channel, the overall density of the water meter impeller is increased, and the sinking trend of the water meter impeller is increased; when the water pressure that the impeller body received in the water gauge reduces, the gas that seals in the sealed chamber takes place to expand to make gas pressure and the water pressure in the sealed chamber reduce simultaneously, the gas volume that seals increases because the piston removes, and the space below the piston is extruded through the adjustment passageway to the water in the water gauge, thereby makes the whole density of water gauge impeller reduce, and the trend of impeller come-up increases. Thereby realizing the purpose of automatically adjusting the integral density of the impeller along with the water pressure. The impeller of the water meter can be automatically adapted to different densities under different water pressure conditions, so that the sinking and floating state of the impeller can be automatically regulated and controlled through the water pressure, and the stability of the metering characteristic of the water meter under different water pressure conditions is realized.
The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.
Drawings
Fig. 1 shows an exploded perspective view of a water meter impeller according to this embodiment;
FIG. 2 shows a partial cross-sectional view of a water meter impeller in this embodiment;
FIG. 3 shows a partial cross-sectional view of a first angle of the impeller body in this embodiment;
FIG. 4 shows a partial cross-sectional view of another angle of the impeller body in this embodiment;
in the figure: 10. an impeller shaft; 20. an impeller body; 30. a receiving cylinder; 40. an impeller bushing; 50. an impeller bearing; 60. a piston assembly; 70. a regulating channel; 101. a mounting notch; 201. a middle shaft portion; 202. impeller blades; 203. a gear portion; 204. a central bore; 301. a housing cavity; 401. a central mounting hole; 601. a piston body; 602. a seal ring; 603. an annular groove; 701. a long strip groove; 702. an extension groove; 2031. a mounting hole; 2032. a bump; 2041. a first accommodation hole; 2042. and a second accommodation hole.
Detailed Description
In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions according to the embodiments of the present utility model will be clearly described in the following with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 4, an embodiment of the present utility model provides a water meter impeller, including:
an impeller body 20, the impeller body 20 having a receiving cavity 301, the receiving cavity 301 having an opening;
the piston assembly 60 is movably arranged in the accommodating cavity 301, and a sealing fit is arranged between the piston assembly 60 and the inner wall of the accommodating cavity 301 so that the accommodating cavity 301 forms a sealing cavity, and the inside of the sealing cavity is filled with gas;
a regulating passage 70 formed on the impeller body 20, one end of the regulating passage 70 extending to the opening of the accommodating chamber 301 and the other end of the regulating passage 70 being adapted to communicate with a flow passage of tap water so that tap water can flow through the regulating passage 70 to act on the piston assembly 60;
the impeller shaft 10 is arranged coaxially with the impeller body 20, and the impeller shaft 10 and the impeller body 20 are relatively fixed.
The embodiment provides a water meter impeller, which comprises an impeller body 20, a piston assembly 60, an adjusting channel 70 and an impeller shaft 10, wherein the impeller body 20 is provided with an accommodating cavity 301, the accommodating cavity 301 is provided with an opening, the piston assembly 60 is movably arranged in the accommodating cavity 301, the piston assembly 60 is in sealing fit with the inner wall of the accommodating cavity 301 to enable the accommodating cavity 301 to form a sealing cavity, gas is filled in the sealing cavity, when the water pressure of the impeller body 20 in a water meter increases, the gas sealed in the sealing cavity is compressed, so that the gas pressure and the water pressure in the sealing cavity synchronously increase, the sealed gas volume is reduced due to the movement of the piston assembly 60, water in the water meter enters a space below a piston from the adjusting channel 70, so that the overall density of the water meter impeller increases, and the tendency of sinking of the water meter impeller increases; when the water pressure of the impeller body 20 in the water meter is reduced, the gas sealed in the sealing cavity expands, so that the gas pressure and the water pressure in the sealing cavity are synchronously reduced, the sealed gas volume is increased due to the movement of the piston, the water in the water meter is extruded out of the space below the piston through the adjusting channel 70, the overall density of the impeller of the water meter is reduced, and the floating trend of the impeller is increased. Thereby realizing the purpose of automatically adjusting the integral density of the impeller along with the water pressure. The impeller of the water meter can be automatically adapted to different densities under different water pressure conditions, so that the sinking and floating state of the impeller can be automatically regulated and controlled by the water pressure, and the stability of the metering characteristic of the water meter under different water pressure conditions is realized
In a further implementation of the present embodiment, the impeller body 20 includes a middle shaft portion 201 and impeller blades 202, the impeller blades 202 are disposed in an annular array on the middle shaft portion 201, and the impeller shaft 10 is fixed on top of the middle shaft portion 201.
In a further implementation of the present embodiment, the piston assembly 60 includes a piston body 601 and a sealing ring 602, an annular groove 603 is provided on an outer surface of the piston body 601, the sealing ring 602 is provided in the annular groove 603, and the sealing ring 602 is in sealing contact with an inner wall of the accommodating cavity 301.
In a further implementation of this embodiment, the central hole 204 is provided at the central position of the lower end of the central shaft 201, the accommodating cavity 301 is located in the central hole 204, the water meter impeller further includes an impeller bushing 40, the impeller bushing 40 is disposed in the central hole 204, the adjusting channel 70 includes at least an extension groove 702 formed on the outer surface of the impeller bushing 40 and extending along the axial direction of the central hole 204, and the outer surface of the impeller bushing 40 is in sealing engagement with the inner surface of the central hole 204.
In a further implementation of the present embodiment, the extension grooves 702 are distributed in an annular array on the outer surface of the impeller sleeve 40 such that the impeller sleeve 40 takes the shape of an external gear.
The extension slots 702 are distributed in an annular array on the outer surface of the impeller sleeve 40 such that the impeller sleeve 40 is in the shape of an external gear that can allow water to pass evenly through the extension slots 702 and apply a uniform force on the piston assembly 60.
In the present embodiment, the impeller bearing 50 is mounted in the center mounting hole 401 of the impeller bush 40, and the impeller bearing 50 is a corundum bearing.
In a further implementation manner of this embodiment, the central hole 204 is a stepped hole, the stepped hole includes a first receiving hole 2041 and a second receiving hole 2042, the second receiving hole 2042 is close to the lower end of the middle shaft portion 201, the aperture of the first receiving hole 2041 is smaller than the aperture of the second receiving hole 2042, the impeller bushing 40 is mounted in the second receiving hole 2042, and the receiving cavity 301 is disposed in the first receiving hole 2041.
In a further implementation manner of this embodiment, the water meter impeller further includes a housing cylinder 30, a first end of the housing cylinder 30 is closed, a second end of the housing cylinder 30 is formed with an opening, a housing cavity 301 is formed inside the housing cylinder 30, the housing cylinder 30 is installed in the first housing hole 2041, and the opening faces the second housing hole 2042.
Specifically, the piston assembly 60 in the present embodiment is fitted into the accommodation chamber 301 of the accommodation cylinder 30 from the opening of the accommodation cylinder 30.
In a further implementation of this embodiment, the length of the first receiving hole 2041 is greater than the length of the receiving cylinder 30 such that the second end of the receiving cylinder 30 is located inside the first receiving hole 2041, and the adjustment channel 70 further includes a long groove 701 formed on an inner surface of the first receiving hole 2041, the long groove 701 extending from a position of the second end of the receiving cylinder 30 to a lower end surface of the first receiving hole 2041, and an outer surface of the receiving cylinder 30 being in sealing engagement with the inner surface of the first receiving hole 2041.
In a further implementation of this embodiment, the elongated grooves 701 are distributed in an annular array on the inner surface of the first receiving hole 2041 so as to form an internal tooth shape on the inner surface of the first receiving hole 2041.
The first accommodation hole 2041 and the second accommodation hole 2042 in the present embodiment constitute stepped holes, and extension grooves 702 are uniformly distributed on the circumferential surface of the impeller bush 40, and elongated grooves 701 are distributed on the inner surface of the first accommodation hole 2041, and the extension grooves 702 and the elongated grooves 701 constitute the adjustment passage 70, so that not only can the installation of the impeller bush 40 be realized, but also tap water can be uniformly introduced into the piston assembly 60, and the stress of the piston assembly 60 can be also made uniform, further improving the stability of the operation of the impeller of the water meter.
In a further implementation manner of the present embodiment, the gear portion 203 is formed at the top of the middle shaft portion 201, and a mounting hole 2031 is provided at the center of the gear portion, and the impeller shaft 10 is mounted in the mounting hole 2031.
Specifically, the inside wall in the mounting hole 2031 in the present embodiment is provided with a projection 2032, and the impeller shaft 10 is provided with a mounting notch 101, and the impeller shaft 10 and the mounting notch 101 cooperate so that the impeller shaft 10 is positioned in the mounting hole 2031.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (10)
1. A water meter impeller, comprising:
the impeller comprises an impeller body, a rotating shaft and a rotating shaft, wherein the impeller body is provided with a containing cavity, and the containing cavity is provided with an opening;
the piston assembly is movably arranged in the accommodating cavity, and is matched with the inner wall of the accommodating cavity in a sealing way, so that the accommodating cavity forms a sealing cavity, and the inside of the sealing cavity is filled with gas;
and the adjusting channel is formed on the impeller body, one end of the adjusting channel extends to the opening of the accommodating cavity, and the other end of the adjusting channel is communicated with a running water flowing channel, so that running water can flow through the adjusting channel to act on the piston assembly.
2. The water meter impeller of claim 1 wherein the impeller body includes a central shaft portion and impeller blades disposed in an annular array on the central shaft portion.
3. The water meter impeller of claim 1, wherein the piston assembly comprises a piston body and a seal ring, an annular groove is provided on an outer surface of the piston body, the seal ring is disposed in the annular groove, and the seal ring is in sealing contact with an inner wall of the receiving chamber.
4. The water meter impeller according to claim 2, wherein the lower end center position of the middle shaft portion is provided with a center hole, the accommodation chamber is located in the center hole, the water meter impeller further comprises an impeller bushing provided in the center hole, the adjustment passage includes at least an extension groove formed in an outer surface of the impeller bushing and extending in an axial direction of the center hole, and the outer surface of the impeller bushing is in sealing engagement with an inner surface of the center hole.
5. The water meter impeller of claim 4 wherein the elongated slots are distributed in an annular array on the outer surface of the impeller sleeve such that the impeller sleeve is in the shape of an external gear.
6. The water meter impeller of claim 5 wherein said central bore is a stepped bore, said stepped bore including a first receiving bore and a second receiving bore, said second receiving bore being proximate a lower end of said central shaft portion, said first receiving bore having a smaller bore diameter than said second receiving bore, said impeller bushing being mounted in said second receiving bore, said receiving cavity being disposed in said first receiving bore.
7. The water meter impeller of claim 6 further comprising a containment cylinder, a first end of the containment cylinder being closed, a second end of the containment cylinder being formed with the opening, the containment cavity being formed inside the containment cylinder, the containment cylinder being mounted in the first containment hole with the opening facing the second containment hole.
8. The water meter impeller of claim 7 wherein the length of the first receiving bore is greater than the length of the receiving cylinder such that the second end of the receiving cylinder is positioned within the first receiving bore, the adjustment channel further comprising an elongated slot formed in an inner surface of the first receiving bore, the elongated slot extending from a location of the second end of the receiving cylinder to a lower end surface of the first receiving bore, the outer surface of the receiving cylinder in sealing engagement with the inner surface of the first receiving bore.
9. The water meter impeller of claim 8 wherein the elongated slots are distributed in an annular array about the inner surface of the first receiving bore to form an internally toothed shape about the inner surface of the first receiving bore.
10. The water meter impeller of claim 4 wherein the impeller bushing is centrally located with a central mounting hole in which an impeller bearing is disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320523247.6U CN219608112U (en) | 2023-03-17 | 2023-03-17 | Water meter impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320523247.6U CN219608112U (en) | 2023-03-17 | 2023-03-17 | Water meter impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219608112U true CN219608112U (en) | 2023-08-29 |
Family
ID=87743578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320523247.6U Active CN219608112U (en) | 2023-03-17 | 2023-03-17 | Water meter impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219608112U (en) |
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2023
- 2023-03-17 CN CN202320523247.6U patent/CN219608112U/en active Active
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