Water meter shell capable of being provided with check valve and water meter

Abstract

A meter shell body is formed by stainless steel in a stamping mode, after the meter shell body is formed in a stamping mode, an installation base and a partition plate are fixed mutually, and then the installation base and the partition plate which are fixed are assembled in a water outlet pipe together. Therefore, the water meter shell does not need to use a casting process, the problems that a complex casting is high in defect rate and unstable in quality during casting are solved, and the problems that the water meter shell formed through casting is prone to rusting, sand holes and the like during use can also be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water meters, in particular to a water meter housing and a water meter capable of installing a check valve. Background Art

[0002] At present, the water meter housing is generally cast. For the water meter housing that needs to install a check valve, when casting, the valve seat of the check valve needs to be integrally cast in the water meter housing, which makes the structure of the casting relatively complex. Such a casting with a complex structure is prone to high defect rates and unstable quality during casting, and the cast water meter housing is also prone to problems such as rust and sand holes during use, thus affecting the normal use of the water meter housing. Summary of the Utility Model

[0003] This application provides a water meter housing and a water meter capable of installing a check valve. The main body of the meter housing is formed by stamping, and after the main body of the meter housing is stamped, the valve seat of the check valve is assembled into the main body of the meter housing, which can avoid the problems of high defect rates and unstable quality existing in the casting of complex castings, and can also avoid problems such as rust and sand holes that are prone to occur in the cast water meter housing during use.

[0004] The water meter housing capable of installing a check valve provided by this application includes:

[0005] A stamped main body of the meter housing, including an intermediate housing and a water outlet pipe. The water outlet pipe is connected to the intermediate housing, and an opening is provided on the wall of the water outlet pipe;

[0006] A mounting seat, arranged on the opening, at least part of the mounting seat extends into the water outlet pipe, and a swing check valve is installed in the mounting seat; and

[0007] A partition plate, arranged in the water outlet pipe and hermetically connected to the mounting seat and the inner wall of the water outlet pipe respectively. A through hole for the water flow in the water outlet pipe to flow through is provided on the partition plate;

[0008] When the water flow in the water outlet pipe flows forward, the check valve can be opened by the impact of the water flow to open the through hole; when the water flow in the water outlet pipe flows reversely, the check valve can cover the through hole to close the through hole.

[0009] Preferably, the outer wall of the mounting seat is fixedly welded to the periphery of the opening.

[0010] Preferably, a sealing plate is arranged at one end of the mounting seat located in the water outlet pipe. The first surface of the partition plate is used to contact the check valve, and the sealing plate is used to seal the gap between the second surface of the partition plate and the periphery of the mounting seat.

[0011] Preferably, the sealing plate is fixedly welded to the mounting seat.

[0012] Preferably, the first surface of the partition is used to contact the check valve, and an annular protrusion is provided on the first surface of the partition, and the through hole is located within the annular protrusion.

[0013] Preferably, the axis of the mounting seat is perpendicular to the axis of the water outlet pipe.

[0014] Preferably, the watch case body further includes a water inlet pipe, the intermediate housing includes a first intermediate housing and a second intermediate housing which are symmetrically arranged, the water outlet pipe includes a first water outlet pipe and a second water outlet pipe which are symmetrically arranged, the water inlet pipe includes a first water inlet pipe and a second water inlet pipe which are symmetrically arranged, the first water inlet pipe, the first intermediate housing and the first water outlet pipe are integrally formed into a first half shell, the second water inlet pipe, the second intermediate housing and the second water outlet pipe are integrally formed into a second half shell, and the first half shell and the second half shell are arranged in an opposing manner and sealed by welding.

[0015] Preferably, a first notch is provided on the first water outlet pipe, a second notch is provided on the second water outlet pipe, and the first notch and the second notch are arranged in an opposing manner to form an opening.

[0016] Preferably, the mounting seat is composed of two workpieces with a semi-circular ring cross-section, the two workpieces are fixed in an opposing manner, and a rotating seat for mounting the rotating shaft of the check valve is provided on the inner wall of each workpiece.

[0017] The water meter provided by the present application includes the water meter housing described above.

[0018] One or more technical solutions provided in the present application have at least the following technical effects or advantages:

[0019] In the present application, the watch case body is formed by stamping stainless steel. After the watch case body is stamped, the mounting seat and the partition are first fixed to each other, and then the fixed mounting seat and partition are assembled together into the water outlet pipe. Thus, the water meter housing of the present application does not require the use of a casting process, thereby avoiding the problems of high defect rate and unstable quality existing in complex castings during casting, and also avoiding problems such as rusting and sand holes that are likely to occur in the cast water meter housing during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2is a cross-sectional view of the present utility model;

[0023] Figure 3 is a partial exploded view of the present utility model;

[0024] Figure 4 is an exploded view of the present utility model;

[0025] Figure 5 is a combined view of the mounting seat and the partition;

[0026] Figure 6 is a combined view of the mounting seat and the partition from another perspective. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned accompanying drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or server including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or modules that are not clearly listed or are inherent to these processes, methods, products, or devices.

[0029] As Figures 1 to 6 shown, the water meter housing capable of installing a check valve in this embodiment includes a housing main body formed by stamping stainless steel, a mounting seat 30, and a partition 40. The housing main body includes an intermediate housing 10, a water outlet pipe 20, and a water inlet pipe 50.

[0030] An inner cavity for installing a water meter core is provided in the intermediate housing 10. The water outlet pipe 20 and the water inlet pipe 50 are respectively connected to both sides of the intermediate housing 10. The water outlet pipe 20 and the water inlet pipe 50 are both communicated with the inner cavity of the intermediate housing 10. An opening 21 is provided on the wall of the water outlet pipe 20.

[0031] The watch case body further includes a water inlet pipe 50. The middle case 10 includes a symmetrically arranged first middle case 101 and a second middle case 102. The water outlet pipe 20 includes a symmetrically arranged first water outlet pipe 201 and a second water outlet pipe 202. The water inlet pipe 50 includes a symmetrically arranged first water inlet pipe 501 and a second water inlet pipe 502. The first water inlet pipe 501, the first middle case 101, and the first water outlet pipe 201 are integrally formed into a first half case, and the second water inlet pipe 502, the second middle case 102, and the second water outlet pipe 202 are integrally formed into a second half case. The first half case and the second half case are arranged in an opposing manner and sealed by welding. Both the first half case and the second half case are formed by a single stamping of a stainless steel plate, and then the first half case and the second half case are opposed and welded and fixed to form the watch case body.

[0032] A first notch 2011 is provided on the first water outlet pipe 201, and a second notch 2021 is provided on the second water outlet pipe 202. The first notch 2011 and the second notch 2021 are arranged in an opposing manner to form an opening 21. In this way, when the first half case and the second half case are stamped and formed, the first notch 2011 and the second notch 2021 are processed and formed. Then, after the first half case and the second half case are opposed and welded and fixed, the opening 21 can be processed and formed, making the processing of the opening 21 relatively convenient.

[0033] The mounting seat 30 is composed of two workpieces 32 with a semi-circular ring cross-section. The two workpieces 32 are opposed and fixed and welded. A rotating seat 321 for mounting the rotating shaft of the check valve is provided on the inner wall of each workpiece 32. In this way, when the workpiece 32 is processed, the rotating seat 321 on the workpiece 32 can be processed and formed simultaneously, facilitating the processing of the mounting seat 30.

[0034] The mounting seat 30 is arranged on the opening 21, and the mounting seat 30 extends at least partially into the water outlet pipe 20 through the opening 21. A swing check valve is installed in the mounting seat 30, and the rotating shaft of the check valve is rotatably installed on the two rotating seats 321 so that the check valve can rotate.

[0035] A partition 40 is arranged in the water outlet pipe 20 and is hermetically connected to the inner wall of the mounting seat 30 and the water outlet pipe 20 respectively, so that the partition 40 blocks the water flow in the water outlet pipe 20. A through hole 41 for the water flow in the water outlet pipe 20 to flow through is provided on the partition 40. In this way, the water flow in the water outlet pipe 20 can only flow through the partition 40 through the through hole 41.

[0036] The outer wall of the mounting seat 30 is welded and fixed to the periphery of the opening 21, so that the seal between the mounting seat 30 and the periphery of the opening 21 is tight and the connection is firm.

[0037] One end of the mounting base 30 located inside the water outlet pipe 20 is fixedly welded with a sealing plate 31. The first surface of the partition plate 40 is used to contact the check valve, and the sealing plate 31 is used to seal the gap between the second surface of the partition plate 40 and the peripheral edge of the mounting base 30. In this way, there is no gap between the second surface of the partition plate 40 and the mounting base 30. When the water flow in the water outlet pipe 20 reversely flows back, the water flow cannot flow back through the gap between the second surface of the partition plate 40 and the mounting base 30.

[0038] The first surface of the partition plate 40 is used to contact the check valve. An annular protrusion 42 is provided on the first surface of the partition plate 40. The through hole 41 is located inside the annular protrusion 42, and the inner wall of the annular protrusion 42 is flush with the peripheral edge of the through hole 41. In this way, when the check valve covers the first surface of the partition plate 40, the partition plate 40 contacts the annular protrusion 42, and the contact between the partition plate 40 and the annular protrusion 42 is tight, so that the sealing effect of the partition plate 40 on the through hole 41 is better.

[0039] The axis of the mounting base 30 is perpendicular to the axis of the water outlet pipe 20.

[0040] The water meter of this embodiment includes a water meter housing, a water meter core and a swing check valve. The water meter core is installed in the inner cavity of the middle housing 10, and the check valve is installed in the mounting base 30. The rotating shaft of the check valve is rotatably installed on two rotating seats 321, so that the check valve can rotate to close or open the through hole 41. When the water flow in the water outlet pipe 20 flows forward, the check valve can be opened by the impact of the water flow; when the water flow in the water outlet pipe 20 reversely flows back, the check valve can cover the through hole 41 to close the through hole 41.

[0041] It should be noted that the above-mentioned sequence of the embodiments of the present application is only for description and does not represent the superiority or inferiority of the embodiments. And the above description of specific embodiments of this specification is made. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be executed in a different order from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0042] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0043] This specification and the drawings are merely exemplary illustrations of the present application and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application and its equivalent technologies, the present application is intended to include these changes and modifications.

Claims

1. A water meter housing capable of being installed with a check valve, characterized in that: include: A stamped watch case body comprises an intermediate housing (10) and a water outlet pipe (20), wherein the water outlet pipe (20) is connected to the intermediate housing (10), and an opening (21) is provided on the wall of the water outlet pipe (20); A mounting seat (30) is arranged on the opening (21), the mounting seat (30) at least partially extends into the water outlet pipe (20), and a swing check valve is installed in the mounting seat (30); and A partition (40) is disposed in the water outlet pipe (20) and is respectively sealed and connected to the mounting seat (30) and the inner wall of the water outlet pipe (20); the partition (40) is provided with a through hole (41) for the water flow in the water outlet pipe (20) to flow through; When the water in the water outlet pipe (20) flows forward, the check valve can be impacted by the water flow to open the through hole (41); when the water in the water outlet pipe (20) flows reversely, the check valve can cover the through hole (41) to close the through hole (41).

2. The water meter housing according to claim 1, characterized in that: The outer wall of the mounting seat (30) is fixed to the periphery of the opening (21) by welding.

3. The water meter housing according to claim 1, characterized in that: A sealing plate (31) is provided at one end of the mounting seat (30) located in the water outlet pipe (20); a first surface of the partition plate (40) is used to contact the check valve; and the sealing plate (31) is used to seal the gap between the second surface of the partition plate (40) and the peripheral edge of the mounting seat (30).

4. The water meter housing according to claim 3, characterized in that: The sealing plate (31) is fixed to the mounting seat (30) by welding.

5. The water meter housing according to claim 1, characterized in that: The first surface of the partition (40) is used to contact the check valve. An annular protrusion (42) is provided on the first surface of the partition (40), and the through hole (41) is located in the annular protrusion (42).

6. The water meter housing according to claim 1, characterized in that: The axis of the mounting seat (30) is perpendicular to the axis of the water outlet pipe (20).

7. The water meter housing according to claim 1, characterized in that: The watch case body further comprises a water inlet pipe (50); the intermediate shell (10) comprises a first intermediate shell (101) and a second intermediate shell (102) which are symmetrically arranged; the water outlet pipe (20) comprises a first water outlet pipe (201) and a second water outlet pipe (202) which are symmetrically arranged; the water inlet pipe (50) comprises a first water inlet pipe (501) and a second water inlet pipe (502) which are symmetrically arranged; the first water inlet pipe (501), the first intermediate shell (101) and the first water outlet pipe (201) are integrally formed to form a first half shell; the second water inlet pipe (502), the second intermediate shell (102) and the second water outlet pipe (202) are integrally formed to form a second half shell; the first half shell and the second half shell are arranged in abutment with each other and are sealed and welded.

8. The water meter housing according to claim 7, characterized in that: The first water outlet pipe (201) is provided with a first notch (2011), the second water outlet pipe (202) is provided with a second notch (2021), and the first notch (2011) and the second notch (2021) are arranged in a matched manner to form an opening (21).

9. The water meter housing according to claim 1, characterized in that: The mounting seat (30) is composed of two workpieces (32) with semicircular cross sections. The two workpieces (32) are matched and fixed, and a rotating seat (321) for mounting a rotating shaft of a check valve is provided on the inner wall of each workpiece (32).

10. A water meter, characterized in that: It comprises a water meter housing as described in any one of claims 1 to 9.

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