Vertical spiral water inlet vertical water meter shell

Abstract

The utility model provides a vertical spiral water inlet vertical water meter shell which comprises a metering cavity, a horizontal cavity and a vertical cavity, the two ends of the horizontal cavity are fixedly connected with the metering cavity and the vertical cavity respectively, and a water inlet cavity and a water outlet cavity in the metering cavity are provided with a water inlet and a water outlet respectively. A lower water inlet channel and an upper water outlet channel are arranged in the horizontal cavity; the top of the vertical cavity is a water inlet end, the bottom of the vertical cavity is a water outlet end, and a flow deflector is arranged in the vertical cavity and divides the interior of the vertical cavity into a water inlet runner and a water outlet runner; the water inlet end, the water inlet runner, the water inlet channel, the water inlet and the water inlet cavity are sequentially communicated, and the water outlet cavity, the water outlet, the water outlet channel, the water outlet runner and the water outlet end are sequentially communicated. According to the vertical water meter, the spiral flow deflector is arranged in the vertical cavity, so that inlet water at the upper part enters the metering cavity from the water inlet at the lower part after being transferred, the water inlet function of the vertical water meter is realized under the condition that a movement is not changed, and the pressure loss is relatively small.

Description

Technical Field

[0001] The utility model relates to the field of vertical water meters, in particular to a vertical spiral top-inlet vertical water meter case. Background Art

[0002] Currently, the water flow direction of vertical water meters in China is generally bottom-in, top-out, with the water inlet at the bottom and the water outlet at the top. This is determined by the structural characteristics of the water meter movement: water enters from the bottom of the movement, driving the impeller to rotate, and then flows out from the top. With the development and advancement of water supply and heating technologies, some users are demanding top-in, bottom-out vertical water meters or heat meters. To address this problem, some water meter manufacturers have used the existing bottom-in, top-out housing and installed an improved movement to create a top-in, bottom-out water meter, such as the CN206362387U vertical top-inlet water meter. However, field measurements have shown that such meters suffer from high pressure drop, low sensitivity, and large errors at low flow rates. Furthermore, the use of a new movement significantly increases production costs, making them less practical. Utility Model Content

[0003] (1) Technical issues to be resolved

[0004] The purpose of this utility model is to provide a vertical spiral water meter case with top water inlet, which can realize the top water inlet function of the vertical water meter without changing the movement, greatly reducing the production cost. To achieve the above purpose, this utility model adopts the following technical solutions:

[0005] (2) Technical solution

[0006] The case of a vertical spiral water meter with upper water inlet comprises a metering cavity, a horizontal cavity and a vertical cavity. The two ends of the horizontal cavity are fixedly connected to the metering cavity and the vertical cavity respectively. An inner ring is provided inside the metering cavity. The inner ring divides the inside of the metering cavity into a water inlet chamber below and a water outlet chamber above. The water inlet chamber and the water outlet chamber are respectively provided with a water inlet and a water outlet near the horizontal cavity, and the horizontal cavity wraps the water inlet and the water outlet; a water dividing plate is provided in the horizontal cavity. The water dividing plate is located at Between the water inlet and the water outlet, the interior of the horizontal cavity is divided into a water inlet channel at the bottom and a water outlet channel at the top; the top of the vertical cavity is the water inlet end and the bottom is the water outlet end, and a guide plate is provided therein, which consists of a spiral plate and baffles at both ends of the spiral plate, and the guide plate divides the interior of the vertical cavity into a water inlet channel and a water outlet channel; the water inlet end, water inlet channel, water inlet, and water inlet chamber are connected in sequence, and the water outlet chamber, water outlet, water outlet channel, water outlet channel, and water outlet end are connected in sequence.

[0007] Furthermore, the number of twists of the spiral piece is one.

[0008] Furthermore, the pitch of the spiral blade is greater than the height of the water inlet channel and the water outlet channel.

[0009] Furthermore, the two sides of the spiral blade are fixed to the inner wall of the vertical cavity, and its two ends are fixedly connected to the two baffles respectively. The two baffles are fixed on the inner wall of the vertical cavity and respectively close one end of the water inlet channel close to the water outlet end and one end of the water outlet channel close to the water inlet end.

[0010] (3) Beneficial effects

[0011] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, by arranging a spiral guide vane in the vertical cavity, the water inlet from the top is transferred and then enters the metering cavity from the water inlet below, thereby realizing the upper water inlet function of the vertical water meter without changing the movement; and the reversal of the water flow in the vertical cavity is completed by the spiral vane, and the pressure loss is small; at the same time, the overall structure is simple, and only simple machining and welding are required to complete the production and assembly, without the need for complicated casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a cross-sectional view of the vertical cavity of the utility model in the left view;

[0015] Figure 3 It is a cross-sectional view of the main view of the utility model;

[0016] Figure 4 It is a three-dimensional cross-sectional view of the utility model;

[0017] Figure 5 Schematic diagram of the appearance structure of the guide plate.

[0018] Description of Figure Numbers:

[0019] 1. Metering cavity; 11. Inner ring; 12. Water inlet chamber;

[0020] 13. Water outlet chamber; 14. Water outlet; 15. Water inlet;

[0021] 2. Horizontal cavity; 21. Water distribution plate 22. Water inlet channel;

[0022] 23. Water outlet; 3. Vertical cavity; 31. Water inlet;

[0023] 32. Water outlet; 33. Water inlet channel; 34. Water outlet channel;

[0024] 4. Guide vane; 41. Spiral vane; 42. Baffle. DETAILED DESCRIPTION

[0025] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0028] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] See also Figures 1 to 5As shown, the case of a vertical spiral upper water inlet vertical water meter includes a metering cavity 1, a horizontal cavity 2 and a vertical cavity 3. The two ends of the horizontal cavity 2 are fixedly connected to the metering cavity 1 and the vertical cavity 3 respectively. An inner ring 11 is provided inside the metering cavity 1. The inner ring 11 divides the interior of the metering cavity 1 into a water inlet chamber 12 at the bottom and a water outlet chamber 13 at the top. The water inlet chamber 12 and the water outlet chamber 13 are respectively provided with a water inlet 15 and a water outlet 14 near the horizontal cavity 2, and the horizontal cavity 2 wraps the water inlet 15 and the water outlet 14; a water dividing plate 21 is provided in the horizontal cavity 2. The water dividing plate 21 is located between the water inlet 15 and the water outlet 14 and divides the interior of the horizontal cavity 2 into a water inlet channel 22 at the bottom and a water outlet channel 23 at the top;

[0031] The top of the vertical cavity 3 is the water inlet end 31, and the bottom is the water outlet end 32. A guide plate 4 is provided therein, which is composed of a spiral plate 41 and baffles 42 at both ends of the spiral plate 41. The guide plate 4 divides the interior of the vertical cavity 3 into a water inlet channel 33 and a water outlet channel 34; the water inlet end 31, the water inlet channel 33, the water inlet channel 22, the water inlet 15, and the water inlet chamber 12 are connected in sequence, and the water outlet chamber 13, the water outlet 14, the water outlet channel 23, the water outlet channel 34, and the water outlet end 32 are connected in sequence.

[0032] Through the above technical solution, water flows into the water inlet end 31 of the vertical cavity 3 from above, and then flows into the water inlet channel through the water inlet channel 33 under the guidance of the guide plate 4, and then enters the water inlet chamber 12 from the water inlet 15, passes through the movement (not shown in the figure) and enters the water outlet chamber 13, and then flows out along the water outlet 14, the water outlet channel 23, the water outlet channel 34, and the water outlet end 32 in sequence, thereby realizing the upper water inlet function of the vertical water meter without changing the movement; and the reversal of the water flow in the vertical cavity 3 is completed by the spiral plate 41, and the pressure loss is small; at the same time, the overall structure is simple, and only simple machining and welding are required to complete the production and assembly, without the need for complicated casting.

[0033] It is worth mentioning that the spiral blade 41 is twisted one turn to avoid too many turns which may increase the pressure loss and make the flow channel too small, while too few turns may lead to incomplete sealing of the flow channel.

[0034] It should be noted that the pitch of the spiral blade 41 is greater than the height of the water inlet channel 22 and the water outlet channel 23, so that the water inlet channel 31 and the water outlet channel 34 can wrap the water inlet channel 22 and the water outlet channel 23 to ensure smooth water flow.

[0035] It is understandable that if Figure 4 and Figure 5To facilitate processing, the guide plate 4 is composed of a spiral plate 41 and baffles 42 at both ends of the spiral plate 41. The spiral plate 41 is fixed on both sides to the inner wall of the vertical cavity 3, and its two ends are fixedly connected to the two baffles 42. The two baffles 42 are fixed on the inner wall of the vertical cavity 3 and respectively close the end of the water inlet channel 33 close to the water outlet end 32 and the end of the water outlet channel 34 close to the water inlet end 31;

[0036] Through the above solution, the spiral blade 41 can be machined and then welded to the baffle 42 to reduce the difficulty of machining the guide blade 4 .

[0037] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A vertical spiral water meter case with an upper water inlet, comprising a metering cavity (1), a horizontal cavity (2) and a vertical cavity (3), wherein the two ends of the horizontal cavity (2) are fixedly connected to the metering cavity (1) and the vertical cavity (3), respectively; an inner ring (11) is provided inside the metering cavity (1), and the inner ring (11) divides the inside of the metering cavity (1) into a water inlet chamber (12) at the bottom and a water outlet chamber (13) at the top; the water inlet chamber (12) and the water outlet chamber (13) are respectively provided with a water inlet (15) and a water outlet (14) at positions close to the horizontal cavity (2), and the horizontal cavity (2) wraps the water inlet (15) and the water outlet (14); characterized in that: A water dividing plate (21) is provided in the horizontal cavity (2), and the water dividing plate (21) is located between the water inlet (15) and the water outlet (14) and divides the interior of the horizontal cavity (2) into a water inlet channel (22) at the bottom and a water outlet channel (23) at the top; the vertical cavity (3) has a water inlet end (31) at the top and a water outlet end (32) at the bottom, and a guide plate (4) is provided therein, and the guide plate (4) is composed of a spiral plate (41) and the spiral plate ( The vertical cavity (3) is composed of baffles (42) at both ends of the vertical cavity (41), and the guide plate (4) divides the interior of the vertical cavity (3) into a water inlet channel (33) and a water outlet channel (34); the water inlet end (31), the water inlet channel (33), the water inlet channel (22), the water inlet (15), and the water inlet chamber (12) are connected in sequence, and the water outlet chamber (13), the water outlet (14), the water outlet channel (23), the water outlet channel (34), and the water outlet end (32) are connected in sequence.

2. The vertical spiral top-inlet vertical water meter case according to claim 1, characterized in that: The number of twisting turns of the spiral piece (41) is one turn.

3. The vertical spiral top-inlet vertical water meter case according to claim 1, characterized in that: The pitch of the spiral blade (41) is greater than the height of the water inlet channel (22) and the water outlet channel (23).

4. The vertical spiral top-inlet vertical water meter case according to claim 1, characterized in that: Both sides of the spiral blade (41) are fixed to the inner wall of the vertical cavity (3), and its two ends are respectively fixedly connected to the two baffles (42). The two baffles (42) are fixed to the inner wall of the vertical cavity (3) and respectively close one end of the water inlet channel (33) close to the water outlet end (32) and one end of the water outlet channel (34) close to the water inlet end (31).

Images