Stainless steel water meter housing with flat inlet and outlet, featuring a stacked casting process with one inlet and four outlets.

Abstract

This utility model relates to the field of stainless steel water meter casing stacking technology, and discloses a stacking process structure for stainless steel water meter casings with a one-inlet-four-outlet planar water inlet and outlet, including a main gating system. A gating riser is fixedly connected to the top of the main gating system. Multiple branch gating systems are evenly distributed on both sides of the main gating system. A central flange annular opening is fixedly connected to the side of each branch gating system away from the main gating system. A concealed riser is fixedly connected to the top of the central flange annular opening. An inlet / outlet assembly is provided outside the central flange annular opening. The inlet / outlet assembly includes multiple water meter casing inlet pipes, one side of which is fixedly connected to one side of the central flange annular opening. In this utility model, the parallel stacking structure significantly improves cutting efficiency, reduces processing defects, lowers costs, and automatically disintegrates the sand shell after mold cooling, simplifying the casting separation process, improving production efficiency and product quality. Ultimately, the casting has high density and superior mechanical properties.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel water meter casing stacking technology, and in particular to the stacking process structure of stainless steel water meter casing with one inlet and four outlets on a flat surface. Background Technology

[0002] Stainless steel water meter housings are high-strength, highly corrosion-resistant water meter casings made of stainless steel, widely used in water supply systems, industrial metering, and other fields. Their advantages lie in their excellent oxidation and corrosion resistance, enabling them to withstand high humidity, high pressure, and complex water quality environments for extended periods.

[0003] The water meter casing design typically incorporates advanced casting processes, such as a flat inlet and four-layer casting technique, resulting in high molding precision, structural stability, and reduced casting defects. This product not only extends the water meter's service life but also reduces maintenance costs, making it an ideal choice for achieving efficient metering and stable operation.

[0004] Currently, the yield rate of one-outlet-four-layer stacked casting for thin-walled water meter casings is low, and the stacked casting process is prone to quality problems. Cutting, grinding, and finishing the finished product after casting is troublesome, and many structures are inconvenient to cut, resulting in high reprocessing costs. Therefore, a stacked casting process structure with one-inlet-four-layer stacked casting for the inlet and outlet of stainless steel water meter casings is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a stacked casting process structure with one inlet and four outlets on the plane of the stainless steel water meter housing, which aims to improve the quality problems that are prone to occur in the existing technology, such as the roughness caused by cutting, grinding and combing after the finished product is cast.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The stainless steel water meter casing has a flat inlet and outlet structure with a four-tiered pouring process, including a main pouring channel. A riser is fixedly connected to the top of the main pouring channel. Multiple branch pouring channels are evenly distributed on both sides of the main pouring channel. A middle flange annular opening is fixedly connected to the side of each branch pouring channel away from the main pouring channel. A concealed riser is fixedly connected to the top of the middle flange annular opening. An inlet and outlet assembly is provided outside the middle flange annular opening.

[0008] As a further description of the above technical solution:

[0009] The inlet / outlet assembly includes multiple water meter housing inlet ports. One side of each water meter housing inlet port is fixedly connected to one side of the annular opening of the middle flange, and the other side of the annular opening of the middle flange is fixedly connected to an outlet port. The bottom of the annular opening of the middle flange is symmetrically spaced parallel to the bottom in each layer. The connection surfaces of the multiple water meter housing inlet ports and the branch gating system are all located on the same side on a cutting plane perpendicular to the branch gating system. This cutting plane is parallel to the plane of the main gating system and the water meter housing inlet ports.

[0010] This utility model has the following beneficial effects:

[0011] In this invention, by optimizing the design of the main gating system, branch gating system, and hidden riser, smooth steel flow and uniform filling are achieved, avoiding shrinkage cavities and cracks. The parallel stacking structure significantly improves cutting efficiency, reduces processing defects, and lowers costs. After the mold cools, the sand shell automatically collapses, simplifying the casting separation process, improving production efficiency and product quality. Ultimately, the casting has high density and superior mechanical properties. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the stacked casting process structure of the stainless steel water meter housing with one inlet and four outlets on the plane, as proposed in this utility model.

[0013] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0014] Legend:

[0015] 1. Main runner; 2. Runner riser; 3. Branch runner; 4. Water meter housing inlet; 5. Middle flange ring port; 6. Concealed riser; 7. Water outlet. Detailed Implementation

[0016] 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.

[0017] Reference Figures 1 to 2This utility model provides an embodiment of a stainless steel water meter housing with a flat inlet and outlet four-tiered casting process structure, including a main gating channel 1. A gating riser 2 is fixedly connected to the top of the main gating channel 1. Molten steel is injected into the main gating channel 1 through the gating riser 2, which can effectively guide the molten steel into the entire casting system, making the molten steel evenly distributed and avoiding local overheating or insufficient cooling. Multiple branch gating channels 3 are evenly distributed on both sides of the main gating channel 1. The even distribution of multiple branch gating channels 3 can ensure that the molten steel is evenly stressed during the process of flowing from the main gating channel 1 into the branch gating channels 3, thereby improving the filling speed and smoothness and avoiding defects caused by poor flow.

[0018] A central flange annular opening 5 is fixedly connected to the side of the branch runner 3 away from the main runner 1. The central flange annular opening 5 is designed to effectively serve as a pouring connection point, helping to guide molten steel to fill the mold sand shell evenly, while providing balanced structural support for subsequent cooling. A hidden riser 6 is fixedly connected to the top of the central flange annular opening 5. The hidden riser 6 plays a feeding role during the filling process, preventing the central flange annular opening 5 from developing shrinkage cavities or cracks due to uneven cooling, thus ensuring the integrity and strength of the casting. An inlet and outlet assembly is set on the outside of the central flange annular opening 5. The inlet and outlet assembly is designed as a reasonable inlet and outlet water flow channel, providing precise water flow connection for subsequent product functions, while ensuring the convenience of cutting after mold forming.

[0019] The inlet and outlet components include multiple water meter housing inlet pipes 4. The uniform arrangement of the water meter housing inlet pipes 4 not only optimizes the flow path of molten steel but also improves the overall mold filling efficiency, allowing the molten steel to quickly fill the mold. One side of the water meter housing inlet pipe 4 is fixedly connected to one side of the middle flange annular opening 5. This connection method ensures that the molten steel can smoothly fill the mold after entering from the water meter housing inlet pipe 4, while maintaining the stability of the flow and reducing the risk of casting defects. The other side of the middle flange annular opening 5 is fixedly connected to the outlet pipe 7. The setting of the outlet pipe 7 ensures the smooth discharge of excess molten steel in the mold and provides a precise water outlet position in actual use. Furthermore, this parallel stacking structure ensures that the bottom of the annular port 5 of the middle flange is symmetrically spaced parallel to the bottom in each layer, which can reduce heat loss during steel pouring and reduce the overall footprint, making it more energy-efficient. At the same time, the connection surfaces of multiple water meter housing inlet pipes 4 and branch gating channels 3 are all located on the same side on a cutting plane perpendicular to the branch gating channel 3, making the cutting plane parallel to the plane of the main gating channel 1 and the water meter housing inlet pipe 4, which makes it easier to cut vertically on one side at once, greatly doubling the efficiency of finished product splitting and cutting.

[0020] Working principle: First, molten steel is injected into the system through the main gating 1 from the top gating riser 2. The molten steel quickly enters the main gating 1 through the gating riser 2 and is evenly distributed throughout the system. This process ensures smooth flow of molten steel and lays the foundation for subsequent filling. The design of the main gating 1 can balance the speed and pressure of molten steel flow and avoid casting defects caused by excessively fast or slow flow.

[0021] Next, the molten steel flows through the main gating 1 to multiple branch gating 3. The branch gating 3 are evenly distributed and form a stable flow distribution structure with the main gating 1. During this process, the branch gating 3 can distribute the molten steel to the annular opening 5 of the middle flange of each water meter shell mold without losing the flow rate. This stable flow path design effectively prevents the molten steel from generating turbulence during the filling process, thereby improving the filling efficiency and smoothness and ensuring the casting quality.

[0022] After the molten steel flows into the annular port 5 of the middle flange, the casting effect is further optimized through the hidden riser 6 on top of it. The hidden riser 6 provides a crystallization feeding function to prevent shrinkage cavities or cracks from occurring in the annular port 5 of the middle flange due to volume shrinkage during the cooling process. This feeding design significantly improves the density of the casting, making the final product more superior in mechanical properties and meeting the requirements of high-quality production.

[0023] Subsequently, molten steel flows into the mold from the water inlet 4 of the water meter shell, gradually filling the entire mold space, and the excess molten steel is discharged from the outlet 7 on the other side. During this process, the branch gating 3 and the layout of the water meter shell adopt a parallel stacking structure design to ensure that each water meter shell mold is on the same horizontal plane, so that the molten steel can be poured in a layer-by-layer manner from bottom to top. This design not only ensures the uniformity of filling, but also further optimizes the smoothness of the process.

[0024] After the casting is completed, the mold enters the cooling stage. The sand shell outside the mold absorbs the heat released by the molten steel and gradually dissipates, separating from the casting. At this time, the parallel structure design of the stacked casting not only ensures that the bottom of each water meter shell faces the same direction, but also greatly facilitates the subsequent cutting operation.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stainless steel water meter housing inlet and outlet plane inlet four outlet laminated casting process structure, comprising a main runner (1), characterized in that: The top of the main gating (1) is fixedly connected to a gating riser (2), and multiple branch gatings (3) are evenly distributed on both sides of the main gating (1). The side of the branch gating (3) away from the main gating (1) is fixedly connected to a middle flange annular opening (5), and the top of the middle flange annular opening (5) is fixedly connected to a concealed riser (6). An inlet / outlet assembly is provided on the outside of the middle flange annular opening (5).

2. The stacked casting process structure of the stainless steel water meter housing with one inlet and four outlets on the same plane as described in claim 1, characterized in that: The inlet and outlet assembly includes multiple water meter housing inlet ports (4), one side of the water meter housing inlet port (4) is fixedly connected to one side of the middle flange annular port (5), and the other side of the middle flange annular port (5) is fixedly connected to an outlet port (7).

3. The stacked casting process structure of the stainless steel water meter housing with one inlet and four outlets on the same plane as described in claim 1, characterized in that: The bottom of the annular opening (5) of the middle flange is symmetrically spaced parallel to each other in each layer.

4. The stacked casting process structure of the stainless steel water meter housing with one inlet and four outlets on the plane according to claim 2, characterized in that: The connection surfaces of the multiple water meter housing inlet ports (4) and the branch gating channel (3) are all located on the same side on a cutting plane perpendicular to the branch gating channel (3), and the cutting plane is parallel to the plane of the main gating channel (1) and the water meter housing inlet ports (4).

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