Novel pump cover

Abstract

The utility model provides a novel pump cover, and belongs to the technical field of pump body accessories. The problem that an existing pump cover is poor in inflow water filtering effect is solved. The novel pump cover comprises a pump cover body provided with a water inlet pipeline, a water outlet pipeline and a cavity, the pump cover body comprises an outer shell and an inner shell connected with the outer shell, the end face, located on the inner shell, of the outer shell is provided with a protruding ring part which protrudes outwards in the axial direction and is used for protecting the inner shell, and a liquid passing cavity is reserved between the protruding ring part and the inner shell. The water inlet pipeline is arranged on the convex ring part and communicated with the liquid passing cavity, a first filtering unit which is connected with the water inlet pipeline and has a filtering function is arranged in the water inlet pipeline, the water outlet pipeline is arranged on the inner shell and communicated with the cavity, and a communicating flow channel enabling the cavity to be communicated with the liquid passing cavity is formed in the outer wall of the inner shell. And a filtering unit II which is connected with the inner shell and is also used for filtering impurities is arranged on the outer peripheral wall, positioned at the communicating flow channel, of the inner shell. The filtering device has the advantage of good filtering effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of pump body accessories, and relates to a novel pump cover. Background Technology

[0002] The main function of a pump cover is to seal the pump body and protect it for normal operation. Pump covers are usually equipped with appropriate channels for fluid inlet and outlet. In actual use, the inlet on the pump cover is usually directly connected to the pipeline without a filter structure. This may cause some impurities to be transported into the pump body with the fluid, which can damage the internal structure of the pump and affect its service life. At the same time, the inlet and outlet on the pump cover are usually a single structure, which may not meet the needs of special working environments and thus fail to meet the usage requirements. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the prior art by providing a pump cover that can filter fluids and has multiple inlets and outlets.

[0004] The objective of this utility model can be achieved through the following technical solution: A novel pump cover, comprising a pump cover body with an inlet pipe, an outlet pipe, and a chamber, characterized in that the pump cover body comprises an outer shell and an inner shell connected to the outer shell, the outer shell and the inner shell being coaxially arranged, the end face of the outer shell located at the inner shell being provided with an axially outward protruding convex ring portion for protecting the inner shell, a liquid passage cavity being left between the convex ring portion and the inner shell, the inlet pipe being provided on the convex ring portion and communicating with the liquid passage cavity, a filter unit one connected to and having a filtering function being provided in the inlet pipe, the outlet pipe being provided on the inner shell and communicating with the chamber, the outer end of the outlet pipe extending axially outward and extending through the convex ring portion, and extending to the outer edge of the outer shell, a connecting flow channel being opened on the outer wall of the inner shell to connect the chamber and the liquid passage cavity, a filter unit two connected to and also used for filtering impurities being provided on the outer peripheral wall of the inner shell located at the connecting flow channel.

[0005] In the aforementioned novel pump cover, a flange portion is provided on the outer peripheral wall of the convex ring portion for connection with and for easy connection with the pump body, and a recessed groove is provided on the end face of the convex ring portion.

[0006] In the aforementioned novel pump cover, the filter unit is a filter cylinder, the outer wall of which is slidably fitted with the inner wall of the water inlet pipe, and the flow channel of the water inlet pipe is arranged in a stepped structure.

[0007] In the aforementioned novel pump cover, the second filter unit is a filter cover connected to the inner shell.

[0008] In the aforementioned novel pump cover, the number of inlet pipes is at least two, and the number of outlet pipes is also at least two.

[0009] Compared with existing technologies, this new pump cover can perform multiple filtrations of impurities by setting up filter unit one and filter unit two. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the new pump cover.

[0011] In the diagram, 1 is the inlet pipe; 2 is the outlet pipe; 3 is the outer shell; 4 is the inner shell; 5 is the convex ring; 6 is the flange; 7 is the filter cartridge; and 8 is the filter cover. Detailed Implementation

[0012] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0013] like Figure 1 As shown, this novel pump cover includes a main body with an inlet pipe 1, an outlet pipe 2, and a chamber. The main body includes an outer shell 3 and an inner shell 4 connected to the outer shell 3, and the outer shell 3 and the inner shell 4 are coaxially arranged. An axially outwardly protruding ring 5 is provided on the end face of the outer shell 3 at the inner shell 4, which protects the inner shell 4 and is connected to the pump body. The inner diameter of the ring 5 is larger than the outer diameter of the inner shell 4, and a liquid-passing cavity is left between the ring 5 and the inner shell 4. This liquid-passing cavity forms a sealed cavity after being connected to the pump body. The inlet pipe 1 is provided on the ring 5 and communicates with the liquid-passing cavity. A connecting element is provided inside the inlet pipe 1. A filter unit 1 that is connected and has a filtering function is provided. The water outlet pipe 2 is provided on the inner shell 4 and is connected to the chamber. The outer end of the water outlet pipe 2 extends outward axially and extends through the protruding ring 5 and extends to the outer edge of the outer shell 3. A connecting flow channel is provided on the outer wall of the inner shell 4 to connect the chamber and the liquid passage. A filter unit 2 that is connected to the outer peripheral wall of the inner shell 4 at the connecting flow channel and is also used to filter impurities is provided. The filter unit 1 is a filter cylinder 7. The outer wall of the filter cylinder 7 is slidably attached to the inner wall of the water inlet pipe 1. The flow channel of the water inlet pipe 1 is arranged in a stepped structure. The filter unit 2 is a filter cover 8 that is connected to the inner shell 4.

[0014] To elaborate further, in order to facilitate subsequent assembly and connection, a flange 6 is provided on the outer peripheral wall of the convex ring 5 to connect with it and facilitate connection with the pump body, and a recessed groove is provided on the end face of the convex ring 5.

[0015] As a preferred structure, the number of water inlet pipes 1 is at least two, and the number of water outlet pipes 2 is also at least two.

[0016] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0017] Although this document uses terms such as "etc." extensively, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A novel pump cover, comprising a pump cover body with an inlet pipe (1), an outlet pipe (2), and a chamber, characterized in that, The pump cover body includes an outer shell (3) and an inner shell (4) connected to the outer shell (3), and the outer shell (3) and the inner shell (4) are coaxially arranged. The end face of the outer shell (3) located at the inner shell (4) is provided with an axially outward protruding convex ring (5) for protecting the inner shell (4). A liquid passage cavity is left between the convex ring (5) and the inner shell (4). The water inlet pipe (1) is provided on the convex ring (5) and connected to the liquid passage cavity. The water inlet pipe (1) is provided with There is a filter unit 1 connected to it and having a filtering function. The above-mentioned water outlet pipe (2) is set on the inner shell (4) and connected to the chamber. The outer end of the water outlet pipe (2) extends outward axially and extends through the protruding ring (5) and extends to the outer edge of the outer shell (3). A connecting flow channel is opened on the outer wall of the inner shell (4) to connect the chamber and the liquid passage. A filter unit 2 connected to it and also used to filter impurities is set on the outer peripheral wall of the inner shell (4) at the connecting flow channel.

2. The novel pump cover according to claim 1, characterized in that, The outer peripheral wall of the convex ring (5) is provided with a flange (6) that is connected to it and facilitates connection with the pump body, and a recessed groove is provided on the end face of the convex ring (5).

3. The novel pump cover according to claim 1, characterized in that, The filter unit is a filter cylinder (7). The outer wall of the filter cylinder (7) is slidably attached to the inner wall of the water inlet pipe (1). The flow channel of the water inlet pipe (1) is arranged in a stepped structure.

4. A novel pump cover according to claim 1, characterized in that, The second filter unit is a filter cover (8) connected to the inner shell (4).

5. A novel pump cover according to claim 1, characterized in that, The number of water inlet pipes (1) is at least two, and the number of water outlet pipes (2) is also at least two.

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