A mouth ring seal and well submersible pump
By designing the flange of the annular gasket body to be embedded in the impeller sleeve, the problem of excessive height of multi-stage deep well pumps caused by the sealing gasket is solved, realizing convenient transportation and installation of the product, and improving reliability and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAICHENG SANYU PUMP IND CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-23
AI Technical Summary
The existing gasket design of multi-stage deep well pumps results in excessive product height, increasing transportation difficulty and cost, and making them prone to bending and deformation, affecting reliability and service life.
Design an annular gasket body with its outer circumferential edge flipped downward to form a flange that is embedded in the impeller sleeve. The gasket is installed by fixing it with the flange, reducing the height of the single stage and the overall structure.
It effectively reduces the height of single-stage and multi-stage submersible pumps for wells, improves transportation and installation efficiency, and enhances product reliability and service life.
Smart Images
Figure CN224396743U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of submersible pump technology, specifically to a mouth ring sealing gasket and a well submersible pump. Background Technology
[0002] In the field of submersible pump design, refined design has become the mainstream concept. Without affecting the normal use of the product, it achieves multiple goals such as saving materials, reducing weight, and shrinking size, thereby improving the practicality and convenience of the product and better meeting customer needs.
[0003] like Figure 1 and Figure 2 The existing sealing gasket and submersible pump using the sealing gasket shown in the diagram have a flat gasket structure for the impeller ring seal. To ensure the impeller ring seal is securely fixed, it must be embedded inside the impeller sleeve during manufacturing. This method requires more material for the impeller sleeve, increasing manufacturing costs and weight. Furthermore, since the distance between the impeller ring seal and the impeller ring is fixed, the length of the impeller ring is correspondingly increased.
[0004] For multi-stage deep well pumps, the overall height primarily depends on the number of stages and the height of each stage. When the height of each stage is high, and there are many stages, the overall height of the product becomes very large. This not only causes significant inconvenience during transportation, increasing transport costs and difficulty, but also makes operation during well deployment challenging. Excessively tall products are prone to bending and deformation during transportation or well installation, thus reducing product reliability. Bending can affect the internal mechanical structure and sealing performance, leading to problems such as leakage, reduced efficiency, and even shortening the product's lifespan. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a mouth ring sealing gasket and a submersible pump for wells, which solves the problem of excessive product height caused by the use of gaskets in existing multi-stage deep well pumps.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a mouth ring sealing gasket, the sealing gasket comprising an annular gasket body, the gasket body being disposed in an impeller sleeve; the upper surface of the gasket body is a sealing surface, and the circumferential outer edge of the gasket body is flipped downward to form a positioning structure;
[0007] The vertical cross-sectional shape of the washer body is an inverted flat-bottomed pot-shaped structure, with the upper bottom of the flat-bottomed pot-shaped structure being flat and the outer edge being curved.
[0008] Preferably, the positioning structure is an outward-curved edge, and the outward-curved edge is arc-shaped.
[0009] Preferably, the outer flange is connected to the washer body by an arc-shaped edge.
[0010] Preferably, the outward-curved edge has a notch, which divides the outward-curved edge into several flanges.
[0011] Preferably, the number of the flanges is two or more.
[0012] Preferably, when the number of the flanges is odd, the flanges are set at equal intervals.
[0013] Preferably, when the number of flanges is even, the flanges are equidistant, and the two flanges located at both ends of the diameter of the washer body are symmetrically arranged.
[0014] A submersible pump for wells includes an impeller sleeve and an impeller assembled together, and a mouth ring gasket as described in any of the above claims, wherein the gasket body is disposed in the impeller sleeve.
[0015] Preferably, the washer body is embedded in the impeller sleeve, and the mounting surface of the impeller contacting the washer body is recessed downward to form a groove for accommodating the body.
[0016] Preferably, the upper surface of the washer body is flush with the bottom surface of the impeller sleeve inner cavity.
[0017] The beneficial effects of this utility model are as follows: By using the gasket and submersible pump for wells provided by this utility model, compared with the prior art, the outer circumferential edge of the gasket body is turned downward to form a flange that can be embedded in the impeller sleeve, and the flange is fixed after assembly. This achieves the fixation and installation of the gasket body itself, effectively reducing the single-stage height of the submersible pump for wells. The overall height of the installed submersible pump for wells is reduced, making transportation and installation more convenient. After multi-stage assembly, the overall height of the submersible pump for wells can be significantly reduced, thereby achieving the goal of reducing product bending failure. This not only improves the efficiency of product transportation and installation but also enhances the reliability and service life of the product. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the existing mouth ring sealing gasket structure;
[0019] Figure 2 A cross-sectional view of a single-stage assembly of a submersible pump for wells using an existing mouth ring seal gasket.
[0020] Figure 3 This is an isometric drawing of the washer body of this utility model;
[0021] Figure 4 This is a front view of the washer body of this utility model;
[0022] Figure 5This is a cross-sectional view of the washer body and the submersible pump for wells assembled in this utility model.
[0023] Figure 6 This is a height comparison diagram between existing submersible pumps for wells and the single-stage assembly of this utility model.
[0024] Explanation of the reference numerals in the figure:
[0025] 1. Gasket body; 11. Sealing surface; 2. Notch; 3. Flanged edge; 4. Arc edge; 5. Impeller sleeve; 6. Impeller. Detailed Implementation
[0026] To better explain and facilitate understanding of the present invention, a detailed description of the invention is provided below with reference to the accompanying drawings and specific embodiments. This utility model discloses a gasket with an inlet ring and a submersible pump for wells. The gasket body is disposed within an impeller sleeve. The outer circumferential edge of the gasket body is flipped downwards to form a flange that can be embedded in the impeller sleeve. After injection molding, the flange is fixed, effectively reducing the single-stage height of the submersible pump for wells, making transportation and installation more convenient. After multi-stage assembly, the overall height of the submersible pump for wells can be significantly reduced.
[0027] The technical solutions of the present invention 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 invention, and not all embodiments. Various changes can be made to the implementation scheme as long as the effects of the present invention can be achieved.
[0028] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.
[0029] like Figures 3 to 6 As shown in the figure, this application embodiment proposes a mouth ring sealing gasket, which includes an annular gasket body 1, and the gasket body 1 is disposed in the impeller sleeve.
[0030] In this embodiment, as Figure 4 As shown, the vertical cross-sectional shape of the gasket body 1 is an inverted flat-bottomed pot-shaped structure. The upper bottom of the flat-bottomed pot-shaped structure (i.e., the gasket body 1) is flat, and the outer edge is curved. The flat part is used for contact sealing of the assembly surfaces of the two assembled objects, and the outer curved surface is embedded in the impeller sleeve to achieve the purpose of fixing and reducing the height of the single stage.
[0031] Specifically, the upper surface of the planar portion of the washer body 1 is the sealing surface 11, which contacts the bottom surfaces of the two impellers. The circumferential outer edge of the washer body 1 is turned downward to form a positioning structure with an arc surface. The positioning structure is an outwardly turned edge, which is arc-shaped and is embedded in the impeller sleeve.
[0032] In addition, an arc-shaped edge 4 connects the outward-facing edge and the washer body 1, making the transition between the outward-facing edge and the washer body 1 smooth.
[0033] In this embodiment, the outward-facing edge is a complete circle (not shown in the figure) or has a notch 2 on it (e.g. Figure 3 As shown), the outer flange is divided into several flanges 3, which are embedded in the impeller sleeve.
[0034] It should be noted that the number of flanges 3 is two or more. When the number of flanges 3 is odd, they are equidistant, so that the circumference of the washer body 1 is fixed at multiple points. When the number of flanges 3 is even (e.g., ...), ... Figure 3 As shown, each flange 3 is equidistantly arranged, and the two flanges 3 located at both ends of the diameter of the washer body 1 are symmetrically arranged, so that the flanges 3 can be fixed symmetrically around the circumference of the washer body 1, thereby improving the fixing effect.
[0035] In addition, this utility model also provides a submersible pump for wells, such as Figure 5 As shown, the impeller sleeve 5 and impeller 6 are assembled together, as well as the aforementioned mouth ring sealing gasket. The gasket body 1 is embedded in the impeller sleeve 5, and the impeller 6 contacts the gasket body 1. Furthermore, the upper surface of the gasket body is flush with the bottom surface of the inner cavity of the impeller sleeve.
[0036] In this embodiment, as Figure 6 As shown, the single-stage assembly height of the submersible pump using the gasket of the prior art is A, while the single-stage assembly height of the submersible pump using the mouth ring seal gasket of this embodiment is B, where B < A. This reduces the height of the installed product, making it more convenient to transport and install. After multi-stage assembly, the overall height of the submersible pump can be significantly reduced, thereby achieving the goal of reducing product bending failure.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A mouth ring sealing gasket, characterized in that: The sealing gasket includes an annular gasket body, which is disposed in the impeller sleeve; the upper surface of the gasket body is a sealing surface, and the circumferential outer edge of the gasket body is turned downward to form a positioning structure.
2. The mouth ring sealing gasket according to claim 1, characterized in that: The positioning structure is an outward-curved edge, and the outward-curved edge is arc-shaped.
3. The mouth ring sealing gasket according to claim 2, characterized in that: The outer flange is connected to the washer body by an arc-shaped edge.
4. A mouth ring sealing gasket according to claim 2 or 3, characterized in that: The outward-facing edge has a notch, which divides the outward-facing edge into several flanges.
5. The mouth ring sealing gasket according to claim 4, characterized in that: The number of the flanges is two or more.
6. The mouth ring sealing gasket according to claim 5, characterized in that: When the number of the flanges is odd, the flanges are set at equal intervals.
7. The mouth ring sealing gasket according to claim 5, characterized in that: When the number of flanges is even, the flanges are equidistant, and the two flanges located at both ends of the diameter of the washer body are symmetrically arranged.
8. A submersible pump for wells, characterized in that: It includes an impeller sleeve and an impeller assembled together, and a mouth ring sealing gasket as described in any one of claims 1 to 7, wherein the gasket body is disposed in the impeller sleeve.
9. A submersible pump for wells according to claim 8, characterized in that: The washer body is embedded in the impeller sleeve, and the impeller contacts the washer body.
10. A submersible pump for wells according to claim 9, characterized in that: The upper surface of the washer body is flush with the bottom surface of the impeller sleeve inner cavity.