A new type of sealed structure jet pump
By setting staggered sealing layers and tower-shaped positioning protrusions between the flanges of the jet pump, the problem of decreased sealing performance of traditional jet pumps is solved, achieving higher sealing stability and performance.
Patent Information
- Application Number
- CN202522278117.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-28
AI Technical Summary
The sealing performance of traditional jet pumps deteriorates due to the inconvenience of installation caused by frequent disassembly and reassembly.
Two sealing layers are laid alternately on the pump body, and a highly stable connection is formed by the cooperation of tower-shaped positioning protrusions and round holes, which enhances the sealing performance.
It improves the stability and sealing performance of the sealing installation, prevents misalignment, and enhances the sealing performance.
Smart Images

Figure CN224679789U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water pump technology and relates to a novel sealed jet pump. Background Technology
[0002] Traditional jet pumps mostly use a one-piece pump body, but some jet pumps, in order to clean the dirt and impurities inside the pump body regularly, will set the pump body into two sections using a flange connection, and place a sealing gasket between the two flanges.
[0003] However, due to long-term disassembly and assembly, the gasket may not be installed properly. Furthermore, the gasket structure currently installed between flanges is relatively simple, which makes installation inconvenient. Therefore, the sealing performance is reduced. Summary of the Invention
[0004] The purpose of this invention is to address the aforementioned problems in the prior art by providing a jet pump with enhanced sealing performance.
[0005] The objective of this utility model can be achieved through the following technical solution: A novel sealed structure jet pump, comprising a pump body one and a pump body two, the pump body one having a flange one, and the pump body two having a flange two connected to the flange one, characterized in that a sealing structure is positioned and installed between the flange one and the flange two, the sealing structure being composed of a sealing layer one, a sealing layer two, and a sealing transition section integrally formed and transitioning between the sealing layer one and the sealing layer two, and the sealing layer one and the sealing layer two are not on the same straight line, the sealing layer one being laid on the pump body one, the sealing layer two being laid on the pump body two, the pump body one having a plurality of positioning protrusions one, and the pump body two having a plurality of positioning protrusions two, and both the positioning protrusions one and the positioning protrusions two being tower-shaped structures.
[0006] In the above-mentioned novel sealed structure jet pump, both the first sealing layer and the second sealing layer have several circular holes.
[0007] In the aforementioned novel sealed jet pump, both flange one and flange two have sealing grooves.
[0008] Compared with existing technologies, this novel sealed structure jet pump has the advantages of improved sealing installation stability and sealing performance. Attached Figure Description
[0009] Figure 1 This is a partial cross-sectional view of the jet pump with the novel sealed structure.
[0010] Figure 2 It is a 3D diagram of the sealed structure.
[0011] Figure 3 This is a cross-sectional schematic diagram of the sealed structure.
[0012] In the diagram, 1. Pump body one; 2. Pump body two; 3. Flange one; 4. Flange two; 5. Sealing layer one; 6. Sealing layer two; 7. Sealing transition section; 8. Positioning protrusion one; 9. Positioning protrusion two; 10. Round hole. Detailed Implementation
[0013] 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.
[0014] like Figure 1-3 As shown, this novel sealed structure jet pump includes a pump body 1 and a pump body 2. The pump body 1 has a flange 3, and the pump body 2 has a flange 4 connected to the flange 3. A sealing structure is positioned and installed between the flange 3 and the flange 4. The sealing structure consists of a sealing layer 5, a sealing layer 6, and a sealing transition section 7 integrally formed and transitioning between the sealing layer 5 and the sealing layer 6. The sealing layer 5 and the sealing layer 6 are not on the same straight line. The sealing layer 5 is laid on the pump body 1, and the sealing layer 6 is laid on the pump body 2. The pump body 1 has several positioning protrusions 8, and the pump body 2 has several positioning protrusions 9. Both the positioning protrusions 8 and 9 are tower-shaped structures.
[0015] To elaborate further, both sealing layer 5 and sealing layer 6 have several round holes 10. These holes 10 are inserted into positioning protrusions 8 and 9. Due to the sealing elasticity of the sealing structure, the round holes 10 adapt to deformation, which allows the sealing structure to be fastened to flanges 3 and 4, thus forming a highly stable connection. The sealing structure will not be misaligned, improving the sealing performance. Furthermore, the sealing transition section 7 formed by the spaced sealing layers 5 and 6 provides a barrier effect, further enhancing the sealing performance.
[0016] To elaborate further, both flange 3 and flange 4 have sealing grooves for the installation of corresponding sealing layers. During installation, it is necessary to match each round hole 10 and the corresponding positioning protrusion for fitting.
[0017] 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.
[0018] Although this document frequently uses terms such as pump body 1, pump body 2, flange 1, flange 2, sealing layer 1, sealing layer 2, sealing transition section 7, positioning protrusion 1, positioning protrusion 2, and round hole 10, 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 utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.
Claims
1. A novel sealed jet pump, comprising a pump body one (1) and a pump body two (2), wherein the pump body one (1) has a flange one (3) and the pump body two (2) has a flange two (4) connected to the flange one (3), characterized in that, A sealing structure is installed between flange one (3) and flange two (4). The sealing structure consists of sealing layer one (5), sealing layer two (6) and a sealing transition section (7) integrally formed and transitioning between sealing layer one (5) and sealing layer two (6). Sealing layer one (5) and sealing layer two (6) are not on the same straight line. Sealing layer one (5) is laid on pump body one (1) and sealing layer two (6) is laid on pump body two (2). Pump body one (1) has several positioning protrusions one (8) and pump body two (2) has several positioning protrusions two (9). Both positioning protrusions one (8) and positioning protrusions two (9) are tower-shaped structures.
2. The novel sealed structure jet pump according to claim 1, characterized in that, Both the first sealing layer (5) and the second sealing layer (6) have several round holes (10).
3. The novel sealed structure jet pump according to claim 1, characterized in that, Both flange one (3) and flange two (4) have sealing grooves.