Quickly assembled water feeding pump

Abstract

A water feeding pump capable of being quickly assembled and installed comprises a guide vane assembly, an outer pipe assembly, a rotor assembly, a guide bearing assembly and a pump base assembly, the outer pipe assembly comprises a plurality of middle outer pipes, a lower outer pipe and a water outlet elbow, an annular boss is arranged on the outer wall of the outer ring of the guide bearing frame of the guide bearing assembly, the straight pipe section of the water outlet elbow, the middle outer pipe, the lower outer pipe and the guide bearing frame adjacent thereto are sealingly inserted, 3-4 intermediate connecting seats are circumferentially arranged on the inner wall of the outer ring of the guide bearing frame along the extension direction of the rib plate of the guide bearing frame, an upper connecting seat and a lower connecting seat are respectively arranged on the inner wall of the upper port of the straight pipe section of the water outlet elbow and the upper port of the lower outer pipe, a connecting bolt is inserted into each intermediate connecting seat, a connecting nut is arranged on each intermediate connecting seat, the connecting bolt at the lowermost end is connected with the lower connecting seat through threads, the connecting bolts adjacent to each other are connected with the same connecting nut, and the connecting bolt at the uppermost end is locked through a fastening nut after being upwardly inserted out of the upper connecting seat.

Description

Technical Field

[0001] This utility model relates to water pumps, and more particularly to a water feeding pump that can be quickly assembled. Background Technology

[0002] The submersible feed pump mainly consists of a guide vane assembly, an outer pipe assembly, a pump base assembly, and a rotor assembly. Together with the main drainage pump, it forms a pump unit that eliminates the need for vacuuming and cavitation, thereby improving pump efficiency and shortening start-up time. However, the submersible length of this pump is very long, typically 5-10 meters or even longer. Due to the confined space in coal mines, the pump shaft and outer pipe are composed of multiple pipe sections for easy on-site installation. During installation, adjacent pipe sections are connected via flanges and then bolted and nutred. To ensure a tight seal and avoid increasing the outer diameter, each flange typically requires 8-12 bolts. A single feed pump has approximately 6-8 flanges, totaling nearly 100 bolts. This makes installation cumbersome, operation complex, and labor-intensive for workers, resulting in significant time and effort commitments. Utility Model Content

[0003] The purpose of this invention is to solve the aforementioned problems in the background technology and to provide a water pump that can be quickly assembled.

[0004] This utility model provides a water pump that can be quickly assembled, including a guide vane assembly, an outer pipe assembly, a rotor assembly, a guide bearing assembly, and a pump base assembly. The outer pipe assembly includes several middle outer pipes, a lower outer pipe, and an outlet bend. The key feature is that an annular boss is provided on the outer wall of the guide bearing bracket of the guide bearing assembly. The straight section of the outlet bend, the middle outer pipe, the lower outer pipe, and the adjacent guide bearing bracket are sealed and inserted together, forming a stop through the annular boss of the guide bearing bracket. Three to four intermediate connecting seats are evenly distributed circumferentially along the extension direction of the guide bearing bracket's ribs on the inner wall of the outer ring of the guide bearing bracket. An upper connecting seat and a lower connecting seat are respectively provided on the inner wall of the upper end of the straight section of the outlet bend and the inner wall of the upper end of the lower outer pipe. Connecting bolts pass through each intermediate connecting seat, and connecting nuts are provided on the intermediate connecting seats. The connecting bolt at the bottom end is threaded to the lower connecting seat, and adjacent connecting bolts are connected to the same connecting nut. The connecting bolt at the top end passes upward through the upper connecting seat and is locked by a fastening nut.

[0005] Furthermore, the upper connecting seat and the middle connecting seat are respectively provided with an axial through hole one and an axial through hole two, and the lower connecting seat is provided with a threaded hole. The axial through hole one, the axial through hole two and the threaded hole are aligned vertically. The connecting bolt passes through the corresponding axial through hole one and the axial through hole two, and the connecting bolt at the lowest end is connected to the lower connecting seat through the threaded hole.

[0006] Furthermore, an O-ring seal can be provided on the sealing mating surface of the guide bearing housing, or a sealing gasket can be provided on the annular boss of the guide bearing housing.

[0007] Furthermore, the upper and lower adjacent connecting bolts are respectively connected to the upper and lower halves of the connecting nut.

[0008] Furthermore, the connecting nut and the adjacent connecting bolt are an integral structure.

[0009] Furthermore, after the connecting nut is tightened, it presses the guide bearing bracket located below it.

[0010] The beneficial effects of this utility model are as follows: Before installation, the guide vane assembly is completed before leaving the factory. During on-site installation, the guide bearing bracket, pump shaft, and connecting bolts are installed on the guide vane assembly, followed by the outer tube, and so on, from bottom to top. Finally, the pump base assembly is installed on the uppermost outer tube. Since each connecting seat and connecting bolt is located inside the pump cavity and in the extension direction of the guide bearing bracket stiffener, the overall structural dimensions can be reduced, and the impact on the flow area is minimal. The diameter of the connecting bolts can be increased to provide sufficient sealing force and connection strength, thereby reducing the number of connecting bolts to 3-4 evenly distributed along the circumference. This enables rapid installation and disassembly, making it particularly suitable for situations where installation space is limited and installation and disassembly are inconvenient. It is also simple to operate and saves time and effort. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Schematic diagram of the center outlet bend structure; Figure 3 This is a schematic diagram of the connecting bolt structure; Figure 4 This is a schematic diagram of the connecting nut structure; Figure 5 This is a schematic diagram of the guide bearing bracket structure; Figure 6 This is a schematic diagram of the guide bearing bracket structure; Figure 7 This is a schematic diagram of the inner and outer tube structure; Figure 8 This is a schematic diagram of the lower outer tube structure; Figure 9 This is a top view of the lower outer tube; Figure 10 This is a schematic diagram of a sealing gasket structure installed on a guide bearing bracket.

[0012] In the diagram: Fastening nut-1, Outlet elbow-2, Connecting bolt-3, Connecting nut-4, Guide bearing bracket-5, Inner and outer pipes-6, Lower outer pipe-7, Guide vane-8, Impeller-9, Pump shaft-10, Motor-11, Base-12, Sealing ring-13, Sealing gasket-14, Upper flange-201, Axial through hole two-202, Upper connecting seat-203, Positioning port-204, Upper thread-301, Lower thread-302, Positioning port-501, Annular boss-502, Intermediate connecting seat-503, Axial through hole one-504, Rib plate-505, Positioning port-601, Positioning port-701, Lower connecting seat-702, Threaded hole-703, Lower flange-704. Detailed Implementation

[0013] As shown in the figure, a quick-assembly water pump includes a guide vane assembly, an outer pipe assembly, a pump base assembly, a rotor assembly, and a guide bearing assembly. The rotor assembly includes an impeller 9, a pump shaft 10, and a motor 11. The pump base assembly includes a base 12, a bearing housing for supporting the pump shaft 10, and a motor frame mounted on the pump base. The outer pipe assembly includes several middle outer pipes 6, a lower outer pipe 7, and an outlet bend 2. The middle outer pipes 6 are straight pipes with positioning ports 601 at their upper and lower ends. The outlet bend 2 has an upper flange 201 and a positioning port 204 at its upper and lower ends, respectively. The lower outer pipe 7 has a positioning port 701 and a lower flange 704 at its upper and lower ends, respectively. The lower flange 704 is connected to the guide vane 8 in the guide vane assembly by connecting bolts and nuts. The guide bearing bracket 5 in the guide bearing assembly is located between two adjacent middle outer pipe sections, and between the straight section of the outlet bend 2 and the uppermost middle outer pipe section. Between pipes 6 and between the lower outer pipe 7 and the lowest middle outer pipe, 3-4 (4 in this embodiment) inwardly extending intermediate connecting seats 503 are evenly distributed circumferentially on the inner wall of the outer ring of the guide bearing frame 5 in the extending direction of the stiffener 505 of the guide bearing frame 5. The intermediate connecting seats 503 are provided with an axial through hole 504. An outwardly extending annular boss 502 is provided on the outer wall of the outer ring of the guide bearing frame 5, and the annular boss 502 forms upper and lower positioning ports 501. The middle outer pipe 6, the water outlet bend 2, and the lower outer pipe are connected. The outer pipe 7 and the adjacent guide bearing bracket 5 are sealed together and form a stop with the positioning port 501 of the annular boss 502. An upper connecting seat 203 extending inward and corresponding to the intermediate connecting seat is provided on the inner wall of the straight pipe section of the outlet bend 2. The upper connecting seat 203 contains an axial through hole 202 corresponding to the axial through hole 1 504. A lower connecting seat 702 extending inward and corresponding to the intermediate connecting seat is provided on the inner wall of the upper port of the lower outer pipe 7. The lower connecting seat 702 contains an axial through hole 202 corresponding to the axial through hole 1 504. The threaded hole 703 corresponding to hole 504 has a connecting bolt 3 passing through each intermediate connecting seat 503. The two ends of the connecting bolt 3 are respectively machined with upper threads 301 and lower threads 302. A connecting nut 4 is set on the intermediate connecting seat 503. The connecting bolt 3 at the bottom is connected to the threaded hole 703 of the lower connecting seat 702. The upper and lower adjacent connecting bolts 3 are connected to the connecting nuts 4 and press the guide bearing bracket 5. The connecting bolt 3 at the top passes upward through the upper connecting seat 203 and is locked by the fastening nut 1. In the pump base assembly, the base 12 is fastened to the upper flange 201 of the outlet elbow by connecting bolts and nuts.

[0014] In one embodiment of this utility model, combined with Figure 5 An O-ring 13 is provided at the sealing insertion surface of the guide bearing bracket 5.

[0015] In one embodiment of this utility model, combined with Figure 10 A sealing gasket 14 is provided on the annular boss 502 of the guide bearing bracket.

[0016] In one embodiment of this utility model, the upper and lower adjacent connecting bolts 3 are respectively connected to the upper and lower halves of the connecting nut 4 by threads.

[0017] In one embodiment of this utility model, the connecting nut 4 and the adjacent connecting bolt 3 are an integral structure.

Claims

1. A water pump that can be quickly assembled and installed, comprising a guide vane assembly, an outer pipe assembly, a rotor assembly, a guide bearing assembly, and a pump base assembly, wherein the outer pipe assembly includes several middle outer pipes, a lower outer pipe, and an outlet bend, characterized in that: The guide bearing assembly has an annular boss on the outer wall of the guide bearing bracket. The straight pipe section of the outlet bend, the middle outer pipe, the lower outer pipe and the guide bearing bracket adjacent to it are sealed and inserted together, and a stop is formed by the annular boss of the guide bearing bracket. 3-4 intermediate connecting seats are evenly distributed circumferentially along the extension direction of the rib plate of the guide bearing bracket on the inner wall of the outer ring of the guide bearing bracket. An upper connecting seat and a lower connecting seat are respectively provided on the inner wall of the upper port of the straight pipe section of the outlet bend and the inner wall of the upper port of the lower outer pipe. A connecting bolt passes through each intermediate connecting seat. A connecting nut is provided on the intermediate connecting seat. The connecting bolt at the bottom end is connected to the lower connecting seat by a thread. The connecting bolts that are adjacent to each other are connected to the same connecting nut. The connecting bolt at the top end passes through the upper connecting seat and is locked by a fastening nut.

2. The water pump that can be quickly assembled and installed according to claim 1, characterized in that: The upper connecting seat and the middle connecting seat are respectively provided with an axial through hole one and an axial through hole two. The lower connecting seat is provided with a threaded hole. The axial through hole one, the axial through hole two and the threaded hole are aligned vertically. The connecting bolt passes through the corresponding axial through hole one and the axial through hole two. The connecting bolt at the bottom end is connected to the lower connecting seat through the threaded hole.

3. The water pump that can be quickly assembled and installed according to claim 1, characterized in that: An O-ring is installed on the sealing mating surface of the guide bearing housing, or a sealing gasket is installed on the annular boss of the guide bearing housing.

4. The water pump that can be quickly assembled and installed according to claim 1, characterized in that: The upper and lower adjacent connecting bolts are connected to the upper and lower halves of the connecting nut, respectively.

5. The water pump that can be quickly assembled and installed according to claim 1 or 4, characterized in that: The connecting nut and the adjacent connecting bolt are an integral structure.

6. The water pump that can be quickly assembled and installed according to claim 1, characterized in that: After the connecting nut is tightened, the guide bearing bracket located below it will be pressed tight.

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