Quick installation structure of outer pipe of water feeding pump

Abstract

A kind of water feeding pump outer pipe quick installation structure capable of quick installation, simple operation, time-saving and labor-saving, including multiple outer pipes, guide bearing frame being arranged between adjacent two outer pipes, the adjacent outer pipes of the two are connected with connecting sleeve, the upper part of the connecting sleeve is matched with the upper adjacent outer pipe with gap and is clamped in the lower end of the outer pipe, the outer peripheral surface of the upper end of the lower adjacent outer pipe is provided with segmented outer thread being distributed along the circumferential direction, the inner circumferential surface of the connecting sleeve is provided with segmented inner thread corresponding to the segmented outer thread, when the inner and outer threads are completely dislocated, the connecting sleeve and the lower adjacent outer pipe can be directly inserted and rotated with each other and then connected by thread, the connecting sleeve and the lower adjacent outer pipe are connected by thread, and form multiple thread interval areas opposite to each other;A containing cavity is arranged in one of the opposite thread interval areas, a lock plate is placed in the containing cavity, and the connecting sleeve and the lower adjacent outer pipe are locked by applying force to the lock plate and cannot move relative to each other.

Description

Technical Field

[0001] This utility model relates to water pumps, and more particularly to a quick-installation structure for the outer pipe of a water feeder pump. 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. Each flange requires 8-12 bolts, and a single feed pump typically has 6-8 flanges, totaling nearly a hundred 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 utility model is to solve the above-mentioned problems in the background technology and provide a quick installation structure for the external pipe of a water pump that is quick to install, easy to operate, time-saving, labor-saving, and easy to maintain.

[0004] A quick-installation structure for the outer pipe of a water pump includes multiple outer pipe sections and a guide bearing bracket disposed between two adjacent upper and lower outer pipe sections. The structure is characterized by a connecting sleeve connecting adjacent sections of the two outer pipe sections. The upper part of the connecting sleeve is clearance-fitted with the upper adjacent outer pipe section and is engaged with the lower end of that section. The outer circumferential surface of the upper end of the lower adjacent outer pipe section is provided with segmented external threads evenly distributed along the circumferential direction. The inner circumferential surface of the connecting sleeve is provided with segmented internal threads corresponding to the segmented external threads. When the internal and external threads are completely misaligned, the connecting sleeve and the lower adjacent outer pipe section can be directly inserted and rotated relative to each other before being connected by threads. After the connecting sleeve and the lower adjacent outer pipe section are connected by threads, multiple opposing threaded intervals are formed. A receiving cavity is provided in one of the opposing threaded intervals, and an anti-loosening plate is placed in the receiving cavity. By applying force to the anti-loosening plate, the connecting sleeve and the lower adjacent outer pipe section are locked together, preventing relative movement between them.

[0005] Furthermore, there are two anti-loosening plates, which are in contact with each other at an angle. After being inserted into the receiving cavity, the two anti-loosening plates abut against the axial vertical surface of the corresponding connecting sleeve and the axial vertical surface of the adjacent lower outer tube, respectively.

[0006] Furthermore, a baffle is provided at the bottom of the receiving cavity on the side of the axial vertical surface of the adjacent lower outer tube that is being abutted.

[0007] Furthermore, the slope angle of the anti-loosening plate is smaller than the friction angle to achieve self-locking of the slope.

[0008] Furthermore, the receiving cavity extends radially to both the inner and outer sides to prevent the anti-loosening plate from abutting against the corresponding split inner and outer threaded portions.

[0009] Furthermore, sealing gaskets are provided between the upper adjacent outer tube and the guide bearing bracket, and between the lower adjacent outer tube and the guide bearing bracket, respectively.

[0010] Furthermore, the lower end of the adjacent outer tube is provided with an annular platform, and the upper part of the connecting sleeve is engaged with the annular platform.

[0011] Furthermore, an annular platform II is provided at the upper end of the adjacent lower outer tube, and the segmented external thread is provided on the annular platform II.

[0012] The beneficial effects of this utility model are: by using the connecting sleeve in conjunction with the anti-loosening plate, the upper and lower adjacent outer pipes can be quickly installed and disassembled, which is simple to operate, saves time and effort, facilitates maintenance, and ensures reliable connection, preventing the outer pipes from loosening when the water pump is running. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the water pump of this utility model; Figure 2 yes Figure 1 Enlarged view of Part I; Figure 3 yes Figure 2 AA section view; Figure 4 yes Figure 3 Front view of the anti-loosening board; Figure 5 This is a schematic diagram of the connecting sleeve structure; Figure 6 yes Figure 5 Top view; Figure 7 This is a schematic diagram of the lower end structure of the upper outer tube; Figure 8 This is a schematic diagram of the upper structure of the adjacent outer tube; Figure 9 yes Figure 8 Top view; Figure 10 This is a schematic diagram showing the state of the anti-loosening plate inserted into the receiving cavity during disassembly.

[0014] In the diagram: 1-Outer tube, 2-Guide bearing bracket, 3-Connecting sleeve, 4-Baffle, 5-Anti-loosening plate, 6-Sealing gasket, 7-Receiving cavity, 8-Threaded interval area, 9-Guide vane assembly, 10-Guide bearing assembly, 11-Pump shaft, 12-Outlet elbow, 13-Pump base, 14-Bearing body, 15-Motor frame, 1A-Upper adjacent outer tube, 1A1-Annular platform one, 1B-Lower adjacent outer tube, 1B1-Annular boss, 1B2-External thread, 1B3-External thread interval section, 1B4-Upper stop, 301-Internal thread, 302-Internal thread interval section, 501-Anti-loosening plate one, 502-Anti-loosening plate two, 503-Inclined surface, 701-Connecting sleeve axial elevation one, 702-Lower adjacent outer tube axial elevation two. Detailed Implementation

[0015] like Figures 1-9 As shown, a quick-installation structure for the outer pipe of a water pump includes multiple outer pipe sections 1 and a guide bearing assembly 10. The guide bearing bracket 2 of the guide bearing assembly 10 is disposed between two adjacent upper and lower outer pipe sections. The lower end of the upper adjacent outer pipe 1A and the upper end of the lower adjacent outer pipe 1B are provided with an annular platform 1A1 and an annular platform 1B1, respectively. The upper adjacent outer pipe 1A and the lower adjacent outer pipe 1B are positioned by the guide bearing bracket 2. An upper stop 1B4 is provided on the annular platform 2 of the lower adjacent outer tube 1B. A connecting sleeve 3 is connected at the adjacent position of the upper adjacent outer tube 1A and the lower adjacent outer tube 1B. The connecting sleeve 3 is clearance-fitted with the upper adjacent outer tube 1A. The upper part of the connecting sleeve 3 is locked on the annular platform 1A1 at the lower end of the upper adjacent outer tube 1A. The outer circumferential surface of the annular platform 1B1 at the upper end of the lower adjacent outer tube 1B is provided with a segmented external thread 1B2 evenly distributed in the circumferential direction. The inner circumferential surface of the connecting sleeve 3 is provided with a segmented internal thread 301 corresponding to the segmented external thread 1B2. When the segmented internal and external threads are completely misaligned, the segmented internal thread 301 of the connecting sleeve 3 can be aligned with the external thread interval 1B3 of the lower adjacent outer tube 1B and the segmented external thread of the lower adjacent outer tube 1B. The thread 1B2 is directly inserted into the internal threaded interval 302 of the connecting sleeve 3. After rotating with each other, they are connected by threads. Multiple opposing threaded intervals 8 are formed between the connecting sleeve 3 and the lower adjacent outer tube 1B. A receiving cavity 7 is provided in one of the threaded intervals. Anti-loosening plates 5 are placed in the receiving cavity 7. There are two anti-loosening plates 5, namely anti-loosening plate one 501 and anti-loosening plate two 502, which are in contact with each other through the inclined surface 503. After the anti-loosening plates 5 are driven into the receiving cavity 7, anti-loosening plate one 501 abuts against the corresponding axial vertical surface one 701 of the connecting sleeve, and anti-loosening plate two 502 abuts against the corresponding axial vertical surface 702 of the lower adjacent outer tube, so that the connecting sleeve 3 and the lower adjacent outer tube 1B are locked and cannot rotate relative to each other.

[0016] Furthermore, a baffle 4 is provided at the bottom of the receiving cavity 7 on the side corresponding to the axial vertical surface 702 of the lower adjacent outer tube that is being pushed against.

[0017] Furthermore, the inclined surface 503 of the anti-loosening plate 5 has an inclination angle smaller than the friction angle to achieve self-locking of the inclined surface.

[0018] Furthermore, sealing gaskets 6 are respectively provided between the upper adjacent outer tube 1A and the lower adjacent outer tube 1B and the guide bearing bracket 2.

[0019] Furthermore, the threaded interval region 8 has three sections.

[0020] Furthermore, the receiving cavity 7 extends radially inward and outward to prevent the anti-loosening plate 5 from abutting against the broken thread portion of the connecting sleeve 3 and the lower adjacent outer tube 1B.

[0021] During installation, the guide vane assembly 9 is pre-assembled before leaving the factory, while the remaining outer tubes need to be installed in sections on site. First, install the pump shaft 11. Second, install the lower adjacent outer tube 1B, insert the guide bearing assembly 10 (guide bearing bracket 2), and install the upper adjacent outer tube 1A. Align the split internal thread of the connecting sleeve with the threaded interval of the lower adjacent outer tube, rotate the connecting sleeve to form the threaded interval area and the receiving cavity, insert the anti-loosening plate into the receiving cavity and strike the anti-loosening plate to make the connecting sleeve and the adjacent lower outer tube rotate relative to each other until the threads are locked, thus achieving a quick connection between the upper and lower adjacent outer tube sections. The remaining outer tubes are operated in the same way. Finally, install the pump base 13, bearing body 14 and motor bracket 15. The water pump installation is now complete.

[0022] During disassembly, strike the anti-loosening plate in the opposite direction to remove it from the receiving cavity. Then, rotate the anti-loosening plate 5 180° up and down and reinstall it in the receiving groove 7. Strike the anti-loosening plate again. Figure 10 As shown, rotate the connecting sleeve 3 and the adjacent lower outer tube 1B in opposite directions to loosen the internal and external threads. Pull out the anti-loosening plate, and twist the connecting sleeve in the opposite direction to completely disengage the connecting sleeve from the threads of the adjacent lower outer tube. Lift the connecting sleeve to remove the outer tube.

Claims

1. A quick-installation structure for the outer pipe of a water pump, comprising multiple outer pipe sections and a guide bearing bracket disposed between adjacent upper and lower outer pipe sections, characterized in that, A connecting sleeve is connected to the adjacent part of the two outer tubes. The upper part of the connecting sleeve is clearance-fitted with the upper adjacent outer tube and is locked at the lower end of the outer tube. The outer circumferential surface of the upper end of the lower adjacent outer tube is provided with segmented external threads evenly distributed in the circumferential direction. The inner circumferential surface of the connecting sleeve is provided with segmented internal threads corresponding to the segmented external threads. When the internal and external threads are completely misaligned, the connecting sleeve and the lower adjacent outer tube can be directly inserted and rotated to be connected by threads. After the connecting sleeve and the lower adjacent outer tube are connected by threads, multiple threaded intervals are formed. A receiving cavity is provided in one of the opposing threaded intervals. An anti-loosening plate is placed in the receiving cavity. By applying force to the anti-loosening plate, the connecting sleeve and the lower adjacent outer tube are locked together and cannot move relative to each other.

2. The quick-installation structure for the water pump outer pipe according to claim 1, characterized in that, There are two anti-loosening plates, which are in contact with each other at an angle. After being inserted into the receiving cavity, the two anti-loosening plates abut against the axial vertical surface of the corresponding connecting sleeve and the axial vertical surface of the adjacent lower outer tube, respectively.

3. The quick-installation structure for the water pump outer pipe according to claim 1, characterized in that, A baffle is provided at the bottom of the receiving cavity on the side of the axial vertical surface of the adjacent lower outer tube that is being pushed against.

4. The quick-installation structure for the water pump outer pipe according to claim 2, characterized in that, The slope angle of the anti-loosening plate is smaller than the friction angle to achieve self-locking of the slope.

5. The quick-installation structure for the water pump outer pipe according to claim 1, characterized in that, The receiving cavity extends radially inward and outward to prevent the anti-loosening plate from abutting against the corresponding internal and external threaded portions of the break.

6. The quick-installation structure for the water pump outer pipe according to claim 1, characterized in that, Sealing gaskets are provided between the upper adjacent outer tube and the guide bearing frame, and between the lower adjacent outer tube and the guide bearing frame.

7. The quick-installation structure for the water pump outer pipe according to claim 1, characterized in that, The lower end of the adjacent outer tube is provided with an annular platform, and the upper part of the connecting sleeve is engaged with the annular platform.

8. The quick-installation structure for the outer pipe of the water pump according to claim 1, characterized in that, An annular platform II is provided at the upper end of the adjacent outer tube, and the segmented external thread is provided on the annular platform II.

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