Anti-blocking shield pump

Abstract

The utility model relates to the field of shield pumps, and discloses an anti-blocking shield pump which comprises a shield pump body, a liquid conveying pipe is arranged on the edge portion of one side of the shield pump body, a movable connecting pipe is movably installed on the outer surface of the liquid conveying pipe, and a movable sleeve is movably installed on the outer surface of the liquid conveying pipe and the outer surface of the movable connecting pipe. A connecting frame is welded to one side of each movable sleeve, a placement groove is formed in one side of each connecting frame, a filter element is installed between the two connecting frames and located in the placement groove, filter screens are fixedly connected to the edge portions of the two sides of the filter element, and fastening mechanisms are further arranged on the outer surfaces of the connecting frames. The filter element is fixed between the liquid conveying pipe and the movable connecting pipe through the connecting frame, so that the effect of conveniently disassembling, assembling and replacing the filter element is achieved, the overall smoothness of the shield pump body is improved, the problem that liquid circulation is affected by impurities blocked in the filter element is solved, and the overall use efficiency of the shield pump body is improved.

Description

Technical Field

[0001] The present application relates to the field of canned motor pumps, and in particular to an anti-clogging canned motor pump. Background Art

[0002] A canned motor pump is a sealless pump, also known as a leak-free pump. Its motor and pump body are sealed within a thin-walled cylinder called a "canned sleeve." This allows the pump's impeller and motor's rotor to be on the same shaft. This static seal completely isolates the pumped liquid from the outside world, thus avoiding the problems associated with conventional pumps caused by shaft seal leakage.

[0003] When existing shielded pumps are transporting liquid media, some liquids contain solid particles such as mud, metal chips, fibers, etc. These impurities are easily deposited or stuck in the impeller, flow channel wall and other parts when flowing through the water inlet and internal flow channel of the pump. However, after a certain period of use, the filter screen that filters impurities in the shielded pump will be clogged by the impurities attached to it, thereby affecting the overall liquid transportation efficiency of the shielded pump. In addition, the filter screen is time-consuming and labor-intensive to disassemble and replace, which increases the labor intensity of people during operation.

[0004] In view of the above-mentioned related technologies, the inventor believes that the existing shielded pump has the defect that it is inconvenient to replace the filter during use. Therefore, an anti-clogging shielded pump is proposed to solve the above problem. Utility Model Content

[0005] In order to solve the problem that it is inconvenient to replace the filter screen of the existing canned motor pump during use, the present application provides an anti-clogging canned motor pump.

[0006] The anti-clogging canned motor pump provided in this application adopts the following technical solution:

[0007] A blockage-resistant shielded pump comprises a shielded pump body, a liquid infusion tube is provided on one side edge of the shielded pump body, a movable connecting tube is movably mounted on the outer surface of the liquid infusion tube, movable sleeves are movably mounted on the outer surfaces of the liquid infusion tube and the movable connecting tube, a connecting frame is welded to one side of the movable sleeve, a placement groove is provided on one side of the connecting frame, a filter element is installed inside the placement groove between the two connecting frames, filter screens are fixed to the edges on both sides of the filter element, and a fastening mechanism is also provided on the outer surface of the connecting frame for fixing the two connecting frames to each other.

[0008] Preferably, the fastening mechanism includes a fixing groove, which is opened at the four corners of the outer surface of the connecting frame. A fastening screw is rotatably installed inside the multiple fixing grooves on the outer surface of a single connecting frame. One side edge of the fastening screw overlaps the fixing groove inside another connecting frame, and one side edge of the outer surface of the fastening screw abuts against the outer surface of the connecting frame and is threadedly connected to a fastening nut.

[0009] Preferably, a fixed stopper is fixedly installed on one side of the infusion tube and the movable connecting tube, and a sealing gasket is sleeved on the outer surface of the infusion tube and the movable connecting tube near the fixed stopper, and the outer surface of the sealing gasket abuts against the inner wall of the movable sleeve.

[0010] Preferably, an elastic sealing pad is welded on one side of the connecting frame near the opening of the placement slot, and the two elastic sealing pads are tightly attached to each other.

[0011] Preferably, the overall volume of the filter element and the filter screen is smaller than the internal volume of the two placement slots combined, and the filter element and the filter screen are both engaged with the placement slots.

[0012] In summary, this application has the following beneficial technical effects:

[0013] By bringing the infusion tube and the movable connecting tube close to each other, and making the movable sleeve move to drive the two connecting frames to abut against each other, the filter element and the filter screen are placed inside the placement groove, the fastening screw is rotated to overlap the two connecting frames, and the fastening nut is used to seal and fix the two connecting frames to each other; compared with the existing technology, this solution has the effect of facilitating the convenient disassembly and replacement of the filter element, improving the overall smoothness of the shielded pump body, solving the effect of impurities blocking the filter element affecting the liquid circulation, and improving the overall utilization efficiency of the shielded pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0015] Figure 2 It is a structural diagram of the filter element in the application embodiment;

[0016] Figure 3 is a schematic cross-sectional structural diagram of a connecting frame in an embodiment of the application;

[0017] Explanation of the accompanying symbols: 1. Shielding pump body; 2. Infusion tube; 3. Movable connecting tube; 4. Fixed block; 5. Sealing gasket; 6. Movable sleeve; 7. Connecting frame; 8. Placement groove; 9. Filter element; 10. Filter screen; 11. Fixing groove; 12. Fastening screw; 13. Fastening nut; 14. Elastic sealing gasket. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-3 This application is described in further detail.

[0019] The embodiment of the present application discloses an anti-clogging canned motor pump. Figure 1-3, a blockage-proof shielded pump comprises a shielded pump body 1, a liquid infusion tube 2 is provided on one side edge of the shielded pump body 1, a movable connecting tube 3 is movably installed on the outer surface of the liquid infusion tube 2, a movable sleeve 6 is movably installed on the outer surfaces of the liquid infusion tube 2 and the movable connecting tube 3, a connecting frame 7 is welded on one side of the movable sleeve 6, an elastic sealing gasket 14 is welded on one side of the connecting frame 7 near the opening of the placement groove 8, the two elastic sealing gaskets 14 are tightly attached to each other, a placement groove 8 is provided on one side of the connecting frame 7, a filter element 9 is installed inside the placement groove 8 between the two connecting frames 7, a filter screen 10 is fixed to the edges on both sides of the filter element 9, the overall volume of the filter element 9 and the filter screen 10 is smaller than the internal volume of the combination of the two placement grooves 8, the filter element 9 and the filter screen 10 are mutually engaged with the placement groove 8, and a fastening mechanism is also provided on the outer surface of the connecting frame 7 for fixing the two connecting frames 7 to each other.

[0020] By moving the movable connecting tube 3 close to the outer surface of the infusion tube 2 and pulling the movable sleeve 6 to move along the outer surfaces of the infusion tube 2 and the movable connecting tube 3 respectively, the filter element 9 and the filter screen 10 are placed in the placement groove 8 between the two connecting frames 7, so that the movable sleeve 6 moves to drive the two connecting frames 7 close to each other, and the two elastic sealing pads 14 abut against each other, thereby fixing the filter element 9 and the filter screen 10 inside the placement groove 8, and filtering the liquid transported between the infusion tube 2 and the movable connecting tube 3, reflecting the overall anti-clogging effect of liquid transport to the inside of the shielded pump body 1.

[0021] Reference Figure 2 and Figure 3 The fastening mechanism includes a fixing groove 11, which is opened at the four corners of the outer surface of the connecting frame 7. A fastening screw 12 is rotatably installed inside the multiple fixing grooves 11 on the outer surface of a single connecting frame 7. One side edge of the fastening screw 12 is overlapped into the fixing groove 11 inside another connecting frame 7, and one side edge of the outer surface of the fastening screw 12 abuts against the outer surface of the connecting frame 7 and is threadedly connected to a fastening nut 13.

[0022] By rotating the fastening screw 12 and moving it along the inside of the fixing groove 11 to overlap the two connecting frames 7, and rotating the fastening nut 13 and moving it along the outer surface of the fastening screw 12, the fastening nut 13 is abutted against the outer surface of the connecting frame 7, and the two connecting frames 7 are sealed and fixed to each other, which reflects the connection and fixing effect of the fastening screw 12 and the fastening nut 13 on the two connecting frames 7.

[0023] Reference Figure 2 and Figure 3 A fixed stopper 4 is fixedly installed on one side edge of the infusion tube 2 and the movable connecting tube 3. A sealing gasket 5 is sleeved on the outer surface of the infusion tube 2 and the movable connecting tube 3 near the fixed stopper 4, and the outer surface of the sealing gasket 5 abuts against the inner wall of the movable sleeve 6.

[0024] By pulling the movable sleeve 6 along the outer surface of the infusion pipe 2 and the movable connecting pipe 3 respectively, the movable sleeve 6 pushes the sealing gasket 5 to abut against the fixed stopper 4, and the sealing effect of the sealing gasket 5 on the movable sleeve 6 is realized.

[0025] The implementation principle of the anti-blocking shielding pump in the embodiment of the application is as follows: the movable connecting pipe 3 is moved close to the outer surface of the infusion pipe 2, and the movable sleeve 6 is pulled to move along the outer surfaces of the infusion pipe 2 and the movable connecting pipe 3 respectively, so that the movable sleeve 6 pushes the sealing gasket 5 to abut against the fixed stopper 4, the filter element 9 and the filter screen 10 are placed in the placement groove 8 between the two connecting frames 7, the movable sleeve 6 drives the two connecting frames 7 to move close to each other, and the two elastic sealing gaskets 14 abut against each other, the fastening screw 12 is rotated to be clamped on the two connecting frames 7 along the inside of the fixed groove 11, and the fastening nut 13 is rotated to move along the outer surface of the fastening screw 12, so that the fastening nut 13 abuts against the outer surface of the connecting frame 7, and the two connecting frames 7 are sealed and fixed to each other; compared with the prior art, the filter element 9 can be conveniently disassembled and replaced, the overall smoothness of the shielding pump body 1 is improved, the effect of the blocked impurities in the filter element 9 on the liquid flow is solved, and the overall use efficiency of the shielding pump body 1 is improved.

[0026] Finally, it should be pointed out that: first, in the description of the application, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0027] Secondly: the utility model discloses the embodiment of the drawings only relates to the structure involved in the embodiment of the present disclosure, and other structures can refer to the usual design, and in the case of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

[0028] Finally: the preferred embodiments of the utility model are described above, and the utility model is not limited to this, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

[0029] The above are the preferred embodiments of the application, and are not used to limit the protection scope of the application, so: any equivalent change made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. An anti-clogging shielded pump, comprising a shielded pump body (1), wherein a liquid infusion tube (2) is provided on one side of the shielded pump body (1), characterized in that: A movable connecting tube (3) is movably mounted on the outer surface of the infusion tube (2), and a movable sleeve (6) is movably mounted on the outer surfaces of the infusion tube (2) and the movable connecting tube (3). A connecting frame (7) is welded to one side of the movable sleeve (6), and a placement groove (8) is provided on one side of the connecting frame (7). A filter element (9) is mounted inside the placement groove (8) between the two connecting frames (7), and filter screens (10) are fixed to both side edges of the filter element (9). A fastening mechanism is also provided on the outer surface of the connecting frame (7) for fixing the two connecting frames (7) to each other.

2. The anti-clogging canned motor pump according to claim 1, characterized in that: The fastening mechanism comprises a fixing groove (11), the fixing groove (11) being opened at the four corners of the outer surface of the connecting frame (7), a fastening screw (12) being rotatably installed inside the multiple fixing grooves (11) on the outer surface of a single connecting frame (7), one side edge of the fastening screw (12) being overlapped into the fixing groove (11) inside another connecting frame (7), and one side edge of the outer surface of the fastening screw (12) being abutted against the outer surface of the connecting frame (7) and being threadedly connected with a fastening nut (13).

3. The anti-clogging canned motor pump according to claim 1, characterized in that: A fixed stopper (4) is fixedly installed on one side of the infusion tube (2) and the movable connecting tube (3); a sealing gasket (5) is sleeved on the outer surface of the infusion tube (2) and the movable connecting tube (3) near the fixed stopper (4); and the outer surface of the sealing gasket (5) abuts against the inner wall of the movable sleeve (6).

4. The anti-clogging canned motor pump according to claim 1, characterized in that: An elastic sealing pad (14) is welded to one side of the connecting frame (7) near the opening of the placement groove (8), and the two elastic sealing pads (14) are tightly attached to each other.

5. The anti-clogging canned motor pump according to claim 1, characterized in that: The filter The overall volume of the core (9) and the filter (10) is smaller than the internal volume of the two placement slots (8) combined. The filter element (9) and the filter screen (10) are both engaged with the placement groove (8).

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