Quick dismounting structure of centrifugal pump

Abstract

The utility model discloses a centrifugal pump quick dismounting structure, it belongs to pipeline connection technical field, and it solved the problem of complicated operation, low efficiency of connecting mode in prior art. It mainly includes two buckles, and the inside of buckle is equipped with recess, and the bottom of two buckles is hinged together, and the top of two buckles is connected through open-close structure, and the open-close structure includes lever, connecting piece and tension knob, and one end of connecting piece is connected with lever, and the other end is connected with tension knob, and the lever is equipped with limit block, and the lever is connected with connecting piece through limit block, and the limit block is equipped with pivot hole, and the pivot hole is equipped with eccentric shaft, and the eccentric shaft is arranged on one of the buckle, and the other buckle is equipped with limit platform, and the limit platform is matched with tension knob. The utility model discloses through bottom hinged and lever formula open-close structure, and the operator only needs to pull lever to complete the locking or release of buckle, and completely avoids the tedious procedure of tightening or loosening multiple bolts one by one.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection technology, and more specifically, to a quick disassembly and assembly structure for a centrifugal pump. Background Technology

[0002] Currently, the connection and fixing method between the centrifugal pump body and the gasoline engine is mostly bolted. For example, the prior art application with publication number CN213954602U discloses a pipe clamp structure, including a clamp part and a locking structure. The locking structure includes a screw and a clamping cap. The clamping cap includes a threaded section and a handle section, which are connected. The handle section has a cavity in the middle, and the threaded section has a threaded hole. The cavity and the threaded hole are interconnected. One end of the screw is hinged to the clamp part, and the other end of the screw is threaded to the threaded hole. The free end of the screw has a limiting member, and the lateral dimension of the limiting member is larger than the diameter of the threaded hole. This method can lock the pipe while preventing the nut from being lost, but its connection method is complex to operate and has low efficiency. Currently, there is a lack of a connection structure that is both efficient and easy to assemble and disassemble. Utility Model Content

[0003] The purpose of this invention is to provide a quick-disassembly and assembly structure for centrifugal pumps, so as to solve the problems of complex operation and low efficiency of existing connection methods.

[0004] This utility model is achieved through the following technical solution: A quick-assembly and disassembly structure for a centrifugal pump includes two clips with grooves on their inner sides. The bottom ends of the two clips are hinged together, and the top ends of the two clips are connected by an opening and closing mechanism. The opening and closing mechanism includes a lever, a connecting piece, and a tension knob. One end of the connecting piece is connected to the lever, and the other end is connected to the tension knob. The lever has a limiting block, and the lever is connected to the connecting piece through the limiting block. The limiting block has a rotating shaft hole, and an eccentric shaft is installed in the rotating shaft hole. The eccentric shaft is mounted on one of the clips, and the other clip has a limiting platform that cooperates with the tension knob.

[0005] Furthermore, the end of the connecting piece is provided with an opening, and the opening of the connecting piece is sleeved on the limiting block. The axis of the eccentric shaft is parallel to the axis of the limiting block but does not coincide with it.

[0006] Furthermore, the bottom end of the connecting piece is threaded; the tension knob is threadedly connected to the connecting piece.

[0007] Furthermore, a connecting groove is provided in the middle of the limiting platform, and a limiting groove is provided on the end face of the limiting platform.

[0008] Furthermore, the tension knob is provided with anti-slip texture.

[0009] Furthermore, the lever is arc-shaped, and a pressing plate is provided at the end of the lever.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes a bottom hinge and lever-type opening and closing structure, allowing operators to lock or release the latch simply by moving the lever, completely eliminating the tedious process of tightening or loosening multiple bolts one by one. This invention provides sufficient, uniform, and adjustable clamping force, ensuring effective compression of the seal, preventing fluid leakage, and enhancing safety. The invention also includes an internal groove that secures the gasoline engine side flange and the centrifugal pump body side flange together. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the opening and closing structure of this utility model. Figure 2 This is a schematic diagram of the opening and closing structure of this utility model. Figure 3 This is a left view of the opening and closing structure of this utility model; Figure 4 This is a front view of the opening and closing structure of this utility model; Figure 5 This is a top view of the opening and closing structure of this utility model.

[0012] In the diagram: 1. Lever; 2. Buckle; 3. Tension knob; 4. Connecting piece; 5. Groove; 6. Bolt; 7. Eccentric shaft; 8. Limiting platform; 9. Limiting groove; 10. Limiting block. Detailed Implementation

[0013] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, the directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the creation of this utility model.

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Example 1: A quick-assembly and disassembly structure for a centrifugal pump, such as... Figures 1-2As shown, the device includes two clips 2, each with a groove 5 on its inner side. The groove 5 secures the gasoline engine side flange and the pump body side flange together. The bottom ends of the two clips 2 are hinged together, and their top ends are connected by an opening and closing structure. This structure includes a lever 1, a connecting piece 4, and a tension knob 3. One end of the connecting piece 4 is connected to the lever 1, and the other end is connected to the tension knob 3. The lever 1 has a limiting block 10, which connects it to the connecting piece 4. The limiting block 10 has a rotating shaft hole, and an eccentric shaft 7 is installed inside the rotating shaft hole. The eccentric shaft 7 is mounted on one of the clips 2, and the other clip 2 has a limiting platform 8, which engages with the tension knob 3.

[0016] This invention enables rapid connection and disconnection between a centrifugal pump and a gasoline engine, reducing the original disassembly and assembly process, which took several minutes or even more than ten minutes, to tens of seconds. Through a bottom hinge and lever-type opening and closing structure, the operator only needs to move lever 1 to lock or release the buckle 2, completely avoiding the tedious process of tightening or loosening multiple bolts 6 one by one.

[0017] Example 2: A quick-assembly and disassembly structure for a centrifugal pump, such as... Figures 3-5 As shown, the end of the connecting piece 4 is provided with an opening, and the opening of the connecting piece 4 is sleeved on the limiting block 10. The axis of the eccentric shaft 7 is parallel to the axis of the limiting block 10 but does not coincide with it. The lever 1 drives the eccentric shaft 7 to rotate. When it approaches the closed position, the change of the lever arm generates a huge mechanical force amplification effect, which can output a huge locking force with a small operating force.

[0018] The bottom end of the connecting piece 4 is threaded; the tension knob 3 is threadedly connected to the connecting piece 4. By rotating the tension knob 3, the length of the connecting piece 4 can be finely adjusted, thereby precisely controlling the final clamping force applied to the buckle 2, ensuring that the best sealing condition is achieved every time it is installed, avoiding problems such as overtightening and damaging the seal, or being too loose and causing fluid leakage.

[0019] The limiting platform 8 has a connecting groove in the middle, and a limiting groove 9 is provided on the end face of the limiting platform 8. The tension knob 3 has anti-slip texture. The lever 1 is arc-shaped, and a pressing plate is provided at the end of the lever 1. The bottoms of the two buckles 2 are hinged together by bolts 6.

[0020] Everything else is the same as in Example 1.

[0021] When using this utility model, align the flange of the centrifugal pump body with the flange of the gasoline engine, and snap the groove 5 of the buckle 2 into the flanges on both sides. The operator holds the pressing plate at the end of the lever 1 and pulls the lever 1 upward and outward. The lever 1 drives the limit block 10 and its internal eccentric shaft 7 to start rotating. Because the axis of the eccentric shaft 7 does not coincide with the axis of the limiting block 10, the connecting piece 4 will stretch outwards, thus loosening the braid. At this time, the tension knob 3 is passed through the connecting groove and then engaged with the limiting groove 9 for limiting. The end of the tension knob 3 is inserted into the limiting groove 9 of the limiting platform 8. The operator will rotate the tension knob 3 for initial pre-tightening. Since the tension knob 3 and the bottom end of the connecting piece 4 are threaded, rotating the tension knob 3 can finely adjust the effective length of the connecting piece 4, thereby tightening the distance between the two clips 2. Then, the operator holds the pressing plate at the end of the lever 1 and presses the lever 1 inwards. The connecting piece 4 will retract inwards, thereby tightening the two clips 2. At this time, the shaft hole is located at the innermost side of the limiting block 10, and the opening and closing mechanism is in a self-locking state. Vibration and internal pressure will make it lock even tighter. At this time, the flange of the centrifugal pump body and the flange of the gasoline engine have been evenly and reliably fixed, and the centrifugal pump can be started. During disassembly, lever 1 is turned to rotate the eccentric shaft 7, causing the connecting piece 4 to loosen; the tension knob 3 disengages from the groove of the limit platform 8; the two clips 2 open, releasing the two flanges and completing the disassembly.

[0022] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A quick dismounting structure of a centrifugal pump comprising two clamps (2), characterized in that: The buckle (2) has a groove (5) on its inner side. The bottom ends of the two buckles (2) are hinged together, and the top ends of the two buckles (2) are connected by an opening and closing structure. The opening and closing structure includes a lever (1), a connecting piece (4) and a tension knob (3). One end of the connecting piece (4) is connected to the lever (1), and the other end is connected to the tension knob (3). The lever (1) is provided with a limiting block (10). The lever (1) is connected to the connecting piece (4) through the limiting block (10). The limiting block (10) is provided with a rotating shaft hole, and an eccentric shaft (7) is provided in the rotating shaft hole. The eccentric shaft (7) is set on one of the buckles (2), and a limiting platform (8) is provided on the other buckle (2). The limiting platform (8) cooperates with the tension knob (3).

2. The centrifugal pump quick-disassembly and assembly structure according to claim 1, characterized in that: The connecting piece (4) is provided with an opening, and the opening of the connecting piece (4) is sleeved on the limiting block (10). The axis of the eccentric shaft (7) is parallel to the axis of the limiting block (10) but does not coincide.

3. The centrifugal pump quick-disassembly and assembly structure according to claim 2, characterized in that: The bottom end of the connecting piece (4) is threaded; the tension knob (3) is threadedly connected to the connecting piece (4).

4. The centrifugal pump quick-disassembly and assembly structure according to claim 3, characterized in that: The limiting platform (8) has a connecting groove in the middle and a limiting groove (9) on the end face of the limiting platform (8).

5. The centrifugal pump quick-disassembly and assembly structure according to claim 2, characterized in that: The tension knob (3) is provided with anti-slip texture.

6. The centrifugal pump quick-disassembly and assembly structure according to claim 1, characterized in that: The lever (1) is arc-shaped and has a pressing plate at one end.

7. The centrifugal pump quick-disassembly and assembly structure according to claim 1, characterized in that: The bottoms of the two buckles (2) are hinged together by bolts (6).

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