A novel internal reflux pump lifting device and method

Abstract

The present invention discloses a novel internal reflux pump lifting device and method. The device includes a bracket, a triangular plate, and a rope. The bracket includes a first upper bracket and a second upper bracket, and the rope includes a first rope, a second rope, and a third rope. Sliders are provided on the bracket, and the slides include a first bracket slide provided on the first upper bracket and a second bracket slide provided on the second upper bracket. The triangular plate is connected to a power device via a first rope, the triangular plate is connected to the first bracket slide via a second rope, and the triangular plate is connected to the second bracket slide via a third rope. The first end of the first upper bracket is connected to the internal reflux pump, the first end of the second upper bracket is connected to the internal reflux pump, the second end of the first upper bracket is connected to the second end of the second upper bracket and can rotate around the connection point. The internal reflux pump is connected to a pipeline via a hook. The present invention solves the problem of difficulty in lifting the internal reflux pump and greatly improves maintenance efficiency.

Description

Technical Field

[0001] The invention relates to a novel internal reflux pump lifting device and method. Background Art

[0002] In the sewage treatment industry, the internal reflux pump is a very critical equipment. The internal reflux pump allows sewage to flow in the channel. Generally, the internal reflux pump is installed in the wall and is clamped on the pipe wall in the wall by two hooks.

[0003] During downtime for maintenance, an internal recirculation pump must be hoisted for inspection. Because internal recirculation pumps are often used in sewers with low visibility and are located approximately 6 meters underwater, ropes are typically pre-installed above the pump and guide rails are installed on the wall. Finally, a crane is used to pull the pump up for maintenance. Typically, this is done by pulling a wire rope from the crane. However, during long-term operation, debris from the canal can become entangled in the hook and slider guide rails, creating significant lifting resistance. Furthermore, the hook's prolonged engagement with the pipe wall can easily cause the two to become interlocked. In this situation, the unidirectional vertical pull of the wire rope is difficult to pull up, and the rope can easily break. Summary of the Invention

[0004] The present invention provides a novel internal reflux pump lifting device and method, which solves the problem of difficulty in lifting the internal reflux pump.

[0005] The object of the present invention is achieved through the following technical solutions:

[0006] A novel internal reflux pump lifting device comprises a bracket, a triangular plate and a rope;

[0007] The bracket includes a first upper bracket and a second upper bracket, and the rope includes a first rope, a second rope and a third rope;

[0008] Slide blocks are arranged on the bracket, and the slide blocks include a first bracket slide block arranged on the first upper bracket and a second bracket slide block arranged on the second upper bracket;

[0009] The triangular plate is connected to the power device through a first rope, the triangular plate is connected to the first bracket slider through a second rope, and the triangular plate is connected to the second bracket slider through a third rope;

[0010] The first end of the first upper bracket is connected to the internal reflux pump, the first end of the second upper bracket is connected to the internal reflux pump, and the second end of the first upper bracket is connected to the second end of the second upper bracket and can rotate around the connection point;

[0011] The internal reflux pump is connected to the pipeline through a hook.

[0012] As a preferred embodiment, three pins are provided on the triangular plate, and the first rope, the second rope and the third rope are respectively connected to the three pins on the triangular plate.

[0013] As a preferred embodiment, a first guide rail is provided on the first upper bracket, and the first bracket slider is connected to the first upper bracket via the first guide rail;

[0014] A second guide rail is provided on the second upper bracket, and the second bracket slider is connected to the second upper bracket through the second guide rail.

[0015] As a preferred embodiment, a first slide groove is provided on the first upper bracket, and the first bracket slider is connected to the first upper bracket by a bolt or a pin; a second slide groove is provided on the second upper bracket, and the second bracket slider is connected to the second upper bracket by a bolt or a pin; the second rope is connected to the bolt at the first bracket slider, and the third rope is connected to the bolt or pin at the second bracket slider.

[0016] As a preferred embodiment, a lifting slider is provided at the end of the internal reflux pump, and a third guide rail is installed on the wall, and the lifting slider can slide on the third guide rail.

[0017] As a preferred embodiment, the third guide rail is a vertical guide rail.

[0018] As a preferred embodiment, the end portion of the claw mouth of the hook is chamfered.

[0019] As a preferred embodiment, two hooks are provided, namely a first hook and a second hook. The first hook and the second hook are symmetrically arranged on the end circumference of the internal reflux pump and the angle between them and the vertical direction of the internal reflux pump is 60°.

[0020] As a preferred embodiment, one end of the internal reflux pump is connected to the first upper bracket, and the other end of the internal reflux pump is connected to the second upper bracket.

[0021] A novel lifting method for an internal reflux pump lifting device comprises the following steps:

[0022] (1) Control the upper end of the canal to loosen the ropes and keep all ropes in a relaxed state;

[0023] (2) adjusting the position of the first bracket slider on the first upper bracket, and adjusting the position of the second bracket slider on the second upper bracket;

[0024] (3) Control the crane at the upper end of the canal to tighten the rope and start lifting the internal reflux pump;

[0025] (4) If the internal reflux pump has a large lifting resistance and cannot be lifted, control the crane at the upper end of the water channel to loosen the ropes and keep all ropes in a relaxed state;

[0026] (5) adjusting the position of the first bracket slider on the first upper bracket and / or the position of the second bracket slider on the second upper bracket;

[0027] (6) Control the crane at the upper end of the canal to tighten the rope and start lifting the internal reflux pump;

[0028] (7) If it still cannot be lifted, repeat steps (4) to (6) until the bite force is eliminated and the internal reflux pump is finally lifted.

[0029] The beneficial effects of the present invention are as follows: the present invention solves the problem of difficulty in pulling up the internal reflux pump, thereby greatly improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the present invention;

[0031] Figure 2 Schematic diagram of the hook structure;

[0032] Figure 3 Schematic diagram of hook distribution;

[0033] In the figure, 1-wall, 2-third guide rail, 3-pipe, 4-lifting slider, 5-hook, 6-first rope, 7-triangular plate, 8-second rope, 9-third rope, 10-first upper bracket, 11-first bracket slider, 12-second upper bracket, 13-second bracket slider. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0035] The internal reflux pump lifting device provided by this patent solves the problem of difficulty in lifting the internal reflux pump and greatly improves the maintenance efficiency. The specific solution is as follows:

[0036] like Figure 1 、 Figure 2 As shown, a novel internal reflux pump lifting device includes a bracket, a triangular plate 7 and a rope;

[0037] The bracket includes a first upper bracket 10 and a second upper bracket 12, and the rope includes a first rope 6, a second rope 8 and a third rope 9;

[0038] Slide blocks are provided on the brackets, and the slide blocks include a first bracket slide block 11 provided on the first upper bracket 10 and a second bracket slide block 13 provided on the second upper bracket 12;

[0039] The triangular plate 7 is connected to the power device through the first rope 6, the triangular plate 7 is connected to the first bracket slider 11 through the second rope 8, and the triangular plate 7 is connected to the second bracket slider 13 through the third rope 9;

[0040] The first end of the first upper bracket 10 is connected to the internal reflux pump, the first end of the second upper bracket 12 is connected to the internal reflux pump, and the second end of the first upper bracket 10 is connected to the second end of the second upper bracket 12 and can rotate around the connection point;

[0041] The internal reflux pump is connected to the pipeline 3 via the hook 5. Usually, the pipeline 3 passes through the wall 1 and is connected to the internal reflux pump.

[0042] In a preferred embodiment, three pins are provided on the triangular plate 7, and the first rope 6, the second rope 8 and the third rope 9 are respectively connected to the three pins on the triangular plate 7. The ropes can rotate around the pins.

[0043] In a preferred embodiment, a first guide rail is provided on the first upper bracket 10, and the first bracket slider 11 is connected to the first upper bracket 10 via the first guide rail;

[0044] A second guide rail is provided on the second upper bracket 12 , and the second bracket slider 13 is connected to the second upper bracket 12 via the second guide rail.

[0045] In a preferred embodiment, a first slide groove is provided on the first upper bracket 10, and the first bracket slider 11 is connected to the first upper bracket 10 via a bolt or a pin; a second slide groove is provided on the second upper bracket 12, and the second bracket slider 13 is connected to the second upper bracket 12 via a bolt or a pin; the second rope 8 is connected to the bolt on the first bracket slider 11, and the third rope 9 is connected to the bolt or pin on the second bracket slider 13. The ropes can rotate around the bolts or pins.

[0046] In a preferred embodiment, a lifting slide 4 is provided at the end of the internal reflux pump, and a third guide rail 2 is mounted on the wall 1. The lifting slide 4 can slide on the third guide rail 2. When the internal reflux pump is lifted or lowered, the lifting slide 4 and the third guide rail 2 serve as positioning guides.

[0047] In a preferred embodiment, the guide rail (the third guide rail 2 ) is a vertical guide rail.

[0048] In a preferred embodiment, the ends of the claws 5 are chamfered, so that the surface contact between the claws 5 and the pipe 3 is changed to line contact, thereby reducing the bite force.

[0049] In a preferred embodiment, Figure 3 As shown, two hooks 5 are provided: a first hook 5 and a second hook 5. The first hook 5 and the second hook 5 are symmetrically arranged on the end circumference of the internal reflux pump and each has an angle of 60° with the vertical direction of the internal reflux pump. The hooks 5 are welded to the internal reflux pump and hook the pipe 3 using the weight of the internal reflux pump.

[0050] In a preferred embodiment, one end of the internal reflux pump is connected to the first upper bracket 10, and the other end of the internal reflux pump is connected to the second upper bracket 12, which is more conducive to lifting the internal reflux pump.

[0051] A novel lifting method for an internal reflux pump lifting device comprises the following steps:

[0052] (1) Control the upper end of the canal to loosen the ropes and keep all ropes in a relaxed state;

[0053] (2) Adjust the position of the first bracket slider 11 on the first upper bracket 10, adjust the position of the second bracket slider 13 on the second upper bracket 12, and adjust the center of gravity of the internal reflux pump;

[0054] (3) Control the crane at the upper end of the canal to tighten the rope and start lifting the internal reflux pump;

[0055] (4) If the internal reflux pump has a large lifting resistance and cannot be lifted, control the crane at the upper end of the water channel to loosen the ropes and keep all ropes in a relaxed state;

[0056] (5) Adjust the position of the first bracket slider 11 on the first upper bracket 10 and / or the position of the second bracket slider 13 on the second upper bracket 12 to adjust the center of gravity of the internal reflux pump;

[0057] (6) Control the crane at the upper end of the canal to tighten the rope and start lifting the internal reflux pump;

[0058] (7) If it still cannot be lifted, repeat steps (4) to (6) until the bite force is eliminated and the internal reflux pump is finally lifted.

[0059] During the lifting process of the internal reflux pump, the internal reflux pump needs to be tilted and flipped to eliminate the bite force between the hook 5 and the pipe 3. The first bracket slider 11 and the second bracket slider 13 are preferably electric sliders. By controlling the position of the electric sliders, the center of gravity of the internal reflux pump is adjusted.

[0060] This internal reflux lifting device features two movable motorized sliders mounted on two upper brackets or upper support beams, forming a slide rail. During the lifting process, the center of gravity of the internal reflux pump can be adjusted by adjusting the relative position between the upper support beam sliders and the upper support beam, allowing the pump to be flipped.

[0061] In response to the difficulty in lifting the internal reflux pump, the patent of this invention proposes a new type of internal reflux pump lifting device, which can change the center of gravity of the internal reflux pump during the lifting process. By changing the center of gravity of the internal reflux pump, the pump body can be flipped to a certain extent during the lifting process, eliminating the bite stress of the hook 5 and solving the problem of difficult lifting.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A new type of internal reflux pump lifting device, characterized by: Includes bracket, tripod and rope; The bracket includes a first upper bracket and a second upper bracket, and the rope includes a first rope, a second rope and a third rope; Slide blocks are arranged on the bracket, and the slide blocks include a first bracket slide block arranged on the first upper bracket and a second bracket slide block arranged on the second upper bracket; The triangular plate is connected to the power device through a first rope, the triangular plate is connected to the first bracket slider through a second rope, and the triangular plate is connected to the second bracket slider through a third rope. Three pins are provided on the triangular plate, and the first rope, the second rope and the third rope are respectively connected to the three pins on the triangular plate; The first end of the first upper bracket is connected to the internal reflux pump, the first end of the second upper bracket is connected to the internal reflux pump, and the second end of the first upper bracket is connected to the second end of the second upper bracket and can rotate around the connection point; The internal reflux pump is connected to the pipeline through two hooks, namely the first hook and the second hook. The first hook and the second hook are symmetrically arranged on the end circumference of the internal reflux pump and the angle between them and the vertical direction of the internal reflux pump is 60°.

2. A novel internal reflux pump lifting device according to claim 1, characterized in that: A first guide rail is provided on the first upper bracket, and the first bracket slider is connected to the first upper bracket through the first guide rail; A second guide rail is provided on the second upper bracket, and the second bracket slider is connected to the second upper bracket through the second guide rail.

3. The novel internal reflux pump lifting device according to claim 1 is characterized in that: A first slide groove is provided on the first upper bracket, and the first bracket slider is connected to the first upper bracket by a bolt or a pin; a second slide groove is provided on the second upper bracket, and the second bracket slider is connected to the second upper bracket by a bolt or a pin; the second rope is connected to the bolt at the first bracket slider, and the third rope is connected to the bolt or pin at the second bracket slider.

4. A novel internal reflux pump lifting device according to claim 1, characterized in that: A lifting slide block is provided at the end of the internal reflux pump, and a third guide rail is installed on the wall, and the lifting slide block can slide on the third guide rail.

5. A novel internal reflux pump lifting device according to claim 4, characterized in that: The third guide rail is a vertical guide rail.

6. The novel internal reflux pump lifting device according to claim 1 is characterized in that: The end of the claw of the hook is chamfered.

7. The novel internal reflux pump lifting device according to claim 1 is characterized in that: One end of the internal reflux pump is connected to the first upper bracket, and the other end of the internal reflux pump is connected to the second upper bracket.

8. A lifting method for a novel internal reflux pump lifting device according to claim 1, characterized in that: The steps include: (1) Control the upper end of the canal to loosen the ropes and keep all ropes in a relaxed state; (2) adjusting the position of the first bracket slider on the first upper bracket, and adjusting the position of the second bracket slider on the second upper bracket; (3) Control the crane at the upper end of the canal to tighten the rope and start lifting the internal reflux pump; (4) If the internal reflux pump has a large lifting resistance and cannot be lifted, control the crane at the upper end of the water channel to loosen the ropes and keep all ropes in a relaxed state; (5) adjusting the position of the first bracket slider on the first upper bracket and / or the position of the second bracket slider on the second upper bracket; (6) Control the crane at the upper end of the canal to tighten the rope and start lifting the internal reflux pump; (7) If it still cannot be lifted, repeat steps (4) to (6) until the bite force is eliminated and the internal reflux pump is finally lifted.

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