Submersible axial flow pump lifting and cable protection device

Abstract

The utility model discloses a submersible axial flow pump lifting and cable protecting device, which comprises a hoisting mechanism and an adjusting mechanism, and is characterized in that the hoisting mechanism comprises an I-shaped piece, four cross-shaped wing plates arranged on the periphery of the I-shaped piece, and a waist plate fixedly connected with the bottom of the I-shaped piece; an upper lifting lug is arranged on the top part of the I-shaped piece, a lower lifting lug is arranged at the bottom of the waist plate, a plurality of pressing plates are arranged in the length direction of the waist plate, each pressing plate is connected with the waist plate through a fixing bolt, and a gap between each pressing plate and the waist plate can be adjusted by rotating the corresponding fixing bolt; the top of each wing plate is provided with an adjusting mechanism. Due to the structural design, it is guaranteed that the cable is not affected by water flow in the operation process of the submersible axial-flow pump, shaking of the pump body is reduced, and the operation stability of the submersible axial-flow pump is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump lifting devices, in particular to a lifting and cable protection device for a submersible axial flow pump. Background Art

[0002] In the prior art, a submersible axial flow pump is a common water pump. The normal installation method of this water pump is to assemble the pump body cable above the wellhead and then hoist the whole into the installation wellbore. Generally, the power supply cable of the water pump uses a submersible cable and is connected to the driving motor of the water pump. When the water pump is running, since there is no place to fix the cable, the cable will swing in the wellbore, posing a certain hidden danger to the power supply safety of the water pump. Moreover, when disassembling and overhauling this kind of water pump, construction workers need to enter the wellbore to install lifting tools, and both disassembly and overhaul are relatively troublesome. Generally, the wellbore is relatively deep, and safety accidents such as falling from a height are likely to occur.

[0003] Therefore, how to improve the operation stability of the submersible axial flow pump and the convenience of disassembly, hoisting and lowering has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Utility Model

[0004] In view of the above-mentioned defects of the prior art, the utility model provides a lifting and cable protection device for a submersible axial flow pump, and one of the purposes achieved is to improve the operation stability of the submersible axial flow pump.

[0005] Another purpose of the utility model is to improve the convenience of disassembly, hoisting and lowering of the submersible axial flow pump and reduce the safety risks brought by disassembly.

[0006] To achieve the above technical purposes, the utility model provides a lifting and cable protection device for a submersible axial flow pump, which includes a hoisting mechanism and an adjusting mechanism. The hoisting mechanism includes an I-shaped member, four wing plates arranged in a cross shape around the I-shaped member, and a waist plate fixedly connected to the bottom of the I-shaped member;

[0007] An upper lifting ear is arranged on the top part of the I-shaped member, a lower lifting ear is arranged at the bottom of the waist plate, and a plurality of pressing plates are arranged along the length direction of the waist plate. Each pressing plate is respectively connected to the waist plate through a fixing bolt, and the gap between the pressing plate and the waist plate can be adjusted by rotating the fixing bolt;

[0008] An adjusting mechanism is respectively arranged at the top of each wing plate.

[0009] Preferably, the adjusting mechanism is composed of a bolt structure and a nut structure connected by threads. The nut structure is fixedly connected to the wing plate, and an extrusion block is arranged at the outer end of the bolt structure;

[0010] Rotating the bolt structure in one of the directions can cause the extrusion block to move outward. When the extrusion block moves to a position where it can abut against the wellbore wall of the well, the hoisting mechanism can be fixed.

[0011] Preferably, the adjusting mechanism is composed of an adjusting nut, an adjusting bolt and two locking nuts. The adjusting nut is fixedly connected to the wing plate through a fixing block, and the two locking nuts are respectively fixedly connected to both ends of the adjusting nut;

[0012] The adjusting bolt is composed of two segments, a threaded rod and a round rod. One end of the round rod is connected to the end of the threaded rod away from the hoisting mechanism. The threaded rod is threadedly connected to the adjusting nut and the locking nuts. A placement hole is opened at the end of the round rod away from the threaded rod, and the extrusion block is fixedly embedded in the placement hole.

[0013] Preferably, webs are respectively fixedly connected to both sides of the I-shaped member, and upper openings are respectively formed in each web to form the upper lifting lugs;

[0014] Lifting plates are respectively fixedly connected to both sides of the bottom of the web, and lower openings are respectively formed in each lifting plate to form the lower lifting lugs.

[0015] Preferably, a plurality of pressing plates are uniformly arranged along the length direction of the waist plate. Threaded holes are respectively opened in each pressing plate, and threaded holes are respectively opened in the waist plate corresponding to the threaded holes in each pressing plate. A fixing bolt is commonly threadedly connected in the threaded hole in each pressing plate and the threaded hole in the corresponding pressing plate.

[0016] Advantages of the present utility model:

[0017] 1. Due to the above structural design of the present utility model, it is ensured that the cable is not affected by the water flow during the operation of the submersible axial flow pump and the shaking of the pump body is reduced, improving the operation stability of the submersible axial flow pump.

[0018] 2. When the submersible axial flow pump is overhauled, the submersible axial flow pump can be hoisted out of the wellbore, avoiding construction personnel from entering the wellbore and reducing the occurrence of safety accidents of falling from a height, thereby reducing the safety risk. Description of the drawings

[0019] Figure 1 is a front structural schematic diagram of the present utility model;

[0020] Figure 2 is a side structural schematic diagram of the present utility model;

[0021] Figure 3 is Figure 2 a sectional structural schematic diagram at A-A in

[0022] Figure 4 For Figure 2 the enlarged structural schematic diagram of the adjusting device in

[0023] In the figure: 1 I-shaped member, 2 wing plates, 3 web plates, 4 lifting plates, 5 pressure plates, 6 fixing bolts, 7 webs, 8 upper openings, 9 lower openings, 10 adjusting nuts, 11 adjusting bolts, 111 threaded rods, 112 round rods, 113 placing holes, 12 locking nuts, 13 extrusion blocks, 14 plug springs, 15 pins, 16 wellbore. Specific embodiments

[0024] The following will further illustrate the concept, specific structure and technical effects of the present invention in conjunction with the drawings to fully understand the purpose, features and effects of the present invention.

[0025] Embodiment:

[0026] As Figures 1-4 shown, a specific embodiment of the submersible axial flow pump lifting and cable protection device of the present invention includes a hoisting mechanism and an adjusting mechanism made of steel structure. Among them, the hoisting mechanism includes an I-shaped member 1, four wing plates 2 arranged in a cross shape around the I-shaped member 1, and a web plate 3 fixedly connected to the bottom of the I-shaped member 1, and the four wing plates 2 are respectively arranged at the center of the four sides of the I-shaped member 1.

[0027] An upper lifting ear is provided on the top part of the I-shaped member 1, a lower lifting ear is provided at the bottom of the web plate 3, and a plurality of pressure plates 5 are arranged along the length direction of the web plate 3. Each pressure plate 5 is respectively connected to the web plate 3 through a fixing bolt 6, and the gap between the pressure plate 5 and the web plate 3 can be adjusted by rotating the fixing bolt 6.

[0028] An adjusting mechanism is provided at the top of each wing plate 2. The adjusting mechanism is composed of a bolt structure and a nut structure connected by threads. The nut structure is fixedly connected to the wing plate 2, and an extrusion block 13 is provided at the outer end of the bolt structure. Rotating the bolt structure in one direction can make the extrusion block 13 move outward. When the extrusion block 13 moves to be able to abut against the well wall of the wellbore 16, the hoisting mechanism can be fixed.

[0029] The main innovation of the present invention lies in:

[0030] The cooperation of the hoisting mechanism and the adjusting mechanism ensures that the cable is not affected by the water flow during the operation of the submersible axial flow pump and reduces the shaking of the pump body, improves the operation stability of the submersible axial flow pump, and allows maintenance personnel to lift out the submersible axial flow pump for maintenance without entering the wellbore, reducing the safety risk.

[0031] Specifically, the adjusting mechanism is composed of an adjusting nut 10, an adjusting bolt 11 and two locking nuts 12. The adjusting nut 10 is fixedly connected to the wing plate 2 through a fixing block, and the two locking nuts 12 are respectively fixedly connected to both ends of the adjusting nut 10;

[0032] More specifically, the adjusting bolt 11 consists of two segments, a threaded rod 111 and a round rod 112. One end of the round rod 112 is connected to the end of the threaded rod 111 away from the hoisting mechanism. The threaded rod 111 is threadedly connected to the adjusting nut 10 and the locking nuts 12. A placement hole 113 is formed at the end of the round rod 112 away from the threaded rod 111. An extrusion block 13 is fixedly embedded in the placement hole 113. The extrusion block 13 is adhesively fixed in the placement hole 113, and the extrusion block 13 is a rubber block in the shape of a mushroom head.

[0033] Furthermore, webs 7 are respectively fixedly connected to both sides of the I-shaped member 1. Upper openings 8 are respectively formed in each web 7 to form upper lifting lugs; hoisting plates 4 are respectively fixedly connected to both sides of the bottom of the web 7. Lower openings 9 are respectively formed in each hoisting plate 4 to form lower lifting lugs. The hoisting plate 4 is a Z-shaped plate. An insertion spring 14 is passed through the two lower openings 9 and then a pin 15 is fixed, which can be used to hoist the submersible axial flow pump.

[0034] A number of pressing plates 5 are evenly arranged along the length direction of the waist plate 3. Threaded holes are respectively formed in each pressing plate 5. Threaded holes are respectively formed in the waist plate 3 corresponding to the threaded holes on each pressing plate 5. A fixing bolt 6 is commonly threadedly connected in the threaded holes on each pressing plate 5 and the threaded holes on the corresponding pressing plate 5. The cable of the submersible axial flow pump can be pressed between the pressing plate 5 and the waist plate 3, playing a role in fixing the cable.

[0035] The working principle and usage process of the present utility model:

[0036] After the submersible axial flow pump arrives at the site, the insertion spring 14 and the pin 15 are used in cooperation to connect the lower lifting lug and the pump lifting lug, and then the upper lifting lug and the lifting tool are connected. The cable is laid along the gap between the waist plate 3 and a number of pressing plates 5, and the fixing bolts 6 are sequentially tightened to make the pressing plate 5 press the cable tightly;

[0037] Subsequently, a hoisting device is used to lift and hoist the submersible axial flow pump, the hoisting mechanism and the adjusting mechanism together. After the submersible axial flow pump is installed at the bottom of the wellbore 16, by adjusting the inner wall adjusting device, that is, by rotating the threaded rod 111, the outer extrusion block 13 is completely pressed against the wall of the wellbore 16, and it is locked after being pressed tightly.

[0038] The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present utility model without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present utility model through logical analysis, reasoning, or limited experiments on the basis of the prior art shall fall within the protection scope determined by the claims.

Claims

1. A submersible axial flow pump lifting and cable protection device, including a lifting mechanism and an adjusting mechanism, characterized in that: The hoisting mechanism includes an I-shaped member, four wing plates arranged in a cross shape around the I-shaped member, and a waist plate fixedly connected to the bottom of the I-shaped member; An upper lifting ear is provided on the top part of the I-shaped piece, a lower lifting ear is provided at the bottom of the waist plate, and a plurality of pressing plates are arranged in the extension direction of the waist plate, each of the pressing plates is connected to the waist plate by a fixing bolt, and the gap between the pressing plate and the waist plate can be adjusted by rotating the fixing bolt; The top of each wing plate is respectively provided with an adjustment mechanism.

2. The submersible axial flow pump lifting and cable protection device according to claim 1 is characterized in that: The adjustment mechanism is composed of a bolt structure and a nut structure connected by threads, the nut structure is fixedly connected to the wing plate, and an extrusion block is arranged at the outer end of the bolt structure; Rotating the bolt structure in one direction can cause the extrusion block to move outward, and when the extrusion block moves to a position where it can abut against the wellbore wall, the hoisting mechanism can be fixed.

3. The submersible axial flow pump lifting and cable protection device according to claim 2 is characterized in that: The adjustment mechanism is composed of an adjustment nut, an adjustment bolt and two locking nuts. The adjustment nut is fixedly connected to the wing plate through a fixing block, and the two locking nuts are fixedly connected to the two ends of the adjustment nut respectively. The adjusting bolt is composed of two sections, a threaded rod and a round rod. One end of the round rod is connected to the end of the threaded rod away from the lifting mechanism, wherein the threaded rod is threadedly connected to the adjusting nut and the locking nut. A placement hole is provided at the end of the round rod away from the threaded rod, and the extrusion block is embedded and fixed in the placement hole.

4. The submersible axial flow pump lifting and cable protection device according to any one of claims 1 to 3, characterized in that: The two sides of the I-shaped piece are respectively fixedly connected with webs, and an upper opening is respectively provided on each of the webs to form the upper lifting ears; Both sides of the bottom of the web are respectively fixedly connected with hanging plates, and lower openings are respectively provided on each of the hanging plates to form the lower hanging ears.

5. The submersible axial flow pump lifting and cable protection device according to claim 4 is characterized in that: Several of the pressure plates are evenly arranged along the length direction of the waist plate, each of the pressure plates is provided with a threaded hole, and the waist plate is provided with threaded holes at positions corresponding to the threaded holes on each of the pressure plates, and the threaded holes on each of the pressure plates and the corresponding threaded holes on the pressure plates are threadedly connected with a fixing bolt.

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