Simple water pump fishing device

Abstract

The utility model discloses a simple water pump salvage device, which belongs to the technical field of water pump salvage and comprises a clamping cone barrel, and a clamping part matched with a shaft rod of a water pump is arranged on the inner side of the clamping cone barrel. The clamping cone barrel is placed into a well, the clamping part is clamped on a shaft rod of the water pump, the clamping cone barrel and the water pump are fished out of the well after the clamping cone barrel and the water pump are firmly clamped, and the water pump falling into the well can be fished out of the well conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump salvaging, in particular to a simple water pump salvaging device. Background Art

[0002] During the process of lowering or raising the pump in water source wells, geothermal wells, or other pumping wells, human error or corrosion from prolonged immersion in the well can cause the pump pipe, pump shaft, or pump body to break, causing the pump to fall into the well. If the break is in the pump pipe, it can be salvaged using a common male or female cone. However, if the break is in the pump shaft, the shaft material is not as hard as the pump pipe and the shaft diameter is small, making it impossible to salvage it using common tools such as male or female cones. Therefore, it is necessary to design a simple pump salvage device to salvage the pump with a broken shaft. Utility Model Content

[0003] In view of the above technical problems existing in the prior art, the utility model provides a simple water pump salvaging device, which can conveniently salvage a water pump with a broken shaft.

[0004] The utility model discloses a simple water pump salvaging device, which comprises a cone barrel. The inner side of the cone barrel is provided with a clamping part which matches the shaft rod of the water pump.

[0005] Preferably, locking balls are arranged at intervals on the side walls of the locking portion.

[0006] Preferably, the locking ball is a steel ball installed on the side wall of the locking portion.

[0007] Preferably, the longitudinal section of the engaging portion is conical or triangular; and the upper cross section of the engaging portion is smaller than the lower cross section.

[0008] Preferably, a drill rod is provided at the upper end of the cone barrel.

[0009] Preferably, the method further comprises an overshot tube arranged at the lower side of the cone barrel; a through hole is arranged in the overshot tube.

[0010] Preferably, the inner diameter of the through hole is larger than the outer diameter of the shaft.

[0011] Preferably, the inner diameter of the through hole is larger than the outer diameter of the water pump.

[0012] Preferably, the outer side wall of the overshot is provided with an alloy layer.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the cone barrel is lowered into the well, and the locking part is locked on the shaft of the water pump. After being locked, the cone barrel and the water pump are salvaged out of the well, making it convenient to salvage the water pump that has fallen into the well. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a simple water pump salvage device of the utility model;

[0015] Figure 2 It is a schematic diagram of the cone barrel;

[0016] Figure 3 This is a schematic diagram of the distribution of stuck balls.

[0017] Markings in the figure: 1 simple water pump salvage device, 2 salvage tube, 21 alloy layer, 3 cone barrel, 31 clamping part, 32 clamping ball, 4 drill pipe, 5 water pump, 51 shaft. DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0019] The present invention is described in further detail below with reference to the accompanying drawings:

[0020] A simple water pump salvage device 1, such as Figure 1-Figure 3 , including a cone barrel 3 , the inner side of which is provided with a snap-fit portion 31 that matches the shaft 51 of the water pump 5 .

[0021] Lower the cone barrel 3 into the well, and engage the engaging portion 31 on the broken shaft 51 of the water pump 5. After locking, salvage the cone barrel, the water pump and its shaft out of the well, making it easier to salvage the water pump that has fallen into the well.

[0022] like Figure 2 and Figure 3 A plurality of locking balls 32 are spaced apart on the sidewalls of the engaging portion 31. The engaging portion 31 has a tapered or triangular longitudinal cross-section. The upper cross-section of the engaging portion 31 is smaller than the lower cross-section, forming a shape with a larger lower portion and a smaller upper portion. The shape and structure of the locking balls 32 and the engaging portion 31 facilitate secure locking of the shaft 51.

[0023] The sleeve can be processed into two tapered parts, which are then overlapped to form a cone barrel 3. Holes are opened on the sleeve inside the cone barrel 3 to install several clamping balls 32, which can be steel balls.

[0024] like Figure 1 The upper end of the cone barrel 3 is provided with a drill rod 4. Through the rigid drill rod, the cone barrel 3 is lifted, lowered and rotated.

[0025] An overshot 2 is disposed on the underside of the cone barrel 3; within the overshot 2 is a through-hole. The inner diameter of the through-hole is larger than the outer diameter of the shaft 51, allowing the shaft 51 to pass through the through-hole and engage within the engaging portion 31. The inner diameter of the through-hole can also be larger than the outer diameter of the water pump 5, allowing the shaft 51 to be inserted into the engaging portion 31 even if it is shorter. The outer wall of the overshot 2 is provided with an alloy layer 21 for grinding or milling the wellbore wall. The alloy layer is welded to the outer walls of the overshot 2, and the overshot 2 is rotated for milling in the open hole section.

[0026] The overshot tube 2 can be used for milling a water pump that has fallen into a well. It can be processed with seamless casing or oil casing commonly used in well sites. The outer diameter of the overshot tube 2 is smaller than the inner diameter of the wellhead and larger than the diameter of the water pump.

[0027] In a specific salvage operation, the steps are as follows:

[0028] The first step: when a water pump falls into a well, the remaining pump pipe is pulled out of the wellhead. If it is found that the water pump is broken at the pump shaft, the water pump is salvaged using the simple water pump salvaging device of the present invention.

[0029] Step 2: Install the cone barrel 3 on the drill pipe 4 and lower it into the well, rotating it while lowering it, so that the surrounding well wall can be polished smooth through the alloy layer on the outer wall of the overshot, and the cable in the well can be polished flat.

[0030] Step 3: Slowly lower the water pump shaft into the locking part of the cone barrel, continue to press down, use the clamping ball (steel ball) to squeeze the shaft firmly, and then pull the drill to salvage the water pump out of the well.

[0031] The utility model has a simple structure and can be used to salvage a water pump that has fallen into a well simply, conveniently and quickly, especially a water pump that is broken at the shaft, thereby solving the problem that the water pump with a broken shaft is difficult to salvage.

[0032] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A simple water pump salvage device, characterized in that: The invention comprises a cone barrel (3), wherein a clamping portion (31) matching a shaft (51) of a water pump (5) is provided on the inner side of the cone barrel (3), and a plurality of clamping balls (32) are provided at intervals on the side wall of the clamping portion (31); the longitudinal section of the clamping portion (31) is conical or triangular; and the upper side cross section of the clamping portion (31) is smaller than the lower side cross section.

2. The simple water pump salvaging device according to claim 1, characterized in that: The clamping ball (32) is a steel ball installed on the side wall of the clamping portion (31).

3. The simple water pump salvaging device according to claim 1, characterized in that: A drill rod (4) is provided at the upper end of the cone barrel (3).

4. The simple water pump salvaging device according to claim 1, characterized in that: It also includes an overshot tube (2) arranged on the lower side of the cone barrel (3); a through hole is provided in the overshot tube (2).

5. The simple water pump salvaging device according to claim 4, characterized in that: The inner diameter of the through hole is larger than the outer diameter of the shaft (51).

6. The simple water pump salvaging device according to claim 4, characterized in that: The inner diameter of the through hole is larger than the outer diameter of the water pump (5).

7. The simple water pump salvaging device according to claim 4, characterized in that: The outer side wall of the overshot (2) is provided with an alloy layer (21).

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