Portable sea water pump impeller dismounting tool

Abstract

The utility model discloses a portable sea water pump impeller dismounting tool which comprises a grabbing frame and a puller mechanism, the grabbing frame comprises a transverse long plate and a vertical threaded cylinder arranged in the center of the transverse long plate, and a threaded groove is formed in the threaded cylinder; the puller mechanism comprises a screwing rod, a pull rod and a positioning adjusting mechanism, the screwing rod is sleeved with the threaded cylinder in a threaded connection mode, and a transversely-placed screwing handle is arranged at the top of the screwing rod; the pull rods are installed on the two sides of the screwing rod and are clamped and adjusted through the positioning adjusting mechanism. One surface of the pull rod is designed into an inclined plane, and the inclined plane is gradually shrunk from the upper part to the pull hook, so that the upper part of the pull rod can be in contact with the outer hub of the rubber impeller while the pull hook clamps the impeller, double clamping of the pull rod and the pull hook is formed during drawing, and the anti-skid capability during drawing is improved; the outer side of the pull rod is straight from the upper end to the drag hook, meanwhile, the drag hook is narrower than the pull rod, the pull rod and the drag hook do not occupy large transverse space, and a drawing piece can be inserted into the narrow space of the impeller conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical disassembly tools, and in particular relates to a portable seawater pump impeller disassembly tool. Background Art

[0002] The work priorities of the waterway unit include waterway inspections and water depth measurements. Speedboats are used frequently, and the engine rooms of speedboats require more annual maintenance. In addition, the small engine room environment of the boat is not conducive to maintenance by the engineer. The main and auxiliary engines in the engine room are compactly arranged, which is not conducive to the disassembly and assembly of accessories, especially the replacement of seawater pump impellers. Replacing the seawater pump impeller often requires the removal of the pump body together, which is time-consuming and labor-intensive, and forced disassembly can easily scratch the impeller.

[0003] Currently, there are pulling tools for disassembling and assembling seawater pump impellers on the market, most of which are pulling claws with barbed hooks. For example, publication number CN213498928U discloses an adjustable hydraulic pulling tool.

[0004] The space where the seawater pump impeller is located is small, and the pulling claw can only clamp the impeller through the barb and then disassemble and assemble it. However, the pulling claw rod and the barb itself occupy a certain horizontal space, and the pulling claw is difficult to fully extend into the narrow side space of the impeller outer hub; and the anti-slip ability is weak because the outer wall of the seawater pump impeller is only clamped by the barb. Utility Model Content

[0005] The utility model provides a convenient seawater pump impeller disassembly tool, which forms a double clamping of the pull rod and the pull hook during pulling, thereby improving the anti-slip ability during pulling; the outer side of the pull rod is designed to be straight from the upper end to the pull hook, and the width of the pull hook is smaller than the width of the pull rod. The pull rod and the pull hook will not occupy a large horizontal space, which is conducive to inserting the pulling piece into the narrow space of the impeller, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable seawater pump impeller disassembly tool, comprising a grab frame and a pulling mechanism, the grab frame comprising a transverse long plate and a vertical threaded barrel arranged in the center of the transverse long plate, a threaded groove being provided in the threaded barrel; the pulling mechanism comprising a twisting rod, a pull rod and a positioning adjustment mechanism, the twisting rod being threadedly connected and sleeved in the threaded barrel, a horizontal twisting handle being provided on the top of the twisting rod; the pull rod being installed on both sides of the twisting rod and being clamped and adjusted by the positioning adjustment mechanism.

[0007] Preferably, the positioning adjustment mechanism includes two positioning adjustment screws, which are respectively installed on the mounting parts located below the two ends of the horizontal long plate. The horizontal long plate is provided with grooves located on both sides of the threaded barrel. The top of the pull rod is located in the groove. The top of the pull rod is hinged to the grab frame through a hinge shaft, and the end of the positioning adjustment screw corresponds to the upper part of the pull rod. The outer end of the positioning adjustment screw is provided with a screwing part.

[0008] Preferably, the transverse long plate, the threaded cylinder and the mounting portion are designed to be integrally formed.

[0009] Preferably, a hook is provided at the bottom end of the pull rod, and a surface between the upper part of the pull rod and the hook close to the twisting rod is designed as an inclined surface, and the inclined surface gradually shrinks from the upper part toward the hook, and the hook protrudes from the inclined surface toward the twisting rod.

[0010] Preferably, the pull rod is provided with a plurality of spaced grooves along the upper end of the inclined surface.

[0011] Preferably, the outer side of the pull rod is designed to be straight from the upper end to the pull hook.

[0012] Preferably, the width of the draw hook is smaller than the width of the draw rod.

[0013] Preferably, the transversely long plate forms a flat surface on the bottom surface.

[0014] Preferably, the bottom end of the pull rod is provided with a wear-resistant head.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. One side of the pull rod is designed with an inclined surface, and the inclined surface gradually shrinks from the upper part toward the pull hook. When the pull hook clamps the impeller, the upper part of the pull rod can also contact the outer hub of the rubber impeller, forming a double clamping of the pull rod and the pull hook during pulling, thereby improving the anti-slip ability during pulling.

[0017] 2. The outer side of the pull rod is designed to be straight from the upper end to the hook. At the same time, the width of the hook is smaller than the width of the pull rod. The pull rod and the hook will not occupy a large horizontal space, which is conducive to inserting the pull piece into the narrow space of the impeller.

[0018] 3. The horizontal long plate forms a flat surface at the bottom, and the horizontal long plate is in full and close contact with the impeller end face, further optimizing the space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 It is a partial top view structural diagram of the utility model;

[0021] Figure 3 This is a schematic diagram of the pull rod and hook structure of the utility model;

[0022] Figure 4 for Figure 3 A schematic diagram of the enlarged structure.

[0023] In the figure: 1. Horizontal long plate; 2. Threaded cylinder; 3. Twisting rod; 4. Pull rod; 5. Twisting handle; 6. Positioning adjustment screw; 7. Mounting part; 8. Groove; 9. Hinge shaft; 10. Twisting part; 11. Pull hook; 12. Groove; 13. Wear-resistant head. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 are within the scope of protection of the present invention.

[0025] See also Figure 1-4 The utility model provides a convenient seawater pump impeller disassembly tool, including a grab frame and a pulling code mechanism, the grab frame includes a horizontal long plate 1 and a vertical threaded barrel 2 arranged in the center of the horizontal long plate 1, and a threaded groove is provided in the threaded barrel 2; the pulling code mechanism includes a twisting rod 3, a pull rod 4 and a positioning adjustment mechanism, the twisting rod 3 is threadedly connected and sleeved in the threaded barrel 2, and a horizontal twisting handle 5 is provided on the top of the twisting rod 3; the pull rod 4 is installed on both sides of the twisting rod 3 and is clamped and adjusted by the positioning adjustment mechanism; when in use, the disassembly tool is placed in the pump body, and the two pull rods 4 are extended into the side gap of the impeller in the pump body, and the seawater pump The rubber impeller contains multiple vertical gaps. By extending the pull rod 4 into the side gap of the rubber impeller, and then making the bottom surface of the horizontal long plate 1 press against the top surface of the impeller, and then the positioning adjustment mechanism adjusts the pull rods 4 on both sides. Since the pull rod 4 and the horizontal long plate 1 are hinged, the pull rod 4 will clamp the outer hub of the seawater pump rubber impeller inward. After clamping, the impeller shaft is supported by the twisting rod 3, and then the twisting rod 3 is rotated by twisting the handle 5. Due to the threaded cooperation between the twisting rod 3 and the threaded barrel 2, the horizontal long plate 1, the pull rod 4 and the clamped impeller will be pulled upward for disassembly; the design of the straight pull rod will not take up a large horizontal space, which is conducive to the insertion of the puller into the narrow space of the impeller.

[0026] Specifically, the positioning adjustment mechanism includes two positioning adjustment screws 6, and the two positioning adjustment screws 6 are respectively installed on the mounting parts 7 located below the two ends of the horizontal long plate 1. The horizontal long plate 1 is provided with grooves 8 located on both sides of the threaded tube 2, and the top of the pull rod 4 is located in the groove 8. The top of the pull rod 4 is hinged to the grab frame through a hinge shaft 9, and the end of the positioning adjustment screw 6 corresponds to the upper part of the pull rod 4. The outer end of the positioning adjustment screw 6 is provided with a twisting part 10; in this embodiment, the twisting parts 10 on both sides are adjusted to rotate the two positioning adjustment screws 6, so that the positioning adjustment screws 6 support the pull rods 4 on both sides. Since the pull rod 4 and the horizontal long plate 1 are hinged, the bottom end of the pull rod 4 will be clamped inward around the hinge shaft 9 to clamp the outer hub of the rubber impeller of the seawater pump.

[0027] Specifically, the transverse long plate 1, the threaded barrel 2, and the mounting portion 7 are designed to be integrally formed. In this embodiment, this facilitates integrated forming, improves efficiency, and also improves the stability of the overall connection.

[0028] Specifically, a hook 11 is provided at the bottom end of the pull rod 4, and a side between the upper part of the pull rod 4 and the hook 11 close to the twisting rod 3 is designed as a slope, and the slope gradually shrinks from the upper part toward the hook 11, and the hook 11 protrudes the slope toward the twisting rod 3; in this embodiment, since a side between the upper part of the pull rod 4 and the hook 11 close to the twisting rod 3 is designed as a slope, and the slope gradually shrinks from the upper part toward the hook 11, the upper part of the pull rod 4 can also contact the outer hub of the rubber impeller, forming a double clamping of the pull rod 4 and the hook 11 during pulling, thereby improving the anti-slip ability during pulling.

[0029] Specifically, the pull rod 4 is provided with a plurality of spaced grooves 12 along the upper end of the inclined surface; in this embodiment, since the impeller of the seawater pump is a rubber impeller with a certain elasticity, by providing a plurality of spaced grooves 12 on the inclined surface, the outer hub of the rubber impeller can be tightly attached to part of the grooves 12 when clamping, forming a multi-point clamping of the plurality of grooves 12 on the basis of the clamping of the pull rod 4, thereby further improving the anti-slip ability during pulling.

[0030] Specifically, the outer side of the pull rod 4 is designed to be straight from the upper end to the pull hook 11; in this embodiment, the outer side of the pull rod 4 is designed to be straight from the upper end to the pull hook 11, which is conducive to the insertion of the pull rod 4 and the pull hook 11 into the narrow space of the impeller.

[0031] Specifically, the width of the hook 11 is smaller than the width of the pull rod 4. In this embodiment, since the width of the hook 11 is smaller than the width of the pull rod 4, the pull rod 4 and the hook 11 will not occupy a large horizontal space, which is conducive to inserting the puller into the narrow space of the impeller.

[0032] Specifically, the transverse long plate 1 forms a flat surface at the bottom; in this embodiment, it is beneficial for the transverse long plate 1 to be in close contact with the end face of the impeller, thereby further optimizing the space.

[0033] Specifically, a wear-resistant head 13 is provided at the bottom end of the pull rod 4. In this embodiment, since there is greater friction between the pull rod 4 and the impeller shaft during pulling, the wear-resistant head 13 is provided to improve durability.

[0034] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process is described in detail below.

[0035] Working principle: When in use, place the disassembly tool into the pump body, and extend the two pull rods 4 into the side gap of the impeller in the pump body. The rubber impeller of the seawater pump contains multiple vertical gaps. By extending the pull rod 4 into the side gap of the rubber impeller, and then making the bottom surface of the horizontal long plate 1 against the top surface of the impeller, and then adjusting the screwing parts 10 on both sides to rotate the two positioning adjustment screws 6, so that the positioning adjustment screws 6 can support the pull rods 4 on both sides. Since the pull rod 4 and the horizontal long plate 1 are hinged, the bottom end of the pull rod 4 will be clamped inward around the hinge shaft 9 to clamp the outer hub of the rubber impeller of the seawater pump. Since the upper part of the pull rod 4 is close to the hook 11, One side of the twisting rod 3 is designed as a slope, and the slope gradually shrinks from the top toward the hook 11, so that the upper part of the pull rod 4 can also contact the outer hub of the rubber impeller. After clamping, the wear-resistant head 13 of the twisting rod 3 is used to support the impeller shaft, and then the twisting rod 3 is rotated by twisting the handle 5. Due to the threaded cooperation between the twisting rod 3 and the threaded barrel 2, the horizontal long plate 1, the pull rod 4 and the clamped impeller will be pulled upward for disassembly; since the outer side of the pull rod 4 is straight from the upper end to the hook 11, and since the width of the hook 11 is smaller than the width of the pull rod 4, the pull rod 4 and the hook 11 will not occupy a large horizontal space, which is conducive to the insertion of the pulling part into the narrow space of the impeller.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable seawater pump impeller removal tool, comprising a grab frame and a pull mechanism, characterized in that: The grab frame comprises a transverse long plate (1) and a vertical threaded barrel (2) arranged at the center of the transverse long plate (1), wherein a threaded groove is provided in the threaded barrel (2); the pulling mechanism comprises a twisting rod (3), a pulling rod (4) and a positioning adjustment mechanism, wherein the twisting rod (3) is threadedly connected and sleeved in the threaded barrel (2), and a horizontal twisting handle (5) is provided on the top of the twisting rod (3); the pulling rod (4) is installed on both sides of the twisting rod (3) and is clamped and adjusted by the positioning adjustment mechanism; The positioning adjustment mechanism includes two positioning adjustment screws (6), and the two positioning adjustment screws (6) are respectively installed on the mounting parts (7) located below the two ends of the horizontal long plate (1). The horizontal long plate (1) is provided with grooves (8) located on both sides of the threaded cylinder (2). The top of the pull rod (4) is located in the groove (8). The top of the pull rod (4) is hinged to the grab frame through a hinge shaft (9), and the end of the positioning adjustment screw (6) corresponds to the upper part of the pull rod (4). The outer end of the positioning adjustment screw (6) is provided with a twisting part (10).

2. A portable seawater pump impeller removal tool according to claim 1, characterized in that: The transverse long plate (1), the threaded barrel (2), and the mounting portion (7) are designed to be integrally formed.

3. The portable seawater pump impeller removal tool according to claim 1, characterized in that: A hook (11) is provided at the bottom end of the pull rod (4), and a surface between the upper part of the pull rod (4) and the hook (11) close to the twisting rod (3) is designed as an inclined surface, and the inclined surface gradually shrinks from the upper part toward the hook (11), and the hook (11) protrudes from the inclined surface toward the twisting rod (3).

4. The portable seawater pump impeller removal tool according to claim 3, characterized in that: The pull rod (4) is provided with a plurality of spaced grooves (12) along the upper end of the inclined surface.

5. The portable seawater pump impeller removal tool according to claim 3, characterized in that: The outer side of the pull rod (4) is designed to be straight from the upper end to the pull hook (11).

6. The portable seawater pump impeller removal tool according to claim 5, characterized in that: The width of the draw hook (11) is smaller than the width of the draw rod (4).

7. The portable seawater pump impeller removal tool according to claim 1, characterized in that: The transverse long plate (1) forms a flat surface on the bottom surface.

8. The portable seawater pump impeller removal tool according to claim 1, characterized in that: The bottom end of the pull rod (4) is provided with a wear-resistant head (13).

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