Water pump impeller hub

Abstract

The utility model discloses a water pump impeller hub, which relates to the technical field of water pumps and comprises a main shaft, a mounting mechanism is fixedly mounted at the lower end of the main shaft, a mounting disc is fixedly mounted at the bottom of the main shaft, and an impeller body is mounted at the lower end of the main shaft through the mounting mechanism; the mounting mechanism comprises a cross, the cross is fixedly mounted at the lower end of the spindle, sliding grooves are formed in the ends of the cross, sliding plates are slidably connected to the inner sides of the sliding grooves, and the tops of the sliding plates are connected with the bottom of the impeller body. By the adoption of the structure, the button handle with the anti-skid protrusions is twisted to drive the connecting rod and the rotating disc, the limiting rod is rotated outwards, the cambered surface is separated from the arc-shaped hole, the sliding plate is pulled out when the sliding plate is out of limit, dismounting is convenient, and when the motor runs, the impeller can be loosened under the water flow thrust and the rotating thrust of the button handle, and the impeller is not damaged. Therefore, disassembly and assembly are facilitated, and stability is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of water pump, especially relate to a water pump impeller hub. BACKGROUND

[0002] Water pump is a kind of mechanical equipment for conveying liquid, and it is widely used in many fields, and its core function is to extract and pressurize water or other liquid from one place to another by mechanical power, generally, the impeller is driven by motor and other power sources to rotate at high speed, and the impeller rotates to work on the liquid in the pump cavity, so that the kinetic energy of the liquid is increased, and enough pressure is generated to make the liquid overcome the resistance of the pipeline and flow stably along the pipeline.

[0003] The Chinese patent with publication number "CN210196034U" discloses an anti-sand and anti-cavitation impeller and submersible pump, which solves the various problems caused by the direct influence of sand and cavitation on the impeller in the prior art, and adopts the technical scheme: including a hub, a plurality of blades arranged on the hub, characterized in that a rubber sleeve is sleeved on each blade. Its effect: the rubber sleeve is sleeved on the blade, the rubber sleeve is tightly attached to the surface of the blade by using the elasticity of the rubber, and the anti-sand and anti-cavitation ability of the blade is improved by the high wear resistance and anti-bubble burst performance of the rubber material, so as to achieve the purpose of improving the anti-sand and anti-cavitation of the impeller.

[0004] However, the hub and the impeller of the above-mentioned water pump are integrated, and when the impeller is damaged during application, the hub and the plurality of impeller blades usually need to be replaced together, obviously, once a blade in the impeller is damaged or corroded, the entire impeller structure needs to be replaced, which is inconvenient to maintain and has high overall cost, therefore, it needs to be improved and designed. UTILITY MODEL CONTENTS

[0005] In view of the problems mentioned in the background art, the utility model aims to provide a water pump impeller hub to solve the problem of inconvenient disassembly and maintenance of the existing impeller hub.

[0006] The above technical purpose of the utility model is realized by the following technical scheme:

[0007] A water pump impeller hub, comprising a main shaft, a mounting mechanism is fixedly installed at the lower end of the main shaft, an installation disc is fixedly installed at the bottom of the main shaft, and an impeller body is installed at the lower end of the main shaft through the mounting mechanism.

[0008] The mounting mechanism comprises a cross frame fixedly installed at the lower end of the main shaft, each end of the cross frame is provided with a sliding groove, the inner side of the sliding groove is slidably connected with a sliding plate, the top of the sliding plate is connected with the bottom of the impeller body, the inner side of the impeller body is connected with the outer surface of the main shaft, the bottom of the cross frame is fixedly installed with limiting assemblies at equal intervals in a ring shape, and the sliding plate is installed in the inner side of the sliding groove through the limiting assemblies.

[0009] As a preferred technical scheme, the mounting disc is circular, and the top of the mounting disc is provided with mounting holes at equal intervals.

[0010] As a preferred technical scheme, the inner cavity of the sliding groove is provided with a convex shape in the whole cross section, and the whole cross section of the sliding plate is also provided with a convex shape.

[0011] As a preferred technical scheme, the outer side of the cross frame is fixedly installed with a supporting ring body, and the inner side of the supporting ring body is connected with each end of the outer side of the cross frame.

[0012] As a preferred technical scheme, the mounting hole is provided as a countersunk hole, and the outer corners of the mounting disc, the impeller body, the cross frame and the supporting ring body are provided as circular arcs.

[0013] As a preferred technical scheme, the limiting assembly comprises a ring frame and an arc-shaped hole, the ring frame is fixedly installed at the bottom of the cross frame in a ring shape at equal intervals, the inner side of the ring frame is fixedly connected with a torsion spring, the inner end of the sliding block is provided with the arc-shaped hole, the outer end of the torsion spring is fixedly connected with a rotating disc, the rotating disc is rotatably connected with the inner side of the ring frame, the outer side of the rotating disc is fixedly installed with a limiting rod, the outer end of the limiting rod is provided as a circular arc, the arc-shaped end of the limiting rod is provided as a concentric circle with the torsion spring, the whole cross section of the arc-shaped hole is also provided as a concentric circle with the torsion spring, and the arc-shaped end of the limiting rod is inserted into the inner side of the arc-shaped hole.

[0014] As a preferred technical scheme, one side of the rotating disc in the ring frame is fixedly installed with a connecting rod, the end of the connecting rod is fixedly installed with an adjusting knob handle penetrating through the ring frame, and the outer surface of the adjusting knob handle is fixedly connected with anti-skid protrusions at equal intervals.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] Firstly, the torsion spring drives the rotating disc to rotate, the limiting rod rotates, the arc-shaped end of the limiting rod, the arc-shaped hole and the torsion spring are designed as concentric circles, the limiting rod is inserted into the arc-shaped hole and cooperates with the arc-shaped rod to fix the sliding plate, the impeller body is stably installed, finally, the mounting disc is installed on the water pump motor through the mounting hole and the bolt, the whole process is free of welding, and the device is convenient and efficient,

[0017] Second, by twisting the knob with anti-skid convex, it drives the connecting rod, the rotating disc, makes the limiting rod rotate outward, the arc surface separates from the arc hole, the slide plate loses the limit and can be pulled out, which is convenient for disassembly, and when the motor operates, the impeller is pushed by the water flow, the arc limiting rod and the arc hole can only be loosened under the rotation of the rotating knob, and the normal operation is locked, which is beneficial to disassembly and stable. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the utility model;

[0019] Figure 2 is a top view structural schematic diagram of the utility model;

[0020] Figure 3 is a bottom view structural schematic diagram of the utility model;

[0021] Figure 4 is a disassembly state structural schematic diagram of the utility model;

[0022] Figure 5 is a mounting mechanism structural schematic diagram of the utility model;

[0023] Figure 6 is the A place of the utility model Figure 5 enlarged structural schematic diagram.

[0024] Reference signs: 1, main shaft;2, mounting mechanism;21, cross;22, sliding groove;23, slide plate;24, supporting ring body;25, limiting assembly;251, ring stand;252, arc hole;253, torsional spring;254, rotating disc;255, limiting rod;256, connecting rod;257, knob;258, anti-skid convex;3, mounting disc;4, impeller body;5, mounting hole. DETAILED DESCRIPTION

[0025] EMBODIMENT

[0026] Reference Figures 1 to 6 , a water pump impeller hub of the embodiment, including main shaft 1, the lower end of main shaft 1 is fixedly installed with mounting mechanism 2, the bottom of main shaft 1 is fixedly installed with mounting disc 3, the lower end of main shaft 1 is installed with impeller body 4 through mounting mechanism 2;

[0027] The mounting mechanism 2 comprises a cross 21 fixedly mounted at the lower end of the main shaft 1, each end of the cross 21 is provided with a sliding groove 22, the inner side of the sliding groove 22 is slidably connected with a sliding plate 23, the top of the sliding plate 23 is connected with the bottom of the impeller body 4, the inner side of the impeller body 4 is connected with the outer surface of the main shaft 1, the bottom of the cross 21 is fixedly installed with a limiting assembly 25 arranged at equal intervals in a ring shape, the sliding plate 23 is installed in the inner side of the sliding groove 22 through the limiting assembly 25, the cross 21 in the mounting mechanism 2 is firmly fixed at the lower end of the main shaft 1, the sliding groove 22 provided at each end of the cross 21 can be precisely connected with the sliding plate 23, the sliding plate 23 can smoothly slide in the sliding groove 22, the top of the sliding plate 23 is connected with the bottom of the impeller body 4, so that the impeller body 4 is tightly connected with the outer surface of the main shaft 1 after installation, the stability of the impeller body 4 during high-speed rotation is ensured, and displacement deviation is not prone to occur, in addition, the limiting assembly 25 arranged at equal intervals in a ring shape at the bottom of the cross 21 is very important, which stably installs the sliding plate 23 in the sliding groove 22, during installation, the sliding plate 23 is inserted into the sliding groove 22, corresponding components are sequentially connected according to the design, the sliding plate 23 can be quickly fixed in place, the complicated welding process is saved, the operation is simple and convenient, if the impeller body 4 needs to be disassembled later, only the knob 257 connected with the limiting assembly 25 needs to be rotated, a component chain reaction is caused, the sliding plate 23 can be smoothly pulled out, the impeller body 4 can be quickly disassembled, and when the motor drives the impeller body 4 to rotate, the limiting assembly 25 can always ensure that the impeller body 4 is firmly connected with the main shaft 1.

[0028] With reference to Figures 1-2 , the mounting disc 3 is circular, the top of the mounting disc 3 is provided with mounting holes 5 arranged at equal intervals, the inner cavity of the sliding groove 22 is provided with a convex shape, the whole cross section of the sliding plate 23 is also provided with a convex shape, the mounting holes 5 arranged at equal intervals are regularly arranged, which provides precise fixing points for connecting the water pump motor, is beneficial to stable connection, the inner cavity of the sliding groove 22 and the sliding plate 23 are both provided with a convex shape, and the two are tightly fitted, the sliding plate 23 is smoothly inserted during installation and does not shake, and the sliding plate 23 can be stably arranged in the sliding groove 22 during operation.

[0029] With reference to Figures 1-4 , the outer side of the cross 21 is fixedly provided with a supporting ring body 24, the inner side of the supporting ring body 24 is connected with each end of the outer side of the cross 21, the mounting holes 5 are provided with countersunk holes, the outer edges of the mounting disc 3, the impeller body 4, the cross 21 and the supporting ring body are all provided with arc shapes, the outer side of the cross 21 is provided with the supporting ring body 24 connected with the end, the rigidity of the whole is strengthened, the components are closely cooperated and are not prone to deformation when the impeller body 4 rotates at high speed and is impacted by water flow, the countersunk holes of the mounting disc 3 are convenient for installation, the bolt head is embedded therein, scraping is avoided, the connection surface is ensured to be flat, water flow resistance and abrasion are reduced, in addition, the outer edges of the components are provided with arc shapes, stress concentration is reduced, and the risk of damage to the components is reduced.

[0030] With reference to Figures 1-6 , the limiting assembly 25 comprises a ring frame 251 and an arc-shaped hole 252, the ring frame 251 is fixedly installed at the bottom of the cross frame 21 in a ring shape at equal intervals, the inner side of the ring frame 251 is fixedly connected with a torsion spring 253, the arc-shaped hole 252 is opened at the inner end of the sliding block, the outer end of the torsion spring 253 is fixedly connected with a rotating disc 254, the rotating disc 254 is rotationally connected to the inner side of the ring frame 251, the outer side of the rotating disc 254 is fixedly installed with a limiting rod 255, the outer end of the limiting rod 255 is arranged in a circular arc shape, the outer end arc-shaped part of the limiting rod 255 is arranged in a concentric circle with the torsion spring 253, the overall section of the arc-shaped hole 252 is also arranged in a concentric circle with the torsion spring 253, the outer end arc-shaped end part of the limiting rod 255 is inserted into the inner side of the arc-shaped hole 252, by inserting the sliding plate 23 into the sliding groove 22, the torsion spring 253 drives the rotating disc 254 to rotate, the limiting rod 255 rotates accordingly, and the outer end arc-shaped end part thereof is smoothly inserted into the inner side of the arc-shaped hole 252, so that the sliding plate 23 is quickly and accurately limited, and the impeller body 4 is stabilized, in the operation of the water pump, the impeller body 4 is impacted by high-speed water flow, even if the force is complex, due to the concentric circle structure, the limiting rod 255 is tightly matched with the arc-shaped hole 252, which effectively prevents the impeller body 4 from loosening and moving, and ensures the stable operation of the hub system, when disassembling, the torsion spring 253 is reversely operated, and the limiting rod 255 can be easily removed, which is convenient and efficient.

[0031] With reference to Figure 6 , the rotating disc 254 is fixedly installed with a connecting rod 256 on one side in the ring frame 251, the connecting rod 256 is fixedly installed with an adjusting knob handle 257 at the end portion penetrating through the ring frame 251, the outer surface of the adjusting knob handle 257 is fixedly connected with anti-skid protrusions 258 at equal intervals, and the connecting rod 256 fixed on one side of the rotating disc 254 is connected with the adjusting knob handle 257 penetrating through the ring frame 251, which constitutes a convenient control link, when the impeller body 4 needs to be disassembled, the operator holds the adjusting knob handle 257 with the hand, the anti-skid protrusions 258 on the outer surface of the adjusting knob handle 257 can effectively increase the friction, so that the hand force is more stable, and slipping is avoided, the knob handle 257 is rotated, the force is accurately transmitted to the rotating disc 254 through the connecting rod 256, the rotating disc 254 is reversely rotated, the outer end arc-shaped part of the limiting rod 255 is smoothly separated from the arc-shaped hole 252, the limiting of the sliding plate 23 is released, and then the sliding plate 23 can be easily pulled out, the impeller body 4 is conveniently disassembled, and the convenience and efficiency of the disassembly operation are greatly improved.

[0032] Principle and advantages: The device is provided with mounting mechanism 2, in use, the sliding plate 23 is inserted into the cross 21 of the sliding groove 22 inside, the sliding plate 23 is immersed in the sliding groove 22, the torsional spring 253 plays a role, generates elastic force to drive the rotating disc 254 to rotate, the rotating disc 254 is linked with the limiting rod 255 to rotate, the arc-shaped end of the limiting rod 255 is concentric with the torsional spring 253, the arc-shaped hole 252 is the same, which makes the limiting rod 255 can be smoothly inserted into the arc-shaped hole 252, relying on the arc-shaped hole 252 and the arc-shaped rod to restrict each other, the sliding plate 23 is stably fixed in the sliding groove 22, and the impeller body 4 is firmly mounted on the surface of the main shaft 1, after installation, the mounting hole 5 on the mounting disc 3 is matched with the bolt, the device can be installed on the water pump motor, the whole process does not need welding, and the operation is convenient,

[0033] The device is provided with limiting component 25, in use, if the impeller body 4 is disassembled, the knob 257 is twisted, the outer surface of the knob 257 is provided with anti-skid lines at equal intervals, which is convenient for stable force to drive the connecting rod 256 to rotate, the outer end of the connecting rod 256 is connected with the rotating disc 254, and the rotating disc 254 is rotated to rotate the limiting rod 255 outside the rotating disc 254, the outer end arc surface of the limiting rod 255 can be separated from the arc-shaped hole 252, the sliding plate 23 is not limited, and can be taken out from the sliding groove 22, the impeller body 4 is quickly disassembled, and when the motor drives the main shaft 1 and the impeller body 4 to rotate, the impeller body 4 is subjected to the transverse thrust of water flow, the arc-shaped limiting rod 255 end and the arc-shaped hole 252 are only separated under the rotation thrust, and the stress generated by the motor driving the main shaft 1 to rotate will make the limiting rod 255 and the arc-shaped hole 252 be stuck, so that the device is not only convenient to disassemble, but also has good stability.

Claims

1. A water pump impeller hub comprising a main shaft, characterized by: The lower end of the main shaft is fixedly installed with a mounting mechanism, the bottom of the main shaft is fixedly installed with a mounting disc, and the lower end of the main shaft is installed with an impeller body through the mounting mechanism. The mounting mechanism comprises a cross, each end of the cross is provided with a sliding groove, the inner side of the sliding groove is slidably connected with a sliding plate, the top of the sliding plate is connected with the bottom of the impeller body, the inner side of the impeller body is connected with the outer surface of the main shaft, the bottom of the cross is fixedly installed with a limiting assembly in a ring shape at equal intervals, and the sliding plate is installed in the inner side of the sliding groove through the limiting assembly.

2. A water pump impeller hub according to claim 1, characterized in that: The mounting disc is circular, and the top of the mounting disc is provided with mounting holes at equal intervals.

3. A water pump impeller hub according to claim 2, wherein: The inner cavity of the sliding groove is provided in a convex shape, and the overall cross section of the sliding plate is also provided in a convex shape.

4. A water pump impeller hub according to claim 3, wherein: The outer side of the cross is fixedly installed with a supporting ring body, and the inner side of the supporting ring body is connected with each end of the outer side of the cross.

5. A water pump impeller hub according to claim 4, wherein: The mounting holes are provided in a countersunk shape, and the outer corners of the mounting disc, the impeller body, the cross and the supporting ring body are provided in a circular arc shape.

6. A water pump impeller hub according to claim 1, wherein: The limiting assembly comprises a ring frame and an arc-shaped hole, the ring frame is fixedly installed on the bottom of the cross in a ring shape at equal intervals, the inner side of the ring frame is fixedly connected with a torsion spring, the arc-shaped hole is provided in the inner end of the sliding block, the outer end of the torsion spring is fixedly connected with a rotating disc, the rotating disc is rotatably connected with the inner side of the ring frame, the outer side of the rotating disc is fixedly installed with a limiting rod, the outer end of the limiting rod is provided in a circular arc shape, the outer end of the limiting rod is provided in a concentric circle with the torsion spring, the overall cross section of the arc-shaped hole is also provided in a concentric circle with the torsion spring, and the outer end of the limiting rod is inserted into the inner side of the arc-shaped hole.

7. A water pump impeller hub according to claim 6, wherein: The rotating disc is fixedly installed with a connecting rod on one side in the ring frame, the end of the connecting rod is fixedly installed with an adjusting knob handle penetrating through the ring frame, and the outer surface of the adjusting knob handle is fixedly connected with anti-skid protrusions at equal intervals.

Images