CN215256863U

CN215256863U - Submersible pump

Info

Publication number: CN215256863U
Application number: CN202121879206.8U
Authority: CN
Inventors: 谢桥生; 苗佳琪; 梁仕平; 彭莹; 苗宇
Original assignee: Sichuan Xinjin Qianli Pump Industry Co ltd
Current assignee: Sichuan Xinjin Qianli Pump Industry Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2021-12-21
Anticipated expiration: 2031-08-12

Abstract

The utility model provides a submersible pump relates to electromechanical pump technical field. The submersible pump comprises a motor barrel, a pump body and a water inlet head which are sequentially connected, wherein an anti-blocking mechanism is arranged in the water inlet head. A transmission shaft and an impeller are arranged in the pump body, the impeller is installed on the transmission shaft, and a water outlet is formed in one side of the pump body. The water inlet head is detachably connected with the pump body, a water inlet is radially formed in the lower portion of the water inlet head, a first filter screen is arranged at the water inlet, the upper portion of the water inlet head is connected with a slag discharging pipe, and a one-way valve is installed on the slag discharging pipe. The anti-blocking mechanism comprises a flow limiting plate, a second filter screen, a connecting rod, a connector and a crushing cutter. The flow limiting plate is arranged at the joint of the pump body and the water inlet head, the middle part of the flow limiting plate is provided with a circulation hole, and the second filter screen is annular and is connected to the lower side of the flow limiting plate. The one end of connecting rod welds in the transmission shaft, and the other end can be dismantled with the connector and be connected, is provided with broken sword on the connector. When the transmission shaft rotates, the crushing cutter can be driven to rotate, and a motor does not need to be additionally arranged.

Description

Submersible pump

Technical Field

The utility model belongs to the technical field of the electromechanical pump technique and specifically relates to a immersible pump is related to.

Background

The submersible pump can be used for bathing in hot spring, extracting underground water from deep well, and water extraction projects such as rivers, reservoirs, water channels and the like. The water-saving device is mainly used for farmland irrigation and water for people and livestock in high mountain areas, and can also be used for central air-conditioning cooling, heat pump units, cold pump units, cities, factories, railways, mines and construction sites for water drainage.

The current submersible pump adopts certain anti-blocking measures: the cutter driven by the motor is arranged at the water inlet of the submersible pump, and sundries with large volume are cut up through the cutter, so that the probability that the submersible pump is blocked is reduced. Although the current submersible pump can effectively avoid the blockage of the submersible pump, the following problems still exist: the use of a plurality of motors is costly; the water inlet is arranged at the bottommost part of the submersible pump, when the submersible pump is placed at the bottom of the well, the water inlet is directly contacted with the bottom of the well, and sediment at the bottom of the well easily blocks well water from entering the water inlet.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, the utility model provides a submersible pump, which solves the problems that the prior submersible pump uses a plurality of motors and has high cost; the water inlet is arranged at the bottommost part of the submersible pump, when the submersible pump is placed at the bottom of the well, the water inlet is directly contacted with the bottom of the well, and sediment at the bottom of the well easily blocks well water from entering the water inlet.

In order to achieve the above object, the utility model provides a following technical scheme:

a submersible pump may generally include: the water pump comprises a motor barrel, a pump body and a water inlet head which are sequentially connected, wherein an anti-blocking mechanism is arranged in the water inlet head.

A transmission shaft and an impeller are arranged in the pump body, the impeller is installed on the transmission shaft, and a water outlet is formed in one side of the pump body.

The water inlet head is detachably connected with the pump body, a water inlet is radially formed in the lower portion of the water inlet head, a first filter screen is arranged at the water inlet, the upper portion of the water inlet head is connected with a slag discharging pipe, and a one-way valve is installed on the slag discharging pipe.

The anti-blocking mechanism comprises a flow limiting plate, a second filter screen, a connecting rod, a connector and a crushing cutter. The flow limiting plate is arranged at the joint of the pump body and the water inlet head, the middle part of the flow limiting plate is provided with a circulation hole, and the second filter screen is annular and is connected to the lower side of the flow limiting plate. The one end of connecting rod welds in the transmission shaft, and the other end can be dismantled with the connector and be connected, is provided with broken sword on the connector.

The utility model discloses an in some embodiments, the upper end of connector is connected with the inserted bar, and the inserted bar is pegged graft in the lower extreme of connecting rod, and the inserted bar has the stopper along its radial grafting, and the stopper passes through reset spring with the inserted bar and is connected. The upside slope setting of stopper, downside level set up, set up the spacing hole that matches with the stopper on the connecting rod.

The utility model discloses an in some embodiments, the lower extreme of connecting rod is pegged graft and is had the tight pole of support, supports the removal that the tight pole is used for restricting the stopper, supports the tight pole and can shift up under drive assembly's effect to the butt is in the stopper.

The utility model discloses an in some embodiments, the lower extreme slope of the pole that supports is provided with and connects the face, and drive assembly is including screw, slider and the three hornblocks that the transmission connects in proper order. The lead screw is installed in the connector, slider and lead screw threaded connection, and three hornblocks are fixed on the slider, and one side butt of three hornblocks is in the connection face.

In some embodiments of the present invention, the bottom plate is installed to the bottom of the water inlet head, and the lower side of the bottom plate is provided with the cushion block.

In some embodiments of the present invention, the lower center of the bottom plate is connected to the connecting plug by a screw thread, and the top of the connecting plug is provided with a magnet.

The utility model discloses an in some embodiments, magnet is cyclic annular, and the gag lever post is installed at the top of connecting the stopper, and magnet cup joints in the gag lever post, and the spiro union has stop nut on the gag lever post, and stop nut is located the upside of magnet.

In some embodiments of the present invention, the lower portion of the pump body is provided with a first connecting portion, the upper portion of the water inlet head is provided with a second connecting portion, and the second connecting portion and the first connecting portion are connected by a bolt.

The embodiment of the utility model provides an at least, have following advantage or beneficial effect:

the connector is connected with the transmission shaft, the transmission shaft is in transmission connection with a rotor in the motor barrel, and the transmission shaft can drive the crushing cutter to rotate when rotating without additionally arranging a motor. The water inlet is arranged at the lower part of the water inlet head, and the water inlet is arranged along the radial direction of the water inlet head, so that the water inlet is not directly contacted with sediment at the bottom of the well, and well water can smoothly enter the water inlet.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of a submersible pump;

fig. 2 is a partially enlarged view of a position a in fig. 1.

Icon: 11-a motor barrel, 12-a pump body, 121-a transmission shaft, 122-an impeller, 123-a water outlet, 124-a first connecting part, 125-a bolt, 13-a water inlet head, 131-a water inlet, 132-a first filter screen, 133-a slag discharge pipe, 134-a one-way valve, 135-a second connecting part, 151-a flow limiting plate, 152-a second filter screen, 153-a connecting rod, 154-a connecting head, 155-a crushing cutter, 156-a circulating hole, 157-an inserting rod, 158-a limiting block, 159-a return spring, 161-a limiting hole, 162-a tightening rod, 163-a connecting surface, 164-a lead screw, 165-a sliding block, 166-a triangular block, 171-a bottom plate, 172-a cushion block, 173-a connecting plug, 174-a magnet and 175-a limiting rod, 176-limit nut.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the embodiments of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Examples

Referring to fig. 1-2, the present embodiment provides a submersible pump, which mainly includes: the motor barrel 11, the pump body 12 and the water inlet head 13 are connected in sequence, and an anti-blocking mechanism is arranged in the water inlet head 13. A transmission shaft 121 and an impeller 122 are arranged in the pump body 12, the impeller 122 is mounted on the transmission shaft 121, and a water outlet 123 is arranged on one side of the pump body 12. The motor barrel 11 is provided with a stator part and a rotor part, a transmission shaft 121 is in transmission connection with the output end of the rotor, the transmission shaft 121 drives an impeller 122 to rotate so as to suck well water into the pump body 12, and the well water entering the pump body 12 is discharged from a water outlet 123. The water inlet head 13 is detachably connected with the pump body 12, a water inlet 131 is formed in the lower portion of the water inlet head 13 along the radial direction of the water inlet head, a first filter screen 132 is arranged at the water inlet 131, a slag discharge pipe 133 is connected to the upper portion of the water inlet head 13, and a check valve 134 is installed on the slag discharge pipe 133. The anti-blocking mechanism comprises a flow limiting plate 151, a second filter screen 152, a connecting rod 153, a connecting head 154 and a crushing knife 155. The restrictor plate 151 is disposed at a connection position between the pump body 12 and the water inlet head 13, a flow hole 156 is formed in a middle portion of the restrictor plate 151, and the second filter screen 152 is annular and connected to a lower side of the restrictor plate 151. One end of the connecting rod 153 is welded to the transmission shaft 121, the other end is detachably connected to the connecting head 154, and the connecting head 154 is provided with a crushing knife 155.

The connector 154 is connected with the transmission shaft 121, the transmission shaft 121 is in transmission connection with a rotor in the motor barrel 11, and when the transmission shaft 121 rotates, the crushing cutter 155 can be driven to rotate without additionally arranging a motor. The size of the sundries crushed by the crushing cutter 155 is reduced, the sundries can be discharged out of the pump body 12 from the slag discharge pipe 133, the crushed slag discharged out of the pump body 12 can enter the water inlet head 13 again, and the crushed slag entering the water inlet head 13 again can be crushed by the crushing cutter 155 again, so that the size of the sundries is further reduced, and the probability that the submersible pump is blocked is reduced. The water inlet 131 is arranged at the lower part of the water inlet head 13, and the water inlet 131 is arranged along the radial direction of the water inlet head 13, so that the water inlet 131 is not directly contacted with sediment at the bottom of the well, and well water can smoothly enter the water inlet 131. In addition, the water inlet head 13 is detachably connected to the pump body 12, and the connecting rod 153 is detachably connected to the connecting head 154, so that the crushing blade 155 can be replaced after the crushing blade 155 is damaged.

In the present embodiment, the detachable connection of the connecting rod 153 and the connecting head 154 is achieved by: the upper end of the connector 154 is connected with an inserting rod 157, the inserting rod 157 is inserted into the lower end of the connecting rod 153, the inserting rod 157 is inserted with a limit block 158 along the radial direction, and the limit block 158 is connected with the inserting rod 157 through a return spring 159. The upper side of the limiting block 158 is obliquely arranged, the lower side of the limiting block is horizontally arranged, and the connecting rod 153 is provided with a limiting hole 161 matched with the limiting block 158. When the connector 154 needs to be attached to the connection rod 153, the insertion rod 157 is simply inserted into the lower end of the connection rod 153. In the process of inserting the inserting rod 157 into the lower end of the connecting rod 153, since the upper side of the stopper 158 is obliquely arranged, the stopper 158 can be retracted into the inserting rod 157 after contacting the connecting rod 153, and after the stopper 158 moves to the stopper hole 161, the stopper 158 extends out of the inserting rod 157 under the action of the return spring 159, and at this time, the end of the stopper 158 can be exposed out of the connecting rod 153 to limit the movement of the inserting rod 157. When the transmission shaft 121 rotates, the connecting rod 153 can be driven to rotate, and when the connecting rod 153 rotates, the inserting rod 157 and the crushing knife 155 can be driven to rotate. When the crushing blade 155 needs to be replaced, the limiting block 158 can be pressed first, and then the inserting rod 157 can be pulled out from the connecting rod 153.

When the connecting rod 153 drives the crushing blade 155 to rotate at a high speed, the limiting block 158 tends to move in a direction away from the insertion rod 157 due to the existence of centrifugal force, in order to avoid the limiting block 158 from being completely separated from the insertion rod 157 (after the limiting block 158 is completely separated from the insertion rod 157, the limiting block 158 is not easy to retract into the insertion rod 157), the lower end of the connecting rod 153 is inserted with the abutting rod 162, the abutting rod 162 is used for limiting the movement of the limiting block 158, and the abutting rod 162 can move upwards under the action of the driving assembly and abut against the limiting block 158. The pushing rod 162 is moved upwards by the driving assembly, so that the pushing rod 162 is pushed against the stopper 158 to increase the friction force applied to the stopper 158, thereby preventing the stopper 158 from completely separating from the inserting rod 157 under the action of centrifugal force.

The lower end of the abutting rod 162 is obliquely provided with a connecting surface 163, and the driving assembly comprises a lead screw 164, a sliding block 165 and a triangular block 166 which are sequentially connected in a transmission manner. The screw 164 is mounted on the connector 154, the slider 165 is screwed to the screw 164, the triangular block 166 is fixed to the slider 165, and one side of the triangular block 166 abuts on the connection surface 163. The screw 164 is rotated, the slider 165 drives the triangular block 166 to move along the screw 164, and the triangular block 166 can push the abutting rod 162 upwards in the moving process, so that the abutting rod 162 abuts against the limiting block 158, and the screw 164 is rotated in the direction, so that the abutting rod 162 can move downwards under the action of self gravity, and is separated from the limiting block 158.

In this embodiment, there are two limit blocks 158 and two tightening rods 162, the screw 164 is a positive and negative screw 164, two ends of the screw 164 are provided with threads with opposite rotation directions, and the two tightening rods 162 move upwards simultaneously by rotating the screw 164.

In order to further increase the distance between the water inlet 131 and the bottom of the well, a bottom plate 171 is mounted at the bottom of the water inlet head 13, and a pad 172 is disposed on the lower side of the bottom plate 171.

Metal objects with small volume are easy to exist at the bottom of the well, and if the metal objects enter the water inlet 131 and then directly contact the crushing knife 155, the crushing knife 155 is easy to damage. In order to prevent the crushing blade 155 from being damaged by the metal objects introduced into the water inlet 131, a coupling plug 173 is screw-coupled to the center of the lower portion of the bottom plate 171, and a magnet 174 is mounted on the top of the coupling plug 173. The connection plug 173 is provided with an external thread, and the base plate 171 is provided with an internal thread matching the external thread. The metal objects introduced into the water inlet 131 are attracted to the magnet 174, and the metal objects attracted to the magnet 174 can be cleaned by periodically removing the coupling plug 173 and the magnet 174 from the bottom plate 171.

The magnet 174 is annular, and the top of connecting plug 173 is installed the gag lever post 175, and the magnet 174 cup joints in gag lever post 175, and the spiro union has stop nut 176 on the gag lever post 175, and stop nut 176 is located the upside of magnet 174. Through the setting of gag lever post 175 and stop nut 176, make things convenient for dismouting, the change of magnet 174.

In this embodiment, the detachable connection of the pump body 12 to the water inlet head 13 is achieved by: the lower part of the pump body 12 is provided with a first connecting part 124, the upper part of the water inlet head 13 is provided with a second connecting part 135, and the second connecting part 135 is connected with the first connecting part 124 through a bolt 125, so that the water inlet head 13 can be conveniently detached from the pump body 12, and an operator can conveniently replace the crushing knife 155 after detaching the water inlet head 13.

Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications and changes, and the embodiments of the present invention and features of the embodiments can be arbitrarily combined with each other without conflict. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A submersible pump, comprising: the water pump comprises a motor barrel, a pump body and a water inlet head which are connected in sequence, wherein an anti-blocking mechanism is arranged in the water inlet head;

a transmission shaft and an impeller are arranged in the pump body, the impeller is mounted on the transmission shaft, and a water outlet is formed in one side of the pump body;

the water inlet head is detachably connected with the pump body, a water inlet is formed in the lower portion of the water inlet head along the radial direction of the water inlet head, a first filter screen is arranged at the water inlet, a slag discharge pipe is connected to the upper portion of the water inlet head, and a one-way valve is mounted on the slag discharge pipe;

the anti-blocking mechanism comprises a flow limiting plate, a second filter screen, a connecting rod, a connector and a crushing cutter; the flow limiting plate is arranged at the joint of the pump body and the water inlet head, a flow hole is formed in the middle of the flow limiting plate, and the second filter screen is annular and connected to the lower side of the flow limiting plate; the one end of connecting rod weld in the transmission shaft, the other end with the connection can be dismantled and be connected, be provided with broken sword on the connection.

2. The submersible pump according to claim 1, wherein an insertion rod is connected to an upper end of the connector, the insertion rod is inserted into a lower end of the connecting rod, a limiting block is inserted into the insertion rod along a radial direction of the insertion rod, and the limiting block is connected with the insertion rod through a return spring; the upside slope of stopper sets up, and the downside level sets up, set up on the connecting rod with the spacing hole that the stopper matches.

3. The submersible pump of claim 2, wherein a tightening rod is inserted into a lower end of the connecting rod, the tightening rod is used for limiting the movement of the limiting block, and the tightening rod can move upwards under the action of the driving assembly and abuts against the limiting block.

4. The submersible pump of claim 3, wherein the lower end of the abutting rod is obliquely provided with a connecting surface, and the driving assembly comprises a lead screw, a sliding block and a triangular block which are sequentially connected in a transmission manner; the lead screw is installed in the connector, the slider with lead screw threaded connection, three hornblocks are fixed on the slider, one side butt of three hornblocks in connect the face.

5. The submersible pump of claim 1, wherein a bottom plate is mounted to the bottom of the water inlet head, and a spacer is disposed on the underside of the bottom plate.

6. The submersible pump of claim 5, wherein the lower center of the bottom plate is threaded with a connection plug, and a magnet is mounted on the top of the connection plug.

7. The submersible pump of claim 6, wherein the magnet is annular, a limiting rod is mounted at the top of the connecting plug, the magnet is sleeved on the limiting rod, a limiting nut is screwed on the limiting rod, and the limiting nut is located on the upper side of the magnet.

8. The submersible pump according to any of claims 1-7, wherein the lower part of the pump body is provided with a first connection portion, and the upper part of the water inlet head is provided with a second connection portion, and the second connection portion is connected with the first connection portion through a bolt.