CN114017360A

CN114017360A - Submersible pump

Info

Publication number: CN114017360A
Application number: CN202111383337.1A
Authority: CN
Inventors: 韦然
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-02-08

Abstract

The invention discloses a submersible pump, which comprises a pump body, wherein a pump cavity is arranged in the pump body, a water inlet is formed in the lower end of the pump body, and an impeller is rotationally connected in the pump cavity; a water outlet is formed in the outer side of the pump body; a waterproof motor is fixedly arranged at the upper end of the pump body; the lower end of the pump body is fixedly provided with a corrugated pipe below the water inlet, the lower end of the corrugated pipe is fixedly provided with a water inlet pipe, the water inlet pipe is connected with a water suction pipe in a sliding manner, a filter plate is fixedly arranged at an opening at the lower end of the water suction pipe, and a one-way control assembly is arranged between the water suction pipe and the water inlet pipe; a first buoy is fixedly arranged on the outer side of the water suction pipe; the lower end of the pump body is fixedly provided with an annular block at the outer side of the water inlet, the lower end of the annular block is provided with four convex rods extending downwards, a support assembly is arranged in each convex rod, and an adjusting assembly connected with a water inlet pipe and the support assembly is arranged in the pump body; the submersible pump is simple in structure, and the water suction pipe can be automatically adjusted according to the liquid level.

Description

Submersible pump

Technical Field

The invention relates to the technical field of submersible pumps, in particular to a submersible pump.

Background

The current submersible pump has a wide application range, and is used for fish culture, shrimp culture, flood prevention, bank resistance, water conservancy construction and the like. A submersible pump generally comprises a pump body, a motor and an impeller; the pump body is provided with a water inlet and a water outlet; the motor is started to drive the impeller to rotate, water is driven to enter from the water inlet and then is discharged from the water outlet, and the water flow channel is a channel formed by a hollow part in the pump body; the following problems often appear when the existing submersible pump is used:

1. when the existing submersible pump is used, the submersible pump is directly placed in water, and silt or other impurities are sucked into the submersible pump due to the fact that the submersible pump sinks to the bottom, so that an impeller is damaged, and the impeller is stuck to burn down a motor when serious;

2. in order to prevent sludge from being sucked into the submersible pump, the submersible pump is generally lifted by using the bracket, so that a water inlet of the submersible pump is lifted above a sludge layer, but the submersible pump is inclined when being placed due to uneven ground at the bottom layer, so that the submersible pump is easy to overturn and the bracket loses effect;

3. in the prior art, the water inlet is lifted by using the bracket, so that the submersible pump cannot drain all water; the working effect of the submersible pump is influenced;

4. in the prior art, the water inlet is lifted by using the bracket, and the ground is uneven, so that water at a lower part of the terrain cannot be sucked away; affecting the working effect of the submersible pump.

Disclosure of Invention

The invention aims to provide a submersible pump which is simple in structure and the water suction pipe can be automatically adjusted according to the liquid level.

In order to achieve the purpose, the invention provides the following technical scheme: a submersible pump comprises a pump body, wherein a pump cavity is arranged in the pump body, a water inlet communicated with the pump cavity is formed in the lower end of the pump body, an impeller is rotationally connected in the pump cavity, and the impeller and the water inlet are coaxially arranged; a water outlet is arranged on the outer side of the pump body along the tangential direction of the impeller; a waterproof motor for driving the impeller to rotate is fixedly arranged at the upper end of the pump body; the lower end of the pump body is fixedly provided with a corrugated pipe below the water inlet, the lower end of the corrugated pipe is fixedly provided with a water inlet pipe, the upper part of the water inlet pipe is connected with a water suction pipe in a sliding manner along the axial direction of the water inlet pipe, the lower end opening of the water suction pipe is fixedly provided with a filter plate, a one-way control assembly is arranged between the water suction pipe and the water inlet pipe, and when the submersible pump works, the one-way control assembly is used for preventing the water suction pipe from moving upwards; a first buoy is fixedly arranged on the outer side of the water suction pipe; the lower extreme of the pump body is in the fixed ring piece that is equipped with in the outside of water inlet, the lower extreme of ring piece is equipped with four downwardly extending's nose bar along circumference interval uniformly, all is equipped with the bracket component in every nose bar, be equipped with the adjusting part who is connected with inlet tube and bracket component in the pump body, when the bracket component propped on the inclined plane, adjusting part control inlet tube drove the direction that the relief of water is low towards the pipe that absorbs water.

Furthermore, the one-way control assembly comprises a pawl, a ratchet groove is formed in the outer side of the water inlet pipe along the axial direction of the water inlet pipe, a first mounting groove is formed in the position, opposite to the ratchet groove, of the inner side wall of the water suction pipe, the pawl is hinged in the first mounting groove, a spring plate used for forcing the pawl to stretch into the ratchet groove is arranged in the first mounting groove, and when the pawl is clamped in the ratchet groove, the water suction pipe can only move downwards along the water inlet pipe; the outer side of the water suction pipe is provided with a first notch communicated with the first mounting groove, the pawl is provided with a driving lever extending out of the first notch, and the driving lever is pressed downwards to drive the pawl to be separated from the ratchet groove.

Furthermore, the outside of inlet tube is equipped with first spacing spout along the axial of inlet tube, the inboard fixed first spacer pin that stretches into in the first spacing spout that is equipped with of suction pipe.

Furthermore, the bracket component comprises a piston rod, a first plug hole which penetrates through the ring block and each protruding rod is arranged in the ring block and each protruding rod along the axial direction of the impeller, the piston rod is connected in the first plug hole in a sliding mode along the axial direction of the impeller, a second limiting sliding groove is arranged on the outer side of the piston rod along the axial direction of the first plug hole, and a second limiting pin which extends into the second limiting sliding groove is arranged on the inner side wall of the first plug hole; a first cavity is formed between the upper end of the piston rod and the pump body in the first plug hole, and a first spring for forcing the piston rod to extend downwards is arranged in the first cavity; a check valve group communicated with the first cavity is arranged in the ring block, and when the piston rod extends downwards out of the first plug hole, a medium outside the pump body enters the first cavity through the check valve group; a valve rod extending out of the ring block is arranged on a valve core of the check valve group, and when the valve rod is pressed towards the center of the ring block, the first cavity is communicated with the outside of the pump body;

and a positioning assembly is arranged at each convex rod in the ring block and used for positioning the piston rod in the first plug hole and unlocking the piston rod at the water falling port positioning assembly of the submersible pump.

Furthermore, the positioning assembly comprises a positioning sliding block, a positioning sliding hole with a square cross section is arranged in the ring block along the radial direction of the first plug hole, the positioning sliding block is connected in the positioning sliding hole in a sliding manner along the radial direction of the first plug hole, a pulley is arranged at each positioning sliding hole on the outer side of the ring block, a floating cavity is arranged above each pulley in the pump body, a second floater is arranged in each floating cavity, and a pull rope which bypasses the pulley and is connected with the positioning sliding block is arranged at the lower end of the second floater; the positioning slide block is provided with a positioning rod extending into the first plug hole, the positioning slide hole is internally provided with a second spring for forcing the positioning slide block to drive the positioning rod to extend into the first plug hole, the lower end of the positioning rod is provided with a first inclined surface, the outer side of the piston rod is provided with a positioning ring groove for the positioning rod to extend into, and when the piston rod is positioned in the first plug hole, the positioning rod is inserted into the positioning ring groove; when the piston rod moves from bottom to top, the piston rod pushes against the first inclined surface to push the positioning rod to drive the positioning slide block to retract into the positioning slide hole.

Furthermore, the adjusting assembly comprises a steel ball, a square frame is arranged in the water inlet through a support rod, and the frame and the water inlet are in a concentric position; the frame is connected with a sliding frame in a sliding mode, the steel balls are located in the sliding frame, four radial sliding grooves which correspond to the convex rods one to one are formed in the pump body and the supporting rod at intervals along the circumferential direction of the water inlet, a radial sliding rod which is located right above the convex rods is connected in the radial sliding grooves in a sliding mode, and a third spring which is used for forcing the radial sliding rods to abut against the outer side of the sliding frame is arranged at one end, away from the frame, of each radial sliding groove; a vertical sliding groove is formed in the ring block below each radial sliding rod, a piston block and a fourth spring for forcing the piston block to move upwards are arranged in each vertical sliding groove, and a second cavity is formed between the piston block and the pump body in each vertical sliding groove; the outer side of the water inlet pipe close to the upper end is provided with a radial convex edge, the lower end of each piston block is provided with a connecting rod extending downwards out of the ring block, and the lower end of each connecting rod is hinged in the radial convex edge in a spherical mode; when the lower end of the submersible pump is in a horizontal position, the steel ball moves to the central position of the water inlet, and each radial slide rod controls the second cavity and the first cavity to be disconnected; when the lower end of the submersible pump is in an inclined position, the steel ball drives the sliding frame to move to the lower position, and the radial sliding rod at the higher position controls the communication between the second cavity and the first cavity below the radial sliding rod under the action of the fourth spring; the radial slide bar at the low position controls the second chamber to be disconnected from the first chamber.

Furthermore, after the submersible pump submerges, when the second cavity is communicated with the first cavity, liquid in the first cavity flows into the second cavity to push the piston block to move downwards, and the piston block drives the water inlet pipe connected with the corrugated pipe to deflect to the lower part through the matching of the connecting rod and the radial convex edge.

Furthermore, a first through hole for communicating the radial sliding chute with the first cavity and a second through hole for communicating the radial sliding chute with the second cavity are formed in each radial sliding rod in the pump body; a communicating groove communicated with the first through hole is formed in each radial sliding rod; when the first chamber is communicated with the second chamber, the communicating groove is communicated with the second through hole, and when the first chamber is disconnected with the second chamber, the communicating groove is disconnected with the second through hole.

Advantageous effects

Compared with the prior art, the technical scheme of the invention has the following advantages:

1. the piston rod is unlocked by using the second buoy to control the positioning rod, so that when the submersible pump is underwater, the second buoy drives the positioning rod to unlock the piston rod, the piston rod extends out under the action of the first spring, a sealed first cavity is formed above the piston rod, and then the submersible pump can be supported when the submersible pump sinks to the bottom, and bottom silt is prevented from being sucked into the pump body by the submersible pump;

2. the first cavity above the piston rod is controlled by pushing the radial slide rod through the steel ball, so that when the submersible pump with uneven ground sinks and inclines, the steel ball rolls due to unevenness, the radial slide rod is controlled to communicate with the first cavity above the piston rod, the extension length of the piston rod is adjusted, and the submersible pump is enabled to recover the vertical state again;

3. the pump body and the water inlet pipe are connected by the corrugated pipe, and the connecting rod with the ball head is matched with the water inlet pipe, so that when the submersible pump inclines, water discharged from the first cavity above the piston rod can enter the second cavity, and the water inlet pipe is controlled to swing towards the direction with lower terrain, and water at the lower terrain can be sucked into the pump;

4. through using first cursory drive telescopic to absorb water tub and the cooperation of one-way control subassembly for the liquid level is when constantly descending, absorbs water tub and can follow the liquid level decline and descend, thereby can be with in the whole suction pump body of water.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view of the piston rod of the present invention with the piston rod extended;

FIG. 4 is a cross-sectional view of the barrel of the present invention as it is extended;

FIG. 5 is a cross-sectional view of the present invention when leaning on uneven ground;

FIG. 6 is a cross-sectional view of the present invention as it would appear when returning to upright position on uneven ground;

FIG. 7 is a cross-sectional view of the present invention when it is returned to upright position on uneven ground and the barrel is extended;

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;

FIG. 9 is a cross-sectional view taken along line C-C of FIG. 3 in accordance with the present invention;

FIG. 10 is an enlarged view taken at I of FIG. 3 according to the present invention;

FIG. 11 is an enlarged view taken at II of FIG. 4 in accordance with the present invention;

FIG. 12 is an enlarged view taken at III in FIG. 7 according to the present invention.

Detailed Description

Referring to fig. 1-12, a submersible pump includes a pump body 1, a pump cavity 101 is provided in the pump body 1, a water inlet 102 communicated with the pump cavity 101 is provided at a lower end of the pump body 1, an impeller 2 is rotatably connected to the pump cavity 101 through a pump shaft 3, and the impeller 2 is coaxial with the water inlet 102; a water outlet 103 is arranged on the outer side of the pump body 1 along the tangential direction of the impeller 2; a waterproof motor 4 for driving the impeller 2 to rotate is fixedly arranged at the upper end of the pump body 1; the lower end of the pump body 1 is fixedly provided with a corrugated pipe 76 below the water inlet 102, the lower end of the corrugated pipe 76 is fixedly provided with a water inlet pipe 75, the water inlet pipe 75 is connected with a water suction pipe 73 in a sliding manner along the axial direction of the water inlet pipe 75, a filter plate 72 is fixedly arranged at an opening at the lower end of the water suction pipe 73, a one-way control assembly is arranged between the water suction pipe 73 and the water inlet pipe 75, and when the submersible pump works, the one-way control assembly is used for preventing the water suction pipe 73 from moving upwards; a first float 74 is fixedly arranged on the outer side of the suction pipe 73; the fixed ring piece 6a that is equipped with in the outside of water inlet 102 of the lower extreme of the pump body 1, the lower extreme of ring piece 6a is equipped with four downwardly extending's nose bar 68 along circumference interval uniformly, all is equipped with the bracket component in every nose bar 68, be equipped with the adjusting part who is connected with inlet tube 75 and bracket component in the pump body 1, when the bracket component propped on the inclined plane, the adjusting part control inlet tube 75 drove the direction that the earth's potential is low of suction pipe 73.

The one-way control assembly comprises a pawl 711, a ratchet groove 751 is arranged on the outer side of the water inlet pipe 75 along the axial direction of the water inlet pipe 75, a first mounting groove 7b is arranged on the inner side wall of the water suction pipe 73 opposite to the ratchet groove 751, the pawl 711 is hinged in the first mounting groove 7b, a spring plate 712 for forcing the pawl 711 to extend into the ratchet groove 751 is arranged in the first mounting groove 7b, and the water suction pipe 73 can only move downwards along the water inlet pipe 75 when the pawl 711 is clamped in the ratchet groove 751; a first notch 7a communicated with the first mounting groove 7b is arranged on the outer side of the water suction pipe 73, a shift lever 71a extending out of the first notch 7a is arranged on the pawl 711, and the shift lever 71a is pressed downwards to drive the pawl 711 to be separated from the ratchet groove 751. The outer side of the water inlet pipe 75 is provided with a first limiting sliding groove 752 along the axial direction of the water inlet pipe 75, and the inner side of the water suction pipe 73 is fixedly provided with a first limiting pin 731 extending into the first limiting sliding groove 752.

The bracket assembly comprises a piston rod 61, a first plug hole 6b which penetrates through the ring block 6a and each protruding rod 68 is arranged in the axial direction of the impeller 2, the piston rod 61 is connected in the first plug hole 6b in a sliding manner in the axial direction of the impeller 2, a second limiting sliding groove 6c is arranged on the outer side of the piston rod 61 in the axial direction of the first plug hole 6b, and a second limiting pin 6d which extends into the second limiting sliding groove 6c is arranged on the inner side wall of the first plug hole 6 b; a first chamber 681 is formed in the first plug hole 6b between the upper end of the piston rod 61 and the pump body 1, and a first spring 62 for urging the piston rod 61 to extend downward is provided in the first chamber 681; a check valve group 67 communicated with the first cavity 681 is arranged in the ring block 6a, and when the piston rod 61 extends out of the first plug hole 6b downwards, a medium outside the pump body 1 enters the first cavity 681 through the check valve group 67; a valve rod 671 extending out of the ring block 6a is arranged on a valve core of the check valve group 67, and when the valve rod 671 is pressed towards the center of the ring block 6a, the first cavity 681 is communicated with the outside of the pump body 1; the ring block 6a is provided with a positioning component at each protruding rod 68, the positioning component is used for positioning the piston rod 61 in the first plug hole 6b, and the piston rod 61 is unlocked at the submersible pump water falling port positioning component.

The positioning component comprises a positioning slide block 631, a positioning slide hole 63c with a square cross section is arranged in the ring block 6a along the radial direction of the first plug hole 6b, the positioning slide block 631 is connected in the positioning slide hole 63c along the radial direction of the first plug hole 6b in a sliding manner, a pulley 64 is arranged at each positioning slide hole 63c on the outer side of the ring block, a floating cavity 111 is arranged above each pulley 64 in the pump body 1, a second floating body 66 is arranged in the floating cavity 111, and a pull rope 65 which bypasses the pulley 64 and is connected with the positioning slide block 631 is arranged at the lower end of the second floating body 66; the positioning slide block 631 is provided with a positioning rod 63a extending into the first plug hole 6b, the positioning slide hole 63c is internally provided with a second spring 632 for forcing the positioning slide block 631 to drive the positioning rod 63a to extend into the first plug hole 6b, the lower end of the positioning rod 63a is provided with a first inclined surface 63b, the outer side of the piston rod 61 is provided with a positioning ring groove 611 for the positioning rod 63a to extend into, and when the piston rod 61 is positioned in the first plug hole 6b, the positioning rod 63a is inserted into the positioning ring groove 611; when the piston rod 61 moves from bottom to top, the piston rod 61 pushes the positioning rod 63a against the first inclined surface 63b to drive the positioning slider 631 to retract into the positioning slide hole 63 c.

The adjusting assembly comprises a steel ball 51, a square frame 5b is arranged in the water inlet 102 through a support rod 5a, and the frame 5b and the water inlet 102 are in a concentric position; a sliding frame 52 is connected in the frame 5b in a sliding manner, the steel balls 51 are positioned in the sliding frame 52, four radial sliding chutes 5c which are in one-to-one correspondence with the convex rods 68 are arranged in the pump body 1 and the support rod 5a at intervals along the circumferential direction of the water inlet, a radial sliding rod 53 which is positioned right above the convex rods 68 is connected in each radial sliding chute 5c in a sliding manner, and a third spring 54 which is used for forcing the radial sliding rod 53 to abut against the outer side of the sliding frame 52 is arranged at one end of each radial sliding chute 5c which is far away from the frame 5 b; a vertical sliding groove 601 is formed in the ring block 6a below each radial sliding rod 53, a piston block 8a and a fourth spring 82 for forcing the piston block 8a to move upwards are arranged in each vertical sliding groove 601, and a second chamber 686 is formed in each vertical sliding groove 601 between the piston block 8a and the pump body 1; the outer side of the water inlet pipe 75 close to the upper end is provided with a radial convex edge 751, the lower end of each piston block 8a is provided with a connecting rod 81 extending downwards out of the ring block 6a, and the lower end of each connecting rod 81 is in spherical hinge joint with the radial convex edge 751; when the lower end of the submersible pump is in a horizontal position, the steel ball 51 moves to the central position of the water inlet 102, and each radial slide rod 53 controls the second chamber 686 and the first chamber 681 to be disconnected; when the lower end of the submersible pump is in an inclined position, the steel ball 51 drives the sliding frame 52 to move to the lower position, and the radial sliding rod 53 at the upper position controls the second chamber 686 and the first chamber 681 below the radial sliding rod to be communicated under the action of the fourth spring 82; the radial slide 53 at the low position controls the second chamber 686 and the first chamber 681 to be disconnected. After the submersible pump submerges, when the second chamber 686 is communicated with the first chamber 681, liquid in the first chamber 681 flows into the second chamber 686 to push the piston block 8a to move downwards, and the piston block 8a drives the water inlet pipe 75 connected with the corrugated pipe 76 to deflect towards the lower part through the matching of the connecting rod and the radial convex edge 751.

A first through hole 11 for communicating the radial sliding groove 5c with the first cavity 681 and a second through hole 12 for communicating the radial sliding groove 5c with the second cavity 686 are formed in each radial sliding rod 53 in the pump body 1; a communicating groove 533 communicated with the first through hole 11 is arranged in each radial sliding rod 53; when the first chamber 681 communicates with the second chamber 686, the communication groove 533 communicates with the second through hole 12, and when the first chamber 681 is disconnected from the second chamber 686, the communication groove 533 is disconnected from the second through hole 12.

FIG. 1 shows the internal structure of the present invention; when the submersible pump needs to be used for working, the submersible pump needs to be submerged into water firstly, in the process of submerging, as the second buoy is subjected to the action of buoyancy, an upward force is generated, the pull rope 65 is pulled to move upwards, the positioning slide block 631 is pulled to compress the second spring 632 under the action of the pulley 64, the positioning rod 63a is driven to retract into the positioning slide hole 63c, the piston rod 61 is unlocked, the piston rod 61 is pushed to extend under the action of the first spring 62, water outside the pump body 1 is sucked into the four first cavities 681 through the one-way valve group 67, and then the piston rod 61 is extended (as shown in fig. 3).

When the ground is flat, the submersible pump can not incline when submerging to the bottom, because the first cavity 681 is a closed cavity, so that the piston rod 61 can not be contracted, the submersible pump keeps the state as shown in figure 3, the waterproof motor 4 is started to drive the impeller 2 to rotate, water enters the pump cavity 101 through the filter plate 72, the suction pipe 73, the water inlet pipe 75 and the water inlet 102 and is discharged from the water outlet 103, due to the action of the first float 74, the barrel 73 is forced upwards, always in the position shown in figure 3, when the liquid level drops to the position of the first float 74, the first float 74 will drop along with the liquid level, and further pull the suction pipe 73 to move downwards (as shown in figure 4), due to the cooperation of the pawl 711 and the ratchet groove 751, the suction pipe 73 will not rise due to the suction negative pressure, and the suction pipe 73 can suck all the water into the pump to complete the drainage.

When the ground has an inclination angle and the submersible pump dives to the bottom and inclines (as shown in fig. 5), the steel ball 51 rolls due to the inclination, taking the state shown in fig. 5 as an example, the steel ball 51 rolls to the right to push the radial slide rod 53 on the right side of the slide frame 52 to move to the right (to move to the lower direction), the radial slide rod 53 on the left side (upper position) moves to the right under the action of the third spring 54, so that the first through hole 11 and the second through hole 12 are communicated through the communication groove 533, water in the first chamber 681 on the upper position enters the second chamber 686 (the second chamber 686 on the upper position) through the first through hole 11, the communication groove 533 and the second through hole 12, so that the piston rod 61 contracts, thereby the submersible pump is restored to be horizontal, and at the same time, due to the water entering the second chamber 686 on the upper position, the piston block 8a is pushed to move downwards against the fourth spring 82, and the connecting rod 81 is hinged with the convex edge ball on the water inlet pipe 75, the water inlet pipe 75 is connected to the pump body 1 through a bellows 76, so that when the connecting rod 81 is extended, the water inlet pipe 75 is driven to swing, and the suction pipe 73 is further driven to swing toward the ground (as shown in fig. 6). In addition, when the submersible pump recovers the level, the steel ball 51 returns to the central position under the action of the third spring 54, so that the second through hole 12 and the communication groove 533 at the high position are disconnected, the first chamber 681 and the second chamber 686 become the closed state again, when the liquid level descends to the position of the first float 74, the first float 74 descends along with the liquid level, and further pulls the water suction pipe 73 to move downwards (as shown in fig. 7), due to the matching of the pawl 711 and the ratchet groove 751, the water suction pipe 73 cannot ascend due to the negative pressure of air suction, and further the water suction pipe 73 extends out towards the direction with low ground potential, so that the submersible pump can suck all water into the pump, and the drainage work is completed.

After the drainage is finished, firstly, the driving lever 71a is rotated, the driving lever 71a drives the pawl 711 to turn over, so that the pawl is separated from the ratchet groove 751, and the suction pipe 73 is pushed upwards to reset; the valve rod 671 is pressed inwards to open the one-way valve group 67, the piston rod 61 is pushed inwards by overcoming the first spring 62, the positioning rod 63a is firstly retracted into the positioning slide hole 63c under the action of the first inclined surface 63b and then enters the positioning ring groove 611, and the piston rod 61 is positioned; then the submersible pump is tilted again, so that the steel ball 51 rolls, each communicating groove 533 is communicated with the second through hole 12, the piston block 8a drives the connecting rod 81 to move upwards under the action of the fourth spring 82, water in the second chamber 686 passes through the second through hole 12, the communicating groove 533, the first through hole 11 and the first chamber 681 and is discharged out of the pump through the check valve set 67, and the water suction pipe 73 is restored to the initial state, so that the recovery of the submersible pump is completed.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A submersible pump comprises a pump body, wherein a pump cavity is arranged in the pump body, a water inlet communicated with the pump cavity is formed in the lower end of the pump body, an impeller is rotationally connected in the pump cavity, and the impeller and the water inlet are coaxially arranged; a water outlet is arranged on the outer side of the pump body along the tangential direction of the impeller; a waterproof motor for driving the impeller to rotate is fixedly arranged at the upper end of the pump body; the submersible pump is characterized in that a corrugated pipe is fixedly arranged at the lower end of the pump body below the water inlet, a water inlet pipe is fixedly arranged at the lower end of the corrugated pipe, a water suction pipe is connected to the water inlet pipe in a sliding mode along the axial direction of the water inlet pipe, a filter plate is fixedly arranged at an opening at the lower end of the water suction pipe, a one-way control assembly is arranged between the water suction pipe and the water inlet pipe, and when the submersible pump works, the one-way control assembly is used for preventing the water suction pipe from moving upwards; a first buoy is fixedly arranged on the outer side of the water suction pipe; the lower extreme of the pump body is in the fixed ring piece that is equipped with in the outside of water inlet, the lower extreme of ring piece is equipped with four downwardly extending's nose bar along circumference interval uniformly, all is equipped with the bracket component in every nose bar, be equipped with the adjusting part who is connected with inlet tube and bracket component in the pump body, when the bracket component propped on the inclined plane, adjusting part control inlet tube drove the direction that the relief of water is low towards the pipe that absorbs water.

2. The submersible pump of claim 1, wherein the unidirectional control assembly comprises a pawl, a ratchet groove is formed in the outer side of the water inlet pipe in the axial direction of the water inlet pipe, a first mounting groove is formed in the inner side wall of the water suction pipe opposite to the ratchet groove, the pawl is hinged in the first mounting groove, a spring sheet used for forcing the pawl to extend into the ratchet groove is arranged in the first mounting groove, and when the pawl is clamped in the ratchet groove, the water suction pipe can only move downwards along the water inlet pipe; the outer side of the water suction pipe is provided with a first notch communicated with the first mounting groove, the pawl is provided with a driving lever extending out of the first notch, and the driving lever is pressed downwards to drive the pawl to be separated from the ratchet groove.

3. The submersible pump of claim 1, wherein the outer side of the water inlet pipe is provided with a first limiting sliding groove along the axial direction of the water inlet pipe, and the inner side of the water suction pipe is fixedly provided with a first limiting pin extending into the first limiting sliding groove.

4. The submersible pump according to claim 1, wherein the bracket assembly comprises a piston rod, a first plug hole is formed in the ring block and each protruding rod in a penetrating manner along the axial direction of the impeller, the piston rod is connected in the first plug hole in a sliding manner along the axial direction of the impeller, a second limiting sliding groove is formed in the outer side of the piston rod along the axial direction of the first plug hole, and a second limiting pin extending into the second limiting sliding groove is formed in the inner side wall of the first plug hole; a first cavity is formed between the upper end of the piston rod and the pump body in the first plug hole, and a first spring for forcing the piston rod to extend downwards is arranged in the first cavity; a check valve group communicated with the first cavity is arranged in the ring block, and when the piston rod extends downwards out of the first plug hole, a medium outside the pump body enters the first cavity through the check valve group; a valve rod extending out of the ring block is arranged on a valve core of the check valve group, and when the valve rod is pressed towards the center of the ring block, the first cavity is communicated with the outside of the pump body;

5. The submersible pump according to claim 4, wherein the positioning assembly comprises a positioning slide block, a positioning slide hole with a square cross section is arranged in the ring block along the radial direction of the first plug hole, the positioning slide block is slidably connected in the positioning slide hole along the radial direction of the first plug hole, a pulley is arranged at each positioning slide hole on the outer side of the ring block, a floating cavity is arranged above each pulley in the pump body, a second float is arranged in each floating cavity, and a pull rope connected with the positioning slide block by bypassing the pulley is arranged at the lower end of each second float; the positioning slide block is provided with a positioning rod extending into the first plug hole, the positioning slide hole is internally provided with a second spring for forcing the positioning slide block to drive the positioning rod to extend into the first plug hole, the lower end of the positioning rod is provided with a first inclined surface, the outer side of the piston rod is provided with a positioning ring groove for the positioning rod to extend into, and when the piston rod is positioned in the first plug hole, the positioning rod is inserted into the positioning ring groove; when the piston rod moves from bottom to top, the piston rod pushes against the first inclined surface to push the positioning rod to drive the positioning slide block to retract into the positioning slide hole.

6. The submersible pump of claim 4, wherein the adjustment assembly comprises a steel ball, a square frame is disposed in the water inlet through a strut, and the frame is concentric with the water inlet; the frame is connected with a sliding frame in a sliding mode, the steel balls are located in the sliding frame, four radial sliding grooves which correspond to the convex rods one to one are formed in the pump body and the supporting rod at intervals along the circumferential direction of the water inlet, a radial sliding rod which is located right above the convex rods is connected in the radial sliding grooves in a sliding mode, and a third spring which is used for forcing the radial sliding rods to abut against the outer side of the sliding frame is arranged at one end, away from the frame, of each radial sliding groove; a vertical sliding groove is formed in the ring block below each radial sliding rod, a piston block and a fourth spring for forcing the piston block to move upwards are arranged in each vertical sliding groove, and a second cavity is formed between the piston block and the pump body in each vertical sliding groove; the outer side of the water inlet pipe close to the upper end is provided with a radial convex edge, the lower end of each piston block is provided with a connecting rod extending downwards out of the ring block, and the lower end of each connecting rod is hinged in the radial convex edge in a spherical mode; when the lower end of the submersible pump is in a horizontal position, the steel ball moves to the central position of the water inlet, and each radial slide rod controls the second cavity and the first cavity to be disconnected; when the lower end of the submersible pump is in an inclined position, the steel ball drives the sliding frame to move to the lower position, and the radial sliding rod at the higher position controls the communication between the second cavity and the first cavity below the radial sliding rod under the action of the fourth spring; the radial slide bar at the low position controls the second chamber to be disconnected from the first chamber.

7. The submersible pump of claim 6, wherein after the submersible pump is submerged, when the second chamber is communicated with the first chamber, liquid in the first chamber flows into the second chamber to push the piston block to move downwards, and the piston block drives the water inlet pipe connected with the bellows to deflect towards the lower part through the cooperation of the connecting rod and the radial convex edge.

8. The submersible pump of claim 6, wherein the pump body is provided with a first through hole for communicating the radial runner with the first chamber and a second through hole for communicating the radial runner with the second chamber at each radial slide bar; a communicating groove communicated with the first through hole is formed in each radial sliding rod; when the first chamber is communicated with the second chamber, the communicating groove is communicated with the second through hole, and when the first chamber is disconnected with the second chamber, the communicating groove is disconnected with the second through hole.