CN112922852A

CN112922852A - Submersible pump

Info

Publication number: CN112922852A
Application number: CN202110157601.3A
Authority: CN
Inventors: 谢志飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-06-08

Abstract

The invention discloses a submersible pump, which comprises a shell, a motor and an impeller, wherein a water inlet is formed at the lower end of the shell, a water outlet is formed on the side wall of the shell, and the impeller is positioned at the water inlet, and is characterized in that: the installation cavity has been seted up to water inlet department, be provided with a adjustment disk in the installation cavity, the one end of adjustment disk slides and sets up in the water inlet, set up a plurality of inlet openings on the adjustment disk, the cover is equipped with the spring on the adjustment disk, the one end of spring offsets with leaning on the ring, the other end and the installation cavity of spring offset, be formed with the internal thread on the inside wall of installation cavity, be provided with the gland in the installation cavity, be formed with the external screw thread with internal thread looks adaptation on the periphery wall of gland, it has the spliced pole to outwards extend in the center department of adjustment disk, set up a plurality ofly on the gland with inlet opening matched with shutoff hole. The invention provides a submersible pump which can adjust the distance between the end face of an impeller and a water inlet and the size of a water inlet aperture, so that the submersible pump can meet the requirement of extracting sewage and clean water.

Description

Submersible pump

Technical Field

The invention relates to a water pump structure, in particular to a submersible pump.

Background

Most garden submersible pumps in the market at present are divided into a sewage pump and a clean water pump, which have different requirements on water inlet particles. The sewage pump has a larger water inlet caliber, and meanwhile, the distance between the end surface of the impeller and the water inlet is larger, so that the sewage pump can pass through the inlet water flow of larger particle impurities; and the water inlet of the clean water pump is small, the distance between the end surface of the impeller and the water inlet is also small, and large-particle impurity water flow cannot be pumped. Different water pumps are needed when sewage and clean water are extracted. At present, the two pumps are usually designed separately in the market, one submersible pump cannot be used for simultaneously extracting sewage and clean water, and when sewage and clean water are extracted, two submersible pumps have to be equipped, so that the cost is increased.

Therefore, the chinese patent publication No. CN106168222B discloses a submersible pump, which includes a housing with a downward opening, a controller and a driving motor electrically connected to the controller are disposed in the housing, an impeller is disposed on an output shaft of the driving motor, and a water outlet is disposed on an outer wall of the housing, and is characterized in that: the submersible pump comprises a casing, a submersible pump body, a plurality of impeller blades, a mounting ring, a plurality of heightening rings and an inlet adjusting assembly, wherein the end face of the casing, which is open downwards, is flush with the end face of the impeller, the outer edge of the end face of the casing, which is open downwards, extends downwards, the submersible pump body further comprises a plurality of heightening rings with different thicknesses and an inlet adjusting assembly, at least one heightening ring is installed in the mounting ring, the inlet adjusting assembly comprises a base plate and an adjusting plate, the base plate is arranged below the heightening ring, a counter bore is formed in the upper end face of the base plate, a through hole corresponding to the counter bore is formed in the adjusting plate, an adjusting bolt is arranged in the counter bore and is connected with a nut used for mutually pressing the adjusting plate and the base plate after penetrating through the through hole, a plurality of, and a plurality of connecting bolts used for pressing the heightening ring on the end face of the shell are arranged on the periphery of the outer edge of the base plate in the mounting ring.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art, and provides a submersible pump which can adjust the distance between the end face of an impeller and a water inlet and the size of a water inlet aperture so as to meet the requirement of extracting sewage and clean water.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a submersible pump, includes the casing, sets up motor in the casing, sets up in the impeller of motor output, and the lower extreme of casing forms the water inlet, forms the delivery port on the lateral wall of casing, and the impeller is located the delivery port department, its characterized in that: the utility model discloses a water inlet, including the water inlet, the installation cavity that the water inlet communicates and with water inlet looks isocenter line is seted up to water inlet department, be provided with a regulating disc in the installation cavity, the one end of regulating disc slides and sets up in the water inlet, be formed with one on the other end periphery wall of regulating disc and support the ring with the installation cavity bottom is relative, set up a plurality of inlet openings on the regulating disc, the cover is equipped with the spring on the regulating disc, the one end of spring with support and support the ring and offset, the other end of spring offsets with the bottom of installation cavity, be formed with the internal thread on the inside wall of installation cavity, be provided with the gland in the installation cavity, be formed with the external screw thread with internal thread looks adaptation on the periphery wall of gland, locate outwards extending at the center of regulating disc and be equipped with the.

As an improvement, the water inlet holes and the plugging holes are respectively and uniformly distributed in the annular direction.

And the pore diameter of the water inlet hole is the same as that of the blocking hole.

And then, improving the structure, wherein the aperture position relation of the water inlet holes and the blocking holes meets the following conditions, after the adjusting disc rotates for a certain angle, the gland blocks all the water inlet holes on the adjusting disc, and then, along with the continuous rotation of the adjusting disc, all the water inlet holes are opened again.

And the connecting column extends out of the gland, and a rotating part is formed at the outer end of the connecting column.

In another improvement, a groove for the rotation of the gland is formed on the outer end surface of the gland.

And the lower end surface of the gland is provided with an installation groove, a ratchet connected to the connecting column is arranged in the installation groove, the side wall of the installation groove is provided with a pawl matched with the ratchet and a spring plate for pressing the front end of the pawl onto the gear teeth of the ratchet, the lower end surface of the gland is provided with a groove cover for sealing the installation groove, and the rotating part is positioned outside the groove cover.

And the improved structure is characterized in that a mounting groove is formed in the lower end face of the gland, a ratchet connected to the connecting column is arranged in the mounting groove, a pawl matched with the ratchet is arranged on the side wall of the mounting groove, the front end of the pawl is pressed against an elastic sheet on the gear teeth of the ratchet, a groove cover used for sealing the mounting groove is arranged on the lower end face of the gland, a transmission gear part is formed on the outer peripheral wall of the adjusting disc, a driving gear meshed with the transmission gear part is arranged in the shell, and the driving gear is connected with a driving motor.

And a plurality of steel ball grooves are formed on the upper end surface of the gland, and a steel ball which is contacted with the lower surface of the adjusting disc is placed in each steel ball groove.

Compared with the prior art, the invention has the advantages that: the adjusting disc can rotate relative to the gland, the gland axially limits the adjusting disc through the spring, meanwhile, a water inlet hole in the adjusting disc and a blocking hole in the gland are communicated with a water pool and a shell cavity, the overlapping part between the blocking hole and the water inlet hole forms the water inlet caliber size of the submersible pump, when the blocking hole and the water inlet hole are completely overlapped, the water inlet caliber is the largest, the water inlet hole and the blocking hole are staggered along with the rotation of the adjusting disc, and the water inlet caliber is gradually reduced, so that when the water in the water pool is sewage, the water inlet caliber is increased, and when the water in the water pool is clean, the water inlet caliber size can be reduced, thereby realizing the adjustment of the water inlet caliber size of the submersible pump; in addition, the outer peripheral wall of the gland is in threaded connection with the inner side wall of the mounting cavity, meanwhile, the adjusting plate is tightly pressed on the upper end face of the gland through the spring, the axial position of the gland can be changed by rotating the gland, when water in the water tank is sewage, the gland is rotated anticlockwise, the gland is far away from the direction of the impeller, the spring extends, the distance between the upper end face of the adjusting plate and the end face of the impeller is increased, when water in the water tank is clean water, the gland is rotated clockwise, the gland is drawn close to the direction of the impeller, the spring is compressed, and the distance between the upper end face of the adjusting plate and the end face of the impeller is reduced, so that the distance between the end face of the impeller and the upper end face of the adjusting plate is adjusted, the structural parameter requirements of a submersible pump during sewage and clean.

Drawings

Fig. 1 is a schematic structural view of a submersible pump according to embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a submersible pump according to embodiment 2 of the present invention;

FIG. 3 is a schematic view showing the connection structure of the ratchet and the pawl between the connecting column and the gland in embodiment 2 of the present invention;

FIG. 4 is a schematic structural diagram of a state in which the water inlet hole on the regulating disc and the blocking hole on the gland are completely overlapped in the embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a state in which the water inlet hole on the regulating disk and the plugging hole on the gland are staggered with each other in the embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Example 1

As shown in fig. 1, 4 and 5, the submersible pump in this embodiment includes a housing 1, a motor 2, an impeller 3, a regulating disk 4, a gland 5 and a spring 6.

Wherein, the motor 2 is arranged in the shell 1, the impeller 3 is arranged at the output end of the motor 2, a water inlet 11 is formed at the lower end of the shell 1, a water outlet 12 is formed on the side wall of the shell 1, the impeller 3 is positioned at the water inlet 11, meanwhile, an installation cavity 110 which is communicated with the water inlet 11 and has the same central line with the water inlet 11 is arranged at the water inlet 11, an adjusting disc 4 is arranged in the installation cavity 110, one end of the adjusting disc 4 is arranged in the water inlet 11 in a sliding way, a leaning ring 42 which is opposite to the bottom of the installation cavity 110 is formed on the peripheral wall of the other end of the adjusting disc 4, a plurality of water inlet holes 41 are formed on the adjusting disc 4, a spring 6 is sleeved on the adjusting disc 4, one end of the spring 6 is leaned against the leaning ring 42, the other end of the spring 6 is leaned against the bottom of the installation cavity 110, an internal thread is formed on the inner side wall, a connecting column 43 is extended outwards from the center of the adjusting disk 4 and penetrates through the gland 5, and a plurality of plugging holes 51 matched with the water inlet holes 41 are formed in the gland 5.

Further, in embodiment 1, as shown in fig. 4 and 5, the connection relationship between the water inlet 41 on the adjusting disk 4 and the blocking hole 51 on the gland 5 is that the water inlet 41 and the blocking hole 51 are respectively arranged uniformly in a circumferential direction, the diameters of the water inlet 41 and the blocking hole 51 are the same, and meanwhile, the position relationship between the diameters of the water inlet 41 and the blocking hole 51 satisfies the following condition, after the adjusting disk 4 rotates by a certain angle, the gland 5 blocks all the water inlet 41 on the adjusting disk 4, and then, with the continuous rotation of the adjusting disk 4, each water inlet 41 is opened again. As shown in fig. 4, the water inlet hole 41 and the plugging hole 51 are in an overlapped state, at this time, the water inlet caliber 401 formed between the water inlet hole 41 and the plugging hole 51 is the largest; after the adjusting disc 4 rotates by an angle, as shown in fig. 5, the water inlet caliber 401 becomes smaller, thereby realizing the adjustment of the size of the water inlet caliber 401 at the water inlet 11.

Also, in order to reduce the relative rotational friction between the adjustment disc 4 and the gland 5, a plurality of steel ball grooves are formed on the upper end surface of the gland 5, and a steel ball 7 contacting the lower surface of the adjustment disc 4 is placed in each steel ball groove.

Further, in embodiment 1, the coupling post 43 protrudes out of the gland 5, a rotation portion 431 is formed at the outer end of the coupling post 43, and a groove 52 for rotation of the gland 5 is formed on the outer end surface of the gland 5.

When water in the water pool is sewage, the groove 52 on the gland 5 is pinched by hand, the gland 5 is rotated, the gland 5 is far away from the impeller 3, the spring 6 extends, the distance between the upper end surface of the adjusting disc 4 and the lower end surface of the impeller 3 is increased, according to the dirt degree of the sewage, the gland 5 stops rotating the gland 5 after rotating to a certain distance, the axial position of the adjusting disc 4 is determined, then the rotating part 431 on the connecting column 43 is held by hand again, the adjusting disc 4 is rotated, the adjusting disc 4 rotates relative to the gland 5, the water inlet caliber 401 formed by the coincidence part between the water inlet hole 41 on the adjusting disc 4 and the blocking hole 51 on the gland 5 is increased, and similarly, according to the dirt degree of the sewage, a proper water inlet caliber 401 is selected. When the water in the water tank is clean water, the gland 5 is rotated reversely, so that the distance between the lower end face of the impeller 3 and the upper end face of the adjusting disc 4 is reduced, then the adjusting disc 4 is rotated, and the size of the water inlet aperture 401 is reduced, so that the water tank is not cumbersome.

In summary, the invention utilizes the adjusting disk 4 to rotate relative to the gland 5, the gland 5 axially limits the adjusting disk 4 through the spring 6, meanwhile, the water inlet hole 41 on the adjusting disk 4 and the blocking hole 51 on the gland 5 are communicated with the water tank and the cavity of the shell 1, the overlapping part between the blocking hole 51 and the water inlet hole 41 forms the size of the water inlet aperture 401 of the submersible pump, when the blocking hole 51 and the water inlet hole 41 are completely overlapped, the water inlet aperture 401 is the largest, with the rotation of the adjusting disk 4, the dislocation between the water inlet hole 41 and the blocking hole 51 occurs, the water inlet aperture 401 will gradually decrease, when the water inlet hole 41 and the blocking hole 51 are overlapped again, the water inlet aperture 401 is in the largest state, thus, the size of the water inlet aperture 401 can be periodically changed by rotating the adjusting disk 4, when the water in the water tank is sewage, the water inlet aperture 401 is increased, when the water in the water tank is clean, the water inlet aperture 401 can be reduced, so that the size of the water inlet aperture 401 of the submersible pump can be adjusted; in addition, the outer peripheral wall of the gland 5 is in threaded connection with the inner side wall of the installation cavity, meanwhile, the adjusting plate 4 is tightly pressed on the upper end face of the gland 5 through the spring 6, the axial position of the gland 5 can be changed by rotating the gland 5, when water in the water tank is sewage, the gland 5 is rotated anticlockwise, the gland 5 is far away from the impeller 3, the spring 6 extends, the distance between the upper end face of the adjusting plate 4 and the end face of the impeller 3 is increased, when water in the water tank is clean water, the gland 5 is rotated clockwise, the gland 5 is drawn close to the impeller 3, the spring 6 is compressed, the distance between the upper end face of the adjusting plate 4 and the end face of the impeller 3 is reduced, and therefore the adjustment of the distance between the end face of the impeller 3 and the upper end face of the adjusting plate 4 is achieved, the structural parameter requirements of a submersible pump during extraction of the sewage and the clean.

Example 2

Referring to fig. 2 and 3, a technical feature of embodiment 2, which is different from embodiment 1, is that a mounting groove 501 is formed on a lower end surface of the pressing cover 5, a ratchet 8 connected to the connecting post 43 is disposed in the mounting groove 501, a pawl 9 adapted to the ratchet 8 and a spring 91 for pressing a front end of the pawl 9 against teeth of the ratchet 8 are disposed on a side wall of the mounting groove 501, a groove cover 53 for sealing the mounting groove 501 is disposed on the lower end surface of the pressing cover 5, and the rotating portion 431 is located outside the groove cover 53. The ratchet wheel 8 and the pawl 9 are arranged between the adjusting disk 4 and the gland 5, so that the possibility of the adjusting disk 4 rotating without any reason can be effectively reduced.

When the water in the water tank is sewage, the rotating part 431 on the adjusting disc 4 is rotated clockwise, the adjusting disc 4 drives the ratchet wheel 8 to rotate, the ratchet wheel 8 drives the gland 5 to rotate clockwise through the pawl 9, at the moment, under the action of the ratchet wheel 8 and the pawl 9, the adjusting disc 4 and the gland 5 synchronously rotate clockwise, under the threaded connection action between the gland 5 and the installation cavity 110, the gland 5 is screwed out of the installation cavity 110, the adjusting disc 4 is pressed on the upper end surface of the gland 5 by the spring 6, meanwhile, the spring 6 extends, the distance between the upper end surface of the adjusting disc 4 and the lower end surface of the impeller 3 is increased, according to the specific sewage pollution degree, after the gland 5 is screwed out to a certain distance, the rotating part 431 stops rotating, the axial position of the adjusting disc 4 is determined, then, the rotating part 431 rotates anticlockwise, the rotating part 431 drives the adjusting disc 4 to rotate, at the moment, because the ratchet wheel 8 rotates reversely, ratchet 8 can't drive gland 5 synchronous revolution through pawl 9, and adjusting disk 4 rotates the in-process for gland 5 antiport, at adjusting disk 4 rotation process, and the coincidence between the inlet opening 41 on the adjusting disk 4 and the shutoff hole 51 on the gland 5 diminishes periodic emergence change again by little grow, like this, can select a suitable bore 401 of intaking according to the dirty degree of sewage. When the water in the water tank is clean water, the gland 5 is rotated anticlockwise, the gland 5 is closed towards the impeller 3, the spring 6 is compressed, the distance between the lower end face of the impeller 3 and the upper end face of the adjusting disc 4 is reduced, the pawl 9 pushes the ratchet wheel 8 to rotate in the process of rotating the gland 5 anticlockwise, namely the gland 4 simultaneously drives the adjusting disc 5 to rotate, and the gland 5 stops rotating after rotating for a certain distance; and then, the rotating part 431 is rotated anticlockwise to realize the adjustment of the size of the water inlet aperture 401, and the specific adjustment method is the same as the above.

Example 3

Embodiment 3 is structurally characterized in that, compared with embodiment 1, a mounting groove 501 is formed on a lower end surface of the pressing cover 5, a ratchet 8 connected to the connecting column 53 is provided in the mounting groove 501, a pawl 9 adapted to the ratchet 8 and a spring 91 for pressing a front end of the pawl 9 against a gear of the ratchet 8 are provided on a side wall of the mounting groove 501, a groove cover 53 for sealing the mounting groove 501 is provided on the lower end surface of the pressing cover 5, a transmission gear part is formed on an outer circumferential wall of the abutting ring 42 of the adjusting disk 4, a driving gear engaged with the transmission gear part is provided in the housing 1, and the driving gear is connected with a driving motor.

On the regulation method of sewage pump and clean water pump, embodiment 3 difference with embodiment 2 lies in, utilizes driving motor to drive the rotation of adjustment disk 4, realizes the semi-automatization of regulation, simultaneously, can effectively avoid the rotation portion on the spliced pole 43 to stretch out the gland 5 outside, can reduce the setting of rotation portion 431 on the spliced pole 43, like this, can utilize capping 53 can carry out the complete sealing with 8 pawl 9 structures of ratchet in the gland 5.

Claims

1. The utility model provides a submersible pump, includes casing (1), sets up motor (2) in casing (1), sets up in impeller (3) of motor (2) output, and the lower extreme of casing (1) forms water inlet (11), forms delivery port (12) on the lateral wall of casing (1), and impeller (3) are located water inlet (11) department, its characterized in that: the water inlet (11) is provided with an installation cavity (110) which is communicated with the water inlet (11) and has the same central line with the water inlet (11), an adjusting disc (4) is arranged in the installation cavity (110), one end of the adjusting disc (4) is arranged in the water inlet (11) in a sliding manner, a supporting ring (42) which is opposite to the bottom of the installation cavity (110) is formed on the outer peripheral wall of the other end of the adjusting disc (4), a plurality of water inlet holes (41) are formed on the adjusting disc (4), a spring (6) is sleeved on the adjusting disc (4), one end of the spring (6) is abutted against the supporting ring (42), the other end of the spring (6) is abutted against the bottom of the installation cavity (110), an internal thread is formed on the inner side wall of the installation cavity (110), a gland (5) is arranged in the installation cavity (110), an external thread which is matched with the internal thread is formed on the outer peripheral wall of the gland (5), a connecting column (43) which is arranged on the gland (5) in a penetrating, the gland (5) is provided with a plurality of plugging holes (51) matched with the water inlet holes (41).

2. The submersible pump of claim 1, wherein: the water inlet holes (41) and the plugging holes (51) are respectively and uniformly distributed in the annular direction.

3. The submersible pump of claim 2, wherein: the water inlet hole (41) and the blocking hole (51) have the same aperture.

4. The submersible pump of claim 3, wherein: the aperture position relation of the water inlet holes (41) and the blocking holes (51) meets the following condition, after the adjusting disc (4) rotates for a certain angle, the gland (5) blocks all the water inlet holes (41) on the adjusting disc (4), and then the water inlet holes (41) are opened again along with the continuous rotation of the adjusting disc (5).

5. The submersible pump of claim 1, wherein: the connecting column (43) extends out of the gland (5), and a rotating part (431) is formed at the outer end of the connecting column (43).

6. The submersible pump of claim 5, wherein: the outer end face of the gland (5) is provided with a groove (52) for the rotation of the gland (5).

7. The submersible pump of claim 1, wherein: the improved structure of the sealing device is characterized in that a mounting groove (501) is formed in the lower end face of the gland (5), a ratchet wheel (8) connected to the connecting column (43) is arranged in the mounting groove (501), a pawl (9) matched with the ratchet wheel (8) and an elastic sheet (91) pressing the front end of the pawl (9) to the gear teeth of the ratchet wheel (8) are arranged on the side wall of the mounting groove (501), a groove cover (53) used for sealing the mounting groove (501) is arranged on the lower end face of the gland (5), and the rotating portion (431) is located outside the groove cover (53).

8. The submersible pump of claim 1, wherein: the utility model discloses a gland (5) and its manufacturing method, including gland (5) and regulating disc (4), gland (5) have seted up on the terminal surface down and have seted up a mounting groove (501), be provided with a ratchet (8) that connect on spliced pole (43) in mounting groove (501), be provided with on mounting groove (501) lateral wall one with ratchet (9) looks adaptation and with pawl (9) front end compress tightly shell fragment (91) on the teeth of a cogwheel of ratchet (8), be provided with capping (53) that are used for sealed mounting groove (501) under gland (5) on the terminal surface, be formed with transmission gear portion on the wall of leaning on ring (42) periphery of regulating disc (4), be provided with the drive gear with transmission gear portion meshing in casing (1), drive gear and a.

9. The submersible pump of claim 1, wherein: a plurality of steel ball grooves are formed in the upper end face of the gland (5), and a steel ball (7) in contact with the lower surface of the adjusting disc (4) is placed in each steel ball groove.