CN112922857A - Conversion method of clean water pump and sewage pump - Google Patents

Conversion method of clean water pump and sewage pump Download PDF

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Publication number
CN112922857A
CN112922857A CN202110157587.7A CN202110157587A CN112922857A CN 112922857 A CN112922857 A CN 112922857A CN 202110157587 A CN202110157587 A CN 202110157587A CN 112922857 A CN112922857 A CN 112922857A
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China
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gland
water inlet
water
adjusting
face
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CN202110157587.7A
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Chinese (zh)
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谢志飞
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0022—Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4293—Details of fluid inlet or outlet

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention discloses a conversion method of a clean water pump and a sewage pump, which is characterized by comprising the following steps: step S1, mounting an adjusting disc and a gland; step S2, detecting water quality, and determining the required end face distance and the size of the water inlet caliber; step S3, adjusting the end face distance; step S4, adjusting the water inlet aperture; and step S5, fixing the relative position of the adjusting disc. The invention provides a conversion method of a clean water pump and a sewage pump, which can realize the adjustment of the distance between the end surface of an impeller and a water inlet and the size of a water inlet caliber, thereby adapting to the requirement of sewage and clean water extraction.

Description

Conversion method of clean water pump and sewage pump
Technical Field
The invention relates to a conversion method, in particular to a conversion method of a clean water pump and a sewage pump.
Background
According to different requirements on water inlet particles, the conversion method of garden clean water pumps and sewage pumps on the market can be divided into two types of water pumps, namely a sewage pump and a clean water pump. The sewage pump has a larger water inlet caliber, and 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, the conversion method of one clean water pump and one sewage pump cannot be used for simultaneously extracting sewage and clean water, and when sewage and clean water are extracted, the conversion method of the two clean water pumps and the sewage pump has to be equipped, so that the cost is increased.
Therefore, the chinese patent publication No. CN106168222B discloses "a method for switching a clean water pump and a sewage 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, a water outlet is disposed on an outer wall of the housing, and the method is characterized in that: the end face of the downward opening of the shell is flush with the end face of the impeller, the outer edge of the end face of the downward opening of the shell extends downwards to form a mounting ring, the conversion method of the clean water pump and the sewage pump 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 arranged below the heightening ring and an adjusting plate arranged below the base plate, 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, the adjusting bolt penetrates through the through hole and is connected with a nut used for mutually pressing the adjusting plate and the base plate, a plurality of water inlets are formed in the circumferential direction of the base plate, and the adjusting plate is provided with a plurality of adjusting blades corresponding to the water inlets, 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.
According to the invention, the mounting ring is formed at the lower opening of the shell, the heightening ring and the inlet adjusting assembly are arranged in the mounting ring, when a conversion method of a clean water pump and a sewage pump is selected as a sewage pump, the heightening rings with different thicknesses are selected according to the turbidity degree of sewage, so that the adjustment of the distance between the impeller and the water inlet is realized, and meanwhile, the inlet adjusting assembly is adjusted, the adjusting plate is rotated, so that the size of the actual water inlet is enlarged; when the selection is regarded as the sewage pump with the conversion method of clarified water pump and sewage pump, pull and increase the circle, perhaps adopt thinner circle that increases for the distance between impeller and the water inlet keeps less interval, simultaneously, adjusts import adjusting part, and rotatory regulating plate reduces the size of actual water inlet.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art, and provides a conversion method of a clean water pump and a sewage pump, which can realize the adjustment of the distance between the end surface of an impeller and a water inlet and the size of a water inlet aperture, so as to meet the requirement of sewage and clean water extraction.
The technical scheme adopted by the invention for solving the technical problems is as follows: a conversion method of a clean water pump and a sewage pump is characterized by comprising the following steps:
step S1, mounting an adjusting disc and a gland, placing a spring at the bottom of the mounting cavity, mounting the adjusting disc in the water inlet, enabling the spring to be abutted against the abutting ring of the adjusting disc, screwing the gland on the inner wall of the mounting cavity, enabling a connecting column on the adjusting disc to penetrate through the gland, and enabling the adjusting disc to be tightly pressed on the upper end face of the gland under the action of the spring;
step S2, detecting water quality, determining a required end face distance and a water inlet caliber size, wherein the end face distance refers to a distance between the lower end face of the impeller and the upper end face of the adjusting disc, the water inlet caliber size refers to a size of a mutual overlapping part of a plugging hole on the gland and a water inlet hole on the adjusting disc, and different end face distances and different water inlet caliber grades are set according to different water quality dirt degrees;
step S3, adjusting the end face distance, rotating the gland to change the axial position of the gland, when the water in the water tank is dirty, rotating the gland anticlockwise, the gland is far away from the impeller direction, the spring extends, the distance between the upper end face of the adjusting disc and the end face of the impeller is increased, when the water in the water tank is clear, rotating the gland clockwise, the gland draws close to the impeller direction, the spring is compressed, the distance between the upper end face of the adjusting disc and the end face of the impeller is reduced, and therefore the adjustment of the end face distance is achieved;
step S4, adjusting the water inlet aperture, rotating the connecting column on the adjusting disc, when the plugging hole and the water inlet hole are completely overlapped, the water inlet aperture is the largest, along with the rotation of the adjusting disc, the dislocation occurs between the water inlet hole and the plugging hole, the water inlet aperture will be gradually reduced, when the water inlet hole and the plugging hole are overlapped again, the water inlet aperture is in the largest state, thus, when the water in the water tank is dirty, the water inlet aperture is increased, when the water in the water tank is clear, the water inlet aperture can be reduced, thereby realizing the adjustment of the water inlet aperture size;
and step S5, fixing the relative position of the adjusting disk, rotating the set screw on the shell, compressing the adjusting disk by using the set screw, avoiding the adjusting disk from rotating, and loosening the set screw in advance when the end surface distance and the water inlet diameter are required to be adjusted again.
As a modification, the connecting column extends out of the gland, a rotating part is formed at the outer end of the connecting column, and in the step S4, the rotating part is held by hand to drive the adjusting disk to rotate.
In another modification, a groove for rotating the gland is formed on the outer end surface of the gland, and in step S3, the gland is rotated by pinching the groove on the gland with a hand.
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.
And improving again, the inlet opening and the shutoff hole are the setting of hoop equipartition respectively, the aperture of inlet opening and shutoff hole is the same, the aperture position relation in inlet opening and shutoff hole satisfies following condition, and after the adjusting disk rotated certain angle, the gland all blocked each inlet opening on the adjusting disk, later, along with the continuation rotation of adjusting disk, each inlet opening was reopened again.
Compared with the prior art, the invention has the advantages that: the regulating disc can rotate relative to the gland, the gland axially limits the regulating disc through the spring, meanwhile, a water inlet hole on the regulating disc and a blocking hole on the gland are communicated with a water tank and a shell cavity, the overlapping part between the blocking hole and the water inlet hole forms the water inlet caliber size of the conversion method of the clean water pump and the sewage pump, when the blocking hole and the water inlet hole are completely overlapped, the water inlet caliber is the largest, dislocation occurs between the water inlet hole and the blocking hole along with the rotation of the regulating disc, and the water inlet caliber is gradually reduced, so that when the water in the water tank is sewage, the water inlet caliber is increased, and when the water in the water tank is clean water, the water inlet caliber size can be reduced, thereby realizing the adjustment of the water inlet caliber size of the conversion method of the clean water pump and the sewage 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 disc 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 impeller direction, the spring extends, the distance between the upper end face of the adjusting disc 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 impeller direction, the spring is compressed, and the distance between the upper end face of the adjusting disc 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 disc is adjusted, the structural parameter requirement of a conversion method of a clean water pump and a sewage pump during extraction of sewage and clean.
Drawings
FIG. 1 is a schematic illustration of the steps of a method of switching between a clean water pump and a sewage pump in an embodiment of the invention;
fig. 2 is a schematic structural view of a submersible pump having a conversion function of a clean water pump and a sewage pump according to the present invention;
FIG. 3 is a schematic structural view of the state in which the water inlet hole on the regulating disk and the blocking hole on the gland completely coincide with each other in FIG. 2;
fig. 4 is a schematic structural view of a state in which the water inlet hole of the adjustment disc and the blocking hole of the gland are staggered with each other in fig. 2.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
First, the structure of the submersible pump having the function of switching between the clean water pump and the sewage pump according to the present invention will be briefly described. As shown in fig. 2 to 4, the submersible pump with a function of switching between a clean water pump and a sewage pump in the present embodiment includes a housing 1, a motor 2, an impeller 3, an adjustment plate 4, a set screw 101, 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, an abutting 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 fastening screw 101 for pressing the adjusting disc 4 is arranged on the shell 1, 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 abuts against the abutting ring 42, the other end of the spring 6, a gland 5 is arranged in the mounting cavity 110, an external thread matched with the internal thread is formed on the peripheral wall of the gland 5, a connecting column 43 penetrating the gland 5 is extended outwards at the center of the adjusting disc 4, and a plurality of plugging holes 51 matched with the water inlet 41 are formed in the gland 5.
Further, as shown in fig. 3 and 4, the connection relationship between the water inlet 41 on the adjusting disk 4 and the plugging hole 51 on the gland 5 is that the water inlet 41 and the plugging hole 51 are respectively arranged uniformly in an annular shape, the diameters of the water inlet 41 and the plugging hole 51 are the same, meanwhile, the position relationship between the diameters of the water inlet 41 and the plugging hole 51 satisfies the following condition, after the adjusting disk 4 rotates by a certain angle, the gland 5 plugs 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. 4, 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.
In addition, the connection post 43 protrudes out of the gland 5, a rotation portion 431 is formed at the outer end of the connection 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.
Finally, as shown in fig. 1, the invention also discloses a conversion method of the clean water pump and the sewage pump, which comprises the following steps:
step S1, installing the adjusting disk 4 and the gland 5, placing a spring 6 at the bottom of the installation cavity 110, installing the adjusting disk 4 in the water inlet 11, making the spring 6 abut against the abutting ring 42 of the adjusting disk 4, screwing the gland 5 on the inner wall of the installation cavity 110, making the connecting column 43 on the adjusting disk 4 penetrate through the gland 5, and pressing the adjusting disk 4 on the upper end surface of the gland 5 under the action of the spring 8;
step S2, detecting water quality, determining a required end face distance and a water inlet caliber size, wherein the end face distance refers to the distance between the lower end face of the impeller 3 and the upper end face of the adjusting disc 4, the water inlet caliber size refers to the size of the mutual overlapping part of the blocking hole 51 on the gland 5 and the water inlet hole 41 on the adjusting disc 4, and different end face distances and water inlet caliber grades are set according to different water quality dirt degrees;
step S3, adjusting the end face distance, rotating the gland 5, changing the axial position of the gland 5, when the water in the water tank is dirty, rotating the gland 5 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 the water in the water tank is clear, rotating the gland 5 clockwise, the gland 5 draws 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 end face distance is achieved;
step S4, adjusting the water inlet aperture, rotating the connecting column 43 on the adjusting disc 4, when the plugging hole 51 and the water inlet hole 41 are completely overlapped, the water inlet aperture is the largest, with the rotation of the adjusting disc 4, the dislocation between the water inlet hole 41 and the plugging hole 51 occurs, the water inlet aperture will be gradually reduced, when the water inlet hole 41 and the plugging hole 51 are overlapped again, the water inlet aperture is in the largest state, thus, when the water in the water pool is dirty, the water inlet aperture is increased, when the water in the water pool is clear, the water inlet aperture can be reduced, thereby realizing the adjustment of the water inlet aperture size;
wherein, inlet opening 41 and shutoff hole 51 are the setting of hoop equipartition respectively, and the aperture of inlet opening 41 and shutoff hole 51 is the same, and the aperture position relation of inlet opening 41 and shutoff hole 51 satisfies following condition, and after adjusting disk 4 rotated certain angle, gland 5 all blocked each inlet opening 41 on adjusting disk 4, afterwards, along with the continuation rotation of adjusting disk 4, each inlet opening 41 was opened again
Step S5, fixing the relative position of the adjusting disk 4, rotating the set screw 101 on the shell 1, compressing the adjusting disk 4 by the set screw 101, avoiding the adjusting disk 4 rotating, and when the end face distance and the water inlet diameter need to be adjusted again, loosening the set screw 101 in advance.
Further, the connecting rod 43 protrudes out of the pressing cover 5, a rotating portion 431 is formed at the outer end of the connecting rod 43, and in the above step S4, the adjusting plate 4 is rotated by holding the rotating portion 431.
Further, a groove 52 for rotating the gland 5 is formed on the outer end surface of the gland 5, and in the above step S3, the gland 5 is rotated by pinching the groove 52 on the gland 5 by hand.
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 superposed part between the blocking hole 51 and the water inlet hole 41 forms the water inlet aperture 401 of the conversion method of the clean water pump and the sewage pump, when the blocking hole 51 and the water inlet hole 41 are completely superposed, the water inlet aperture 401 is the largest, the dislocation between the water inlet hole 41 and the blocking hole 51 occurs along with the rotation of the adjusting disk 4, the water inlet aperture 401 is gradually reduced, when the water inlet hole 41 and the blocking hole 51 are superposed again, the water inlet aperture 401 is in the largest state, thus, the aperture of the water inlet 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 pool is clean, the water inlet caliber 401 can be reduced, thereby realizing the adjustment of the size of the water inlet caliber 401 of the conversion method of the clean water pump and the sewage pump; in addition, the outer peripheral wall of the gland 5 of the invention is connected with the inner side wall of the installation cavity by screw threads, meanwhile, the adjusting disc 4 is pressed on the upper end surface of the gland 5 by the spring 6, the gland 5 is rotated, the axial position of the gland 5 can be changed, when the 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 is extended, the distance between the upper end surface of the adjusting disc 4 and the end surface of the impeller 3 is increased, when the water in the water tank is clean, the gland 5 is rotated clockwise, the gland 5 is closed towards the impeller 3, the spring 6 is compressed, the distance between the upper end surface of the adjusting disc 4 and the end surface of the impeller 3 is reduced, therefore, the distance between the end face of the impeller 3 and the upper end face of the adjusting disc 4 is adjusted, the requirements of conversion method structural parameters of a clean water pump and a sewage pump during sewage and clean water extraction are met, and the function of one pump with multiple purposes is realized.

Claims (5)

1. A conversion method of a clean water pump and a sewage pump is characterized by comprising the following steps:
step S1, installing an adjusting disc (4) and a gland (5), placing a spring (6) at the bottom of an installation cavity (110), installing the adjusting disc (4) in a water inlet (11), enabling the spring (6) to be abutted against an abutting ring (42) of the adjusting disc (4), screwing the gland (5) on the inner wall of the installation cavity (110), enabling a connecting column (43) on the adjusting disc (4) to penetrate through the gland (5), and enabling the adjusting disc (4) to be tightly pressed on the upper end face of the gland (5) under the action of the spring (6);
step S2, detecting water quality, determining a required end face distance and a water inlet caliber size, wherein the end face distance refers to the distance between the lower end face of the impeller (3) and the upper end face of the adjusting disc (4), the water inlet caliber size refers to the size of the mutual overlapping part of the plugging hole (51) on the gland (5) and the water inlet hole (41) on the adjusting disc (4), and different end face distances and water inlet caliber grades are set according to different water quality dirt degrees;
step S3, adjusting the end face distance, rotating the gland (5), changing the axial position of the gland (5), when the water in the water tank is dirty, rotating the gland (5) anticlockwise, keeping the gland (5) away from the impeller (3), extending the spring (6), increasing the distance between the upper end face of the adjusting disc (4) and the end face of the impeller (3), when the water in the water tank is clear, rotating the gland (5) clockwise, drawing the gland (5) towards the impeller (3), compressing the spring (6), reducing the distance between the upper end face of the adjusting disc (4) and the end face of the impeller (3), and accordingly adjusting the end face distance;
step S4, adjusting the water inlet aperture, rotating a connecting column (43) on an adjusting disc (4), when a plugging hole (51) and a water inlet hole (41) are completely overlapped, the water inlet aperture is the largest, along with the rotation of the adjusting disc (3), dislocation occurs between the water inlet hole (41) and the plugging hole (51), the water inlet aperture is gradually reduced, when the water inlet hole (41) and the plugging hole (51) are overlapped again, the water inlet aperture is in the largest state, therefore, when the water in the water tank is dirty, the water inlet aperture is increased, and when the water in the water tank is clear, the water inlet aperture is reduced, thereby realizing the adjustment of the size of the water inlet aperture;
and S5, fixing the relative position of the adjusting disc (4), rotating the set screw (101) on the shell (1), pressing the adjusting disc (4) by using the set screw (101) to avoid the rotation of the adjusting disc (4), and loosening the set screw (101) in advance when the end surface distance and the water inlet diameter need to be adjusted again.
2. The method of claim 1 for converting a clean water pump into a sewage pump, comprising: the connecting column (43) extends out of the gland (5), a rotating part (431) is formed at the outer end of the connecting column (43), and in the step S4, the adjusting disk (4) is driven to rotate by holding the rotating part (431).
3. The method of claim 1 for converting a clean water pump into a sewage pump, comprising: a groove (52) for rotating the gland (5) is formed on the outer end surface of the gland (5), and in the step S3, the gland (5) is driven to rotate by pinching the groove (52) on the gland (5) by hand.
4. The method of claim 1 for converting a clean water pump into a sewage pump, comprising: 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.
5. The method of claim 1 for converting a clean water pump into a sewage pump, comprising: the inlet opening (41) and blocking hole (51) are the setting of hoop equipartition respectively, the aperture of inlet opening (41) and blocking hole (51) is the same, the aperture position relation of inlet opening (41) and blocking hole (51) satisfies following condition, and after adjusting disk (4) rotated certain angle, gland (5) all blocked each inlet opening (41) on adjusting disk (4), and later, along with the continuation of adjusting disk (5) rotates, each inlet opening (41) is reopened.
CN202110157587.7A 2021-02-05 2021-02-05 Conversion method of clean water pump and sewage pump Pending CN112922857A (en)

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CN202110157587.7A CN112922857A (en) 2021-02-05 2021-02-05 Conversion method of clean water pump and sewage pump

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Application Number Priority Date Filing Date Title
CN202110157587.7A CN112922857A (en) 2021-02-05 2021-02-05 Conversion method of clean water pump and sewage pump

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CN112922857A true CN112922857A (en) 2021-06-08

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Publication number Priority date Publication date Assignee Title
CN203002493U (en) * 2012-09-18 2013-06-19 张长清 A water spray head enabling water spray quantity for rice seedling culture to be adjusted
CN105557667A (en) * 2015-12-15 2016-05-11 重庆亘宇园林景观工程有限公司 Adjustable spraying head for garden agent spraying device
CN106168222A (en) * 2016-08-22 2016-11-30 君禾泵业股份有限公司 A kind of immersible pump and utilize this immersible pump to carry out sewage to extract changing method with clear water
CN106286321A (en) * 2016-08-22 2017-01-04 君禾泵业股份有限公司 Immersible pump and utilize this immersible pump to carry out the changing method of sewage and clear water extraction
CN207238073U (en) * 2017-08-08 2018-04-17 旺苍县东河获荣精米厂 A kind of feed arrangement of hulling machine
CN208739972U (en) * 2018-08-15 2019-04-16 海口广境有害生物防治技术有限公司 A kind of new type disinsection spray spray head
CN209697207U (en) * 2018-12-17 2019-11-29 合肥森特环境工程有限公司 A kind of fermentation strain ejecting device of residue production

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Application publication date: 20210608