CN113062871A

CN113062871A - Multipurpose submersible pump

Info

Publication number: CN113062871A
Application number: CN202110458533.4A
Authority: CN
Inventors: 王慧
Original assignee: Suzhou Woda Garden Machinery Co ltd
Current assignee: Suzhou Woda Garden Machinery Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-07-02

Abstract

The invention relates to a multipurpose submersible pump, which is additionally provided with a water inlet flow regulating component. The water inlet base comprises a base body and a skirt part. The seat body is directly butted with the pump shell, and a water through hole and a flow passage are formed on the seat body. The skirt edge part is formed by the continuous downward extension of the bottom wall of the seat body, and a plurality of water inlet gaps are uniformly distributed around the peripheral side wall of the skirt edge part. The water inlet flow regulating assembly is used for regulating the water supply amount in unit time towards the water passing hole, is arranged on the bottom wall of the seat body and is in opposite position with the water passing hole. In the practical application of the submersible pump, the inlet water flow regulating assembly can be freely switched among the clean water drawing function, the moderate polluted water drawing function and the severe polluted water drawing function by controlling the action of the inlet water flow regulating assembly, namely, a customer only needs to buy one submersible pump, and the purchase cost is greatly reduced.

Description

Multipurpose submersible pump

Technical Field

The invention relates to the technical field of water pump manufacturing, in particular to a multipurpose submersible pump.

Background

The submersible pump is an important device for pumping water from a deep well, is wholly submerged in water when working, pumps underground water to the ground surface, is domestic water, mine emergency rescue, industrial cooling, farmland irrigation, seawater lifting, ship load regulation and can also be used for fountain landscape.

It is known that the operation performance of a submersible pump is influenced by several factors such as water quality, water depth and water flow rate, and particularly, the influence of water quality is the greatest. For example: when the particle size of impurities contained in the water to be pumped is larger, the water pumping unit is easy to block, and the abrasion of the impeller assembly in the water pumping unit can be accelerated. As shown in fig. 1, the submersible pump performs water inlet filtration by means of the water inlet holes formed around the side wall of the water inlet base (the size of the water inlet hole diameter directly determines the particle size capable of extracting impurities), and is single in functionality, which means that the submersible pump is only suitable for a specific application scene, and specifically, the submersible pump is divided into a clean water pump, a neutral pump and a sewage pump according to the size of the particles in the water to be extracted, wherein the clean water pump is used for extracting clean water with the particle size of the impurities smaller than 4.5mm, the central pump is used for extracting moderate polluted water with the particle size of the impurities larger than 4.5mm and smaller than 12mm, and the sewage pump is used for extracting severe polluted water with the particle size of the impurities larger than 12 mm. Therefore, when the water quality to be applied is uncertain, customers are required to purchase the clean water pump, the neutral pump and the sewage pump at the same time, which undoubtedly increases the purchase cost greatly. Thus, a skilled person is urgently needed to solve the above problems.

Disclosure of Invention

Therefore, in view of the above-mentioned problems and drawbacks, the present inventors have collected relevant information, evaluated and considered in many ways, and made continuous experiments and modifications by technicians engaged in the industry through years of research and development experience, which finally resulted in the emergence of the multi-purpose submersible pump.

In order to solve the technical problem, the invention relates to a multipurpose submersible pump which comprises a pump shell, a water outlet joint, a water inlet base, a water pumping unit and a water inlet flow regulating assembly. The water inlet base and the pump shell are mutually butted to form a containing cavity. The water outlet joint is inserted and matched on the pump shell and communicated with the containing cavity. The water pumping unit is also arranged in the accommodating cavity. The water pumping unit comprises a motor and an impeller assembly, and when the water pumping unit is started, water is lifted to the water outlet section through the water inlet base by means of a pressure difference effect. The water inlet base comprises a base body and a skirt part. The seat body is directly butted with the pump shell, and a water through hole and a flow passage are formed on the seat body. When the seat body is butted with the pump shell, the flow channel is communicated with the water through hole and the containing cavity at the same time. The skirt edge part is formed by the continuous downward extension of the bottom wall of the seat body, and a plurality of water inlet gaps are uniformly distributed around the peripheral side wall of the skirt edge part. The water inlet flow regulating assembly is used for regulating the water supply amount in unit time towards the water passing hole, is arranged on the bottom wall of the seat body and is in opposite position with the water passing hole.

As a further improvement of the technical scheme of the invention, the water inlet flow regulating assembly comprises a mounting seat and a water blocking sleeve. The mounting seat is directly fixed on the bottom wall of the seat body. The mounting seat is internally provided with an inserting hole which is communicated with the water through hole and is matched with the outer diameter of the water blocking sleeve. The water blocking sleeve comprises a sleeve body. The sleeve body can be placed into the inserting hole, and can be adjusted in axial displacement, and the sleeve body is named as an upper limit position and a lower limit position respectively.

As a further improvement of the technical scheme of the invention, when the water-blocking sleeve is positioned at the upper limit position, assuming that the distance between the bottom wall of the water-blocking sleeve and the bottom wall of the skirt edge part is d1, d1 is more than or equal to 4.5mm and less than or equal to 12 mm; when the water blocking sleeve is located at the lower limit position, the distance between the bottom wall of the water blocking sleeve and the bottom wall of the skirt portion is d2, and d1 is less than 4.5 mm.

As a further improvement of the technical scheme of the invention, the water blocking sleeve also comprises a safety protection piece. The safety guard is used for preventing the invasion of fingers, and is internally arranged and assembled in the sleeve body.

As a further improvement of the technical scheme of the invention, the safety protection piece is formed by continuously and inwardly extending the inner side wall of the sleeve body, and a water flow through seam is arranged on the safety protection piece.

As a further improvement of the technical scheme of the invention, the inflow water flow regulating component comprises a sealing ring. An annular placing groove for placing the sealing ring is formed in the outer side wall of the surrounding sleeve body. When the water blocking sleeve is inserted and matched in place relative to the mounting seat, the sealing ring is elastically pressed between the sleeve body and the mounting seat.

As a further improvement of the technical solution of the present invention, the mounting seat is preferably formed by directly extending downward from the bottom wall of the seat body.

As a further improvement of the technical scheme of the invention, the inflow regulating assembly also comprises a first limiting pin and a second limiting pin. The first limit pin and the second limit pin are inserted into the insertion holes and are oppositely arranged. A first E-shaped groove matched with the first limit pin and a second E-shaped groove matched with the second limit pin are respectively formed in the sleeve body. First E-shaped groove is including the first vertical notch of sliding that forms and directly by the horizontal extension of the vertical notch lateral wall of first sliding horizontal groove, the horizontal groove of second sliding that forms of the vertical notch lateral wall of first sliding by the downward extension of cover body roof. The second E-shaped groove comprises a second sliding longitudinal notch formed by downward extending of the top wall of the sleeve body, a third sliding transverse groove and a fourth sliding transverse groove which are formed by transversely extending the side wall of the second sliding longitudinal notch. Assuming that the distance between the first and second sliding traverse grooves is d3 and the distance between the third and fourth sliding traverse grooves is d4, d3 is d4 is d1-d 2.

Compared with a submersible pump with a traditional design structure, in the technical scheme disclosed by the invention, the water inlet flow regulating assembly is arranged on the bottom wall of the water inlet base and is just opposite to the water through hole. When the submersible pump is applied to a drawing scene of heavily polluted water, the water inlet flow regulating assembly is cancelled so as to completely release the water through hole and allow water liquid containing large-particle impurities to enter the accommodating cavity through the water inlet notch and the water through hole in sequence; when the submersible pump is applied to the drawing scene of moderate polluted water or clean water, the water inlet flow regulating assembly is required to be assembled on the bottom wall of the water inlet base. The water supply amount in unit time towards the water passing hole is regulated by controlling the action of the water inlet flow regulating component, which also means that large-particle impurities cannot enter the accommodating cavity through the water inlet flow regulating component, and in this state, neutral water containing medium-size particle impurities and clean water containing small-size particles are respectively allowed to enter the accommodating cavity through the water inlet notch, the water inlet flow regulating component and the water passing hole in sequence. Therefore, in the practical application of the submersible pump, the inlet water flow regulating assembly can be freely switched among the clean water pumping function, the moderate polluted water pumping function and the severe polluted water pumping function by controlling the action of the inlet water flow regulating assembly, namely, a customer only needs to buy one submersible pump, and the acquisition cost is greatly reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a submersible pump in the prior art.

Fig. 2 is a perspective view of the multipurpose submersible pump of the present invention.

Fig. 3 is a top view of fig. 2.

Fig. 4 is a sectional view a-a of fig. 3.

Fig. 5 is an exploded view of the multi-purpose submersible pump of the present invention after the assembly of the intake base and the intake flow regulating assembly.

Fig. 6 is a perspective view of the multipurpose submersible pump of the present invention after the water inlet base and the water inlet flow regulating assembly are assembled.

Fig. 7 is a top view of fig. 6.

Fig. 8 is a sectional view B-B of fig. 7.

Fig. 9 is a perspective view of the water inlet base of the multipurpose submersible pump of the present invention.

Fig. 10 is a perspective view illustrating an intake flow rate regulating assembly of the multipurpose submersible pump according to the present invention.

Fig. 11 is a top view of fig. 10.

Fig. 12 is a cross-sectional view C-C of fig. 11.

Fig. 13 is a perspective view of a first view of a water blocking sleeve in the multi-purpose submersible pump according to the present invention.

Fig. 14 is a perspective view of a second view of the water blocking sleeve of the multi-purpose submersible pump according to the present invention.

Fig. 15 is a perspective view of a third view of the water blocking sleeve of the submersible pump according to the present invention.

Fig. 16 is a schematic view showing the multipurpose submersible pump according to the present invention in a state where it is not installed in the intake flow rate adjusting assembly.

FIG. 17 is a schematic view of the water intake path of the multipurpose submersible pump of the present invention in a state where the submersible pump is not installed in the intake flow rate adjusting assembly.

Fig. 18 is a schematic view of the multipurpose submersible pump of the present invention installed in the intake flow rate adjusting assembly with the water blocking sleeve in the upper limit position.

FIG. 19 is a schematic view of the water intake path of the submersible pump of the present invention with the water blocking sleeve in the upper limit position, with the intake flow regulating assembly installed.

Fig. 20 is a schematic view of the multipurpose submersible pump of the present invention installed in the intake flow rate adjusting assembly with the water blocking sleeve in the lower limit position.

FIG. 21 is a schematic view of the water intake path of the submersible pump of the present invention with the water blocking sleeve in the lower limit position, with the intake flow regulating assembly installed.

1-a pump casing; 2-water outlet joint; 3-a water inlet base; 31-a seat body; 311-water through holes; 312-a flow channel; 32-skirt portion; 321-a water inlet gap; 4-a water pumping unit; 5-a water inflow regulating component; 51-a mounting seat; 511-a plug-fit hole; 52-water blocking sleeve; 521-a sleeve body; 5211-annular placing groove; 5212-a first E-shaped groove; 52121-first sliding longitudinal slot; 52122-first glide transverse slot; 52123-a second glide transverse slot; 5213-a second E-shaped groove; 52131-second sliding longitudinal slot; 52132-third glide transverse slot; 52133-fourth glide transverse slot; 522-safety guards; 5221 Water flow through the slots; 53-sealing ring; 54-a first limit pin; 55-second limit pin.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The technical solution disclosed in the present invention is further described in detail with reference to the specific embodiments, and fig. 2, fig. 3, and fig. 4 respectively show a schematic perspective view, a top view, and a sectional view a-a thereof of the multi-purpose submersible pump of the present invention, and it can be seen that the multi-purpose submersible pump mainly comprises a pump housing 1, a water outlet joint 2, a water inlet base 3, a water pumping unit 4, and a water inlet flow rate adjusting assembly 5. The intake base 3 and the pump housing 1 are butted against each other to form a receiving cavity. The water outlet joint 2 is inserted and matched on the pump shell 1 and is communicated with the containing cavity. A water pumping unit 4 is also built in the receiving cavity. The pumping unit 4 comprises a motor and impeller assembly and when activated lifts water via the inlet base 3 into the outlet 2 by means of a pressure differential effect. As shown in fig. 9, the inlet base 3 includes a base body 31 and a skirt portion 32. The seat body 31 directly abuts the pump housing 1, and a water through hole 311 and a flow passage 312 are formed thereon. When the seat body 31 is completely butted against the pump housing 1, the flow passage 312 communicates with the water through hole 311 and the accommodation cavity at the same time. The skirt portion 32 is formed by extending the bottom wall of the seat body 31 downward, and a plurality of water inlet notches 321 are uniformly distributed around the peripheral side wall. The inflow flow rate adjusting unit 5 is mounted on the bottom wall of the seat body 31 and is aligned with the water through hole 311.

As shown in fig. 16 and 17, when the submersible pump is applied to a drawing scene of heavily polluted water, the inlet water flow regulating assembly 5 is eliminated to completely release the water passing hole 311, so that the water liquid containing large particle impurities is allowed to enter the accommodating cavity through the water inlet notch 321 and the water passing hole 311 in sequence, and meanwhile, the neutral water and the clean water can also enter the accommodating cavity through the water inlet notch 321 and the water passing hole 311 in sequence; as shown in fig. 18-21, when the submersible pump is used in a moderate polluted water or clean water pumping scenario, the intake flow regulating assembly 5 is mounted on the bottom wall of the intake base 3. By controlling the operation of the inlet flow regulating member 5 to regulate the water supply amount per unit time toward the water passing hole, it also means that large particle impurities cannot enter the accommodating cavity through the inlet flow regulating member 5, and in this state, neutral water containing medium particle impurities and clean water containing small particle impurities are allowed to enter the accommodating cavity through the inlet notch 321, the inlet flow regulating member 5 and the water passing hole 311 in sequence.

In the practical application of the submersible pump, the inlet water flow regulating assembly 5 can be freely switched among the clean water drawing function, the moderate polluted water drawing function and the severe polluted water drawing function by controlling the action, namely, a customer only needs to buy one submersible pump, and the acquisition cost is greatly reduced.

As is known, the inflow rate adjustment unit 5 can adopt various design structures to control the water supply amount per unit time to the water through hole 311 (to control the passing size of particulate matter and impurities in a phase-changing manner), but an embodiment is proposed in which the design structure is simple, the implementation is facilitated, and the subsequent function switching operation is rapid, specifically as follows: as shown in fig. 5 to 15, the inlet flow regulating assembly 5 includes a mounting seat 51, a water blocking sleeve 52, a first limit pin 54 and a second limit pin 55. The mounting seat 51 is preferably formed by a bottom wall of the seat body 31 extending directly downward. An insertion hole 511 is formed in the mounting seat 51 to be communicated with the water passing hole 311 and to be matched with the outer diameter of the water blocking sleeve 52. The water blocking sleeve 52 includes a sleeve body 521. The sleeve body 521 can be inserted into the insertion hole 511, and can be adjusted in axial displacement, which are named as an upper limit position and a lower limit position. The first limit pin 54 and the second limit pin 55 are inserted into the insertion hole 511 and are disposed opposite to each other. A first E-shaped groove 5212 adapted to the first stopper pin 54 and a second E-shaped groove 5213 adapted to the second stopper pin 55 are formed in the sleeve body 521. The first E-shaped groove 5212 includes a first sliding longitudinal slot 52121 formed by extending the top wall of the sleeve body 521 downward, and a first sliding transverse groove 52122 and a second sliding transverse groove 52123 formed by extending the side wall of the first sliding longitudinal slot 52121 transversely. The second E-shaped groove 5213 includes a second sliding longitudinal slot 52131 formed by the downward extension of the top wall of the sleeve body 521, a third sliding transverse groove 52132 and a fourth sliding transverse groove 52133 formed by the transverse extension of the side wall of the second sliding longitudinal slot 52131.

As shown in fig. 18 and 19, when the submersible pump is used in a moderate polluted water drawing scene, the relative height position of the water blocking sleeve 52 needs to be adjusted, so that the first and second limit pins 54 and 55 are respectively located in the second and fourth sliding transverse grooves 52123 and 52133 (at this time, the axial displacement movement of the water blocking sleeve 52 is locked), and assuming that the distance between the bottom wall of the water blocking sleeve and the bottom wall of the skirt portion is d1, 4.5mm ≦ d1 ≦ 12mm, in this case, water liquid with medium particle impurities (the outer diameter is controlled within 4.5mm to 12 mm) is allowed to sequentially enter the accommodating cavity through the water inlet notch 321, the water blocking sleeve 52 and the water through hole 311, and meanwhile, clean water can also enter the accommodating cavity by referring to the same path.

As shown in fig. 20 and 21, when the submersible pump is used in a clean water pumping scene, the relative height position of the water blocking sleeve 52 needs to be adjusted, so that the first and second limit pins 54 and 55 axially slide along the first and second sliding

longitudinal slots

52121 and 52131, respectively, one by one, until the first and second limit pins are located in the first and third sliding

transverse slots

52122 and 52132, respectively (at this time, the axial displacement motion of the water blocking sleeve 52 is locked), and assuming that the distance between the bottom wall and the bottom wall of the skirt portion is d2, the d1 is less than 4.5mm, in this case, the water liquid containing only small particle impurities (with an outer diameter controlled below 4.5 mm) is allowed to enter the accommodating cavity through the water inlet notch 321, the water blocking sleeve 52 and the water through hole 311 in sequence.

It should be noted that, in the above-described embodiment, 1) the mount base 51 is directly and integrally formed on the base body 31. However, in the actual development and design, the mounting seat 51 can be formed as a separate piece according to the actual production capacity and the customer requirement. When the submersible pump needs to be switched in function and needs to be applied to the water inflow regulating assembly 5, the mounting seat 51 and the water blocking sleeve 52 are assembled into a whole on site, and then the whole is detachably fixed on the bottom wall of the seat body 31; 2) the multipurpose submersible pump can accurately switch between the moderate polluted water drawing function and the clean water drawing function due to the accurate control of the relative height position of the water blocking sleeve 52. In view of this, as shown in fig. 14 and 15, assuming that the distance between the first and second slip transverse grooves is d3 and the distance between the third and fourth slip transverse grooves is d4, d3 is d4 is d1-d 2.

Since this product of this company is mainly used for exporting to eu countries, a safety guard 522 is further added to the inner cavity of the water blocking jacket 52 to prevent finger intrusion (as shown in fig. 13) in order to meet eu safety standards.

Furthermore, in view of reducing the manufacturing cost, as shown in fig. 5, the safety guard 522 is directly integrally cast or injection-molded on the water blocking sleeve 52, i.e. it is formed by extending the inner sidewall of the sleeve body 521 inward, and a water through slit 5221 (as shown in fig. 13) is opened thereon.

It is known that when the multipurpose submersible pump is used for pumping clean water, water easily enters into the accommodating cavity through the assembly gap formed between the water blocking sleeve 52 and the mounting seat 51 due to the large size of particles or impurities contained in the water body, and the remaining particles or impurities inevitably affect the sensitivity and smoothness of the axial displacement adjustment of the water blocking sleeve 52, and even cause the phenomenon of "seizing" in severe cases, in view of this, as shown in fig. 10 to 12, the water inlet flow regulating assembly 5 is additionally provided with a sealing ring 53. An annular placing groove 5211 for placing the sealing ring 53 is opened around the outer side wall of the sleeve body 521. When the water blocking sleeve 52 is fitted in place with respect to the mount 51, the packing 52 is elastically pressed between the sleeve body 521 and the mount 51.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multipurpose submersible pump is characterized by comprising a pump shell, a water outlet joint, a water inlet base, a water pumping unit and a water inlet flow regulating assembly; wherein, the water inlet base and the pump shell are mutually butted to form an accommodating cavity; the water outlet joint is inserted and matched on the pump shell and is communicated with the accommodating cavity; the water pumping unit is also arranged in the accommodating cavity; the water pumping unit comprises a motor and an impeller assembly, and when the water pumping unit is started, water is lifted to the water outlet joint through the water inlet base by means of a pressure difference effect; the water inlet base comprises a base body and a skirt part; the seat body is directly butted with the pump shell, and a water through hole and a flow channel are formed on the seat body; when the seat body is completely butted relative to the pump shell, the flow channel is communicated with the water through hole and the accommodating cavity at the same time; the skirt edge part is formed by continuously extending the bottom wall of the seat body downwards, and a plurality of water inlet gaps are uniformly distributed around the peripheral side wall of the skirt edge part; the water inlet flow regulating assembly is used for regulating the water supply amount in unit time towards the water passing hole, is arranged on the bottom wall of the seat body and is in opposite position with the water passing hole.

2. The multipurpose submersible pump of claim 1, wherein the intake flow regulating assembly comprises a mounting seat and a water blocking sleeve; the mounting seat is directly fixed on the bottom wall of the seat body; an inserting hole which is communicated with the water through hole and is matched with the outer diameter of the water blocking sleeve is formed in the mounting seat; the water blocking sleeve comprises a sleeve body; the sleeve body can be placed into the inserting hole and can be adjusted in axial displacement, and the sleeve body is named as an upper limit position and a lower limit position respectively.

3. The multipurpose submersible pump according to claim 2, wherein when the water blocking sleeve is in the upper limit position, assuming that the distance between the bottom wall thereof and the bottom wall of the skirt portion is d1, 4.5mm ≦ d1 ≦ 12 mm; when the water blocking sleeve is located at the lower limit position, assuming that the distance between the bottom wall of the water blocking sleeve and the bottom wall of the skirt portion is d2, d1 is less than 4.5 mm.

4. The utility submersible pump of claim 2, wherein the water blocking jacket further comprises a safety guard; the safety guard is used for preventing the invasion of fingers, and is internally arranged and assembled in the sleeve body.

5. The utility submersible pump of claim 4, wherein the safety guard extends inwardly from the inner sidewall of the housing body and has a water passage slit formed therein.

6. The multipurpose submersible pump of claim 2, wherein the intake flow regulating assembly comprises a sealing ring; an annular placing groove for placing the sealing ring is formed around the outer side wall of the sleeve body; when the water blocking sleeve is inserted and matched in place relative to the mounting seat, the sealing ring is elastically pressed between the sleeve body and the mounting seat.

7. The multipurpose submersible pump of claim 2, wherein the mounting seat is formed by a bottom wall of the seat body extending directly downward.

8. The multipurpose submersible pump according to any one of claims 2 to 7, wherein the inflow regulation assembly further comprises a first limit pin and a second limit pin; the first limiting pin and the second limiting pin are inserted into the insertion holes and are arranged oppositely; a first E-shaped groove matched with the first limiting pin and a second E-shaped groove matched with the second limiting pin are respectively formed in the sleeve body; the first E-shaped groove comprises a first sliding longitudinal notch formed by downward extension of the top wall of the sleeve body, and a first sliding transverse groove and a second sliding transverse groove which are directly formed by transverse extension of the side wall of the first sliding longitudinal notch; the second E-shaped groove comprises a second sliding longitudinal notch formed by downward extension of the top wall of the sleeve body, and a third sliding transverse groove and a fourth sliding transverse groove which are directly formed by transverse extension of the side wall of the second sliding longitudinal notch; assuming that the distance between the first and second sliding traverse grooves is d3 and the distance between the third and fourth sliding traverse grooves is d4, d3 is d4 is d1-d 2.