Combined water pump

Abstract

The utility model relates to the technical field of water pumps, in particular to a combined water pump, which is characterized in that a first reinforcing sleeve is sleeved on the outer surface of a water inlet pipe, a second reinforcing sleeve is hinged in the first reinforcing sleeve, a positioning ring is fixedly connected on the outer surface of the first reinforcing sleeve, and a sleeving ring is fixedly connected on the outer surface of the second reinforcing sleeve; an arc-shaped groove is formed in the sleeving ring, sealing rings are sleeved with the first reinforcing sleeve and the second reinforcing sleeve, the first reinforcing sleeve and the second reinforcing sleeve which are in an open state are connected to the surfaces of the two flange plates in a sleeving mode, and the first reinforcing sleeve and the second reinforcing sleeve which are hinged are rotationally attached. At the moment, the positioning ring installed on the surface of the first reinforcing sleeve is slidably sleeved with the arc-shaped groove, the first reinforcing sleeve and the second reinforcing sleeve are fixedly installed in a bolt screwing mode, the connecting position of the two flange plates is reinforced and protected by installing the first reinforcing sleeve and the second reinforcing sleeve, and therefore the abrasion degree of the connecting position of the flange plates is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to water pump technical field, especially a combined water pump. BACKGROUND

[0002] Combined water pump is mainly used to meet various complex liquid delivery requirements, and is widely used in industry, agriculture, urban construction and daily life and many other scenes. In the industrial field, like the delivery of various special media in chemical production, the circulation and cooling of water in different links of the power industry; in the agricultural aspect, whether it is large-area farmland irrigation or drainage operation in low-lying areas; in urban construction, from water supply system to ensure residents' daily water use to drainage system to deal with rainwater and sewage discharge, combined water pump is indispensable. It can adapt to different working conditions by flexibly combining different components to meet the requirements of flow, head and other parameters, ensure the normal operation of various fields, and ensure the orderly development of production and life. The current combined water pump usually needs the following technologies in practical application:

[0003] 1. Efficient impeller design technology to realize accurate regulation and control of different flow and head, and ensure efficient operation of water pump under various working conditions.

[0004] 2. Reliable sealing technology to prevent liquid leakage, especially when transporting corrosive or dangerous liquids, to ensure safe operation.

[0005] 3. Strong and durable material technology, using appropriate materials to manufacture pump body and components to resist erosion of different media and wear and tear during long-term operation.

[0006] At present, in order to realize the function of combined water pump to adapt to different working conditions flexibly, various devices and methods are adopted. Some water pumps connect different types of auxiliary pumps to increase the versatility of the device.

[0007] However, the above method has a prominent problem, that is, the connection between the water pump and the auxiliary pump is fixed by flange connection, but the existing two flange connection parts usually lack shielding protection function, and the flange connection part is directly exposed outside, which is easy to be collided by surrounding objects in complex environment such as industrial production workshop and construction site, such as accidentally hitting the flange by handling tools, direct impact is easy to cause flange deformation, bolt loosening, and further damage the sealing structure, causing liquid leakage. INVENTION CONTENTS

[0008] In view of the defects of the prior art, the utility model provides a combined water pump, solve the water pump and the connection mode of the fixing between the auxiliary pump through the flange, but the existing two flange connection place usually lacks the shelter protection function, the flange connection place is directly exposed outside, in the complex environment such as industrial production workshop, construction site, is easy to be collided by the surrounding object, such as handling tool etc. accidentally hit the flange, direct impact is easy to lead to the deformation of flange, bolt loosening, and then destroy the sealing structure, cause the technical problem of liquid leakage.

[0009] In order to realize above -mentioned purpose, the utility model discloses the following technical schemes to realize:

[0010] A combined water pump, including water inlet pipe, the first reinforcing sleeve is sleeved on the outer surface of water inlet pipe, the second reinforcing sleeve is hinged in the first reinforcing sleeve, the positioning ring is fixedly connected on the outer surface of the first reinforcing sleeve, the sleeve ring is fixedly connected on the outer surface of the second reinforcing sleeve, the arc slot is formed in the inside of sleeve ring, the positioning ring is sleeved in the arc slot, the sealing ring is sleeved in the first reinforcing sleeve and the second reinforcing sleeve.

[0011] Preferably, the bolt is screw connected in the inside of positioning ring.

[0012] Preferably, the outer surface of water inlet pipe is provided with auxiliary pump body, and the flange plate is fixedly connected to the outer surfaces of water inlet pipe and auxiliary pump body.

[0013] Preferably, the two flange plates are sleeved in the first reinforcing sleeve and the second reinforcing sleeve, and the sealing ring is sleeved on the outer surfaces of the two flange plates.

[0014] Preferably, the one end of water inlet pipe away from auxiliary pump body is fixedly connected with main pump body, and the water outlet pipe is fixedly connected to the upper end of main pump body.

[0015] Preferably, the lower end of main pump body is fixedly connected with mounting seat, and the motor is fixedly connected to the upper end of mounting seat.

[0016] Preferably, the main pump body and motor are communicated, and the coupling protector is fixedly connected to the upper end of mounting seat.

[0017] Preferably, the coupling protector is fixedly connected to the outer surfaces of main pump body and motor, and a group of lifting rings are fixedly connected to the outer surface of mounting seat.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] I. When connecting the water inlet pipe and the auxiliary pump body, first, the sealing ring is sleeved at the connection of the two flanges, at this time, the first reinforcing sleeve and the second reinforcing sleeve in the open state are sleeved on the surface of the two flanges, the water inlet pipe and the first reinforcing sleeve are matched with the size of the two flanges in diameter, which facilitates positioning operation, and after sleeving, the two first reinforcing sleeves and the second reinforcing sleeve are screwed, the first reinforcing sleeve and the second reinforcing sleeve are rotatably attached, at this time, the positioning ring mounted on the surface of the first reinforcing sleeve is slid into the arc-shaped groove, and the first reinforcing sleeve and the second reinforcing sleeve are fixedly installed by means of screwing bolts, the first reinforcing sleeve and the second reinforcing sleeve are installed to reinforce and protect the connection of the two flanges, thereby reducing the wear degree of the flange connection, which is beneficial to the reliability of the water supply system, thereby prolonging the service life of the water pump.

[0020] II. The water inlet pipe connected to the surface of the main pump body is connected to a plurality of auxiliary pump bodies of different specifications through the flange connection, and the auxiliary pump bodies and the main pump body are connected through a plurality of auxiliary pump bodies of different specifications, sizes, flow rates, lifts and powers, and the like, and in the face of different use scenarios, the combined water pump can cope with various complex working conditions through diversified specification design. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and the contents of the specification can be implemented, the following is a detailed description of the preferred embodiments of the present application with reference to the accompanying drawings.

[0022] Figure 1 is a perspective view of the present application;

[0023] Figure 2 is an auxiliary pump body connection explosion view of the present application;

[0024] Figure 3 is a sealing ring connection explosion view of the present application;

[0025] Figure 4 is a second reinforcing sleeve connection explosion view of the present application.

[0026] Legend: 11, water inlet pipe; 12, first reinforcing sleeve; 13, second reinforcing sleeve; 14, positioning ring; 15, sleeving ring; 16, arc-shaped groove; 17, bolt; 18, auxiliary pump body; 19, flange; 21, main pump body; 22, water outlet pipe; 23, mounting seat; 24, motor; 25, shaft coupling protective cover; 26, lifting ring; 29, sealing ring. DETAILED DESCRIPTION

[0027] The embodiment of the application provides a combined water pump, which effectively solves the problem that the water pump and the auxiliary pump are fixed through the flange connection mode, but the existing two flange connection parts usually lack shielding protection function, the flange connection part is directly exposed, in the complex environment such as industrial production workshop and construction site, is easily collided by surrounding objects, such as handling tools, etc., the flange is accidentally impacted, direct impact is easy to cause the flange to deform, the bolt to loosen, and then to damage the sealing structure, and to cause liquid leakage, when the water inlet pipe and the auxiliary pump body are connected, first, the sealing ring is sleeved at the two flange disc connection parts, at this time, the first reinforcing sleeve and the second reinforcing sleeve in the open state are sleeved on the surfaces of the two flange discs, the water inlet pipe and the first reinforcing sleeve inner diameter size are adapted to the size of the two flange discs, positioning operation is facilitated, after sleeving, the two first reinforcing sleeves and second reinforcing sleeves are screwed, the two hinged first reinforcing sleeves and second reinforcing sleeves are rotated and attached, at this time, the positioning ring installed on the surface of the first reinforcing sleeve is slid into the arc-shaped groove, the first reinforcing sleeve and the second reinforcing sleeve are fixedly installed in the mode of screwing the bolt, the two flange disc connection parts are reinforced and protected through the installation of the first reinforcing sleeve and the second reinforcing sleeve, so that the wear degree of the flange disc connection part is reduced, the reliability of the water supply system operation is beneficial, and the service life of the water pump is prolonged.

[0028] Embodiment

[0029] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the technical scheme in the embodiment of the application effectively solves the problem that the connection between the water pump and the auxiliary pump is fixed by the flange connection mode, but the existing two flange connection parts usually lack shielding protection function, and the flange connection part is directly exposed, which is easy to be collided by surrounding objects such as handling tools in complex environments such as industrial production workshops and construction sites, and direct impact is easy to cause deformation of the flange, loosening of the bolt, and further damage to the sealing structure, thereby causing the technical problem of liquid leakage, and the overall idea is as follows: a combined water pump, comprising a water inlet pipe 11, a first reinforcing sleeve 12 is sleeved on the outer surface of the water inlet pipe 11, a second reinforcing sleeve 13 is hinged in the first reinforcing sleeve 12, a positioning ring 14 is fixedly connected to the outer surface of the first reinforcing sleeve 12, a sleeving ring 15 is fixedly connected to the outer surface of the second reinforcing sleeve 13, an arc-shaped groove 16 is formed in the inner part of the sleeving ring 15, the positioning ring 14 is sleeved in the arc-shaped groove 16, a sealing ring 29 is sleeved in the first reinforcing sleeve 12 and the second reinforcing sleeve 13, a bolt 17 is threadedly connected in the inner part of the positioning ring 14, the outer surface of the water inlet pipe 11 is provided with an auxiliary pump body 18, the outer surfaces of the water inlet pipe 11 and the auxiliary pump body 18 are fixedly connected with flanges 19, the two flanges 19 are sleeved in the first reinforcing sleeve 12 and the second reinforcing sleeve 13, and the sealing ring 29 is sleeved on the outer surfaces of the two flanges 19. When connecting the water inlet pipe 11 and the auxiliary pump body 18, first, the sealing ring 29 is sleeved on the connection part of the two flanges 19, at this time, the first reinforcing sleeve 12 and the second reinforcing sleeve 13 in the open state are sleeved on the surfaces of the two flanges 19, the inner diameter size of the water inlet pipe 11 and the first reinforcing sleeve 12 is adapted to the size of the two flanges 19, which is convenient for positioning operation, after the sleeving is completed, the two first reinforcing sleeves 12 and the second reinforcing sleeves 13 are screwed, the two hinged first reinforcing sleeves 12 and the second reinforcing sleeves 13 are rotated and attached, at this time, the positioning ring 14 installed on the surface of the first reinforcing sleeve 12 is slidably sleeved into the arc-shaped groove 16, the first reinforcing sleeve 12 and the second reinforcing sleeve 13 are fixedly installed by screwing the bolt 17, the arc-shaped groove 16 and the positioning ring 14 are tightly connected to ensure the attachment degree of the first reinforcing sleeve 12 and the second reinforcing sleeve 13, the first reinforcing sleeve 12 and the second reinforcing sleeve 13 are installed and fixed by sleeving the positioning ring 14 into the arc-shaped groove 16, which is helpful to improve the stability of the installation.

[0030] The end of the water inlet pipe 11 away from the auxiliary pump body 18 is fixedly connected with a main pump body 21, the water inlet pipe 11 connected to the surface of the main pump body 21 is connected with a plurality of auxiliary pump bodies 18 of different specifications by the flange connection mode, the auxiliary pump bodies 18 and the main pump body 21 are connected by different specifications, sizes, flow rates, lifts and powers, and other key parameters, and in the face of different use scenarios, the combined water pump can cope with various complex working conditions by diversified specification design.

[0031] The upper end of the main pump body 21 is fixedly connected with a water outlet pipe 22, the lower end of the main pump body 21 is fixedly connected with a mounting seat 23, the upper end of the mounting seat 23 is fixedly connected with a motor 24, the main pump body 21 and the motor 24 are communicated, the upper end of the mounting seat 23 is fixedly connected with a shaft coupling protection cover 25, the shaft coupling protection cover 25 is fixedly connected to the outer surfaces of the main pump body 21 and the motor 24, a group of lifting rings 26 are fixedly connected to the outer surface of the mounting seat 23, the main pump body 21, the motor 24 and the water inlet pipe 11 constitute a water pump as a whole, and the water pump is connected with a pipeline to provide water supply for life and industry, the main pump body 21 is installed on the mounting seat 23, and the device as a whole can be lifted and carried through the group of lifting rings 26 connected to the surface of the mounting seat 23, the shaft coupling protection cover 25 installed on the mounting seat 23 is used for shielding and protecting the connecting end of the main pump body 21 and the motor 24, and the water outlet pipe 22 at the upper end of the main pump body 21 can perform water outlet operation.

[0032] In view of the problems in the prior art, the utility model provides a combined water pump, when connecting the water inlet pipe 11 and the auxiliary pump body 18, first, the sealing ring 29 is sleeved at the connecting place of the two flanges 19, at this time, the first reinforcing sleeve 12 and the second reinforcing sleeve 13 in the open state are sleeved on the surface of the two flanges 19, the water inlet pipe 11 and the first reinforcing sleeve 12 inner diameter size are adapted to the size of the two flanges 19, which is convenient for positioning operation, after sleeving, the two first reinforcing sleeves 12 and the second reinforcing sleeve 13 are screwed, the first reinforcing sleeve 12 and the second reinforcing sleeve 13 are rotated and attached, at this time, the positioning ring 14 installed on the surface of the first reinforcing sleeve 12 is slid into the arc-shaped groove 16, the first reinforcing sleeve 12 and the second reinforcing sleeve 13 are fixedly installed by the way of screwing the bolt 17, the first reinforcing sleeve 12 and the second reinforcing sleeve 13 are installed to reinforce and protect the connecting place of the two flanges 19, thereby reducing the wear degree of the connecting place of the flanges 19, which is beneficial to the reliability of the water supply system operation, and further prolongs the service life of the water pump.

[0033] Water inlet pipe 11: as the channel for water flow into the water pump, connecting the main pump body 21 and the auxiliary pump body 18, introducing the external water source into the pump body, the outer surface size is adapted to the first reinforcing sleeve 12 inner diameter, which is convenient for cooperation with the first reinforcing sleeve 12 during installation, positioning the flange 19;

[0034] First reinforcing sleeve 12: together with the second reinforcing sleeve 13, reinforcing the flange 19 connecting place between the water inlet pipe 11 and the auxiliary pump body 18, enhancing the stability and sealing performance of the connecting part, the outer surface is fixedly connected with the positioning ring 14, through the cooperation of the positioning ring 14 and the arc-shaped groove 16 on the second reinforcing sleeve 13, accurate positioning and ensuring the installation attachment degree with the second reinforcing sleeve 13, the inner diameter size is adapted to the size of the flange 19, which is convenient for sleeving on the surface of the flange 19, playing the role of positioning and preliminary fixing;

[0035] Second reinforcing sleeve 13: articulated with the first reinforcing sleeve 12, after rotating and fitting, it wraps and reinforces the connection between the water inlet pipe 11 and the flange plate 19 of the auxiliary pump body 18, and is fixedly connected with the sleeve joint ring 15. The arc-shaped groove 16 is provided in the sleeve joint ring 15, which cooperates with the positioning ring 14 of the first reinforcing sleeve 12 to realize accurate installation and close connection of the two;

[0036] Positioning ring 14: fixed on the outer surface of the first reinforcing sleeve 12, during the fitting of the first reinforcing sleeve 12 and the second reinforcing sleeve 13, it slides into the arc-shaped groove 16 in the sleeve joint ring 15 of the second reinforcing sleeve 13, which limits the relative movement of the two, ensures the installation position is accurate, and improves the connection stability;

[0037] Sleeve joint ring 15: fixed on the outer surface of the second reinforcing sleeve 13, the arc-shaped groove 16 is provided inside, which provides a matching structure for the positioning ring 14, so that the first reinforcing sleeve 12 and the second reinforcing sleeve 13 can be closely connected, and the overall reinforcing effect is enhanced. The screw 17 is internally threaded, which further fixes the first reinforcing sleeve 12 and the second reinforcing sleeve 13 through the screw 17;

[0038] Arc-shaped groove 16: provided inside the sleeve joint ring 15, closely cooperates with the positioning ring 14, guides the positioning ring 14 to slide in, accurately positions the first reinforcing sleeve 12 and the second reinforcing sleeve 13, ensures that the two are closely fitted, and improves the stability and reliability of the reinforcing sleeve installation;

[0039] Screw 17: internally threaded in the sleeve joint ring 15 and the positioning ring 14, firmly fixes the first reinforcing sleeve 12 and the second reinforcing sleeve 13 after rotating and fitting, prevents the reinforcing sleeve from loosening, and enhances the reinforcing effect on the flange plate 19 connection;

[0040] Auxiliary pump body 18: has many different specifications, such as size, flow, lift and power, and the key parameters are different from the main pump body 21. It is connected with the water inlet pipe 11 through the flange plate 19, combined with the main pump body 21, so that the water pump can meet different complex working condition requirements, such as large flow or high lift and other special demand scenes;

[0041] Flange plate 19: fixed on the outer surface of the water inlet pipe 11 and the auxiliary pump body 18 respectively, as a key component for connecting the two, it is closely connected with the water inlet pipe 11 and the auxiliary pump body 18 through screw connection and other ways. Its outer diameter size is adapted to the inner diameter of the first reinforcing sleeve 12 and the second reinforcing sleeve 13, which facilitates the sleeve joint of the reinforcing sleeve, and the reinforcing sleeve further enhances the stability of the connection;

[0042] Sealing ring 29: fitted on the outer surface of the two flanges 19, filling the gap between the flanges 19, preventing water from leaking from the flanges 19 connection, enhancing the sealing of the water inlet pipe 11 and the auxiliary pump body 18 connection part, the first reinforcing sleeve 12 and the second reinforcing sleeve 13 exert pressure on it, further improving the sealing effect;

[0043] Main pump body 21: as the core component of the water pump, together with the water inlet pipe 11 and the motor 24 to form the whole water pump, mainly pressurizing and conveying water flow, providing water supply for life, industry, etc., receiving water flow through the water inlet pipe 11, pressurizing through internal impeller structure, and outputting through the water outlet pipe 22. Combined with the auxiliary pump body 18, according to different specifications of the auxiliary pump body 18, the overall performance of the water pump can be flexibly adjusted to adapt to complex working conditions;

[0044] Water outlet pipe 22: fixed on the upper end of the main pump body 21, it is the channel for outputting the pressurized water flow, conveying the pressurized water in the main pump body 21 to the place where it is needed, completing the water supply work of the water pump;

[0045] Mounting seat 23: fixed on the lower end of the main pump body 21, providing stable support for the whole water pump, ensuring the stability of the water pump during operation;

[0046] Upper end installs motor 24 and shaft coupling protection cover 25, provides installation position for motor 24, and protects the connection end of main pump body 21 and motor 24 through shaft coupling protection cover 25, the outer surface is connected with a group of lifting rings 26, which facilitates lifting the whole device by lifting equipment for carrying and installation;

[0047] Motor 24: installed on the upper end of the mounting seat 23, connected with the main pump body 21, provides power for the operation of the water pump, drives the impeller in the main pump body 21 to rotate, so that the water pump can realize the functions of water suction and pressurization;

[0048] Shaft coupling protection cover 25: fixed on the upper end of the mounting seat 23, and wrapped around the outer surface of the main pump body 21 and the motor 24, shielding and protecting the connection end of the main pump body 21 and the motor 24, preventing accidental contact with the connection components and preventing debris from entering to affect the normal operation of the connection components;

[0049] Lifting ring 26: fixed on the outer surface of the mounting seat 23, providing a lifting point for the whole device, cooperating with the lifting equipment to facilitate lifting the water pump for carrying, installation or moving position, improving the operation convenience.

[0050] Working principle:

[0051] The first step, the main pump body 21 is connected with the pipeline through the water inlet pipe 11 and the motor 24 to provide water supply operation for life, industry and the like, the main pump body 21 is installed on the mounting seat 23, the device can be hoisted and carried by a group of lifting rings 26 connected on the surface of the mounting seat 23, the shaft coupling protection cover 25 installed on the mounting seat 23 is used to shield and protect the connecting end of the main pump body 21 and the motor 24, the water outlet pipe 22 on the upper end of the main pump body 21 can carry out water output operation, the water inlet pipe 11 connected on the surface of the main pump body 21 is connected with a plurality of different specifications of the auxiliary pump body 18 through the flange plate 19, the auxiliary pump body 18 and the main pump body 21 are connected through a plurality of different specifications, sizes, flow rates, lifts and power and other key parameters, so that the combined water pump can cope with various complex working conditions when facing different use scenarios (for example, some auxiliary pump bodies 18 have large flow rates and are suitable for occasions requiring a large amount of water supply, and some auxiliary pump bodies 18 have high lifts and can meet the demand of lifting water to a higher position), and the diversified specification design makes the combined water pump be able to cope with various complex working conditions.

[0052] The second step, when connecting the water inlet pipe 11 and the auxiliary pump body 18, first, the sealing ring 29 is sleeved at the connecting place of the two flange plates 19, at this time, the first reinforcing sleeve 12 and the second reinforcing sleeve 13 in the open state are sleeved on the surfaces of the two flange plates 19, the inner diameter size of the water inlet pipe 11 and the first reinforcing sleeve 12 is adapted to the size of the two flange plates 19, so as to facilitate positioning operation, after sleeving, the two first reinforcing sleeves 12 and the second reinforcing sleeves 13 are screwed, the first reinforcing sleeve 12 and the second reinforcing sleeve 13 are rotated and attached, at this time, the positioning ring 14 installed on the surface of the first reinforcing sleeve 12 is sleeved into the arc-shaped groove 16, the first reinforcing sleeve 12 and the second reinforcing sleeve 13 are fixedly installed by screwing the bolt 17, the arc-shaped groove 16 and the positioning ring 14 are tightly connected to ensure the fit of the first reinforcing sleeve 12 and the second reinforcing sleeve 13, the first reinforcing sleeve 12 and the second reinforcing sleeve 13 are installed and fixed by sleeving the positioning ring 14 into the arc-shaped groove 16, which is beneficial to improve the stability of installation.

[0053] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the utility model, and are not limited to the implementation mode. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the implementation modes. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A combined water pump comprising an inlet pipe (11), the outer surface of which is sheathed with a first reinforcing sleeve (12), characterized in that, The first reinforcing sleeve (12) is hingedly connected with a second reinforcing sleeve (13) inside, the outer surface of the first reinforcing sleeve (12) is fixedly connected with a positioning ring (14), the outer surface of the second reinforcing sleeve (13) is fixedly connected with a sleeving ring (15), the sleeving ring (15) is internally provided with an arc-shaped groove (16), and the positioning ring (14) is sleeved in the arc-shaped groove (16). Wherein, the first reinforcing sleeve (12) and the second reinforcing sleeve (13) are sleeved with a sealing ring (29) inside.

2. A modular water pump as claimed in claim 1, wherein, The sleeving ring (15) is internally threaded with a bolt (17); Wherein, the bolt (17) is threaded in the positioning ring (14) inside.

3. A modular water pump as claimed in claim 2, wherein, The outer surface of the water inlet pipe (11) is provided with a secondary pump body (18); Wherein, the outer surface of the water inlet pipe (11) and the secondary pump body (18) is fixedly connected with a flange plate (19).

4. A modular water pump as claimed in claim 3, wherein, Both of the flange plates (19) are sleeved in the first reinforcing sleeve (12) and the second reinforcing sleeve (13) inside; Wherein, the sealing ring (29) is sleeved on the outer surface of the two flange plates (19).

5. A modular water pump as claimed in claim 4, wherein, The end of the water inlet pipe (11) away from the secondary pump body (18) is fixedly connected with a primary pump body (21); Wherein, the upper end of the primary pump body (21) is fixedly connected with a water outlet pipe (22).

6. A modular water pump as claimed in claim 5, wherein The lower end of the primary pump body (21) is fixedly connected with a mounting seat (23); Wherein, the upper end of the mounting seat (23) is fixedly connected with a motor (24).

7. A modular water pump as claimed in claim 6, wherein The primary pump body (21) and the motor (24) are in communication; Wherein, the upper end of the mounting seat (23) is fixedly connected with a shaft coupling protective cover (25).

8. A modular water pump as claimed in claim 7, wherein The shaft coupling protective cover (25) is fixedly connected on the outer surface of the primary pump body (21) and the motor (24); Wherein, the outer surface of the mounting seat (23) is fixedly connected with a group of lifting rings (26).

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