CN219492605U - Pump structure - Google Patents

Abstract

The utility model provides a pump structure, comprising a motor; the first pump body comprises a first upper flange, a first lower flange and a first pipe, wherein the first pipe is connected between the first upper flange and the first lower flange, and the first upper flange is connected with the motor; the second pump body comprises a second flange and a second pipe which are connected, the second flange is connected with the first lower flange, an angle alpha is formed between the first pipe and the second pipe, the pump structure is provided with at least two mounting modes, and the alpha angle values of the mounting modes of the pump structures are different. The pump structure adopts split type first pump body with the equipment shaping such as second pump body carries out the second flange with the connection of first lower flange, consequently can design to obtain the pump structure of first pipe with the different contained angles of second pipe avoids different pump structures to adopt different moulds to make, and causes the input cost to increase.

Description

Pump structure

Technical Field

The utility model relates to the field of pumps, in particular to a single suction pump structure.

Background

The single-stage single-suction pump is used as a centrifugal pump, has the advantages of stable operation, low noise, convenient maintenance and the like, is widely applied to occasions such as pipeline pressurization, high-rise building pressurization, long-distance and pressurized air conditioner refrigerating system water supply, industrial and urban water supply and drainage, boiler cold and warm water circulation, equipment matching and the like, and has wide application scenes.

The single suction pump is divided into two structures of a horizontal pump and a vertical pump for application in different installation environments, wherein an inlet and an outlet of the horizontal pump form an included angle of 90 degrees, and an inlet and an outlet of the vertical pump form an included angle of 90 degrees or are concentrically arranged, so that the vertical pump disclosed in the application number CN2020211301944 and the horizontal pump disclosed in the application number CN201120547465.0 are different in shape, and different die casting is needed, so that the input cost is increased.

Disclosure of Invention

In order to solve the above problems, the present utility model provides a pump structure which is split and can be assembled to form different kinds.

The present utility model provides a pump structure comprising:

a motor;

the first pump body comprises a first upper flange, a first lower flange and a first pipe, wherein the first pipe is connected between the first upper flange and the first lower flange, and the first upper flange is connected with the motor;

the second pump body comprises a second flange and a second pipe which are connected, the second flange is connected with the first lower flange, an angle alpha is formed between the first pipe and the second pipe, the pump structure is provided with at least two mounting modes, and the alpha angle values of the mounting modes of the pump structures are different.

As a preferred embodiment, the second flange is provided with a plurality of second installation holes which are circumferentially arranged at intervals, the first lower flange is provided with a plurality of first lower installation holes which are circumferentially arranged at intervals, and the second installation holes correspond to the first lower installation holes and are connected through fasteners;

the motor comprises a motor flange, a plurality of motor mounting holes are formed in the motor flange at intervals, a plurality of first upper mounting holes are formed in the first upper flange at intervals, and the first upper mounting holes correspond to the motor mounting holes and are connected through fasteners.

As a preferred embodiment, the connector further comprises an adapter body, the adapter body comprising:

the motor flange is connected with the motor flange, and the motor mounting holes correspond to the motor mounting holes and are connected through fasteners;

the transfer pump flange, the transfer pump mounting hole that a plurality of circumference interval set up has been seted up on the transfer pump flange, the transfer pump flange with first last flange joint, the transfer pump mounting hole with first last mounting hole corresponds to connect through the fastener.

As a preferred embodiment, the adapter further comprises an inner ring, the inner edge of the adapter pump flange extends towards the direction of the adapter motor flange to form the inner ring, and the output shaft of the motor penetrates through the inner ring and is connected with an impeller, and the impeller is located inside the first pump body.

As a preferred embodiment, further comprising:

the shaft sleeve is sleeved between the output shaft and the inner ring;

and the impeller nut is in threaded connection with the tail end of the output shaft, so that the impeller is limited between the shaft sleeve and the impeller nut.

As a preferred embodiment, further comprising:

the static ring is sleeved between the shaft sleeve and the inner ring, an inner ring step is arranged on the inner wall of the inner ring, and two axial ends of the static ring are respectively abutted against the inner ring step and the movable ring;

the movable ring is sleeved between the shaft sleeve and the inner ring, a shaft sleeve step is arranged on the outer wall of the shaft sleeve, and two axial ends of the movable ring are respectively abutted to the shaft sleeve step and the stationary ring.

As a preferred embodiment, the first lower flange comprises a first lower inner ring and a first lower outer ring, the impeller comprises an impeller body and an impeller mouth ring which are connected, the impeller body is positioned between the first upper flange and the first lower flange, the impeller mouth ring is positioned on the inner side of the first lower inner ring, the first lower outer ring is abutted to the second flange, a sealing ring is arranged between the first lower inner ring and the second flange, and the sealing ring is in clearance fit with the impeller mouth ring.

As a preferred embodiment, the angle α between the first tube and the second tube is 0 to 180 °.

As a preferred embodiment, the motor, the first pump body, and the second pump body are arranged in a vertical direction;

or the motor, the first pump body and the second pump body are arranged along the transverse direction, and the outer wall of the first pump body is connected with a supporting seat.

As a preferred embodiment, the outer wall of the first pump body is provided with a bottom ear, and the supporting seat is connected with the bottom ear.

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

the pump structure adopts split type first pump body with equipment shaping such as second pump body, and first pipe with the second pipe is with free angle mode, carries out the second flange with the connection of first lower flange, consequently can design to get the first pipe with the pump structure of the different contained angles of second pipe, it can be seen that first pump body with the second pump body can adopt same set of mould preparation, can obtain the pump of different structures through free angle equipment mode, reduces the input cost, can also reach energy saving and emission reduction's effect to a certain extent, and according to the demand, use in different environment, have simple structure, simple to operate and excellent performance etc. characteristics.

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings.

Drawings

FIG. 1 is a cross-sectional view of a first embodiment of a pump structure according to the present utility model;

FIG. 2 is an enlarged schematic view of FIG. 1A;

FIG. 3 is a perspective view of a first embodiment of a pump structure according to the present utility model;

FIG. 4 is a perspective view of a second embodiment of a pump structure according to the present utility model;

FIG. 5 is a front view of a second embodiment of a pump structure according to the present utility model;

FIG. 6 is a perspective view of a third embodiment of a pump structure according to the present utility model;

fig. 7 is a front view of a third embodiment of the pump structure of the present utility model.

In the figure: 1000 second pump body, 1001 fastener, 1100 second flange, 1200 second tube, 2000 first pump body, 2100 first upper flange, 2200 first lower flange, 2210 first lower inner ring, 2220 first lower outer ring, 2300 first tube, 2400 first pump sidewall, 2500 foot ear, 3000 adapter, 3100 adapter motor flange, 3200 adapter pump flange, 3300 inner ring, 3310 inner ring step, 3400 adapter sidewall, 4000 motor, 4001 output shaft, 4100 motor flange, 5000 impeller, 5100 impeller body, 5200 impeller mouth ring, 6100 stationary ring, 6200 moving ring, 6300 shaft sleeve, 6310 shaft sleeve step, 6400 impeller nut, 6500 key, 6600 seal ring, 7000 support, 7100 clamping plate, 7200 bottom plate.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

First embodiment

As shown in fig. 1 and 2, the pump structure includes:

a motor 4000;

a first pump body 2000, the first pump body 2000 including a first upper flange 2100, a first lower flange 2200, and a first pipe 2300, the first pipe 2300 being connected between the first upper flange 2100 and the first lower flange 2200, the first upper flange 2100 being connected to the motor 4000;

the second pump body 1000, the second pump body 1000 includes a second flange 1100 and a second pipe 1200 that are connected, the second flange 1100 is connected to the first lower flange 2200, an angle α is formed between the first pipe 2300 and the second pipe 1200, the pump structure has at least two mounting forms, and the values of the angle α of the mounting forms of the pump structures are different from each other.

The pump structure adopts split type first pump body 2000 with second pump body 1000 etc. package forming, and with first pipe 2300 with the free angle mode of second pipe 1200 carries out second flange 1100 with the connection of first lower flange 2200, consequently can design to get first pipe 2300 with the pump structure of the different contained angles of second pipe 1200 avoids different pump structures to adopt different moulds to make, and the higher problem of input cost that brings can also reach energy saving and emission reduction's effect to a certain extent.

As shown in fig. 3, the second flange 1100 is provided with a plurality of second mounting holes spaced circumferentially, the first lower flange 2200 is provided with a plurality of first lower mounting holes spaced circumferentially, and the second mounting holes correspond to the first lower mounting holes and are connected by fasteners 1001;

the motor 4000 comprises a motor flange 4100, a plurality of motor mounting holes are formed in the motor flange 4100 at intervals, a plurality of first upper mounting holes are formed in the first upper flange 2100 at intervals, and the first upper mounting holes correspond to the motor mounting holes and are connected through fasteners 1001.

It can be seen that the motor flange 4100 and the first upper flange 2100 are secured by fasteners 1001 and the second flange 1100 and the first lower flange 2200 are also secured by fasteners 1001, the fasteners 1001 including but not limited to bolts. In the process of connecting the motor flange 4100 with the first upper flange 2100 by the fastener 1001, since the second flange 1100 is provided with a plurality of second mounting holes arranged at intervals of circumference, the first lower flange 2200 is provided with a plurality of first lower mounting holes arranged at intervals of circumference, that is, the first mounting holes and the first lower mounting holes are uniformly distributed, the motor 4000 can be connected with the first pump body 2000 by adjusting the circumferential position of the first pipe 2300 relative to the axis of the motor 4000, and the first pump body 2000 can be freely connected with the motor 4000 around the axis of the motor 4000. The same way, the circumferential position of the second tube 1200 relative to the axis of the motor 4000 is adjusted, or the second tube 1200 is directly referred to, the included angle between the second tube 1200 and the first tube 2300 is adjusted, the second mounting hole in the current state is guaranteed to correspond to the first lower mounting hole, then the second tube is connected through the fastener 1001, the second pump body 1000 is freely detachably connected with the first pump body 2000 around the axis of the motor 4000, and further the connection of the first pump body 2000 and the second pump body 1000 is realized in a free angle mode by the first tube 2300 and the second tube 1200.

The motor 4000 may be a radial motor or an axial field motor, and the motor flange 4100 may be integrally connected or detachably connected to the motor body. The output shaft 4001 of the motor 4000 is located in the direction of the motor flange 4100, and the output shaft 4001 is connected with the impeller 5000 to drive the impeller 5000 to rotate, and the impeller 5000 is located inside the first pump body 2000.

As shown in fig. 1 to 3, the pump structure further includes an adapter 3000, and the adapter 3000 includes:

the adaptor motor flange 3100 is provided with a plurality of adaptor motor mounting holes which are circumferentially arranged at intervals, the adaptor motor flange 3100 is connected with the motor flange 4100, and the adaptor motor mounting holes correspond to the motor mounting holes and are connected through fasteners 1001;

the pump assembly comprises a transfer pump flange 3200, wherein a plurality of transfer pump mounting holes are formed in the transfer pump flange 3200 at intervals along the circumference, the transfer pump flange 3200 is connected with a first upper flange 2100, and the transfer pump mounting holes correspond to the first upper mounting holes and are connected through a fastener 1001;

an adapter sidewall 3400, the adapter sidewall 3400 extending between an outer edge of the adapter motor flange 3100 and an outer edge of the adapter pump flange 3200.

The adapter 3000 is connected between the motor 4000 and the first pump body 2000, and the adapter 3000 is tapered, that is, the cross-sectional dimension of the adapter sidewall 3400 gradually decreases from the motor 4000 to the first pump body 2000.

Referring to fig. 1, in addition to the connection between the motor 4000 and the first pump 2000 by the fastener 1001, the adaptor motor flange 3100 is clamped to the motor flange 4100, and the adaptor pump flange 3200 is clamped to the first upper flange 2100, so as to ensure the stability of the structural connection. In addition, a sealing ring may be disposed between the adapter pump flange 3200 and the first upper flange 2100 to improve sealability.

Referring to fig. 1 and 2, the adapter 3000 further includes an inner ring 3300, the inner edge of the adapter pump flange 3200 extends toward the direction of the adapter motor flange 3100 to form the inner ring 3300, and the output shaft 4001 of the motor 4000 passes through the inner ring 3300 and is connected with an impeller 5000, and the impeller 5000 is located inside the first pump body 2000.

The transfer pump flange 3200 is recessed toward the transfer motor flange 3100 to form a conical ring surface, and a certain distance is kept between the inner ring 3300 and the motor flange 4100.

As shown in fig. 2, the pump structure further includes:

a sleeve 6300, the sleeve 6300 being sleeved between the output shaft 4001 and the inner ring 3300;

an impeller nut 6400, the impeller nut 6400 being threadably coupled to the end of the output shaft 4001 such that the impeller 5000 is captured between the bushing 6300 and the impeller nut 6400.

Wherein the center of the impeller 5000 is an open hole structure, the shaft sleeve 6300 is first sleeved on the output shaft 4001, then the output shaft 4001 passes through the open hole structure of the center of the impeller 5000, and the impeller nut 6400 is screwed at the end of the output shaft 4001 to fix the impeller 5000 on the output shaft 4001, at this time, the impeller 5000 is axially positioned between the shaft sleeve 6300 and the impeller nut 6400.

Referring to fig. 2, an inner wall of the inner ring 3300 is provided with an inner ring step 3310, and an end of the shaft sleeve 6300, which is far away from the impeller 5000, is clamped between the inner ring step 3310 and the output shaft 4001.

With continued reference to fig. 2, a key 6500 is provided on the outer wall of the output shaft 4001, and the key 6500 is engaged with the inner wall of the central opening structure of the impeller 5000, so as to radially position the impeller 5000.

As shown in fig. 2, the pump structure further includes:

a stationary ring 6100, wherein the stationary ring 6100 is sleeved between the shaft sleeve 6300 and the inner ring 3300, an inner ring step 3310 is provided on an inner wall of the inner ring 3300, and two axial ends of the stationary ring 6100 respectively abut against the inner ring step 3310 and the movable ring 6200;

the movable ring 6200 is sleeved between the shaft sleeve 6300 and the inner ring 3300, a shaft sleeve step 6310 is arranged on the outer wall of the shaft sleeve 6300, and two axial ends of the movable ring 6200 are respectively abutted against the shaft sleeve step 6310 and the stationary ring 6100.

The stationary ring 6100 abuts the inner wall of the inner ring step 3310, and a gap is maintained between the movable ring 6200 and the inner ring 3300. When the pump structure operates, the static ring 6100 which is tightly pressed by the rotating movable ring 6200 is used for sealing, the formed friction pair is lubricated and cooled by liquid conveyed by the pump, and the friction pair refers to a system formed by a pair of objects which are in contact with each other and have relative friction motion. Wherein the interior of the inner ring 3300 is in communication with the interior of the first pump body 2000, so that the transmission fluid entering the interior of the first pump body 2000 lubricates and cools the friction pair formed by the movable ring 6200 and the stationary ring 6100.

As shown in fig. 1, the first pump 2000 includes a first upper flange 2100, a first lower flange 2200, a first pump sidewall 2400, and a first pipe 2300, the first pump sidewall 2400 being connected to an outer edge of the first upper flange 2100 and an outer edge of the first lower flange 2200, and the first pipe 2300 being connected to the first pump sidewall 2400 and communicating with an inside of the first pump sidewall 2400.

As shown in fig. 2, the first lower flange 2200 includes a first lower inner ring 2210 and a first lower outer ring 2220, the impeller 5000 includes an impeller body 5100 and an impeller mouth ring 5200 which are connected, the impeller body 5100 is located between the first upper flange 2100 and the first lower flange 2200, the impeller mouth ring 5200 is located inside the first lower inner ring 2210, the first lower outer ring 2220 is abutted to the second flange 1100, a sealing ring 6600 is disposed between the first lower inner ring 2210 and the second flange 1100, and the sealing ring 6600 is in clearance fit with the impeller mouth ring 5200.

The cross section of the sealing ring 6600 is L-shaped, so that not only the first lower inner ring 2210 and the second flange 1100 are sealed, but also a very small gap is formed between the sealing ring 6600 and the impeller opening ring 5200 for sealing.

As shown in fig. 3, the second tube 1200 has a semi-spiral shape. The second pipe 1200 may be used as a water inlet channel, and the first pipe 2300 may be used as a water outlet channel, that is, when the motor 4000 drives the impeller 5000 to rotate, the liquid is conveyed to enter the second pump body 1000 through the second pipe 1200, then enter the first pump body 2000, and finally be discharged through the first pipe 2300. Of course, by reversing the motor 4000, the delivery liquid may enter from the first tube 2300 and then be discharged from the second tube 1200.

As shown in fig. 1 and 3, the motor 4000, the first pump body 2000, and the second pump body 1000 are disposed in a vertical direction. The included angle α between the first tube 2300 and the second tube 1200 may be between 0 ° and 180 °, referring to fig. 1 and 2, in the installation configuration of the pump structure of the present embodiment, the included angle α between the first tube 2300 and the second tube 1200 is 180 °, that is, the first tube 2300 and the second tube 120 are coaxially arranged, so as to obtain a vertical pump structure.

The pump structure assembly process is as follows:

connecting the adapter 3000 to a motor flange 4100 of the motor 4000 through the adapter motor flange 3100, and arranging the output shaft 4001 of the motor 4000 through the adapter 3000;

connecting the impeller 5000 to an output shaft 4001 of the motor 4000;

connecting the first pump body 2000 to the adapter pump flange 3200 of the adapter body 3000 through the first upper flange 2100;

the second flange 1100 of the second pump body 1000 is connected to the first lower flange 2200 of the first pump body 2000 in such a manner that the second pipe 1200 is coaxial with the first pipe 2300.

In summary, the pump structure is formed by assembling the first pump body 2000 and the second pump body 1000 in a split manner, and the first pipe 2300 and the second pipe 1200 are connected with the second flange 1100 and the first lower flange 2200 in a free angle manner, so that the pump structure with different included angles between the first pipe 2300 and the second pipe 1200 can be designed, the first pump body 2000 and the second pump body 1000 can be manufactured by the same set of dies, pumps with different structures can be obtained in a free angle assembling manner, the input cost is reduced, the energy saving and emission reduction effects can be achieved to a certain extent, and the pump structure has the characteristics of simple structure, convenient installation, excellent performance and the like when the pump structure is applied to different environments according to requirements.

Second embodiment

As shown in fig. 4 and 5, the pump structure of the second embodiment is different from the first embodiment in that an included angle α between the first pipe 2300 and the second pipe 1200 is 90 ° so as to obtain a vertical pipe elbow pump, and the installation form of the current pump structure can be used as a pipe elbow to be connected in a pipeline for pressurizing, so that the pressure loss of a system loop is reduced due to the elimination of a real pipe elbow, and energy saving and emission reduction are achieved.

Third embodiment

As shown in fig. 6 and 7, the pump structure of the third embodiment is different from the second embodiment in that the motor 4000, the first pump body 2000 and the second pump body 1000 are disposed in a lateral direction, and a support seat 7000 is connected to an outer wall of the first pump body 2000 to obtain a horizontal pump structure.

The outer wall of the first pump body 2000 is provided with a foot ear 2500, and the support base 7000 is connected with the foot ear 2500. Specifically, the number of the supporting bases 7000 and the number of the bottom lugs 2500 are two, and each supporting base 7000 is respectively corresponding to one bottom lug 2500.

As shown in fig. 6, the support base 7000 includes two clamping plates 7100 and a bottom plate 7200, the two clamping plates 7100 are connected to the bottom plate 7200, the bottom ear 2500 is inserted between the two clamping plates 7100 and is fixed by a screw, and the bottom plate 7200 can be fixed on the workbench by a screw.

The two support seats 7000 are angled and symmetrically arranged below the second pump body 1000 to ensure a stable arrangement of the pump structure. The first tube 2300 is located above the second pump body 1000, an included angle between the second tube 1200 and the first tube 2300 is 90 °, and the second tube 1200 faces to the side of the motor 4000, that is, the conveying liquid is sucked from the side, unlike the end suction pump which sucks the conveying liquid from the motor 4000 in the axial direction, so that the installation form of the current pump structure can be used as a side suction single stage single suction pump.

The above-described embodiments are only for illustrating the technical spirit and features of the present utility model, and it is intended to enable those skilled in the art to understand the content of the present utility model and to implement it accordingly, and the scope of the present utility model as defined by the present embodiments should not be limited only by the present embodiments, i.e. equivalent changes or modifications made in accordance with the spirit of the present utility model will still fall within the scope of the present utility model.

Claims (10)

1. A pump structure, comprising:

a motor (4000);

a first pump body (2000), the first pump body (2000) comprising a first upper flange (2100), a first lower flange (2200) and a first tube (2300), the first tube (2300) being connected between the first upper flange (2100) and the first lower flange (2200), the first upper flange (2100) being connected to the motor (4000);

the second pump body (1000), second pump body (1000) are including second flange (1100) and second pipe (1200) that meet, second flange (1100) with first lower flange (2200) are connected, first pipe (2300) with form an angle alpha between second pipe (1200), the pump structure has at least two installation forms, and each the alpha angle numerical value of the installation form of pump structure is different.

2. The pump structure according to claim 1, wherein the second flange (1100) is provided with a plurality of second mounting holes arranged at intervals along the circumference, the first lower flange (2200) is provided with a plurality of first lower mounting holes arranged at intervals along the circumference, and the second mounting holes correspond to the first lower mounting holes and are connected through a fastener (1001);

the motor (4000) comprises a motor flange (4100), motor mounting holes are formed in the motor flange (4100) at intervals of a plurality of circumferences, first upper mounting holes are formed in the first upper flange (2100) at intervals of a plurality of circumferences, and the first upper mounting holes correspond to the motor mounting holes and are connected through fasteners (1001).

3. The pump structure of claim 2, further comprising an adapter (3000), the adapter (3000) comprising:

the motor comprises a transfer motor flange (3100), wherein a plurality of transfer motor mounting holes are formed in the transfer motor flange (3100) at intervals in the circumference, the transfer motor flange (3100) is connected with the motor flange (4100), and the transfer motor mounting holes correspond to the motor mounting holes and are connected through fasteners (1001);

transfer pump flange (3200), set up the transfer pump mounting hole that a plurality of circumference interval set up on transfer pump flange (3200), transfer pump flange (3200) with first flange (2100) are connected, transfer pump mounting hole with first upper mounting hole corresponds to connect through fastener (1001).

4. A pump structure according to claim 3, wherein the adapter body (3000) further comprises an inner ring (3300), the inner edge of the adapter pump flange (3200) extends towards the adapter motor flange (3100) to form the inner ring (3300), and the output shaft (4001) of the motor (4000) passes through the inner ring (3300) and is connected with an impeller (5000), and the impeller (5000) is located inside the first pump body (2000).

5. The pump structure of claim 4, further comprising:

a sleeve (6300), the sleeve (6300) being sleeved between the output shaft (4001) and the inner ring (3300);

-an impeller nut (6400), said impeller nut (6400) being screw-connected to the end of said output shaft (4001), said impeller (5000) being confined between said sleeve (6300) and said impeller nut (6400).

6. The pump structure of claim 5, further comprising:

the static ring (6100), the static ring (6100) is sleeved between the shaft sleeve (6300) and the inner ring (3300), an inner ring step (3310) is arranged on the inner wall of the inner ring (3300), and two axial ends of the static ring (6100) are respectively abutted against the inner ring step (3310) and the movable ring (6200);

the movable ring (6200) is sleeved between the shaft sleeve (6300) and the inner ring (3300), a shaft sleeve step (6310) is arranged on the outer wall of the shaft sleeve (6300), and two axial ends of the movable ring (6200) are respectively abutted to the shaft sleeve step (6310) and the stationary ring (6100).

7. The pump structure of claim 4, wherein the first lower flange (2200) comprises a first lower inner ring (2210) and a first lower outer ring (2220), the impeller (5000) comprises an impeller body (5100) and an impeller mouth ring (5200) which are connected, the impeller body (5100) is located between the first upper flange (2100) and the first lower flange (2200), the impeller mouth ring (5200) is located inside the first lower inner ring (2210), the first lower outer ring (2220) is abutted against the second flange (1100), a sealing ring (6600) is arranged between the first lower inner ring (2210) and the second flange (1100), and the sealing ring (6600) is in clearance fit with the impeller mouth ring (5200).

8. The pump structure according to claim 1, characterized in that the motor (4000), the first pump body (2000) and the second pump body (1000) are arranged in a vertical direction;

or the motor (4000), the first pump body (2000) and the second pump body (1000) are arranged along the transverse direction, and a supporting seat (7000) is connected to the outer wall of the first pump body (2000).

9. Pump structure according to claim 8, characterized in that the outer wall of the first pump body (2000) is provided with a foot lug (2500), the support base (7000) being connected to the foot lug (2500).

10. The pump structure according to any one of claims 1 to 9, characterized in that the angle α between the first tube (2300) and the second tube (1200) is between 0 and 180 °.