CN219605678U - Water inlet device based on centrifugal pump - Google Patents

Abstract

The utility model discloses a water inlet device based on a centrifugal pump, which comprises: a centrifugal pump body; and a water inlet device arranged at the water inlet end of the centrifugal pump body; the water inlet device comprises a connecting sleeve and a mounting pipe arranged at the end part of the connecting sleeve far away from the centrifugal pump body; and an elastic buffer device arranged between the mounting pipe and the telescopic pipe; the self-cleaning filter assembly is arranged inside the mounting tube. According to the utility model, through the elastic buffer device and the self-cleaning filter assembly, the connection stability of the connecting piece and the external water inlet pipe is improved by buffering the water pressure, and the self-cleaning process of the filter assembly is realized, so that on one hand, the influence of impurities on the filter assembly is reduced, the filtering effect of the device is improved, and on the other hand, the water flow flux of the water inlet device is also ensured.

Description

Water inlet device based on centrifugal pump

Technical Field

The utility model relates to the technical field of centrifugal pumps, in particular to a water inlet device based on a centrifugal pump.

Background

The centrifugal pump is a pump which conveys liquid by the centrifugal force generated when the impeller rotates, and the impeller blades rotating at high speed are utilized to drive water to rotate, so that the water is thrown out, and the purpose of conveying is achieved. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to do high-speed rotation movement, the water is centrifugally moved and thrown to the outer edge of the impeller, and the water flows into the water pressing pipeline of the water pump through the runner of the volute pump shell. Centrifugal pumps are available in various forms such as vertical, horizontal, single-stage, multi-stage, single-suction, double-suction, self-suction and the like. The liquid in the impeller is pushed by the blades to rotate together with the blades, and the centrifugal force generated by the rotation makes the liquid move outwards from the center and obtains momentum;

the utility model discloses a damping water inlet device (202020965322.0) of centrifugal pump as chinese patent type, including the centrifugal pump host computer, the bottom of centrifugal pump host computer sets up a damping support device, and the centrifugal pump host computer sets up a inlet tube and a outlet pipe, the bottom of inlet tube sets up a water inlet joint, the inside terminal surface open-ended water inlet interface that sets up down of water inlet joint, install an elastic filter screen in the water inlet interface, the bottom of elastic filter screen connects a connecting pipe, the bottom and the water source contact of connecting pipe, the connecting pipe is installed perpendicularly on an air duct, damping support device is connected to the air inlet end of air duct. The centrifugal pump has very good damping performance, and utilizes vibration force to conduct the filter screen, so that the problem that meshes at the water inlet are easy to block is solved;

but in the practical use, the filter screen jam's problem, the treatment effect is not ideal, and need to pull down the filter screen and wash, periodic replacement or wash, increase the human cost to the long-time vibration easily influences the connection stability between each structure.

Disclosure of Invention

The utility model aims to provide a water inlet device based on a centrifugal pump, which is characterized in that the water inlet device is provided with an elastic buffer device and a self-cleaning filter assembly, so that the buffer water pressure improves the connection stability of a connecting piece and an external water inlet pipe, and the self-cleaning process of the filter assembly is realized, thereby reducing the influence of impurities on the filter assembly, improving the filtering effect of the device and ensuring the water flow flux of the water inlet device.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a centrifugal pump-based water intake apparatus comprising: a centrifugal pump body; the water inlet device is arranged at the water inlet end of the centrifugal pump body and is used for being externally connected with a water inlet pipe; the water inlet device comprises a connecting sleeve and a mounting pipe arranged at the end part of the connecting sleeve far away from the centrifugal pump body, wherein a movable telescopic pipe is arranged in the mounting pipe, and the end part of the telescopic pipe far away from the centrifugal pump body extends to the outside of the mounting pipe and is connected with an external water inlet pipe through a connecting piece; the elastic buffer device is arranged between the mounting pipe and the telescopic pipe and is used for buffering water pressure; the self-cleaning filter assembly is arranged inside the mounting tube and is used for filtering impurities.

Preferably, the elastic buffer device comprises a first connecting ring and a second connecting ring which are respectively fixed on the outer walls of the mounting pipe and the telescopic pipe, and a plurality of first springs which are arranged on the opposite surfaces of the first connecting ring and the second connecting ring and are used for buffering when the telescopic pipe moves.

Preferably, the self-cleaning filter assembly comprises a transmission sleeve which is arranged in the telescopic pipe and can stretch and rotate, an installation sleeve is fixedly connected to the end part of the transmission sleeve, which is close to the connecting sleeve, and a detachable filter structure which is arranged on the end part of the installation sleeve, which is close to the connecting sleeve, is used for filtering impurities; the cross support is arranged on the inner wall of the connecting sleeve, is close to the side wall of the mounting sleeve and is arranged with the brush, and is used for cleaning the filtering structure when the filtering structure rotates and contacts with the brush; the device also comprises a driving device arranged between the telescopic pipe and the mounting pipe and used for driving the filtering structure to operate.

Preferably, the detachable filter structure comprises a step part which is arranged at the end part of the mounting sleeve close to the connecting sleeve; the filter screen is arranged in the mounting ring and is used for filtering impurities; the elastic mounting structure is arranged on the step part and is used for mounting the mounting ring on the step part.

Preferably, the elastic mounting structure comprises a plurality of mounting posts arranged on the step part; the mounting holes are formed in the mounting ring, the second springs are arranged on the outer wall of the mounting ring and correspond to the mounting holes, the mounting posts arranged on the step part correspond to the mounting holes formed in the mounting ring one by one, and the mounting posts can penetrate through the corresponding mounting holes and the second springs; the one end that the erection column kept away from the installation cover has still seted up the external screw thread to and the bolt of external screw thread threaded connection.

Preferably, the driving device comprises a sliding groove formed in the outer wall of the transmission sleeve, a movable sliding block is arranged in the sliding groove and can be fixedly connected with a mounting piece, and the mounting piece is arranged in a mounting groove formed in the inner wall of the telescopic pipe; also comprises two annular grooves which are arranged on the end part of the mounting pipe close to the mounting sleeve and a limit groove which is arranged on the inner wall of the mounting pipe and communicated with the two annular grooves, the limiting block is fixed on the outer wall of the mounting sleeve, and is respectively used for rotating and limiting movement of the mounting sleeve when the limiting block is respectively arranged in the annular groove and the limiting groove.

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

according to the utility model, through the elastic buffer device and the self-cleaning filter assembly, the connection stability of the connecting piece and the external water inlet pipe is improved by buffering the water pressure, and the self-cleaning process of the filter assembly is realized, so that on one hand, the influence of impurities on the filter assembly is reduced, the filtering effect of the device is improved, and on the other hand, the water flow flux of the water inlet device is also ensured.

Drawings

FIG. 1 is a schematic view of a first perspective view of the present utility model;

FIG. 2 is a schematic view of a second perspective view of FIG. 1;

FIG. 3 is a schematic view of the partially disassembled structure of FIG. 1;

FIG. 4 is a schematic view of the second perspective view of FIG. 3;

FIG. 5 is a schematic view of the partially disassembled structure of FIG. 3;

FIG. 6 is a schematic view of the second perspective view of FIG. 5;

fig. 7 is an enlarged schematic view of the structure at a.

In the figure: 1. a centrifugal pump body; 2. connecting sleeves; 3. installing a pipe; 4. a first connection ring; 5. a second connecting ring; 6. a first spring; 7. a connecting piece; 8. a telescopic tube; 9. a mounting member; 10. a transmission sleeve; 11. a chute; 12. a limiting block; 13. a mounting sleeve; 14. an annular groove; 15. a mounting ring; 16. a mounting hole; 17. a limit groove; 18. a filter screen; 19. a second spring; 20. a mounting column; 21. a brush; 22. a bolt; 23. a cross bracket; 24. an external thread; 25. a sliding block.

Detailed Description

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 7, the present utility model preferably provides the following technical solutions: a centrifugal pump-based water intake apparatus comprising: a centrifugal pump body 1; the water inlet device is arranged at the water inlet end of the centrifugal pump body 1 and is used for being externally connected with a water inlet pipe; the water inlet device comprises a connecting sleeve 2 and a mounting pipe 3 arranged at the end part of the connecting sleeve 2 far away from the centrifugal pump body 1, a movable telescopic pipe 8 is arranged in the mounting pipe 3, and the end part of the telescopic pipe 8 far away from the centrifugal pump body 1 extends to the outside of the mounting pipe 3 and is connected with an external water inlet pipe through a connecting piece 7; and elastic buffer means provided between the mounting tube 3 and the telescopic tube 8 for buffering the water pressure; and also comprises a self-cleaning filter assembly arranged inside the mounting tube 3 for filtering impurities.

Through elastic buffer and self-cleaning filter unit that sets up, can be when centrifugal pump body 1 takes out water, can be when the water pressure increases, when buffering water pressure, and realize filter unit's self-cleaning process, concrete like figure 3, because flexible pipe 8 can be at the inside concertina movement of installation pipe 3, through the elastic buffer who sets up between the two, can make flexible pipe 8 carry out self-adaptation buffering, thereby the stability of connecting piece 7 and external inlet tube connection of flexible pipe 8 tip has been improved, and through the filter unit who sets up, and its structural feature, through centrifugal pump body 1's suction is too low, when making water pressure grow, even make flexible pipe 8 to the inside removal of installation pipe 3, and start filter unit's self-cleaning function, thereby reduce impurity to filter unit's influence, when improving the filter effect of device, and guaranteed this water inlet device circulation effect.

Further, the elastic buffer device comprises a first connecting ring 4 and a second connecting ring 5 which are respectively fixed on the outer walls of the mounting tube 3 and the telescopic tube 8, and a plurality of first springs 6 which are arranged on the opposite surfaces of the first connecting ring 4 and the second connecting ring 5 and are used for buffering when the telescopic tube 8 moves.

As shown in fig. 2, the telescopic tube 8 can move inside the mounting tube 3 in a telescopic manner, and the first connecting ring 4 and the second connecting ring 5 are respectively mounted on the tube 3 and the telescopic tube 8 in a fixed connection manner, so that the movement of the telescopic tube 8 can be buffered through the plurality of first springs 6 arranged between the first connecting ring 4 and the second connecting ring 5, and the stability of the connection piece 7 and the external water inlet pipe connection is improved.

Further, the self-cleaning filter assembly comprises a transmission sleeve 10 which is arranged in the telescopic pipe 8 and can stretch and rotate, an installation sleeve 13 is fixedly connected to the end part of the transmission sleeve 10, which is close to the connecting sleeve 2, and a detachable filter structure which is arranged on the end part of the installation sleeve 13, which is close to the connecting sleeve 2, is used for filtering impurities; the filter comprises a connecting sleeve 2, a brush 21 and a cross bracket 23, wherein the cross bracket 23 is arranged on the inner wall of the connecting sleeve 2, and the cross bracket 23 is close to the side wall of the mounting sleeve 13 and is used for cleaning the filter structure when the filter structure rotates and contacts with the brush 21; and a driving device arranged between the telescopic pipe 8 and the mounting pipe 3 and used for driving the filtering structure to operate.

Through the self-cleaning filter assembly that sets up, as shown in fig. 3-6, because drive sleeve 10 is connected with flexible pipe 8, its tip that is close to adapter sleeve 2 fixedly connected with installation cover 13 again, consequently when flexible pipe 8 is under the impact of water pressure and flexible removal, can drive installation cover 13 removal, thereby drive detachable filter structure and be close to or keep away from setting up at the inside brush 21 of adapter sleeve 2, as shown in fig. 7, when water pressure is big promptly, and through drive arrangement's effect and its structural feature, the filter structure can be close to parallel rotation to brush 21 this moment, consequently brush 21 can clean filter structure, thereby improve filter equipment's filter effect, and guarantee water flow.

Further, the detachable filter structure comprises a step part which is arranged at the end part of the mounting sleeve 13 close to the connecting sleeve 2; the device also comprises a mounting ring 15, wherein the mounting ring 15 is matched with the step part, and a filter screen 18 is arranged inside the mounting ring 15 and is used for filtering impurities; also included is an elastic mounting structure provided on the step for mounting the mounting ring 15 to the step.

With reference to fig. 7, the installation ring 15 is matched with the step part formed at the end of the installation sleeve 13, so that the filter screen 18 in the middle of the installation ring 15 can filter water flowing to the connection sleeve 2 from the installation sleeve 13, and the installation ring 15 can be stably installed on the step part through the action of the elastic installation structure, so that the installation stability is improved.

Further, the elastic mounting structure includes a plurality of mounting posts 20 provided on the stepped portion; the mounting holes 16 are formed in the mounting ring 15, the second springs 19 are arranged on the outer wall of the mounting ring 15 and correspond to the mounting holes 16, the mounting posts 20 arranged on the step part correspond to the mounting holes 16 formed in the mounting ring 15 one by one, and the mounting posts can penetrate through the corresponding mounting holes 16 and the second springs 19; the end of the mounting post 20 remote from the mounting sleeve 13 is also provided with external threads 24 and a bolt 22 threadedly connected to the external threads 24.

Because the mounting posts 20 are in one-to-one correspondence with the mounting holes 16 and can pass through the corresponding mounting holes 16 and the second springs 19, when the bolts 22 are rotated, the bolts 22 enter the external threads 24 of the mounting posts 20 and compress the corresponding second springs 19, and at the moment, the second springs 19 have a force for pushing the mounting ring 15 to the step part of the mounting sleeve 13, so that the mounting stability of the mounting ring 15 and the step part is improved, as shown in fig. 7, in the embodiment, the mounting posts 20 are only provided with the external threads 24 at one end, namely the smooth end of the mounting holes 16 on the mounting posts 20, and the purpose is that; the filter screen 18 can slightly buffer under the impact of water pressure, so that the problem that impurities are blocked on the filter screen is solved.

Further, the driving device comprises a sliding groove 11 arranged on the outer wall of the transmission sleeve 10, a movable sliding block 25 is arranged in the sliding groove 11, the sliding block 25 can be fixedly connected with a mounting piece 9, and the mounting piece 9 is arranged in a mounting groove formed in the inner wall of the telescopic pipe 8; the device further comprises two annular grooves 14 which are formed in the end portion of the mounting tube 3 close to the mounting sleeve 13, a limiting groove 17 which is formed in the inner wall of the mounting tube 3 and communicated with the two annular grooves 14, and a limiting block 12 which is fixed on the outer wall of the mounting sleeve 13, wherein the limiting block 12 is respectively used for rotating and limiting movement of the mounting sleeve 13 when being respectively arranged in the annular grooves 14 and the limiting groove 17.

Through the annular groove 14 and the spacing groove 17 of seting up, as shown in fig. 5, fig. 6, and the spout 11 has also been setted up to drive cover 10 lateral wall, the inside slider 25 that sets up of spout 11 is connected with flexible pipe 8 through mounting 9, therefore when flexible pipe 8 is at the inside concertina movement of installation pipe 3, slider 25 can slide in spout 11 inside this moment, thereby drive the rotation of drive cover 10, and then drive stopper 12 and remove, spacing groove 17 and annular groove 14 of seting up are cooperated, limit stopper 12 can carry out spacing, thereby make installation cover 13 only can flexible removal, thereby drive filter structure to brush 21 be close to or keep away from, when water pressure promotes flexible pipe 8 and drives installation cover 13 to be close to adapter sleeve 2, filter structure can with brush 21 contact, stopper 12 can get into the annular groove 14 inside that is close to adapter sleeve 2 this moment, thereby make filter structure rotate, the filter screen 18 that filter structure place can be cleared up to the brush 21, when the water pressure diminishes, can reset.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The detachable mounting mode is various, for example, the detachable mounting mode can be matched with the buckle through plugging, for example, the detachable mounting mode can be realized through a bolt connection mode, and the like.

The conception, specific structure, and technical effects produced by the present utility model are clearly and completely described above in connection with the embodiments and the drawings so as to fully understand the objects, features, and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model. In addition, all coupling/connection relationships mentioned herein do not refer to direct connection of the components, but rather, refer to the fact that a more optimal coupling structure may be formed by adding or subtracting coupling aids depending on the particular implementation.

The foregoing embodiments are provided for further explanation of the present utility model and are not to be construed as limiting the scope of the present utility model, and some insubstantial modifications and variations of the present utility model, which are within the scope of the utility model, will be suggested to those skilled in the art in light of the foregoing teachings.

Claims (6)

1. Water inlet device based on centrifugal pump, its characterized in that includes:

a centrifugal pump body (1);

the water inlet device is arranged at the water inlet end of the centrifugal pump body (1) and is used for being externally connected with a water inlet pipe;

the water inlet device comprises a connecting sleeve (2) and a mounting pipe (3) arranged at the end part of the connecting sleeve (2) far away from the centrifugal pump body (1), a movable telescopic pipe (8) is arranged in the mounting pipe (3), and the end part of the telescopic pipe (8) far away from the centrifugal pump body (1) extends to the outside of the mounting pipe (3) and is connected with an external water inlet pipe through a connecting piece (7);

the elastic buffer device is arranged between the mounting pipe (3) and the telescopic pipe (8) and is used for buffering water pressure;

the self-cleaning filter assembly is arranged inside the mounting pipe (3) and is used for filtering impurities.

2. The centrifugal pump-based water intake apparatus of claim 1, wherein:

the elastic buffer device comprises a first connecting ring (4) and a second connecting ring (5) which are respectively fixed on the outer walls of the mounting pipe (3) and the telescopic pipe (8), and a plurality of first springs (6) which are arranged on the opposite surfaces of the first connecting ring (4) and the second connecting ring (5) and are used for buffering when the telescopic pipe (8) moves.

3. The centrifugal pump-based water intake apparatus of claim 1, wherein:

the self-cleaning filter assembly comprises a transmission sleeve (10) which is arranged in the telescopic pipe (8) and can stretch and rotate, an installation sleeve (13) is fixedly connected to the end part of the transmission sleeve (10) close to the connecting sleeve (2), and a detachable filter structure which is arranged on the end part of the installation sleeve (13) close to the connecting sleeve (2) is used for filtering impurities;

the filter comprises a connecting sleeve (2), a cross bracket (23) arranged on the inner wall of the connecting sleeve, and a brush (21) arranged on the side wall of the cross bracket (23) close to the mounting sleeve (13), wherein the brush is used for cleaning the filter structure when the filter structure rotates and contacts with the brush (21);

the filter also comprises a driving device arranged between the telescopic pipe (8) and the mounting pipe (3) and used for driving the filter structure to operate.

4. A centrifugal pump-based water intake apparatus according to claim 3, wherein:

the detachable filter structure comprises a step part which is arranged at the end part of the mounting sleeve (13) close to the connecting sleeve (2);

the filter screen is characterized by further comprising a mounting ring (15), wherein the mounting ring (15) is matched with the step part, and a filter screen (18) is arranged in the mounting ring (15) and is used for filtering impurities;

also comprises an elastic mounting structure arranged on the step part and used for mounting the mounting ring (15) on the step part.

5. The centrifugal pump-based water intake apparatus of claim 4, wherein:

the elastic mounting structure comprises a plurality of mounting posts (20) arranged on the step part;

the mounting holes (16) are formed in the mounting ring (15) and the second springs (19) are arranged on the outer wall of the mounting ring (15) corresponding to the mounting holes (16), and the mounting posts (20) arranged on the step part are in one-to-one correspondence with the mounting holes (16) formed in the mounting ring (15) and can penetrate through the corresponding mounting holes (16) and the second springs (19);

and one end of the mounting column (20) far away from the mounting sleeve (13) is also provided with an external thread (24) and a bolt (22) in threaded connection with the external thread (24).

6. A centrifugal pump-based water intake apparatus according to claim 3, wherein:

the driving device comprises a sliding groove (11) formed in the outer wall of the transmission sleeve (10), a movable sliding block (25) is arranged in the sliding groove (11), the sliding block (25) can be fixedly connected with a mounting piece (9), and the mounting piece (9) is arranged in a mounting groove formed in the inner wall of the telescopic pipe (8);

the mounting sleeve comprises a mounting sleeve body and is characterized by further comprising two annular grooves (14) formed in the end portion of the mounting sleeve body (3) close to the mounting sleeve (13), limiting grooves (17) formed in the inner wall of the mounting sleeve body and communicated with the two annular grooves (14), and limiting blocks (12) fixed on the outer wall of the mounting sleeve body (13), wherein when the limiting blocks (12) are respectively arranged in the annular grooves (14) and the limiting grooves (17), the limiting blocks are respectively used for rotating and limiting movement of the mounting sleeve body (13).