CN220185379U

CN220185379U - Vertical multistage pump

Info

Publication number: CN220185379U
Application number: CN202321494729.XU
Authority: CN
Inventors: 梁业鑫; 陈思学; 朱旭东; 于浩然; 王力; 高军; 孙策
Original assignee: Dalian Source Pumps Co ltd
Current assignee: Dalian Source Pumps Co ltd
Priority date: 2023-06-13
Filing date: 2023-06-13
Publication date: 2023-12-15
Anticipated expiration: 2033-06-13

Abstract

The utility model relates to the technical field of centrifugal pumps, and discloses a vertical multistage pump, which solves the problem that the inside of the existing vertical multistage pump is easy to be blocked. The utility model can be convenient for filter the inflow water of the water inlet through the filtering structure, when in use, the water inlet is connected with the water source, at the moment, the water source enters the shell, the water source passes through the filtering box, the filter screen in the filtering box can filter impurities in the water source, when the pump body is maintained, the filtering box is cleaned, at the moment, the pull ring is pulled, the pull ring pulls the pull rope, the pull rope drives the insert block to retract into the movable cavity, at the moment, the insert block is separated from the limiting hole, then the mounting block can be lifted, at the moment, the mounting block drives the filtering box to be pulled out from the shell, and then the interior of the filtering box can be cleaned.

Description

Vertical multistage pump

Technical Field

The utility model relates to the technical field of centrifugal pumps, in particular to a vertical multistage pump.

Background

The vertical multistage pump is a centrifugal pump, has the advantages of compact structure, small volume, light weight and the like, is used more, can be used for conveying water sources, and has a supercharging effect and can convey the water sources to high-rise buildings.

The Chinese patent grant publication No. CN202348683U, publication day 2012, 07 and 25, discloses a vertical multistage pump, which comprises a middle section, guide vanes, impellers, sliding bearing pairs and a reverse spiral pressure reducing sealing sleeve, wherein the flow passage of the middle section is of a symmetrical reverse double-volute chamber structure, the impellers are provided with back blades for balancing axial force, and the sliding bearing pairs are made of hard alloy. The utility model realizes the integrated design of the middle guide vane, reduces the pressure of the mechanical seal cavity, and has the advantages of portability, easy modification of the pump and low energy consumption.

The prior art solutions described above have the following drawbacks: the inside water source that can get into in the use, but generally all can persist certain impurity in the water source, the inside of the impurity deposit the pump body after long-time use can lead to inside jam after long-time piling up, can appear the condition of unable normal operating when using, can cause the reduction to the conveying efficiency of water pump.

Disclosure of Invention

The utility model aims to provide a vertical multistage pump which adopts the device to work, thereby solving the problem that the inside of the existing vertical multistage pump is easy to be blocked.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a vertical multistage pump, includes the main casing, fixes the water inlet in main casing one side, fixes the delivery port in main casing opposite side, swing joint in the inside pivot of main casing, fixes the outside impeller in the pivot, fixes the support frame on main casing top to and install the motor in the support frame top, the inside of water inlet is fixed with filtration, and the bottom of motor is provided with dismouting structure, and filtration is including fixing the inside shell of water inlet, sets up the installation piece in the shell top to and fix the filter box in the installation piece bottom, the inside of filter box is provided with the filter screen, and the external diameter of filter box is less than the internal diameter of shell.

Further, the movable cavity is arranged in the installation block, a spring is fixed on one side of the inside of the movable cavity, an inserting block is fixed on one side of the spring, a pull rope penetrates through the inside of the spring, one end of the pull rope is fixedly connected with the inserting block, a pull ring is fixed on the other end of the pull rope, a sealing ring is fixed on the outside of the installation block, and a limiting hole is formed in the inside of the shell.

Further, the inner diameter of the limiting hole is larger than the outer diameter of the plug, and an inserting structure is formed between the limiting hole and the plug.

Further, the insert block forms a telescopic structure in the movable cavity through a spring.

Further, the two groups of the inserting blocks are symmetrically distributed about the inner vertical center line of the mounting block.

Further, the dismounting structure comprises a bottom end fixing block fixed on the motor, a sliding block fixed on one side of the inside of the supporting frame, a sliding groove is formed in the fixing block, a screw hole is formed in the sliding block, and a bolt is connected with the internal thread of the screw hole.

Further, two fixing blocks are arranged, and the fixing blocks are symmetrically distributed relative to the vertical center line of the supporting frame.

Further, the outer diameter of the sliding block is smaller than the inner diameter of the sliding groove, and the sliding block forms a sliding structure in the sliding groove.

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

the vertical multistage pump provided by the utility model is easy to block in the existing vertical multistage pump; the utility model can be convenient for filtering the inflow water of the water inlet through the filtering structure, when the filter is used, the water inlet is connected with the water source, the water source enters the shell, the water source passes through the filter box, the filter screen in the filter box can filter impurities in the water source, the filter box is cleaned when the pump body is maintained, the pull ring is pulled, the pull ring pulls the pull rope, the pull rope drives the insert block to retract into the movable cavity, the insert block is separated from the limiting hole, the mounting block can be lifted, the mounting block drives the filter box to be pulled out from the shell, the filter box can be cleaned, the filter box is returned after the filter box is inserted into the shell, then the insert block is extruded by the inner wall of the shell, the insert block is pushed into the movable cavity, and the insert block is pushed into the limiting hole by the elastic force of the spring to be clamped by the insert block when the mounting block and the shell are closed, and the mounting block can be fixed.

Can be convenient for carry out the dismouting with the motor through dismouting structure, can need to maintain the motor dismouting when using, unscrew the bolt from the inside of screw this moment, lift the motor and drive the separation between fixed block and the slider then, can maintain the motor later, adorn the motor back after maintaining, aim at the position of slider with the inside spout of fixed block this moment, can realize cashing the location outside at the slider with the spout cover, can install the motor on the top of support frame with the inside of bolt screwing in the screw afterwards.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic perspective view of the present utility model;

FIG. 3 is a schematic cross-sectional elevation view of a filter structure according to the present utility model;

FIG. 4 is a schematic diagram of the cross-sectional structure of FIG. 1A in elevation in accordance with the present utility model;

fig. 5 is a schematic sectional elevation view of the detachable structure of the present utility model.

In the figure: 1. a main housing; 2. a water inlet; 3. a filtering structure; 31. a housing; 32. a filter box; 33. a mounting block; 34. a pull ring; 35. a seal ring; 36. a limiting hole; 37. inserting blocks; 38. a spring; 39. a movable cavity; 310. a pull rope; 4. a rotating shaft; 5. an impeller; 6. a water outlet; 7. a support frame; 8. a disassembly and assembly structure; 81. a fixed block; 82. a bolt; 83. a chute; 84. a slide block; 85. a screw hole; 9. and a motor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

For a further understanding of the present utility model, the present utility model will be described in detail with reference to the drawings.

Referring to fig. 1 and 2, a vertical multistage pump includes a main housing 1, a water inlet 2 fixed at one side of the main housing 1, a water outlet 6 fixed at the other side of the main housing 1, a rotating shaft 4 movably connected inside the main housing 1, an impeller 5 fixed outside the rotating shaft 4, a supporting frame 7 fixed at the top end of the main housing 1, and a motor 9 mounted above the supporting frame 7, wherein a filtering structure 3 is fixed inside the water inlet 2, and a dismounting structure 8 is arranged at the bottom end of the motor 9.

Specifically, when in use, the water inlet 2 is connected with the water source input end, the water outlet 6 is connected with the output end, the starting motor 9 rotates to drive the rotating shaft 4 to rotate, the rotating shaft 4 drives the impeller 5 to rotate, and the impeller 5 rotates to convey the water source from the water inlet 2 to the water outlet 6, so that the water source is conveyed.

The utility model is further described below with reference to examples.

Example 1:

referring to fig. 3 and the spitting, the filtering structure 3 includes a housing 31 fixed inside the water inlet 2, a mounting block 33 disposed above the housing 31, and a filtering box 32 fixed at the bottom end of the mounting block 33, wherein a filter screen is disposed inside the filtering box 32, and an outer diameter of the filtering box 32 is smaller than an inner diameter of the housing 31.

The movable cavity 39 is arranged in the installation block 33, the spring 38 is fixed on one side in the movable cavity 39, the insert 37 is fixed on one side of the spring 38, the pull rope 310 penetrates through the spring 38, one end of the pull rope 310 is fixedly connected with the insert 37, the pull ring 34 is fixed on the other end of the pull rope 310, the sealing ring 35 is fixed on the outer portion of the installation block 33, and the limiting hole 36 is formed in the shell 31.

The inner diameter of the limiting hole 36 is larger than the outer diameter of the insert block 37, and an inserting structure is formed between the limiting hole 36 and the insert block 37.

The insert 37 constitutes a telescopic structure inside the movable chamber 39 by means of a spring 38.

The insert blocks 37 are provided in two groups, and the two groups of insert blocks 37 are symmetrically distributed about the internal vertical center line of the mounting block 33.

Specifically, when the filter cartridge is used, the water inlet 2 is connected with a water source, the water source enters the shell 31, the water source passes through the filter cartridge 32, impurities in the water source can be filtered out by the filter screen in the filter cartridge 32, the filter cartridge 32 is cleaned during maintenance of the pump body, the pull ring 34 is pulled at the moment, the pull ring 34 pulls the pull rope 310, the pull rope 310 drives the insert 37 to retract into the movable cavity 39, the insert 37 and the limiting hole 36 are separated, the mounting block 33 can be lifted, the mounting block 33 drives the filter cartridge 32 to be pulled out from the shell 31, the filter cartridge 32 can be cleaned, the filter cartridge 32 is installed back after cleaning, the filter cartridge 32 is inserted into the shell 31 at the moment, then the insert 37 is extruded by the inner wall of the shell 31, the insert 37 is pushed into the movable cavity 39, and when the mounting block 33 and the shell 31 are closed, the spring force of the spring 38 pushes the insert 37 to be clamped into the limiting hole 36, and the shell 31 and the mounting block 33 can be fixed.

Example 2:

referring to fig. 5, the dismounting structure 8 includes a bottom fixing block 81 fixed on the motor 9, a sliding block 84 fixed on one side of the inside of the supporting frame 7, a sliding slot 83 provided in the inside of the fixing block 81, a screw hole 85 provided in the inside of the sliding block 84, and a bolt 82 connected to the internal thread of the screw hole 85.

The number of the fixing blocks 81 is two, and the fixing blocks 81 are symmetrically distributed about the vertical center line of the supporting frame 7.

The outer diameter of the slider 84 is smaller than the inner diameter of the chute 83, and the slider 84 constitutes a sliding structure inside the chute 83.

Specifically, when the motor 9 is used, the motor 9 needs to be disassembled and assembled for maintenance, at the moment, the bolt 82 is screwed out from the screw hole 85, then the motor 9 is lifted to drive the fixed block 81 to be separated from the sliding block 84, the motor 9 can be maintained, the motor 9 is installed back after maintenance, at the moment, the sliding groove 83 in the fixed block 81 is aligned with the position of the sliding block 84, the sliding groove 83 is sleeved outside the sliding block 84 for realizing redemption positioning, and then the motor 9 can be installed at the top end of the supporting frame 7 by screwing the bolt 82 into the screw hole 85.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a vertical multistage pump, includes main casing (1), fixes water inlet (2) in main casing (1) one side, fixes delivery port (6) at main casing (1) opposite side, swing joint in inside pivot (4) of main casing (1), fixes at outside impeller (5) of pivot (4), fixes support frame (7) on main casing (1) top to and install motor (9) in support frame (7) top, its characterized in that: a filtering structure (3) is fixed in the water inlet (2), and a disassembly and assembly structure (8) is arranged at the bottom end of the motor (9);

the filter structure (3) comprises a shell (31) fixed inside the water inlet (2), a mounting block (33) arranged above the shell (31) and a filter box (32) fixed at the bottom end of the mounting block (33), wherein a filter screen is arranged inside the filter box (32), and the outer diameter of the filter box (32) is smaller than the inner diameter of the shell (31).

2. A vertical multistage pump according to claim 1, wherein: the movable cavity (39) is formed in the installation block (33), the spring (38) is fixed on one side of the inner portion of the movable cavity (39), the inserting block (37) is fixed on one side of the spring (38), the pull rope (310) penetrates through the inner portion of the spring (38), one end of the pull rope (310) is fixedly connected with the inserting block (37), the pull ring (34) is fixed on the other end of the pull rope (310), the sealing ring (35) is fixed on the outer portion of the installation block (33), and the limiting hole (36) is formed in the outer shell (31).

3. A vertical multistage pump according to claim 2, characterized in that: the inner diameter of the limiting hole (36) is larger than the outer diameter of the insert block (37), and an inserting structure is formed between the limiting hole (36) and the insert block (37).

4. A vertical multistage pump according to claim 2, characterized in that: the insert block (37) forms a telescopic structure in the movable cavity (39) through a spring (38).

5. A vertical multistage pump according to claim 2, characterized in that: the two groups of the inserting blocks (37) are arranged, and the two groups of the inserting blocks (37) are symmetrically distributed about the inner vertical center line of the mounting block (33).

6. A vertical multistage pump according to claim 5, wherein: the dismounting structure (8) comprises a bottom end fixing block (81) fixed on the motor (9), a sliding block (84) fixed on one side of the inside of the supporting frame (7), a sliding groove (83) is formed in the fixing block (81), a screw hole (85) is formed in the sliding block (84), and a bolt (82) is connected with the screw hole (85) through internal threads.

7. A vertical multistage pump according to claim 6, wherein: the two fixing blocks (81) are arranged, and the fixing blocks (81) are symmetrically distributed relative to the vertical center line of the supporting frame (7).

8. A vertical multistage pump according to claim 6, wherein: the outer diameter of the sliding block (84) is smaller than the inner diameter of the sliding groove (83), and the sliding block (84) forms a sliding structure in the sliding groove (83).