Horizontal multi-stage pump

Abstract

The utility model discloses a horizontal multi-stage pump, and relates to the technical field of centrifugal pump equipment. The device comprises a first machine box, one end of the first machine box is fixedly connected with a second machine box, one end of the second machine box is movably connected with a first pressurizing pipe, the surface of the first pressurizing pipe is movably connected with a second pressurizing pipe, and the ends, away from the first machine box, of the first pressurizing pipe and the second pressurizing pipe are movably connected with a motor. And the output end of the motor is fixedly connected with a first threaded rod, the first threaded rod is in threaded connection with pumping mechanisms, the pumping mechanisms are located in the second pressurizing pipe, and a plurality of pumping mechanisms are distributed in the second pressurizing pipe at equal intervals. According to the utility model, the third fixing block is in threaded connection with the third fixing screw, and when the third fixing block hole positions on the first case and the second case are opposite, the third fixing screw is rotated to gradually penetrate through the third fixing block, so that the rotation of the third fixing screw is stopped when the opposite surfaces of the first case and the second case are attached to each other; therefore, the first case and the second case are mutually fixed.

Description

Technical Field

[0001] The utility model belongs to the technical field of centrifugal pump equipment, and in particular relates to a horizontal multi-stage pump. Background Art

[0002] A centrifugal pump works by using the rotation of the impeller to cause water to move centrifugally. Before starting the pump, the pump casing and the suction pipe must be filled with water, and then the motor is started so that the pump shaft drives the impeller and water to rotate at high speed. The water moves centrifugally and is thrown to the outer edge of the impeller and flows into the water pressure pipeline of the pump through the flow channel of the volute pump casing.

[0003] In the prior art, after searching, a publication number CN213628035U discloses a horizontal multi-stage centrifugal pump, including a motor, a fixed water outlet housing, and a fixed water inlet housing. The top of the fixed water outlet housing is fixedly connected with a water outlet, one end of the outer wall of the fixed water outlet housing is fixedly connected with a motor, the outer wall of the fixed water inlet housing is provided with a water inlet, and the fixed water outlet housing and the fixed water inlet housing are movably connected with several groups of assembly mechanisms that can increase power. Since the total head value of the multi-stage centrifugal pump is the sum of the heads generated by n impellers, the utility model increases the number of impellers of the centrifugal pump by providing an assembly mechanism installed by assembly, thereby making the maximum head value of the centrifugal pump adjustable; the utility model makes the disassembly and maintenance process of the equipment simpler and more convenient by providing an assembly mechanism installed by assembly, thereby extending the service life of the equipment.

[0004] When the multi-stage pump is pressurizing the water in the pump, the water pressure in the pump gradually increases. Due to the special structure of the device, it will continuously impact and apply pressure to the inner wall of the multi-stage pump. The device does not perform protective treatment on the inner wall, which will cause a certain degree of damage to the inner wall of the water pump. Therefore, the service life of the device will gradually decrease.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] In view of the problems in the related technology, the utility model proposes a horizontal multi-stage pump to overcome the above technical problems existing in the existing related technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model is a horizontal multi-stage pump, comprising a first chassis, one end of the first chassis is fixedly connected to the second chassis, one end of the second chassis is movably connected to the first boosting pipe, the surface of the first boosting pipe is movably connected to the second boosting pipe, the first boosting pipe and the second boosting pipe are movably connected to a motor at one end away from the first chassis, the output end of the motor is fixedly connected to a first threaded rod, the first threaded rod is threadedly connected to a pumping mechanism, the pumping mechanism is located inside the first boosting pipe and the second boosting pipe, and the pumping mechanism is distributed in the first boosting pipe and the second boosting pipe in a plurality of equidistant positions, and the caliber of the first boosting pipe and the second boosting pipe at a plurality of connection points of the pumping mechanism is smaller than the caliber of the pumping mechanism, and is in an inclined state.

[0009] Furthermore, a water inlet is fixedly connected to the surface of the first boost pipe, a water outlet is fixedly connected to one end of the first chassis, and the water outlet runs through one end of the first chassis and is connected to the first boost pipe and the second boost pipe.

[0010] Furthermore, the water inlet is connected to the first boosting pipe.

[0011] Furthermore, the surfaces of the first boost tube and the second boost tube are fixedly connected with a second fixing block, the second fixing block is internally threadedly connected with a second fixing wire, and the second fixing wire completely penetrates the second fixing block, the second fixing block and the second fixing wire can fix the first boost tube and the second boost tube together and make their opposite surfaces fit together to fix each other, the first boost tube and the second boost tube penetrate one end of the second chassis close to the motor, the surfaces of the second chassis, the first boost tube and the second boost tube are fixedly connected with first fixing blocks arranged equidistantly around the circumference, the first fixing block is internally threadedly connected with a first fixing wire, and the threaded fixation of the first fixing wire and the first fixing block can fix the first boost tube, the second boost tube and the second chassis together.

[0012] Furthermore, the surfaces of the first boost pipe, the second boost pipe and the motor are fixedly connected with fourth fixing blocks arranged equidistantly in a circle, the fourth fixing blocks are internally threaded with fourth fixing wires, and the fourth fixing wires penetrate the fourth fixing blocks, and the fourth fixing blocks and the fourth fixing wires are threadedly connected to each other to fix the first boost pipe, the second boost pipe and the motor to each other.

[0013] Furthermore, the pumping mechanism includes a central axis, which runs through the pumping mechanism, a threaded hole is provided at one end of the central axis close to the motor, a second threaded rod is fixedly connected to the other end of the central axis, a pump blade is fixedly connected to the surface of the central axis, a second threaded rod is arranged at one end of the central axis, a plurality of first water outlet holes are arranged equidistantly around the circumference on the surface of the pumping mechanism, a second water outlet hole is arranged equidistantly around the circumference at the bottom of the pumping mechanism, the first water outlet hole and the second water outlet hole both penetrate the inner wall of the pumping mechanism, and the first water outlet hole is inclined.

[0014] Furthermore, the thread on the inner wall of the threaded hole matches the thread on the first threaded rod, so that the pump mechanism can be fixed to one end of the output shaft of the motor, and when the motor starts working, the output shaft can control the pump mechanism to start rotating.

[0015] Furthermore, a second threaded rod is fixedly connected to the other end of the central axis, and the second threaded rod also matches the thread of the threaded hole, and these pumping mechanisms are connected and fixed by threading the second threaded rod inside them with the threaded holes inside adjacent pumping mechanisms.

[0016] Furthermore, the first chassis and the second chassis are fixedly connected with a plurality of third fixing blocks arranged equidistantly in a circle near the two end surfaces, and the third fixing wire is connected with a third fixing wire through internal threads of the third fixing block. Meanwhile, the threads on the surface of the third fixing wire match the threads inside the third fixing block, and the third fixing wire completely penetrates the third fixing block. After the third fixing wire completely penetrates the third fixing blocks on the surfaces of the first chassis and the second chassis by rotating, the opposite ends of the first chassis and the second chassis fit together to achieve a mutual fixing effect.

[0017] Furthermore, the first chassis and the second chassis are fixedly connected to a first fixing frame and a second fixing frame respectively.

[0018] The utility model has the following beneficial effects:

[0019] 1. The utility model In the utility model, the inner walls of the first boosting pipe and the second boosting pipe have different diameters and are inclined, so that the volume of the pump pressure mechanism is larger than the volume of the slightly smaller diameter part. When water is transmitted inside the device, the water will gradually flow in from the motor toward the first chassis. Since the water inside the device is constantly flowing and the volume of water in the pump pressure mechanism is larger than the volume of water in the connection part, the water in the large diameter part squeezes the water in the slightly smaller radius part of the first chassis, thereby further pressurizing the water. At the same time, since the pipe wall is inclined, the water close to the pipe wall is affected by the inclination of the pipe wall during the squeezing process, and the flow direction is changed, and gradually flows toward the central axis of the device so that the water enters the next expanded diameter part, thereby not only pressurizing the water, but also reducing the impact of water on the pipe wall by changing the flow direction of the water, thereby increasing the life of the pipe body.

[0020] 2. The utility model fixes the current pump pressure mechanism by threading the first threaded rod fixed at the output end of the motor with the threaded hole inside the directly connected pump pressure mechanism. When the motor starts working, the output end can control the connected pump pressure mechanism to start rotating. At the same time, since several pump pressure mechanisms inside the device are fixed by threading the second threaded rod inside the device with the threaded hole inside the adjacent pump pressure mechanism, the output end of the motor can drive all the pump pressure mechanisms to start rotating, so that the motor can drive the rotation of the internal pump pressure mechanisms. At the same time, all the pump pressure mechanisms can be separated, and the pump pressure mechanisms fixed by the motor can also be separated, which is convenient for the staff to inspect and repair the pump pressure mechanisms when they stop working later.

[0021] 3. The utility model is connected by a third fixing block and a third fixing wire through a thread. When the holes of the third fixing blocks on the first chassis and the second chassis are aligned, the third fixing wire is gradually penetrated through the third fixing block by rotating, so that the third fixing wire is stopped from rotating when the opposite surfaces of the first chassis and the second chassis are in contact with each other, thereby achieving mutual fixation of the first chassis and the second chassis.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the utility model embodiments, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of a horizontal multi-stage pump mechanism of the utility model;

[0025] Figure 2 For the utility model Figure 1 A magnified image;

[0026] Figure 3 It is a cross-sectional view of the chassis 1 of the utility model;

[0027] Figure 4 This is a schematic diagram of the motor structure of the utility model;

[0028] Figure 5 It is a schematic diagram of the side structure of the second boosting pipe 15 of the utility model;

[0029] Figure 6 This is a schematic diagram of the pump pressure mechanism structure of the utility model;

[0030] Figure 7 It is a cross-sectional view of the pump pressure mechanism of the utility model.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. First chassis; 11. First fixing frame; 12. Water inlet; 13. Water outlet; 14. First boost pipe; 141. First fixing block; 142. First fixing wire; 143. Second fixing block; 144. Second fixing wire; 15. Second boost pipe; 2. Second chassis; 21. Third fixing wire; 22. Third fixing block; 23. Second fixing frame; 3. Motor; 31. Fourth fixing wire; 32. Fourth fixing block; 33. First threaded rod; 4. Pump pressure mechanism; 41. Second threaded rod; 42. Threaded hole; 43. Pump blade; 44. First water outlet; 45. Second water outlet; 46. Center axis. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0035] See also Figure 1-Figure 7As shown, the utility model is a horizontal multi-stage pump, including a first chassis 1, one end of the first chassis 1 is fixedly connected to the second chassis 2, one end of the second chassis 2 is movably connected to the first boost pipe 14, the surface of the first boost pipe 14 is movably connected to the second boost pipe 15, the first boost pipe 14 and the second boost pipe 15 are movably connected to the motor 3 at one end away from the first chassis 1, the output end of the motor 3 is fixedly connected to the first threaded rod 33, the first threaded rod 33 is threadedly connected to the pumping mechanism 4, the pumping mechanism 4 is located inside the first boost pipe 14 and the second boost pipe 15, and the pumping mechanism 4 is evenly distributed inside the first boost pipe 14 and the second boost pipe 15, and the caliber of the first boost pipe 14 and the second boost pipe 15 at several connection points of the pumping mechanism 4 is smaller than the caliber of the pumping mechanism 4, and is in an inclined state.

[0036] When water flows through the first boosting pipe 14 and the second boosting pipe 15, through the inclined structure of the pipe wall, when the pipe wall where the first pumping mechanism 4 is located is first fixed by the motor 3, the space gradually increases from small to large, and at the same time, when passing through the adjacent pumping mechanism 4, the pipe wall will gradually decrease, so that the radius of the pipe wall gradually decreases, and at the same time, the water close to the small-diameter pipe wall is smaller than the volume of the large-diameter water, and the water will continue to flow, and then the larger-diameter water will squeeze the water at the small-diameter position, and the pressure is increased by reducing the flow diameter of the current-diameter water. At the same time, the pipe wall is inclined, and the flow direction of the water close to the pipe wall can be changed, so that the flow direction of the water close to the pipe wall gradually flows toward the direction of the central axis of the pipe body, and squeezes the water in the center to increase the water pressure, thereby further increasing the water pressure, and changing the direction of the water flow can also reduce the impact on the pipe wall.

[0037] The inner walls of the first boosting tube 14 and the second boosting tube 15 have different diameters and are inclined, so that the volume of the pumping mechanism 4 is larger than the volume of the slightly smaller diameter portion. When water is transmitted inside the device, the water will gradually flow in from the motor 3 toward the first chassis 1. Since the water inside the device is constantly flowing and the volume of water in the pumping mechanism 4 is larger than the volume of water in the connection portion, the water in the larger diameter portion squeezes the water in the slightly smaller radius portion of the first chassis 1, thereby further pressurizing the water. At the same time, since the tube wall is inclined, the water close to the tube wall is affected by the inclination of the tube wall during the squeezing process, and the flow direction changes, and gradually flows toward the center axis 46 of the device, allowing the water to enter the next expanded diameter portion, thereby not only pressurizing the water, but also reducing the impact of water on the tube wall by changing the flow direction of the water, thereby increasing the life of the tube body.

[0038] In addition, during specific applications, gaskets are provided on the opposing surfaces of the first boost pipe 14 and the second boost pipe 15. The gaskets are made of rubber, which has large friction and good elasticity. Therefore, when the first boost pipe 14 and the second boost pipe 15 are in a closed state, the gaskets have large friction and will not be impacted out by the water inside the device, thereby achieving a good effect in sealing the first boost pipe 14 and the second boost pipe 15.

[0039] In one embodiment, for the above-mentioned first boost pipe 14, a water inlet 12 is fixedly connected to the surface of the first boost pipe 14, and a water outlet 13 is fixedly connected to one end of the first chassis 1. The water outlet 13 runs through one end of the first chassis 1 and is connected to the first boost pipe 14 and the second boost pipe 15.

[0040] In one embodiment, for the water inlet 12 , the water inlet 12 is connected to the first boosting pipe 14 .

[0041] In one embodiment, for the above-mentioned first boost pipe 14, the surfaces of the first boost pipe 14 and the second boost pipe 15 are fixedly connected with a second fixing block 143, the second fixing block 143 is internally threadedly connected with a second fixing wire 144, and the second fixing wire 144 completely penetrates the second fixing block 143, the second fixing block 143 and the second fixing wire 144 can fix the first boost pipe 14 and the second boost pipe 15 together and make their opposite surfaces fit each other for mutual fixation, the first boost pipe 14 and the second boost pipe 15 penetrate the end of the second chassis 2 close to the motor 3, the surfaces of the second chassis 2, the first boost pipe 14, and the second boost pipe 15 are fixedly connected with first fixing blocks 141 arranged equidistantly around the circumference, the first fixing block 141 is internally threadedly connected with a first fixing wire 142, and the threaded fixation of the first fixing wire 142 and the first fixing block 141 can fix the first boost pipe 14, the second boost pipe 15 and the second chassis 2 together.

[0042] When the first boost pipe 14 and the second boost pipe 15 are in a fitted state, the holes inside the first fixing blocks 141 fixed on the two structures are aligned with the holes of the first fixing blocks 141 on the second chassis 2, and the first fixing wires 142 are rotated at the same time to fit the opposite surfaces of the two first fixing blocks 141 together and stop rotating to fix the first boost pipe 14 and the second boost pipe 15 in the fitted state on the second chassis 2.

[0043] By rotating the second fixing wire 144 to align with the hole inside the second fixing block 143 , the rotation is stopped when the first boost pipe 14 is attached to the second boost pipe 15 , thereby fixing the first boost pipe 14 and the second boost pipe 15 .

[0044] In one embodiment, for the water inlet 12 , the water inlet 12 is connected to the first boosting pipe 14 .

[0045] In one embodiment, for the above-mentioned first boost pipe 14, the surfaces of the first boost pipe 14, the second boost pipe 15, and the motor 3 are fixedly connected with fourth fixing blocks 32 arranged equidistantly in a circle, and the fourth fixing wire 31 is threadedly connected inside the fourth fixing block 32, and the fourth fixing wire 31 passes through the fourth fixing block 32. The threaded connection between the fourth fixing block 32 and the fourth fixing wire 31 can fix the first boost pipe 14, the second boost pipe 15, and the motor 3 to each other.

[0046] When the first boost tube 14 and the second boost tube 15 are in a fitted state, and at the same time, when the plurality of fourth fixing blocks 32 fixed at one end are opposite to the plurality of fourth fixing blocks 32 fixed at one end of the motor 3, the fourth fixing wire 31 is rotated to gradually fit one end of the motor 3 and the opposite end of the first boost tube 14 and the second boost tube 15 in a fitted state. When they are fully fitted, the fourth fixing wire 31 is stopped from being rotated, thereby achieving the fixation of the first boost tube 14, the second boost tube 15 and the motor 3 in a fitted state.

[0047] In addition, in specific applications, rubber gaskets are provided at the ends of the first boost pipe 14 and the second boost pipe 15 opposite to the motor 3 to prevent water from overflowing from the first boost pipe 14 and the second boost pipe 15 .

[0048] In one embodiment, for the above-mentioned first pump pressure mechanism 4, the pump pressure mechanism 4 includes a central axis 46, the central axis 46 passes through the pump pressure mechanism 4, a threaded hole 42 is provided at one end of the central axis 46 close to the motor 3, a second threaded rod 41 is fixedly connected to the other end of the central axis 46, a pump blade 43 is fixedly connected to the surface of the central axis 46, a second threaded rod 41 is arranged at one end of the central axis 46, a plurality of first water outlet holes 44 arranged equidistantly around the circumference are provided on the surface of the pump pressure mechanism 4, a plurality of second water outlet holes 45 arranged equidistantly around the circumference are provided at the bottom of the pump pressure mechanism 4, the first water outlet holes 44 and the second water outlet holes 45 both pass through the inner wall of the pump pressure mechanism 4, and the first water outlet hole 44 is inclined.

[0049] In one embodiment, for the above-mentioned threaded hole 42, the thread on the inner wall of the threaded hole 42 matches the thread on the first threaded rod 33, so that the pumping mechanism 4 can be fixed to one end of the output shaft of the motor 3, and then when the motor 3 starts working, the output shaft can control the pumping mechanism 4 to start rotating.

[0050] The current pump pressure mechanism 4 is fixed by threading the first threaded rod 33 fixed at the output end of the motor 3 with the threaded hole 42 inside the directly connected pump pressure mechanism 4, so that when the motor 3 starts to work, the output end can control the connected pump pressure mechanism 4 to start rotating, and at the same time, since several pump pressure mechanisms 4 inside the device are fixed by threading the second threaded rod 41 inside it with the threaded hole 42 inside the adjacent pump pressure mechanism 4, the output end of the motor 3 can drive all the pump pressure mechanisms 4 to start rotating, so that the motor 3 can drive the rotation of the rotating internal pump pressure mechanism 4, and at the same time all the pump pressure mechanisms 4 can be separated, and the pump pressure mechanism 4 fixed by the motor 3 can also be separated, so as to facilitate the maintenance of the pump pressure mechanism 4 by the staff when it stops working later.

[0051] In one embodiment, for the above-mentioned central axis 46, the other end of the central axis 46 is fixedly connected with a second threaded rod 41, and the second threaded rod 41 also matches the thread of the threaded hole 42, and these pumping mechanisms 4 are connected and fixed by threading the second threaded rod 41 inside them with the threaded holes 42 inside adjacent pumping mechanisms 4.

[0052] When water is ready to be transported, it gradually enters the closed space of the first boosting pipe 14 and the second boosting pipe 15 through the water inlet 12, and at the same time, the motor 3 is turned on, and the pump pressure mechanism 4 is driven to start rotating through its output end. During the rotation process, the pump pressure mechanism 4 first stirs the internal water, so that the centrifugal force of the water inside the device gradually increases to increase the water pressure. At the same time, during the rotation process of the pump pressure mechanism 4, water will enter the interior of the pump pressure mechanism 4, and the pump blades 43 inside the current pump pressure mechanism 4 will also stir the water to increase the pressure. At the same time, part of the water will be squeezed out of the outside of the pump pressure mechanism 4 through the first water outlet 44 and the second water outlet 45 by the water being transmitted, and because the pump pressure mechanism 4 is rotating, it will then pass through The water discharged from the first water outlet 44 will be discharged to the outside of the pumping mechanism 4 by "swinging", and in the process of "swinging", it will be affected by the water and the inner wall of the device, and will collide with the water outside the pumping mechanism 4, and when it is "swung" far enough, it will also collide with the inner walls of the first boosting pipe 14 and the second boosting pipe 15, and then the centrifugal force of the water will be further increased after the collision, and then the water pressure of the currently discharged water will be further increased. At the same time, the first boosting pipe 14 and the second boosting pipe 15 are controlled by the output end of the motor 3, and the above operations will be performed synchronously. When the pumping mechanism 4 closest to the water outlet 13 pressurizes the water, it will output the water to the outside of the device through the water outlet 13.

[0053] In one embodiment, for the above-mentioned first chassis 1, the first chassis 1 and the second chassis 2 are fixedly connected with a plurality of third fixing blocks 22 arranged equidistantly in a circle near the surfaces of both ends, and the third fixing wire 21 is threadedly connected to the inside of the third fixing block 22. At the same time, the thread on the surface of the third fixing wire 21 matches the thread inside the third fixing block 22, and the third fixing wire 21 completely penetrates the third fixing block 22. After the third fixing wire 21 completely penetrates the third fixing block 22 on the surface of the first chassis 1 and the second chassis 2 by rotating, the opposite ends of the first chassis 1 and the second chassis 2 are fitted with each other to achieve a mutual fixing effect.

[0054] The third fixing block 22 is threadedly connected to the third fixing wire 21. When the hole positions of the third fixing blocks 22 on the first chassis 1 and the second chassis 2 are aligned, the third fixing wire 21 is rotated to gradually penetrate the third fixing block 22, so that the third fixing wire 21 is stopped from rotating when the opposite surfaces of the first chassis 1 and the second chassis 2 are in contact with each other, thereby achieving mutual fixation of the first chassis 1 and the second chassis 2.

[0055] In one embodiment, for the first chassis 1 , the first chassis 1 and the second chassis 2 are fixedly connected to a first fixing frame 11 and a second fixing frame 23 , respectively.

[0056] The device can be supported by fixing the first fixing frame 11 and the second fixing frame 23 to the first chassis 1 and the second chassis 2 respectively.

[0057] In summary, with the aid of the above technical solution of the utility model, when water is ready to be transported, it gradually enters the closed space inside the first boosting pipe 14 and the second boosting pipe 15 through the water inlet 12, and at the same time, the motor 3 is turned on, and the pump pressure mechanism 4 is driven to start rotating through its output end. During the rotation process, the pump pressure mechanism 4 first stirs the internal water, so that the centrifugal force of the water inside the device gradually increases to increase the water pressure. At the same time, during the rotation process of the pump pressure mechanism 4, water will enter the interior of the pump pressure mechanism 4, wherein the pump blades 43 inside the current pump pressure mechanism 4 will also stir the water to increase the pressure, and at the same time, part of the water will be squeezed out of the outside of the pump pressure mechanism 4 through the first water outlet 44 and the second water outlet 45 by the water being transmitted, and because the pump pressure mechanism The structure 4 is rotating, and the water discharged through the first water outlet 44 will be discharged to the outside of the pump pressure mechanism 4 by "swinging", and in the process of "swinging", it will be affected by the water and the inner wall of the device, and will collide with the water outside the pump pressure mechanism 4, and when it is "swung" far enough, it will also collide with the inner walls of the first boosting pipe 14 and the second boosting pipe 15, and then the centrifugal force of the water will be further increased after the collision, and then the water pressure of the currently discharged water will be further increased. At the same time, the first boosting pipe 14 and the second boosting pipe 15 are controlled by the output end of the motor 3, and the above operations will be performed synchronously. When the pump pressure mechanism 4 closest to the water outlet 13 pressurizes the water, it will output the water to the outside of the device through the water outlet 13.

[0058] Through the above technical scheme, 1. In the utility model, the inner walls of the first boosting pipe 14 and the second boosting pipe 15 have different diameters and are inclined, so that the volume of the pump pressure mechanism 4 is larger than the volume of the slightly smaller diameter part. When water is transmitted inside the device, the water will gradually flow from the motor 3 toward the first chassis 1. Since the water inside the device is constantly flowing and the volume of water in the pump pressure mechanism 4 is larger than the volume of water in the connection part, the water in the large diameter part squeezes the water in the slightly smaller radius part of the chassis 1, thereby further pressurizing the water. At the same time, since the pipe wall is inclined, the water close to the pipe wall is affected by the inclination of the pipe wall during the squeezing process, and the flow direction is changed, and gradually flows toward the central axis 46 of the device so that the water enters the next caliber enlarged part, thereby not only pressurizing the water, but also reducing the impact of water on the pipe wall by changing the flow direction of the water, thereby increasing the life of the pipe body; 2. The first threaded rod 33 fixed at the output end of the motor 3 and the threaded hole 4 directly connected to the pump pressure mechanism 4 are connected to the pump pressure mechanism 4. 2 threaded connection to fix the current pump pressure mechanism 4, and then when the motor 3 starts to work, the output end can control the connected pump pressure mechanism 4 to start rotating. At the same time, since several pump pressure mechanisms 4 inside the device are threadedly connected with the threaded holes 42 inside the adjacent pump pressure mechanisms 4 through the second threaded rod 41 inside the device to achieve fixation, the output end of the motor 3 can drive all the pump pressure mechanisms 4 to start rotating, so that the motor 3 can drive the rotation of the rotating internal pump pressure mechanisms 4. At the same time, all the pump pressure mechanisms 4 can be separated, and the pump pressure mechanisms 4 fixed by the motor 3 can also be separated, so as to facilitate the maintenance of the pump pressure mechanisms 4 by the staff when the subsequent work stops; 3. The third fixing block 22 is threadedly connected with the third fixing wire 21. When the hole positions of the third fixing block 22 on the first chassis 1 and the second chassis 2 are aligned, the third fixing wire 21 is rotated to gradually penetrate the third fixing block 22, so that the third fixing wire 21 is stopped when the opposite surfaces of the first chassis 1 and the second chassis 2 are in contact with each other, so as to achieve the mutual fixation of the first chassis 1 and the second chassis 2.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A horizontal multistage pump, comprising a first housing (1), characterized in that: One end of the first chassis (1) is fixedly connected to the second chassis (2), one end of the second chassis (2) is movably connected to the first boosting tube (14), the surface of the first boosting tube (14) is movably connected to the second boosting tube (15), the first boosting tube (14) and the second boosting tube (15) are movably connected to a motor (3) at one end away from the first chassis (1), the output end of the motor (3) is fixedly connected to a first threaded rod (33), the first threaded rod (33) is threadedly connected to a pumping mechanism (4), the pumping mechanism (4) is located inside the first boosting tube (14) and the second boosting tube (15), and the pumping mechanism (4) is distributed in a plurality of equidistant locations inside the first boosting tube (14) and the second boosting tube (15), and the diameter of the first boosting tube (14) and the second boosting tube (15) at a plurality of connection points of the pumping mechanism (4) is smaller than the diameter of the pumping mechanism (4) and is in an inclined state.

2. A horizontal multistage pump according to claim 1, characterized in that: A water inlet (12) is fixedly connected to the surface of the first boost pipe (14), and a water outlet (13) is fixedly connected to one end of the first chassis (1); the water outlet (13) passes through one end of the first chassis (1) and is in communication with the first boost pipe (14) and the second boost pipe (15).

3. A horizontal multistage pump according to claim 2, characterized in that: The water inlet (12) is in communication with the first boosting pipe (14).

4. A horizontal multistage pump according to claim 1, characterized in that: The surfaces of the first boost tube (14) and the second boost tube (15) are both fixedly connected with a second fixing block (143), the second fixing block (143) is internally threadedly connected with a second fixing wire (144), and the second fixing wire (144) completely penetrates the second fixing block (143), the second fixing block (143) and the second fixing wire (144) can fix the first boost tube (14) and the second boost tube (15) together and make their opposite surfaces fit each other for mutual fixing, the first boost tube (14) and the second boost tube (15) are fixedly connected with each other, The boost pipe (15) passes through one end of the second chassis (2) close to the motor (3); the surfaces of the second chassis (2), the first boost pipe (14) and the second boost pipe (15) are all fixedly connected with first fixing blocks (141) arranged equidistantly in a circle; the first fixing block (141) is internally threadedly connected with a first fixing wire (142); the first fixing wire (142) and the first fixing block (141) are threadedly fixed to each other so as to fix the first boost pipe (14), the second boost pipe (15) and the second chassis (2) together.

5. A horizontal multistage pump according to claim 4, characterized in that: The surfaces of the first boost pipe (14), the second boost pipe (15) and the motor (3) are all fixedly connected with fourth fixing blocks (32) arranged equidistantly in a circumference, the fourth fixing block (32) is internally threadedly connected with a fourth fixing wire (31), and the fourth fixing wire (31) passes through the fourth fixing block (32), and the fourth fixing block (32) and the fourth fixing wire (31) are threadedly connected to each other so as to fix the first boost pipe (14), the second boost pipe (15) and the motor (3) to each other.

6. A horizontal multistage pump according to claim 1, characterized in that: The pump mechanism (4) comprises a central shaft (46), the central shaft (46) passes through the pump mechanism (4), a threaded hole (42) is provided at one end of the central shaft (46) close to the motor (3), a second threaded rod (41) is fixedly connected to the other end of the central shaft (46), a pump blade (43) is fixedly connected to the surface of the central shaft (46), a second threaded rod (41) is arranged at one end of the central shaft (46), a plurality of first water outlet holes (44) arranged at equal distances around the circumference are provided on the surface of the pump mechanism (4), and second water outlet holes (45) arranged at equal distances around the circumference are provided at the bottom of the pump mechanism (4), the first water outlet hole (44) and the second water outlet hole (45) both pass through the inner wall of the pump mechanism (4), and the first water outlet hole (44) is inclined.

7. A horizontal multistage pump according to claim 6, characterized in that: The thread on the inner wall of the threaded hole (42) matches the thread on the first threaded rod (33), so that the pumping mechanism (4) can be fixed to one end of the output shaft of the motor (3), and when the motor (3) starts working, the output shaft can control the pumping mechanism (4) to start rotating.

8. A horizontal multistage pump according to claim 6, characterized in that: The other end of the central axis (46) is fixedly connected to a second threaded rod (41), and the second threaded rod (41) also matches the thread of the threaded hole (42), and the pumping mechanisms (4) are connected and fixed by threading the second threaded rod (41) inside the pumping mechanisms (4) with the threaded holes (42) inside the adjacent pumping mechanisms (4).

9. A horizontal multistage pump according to claim 1, characterized in that: The first chassis (1) and the second chassis (2) are fixedly connected to a plurality of third fixing blocks (22) arranged equidistantly around the circumference of the surfaces of both ends. The third fixing blocks (22) are internally threadedly connected to a third fixing wire (21). The thread on the surface of the third fixing wire (21) matches the thread inside the third fixing block (22), and the third fixing wire (21) completely penetrates the third fixing block (22). After the third fixing wire (21) completely penetrates the third fixing block (22) on the surface of the first chassis (1) and the second chassis (2) by rotating, the opposite ends of the first chassis (1) and the second chassis (2) are mutually fitted to achieve a mutually fixed effect.

10. A horizontal multistage pump according to claim 1, characterized in that: The first chassis (1) and the second chassis (2) are respectively fixedly connected to a first fixing frame (11) and a second fixing frame (23).

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