CN113864251A

CN113864251A - Bidirectional axial flow pump

Info

Publication number: CN113864251A
Application number: CN202111271146.6A
Authority: CN
Inventors: 薛金至; 赵奔
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2021-12-31

Abstract

The invention relates to the technical field of axial-flow pumps, in particular to a bidirectional axial-flow pump, which comprises a pump body, wherein the pump body is in an arc-shaped structural design, the rear end of the arc-shaped outer surface of the pump body is fixedly connected with a fixed seat, the outer surface of the upper end of the fixed seat is fixedly connected with a motor, the front end output shaft of the motor is fixedly connected with a driving rod, the driving rod penetrates through the pump body and is fixedly connected with a blade, the position, close to the rear end of the blade, of the inner surface of the pump body is fixedly connected with a fixed frame, and the driving rod is rotatably connected with the fixed frame. The axial flow pump has the advantages that the purpose of adjusting the aperture size can be realized by arranging the filtering mechanism, the operation is convenient, when the axial flow pump works under different working conditions, the aperture can be adjusted according to the size of impurities contained in a water body, the filtering effect is optimized, the situation that the impurities enter the pump body, contact with the blades and damage the blades is prevented, the normal operation of the axial flow pump is ensured, and meanwhile, the service life of the axial flow pump is prolonged.

Description

Bidirectional axial flow pump

Technical Field

The invention relates to the technical field of axial flow pumps, in particular to a bidirectional axial flow pump.

Background

The axial-flow pump is characterized by that it utilizes the action force produced by blade of rotating impeller to make liquid be transferred along the axial direction, and includes several kinds of vertical, horizontal, oblique and cross-flow pumps, and the impeller of the axial-flow pump is equipped with 2-7 blades, and can be rotated in the circular tube-shaped pump shell, and the pump shell of upper portion of the impeller is equipped with fixed guide blade for eliminating the rotation movement of liquid, and can be changed into axial movement, and can convert the kinetic energy of rotation movement into pressure energy, and the axial-flow pump is generally single-stage type, and a small number of them can be made into two-stage type.

The prior patent (application number: CN201922452809.9) is an anti-clogging axial flow pump, comprising: the pump shell main barrel and the pump shell auxiliary barrel are connected with the upper end of the pump shell main barrel, a water inlet communicated with the lower end of the pump shell main barrel is formed in the lower end of the pump shell main barrel, a water outlet bent pipe communicated with the pump shell main barrel is arranged between the pump shell main barrel and the pump shell auxiliary barrel, and an input shaft is rotatably arranged at the upper end of the pump shell auxiliary barrel along the axis direction of the pump shell main barrel through a first bearing.

The above patent can operate the pump shaft to drive the impeller to rotate reversely through the shifting fork, realizes the reverse direction of water pumping, realizes the back flushing of the filter screen by the water sprayed from the water inlet, saves the trouble of manual sewage cleaning, has good anti-blocking effect and high automation degree, reduces the labor intensity of operating personnel, but the axial flow pump has wide application range and complex working environment, can be used for irrigation, waterlogging drainage, dock drainage and water level adjustment of canal lock, simultaneously, the device can also be used for chemical waste or sewage treatment and other scenes, the impurities in the liquid contacted with the axial flow pump under different working conditions are different, the sizes of the impurities are also different, and the sizes of the filter mesh openings can not be adjusted, so that the axial flow pump has poor filtering effect when in work, the impurities can easily enter the pump body, the blade is contacted with the blade and damaged, so that the normal operation of the axial flow pump is influenced, and the service life of the axial flow pump is also shortened.

Therefore, a bidirectional axial flow pump is provided.

Disclosure of Invention

The present invention is directed to a bidirectional axial flow pump to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: a bidirectional axial flow pump comprises a pump body, wherein the pump body is in an arc structural design, a fixed seat is fixedly connected to the rear end of the arc outer surface of the pump body, a motor is fixedly connected to the outer surface of the upper end of the fixed seat, a driving rod is fixedly connected to an output shaft at the front end of the motor, the driving rod penetrates through the pump body and is fixedly connected with a blade, a fixed frame is fixedly connected to the position, close to the rear end of the blade, of the inner surface of the pump body, the driving rod is rotatably connected with the fixed frame, first flange plates are fixedly connected to openings at two ends of the pump body, and a filtering mechanism is fixedly connected to the outer surface of the front end of the first flange plate, close to the front end of the blade, through screws;

the filtering mechanism comprises a second flange plate, a fixed cylinder, a fixed filtering plate, a movable filtering plate, a first tooth block, a turbine, a rotating rod, a first filtering hole, a second filtering hole and a hand wheel, wherein the second flange plate is fixedly connected with the first flange plate through a screw, the outer surface of the front end of the second flange plate is fixedly connected with the fixed cylinder, the front end of the inner surface of the fixed cylinder is fixedly connected with the fixed filtering plate, the outer surface of the rear end of the fixed filtering plate is connected with the movable filtering plate in a fitting manner, the annular outer surface of the movable filtering plate is rotatably connected with the fixed cylinder through a bearing, the edge position of the upper end of the outer surface of the rear side of the movable filtering plate is fixedly connected with the first tooth block, the rear end of the first tooth block is connected with the turbine in a meshing manner, the center position of the outer surface of the upper end of the turbine is fixedly connected with the rotating rod, the upper end of the rotating rod penetrates through the fixed cylinder and is fixedly connected with the hand wheel, and the rotating rod is rotatably connected with the fixed cylinder through the bearing, a plurality of first filter holes are formed in the fixed filter plate, a plurality of second filter holes are formed in the movable filter plate, and the first filter holes and the second filter holes are identical in inner diameter and are in one-to-one correspondence.

Because the axial flow pump has wide application range and complex working environment, the axial flow pump can be used for irrigation, waterlogging drainage, dock drainage and water level adjustment of a canal ship lock, and can also be used for chemical waste or sewage treatment and other scenes, the impurities contained in the liquid contacted with the axial flow pump under different working conditions are different, the sizes of the impurities are also different, and the sizes of the diameters of the filter holes cannot be adjusted, so that the axial flow pump has poor filtering effect when working, the impurities can easily enter the pump body and contact with the blades to damage the blades, the normal operation of the axial flow pump is influenced, and the service life of the axial flow pump is also reduced. The invention realizes the purpose of adjusting the aperture size by arranging the filtering mechanism and driving the movable filtering plate to rotate by rotating the hand wheel, thereby realizing convenient operation, ensuring the normal operation of the axial flow pump, improving the service life of the axial flow pump, and preventing impurities from entering the pump body and contacting with the blades and damaging the blades due to the fact that the aperture can be adjusted according to the size of the impurities contained in the water body when the axial flow pump works under different working conditions by optimizing the filtering effect and preventing the impurities from entering the pump body, and the filtering mechanism is fixedly connected with the first flange plate by the second flange plate through screws, when the axial flow pump pumps clear water, the filtering mechanism can be dismantled, so that the working efficiency of the axial flow pump is improved.

Preferably, the sealing groove is formed in the outer surface of the front end of the first flange plate, the sealing ring is movably connected to the position, close to the sealing groove, of the outer surface of the rear end of the second flange plate, and the sealing ring is attached to the sealing groove.

When the axial flow pump works, the first flange plate and the second flange plate are fixedly connected only through the screws, the sealing effect is poor, the situation that water body overflows from the joint of the first flange plate and the second flange plate is easily caused, and the normal operation of the axial flow pump is influenced.

Preferably, a movable groove is formed in the position, close to the sealing ring, of the outer surface of the rear end of the second flange plate, and the sealing ring is movably connected with the movable groove through a plurality of first springs.

When the sealing device works, in order to ensure the sealing property, the sealing ring and the sealing groove are tightly attached, and the sealing block is easy to deform under the state of being tightly attached for a long time, so that a gap is formed between the sealing block and the sealing groove, and the sealing property between the sealing block and the sealing groove is influenced.

Preferably, the annular outer surface of the fixed filter plate is fixedly connected with a plurality of convex rods, a plurality of arc-shaped grooves are formed in the positions, close to the convex rods, of the inner surface of the movable filter plate, and the convex rods are attached to the arc-shaped grooves.

When the movable filter plate works, the movable filter plate is limited due to the lack of a limiting mechanism, the turbine is easily separated from the first tooth block due to over rotation, the movable filter plate cannot be adjusted, in addition, the movable filter plate is positioned in the pump body and is inconvenient to observe, and the condition of the adjusted aperture cannot be judged, so that inconvenience is brought to a user. The condition that can't adjust movable filter plate takes place, and convenient to use person judges the aperture size simultaneously, and convenient to use person operates.

Preferably, the upper end of the annular outer surface of the rotating rod is connected with a clamping mechanism in a sliding manner;

the clamping mechanism comprises a sliding barrel, a second spring, a second tooth block, a through groove and a tooth groove, the sliding barrel is connected to the upper end of the annular outer surface of the rotating rod in a sliding mode, the sliding barrel is connected with the rotating rod through the second spring, the outer surface of the upper end of the sliding barrel is fixedly connected with the hand wheel, the second tooth block is fixedly connected to the annular outer surface of the sliding barrel, the through groove is formed in the position, close to the second tooth block, of the inside of the fixed barrel, the tooth groove is formed in the upper end of the inner surface of the through groove, and the outer surface of the second tooth block is meshed with the tooth groove.

When the filter is in work, the rotating rod and the turbine are fixed due to the lack of a clamping mechanism, so that the movable filter plate is easy to bear force to rotate, the condition that the aperture size is changed occurs, and the normal operation of the filter mechanism is influenced, the invention fixes the rotating rod and the turbine by utilizing the mutual clamping of the second tooth block and the tooth socket by arranging the clamping mechanism, presses the hand wheel to enable the sliding cylinder to slide downwards to drive the second tooth block to slide downwards and separate the second tooth block from the tooth socket when the rotating rod needs to be rotated, rotates the hand wheel to drive the sliding cylinder to rotate, can drive the rotating rod to rotate, releases the hand wheel, enables the sliding cylinder to move upwards under the elastic force of the second spring to drive the second tooth block to move upwards and clamp the tooth socket, and fixes the rotating rod again, and realizes the fixing effect on the rotating rod and the turbine by arranging the mutual clamping of the second tooth block and the tooth socket, the phenomenon that the movable filter plate is stressed to rotate due to the fact that the rotating rod and the turbine are fixed due to lack of the clamping mechanism is prevented, the size of the aperture is changed, and normal operation of the filter mechanism is guaranteed.

Preferably, a plurality of limiting grooves are uniformly formed in the upper end of the annular outer surface of the rotating rod, a plurality of limiting blocks are uniformly and fixedly connected to the positions, close to the limiting grooves, of the annular inner surface of the sliding cylinder, and the limiting blocks are connected with the limiting grooves in a sliding mode.

When the device works, the rotating rod is connected with the sliding barrel only through the spring, the connection effect is poor, the situation that relative motion occurs between the sliding barrel and the rotating rod when the rotating hand wheel is easily rotated to drive the sliding barrel to rotate is easily caused, and the operation is inconvenient for a user.

Compared with the prior art, the invention has the beneficial effects that:

the filter mechanism is arranged, the hand wheel is rotated to drive the movable filter plate to rotate, so that the purpose of adjusting the aperture size is achieved, the operation is convenient, when the axial flow pump works under different working conditions, the aperture can be adjusted according to the size of impurities contained in water, the filter effect is optimized, the impurities are prevented from entering the pump body, contacting with the blades and damaging the blades, the normal operation of the axial flow pump is ensured, the service life of the axial flow pump is prolonged, in addition, the filter mechanism is fixedly connected with the first flange plate through the second flange plate through the screws, the filter mechanism can be detached when the axial flow pump extracts clear water, and the working efficiency of the axial flow pump is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the pump body according to the present invention;

FIG. 3 is a schematic view of the combination of the movable filter plate and the fixed cylinder according to the present invention;

FIG. 4 is a schematic diagram of the explosion structure of the movable filter plate and the fixed filter plate according to the present invention;

FIG. 5 is a schematic structural view of the engaging mechanism of the present invention;

FIG. 6 is an enlarged view of the structure at A in FIG. 3 according to the present invention;

FIG. 7 is a sectional view of the second tooth block in combination with the tooth slot in accordance with the present invention;

fig. 8 is an enlarged view of the structure at B in fig. 5 according to the present invention.

In the figure: 1. a pump body; 11. a fixed seat; 12. a motor; 13. a drive rod; 14. a blade; 15. a fixed mount; 16. a first flange plate; 2. a filtering mechanism; 21. a second flange plate; 22. a fixed cylinder; 23. fixing the filter plate; 24. a movable filter plate; 25. a first tooth block; 26. a turbine; 27. a rotating rod; 28. a first filter hole; 29. a second filter hole; 20. a sealing groove; 211. a seal ring; 212. a movable groove; 213. a first spring; 214. a nose bar; 215. an arc-shaped slot; 299. a hand wheel; 3. a clamping mechanism; 31. a slide cylinder; 32. a second spring; 33. a second tooth block; 34. a through groove; 35. a tooth socket; 36. a limiting block; 37. a limiting groove.

Detailed Description

The invention now will be described in connection with a few, but not all, embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, the present invention provides a technical solution of a bidirectional axial flow pump:

a two-way axial-flow pump, as shown in fig. 1 to 5, includes a pump body 1, the pump body 1 is designed in an arc structure, a fixed seat 11 is fixedly connected to the rear end of the arc outer surface of the pump body 1, a motor 12 is fixedly connected to the outer surface of the upper end of the fixed seat 11, a driving rod 13 is fixedly connected to the front end output shaft of the motor 12, the driving rod 13 penetrates through the pump body 1 and is fixedly connected to a blade 14, a fixed mount 15 is fixedly connected to the inner surface of the pump body 1 at a position close to the rear end of the blade 14, the driving rod 13 is rotatably connected to the fixed mount 15, first flange plates 16 are fixedly connected to openings at both ends of the pump body 1, wherein a filter mechanism 2 is fixedly connected to the front end outer surface of the first flange plate 16 close to the front end of the blade 14 through screws;

the filter mechanism 2 comprises a second flange 21, a fixed cylinder 22, a fixed filter plate 23, a movable filter plate 24, a first tooth block 25, a turbine 26, a rotating rod 27, a first filter hole 28, a second filter hole 29 and a hand wheel 299, wherein the second flange 21 is fixedly connected with the first flange 16 through screws, the outer surface of the front end of the second flange 21 is fixedly connected with the fixed cylinder 22, the front end of the inner surface of the fixed cylinder 22 is fixedly connected with the fixed filter plate 23, the outer surface of the rear end of the fixed filter plate 23 is connected with the movable filter plate 24 in a fitting manner, the annular outer surface of the movable filter plate 24 is rotatably connected with the fixed cylinder 22 through a bearing, the edge position of the upper end of the outer surface of the rear side of the movable filter plate 24 is fixedly connected with the first tooth block 25, the rear end of the first tooth block 25 is connected with the turbine 26 in a meshing manner, and the rotating rod 27 is fixedly connected with the center position of the outer surface of the upper end of the turbine 26, the upper end of the rotating rod 27 penetrates through the fixed cylinder 22 and is fixedly connected with a hand wheel 299, the rotating rod 27 is rotatably connected with the fixed cylinder 22 through a bearing, a plurality of first filtering holes 28 are formed in the fixed filter plate 23, a plurality of second filtering holes 29 are formed in the movable filter plate 24, and the first filtering holes 28 and the second filtering holes 29 are identical in inner diameter and correspond to each other one by one.

Because the axial-flow pump has wide application range and complex working environment, the axial-flow pump not only can be used for irrigation, waterlogging drainage, dock drainage and water level adjustment of a canal ship lock, but also can be used for chemical waste or sewage treatment and other scenes, the impurities contained in the liquid contacted with the axial-flow pump under different working conditions are different, the sizes of the impurities are also different, and the sizes of the diameters of filter holes cannot be adjusted, so that the axial-flow pump has poor filtering effect when working, the impurities can easily enter the pump body 1 and are contacted with and damaged by the blades 14, the normal operation of the axial-flow pump is influenced, and the service life of the axial-flow pump is also shortened at the same time. When the axial flow pump works under different working conditions, the rotating hand wheel 299 rotates to drive the rotating rod 27 to rotate, the rotating rod 27 rotates to drive the turbine 26 to rotate, the turbine 26 drives the first tooth block 25 to rotate so as to drive the movable filter plate 24 to rotate, the second filter hole 29 rotates along with the movable filter plate 24 so as to be staggered with the first filter hole 28, and the purpose of adjusting the aperture size is achieved. In addition, as the filtering mechanism 2 is fixedly connected with the first flange plate 16 through the second flange plate 21 by the screws, the filtering mechanism 2 can be detached when the axial flow pump pumps clear water, so that the working efficiency of the axial flow pump is improved.

As shown in fig. 3 and 6, as an embodiment of the present invention, a seal groove 20 is formed on an outer surface of a front end of the first flange 16, a seal ring 211 is movably connected to a position of an outer surface of a rear end of the second flange 21, the position being close to the seal groove 20, and the seal ring 211 and the seal groove 20 are attached to each other.

When the axial flow pump works, the first flange plate 16 and the second flange plate 21 are fixedly connected only through the screws, the sealing effect is poor, the situation that water body overflows from the joint of the first flange plate 16 and the second flange plate 21 is easily caused, and the normal operation of the axial flow pump is influenced.

As an embodiment of the present invention, as shown in fig. 6, a movable groove 212 is formed on the outer surface of the rear end of the second flange 21 at a position close to the sealing ring 211, and the sealing ring 211 and the movable groove 212 are movably connected by a plurality of first springs 213.

In the working process, in order to ensure the sealing property, the sealing ring 211 and the sealing groove 20 are tightly attached, and the sealing block is easy to deform under the state that the sealing ring 211 and the sealing groove 20 are tightly attached for a long time, so that a gap is formed between the sealing ring 211 and the sealing groove 20, and the sealing property between the sealing ring 211 and the sealing groove 20 is influenced.

As an embodiment of the present invention, as shown in fig. 4, a plurality of protruding rods 214 are fixedly connected to the annular outer surface of the fixed filter plate 23, a plurality of arc-shaped grooves 215 are formed in the inner surface of the movable filter plate 24 at positions close to the protruding rods 214, and the protruding rods 214 and the arc-shaped grooves 215 are attached to each other.

When the movable filter plate 24 is in operation, the movable filter plate 24 is limited due to lack of a limiting mechanism, the turbine 26 is easily separated from the first tooth block 25 due to over rotation, and the movable filter plate 24 cannot be adjusted, in addition, the movable filter plate 24 is positioned in the pump body 1, so that the movable filter plate is inconvenient to observe, and the size of the adjusted aperture cannot be judged, and inconvenience is brought to a user, the movable filter plate 24 and the arc-shaped groove 215 are mutually attached, the arc-shaped groove 215 rotates along with the movable filter plate 24 when the movable filter plate 24 rotates, so that the convex rod 214 and the arc-shaped groove 215 relatively operate, when the arc-shaped groove 215 rotates until the convex rod 214 is contacted with one side in the anticlockwise direction, the aperture is at the maximum, when the arc-shaped groove 215 rotates until the convex rod 214 is contacted with one side in the clockwise direction, the aperture is at the minimum, the movable filter plate 24 is limited by the mutual attachment of the convex rod 214 and the arc-shaped groove 215, the turbine 26 is prevented from rotating excessively to separate from the first tooth block 25, the movable filter plate 24 cannot be adjusted, and meanwhile, the size of the aperture is judged by a user, so that the user can operate the filter plate conveniently.

As an embodiment of the present invention, as shown in fig. 5 and 7, the upper end of the annular outer surface of the rotating rod 27 is slidably connected with the engaging mechanism 3;

the clamping mechanism 3 comprises a sliding cylinder 31, a second spring 32, a second toothed block 33, a through groove 34 and a toothed groove 35, the sliding cylinder 31 is connected to the upper end of the annular outer surface of the rotating rod 27 in a sliding mode, the sliding cylinder 31 is connected with the rotating rod 27 through the second spring 32, the outer surface of the upper end of the sliding cylinder 31 is fixedly connected with the hand wheel 299, the second toothed block 33 is fixedly connected to the annular outer surface of the sliding cylinder 31, the through groove 34 is formed in the position, close to the second toothed block 33, of the inside of the fixed cylinder 22, the toothed groove 35 is formed in the upper end of the inner surface of the through groove 34, and the outer surface of the second toothed block 33 is meshed with the toothed groove 35.

When the filter is in operation, due to the lack of the clamping mechanism 3 for fixing the rotating rod 27 and the turbine 26, the movable filter plate 24 is easy to be stressed to rotate, the situation that the aperture size is changed occurs, and the normal operation of the filter mechanism 2 is affected, the clamping mechanism 3 is arranged, the rotating rod 27 and the turbine 26 are fixed by utilizing the mutual clamping of the second tooth block 33 and the tooth socket 35, when the rotating rod 27 needs to be rotated, the hand wheel 299 is pressed to slide the sliding cylinder 31 downwards to drive the second tooth block 33 to slide downwards to be separated from the tooth socket 35, the sliding cylinder 31 is driven to rotate by rotating the hand wheel 299, the rotating rod 27 can be driven to rotate, after the hand wheel 299 is loosened, the sliding cylinder 31 moves upwards under the elastic force of the second spring 32 to drive the second tooth block 33 to move upwards and be clamped with the tooth socket 35, the rotating rod 27 is fixed again, the second tooth block 33 and the tooth socket 35 are arranged to be mutually clamped, so that the rotating rod 27 and the turbine 26 are fixed, the situation that the movable filter plate 24 is stressed to rotate due to lack of the clamping mechanism 3 for fixing the rotating rod 27 and the turbine 26, so that the aperture size is changed is prevented, and the normal operation of the filter mechanism 2 is ensured.

As an embodiment of the present invention, as shown in fig. 8, a plurality of limiting grooves 37 are uniformly formed at the upper end of the annular outer surface of the rotating rod 27, a plurality of limiting blocks 36 are uniformly and fixedly connected to the annular inner surface of the sliding cylinder 31 at positions close to the limiting grooves 37, and the limiting blocks 36 are slidably connected to the limiting grooves 37.

When the device works, the rotating rod 27 is connected with the sliding cylinder 31 only through the spring, so that the connection effect is poor, the sliding cylinder 31 and the rotating rod 27 are in relative motion when the rotating hand wheel 299 drives the sliding cylinder 31 to rotate, and the operation is inconvenient for a user.

The using method comprises the following steps: when the invention works, firstly the motor 12 is started, the motor 12 runs to drive the driving rod 13 to rotate, the driving rod 13 drives the blades 14 to rotate to form negative pressure so as to enable water flow to be conveyed to the upper end of the pump body 1 from the right side, through the arrangement of the filtering mechanism 2 and the clamping mechanism 3, when the axial flow pump works under different working conditions, the hand wheel 299 is pressed to enable the sliding cylinder 31 to slide downwards and drive the second tooth block 33 to slide downwards so as to be separated from the tooth groove 35, the hand wheel 299 is rotated to drive the sliding cylinder 31 to rotate, namely, the rotating rod 27 is driven to rotate the turbine 26, the turbine 26 drives the first tooth block 25 to rotate so as to drive the movable filter plate 24 to rotate, the second filter hole 29 rotates along with the movable filter plate 24, so as to be staggered with the first filter hole 28, thereby realizing the purpose of adjusting the aperture size, and the arc-shaped groove 215 rotates along with the movable filter plate 24 when the movable filter plate 24 rotates, the convex rod 214 and the arc-shaped groove 215 run relatively, when the arc-shaped groove 215 rotates until the convex rod 214 contacts with one side of the arc-shaped groove in the anticlockwise direction, the aperture is at the maximum, when the arc-shaped groove 215 rotates until the convex rod 214 contacts with one side of the arc-shaped groove in the clockwise direction, the aperture is at the minimum, after the aperture is adjusted, the hand wheel 299 is loosened, the sliding cylinder 31 moves upwards under the elastic force action of the second spring 32, the second tooth block 33 is driven to move upwards and is clamped with the tooth socket 35, the rotating rod 27 is fixed again, because the filtering mechanism 2 is fixedly connected with the first flange plate 16 through the screws by the second flange plate 21, when the shaft pumps clean water, the filtering mechanism 2 can be detached, and therefore the working efficiency of the axial flow pump is improved.

The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.

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

Claims

1. A two-way axial-flow pump, includes the pump body (1), its characterized in that: the pump body (1) is designed to be of an arc-shaped structure, a fixed seat (11) is fixedly connected to the rear end of the arc-shaped outer surface of the pump body (1), a motor (12) is fixedly connected to the outer surface of the upper end of the fixed seat (11), a driving rod (13) is fixedly connected to an output shaft at the front end of the motor (12), the driving rod (13) penetrates through the pump body (1) and is fixedly connected with a blade (14), a fixed frame (15) is fixedly connected to the position, close to the rear end of the blade (14), of the inner surface of the pump body (1), the driving rod (13) is rotatably connected with the fixed frame (15), first flange plates (16) are fixedly connected to openings at two ends of the pump body (1), and a filtering mechanism (2) is fixedly connected to the outer surface of the front end of the first flange plate (16) close to the front end of the blade (14) through screws;

the filter mechanism (2) comprises a second flange plate (21), a fixed cylinder (22), a fixed filter plate (23), a movable filter plate (24), a first tooth block (25), a turbine (26), a rotating rod (27), a first filter hole (28), a second filter hole (29) and a hand wheel (299), wherein the second flange plate (21) is fixedly connected with a first flange plate (16) through a screw, the outer surface of the front end of the second flange plate (21) is fixedly connected with the fixed cylinder (22), the front end of the inner surface of the fixed cylinder (22) is fixedly connected with the fixed filter plate (23), the outer surface of the rear end of the fixed filter plate (23) is connected with the movable filter plate (24) in an attaching manner, the annular outer surface of the movable filter plate (24) is rotatably connected with the fixed cylinder (22) through a bearing, and the edge position of the upper end of the outer surface of the rear side of the movable filter plate (24) is fixedly connected with the first tooth block (25), the rear end meshing of first tooth piece (25) is connected with turbine (26), fixedly connected with bull stick (27) is put to the upper end surface central point of turbine (26), the upper end of bull stick (27) runs through solid fixed cylinder (22) and fixedly connected with hand wheel (299), rotate through the bearing between bull stick (27) and the solid fixed cylinder (22) and be connected, the first filtration pore (28) of a plurality of have been seted up to the inside of solid fixed filter plate (23), a plurality of second filtration pore (29) have been seted up to the inside of activity filter plate (24), first filtration pore (28) are the same with second filtration pore (29) internal diameter and the two one-to-one.

2. A bi-directional axial flow pump according to claim 1, wherein: seal groove (20) have been seted up to the front end surface of first ring flange (16), the position swing joint that the rear end surface of second ring flange (21) is close to seal groove (20) has sealing ring (211), sealing ring (211) and seal groove (20) are laminated each other.

3. A bi-directional axial flow pump according to claim 2, wherein: the outer surface of the rear end of the second flange plate (21) is provided with a movable groove (212) at a position close to the sealing ring (211), and the sealing ring (211) is movably connected with the movable groove (212) through a plurality of first springs (213).

4. A bi-directional axial flow pump according to claim 3, wherein: the annular outer surface of the fixed filter plate (23) is fixedly connected with a plurality of protruding rods (214), a plurality of arc-shaped grooves (215) are formed in the positions, close to the protruding rods (214), of the inner surface of the movable filter plate (24), and the protruding rods (214) are attached to the arc-shaped grooves (215) mutually.

5. A bi-directional axial flow pump according to claim 2, wherein: the upper end of the annular outer surface of the rotating rod (27) is connected with a clamping mechanism (3) in a sliding way;

clamping mechanism (3) are including smooth section of thick bamboo (31), second spring (32), second dog (33), logical groove (34) and tooth's socket (35), smooth section of thick bamboo (31) sliding connection is in the annular surface upper end of bull stick (27), be connected through second spring (32) between smooth section of thick bamboo (31) and the bull stick (27), the upper end surface and hand wheel (299) fixed connection of smooth section of thick bamboo (31), the annular surface fixed connection of smooth section of thick bamboo (31) has second dog (33), logical groove (34) have been seted up to the inside position that is close to second dog (33) of fixed section of thick bamboo (22), tooth's socket (35) have been seted up to the internal surface upper end of logical groove (34), the surface and tooth's socket (35) intermeshing of second dog (33).

6. A bi-directional axial flow pump according to claim 5, wherein: a plurality of limiting grooves (37) are evenly formed in the upper end of the annular outer surface of the rotating rod (27), a plurality of limiting blocks (36) are fixedly connected to the positions, close to the limiting grooves (37), of the annular inner surface of the sliding barrel (21), and the limiting blocks (36) are connected with the limiting grooves (37) in a sliding mode.