CN113586526A

CN113586526A - Bidirectional axial flow pump

Info

Publication number: CN113586526A
Application number: CN202110933295.8A
Authority: CN
Inventors: 郑家龙; 林胜杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-14
Filing date: 2021-08-14
Publication date: 2021-11-02

Abstract

The invention discloses a bidirectional axial flow pump, which comprises an axial flow pipe, wherein a driving shaft is connected in the axial flow pipe in a penetrating and rotating manner, an axial flow fan blade is fixedly connected to the side wall of the driving shaft, a supporting frame is fixedly connected to the end face of the right side of the axial flow pipe, the driving shaft is connected with the supporting frame in a penetrating and rotating manner, an outer fixing ring is fixedly connected to the side wall of the axial flow pipe, an installation groove is formed in the inner side wall of the outer fixing ring, a first flow stabilizing mechanism for performing flow stabilizing treatment on water discharged from the axial flow pipe is arranged in the installation groove, the first flow stabilizing mechanism and a second flow stabilizing mechanism are arranged, the rotation state of the discharged liquid is decelerated by the first flow stabilizing mechanism, the spiral turbulence of the liquid is adjusted, meanwhile, the second flow stabilizing mechanism and the vortex fan blade rotate in the opposite directions, the liquid is in a flow stabilizing state when being discharged from a pipeline, crops and the turbulence are prevented from being influenced by the turbulence in the process of pumping water by the ship due to the direct discharge of the turbulent state .

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 a pump for conveying liquid in the axial direction by the action force of the blades of the rotating impeller on the liquid, and there are vertical, horizontal, inclined and through-flow pumps.

A prior art patent (publication No. CN104989667A) is a bidirectional axial flow pump, which includes a pump body with an impeller inside and rotating with a pump shaft. The pump body is in a bent pipe shape, an inner shaft seat is arranged in an inner cavity at one end of the pump body, and an outer shaft seat coaxial with the inner shaft seat is arranged on the outer wall of the bent section. Two ends of the pump shaft are supported by the inner shaft seat and the outer shaft seat respectively to rotate together, and the outward extending end of the pump shaft is connected with the output shaft of the motor through a coupling. The impeller is of an open structure, blades uniformly distributed on the wall of the hub are obliquely arranged in a clockwise direction, and an inlet installation angle beta 1 and an outlet installation angle beta 2 of the blades are acute angles with the same size. Because the shape and the placement angle of the inlet and outlet edges of the blades of the impeller are the same, and the efficiency generated by the forward rotation and the reverse rotation of the impeller is the same, the pump body does not have a fixed inlet and a fixed outlet, and the inlet can be converted into the outlet and the outlet can be converted into the inlet only by controlling the motor to rotate in the opposite direction. The invention can easily automatically control the motor to rotate in a turning way, and is particularly suitable for being matched with a ballast system of an unmanned cabin.

When the bidirectional axial flow pump is used, the pump body is pumped by the pressure of liquid, and then the pump body is matched with the worm wheel fan blades to convey the liquid, and the requirement of the process on the pumping pressure of the axial flow pump is higher, so that the length of a circulation pipeline of the axial flow pump is often shorter when the axial flow pump is used, namely the conveying distance is shorter, and when the axial flow pump is used for pumping and conveying the liquid in the actual use process, the discharged liquid is mostly in a turbulent flow state, the turbulence has larger influence on pumping and discharging water in ship application and agricultural application, and simultaneously impact is caused on a ship body when the liquid is discharged, and simultaneously the influence is caused on the growth of crops in agricultural irrigation:

therefore, a bidirectional axial flow pump is provided.

Disclosure of Invention

The invention aims to provide a bidirectional axial flow pump, which is characterized in that a first flow stabilizing mechanism and a second flow stabilizing mechanism are arranged, the first flow stabilizing mechanism is utilized to carry out a speed reduction process on the rotation state of discharged liquid, so that the spiral turbulence of the liquid is adjusted, meanwhile, the second flow stabilizing mechanism and vortex fan blades rotate in opposite directions, so that the liquid is in a steady flow state when being discharged out of a pipeline, the influence of turbulence on crops and steamships in the process of water suction caused by the direct discharge of the liquid in the turbulence state is avoided, and the problems in the background art are solved.

In order to achieve the purpose, the invention provides the following technical scheme: a bidirectional axial flow pump comprises an axial flow pipe, wherein a driving shaft is connected to the axial flow pipe in a penetrating and rotating mode, an axial flow fan blade is fixedly connected to the side wall of the driving shaft, a supporting frame is fixedly connected to the right side end face of the axial flow pipe, the driving shaft is connected to the supporting frame in a penetrating and rotating mode, an outer fixing ring is fixedly connected to the side wall of the axial flow pipe, a mounting groove is formed in the inner side wall of the outer fixing ring, a first flow stabilizing mechanism used for flow stabilizing treatment of water of the discharged axial flow pipe is arranged in the mounting groove, a second flow stabilizing mechanism used for further flow stabilizing treatment of water of the discharged axial flow pipe is arranged on the side wall of the driving shaft, a driving mechanism used for driving the first flow stabilizing mechanism is arranged on the side wall of the driving shaft, a pressurizing pipe is fixedly connected to the side wall of the lower end of the axial flow pipe, and a pressurizing mechanism used for pressurizing and absorbing water in the water sucking process of the axial flow pipe is arranged in the pressurizing pipe, and a transmission mechanism for providing driving force for the supercharging mechanism in the supercharging process is arranged in the axial flow pipe.

The first flow stabilizing mechanism and the second flow stabilizing mechanism are arranged, the first flow stabilizing mechanism is utilized to carry out the speed reduction process on the rotation state of the discharged liquid, the adjustment on the spiral turbulence of the liquid is realized, meanwhile, the second flow stabilizing mechanism and the vortex fan blades rotate in the opposite directions, the liquid is in the flow stabilizing state when being discharged out of the pipeline, and the influence of turbulence on crops and steamships in the process of water suction caused by the direct discharge of the liquid in the turbulence state is avoided.

Preferably, first stationary flow mechanism is including rotating the rotation inner tube of connection in the mounting groove, the connection base that a plurality of circumference set up of fixedly connected with on the lateral wall of rotation inner tube, fixedly connected with water conservancy diversion piece on the inboard wall side of connection base, the guiding gutter has been seted up in the water conservancy diversion piece.

Through setting up structures such as water conservancy diversion piece, guiding gutter and rotation inner tube, utilize the difference in rotational speed between the rotation of water conservancy diversion piece and the vortex flabellum to carry out the speed reduction to the liquid that flows through the water conservancy diversion piece and handle, reduce the rotational speed of liquid under the turbulent state, realize preliminary stationary flow to the turbulent flow and handle.

Wherein the inner rotating pipe is in a trapezoidal shape, and the inner diameter of the inner rotating pipe is gradually reduced from left to right.

Preferably, second stationary flow mechanism is including rotating the drive tube of connection on the drive shaft lateral wall, the right side end lateral wall of drive shaft with the equal fixedly connected with drive gear of right side terminal surface of drive tube, fixedly connected with connecting rod on the inside wall of rotation inner tube, the end rotation of connecting rod is connected with transition gear, transition gear all meshes two drive gear, equal fixedly connected with stationary flow frame on the both ends lateral wall about the drive tube.

By arranging the second flow stabilizing mechanism, the rotation direction of the liquid in the flowing process is adjusted by utilizing the reverse rotation of the driving pipe and the driving shaft, the liquid keeps spiral conveying under the suction action of the vortex fan blades, the flow stabilizing treatment of the liquid is realized under the action of the reverse acting force of the flow stabilizing frame, and a slow flow flowing state is formed.

Preferably, the driving mechanism comprises a supporting ring fixedly connected to the side wall of the driving shaft, a plurality of sliding sleeves arranged at equal intervals are fixedly connected to the side wall of the supporting ring in the circumferential direction, a supporting rod is fixedly connected to the inner bottom of each sliding sleeve, a driving plate is sleeved on the side wall of the supporting rod in a sliding manner, a buffer spring is elastically connected between the inner side wall of the driving plate and the supporting ring, two contact rollers symmetrically arranged are rotatably connected to the outer side wall of the driving plate, the contact rollers are connected with a rotating inner tube in a rolling manner, a limiting groove is formed in the side wall of the driving shaft, a plurality of limiting racks arranged in the circumferential direction are fixedly connected to the side wall of the limiting groove, a movable sleeve ring is slidably connected to the limiting groove, a plurality of limiting racks are slidably sleeved on the movable sleeve ring, and a fixed sleeve ring is fixedly connected to the side wall of the driving shaft, the limiting rod that a plurality of circumference set up of fixedly connected with in the activity lantern ring, it is a plurality of the limiting rod runs through the fixed lantern ring of sliding connection and the terminal fixed connection support ring in right side, elastic connection has a plurality of reset spring between activity lantern ring and the fixed lantern ring, the reset spring cover is established on the limiting rod.

Through setting up actuating mechanism, the rotation that utilizes the drive plate to drive the rotation of rotating the inner tube to a certain extent with the rolling friction who rotates the inner tube inner wall, realizes through the traction of cooperation activity lantern ring and gag lever post to the support ring and the drive plate activity on the support ring, provides drive power to the rotation of rotating the inner tube under the impact effect that rivers flow, by the rolling friction drive again, can realize the difference in rotational speed between drive plate and the rotation inner tube at the drive in-process of reality, provide the counter resistance for the circulation of liquid is slowed down.

Preferably, booster mechanism includes the pressure boost pipe that two symmetries on the lateral wall of axial flow pipe below set up, sliding connection has the pressure boost piston in the pressure boost pipe, the up end of pressure boost piston rotates and is connected with the dwang, the up end of dwang rotates and is connected with the transition pole, a plurality of adjustment tanks have been seted up to circumference on the lateral wall of axial flow pipe, sliding connection has the regulating block in the adjustment tank, the lateral wall of regulating block runs through adjustment tank and fixedly connected with drive plate, the below of drive plate is equipped with and drives actuating cylinder, just drive the lower terminal surface of actuating cylinder's flexible post fixed connection drive plate.

Through setting up booster mechanism, utilize the pressure boost piston to reciprocate in the pressure tube, be in the pressure boost of the cavity pressure on the water inlet position and carrying out the supplementary suction of liquid suction in-process in the counter flow pipe, provide the pressure of extraction for the pump body.

Preferably, drive mechanism includes the drive wheel of fixed connection on the drive shaft lateral wall, sliding connection has two reciprocating levers that the symmetry set up in the axial compressor pipe, two fixedly connected with drive ring between the reciprocating lever, equal fixedly connected with rack on the inside wall of drive ring and the outside lateral wall of drive wheel, equal fixedly connected with link on both sides side about the drive ring, the link rotates and connects the transition pole, the up end of axial compressor pipe is fixed and is communicated with the sealed tube, the up end fixedly connected with extrusion pipe of sealed tube, upper end reciprocating lever run through sliding connection in the extrusion pipe and fixedly connected with extrusion piston on its lateral wall, the extrusion pipe passes through connecting pipe intercommunication tubular shaft.

Through setting up transmission structure, utilize the drive rack meshing in drive wheel and the drive ring, realize the reciprocating motion process of drive ring, the drive ring provides drive power through link and drive rod to the removal of booster piston this moment, realizes the drive of the reciprocating motion process of booster piston in the booster pipe.

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

1. the first flow stabilizing mechanism and the second flow stabilizing mechanism are arranged, the first flow stabilizing mechanism is utilized to carry out a speed reduction process on the rotation state of the discharged liquid, so that the spiral turbulence of the liquid is adjusted, meanwhile, the second flow stabilizing mechanism and the vortex fan blades rotate in opposite directions, so that the liquid is in a steady flow state when being discharged out of the pipeline, and the influence of turbulence on crops and steamships in the process of water suction caused by the direct discharge of the liquid in the turbulence state is avoided;

2. through setting up structures such as water conservancy diversion piece, guiding gutter and rotation inner tube, utilize the difference in rotational speed between the rotation of water conservancy diversion piece and the vortex flabellum to carry out the speed reduction to the liquid that flows through the water conservancy diversion piece and handle, reduce the rotational speed of liquid under the turbulent state, realize preliminary stationary flow to the turbulent flow and handle.

3. By arranging the second flow stabilizing mechanism, the rotation direction of the liquid in the flowing process is adjusted by utilizing the reverse rotation of the driving pipe and the driving shaft, the liquid keeps spiral conveying under the suction action of the vortex fan blades, the flow stabilizing treatment of the liquid is realized under the action of the reverse acting force of the flow stabilizing frame, and a slow flow flowing state is formed.

4. Through setting up actuating mechanism, the rotation that utilizes the drive plate to drive the rotation of rotating the inner tube to a certain extent with the rolling friction who rotates the inner tube inner wall, realizes through the traction of cooperation activity lantern ring and gag lever post to the support ring and the drive plate activity on the support ring, provides drive power to the rotation of rotating the inner tube under the impact effect that rivers flow, by the rolling friction drive again, can realize the difference in rotational speed between drive plate and the rotation inner tube at the drive in-process of reality, provide the counter resistance for the circulation of liquid is slowed down.

5. Through setting up booster mechanism, utilize the booster piston to reciprocate in the booster tube, be in the pressure boost of the cavity pressure on the water inlet position and carrying out the supplementary suction of liquid suction in-process in the counter shaft flow pipe, provide the pressure of extraction for the pump body, through setting up transmission structure, utilize the drive rack meshing of drive wheel in with the actuating ring, realize the reciprocating motion process of driving ring, the driving ring provides drive power through link and drive rod to the removal of booster piston this moment, realize the drive of the reciprocating motion process of booster piston in the booster tube.

Drawings

FIG. 1 is a perspective view of a pump body according to the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is a left side cross-sectional view of a support ring of the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 2 according to the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 6 is a schematic view of the engagement of the drive ring with the drive wheel of the present invention;

fig. 7 is a schematic perspective view of an adjusting block according to the present invention.

In the figure: 1. an axial flow tube; 2. an outer fixing ring; 3. a drive shaft; 4. mounting grooves; 5. rotating the inner tube; 6. connecting a base; 7. a flow guide block; 8. a diversion trench; 9. a support ring; 10. a drive plate; 11. a flow stabilizing frame; 12. a drive gear; 13. a transition gear; 14. a connecting rod; 15. a support frame; 16. a limiting groove; 17. a limit rack; 18. a movable collar; 19. a fixed collar; 20. a limiting rod; 21. a sealing tube; 22. extruding the tube; 23. a reciprocating lever; 24. a squeeze piston; 25. a drive ring; 26. a pressure increasing pipe; 27. a connecting frame; 28. a booster piston; 29. rotating the rod; 30. moving the plate; 31. an adjustment groove; 32. a driving cylinder; 33. an adjusting block; 34. a support bar; 35. and a driving wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Referring to fig. 1 to 7, the present invention provides a technical solution:

a bidirectional axial flow pump, as shown in figures 1 to 7, comprises an axial flow tube 1, a driving shaft 3 is connected in the axial flow tube 1 in a penetrating and rotating manner, an axial flow fan blade is fixedly connected on the side wall of the driving shaft 3, a supporting frame 15 is fixedly connected on the right side end face of the axial flow tube 1, the driving shaft 3 is connected with the supporting frame 15 in a penetrating and rotating manner, an outer fixing ring 2 is fixedly connected on the side wall of the axial flow tube 1, an installation groove 4 is arranged on the inner side wall of the outer fixing ring 2, a first flow stabilizing mechanism for stabilizing the water discharged from the axial flow tube 1 is arranged in the installation groove 4, a second flow stabilizing mechanism for further stabilizing the water discharged from the axial flow tube 1 is arranged on the side wall of the driving shaft 3, a driving mechanism for driving the first flow stabilizing mechanism is arranged on the side wall of the driving shaft 3, a pressurizing pipe 26 is fixedly connected on the side wall of the lower end of the axial flow tube 1, a pressurizing mechanism for pressurizing and absorbing the water in the water sucking process of the axial flow tube 1 is arranged in the pressurizing pipe 26, the axial flow pipe 1 is internally provided with a transmission mechanism for providing driving force in the pressurizing process of the pressurizing mechanism.

The first flow stabilizing mechanism and the second flow stabilizing mechanism are arranged, the first flow stabilizing mechanism is utilized to carry out a speed reduction process on the rotation state of the discharged liquid, so that the spiral turbulence of the liquid is adjusted, meanwhile, the second flow stabilizing mechanism and the vortex fan blades rotate in opposite directions, so that the liquid is in a steady flow state when being discharged out of the pipeline, and the influence of turbulence on crops and steamships in the process of water suction caused by the direct discharge of the liquid in the turbulence state is avoided;

when the liquid flow stabilizing device works, the first flow stabilizing mechanism performs a rotation speed reduction process on liquid flowing through the axial flow pipe, meanwhile, the second speed reducing mechanism is matched for driving the liquid in the opposite direction in the flowing process, and the liquid tends to be in a flow stabilizing state from a turbulent state in the flowing process.

As an embodiment of the present invention, as shown in fig. 1 and 2, the first flow stabilizing mechanism includes a rotating inner tube 5 rotatably connected in the installation groove 4, a plurality of circumferentially arranged connection bases 6 are fixedly connected to a side wall of the rotating inner tube 5, a flow guide block 7 is fixedly connected to an inner side wall side of the connection bases 6, and a flow guide groove 8 is formed in the flow guide block 7.

By arranging the structures of the guide block 7, the guide groove 8, the rotating inner pipe 5 and the like, the liquid flowing through the guide block 7 is subjected to speed reduction treatment by utilizing the rotation speed difference between the rotation of the guide block 7 and the vortex fan blades, the rotation speed of the liquid in a turbulent flow state is reduced, and primary steady flow treatment is realized on the turbulent flow;

wherein the inner rotating pipe 5 is in a trapezoidal shape, and the inner diameter thereof is gradually reduced from left to right.

When the liquid guiding device works, when liquid flows through the flow guiding block 7, the liquid near the flow guiding block 7 is subjected to rotation speed reduction under the rotation action of the rotating inner pipe 5, and when the liquid flows through the flow guiding groove 8, the flow of the liquid is subjected to directional flow guiding, so that the turbulent flow speed and the rotation speed in a turbulent flow state are reduced.

As an embodiment of the present invention, as shown in fig. 4, the second flow stabilizing mechanism includes a driving tube rotatably connected to a side wall of the driving shaft 3, a driving gear 12 is fixedly connected to both a right side end side wall of the driving shaft and a right side end face of the driving tube, a connecting rod 14 is fixedly connected to an inner side wall of the rotating inner tube 5, a transition gear 13 is rotatably connected to a terminal of the connecting rod 14, the transition gear 13 is respectively engaged with the two driving gears 12, and flow stabilizing frames 11 are fixedly connected to both left and right side walls of the driving tube.

By arranging the second flow stabilizing mechanism, the driving gear 12 at the right end of the driving shaft 3 is meshed with the transition gear 13 to drive the transition gear to rotate, (in the process, the driving shaft 3 is supposed to rotate clockwise at first), then the transition gear 13 is meshed with the driving gear 12, the rotating direction of the transition gear is tangential to the driving gear 12, namely, the transition gear rotates anticlockwise in the left direction, when the transition gear is meshed with the driving gear 12 at the right end of the driving pipe, the driving gear 12 at the right end of the driving pipe rotates anticlockwise, but at the same time, the driving shaft 3 and the driving gear 12 on the driving pipe are arranged oppositely, so the rotating directions of the driving shaft 3 and the driving gear 12 on the driving pipe are opposite in the same visual angle, and the rotating directions of the driving pipe and the driving shaft 3 can be used for adjusting the rotating direction in the liquid flowing process, and the liquid can be kept spirally conveyed under the suction effect of the vortex blades, under the action of the reverse acting force of the flow stabilizing frame 11, the flow stabilizing treatment of the liquid is realized, and a slow flow state is formed;

as an embodiment of the present invention, as shown in fig. 2 to 5, the driving mechanism includes a supporting ring 9 fixedly connected to a side wall of the driving shaft 3, a plurality of sliding sleeves arranged at equal intervals are fixedly connected to a side wall of the supporting ring 9 in a circumferential direction, a supporting rod 34 is fixedly connected to an inner bottom portion of the sliding sleeve, a driving plate 10 is slidably sleeved on a side wall of the supporting rod 34, a buffer spring is elastically connected between an inner side wall of the driving plate 10 and the supporting ring 9, two contact rollers symmetrically arranged are rotatably connected to an outer side wall of the driving plate 10, the contact rollers are rotatably connected to the rotating inner tube 5, a limiting groove 16 is formed in the side wall of the driving shaft 3, a plurality of limiting racks 17 arranged in the circumferential direction are fixedly connected to a side wall of the limiting groove 16, a movable collar 18 is slidably connected to the limiting groove 16, a plurality of limiting racks 17 are slid by the movable collar 18, a fixed collar 19 is fixedly connected to a side wall of the driving shaft 3, a plurality of circumferentially arranged limiting rods 20 are fixedly connected in the movable sleeve ring 18, the limiting rods 20 penetrate through the fixed sleeve ring 19 in sliding connection and are fixedly connected with the support ring 9 at the tail end of the right side, a plurality of reset springs are elastically connected between the movable sleeve ring 18 and the fixed sleeve ring 19, and the reset springs are sleeved on the limiting rods 20.

By arranging the driving mechanism, the rotation of the rotating inner tube 5 is driven to a certain extent by utilizing the rolling friction between the driving plate 10 and the inner wall of the rotating inner tube 5, so that the traction of the movable sleeve ring 18 and the limiting rod 20 to the supporting ring 9 is matched, the driving plate 10 moves on the supporting ring 9, the driving force is provided for the rotation of the rotating inner tube 5 under the impact effect of water flow, and the driving force is driven by the rolling friction, so that the rotation speed difference between the driving plate 10 and the rotating inner tube can be realized in the actual driving process, and the reverse resistance is provided for the circulation deceleration of liquid;

when in work, the driving plate 10 and the inner wall of the rotating inner tube 5 are in rolling friction, and the rotating inner tube 5 is driven to rotate by the rolling friction, because the friction force of rolling friction is small, the rotating speed of the rotating inner pipe 5 is far lower than that of the driving shaft 3, at this time, because the flowing impact of the liquid to the supporting ring 9, the supporting ring 9 has the tendency of moving to the right, at this time, because the inner diameter of the rotating inner pipe 5 is reduced from left to right, at this time, the contact tightness between the supporting ring 9 and the rotating inner pipe 5 is enhanced, the driving force for rotating the inner tube 5 is increased, which is beneficial to improving the rotating speed of the rotating inner tube 5, and simultaneously, the supporting ring 9 is dragged under the action of a plurality of limiting rods 20 between the fixed lantern ring 19 and the movable lantern ring 18, when the impact force of the water flow is smaller than the elastic thrust of the return spring, the movable lantern ring 18 drives the support ring 9 to slowly return.

As an embodiment of the present invention, as shown in fig. 2 to 7, the pressurizing mechanism includes two symmetrically disposed pressurizing pipes 26 fixedly connected to a lower side wall of the axial flow pipe 1, a pressurizing piston 28 is slidably connected in the pressurizing pipe 26, an upper end surface of the pressurizing piston 28 is rotatably connected to a transmission rod 29, an upper end surface of the transmission rod 29 is rotatably connected to a transition rod, a plurality of adjusting grooves 31 are circumferentially formed on the side wall of the axial flow pipe 1, adjusting blocks 33 are slidably connected in the adjusting grooves 31, a side wall of the adjusting block 33 penetrates through the adjusting grooves 31 and is fixedly connected to a moving plate 30, a driving cylinder 32 is disposed below the moving plate 30, and a telescopic column of the driving cylinder 32 is fixedly connected to a lower end surface of the moving plate 30.

By arranging a pressurization mechanism, a pressurization piston 28 moves up and down in a pressurization pipe 26, and the pressurization of the cavity pressure at the position of a water inlet in the axial flow pipe 1 and the auxiliary suction in the liquid suction process are realized, so that the suction pressure is provided for the pump body;

when the axial flow pump works, the pressure boost piston 28 changes the suction cavity pressure in the axial flow pipe 1 in the process of moving up and down in the pressure boost pipe 26, when the pressure boost piston 28 moves down, the cavity pressure in the axial flow pipe 1 is reduced, and the axial flow pipe is placed in a cavity at one end in liquid, the liquid is pressed into the axial flow pipe 1 under the action of atmospheric pressure to provide initial pressure for the suction process of a pump body, so that the subsequent liquid suction process is assisted, meanwhile, the moving plate 30 is driven to move under the action of the driving cylinder 32, at the moment, the moving plate 30 drives the separation and combination of the internal adjusting blocks 33, when the adjusting blocks 33 are combined to form a cone shape, the pressure of water flow sucked into the axial flow pipe 1 is increased, and when the adjusting blocks 33 are separated, the sucked liquid is in a normal pressure size.

As an embodiment of the present invention, as shown in fig. 6, the transmission mechanism includes a driving wheel 35 fixedly connected to a side wall of the driving shaft 3, two symmetrically disposed reciprocating rods 23 are slidably connected in the axial flow pipe 1, a driving ring 25 is fixedly connected between the two reciprocating rods 23, racks are fixedly connected to an inner side wall of the driving ring 25 and an outer side wall of the driving wheel 35, connecting frames 27 are fixedly connected to left and right end sides of the driving ring 25, the connecting frames 27 are rotatably connected to transition rods, a sealing pipe 21 is fixed and communicated to an upper end surface of the axial flow pipe 1, an extruding pipe 22 is fixedly connected to an upper end surface of the sealing pipe 21, the upper end reciprocating rod is slidably connected in the extruding pipe 22, and an extruding piston 24 is fixedly connected to a side wall of the extruding pipe 22, and the extruding pipe 22 is communicated with the axial flow pipe 1 through a connecting pipe.

Through the arrangement of a transmission structure, the driving wheel 35 is meshed with a driving rack in the driving ring 25 to realize the reciprocating movement process of the driving ring 25, at the moment, the driving ring 25 provides driving power for the movement of the booster piston 28 through the connecting frame 27 and the transmission rod 29, and the driving of the reciprocating movement process of the booster piston 28 in the booster pipe 26 is realized;

when the axial flow tube pressure-increasing device works, the rotation of the driving shaft 3 drives the driving wheel 35 to rotate, at the same time, the driving wheel 35 is meshed with the rack on the driving ring 25 to provide driving power for the driving ring 25 to move up and down in a reciprocating mode, then the connecting frame 27 on the driving ring 25 drives the transmission rod 29 to lift and press the pressure-increasing piston 28, and therefore the intermittent changing process of the cavity pressure in the axial flow tube 1 is achieved, and meanwhile the extrusion piston 24 is driven to move in the extrusion tube 22 in a reciprocating mode under the action of the reciprocating rod 23 and extrudes and sucks air in the axial flow tube 1.

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 bidirectional axial flow pump comprises an axial flow pipe (1) and is characterized in that a driving shaft (3) is connected in the axial flow pipe (1) in a penetrating and rotating mode, axial flow fan blades are fixedly connected to the side wall of the driving shaft (3), a supporting frame (15) is fixedly connected to the end face of the right side of the axial flow pipe (1), the driving shaft (3) is connected with the supporting frame (15) in a penetrating and rotating mode, an outer fixing ring (2) is fixedly connected to the side wall of the axial flow pipe (1), a mounting groove (4) is formed in the inner side wall of the outer fixing ring (2), a first flow stabilizing mechanism used for flow stabilizing treatment of water discharged from the axial flow pipe (1) is arranged in the mounting groove (4), a second flow stabilizing mechanism used for further flow stabilizing treatment of the water discharged from the axial flow pipe (1) is arranged on the side wall of the driving shaft (3), and a driving mechanism used for driving the first flow stabilizing mechanism is arranged on the side wall of the driving shaft (3), equal fixedly connected with pressure boost pipe (26) on the lower extreme lateral wall of axial flow pipe (1), be equipped with in pressure boost pipe (26) and be used for to axial flow pipe (1) pressure boost mechanism that the in-process pressure boost of drawing water absorbs water, be equipped with in axial flow pipe (1) and be used for providing the drive mechanism of power to the pressure boost mechanism pressure boost in-process.

2. The bidirectional axial flow pump according to claim 1, wherein the first flow stabilizing mechanism comprises a rotating inner pipe (5) rotatably connected in the mounting groove (4), a plurality of circumferentially arranged connecting bases (6) are fixedly connected to a side wall of the rotating inner pipe (5), a flow guide block (7) is fixedly connected to an inner side wall of each connecting base (6), and a flow guide groove (8) is formed in each flow guide block (7).

3. The bidirectional axial flow pump according to claim 2, wherein the second flow stabilizing mechanism comprises a driving pipe rotatably connected to a side wall of the driving shaft (3), a driving gear (12) is fixedly connected to both a right side end wall of the driving shaft (3) and a right side end face of the driving pipe, a connecting rod (14) is fixedly connected to an inner side wall of the rotating inner pipe (5), a transition gear (13) is rotatably connected to a tail end of the connecting rod (14), the transition gear (13) is respectively engaged with the two driving gears (12), and flow stabilizing frames (11) are fixedly connected to both left and right side end walls of the driving pipe.

4. The bidirectional axial flow pump according to claim 3, wherein the driving mechanism comprises a support ring (9) fixedly connected to a side wall of the drive shaft (3), a plurality of sliding sleeves arranged at equal intervals are fixedly connected to the side wall of the support ring (9) in the circumferential direction, a support rod (34) is fixedly connected to the inner bottom of each sliding sleeve, a drive plate (10) is slidably sleeved on the side wall of each support rod (34), a buffer spring is elastically connected between the inner side wall of the drive plate (10) and the support ring (9), two symmetrically arranged contact rollers are rotatably connected to the outer side wall of the drive plate (10), the contact rollers are rotatably connected with the rotating inner tube (5), a limit groove (16) is formed in the side wall of the drive shaft (3), a plurality of circumferentially arranged limit racks (17) are fixedly connected to the side wall of the limit groove (16), sliding connection has the activity lantern ring (18) in spacing groove (16), it is a plurality of to establish in activity lantern ring (18) slip cap spacing rack (17), fixedly connected with fixed collar (19) on the lateral wall of drive shaft (3), gag lever post (20) that a plurality of circumference of fixedly connected with set up in the activity lantern ring (18) are a plurality of gag lever post (20) run through the fixed collar of sliding connection (19) and terminal fixed connection support ring (9) in right side, elastic connection has a plurality of reset spring between the activity lantern ring (18) and the fixed collar (19), reset spring overlaps and establishes on gag lever post (20).

5. A bidirectional axial flow pump according to claim 4, characterized in that the pressure increasing means comprise two symmetrically arranged pressure increasing ducts (26) fixedly connected to the lower side wall of the axial flow duct (1), a pressurizing piston (28) is connected in the pressurizing pipe (26) in a sliding way, the upper end surface of the pressurizing piston (28) is rotatably connected with a rotating rod (29), the upper end surface of the rotating rod (29) is rotatably connected with a transition rod, a plurality of adjusting grooves (31) are circumferentially arranged on the side wall of the axial flow pipe (1), an adjusting block (33) is connected in the adjusting groove (31) in a sliding manner, the side wall of the adjusting block (33) penetrates through the adjusting groove (31) and is fixedly connected with a moving plate (30), a driving cylinder (32) is arranged below the moving plate (30), and the telescopic column of the driving cylinder (32) is fixedly connected with the lower end surface of the moving plate (30).

6. The bidirectional axial flow pump according to claim 5, wherein the transmission mechanism comprises a driving wheel (35) fixedly connected to a side wall of the driving shaft (3), the axial flow pipe (1) is slidably connected with two symmetrically arranged reciprocating rods (23), a driving ring (25) is fixedly connected between the two reciprocating rods (23), racks are fixedly connected to an inner side wall of the driving ring (25) and an outer side wall of the driving wheel (35), connecting frames (27) are fixedly connected to left and right end sides of the driving ring (25), the connecting frames (27) are rotatably connected with transition rods, the upper end surface of the axial flow pipe (1) is fixedly and communicated with a sealing pipe (21), an extrusion pipe (22) is fixedly connected to the upper end surface of the sealing pipe (21), the upper end of the reciprocating rod (23) is slidably connected in the extrusion pipe (22) in a penetrating manner, and an extrusion piston (24) is fixedly connected to a side wall of the reciprocating rod, the extrusion pipe (22) is communicated with the pipe shaft flow pipe (1) through a connecting pipe.