CN110397603B

CN110397603B - Water pump

Info

Publication number: CN110397603B
Application number: CN201910714102.2A
Authority: CN
Inventors: 邵玉刚
Original assignee: Shaoxing Keqiao Chunsheng Water Technology Co ltd
Current assignee: Shaoxing Keqiao Chunsheng Water Technology Co.,Ltd.
Priority date: 2019-08-03
Filing date: 2019-08-03
Publication date: 2020-09-15
Anticipated expiration: 2039-08-03
Also published as: CN110397603A

Abstract

The invention relates to a water pump, which comprises a double-output-shaft motor; the bell-shaped cover is fixedly connected with the double-output-shaft motor; a coupling; the pump body is provided with a water inlet and a water outlet, and is rotationally connected with an impeller; an end cap; a pump shaft; a left link and a right link; a left slider and a right slider; a control valve core; a first spring; a reciprocating pump control assembly. The water pump disclosed by the invention has a simple and reasonable structure, can realize automatic water filling, can complete the switching of the working states of the impeller and the reciprocating pump assembly, does not need human intervention, greatly reduces the labor capacity, and is very convenient.

Description

Water pump

Technical Field

The invention belongs to the technical field of water pumps, and particularly relates to a water pump with an automatic water filling function.

Background

The water pump is a high-market-sales-rate field in electromechanical products, and has no need of using pumps in various walks, industries and rural families without tap water, and the water pump has no prominent reform in twenty years and belongs to the most popular product in the electromechanical industry. Common products of industrial pumps are mostly of volute types, horizontal type machine plate seats, heavy, occupied positions, limited installation and complex use, the original horizontal and vertical type multi-stage pump is low in fluid rate of pig iron casting manufacturing, large in size and consumable, low in energy efficiency, free of distortion protection devices, free of water return valve equipment, and capable of normally working by filling liquid vacuum for multiple times in use, starting up the pump to wait for steam-water separation and continuously filling water vacuum, and after the pump is stopped, the pump cannot normally work and fill water again, so that a lot of time is consumed in the use process, and the pump is complex. The prior art water pump fills water into a pump shell before pumping water, and air in the pump shell is emptied, so that an impeller of the water pump rotates to drive liquid to generate centrifugal force to enable a water inlet of the pump to generate negative pressure to suck the liquid, and a water outlet of the pump to generate positive pressure to discharge the liquid.

Disclosure of Invention

The invention aims to solve the technical problem of providing a water pump which is reasonable in structure, reliable in use and has an automatic water filling function aiming at the current situation of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: a water pump, characterized by: the double-output-shaft motor is provided with a left rotating shaft and a right rotating shaft; the left end of the bell-shaped cover is provided with a mounting hole with a left opening; the shaft coupling is arranged in the mounting cavity, is connected with the left rotating shaft through a flat key, can slide along the axial direction of the left rotating shaft, is provided with an annular clamping groove on the circumferential side wall in the middle of the shaft coupling, and is provided with a left connecting tooth at the left end; the pump body is provided with a water inlet and a water outlet, and the pump body is rotationally connected with an impeller; the end cover is fixedly arranged at the right end of the pump body, and the right end of the end cover is fixedly connected with the left end of the bell-shaped cover; the left end of the pump shaft is positioned in the pump body and is fixedly connected with the impeller to drive the impeller to rotate, the right end of the pump shaft penetrates through the end cover rightwards and then extends into the mounting cavity, and the right end of the pump shaft is provided with right connecting teeth which can be meshed with the left connecting teeth; the left connecting rod and the right connecting rod are symmetrically arranged in the mounting cavity, the middle part of the left connecting rod is hinged with the left end of the connecting block, the middle part of the right connecting rod is hinged with the right end of the connecting block, a left sliding groove is formed in the upper part of the left connecting rod, and a right sliding groove is formed in the upper part of the right connecting rod; the left sliding block is rotatably connected to the lower end of the left connecting rod and extends into the clamping groove, and the right sliding block is rotatably connected to the lower end of the right connecting rod and extends into the clamping groove; the left end of the control valve core is arranged in the end cover in a sliding mode and extends into the pump body, the right end of the control valve core penetrates through the mounting hole and then extends into the mounting cavity to the right, a left bulge and a right bulge are arranged on the right end of the control valve core in the radial direction, the left bulge is inserted into the left sliding groove, and the right bulge is inserted into the right sliding groove; the first spring is arranged in the mounting hole, one end of the first spring is abutted against the bottom surface of the mounting hole, and the other end of the first spring is abutted against the control valve core to enable the control valve core to keep a trend of moving leftwards, so that the left connecting rod drives the left sliding block and the right connecting rod drives the right sliding block to push the coupling to move rightwards to be separated from the pump shaft; the reciprocating pump assembly is arranged on the right side of the double-output-shaft motor, a water suction hole and a water outlet hole are formed in the reciprocating pump assembly, and the water outlet hole is communicated with the water outlet; when the pressure in the water outlet is lower, the double-output-shaft motor drives the reciprocating pump assembly to work through the right rotating shaft, water in the water suction hole is conveyed into the water outlet through the water outlet hole, meanwhile, the coupler moves rightwards under the action of the first spring to be separated from the pump shaft, and the impeller does not rotate; when the pressure in the water outlet rises to a certain pressure, the reciprocating pump assembly automatically stops working, meanwhile, the pressure in the water outlet pushes the control valve core to move rightwards, the coupling is pushed to move leftwards through the left connecting rod and the right connecting rod to be in contact with the pump shaft, the left connecting tooth is meshed with the right connecting tooth, and then the impeller is driven to start rotating.

Preferably, the reciprocating pump assembly comprises a shell, a plunger, a positioning column, a cover plate, a second spring and a reciprocating control wheel, wherein a plunger hole, a water suction hole and a water outlet hole which are opened leftwards are arranged in the shell, the cover plate is fixedly connected to the left end of the shell, the left end of the cover plate is fixedly connected with a double-output-shaft motor, a rotation stopping convex column is eccentrically arranged on the cover plate, a right rotating shaft penetrates through the cover plate and then extends into the plunger hole, the plunger is arranged in the plunger hole in a left-right sliding manner, a plunger blind hole which is opened leftwards and a rotation stopping hole which penetrates along the axial direction are arranged in the plunger, the rotation stopping convex column extends rightwards after penetrating through the rotation stopping hole, an annular communication groove is arranged on the circumferential side wall of the plunger and is always communicated with the water outlet hole, a positioning column hole which is communicated with the plunger blind hole and is provided with a stepped shape along the radial, the reciprocating control wheel is rotatably connected in the plunger blind hole, the left end of the reciprocating control wheel is fixedly connected with the right rotating shaft, a curve groove is formed in the circumferential side face of the reciprocating control wheel, the positioning column can be arranged in the positioning column hole in an up-and-down sliding mode, the positioning column comprises a main body section and a reducing section which are sequentially connected, the main body section is in sliding fit in the large aperture of the positioning column hole, the reducing section is in sliding fit in the small aperture of the positioning hole and extends downwards into the curve groove to drive the plunger to reciprocate along the plunger hole, and the second spring is arranged in the positioning column hole to force the positioning column to move downwards.

Preferably, the plugging assembly comprises a lower cover, a plugging valve core and a second spring, the lower cover is fixedly connected to the valve body and used for plugging a lower opening of the inlet flow channel, a guide post is arranged at the upper end of the lower cover, the lower end of the plugging valve core is sleeved on the guide post, the upper end face of the plugging valve core abuts against the lower end face of the valve rod, the plugging valve core moves upwards to plug the stopping hole, the second spring is arranged between the lower cover and the plugging valve core, the lower end of the second spring abuts against the lower cover, and the upper end of the second spring abuts against the plugging valve core, so that the plugging valve core keeps moving upwards. Preferably, a sealing ring is arranged on the circumferential side wall of the valve rod.

Preferably, a water outlet one-way valve is arranged in the water outlet hole, and a water inlet one-way valve is arranged in the water suction hole.

Preferably, the water outlet hole is communicated with the water outlet through a communicating pipe.

Preferably, when the pressure in the water outlet hole is lower, the pressure in the water outlet hole acts on the positioning column and is not enough to overcome the acting force of the second spring, the positioning column is downwards inserted into the curved groove, the reciprocating control wheel is driven to rotate through the right rotating shaft, and then the curved groove and the positioning column are matched to drive the plunger to reciprocate in the plunger hole; when the pressure in the water outlet hole rises, the pressure in the water outlet hole pushes the positioning column to move upwards against the acting force of the second spring, the positioning column is separated from the curve groove, and the plunger stops reciprocating.

Compared with the prior art, the invention has the advantages that: the double-output-shaft motor drives the reciprocating pump assembly to work and fill water into the water outlet when the pressure in the water outlet is low, namely air is contained and the water needs to be filled, at the moment, the shaft coupler moves rightwards under the action of the first spring to be separated from the pump shaft, and the impeller does not rotate; when the pressure in the water outlet rises to a certain pressure, the reciprocating pump assembly automatically stops working, meanwhile, the pressure in the water outlet pushes the control valve core to move rightwards, the coupling is pushed to move leftwards through the left connecting rod and the right connecting rod to be contacted with the pump shaft, the left connecting tooth is meshed with the right connecting tooth, and then the impeller is driven to start rotating to start normal work. When the automatic water filling device is used, automatic water filling can be realized only by connecting external pipelines, the switching of the working states of the impeller and the reciprocating pump assembly is completed, manual intervention is not needed, the labor capacity is greatly reduced, and the automatic water filling device is very convenient.

Drawings

FIG. 1 is a schematic three-dimensional structure of an embodiment of the present invention;

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

FIGS. 3-4 are schematic views of a partially assembled structure in an embodiment of the present invention;

FIG. 5 is a schematic three-dimensional structure of a plunger according to an embodiment of the present invention;

FIG. 6 is a schematic three-dimensional structure of a pump shaft according to an embodiment of the present invention;

FIG. 7 is a schematic three-dimensional structure of a reciprocating control wheel according to an embodiment of the present invention;

FIG. 8 is a schematic three-dimensional view of a coupling according to an embodiment of the present invention;

FIG. 9 is a schematic three-dimensional structure diagram of a left link according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1-9, is a preferred embodiment of the present invention.

A water pump comprises

A double-output-shaft motor 1, wherein the double-output-shaft motor 1 is provided with a left rotating shaft 1a and a right rotating shaft 1 b.

The bell jar 4, bell jar 4 fixed mounting are in the left side of two play axle motors 1, are equipped with installation cavity 401 in the bell jar 4, and left pivot 1a stretches into in installation cavity 401 to the left, and the installation cavity 401 is equipped with connecting block 41 above left pivot 1a, and the left end of bell jar 4 still is equipped with opening mounting hole 42 to the left.

The shaft coupling 6 is arranged in the mounting cavity 401, the shaft coupling 6 is connected with the left rotating shaft 1a through a flat key, the shaft coupling 6 can slide along the axial direction of the left rotating shaft 1a, an annular clamping groove 61 is formed in the circumferential side wall of the middle of the shaft coupling 6, and a left connecting tooth 62 is arranged at the left end of the shaft coupling 6.

The pump body 3 is provided with a water inlet 301 and a water outlet 302, and the pump body 3 is rotatably connected with an impeller 31.

The end cover 7 is fixedly arranged at the right end of the pump body 3, and the right end of the end cover 7 is fixedly connected with the left end of the bell-shaped cover 4;

the left end of the pump shaft 5 is located in the pump body 3 and is fixedly connected with the impeller 31 to drive the impeller 31 to rotate, the right end of the pump shaft 5 penetrates through the end cover 7 rightwards and then extends into the installation cavity 401, and the right end of the pump shaft 5 is provided with a right connecting tooth 51 which can be meshed with the left connecting tooth 62.

The left connecting rod 9a and the right connecting rod 9b are symmetrically arranged in the mounting cavity 401, the middle part of the left connecting rod 9a is hinged with the left end of the connecting block 41, the middle part of the right connecting rod 9b is hinged with the right end of the connecting block 41, the upper part of the left connecting rod 9a is provided with a left sliding groove 9a1, and the upper part of the right connecting rod 9b is provided with a right sliding groove 9b 1.

The left slider 14a and the right slider 14b, the left slider 14a is rotatable to be connected at the lower extreme of left connecting rod 9a and stretches into the joint groove 61, and the right slider 14b is rotatable to be connected at the lower extreme of right connecting rod 9b and stretches into the joint groove 61.

And the left end of the control valve core 8 is arranged in the end cover 7 in a sliding manner and extends into the pump body 3, the right end of the control valve core 8 penetrates through the mounting hole 42 and then extends into the mounting cavity 401 to the right, the right end of the control valve core 8 is provided with a left bulge 81 and a right bulge 82 along the radial direction, the left bulge 81 is inserted into the left sliding groove 9a1, and the right bulge 82 is inserted into the right sliding groove 9b 1.

The first spring 15a is arranged in the mounting hole 42, one end of the first spring 15a abuts against the bottom surface of the mounting hole 42, and the other end of the first spring 15a abuts against the control valve core 8 to keep the control valve core 8 moving leftwards, so that the left connecting rod 9a drives the left sliding block 14a and the right connecting rod 9b drives the right sliding block 14b to push the coupling 6 to move rightwards to be separated from the contact with the pump shaft 5.

The reciprocating pump assembly comprises a shell 2, a plunger 11, a positioning column 12, a cover plate 13, a second spring 15b and a reciprocating control wheel 10, wherein a plunger hole with a left opening, a water suction hole 21 and a water outlet hole 22 are formed in the shell 2, the water outlet hole 22 is communicated with a water outlet 302 through a communicating pipe 17, a water outlet one-way valve 16b is arranged in the water outlet hole 22, and a water inlet one-way valve 16a is arranged in the water suction hole 21. The cover plate 13 is fixedly connected to the left end of the shell 2, the left end of the cover plate 13 is fixedly connected with the double-output-shaft motor 1, the rotation stopping convex column 131 is eccentrically arranged on the cover plate 13, and the right rotating shaft 1b penetrates through the cover plate 13 and then extends into the plunger hole. The plunger 11 can be arranged in the plunger hole in a left-right sliding mode, a plunger blind hole 111 with a left opening and a rotation stopping hole 114 penetrating along the axial direction are arranged in the plunger 11, a rotation stopping convex column 131 penetrates through the rotation stopping hole 114 and then extends out to the right, an annular communicating groove 115 is arranged on the circumferential side wall of the plunger 11, the communicating groove 115 is always communicated with the water outlet hole 22, a stepped positioning column hole communicated with the plunger blind hole 111 is arranged at the left end of the plunger 11 along the radial direction, and a communicating hole 112 used for communicating the communicating groove 115 with the large-aperture bottom of the positioning column hole is further arranged in the plunger 11. The reciprocating control wheel 10 is rotatably connected in the plunger blind hole, the left end of the reciprocating control wheel 10 is fixedly connected with the right rotating shaft 1b, a curve groove 10a is formed in the circumferential side face of the reciprocating control wheel 10, the positioning column 12 can be arranged in the positioning column hole in an up-and-down sliding mode, the positioning column 12 comprises a main body section and a reducing section which are sequentially connected, the main body section is in sliding fit in the large aperture of the positioning column hole, the reducing section is in sliding fit in the small aperture of the positioning hole and extends downwards into the curve groove 10a to drive the plunger 11 to reciprocate along the plunger hole, and the second spring 15b is arranged in the positioning column hole and used for forcing the positioning column 12 to move downwards.

The working principle and the process of the invention are as follows:

when in use, the water inlet 301 and the water suction hole 21 are connected with a water source, and the water outlet 302 is connected with a water using device.

Starting the double-output-shaft motor 1, starting the left rotating shaft 1a and the right rotating shaft 1b to rotate, when the pressure in the water outlet 302 is lower, the pressure in the water outlet 22 acts on the positioning column 12 and is not enough to overcome the acting force of the second spring 15b, the positioning column 12 is downwards inserted into the curve groove 10a, the reciprocating control wheel 10 is driven to rotate through the right rotating shaft 1b, the curve groove 10a is further matched with the positioning column 12 to drive the plunger 11 to reciprocate in the plunger hole, water in the water suction hole 21 is conveyed into the water outlet 302 through the water outlet 22, meanwhile, the shaft connector 6 moves rightwards under the acting force of the first spring 15a and is separated from the pump shaft 5, and the impeller 31 does not rotate; when the pressure in the water outlet 302 rises to a certain pressure, water filling is finished, the pressure in the water outlet 22 pushes the positioning column 12 to move upwards against the acting force of the second spring 15b, the positioning column 12 is separated from the curve groove 10a, the plunger 11 stops reciprocating movement, meanwhile, the pressure in the water outlet 302 pushes the control valve core 8 to move rightwards, the coupling 6 is pushed to move leftwards through the left connecting rod 9a and the right connecting rod 9b to be in contact with the pump shaft 5, the left connecting tooth 62 is meshed with the right connecting tooth 51 to drive the impeller 31 to rotate, and the impeller 31 conveys the water in the water inlet 301 to the water outlet 302.

Claims

1. A water pump, characterized by: comprises that

The double-output-shaft motor (1), wherein the double-output-shaft motor (1) is provided with a left rotating shaft (1a) and a right rotating shaft (1 b);

the double-output-shaft motor comprises a bell-shaped cover (4), wherein the bell-shaped cover (4) is fixedly installed on the left side of a double-output-shaft motor (1), an installation cavity (401) is formed in the bell-shaped cover (4), a left rotating shaft (1a) extends into the installation cavity (401) leftwards, a connecting block (41) is arranged above the left rotating shaft (1a) in the installation cavity (401), and the left end of the bell-shaped cover (4) is also provided with an installation hole (42) with a left opening;

the shaft coupling (6) is arranged in the mounting cavity (401), the shaft coupling (6) is connected with the left rotating shaft (1a) through a flat key, the shaft coupling (6) can slide along the axial direction of the left rotating shaft (1a), an annular clamping groove (61) is formed in the circumferential side wall of the middle of the shaft coupling (6), and a left connecting tooth (62) is arranged at the left end of the shaft coupling (6);

the pump body (3), the pump body (3) is provided with a water inlet (301) and a water outlet (302), and the pump body (3) is rotatably connected with an impeller (31);

the end cover (7), the end cover (7) is fixedly installed at the right end of the pump body (3), and the right end of the end cover (7) is fixedly connected with the left end of the bell-shaped cover (4);

the left end of the pump shaft (5) is positioned in the pump body (3) and is fixedly connected with the impeller (31) to drive the impeller (31) to rotate, the right end of the pump shaft (5) penetrates through the end cover (7) rightwards and then extends into the mounting cavity (401), and the right end of the pump shaft (5) is provided with a right connecting tooth (51) which can be meshed with the left connecting tooth (62);

the left connecting rod (9a) and the right connecting rod (9b) are symmetrically arranged in the mounting cavity (401), the middle of the left connecting rod (9a) is hinged with the left end of the connecting block (41), the middle of the right connecting rod (9b) is hinged with the right end of the connecting block (41), a left sliding groove (9a1) is formed in the upper portion of the left connecting rod (9a), and a right sliding groove (9b1) is formed in the upper portion of the right connecting rod (9 b);

the left sliding block (14a) and the right sliding block (14b), the left sliding block (14a) is rotatably connected to the lower end of the left connecting rod (9a) and extends into the clamping groove (61), and the right sliding block (14b) is rotatably connected to the lower end of the right connecting rod (9b) and extends into the clamping groove (61);

the left end of the control valve core (8) is arranged in the end cover (7) in a sliding mode and extends into the pump body (3), the right end of the control valve core (8) penetrates through the mounting hole (42) and then extends into the mounting cavity (401) to the right, a left bulge (81) and a right bulge (82) are arranged at the right end of the control valve core (8) in the radial direction, the left bulge (81) is inserted into the left sliding groove (9a1), and the right bulge (82) is inserted into the right sliding groove (9b 1);

the first spring (15a) is arranged in the mounting hole (42), one end of the first spring (15a) abuts against the bottom surface of the mounting hole (42), the other end of the first spring (15a) abuts against the control valve core (8) to enable the control valve core (8) to keep a trend of moving leftwards, so that the left connecting rod (9a) drives the left sliding block (14a) and the right connecting rod (9b) to drive the right sliding block (14b) to push the shaft coupling (6) to move rightwards to be separated from the pump shaft (5);

the reciprocating pump assembly is arranged on the right side of the double-output-shaft motor (1), a water suction hole (21) and a water outlet hole (22) are formed in the reciprocating pump assembly, and the water outlet hole (22) is communicated with the water outlet (302);

when the pressure in the water outlet (302) is low, the double-output-shaft motor (1) drives the reciprocating pump assembly to work through the right rotating shaft (1b), water in the water suction hole (21) is conveyed into the water outlet (302) through the water outlet hole (22), meanwhile, the shaft connector (6) moves rightwards under the action of the first spring (15a) to be separated from the pump shaft (5), and the impeller (31) does not rotate; when the pressure in the water outlet (302) rises to a certain pressure, the reciprocating pump assembly automatically stops working, meanwhile, the pressure in the water outlet (302) pushes the control valve core (8) to move rightwards, the coupling (6) is pushed to move leftwards through the left connecting rod (9a) and the right connecting rod (9b) to be contacted with the pump shaft (5), and the left connecting tooth (62) is meshed with the right connecting tooth (51), so that the impeller (31) is driven to rotate.

2. The water pump of claim 1, wherein: the reciprocating pump assembly comprises a shell (2), a plunger (11), a positioning column (12), a cover plate (13), a second spring (15b) and a reciprocating control wheel (10), wherein a plunger hole with a left opening, a water suction hole (21) and a water outlet hole (22) are arranged in the shell (2), the cover plate (13) is fixedly connected to the left end of the shell (2), the left end of the cover plate (13) is fixedly connected with a double-shaft motor (1), a rotation stopping convex column (131) is eccentrically arranged on the cover plate (13), a right rotating shaft (1b) penetrates through the cover plate (13) and then extends into the plunger hole, the plunger (11) can slide left and right in the plunger hole, an open plunger blind hole (111) with a left opening and a rotation stopping hole (114) which axially penetrates are arranged in the plunger (11), the rotation stopping convex column (131) extends out after penetrating through the rotation stopping hole (114), an annular communicating groove (115) is arranged on the circumferential side wall of the plunger (11), the communicating groove (115) is communicated with the water outlet hole (22) all the time, the left end of the plunger (11) is provided with a positioning column hole which is communicated with the plunger blind hole (111) in a step shape along the radial direction, a communicating hole (112) which is used for communicating the communicating groove (115) with the large-aperture bottom of the positioning column hole is also arranged in the plunger (11), the reciprocating control wheel (10) is rotatably connected in the plunger blind hole, the left end of the reciprocating control wheel (10) is fixedly connected with the right rotating shaft (1b), the circumferential side surface of the reciprocating control wheel (10) is provided with a curved groove (10a), the positioning column (12) is arranged in the positioning column hole in a vertically sliding manner, the positioning column (12) comprises a main body section and a reducing section which are sequentially connected, the main body section is in sliding fit in the large aperture of the positioning column hole, the reducing section is in sliding fit in the small aperture of the positioning hole and extends downwards into the curved groove (10a) to drive the, the second spring (15b) is disposed in the positioning post hole for forcing the positioning post (12) to move downward.

3. The water pump of claim 2, wherein: a water outlet one-way valve (16b) is arranged in the water outlet hole (22), and a water inlet one-way valve (16a) is arranged in the water suction hole (21).

4. The water pump of claim 2, wherein: the water outlet hole (22) is communicated with the water outlet (302) through a communicating pipe (17).

5. The water pump of claim 2, wherein: when the pressure in the water outlet hole (22) is lower, the pressure in the water outlet hole (22) acts on the positioning column (12) and is not enough to overcome the acting force of the second spring (15b), the positioning column (12) is downwards inserted into the curve groove (10a), the reciprocating control wheel (10) is driven to rotate through the right rotating shaft (1b), and then the curve groove (10a) is matched with the positioning column (12) to drive the plunger (11) to reciprocate in the plunger hole; when the pressure in the water outlet hole (22) rises, the pressure in the water outlet hole (22) pushes the positioning column (12) to move upwards against the action force of the second spring (15b), the positioning column (12) is separated from the curve groove (10a), and the plunger (11) stops reciprocating.