CN112483418B

CN112483418B - Self-priming pump

Info

Publication number: CN112483418B
Application number: CN202011261999.7A
Authority: CN
Inventors: 王永康
Original assignee: Zhejiang Donghang Fire Pump Co ltd
Current assignee: Zhejiang Donghang Fire Pump Co ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2022-04-19
Anticipated expiration: 2040-11-12
Also published as: CN112483418A

Abstract

The application discloses a self-priming pump, which relates to the technical field of water pumps and comprises a base, wherein a pump body is arranged on the base, a pump cavity is arranged in the pump body, a water inlet, a water outlet and a water replenishing port which are communicated with the pump cavity are also arranged on the pump body, the pump body is rotationally connected with an impeller, the impeller is positioned in the pump cavity, a driving motor for driving the impeller to rotate is also arranged on the base, a water storage tank is also arranged on the base, and the capacity of the water storage tank is more than twice of the capacity of the pump cavity; the height of the bottom of the water storage tank is higher than that of the water replenishing port, the bottom of the water storage tank is communicated with a guide pipe, one end of the guide pipe, far away from the water storage tank, is communicated to the water replenishing port, and the guide pipe is also connected with a control valve which is used for controlling the on-off condition of the guide pipe. Through setting up water storage tank, pipe and control valve, reduced the frequency that operating personnel took water to mend for self priming pump's use is more convenient.

Description

Self-priming pump

Technical Field

The application relates to the technical field of water pumps, and more particularly relates to a self-priming pump.

Background

The self-priming pump belongs to a centrifugal pump, and drives an impeller to rotate through a motor, and the impeller drives water to flow through centrifugal force to work. Before the self-sucking pump is operated, a certain amount of water needs to be stored in a pump cavity, and after the pump is started, air and water in a water sucking pipeline are fully mixed under the rotating action of an impeller and are discharged to a gas-water separation chamber. The gas on the upper part of the gas-water separation chamber escapes, the water on the lower part returns to the impeller and is mixed with the residual gas in the suction pipeline again until the gas in the pump and the water inlet pipeline is completely discharged, the self-suction is completed, and the water pump enters a normal working state.

In view of the above-mentioned related technologies, the inventor found that before the self-priming pump is used, a certain amount of water needs to be added into the pump cavity to avoid the condition of idle rotation of the impeller, so that the self-priming pump is troublesome to use and needs to be improved.

Disclosure of Invention

In order to improve the trouble problem of self priming pump use, this application provides a self priming pump.

The application provides a self priming pump adopts following technical scheme:

a self-priming pump comprises a base, wherein a pump body is arranged on the base, a pump cavity is arranged in the pump body, a water inlet, a water outlet and a water replenishing port which are communicated with the pump cavity are also arranged on the pump body, the pump body is rotatably connected with an impeller, the impeller is positioned in the pump cavity, a driving motor for driving the impeller to rotate is also arranged on the base, a water storage tank is also arranged on the base, and the capacity of the water storage tank is more than twice of the pump cavity; the height of the bottom of the water storage tank is higher than that of the water replenishing port, the bottom of the water storage tank is communicated with a guide pipe, one end, far away from the water storage tank, of the guide pipe is communicated to the water replenishing port, and the guide pipe is further connected with a control valve which is used for controlling the on-off condition of the guide pipe.

Through above-mentioned technical scheme, carry out the retaining storage through the water storage box, when needs are to the moisturizing in the pump chamber, make the water in the water storage box along the pipe mend the pump chamber in, once can supply the moisturizing many times of self priming pump behind the moisturizing in to the water storage box through opening the control valve. Compare before self priming pump uses at every turn, the operation of back along the moisturizing mouth mending of operating personnel after beating water has reduced the frequency that operating personnel beaten water and mended for self priming pump's use is more convenient.

Optionally, the upper end of the water storage tank is communicated with an air guide hole, a water inlet pipe is arranged on the side wall of the water storage tank, the water inlet pipe is communicated with the position, close to the top, of the water storage tank, one end, far away from the water storage tank, of the water inlet pipe is communicated with a water outlet, and an adjusting piece for controlling the on-off condition of the water inlet pipe is arranged on the water inlet pipe.

Through above-mentioned technical scheme, make the inlet tube switch on through the regulating part, when the water pump in the use, water pump delivery port exhaust water can be along the inlet tube in the water storage box is mended, and the gas guide hole can in time be with gas outgoing in the water storage box this moment to in the balanced water storage box with external pressure. When the adjusting piece makes the inlet pipe break, the water discharged from the outlet can not enter the water storage tank. Through setting up inlet tube, air guide hole and regulating part for the water source in the water storage box supplyes the drainage that can pass through the water pump and realize, has reduced operating personnel and has beaten the trouble of water to the water storage box moisturizing, makes the moisturizing operation of water storage box more convenient.

Optionally, the adjusting member is a ball valve.

Through above-mentioned technical scheme, the ball valve is through twisting the regulation for the regulation of regulating part is comparatively convenient.

Optionally, a sliding channel is arranged at the lower end of the water storage tank and communicated with the inside of the water storage tank; the adjusting piece is arranged at one end of the water inlet pipe extending into the water storage tank and comprises a closing plate, an adjusting plate and a return spring, and the closing plate is connected into the water storage tank in a sliding mode along the vertical direction; the adjusting plate is connected to the closing plate through a fixing rod, the adjusting plate is connected in the sliding channel in a sliding mode along the vertical direction and divides the sliding channel into an upper area and a lower area, and the reset spring is located below the adjusting plate so that the adjusting plate has the tendency of moving upwards; when the water level in the water storage tank rises to enable the return spring to be compressed, the closing plate is closed at the port, communicated with the water inlet pipe, in the water storage tank.

Through the technical scheme, when the water level in the water storage tank is close to the water inlet port of the water inlet pipe, the water pressure enables the adjusting plate to overcome the pressure of the reset spring and move downwards to enable the closing plate to cover the water inlet pipe and communicate with the port in the water storage tank, and at the moment, the water inlet pipe is disconnected with the water storage tank. After the water level in the water storage tank drops, the pressure of the upper end face of the adjusting plate is reduced due to the drop of the water level, the closing plate is moved upwards due to the elasticity of the reset spring, the closing plate is shifted to the port of the water inlet pipe, the water inlet pipe is communicated with the water storage tank, and water discharged from the water outlet can enter the water storage tank to be stored and supplemented. The closing plate, the adjusting plate and the reset spring are arranged, the on-off state of the water inlet pipe is controlled through the water level in the water storage tank, and the trouble of manual operation and adjustment of operators is reduced.

Optionally, the regulating plate is a ferromagnetic structure, a permanent magnet is fixed in the sliding channel and located below the regulating plate, and after the reset spring is compressed, the permanent magnet is adsorbed on the regulating plate.

Through above-mentioned technical scheme, set up the permanent magnet, when the water level descends in the water storage box, regulating plate up end pressurized, its pressure includes water pressure and the gravity of closing plate. When the pressure of the upper end face of the adjusting plate is smaller than the elastic force of the return spring, the adjusting plate cannot move upwards due to the attraction force of the permanent magnet until the elastic force of the return spring is larger than the sum of the pressure of the upper end face of the adjusting plate and the attraction force of the permanent magnet, the adjusting plate moves upwards, the elastic force of the return spring is changed linearly due to the sudden drop phenomenon after the permanent magnet attraction force is separated, the adjusting plate directly moves upwards for a larger distance, and the closing plate is staggered with the port of the water inlet pipe. At the moment, the water replenishing operation is started, water at the water outlet is replenished into the water storage tank through the guide pipe until the adjusting plate moves downwards to be adsorbed by the permanent magnet and the port of the water inlet pipe is covered by the closing plate. Through setting up the permanent magnet, reduced the regulating plate and frequently removed the condition of carrying out the moisturizing for use more lastingly.

Optionally, an upper limit ring and a lower limit ring are arranged in the sliding channel, the upper limit ring is located above the adjusting plate and used for the adjusting plate to move upwards and then tightly abut against the adjusting plate, and the lower limit ring is located below the adjusting plate and used for the adjusting plate to move downwards and then tightly abut against the adjusting plate.

Through above-mentioned technical scheme, carry out spacingly through last spacing ring and spacing ring down to the removal of adjusting plate for the removal of adjusting plate is adjusted more stably.

Optionally, the opposite end surfaces of the upper limit ring and the lower limit ring are provided with rubber rings.

Through above-mentioned technical scheme, when the regulating plate when sliding, the leakproofness of regulating plate and slip passageway is difficult to ensure. The rubber ring is arranged, when the return spring is compressed and the adjusting plate is abutted against the permanent magnet, the adjusting plate abuts against the rubber ring on the lower limiting ring to strengthen sealing. When the water level earlier the back, when the regulating plate moved up, the closing plate staggers with the inlet tube port under reset spring's effect, and the regulating plate is direct to be supported tightly and is strengthened sealedly on the rubber ring of last spacing ring this moment, through setting up the rubber ring for the sealed effect of passageway that slides is better.

Optionally, the reservoir is transparent or translucent.

Through the technical scheme, the state of the water level in the water storage tank is conveniently observed, so that the whole use is more convenient.

Optionally, the water storage tank is provided with a plurality of scales, and the plurality of scales are distributed along the vertical direction.

Through above-mentioned technical scheme, set up a plurality of scales, confirm the use amount of retaining through the scale, realize the operation of quantitative moisturizing to the pump chamber for the moisturizing is more convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

(1) by arranging the water storage tank, the guide pipe and the control valve, the frequency of water supplementing of operators is reduced, so that the self-priming pump is more convenient to use;

(2) the water replenishing operation of the water storage tank is more convenient by arranging the water inlet pipe, the air guide hole and the adjusting part;

(3) through setting up closing plate, regulating plate and reset spring, realize the control of inlet tube break-make state through the water level in the water storage box, reduced the trouble that operating personnel manual operation adjusted.

Drawings

FIG. 1 is an overall schematic view of an embodiment;

FIG. 2 is a schematic partial cross-sectional view of an embodiment;

FIG. 3 is a schematic view of a closed state of the regulating member of the embodiment;

fig. 4 is a schematic view of an opened state of the regulating member of the embodiment.

Reference numerals: 1. a base; 2. a pump body; 21. a water inlet; 22. a water outlet; 23. a water replenishing port; 3. a drive motor; 4. a water storage tank; 5. calibration; 6. an air vent; 7. a support leg; 8. a conduit; 9. a control valve; 10. a three-way joint; 11. a water inlet pipe; 12. an adjustment member; 121. a closing plate; 122. an adjusting plate; 123. a return spring; 13. a guide strip; 131. a guide groove; 14. a slipping channel; 15. fixing the rod; 16. a support frame; 17. an upper limiting ring; 18. a lower limit ring; 19. a rubber ring; 20. and a permanent magnet.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses self priming pump, as shown in fig. 1, including base 1, be fixed with the pump body 2 on the base 1, be equipped with pump chamber (not shown) in the pump body 2. The pump body 2 is also provided with a water inlet 21, a water outlet 22 and a water replenishing port 23, and the water inlet 21, the water outlet 22 and the water replenishing port 23 are all communicated with the pump cavity. The pump body 2 is also rotatably connected with an impeller (not shown), the impeller is positioned in the pump cavity, the base 1 is also fixedly provided with a driving motor 3, an output shaft of the driving motor 3 is connected with the impeller, and an output shaft of the driving motor 3 rotates to drive the impeller to rotate to pump water.

As shown in fig. 1, a water storage tank 4 is fixed on the base 1, and the capacity of the water storage tank 4 is more than twice of the capacity of the pump cavity. The reservoir 4 is typically a plastic tank, transparent or translucent. The outer side wall of the water storage tank 4 is provided with a plurality of scales 5, and the scales 5 are distributed along the vertical direction and are used for displaying the water amount in the water storage tank 4.

The upper end of the water storage tank 4 is also communicated with an air guide hole 6, and a filter screen is usually arranged in the air guide hole 6, so that foreign matters are reduced from entering the water storage tank 4. The lower end face of the water storage tank 4 is fixedly provided with a plurality of support legs 7, the lower ends of the support legs 7 are fixed on the base 1, and the water storage tank 4 is elevated through the support legs 7, so that the bottom of the water storage tank 4 is higher than the water replenishing port 23. The bottom of the water storage tank 4 is communicated with a conduit 8, and one end of the high pipe, which is far away from the water storage tank 4, is communicated with a water replenishing port 23. The water storage tank 4 is communicated with the pump cavity through the connection of the conduit 8, so that the water in the water storage tank 4 can be supplemented into the pump cavity through the water supplementing opening 23. The conduit 8 is also connected with a control valve 9, and the control valve 9 is a ball valve. When the control valve 9 is in the open state, the reservoir 4 and the pump chamber are in the communicating state, and when the control valve 9 is in the closed state, the reservoir 4 and the pump chamber are in the disconnecting state.

As shown in fig. 1, a three-way joint 10 is connected to a water outlet 22 of the pump body 2, one end of the three-way joint 10 is used for being connected to a water pipe for draining water, the other end of the three-way joint 10 is connected to a water inlet pipe 11, one end of the water inlet pipe 11, which is far away from the three-way joint 10, is communicated to the water storage tank 4, the water inlet pipe 11 penetrates into the water storage tank 4 from the side wall of the water storage tank 4, and the water inlet pipe 11 is communicated to the position, close to the top, of the water storage tank 4.

As shown in fig. 2, the water inlet pipe 11 is further provided with an adjusting member 12, and the adjusting member 12 is used for controlling the on-off condition of the water inlet pipe 11.

As shown in fig. 2 and 3, the adjusting member 12 is disposed at one end of the inlet pipe 11 extending into the water storage tank 4, and the adjusting member 12 includes a closing plate 121, an adjusting plate 122 and a return spring 123. For the installation, be fixed with two gibs 13 at water storage tank 4 inner wall, gib 13 extends along vertical direction, and two gibs 13 distribute to be located the both sides that inlet tube 11 is located water storage tank 4 internal port, and guide way 131 has been seted up to two gib 13 relative terminal surfaces, and the both ends one-to-one of closing plate 121 imbeds in the guide way 131 and realizes following vertical direction sliding connection in water storage tank 4 along guide way 131.

The lower end of the water storage tank 4 is provided with a sliding channel 14, the cross section of the sliding channel 14 is square, and the sliding channel 14 is positioned below the closing plate 121. The sliding channel 14 is communicated to the water storage tank 4, the sliding channel 14 extends along the vertical direction, and the upper end of the sliding channel 14 has a larger distance from the port of the water inlet pipe 11 extending into the water storage tank 4. The adjusting plate 122 is made of ferromagnetic material, such as iron plate. The adjusting plate 122 is connected in the sliding channel 14 in a sliding manner along the vertical direction, a fixing rod 15 is fixed on the upper end surface of the adjusting plate 122, the upper end of the fixing rod 15 is fixedly connected to the closing plate 121, and the closing plate 121 is driven by the up-and-down movement of the adjusting plate 122 to slide along the guide groove 131 through the fixing rod 15. The adjusting plate 122 divides the slide passage 14 into upper and lower regions, wherein the region above the adjusting plate 122 communicates with the inside of the water storage tank 4.

The lower end face of the water storage tank 4 is fixed with a support frame 16, the support frame 16 is positioned below the sliding channel 14, and the support frame 16 is formed by fixing two plate bodies in a crossed manner. The return spring 123 is located below the adjusting plate 122, one end of the return spring 123 abuts against the lower end surface of the adjusting plate 122, and the other end abuts against the upper end surface of the supporting frame 16, and the return spring 123 makes the adjusting plate 122 have a tendency of moving upward.

An upper limit ring 17 and a lower limit ring 18 are fixed in the sliding channel 14, the upper limit ring 17 is located above the adjusting plate 122, and the lower limit ring 18 is located below the adjusting plate 122. Rubber rings 19 are fixed on the opposite end surfaces of the upper limiting ring 17 and the lower limiting ring 18.

Referring to fig. 3 and 4, when the water level in the water storage tank 4 is high, the pressure at the upper end of the adjusting plate 122 is higher at the moment, so that the return spring 123 is in a compressed state, the adjusting plate 122 is pressed against the upper end surface of the lower limiting ring 18, the rubber ring 19 on the upper end surface of the lower limiting ring 18 is deformed by extrusion to enhance sealing, and at the moment, the closing plate 121 is positioned at a port of the water inlet pipe 11 extending into the water storage tank 4 and blocks the port. When the water level is gradually lowered, the water pressure at the upper end of the adjusting plate 122 is gradually reduced, and the return spring 123 moves the adjusting plate 122 upward, so that the closing plate 121 is gradually staggered with the port of the water pipe 11 following the upward movement. When the water level drops to a state slightly higher than the upper end of the sliding channel 14, the return spring 123 presses the adjusting plate 122 against the rubber ring 19 on the lower end face of the upper limit ring 17, and at this time, the closing plate 121 is completely staggered with the port of the water inlet pipe 11.

Referring to fig. 3, in actual use, in the process that the adjusting plate 122 gradually moves upwards, water in the water storage tank 4 seeps out from the sliding channel 14, in order to further improve the situation, a permanent magnet 20 is fixed on the upper end surface of the support frame 16, the permanent magnet 20 is columnar and located in the sliding channel 14, and when the return spring 123 is compressed and the adjusting plate 122 is pressed against the rubber ring 19 of the lower limiting ring 18, the permanent magnet 20 is adsorbed on the lower end surface of the adjusting plate 122 and further fixed to the adjusting plate 122.

Because the water inlet operation of inlet tube 11, based on the drainage of water pump delivery port 22, as long as closing plate 121 does not seal inlet tube 11, water can comparatively quick mend in the water storage box 4, so regulating plate 122 move down its real comparatively fast, the condition of the weeping can take place less. However, when the water stored in the reservoir tank 4 needs to be replenished to the pump body 2, a certain amount of water is usually consumed at a time, and then the water level is maintained for a long period of time. This causes the upward adjustment plate 122 to move a little between the upper limit ring 17 and the lower limit ring 18.

After the permanent magnet 20 is added, when the water level in the water storage tank 4 drops, the upper end surface of the adjusting plate 122 is pressed, and the pressure comprises the water pressure and the gravity of the closing plate 121. When the pressure on the upper end surface of the adjusting plate 122 is smaller than the elastic force of the return spring 123, the suction force of the permanent magnet 20 prevents the adjusting plate 122 from moving upwards until the water level is slightly higher than the upper end of the sliding channel 14, at this time, the elastic force of the return spring 123 is larger than the sum of the pressure on the upper end surface of the adjusting plate 122 and the suction force of the permanent magnet 20, the adjusting plate 122 moves upwards, and due to the sudden drop phenomenon after the separation of the suction force of the permanent magnet 20, the elastic force of the return spring 123 changes linearly, so that the adjusting plate 122 directly moves upwards for a larger distance, the adjusting plate 122 is directly abutted against the rubber ring 19 of the upper limit ring 17 to realize compression sealing, and the closing plate 121 is staggered with the port of the water inlet pipe 11. At this time, the water replenishing operation is started, and water at the water outlet 22 is replenished into the water storage tank 4 through the conduit 8 until the adjusting plate 122 moves downwards to be adsorbed by the permanent magnet 20 and the closing plate 121 covers the port of the water inlet pipe 11. The movement state change of the adjusting plate 122 is adjusted by the magnetic force of the permanent magnet 20, and the condition that the adjusting plate 122 is in liquid seepage for a long time in the water storage consumption process is reduced.

Alternatively, the adjusting member 12 may be a ball valve connected to the water inlet pipe 11, and the opening and closing of the ball valve controls the opening and closing of the water inlet pipe 11.

The working principle of the embodiment is as follows:

when water needs to be replenished into the pump chamber, the water in the reservoir 4 is replenished into the pump chamber along the conduit 8 by opening the control valve 9. When the water storage is completed, the control valve 9 is closed. After the water in the water storage tank 4 is consumed, the water discharged from the water outlet 22 of the self-priming pump can be supplemented into the water storage tank 4 along the water inlet pipe 11 through the adjustment of the adjusting piece 12 according to the consumption condition of the water storage, so that the water storage in the water storage tank 4 is supplemented more conveniently.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a self priming pump, includes base (1), be equipped with the pump body (2) on base (1), be equipped with the pump chamber in the pump body (2), still be equipped with water inlet (21), delivery port (22) and moisturizing mouth (23) with the pump chamber intercommunication on the pump body (2), pump body (2) rotate and are connected with the impeller, the impeller is located the pump chamber, still be equipped with on base (1) and be used for driving impeller pivoted driving motor (3), its characterized in that: the base (1) is also provided with a water storage tank (4), and the capacity of the water storage tank (4) is more than twice of the capacity of the pump cavity; the height of the bottom of the water storage tank (4) is higher than that of the water replenishing port (23), the bottom of the water storage tank (4) is communicated with a guide pipe (8), one end, far away from the water storage tank (4), of the guide pipe (8) is communicated to the water replenishing port (23), the guide pipe (8) is further connected with a control valve (9), and the control valve (9) is used for controlling the on-off condition of the guide pipe (8);

the upper end of the water storage tank (4) is communicated with an air guide hole (6), the side wall of the water storage tank (4) is provided with a water inlet pipe (11), the water inlet pipe (11) is communicated to the position, close to the top, of the water storage tank (4), one end, far away from the water storage tank (4), of the water inlet pipe (11) is communicated to a water outlet (22), and the water inlet pipe (11) is provided with an adjusting piece (12) for controlling the on-off condition of the water inlet pipe (11);

the lower end of the water storage tank (4) is provided with a sliding channel (14), and the sliding channel (14) is communicated with the interior of the water storage tank (4); the adjusting piece (12) is arranged at one end, extending into the water storage tank (4), of the water inlet pipe (11), the adjusting piece (12) comprises a closing plate (121), an adjusting plate (122) and a return spring (123), and the closing plate (121) is connected into the water storage tank (4) in a sliding mode along the vertical direction; the adjusting plate (122) is connected to the closing plate (121) through a fixing rod (15), the adjusting plate (122) is connected in the sliding channel (14) in a sliding mode along the vertical direction and divides the sliding channel (14) into an upper area and a lower area, and the return spring (123) is located below the adjusting plate (122) so that the adjusting plate (122) has a tendency of moving upwards; when the water level in the water storage tank (4) rises to compress the return spring (123), the closing plate (121) closes the port of the water inlet pipe (11) communicated to the water storage tank (4).

2. The self-primer pump of claim 1 wherein: the adjusting piece (12) is a ball valve.

3. The self-primer pump of claim 1 wherein: regulating plate (122) is the ferromagnetism structure, it has permanent magnet (20) to slide passageway (14) internal fixation, permanent magnet (20) are located the below of regulating plate (122), work as after reset spring (123) are compressed, permanent magnet (20) adsorb in regulating plate (122).

4. The self-primer pump of claim 3 wherein: be equipped with spacing ring (17) and lower spacing ring (18) on in slide channel (14), it supplies to go up spacing ring (17) and supply above regulating plate (122) the regulating plate (122) move up the back and support tightly, spacing ring (18) are located the below of regulating plate (122) down supply regulating plate (122) move down the back and support tightly.

5. The self-primer pump of claim 4 wherein: the opposite end surfaces of the upper limiting ring (17) and the lower limiting ring (18) are provided with rubber rings (19).

6. The self-primer pump of claim 1 wherein: the water storage tank (4) is arranged in a transparent or semitransparent mode.

7. The self-primer pump of claim 6 wherein: the water storage tank (4) is provided with a plurality of scales (5), and the scales (5) are distributed along the vertical direction.