CN113530838B - Water pump with self-priming device - Google Patents

Water pump with self-priming device Download PDF

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Publication number
CN113530838B
CN113530838B CN202110932131.3A CN202110932131A CN113530838B CN 113530838 B CN113530838 B CN 113530838B CN 202110932131 A CN202110932131 A CN 202110932131A CN 113530838 B CN113530838 B CN 113530838B
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CN
China
Prior art keywords
water blocking
water
self
pump body
pump
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CN202110932131.3A
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Chinese (zh)
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CN113530838A (en
Inventor
王永康
梅玉波
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Zhejiang Donghang Fire Pump Co ltd
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Zhejiang Donghang Fire Pump Co ltd
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Priority to CN202110932131.3A priority Critical patent/CN113530838B/en
Publication of CN113530838A publication Critical patent/CN113530838A/en
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Publication of CN113530838B publication Critical patent/CN113530838B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/02—Self-priming pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/001—Actuating devices; Operating means; Releasing devices actuated by volume variations caused by an element soluble in a fluid or swelling in contact with a fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K49/00—Means in or on valves for heating or cooling
    • F16K49/002—Electric heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention provides a water pump with a self-priming device, which comprises a pump body and the self-priming device, wherein the self-priming device is used for pumping out air in an inner cavity of the pump body, a one-way air inlet valve is arranged at an air suction port of the self-priming device, an air inlet of the one-way air inlet valve is communicated with the inner cavity of the pump body, and an inductive switch is arranged on the self-priming device and is communicated with the inner cavity of the pump body. When the water pump is required to be used, air in the pump body is pumped away through the self-priming device, so that the inside of the pump body is gradually turned into a vacuum state, and water can be directly pumped into the pump cavity by the pump body during operation. The self-priming device automatically pumps air inside the pump body to replace the water filling into the pump body, so that the operation becomes more time-saving and labor-saving, and the water pump is more convenient to use. Moreover, all the control of the water pump is controlled mechanically, all the mechanical actions are automatically completed, and the water pump has the advantages of high reliability and difficult failure, and is particularly suitable for special environments such as fire fighting, ships, mines, environmental protection and the like.

Description

Water pump with self-priming device
Technical Field
The present invention relates to water pumps, and in particular, to a water pump having a self-priming device.
Background
A water pump is a machine that is used to deliver or pressurize a liquid, which is capable of delivering mechanical energy of a prime mover or other external energy to the liquid, causing the liquid to increase in energy.
The pump typically requires that the air inside the pump chamber be evacuated prior to use. Because if the air in the pump cavity cannot be emptied, after the water pump is started, the impeller in the pump cavity can only drive the air in the pump cavity to rotate, a certain vacuum cannot be formed in the pump cavity, and water cannot be pumped into the pump cavity. At present, the air in the pump cavity is generally emptied by adopting a water filling mode, and the problem that the operation is time-consuming and labor-consuming exists.
Disclosure of Invention
In view of the above, the present invention aims to provide a water pump with a self-priming device, which has the advantages of no need of filling water into the pump cavity before use, and time and labor saving in operation.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a water pump with from inhaling device, includes the pump body and from inhaling the device, from inhaling the device and be used for taking out air in the pump body inner chamber, from inhaling the induction port department of device and be provided with one-way admission valve, just the air inlet of one-way admission valve with the inner chamber of the pump body is linked together, from inhaling and being provided with inductive switch on the device, inductive switch with the inner chamber of the pump body is linked together, works as when the delivery port of the pump body begins the drainage, inductive switch steerable from inhaling the device and closing.
Through above-mentioned technical scheme, when needs use this water pump, through from inhaling the device with the inside air of pump body and take out for the inside vacuum state that changes gradually of pump body, the pump body can be with the water direct suction pump cavity in the operation like this. The self-priming device automatically pumps air inside the pump body to replace the water filling into the pump body, so that the operation becomes more time-saving and labor-saving, and the water pump is more convenient to use. The one-way air inlet valve is arranged at the air suction port of the self-priming device, and can prevent air from flowing back from the self-priming device to the pump body, so that the air suction efficiency of the self-priming device can be improved to a certain extent, and the inside of the pump body can be quickly shifted into a vacuum state. Moreover, all the control of the water pump adopts mechanical control, all the mechanical actions are automatically completed, and the device has the advantage of high reliability, and is particularly suitable for special environments such as fire fighting, ships, mines, environmental protection and the like.
Preferably, the pump further comprises a first connecting pipe and a second connecting pipe, one end of the first connecting pipe is communicated with the water inlet of the pump body, the other end of the first connecting pipe is communicated with the air inlet of the one-way air inlet valve, one end of the second connecting pipe is communicated with the pump cavity of the pump body, and the other end of the second connecting pipe is communicated with the air inlet of the one-way air inlet valve.
Through the technical scheme, when the self-priming device works, air at the water inlet of the pump body can be pumped out through the first connecting pipe, and air in the pump cavity of the pump body can be pumped out through the second connecting pipe. By the arrangement, the inside of the pump body can be quickly turned into a vacuum state.
Preferably, the self-priming device comprises a driving motor, a vacuum pump head and a transmission pair, wherein the driving motor drives the vacuum pump head to operate through the transmission pair, the transmission pair comprises a driving wheel arranged on an output shaft of the driving motor and a friction wheel arranged on an input shaft of the vacuum pump head, and the driving wheel and the friction wheel are mutually abutted.
Through the technical scheme, when the vacuum pump is used, the driving motor drives the driving wheel to rotate, the driving wheel drives the friction wheel to rotate, and the friction wheel drives the input shaft of the vacuum pump head to rotate, so that the vacuum pump head runs and pumps out air in the pump body.
Preferably, the friction wheel is slidingly connected with the input shaft of the vacuum pump head, and the friction wheel can slide back and forth along the axial direction of the input shaft of the vacuum pump head;
the induction switch comprises a connecting frame, a swinging rod and a hydraulic component, wherein the connecting frame is arranged on the vacuum pump head, the middle part of the swinging rod is hinged to the connecting frame, one end of the swinging rod is movably connected with the friction wheel, the other end of the swinging rod is movably connected with a response end of the hydraulic component, and a triggering end of the hydraulic component is communicated with a water outlet of the pump body;
when the water outlet of the pump body starts to drain, the hydraulic component drives the swinging rod to rotate around the connecting frame, so that the friction wheel is separated from the driving wheel.
Through the technical scheme, when the water outlet of the pump body starts to drain water, the water at the water outlet of the pump body can apply acting force to the triggering end of the hydraulic component, then the response end of the hydraulic component can push the swinging rod to enable the swinging rod to rotate around the connecting frame, and meanwhile, the swinging rod can drive the friction wheel to slide along the axial direction of the input shaft of the vacuum pump head, so that the friction wheel is separated from the driving wheel, and the self-priming device is in a closed state.
Preferably, the first connecting pipe and the second connecting pipe are both provided with water blocking mechanisms, each water blocking mechanism comprises a water blocking pipe and a water blocking ball arranged in the water blocking pipe, and when the water blocking ball contacts water, the water blocking ball absorbs water to expand and separate the water blocking pipe.
Through the technical scheme, when the inside of the pump body is filled with water, the water can enter the first connecting pipe and the second connecting pipe. When water enters the water blocking pipe and submerges the water blocking ball, the water blocking ball absorbs water to expand and cuts off the water blocking pipe so as to ensure that water is not easy to enter the self-priming device.
Preferably, the water blocking ball is arranged at the inner pipe wall of the water blocking pipe, a groove is formed at the inner pipe wall of the water blocking pipe, and the groove is opposite to the water blocking ball in the left-right direction.
Through the technical scheme, the water blocking ball is arranged at the inner pipe wall of the water blocking pipe, so that the water blocking ball is not easy to shake in the water blocking pipe, and the air extraction process is not easy to influence. Grooves are formed in the inner pipe wall of the water blocking pipe, and the grooves are opposite to the water blocking balls in the left-right direction. The water blocking pipe with the structure has larger inner hole, and air can smoothly pass through the water blocking pipe, so that the air extraction efficiency of the self-priming device is ensured.
Preferably, a placing groove is formed in the inner pipe wall of the water blocking pipe, the placing groove is opposite to the groove in the left-right direction, the water blocking ball is arranged in the placing groove, and one side of the water blocking ball protrudes out of a notch of the placing groove.
Through the technical scheme, the placing groove can limit the water blocking ball, so that the water blocking ball is not easy to move in the water blocking pipe, and the air suction process of the self-priming device is not easy to influence.
Preferably, a water blocking plate is glidingly connected in the groove, and a push plate is arranged on the water blocking plate;
when the water blocking ball absorbs water and expands, the water blocking ball can push the push plate, so that the water blocking plate is abutted against the inner pipe wall at the opposite side in the water blocking pipe.
Through the technical scheme, when the water blocking ball absorbs water and expands, the water blocking ball can push the water blocking plate through the push plate, so that the water blocking plate slides out of the groove and is propped against the inner pipe wall at the opposite side in the water blocking pipe, the water blocking pipe is blocked, and water is not easy to enter the self-priming device.
Preferably, the water blocking ball is rotationally connected in the placing groove, the rotation direction of the water blocking ball is the same as the sliding direction of the water blocking plate, a plurality of poking plates are arranged on the surface of the water blocking ball, the poking plates are uniformly distributed along the rotation direction of the water blocking ball, and the rotating groove for the poking plates to enter is formed in the inner groove wall of the placing groove.
Through the technical scheme, when the self-priming device is used for pumping air in the pump body, the air flowing in the water blocking pipe can drive the water blocking ball to rotate through the poking plate. In the process of water-blocking ball water-absorbing expansion, the toggle plate is gradually close to the push plate. When the toggle plate can be contacted with the push plate, the water blocking ball can push the push plate through the toggle plate, so that the water blocking plate slides out of the groove to separate the water blocking pipe.
Preferably, an electric heating plate is arranged inside the water blocking pipe, the electric heating plate is arranged along the circumferential direction of the water blocking pipe, a miniature power supply is arranged inside the water blocking pipe and electrically connected to the water blocking pipe, a remote control switch is arranged between the electric heating plate and the miniature power supply, and the remote control switch is used for controlling the electric heating plate to be connected with or disconnected from the miniature power supply.
Through above-mentioned technical scheme, after controlling the water pump and closing, accessible remote switch control miniature power and electric plate switch on, the electric plate can turn into heat energy with the electric energy this moment for add thermal resistance water ball, make in the water resistance ball water loss reduce. Thus, when the water pump is used again, the self-priming device can still be used for pumping air out of the pump body.
Drawings
FIG. 1 is a schematic diagram of an embodiment;
FIG. 2 is a schematic view of the structure of the self-priming device;
fig. 3 is a schematic structural view of the water blocking mechanism.
Reference numerals: 1. a pump body; 2. a self-priming device; 21. a driving motor; 22. a vacuum pump head; 23. a transmission pair; 231. a driving wheel; 232. a friction wheel; 3. a one-way air inlet valve; 4. an inductive switch; 41. a connecting frame; 42. a swinging rod; 43. a hydraulic component; 5. a first connecting pipe; 6. a second connecting pipe; 7. a water blocking mechanism; 71. a water blocking pipe; 72. a water blocking ball; 8. a groove; 9. a placement groove; 10. a water blocking plate; 11. a toggle plate; 12. a rotating groove; 13. an electric heating plate; 14. a miniature power supply; 15. and a remote control switch.
Detailed Description
The following detailed description of the invention is provided in connection with the accompanying drawings to facilitate understanding and grasping of the technical scheme of the invention.
A water pump with self-priming device, as shown in figure 1, comprises a pump body 1 and a self-priming device 2. The self-priming device 2 is used for pumping air inside the pump body 1, so that water can smoothly enter the pump body 1 when the pump body 1 is used normally.
The inside of the pump body 1 is provided with a pump cavity, and the inside of the pump cavity is rotationally provided with an impeller. One side of the pump body 1 is provided with a water inlet which is communicated with the pump cavity. The other side of the pump body 1 is provided with a water outlet which is communicated with the pump cavity. When the pump body 1 is normally used, the impeller rotates in the pump cavity, water enters the pump cavity from the water inlet, and the water in the pump cavity is discharged from the water outlet under the action of the impeller.
As shown in fig. 1 and 2, the self-priming device 2 includes a drive motor 21, a transmission pair 23, and a vacuum pump head 22. When in use, the driving motor 21 drives the vacuum pump head 22 to operate through the transmission pair 23 so as to pump air in the pump body 1.
The transmission pair 23 includes a driving wheel 231 and a friction wheel 232. The driving wheel 231 is coaxially arranged on the output shaft of the driving motor 21, and when in use, the driving wheel 231 can rotate around the axis of the driving motor 21. The friction wheel 232 is coaxially sleeved on the input shaft of the vacuum pump head 22, and the friction wheel 232 can slide back and forth along the axial direction of the input shaft of the vacuum pump head 22 under the action of external force. When the friction wheel 232 and the driving wheel 231 are abutted against each other, the vacuum pump head 22 is in an open state. When the friction wheel 232 is separated from the driving wheel 231, the vacuum pump head 22 is in a closed state.
The air inlet of the vacuum pump head 22 is provided with a one-way air inlet valve 3, the air inlet of the one-way air inlet valve 3 is provided with a three-way joint, and the two remaining interfaces of the three-way joint are respectively provided with a first connecting pipe 5 and a second connecting pipe 6. The end part of the first connecting pipe 5 far away from the three-way joint penetrates through the pump body 1 and is communicated with the water inlet of the pump body 1. The end part of the second connecting pipe 6, which is far away from the three-way joint, penetrates through the pump body 1 and is communicated with the pump cavity of the pump body 1.
As shown in fig. 1, 2 and 3, the first connecting pipe 5 and the second connecting pipe 6 are respectively provided with a water blocking mechanism 7, and when the water blocking mechanism 7 is used, the corresponding first connecting pipe 5 or the corresponding second connecting pipe 6 can be blocked, so that water is not easy to enter the self-priming device 2. The water blocking mechanism 7 includes a water blocking pipe 71 and a water blocking ball 72. The inside electric plate 13 that is provided with of choke pipe 71, and electric plate 13 sets up along the circumference of choke pipe 71, and the inside miniature power supply 14 that is provided with of choke pipe 71, miniature power supply 14 electricity are connected in choke pipe 71, are provided with remote switch 15 between electric plate 13 and miniature power supply 14, and remote switch 15 is used for controlling electric plate 13 and miniature power supply 14 switch-on or switch-off. The inner tube wall of the water blocking tube 71 is symmetrically provided with a groove 8 and a placing groove 9, and the groove 8 is opposite to the placing groove 9 from left to right. The inside of the groove 8 is connected with a water blocking plate 10 in a sliding way, and a pushing plate is arranged on the end face of the water blocking plate 10 facing the placing groove 9. When in use, the water blocking plate 10 can be pushed by the push plate, so that the water blocking plate 10 is abutted against the inner pipe wall on the opposite side of the water blocking pipe 71. The inner groove wall of the placement groove 9 is provided with a rotary groove 12, and the rotary groove 12 is arranged along the circumferential direction of the placement groove 9. The water blocking ball 72 is made of a water absorbing resin, and the water absorbing resin can absorb water and expand. The water blocking ball 72 is rotatably connected inside the placement groove 9, and one side of the water blocking ball 72 protrudes from the notch of the placement groove 9. A plurality of poking plates 11 are arranged at the side wall of the water blocking ball 72, and the poking plates 11 are uniformly distributed along the circumferential direction of the water blocking ball 72. When the water blocking ball 72 rotates, the toggle plate 11 can enter from one side of the rotating groove 12 and leave from the other side of the rotating groove 12.
As shown in fig. 1 and 2, the self-priming device 2 is provided with a sensing switch 4, the sensing switch 4 is communicated with the inner cavity of the pump body 1, and when the water outlet of the pump body 1 starts to discharge water, the sensing switch 4 can control the self-priming device 2 to be closed. The induction switch 4 includes a link frame 41, a swing lever 42, and a hydraulic member 43. The connection frame 41 is fixedly provided on a side wall of the vacuum pump head 22 between the friction wheel 232 and the hydraulic member 43. The middle part of the swinging rod 42 is hinged to the connecting frame 41, one end of the swinging rod 42 is movably connected to the friction wheel 232, and the other end of the swinging rod 42 is movably connected to the response end of the hydraulic component 43. The triggering end of the hydraulic part 43 is communicated with the water outlet of the pump body 1, and when the water outlet of the pump body 1 starts to drain, the hydraulic part 43 drives the swing rod 42 to rotate around the connecting frame 41, so that the friction wheel 232 is separated from the driving wheel 231.
Of course, the above is only a typical example of the invention, and other embodiments of the invention are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the invention claimed.

Claims (5)

1. A water pump with self-priming device (2), characterized by: the self-priming pump comprises a pump body (1) and a self-priming device (2), wherein the self-priming device (2) is used for pumping out air in an inner cavity of the pump body (1), a one-way air inlet valve (3) is arranged at an air suction port of the self-priming device (2), an air inlet of the one-way air inlet valve (3) is communicated with the inner cavity of the pump body (1), an inductive switch (4) is arranged on the self-priming device (2), the inductive switch (4) is communicated with the inner cavity of the pump body (1), and when a water outlet of the pump body (1) starts to discharge water, the inductive switch (4) can control the self-priming device (2) to be closed;
the device further comprises a first connecting pipe (5) and a second connecting pipe (6), wherein one end of the first connecting pipe (5) is communicated with the water inlet of the pump body (1), the other end of the first connecting pipe (5) is communicated with the air inlet of the one-way air inlet valve (3), one end of the second connecting pipe (6) is communicated with the pump cavity of the pump body (1), and the other end of the second connecting pipe (6) is communicated with the air inlet of the one-way air inlet valve (3);
the water blocking mechanism (7) is arranged in the first connecting pipe (5) and the second connecting pipe (6), the water blocking mechanism (7) comprises a water blocking pipe (71) and a water blocking ball (72) arranged in the water blocking pipe (71), and when the water blocking ball (72) contacts water, the water blocking ball (72) absorbs water to expand and separate the water blocking pipe (71);
the water blocking ball (72) is arranged at the inner pipe wall of the water blocking pipe (71), a groove (8) is formed at the inner pipe wall of the water blocking pipe (71), and the groove (8) is opposite to the water blocking ball (72) in left and right directions;
a placing groove (9) is formed in the inner pipe wall of the water blocking pipe (71), the placing groove (9) is opposite to the groove (8) in the left-right direction, the water blocking ball (72) is arranged in the placing groove (9), and one side of the water blocking ball (72) protrudes from a notch of the placing groove (9);
a water blocking plate (10) is connected in the groove (8) in a sliding way, and a push plate is arranged on the water blocking plate (10);
when the water blocking ball (72) absorbs water and expands, the water blocking ball (72) can push the push plate, so that the water blocking plate (10) is abutted against the inner pipe wall at the opposite side in the water blocking pipe (71).
2. A water pump with self-priming device (2) according to claim 1, characterized in that: the self-priming device (2) comprises a driving motor (21), a vacuum pump head (22) and a transmission pair (23), wherein the driving motor (21) can drive the vacuum pump head (22) to operate through the transmission pair (23), the transmission pair (23) comprises a driving wheel (231) arranged on an output shaft of the driving motor (21) and a friction wheel (232) arranged on an input shaft of the vacuum pump head (22), and the driving wheel (231) and the friction wheel (232) are mutually abutted.
3. A water pump with self-priming device (2) according to claim 2, characterized in that: the friction wheel (232) is connected with the input shaft of the vacuum pump head (22) in a sliding way, and the friction wheel (232) can slide back and forth along the axial direction of the input shaft of the vacuum pump head (22);
the induction switch (4) comprises a connecting frame (41), a swinging rod (42) and a hydraulic component (43), wherein the connecting frame (41) is arranged on the vacuum pump head (22), the middle part of the swinging rod (42) is hinged to the connecting frame (41), one end of the swinging rod (42) is movably connected to the friction wheel (232), the other end of the swinging rod (42) is movably connected to a response end of the hydraulic component (43), and a triggering end of the hydraulic component (43) is communicated with a water outlet of the pump body (1);
when the water outlet of the pump body (1) starts to discharge water, the hydraulic component (43) drives the swinging rod (42) to rotate around the connecting frame (41), so that the friction wheel (232) is separated from the driving wheel (231).
4. A water pump with self-priming device (2) according to claim 1, characterized in that: the water blocking ball (72) is rotationally connected in the placing groove (9), the rotation direction of the water blocking ball (72) is the same as the sliding direction of the water blocking plate (10), a plurality of poking plates (11) are arranged on the surface of the water blocking ball (72), the poking plates (11) are uniformly distributed along the rotation direction of the water blocking ball (72), and rotating grooves (12) for the poking plates (11) to enter are formed in the inner groove wall of the placing groove (9).
5. A water pump with self-priming device (2) according to claim 1, characterized in that: the electric heating device is characterized in that an electric heating plate (13) is arranged inside the water blocking pipe (71), the electric heating plate (13) is arranged along the circumference of the water blocking pipe (71), a miniature power supply (14) is arranged inside the water blocking pipe (71), the miniature power supply (14) is electrically connected to the water blocking pipe (71), a remote control switch (15) is arranged between the electric heating plate (13) and the miniature power supply (14), and the remote control switch (15) is used for controlling the electric heating plate (13) to be conducted or disconnected with the miniature power supply (14).
CN202110932131.3A 2021-08-13 2021-08-13 Water pump with self-priming device Active CN113530838B (en)

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Application Number Priority Date Filing Date Title
CN202110932131.3A CN113530838B (en) 2021-08-13 2021-08-13 Water pump with self-priming device

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Application Number Priority Date Filing Date Title
CN202110932131.3A CN113530838B (en) 2021-08-13 2021-08-13 Water pump with self-priming device

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CN113530838A CN113530838A (en) 2021-10-22
CN113530838B true CN113530838B (en) 2023-07-14

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CN105736388A (en) * 2016-02-29 2016-07-06 蒋燕群 Automatic control type efficient self sucking pump
CN107939693A (en) * 2017-11-14 2018-04-20 浙江群石工业设计有限公司 A kind of automatic intelligent self priming pump
CN108703098B (en) * 2018-04-03 2021-03-02 金华市呗力水产养殖技术有限公司 Fish feeding device with stirring blades
CN212297808U (en) * 2020-05-11 2021-01-05 金科伟业（中国）有限公司 Water-blocking core and water leakage protection switch thereof
CN112594196A (en) * 2020-12-09 2021-04-02 湖南精工特泵有限公司 Vacuum self-suction device for pump

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Denomination of invention: A water pump with self-priming device

Granted publication date: 20230714

Pledgee: Bank of Ningbo Co.,Ltd. Taizhou Branch

Pledgor: ZHEJIANG DONGHANG FIRE PUMP Co.,Ltd.

Registration number: Y2024330001802