CN116221139A

CN116221139A - Submersible pump and automatic protection device for water shortage

Info

Publication number: CN116221139A
Application number: CN202310507470.6A
Authority: CN
Inventors: 王军峰
Original assignee: Hebei Runhe Pump Co ltd
Current assignee: Hebei Runhe Pump Co ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-06-06
Anticipated expiration: 2043-05-08
Also published as: CN116221139B

Abstract

The invention discloses a submersible pump and an automatic water shortage protection device, the submersible pump comprises: the water inlet head filtering component is used for entering the filtered water body; the telescopic power assembly is arranged at the end part of the water inlet head filtering assembly and is used for switching the form of the water inlet head filtering assembly; the water speed sensing unit is arranged in the water inlet head filtering assembly and is used for sensing the water inlet flow rate; the device is used for adjusting the water level of the water source of the submersible pump. The invention combines the functions of the water inlet head filter assembly and the posture adjustment device through the arranged water speed sensing unit, the state of the water inlet head filter assembly is switched to judge whether blockage occurs, and the posture adjustment device is used for adjusting the water level of the water source of the submersible pump so as to obtain a pre-water shortage state, and alarms through the single chip microcomputer control alarm to warn the staff to find and process in time.

Description

Submersible pump and automatic protection device for water shortage

Technical Field

The invention relates to the technical field of pumps, in particular to a submersible pump and an automatic water shortage protection device.

Background

The submersible pump is an important device for deep well water extraction. When in use, the whole submerged pump unit works under water to extract groundwater to the ground surface, and the submerged pump unit consists of a water pump, a submerged motor (comprising a cable), a water pipe and a control switch. After the submersible pump starts to operate after starting, monitoring and observing the water level change are enhanced, and the electric pump is ensured to operate in the working condition range;

the existing submersible pump usually lacks water and idle running, the air switch of the power supply system is used for protecting, at the moment, certain damage is caused to the pump body, and the alarm can not be given out when water is about to be lacking and the corresponding power-off protection can not be timely carried out.

Disclosure of Invention

The invention aims to provide a submerged pump and an automatic water shortage protection device, which are used for judging whether blockage occurs or not through state switching of a water inlet head filtering component, and a posture adjusting device is used for adjusting the water level of a submerged pump water source so as to obtain a pre-water shortage state, and an alarm is controlled by a singlechip to give an alarm so as to warn workers to find and process in time.

In order to achieve the above purpose, the present invention provides the following technical solutions: a submersible pump comprising: the water inlet head filtering component is used for entering the filtered water body; the telescopic power assembly is arranged at the end part of the water inlet head filtering assembly and is used for switching the form of the water inlet head filtering assembly; the water speed sensing unit is arranged in the water inlet head filtering assembly and is used for sensing the water inlet flow rate; the multistage impeller device transmits the energy of the prime motor to the water body in the pump through the action of centrifugal force, so that the speed and the pressure of the water body are increased; the control system is arranged at the rear end of the multi-stage impeller device and provides driving force for the multi-stage impeller device; the device also comprises a posture adjusting device for adjusting the water level height of the water source of the submersible pump; when the sensing speed of the water speed sensing unit is lower than the set standard flow speed, the control system controls the telescopic power assembly to switch the form of the water inlet head filtering assembly for quick sewage discharge, and the control system can also control the driving gesture adjusting device to operate for judging whether water is deficient or not; an air circuit breaker and an alarm are arranged in the control system.

Preferably, the water inlet head filtering component comprises a mounting sleeve, a plurality of mounting grooves arranged at one end of the mounting sleeve, arc-shaped strips rotatably arranged in each mounting groove through a pin shaft, and a water inlet cover arranged at the end parts of the plurality of arc-shaped strips; the end part of the water inlet cover, which is close to the mounting sleeve, is connected with a cone part, a filter screen is arranged at the bottom of the cone part, and a movable sleeve which is arranged at the other end of the mounting sleeve and can move in a telescopic manner is arranged at the other end of the mounting sleeve; the driving wheel is sleeved on the outer wall of the extension sleeve, and the sector teeth are arranged at the end parts of each arc-shaped strip, the sector teeth are meshed with the driving wheel for transmission, and when the driving wheel where the extension sleeve is positioned moves in a telescopic manner, the extension sleeve can be used for contraction and expansion of the arc-shaped strips.

Preferably, the telescopic power assembly comprises a mounting ring fixed on the outer wall of the movable sleeve, a plurality of first hydraulic telescopic rods are connected between the mounting ring and the end part of the mounting sleeve, and fan blades are arranged between the movable sleeve and the mounting sleeve.

Preferably, the multistage impeller device comprises a plurality of communicated impeller bodies, the head ends and the tail ends of the impeller bodies are respectively connected with the telescopic sleeves and the control system, and a plurality of mounting strips are arranged on the outer wall of the impeller body, one ends of the mounting strips are used for fixing the mounting sleeves, and the other ends of the mounting strips are fixed on the control system.

Preferably, the water speed sensing unit comprises a driving wheel arranged on the inner wall of the movable sleeve, a rotatable mounting frame is arranged in the middle of the driving wheel, and an angular speed sensor arranged in the middle of the driving wheel is used for sensing the rotating speed of the mounting frame.

Preferably, the posture adjusting device comprises a frame body and two transverse bars fixed at the bottom of the frame body and transversely arranged, and a first sliding block is arranged in a groove where each transverse bar is positioned; the support rods are rotatably arranged at the end parts of the cross bars through pin shafts, a second slidable movable block is arranged in a groove where each support rod is located, the first movable block is rotatably connected with the side wall of the support rod through the pin shaft, and a first rotatable connecting rod is arranged on the pin shaft where the second connecting rod is located, and the first connecting rod is rotatably connected with the pin shaft where the second movable block is located; limiting rods are fixed on the opposite surfaces of the two second movable blocks and are used for connecting the submersible pump; and the second hydraulic telescopic rod is arranged in the groove where the transverse bar is positioned and is used for driving the first movable block to move.

Preferably, the universal wheels are arranged at the bottoms of the transverse bars and used for moving the frame body.

The automatic water shortage protection device is applied to the submersible pump and comprises a box body and a first rotatable transmission gear arranged in the box body, wherein the first transmission gear is arranged on an installation seat on the outer wall of the box body and used for driving a shaft core in the installation seat to rotate, and the shaft core is used for driving the multistage impeller device to rotate; the plurality of mounting pieces are fixed in the box body and are respectively used for rotatably mounting a first bevel gear, a second bevel gear and a second transmission gear, the second transmission gear is meshed with the first transmission gear for transmission, and a transmission rod is fixedly connected with the end part of the second transmission gear, and sequentially penetrates through holes of the first bevel gear and the second bevel gear and extends for a certain distance; the driving motor is fixed on the outer wall of the box body, an output shaft of the driving motor extends to the inside of the box body and is fixedly provided with driving teeth, the driving teeth are respectively meshed and driven with a first bevel gear and a second bevel gear, and are connected with a second butt joint shaft sleeve arranged on the transmission rod in a spline mode, the driving motor is arranged on two first butt joint shaft sleeves opposite to the first bevel gear and the mounting piece, the first butt joint shaft sleeves can be matched with the second butt joint shaft sleeves, and the connecting rod in the box body is arranged to stir the assembly for transient steering switching of the first transmission teeth.

Preferably, the connecting rod stirring assembly comprises a mounting column arranged on the inner wall of the box body, a swingable mounting rod is mounted on the mounting column, a connecting frame is fixed at the top of the mounting rod, two sides of the connecting frame are respectively and rotatably connected with a mounting piece through a pin shaft, and the mounting piece can slide in a limiting manner in a circular groove in the middle of the second butt joint shaft sleeve; the driving piece is arranged at the bottom of the mounting rod, is of a V-shaped structure, two limiting rods are arranged at the end parts of the V-shaped structure where the driving piece is located, and a deflector rod connected to the middle part of the driving piece in a rotating mode, and when the deflector rod swings, the limiting rods trigger the driving piece to swing; the connecting shaft is fixed in the middle of the first transmission gear, a first swinging strip is rotatably arranged at the end part of the connecting shaft, one end, far away from the connecting shaft, of the first swinging strip is rotatably connected with the connecting strip, and the end, far away from the first swinging strip, of the connecting strip is rotatably connected with the middle of the deflector rod through a pin shaft; and the extension bar is fixed on the connecting shaft, an electric telescopic rod is arranged at the end part of the extension bar, far away from the connecting shaft, and the extension bar is used for poking the first swinging bar to deflect when the electric telescopic rod stretches.

Preferably, the mounting seat is provided with a guide pipe and a cooling sleeve sleeved on the outer wall of the driving motor, the inner wall of the cooling sleeve is provided with cooling pipelines which are spirally distributed, one end of each cooling pipeline is communicated with the guide pipe, and the other end of each cooling pipeline is communicated with a drain pipe; the cooling sleeve is characterized by further comprising a temperature sensor arranged on the inner wall of the cooling sleeve and used for monitoring the working temperature of the driving motor.

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

1. the structure and the method are designed by the water speed sensing unit, which is used for sensing the water inflow flow rate, matching with the functions of the water inflow head filtering assembly and the posture adjusting device, switching the state of the water inflow head filtering assembly, judging whether blockage occurs or not, adjusting the posture adjusting device, and adjusting the water level height of the water source of the submersible pump so as to obtain a pre-water shortage state, and controlling the alarm to alarm through the singlechip to warn the staff to find and process in time.

2. As another embodiment of the invention, the posture adjusting device can adjust the angle and the telescopic length of the submersible pump, so that the water inlet head filtering component of the submersible pump is close to the lowest water level of the river channel to adjust the water source liquid level height of the submersible pump, and meanwhile, the posture adjusting device can support and install the submersible pump to avoid misjudgment caused by the fact that the self dumping or placing position is changed, and the submersible pump does not reach the real water shortage state.

3. As other embodiments of the automatic water shortage protection device, the extension time of the electric telescopic rod is set, when the water inlet head filtering component is switched from the concave state to the convex state, namely the corresponding water inlet filtering state is switched to the sewage discharging state, the multistage impeller device has a short-time positive and negative rotation, so that water flow impact acts on the water inlet head filtering component in the convex state, and the sewage discharging effect is further improved.

4. According to the invention, the temperature sensor on the inner wall of the cooling sleeve is used for further passing through the water speed sensing unit when the temperature sensor is abnormally heated; if the water speed is unchanged, the fact that the exciting coil inside the driving motor where the submersible pump is located is failed is indicated, the single chip microcomputer controls the driving motor to stop immediately, if the water speed is reduced, the pollution discharge process of the water head filtering assembly and the adjustment of the water source liquid level height of the submersible pump by the posture adjusting device are sequentially carried out, if the temperature is abnormal again, the fact that the water is lost or idled is indicated at the moment, the single chip microcomputer receives induction and controls the driving motor to stop, and then an automatic water loss protection mechanism is achieved.

Drawings

FIG. 1 is a schematic perspective view of a submersible pump according to embodiment 1 of the present invention;

FIG. 2 is a schematic view of the disassembled perspective structure of FIG. 1;

FIG. 3 is a schematic perspective view of the structure of FIG. 2;

fig. 4 is a schematic diagram showing a disassembled structure of the automatic water shortage protection device in embodiment 3 of the present invention;

FIG. 5 is a schematic view of the enlarged partial structure of FIG. 4;

FIG. 6 is a schematic perspective view of the structure of FIG. 4;

FIG. 7 is a schematic view showing an assembled planar structure of a submersible pump and an attitude adjusting device according to embodiment 3 of the present invention;

FIG. 8 is a schematic perspective view of FIG. 7;

FIG. 9 is a schematic view of the second perspective view of FIG. 8;

fig. 10 is a perspective view of the third view of fig. 8.

In the figure: 1. a case; 2. a mounting bar; 3. a cooling jacket; 4. an impeller body; 5. a telescopic sleeve; 6. a mounting ring; 7. a movable sleeve; 8. a first hydraulic telescoping rod; 9. a mounting sleeve; 10. an arc-shaped strip; 12. a water inlet cover; 13. a support bar; 14. a cone portion; 15. a driving wheel; 16. a mounting frame; 17. an angular velocity sensor; 18. a fan blade; 19. an extension sleeve; 20. a mounting groove; 21. sector teeth; 22. a filter screen; 23. a conduit; 24. a drain pipe; 25. a mounting base; 26. a driving motor; 27. a first drive tooth; 28. a connecting shaft; 29. an extension strip; 30. a first pendulum bar; 31. a connecting strip; 32. an electric telescopic rod; 33. a transmission rod; 34. a drive tooth; 35. a first bevel gear; 36. a second bevel gear; 37. a first docking sleeve; 38. a second docking sleeve; 39. a connection frame; 40. a mounting column; 41. a deflector rod; 42. a mounting rod; 43. a second drive tooth; 44. a frame body; 45. a cross bar; 46. a second hydraulic telescoping rod; 47. a first link; 48. a second link; 50. a first movable block; 51. a second movable block; 52. a support rod; 53. a universal wheel; 54. a limit rod; 55. a mounting member; 56. a transmission member.

Detailed Description

In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

Referring to fig. 1 to 10, the present invention preferably provides the following technical solutions: a submersible pump comprising: submersible pump;

the water inlet head filtering component is used for entering the filtered water body; the telescopic power assembly is arranged at the end part of the water inlet head filtering assembly and is used for switching the form of the water inlet head filtering assembly; the water speed sensing unit is arranged in the water inlet head filtering assembly and is used for sensing the water inlet flow rate; the multistage impeller device transmits the energy of the prime motor to the water body in the pump through the action of centrifugal force, so that the speed and the pressure of the water body are increased; the control system is arranged at the rear end of the multi-stage impeller device and provides driving force for the multi-stage impeller device; the device also comprises a posture adjusting device for adjusting the water level height of the water source of the submersible pump; when the sensing speed of the water speed sensing unit is lower than the set standard flow speed, the control system controls the telescopic power assembly to switch the form of the water inlet head filtering assembly for quick sewage discharge, and the control system can also control the driving posture adjusting device to operate for judging whether water is deficient or not; an air circuit breaker and an alarm are arranged in the control system.

In this embodiment, as shown in fig. 1 to 3, a schematic structural diagram of a submersible pump is shown, and in combination with fig. 8 to 10, a schematic structural diagram of an assembly structure of a posture adjustment device and the submersible pump is shown, and a control system includes a motor and a single chip microcomputer control unit, which are all in the prior art, when the water pump works normally, as shown in fig. 7, the water pump is placed in a river water body, a multistage impeller device transfers the energy of a prime mover to the water body in the pump through the action of centrifugal force, so that the water body increases speed and pressure, thereby realizing the water pumping process, and the water flow rate is sensed by a water speed sensing unit, when the water flow rate suddenly decreases, the water flow rate is low-speed flow V1, at this time, the water speed sensing unit senses the information to be transmitted into the single chip microcomputer, and controls and drives a telescopic power assembly to work, so that the water inlet head filter assembly is switched from a water inlet filter state to a sewage state, when the water inlet head filter assembly completes one-time switching and resetting, at this time, the water inlet head filter assembly completes one-time sewage disposal treatment, and the water inlet flow rate is sensed again by the water speed sensing unit, so that the change of the water inlet flow rate V1 is low-speed;

if the water inflow flow rate is increased at a lower speed, the flow V1 is indicated to be in a blocking state, and no further treatment is needed;

if the water inflow flow rate is lower and the flow V1 is unchanged, the water flow rate is not reduced due to blockage, at the moment, the singlechip further controls the posture adjusting device to adjust the water level of the water source of the submersible pump, at the moment, when the water level of the water source of the submersible pump is reduced to the lowest level, the water inflow flow rate is further increased, the condition that the water shortage state is reached at the moment is also indicated, at the moment, the singlechip controls the alarm to alarm, and the staff is warned to find and process in time;

and through the air circuit breaker that sets up, when totally lack of water and idle running state, the air circuit breaker control makes the whole outage of pump body, and the air circuit breaker is the prior art of maturing, is a kind of switch that will break off automatically as long as the current exceeds rated current in the circuit.

Further, the water inlet head filter assembly comprises a mounting sleeve 9, a plurality of mounting grooves 20 arranged at one end of the mounting sleeve 9, an arc-shaped strip 10 rotatably arranged in each mounting groove 20 through a pin shaft, and a water inlet cover 12 arranged at the end parts of the arc-shaped strips 10; the end of the water inlet cover 12, which is close to the mounting sleeve 9, is connected with a cone part 14, a filter screen 22 is arranged at the bottom of the cone part 14, and a movable sleeve 7 which is arranged at the other end of the mounting sleeve 9 and can move in a telescopic manner is arranged, one end of the movable sleeve 7, which is close to the mounting groove 20, is communicated with an extension sleeve 19, the extension sleeve 19 is communicated with the cone part 14, and the other end of the movable sleeve 7 is communicated with the multi-stage impeller device through a telescopic sleeve 5; the driving wheel 15 sleeved on the outer wall of the extension sleeve 19, and the sector teeth 21 arranged at the end part of each arc-shaped strip 10 are meshed with the driving wheel 15 for driving, and can be used for shrinking and expanding the arc-shaped strips 10 when the driving wheel 15 where the extension sleeve 19 is positioned stretches and moves.

With the water inlet head filtering assembly, as shown in fig. 1, 2 and 3, under the structure, preferably, the cone part 14 and the water inlet cover 12 are made of elastic rubber materials, and support bars 13 are annularly distributed on the inner walls of the water inlet cover 12 and the cone part 14 and are used for supporting the inner surfaces of the cover body structures of the water inlet cover 12 and the cone part 14, and the support bars 13 are formed by two sections, one section is distributed on the inner wall of the water inlet cover 12, the other section is distributed on the inner wall of the cone part 14, and the connection parts of the two sections are in rotary connection, as shown in the states of fig. 1 to 3, and are in a water inlet filtering state;

when the inflow flow rate is reduced, the telescopic power assembly works, the movable sleeve 7 can be driven to move towards the direction close to the mounting sleeve 9, and then the driving wheel 15 where the extension sleeve 19 is located moves, at the moment, the driving wheel 15 is meshed with the sector teeth 21 where the arc-shaped strip 10 is located to drive the arc-shaped strip 10 to rotate around the pin shaft, so that the open state of the arc-shaped strip 10 is realized, meanwhile, the extension sleeve 19 drives the filter screen 22 where the cone 14 is located to lift, and due to the material characteristics of the cone 14 and the water inlet cover 12 and the structural arrangement of the support bar 13, the water inlet head filter assembly can be switched from the concave state to the convex state, namely the corresponding water inlet filter state to the blowdown state, at the moment, under the structure, self cleaning blowdown can be realized, and the telescopic power assembly resets, so that the concave state can be recovered, namely the water inlet head filter assembly can be in the concave state.

Further, the telescopic power assembly comprises a mounting ring 6 fixed on the outer wall of the movable sleeve 7, a plurality of first hydraulic telescopic rods 8 are connected between the mounting ring 6 and the end part of the mounting sleeve 9, and fan blades 18 are arranged between the movable sleeve 7 and the mounting sleeve 9.

As shown in fig. 2, the number of the first hydraulic telescopic rods 8 is preferably three, when the first hydraulic telescopic rods 8 move in a telescopic manner, the movable sleeve 7 where the mounting ring 6 is located can be driven to move in a telescopic manner inside the mounting sleeve 9, so that the state switching of the water inlet head filtering component can be realized, and the fan blades 18 arranged between the movable sleeve 7 and the mounting sleeve 9 are matched, so that part of silt impurities can be prevented from entering the gaps between the mounting sleeve 9 and the movable sleeve 7.

Further, the multistage impeller device comprises a plurality of communicated impeller bodies 4, the head end and the tail end of each impeller body 4 are respectively connected with a telescopic sleeve 5 and a control system, and a plurality of mounting strips 2 are arranged on the outer wall of each impeller body 4, one ends of the mounting strips 2 are used for fixing mounting sleeves 9, and the other ends of the mounting strips 2 are fixed on the control system.

The multistage impeller device is the prior art, and the flexible cover 5 that its front end set up for the passageway of intaking that the intercommunication movable cover 7 was located satisfies the elasticity of movable cover 7 simultaneously, and the connection effect of installing strip 2 can fix a plurality of groups impeller body 4, fixes installation cover 9 and control system simultaneously.

Further, the water speed sensing unit comprises a driving wheel 15 arranged on the inner wall of the movable sleeve 7, a rotatable mounting frame 16 is arranged in the middle of the driving wheel 15, and an angular speed sensor 17 arranged in the middle of the driving wheel 15 and used for sensing the rotating speed of the mounting frame 16.

As shown in fig. 2, under the effect of the water speed sensing unit structure, when the water inflow passes through the mounting frame 16, the mounting frame 16 can be driven to rotate, when the water flow is higher, the rotating speed is higher, when the water flow is slowed down, the rotating speed is reduced, the rotating speed condition of the mounting frame 16 can be judged through the arrangement of the angular velocity sensor 17, and the flow velocity condition of the water flow can be judged.

Example 2

As another embodiment of the present invention, the posture adjustment apparatus includes a frame body 44, and two transverse bars 45 fixed at the bottom of the frame body 44 and transversely arranged, and a first slidable movable block 50 is installed in a groove where each transverse bar 45 is located; the support rods 52 are rotatably arranged at the end parts of the transverse bars 45 through pin shafts, a second slidable movable block 51 is arranged in a groove where each support rod 52 is positioned, the first movable block 50 is rotatably connected with the side wall of each support rod 52 through the pin shaft, a first rotatable connecting rod 47 is arranged on the pin shaft where the second connecting rod 48 is positioned, and the first connecting rod 47 is rotatably connected with the pin shaft where the second movable block 51 is positioned; a limiting rod 54 is fixed on the opposite surfaces of the two second movable blocks 51 and is used for connecting the submersible pump; and a second hydraulic telescopic rod 46 arranged in the groove of the transverse bar 45 and used for driving the first movable block 50 to move.

Under this structure, as shown in fig. 7 to 10, through the posture adjustment device that sets up, in embodiment 1, namely when the inflow velocity of water is lower, when flow V1 does not change, then indicate that the discharge that is not blockked up and cause reduces, at this moment, the singlechip further controls posture adjustment device, at this moment, the singlechip control and drive second hydraulic telescoping rod 46 retract, make first movable block 50 move to the direction that is close to arc strip 10 at the recess that horizontal strip 45 is located, as in the state of fig. 7, at this moment, the inclination of second connecting rod 48 gradually increases, make the contained angle between bracing piece 52 and horizontal strip 45 increase, under the effect of first connecting rod 47, second movable block 51 moves to the direction that is close to arc strip 10 in the recess that bracing piece 52 is located, at this moment, make the immersible pump increase simultaneously downward elongation with the inclination angle of support body 44, namely through carrying out angle and flexible length adjustment to the immersible pump, make the water head filter assembly press close to the minimum water level of river course at this moment, adjust immersible pump water level height, simultaneously, posture adjustment device can support the immersible pump installation, avoid falling down or place the position change because of oneself, and the fact that the immersible pump does not arrive the true misjudging that the water does not arrive.

Further, the universal wheels 53 are arranged at the bottom of the transverse bar 45 and used for moving the frame body 44, so that the pump body can be conveniently transferred during working.

Example 3

As other embodiments of the present invention, the automatic water shortage protection device is applied to the submersible pump, and the automatic water shortage protection device comprises a tank body 1, and a first rotatable transmission gear 27 arranged in the tank body 1, a mounting seat 25 arranged on the outer wall of the tank body 1, wherein the first transmission gear 27 is used for driving a shaft core in the mounting seat 25 to rotate, and the shaft core is used for driving a multistage impeller device to rotate; and a plurality of mounting members 55 fixed inside the case 1, for rotatably mounting the first bevel gear 35, the second bevel gear 36 and the second transmission gear 43, respectively, the second transmission gear 43 being engaged with the first transmission gear 27 for transmission, and a transmission rod 33 fixedly connected to an end of the second transmission gear 43, the transmission rod 33 sequentially passing through the through holes of the first bevel gear 35 and the second bevel gear 36 and extending a distance; the driving motor 26 is fixed on the outer wall of the box body 1, an output shaft of the driving motor 26 extends into the box body 1 and is fixedly provided with driving teeth 34, the driving teeth 34 are respectively meshed with a first bevel gear 35 and a second bevel gear 36 for transmission, the driving teeth 34 are connected with a second butting shaft sleeve 38 arranged on the transmission rod 33 in a spline mode, two first butting shaft sleeves 37 are arranged on the opposite face of the first bevel gear 35 and the mounting piece 55, the first butting shaft sleeves 37 can be matched with the second butting shaft sleeves 38, and a connecting rod poking assembly is arranged in the box body 1 and used for short-term steering switching of the first transmission teeth 27.

In this embodiment, as shown in fig. 4, 5 and 6, another implementation manner of the automatic water shortage protection device, that is, the control system, is to switch the water inlet head filtering assembly from the concave state to the convex state, that is, to switch the corresponding water inlet filtering state to the blowdown state, so as to assist the blowdown process of the water inlet head filtering assembly;

specifically, when the driving motor 26 works, the driving teeth 34 serve as driving force, so that the first bevel gear 35 meshed with the driving teeth rotates in the opposite direction to the second bevel gear 36, as shown in the state of fig. 5, at this time, the second butting shaft sleeve 38 is butted with the first butting shaft sleeve 37 where the first bevel gear 35 is located, and the rotation direction of the first bevel gear 35 is transmitted to the second butting shaft sleeve 38, so that the second driving teeth 43 where the driving rod 33 is located are driven to rotate, and further, the first driving teeth 27 are driven to rotate by assuming that the anticlockwise rotation direction of the multistage impeller device is normally driven;

further, the connecting rod stirring assembly comprises a mounting column 40 arranged on the inner wall of the box body 1, a swingable mounting rod 42 is mounted on the mounting column 40, a connecting frame 39 is fixed at the top of the mounting rod 42, two sides of the connecting frame 39 are respectively and rotatably connected with a mounting piece 55 through a pin shaft, and the mounting piece 55 can slide in a limiting manner in a circular groove in the middle of the second butt joint shaft sleeve 38; the driving piece 56 is arranged at the bottom of the mounting rod 42, the driving piece 56 is in a V-shaped structure, two limiting rods 54 are arranged at the ends of the V-shape where the driving piece 56 is positioned, and the deflector rod 41 is rotatably connected to the middle part of the driving piece 56, and when the deflector rod 41 swings, the limiting rods 54 trigger the driving piece 56 to swing; the connecting shaft 28 is fixed in the middle of the first transmission gear 27, the first swinging strip 30 is rotatably arranged at the end part of the connecting shaft 28, the connecting strip 31 is rotatably connected to one end of the first swinging strip 30 far away from the connecting shaft 28, and the end part of the connecting strip 31 far away from the first swinging strip 30 is rotatably connected with the middle of the deflector rod 41 through a pin shaft; and an extension bar 29 fixed on the connecting shaft 28, wherein an electric telescopic rod 32 is arranged at the end of the extension bar 29 far away from the connecting shaft 28, and is used for poking the first swinging bar 30 to deflect when the electric telescopic rod 32 stretches.

Through the connecting rod poking component, when the water flow is low, the singlechip controls the electric telescopic rod 32 and stretches the electric telescopic rod, at the moment, the length of the electric telescopic rod 32 is enough to poke the first swinging rod 30 to rotate, as shown in fig. 5, the anticlockwise rotation of the first transmission gear 27 can be realized, when the electric telescopic rod 32 and the first swinging rod 30 rotate, poking and deflection of the first swinging rod 30 can be realized, under the connection effect of the connecting rod 31, the poking rod 41 can be driven to rapidly right side from left side, the installation rod 42 where the transmission piece 56 is located can be further driven to deflect by matching with the limit rod 54 arranged at the end part of the transmission piece 56, under the limit connection effect of the installation piece 55 and the connecting frame 39, on one hand, the installation piece 55 can drive the second butting sleeve 38 to butt-joint switching movement, on the other hand, the second butting sleeve 38 can rotate relative to the installation piece 55, namely, the second butt-joint shaft sleeve 38 is in butt joint with the second bevel gear 36 on the other side, at the moment, the second bevel gear 36 is used as power to drive the second butt-joint shaft sleeve 38 to rotate, so that the second transmission gear 43 rotates in the opposite direction, and further the first transmission gear 27 rotates in the opposite direction, namely rotates clockwise, when the electric telescopic rod 32 touches the right side of the first swinging rod 30 again, the first swinging rod 30 can be shifted back to the original position, at the moment, the shifting rod 41 returns to the state of fig. 5, namely the first transmission gear 27 rotates anticlockwise again, by setting the extension time of the electric telescopic rod 32, when the water inlet head filter assembly is switched from the concave state to the convex state, namely the corresponding water inlet filter state is switched to the sewage discharge state, the multistage impeller device has a short-time forward and reverse rotation, so that the water flow impact acts on the water inlet head filter assembly in the convex state, and the sewage discharge effect is further improved.

Further, a guide pipe 23 and a cooling sleeve 3 sleeved on the outer wall of the driving motor 26 are arranged on the mounting seat 25, cooling pipelines which are spirally distributed are arranged on the inner wall of the cooling sleeve 3, one end of each cooling pipeline is communicated with the guide pipe 23, and the other end of each cooling pipeline is communicated with a drain pipe 24; and also includes a temperature sensor provided on the inner wall of the cooling jacket 3 for monitoring the operating temperature of the drive motor 26.

As shown in fig. 2 and 4, a spiral cooling pipeline is arranged on the inner wall of the cooling sleeve 3, when water flows through the guide pipe 23 of the pump body, the spiral cooling pipeline and the drain pipe 24, the driving motor 26 can be subjected to heat exchange to take away part of heat, and the temperature sensor on the inner wall of the cooling sleeve 3 is used for further passing through the water speed sensing unit when the temperature sensor abnormally increases in temperature;

if the water speed is unchanged, the fault of the exciting coil in the driving motor 26 where the submersible pump is located is indicated, and the single chip microcomputer controls the driving motor 26 to stop immediately;

if the water speed is reduced, the sewage discharging process of the water head filtering component and the adjustment of the water source liquid level height of the submerged pump by the posture adjusting device are sequentially carried out, if the temperature is abnormal again, the state that water is deficient or idle is indicated at the moment, the singlechip receives induction and controls the driving motor 26 to stop, and then the automatic protection mechanism of water deficiency is realized.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The detachable mounting mode is various, for example, the detachable mounting mode can be matched with the buckle through plugging, for example, the detachable mounting mode can be realized through a bolt connection mode, and the like.

The conception, specific structure, and technical effects produced by the present invention are clearly and completely described above in connection with the embodiments and the drawings so as to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention. In addition, all coupling/connection relationships mentioned herein do not refer to direct connection of the components, but rather, refer to the fact that a more optimal coupling structure may be formed by adding or subtracting coupling aids depending on the particular implementation.

The foregoing embodiments are provided for further explanation of the present invention and are not to be construed as limiting the scope of the present invention, and some insubstantial modifications and variations of the present invention, which are within the scope of the invention, will be suggested to those skilled in the art in light of the foregoing teachings.

Claims

1. The immersible pump, its characterized in that includes:

the water inlet head filtering component is used for entering the filtered water body;

the telescopic power assembly is arranged at the end part of the water inlet head filtering assembly and is used for switching the form of the water inlet head filtering assembly;

the water speed sensing unit is arranged in the water inlet head filtering assembly and is used for sensing the water inlet flow rate;

the multistage impeller device transmits the energy of the prime motor to the water body in the pump through the action of centrifugal force, so that the speed and the pressure of the water body are increased;

the control system is arranged at the rear end of the multi-stage impeller device and provides driving force for the multi-stage impeller device;

the device also comprises a posture adjusting device for adjusting the water level height of the water source of the submersible pump;

when the sensing speed of the water speed sensing unit is lower than the set standard flow speed, the control system controls the telescopic power assembly to switch the form of the water inlet head filtering assembly for quick sewage discharge, and the control system can also control the driving gesture adjusting device to operate for judging whether water is deficient or not;

an air circuit breaker and an alarm are arranged in the control system.

2. The submersible pump of claim 1, wherein: the water inlet head filtering component comprises a mounting sleeve (9), a plurality of mounting grooves (20) arranged at one end of the mounting sleeve (9), arc-shaped strips (10) rotatably arranged in each mounting groove (20) through a pin shaft, and a water inlet cover (12) arranged at the end parts of the plurality of arc-shaped strips (10); the end part of the water inlet cover (12) close to the mounting sleeve (9) is connected with a cone part (14), a filter screen (22) is arranged at the bottom of the cone part (14), and a movable sleeve (7) which is arranged at the other end of the mounting sleeve (9) and can move in a telescopic manner is arranged, one end of the movable sleeve (7) close to the mounting groove (20) is communicated with an extension sleeve (19), the extension sleeve (19) is communicated with the cone part (14), and the other end of the movable sleeve (7) is communicated with the multi-stage impeller device through a telescopic sleeve (5);

the driving wheel (15) is sleeved on the outer wall of the extension sleeve (19), and the sector teeth (21) are arranged at the end parts of each arc-shaped strip (10), the sector teeth (21) are meshed with the driving wheel (15) for transmission, and when the driving wheel (15) where the extension sleeve (19) is positioned is in telescopic movement, the extension sleeve can be used for shrinkage and expansion of the arc-shaped strips (10).

3. The submersible pump of claim 1, wherein: the telescopic power assembly comprises a mounting ring (6) fixed on the outer wall of the movable sleeve (7), a plurality of first hydraulic telescopic rods (8) are connected between the mounting ring (6) and the end part of the mounting sleeve (9), and fan blades (18) are arranged between the movable sleeve (7) and the mounting sleeve (9).

4. The submersible pump of claim 1, wherein: the multistage impeller device comprises a plurality of communicated impeller bodies (4), the head end and the tail end of each impeller body (4) are respectively connected with a telescopic sleeve (5) and a control system, and a plurality of mounting strips (2) arranged on the outer wall of each impeller body (4), one end of each mounting strip (2) is used for fixing the corresponding mounting sleeve (9), and the other end of each mounting strip (2) is fixed on the control system.

5. The submersible pump of claim 2, wherein: the water speed sensing unit comprises a driving wheel (15) arranged on the inner wall of the movable sleeve (7), a rotatable mounting frame (16) is arranged in the middle of the driving wheel (15), and an angular speed sensor (17) arranged in the middle of the driving wheel (15) is used for sensing the rotating speed of the mounting frame (16).

6. The submersible pump of claim 1, wherein: the gesture adjusting device comprises a frame body (44) and two transverse bars (45) which are transversely arranged at the bottom of the frame body (44), wherein a first slidable movable block (50) is arranged in a groove where each transverse bar (45) is positioned;

the support rods (52) are rotatably arranged at the end parts of the transverse bars (45) through pin shafts, a second slidable movable block (51) is arranged in a groove where each support rod (52) is positioned, the first movable block (50) is rotatably connected with the side wall of each support rod (52) through pin shafts, a first connecting rod (47) which is rotatably arranged on the pin shaft where the second connecting rod (48) is positioned is arranged, and the first connecting rod (47) is rotatably connected with the pin shaft where the second movable block (51) is positioned;

a limiting rod (54) is fixed on the opposite surfaces of the two second movable blocks (51) and is used for connecting the submersible pump;

and a second hydraulic telescopic rod (46) arranged in the groove where the transverse bar (45) is positioned and used for driving the first movable block (50) to move.

7. The submersible pump of claim 6, wherein: and a plurality of universal wheels (53) arranged at the bottom of the cross bar (45) and used for moving the frame body (44).

8. The automatic protection device that lacks water is applied to the immersible pump of claim 1, its characterized in that: the automatic water shortage protection device comprises a box body (1) and a first rotatable transmission gear (27) arranged in the box body (1), a mounting seat (25) arranged on the outer wall of the box body (1), wherein the first transmission gear (27) is used for driving a shaft core in the mounting seat (25) to rotate, and the shaft core is used for driving a multistage impeller device to rotate;

the mounting pieces (55) are fixed inside the box body (1) and are respectively used for rotatably mounting a first bevel gear (35), a second bevel gear (36) and a second transmission gear (43), the second transmission gear (43) is meshed with the first transmission gear (27) for transmission, and the transmission rod (33) is fixedly connected with the end part of the second transmission gear (43), and the transmission rod (33) sequentially penetrates through holes of the first bevel gear (35) and the second bevel gear (36) and extends for a certain distance;

the novel steering device is characterized by further comprising a driving motor (26) fixed on the outer wall of the box body (1), an output shaft of the driving motor (26) extends to the inside of the box body (1) and is fixedly provided with driving teeth (34), the driving teeth (34) are respectively meshed with a first bevel gear (35) and a second bevel gear (36) for transmission, and are connected with a second butting shaft sleeve (38) installed on the transmission rod (33) in a spline mode, two first butting shaft sleeves (37) are arranged on the opposite faces of the first bevel gear (35) and the mounting piece (55), the first butting shaft sleeves (37) can be matched with the second butting shaft sleeves (38), and a connecting rod poking assembly arranged in the box body (1) is used for short-term steering switching of the first transmission teeth (27).

9. The automatic water shortage protection device according to claim 8, wherein: the connecting rod stirring assembly comprises a mounting column (40) arranged on the inner wall of the box body (1), a swingable mounting rod (42) is mounted on the mounting column (40), a connecting frame (39) is fixed at the top of the mounting rod (42), two sides of the connecting frame (39) are respectively connected with a mounting piece (55) in a rotating mode through a pin shaft, and the mounting piece (55) can slide in a limiting mode in a circular groove in the middle of the second butt joint shaft sleeve (38);

the driving piece (56) is arranged at the bottom of the mounting rod (42), the driving piece (56) is in a V-shaped structure, two limiting rods (54) are arranged at the end parts of the V-shaped structure where the driving piece (56) is located, the deflector rod (41) connected to the middle part of the driving piece (56) is rotated, and when the deflector rod (41) swings, the limiting rods (54) trigger the driving piece (56) to swing;

the connecting shaft (28) is fixed in the middle of the first transmission gear (27), a first swinging strip (30) is rotatably arranged at the end part of the connecting shaft (28), a connecting strip (31) is rotatably connected to one end, far away from the connecting shaft (28), of the first swinging strip (30), and the end part, far away from the first swinging strip (30), of the connecting strip (31) is rotatably connected with the middle of a deflector rod (41) through a pin shaft;

and an extension bar (29) fixed on the connecting shaft (28), wherein an electric telescopic rod (32) is arranged at the end part of the extension bar (29) far away from the connecting shaft (28), and the extension bar is used for poking the first swinging bar (30) to deflect when the electric telescopic rod (32) stretches.

10. The automatic water shortage protection device according to claim 8, wherein: the mounting seat (25) is provided with a guide pipe (23) and a cooling sleeve (3) sleeved on the outer wall of the driving motor (26), the inner wall of the cooling sleeve (3) is provided with cooling pipelines which are spirally distributed, one end of each cooling pipeline is communicated with the guide pipe (23), and the other end of each cooling pipeline is communicated with a drain pipe (24);

the cooling device also comprises a temperature sensor arranged on the inner wall of the cooling sleeve (3) and used for monitoring the working temperature of the driving motor (26).