CN213899324U

CN213899324U - Automatic stop protection device suitable for immersible pump

Info

Publication number: CN213899324U
Application number: CN202022924238.7U
Authority: CN
Inventors: 邢红林; 邹大春; 金华; 黄明明; 杨叶青
Original assignee: Anhui Shenlanhua Color Material Co ltd
Current assignee: Anhui Shenlanhua Color Material Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-08-06
Anticipated expiration: 2030-12-09

Abstract

The utility model relates to a disclose a self-stop protection device suitable for immersible pump. Relates to the field of water pumps. The power supply control cabinet is connected with a power line of the submersible pump and controls the submersible pump to start and stop by switching on and off the power supply of the submersible pump, and the automatic stop device is connected with the power supply control cabinet through an automatic stop control line and used for disconnecting the power supply of the submersible pump through the power supply control cabinet when water in the ground pool is about to be pumped out so as to stop the operation of the submersible pump. The utility model discloses a power control cabinet switches on and breaks off the power of immersible pump to the start-up and the stop of control immersible pump, when water in the pond will be taken out futilely by the immersible pump, the automatic stop device will be automatic through the power of power control cabinet disconnection immersible pump, need not carry out manual operation, just can make immersible pump bring to rest, avoids the immersible pump to damage because of idle running.

Description

Automatic stop protection device suitable for immersible pump

Technical Field

The utility model relates to a water pump field especially relates to a self-stop protection device suitable for immersible pump.

Background

The submersible pump is a device which runs in water, and has the advantages of simple structure, low price, simple installation and use, no need of building a pump room and no special requirement on a pumping pipe, so the submersible pump has extremely wide application range. In the industrial process, some tank areas for containing chemical liquids such as acids or alkalis and areas where chemical pumps are concentrated or large-scale pumps are involved, in order to prevent leakage or overflow of sewage or chemical liquids during pipeline maintenance and cause environmental pollution, cofferdams are generally additionally arranged in the areas, a ground pool is arranged at a low-lying position, then a submersible pump is installed in the ground pool, and leaked sewage is discharged back to a water storage pool or a storage tank in time. However, the submersible pump is relatively low in power, flexible to use and limited by various conditions on site, an automatic stop protection device is not installed generally, and water in a ground pool is pumped out due to negligence of an operator and forgetting to stop the pump, so that the submersible pump idles and is damaged.

Chinese patent CN103768858A, kokai No. 2014-05-07 discloses a self-draining sewage treatment device, which comprises a sewage collector, wherein the sewage collector is divided into a sewage tank and a clean water tank by a filter screen. The clean water tank is provided with a submersible pump, a pipeline connected with the other end of the submersible pump is communicated with an external water storage tank, and a pipeline filter is arranged in the pipeline. One end of the sewage collector is connected with an external sewage drain outlet. Sewage enters into the effluent water sump in the sewage collector from the drain, shifts filterable water to the clean water sump through the filter screen, installs the immersible pump in the clean water sump, reaches the take the altitude when the water level, and the immersible pump begins to convey water to the pipeline to through the pipe-line filter secondary filter, finally convey water to external storage water tank. The invention has the advantages of small structure volume, low energy consumption, convenient maintenance and low cost. This application carries out the secondary filter in passing through the first filterable sewage in the immersible pump with the clean water reservoir, conveys the sewage through the secondary filter again and conveys in the water storage tank, has realized the purification of sewage, but lacks the automatic stop protection device of immersible pump in this application, after the water in the clean water reservoir is taken out futilely, if do not have manual operation with immersible pump shut down, the immersible pump can carry out the idle running and lead to damaging.

Disclosure of Invention

An object of the utility model is to provide a not enough to above-mentioned prior art, provide an automatic stop protection device suitable for immersible pump, can be in the pond water by the immersible pump take out dry back, the operation of automatic stop immersible pump.

The utility model provides a stop motion protection device suitable for immersible pump for carry out the stop motion protection to the immersible pump of putting into the ground pond, include and be connected with the immersible pump power cord, control the power control cabinet that the immersible pump starts and stops through the power of switch-on and disconnection immersible pump, and be connected through the stop motion control line with the power control cabinet, be used for the water in the ground pond to be managed to find time through the power of power control cabinet disconnection immersible pump so that the stop motion of immersible pump stop motion's stop motion device.

Furthermore, the power control cabinet is provided with a contactor which is used for switching on the power supply of the submersible pump during attraction and switching off the power supply of the submersible pump during release.

Furthermore, the automatic stop device comprises a flow divider, a floating plate ejector rod and a connecting rod, wherein the bottom of the flow divider is respectively provided with a water inlet and a water outlet; the travel switch contact is downward and is right opposite to the upper end of the floating plate ejector rod, the water inlet of the flow divider is connected with the water outlet of the submersible pump through a submersible pump water outlet pipe, the caliber of the water inlet is larger than that of the water outlet, and a self-stopping control line connected with the power supply control cabinet of the self-stopping device is connected to the travel switch.

Furthermore, an auxiliary water outlet pipe and a main water outlet pipe located on the upper portion of the auxiliary water outlet pipe are arranged inside the flow divider, one end of the auxiliary water outlet pipe is communicated with the water inlet, the other end of the auxiliary water outlet pipe is communicated with the water outlet, the water outlet end of the main water outlet pipe is communicated with the water outlet end of the auxiliary water outlet pipe, the water inlet end of the main water outlet pipe is separated from the water inlet end of the auxiliary water outlet pipe through a floating plate, and the caliber of the main water outlet pipe is larger than that of the auxiliary water outlet pipe.

Furthermore, the caliber of the main water outlet pipe is larger than that of the water outlet of the submersible pump.

Furthermore, the water outlet pipe of the submersible pump is a hose.

Furthermore, the middle part of the connecting rod is provided with a first baffle, the first baffle is provided with a through hole for one end of the floating plate ejector rod to pass through, the floating plate ejector rod is provided with a second baffle, and the spring is sleeved on the floating plate ejector rod, one end of the spring is abutted against the first baffle, and the other end of the spring is abutted against the second baffle.

Furthermore, an external thread is arranged on the floating plate ejector rod, and an internal thread matched with the external thread and used for adjusting the height of the second baffle on the floating plate ejector rod is arranged on the second baffle.

The utility model relates to a self-stop protection device suitable for immersible pump has following gain effect:

(1) the power supply control cabinet of the automatic stop protection device is connected with a power line of the submersible pump, the power supply of the submersible pump can be switched on and off through the power supply control cabinet, so that the starting and stopping of the submersible pump are controlled, then the automatic stop device is connected with the power supply control cabinet through an automatic stop control line, when water in a ground pool is about to be drained by the submersible pump, the automatic stop device can automatically cut off the power supply of the submersible pump through the power supply control cabinet, the submersible pump can be stopped without manual operation, and the submersible pump is prevented from being damaged due to idling;

(2) the power supply control cabinet of the automatic stop protection device is provided with a contactor which is used for switching on the power supply of the submersible pump when in suction and switching off the power supply of the submersible pump when in release. The starting and stopping of the submersible pump are controlled by the power control cabinet, and the power control cabinet is controlled by the contactor, because the power line of the submersible pump connected into the power control cabinet is connected with one end of the contactor, the power line of the power control cabinet is connected with the other end of the contactor, the power line of the power control cabinet is always connected with the power supply, when the contactor is sucked, the power line of the submersible pump connected into the power control cabinet is connected with the power line of the power control cabinet, so that the submersible pump is electrified to operate, and when the contactor is released, the power line of the submersible pump connected into the power control cabinet is disconnected with the power line of the power control cabinet, so that the submersible pump is powered off and stops operating;

(3) the automatic stop device of the automatic stop protection device comprises a flow divider, a floating plate ejector rod and a connecting rod, wherein the bottom of the flow divider is respectively provided with a water outlet and a water inlet; the travel switch contact is downward and is right opposite to the upper end of the floating plate ejector rod, the water inlet of the flow divider is connected with the water outlet of the submersible pump through the water outlet pipe of the submersible pump, the caliber of the water inlet is larger than that of the water outlet, and the automatic stop control line connected with the power supply control cabinet of the automatic stop device is connected to the travel switch. When the submersible pump normally operates, water in the ground pool sequentially passes through a water outlet of the submersible pump, a water outlet pipe of the submersible pump and a water inlet and enters the flow divider, because the caliber of the water inlet is larger than that of the water outlet, the water level in the flow divider can rise, so that a floating plate in the flow divider rises, a floating plate ejector rod connected to the upper part of the floating plate is driven to move upwards until the top end of the floating ejector rod is contacted with a travel switch contact positioned above the floating ejector rod, so that the travel switch contact is in a closed state, because an automatic stop control line connected with a power control cabinet by an automatic stop device is connected to the travel switch, the travel switch contact is in the closed state and further controls the power control cabinet to switch on the power supply of the submersible pump, the submersible pump is always in an operating state, when the water in the ground pool is about to be pumped by the submersible pump, the water outlet quantity of the submersible pump can be gradually reduced, so that no enough water enters the flow divider, the water level of the flow divider can be reduced, the floating plate can be reduced under the action of self gravity under the action of buoyancy without water, so that the ejector rod of the floating plate is driven to be reduced, the top end of the ejector rod of the floating plate is separated from a contact of the travel switch, and the travel switch with the contact in a disconnected state can control the power supply control cabinet to disconnect the power supply of the submersible pump, so that the submersible pump stops running;

(4) the automatic stop protection device is characterized in that an auxiliary water outlet pipe and a main water outlet pipe are arranged in a flow divider of the automatic stop protection device, the main water outlet pipe is positioned on the upper portion of the auxiliary water outlet pipe, one end of the auxiliary water outlet pipe is communicated with a water inlet, the other end of the auxiliary water outlet pipe is communicated with a water outlet, the water outlet end of the main water outlet pipe is communicated with the water outlet end of the auxiliary water outlet pipe, the water inlet end of the main water outlet pipe is separated from the water inlet end of the auxiliary water outlet pipe through a floating plate, and the caliber of the main water outlet pipe is larger than that of the auxiliary water outlet pipe. The water outlet pipe in the flow divider is set into the structure so as to set the initial height of the floating plate in the flow divider and set certain conditions for the rising and falling of the floating plate, the purpose of the setting is to set a safe water level for the automatic stop of the submersible pump, because the floating plate separates the main water outlet pipe from the auxiliary water outlet pipe, the floating plate has an initial height in the flow divider, the floating plate can rise only when the water level is higher than the initial height, thereby driving the top rod of the floating plate to rise to be contacted with the contact of the travel switch, when the water level is lower than the initial height, the floating plate can descend to drive the top rod of the floating plate to descend to be disconnected with the contact of the travel switch, so the initial height is the safe water level of the submersible pump, when the water in the ground pool is pumped to a certain degree, the water discharged into the flow divider by the submersible pump is lower than the initial height, the floating plate can descend to drive the top rod of the floating plate to descend to be disconnected with the contact of the travel switch, thereby stopping the submersible pump. When the shunt is completely flooded, the floating plate ejector rod is disconnected with the contact of the travel switch, the ground pool is drained at the moment, and the submersible pump idles for a period of time before the travel switch control power supply control cabinet disconnects the power supply of the submersible pump, so that the submersible pump is damaged;

(5) the automatic stop protection device is characterized in that a first baffle is arranged in the middle of a connecting rod, a through hole for one end of a floating plate ejector rod to pass through is formed in the first baffle, a second baffle is arranged on the floating plate ejector rod, and the automatic stop protection device further comprises a spring which is sleeved on the floating plate ejector rod, wherein one end of the spring is abutted to the first baffle, and the other end of the spring is abutted to the second baffle. On one hand, the spring with one end abutting against the first baffle and the other end abutting against the second baffle is sleeved on the floating plate ejector rod, so that the floating plate ejector rod is buffered when rising to be in contact with a contact of the travel switch, and the phenomenon that when the submersible pump is started, the water pressure is too high, the rising speed of the floating plate ejector rod is too high, and the contact of the travel switch is damaged by collision is avoided; on the other hand, when the floating plate ejector rod rises to contact with the contact of the travel switch, the spring sleeved on the floating plate ejector rod can be extruded by the first baffle and the second baffle so as to be compressed, and when the water level in the shunt drops, the floating plate ejector rod not only bears the self gravity, but also receives the elastic force of the compressed spring for recovering the self deformation, so that the process of disconnecting the contact of the floating plate ejector rod and the travel switch can be accelerated, and the automatic stop device has higher reaction speed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to indicate like elements.

Fig. 1 is a schematic structural view of an automatic stop protection device for a submersible pump according to an embodiment of the present invention when performing automatic stop protection of the submersible pump;

fig. 2 is the utility model discloses a structural schematic diagram during immersible pump normal operating suitable for automatic shutdown protection device of immersible pump.

In the figure: 1. a ground pool; 2. A submersible pump; 3. a submersible pump power cord; 4. a power supply control cabinet; 5. a travel switch; 6. a contact; 7. a connecting rod; 8. a flow divider; 9. a water inlet; 10. a water outlet pipe of the submersible pump; 11. a water storage tank; 12. a water outlet; 13. an auxiliary water outlet pipe; 14. a main water outlet pipe; 15. a floating plate; 16. a second baffle; 17. a spring; 18. a floating plate ejector rod; 19. an automatic stop control line.

Detailed Description

For making the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following drawings in the embodiments of the present invention will be combined, and the technical solution in the embodiments of the present invention is clearly and completely described, based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work are included in the protection scope of the present invention.

Referring to fig. 1 to 2, the present invention provides a self-stop protection device for a submersible pump, for performing self-stop protection on a submersible pump 2 placed in a ground pool 1, including a power control cabinet 4 connected to a power line 3 of the submersible pump, controlling the submersible pump 2 to start and stop by switching on and off the power of the submersible pump 2, and a self-stop device connected to the power control cabinet 4 through a self-stop control line 19, for switching off the power of the submersible pump 2 through the power control cabinet 4 when water in the ground pool 1 is to be pumped out, so as to stop the operation of the submersible pump 2. Because power switch board 4 is connected with immersible pump power cord 3, can switch on and break off the power of immersible pump 2 through power switch board 4, thereby control the start-up and the stop of immersible pump 2, be connected through automatic stop control line 19 by automatic stop device and power switch board 4 again, when the water in pond 1 will be taken out by the immersible pump, the automatic stop device will break off the power of immersible pump 2 through power switch board 4 automatically, need not carry out manual operation, just can make immersible pump 2 stall, avoid immersible pump 2 to damage because of the idle running.

In the embodiment, the power control cabinet 4 is provided with a contactor for switching on the power supply of the submersible pump 2 when in pull-in and switching off the power supply of the submersible pump 2 when in release. The starting and stopping of the submersible pump 2 are controlled by the power control cabinet 4, and are controlled by the contactor in the power control cabinet 4, because the submersible pump power line 3 connected into the power control cabinet 4 is connected at one end of the contactor, the power line of the power control cabinet 4 is connected at the other end of the contactor, the power line of the power control cabinet 4 is always connected with the power supply, when the contactor is sucked, the submersible pump power line 3 connected into the power control cabinet 4 is connected with the power line of the power control cabinet 4, so that the submersible pump 2 is powered on to operate, when the contactor is released, the submersible pump power line 3 connected into the power control cabinet 4 is disconnected with the power line of the power control cabinet 4, so that the submersible pump 2 is powered off and stops operating.

In the embodiment, the automatic stop device comprises a flow divider 8, a floating plate 15, a floating plate ejector rod 18 and a connecting rod 7, wherein the flow divider 8 is provided with a water inlet 9 and a water outlet 12 at the bottom respectively, the floating plate ejector rod 18 is arranged inside the flow divider 8, one end of the floating plate ejector rod extends into the flow divider 8 and is connected with the upper part of the floating plate 15, the other end of the floating plate ejector rod extends out of the flow divider 8, the connecting rod 7 is arranged on one side of the flow divider 8, and the top of the connecting rod 7 is provided with a travel switch 5; the contact 6 of the travel switch 5 faces downwards and is right opposite to the upper end of the floating plate ejector rod 18, the water inlet 9 of the flow divider 8 is connected with the water outlet of the submersible pump through the water outlet pipe 10 of the submersible pump, the caliber of the water inlet 9 is larger than that of the water outlet 12, and a self-stop control wire 19, which is connected with the power supply control cabinet 4, of the self-stop device is connected onto the travel switch 5. When the power supply control cabinet 4 is controlled to switch on the power supply of the submersible pump 2 by pressing a start button of the submersible pump 2 at the beginning, the submersible pump 2 normally operates, water in the ground pool 1 sequentially passes through a water outlet of the submersible pump 2, a water outlet pipe 10 of the submersible pump and a water inlet 9, enters the flow divider and is discharged into the water storage pool 11 from a water outlet 12 of the flow divider 8, the water level in the flow divider 8 rises due to the fact that the caliber of the water inlet 9 is larger than the caliber of the water outlet 12, so that a floating plate 15 in the flow divider 8 rises, a floating plate ejector rod 18 connected to the upper portion of the floating plate 15 is driven to move upwards until the top end of the floating plate ejector rod 18 is in contact with a contact 6 of a travel switch 5 positioned above the floating plate ejector rod, so that the contact 6 of the travel switch 5 is in a closed state, and because a self-stopping device 19 connected with the power supply control cabinet 4 is connected to the travel switch 5, the contact 6 of the travel switch 5 is in a closed state, so that the power supply control line 4 is controlled to switch on the submersible pump 2, at this time, the start button of the submersible pump 2 is released, and the submersible pump 2 is still in the running state.

When water in the pond 1 is about to be pumped up by the immersible pump 2, the water yield of immersible pump 2 can reduce gradually, just so do not have enough water to enter into shunt 8, the water level of shunt 8 can descend, under the effect of the buoyancy that does not have water, kickboard 15 can receive the effect of self gravity and descend, thereby drive kickboard ejector pin 18 and descend, make the top of kickboard ejector pin 18 leave travel switch 5's contact 6, travel switch 5 that contact 6 is in the off-state can control power switch cabinet 4 disconnection immersible pump 2's power, thereby make immersible pump 2 stall.

In this embodiment, an auxiliary outlet pipe 13 and a main outlet pipe 14 located at the upper portion of the auxiliary outlet pipe 13 are arranged inside the flow divider 8, one end of the auxiliary outlet pipe 13 is communicated with the water inlet 9, the other end of the auxiliary outlet pipe is communicated with the water outlet 12, the water outlet end of the main outlet pipe 14 is communicated with the water outlet end of the auxiliary outlet pipe 13, the water inlet end of the main outlet pipe 14 is separated from the water inlet end of the auxiliary outlet pipe 13 by a floating plate 15, and the aperture of the main outlet pipe 14 is larger than the aperture of the auxiliary outlet pipe 13. A main water outlet pipe 14 is arranged at a high water level in the flow divider 8, an auxiliary water outlet pipe 13 is arranged at a low water level, one end of the auxiliary water outlet pipe 13 is communicated with a water inlet 9, the other end of the auxiliary water outlet pipe 13 is communicated with a water outlet 12, the water outlet end of the main water outlet pipe 14 is communicated with the water outlet end of the auxiliary water outlet pipe 13, the water inlet end of the main water outlet pipe 14 is separated from the water inlet end of the auxiliary water outlet pipe 13 through a floating plate 15, when the submersible pump 2 normally operates, water entering the flow divider 8 through the water inlet 9 is firstly drained through the auxiliary water outlet pipe 13 at the low water level, but because the caliber of the auxiliary water outlet pipe 13 is small, when the water quantity exceeds the drainage range of the auxiliary water outlet pipe 13, the floating plate 15 is jacked to drain water from the main water outlet pipe 14 at the high water level, in the process of jacking the floating plate 15, the floating plate 15 is jacked to lift up to drive a floating plate ejector rod 18 to lift to contact 6 of the travel switch 5, the contact 6 of the travel switch 5 is in a closed state, so as to control the power supply control cabinet 4 to connect the power supply of the submersible pump 2, the submersible pump 2 is always in the running state.

When water in the ground pool 1 is about to be pumped up by the submersible pump 2, the water yield of the submersible pump 2 can be gradually reduced, the water entering the flow divider 8 is reduced, the water is directly discharged into the water storage pool 11 through the auxiliary water outlet pipe 13, the floating plate 15 can be descended under the action of self gravity under the action of floating force without water, so that the floating plate ejector rod 18 is driven to descend, the top end of the floating plate ejector rod 18 is separated from the contact 6 of the travel switch 5, the travel switch 5 with the contact 6 in a disconnected state can control the power supply control cabinet 4 to disconnect the power supply of the submersible pump 2, and the submersible pump 2 stops running. The water outlet pipe in the flow divider 8 is arranged in such a way as to set the initial height of the floating plate 15 in the flow divider 8 and set certain conditions for the rising and falling of the floating plate 15, which aim at providing a safe water level for the self-stop of the submersible pump 2, because the floating plate 15 separates the main water outlet pipe 14 from the auxiliary water outlet pipe 13, the floating plate 15 is located between the main water outlet pipe 14 and the auxiliary water outlet pipe 13, so that the floating plate 15 has an initial height in the flow divider 8, and the floating plate 15 rises only when the water level is higher than this height, thereby driving the floating plate ejector 18 to rise to contact with the contact 6 of the travel switch 5, and when the water level is lower than this height, the floating plate 15 falls to drive the floating plate ejector 18 to fall to disconnect from the contact 6 of the travel switch 5, so that this initial height is the safe water level of the submersible pump 2, and the water in the local tank 1 is pumped to a certain degree, the water that immersible pump 2 discharged in the shunt 8 is less than initial height, and kickboard 15 will descend, drive kickboard ejector pin 18 decline and travel switch 5's contact 6 disconnection, thereby make immersible pump 2 stall, prevent to have water in the shunt 8 completely after, kickboard ejector pin 18 just breaks off with travel switch 5's contact 6, by the drainage in the pond 1 this moment, immersible pump 2 just has passed through a period of idle running before travel switch 5 control power switch cabinet 4 breaks off immersible pump 2's power, cause immersible pump 2 to damage.

In this embodiment, the diameter of the main water outlet pipe 14 is larger than the diameter of the water outlet of the submersible pump 2. When the main water outlet pipe 14 and the auxiliary water outlet pipe 13 are not arranged, the water inlet 9 of the flow divider needs to be larger than the caliber of the water outlet 12, because the water inlet 9 of the flow divider 8 is connected with the water outlet of the submersible pump 2, therefore, the water inlet 9 of the flow divider 8 has the same aperture as the water outlet of the submersible pump, and the water level in the flow divider 8 rises to a certain height only if the aperture of the water outlet of the submersible pump is larger than the aperture of the water outlet 12 of the flow divider 8, so that the ejector rod 18 of the floating plate is contacted with the contact 6 of the travel switch 5, after the main water outlet pipe 14 and the auxiliary water outlet pipe 13 are arranged, the water level in the flow divider 8 can be raised to a certain height by the caliber of the water outlet of the submersible pump 2 being larger than the caliber of the auxiliary water outlet pipe 13, the reason why the aperture of the main water outlet pipe 14 is set to be larger than the aperture of the water outlet of the submersible pump 2 is to accelerate the discharge of the water in the flow divider 8 to the water storage tank 11, so that the water discharge of the flow divider 8 is smoother.

The water outlet pipe 10 of the submersible pump is a hose. The water inlet 9 of shunt 8 passes through immersible pump outlet pipe 10 with the immersible pump delivery port and is connected, so set immersible pump outlet pipe 10 into the hose, be convenient for the adjustment of shunt 8 position, because if be hard pipe, in case the pipeline sets up the back, shunt 8 and immersible pump 2's position will all can't be adjusted, this practical application of this self-stopping device of being unfavorable for very much influences the practicality of device.

In this embodiment, the middle of the connecting rod 7 is provided with a first baffle, the first baffle is provided with a through hole for one end of the floating plate ejector rod 18 to pass through, the floating plate ejector rod 18 is provided with a second baffle 16, and the connecting rod further comprises a spring 17 which is sleeved on the floating plate ejector rod 18 and has one end abutted against the first baffle and the other end abutted against the second baffle 16. On one hand, the spring 17 with one end abutting against the first baffle and the other end abutting against the second baffle 16 is sleeved on the floating plate ejector rod 18, so that the floating plate ejector rod 18 is buffered when rising to be in contact with the contact 6 of the travel switch 5, and the situation that when the submersible pump 2 is started, the water pressure is too high, the rising speed of the floating plate ejector rod 18 is too high, and the contact 6 of the travel switch 5 is damaged is prevented; on the other hand, when the floating plate ejector rod 18 rises to contact with the contact 6 of the travel switch 5, the spring 17 sleeved on the floating plate ejector rod 18 is extruded by the first baffle and the second baffle 16, so that compression is performed, when the water level in the shunt 8 drops, the floating plate ejector rod 18 is not only under the action of self gravity, but also under the action of the elastic force of the compressed spring 17 for recovering self deformation, the disconnection process of the floating plate ejector rod 18 and the contact 6 of the travel switch 5 can be accelerated, and the automatic stop device has higher reaction speed.

An external thread is arranged on the floating plate ejector rod 18, and an internal thread matched with the external thread is arranged on the second baffle plate 16 to adjust the height of the second baffle plate 16 on the floating plate ejector rod 18. Cooperate through the external screw thread on the kickboard ejector pin 18 and the internal thread on the second baffle 16, can adjust the height of second baffle 16 on kickboard ejector pin 18, thereby adjust the initial deformation size of spring 17 of cover locating on the kickboard ejector pin 18, and then when changing the contact 6 contact that rises at kickboard ejector pin 18 and travel switch 5, the buffer power size of spring 17, and when the contact 6 disconnection of kickboard ejector pin 18 decline with travel switch 5, the size of the elasticity of self deformation is resumeed to spring 17, thereby change the speed of the contact 6 disconnection of kickboard ejector pin 18 and travel switch 5, change the reaction rate that this automatic stop device made immersible pump 2 autostop promptly.

The above-described embodiments can be implemented individually or in various combinations, and such variations are within the scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. An automatic stop protection device suitable for a submersible pump, which is used for carrying out automatic stop protection on the submersible pump (2) placed in a ground pool (1), and is characterized in that: the automatic stop device comprises a power supply control cabinet (4) which is connected with a submersible pump power line (3) and controls the submersible pump (2) to start and stop by switching on and off the power supply of the submersible pump (2), and an automatic stop device which is connected with the power supply control cabinet (4) through an automatic stop control line (19) and is used for switching off the power supply of the submersible pump (2) through the power supply control cabinet (4) when the water in the ground pool (1) is about to be pumped out so as to stop the operation of the submersible pump (2).

2. The self-stop protection device for the submersible pump according to claim 1, wherein: the power control cabinet (4) is provided with a contactor used for switching on the power supply of the submersible pump (2) during suction and switching off the power supply of the submersible pump (2) during release.

3. The self-stop protection device for the submersible pump according to claim 2, wherein: the automatic stop device comprises a flow divider (8) with a water inlet (9) and a water outlet (12) respectively arranged at the bottom, a floating plate (15) arranged inside the flow divider (8), a floating plate ejector rod (18) with one end extending into the flow divider (8) and connected with the upper part of the floating plate (15) and the other end extending out of the flow divider (8), a connecting rod (7) arranged at one side of the flow divider (8), and a travel switch (5) arranged at the top of the connecting rod (7); contact (6) of travel switch (5) are down, just to kickboard ejector pin (18) upper end, water inlet (9) and the immersible pump delivery port of shunt (8) are passed through immersible pump outlet pipe (10) and are connected, just the bore of water inlet (9) is greater than the bore of delivery port (12), automatic stop control line (19) that automatic stop device and power switch board (4) are connected on travel switch (5).

4. The self-stop protection device for the submersible pump according to claim 3, wherein: the flow divider (8) is internally provided with an auxiliary outlet pipe (13) and a main outlet pipe (14) positioned on the upper part of the auxiliary outlet pipe (13), one end of the auxiliary outlet pipe (13) is communicated with the water inlet (9), the other end of the auxiliary outlet pipe is communicated with the water outlet (12), the water outlet end of the main outlet pipe (14) is communicated with the water outlet end of the auxiliary outlet pipe (13), the water inlet end of the main outlet pipe (14) is separated from the water inlet end of the auxiliary outlet pipe (13) through a floating plate (15), and the caliber of the main outlet pipe (14) is larger than that of the auxiliary outlet pipe (13).

5. The self-stop protection device for the submersible pump according to claim 4, wherein: the caliber of the main water outlet pipe (14) is larger than that of the water outlet of the submersible pump.

6. The self-stop protection device for the submersible pump according to claim 3, wherein: the water outlet pipe (10) of the submersible pump is a hose.

7. The self-stop protection device for the submersible pump according to claim 3, wherein: the connecting rod (7) middle part is equipped with first baffle, is equipped with the through-hole that supplies kickboard ejector pin (18) one end to pass on the first baffle, be equipped with second baffle (16) on kickboard ejector pin (18), still including the cover locate spring (17) that one end butt in first baffle, the other end butt in second baffle (16) on kickboard ejector pin (18).

8. The self-stop protection device for the submersible pump according to claim 7, wherein: an external thread is arranged on the floating plate ejector rod (18), and an internal thread which is matched with the external thread and used for adjusting the height of the second baffle plate (16) on the floating plate ejector rod (18) is arranged on the second baffle plate (16).