CN101328898A

CN101328898A - Submersible pump fluid level control system

Info

Publication number: CN101328898A
Application number: CNA2008101071634A
Authority: CN
Inventors: 大卫·波坦
Original assignee: ZENIT PUMPS (SUZHOU) CO Ltd
Current assignee: ZENIT PUMPS (SUZHOU) CO Ltd
Priority date: 2008-07-31
Filing date: 2008-07-31
Publication date: 2008-12-24

Abstract

The invention discloses a system for controlling liquid level of a submerged pump, comprising an outer shell, a switch controller, a control component and an inductor, wherein the control component is connected with the switch controller, the inductor is connected with the switch controller, the inductor is deformable, and the control component is positioned inside the outer shell and slides along a longitudinal direction. The control component is provided with an inductive element which has a non-working position and a working position, when the inductive element is at the non-working position, the inductive element is close to the bottom surface of the outer shell, and when the inductive element is at the working position, the inductive element is kept away from the bottom surface. The control component is moved along a longitudinal axis to realize triggering and stop triggering to control the submerged pump by the switch. The submerged pump has more compact structure and smarter size; thereby the system can be used in a narrow space. Since the inductor has deformation instead of relative movement when inducting the change of a liquid level so that the method is more likely to prevent other accidental blockage.

Description

Submersible pump fluid level control system

Technical field

The present invention relates to a kind of submersible pump fluid level control system that is used for emptying wet-well, basement, groove jar or like environment sewage.

Background technique

In the submersible pump fluid level control system of prior art, has a frame in the outside of submersible pump, inside has a Seal cage, motor for submerged pump is housed in Seal cage, this motor is used for drives impeller rotation, and the rotation of impeller makes the sewage in the environment be sucked from the bottom water inlet of pump and discharges.There is an on-off controller that is used for the control of pump running in this system, this on-off controller uses the autocontrol method of a key switch control, in autocontrol method, use a float switch system, in this float switch system, float stretches out from frame with one and the free end of rotating lever links to each other, rotating lever is used to control key switch, lever is positioned at the top of frame inside, be provided with the rocker bar bearing of lever on frame, lever is around hinge axis.Float along with the height of liquid level can fluctuate, drives lever and rotates and then drive key switch.Specifically, when the liquid level in the pump rises, the float chamber full of liquid, the promotion float rises, and then the rotation by lever triggers key switch, and then on-off controller control motor is with the running of control pump, when liquid level is lower than certain level, water pump can automatic disable motor.This on-off controller also has manual control mode, in hand operated control method, has individual controlling rod to stretch out from the side of pump shell body, just can trigger switch by rotating this controlling rod.Large-sized rotating lever-the Floater Structure of the existing common employing of float switch system, this system is difficult to be used in narrow environment like this, simultaneously, the reliability of this system is lower, one unexpected rotate or float chamber in have other hard thing can make the float stop motion.In existing hand operated control method, the Security the when user uses is lower, because controlling rod is external of pump shell, then this controlling rod is bumped or misoperation easily by mistake, thereby the running of water pump is affected.

Summary of the invention

The purpose of this invention is to provide a kind of submersible pump fluid level control system, use the submersible pump of this control system can be operated in the narrow environment, reliability is higher during work, and the user when manually controlling Security higher.

For achieving the above object, the technical solution used in the present invention is: a kind of submersible pump fluid level control system, comprise the on-off controller that is used to control submersible pump and opens and close, the inductor that is used to detect the wastewater level height, described inductor is connected with described on-off controller, described inductor comprises deformable float, when described float deformed, described inductor drove the unlatching of described on-off controller with the control submersible pump.

A kind of submersible pump fluid level control system, comprise frame, be used to control on-off controller, the control piece that submersible pump leaves and closes, described control piece is connected with described on-off controller, described control piece has sense cell, described sense cell has off-position and working position, when described sense cell was in off-position, described sense cell was near the bottom surface of described frame; When described sense cell was in the working position, described sense cell was away from described bottom surface, and described control piece has the active part that is used to drive described on-off controller on the position relative with described sense cell.

The present invention compared with prior art has following advantage: adopt the control that realizes submersible pump along the system that the longitudinal axis slides, control piece can be realized triggering and stopping triggering along longitudinal axis axial motion, comes switch control submersible pump.Use the submersible pump of this control system structurally compacter, smaller and more exquisite on the size, so this system can be applicable in the narrow space.Because inductor when experiencing liquid level change, deforms and does not have relative motion, thereby makes this method more can prevent other unexpected occlusive effects.And the hand switch controlling Design of this submersible pump is in the inside of pump shell body, and the outside has a safety cover to protect, to prevent unnecessary trigger switch.Because this specific character makes this submersible pump that higher Security be arranged.

Description of drawings

Accompanying drawing 1 is a complete section figure who uses the water pump of control system of the present invention;

Accompanying drawing 2 is the sectional drawings when first working position of the water pump shown in Fig. 1;

Accompanying drawing 3 is the sectional drawings when second working position of the water pump shown in Fig. 2;

Accompanying drawing 4 is the sectional drawings when the 3rd working position of the water pump shown in Fig. 2;

Accompanying drawing 5 is the sectional drawings when the 4th working position of the water pump shown in Fig. 2;

Accompanying drawing 6 is water pump section principle schematic when being positioned at first working position;

Accompanying drawing 7 is water pump section principle schematic when being positioned at second working position;

Accompanying drawing 8 is that a water pump is in the float downward perspective view of subdivision of closed condition;

Accompanying drawing 9 is that a water pump is in the float downward perspective view of subdivision of opening state.

Embodiment

Further set forth concrete structure of the present invention and working procedure below in conjunction with accompanying drawing.

Referring to submersible pump fluid level control system shown in Figure 1, its role is to pump the sewage in deep-well, basement, groove jar or the like environment.Use the water pump 1 of this control system externally to have frame 20, frame 20 is cylindrical bodys of a hollow, has a central axis Z1.Handle 21 is installed on the shell 20, is used to mention water pump 1 or carrying water pump 1.

Filter screen 22 is installed on the water pump 1, and this filter screen 22 is contained in the below of frame 20 by a supporting part, because filter screen 22 is installed in water pump 1 bottom, it can be used for supporting whole water pump 1.There is the identical hole of a lot of sizes to be used for filtering the big solid particle of external agency above the filter screen 22.

Filter screen 22 comprises coarse filtration net 23, thin filter screen 24, and coarse filtration net 23 direct and outside ground contact, and coarse filtration net 23 defines first basal plane 101 and first and sucks limit position LP1, as Fig. 1 and shown in Figure 5 in use.Coarse filtration net 23 is by first latch 7 being installed on the thin filter screen 24 by activity.Thin filter screen 24 is fixed on the dunnage 71 by second latch 70, and the position of thin filter screen 24 is positioned at the top of coarse filtration net 23.Coarse filtration net 23 and thin filter screen 24 are to be installed in abreast on the water pump 1.Coarse filtration net 23 can be removed from thin filter screen 24, and thin filter screen 24 has defined second basal plane 102 in use, has also determined second to suck limit position LP2, and as Fig. 1 and shown in Figure 5, the second suction limit position LP2 is littler than the first suction limit position LP1.

Have inwall 11 on the water pump 1, it is the part of frame 20, and inwall 11 forms the watertight chamber 3 of the motor 2 that is used to pack into.Motor 2 comprises a stator 4 and a rotor 5, and rotor 5 has rotor shaft 6, and impeller 8 is installed in an end of rotor shaft 6, and simultaneously impeller 8 is arranged in the suction chamber 12 of water pump 1, and suction chamber 12 is positioned on the ground level 9 of water pump and under the basic side 13.In addition, suction chamber 12 is connected with passage 28, and passage 28 and outlet conduit 25 are connected, and the central axis of outlet conduit 25 is parallel with Z1.Suction chamber 12 is used for sucking sewage 10, and sewage 10 is discharged from outlet conduit 25 through passage 28.

Water pump 1 also has the control chamber 26 of a long taper, and the central axis and the Z1 of this control chamber 26 also are parallel to each other.Control chamber 26 is positioned at a side of roof face 32, and there is a pad 134 its upper end portion, and the underpart is connecting deformable float 29.

Be useful on the on-off controller of opening and closing 40 of control of pump 1 in the water pump 1, on-off controller 40 is close to roof face 32, and is positioned at the outside of pad 134, and on-off controller 40 has button 41.

Individual control system 73 is arranged on the water pump 1, and this control system 73 is used for control switch controller 40 automatic or manual switch control of pump 1.

Have the inductor 74 that is used to detect the liquid level level in the control system 73, inductor 74 comprises deformable float 29.The downside of float 29 has pressure chamber 34, and pressure chamber 34 is positioned at the below of sensitive surface 100, and is positioned at the top of water pump 1 lower wall 63.Pressure chamber 34 is connected by the suction chamber 12 and the passage 28 of a through hole 27 and water pump.

Control system 73 also has roundel parts 37, control piece 39, roundel parts 37 are connected with float 29, control piece 39 is shaft-like, connecting on-off controller 40 and roundel parts 37, this control piece 39 can move up and down along another central axis Z2 parallel with central axis Z1, as shown in Figure 1.Control piece 39 is made up of two sections bodies of rod, promptly is positioned at the body of rod 38 and the superposed body of rod 42 of bottom.These two bodies of rod are separated from each other, lay respectively in pressure chamber 34 and the control chamber 26.The body of rod 38 that is positioned at the bottom can be used for the switch of manual control of pump 1.The body of rod 38 that is positioned at the bottom has a prismatic shaft 75, and an end of prismatic shaft 75 has active part 54, and the other end has parts 55.When wherein active part 54 uses and float 29 join, and relative with plane 9 during parts 55 work.The sense cell 57 that has a circular bar shape on the parts 55, this sense cell 57 stretches out thin filter screen 24, to small part between coarse filtration net 23 and thin filter screen 24, and have the groove (not having demonstration figure on) that the head for pointed tool inserts.

Control system 73 also has supporter 58, and this supporter 58 is used to make the body of rod 38 that is positioned at the bottom stably to be in the working position of opening water pump 1 or 1 the off-position of switching off the pump.An elastic component 59 is arranged in the supporter 58, and this elastic component 59 is enclosed within on the end 60 of the body of rod 38, is used for making the body of rod 38 axially to move up and down along it.Elastic component 59 is positioned at passage, and this passage shows in the accompanying drawings, and this passage is between the surface 65 of the surface 201 of lower wall 63 and filter screen 24 carefully.

The body of rod 38 can endwisely slip along it in passage, offer three in the passage and spaced be trapezoidal groove, have three raised lines that match with groove 68 that stretch out on the end 60 of the body of rod 38, when water pump 1 was in off-position, raised line 68 was inserted in the groove 67.

Dunnage 71 is positioned at passage, and between the surface 65 of surface 201 and thin filter screen 24.Dunnage 71 has coupling face 76, and when the position of three raised lines 68 above the body of rod 38 is raised to reached coupling face 76 places, elastic component 59 was in compressive state, and this moment, water pump 1 was in running order following.When water pump 1 was in running order, raised line 68 was separated with groove, and raised line 68 is raised to coupling face 76 places.

Also have a thrust on the water pump 1, show on the figure, it is positioned on the lower wall 63 sides relative with surface 201, contacts with prismatic shaft 75.The design of this thrust is to play a positioning action with manual mode when the upperpush rod body 38, to prevent owing to the too fast water pump 1 that damages that overexerts.

On the underpart 43 of the superposed body of rod 42 handle 44 is arranged, this handle 44 is used for inserting the pedestal 45 on the roundel parts 37.Have one on the upper end portion 46 of the body of rod 42 and be the step-like active face of hemisphere 47, this active face 47 is used for the lower surface 50 of when liquid level the rises lever in the conflict control chamber 26 48.Lever 48 is S-shaped parts, can be along bearing pin 49 rotation, and this bearing pin 49 is sleeved on the upper component 51 on the inwall 11.Lever 48 has upper surface 52 on the position relative with lower surface 50, extend a projection bar 53 on the upper surface 52.When the body of rod 42 rose, these projection bar 53 meetings and button 41 contacted, and trigger switch controller 40 is shown in Fig. 6 and 7.The body of rod 42 can move between working position and off-position, thus the Kai Heguan of control of pump 1 correspondingly, and when the body of rod 42 was in off-position, as shown in Figure 6, the projection bar 53 on the lever 48 was separated with button 41; When the body of rod 42 was in the working position, as shown in Figure 7, projection bar 53 on the lever 48 and button 41 offseted.

Detailed being described below of switch control mode of water pump 1, referring to Fig. 2-9:

At first analyze the pattern of the automatic control switch of water pump 1, water pump 1 is in deep-well, basement or the groove jar, and at this moment, coarse filtration net 23 is on the plane 9.

At first, when the liquid level of sewage 10 did not also reach ground level 9, water pump 1 was in closed condition, and the body of rod 42 also is in off working state.

Referring to Fig. 2, water pump 1 is in the working state that A1 indicates, and at this moment the liquid level of sewage 10 arrives water level L1; Under the A1 state, liquid 10 is full of suction chamber 12, and has occupied in the partial pressure chamber 34.The body of rod 42 still is under the off working state.

Referring to Fig. 3, water pump 1 is in the working state that A2 indicates, and the liquid level of sewage 10 rising at this moment arrives the L2 place.In the A2 working state, sewage 10 has been full of in the pressure chamber 34, and touches sensitive surface 100.At this moment the body of rod 42 still is in off working state.

The liquid level of sewage 10 progressively continues to rise, and L2 ' position amount has risen again.In this process, sewage 10 is full of pressure chamber 34, and along with the lasting rising of liquid level, sewage 10 can have the certain pressure of float 29 generations of sensitive surface 100 to the bottom.Along with the rising of pressure, float 29 is heaved along the F1 direction, promotes the body of rod 42 and rises.And along with the rising of the body of rod 42, the active face 47 of the body of rod 42 upper ends can promote lever 48 along the rotation of F2 direction, makes that projection bar 53 and the button 41 on the lever 48 offsets, with trigger switch controller 40, this moment, the body of rod 42 was in the working position, referring to Fig. 6 and shown in Figure 7.

On-off controller 40 control of pump 1 are started working, and impeller 8 begins rotation.Sewage 10 in the turning handle suction chamber 12 of impeller 8 discharges from outlet conduit 25 through passage 28 from suction port.

Referring to Fig. 4, water pump 1 is in the A3 working state, and at this moment the liquid level of sewage 10 is reduced to the L3 place; Under the A3 state, still be full of sewage 10 in the suction chamber 12, and be full of in the pressure chamber 34 by through hole 27, at this moment the body of rod 42 still is positioned at the working position.At this moment impeller 8 is also being made high speed rotating, and sewage 10 is discharged from outlet conduit 25, and the liquid level along with sewage 10 gradually constantly reduces, and arrives the LP1 position up to it, as shown in Figure 5.

In Fig. 5, water pump 1 is in the A4 working state, and at this moment sewage 10 12 is evacuated from suction chamber.Under the A4 state, impeller 8 is no longer worked, i.e. no longer convection cell generation effect, and pressure falls after rise, and corresponding float 29 also becomes normal state again from the state that pressurized is heaved.And along with the recovery of float 29, the body of rod 42 also descends thereupon and is in off-position, and projection bar 53 and button 41 on the lever 48 are separated, along with sewage 10 is extracted out pressure chamber 34 by impeller 8, water pump 1 also can keep operating a period of time, is found time completely to discharge up to the sewage 10 of outside.

When water pump 1 is in manual control, can adopt two kinds of manual modes.In first kind of mode, when reaching LP1, the liquid level of sewage 10 starts water pump 1; In the second way, when reaching LP2, the liquid level of sewage 10 starts water pump 1.

When adopting first kind of mode, need with a special instrument, as a screw-driver, not shown in the figures, this instrument can stretch into by the hole on the coarse filtration net 23 78, as shown in Figure 8, in the groove of the body of rod 38 lower ends was injected at the cutter top, the head of cutter was by acting on groove with the rotation body of rod 38, by elastic component 59 body of rod 38 is moved up, promote float 29, be pulled to the top fully, see shown in Figure 9 up to raised line 68 and prismatic shaft 75.In this position, the active part 54 that is positioned at the bottom body of rod 38 is jack-up float 29 fully, and being promoted the superposed body of rod 42 by jack-up, float 29 moves to the working position, then the active face 47 of the body of rod 42 upper ends can be rotated along the F2 direction by promotion lever 48, make projection bar 53 and button 41 on the lever 48 offset, with trigger switch controller 40.When switching off the pump 1, this instrument can inject swingle body 38 in the groove once more, makes the body of rod 38 descend, and drives the superposed body of rod 42 and moves to off-position.Unnecessary misoperation is avoided in Security when this mode of operation has guaranteed that the user uses.

When adopting second way manual operations, need lift water pump 1, coarse filtration net 23 is removed from thin filter screen 24, then water pump 1 be lain on the ground level 9, this moment, the body of rod 38 directly contacted with ground level 9 by parts 55.Rely on the deadweight of water pump 1 itself to make elastic component 59 that compressive deformations take place, elastic component 59 drives the bodies of rod 38 and rises, and drives the superposed body of rod 42 and also rises and come driving switch controller 40, and water pump 1 is started working.When needs switch off the pump 1 the time, as long as water pump 1 is mentioned from ground level 9.Under normal circumstances, coarse filtration net 23 is housed, can gives the body of rod 38 1 well protections, bump to prevent mistake.

To sum up, above-mentioned automatic or manual control mode is to adopt along the system that the longitudinal axis slides to realize that this control system has a shaft-like part, is positioned at pump case, this shaft-like part can be realized triggering and stopping triggering along longitudinal axis axial motion, comes switch control submersible pump.This submersible pump is structurally compacter, and is smaller and more exquisite on the size, so this system can be applicable in the narrow space.Owing to during the liquid level of the sensitive surface 100 on the float 29 in induction pressure chamber 34, do not have relative motion, thereby use this method more can prevent other unexpected occlusive effects.And the hand switch controlling Design of this submersible pump is in the inside of water pump outer cover, and it is that coarse filtration net 23 is protected that there is a safety cover outside, to prevent unnecessary trigger switch.Because this specific character makes this submersible pump that higher Security be arranged.In the time will contacting touch switch, can put in by the hole on the safety cover with a special tool(s) and promote this shaft-like part arrival triggering working position with this shaft-like part.Another manual triggers mode is by removing coarse filtration net 23 water pump to be placed on the ground, allows impeller turn to ground, and shaft-like part can be controlled easily, like this, water pump can be controlled out and close very easily.

Claims

1, a kind of submersible pump fluid level control system, comprise the on-off controller (40) that is used to control submersible pump and opens and close, the inductor that is used to detect sewage (10) water level height, described inductor is connected with described on-off controller (40), it is characterized in that: described inductor comprises deformable float (29), described float (29) is when deforming, and described inductor drives the unlatching of described on-off controller (40) with the control submersible pump.

2, submersible pump fluid level control system according to claim 1 is characterized in that: described float (29) inserts in the pressure chamber (34), and the top of described pressure chamber (34) is sealed by the sensitive surface of described float (29) (100).

3, submersible pump fluid level control system according to claim 2, it is characterized in that: this system also comprises impeller (8), described impeller (8) is positioned at the suction chamber (12) that is used to suck sewage (10), described pressure chamber (34) has through hole (27), and described through hole (27) is communicated with described pressure chamber (34) and described suction chamber (12).

4, submersible pump fluid level control system according to claim 3 is characterized in that: described through hole (27) is positioned at described pressure chamber (34) and goes up an end relative with described float (29).

5, submersible pump fluid level control system according to claim 4, it is characterized in that: the described inductor that is used to detect sewage (10) water level height also comprises connection set, described connection set comprises the body of rod (42), be used to support the roundel parts (37) of the described body of rod (42), the described body of rod (42) is connected with described float (29), described roundel parts (37) are fitted together with described float (29), described connection set connects described float (29) and described on-off controller (40), the described body of rod (42) is positioned at described control chamber (26), and the described body of rod (42) is positioned between described float (29) and the described on-off controller (40).

6, submersible pump fluid level control system according to claim 5 is characterized in that: the described body of rod (42) has active face (47), and described active face (47) contacts with described on-off controller (40), is used to control the Kai Heguan of submersible pump.

7, submersible pump fluid level control system according to claim 6, it is characterized in that: described connection set also comprises the lever (48) that is used to control described on-off controller (40), described lever (48) is positioned between the described body of rod (42) and the described on-off controller (40), and described on-off controller (40) is the push-button switch controller.

8, submersible pump fluid level control system according to claim 7, it is characterized in that: this system also comprises frame (20), described on-off controller (40) and described inductor all are contained in the described frame (20), this system also comprises the control piece (39) that is used to control described on-off controller (40), described control piece (39) has sense cell (57), described sense cell (57) has off-position and working position, when described sense cell (57) when being in off-position, described sense cell (57) is near the bottom surface (101) of described frame (20); When described sense cell (57) when being in the working position, described sense cell (57) is away from described bottom surface (101).

9, submersible pump fluid level control system according to claim 8, it is characterized in that: described control piece (39) has the active part (54) that is used to drive described on-off controller (40) on the position relative with described sense cell (57), and described control piece (39) has on the position relative with described sense cell (57) and is used for contacting so that the active part (54) that described float (29) deforms with described sensitive surface (100).

10, submersible pump fluid level control system according to claim 9, it is characterized in that: this system also comprises filter screen (22), described filter screen (22) is connected with described frame (20), has first basal plane (101) and second basal plane (102) on the described filter screen (22).

11, submersible pump fluid level control system according to claim 10, it is characterized in that: described filter screen (22) comprises coarse filtration net (23), thin filter screen (24), described coarse filtration net (23) removably connects mutually with described thin filter screen (24), described thin filter screen (24) is than the inside of the more close described frame of described coarse filtration net (23) (20), when described sense cell (57) when being in the working position, described sense cell (57) and described second basal plane (102) coplane, when described sense cell (57) when being in the working position, described sense cell (57) stretches out described second basal plane (102).

12, submersible pump fluid level control system according to claim 11, it is characterized in that: have the groove that is used for for the head insertion of pointed tool on the described sense cell (57), this pointed tool is used to control described sense cell (57) to be changed between off-position and working position.

13, submersible pump fluid level control system according to claim 12, it is characterized in that: this system also comprises and is used to make described sense cell (57) or described control piece (39) stably to be in the supporter (58) of working position or off-position, described supporter (58) is the supporting way of clamping-type, described supporter (58) has passage, and described control piece (39) can be located in the described passage axially slidably along it.

14, submersible pump fluid level control system according to claim 13, it is characterized in that: be provided with coupling face (76) in the described passage, offer a plurality of grooves (67) in the described passage, has the raised line (68) that a plurality of grooves that stretch out and described (67) match on the described control piece (39), when described sense cell (57) when being in off-position, described raised line (68) is inserted in the described groove (67), when described sense cell (57) when being in the working position, described raised line (68) is positioned at described coupling face (76) and locates.

15, submersible pump fluid level control system according to claim 14 is characterized in that: described supporter (58) comprises that being used to promote described sense cell (57) makes its institute's elastic component (59) away from described on-off controller (40).

16, a kind of submersible pump fluid level control system, comprise frame (20), be used to control on-off controller (40), the control piece (39) that submersible pump leaves and closes, described control piece (39) is connected with described on-off controller (40), it is characterized in that: described control piece (39) has sense cell (57), described sense cell (57) has off-position and working position, when described sense cell (57) when being in off-position, described sense cell (57) is near the bottom surface (101) of described frame (20); When described sense cell (57) when being in the working position, described sense cell (57) is away from described bottom surface (101), and described control piece (39) has the active part (54) that is used to drive described on-off controller (40) on the position relative with described sense cell (57).

17, submersible pump fluid level control system according to claim 16, it is characterized in that: this system also comprises filter screen (22), described filter screen (22) is connected with described frame (20), have first basal plane (101) and second basal plane (102) on the described filter screen (22), described filter screen (22) comprises coarse filtration net (23), thin filter screen (24), described coarse filtration net (23) removably connects mutually with described thin filter screen (24), and described thin filter screen (24) is than the inside of the more close described frame of described coarse filtration net (23) (20).

18, submersible pump fluid level control system according to claim 17, it is characterized in that: when described sense cell (57) when being in the working position, described sense cell (57) and described second basal plane (102) coplane, when described sense cell (57) when being in off-position, described sense cell (57) stretches out described second basal plane (102).

19, submersible pump fluid level control system according to claim 18, it is characterized in that: have the groove that is used for for the head insertion of pointed tool on the described sense cell (57), this pointed tool is used to control described sense cell (57) to be changed between off-position and working position, this system also comprises and is used to make described sense cell (57) or described control piece (39) stably to be in the supporter (58) of working position or off-position, described supporter (58) is the supporting way of clamping-type, described supporter (58) has passage, and described control piece (39) can be located in the described passage axially slidably along it.

20, submersible pump fluid level control system according to claim 19, it is characterized in that: be provided with coupling face (76) in the described passage, offer a plurality of grooves (67) in the passage, has the raised line (68) that a plurality of grooves that stretch out and described (67) match on the described control piece (39), when described sense cell (57) when being in off-position, described raised line (68) is inserted in the described groove (67), when described sense cell (57) when being in the working position, described raised line (68) is positioned at described coupling face (76) and locates.

21, submersible pump fluid level control system according to claim 20, it is characterized in that: described supporter (58) comprises that being used to promote described sense cell (57) makes its elastic component away from described on-off controller (40) (59), and described on-off controller (40) is the push-button switch controller.