CN213775667U - Full-automatic water pumping equipment with automatic water level and elevation control - Google Patents

Abstract

The utility model relates to a water level elevation automatic control full-automatic pumping device, which comprises a control box placed on the ground, wherein the control box is close to the well mouth of a well, and a pumping device and a water level monitoring device are connected on the control box; the water pumping device comprises a water drainage pipe extending into the water well, and a water pump is fixedly arranged at the bottom of the water drainage pipe; the water level monitoring device comprises a heavy hammer limit switch arranged at the top of the well, the bottom of the heavy hammer limit switch is connected with a measuring rope, the bottom of the measuring rope is provided with a balancing weight capable of floating on the water surface, and a circuit which controls the opening and closing of the heavy hammer limit switch to control the water pump to work and automatically pump water is arranged between the heavy hammer limit switch and the water pump and pushes the balancing weight to control the heavy hammer limit switch through the buoyancy of the water in the well. The utility model discloses have the effect of the idle running of water level in the accurate control well, reduction water pump under the less condition of water.

Description

Full-automatic water pumping equipment with automatic water level and elevation control

Technical Field

The utility model belongs to the technical field of subway drainage engineering technique and specifically relates to a full-automatic pumping equipment of water level elevation automatic control is related to.

Background

At present, in the tunnel construction process, especially subway underground excavation tunnel engineering often meets the country rock poor stability, and the sand bed rich water is abundant. In the process of mine method construction, the amount of underground water is large, the phenomena of water gushing and sand gushing possibly occur on the tunnel face, construction cannot be carried out, and the construction period is seriously influenced.

The drainage system of the tunnel is an important link in the tunnel construction, normal use and safe operation process. In the construction process of domestic and foreign tunnels and underground engineering, except water generated in the construction process, the tunnel is often subjected to the conditions of underground water, greening water seepage and the like. Water in the tunnel needs to be discharged outside the tunnel in time to ensure normal construction in the tunnel, and open trench water collecting wells are generally adopted for drainage.

When pumping water, the water pump is put into the water well, so that water in the water well pumps water outwards.

SUMMERY OF THE UTILITY MODEL

In order to accurately control the water level in the well, reduce the water pump idle running under the condition that water is few, the utility model aims at providing a full-automatic pumping equipment of water level elevation automatic control.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a water level elevation automatic control full-automatic pumping device comprises a control box placed on the ground, wherein the control box is close to a well mouth of a well, and a pumping device and a water level monitoring device are connected to the control box; the water pumping device comprises a water drainage pipe extending into the water well, and a water pump is fixedly arranged at the bottom of the water drainage pipe; the water level monitoring device comprises a heavy hammer limit switch arranged at the top of the well, the bottom of the heavy hammer limit switch is connected with a measuring rope, the bottom of the measuring rope is provided with a balancing weight capable of floating on the water surface, and a circuit which controls the opening and closing of the heavy hammer limit switch to control the water pump to work and automatically pump water is arranged between the heavy hammer limit switch and the water pump and pushes the balancing weight to control the heavy hammer limit switch through the buoyancy of the water in the well.

Through adopting above-mentioned technical scheme, the surface of water in the well is crossed lowly, measure the rope under the action of gravity of balancing weight, when making the measuring rope belong to vertical state, control weight limit switch disconnection, the water pump is out of work, when the water in the well is too big, the balancing weight floats on the surface of water, the rope is not in vertical state, control weight limit switch is closed, control water pump is automatic outwards to draw water to can the accurate control water level in the well, reduce the idle running of water pump under the condition of lack of water.

The present invention may be further configured in a preferred embodiment as: the automatic circuit of drawing water includes the water pump that is coupled with power VCC, and the parallel connection has delay time relay KT1 on the water pump, and delay time relay KT1 is coupled with weight limit switch series connection, and the both ends parallel connection of weight limit switch and delay time relay KT1 have relay KM2 and delay time relay KT 1's normally open contact, and the normally open contact who has relay KM2 is coupled in series connection between water pump and the power.

Through adopting above-mentioned technical scheme, when the water in the well is more, weight limit switch is closed, delay time relay KT gets electric, delay a period of time back, control delay time relay KT 1's normally open contact is closed, make relay KM2 get electric, control relay KM 2's normally open contact is closed, and then the control water pump is taken water, delay time relay KT1 delay a period of time is closed, can prevent that the surface of water from rocking too much or the too fast meeting of well return water speed can lead to the frequent action of weight limit switch, prevent that weight limit switch from damaging.

The present invention may be further configured in a preferred embodiment as: the water pumping device further comprises a winch fixed on the ground, a retractable pull rope is fixedly arranged on an output shaft of the winch, and one end of the pull rope, far away from the winch, is fixedly connected to the water pump.

Through adopting above-mentioned technical scheme, the hoist engine unreels to the stay cord, and the stay cord drives the water pump and moves to the well, can guarantee that the water pump can take out the water in the well according to the position of the water yield down regulation water pump in the well.

The present invention may be further configured in a preferred embodiment as: the bottom of the water pump is provided with a control module for controlling the winch to stop moving so as to prevent the water pump from being damaged; the control module comprises a detection circuit, the detection circuit comprises a distance sensor arranged at the bottom of the water pump, and the distance sensor is used for detecting the distance value from the water pump to the bottom of the well in real time and outputting the detected distance value; the comparison circuit is connected with the detection circuit, receives the distance value output by the detection circuit, compares the received distance value with a preset value, and outputs a high-level signal when the distance value is smaller than the preset value; the switch circuit is connected with the comparison circuit, receives the high-level signal output by the comparison circuit and outputs an execution signal; and the execution circuit is connected with the switching circuit and receives the execution signal of the switching circuit, and controls the winch to stop working when receiving the execution signal.

Through adopting above-mentioned technical scheme, distance sensor real-time detection water pump is to submarine distance to give comparison circuit with the distance value transmission that detects, comparison circuit compares distance value and default, when distance value is less than the default, proves the position that the water pump is close to the shaft bottom promptly, and control hoist engine stop work prevents promptly that the stay cord from driving the water pump and stopping downstream, thereby prevents that the water pump from being close to submarine damage.

The present invention may be further configured in a preferred embodiment as: the bottom of weight limit switch is connected with the receiver, and the top of receiver articulates there is a connecting rod, and the one end that the receiver was kept away from to the connecting rod articulates on weight limit switch, has set firmly the contactor on the weight limit switch, and the measuring rope is connected in the receiver.

Through adopting above-mentioned technical scheme, cross lowly when the surface of water, measure the rope under the action of gravity of balancing weight, when making to measure the rope and belong to vertical state, the connecting rod can't contact with the contactor, and when the water in the well was too big, the balancing weight floated on the surface of water, and the rope is not in vertical state, and the connecting rod can contact with the contactor to realize opening and closing of weight limit switch.

The present invention may be further configured in a preferred embodiment as: and a spring positioned between the contactor and the connecting rod is fixedly arranged on the heavy hammer limit switch, one end of the spring is fixed on the heavy hammer limit switch, and the other end of the spring is fixedly connected to the connecting rod.

Through adopting above-mentioned technical scheme, the spring has pulling force to the connecting rod, and after the balancing weight disappeared to the gravity of stay cord, the elasticity of spring made the connecting rod to the contactor motion.

The present invention may be further configured in a preferred embodiment as: the storage box is fixedly provided with a motor, an output shaft of the motor extends into the storage box, and the end part of the measuring rope is fixedly connected to the output shaft of the motor.

Through adopting above-mentioned technical scheme, the control motor just reverses, can control the vertical motion of measuring rope, not only can measure the water level in the sump, can also be convenient for take out the water in the basin.

The present invention may be further configured in a preferred embodiment as: the bottom of the balancing weight is fixedly provided with a floating barrel which is mainly made of polyethylene material.

Through adopting above-mentioned technical scheme, the polyethylene material is not absorbent and the quality is light, has certain supporting role to the balancing weight, prevents that the balancing weight from submerging to the aquatic.

The present invention may be further configured in a preferred embodiment as: an arc-shaped protective guard is fixed on the bolt in the well, and the protective guard is vertically covered on the outer sides of the measuring rope and the balancing weight.

Through adopting above-mentioned technical scheme, when the surface of water in the well rose, the balancing weight drove the measuring rope when rocking on the surface of water, prevented that measuring rope and drain pipe and stay cord winding together, and in addition, the rail guard can also be convenient for the staff climbing, the observation condition in the well down.

On the contrary, the utility model discloses a following at least one useful technological effect:

1. the water pump is characterized in that a water drainage pipe is arranged in the water well, a water pump is fixedly arranged at the bottom of the water drainage pipe, a heavy hammer limit switch is arranged at the top of the water well, the bottom of the heavy hammer limit switch is connected with a measuring rope, a balancing weight capable of floating on the water surface is arranged at the bottom of the measuring rope, and an automatic pumping circuit for controlling the operation of the water pump by pushing the balancing weight to control the on and off of the heavy hammer limit switch through the buoyancy of water in the water well is arranged between the heavy hammer limit switch and the water pump; when the water level in the water well is too low, the measuring rope is under the action of the gravity of the balancing weight, the heavy hammer limit switch is controlled to be switched off, the water pump does not work, when the water in the water well is too large, the balancing weight floats on the water surface, the rope is not in the vertical state, the heavy hammer limit switch is controlled to be switched on, and the water pump is controlled to automatically pump water outwards, so that the water level in the water well can be accurately controlled, and the phenomenon that the water pump idles under the condition of water shortage is reduced;

2. the winch on the ground is used, the retractable pull rope is fixedly arranged on the output shaft of the winch, one end of the pull rope, which is far away from the winch, is fixedly connected to the water pump, the winch unreels the pull rope, and the pull rope drives the water pump to move towards the water well, so that the position of the water pump can be downwards adjusted according to the water amount in the water well, and the water pump can be ensured to pump out the water in the water well;

3. through the bolt be fixed with a curved rail guard in the well, the outside of measuring rope and balancing weight is located to the vertical cover of rail guard, and when the surface of water in the well rose, the balancing weight drove the measuring rope when rocking on the surface of water, prevented that measuring rope and drain pipe and stay cord winding are in the same place, and in addition, the rail guard can also be convenient for the staff climbing, the observation condition in the well of going down.

Drawings

Fig. 1 is a schematic structural diagram of the embodiment.

Fig. 2 is a sectional view of the embodiment.

Fig. 3 is a circuit diagram of a control module.

Fig. 4 is an enlarged view of a portion a of fig. 2.

Fig. 5 is an enlarged view of a portion B of fig. 2.

Fig. 6 is a circuit diagram of an automatic pumping circuit.

In the figure, 1, the ground; 2. a water well; 3. a control box; 4. a water pumping device; 41. a winch; 42. pulling a rope; 43. a water pump; 44. a drain pipe; 5. a water level monitoring device; 51. a support; 52. a heavy hammer limit switch; 521. a connecting rod; 522. a contactor; 53. measuring a rope; 54. a balancing weight; 541. a floating buoy; 55. a spring; 56. a storage box; 57. a motor; 58. protecting the fence; 6. a control module; 61. a detection circuit; 611. a distance sensor; 62. a comparison circuit; 63. a switching circuit; 64. an execution circuit; 7. automatic water pumping circuit.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the utility model discloses a water level elevation automatic control full-automatic pumping device, which comprises a control box 3 placed on the ground 1, wherein a pumping device 4 and a water level monitoring device 5 are connected on the control box 3; the water level monitoring device 5 monitors the water amount in the well 2 and controls the water pumping device 4 to automatically pump out the water in the well 2.

Referring to fig. 1 and 2, the pumping device 4 includes a winch 41 fixed on the ground 1, a pull rope 42 is provided on an output shaft of the winch 41, one end of the pull rope 42 is fixed on the output shaft of the winch 41, the pull rope 42 can be wound on the output shaft of the winch 41, the other end of the pull rope 42 is fixedly connected with a water pump 43, a water discharge pipe 44 is fixedly provided on the water pump 43, and one end of the water discharge pipe 44, which is far away from the water pump 43, extends out of the well 2; the winch 41 unwinds the pull rope 42, and the pull rope 42 drives the water pump 43 to move towards the water well 2, so as to pump out the water in the water well 2.

Referring to fig. 2 and 3, the bottom of the water pump 43 is provided with a control module 6 for controlling the winch 41 to stop moving to prevent the water pump 43 from being damaged, and the control module 6 includes a detection circuit 61, a comparison circuit 62, a switching circuit 63 and an execution circuit 64. The detection circuit 61 comprises a distance sensor 611 coupled to the power source VCC, the distance sensor 611 is disposed at the bottom of the water pump 43, the model of the distance sensor 611 is LTR-507ALS-MD, and the distance sensor 611 can detect the distance from the water pump 43 to the bottom of the well in real time and output the distance value; the comparison circuit 62 comprises a comparator T1 with a negative input end coupled to the distance sensor 611, the comparator T1 is in the model of LM239, a preset distance Vref is coupled to a positive input end of the comparator T1, the preset distance Vref is the minimum distance between the allowable water pump 43 and the bottom of the well, a resistor R1 and a resistor R2 are coupled to a power source VCC, and the preset value Vref is coupled between the connection points of the resistor R1 and the resistor R2; the switch circuit 63 includes a resistor R3 coupled to the output terminal of the comparator T1 and a transistor Q1, the transistor Q1 is NPN type, the base of the transistor Q1 is coupled to the resistor R3 at a position away from the comparator T1, the collector of the transistor Q1 is coupled to the power VCC, and the emitter is grounded; the actuating circuit 64 includes a solenoid coil of the relay KM1 coupled to a collector of the transistor Q1, an ac power source coupled to the normally closed contact 522 of the relay KM1, and the winding machine 41 coupled in series between the normally closed contact 522 of the relay KM1 and the ac power source.

When the winch 41 unreels the pull rope 42, the distance sensor 611 detects the distance between the bottom of the water pump 43 and the bottom of the well in real time, the detected distance value is transmitted to the comparator T1, the comparator T1 compares the distance value with the preset value Vref, when the distance value is smaller than the preset value Vref, a high-level signal is output, the control triode Q1 is switched on, the electromagnetic coil of the control relay KM1 is electrified, namely the normally closed contactor 522KM1-1 of the relay KM1 is switched off, namely the winch 41 is controlled to stop working, the winch 41 is prevented from unreeling the pull rope 42 continuously, the water pump 43 is further reduced from moving towards the bottom of the well, and the water pump 43 is prevented from being damaged due to collision between the water pump 43 and the bottom of the well.

Referring to fig. 4 and 5, the water level monitoring device 5 includes a support 51 disposed at the top edge of the well 2, a weight limit switch 52 is suspended at the bottom of the support 51, a storage box 56 is connected to the bottom of the weight limit switch 52, a connecting rod 521 is hinged to the top of the storage box 56, one end of the connecting rod 521, which is far away from the storage box 56, is hinged to the weight limit switch 52, a contactor 522 is fixedly disposed on the weight limit switch 52, a measuring rope 53 is connected to the storage box 56, the measuring rope 53 is vertically disposed in the well 2, a counterweight 54 is fixedly disposed at the bottom of the measuring rope 53, and the counterweight 54 can float on the water surface, that is, the counterweight 54 can move along the water surface; when the water level is too low, the measuring rope 53 is under the action of the gravity of the balancing weight 54, so that the measuring rope 53 is in a vertical state, the connecting rod 521 cannot contact with the contactor 522, when the water in the well 2 is too large, the balancing weight 54 floats on the water level, the rope is not in a vertical state, and the connecting rod 521 can contact with the contactor 522. The weight limit switch 52 is fixedly provided with a spring 55, the spring 55 is located between the contactor 522 and the connecting rod 521, one end of the spring 55 is fixed on the weight limit switch 52, the other end of the spring 55 is fixedly connected to the connecting rod 521, the spring 55 has a pulling force on the connecting rod 521, and when the weight 54 loses the gravity of the pull rope 42, the connecting rod 521 moves towards the contactor 522 by the elastic force of the spring 55.

Referring to fig. 6, an automatic water pumping circuit 7 is arranged between the weight limit switch 52 and the water pump 43. The automatic water pumping circuit 7 comprises a resistor R4 coupled on a power supply VCC, a water pump 43 is coupled at one end of a resistor R4 far away from the power supply VCC, and a resistor R5 coupled on the power supply VCC, the water pump 43 is coupled at one end of a resistor R4 far away from the power supply VCC, a delay time relay KT1 is connected in parallel on the water pump 43, a weight limit switch 52 and a delay time relay KT1 are connected, both ends of the weight limit switch 52 and the delay time relay KT1 are connected in parallel with normally-open contacts of a relay KM2 and a delay time relay KT1, a normally-open contact of a relay KM2 is connected in series between the resistor R4 and the water pump 43, and a normally-open contact of a relay KM2 is connected in series between the resistor R5 and the water pump 43. When the water in the well 2 is more, the balancing weight 54 floats on the water surface, the rope is not in a vertical state, the connecting rod 521 can contact with the contactor 522, the heavy hammer limit switch 52 is closed, the delay time relay KT1 is electrified, after a period of time is delayed, the normally open contact of the delay time relay KT1 is controlled to be closed, the relay KM2 is electrified, the normally open contact of the control relay KM2 is closed, and then the water pump 43 is controlled to pump water. The delay time relay KT1 is closed for a period of time, and the water surface rocks seriously or the return water speed in the well is too fast and can lead to connecting rod 521 and contactor 522 frequent contact, damages easily, because the position of water pump 43 is less than balancing weight 54 all the time to can prevent that water pump 43 from idle running under the condition that does not have water.

Referring to fig. 4 and 5, a motor 57 is fixedly arranged on the storage box 56, an output shaft of the motor 57 extends into the storage box 56, the end part of the measuring rope 53 is fixedly connected to the output shaft of the motor 57, and the motor 57 is controlled to rotate forward and backward, so that the measuring rope 53 can be controlled to move vertically, the water level in the well 2 can be measured, and the water in the water tank can be conveniently pumped out. The bottom of the counterweight 54 is fixedly provided with a floating pontoon 541, the floating pontoon 541 is mainly made of polyethylene material, the polyethylene material does not absorb water and has light weight, and the floating pontoon has certain supporting function on the counterweight 54 to prevent the counterweight 54 from being submerged in water. The bolt is fixed with an arc rail guard 58 in the well 2, and the outside at measuring rope 53 and balancing weight 54 is located to the vertical cover of rail guard 58, and when the surface of water in the well 2 rose, balancing weight 54 drove measuring rope 53 when rocking on the surface of water, prevented that measuring rope 53 and drain pipe 44 and stay cord 42 twine together, in addition, rail guard 58 can also be convenient for the staff to climb, goes into the observation condition in the well 2.

The implementation principle of the embodiment is as follows: the motor 57 unreels to measuring rope 53, make the balancing weight 54 drop to in the well 2, and simultaneously, hoist 41 makes water pump 43 enter into the well 2, ensure that water pump 43 is located the below of balancing weight 54 all the time, when balancing weight 54 floats on the surface of water, connecting rod 521 can contact with contactor 522, weight limit switch 52 is closed, time delay relay KT1 gets electric, after delaying a period of time, the normally open contact of control time delay relay KT1 is closed, make relay KM2 get electric, the normally open contact of control relay KM2 is closed, and then control water pump 43 draws water, when balancing weight 54 and surface of water separation, the gravity of balancing weight 54 makes limit switch 52 break, water pump 43 stop work promptly, prevent that the water in the well 2 from reducing, water pump 43 idle running.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (9)

1. The utility model provides a full-automatic pumping equipment of water level elevation automatic control, is close to the well head of well (2) including placing in control box (3) on ground (1), control box (3), its characterized in that:

the control box (3) is connected with a water pumping device (4) and a water level monitoring device (5);

the water pumping device (4) comprises a drain pipe (44) extending into the well (2), and a water pump (43) is fixedly arranged at the bottom of the drain pipe (44); the water level monitoring device (5) comprises a heavy hammer limit switch (52) arranged at the top of the well (2), the bottom of the heavy hammer limit switch (52) is connected with a measuring rope (53), a balancing weight (54) capable of floating on the water surface is arranged at the bottom of the measuring rope (53), and an automatic pumping circuit (7) which controls the water pump (43) to work and controls the on and off of the heavy hammer limit switch (52) by pushing the balancing weight (54) to control the on and off of the heavy hammer limit switch (52) through the buoyancy of the water in the well (2) is arranged between the heavy hammer limit switch (52) and the water pump (43).

2. The automatic water pumping device for automatically controlling water level and elevation as claimed in claim 1, wherein: automatic water pumping circuit (7) include water pump (43) with power VCC is coupled, it has time delay relay KT1 to connect in parallel on water pump (43), time delay relay KT1 is coupled with weight limit switch (52) series connection, the both ends of weight limit switch (52) and time delay relay KT1 are connected in parallel has relay KM2 and time delay relay KT 1's normally open contact, the normally open contact of relay KM2 is coupled in series connection between water pump (43) and the power.

3. The automatic water pumping device for automatically controlling water level and elevation as claimed in claim 1, wherein: the water pumping device (4) further comprises a winch (41) fixed on the ground (1), a retractable pull rope (42) is fixedly arranged on an output shaft of the winch (41), and one end, far away from the winch (41), of the pull rope (42) is fixedly connected to a water pump (43).

4. The automatic water pumping device for automatically controlling water level and elevation as claimed in claim 1, wherein:

the bottom of the water pump (43) is provided with a control module (6) for controlling the winch (41) to stop moving so as to prevent the water pump (43) from being damaged;

the control module (6) comprises a detection circuit (61), the detection circuit (61) comprises a distance sensor (611) arranged at the bottom of the water pump (43), and the distance sensor (611) is used for detecting the distance value from the water pump (43) to the bottom of the well in real time and outputting the detected distance value;

the comparison circuit (62), the comparison circuit (62) is connected with the detection circuit (61) and receives the distance value output by the detection circuit (61), compares the received distance value with a preset value, and outputs a high-level signal when the distance value is smaller than the preset value;

the switch circuit (63) is connected with the comparison circuit (62) and receives the high-level signal output by the comparison circuit (62) and outputs an execution signal;

and the execution circuit (64), the execution circuit (64) is connected with the switch circuit (63) and receives the execution signal of the switch circuit (63), and when the execution signal is received, the execution circuit controls the winch (41) to stop working.

5. The automatic water pumping device for automatically controlling water level and elevation as claimed in claim 1, wherein: the bottom of the heavy hammer limit switch (52) is connected with a storage box (56), the top of the storage box (56) is hinged with a connecting rod (521), one end, far away from the storage box (56), of the connecting rod (521) is hinged to the heavy hammer limit switch (52), a contactor (522) is fixedly arranged on the heavy hammer limit switch (52), and the measuring rope (53) is connected into the storage box (56).

6. The automatic water pumping device for automatically controlling water level and elevation as claimed in claim 1, wherein: and a spring (55) positioned between the contactor (522) and the connecting rod (521) is fixedly arranged on the heavy hammer limit switch (52), one end of the spring (55) is fixed on the heavy hammer limit switch (52), and the other end of the spring is fixedly connected to the connecting rod (521).

7. The automatic water pumping device for automatically controlling water level and elevation as claimed in claim 5, wherein: a motor (57) is fixedly arranged on the storage box (56), an output shaft of the motor (57) extends into the storage box (56), and the end part of the measuring rope (53) is fixedly connected to the output shaft of the motor (57).

8. The automatic water pumping device for automatically controlling water level and elevation as claimed in claim 1, wherein: the bottom of the balancing weight (54) is fixedly provided with a floating buoy (541), and the floating buoy (541) is mainly made of polyethylene material.

9. The automatic water pumping device for automatically controlling water level and elevation as claimed in claim 1, wherein: an arc-shaped protective guard (58) is fixed in the water well (2) through bolts, and the protective guard (58) is vertically covered on the outer sides of the measuring rope (53) and the balancing weight (54).

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