CN215719584U

CN215719584U - Drainage device for constructional engineering

Info

Publication number: CN215719584U
Application number: CN202121568625.XU
Authority: CN
Inventors: 钱祝山
Original assignee: Shandong Wanshanlin Construction Engineering Co ltd
Current assignee: Shandong Wanshanlin Construction Engineering Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-02-01
Anticipated expiration: 2031-07-12

Abstract

A drainage device for constructional engineering comprises an air compressor, a water pump body, an electromagnetic valve, a voltage-stabilized power supply, a pressure switch, a detection control circuit and an alarm circuit; the volute water inlet pipe of the water pump body is connected with a branch pipe in parallel, and the volute water outlet pipe of the water pump body is connected with an upper pipe in parallel; one end of the first electromagnetic valve and one end of the second electromagnetic valve are respectively connected with a water inlet pipe and a branch pipe of the volute, one end of the third electromagnetic valve is arranged on a water outlet pipe of the volute, one end of the fourth electromagnetic valve is arranged at the side end of the upper pipe, the other end of the fourth electromagnetic valve is connected with an exhaust pipe of the air pressure tank, and the pressure switch is arranged at the upper end of the upper pipe; the stabilized voltage supply, the detection control circuit and the alarm circuit are arranged on the element box and electrically connected with the water pump. This novel silt blocks up when more in the spiral case, can self-closing water pump body to switch on compressed air carries out the back flush to the silt granule, and the out-of-work back of water pump body can the sound production suggestion staff nearby pinpoint the reason and overhaul, has guaranteed the operation of drawing water as far as possible and has normally gone on.

Description

Drainage device for constructional engineering

Technical Field

The utility model relates to the technical field of construction corollary equipment, in particular to a drainage device for constructional engineering.

Background

In the construction of constructional engineering, a water pump is often needed to discharge water in a low-lying place so as to be beneficial to entering the next working process. In practical application, because a large amount of silt particles and the like are often mixed in a water pumping area of a building site, after a large amount of silt particles enter a volute of a water pump, the inner blockage between an impeller disc and the volute in the volute can be caused at a certain probability, so that the water pumping efficiency of the water pump is low, the heat generated by a motor is too large, and the water pump can be damaged due to too large load under extreme conditions. In summary, it is necessary to provide a drainage device which not only has a function of pumping water, but also can automatically discharge silt particles after the silt particles enter the volute.

SUMMERY OF THE UTILITY MODEL

The utility model provides a drainage device for building engineering, which is based on a water pump body, and can automatically close the space between a water inlet end and a water outlet end of the water pump body and automatically switch on compressed air in an air pressure tank to back flush sediment particles and the like in a volute under the combined action of related mechanisms and circuits when the water pressure and the water quantity are reduced due to the blockage of the sediment particles and the like in the volute of the water pump body under the combined action of related mechanisms and circuits, so that the volute is in a state of no sediment particles and the like as far as possible, and the normal work of the water pump body is ensured.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a drainage device for building engineering comprises an air compressor, a water pump body, an electromagnetic valve, a stabilized voltage power supply and a pressure switch, and is characterized by also comprising a detection control circuit and an alarm circuit; the volute water inlet pipe of the water pump body is connected with a branch pipe in parallel, and the volute water outlet pipe of the water pump body is connected with an upper pipe in parallel; the device comprises a volute, a pressure switch, a water inlet pipe, a water outlet pipe, an upper pipe, a water inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe and a water inlet pipe; the stabilized voltage supply, the detection control circuit and the alarm circuit are arranged in the element box; the power input end of the stabilized voltage power supply, the control power input end of the detection control circuit and two poles of the alternating current power supply are respectively and electrically connected, the power output end of the stabilized voltage power supply is electrically connected with the detection control circuit and the power input end of the alarm circuit, and the power output end of the detection control circuit is respectively and electrically connected with the power input ends of the four electromagnetic valves and the power input end of the water pump body; and the two contacts of the pressure switch are electrically connected with the two signal input ends of the detection control circuit respectively.

Further, the first electromagnetic valve and the third electromagnetic valve are normally open valve core electromagnetic valves, and the second electromagnetic valve and the fourth electromagnetic valve are normally closed valve core electromagnetic valves.

Furthermore, the stabilized voltage power supply is a finished product of an alternating current-to-direct current switching power supply module, and a power output end of the stabilized voltage power supply is connected with a storage battery in parallel.

Further, the pressure switch is an adjustable pressure normally closed contact pneumatic switch.

Further, the detection control circuit comprises a time relay, a resistor, a relay and a time control switch, wherein the time relay, the resistor, the relay and the time control switch are electrically connected, a negative electrode power input end of the time relay and a negative electrode trigger signal input end of the time relay are connected with a negative electrode power input end of the relay, a power output end of the time relay is connected with a positive electrode power input end of the relay, and a normally open contact end of the relay is connected with one input end of the time control switch.

Furthermore, the alarm circuit comprises a power switch, a resistor, a universal mercury switch, a buzzer and an NPN triode, wherein the power switch, the resistor, the universal mercury switch, the buzzer and the NPN triode are electrically connected; one end of a power switch is connected with one end of a first resistor, one end of a second resistor and the positive power input end of a buzzer, the other end of the first resistor is connected with one end of a mercury switch, the base of a first NPN triode at the other end of the mercury switch is connected, the collector of the first NPN triode is connected with the other end of the second resistor and the base of a second NPN triode, the emitters of the two NPN triodes are connected, and the collector of the second NPN triode is connected with the negative power input end of the buzzer.

The utility model has the beneficial effects that: this is novel based on the water pump body, and when blocking up when silt etc. in the water pump body spiral case is little in the application, pressure switch's the big internal contact of pressure relatively opens a way, and the water pump body continues normal work operation of drawing water so. When silt and the like in the volute of the water pump body are blocked more, the pressure of the pressure switch is relatively small, the internal contact of the pressure switch is closed, so that under the combined action of the detection control circuit and the like, the water inlet end and the water outlet end of the water pump body can be automatically closed, compressed air in the air pressure tank can be automatically switched on to carry out back washing on silt particles and the like in the volute, the volute is kept in a state of no silt particles and the like as far as possible, the normal work of the water pump body is ensured, the working efficiency of the water pump body is improved, and the probability of damage of the water pump body is reduced. In this novel operation, warning circuit damages and has a power failure out of work back because of various reasons at the water pump body, can in time find out the reason and overhaul through the staff nearby of buzzer sound production suggestion, has guaranteed the normal clear of the operation of drawing water as far as possible. Based on the above, this is novel has good application prospect.

Drawings

The utility model is further explained below with reference to the figures and examples.

Fig. 1 is a schematic diagram of the novel structure.

Fig. 2 is a circuit diagram of the present invention.

Detailed Description

As shown in fig. 1, a drainage device for construction engineering comprises a small air compressor (not shown in fig. 1) with an air pressure tank, a water pump body 1, an electromagnetic valve 2, a stabilized voltage power supply 3, a pressure switch 4, a detection control circuit 5 and an alarm circuit 6; the lower end of a volute water inlet pipe of the water pump body 1 is provided with an opening, a branch pipe 101 communicated with the interior of the volute is vertically welded to the outer side end of the lower opening, an opening is formed in the right end of a volute water outlet pipe of the water pump body 1, and an upper pipe 102 communicated with the interior of the volute is transversely welded to the outer side end of the right opening; one end of the first electromagnetic valve 2 and one end of the second electromagnetic valve 2 are in threaded connection with a water inlet pipe 103 and a branch pipe 101 of the volute respectively, the other end of the first electromagnetic valve 2 and the other end of the second electromagnetic valve 2 are connected with a lower water inlet pipe and an emptying pipe respectively, a rubber pipe with certain strength is sleeved outside the lower water inlet pipe, and the lower end of the rubber pipe is positioned below the water surface of the water pumping area; one end of the third electromagnetic valve 2 is installed at the upper end of a water outlet pipe 104 of the volute through threads and is positioned above an upper pipe 102, the other end of the third electromagnetic valve 2 is installed with a water outlet pipe through threads, a rubber pipe with certain strength is sleeved at the upper end of the water outlet pipe, and the other end of the rubber pipe is positioned on a water outlet area; one end of the fourth electromagnetic valve 2 is installed at the right side end of the upper pipe 102 through threads, an air pipe 105 is installed in the other end of the fourth electromagnetic valve 2 through threads, and the air pipe 105 and an exhaust pipe of the air compression tank are connected in a sleeved mode through a rubber hose; the middle part of the upper end of the upper pipe 102 is provided with an internal thread opening, and the pressure switches 4 are vertically distributed and screwed into the internal thread of the upper pipe through the external thread of the air inlet pipe so as to be arranged at the upper end of the upper pipe 102; the stabilized voltage power supply 3, the detection control circuit 5 and the alarm circuit 6 are installed on a circuit board in the element box 7, and the element box 7 is installed in the middle outside the upper end of the shell of the water pump body 1 through screw and nut sealing.

As shown in fig. 1 and 2, the first solenoid valve DC1 and the third solenoid valve DC3 are normally open spool solenoid valves having an operating voltage of 220V and a power of 2W, and the second solenoid valve DC2 and the fourth solenoid valve DC4 are normally closed spool solenoid valves having an operating voltage of 220V and a power of 2W. The small air compressor is an alternating current air compressor body with the working voltage of 220V and the power of 1 KW; the water pump body M is a self-sucking water pump with 220V of power working voltage and 2KW of power, and can also adopt a submersible pump; the regulated power supply U1 is a finished product of a 220V/12V AC 220V-to-DC 12V switching power supply module, and a 12V/5Ah lithium storage battery G is connected in parallel to

pins

3 and 4 of a power output end of a regulated power supply U1. The pressure switch W is a finished product of an adjustable pressure normally closed contact air pressure switch of model MD-S700, an adjusting switch is arranged at the upper end of a shell, after the pressure switch is adjusted leftwards, when the pressure entering an air inlet pipe is relatively small, two normally closed contacts in the shell are opened, and after the pressure switch is adjusted rightwards, when the pressure entering the air inlet pipe is relatively large, two normally closed contacts in the shell are opened. Detection control circuit includes time relay U2, resistance R, relay K, time switch U3, time relay, resistance, a relay, connect through the circuit board wiring between the time switch, time relay U2 negative pole power input 2 feet and 4 feet of negative pole trigger signal input terminal and relay K negative pole power input terminal are connected, time relay U2's power output 9 feet and relay K anodal power input terminal are connected, relay K normally open contact end and time switch U3 power input one end 1 foot are connected, resistance R one end and time relay U2 anodal power input terminal 1 foot are connected. The alarm circuit comprises a power switch SK, resistors R1 and R2, a universal mercury switch T, a buzzer B, NPN and an audion Q1 and Q2, wherein the resistors, the universal mercury switch, the power switch SK (a handle is positioned outside an opening at the front end of the element box), the buzzer and the NPN audion are connected through circuit board wiring; the universal mercury switch T is vertically arranged on the circuit board, two contacts in the glass shell are positioned at the upper end, when the water pump body M does not work and the mercury switch T is not vibrated, the mercury liquid level in the shell of the mercury switch T does not submerge the two contacts, the water pump body M vibrates when working, and when the mercury switch T is vibrated, the mercury liquid level in the shell of the mercury switch T submerges the two contacts; one end of a power switch SK is connected with one end of a first resistor R1 and a second resistor R2 and an anode power input end of a buzzer B, the other end of the first resistor R1 is connected with one end of a mercury switch T, the other end of the mercury switch T is connected with a base of a first NPN triode Q1, a collector of the first NPN triode Q1 is connected with the other end of a second resistor R2 and a base of a second NPN triode Q2, emitting electrodes of the two NPN triodes Q1 and Q2 are connected, and a collector of a second NPN triode Q2 is connected with a cathode power input end of the buzzer B.

As shown in fig. 1 and 2, the

power input terminals

1 and 2 of the regulated power supply U1, the control power input terminal relay K of the detection control circuit, the control power input terminal, the other power input terminal 2 of the time control switch U3 (one power input terminal of the water pump body M is connected with the other power input terminal 2 of the time control switch U3), and the two poles of the ac power supply are respectively connected by leads. The

pins

3 and 4 of the power output end of the regulated power supply U1, the

pins

1 and 2 of the time relay U2 of the power input end of the detection control circuit, the other end of the power switch SK of the power input end of the alarm circuit and the emitting electrode of the NPN triode Q1 are respectively connected through leads. The power output end of the detection control circuit is connected with

pins

3 and 4 of a time control switch U3 and the two power input ends of four electromagnetic valves DC1, DC2, DC3 and DC4 through leads respectively; the normally closed contact end of a power output end relay K of the detection control circuit is connected with the other end of the power input end of the water pump body through a wire; two contacts of the pressure switch T are respectively connected with the pin 1 of the time relay U2 at the two signal input ends of the detection control circuit and the other end of the resistor R through leads.

Fig. 1, 2 show, this is novel based on water pump body 1, and other uses process, principle and current water pump are identical completely, and this application is no longer repeated. Need this novel during operation, the staff opens 220V switch, behind the 1 and 2 feet that 220V alternating current power supply got into constant voltage power supply U1, constant voltage power supply U1 can export stable 12V power and get into detection control circuit, alarm circuit's power input end (output power supply floats for battery G simultaneously and charges, this novel alarm circuit also can play the monitoring alarm effect even have a power failure back like this) under its internal circuit effect, then, above-mentioned circuit is in the operating condition that gets electric. After the water pump body M works under the power supply (one pole of a 220V power supply enters one end of the power supply input end of the water pump body M through the relay K control power supply input end and the normally closed contact end, the other pole of the 220V power supply enters the other end of the power supply input end of the water pump body M), the internal valve cores of the first electromagnetic valve DC1 and the third electromagnetic valve DC3 in the power-off state are opened, the internal valve cores of the second electromagnetic valve DC2 and the fourth electromagnetic valve DC4 in the power-off state are closed, therefore, the water pump body M can normally pump water through the lower water inlet pipe at the lower part of the volute, and then the water pumped out of the volute is discharged to a water discharge area through the water discharge pipe and the rubber pipe. In practical situations, when the water pump body M pumps water, water with pressure enters the upper pipe 102, so that the pressure switch W is under a large pressure, the internal contact of the pressure switch W is opened, and the water pump body M at the rear stage normally keeps a water pumping state. After the volute of the water pump body is blocked by various silt particles, because the water yield of the volute is reduced, at the moment, the water pressure of the water entering the upper pipe 102 is reduced, so that the pressure action of the pressure switch W is relatively small, the internal contact of the pressure switch W is closed, and then the 12V power supply anode can be subjected to voltage reduction and current limitation through the resistor R and enters the anode trigger signal input end 3 pins of the time relay U2, the time relay U2 is triggered under the action of the internal circuit and the action of 9-pin output power time set by a technician and can output 10 seconds of power to enter the anode power supply input end of the relay K, the relay K is electrified to attract the control power supply input end and the normally open contact end of the relay K to be closed, the control power supply input end and the normally closed contact end of the relay K are open (the water pump body M is not electrified and does not work), and then the time control switch U3 is electrified to work. After the time control switch U3 works by power, under the action of an internal circuit and 3 and 4 feet output power time set by a technician, power can be output for 10 seconds and enters the power input ends of the electromagnetic valves DC1, DC2, DC3 and DC4, then the internal valve cores of the electromagnetic valves DC1 and DC3 which are powered are closed, and the internal valve cores of the electromagnetic valves DC2 and DC4 which are powered are opened, so that the electromagnetic valves DC1 and DC3 which are powered are closed because the water pump body M does not work any more, external water can not enter the volute and be discharged, meanwhile, because the valve cores of the electromagnetic valves DC2 and DC4 are opened, high-pressure air output by the air pressure tank can enter the volute through the electromagnetic valve DC4 at high speed in a countercurrent manner, silt particles blocked in the volute can be discharged outwards from the second electromagnetic valve DC2 with the opened lower end valve core, and accordingly good back flushing effect of the silt particles in the volute can be achieved. After 10 seconds, the time relay module U2 stops outputting power, then the time switch U3, the electromagnetic valves DC1, DC2, DC3 and DC4 are powered off, the water pump body M is powered on again after the relay K is powered off, the valve cores of the electromagnetic valves DC1 and DC3 are opened again after the electromagnetic valves DC2 and DC4 are powered off, and the valve cores are closed again after the electromagnetic valves DC2 and DC4 are powered off, so that the water pump body M is powered on again to drain the pumped water in the low depression outwards (in actual conditions, the electromagnetic valves DC1, DC2, DC3 and DC4 are powered off simultaneously, the water pump body M is powered on and works, and the last time the electromagnetic valve DC3 is powered on and closed quickly, therefore, a large amount of residual water exists in the upper water drain pipe and the rubber pipe of the water pump body M, and when the secondary water pump body M works, the internal energy generates negative pressure water suction. When secondary water pump body M got electric work, because silt granule etc. in the spiral case have washed well, so, when water pump body M pump goes out water, water with pressure gets into in the upper tube 102 once more, pressure switch W receives great pressure effect once more, after its inside contact opens a way once more, the anodal trigger signal just can not be input again to later stage time relay U2's 3 feet, water pump body M normally keeps the state of drawing water once more, only next time when the spiral case of water pump body in because of silt granule blocks up, this novel back flush operation that just can carry out again after the water yield of spiral case reduces. It should be noted that, when this novel initial state was started, because pressure switch W pressure is low, time relay module U2 can be triggered once, and then solenoid valve DC1, DC3 gets electric inside case and closes, solenoid valve DC2, DC4 gets electric inside case and opens, water pump body M temporarily does not work in work, the high-pressure air of air-compressing tank output passes through solenoid valve DC4 high-speed adverse current and gets into in the spiral case and discharge through solenoid valve DC2, in 10 seconds, wash remaining silt granule in the spiral case after shutting down last time, make abundant preparation for water pump body M's normal operation of drawing water. After 10 seconds, the water pump body M enters a normal water pumping operation procedure.

Fig. 1 and 2 show, this novel water pump body M starts the back, the staff opens switch SK, then, alarm circuit gets electric work, vibration that normal work produced when water pump body M can act on mercury switch T (the universal mercury switch of glass shell), its internal contact submerges two contacts, 12V power positive pole can step down the current-limiting through resistance R1 like this, get into NPN triode Q1's base through the closed mercury switch T of internal contact, NPN triode Q1 switches on the base that collector output low level got into NPN triode Q2, NPN triode Q2 base does not have suitable forward bias and is in the off-state, bee calling organ B also can not sound, represent water pump body M normal work then. When the water pump is damaged or the power is cut off due to various reasons on site, due to the fact that vibration does not exist, the internal contact of the mercury switch T is opened, the positive pole of a 12V power supply does not enter the base electrode of an NPN triode Q1 any more, the collector of the cut-off NPN triode Q1 does not output low level and enters the base electrode of an NPN triode Q2, the base electrode of the NPN triode Q2 is subjected to voltage reduction and current limiting through a resistor R2 to obtain proper forward bias to be in a conducting state, then the collector of the cut-off NPN triode Q2 is conducted to output low level and enter the negative power supply input end of a buzzer B, the buzzer B is electrified to sound, nearby workers are intuitively prompted, problems occur in the water pump body M, and timely maintenance is conducted, and normal water pumping operation is guaranteed. In the circuit, models of NPN triodes Q1 and Q2 are 9014 and 9013 respectively; the resistances of the resistors R, R1 and R2 are 1K, 470K and 47K respectively; relay K is a DC12V relay; the buzzer B is an active continuous sound buzzer alarm finished product with the model SF 12V. The time control switch U3 is a microcomputer time control switch with model KG316T, the finished product of the microcomputer time control switch is provided with a liquid crystal display screen, and also has the functions of canceling/restoring, time correcting, week correcting, automatic/manual, timing and clock keys, and two

power input ends

1 and 2 pins, two

power output ends

3 and 4 pins, the numbers displayed by the liquid crystal display screen after being electrified, a user respectively operates seven keys, the time of the power output ends 3 and 4 pins for outputting power can be set, the finished product of the microcomputer time control switch has a memory function, as long as the secondary setting adjustment is not carried out, the power failure of an external power supply can not cause the change of an internally set time program. The time relay module U2 is a time controller module of type YYC-2S, the time controller module has a digital LED tube with four-digit time display, and also has two

power input terminals

1 and 2, two trigger

signal input terminals

3 and 4, a setting button 5, an emergency stop button 6, a time adding button 7, a time reducing button 8, and a normally open power output terminal 9, after the power input terminals of the positive and negative poles of the time controller module are electrified, the operator presses the setting button, the time adding button and the time reducing button are respectively operated through the digital display of the digital tube, the output terminal of the normally open power can be set to output the positive power in the required time period, after the set time period, the output terminal of the normally open power stops outputting power, after the time controller module product sets the time, as long as the next setting is not carried out, the data set in the time relay module can not be changed after power failure, the time is set, and the time relay module finished product performs set time timing after the trigger power supply signal is input to the two trigger signal input ends. When a technician needs to adjust a knob of the pressure switch during production, and a certain amount of silt particles are in the volute, the water pump M is adjusted to be just powered off (the electromagnetic valves DC1, DC2, DC3 and DC4 are powered on; when the silt particles are few, the water pump M works normally).

The essential features of the utility model and the advantages of the utility model have been shown and described above, it will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, the embodiments do not include only one independent technical solution, and such description is only for clarity, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drainage device for building engineering comprises an air compressor, a water pump body, an electromagnetic valve, a stabilized voltage power supply and a pressure switch, and is characterized by also comprising a detection control circuit and an alarm circuit; the volute water inlet pipe of the water pump body is connected with a branch pipe in parallel, and the volute water outlet pipe of the water pump body is connected with an upper pipe in parallel; the device comprises a volute, a pressure switch, a water inlet pipe, a water outlet pipe, an upper pipe, a water inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe and a water inlet pipe; the stabilized voltage supply, the detection control circuit and the alarm circuit are arranged in the element box; the power input end of the stabilized voltage power supply, the control power input end of the detection control circuit and two poles of the alternating current power supply are respectively and electrically connected, the power output end of the stabilized voltage power supply is electrically connected with the detection control circuit and the power input end of the alarm circuit, and the power output end of the detection control circuit is respectively and electrically connected with the power input ends of the four electromagnetic valves and the power input end of the water pump body; and the two contacts of the pressure switch are electrically connected with the two signal input ends of the detection control circuit respectively.

2. The drainage device of building engineering according to claim 1, wherein the first and third solenoid valves are normally open spool solenoid valves, and the second and fourth solenoid valves are normally closed spool solenoid valves.

3. The drainage device for building engineering according to claim 1, wherein the regulated power supply is a finished product of an AC-DC switching power supply module, and the power output end of the regulated power supply is connected with a storage battery in parallel.

4. A construction drainage device according to claim 1, wherein the pressure switch is an adjustable pressure normally closed contact pneumatic switch.

5. The drainage device of building engineering according to claim 1, wherein the detection control circuit comprises a time relay, a resistor, a relay and a time control switch, the time relay, the resistor, the relay and the time control switch are electrically connected, a negative power input end and a negative trigger signal input end of the time relay are connected with a negative power input end of the relay, a power output end of the time relay is connected with a positive power input end of the relay, and a normally open contact end of the relay is connected with one end of a power input end of the time control switch.

6. The drainage device for building engineering according to claim 1, wherein the alarm circuit comprises a power switch, a resistor, a universal mercury switch, a buzzer and an NPN triode, and the power switch, the resistor, the universal mercury switch, the buzzer and the NPN triode are electrically connected; one end of a power switch is connected with one end of a first resistor, one end of a second resistor and the positive power input end of a buzzer, the other end of the first resistor is connected with one end of a mercury switch, the base of a first NPN triode at the other end of the mercury switch is connected, the collector of the first NPN triode is connected with the other end of the second resistor and the base of a second NPN triode, the emitters of the two NPN triodes are connected, and the collector of the second NPN triode is connected with the negative power input end of the buzzer.