CN219821384U - Automatic mixing fluid infusion device - Google Patents

Abstract

The utility model discloses an automatic mixing and fluid infusion device which comprises a proportion pump, a liquid storage tank and a control circuit, wherein the proportion pump is connected with the liquid storage tank; the liquid storage tank comprises a tank body, a liquid storage tank and a liquid storage tank, wherein the tank body of the liquid storage tank is provided with a water inlet, a water outlet and an overflow port, and a plurality of liquid level switches are arranged in the tank body; the water inlet of the proportional pump is connected with a pressurized water pipe through a normally closed electromagnetic valve, the liquid suction port of the proportional pump is connected with a stock solution barrel through a liquid inlet pipe with a filter screen, and the liquid outlet of the proportional pump is connected with a liquid inlet port of the liquid storage tank; the control circuit is connected with each liquid level switch and controls the switch of the normally closed electromagnetic valve. The utility model has convenient operation, energy conservation and low system cost; the two groups of liquid level switches provide double guarantee, the system reliability is high, and the application value is good.

Description

Automatic mixing fluid infusion device

Technical Field

The utility model belongs to the technical field of self-service cleaning equipment, and particularly relates to an automatic mixing and fluid infusion device.

Background

In order to realize the freedom of car washing, self-service car washing machines have been developed. The self-service car washer contains 4 basic functions of clear water, foam, dust collection and hand washing although the appearance is different, wherein the foam function needs to generate car washing liquid mixed liquor, and common manual mixing is carried out to periodically add and automatically generate the mixed liquor by using a pump, and the manual mixing is carried out to periodically add labor cost and inconvenient operation. And the pump is used for automatically mixing and comparing the power consumption, the disposable cost of the equipment is high, and the continuous power consumption cost is caused later.

Therefore, a car washing liquid generating device which is convenient to operate and low in energy consumption needs to be designed.

Disclosure of Invention

The utility model aims to solve the technical problems and provides an automatic mixing and fluid infusion device.

The utility model is realized according to the following technical scheme:

an automatic mixing fluid infusion device comprises a proportion pump, a liquid storage tank and a control circuit; the liquid storage tank comprises a tank body, a liquid storage tank and a liquid storage tank, wherein the tank body of the liquid storage tank is provided with a water inlet, a water outlet and an overflow port, and a plurality of liquid level switches are arranged in the tank body; the water inlet of the proportional pump is connected with a pressurized water pipe through a normally closed electromagnetic valve, the liquid suction port of the proportional pump is connected with a stock solution barrel through a liquid inlet pipe with a filter screen, and the liquid outlet of the proportional pump is connected with a liquid inlet port of the liquid storage tank; the control circuit is connected with each liquid level switch and controls the switch of the normally closed electromagnetic valve.

Further, an overflow port of the liquid storage tank is positioned at the upper part of the tank body; the number of the liquid level switches is three, the liquid level switches are respectively a first liquid level switch, a second liquid level switch and a third liquid level switch, and the liquid level switches are all arranged on the inner wall of the liquid storage tank and are lower than the overflow port in installation height.

Further, the installation height of the first liquid level switch in the liquid storage tank corresponds to the opening liquid level height of the liquid supplement, the installation height of the second liquid level switch corresponds to the normal liquid level height, and the installation height of the third liquid level switch corresponds to the safe liquid level height.

Further, each liquid level switch in the liquid storage tank comprises at least two wiring contacts, two electrical states of connection and disconnection exist between the two wiring contacts, the liquid level in the liquid storage tank is lower than the liquid level switch, the two wiring contacts are in a connection state, and the liquid level in the liquid storage tank is higher than the liquid level switch, and the two wiring contacts are in a disconnection state.

Further, the second liquid level switch and the third liquid level switch are respectively connected with each other through a wiring contact to form a series liquid level switch; the other two wiring contacts of the second liquid level switch and the third liquid level switch are used as wiring contacts of the series liquid level switch.

Further, the control circuit comprises a power supply and an electromagnetic relay, wherein the electromagnetic relay comprises a coil, a first change-over switch and a second change-over switch, and each change-over switch comprises a normally open contact, a normally closed contact and a common contact;

the coil comprises two wiring terminals, wherein one wiring terminal is connected with one wiring contact of the first liquid level switch and a common contact of the first change-over switch, and the other wiring terminal is connected with a power line negative electrode and a power negative electrode of the normally closed electromagnetic valve; the other wiring contact of the first liquid level switch is connected with the positive electrode of the power supply;

the normally open contact of the first change-over switch is connected with one wiring contact of the series liquid level switch, and the other wiring contact of the series liquid level switch is connected with the positive electrode of the power supply;

and the normally open contact of the second change-over switch is connected with the positive electrode of the power supply, and the common contact is connected with the positive electrode of the power line of the normally closed electromagnetic valve.

The utility model has the advantages and beneficial effects that:

the automatic mixing and fluid supplementing device is convenient to operate, has no other electric modules which consume electric energy except the relay and the normally closed electromagnetic valve, is driven by tap water to perform proportioning and fluid supplementing functions, does not need to consume other energy additionally, saves energy and has low system cost; the relay is matched with the normally closed electromagnetic valve, and has a self-locking function; the two groups of liquid level switches provide double guarantee, and even if one liquid level switch fails, the electromagnetic valve can be turned off in time to stop liquid supplementing, so that the reliability of the system is greatly improved. The utility model can be applied to car washing machines, can be applied to other application occasions where two liquids are required to be mixed in proportion, and has good application value.

Drawings

FIG. 1 is a schematic diagram of an automatic mixing and fluid infusion device in accordance with the present utility model;

fig. 2 is a schematic diagram of a wiring scheme of the control circuit in the present utility model.

Wherein, 1, normally closed electromagnetic valve; 2. a proportional pump; 3. a stock solution barrel; 4. a liquid storage tank; 401. a flow inlet; 402. a flow outlet; 403. an overflow port; 5. a first liquid level switch; 6. a second liquid level switch; 7. a third liquid level switch; 8. an electromagnetic relay.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings and examples.

As shown in fig. 1-2, an automatic mixing and fluid infusion device comprises a proportion pump 2, a liquid storage tank 4 and a control circuit; the tank body of the liquid storage tank 4 is provided with a water inlet 401, a water outlet 402 and an overflow 403, and a plurality of liquid level switches are arranged in the tank body; the water inlet of the proportional pump 2 is connected with a pressurized water pipe through a normally closed electromagnetic valve 1, the liquid suction port of the proportional pump 2 is connected with a stock solution barrel 3 through a liquid inlet pipe with a filter screen, and the liquid outlet of the proportional pump 2 is connected with an inflow port 401 of a liquid storage tank 4; the control circuit is connected with each liquid level switch and controls the switch of the normally closed electromagnetic valve 1.

The normally closed electromagnetic valve 1 can be of the tripod type WFS-E-B011-6. The proportioning pump 2 is also called a liquid proportioning machine, is driven by tap water without other power sources, can be of the type 2502/2504, is available, and is provided with an adjustable proportion scale on a machine body for adjusting the mixing proportion of water and stock solution. Each liquid level switch can be a wall graffiti series (F type) liquid level switch produced by star automation; the electromagnetic relay 8 can be selected from a bridge relay ZQ30F-C1 model. The power supply is used for providing power for the control circuit.

Preferably, a pressurized water pipe connected with the normally closed electromagnetic valve 1 is generally a tap water pipe, the water pressure of the tap water pipe can enable water to flow into the proportional pump 2 through the normally closed electromagnetic valve 1 and drive the proportional pump 2 to operate, a liquid suction port of the proportional pump 2 sucks raw liquid from the raw liquid barrel 3 and is mixed with water input from a water inlet, and the raw liquid is output to an inflow port 401 of the liquid storage tank 4 from a liquid outlet.

The material and size of the liquid storage tank 4 can be selected according to actual needs.

The overflow port 403 of the liquid storage tank 4 is positioned at the upper part of the tank body; the liquid level switches are a first liquid level switch 5, a second liquid level switch 6 and a third liquid level switch 7 respectively, and are all arranged on the inner wall of the liquid storage tank 4 and are lower than the overflow port 403 in installation height. The inflow port 401 is used for inputting mixed liquid, the outflow port 402 is used for outputting mixed liquid outwards from the liquid storage tank 4, the overflow port 403 extends out through a pipeline, and when the device fails and the liquid supplementing cannot stop, the liquid can be discharged to avoid damaging other accessories. The overflow port 403 cannot be opened on the bottom surface, and the inlet port 401 and the outlet port 402 can flexibly select the position of the opening; preferably, the inflow port 401 is disposed at a position near the bottom of the side wall of the liquid storage tank 4, the outflow port 402 is disposed at the bottom of the liquid storage tank 4, and the overflow port 403 is disposed above the side wall of the liquid storage tank 4.

The installation height of the first liquid level switch 5 in the liquid storage tank 4 corresponds to the height of the liquid level of the liquid filling, and when the installation height is lower than the height, the liquid filling operation is started; the installation height of the second liquid level switch 6 corresponds to the normal liquid level height, and when the installation height reaches the normal liquid level height, the liquid supplementing operation is stopped. The installation height of the third level switch 7 corresponds to a safe level, i.e. in principle the level is not allowed to exceed this height, which would cause problems, such as increasing the load of the tank 4, etc. As shown in fig. 1, three dotted lines in the liquid storage tank 4 correspond to a liquid supplementing liquid level line, a normal liquid level line and a safe liquid level line from bottom to top, and the heights of the three liquid level lines are respectively an opening liquid supplementing liquid level height, a normal liquid level height and a safe liquid level height.

Each liquid level switch in the liquid storage tank 4 comprises at least two wiring contacts, two electrical states of connection and disconnection exist between the two wiring contacts, the liquid level in the liquid storage tank 4 is lower than the liquid level switch, the two wiring contacts are in a connection state, and the liquid level in the liquid storage tank 4 is higher than the liquid level switch, and the two wiring contacts are in a disconnection state.

The second liquid level switch 6 and the third liquid level switch 7 are respectively connected with each other through a wiring contact to form a series liquid level switch; the other two connection contacts of the second level switch 6 and the third level switch 7 serve as connection contacts of the series-connected level switches.

The control circuit comprises a power supply and an electromagnetic relay 8, wherein the electromagnetic relay 8 comprises a coil, a first change-over switch and a second change-over switch, and each change-over switch comprises a normally open contact, a normally closed contact and a common contact.

The coil comprises two wiring terminals, wherein one wiring terminal is connected with one wiring contact of the first liquid level switch 5 and a common contact of the first change-over switch, and the other wiring terminal is connected with a power line negative electrode and a power supply negative electrode of the normally closed electromagnetic valve 1; the other wiring contact of the first liquid level switch 5 is connected with the positive electrode of the power supply.

The normally open contact of the first change-over switch is connected with one wiring contact of the series liquid level switch, and the other wiring contact of the series liquid level switch is connected with the positive electrode of the power supply.

The normally open contact of the second change-over switch is connected with the positive electrode of the power supply, and the common contact is connected with the positive electrode of the power line of the normally closed electromagnetic valve 1.

As shown in fig. 2, there is a switch on each of the left and right sides inside the electromagnetic relay 8, wherein the first switch is located on the left side and the second switch is located on the right side. The three contacts of each change-over switch are a normally open contact, a common contact and a normally closed contact in sequence from top to bottom. Located below the two switches is a coil.

The working principle of the control circuit is as follows: when the coil of the electromagnetic relay 8 is not energized, the conduction states of the two sets of change-over switches in the electromagnetic relay 8 are as shown in fig. 2, that is, conduction between the common contact and the normally-closed contact is performed.

When the first liquid level switch 5 is conducted, the coil of the electromagnetic relay 8 is electrified, the conducting state of the two groups of change-over switches in the electromagnetic relay 8 is changed, and the normally open contact and the common contact are conducted. Therefore, if the second liquid level switch 6 and the third liquid level switch 7 are both in the on state at this time, current can flow through the coil through the first liquid level switch 5, and also can flow through the coil through the second liquid level switch 6 and the third liquid level switch 7, even if the first liquid level switch 5 is disconnected, current still passes through the coil, so that the two groups of switching switches can keep the existing state, and the self-locking is realized. In the power-on self-locking state, the power supply of the normally closed electromagnetic valve 1 is connected and is in the working state.

And the electromagnetic relay 8 which enters the power-on self-locking state is only disconnected when at least one of the second liquid level switch 6 and the third liquid level switch 7 is disconnected, and the coil is powered off. The coil after power off needs to be conducted again by the first liquid level switch 5, and then the coil can enter the power on self-locking state again.

Embodiment one:

when the liquid level is lower than the liquid supplementing liquid level line, the two contacts of the first liquid level switch 5 are communicated, the electromagnetic relay 8 enters an electrified self-locking state, the normally closed electromagnetic valve 1 is powered on, the valve body is opened, tap water flows into the proportional pump 2, tap water drives the pump in the proportional pump 2 to absorb the stock solution from the stock solution barrel 3, and after the inside of the proportional pump 2 is fully mixed, the stock solution is discharged from the liquid outlet and flows into the liquid storage tank 4. Along with the rise of the liquid level, when the liquid level reaches a normal liquid level line, the two contacts of the second liquid level switch 6 are disconnected, the electromagnetic relay 8 releases the power on self-locking state, the power supply of the normally closed electromagnetic valve 1 is disconnected, the valve body is closed, tap water stops flowing into the proportional pump 2, and mixing and liquid supplementing are stopped, so that the automatic mixing and liquid supplementing of the stock solution and water are realized.

Embodiment two:

if the second liquid level switch 6 fails, the liquid level is still continuously replenished after exceeding the normal liquid level line, and when the liquid level reaches the safe liquid level line, the third liquid level switch 7 is disconnected, and the electromagnetic relay 8 releases the power-on self-locking state; therefore, the power supply of the normally closed electromagnetic valve 1 is disconnected, the valve body is closed, and the fluid infusion is stopped.

Embodiment III:

if the second liquid level switch 6 and the third liquid level switch 7 are failed, the liquid filling cannot be stopped, and after the liquid level rises to the height of the overflow port 403, the mixed liquid is discharged from the overflow port 403.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The applicant declares that the above is only a specific embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and it should be apparent to those skilled in the art that any changes or substitutions that are easily conceivable within the technical scope of the present utility model disclosed by the present utility model fall within the scope of the present utility model and the disclosure.

Claims (6)

1. An automatic mixing and fluid supplementing device is characterized by comprising a proportional pump (2), a liquid storage tank (4) and a control circuit; a box body of the liquid storage box (4) is provided with a water inlet (401), a water outlet (402) and an overflow port (403), and a plurality of liquid level switches are arranged in the box body; the water inlet of the proportional pump (2) is connected with a pressurized water pipe through a normally closed electromagnetic valve (1), the liquid suction port of the proportional pump (2) is connected with a stock solution barrel (3) through a liquid inlet pipe with a filter screen, and the liquid outlet of the proportional pump (2) is connected with an inflow port (401) of the liquid storage tank (4); the control circuit is connected with each liquid level switch and controls the switch of the normally closed electromagnetic valve (1).

2. An automatic mixing and fluid infusion device according to claim 1, characterized in that the overflow port (403) of the tank (4) is located in the upper part of the tank body; the number of the liquid level switches is three, the liquid level switches are respectively arranged on the inner wall of the liquid storage tank (4) and the installation height of the liquid level switches is lower than that of the overflow port (403), and the three liquid level switches are a first liquid level switch (5), a second liquid level switch (6) and a third liquid level switch (7).

3. An automatic mixing and fluid infusion device according to claim 2, characterized in that the first level switch (5) in the reservoir (4) is mounted at a level corresponding to the level of the on-fluid infusion, the second level switch (6) is mounted at a level corresponding to the normal level, and the third level switch (7) is mounted at a level corresponding to the safety level.

4. An automatic mixing and fluid-filling device according to claim 3, characterized in that each liquid level switch in the liquid storage tank (4) comprises at least two wiring contacts, two electrical states of connection and disconnection exist between the two wiring contacts, the liquid level in the liquid storage tank (4) is lower than the liquid level switch, the two wiring contacts are in a connection state, and the liquid level in the liquid storage tank (4) is higher than the liquid level switch, and the two wiring contacts are in a disconnection state.

5. An automatic mixing and fluid infusion device according to claim 4, wherein the second (6) and third (7) fluid level switches are connected to each other by a respective one of the connection contacts, forming a series of fluid level switches; the other two connection contacts of the second liquid level switch (6) and the third liquid level switch (7) are used as connection contacts of the series liquid level switch.

6. An automatic mixing and fluid-filling device according to claim 5, characterized in that the control circuit comprises a power supply and an electromagnetic relay (8), the electromagnetic relay (8) comprising a coil, a first change-over switch, a second change-over switch, each change-over switch comprising a normally open contact, a normally closed contact, a common contact;

the coil comprises two wiring terminals, wherein one wiring terminal is connected with one wiring contact of the first liquid level switch (5) and a common contact of the first change-over switch, and the other wiring terminal is connected with a power line negative electrode and a power supply negative electrode of the normally closed electromagnetic valve (1); the other wiring contact of the first liquid level switch (5) is connected with the positive electrode of the power supply;

the normally open contact of the first change-over switch is connected with one wiring contact of the series liquid level switch, and the other wiring contact of the series liquid level switch is connected with the positive electrode of the power supply;

the normally open contact of the second change-over switch is connected with the positive electrode of the power supply, and the common contact is connected with the positive electrode of the power line of the normally closed electromagnetic valve (1).