CN213479337U - Water level control structure of water tank - Google Patents

Abstract

The utility model relates to a water level control structure of water tank, it improves on the basis of current valve body, first case, drive seat, first floater and first, second magnet, and top-down is provided with the spacing portion of low water level and the spacing portion of high water level according to the interval height of predetermineeing on the lateral wall of first floater promptly, and the one end of lever is spacing between this spacing portion of low water level and the spacing portion of high water level. After adopting above-mentioned structure, make the one end of lever rise or the beginning of decline can not move thereupon in a period of time, so when being applied to on the pipeline machine, the one end of lever is followed and is shifted into the spacing in-process that offsets of low water level to the spacing portion of high water level, the lever can not drive the drive seat axial displacement, just also can not let the water inlet intake, can let the water in the water tank use a lot of at this in-process, reduce the water intake number of times of water tank, increase the inflow of intaking at every turn, thereby can solve the interior urgent problem of treating the clean (pure) water machine of solving frequently to start.

Description

Water level control structure of water tank

Technical Field

The utility model relates to a water level control structure specifically indicates a water level control structure of water tank.

Background

In the liquid level control structure of the container, an external blocking type liquid level floating ball valve control device is basically adopted, namely, a floating ball valve is arranged at a liquid supplementing port of the container (such as a water tank), a lever floating ball is arranged at one end of the floating ball valve, the floating ball is driven to synchronously move up and down by utilizing the lifting of the liquid level, the liquid supplementing port is closed or loosened by utilizing the displacement, when the displacement of the floating ball reaches the limit position, the floating ball does not float any more, the rising liquid level enables the floating ball to generate buoyancy, and the buoyancy and the hydraulic pressure of the liquid supplementing port reach a balance point, the floating ball valve is closed. The float valve is characterized in that the direction of the pressure for closing the water flow (provided by the buoyancy of the float ball) is opposite to the direction of the water pressure of the water flow and offset with each other, water is replenished when the closing pressure is smaller than the water pressure in the working process, and the water replenishment is stopped when the closing pressure is equal to the water pressure. The closing pressure is always less than or equal to the replenishing pressure (water flow pressure). Although the external blocking type liquid level floating ball valve control device can also realize the closing or opening of the liquid supplementing port, the external blocking type liquid level floating ball valve control device has the following defects: 1. when the water pressure of the fluid infusion port fluctuates, the liquid level controlled by the floating ball also fluctuates, and the stability of the liquid level is poor. 2. The floating ball has a fixed volume, so the generated buoyancy is also fixed and limited, and when the water pressure of the liquid supplementing port is greater than the buoyancy of the floating ball, the floating ball valve fails, and liquid can overflow the container to cause disasters. 3. If liquid is not totally mixed impurity such as solid particle, the foreign particles can be detained in fluid infusion mouth department, and the fluid infusion mouth is sealed to be inefficacy, and the water level loses control promptly, can cause the calamity equally. 4. When the ball float valve is used on a pipeline water dispenser with water source provided by water purification equipment (reverse osmosis machine, namely RO machine), the buoyancy of the ball float is reduced due to the slight reduction of the liquid level controlled by the ball float, the water replenishing port (namely, the water replenishing port) fails to stop water depending on the buoyancy, the water replenishing port replenishes water, the water purification equipment is started at the moment, once water is replenished, the buoyancy is increased immediately, the pressure balance is formed immediately, the water replenishing port stops replenishing water immediately, and the water production equipment is stopped immediately. The state is maintained until the water consumption is finished, which is a phenomenon that a pipeline configuration is provided with a reverse osmosis machine with large flux in the industry, and the phenomenon can cause frequent starting, and the performance and the service life of the water production equipment are seriously influenced.

In order to solve the above-mentioned various drawbacks, the applicant of the present invention has devised an internal-blocking type magnetic-driven water level control device, such as the structure disclosed in the document with chinese patent publication No. CN210135290U, in which the pressure for closing the water replenishing port by the float valve is provided by the float buoyancy and the water pressure itself, and the two pressures have the same direction, and the larger the water pressure is, the larger the closing force is, so the sealing effect is better. However, when the water tank is applied to a water pipe machine, the phenomenon that the water purifying equipment is repeatedly started cannot be effectively solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to above-mentioned prior art, provide a water level control structure of water tank with low costs, stable performance and can also avoid water purification unit to start repeatedly.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a water level control structure of a water tank comprises a valve body, a first valve core, a driving seat and a first floating ball, wherein,

the valve body is provided with a water inlet positioned at the bottom and a water outlet positioned at the top;

the first valve core is positioned in the inner cavity of the valve body, a channel for water to flow through is arranged between the first valve core and the valve body, and a first magnet is loaded on the first valve core;

the driving seat is sleeved outside the valve body, and a second magnet with the polarity opposite to that of the first magnet is arranged in the driving seat;

the first floating ball is connected with the driving seat through a lever hinged on the valve body, and can drive the driving seat to move axially along the valve body, so that the first valve core is driven to close or open the water outlet through the cooperation of the second magnet and the first magnet;

the method is characterized in that:

a low water level limiting part and a high water level limiting part are arranged on the side wall of the first floating ball from top to bottom according to a preset interval height, and one end of the lever is limited between the low water level limiting part and the high water level limiting part.

In the above scheme, a further improvement is that the first valve core includes a primary valve core capable of moving axially relative to the first valve core and a magnet seat located below the primary valve core, and a pressure relief port penetrating up and down is formed in the primary valve core; the second magnet is arranged on the magnet seat; a water inlet nozzle which is correspondingly communicated with the water outlet is hermetically arranged in the valve body, the bottom of the water inlet nozzle is provided with a primary water blocking opening which corresponds to the primary valve core, and the area of the primary water blocking opening is larger than that of the pressure relief opening; and a spring with two ends abutting between the water inlet nozzle and the primary valve core is arranged, so that the pressure relief opening of the primary valve core always has the tendency of abutting against the magnet seat to be blocked. By utilizing the pressure relief port, the first valve core can be opened to supplement water under the condition of overlarge water pressure.

In the above improved scheme, preferably, the outer side wall of the magnet seat is circumferentially provided with a plurality of guide blocks, the primary valve core is provided with a plurality of guide holes extending along the axial direction, and each guide block is located in the corresponding guide hole, so that the primary valve core can stably move relative to the magnet seat.

In the above improved scheme, the further improvement is that a primary plug capable of plugging the primary water plugging port is installed on the primary valve core, and the primary plug is provided with a through hole communicated with the pressure relief port; and the magnet seat is provided with a pressure relief plug capable of plugging the pressure relief port, so that the sealing effect is better.

In order to prevent the abnormal water inlet phenomenon, the improved water inlet structure is characterized in that a second valve core is further installed in the water inlet nozzle, an end cover with a secondary water blocking opening is installed at the water outlet, the area of the secondary water blocking opening is larger than that of the primary water blocking opening, and a second floating ball is installed after the second valve core penetrates through the secondary water blocking opening.

Preferably, the inner surface of the end cover is provided with a convex ring surrounding the secondary water blocking opening, and the convex ring can be in contact with the second valve core to seal the secondary water blocking opening. Similarly, at this time, a second-stage plug capable of plugging the convex ring is preferably mounted on the second valve core, so that a better plugging effect is achieved.

In each of the above solutions, in order to facilitate manufacturing and control, the outer side wall of the first floating ball is provided with a positioning groove extending in the up-down direction, the bottom of the positioning groove is the high water level limiting part, the middle part in the positioning groove is transversely provided with a rib to form the low water level limiting part, and one end of the lever is provided with a power protruding point which can be inserted into the positioning groove and is limited between the bottom of the positioning groove and the rib.

In each of the above aspects, it is further improved that the valve body is formed with a shaft hole into which the hinge shaft at the other end of the lever is inserted, so that the overall structure is more compact.

For convenient assembly, a connecting column is arranged on the lever adjacent to the hinge shaft, and a clamping groove for inserting the connecting column is formed in the driving seat.

Compared with the prior art, because the utility model discloses a be equipped with the spacing portion of low water level and the spacing portion of high water level on the first floater, make the one end of lever rise or the beginning of decline can not move thereupon in a period, have a relative movable scope between the two promptly, so, when being applied to on the pipeline machine, when the liquid level control surface begins to descend, first floater descends thereupon, the one end of lever is followed and is changed into the spacing in-process that offsets of low water level to the spacing portion of high water level, the lever can not drive driving seat axial displacement, just also can not let the water inlet intake, can let the water in the water tank use a lot of in this in-process, reduce the water inlet number of times of water tank, increase the inflow at every turn, thereby can solve the interior urgent problem of treating the frequent start of clean (pure) water machine of solution in the trade.

Drawings

Fig. 1 is a schematic perspective sectional view of an embodiment of the present invention;

FIG. 2 is a perspective view of FIG. 1 with the water tank removed;

FIG. 3 is an exploded perspective view of FIG. 2;

FIG. 4 is a schematic cross-sectional perspective view of the first float ball of FIG. 1;

fig. 5 is a schematic perspective view of fig. 2 with the first float, the second float, the lever and the valve body removed.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 5, the water level control structure of a water tank includes a valve body 1, a first valve core 2, a driving seat 3 and a first floating ball 4, wherein the valve body 1 is a tubular body, is vertically inserted into a mounting hole at the bottom of the water tank 100, and is hermetically connected to the water tank 100 through a sealing ring, and the mounted valve body 1 has a water inlet 11 at the bottom and a water outlet 12 at the top. The first valve core 2 is positioned in the inner cavity of the valve body 1, a channel for water to flow through is arranged between the first valve core 2 and the valve body 1, and a first magnet 5a is loaded on the first valve core 2. The drive seat 3 is fitted to the outside of the valve body 1, and a second magnet 5b having a polarity opposite to that of the first magnet 5a is provided in the drive seat 3. The first floating ball 4 is connected with the driving seat 3 through a lever 6 hinged on the valve body 1, the first floating ball 4 can drive the driving seat 3 to move axially along the valve body 1, and then the second magnet 5b and the first magnet 5a are matched to drive the first valve core 2 to close or open the water outlet 12. Like this for there is a relative movable scope between lever 6 and the first floater 4, when such water level control structure was applied to pipeline machine, when the water level control surface in the water tank began to descend, first floater descends thereupon, but the lever can not follow the motion temporarily, promptly when the one end of lever from with the spacing portion of high water level counterbalance change into the spacing in-process that offsets of low water level, the lever can not drive the drive seat axial displacement, just can not let the water inlet intake, in this section stroke, water purification unit also can not start, so can let the water in the water tank use more, can increase the inflow of intaking at every turn of water tank simultaneously, therefore adopt such water level control structure, can reduce the water intaking number of times of water tank, thereby can solve the interior problem that the pure water machine that awaits the solution of being urgent need frequently starts of trade.

In this embodiment, in order to open the first float ball 4 even under a large water pressure, the first valve element 2 is designed as follows: the first valve core 2 comprises a primary valve core 21 capable of moving relatively to the axial direction and a magnet seat 22 positioned below the primary valve core, and a pressure relief port 211 which is communicated up and down is formed in the primary valve core 21; the second magnet 5b is mounted on the magnet holder 22; a water inlet nozzle 7 which is correspondingly communicated with the water outlet is hermetically arranged in the valve body 1, the bottom of the water inlet nozzle 7 is provided with a primary water blocking opening 71 which is corresponding to the primary valve core, and the area of the primary water blocking opening 71 is larger than that of the pressure relief opening 211; and a spring 23 with two ends abutting between the water inlet nozzle and the primary valve core is arranged, so that the pressure relief opening 211 of the primary valve core 21 always has the tendency of abutting against the magnet seat 22 to be blocked.

In order to ensure smooth movement between the primary valve element 21 and the magnet holder 22, a plurality of guide blocks 221 are provided on the outer side wall of the magnet holder in the circumferential direction, a plurality of guide holes 212 extending in the axial direction are formed in the primary valve element 21, and each guide block 221 is positioned in the corresponding guide hole 212. By the cooperation of the guide block 221 and the guide hole 212, the first-stage spool 21 and the magnet holder 22 can be smoothly moved.

In consideration of the reliability of the plugging, it is preferable that the primary valve body 21 is provided with a primary plug 24 capable of plugging the primary plugging hole 71, and the primary plug 24 is provided with a through hole 241 communicating with the relief hole 211. Similarly, a pressure relief plug 25 capable of blocking the pressure relief port 211 is mounted on the magnet holder 22.

In order to prevent the first-stage choke plug 24 from being blocked and disabled, in this embodiment, it is further preferable that a second valve element 8 is further installed in the water inlet nozzle 7, an end cover 9 with a second-stage choke plug 91 is installed at the water outlet 12, the area of the second-stage choke plug 91 is larger than that of the first-stage choke plug 71, and a second floating ball 10 is installed after the second valve element 8 passes through the second-stage choke plug 91. And for better sealing effect, a convex ring 92 surrounding the secondary water shutoff port is arranged on the inner surface of the end cover 9, and the convex ring 92 can be contacted with the second valve core 8 to seal the secondary water shutoff port 91. In the same way as above, the second valve core 8 is provided with a second-stage plug 81 capable of plugging the convex ring 92.

One end of the lever 6 is designed into an arc-shaped groove 61, the opposite inner walls of the arc-shaped groove are respectively provided with a power salient point 62, the power salient point 62 is positioned between the low water level limiting part 41 and the high water level limiting part 42, concretely, the outer side wall of the first floating ball 4 is symmetrically provided with positioning grooves 43 extending in the vertical direction, the bottom of each positioning groove 43 becomes the high water level limiting part 42, the middle of each positioning groove 43 is transversely provided with a rib to form the low water level limiting part 41, and the power salient points 62 are inserted into the positioning grooves 43 on the corresponding sides and are limited between the bottom of each positioning groove 43 and the rib. The other end of the lever 6 is designed into a U-shaped groove 63, and the opposite inner wall of the U-shaped groove is provided with a hinge shaft 64, and the hinge shaft 64 (namely, a hinge point of the lever) can adopt a hinge mode in the prior art, but in the embodiment, the structure is further simplified, namely, a shaft hole 13 for inserting the hinge shaft on the other end of the lever is formed on the valve body 1. I.e. directly hinged to the valve body 1, while the lever 6 adjacent to the hinge shaft 64 is provided with a connecting post 65, and the driving seat 3 is provided with a slot 31 for inserting the connecting post.

When the water level in the water tank is lowered to a certain degree and water needs to be supplemented, one end of the lever 6 is in a state of abutting against the low water level limiting part 41, meanwhile, the primary valve core 21 moves towards the magnet seat 22 under the action of the spring 23, the pressure relief port 211 abuts against the primary plug 24, the pressure relief port 211 is closed, the primary water blocking port 71 is opened, at the moment, water flow enters from the water inlet 11, flows through the magnet seat 22, the primary valve core 21 and the primary water blocking port 71 in sequence and then enters the water inlet nozzle 7, and then flows into the water tank 100 after flowing through the secondary water blocking port 91. When the water level in the water tank 100 gradually rises and the first floating ball 4 also rises to a set height, the high water level limiting part 42 touches the power salient point 62 on the lever 6, then the driving lever 6 is supported by the shaft hole 13 arranged on the valve body 1 by taking the hinge shaft 64 as the center along with the continuous rising of the water level of the water tank 100 to do local pendulum motion upwards, the connecting column 65 arranged on the lever 6 synchronously moves upwards along with the lever 6, the driving seat 3 moves upwards along the axial direction of the valve body 1 at the moment, the first magnet 5a is driven to move upwards, the second magnet 5b is suspended at the center of the first magnet 5a under the mutual magnetic field induction of the first magnet 5a and the second magnet 5b (under the condition of neglecting the self weight of the second magnet), the magnet seat 22 in the valve body 1 is synchronously moved by the upwards displacement of the driving seat 3, due to the action of the spring 23, the magnet seat 22, the pressure relief plug 25 and the primary valve core 21 are still tightly attached together, and the pressure relief port 211 arranged on the primary valve core 21 is still in a closed state at this time. The upward displacement of the magnet seat 22 drives the first-level valve core 21 and the first-level plug 24 to move upward synchronously, when the water tank reaches a high water level, the upper end face of the first-level plug 24 is displaced to the first-level water plugging port 71 on the lower end face of the water inlet nozzle 7, at this moment, the first-level water plugging port 71 is closed by the first-level plug 24, and the water tank 100 stops water inlet. At the same time, the spring 23 is compressed and elastic potential energy is accumulated in the spring. At this time, the water level of the tank is in a high water level state, and in this state, the primary water shutoff port 71 is used as a boundary, a non-pressure region (normal pressure region) is provided outside the boundary (tank end), and a pressure region (water supply pressure) is provided inside the boundary.

In the using process, if the first-stage choke plug 24 fails to close due to uncertain reasons, water flow continues to enter the water tank 100, the water level in the water tank continues to rise, and at this time, the second floating ball 10 is triggered to float, and as the second valve core 8 is fixed on the second floating ball 10 (in the figure, the second valve core 8 is fixed on the second floating ball through a snap spring, and certainly, the second valve core can be fixedly connected in other modes), the second floating ball 10 drives the second valve core 8 and the second-stage choke plug 81 thereon to move upwards, and after the first positioning movement is achieved, the second-stage choke plug 81 blocks the second-stage choke plug 91. Because the area of the secondary water plugging port 91 is larger than that of the primary water plugging port 71, the generated plugging pressure is also larger than that of the primary water plugging port 71, at the moment, the fault protection state is realized, and the secondary plug 81 cannot be automatically opened under the non-artificial condition, thereby effectively avoiding the phenomenon of water overflow in the water tank under the abnormal state,

under normal high water level, the water level in the water tank 100 is lowered along with the proceeding of external water, at this time, the first floating ball 4 is lowered along with the water level in the water tank synchronously, but the lever 6 cannot move along with the falling of the water level in the water tank. Only when the low water level limiting part 41 arranged on the first floating ball 4 contacts the power convex point 62 arranged on the lever 6, the first floating ball 4 stops descending due to the resistance from the lever 6, (under the condition that the first ball 4 is not stressed on the water surface, the self weight of the first floating ball 4 is equal to the buoyancy, and the first floating ball 4 can continuously descend only when the acting force of the gravity of the first floating ball on the power convex point 62 exceeds the water pressure acting on the pressure relief plug 24 from the pressure relief port 211. because the area of the first-stage water blocking port 71 is larger than that of the pressure relief port 211, the generated blocking pressure is in direct proportion to the corresponding area, and therefore, the first-stage opening is necessarily the pressure relief port 211). With the water level of the water tank 100 continuing to descend, the part of the first floating ball 4 exposed from the water surface increases, the downward pressure exerted on the lever 6 by the low water level limiting part 41 also increases (at the moment, the gravity of the first floating ball is greater than the buoyancy), the downward pressure acting on the connecting column 65 increases geometrically through the lever 6, when the downward pressure acting on the connecting column 65 is greater than the water pressure acting on the pressure relief plug 25, the first floating ball 4 continues to descend, at the moment, the pressure relief opening 211 is opened, meanwhile, the pressure acting on the first-stage plug 24 disappears, the elastic potential energy accumulated before the spring 23 is released, and the first-stage plug 71 is opened under the action of the gravity of the first floating ball 4. Meanwhile, the water pressure acting force acting on the connecting column 65 of the lever 6 disappears, the balance of the lever 6 is broken, and the first floating ball 4 loses the water pressure acting force and falls to the water surface balance position in a free falling mode. The water level is now low. And simultaneously the water tank returns to the previous water replenishing state. This is repeated.

While embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A water level control structure of a water tank comprises a valve body (1), a first valve core (2), a driving seat (3) and a first floating ball (4), wherein,

the valve body (1) is provided with a water inlet (11) positioned at the bottom and a water outlet (12) positioned at the top;

the first valve core (2) is positioned in the inner cavity of the valve body (1), a channel for water to flow through is arranged between the first valve core and the valve body, and a first magnet (5a) is loaded on the first valve core (2);

the driving seat (3) is sleeved outside the valve body (1), and a second magnet (5b) with the polarity opposite to that of the first magnet (5a) is arranged in the driving seat (3);

the first floating ball (4) is connected with the driving seat (3) through a lever (6) hinged on the valve body (1), the first floating ball (4) can drive the driving seat (3) to move axially along the valve body (1), and the first valve core (2) is driven to close or open the water outlet (12) through the cooperation of the second magnet (5b) and the first magnet (5 a);

the method is characterized in that:

a low water level limiting part (41) and a high water level limiting part (42) are arranged on the side wall of the first floating ball (4) from top to bottom according to a preset interval height, and one end of the lever (6) is limited between the low water level limiting part (41) and the high water level limiting part (42).

2. The water level control structure of a water tank according to claim 1, wherein: the first valve core (2) comprises a primary valve core (21) capable of moving in the axial direction relatively and a magnet seat (22) positioned below the primary valve core, and a pressure relief port (211) which is communicated up and down is formed in the primary valve core; the second magnet (5b) is mounted on the magnet base (22); a water inlet nozzle (7) which is correspondingly communicated with the water outlet is hermetically arranged in the valve body (1), the bottom of the water inlet nozzle is provided with a primary water blocking opening (71) which corresponds to the primary valve core, and the area of the primary water blocking opening (71) is larger than that of the pressure relief opening (211); and a spring (23) with two ends abutting between the water inlet nozzle and the primary valve core is arranged, so that a pressure relief opening (211) of the primary valve core always has the tendency of abutting against a magnet seat (22) to be blocked.

3. The water level control structure of a water tank according to claim 2, wherein: the outer side wall of the magnet seat (22) is circumferentially provided with a plurality of guide blocks (221), the primary valve core (21) is provided with a plurality of guide holes (212) extending along the axial direction, and each guide block is positioned in the corresponding guide hole.

4. The water level control structure of a water tank according to claim 2, wherein: a primary plug (24) capable of plugging the primary water plugging port is arranged on the primary valve core (21), and a through hole (241) communicated with the pressure relief port is formed in the primary plug (24); and a pressure relief plug (25) capable of plugging the pressure relief opening is arranged on the magnet seat.

5. The water level control structure of a water tank according to claim 2, wherein: still install second case (8) in intake nozzle (7), drain outlet department installs end cover (9) of taking second grade stifled mouth of a river (91), and the area of this second grade stifled mouth of a river (91) is greater than the area of one-level stifled mouth of a river (71), second floater (10) are installed after second case (8) pass second grade stifled mouth of a river (91).

6. The water level control structure of a water tank according to claim 5, wherein: and a convex ring (92) surrounding the secondary water plugging opening (91) is arranged on the inner surface of the end cover (9), and the convex ring (92) can be in contact with the second valve core (8) to seal the secondary water plugging opening (91).

7. The water level control structure of a water tank according to claim 6, wherein: and a secondary plug (81) capable of plugging the convex ring is arranged on the second valve core (8).

8. The water level control structure of a water tank as claimed in any one of claims 1 to 7, wherein: the outer side wall of the first floating ball (4) is provided with a positioning groove (43) extending in the vertical direction, the bottom of the positioning groove (43) is a high water level limiting part, the middle part in the positioning groove (43) is transversely provided with a rib to form a low water level limiting part (41), and one end of the lever (6) is provided with a power convex point (62) which can be inserted into the positioning groove and is limited between the bottom of the positioning groove and the rib.

9. The water level control structure of a water tank as claimed in any one of claims 1 to 7, wherein: and a shaft hole (13) for inserting a hinge shaft (64) at the other end of the lever (6) is formed in the valve body (1).

10. The water level control structure of a water tank according to claim 9, wherein: a connecting column (65) is arranged on the lever (6) adjacent to the hinge shaft, and a clamping groove (31) for inserting the connecting column (65) is formed in the driving seat (3).

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