Circulating water replenishing equipment and method for keeping constant liquid level of squeezing water tank
By using a mechanically structured circulating water replenishment device, and employing magnetic attraction and lever mechanisms to control the water inlet channel, the problem of high dependence on electronic components is solved, achieving stability and flexible adaptability of the water level in the pressing tank.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-02
- Publication Date
- 2026-03-10
AI Technical Summary
The existing automatic water replenishment control system for pressing water tanks relies on electronic components, which has a high failure rate and requires external power supply, making it difficult to maintain a stable liquid level during unexpected power outages.
The circulating water replenishment equipment adopts a mechanical structure, uses magnetic attraction and lever mechanism to control the opening and closing of the water inlet channel, and combines float ball and detection rod to realize automatic water replenishment. The distance between the minimum and maximum water levels is adjusted by the length of the movable notch.
It achieves automated water replenishment without the need for external energy supply, reduces the failure rate, flexibly adapts to different pressing water tanks, and avoids unstable liquid levels due to power outages.
Smart Images

Figure CN121635503A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of water tank technology for pressing, specifically to a circulating water replenishment device and method for maintaining a constant liquid level in the water tank for pressing. Background Technology
[0002] The pressing water tank is a key container in the pressing system for achieving water resource recycling. Its core function is to provide a continuous supply of process water to the press while collecting and reusing the filtrate generated during the pressing process, forming a cycle. It maintains a stable water level through an automatic water replenishment mechanism: when the water level sensor detects that the level is too low, it instructs the water replenishment valve to open and inject fresh water; when the water level is too high, it discharges water through the overflow port to prevent flooding. This "circulation-replenishment" system significantly reduces fresh water consumption and wastewater discharge, ensuring the continuous and stable operation of the press while achieving energy conservation, environmental protection, and economical operation.
[0003] Existing control systems for replenishing water in the pressing tank mostly use electronic components for automated control. However, electronic components have a high failure rate and rely on external power. Therefore, a mechanical structure is needed to achieve automated water replenishment and keep the liquid level in the pressing tank constant within a certain height range. Summary of the Invention
[0004] To solve the above-mentioned technical problems, the present invention provides a circulating water replenishment device and method for maintaining a constant liquid level in the pressing water tank.
[0005] The technical solution of the present invention is: a circulating water replenishment device and method for maintaining a constant liquid level in a pressing water tank, comprising a cover for threaded connection with the opening of the pressing water tank, the cover having a circular notch in the middle, an annular plate fixedly connected to the cover below the circular notch, a connecting plate threadedly connected inside the annular plate, a water inlet channel and a measuring channel inside the connecting plate, a water inlet interface fixedly connected to a connecting pipe above the water inlet channel, a detection rod movably connected inside the measuring channel, a float ball installed below the detection rod, and a control mechanism for controlling the water inlet above the connecting plate.
[0006] Furthermore, an annular constriction is fixedly connected to the inner wall of the water inlet, a magnetic ball is movably connected above the annular constriction, a barrier net is fixedly connected to the inner wall of the water inlet above the magnetic ball, and a water inlet pipe is externally connected to the upper end of the water inlet.
[0007] Explanation: The magnetic attraction of the control mechanism controls the up-and-down movement of the magnetic ball within the water inlet. When the magnetic ball moves to the annular constriction, it blocks the annular constriction, thus preventing the water from flowing downwards.
[0008] Furthermore, the top of the detection rod is provided with a movable notch, and a sliding component is installed on each side of the movable notch. A rotating rod is rotatably connected between the two sliding components.
[0009] Note: The sliding component moves up and down at the movable notch. The length of the movable notch determines how low the water level in the pressing tank drops before water is replenished.
[0010] Furthermore, the sliding assembly includes a slide rail disposed on the detection rod, the slide rail being located outside the movable notch, and a slider being slidably connected inside the slide rail, the inner side of the slider being rotatably connected to the rotating rod.
[0011] Note: The rotating rod moves within the sliding groove. The rotating rod and the slider are connected in a rotating manner, which reduces the friction between the rotating rod and the inner wall of the sliding groove.
[0012] Furthermore, the control mechanism includes a hinged base, a lever rotatably connected above the hinged base, a sliding groove on the right side of the lever, the sliding groove being movably engaged with the rotating rod, a ring magnet fixedly connected to the left end of the lever, the ring magnet being movably sleeved on the outside of the water inlet, a magnetic column fixedly connected to each of the left and right sides of the lever, and magnetic seats magnetically attracted to the magnetic columns fixedly connected to each of the two sides of the upper surface of the hinged base.
[0013] Explanation: The ring magnet attracts the magnetic ball, and the magnetic attraction between the magnetic column and the magnetic base, along with the magnetic attraction between the magnetic column and the magnetic base, keeps the lever tilted as the slider slides within the slide rail.
[0014] Furthermore, the sliding groove includes a left sliding groove and a right sliding groove. The right side wall of the left sliding groove is provided with two threaded holes, and the right side wall of the right sliding groove is provided with a through hole. The threaded holes and the through hole are fixedly connected by a screw.
[0015] Note: The left and right sliding grooves are detachably connected by a screw, which facilitates the installation of the rotating rod inside the sliding groove.
[0016] Furthermore, a rotating ball is rotatably connected to the top of the float, and the upper part of the rotating ball is fixedly connected to the lower end of the detection rod. The float has a cavity inside, and a counterweight is fixedly connected to the bottom of the cavity.
[0017] Note: When water is added or the water level drops, the waves on the water surface will cause the detection rod to tilt, increasing the friction between the detection rod and the measuring channel, which will lead to insufficient sensitivity of the control mechanism. The counterweight at the bottom of the float can make the float automatically return to a vertical position after being affected by the waves, so that the rotating ball is located on the vertical axis of the center of the float.
[0018] Furthermore, the detection rod includes an upper rod connected to the control mechanism and a lower rod connected to the float. The upper rod has a connecting hole inside its lower part, and the connecting hole is threadedly connected to the upper end of the lower rod.
[0019] Note: The connection between the upper and lower rods can be adjusted to change the length of the detection rod according to the depth of the water tank.
[0020] Furthermore, an adjusting nut is threaded onto the lower rod, and the upper surface of the adjusting nut abuts against the lower end of the upper rod.
[0021] Note: The adjusting nut keeps the positions of the upper and lower rods fixed, preventing the lower rod from rotating relative to the upper rod during long-term use, which would cause a change in the length of the detection rod.
[0022] Furthermore, a method for maintaining a constant liquid level in a pressing water tank through circulating water replenishment, based on the aforementioned circulating water replenishment device for maintaining a constant liquid level in a pressing water tank, includes the following steps: S1. Connect the lid to the inlet of the pressing water tank with a thread. As the water level in the pressing water tank drops, the float moves downward with the detection rod. Since the rotating rod is engaged with the right end of the lever, the rotating rod moves upward relative to the detection rod and abuts against the upper end of the movable notch. The water level continues to drop, causing the rotating rod to move downward, which in turn causes the right end of the lever to move downward. The right end of the lever moves downward, which in turn causes the ring magnet on the left side of the lever to move upward. The ring magnet attracts the magnetic ball to move upward, so that the water enters the pressing water tank from the ring constriction through the water inlet channel. The magnetic column on the right side of the hinge base is magnetically attracted to the magnetic seat, keeping the lever in a left-high-right-low posture. S2. As the water level rises, the float moves the detection rod upward, and the relative position of the rotating rod and the detection rod moves downward. Then the rotating rod moves to the lower end of the movable notch. The water level continues to rise, and the detection rod rotates upward, causing the right end of the lever to move upward. This causes the ring magnet on the left side of the lever to move downward, causing the magnetic ball to block the ring constriction, preventing water from entering the pressing tank from the water inlet.
[0023] The beneficial effects of this invention are: This invention requires no external energy supply and achieves automated water replenishment through a mechanical structure. The distance between the lowest and highest water levels is determined by the length of the movable notch. Compared to electronic control structures, this invention eliminates concerns about power outages preventing timely water replenishment. Mechanical structures also have a lower failure rate compared to electronic components. The detachable connection between the lid and the connecting plate allows for flexibility in practical applications, requiring only the replacement of different sized lids depending on the type of pressing tank. Attached Figure Description
[0024] Figure 1 This is a cross-sectional structural diagram of the present invention.
[0025] Figure 2 yes Figure 1 Enlarged view of point A in the middle.
[0026] Figure 3 yes Figure 1 Enlarged view of point B in the middle.
[0027] Figure 4 This is a top view of the lid of the present invention.
[0028] Figure 5 This is a left view of the movable notch of the present invention.
[0029] Among them, 1-cover, 11-circular notch, 12-ring plate, 2-connecting plate, 21-water inlet channel, 22-measuring channel, 3-water inlet interface, 4-detection rod, 5-float, 6-control mechanism, 31-ring constriction, 32-magnetic ball, 33-barrier net, 34-water inlet pipe, 41-movable notch, 42-sliding component, 43-rotating rod, 421-slide rail, 422-slider, 61-hinged base, 62-lever, 63-sliding groove, 64-ring magnet, 65-magnetic column, 66-magnetic seat, 631-left sliding groove, 632-right sliding groove, 633-threaded hole, 634-through hole, 635-screw, 51-rotating ball, 52-cavity, 53-counterweight, 44-upper rod, 45-lower rod, 46-connecting hole, 47-adjusting nut. Detailed Implementation
[0030] Example 1: like Figure 1 , Figure 4 As shown, a circulating water replenishment device and method for maintaining a constant liquid level in a pressing water tank includes a cover 1 for threaded connection to the opening of the pressing water tank. The cover 1 has a circular notch 11 in the middle. Below the circular notch 11, there is an annular plate 12 fixedly connected to the cover 1. The annular plate 12 is threadedly connected to a connecting plate 2. The connecting plate 2 has a water inlet channel 21 and a measuring channel 22. A water inlet interface 3 is fixedly connected to a connecting pipe above the water inlet channel 21. A detection rod 4 is movably connected inside the measuring channel 22. A float ball 5 is installed below the detection rod 4. A control mechanism 6 for controlling the water inlet is provided above the connecting plate 2.
[0031] An annular constriction 31 is fixedly connected to the inner wall of the water inlet interface 3. A magnetic ball 32 is movably connected above the annular constriction 31. A barrier net 33 is fixedly connected to the inner wall of the water inlet interface 3 above the magnetic ball 32. A water inlet pipe 34 is connected to the upper end of the water inlet interface 3.
[0032] The magnetic attraction of the control mechanism 6 controls the magnetic ball 32 to move up and down in the water inlet 3. When the magnetic ball 32 moves to the annular constriction 31, it blocks the annular constriction 31, thus preventing the water from flowing downward.
[0033] The top of the detection rod 4 is provided with a movable notch 41, and a sliding component 42 is installed on each side of the movable notch 41. A rotating rod 43 is rotatably connected between the two sliding components 42.
[0034] The sliding component 42 moves up and down at the movable notch 41. The length of the movable notch 41 determines how high the water level in the pressing water tank drops before water is replenished.
[0035] The sliding assembly 42 includes a slide rail 421 disposed on the detection rod 4. The slide rail 421 is located outside the movable notch 41. A slider 422 is slidably connected inside the slide rail 421. The inner side of the slider 422 is rotatably connected to the rotating rod 43.
[0036] The rotating rod 43 moves within the sliding groove 63. The rotatable connection between the rotating rod 43 and the slider 422 reduces the friction between the rotating rod 43 and the inner wall of the sliding groove 63.
[0037] The control mechanism 6 includes a hinged base 61, a lever 62 rotatably connected above the hinged base 61, a sliding groove 63 on the right side of the lever 62, which is movably engaged with the rotating rod 43, a ring magnet 64 fixedly connected to the left end of the lever 62, the ring magnet 64 movably sleeved on the outside of the water inlet 3, a magnetic column 65 fixedly connected to the left and right sides of the lever 62 respectively, and magnetic seats 66 that are magnetically attracted to the magnetic columns 65 fixedly connected to the two sides of the upper surface of the hinged base 61 respectively.
[0038] The ring magnet magnetically attracts the magnetic ball 32. The magnetic attraction between the magnetic column 65 and the magnetic base 66, and the magnetic attraction between the magnetic column 65 and the magnetic base 66 when the slider 422 slides in the slide rail 421, can keep the lever 62 in an inclined state.
[0039] Example 2: The difference between this embodiment and embodiment 1 is that, in this embodiment, as Figure 2 As shown, the sliding groove 63 includes a left sliding groove 631 and a right sliding groove 632. The right side wall of the left sliding groove 631 is provided with two threaded holes 633, and the right side wall of the right sliding groove 632 is provided with a through hole 634. The threaded holes 633 and the through hole 634 are fixedly connected by a screw 635.
[0040] Compared to Embodiment 1, in this embodiment, the left sliding groove 631 and the right sliding groove 632 are detachably connected by a screw 635, which facilitates the installation of the rotating rod in the sliding groove 63.
[0041] Example 3: The difference between this embodiment and embodiment 2 is that, in this embodiment, a rotating ball 51 is rotatably connected to the top of the float 5, the upper part of the rotating ball 51 is fixedly connected to the lower end of the detection rod 4, the float 5 has a cavity 52 inside, and a counterweight 53 is fixedly connected to the bottom of the cavity 52.
[0042] Compared to Example 2, in this embodiment, when water is replenished or the water level drops, the waves on the water surface will cause the detection rod 4 to tilt, increasing the friction between the detection rod 4 and the measurement channel 22, which will lead to the control mechanism 6 being less sensitive. The counterweight 53 at the bottom of the float 5 can make the float 5 automatically return to a vertical position after being affected by waves, so that the rotating ball 51 is located on the vertical axis of the center of the float 5.
[0043] Example 4: The difference between this embodiment and embodiment 3 is that in this embodiment, the detection rod 4 includes an upper rod 44 connected to the control mechanism 6 and a lower rod 45 connected to the float 5. The upper rod 44 has a connecting hole 46 inside, and the connecting hole 46 is threadedly connected to the upper end of the lower rod 45.
[0044] Compared to Example 3, in this embodiment, the connection between the upper rod 44 and the lower rod 45 can be adjusted to change the length of the detection rod 4 according to the depth of the water tank.
[0045] Example 5: The difference between this embodiment and embodiment 4 is that, in this embodiment, as Figure 3 As shown, an adjusting nut 47 is threaded onto the lower rod 45, and the upper surface of the adjusting nut 47 abuts against the lower end of the upper rod 44.
[0046] Compared to Example 4, in this embodiment, adjusting nut 47 can keep the positions of upper rod 44 and lower rod 45 fixed, preventing the lower rod 45 from rotating relative to upper rod 44 during long-term use, which would cause the length of detection rod 4 to change.
[0047] Example 6: This embodiment provides a circulating water replenishment method for maintaining a constant liquid level in a press water tank. Based on the above-mentioned circulating water replenishment device for maintaining a constant liquid level in a press water tank, the method includes the following steps: S1. Connect the cover 1 to the inlet of the pressing water tank with a thread. As the water level in the pressing water tank drops, the float 5 moves downward with the detection rod 4. Since the rotating rod 43 is engaged with the right end of the lever 62, the rotating rod 43 moves upward relative to the detection rod 4 and abuts against the upper end of the movable notch 41. The water level continues to drop, causing the rotating rod 43 to move downward, which in turn causes the right end of the lever 62 to move downward. The right end of the lever 62 moves downward, which in turn causes the annular magnet on the left side of the lever 62 to move upward. The annular magnet 64 attracts the magnetic ball 32 to move upward, so that the water enters the pressing water tank from the annular constriction 31 through the water inlet channel 21. The magnetic column 65 on the right side of the hinged base 61 and the magnetic seat 66 are magnetically attracted, so that the lever 62 maintains a left-high-right-low posture. S2. As the water level rises, the float 5 drives the detection rod 4 to move upward. The relative position of the rotating rod 43 and the detection rod 4 moves downward, and then the rotating rod 43 moves to the lower end of the movable notch 41. The water level continues to rise, and the detection rod 4 drives the rotation upward, which drives the right end of the lever 62 to move upward. This causes the ring magnet 64 on the left side of the lever 62 to move downward, causing the magnetic ball 32 to block the annular constriction 31, preventing water from entering the pressing water tank from the water inlet 3.
Claims
1. A circulating water replenishment apparatus and method for maintaining a constant water level in a press tank, comprising: The utility model provides a cover (1) for and the screw joint of squeezing water tank mouth, the middle part of cover (1) is equipped with circular notch (11), the lower side of circular notch (11) is equipped with the annular plate (12) of fixed connection with cover (1), the inside screw joint of annular plate (12) is equipped with connecting disc (2), the inside of connecting disc (2) is equipped with a water inlet channel (21) and a measuring channel (22), the upper fixed communication pipe of water inlet channel (21) has water inlet interface (3), the inside movable connection of measuring channel (22) has detection rod (4), the lower installation of detection rod (4) has float ball (5), the upper of connecting disc (2) is equipped with control mechanism (6) for controlling water inlet.
2. A recirculating water supply apparatus for maintaining a constant water level in a press tank as claimed in claim 1, wherein, The inner wall of the water inlet interface (3) is fixedly connected with an annular necking (31), the upper side of the annular necking (31) is movably connected with a magnetic ball (32), the upper side of the magnetic ball (32) is provided with a blocking net (33) fixedly connected with the inner wall of the water inlet interface (3), and the upper end of the water inlet interface (3) is connected with a water inlet pipe (34) outside.
3. A recirculating water supply apparatus for maintaining a constant water level in a press tank as claimed in claim 2, wherein, The top of the detection rod (4) is provided with a movable notch (41), and one sliding assembly (42) is installed on each side of the movable notch (41). A rotating rod (43) is rotatably connected between the two sliding assemblies (42).
4. A water replenishment system for maintaining a constant water level in a press tank as set forth in claim 3, wherein, The sliding assembly (42) comprises a sliding rail (421) provided on the detection rod (4), the sliding rail (421) is located outside the movable notch (41), a sliding block (422) is slidably connected in the sliding rail (421), and the inner side of the sliding block (422) is rotatably connected with the rotating rod (43).
5. A water replenishment system for maintaining a constant water level in a pressurized water tank as claimed in claim 4, wherein, The control mechanism (6) comprises a hinged base (61), a lever (62) is rotatably connected to the upper side of the hinged base (61), a sliding groove (63) is arranged on the right side of the lever (62), the sliding groove (63) is movably connected with the rotating rod (43), a ring-shaped magnet (64) is fixedly connected to the left end of the lever (62), the ring-shaped magnet (64) is movably sleeved outside the water inlet interface (3), one magnetic attraction column (65) is fixedly connected to each of the left and right sides of the lever (62), and a magnetic attraction seat (66) is fixedly connected to each of the left and right sides of the upper surface of the hinged base (61) and magnetically attracted to the magnetic attraction column (65).
6. A water replenishment system for maintaining a constant water level in a pressurized water tank as claimed in claim 5, wherein, The sliding groove (63) comprises a left sliding groove (631) and a right sliding groove (632), two threaded holes (633) are arranged on the right side wall of the left sliding groove (631), a through hole (634) is arranged on the right side wall of the right sliding groove (632), and the threaded hole (633) and the through hole (634) are fixedly connected by a screw rod (635).
7. A recirculating water supply system for maintaining a constant water level in a press tank as claimed in claim 1 wherein, A rotating ball (51) is rotatably connected to the middle top of the float ball (5), the upper side of the rotating ball (51) is fixedly connected with the lower end of the detection rod (4), a cavity (52) is arranged in the float ball (5), and a counterweight (53) is fixedly connected to the inner bottom of the cavity (52).
8. A recirculating water supply system for maintaining a constant water level in a press tank as claimed in claim 1 wherein, The detection rod (4) comprises an upper rod (44) connected with the control mechanism (6) and a lower rod (45) connected with the floating ball (5), and a connecting hole (46) is arranged inside the lower rod (44) and is threadedly connected with the upper end of the lower rod (45).
9. A recirculating water supply system for maintaining a constant water level in a press tank as claimed in claim 1 wherein, The detection rod (4) comprises an upper rod (44) connected with the control mechanism (6) and a lower rod (45) connected with the floating ball (5), and a connecting hole (46) is arranged inside the lower rod (44) and is threadedly connected with the upper end of the lower rod (45).
10. A method of maintaining a constant level of water in a press tank, based on the apparatus for maintaining a constant level of water in a press tank according to claim 5, characterized in that, The method comprises the following steps: S1, the cover (1) is threadedly connected with the water inlet of the squeezing water tank, as the water level in the squeezing water tank drops, the floating ball (5) moves downward with the detection rod (4), as the rotating rod (43) is clamped with the right end of the lever (62), the rotating rod (43) moves upward relative to the detection rod (4) and abuts against the upper end of the movable gap (41), the water level continues to drop, the rotating rod (43) is driven to move downward, and the right end of the lever (62) is driven to move downward, the right end of the lever (62) moves downward, and the annular magnet on the left side of the lever (62) is driven to move upward, the annular magnet (64) attracts the magnetic ball (32) to move upward, so that the water body enters the squeezing water tank from the annular neck (31) through the water inlet channel (21), the magnetic attraction column (65) on the right side of the hinged base (61) is magnetically attracted to the magnetic attraction seat (66), and the lever (62) keeps the posture of being higher on the left side and lower on the right side; S2, as the water level rises, the floating ball (5) drives the detection rod (4) to move upward, the relative position of the rotating rod (43) and the detection rod (4) moves downward, and then the rotating rod (43) moves to the lower end of the movable gap (41), the water level continues to rise, the detection rod (4) drives the rotating rod to move upward, drives the right end of the lever (62) to move upward, and then the annular magnet (64) on the left side of the lever (62) moves downward, so that the magnetic ball (32) blocks the annular neck (31), and the water body cannot enter the squeezing water tank from the water inlet (3).